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Fix breakpoint support in Nios II user-mode emulation.
[thirdparty/qemu.git] / linux-user / syscall.c
CommitLineData
31e31b8a
FB		 1/*
2 * Linux syscalls
5fafdf24 3 *
31e31b8a
FB		 4 * Copyright (c) 2003 Fabrice Bellard
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
8167ee88 17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
31e31b8a 18 */
d5b3a9b6 19#define _ATFILE_SOURCE
d39594e9 20#include "qemu/osdep.h"
f348b6d1
VB		 21#include "qemu/cutils.h"
22#include "qemu/path.h"
31e31b8a
FB		 23#include <elf.h>
24#include <endian.h>
c56dc774 25#include <grp.h>
d08d3bb8
TS		 26#include <sys/ipc.h>
27#include <sys/msg.h>
31e31b8a 28#include <sys/wait.h>
31e31b8a 29#include <sys/mount.h>
586b0bef
JS		 30#include <sys/file.h>
31#include <sys/fsuid.h>
32#include <sys/personality.h>
39b9aae1 33#include <sys/prctl.h>
31e31b8a 34#include <sys/resource.h>
31e31b8a 35#include <sys/swap.h>
e0eb210e 36#include <linux/capability.h>
31e31b8a 37#include <sched.h>
19f59bce 38#include <sys/timex.h>
31e31b8a 39#include <sys/socket.h>
607175e0 40#include <sys/un.h>
31e31b8a 41#include <sys/uio.h>
0839f11c 42#include <poll.h>
32f36bce 43#include <sys/times.h>
8853f86e 44#include <sys/shm.h>
fa294816 45#include <sys/sem.h>
56c8f68f 46#include <sys/statfs.h>
ebc05488 47#include <utime.h>
a5448a7d 48#include <sys/sysinfo.h>
e36800c9 49#include <sys/signalfd.h>
72f03900 50//#include <sys/user.h>
8853f86e 51#include <netinet/ip.h>
7854b056 52#include <netinet/tcp.h>
86fcd946 53#include <linux/wireless.h>
920394db 54#include <linux/icmp.h>
ee1ac3a1
HD		 55#include <linux/icmpv6.h>
56#include <linux/errqueue.h>
d6d6d6fe 57#include <linux/random.h>
5a61cb60 58#include "qemu-common.h"
d80a1905
RV		 59#ifdef CONFIG_TIMERFD
60#include <sys/timerfd.h>
61#endif
9788c9ca 62#ifdef TARGET_GPROF
6d946cda
AJ		 63#include <sys/gmon.h>
64#endif
c2882b96
RV		 65#ifdef CONFIG_EVENTFD
66#include <sys/eventfd.h>
67#endif
3b6edd16
PM		 68#ifdef CONFIG_EPOLL
69#include <sys/epoll.h>
70#endif
a790ae38 71#ifdef CONFIG_ATTR
1de7afc9 72#include "qemu/xattr.h"
a790ae38 73#endif
a8fd1aba
PM		 74#ifdef CONFIG_SENDFILE
75#include <sys/sendfile.h>
76#endif
31e31b8a
FB		 77
78#define termios host_termios
79#define winsize host_winsize
80#define termio host_termio
04369ff2
FB		 81#define sgttyb host_sgttyb /* same as target */
82#define tchars host_tchars /* same as target */
83#define ltchars host_ltchars /* same as target */
31e31b8a
FB		 84
85#include <linux/termios.h>
86#include <linux/unistd.h>
31e31b8a
FB		 87#include <linux/cdrom.h>
88#include <linux/hdreg.h>
89#include <linux/soundcard.h>
19b84f3c 90#include <linux/kd.h>
8fbd6b52 91#include <linux/mtio.h>
350d1779 92#include <linux/fs.h>
dace20dc 93#if defined(CONFIG_FIEMAP)
285da2b9 94#include <linux/fiemap.h>
dace20dc 95#endif
f7680a55 96#include <linux/fb.h>
6c753a63
CT		 97#if defined(CONFIG_USBFS)
98#include <linux/usbdevice_fs.h>
a133367e 99#include <linux/usb/ch9.h>
6c753a63 100#endif
f7680a55 101#include <linux/vt.h>
56e904ec 102#include <linux/dm-ioctl.h>
c07ecc68 103#include <linux/reboot.h>
7ff7b666 104#include <linux/route.h>
f57d4192 105#include <linux/filter.h>
fff8c539 106#include <linux/blkpg.h>
a82ea939 107#include <netpacket/packet.h>
6c5b5645 108#include <linux/netlink.h>
d7e4036e 109#include "linux_loop.h"
18cb0088 110#include "uname.h"
31e31b8a 111
3ef693a0 112#include "qemu.h"
f7e6a401 113#include "fd-trans.h"
31e31b8a 114
5ea2fc84
PM		 115#ifndef CLONE_IO
116#define CLONE_IO 0x80000000 /* Clone io context */
117#endif
118
119/* We can't directly call the host clone syscall, because this will
120 * badly confuse libc (breaking mutexes, for example). So we must
121 * divide clone flags into:
122 * * flag combinations that look like pthread_create()
123 * * flag combinations that look like fork()
124 * * flags we can implement within QEMU itself
125 * * flags we can't support and will return an error for
126 */
127/* For thread creation, all these flags must be present; for
128 * fork, none must be present.
129 */
130#define CLONE_THREAD_FLAGS \
131 (CLONE_VM | CLONE_FS | CLONE_FILES | \
132 CLONE_SIGHAND | CLONE_THREAD | CLONE_SYSVSEM)
133
134/* These flags are ignored:
135 * CLONE_DETACHED is now ignored by the kernel;
136 * CLONE_IO is just an optimisation hint to the I/O scheduler
137 */
138#define CLONE_IGNORED_FLAGS \
139 (CLONE_DETACHED | CLONE_IO)
140
141/* Flags for fork which we can implement within QEMU itself */
142#define CLONE_OPTIONAL_FORK_FLAGS \
143 (CLONE_SETTLS | CLONE_PARENT_SETTID | \
144 CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID)
145
146/* Flags for thread creation which we can implement within QEMU itself */
147#define CLONE_OPTIONAL_THREAD_FLAGS \
148 (CLONE_SETTLS | CLONE_PARENT_SETTID | \
149 CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID | CLONE_PARENT)
150
151#define CLONE_INVALID_FORK_FLAGS \
152 (~(CSIGNAL | CLONE_OPTIONAL_FORK_FLAGS | CLONE_IGNORED_FLAGS))
153
154#define CLONE_INVALID_THREAD_FLAGS \
155 (~(CSIGNAL | CLONE_THREAD_FLAGS | CLONE_OPTIONAL_THREAD_FLAGS | \
156 CLONE_IGNORED_FLAGS))
157
158/* CLONE_VFORK is special cased early in do_fork(). The other flag bits
159 * have almost all been allocated. We cannot support any of
160 * CLONE_NEWNS, CLONE_NEWCGROUP, CLONE_NEWUTS, CLONE_NEWIPC,
161 * CLONE_NEWUSER, CLONE_NEWPID, CLONE_NEWNET, CLONE_PTRACE, CLONE_UNTRACED.
162 * The checks against the invalid thread masks above will catch these.
163 * (The one remaining unallocated bit is 0x1000 which used to be CLONE_PID.)
164 */
30813cea 165
71a8f7fe
TB		 166/* Define DEBUG_ERESTARTSYS to force every syscall to be restarted
167 * once. This exercises the codepaths for restart.
168 */
169//#define DEBUG_ERESTARTSYS
31e31b8a 170
1a9353d2 171//#include <linux/msdos_fs.h>
6556a833
AJ		 172#define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct linux_dirent [2])
173#define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct linux_dirent [2])
1a9353d2 174
70a194b9
FB		 175#undef _syscall0
176#undef _syscall1
177#undef _syscall2
178#undef _syscall3
179#undef _syscall4
180#undef _syscall5
83fcb515 181#undef _syscall6
70a194b9 182
83fcb515 183#define _syscall0(type,name) \
8fcd3692 184static type name (void) \
83fcb515
FB		 185{ \
186 return syscall(__NR_##name); \
187}
70a194b9 188
83fcb515 189#define _syscall1(type,name,type1,arg1) \
8fcd3692 190static type name (type1 arg1) \
83fcb515
FB		 191{ \
192 return syscall(__NR_##name, arg1); \
70a194b9
FB		 193}
194
83fcb515 195#define _syscall2(type,name,type1,arg1,type2,arg2) \
8fcd3692 196static type name (type1 arg1,type2 arg2) \
83fcb515
FB		 197{ \
198 return syscall(__NR_##name, arg1, arg2); \
70a194b9
FB		 199}
200
83fcb515 201#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
8fcd3692 202static type name (type1 arg1,type2 arg2,type3 arg3) \
83fcb515
FB		 203{ \
204 return syscall(__NR_##name, arg1, arg2, arg3); \
70a194b9
FB		 205}
206
83fcb515 207#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
8fcd3692 208static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4) \
83fcb515
FB		 209{ \
210 return syscall(__NR_##name, arg1, arg2, arg3, arg4); \
70a194b9
FB		 211}
212
83fcb515
FB		 213#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
214 type5,arg5) \
8fcd3692 215static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
83fcb515
FB		 216{ \
217 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \
70a194b9
FB		 218}
219
83fcb515
FB		 220
221#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
222 type5,arg5,type6,arg6) \
8fcd3692
BS		 223static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5, \
224 type6 arg6) \
83fcb515
FB		 225{ \
226 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
70a194b9 227}
83fcb515 228
70a194b9 229
31e31b8a 230#define __NR_sys_uname __NR_uname
72f03900 231#define __NR_sys_getcwd1 __NR_getcwd
72f03900 232#define __NR_sys_getdents __NR_getdents
dab2ed99 233#define __NR_sys_getdents64 __NR_getdents64
c6cda17a 234#define __NR_sys_getpriority __NR_getpriority
66fb9763 235#define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
cf8b8bfc 236#define __NR_sys_rt_tgsigqueueinfo __NR_rt_tgsigqueueinfo
7494b0f9 237#define __NR_sys_syslog __NR_syslog
bd0c5661 238#define __NR_sys_futex __NR_futex
39b59763
AJ		 239#define __NR_sys_inotify_init __NR_inotify_init
240#define __NR_sys_inotify_add_watch __NR_inotify_add_watch
241#define __NR_sys_inotify_rm_watch __NR_inotify_rm_watch
31e31b8a 242
b1cef6d0 243#if defined(__alpha__) || defined(__x86_64__) || defined(__s390x__)
9af9eaaa
FB		 244#define __NR__llseek __NR_lseek
245#endif
246
a29e5ba2
JH		 247/* Newer kernel ports have llseek() instead of _llseek() */
248#if defined(TARGET_NR_llseek) && !defined(TARGET_NR__llseek)
249#define TARGET_NR__llseek TARGET_NR_llseek
250#endif
251
72f03900 252#ifdef __NR_gettid
31e31b8a 253_syscall0(int, gettid)
72f03900 254#else
0da46a6e
TS		 255/* This is a replacement for the host gettid() and must return a host
256 errno. */
72f03900
FB		 257static int gettid(void) {
258 return -ENOSYS;
259}
260#endif
2b3f64cb
PM		 261
262/* For the 64-bit guest on 32-bit host case we must emulate
263 * getdents using getdents64, because otherwise the host
264 * might hand us back more dirent records than we can fit
265 * into the guest buffer after structure format conversion.
266 * Otherwise we emulate getdents with getdents if the host has it.
267 */
268#if defined(__NR_getdents) && HOST_LONG_BITS >= TARGET_ABI_BITS
269#define EMULATE_GETDENTS_WITH_GETDENTS
270#endif
271
272#if defined(TARGET_NR_getdents) && defined(EMULATE_GETDENTS_WITH_GETDENTS)
3b3f24ad 273_syscall3(int, sys_getdents, uint, fd, struct linux_dirent *, dirp, uint, count);
3307e236 274#endif
2b3f64cb
PM		 275#if (defined(TARGET_NR_getdents) && \
276 !defined(EMULATE_GETDENTS_WITH_GETDENTS)) || \
3307e236 277 (defined(TARGET_NR_getdents64) && defined(__NR_getdents64))
3b3f24ad
AJ		 278_syscall3(int, sys_getdents64, uint, fd, struct linux_dirent64 *, dirp, uint, count);
279#endif
d35b261c 280#if defined(TARGET_NR__llseek) && defined(__NR_llseek)
3b3f24ad
AJ		 281_syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo,
282 loff_t *, res, uint, wh);
283#endif
c1a402a7 284_syscall3(int, sys_rt_sigqueueinfo, pid_t, pid, int, sig, siginfo_t *, uinfo)
cf8b8bfc
MS		 285_syscall4(int, sys_rt_tgsigqueueinfo, pid_t, pid, pid_t, tid, int, sig,
286 siginfo_t *, uinfo)
3b3f24ad 287_syscall3(int,sys_syslog,int,type,char*,bufp,int,len)
3b3f24ad
AJ		 288#ifdef __NR_exit_group
289_syscall1(int,exit_group,int,error_code)
290#endif
291#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
292_syscall1(int,set_tid_address,int *,tidptr)
293#endif
3b3f24ad
AJ		 294#if defined(TARGET_NR_futex) && defined(__NR_futex)
295_syscall6(int,sys_futex,int *,uaddr,int,op,int,val,
296 const struct timespec *,timeout,int *,uaddr2,int,val3)
297#endif
737de1d1
MF		 298#define __NR_sys_sched_getaffinity __NR_sched_getaffinity
299_syscall3(int, sys_sched_getaffinity, pid_t, pid, unsigned int, len,
300 unsigned long *, user_mask_ptr);
301#define __NR_sys_sched_setaffinity __NR_sched_setaffinity
302_syscall3(int, sys_sched_setaffinity, pid_t, pid, unsigned int, len,
303 unsigned long *, user_mask_ptr);
b827c3ed
ST		 304#define __NR_sys_getcpu __NR_getcpu
305_syscall3(int, sys_getcpu, unsigned *, cpu, unsigned *, node, void *, tcache);
0f6b4d21
AG		 306_syscall4(int, reboot, int, magic1, int, magic2, unsigned int, cmd,
307 void *, arg);
e0eb210e
PM		 308_syscall2(int, capget, struct __user_cap_header_struct *, header,
309 struct __user_cap_data_struct *, data);
310_syscall2(int, capset, struct __user_cap_header_struct *, header,
311 struct __user_cap_data_struct *, data);
ab31cda3
PB		 312#if defined(TARGET_NR_ioprio_get) && defined(__NR_ioprio_get)
313_syscall2(int, ioprio_get, int, which, int, who)
314#endif
315#if defined(TARGET_NR_ioprio_set) && defined(__NR_ioprio_set)
316_syscall3(int, ioprio_set, int, which, int, who, int, ioprio)
317#endif
f894efd1
LV		 318#if defined(TARGET_NR_getrandom) && defined(__NR_getrandom)
319_syscall3(int, getrandom, void *, buf, size_t, buflen, unsigned int, flags)
320#endif
3b3f24ad 321
2f14788c
LV		 322#if defined(TARGET_NR_kcmp) && defined(__NR_kcmp)
323_syscall5(int, kcmp, pid_t, pid1, pid_t, pid2, int, type,
324 unsigned long, idx1, unsigned long, idx2)
325#endif
326
3b3f24ad
AJ		 327static bitmask_transtbl fcntl_flags_tbl[] = {
328 { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, },
329 { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, },
330 { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, },
331 { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, },
332 { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, },
333 { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, },
334 { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, },
335 { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, },
afc8763f 336 { TARGET_O_SYNC, TARGET_O_DSYNC, O_SYNC, O_DSYNC, },
3b3f24ad
AJ		 337 { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, },
338 { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, },
339 { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
340 { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, },
3b3f24ad
AJ		 341#if defined(O_DIRECT)
342 { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, },
afc8763f
RH		 343#endif
344#if defined(O_NOATIME)
345 { TARGET_O_NOATIME, TARGET_O_NOATIME, O_NOATIME, O_NOATIME },
346#endif
347#if defined(O_CLOEXEC)
348 { TARGET_O_CLOEXEC, TARGET_O_CLOEXEC, O_CLOEXEC, O_CLOEXEC },
349#endif
350#if defined(O_PATH)
351 { TARGET_O_PATH, TARGET_O_PATH, O_PATH, O_PATH },
5f9cee46
RV		 352#endif
353#if defined(O_TMPFILE)
354 { TARGET_O_TMPFILE, TARGET_O_TMPFILE, O_TMPFILE, O_TMPFILE },
afc8763f
RH		 355#endif
356 /* Don't terminate the list prematurely on 64-bit host+guest. */
357#if TARGET_O_LARGEFILE != 0 || O_LARGEFILE != 0
358 { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
3b3f24ad
AJ		 359#endif
360 { 0, 0, 0, 0 }
361};
362
3b3f24ad
AJ		 363static int sys_getcwd1(char *buf, size_t size)
364{
365 if (getcwd(buf, size) == NULL) {
366 /* getcwd() sets errno */
367 return (-1);
368 }
aaf4ad39 369 return strlen(buf)+1;
3b3f24ad
AJ		 370}
371
1acae9f2 372#ifdef TARGET_NR_utimensat
700fa58e 373#if defined(__NR_utimensat)
1acae9f2 374#define __NR_sys_utimensat __NR_utimensat
9007f0ef
TS		 375_syscall4(int,sys_utimensat,int,dirfd,const char *,pathname,
376 const struct timespec *,tsp,int,flags)
1acae9f2
PM		 377#else
378static int sys_utimensat(int dirfd, const char *pathname,
379 const struct timespec times[2], int flags)
380{
381 errno = ENOSYS;
382 return -1;
383}
9007f0ef 384#endif
1acae9f2 385#endif /* TARGET_NR_utimensat */
3b3f24ad 386
95d0307c
AS		 387#ifdef TARGET_NR_renameat2
388#if defined(__NR_renameat2)
389#define __NR_sys_renameat2 __NR_renameat2
390_syscall5(int, sys_renameat2, int, oldfd, const char *, old, int, newfd,
391 const char *, new, unsigned int, flags)
392#else
393static int sys_renameat2(int oldfd, const char *old,
394 int newfd, const char *new, int flags)
395{
396 if (flags == 0) {
397 return renameat(oldfd, old, newfd, new);
398 }
399 errno = ENOSYS;
400 return -1;
401}
402#endif
403#endif /* TARGET_NR_renameat2 */
404
3b3f24ad 405#ifdef CONFIG_INOTIFY
8690e420 406#include <sys/inotify.h>
3b3f24ad 407
39b59763 408#if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
3b3f24ad
AJ		 409static int sys_inotify_init(void)
410{
411 return (inotify_init());
412}
39b59763
AJ		 413#endif
414#if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
3b3f24ad
AJ		 415static int sys_inotify_add_watch(int fd,const char *pathname, int32_t mask)
416{
417 return (inotify_add_watch(fd, pathname, mask));
418}
39b59763
AJ		 419#endif
420#if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
3b3f24ad
AJ		 421static int sys_inotify_rm_watch(int fd, int32_t wd)
422{
8690e420 423 return (inotify_rm_watch(fd, wd));
3b3f24ad 424}
bd0c5661 425#endif
c05c7a73
RV		 426#ifdef CONFIG_INOTIFY1
427#if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1)
428static int sys_inotify_init1(int flags)
429{
430 return (inotify_init1(flags));
431}
432#endif
433#endif
3b3f24ad
AJ		 434#else
435/* Userspace can usually survive runtime without inotify */
436#undef TARGET_NR_inotify_init
c05c7a73 437#undef TARGET_NR_inotify_init1
3b3f24ad
AJ		 438#undef TARGET_NR_inotify_add_watch
439#undef TARGET_NR_inotify_rm_watch
440#endif /* CONFIG_INOTIFY */
441
163a05a8
PM		 442#if defined(TARGET_NR_prlimit64)
443#ifndef __NR_prlimit64
444# define __NR_prlimit64 -1
445#endif
446#define __NR_sys_prlimit64 __NR_prlimit64
447/* The glibc rlimit structure may not be that used by the underlying syscall */
448struct host_rlimit64 {
449 uint64_t rlim_cur;
450 uint64_t rlim_max;
451};
452_syscall4(int, sys_prlimit64, pid_t, pid, int, resource,
453 const struct host_rlimit64 *, new_limit,
454 struct host_rlimit64 *, old_limit)
455#endif
456
f4f1e10a
ECL		 457
458#if defined(TARGET_NR_timer_create)
459/* Maxiumum of 32 active POSIX timers allowed at any one time. */
460static timer_t g_posix_timers[32] = { 0, } ;
461
462static inline int next_free_host_timer(void)
463{
464 int k ;
465 /* FIXME: Does finding the next free slot require a lock? */
466 for (k = 0; k < ARRAY_SIZE(g_posix_timers); k++) {
467 if (g_posix_timers[k] == 0) {
468 g_posix_timers[k] = (timer_t) 1;
469 return k;
470 }
471 }
472 return -1;
473}
474#endif
475
48e515d4 476/* ARM EABI and MIPS expect 64bit types aligned even on pairs or registers */
4a1def4e 477#ifdef TARGET_ARM
8bf8e9df
JC		 478static inline int regpairs_aligned(void *cpu_env, int num)
479{
48e515d4
RV		 480 return ((((CPUARMState *)cpu_env)->eabi) == 1) ;
481}
d7779acb 482#elif defined(TARGET_MIPS) && (TARGET_ABI_BITS == 32)
8bf8e9df 483static inline int regpairs_aligned(void *cpu_env, int num) { return 1; }
4a1def4e
AG		 484#elif defined(TARGET_PPC) && !defined(TARGET_PPC64)
485/* SysV AVI for PPC32 expects 64bit parameters to be passed on odd/even pairs
486 * of registers which translates to the same as ARM/MIPS, because we start with
487 * r3 as arg1 */
8bf8e9df
JC		 488static inline int regpairs_aligned(void *cpu_env, int num) { return 1; }
489#elif defined(TARGET_SH4)
490/* SH4 doesn't align register pairs, except for p{read,write}64 */
491static inline int regpairs_aligned(void *cpu_env, int num)
492{
493 switch (num) {
494 case TARGET_NR_pread64:
495 case TARGET_NR_pwrite64:
496 return 1;
497
498 default:
499 return 0;
500 }
501}
ba7651fb
MF		 502#elif defined(TARGET_XTENSA)
503static inline int regpairs_aligned(void *cpu_env, int num) { return 1; }
48e515d4 504#else
8bf8e9df 505static inline int regpairs_aligned(void *cpu_env, int num) { return 0; }
48e515d4
RV		 506#endif
507
b92c47c1
TS		 508#define ERRNO_TABLE_SIZE 1200
509
510/* target_to_host_errno_table[] is initialized from
511 * host_to_target_errno_table[] in syscall_init(). */
512static uint16_t target_to_host_errno_table[ERRNO_TABLE_SIZE] = {
513};
514
637947f1 515/*
fe8f096b 516 * This list is the union of errno values overridden in asm-<arch>/errno.h
637947f1
TS		 517 * minus the errnos that are not actually generic to all archs.
518 */
b92c47c1 519static uint16_t host_to_target_errno_table[ERRNO_TABLE_SIZE] = {
08703b9f 520 [EAGAIN] = TARGET_EAGAIN,
637947f1
TS		 521 [EIDRM] = TARGET_EIDRM,
522 [ECHRNG] = TARGET_ECHRNG,
523 [EL2NSYNC] = TARGET_EL2NSYNC,
524 [EL3HLT] = TARGET_EL3HLT,
525 [EL3RST] = TARGET_EL3RST,
526 [ELNRNG] = TARGET_ELNRNG,
527 [EUNATCH] = TARGET_EUNATCH,
528 [ENOCSI] = TARGET_ENOCSI,
529 [EL2HLT] = TARGET_EL2HLT,
530 [EDEADLK] = TARGET_EDEADLK,
531 [ENOLCK] = TARGET_ENOLCK,
532 [EBADE] = TARGET_EBADE,
533 [EBADR] = TARGET_EBADR,
534 [EXFULL] = TARGET_EXFULL,
535 [ENOANO] = TARGET_ENOANO,
536 [EBADRQC] = TARGET_EBADRQC,
537 [EBADSLT] = TARGET_EBADSLT,
538 [EBFONT] = TARGET_EBFONT,
539 [ENOSTR] = TARGET_ENOSTR,
540 [ENODATA] = TARGET_ENODATA,
541 [ETIME] = TARGET_ETIME,
542 [ENOSR] = TARGET_ENOSR,
543 [ENONET] = TARGET_ENONET,
544 [ENOPKG] = TARGET_ENOPKG,
545 [EREMOTE] = TARGET_EREMOTE,
546 [ENOLINK] = TARGET_ENOLINK,
547 [EADV] = TARGET_EADV,
548 [ESRMNT] = TARGET_ESRMNT,
549 [ECOMM] = TARGET_ECOMM,
550 [EPROTO] = TARGET_EPROTO,
551 [EDOTDOT] = TARGET_EDOTDOT,
552 [EMULTIHOP] = TARGET_EMULTIHOP,
553 [EBADMSG] = TARGET_EBADMSG,
554 [ENAMETOOLONG] = TARGET_ENAMETOOLONG,
555 [EOVERFLOW] = TARGET_EOVERFLOW,
556 [ENOTUNIQ] = TARGET_ENOTUNIQ,
557 [EBADFD] = TARGET_EBADFD,
558 [EREMCHG] = TARGET_EREMCHG,
559 [ELIBACC] = TARGET_ELIBACC,
560 [ELIBBAD] = TARGET_ELIBBAD,
561 [ELIBSCN] = TARGET_ELIBSCN,
562 [ELIBMAX] = TARGET_ELIBMAX,
563 [ELIBEXEC] = TARGET_ELIBEXEC,
564 [EILSEQ] = TARGET_EILSEQ,
565 [ENOSYS] = TARGET_ENOSYS,
566 [ELOOP] = TARGET_ELOOP,
567 [ERESTART] = TARGET_ERESTART,
568 [ESTRPIPE] = TARGET_ESTRPIPE,
569 [ENOTEMPTY] = TARGET_ENOTEMPTY,
570 [EUSERS] = TARGET_EUSERS,
571 [ENOTSOCK] = TARGET_ENOTSOCK,
572 [EDESTADDRREQ] = TARGET_EDESTADDRREQ,
573 [EMSGSIZE] = TARGET_EMSGSIZE,
574 [EPROTOTYPE] = TARGET_EPROTOTYPE,
575 [ENOPROTOOPT] = TARGET_ENOPROTOOPT,
576 [EPROTONOSUPPORT] = TARGET_EPROTONOSUPPORT,
577 [ESOCKTNOSUPPORT] = TARGET_ESOCKTNOSUPPORT,
578 [EOPNOTSUPP] = TARGET_EOPNOTSUPP,
579 [EPFNOSUPPORT] = TARGET_EPFNOSUPPORT,
580 [EAFNOSUPPORT] = TARGET_EAFNOSUPPORT,
581 [EADDRINUSE] = TARGET_EADDRINUSE,
582 [EADDRNOTAVAIL] = TARGET_EADDRNOTAVAIL,
583 [ENETDOWN] = TARGET_ENETDOWN,
584 [ENETUNREACH] = TARGET_ENETUNREACH,
585 [ENETRESET] = TARGET_ENETRESET,
586 [ECONNABORTED] = TARGET_ECONNABORTED,
587 [ECONNRESET] = TARGET_ECONNRESET,
588 [ENOBUFS] = TARGET_ENOBUFS,
589 [EISCONN] = TARGET_EISCONN,
590 [ENOTCONN] = TARGET_ENOTCONN,
591 [EUCLEAN] = TARGET_EUCLEAN,
592 [ENOTNAM] = TARGET_ENOTNAM,
593 [ENAVAIL] = TARGET_ENAVAIL,
594 [EISNAM] = TARGET_EISNAM,
595 [EREMOTEIO] = TARGET_EREMOTEIO,
0444a3b7 596 [EDQUOT] = TARGET_EDQUOT,
637947f1
TS		 597 [ESHUTDOWN] = TARGET_ESHUTDOWN,
598 [ETOOMANYREFS] = TARGET_ETOOMANYREFS,
599 [ETIMEDOUT] = TARGET_ETIMEDOUT,
600 [ECONNREFUSED] = TARGET_ECONNREFUSED,
601 [EHOSTDOWN] = TARGET_EHOSTDOWN,
602 [EHOSTUNREACH] = TARGET_EHOSTUNREACH,
603 [EALREADY] = TARGET_EALREADY,
604 [EINPROGRESS] = TARGET_EINPROGRESS,
605 [ESTALE] = TARGET_ESTALE,
606 [ECANCELED] = TARGET_ECANCELED,
607 [ENOMEDIUM] = TARGET_ENOMEDIUM,
608 [EMEDIUMTYPE] = TARGET_EMEDIUMTYPE,
b7fe5db7 609#ifdef ENOKEY
637947f1 610 [ENOKEY] = TARGET_ENOKEY,
b7fe5db7
TS		 611#endif
612#ifdef EKEYEXPIRED
637947f1 613 [EKEYEXPIRED] = TARGET_EKEYEXPIRED,
b7fe5db7
TS		 614#endif
615#ifdef EKEYREVOKED
637947f1 616 [EKEYREVOKED] = TARGET_EKEYREVOKED,
b7fe5db7
TS		 617#endif
618#ifdef EKEYREJECTED
637947f1 619 [EKEYREJECTED] = TARGET_EKEYREJECTED,
b7fe5db7
TS		 620#endif
621#ifdef EOWNERDEAD
637947f1 622 [EOWNERDEAD] = TARGET_EOWNERDEAD,
b7fe5db7
TS		 623#endif
624#ifdef ENOTRECOVERABLE
637947f1 625 [ENOTRECOVERABLE] = TARGET_ENOTRECOVERABLE,
b7fe5db7 626#endif
da39db63
AM		 627#ifdef ENOMSG
628 [ENOMSG] = TARGET_ENOMSG,
629#endif
fe8ed7d5
RH		 630#ifdef ERKFILL
631 [ERFKILL] = TARGET_ERFKILL,
632#endif
633#ifdef EHWPOISON
634 [EHWPOISON] = TARGET_EHWPOISON,
635#endif
b92c47c1 636};
637947f1
TS		 637
638static inline int host_to_target_errno(int err)
639{
2466119c
TB		 640 if (err >= 0 && err < ERRNO_TABLE_SIZE &&
641 host_to_target_errno_table[err]) {
637947f1 642 return host_to_target_errno_table[err];
2466119c 643 }
637947f1
TS		 644 return err;
645}
646
b92c47c1
TS		 647static inline int target_to_host_errno(int err)
648{
2466119c
TB		 649 if (err >= 0 && err < ERRNO_TABLE_SIZE &&
650 target_to_host_errno_table[err]) {
b92c47c1 651 return target_to_host_errno_table[err];
2466119c 652 }
b92c47c1
TS		 653 return err;
654}
655
992f48a0 656static inline abi_long get_errno(abi_long ret)
31e31b8a
FB		 657{
658 if (ret == -1)
637947f1 659 return -host_to_target_errno(errno);
31e31b8a
FB		 660 else
661 return ret;
662}
663
7dcdaeaf 664const char *target_strerror(int err)
b92c47c1 665{
da2a34f7
PM		 666 if (err == TARGET_ERESTARTSYS) {
667 return "To be restarted";
668 }
669 if (err == TARGET_QEMU_ESIGRETURN) {
670 return "Successful exit from sigreturn";
671 }
672
962b289e
AG		 673 if ((err >= ERRNO_TABLE_SIZE) || (err < 0)) {
674 return NULL;
675 }
b92c47c1
TS		 676 return strerror(target_to_host_errno(err));
677}
678
4d330cee
TB		 679#define safe_syscall0(type, name) \
680static type safe_##name(void) \
681{ \
682 return safe_syscall(__NR_##name); \
683}
684
685#define safe_syscall1(type, name, type1, arg1) \
686static type safe_##name(type1 arg1) \
687{ \
688 return safe_syscall(__NR_##name, arg1); \
689}
690
691#define safe_syscall2(type, name, type1, arg1, type2, arg2) \
692static type safe_##name(type1 arg1, type2 arg2) \
693{ \
694 return safe_syscall(__NR_##name, arg1, arg2); \
695}
696
697#define safe_syscall3(type, name, type1, arg1, type2, arg2, type3, arg3) \
698static type safe_##name(type1 arg1, type2 arg2, type3 arg3) \
699{ \
700 return safe_syscall(__NR_##name, arg1, arg2, arg3); \
701}
702
703#define safe_syscall4(type, name, type1, arg1, type2, arg2, type3, arg3, \
704 type4, arg4) \
705static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
706{ \
707 return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4); \
708}
709
710#define safe_syscall5(type, name, type1, arg1, type2, arg2, type3, arg3, \
711 type4, arg4, type5, arg5) \
712static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \
713 type5 arg5) \
714{ \
715 return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \
716}
717
718#define safe_syscall6(type, name, type1, arg1, type2, arg2, type3, arg3, \
719 type4, arg4, type5, arg5, type6, arg6) \
720static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \
721 type5 arg5, type6 arg6) \
722{ \
723 return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
724}
725
50afd02b
TB		 726safe_syscall3(ssize_t, read, int, fd, void *, buff, size_t, count)
727safe_syscall3(ssize_t, write, int, fd, const void *, buff, size_t, count)
c10a0738
TB		 728safe_syscall4(int, openat, int, dirfd, const char *, pathname, \
729 int, flags, mode_t, mode)
4af80a37
TB		 730safe_syscall4(pid_t, wait4, pid_t, pid, int *, status, int, options, \
731 struct rusage *, rusage)
732safe_syscall5(int, waitid, idtype_t, idtype, id_t, id, siginfo_t *, infop, \
733 int, options, struct rusage *, rusage)
ffdcbe22 734safe_syscall3(int, execve, const char *, filename, char **, argv, char **, envp)
6df9d38d
PM		 735safe_syscall6(int, pselect6, int, nfds, fd_set *, readfds, fd_set *, writefds, \
736 fd_set *, exceptfds, struct timespec *, timeout, void *, sig)
a6130237
PM		 737safe_syscall5(int, ppoll, struct pollfd *, ufds, unsigned int, nfds,
738 struct timespec *, tsp, const sigset_t *, sigmask,
739 size_t, sigsetsize)
227f0214
PM		 740safe_syscall6(int, epoll_pwait, int, epfd, struct epoll_event *, events,
741 int, maxevents, int, timeout, const sigset_t *, sigmask,
742 size_t, sigsetsize)
d509eeb1
PM		 743safe_syscall6(int,futex,int *,uaddr,int,op,int,val, \
744 const struct timespec *,timeout,int *,uaddr2,int,val3)
2fe4fba1 745safe_syscall2(int, rt_sigsuspend, sigset_t *, newset, size_t, sigsetsize)
bef653d9
PM		 746safe_syscall2(int, kill, pid_t, pid, int, sig)
747safe_syscall2(int, tkill, int, tid, int, sig)
748safe_syscall3(int, tgkill, int, tgid, int, pid, int, sig)
918c03ed
PM		 749safe_syscall3(ssize_t, readv, int, fd, const struct iovec *, iov, int, iovcnt)
750safe_syscall3(ssize_t, writev, int, fd, const struct iovec *, iov, int, iovcnt)
0f26386c
DJ		 751safe_syscall5(ssize_t, preadv, int, fd, const struct iovec *, iov, int, iovcnt,
752 unsigned long, pos_l, unsigned long, pos_h)
f8d00fba
DJ		 753safe_syscall5(ssize_t, pwritev, int, fd, const struct iovec *, iov, int, iovcnt,
754 unsigned long, pos_l, unsigned long, pos_h)
2a3c7619
PM		 755safe_syscall3(int, connect, int, fd, const struct sockaddr *, addr,
756 socklen_t, addrlen)
66687530
PM		 757safe_syscall6(ssize_t, sendto, int, fd, const void *, buf, size_t, len,
758 int, flags, const struct sockaddr *, addr, socklen_t, addrlen)
759safe_syscall6(ssize_t, recvfrom, int, fd, void *, buf, size_t, len,
760 int, flags, struct sockaddr *, addr, socklen_t *, addrlen)
761safe_syscall3(ssize_t, sendmsg, int, fd, const struct msghdr *, msg, int, flags)
762safe_syscall3(ssize_t, recvmsg, int, fd, struct msghdr *, msg, int, flags)
2a845989 763safe_syscall2(int, flock, int, fd, int, operation)
b3f82330
PM		 764safe_syscall4(int, rt_sigtimedwait, const sigset_t *, these, siginfo_t *, uinfo,
765 const struct timespec *, uts, size_t, sigsetsize)
ff6dc130
PM		 766safe_syscall4(int, accept4, int, fd, struct sockaddr *, addr, socklen_t *, len,
767 int, flags)
9e518226
PM		 768safe_syscall2(int, nanosleep, const struct timespec *, req,
769 struct timespec *, rem)
770#ifdef TARGET_NR_clock_nanosleep
771safe_syscall4(int, clock_nanosleep, const clockid_t, clock, int, flags,
772 const struct timespec *, req, struct timespec *, rem)
773#endif
89f9fe44
PM		 774#ifdef __NR_msgsnd
775safe_syscall4(int, msgsnd, int, msgid, const void *, msgp, size_t, sz,
776 int, flags)
777safe_syscall5(int, msgrcv, int, msgid, void *, msgp, size_t, sz,
778 long, msgtype, int, flags)
ffb7ee79
PM		 779safe_syscall4(int, semtimedop, int, semid, struct sembuf *, tsops,
780 unsigned, nsops, const struct timespec *, timeout)
89f9fe44
PM		 781#else
782/* This host kernel architecture uses a single ipc syscall; fake up
783 * wrappers for the sub-operations to hide this implementation detail.
784 * Annoyingly we can't include linux/ipc.h to get the constant definitions
785 * for the call parameter because some structs in there conflict with the
786 * sys/ipc.h ones. So we just define them here, and rely on them being
787 * the same for all host architectures.
788 */
ffb7ee79 789#define Q_SEMTIMEDOP 4
89f9fe44
PM		 790#define Q_MSGSND 11
791#define Q_MSGRCV 12
792#define Q_IPCCALL(VERSION, OP) ((VERSION) << 16 | (OP))
793
794safe_syscall6(int, ipc, int, call, long, first, long, second, long, third,
795 void *, ptr, long, fifth)
796static int safe_msgsnd(int msgid, const void *msgp, size_t sz, int flags)
797{
798 return safe_ipc(Q_IPCCALL(0, Q_MSGSND), msgid, sz, flags, (void *)msgp, 0);
799}
800static int safe_msgrcv(int msgid, void *msgp, size_t sz, long type, int flags)
801{
802 return safe_ipc(Q_IPCCALL(1, Q_MSGRCV), msgid, sz, flags, msgp, type);
803}
ffb7ee79
PM		 804static int safe_semtimedop(int semid, struct sembuf *tsops, unsigned nsops,
805 const struct timespec *timeout)
806{
807 return safe_ipc(Q_IPCCALL(0, Q_SEMTIMEDOP), semid, nsops, 0, tsops,
808 (long)timeout);
809}
89f9fe44 810#endif
d40ecd66
PM		 811#if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
812safe_syscall5(int, mq_timedsend, int, mqdes, const char *, msg_ptr,
813 size_t, len, unsigned, prio, const struct timespec *, timeout)
814safe_syscall5(int, mq_timedreceive, int, mqdes, char *, msg_ptr,
815 size_t, len, unsigned *, prio, const struct timespec *, timeout)
816#endif
49ca6f3e
PM		 817/* We do ioctl like this rather than via safe_syscall3 to preserve the
818 * "third argument might be integer or pointer or not present" behaviour of
819 * the libc function.
820 */
821#define safe_ioctl(...) safe_syscall(__NR_ioctl, __VA_ARGS__)
435da5e7
PM		 822/* Similarly for fcntl. Note that callers must always:
823 * pass the F_GETLK64 etc constants rather than the unsuffixed F_GETLK
824 * use the flock64 struct rather than unsuffixed flock
825 * This will then work and use a 64-bit offset for both 32-bit and 64-bit hosts.
826 */
827#ifdef __NR_fcntl64
828#define safe_fcntl(...) safe_syscall(__NR_fcntl64, __VA_ARGS__)
829#else
830#define safe_fcntl(...) safe_syscall(__NR_fcntl, __VA_ARGS__)
831#endif
50afd02b 832
8289d112
PB		 833static inline int host_to_target_sock_type(int host_type)
834{
835 int target_type;
836
837 switch (host_type & 0xf /* SOCK_TYPE_MASK */) {
838 case SOCK_DGRAM:
839 target_type = TARGET_SOCK_DGRAM;
840 break;
841 case SOCK_STREAM:
842 target_type = TARGET_SOCK_STREAM;
843 break;
844 default:
845 target_type = host_type & 0xf /* SOCK_TYPE_MASK */;
846 break;
847 }
848
849#if defined(SOCK_CLOEXEC)
850 if (host_type & SOCK_CLOEXEC) {
851 target_type |= TARGET_SOCK_CLOEXEC;
852 }
853#endif
854
855#if defined(SOCK_NONBLOCK)
856 if (host_type & SOCK_NONBLOCK) {
857 target_type |= TARGET_SOCK_NONBLOCK;
858 }
859#endif
860
861 return target_type;
862}
863
992f48a0
BS		 864static abi_ulong target_brk;
865static abi_ulong target_original_brk;
4d1de87c 866static abi_ulong brk_page;
31e31b8a 867
992f48a0 868void target_set_brk(abi_ulong new_brk)
31e31b8a 869{
4c1de73d 870 target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk);
4d1de87c 871 brk_page = HOST_PAGE_ALIGN(target_brk);
31e31b8a
FB		 872}
873
4d1de87c
CV		 874//#define DEBUGF_BRK(message, args...) do { fprintf(stderr, (message), ## args); } while (0)
875#define DEBUGF_BRK(message, args...)
876
0da46a6e 877/* do_brk() must return target values and target errnos. */
992f48a0 878abi_long do_brk(abi_ulong new_brk)
31e31b8a 879{
992f48a0 880 abi_long mapped_addr;
ef4330c2 881 abi_ulong new_alloc_size;
31e31b8a 882
3a0c6c4a 883 DEBUGF_BRK("do_brk(" TARGET_ABI_FMT_lx ") -> ", new_brk);
4d1de87c
CV		 884
885 if (!new_brk) {
3a0c6c4a 886 DEBUGF_BRK(TARGET_ABI_FMT_lx " (!new_brk)\n", target_brk);
53a5960a 887 return target_brk;
4d1de87c
CV		 888 }
889 if (new_brk < target_original_brk) {
3a0c6c4a
PB		 890 DEBUGF_BRK(TARGET_ABI_FMT_lx " (new_brk < target_original_brk)\n",
891 target_brk);
7ab240ad 892 return target_brk;
4d1de87c 893 }
3b46e624 894
4d1de87c
CV		 895 /* If the new brk is less than the highest page reserved to the
896 * target heap allocation, set it and we're almost done... */
897 if (new_brk <= brk_page) {
898 /* Heap contents are initialized to zero, as for anonymous
899 * mapped pages. */
900 if (new_brk > target_brk) {
901 memset(g2h(target_brk), 0, new_brk - target_brk);
902 }
31e31b8a 903 target_brk = new_brk;
3a0c6c4a 904 DEBUGF_BRK(TARGET_ABI_FMT_lx " (new_brk <= brk_page)\n", target_brk);
72e21db7 905 return target_brk;
31e31b8a
FB		 906 }
907
00faf08c
PM		 908 /* We need to allocate more memory after the brk... Note that
909 * we don't use MAP_FIXED because that will map over the top of
910 * any existing mapping (like the one with the host libc or qemu
911 * itself); instead we treat "mapped but at wrong address" as
912 * a failure and unmap again.
913 */
4d1de87c 914 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page);
5fafdf24 915 mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size,
54936004 916 PROT_READ|PROT_WRITE,
00faf08c
PM		 917 MAP_ANON|MAP_PRIVATE, 0, 0));
918
919 if (mapped_addr == brk_page) {
70afc343
CV		 920 /* Heap contents are initialized to zero, as for anonymous
921 * mapped pages. Technically the new pages are already
922 * initialized to zero since they *are* anonymous mapped
923 * pages, however we have to take care with the contents that
924 * come from the remaining part of the previous page: it may
925 * contains garbage data due to a previous heap usage (grown
926 * then shrunken). */
927 memset(g2h(target_brk), 0, brk_page - target_brk);
928
00faf08c 929 target_brk = new_brk;
4d1de87c 930 brk_page = HOST_PAGE_ALIGN(target_brk);
3a0c6c4a
PB		 931 DEBUGF_BRK(TARGET_ABI_FMT_lx " (mapped_addr == brk_page)\n",
932 target_brk);
00faf08c
PM		 933 return target_brk;
934 } else if (mapped_addr != -1) {
935 /* Mapped but at wrong address, meaning there wasn't actually
936 * enough space for this brk.
937 */
938 target_munmap(mapped_addr, new_alloc_size);
939 mapped_addr = -1;
3a0c6c4a 940 DEBUGF_BRK(TARGET_ABI_FMT_lx " (mapped_addr != -1)\n", target_brk);
4d1de87c
CV		 941 }
942 else {
3a0c6c4a 943 DEBUGF_BRK(TARGET_ABI_FMT_lx " (otherwise)\n", target_brk);
00faf08c 944 }
7ab240ad 945
7dd46c02
RH		 946#if defined(TARGET_ALPHA)
947 /* We (partially) emulate OSF/1 on Alpha, which requires we
948 return a proper errno, not an unchanged brk value. */
00faf08c 949 return -TARGET_ENOMEM;
7dd46c02 950#endif
00faf08c 951 /* For everything else, return the previous break. */
7ab240ad 952 return target_brk;
31e31b8a
FB		 953}
954
26edcf41
TS		 955static inline abi_long copy_from_user_fdset(fd_set *fds,
956 abi_ulong target_fds_addr,
957 int n)
31e31b8a 958{
26edcf41
TS		 959 int i, nw, j, k;
960 abi_ulong b, *target_fds;
961
b1b2db29 962 nw = DIV_ROUND_UP(n, TARGET_ABI_BITS);
26edcf41
TS		 963 if (!(target_fds = lock_user(VERIFY_READ,
964 target_fds_addr,
965 sizeof(abi_ulong) * nw,
966 1)))
967 return -TARGET_EFAULT;
968
969 FD_ZERO(fds);
970 k = 0;
971 for (i = 0; i < nw; i++) {
972 /* grab the abi_ulong */
973 __get_user(b, &target_fds[i]);
974 for (j = 0; j < TARGET_ABI_BITS; j++) {
975 /* check the bit inside the abi_ulong */
976 if ((b >> j) & 1)
977 FD_SET(k, fds);
978 k++;
31e31b8a 979 }
31e31b8a 980 }
26edcf41
TS		 981
982 unlock_user(target_fds, target_fds_addr, 0);
983
984 return 0;
31e31b8a
FB		 985}
986
055e0906
MF		 987static inline abi_ulong copy_from_user_fdset_ptr(fd_set *fds, fd_set **fds_ptr,
988 abi_ulong target_fds_addr,
989 int n)
990{
991 if (target_fds_addr) {
992 if (copy_from_user_fdset(fds, target_fds_addr, n))
993 return -TARGET_EFAULT;
994 *fds_ptr = fds;
995 } else {
996 *fds_ptr = NULL;
997 }
998 return 0;
999}
1000
26edcf41
TS		 1001static inline abi_long copy_to_user_fdset(abi_ulong target_fds_addr,
1002 const fd_set *fds,
1003 int n)
31e31b8a 1004{
31e31b8a 1005 int i, nw, j, k;
992f48a0 1006 abi_long v;
26edcf41 1007 abi_ulong *target_fds;
31e31b8a 1008
b1b2db29 1009 nw = DIV_ROUND_UP(n, TARGET_ABI_BITS);
26edcf41
TS		 1010 if (!(target_fds = lock_user(VERIFY_WRITE,
1011 target_fds_addr,
1012 sizeof(abi_ulong) * nw,
1013 0)))
1014 return -TARGET_EFAULT;
1015
1016 k = 0;
1017 for (i = 0; i < nw; i++) {
1018 v = 0;
1019 for (j = 0; j < TARGET_ABI_BITS; j++) {
9ab709be 1020 v |= ((abi_ulong)(FD_ISSET(k, fds) != 0) << j);
26edcf41 1021 k++;
31e31b8a 1022 }
26edcf41 1023 __put_user(v, &target_fds[i]);
31e31b8a 1024 }
26edcf41
TS		 1025
1026 unlock_user(target_fds, target_fds_addr, sizeof(abi_ulong) * nw);
1027
1028 return 0;
31e31b8a
FB		 1029}
1030
c596ed17
FB		 1031#if defined(__alpha__)
1032#define HOST_HZ 1024
1033#else
1034#define HOST_HZ 100
1035#endif
1036
992f48a0 1037static inline abi_long host_to_target_clock_t(long ticks)
c596ed17
FB		 1038{
1039#if HOST_HZ == TARGET_HZ
1040 return ticks;
1041#else
1042 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
1043#endif
1044}
1045
579a97f7
FB		 1046static inline abi_long host_to_target_rusage(abi_ulong target_addr,
1047 const struct rusage *rusage)
b409186b 1048{
53a5960a
PB		 1049 struct target_rusage *target_rusage;
1050
579a97f7
FB		 1051 if (!lock_user_struct(VERIFY_WRITE, target_rusage, target_addr, 0))
1052 return -TARGET_EFAULT;
cbb21eed
MB		 1053 target_rusage->ru_utime.tv_sec = tswapal(rusage->ru_utime.tv_sec);
1054 target_rusage->ru_utime.tv_usec = tswapal(rusage->ru_utime.tv_usec);
1055 target_rusage->ru_stime.tv_sec = tswapal(rusage->ru_stime.tv_sec);
1056 target_rusage->ru_stime.tv_usec = tswapal(rusage->ru_stime.tv_usec);
1057 target_rusage->ru_maxrss = tswapal(rusage->ru_maxrss);
1058 target_rusage->ru_ixrss = tswapal(rusage->ru_ixrss);
1059 target_rusage->ru_idrss = tswapal(rusage->ru_idrss);
1060 target_rusage->ru_isrss = tswapal(rusage->ru_isrss);
1061 target_rusage->ru_minflt = tswapal(rusage->ru_minflt);
1062 target_rusage->ru_majflt = tswapal(rusage->ru_majflt);
1063 target_rusage->ru_nswap = tswapal(rusage->ru_nswap);
1064 target_rusage->ru_inblock = tswapal(rusage->ru_inblock);
1065 target_rusage->ru_oublock = tswapal(rusage->ru_oublock);
1066 target_rusage->ru_msgsnd = tswapal(rusage->ru_msgsnd);
1067 target_rusage->ru_msgrcv = tswapal(rusage->ru_msgrcv);
1068 target_rusage->ru_nsignals = tswapal(rusage->ru_nsignals);
1069 target_rusage->ru_nvcsw = tswapal(rusage->ru_nvcsw);
1070 target_rusage->ru_nivcsw = tswapal(rusage->ru_nivcsw);
53a5960a 1071 unlock_user_struct(target_rusage, target_addr, 1);
579a97f7
FB		 1072
1073 return 0;
b409186b
FB		 1074}
1075
cbb21eed 1076static inline rlim_t target_to_host_rlim(abi_ulong target_rlim)
81bbe906 1077{
cbb21eed 1078 abi_ulong target_rlim_swap;
95b33b2f
WT		 1079 rlim_t result;
1080
cbb21eed
MB		 1081 target_rlim_swap = tswapal(target_rlim);
1082 if (target_rlim_swap == TARGET_RLIM_INFINITY)
1083 return RLIM_INFINITY;
1084
1085 result = target_rlim_swap;
1086 if (target_rlim_swap != (rlim_t)result)
1087 return RLIM_INFINITY;
95b33b2f
WT		 1088
1089 return result;
81bbe906
TY		 1090}
1091
cbb21eed 1092static inline abi_ulong host_to_target_rlim(rlim_t rlim)
81bbe906 1093{
cbb21eed
MB		 1094 abi_ulong target_rlim_swap;
1095 abi_ulong result;
95b33b2f 1096
cbb21eed 1097 if (rlim == RLIM_INFINITY || rlim != (abi_long)rlim)
95b33b2f 1098 target_rlim_swap = TARGET_RLIM_INFINITY;
81bbe906 1099 else
95b33b2f 1100 target_rlim_swap = rlim;
cbb21eed 1101 result = tswapal(target_rlim_swap);
95b33b2f
WT		 1102
1103 return result;
81bbe906
TY		 1104}
1105
e22b7015
WT		 1106static inline int target_to_host_resource(int code)
1107{
1108 switch (code) {
1109 case TARGET_RLIMIT_AS:
1110 return RLIMIT_AS;
1111 case TARGET_RLIMIT_CORE:
1112 return RLIMIT_CORE;
1113 case TARGET_RLIMIT_CPU:
1114 return RLIMIT_CPU;
1115 case TARGET_RLIMIT_DATA:
1116 return RLIMIT_DATA;
1117 case TARGET_RLIMIT_FSIZE:
1118 return RLIMIT_FSIZE;
1119 case TARGET_RLIMIT_LOCKS:
1120 return RLIMIT_LOCKS;
1121 case TARGET_RLIMIT_MEMLOCK:
1122 return RLIMIT_MEMLOCK;
1123 case TARGET_RLIMIT_MSGQUEUE:
1124 return RLIMIT_MSGQUEUE;
1125 case TARGET_RLIMIT_NICE:
1126 return RLIMIT_NICE;
1127 case TARGET_RLIMIT_NOFILE:
1128 return RLIMIT_NOFILE;
1129 case TARGET_RLIMIT_NPROC:
1130 return RLIMIT_NPROC;
1131 case TARGET_RLIMIT_RSS:
1132 return RLIMIT_RSS;
1133 case TARGET_RLIMIT_RTPRIO:
1134 return RLIMIT_RTPRIO;
1135 case TARGET_RLIMIT_SIGPENDING:
1136 return RLIMIT_SIGPENDING;
1137 case TARGET_RLIMIT_STACK:
1138 return RLIMIT_STACK;
1139 default:
1140 return code;
1141 }
1142}
1143
788f5ec4
TS		 1144static inline abi_long copy_from_user_timeval(struct timeval *tv,
1145 abi_ulong target_tv_addr)
31e31b8a 1146{
53a5960a
PB		 1147 struct target_timeval *target_tv;
1148
788f5ec4 1149 if (!lock_user_struct(VERIFY_READ, target_tv, target_tv_addr, 1))
579a97f7 1150 return -TARGET_EFAULT;
788f5ec4
TS		 1151
1152 __get_user(tv->tv_sec, &target_tv->tv_sec);
1153 __get_user(tv->tv_usec, &target_tv->tv_usec);
1154
1155 unlock_user_struct(target_tv, target_tv_addr, 0);
579a97f7
FB		 1156
1157 return 0;
31e31b8a
FB		 1158}
1159
788f5ec4
TS		 1160static inline abi_long copy_to_user_timeval(abi_ulong target_tv_addr,
1161 const struct timeval *tv)
31e31b8a 1162{
53a5960a
PB		 1163 struct target_timeval *target_tv;
1164
788f5ec4 1165 if (!lock_user_struct(VERIFY_WRITE, target_tv, target_tv_addr, 0))
579a97f7 1166 return -TARGET_EFAULT;
788f5ec4
TS		 1167
1168 __put_user(tv->tv_sec, &target_tv->tv_sec);
1169 __put_user(tv->tv_usec, &target_tv->tv_usec);
1170
1171 unlock_user_struct(target_tv, target_tv_addr, 1);
579a97f7
FB		 1172
1173 return 0;
31e31b8a
FB		 1174}
1175
ef4467e9
PB		 1176static inline abi_long copy_from_user_timezone(struct timezone *tz,
1177 abi_ulong target_tz_addr)
1178{
1179 struct target_timezone *target_tz;
1180
1181 if (!lock_user_struct(VERIFY_READ, target_tz, target_tz_addr, 1)) {
1182 return -TARGET_EFAULT;
1183 }
1184
1185 __get_user(tz->tz_minuteswest, &target_tz->tz_minuteswest);
1186 __get_user(tz->tz_dsttime, &target_tz->tz_dsttime);
1187
1188 unlock_user_struct(target_tz, target_tz_addr, 0);
1189
1190 return 0;
1191}
1192
8ec9cf89
NF		 1193#if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
1194#include <mqueue.h>
1195
24e1003a
AJ		 1196static inline abi_long copy_from_user_mq_attr(struct mq_attr *attr,
1197 abi_ulong target_mq_attr_addr)
1198{
1199 struct target_mq_attr *target_mq_attr;
1200
1201 if (!lock_user_struct(VERIFY_READ, target_mq_attr,
1202 target_mq_attr_addr, 1))
1203 return -TARGET_EFAULT;
1204
1205 __get_user(attr->mq_flags, &target_mq_attr->mq_flags);
1206 __get_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
1207 __get_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
1208 __get_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
1209
1210 unlock_user_struct(target_mq_attr, target_mq_attr_addr, 0);
1211
1212 return 0;
1213}
1214
1215static inline abi_long copy_to_user_mq_attr(abi_ulong target_mq_attr_addr,
1216 const struct mq_attr *attr)
1217{
1218 struct target_mq_attr *target_mq_attr;
1219
1220 if (!lock_user_struct(VERIFY_WRITE, target_mq_attr,
1221 target_mq_attr_addr, 0))
1222 return -TARGET_EFAULT;
1223
1224 __put_user(attr->mq_flags, &target_mq_attr->mq_flags);
1225 __put_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
1226 __put_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
1227 __put_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
1228
1229 unlock_user_struct(target_mq_attr, target_mq_attr_addr, 1);
1230
1231 return 0;
1232}
8ec9cf89 1233#endif
31e31b8a 1234
055e0906 1235#if defined(TARGET_NR_select) || defined(TARGET_NR__newselect)
0da46a6e 1236/* do_select() must return target values and target errnos. */
992f48a0 1237static abi_long do_select(int n,
26edcf41
TS		 1238 abi_ulong rfd_addr, abi_ulong wfd_addr,
1239 abi_ulong efd_addr, abi_ulong target_tv_addr)
31e31b8a
FB		 1240{
1241 fd_set rfds, wfds, efds;
1242 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
6df9d38d
PM		 1243 struct timeval tv;
1244 struct timespec ts, *ts_ptr;
992f48a0 1245 abi_long ret;
31e31b8a 1246
055e0906
MF		 1247 ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n);
1248 if (ret) {
1249 return ret;
53a5960a 1250 }
055e0906
MF		 1251 ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n);
1252 if (ret) {
1253 return ret;
53a5960a 1254 }
055e0906
MF		 1255 ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n);
1256 if (ret) {
1257 return ret;
53a5960a 1258 }
3b46e624 1259
26edcf41 1260 if (target_tv_addr) {
788f5ec4
TS		 1261 if (copy_from_user_timeval(&tv, target_tv_addr))
1262 return -TARGET_EFAULT;
6df9d38d
PM		 1263 ts.tv_sec = tv.tv_sec;
1264 ts.tv_nsec = tv.tv_usec * 1000;
1265 ts_ptr = &ts;
31e31b8a 1266 } else {
6df9d38d 1267 ts_ptr = NULL;
31e31b8a 1268 }
26edcf41 1269
6df9d38d
PM		 1270 ret = get_errno(safe_pselect6(n, rfds_ptr, wfds_ptr, efds_ptr,
1271 ts_ptr, NULL));
53a5960a 1272
26edcf41
TS		 1273 if (!is_error(ret)) {
1274 if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
1275 return -TARGET_EFAULT;
1276 if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n))
1277 return -TARGET_EFAULT;
1278 if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))
1279 return -TARGET_EFAULT;
31e31b8a 1280
6df9d38d
PM		 1281 if (target_tv_addr) {
1282 tv.tv_sec = ts.tv_sec;
1283 tv.tv_usec = ts.tv_nsec / 1000;
1284 if (copy_to_user_timeval(target_tv_addr, &tv)) {
1285 return -TARGET_EFAULT;
1286 }
1287 }
31e31b8a 1288 }
579a97f7 1289
31e31b8a
FB		 1290 return ret;
1291}
5457dc9e
LV		 1292
1293#if defined(TARGET_WANT_OLD_SYS_SELECT)
1294static abi_long do_old_select(abi_ulong arg1)
1295{
1296 struct target_sel_arg_struct *sel;
1297 abi_ulong inp, outp, exp, tvp;
1298 long nsel;
1299
1300 if (!lock_user_struct(VERIFY_READ, sel, arg1, 1)) {
1301 return -TARGET_EFAULT;
1302 }
1303
1304 nsel = tswapal(sel->n);
1305 inp = tswapal(sel->inp);
1306 outp = tswapal(sel->outp);
1307 exp = tswapal(sel->exp);
1308 tvp = tswapal(sel->tvp);
1309
1310 unlock_user_struct(sel, arg1, 0);
1311
1312 return do_select(nsel, inp, outp, exp, tvp);
1313}
1314#endif
055e0906 1315#endif
31e31b8a 1316
099d6b0f
RV		 1317static abi_long do_pipe2(int host_pipe[], int flags)
1318{
1319#ifdef CONFIG_PIPE2
1320 return pipe2(host_pipe, flags);
1321#else
1322 return -ENOSYS;
1323#endif
1324}
1325
fb41a66e
RH		 1326static abi_long do_pipe(void *cpu_env, abi_ulong pipedes,
1327 int flags, int is_pipe2)
099d6b0f
RV		 1328{
1329 int host_pipe[2];
1330 abi_long ret;
1331 ret = flags ? do_pipe2(host_pipe, flags) : pipe(host_pipe);
1332
1333 if (is_error(ret))
1334 return get_errno(ret);
fb41a66e
RH		 1335
1336 /* Several targets have special calling conventions for the original
1337 pipe syscall, but didn't replicate this into the pipe2 syscall. */
1338 if (!is_pipe2) {
1339#if defined(TARGET_ALPHA)
1340 ((CPUAlphaState *)cpu_env)->ir[IR_A4] = host_pipe[1];
1341 return host_pipe[0];
1342#elif defined(TARGET_MIPS)
1343 ((CPUMIPSState*)cpu_env)->active_tc.gpr[3] = host_pipe[1];
1344 return host_pipe[0];
1345#elif defined(TARGET_SH4)
597c0212 1346 ((CPUSH4State*)cpu_env)->gregs[1] = host_pipe[1];
fb41a66e 1347 return host_pipe[0];
82f05b69
PM		 1348#elif defined(TARGET_SPARC)
1349 ((CPUSPARCState*)cpu_env)->regwptr[1] = host_pipe[1];
1350 return host_pipe[0];
597c0212 1351#endif
fb41a66e
RH		 1352 }
1353
099d6b0f
RV		 1354 if (put_user_s32(host_pipe[0], pipedes)
1355 || put_user_s32(host_pipe[1], pipedes + sizeof(host_pipe[0])))
1356 return -TARGET_EFAULT;
099d6b0f
RV		 1357 return get_errno(ret);
1358}
1359
b975b83b
LL		 1360static inline abi_long target_to_host_ip_mreq(struct ip_mreqn *mreqn,
1361 abi_ulong target_addr,
1362 socklen_t len)
1363{
1364 struct target_ip_mreqn *target_smreqn;
1365
1366 target_smreqn = lock_user(VERIFY_READ, target_addr, len, 1);
1367 if (!target_smreqn)
1368 return -TARGET_EFAULT;
1369 mreqn->imr_multiaddr.s_addr = target_smreqn->imr_multiaddr.s_addr;
1370 mreqn->imr_address.s_addr = target_smreqn->imr_address.s_addr;
1371 if (len == sizeof(struct target_ip_mreqn))
cbb21eed 1372 mreqn->imr_ifindex = tswapal(target_smreqn->imr_ifindex);
b975b83b
LL		 1373 unlock_user(target_smreqn, target_addr, 0);
1374
1375 return 0;
1376}
1377
7b36f782 1378static inline abi_long target_to_host_sockaddr(int fd, struct sockaddr *addr,
579a97f7
FB		 1379 abi_ulong target_addr,
1380 socklen_t len)
7854b056 1381{
607175e0
AJ		 1382 const socklen_t unix_maxlen = sizeof (struct sockaddr_un);
1383 sa_family_t sa_family;
53a5960a
PB		 1384 struct target_sockaddr *target_saddr;
1385
7b36f782
LV		 1386 if (fd_trans_target_to_host_addr(fd)) {
1387 return fd_trans_target_to_host_addr(fd)(addr, target_addr, len);
1388 }
1389
579a97f7
FB		 1390 target_saddr = lock_user(VERIFY_READ, target_addr, len, 1);
1391 if (!target_saddr)
1392 return -TARGET_EFAULT;
607175e0
AJ		 1393
1394 sa_family = tswap16(target_saddr->sa_family);
1395
1396 /* Oops. The caller might send a incomplete sun_path; sun_path
1397 * must be terminated by \0 (see the manual page), but
1398 * unfortunately it is quite common to specify sockaddr_un
1399 * length as "strlen(x->sun_path)" while it should be
1400 * "strlen(...) + 1". We'll fix that here if needed.
1401 * Linux kernel has a similar feature.
1402 */
1403
1404 if (sa_family == AF_UNIX) {
1405 if (len < unix_maxlen && len > 0) {
1406 char *cp = (char*)target_saddr;
1407
1408 if ( cp[len-1] && !cp[len] )
1409 len++;
1410 }
1411 if (len > unix_maxlen)
1412 len = unix_maxlen;
1413 }
1414
53a5960a 1415 memcpy(addr, target_saddr, len);
607175e0 1416 addr->sa_family = sa_family;
6c5b5645
LV		 1417 if (sa_family == AF_NETLINK) {
1418 struct sockaddr_nl *nladdr;
1419
1420 nladdr = (struct sockaddr_nl *)addr;
1421 nladdr->nl_pid = tswap32(nladdr->nl_pid);
1422 nladdr->nl_groups = tswap32(nladdr->nl_groups);
1423 } else if (sa_family == AF_PACKET) {
33a29b51
JT		 1424 struct target_sockaddr_ll *lladdr;
1425
1426 lladdr = (struct target_sockaddr_ll *)addr;
1427 lladdr->sll_ifindex = tswap32(lladdr->sll_ifindex);
1428 lladdr->sll_hatype = tswap16(lladdr->sll_hatype);
1429 }
53a5960a 1430 unlock_user(target_saddr, target_addr, 0);
579a97f7
FB		 1431
1432 return 0;
7854b056
FB		 1433}
1434
579a97f7
FB		 1435static inline abi_long host_to_target_sockaddr(abi_ulong target_addr,
1436 struct sockaddr *addr,
1437 socklen_t len)
7854b056 1438{
53a5960a
PB		 1439 struct target_sockaddr *target_saddr;
1440
a1e22192
PM		 1441 if (len == 0) {
1442 return 0;
1443 }
6860710c 1444 assert(addr);
a1e22192 1445
579a97f7
FB		 1446 target_saddr = lock_user(VERIFY_WRITE, target_addr, len, 0);
1447 if (!target_saddr)
1448 return -TARGET_EFAULT;
53a5960a 1449 memcpy(target_saddr, addr, len);
a1e22192
PM		 1450 if (len >= offsetof(struct target_sockaddr, sa_family) +
1451 sizeof(target_saddr->sa_family)) {
1452 target_saddr->sa_family = tswap16(addr->sa_family);
1453 }
1454 if (addr->sa_family == AF_NETLINK && len >= sizeof(struct sockaddr_nl)) {
6c5b5645
LV		 1455 struct sockaddr_nl *target_nl = (struct sockaddr_nl *)target_saddr;
1456 target_nl->nl_pid = tswap32(target_nl->nl_pid);
1457 target_nl->nl_groups = tswap32(target_nl->nl_groups);
a82ea939
LV		 1458 } else if (addr->sa_family == AF_PACKET) {
1459 struct sockaddr_ll *target_ll = (struct sockaddr_ll *)target_saddr;
1460 target_ll->sll_ifindex = tswap32(target_ll->sll_ifindex);
1461 target_ll->sll_hatype = tswap16(target_ll->sll_hatype);
ee1ac3a1
HD		 1462 } else if (addr->sa_family == AF_INET6 &&
1463 len >= sizeof(struct target_sockaddr_in6)) {
1464 struct target_sockaddr_in6 *target_in6 =
1465 (struct target_sockaddr_in6 *)target_saddr;
1466 target_in6->sin6_scope_id = tswap16(target_in6->sin6_scope_id);
6c5b5645 1467 }
53a5960a 1468 unlock_user(target_saddr, target_addr, len);
579a97f7
FB		 1469
1470 return 0;
7854b056
FB		 1471}
1472
5a4a898d
FB		 1473static inline abi_long target_to_host_cmsg(struct msghdr *msgh,
1474 struct target_msghdr *target_msgh)
7854b056
FB		 1475{
1476 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
5a4a898d
FB		 1477 abi_long msg_controllen;
1478 abi_ulong target_cmsg_addr;
ee104587 1479 struct target_cmsghdr *target_cmsg, *target_cmsg_start;
7854b056 1480 socklen_t space = 0;
5a4a898d 1481
cbb21eed 1482 msg_controllen = tswapal(target_msgh->msg_controllen);
5a4a898d
FB		 1483 if (msg_controllen < sizeof (struct target_cmsghdr))
1484 goto the_end;
cbb21eed 1485 target_cmsg_addr = tswapal(target_msgh->msg_control);
5a4a898d 1486 target_cmsg = lock_user(VERIFY_READ, target_cmsg_addr, msg_controllen, 1);
ee104587 1487 target_cmsg_start = target_cmsg;
5a4a898d
FB		 1488 if (!target_cmsg)
1489 return -TARGET_EFAULT;
7854b056
FB		 1490
1491 while (cmsg && target_cmsg) {
1492 void *data = CMSG_DATA(cmsg);
1493 void *target_data = TARGET_CMSG_DATA(target_cmsg);
1494
cbb21eed 1495 int len = tswapal(target_cmsg->cmsg_len)
ad762b99 1496 - sizeof(struct target_cmsghdr);
7854b056
FB		 1497
1498 space += CMSG_SPACE(len);
1499 if (space > msgh->msg_controllen) {
1500 space -= CMSG_SPACE(len);
c2aeb258
PM		 1501 /* This is a QEMU bug, since we allocated the payload
1502 * area ourselves (unlike overflow in host-to-target
1503 * conversion, which is just the guest giving us a buffer
1504 * that's too small). It can't happen for the payload types
1505 * we currently support; if it becomes an issue in future
1506 * we would need to improve our allocation strategy to
1507 * something more intelligent than "twice the size of the
1508 * target buffer we're reading from".
1509 */
31febb71 1510 gemu_log("Host cmsg overflow\n");
7854b056
FB		 1511 break;
1512 }
1513
dbf4f796
PJ		 1514 if (tswap32(target_cmsg->cmsg_level) == TARGET_SOL_SOCKET) {
1515 cmsg->cmsg_level = SOL_SOCKET;
1516 } else {
1517 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
1518 }
7854b056
FB		 1519 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
1520 cmsg->cmsg_len = CMSG_LEN(len);
1521
30b8b68e 1522 if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_RIGHTS) {
7854b056
FB		 1523 int *fd = (int *)data;
1524 int *target_fd = (int *)target_data;
1525 int i, numfds = len / sizeof(int);
1526
876e23cb
PM		 1527 for (i = 0; i < numfds; i++) {
1528 __get_user(fd[i], target_fd + i);
1529 }
30b8b68e
AS		 1530 } else if (cmsg->cmsg_level == SOL_SOCKET
1531 && cmsg->cmsg_type == SCM_CREDENTIALS) {
1532 struct ucred *cred = (struct ucred *)data;
1533 struct target_ucred *target_cred =
1534 (struct target_ucred *)target_data;
1535
876e23cb
PM		 1536 __get_user(cred->pid, &target_cred->pid);
1537 __get_user(cred->uid, &target_cred->uid);
1538 __get_user(cred->gid, &target_cred->gid);
30b8b68e
AS		 1539 } else {
1540 gemu_log("Unsupported ancillary data: %d/%d\n",
1541 cmsg->cmsg_level, cmsg->cmsg_type);
1542 memcpy(data, target_data, len);
7854b056
FB		 1543 }
1544
1545 cmsg = CMSG_NXTHDR(msgh, cmsg);
ee104587
JN		 1546 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg,
1547 target_cmsg_start);
7854b056 1548 }
5a4a898d
FB		 1549 unlock_user(target_cmsg, target_cmsg_addr, 0);
1550 the_end:
7854b056 1551 msgh->msg_controllen = space;
5a4a898d 1552 return 0;
7854b056
FB		 1553}
1554
5a4a898d
FB		 1555static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh,
1556 struct msghdr *msgh)
7854b056
FB		 1557{
1558 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
5a4a898d
FB		 1559 abi_long msg_controllen;
1560 abi_ulong target_cmsg_addr;
ee104587 1561 struct target_cmsghdr *target_cmsg, *target_cmsg_start;
7854b056
FB		 1562 socklen_t space = 0;
1563
cbb21eed 1564 msg_controllen = tswapal(target_msgh->msg_controllen);
5a4a898d
FB		 1565 if (msg_controllen < sizeof (struct target_cmsghdr))
1566 goto the_end;
cbb21eed 1567 target_cmsg_addr = tswapal(target_msgh->msg_control);
5a4a898d 1568 target_cmsg = lock_user(VERIFY_WRITE, target_cmsg_addr, msg_controllen, 0);
ee104587 1569 target_cmsg_start = target_cmsg;
5a4a898d
FB		 1570 if (!target_cmsg)
1571 return -TARGET_EFAULT;
1572
7854b056
FB		 1573 while (cmsg && target_cmsg) {
1574 void *data = CMSG_DATA(cmsg);
1575 void *target_data = TARGET_CMSG_DATA(target_cmsg);
1576
ad762b99 1577 int len = cmsg->cmsg_len - sizeof(struct cmsghdr);
c2aeb258 1578 int tgt_len, tgt_space;
7854b056 1579
c2aeb258
PM		 1580 /* We never copy a half-header but may copy half-data;
1581 * this is Linux's behaviour in put_cmsg(). Note that
1582 * truncation here is a guest problem (which we report
1583 * to the guest via the CTRUNC bit), unlike truncation
1584 * in target_to_host_cmsg, which is a QEMU bug.
1585 */
7174970a 1586 if (msg_controllen < sizeof(struct target_cmsghdr)) {
c2aeb258 1587 target_msgh->msg_flags |= tswap32(MSG_CTRUNC);
7854b056
FB		 1588 break;
1589 }
1590
dbf4f796
PJ		 1591 if (cmsg->cmsg_level == SOL_SOCKET) {
1592 target_cmsg->cmsg_level = tswap32(TARGET_SOL_SOCKET);
1593 } else {
1594 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
1595 }
7854b056 1596 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
7854b056 1597
c2aeb258
PM		 1598 /* Payload types which need a different size of payload on
1599 * the target must adjust tgt_len here.
1600 */
309786cf 1601 tgt_len = len;
c2aeb258
PM		 1602 switch (cmsg->cmsg_level) {
1603 case SOL_SOCKET:
1604 switch (cmsg->cmsg_type) {
1605 case SO_TIMESTAMP:
1606 tgt_len = sizeof(struct target_timeval);
1607 break;
1608 default:
1609 break;
1610 }
309786cf 1611 break;
c2aeb258
PM		 1612 default:
1613 break;
1614 }
1615
7174970a 1616 if (msg_controllen < TARGET_CMSG_LEN(tgt_len)) {
c2aeb258 1617 target_msgh->msg_flags |= tswap32(MSG_CTRUNC);
7174970a 1618 tgt_len = msg_controllen - sizeof(struct target_cmsghdr);
c2aeb258
PM		 1619 }
1620
1621 /* We must now copy-and-convert len bytes of payload
1622 * into tgt_len bytes of destination space. Bear in mind
1623 * that in both source and destination we may be dealing
1624 * with a truncated value!
1625 */
52b65494
HD		 1626 switch (cmsg->cmsg_level) {
1627 case SOL_SOCKET:
1628 switch (cmsg->cmsg_type) {
1629 case SCM_RIGHTS:
1630 {
1631 int *fd = (int *)data;
1632 int *target_fd = (int *)target_data;
c2aeb258 1633 int i, numfds = tgt_len / sizeof(int);
52b65494 1634
876e23cb
PM		 1635 for (i = 0; i < numfds; i++) {
1636 __put_user(fd[i], target_fd + i);
1637 }
52b65494
HD		 1638 break;
1639 }
1640 case SO_TIMESTAMP:
1641 {
1642 struct timeval *tv = (struct timeval *)data;
1643 struct target_timeval *target_tv =
1644 (struct target_timeval *)target_data;
1645
c2aeb258
PM		 1646 if (len != sizeof(struct timeval) ||
1647 tgt_len != sizeof(struct target_timeval)) {
52b65494 1648 goto unimplemented;
c2aeb258 1649 }
52b65494
HD		 1650
1651 /* copy struct timeval to target */
876e23cb
PM		 1652 __put_user(tv->tv_sec, &target_tv->tv_sec);
1653 __put_user(tv->tv_usec, &target_tv->tv_usec);
52b65494
HD		 1654 break;
1655 }
4bc29756
HD		 1656 case SCM_CREDENTIALS:
1657 {
1658 struct ucred *cred = (struct ucred *)data;
1659 struct target_ucred *target_cred =
1660 (struct target_ucred *)target_data;
1661
1662 __put_user(cred->pid, &target_cred->pid);
1663 __put_user(cred->uid, &target_cred->uid);
1664 __put_user(cred->gid, &target_cred->gid);
1665 break;
1666 }
52b65494
HD		 1667 default:
1668 goto unimplemented;
1669 }
1670 break;
7854b056 1671
ee1ac3a1
HD		 1672 case SOL_IP:
1673 switch (cmsg->cmsg_type) {
1674 case IP_TTL:
1675 {
1676 uint32_t *v = (uint32_t *)data;
1677 uint32_t *t_int = (uint32_t *)target_data;
1678
7174970a
PM		 1679 if (len != sizeof(uint32_t) ||
1680 tgt_len != sizeof(uint32_t)) {
1681 goto unimplemented;
1682 }
ee1ac3a1
HD		 1683 __put_user(*v, t_int);
1684 break;
1685 }
1686 case IP_RECVERR:
1687 {
1688 struct errhdr_t {
1689 struct sock_extended_err ee;
1690 struct sockaddr_in offender;
1691 };
1692 struct errhdr_t *errh = (struct errhdr_t *)data;
1693 struct errhdr_t *target_errh =
1694 (struct errhdr_t *)target_data;
1695
7174970a
PM		 1696 if (len != sizeof(struct errhdr_t) ||
1697 tgt_len != sizeof(struct errhdr_t)) {
1698 goto unimplemented;
1699 }
ee1ac3a1
HD		 1700 __put_user(errh->ee.ee_errno, &target_errh->ee.ee_errno);
1701 __put_user(errh->ee.ee_origin, &target_errh->ee.ee_origin);
1702 __put_user(errh->ee.ee_type, &target_errh->ee.ee_type);
1703 __put_user(errh->ee.ee_code, &target_errh->ee.ee_code);
1704 __put_user(errh->ee.ee_pad, &target_errh->ee.ee_pad);
1705 __put_user(errh->ee.ee_info, &target_errh->ee.ee_info);
1706 __put_user(errh->ee.ee_data, &target_errh->ee.ee_data);
1707 host_to_target_sockaddr((unsigned long) &target_errh->offender,
1708 (void *) &errh->offender, sizeof(errh->offender));
1709 break;
1710 }
1711 default:
1712 goto unimplemented;
1713 }
1714 break;
1715
1716 case SOL_IPV6:
1717 switch (cmsg->cmsg_type) {
1718 case IPV6_HOPLIMIT:
1719 {
1720 uint32_t *v = (uint32_t *)data;
1721 uint32_t *t_int = (uint32_t *)target_data;
1722
7174970a
PM		 1723 if (len != sizeof(uint32_t) ||
1724 tgt_len != sizeof(uint32_t)) {
1725 goto unimplemented;
1726 }
ee1ac3a1
HD		 1727 __put_user(*v, t_int);
1728 break;
1729 }
1730 case IPV6_RECVERR:
1731 {
1732 struct errhdr6_t {
1733 struct sock_extended_err ee;
1734 struct sockaddr_in6 offender;
1735 };
1736 struct errhdr6_t *errh = (struct errhdr6_t *)data;
1737 struct errhdr6_t *target_errh =
1738 (struct errhdr6_t *)target_data;
1739
7174970a
PM		 1740 if (len != sizeof(struct errhdr6_t) ||
1741 tgt_len != sizeof(struct errhdr6_t)) {
1742 goto unimplemented;
1743 }
ee1ac3a1
HD		 1744 __put_user(errh->ee.ee_errno, &target_errh->ee.ee_errno);
1745 __put_user(errh->ee.ee_origin, &target_errh->ee.ee_origin);
1746 __put_user(errh->ee.ee_type, &target_errh->ee.ee_type);
1747 __put_user(errh->ee.ee_code, &target_errh->ee.ee_code);
1748 __put_user(errh->ee.ee_pad, &target_errh->ee.ee_pad);
1749 __put_user(errh->ee.ee_info, &target_errh->ee.ee_info);
1750 __put_user(errh->ee.ee_data, &target_errh->ee.ee_data);
1751 host_to_target_sockaddr((unsigned long) &target_errh->offender,
1752 (void *) &errh->offender, sizeof(errh->offender));
1753 break;
1754 }
1755 default:
1756 goto unimplemented;
1757 }
1758 break;
1759
52b65494
HD		 1760 default:
1761 unimplemented:
aebf5bc7
JH		 1762 gemu_log("Unsupported ancillary data: %d/%d\n",
1763 cmsg->cmsg_level, cmsg->cmsg_type);
c2aeb258
PM		 1764 memcpy(target_data, data, MIN(len, tgt_len));
1765 if (tgt_len > len) {
1766 memset(target_data + len, 0, tgt_len - len);
1767 }
7854b056
FB		 1768 }
1769
7174970a
PM		 1770 target_cmsg->cmsg_len = tswapal(TARGET_CMSG_LEN(tgt_len));
1771 tgt_space = TARGET_CMSG_SPACE(tgt_len);
c2aeb258
PM		 1772 if (msg_controllen < tgt_space) {
1773 tgt_space = msg_controllen;
1774 }
1775 msg_controllen -= tgt_space;
1776 space += tgt_space;
7854b056 1777 cmsg = CMSG_NXTHDR(msgh, cmsg);
ee104587
JN		 1778 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg,
1779 target_cmsg_start);
7854b056 1780 }
5a4a898d
FB		 1781 unlock_user(target_cmsg, target_cmsg_addr, space);
1782 the_end:
cbb21eed 1783 target_msgh->msg_controllen = tswapal(space);
5a4a898d 1784 return 0;
7854b056
FB		 1785}
1786
0da46a6e 1787/* do_setsockopt() Must return target values and target errnos. */
992f48a0 1788static abi_long do_setsockopt(int sockfd, int level, int optname,
2f619698 1789 abi_ulong optval_addr, socklen_t optlen)
7854b056 1790{
992f48a0 1791 abi_long ret;
32407103 1792 int val;
b975b83b 1793 struct ip_mreqn *ip_mreq;
6e3cb58f 1794 struct ip_mreq_source *ip_mreq_source;
3b46e624 1795
8853f86e
FB		 1796 switch(level) {
1797 case SOL_TCP:
7854b056 1798 /* TCP options all take an 'int' value. */
7854b056 1799 if (optlen < sizeof(uint32_t))
0da46a6e 1800 return -TARGET_EINVAL;
3b46e624 1801
2f619698
FB		 1802 if (get_user_u32(val, optval_addr))
1803 return -TARGET_EFAULT;
8853f86e
FB		 1804 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
1805 break;
1806 case SOL_IP:
1807 switch(optname) {
2efbe911
FB		 1808 case IP_TOS:
1809 case IP_TTL:
8853f86e 1810 case IP_HDRINCL:
2efbe911
FB		 1811 case IP_ROUTER_ALERT:
1812 case IP_RECVOPTS:
1813 case IP_RETOPTS:
1814 case IP_PKTINFO:
1815 case IP_MTU_DISCOVER:
1816 case IP_RECVERR:
ee1ac3a1 1817 case IP_RECVTTL:
2efbe911
FB		 1818 case IP_RECVTOS:
1819#ifdef IP_FREEBIND
1820 case IP_FREEBIND:
1821#endif
1822 case IP_MULTICAST_TTL:
1823 case IP_MULTICAST_LOOP:
8853f86e
FB		 1824 val = 0;
1825 if (optlen >= sizeof(uint32_t)) {
2f619698
FB		 1826 if (get_user_u32(val, optval_addr))
1827 return -TARGET_EFAULT;
8853f86e 1828 } else if (optlen >= 1) {
2f619698
FB		 1829 if (get_user_u8(val, optval_addr))
1830 return -TARGET_EFAULT;
8853f86e
FB		 1831 }
1832 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
1833 break;
b975b83b
LL		 1834 case IP_ADD_MEMBERSHIP:
1835 case IP_DROP_MEMBERSHIP:
1836 if (optlen < sizeof (struct target_ip_mreq) ||
1837 optlen > sizeof (struct target_ip_mreqn))
1838 return -TARGET_EINVAL;
1839
1840 ip_mreq = (struct ip_mreqn *) alloca(optlen);
1841 target_to_host_ip_mreq(ip_mreq, optval_addr, optlen);
1842 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq, optlen));
1843 break;
1844
6e3cb58f
LL		 1845 case IP_BLOCK_SOURCE:
1846 case IP_UNBLOCK_SOURCE:
1847 case IP_ADD_SOURCE_MEMBERSHIP:
1848 case IP_DROP_SOURCE_MEMBERSHIP:
1849 if (optlen != sizeof (struct target_ip_mreq_source))
1850 return -TARGET_EINVAL;
1851
1852 ip_mreq_source = lock_user(VERIFY_READ, optval_addr, optlen, 1);
1853 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq_source, optlen));
1854 unlock_user (ip_mreq_source, optval_addr, 0);
1855 break;
1856
920394db
JH		 1857 default:
1858 goto unimplemented;
1859 }
1860 break;
0d78b3b5
LV		 1861 case SOL_IPV6:
1862 switch (optname) {
1863 case IPV6_MTU_DISCOVER:
1864 case IPV6_MTU:
1865 case IPV6_V6ONLY:
1866 case IPV6_RECVPKTINFO:
ee1ac3a1 1867 case IPV6_UNICAST_HOPS:
21749c4c
LV		 1868 case IPV6_MULTICAST_HOPS:
1869 case IPV6_MULTICAST_LOOP:
ee1ac3a1
HD		 1870 case IPV6_RECVERR:
1871 case IPV6_RECVHOPLIMIT:
1872 case IPV6_2292HOPLIMIT:
1873 case IPV6_CHECKSUM:
0d78b3b5
LV		 1874 val = 0;
1875 if (optlen < sizeof(uint32_t)) {
1876 return -TARGET_EINVAL;
1877 }
1878 if (get_user_u32(val, optval_addr)) {
1879 return -TARGET_EFAULT;
1880 }
1881 ret = get_errno(setsockopt(sockfd, level, optname,
1882 &val, sizeof(val)));
1883 break;
ee1ac3a1
HD		 1884 case IPV6_PKTINFO:
1885 {
1886 struct in6_pktinfo pki;
1887
1888 if (optlen < sizeof(pki)) {
1889 return -TARGET_EINVAL;
1890 }
1891
1892 if (copy_from_user(&pki, optval_addr, sizeof(pki))) {
1893 return -TARGET_EFAULT;
1894 }
1895
1896 pki.ipi6_ifindex = tswap32(pki.ipi6_ifindex);
1897
1898 ret = get_errno(setsockopt(sockfd, level, optname,
1899 &pki, sizeof(pki)));
1900 break;
1901 }
1902 default:
1903 goto unimplemented;
1904 }
1905 break;
1906 case SOL_ICMPV6:
1907 switch (optname) {
1908 case ICMPV6_FILTER:
1909 {
1910 struct icmp6_filter icmp6f;
1911
1912 if (optlen > sizeof(icmp6f)) {
1913 optlen = sizeof(icmp6f);
1914 }
1915
1916 if (copy_from_user(&icmp6f, optval_addr, optlen)) {
1917 return -TARGET_EFAULT;
1918 }
1919
1920 for (val = 0; val < 8; val++) {
1921 icmp6f.data[val] = tswap32(icmp6f.data[val]);
1922 }
1923
1924 ret = get_errno(setsockopt(sockfd, level, optname,
1925 &icmp6f, optlen));
1926 break;
1927 }
0d78b3b5
LV		 1928 default:
1929 goto unimplemented;
1930 }
1931 break;
920394db
JH		 1932 case SOL_RAW:
1933 switch (optname) {
1934 case ICMP_FILTER:
ee1ac3a1
HD		 1935 case IPV6_CHECKSUM:
1936 /* those take an u32 value */
920394db
JH		 1937 if (optlen < sizeof(uint32_t)) {
1938 return -TARGET_EINVAL;
1939 }
1940
1941 if (get_user_u32(val, optval_addr)) {
1942 return -TARGET_EFAULT;
1943 }
1944 ret = get_errno(setsockopt(sockfd, level, optname,
1945 &val, sizeof(val)));
1946 break;
1947
8853f86e
FB		 1948 default:
1949 goto unimplemented;
1950 }
1951 break;
3532fa74 1952 case TARGET_SOL_SOCKET:
8853f86e 1953 switch (optname) {
1b09aeb9
LV		 1954 case TARGET_SO_RCVTIMEO:
1955 {
1956 struct timeval tv;
1957
1958 optname = SO_RCVTIMEO;
1959
1960set_timeout:
1961 if (optlen != sizeof(struct target_timeval)) {
1962 return -TARGET_EINVAL;
1963 }
1964
1965 if (copy_from_user_timeval(&tv, optval_addr)) {
1966 return -TARGET_EFAULT;
1967 }
1968
1969 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname,
1970 &tv, sizeof(tv)));
1971 return ret;
1972 }
1973 case TARGET_SO_SNDTIMEO:
1974 optname = SO_SNDTIMEO;
1975 goto set_timeout;
f57d4192
LV		 1976 case TARGET_SO_ATTACH_FILTER:
1977 {
1978 struct target_sock_fprog *tfprog;
1979 struct target_sock_filter *tfilter;
1980 struct sock_fprog fprog;
1981 struct sock_filter *filter;
1982 int i;
1983
1984 if (optlen != sizeof(*tfprog)) {
1985 return -TARGET_EINVAL;
1986 }
1987 if (!lock_user_struct(VERIFY_READ, tfprog, optval_addr, 0)) {
1988 return -TARGET_EFAULT;
1989 }
1990 if (!lock_user_struct(VERIFY_READ, tfilter,
1991 tswapal(tfprog->filter), 0)) {
1992 unlock_user_struct(tfprog, optval_addr, 1);
1993 return -TARGET_EFAULT;
1994 }
1995
1996 fprog.len = tswap16(tfprog->len);
0e173b24 1997 filter = g_try_new(struct sock_filter, fprog.len);
f57d4192
LV		 1998 if (filter == NULL) {
1999 unlock_user_struct(tfilter, tfprog->filter, 1);
2000 unlock_user_struct(tfprog, optval_addr, 1);
2001 return -TARGET_ENOMEM;
2002 }
2003 for (i = 0; i < fprog.len; i++) {
2004 filter[i].code = tswap16(tfilter[i].code);
2005 filter[i].jt = tfilter[i].jt;
2006 filter[i].jf = tfilter[i].jf;
2007 filter[i].k = tswap32(tfilter[i].k);
2008 }
2009 fprog.filter = filter;
2010
2011 ret = get_errno(setsockopt(sockfd, SOL_SOCKET,
2012 SO_ATTACH_FILTER, &fprog, sizeof(fprog)));
0e173b24 2013 g_free(filter);
f57d4192
LV		 2014
2015 unlock_user_struct(tfilter, tfprog->filter, 1);
2016 unlock_user_struct(tfprog, optval_addr, 1);
2017 return ret;
2018 }
451aaf68
JT		 2019 case TARGET_SO_BINDTODEVICE:
2020 {
2021 char *dev_ifname, *addr_ifname;
2022
2023 if (optlen > IFNAMSIZ - 1) {
2024 optlen = IFNAMSIZ - 1;
2025 }
2026 dev_ifname = lock_user(VERIFY_READ, optval_addr, optlen, 1);
2027 if (!dev_ifname) {
2028 return -TARGET_EFAULT;
2029 }
2030 optname = SO_BINDTODEVICE;
2031 addr_ifname = alloca(IFNAMSIZ);
2032 memcpy(addr_ifname, dev_ifname, optlen);
2033 addr_ifname[optlen] = 0;
fad6c58a
CG		 2034 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname,
2035 addr_ifname, optlen));
451aaf68
JT		 2036 unlock_user (dev_ifname, optval_addr, 0);
2037 return ret;
2038 }
83eb6e50
CMAB		 2039 case TARGET_SO_LINGER:
2040 {
2041 struct linger lg;
2042 struct target_linger *tlg;
2043
2044 if (optlen != sizeof(struct target_linger)) {
2045 return -TARGET_EINVAL;
2046 }
2047 if (!lock_user_struct(VERIFY_READ, tlg, optval_addr, 1)) {
2048 return -TARGET_EFAULT;
2049 }
2050 __get_user(lg.l_onoff, &tlg->l_onoff);
2051 __get_user(lg.l_linger, &tlg->l_linger);
2052 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, SO_LINGER,
2053 &lg, sizeof(lg)));
2054 unlock_user_struct(tlg, optval_addr, 0);
2055 return ret;
2056 }
8853f86e 2057 /* Options with 'int' argument. */
3532fa74
FB		 2058 case TARGET_SO_DEBUG:
2059 optname = SO_DEBUG;
2060 break;
2061 case TARGET_SO_REUSEADDR:
2062 optname = SO_REUSEADDR;
2063 break;
113a9dd7
YS		 2064#ifdef SO_REUSEPORT
2065 case TARGET_SO_REUSEPORT:
2066 optname = SO_REUSEPORT;
2067 break;
2068#endif
3532fa74
FB		 2069 case TARGET_SO_TYPE:
2070 optname = SO_TYPE;
2071 break;
2072 case TARGET_SO_ERROR:
2073 optname = SO_ERROR;
2074 break;
2075 case TARGET_SO_DONTROUTE:
2076 optname = SO_DONTROUTE;
2077 break;
2078 case TARGET_SO_BROADCAST:
2079 optname = SO_BROADCAST;
2080 break;
2081 case TARGET_SO_SNDBUF:
2082 optname = SO_SNDBUF;
2083 break;
d79b6cc4
PB		 2084 case TARGET_SO_SNDBUFFORCE:
2085 optname = SO_SNDBUFFORCE;
2086 break;
3532fa74
FB		 2087 case TARGET_SO_RCVBUF:
2088 optname = SO_RCVBUF;
2089 break;
d79b6cc4
PB		 2090 case TARGET_SO_RCVBUFFORCE:
2091 optname = SO_RCVBUFFORCE;
2092 break;
3532fa74
FB		 2093 case TARGET_SO_KEEPALIVE:
2094 optname = SO_KEEPALIVE;
2095 break;
2096 case TARGET_SO_OOBINLINE:
2097 optname = SO_OOBINLINE;
2098 break;
2099 case TARGET_SO_NO_CHECK:
2100 optname = SO_NO_CHECK;
2101 break;
2102 case TARGET_SO_PRIORITY:
2103 optname = SO_PRIORITY;
2104 break;
5e83e8e3 2105#ifdef SO_BSDCOMPAT
3532fa74
FB		 2106 case TARGET_SO_BSDCOMPAT:
2107 optname = SO_BSDCOMPAT;
2108 break;
5e83e8e3 2109#endif
3532fa74
FB		 2110 case TARGET_SO_PASSCRED:
2111 optname = SO_PASSCRED;
2112 break;
82d0fe6b
PB		 2113 case TARGET_SO_PASSSEC:
2114 optname = SO_PASSSEC;
2115 break;
3532fa74
FB		 2116 case TARGET_SO_TIMESTAMP:
2117 optname = SO_TIMESTAMP;
2118 break;
2119 case TARGET_SO_RCVLOWAT:
2120 optname = SO_RCVLOWAT;
2121 break;
8853f86e
FB		 2122 default:
2123 goto unimplemented;
2124 }
3532fa74 2125 if (optlen < sizeof(uint32_t))
2f619698 2126 return -TARGET_EINVAL;
3532fa74 2127
2f619698
FB		 2128 if (get_user_u32(val, optval_addr))
2129 return -TARGET_EFAULT;
3532fa74 2130 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val)));
8853f86e 2131 break;
7854b056 2132 default:
8853f86e 2133 unimplemented:
b2bedb21 2134 gemu_log("Unsupported setsockopt level=%d optname=%d\n", level, optname);
6fa13c17 2135 ret = -TARGET_ENOPROTOOPT;
7854b056 2136 }
8853f86e 2137 return ret;
7854b056
FB		 2138}
2139
0da46a6e 2140/* do_getsockopt() Must return target values and target errnos. */
992f48a0 2141static abi_long do_getsockopt(int sockfd, int level, int optname,
2f619698 2142 abi_ulong optval_addr, abi_ulong optlen)
7854b056 2143{
992f48a0 2144 abi_long ret;
b55266b5
BS		 2145 int len, val;
2146 socklen_t lv;
8853f86e
FB		 2147
2148 switch(level) {
3532fa74 2149 case TARGET_SOL_SOCKET:
f3b974cd
JL		 2150 level = SOL_SOCKET;
2151 switch (optname) {
2152 /* These don't just return a single integer */
f3b974cd
JL		 2153 case TARGET_SO_RCVTIMEO:
2154 case TARGET_SO_SNDTIMEO:
f3b974cd
JL		 2155 case TARGET_SO_PEERNAME:
2156 goto unimplemented;
583359a6
AP		 2157 case TARGET_SO_PEERCRED: {
2158 struct ucred cr;
2159 socklen_t crlen;
2160 struct target_ucred *tcr;
2161
2162 if (get_user_u32(len, optlen)) {
2163 return -TARGET_EFAULT;
2164 }
2165 if (len < 0) {
2166 return -TARGET_EINVAL;
2167 }
2168
2169 crlen = sizeof(cr);
2170 ret = get_errno(getsockopt(sockfd, level, SO_PEERCRED,
2171 &cr, &crlen));
2172 if (ret < 0) {
2173 return ret;
2174 }
2175 if (len > crlen) {
2176 len = crlen;
2177 }
2178 if (!lock_user_struct(VERIFY_WRITE, tcr, optval_addr, 0)) {
2179 return -TARGET_EFAULT;
2180 }
2181 __put_user(cr.pid, &tcr->pid);
2182 __put_user(cr.uid, &tcr->uid);
2183 __put_user(cr.gid, &tcr->gid);
2184 unlock_user_struct(tcr, optval_addr, 1);
2185 if (put_user_u32(len, optlen)) {
83eb6e50
CMAB		 2186 return -TARGET_EFAULT;
2187 }
2188 break;
2189 }
2190 case TARGET_SO_LINGER:
2191 {
2192 struct linger lg;
2193 socklen_t lglen;
2194 struct target_linger *tlg;
2195
2196 if (get_user_u32(len, optlen)) {
2197 return -TARGET_EFAULT;
2198 }
2199 if (len < 0) {
2200 return -TARGET_EINVAL;
2201 }
2202
2203 lglen = sizeof(lg);
2204 ret = get_errno(getsockopt(sockfd, level, SO_LINGER,
2205 &lg, &lglen));
2206 if (ret < 0) {
2207 return ret;
2208 }
2209 if (len > lglen) {
2210 len = lglen;
2211 }
2212 if (!lock_user_struct(VERIFY_WRITE, tlg, optval_addr, 0)) {
2213 return -TARGET_EFAULT;
2214 }
2215 __put_user(lg.l_onoff, &tlg->l_onoff);
2216 __put_user(lg.l_linger, &tlg->l_linger);
2217 unlock_user_struct(tlg, optval_addr, 1);
2218 if (put_user_u32(len, optlen)) {
583359a6
AP		 2219 return -TARGET_EFAULT;
2220 }
2221 break;
2222 }
f3b974cd
JL		 2223 /* Options with 'int' argument. */
2224 case TARGET_SO_DEBUG:
2225 optname = SO_DEBUG;
2226 goto int_case;
2227 case TARGET_SO_REUSEADDR:
2228 optname = SO_REUSEADDR;
2229 goto int_case;
113a9dd7
YS		 2230#ifdef SO_REUSEPORT
2231 case TARGET_SO_REUSEPORT:
2232 optname = SO_REUSEPORT;
2233 goto int_case;
2234#endif
f3b974cd
JL		 2235 case TARGET_SO_TYPE:
2236 optname = SO_TYPE;
2237 goto int_case;
2238 case TARGET_SO_ERROR:
2239 optname = SO_ERROR;
2240 goto int_case;
2241 case TARGET_SO_DONTROUTE:
2242 optname = SO_DONTROUTE;
2243 goto int_case;
2244 case TARGET_SO_BROADCAST:
2245 optname = SO_BROADCAST;
2246 goto int_case;
2247 case TARGET_SO_SNDBUF:
2248 optname = SO_SNDBUF;
2249 goto int_case;
2250 case TARGET_SO_RCVBUF:
2251 optname = SO_RCVBUF;
2252 goto int_case;
2253 case TARGET_SO_KEEPALIVE:
2254 optname = SO_KEEPALIVE;
2255 goto int_case;
2256 case TARGET_SO_OOBINLINE:
2257 optname = SO_OOBINLINE;
2258 goto int_case;
2259 case TARGET_SO_NO_CHECK:
2260 optname = SO_NO_CHECK;
2261 goto int_case;
2262 case TARGET_SO_PRIORITY:
2263 optname = SO_PRIORITY;
2264 goto int_case;
2265#ifdef SO_BSDCOMPAT
2266 case TARGET_SO_BSDCOMPAT:
2267 optname = SO_BSDCOMPAT;
2268 goto int_case;
2269#endif
2270 case TARGET_SO_PASSCRED:
2271 optname = SO_PASSCRED;
2272 goto int_case;
2273 case TARGET_SO_TIMESTAMP:
2274 optname = SO_TIMESTAMP;
2275 goto int_case;
2276 case TARGET_SO_RCVLOWAT:
2277 optname = SO_RCVLOWAT;
2278 goto int_case;
aec1ca41
PB		 2279 case TARGET_SO_ACCEPTCONN:
2280 optname = SO_ACCEPTCONN;
2281 goto int_case;
8853f86e 2282 default:
2efbe911
FB		 2283 goto int_case;
2284 }
2285 break;
2286 case SOL_TCP:
2287 /* TCP options all take an 'int' value. */
2288 int_case:
2f619698
FB		 2289 if (get_user_u32(len, optlen))
2290 return -TARGET_EFAULT;
2efbe911 2291 if (len < 0)
0da46a6e 2292 return -TARGET_EINVAL;
73160d95 2293 lv = sizeof(lv);
2efbe911
FB		 2294 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
2295 if (ret < 0)
2296 return ret;
8289d112
PB		 2297 if (optname == SO_TYPE) {
2298 val = host_to_target_sock_type(val);
2299 }
2efbe911
FB		 2300 if (len > lv)
2301 len = lv;
2f619698
FB		 2302 if (len == 4) {
2303 if (put_user_u32(val, optval_addr))
2304 return -TARGET_EFAULT;
2305 } else {
2306 if (put_user_u8(val, optval_addr))
2307 return -TARGET_EFAULT;
f3b974cd 2308 }
2f619698
FB		 2309 if (put_user_u32(len, optlen))
2310 return -TARGET_EFAULT;
2efbe911
FB		 2311 break;
2312 case SOL_IP:
2313 switch(optname) {
2314 case IP_TOS:
2315 case IP_TTL:
2316 case IP_HDRINCL:
2317 case IP_ROUTER_ALERT:
2318 case IP_RECVOPTS:
2319 case IP_RETOPTS:
2320 case IP_PKTINFO:
2321 case IP_MTU_DISCOVER:
2322 case IP_RECVERR:
2323 case IP_RECVTOS:
2324#ifdef IP_FREEBIND
2325 case IP_FREEBIND:
2326#endif
2327 case IP_MULTICAST_TTL:
2328 case IP_MULTICAST_LOOP:
2f619698
FB		 2329 if (get_user_u32(len, optlen))
2330 return -TARGET_EFAULT;
8853f86e 2331 if (len < 0)
0da46a6e 2332 return -TARGET_EINVAL;
73160d95 2333 lv = sizeof(lv);
8853f86e
FB		 2334 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
2335 if (ret < 0)
2336 return ret;
2efbe911 2337 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
2efbe911 2338 len = 1;
2f619698
FB		 2339 if (put_user_u32(len, optlen)
2340 || put_user_u8(val, optval_addr))
2341 return -TARGET_EFAULT;
2efbe911 2342 } else {
2efbe911
FB		 2343 if (len > sizeof(int))
2344 len = sizeof(int);
2f619698
FB		 2345 if (put_user_u32(len, optlen)
2346 || put_user_u32(val, optval_addr))
2347 return -TARGET_EFAULT;
2efbe911 2348 }
8853f86e 2349 break;
2efbe911 2350 default:
c02f499e
TS		 2351 ret = -TARGET_ENOPROTOOPT;
2352 break;
8853f86e
FB		 2353 }
2354 break;
bd8ed485
TD		 2355 case SOL_IPV6:
2356 switch (optname) {
2357 case IPV6_MTU_DISCOVER:
2358 case IPV6_MTU:
2359 case IPV6_V6ONLY:
2360 case IPV6_RECVPKTINFO:
2361 case IPV6_UNICAST_HOPS:
2362 case IPV6_MULTICAST_HOPS:
2363 case IPV6_MULTICAST_LOOP:
2364 case IPV6_RECVERR:
2365 case IPV6_RECVHOPLIMIT:
2366 case IPV6_2292HOPLIMIT:
2367 case IPV6_CHECKSUM:
2368 if (get_user_u32(len, optlen))
2369 return -TARGET_EFAULT;
2370 if (len < 0)
2371 return -TARGET_EINVAL;
2372 lv = sizeof(lv);
2373 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
2374 if (ret < 0)
2375 return ret;
2376 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
2377 len = 1;
2378 if (put_user_u32(len, optlen)
2379 || put_user_u8(val, optval_addr))
2380 return -TARGET_EFAULT;
2381 } else {
2382 if (len > sizeof(int))
2383 len = sizeof(int);
2384 if (put_user_u32(len, optlen)
2385 || put_user_u32(val, optval_addr))
2386 return -TARGET_EFAULT;
2387 }
2388 break;
2389 default:
2390 ret = -TARGET_ENOPROTOOPT;
2391 break;
2392 }
2393 break;
8853f86e
FB		 2394 default:
2395 unimplemented:
2396 gemu_log("getsockopt level=%d optname=%d not yet supported\n",
2397 level, optname);
c02f499e 2398 ret = -TARGET_EOPNOTSUPP;
8853f86e
FB		 2399 break;
2400 }
2401 return ret;
7854b056
FB		 2402}
2403
9ac22517
MF		 2404/* Convert target low/high pair representing file offset into the host
2405 * low/high pair. This function doesn't handle offsets bigger than 64 bits
2406 * as the kernel doesn't handle them either.
2407 */
2408static void target_to_host_low_high(abi_ulong tlow,
2409 abi_ulong thigh,
2410 unsigned long *hlow,
2411 unsigned long *hhigh)
2412{
2413 uint64_t off = tlow |
2414 ((unsigned long long)thigh << TARGET_LONG_BITS / 2) <<
2415 TARGET_LONG_BITS / 2;
2416
2417 *hlow = off;
2418 *hhigh = (off >> HOST_LONG_BITS / 2) >> HOST_LONG_BITS / 2;
2419}
2420
f287b2c2 2421static struct iovec *lock_iovec(int type, abi_ulong target_addr,
dab32b32 2422 abi_ulong count, int copy)
53a5960a
PB		 2423{
2424 struct target_iovec *target_vec;
f287b2c2
RH		 2425 struct iovec *vec;
2426 abi_ulong total_len, max_len;
d732dcb4 2427 int i;
501bb4b0 2428 int err = 0;
29560a6c 2429 bool bad_address = false;
53a5960a 2430
f287b2c2
RH		 2431 if (count == 0) {
2432 errno = 0;
2433 return NULL;
2434 }
dab32b32 2435 if (count > IOV_MAX) {
f287b2c2
RH		 2436 errno = EINVAL;
2437 return NULL;
2438 }
2439
0e173b24 2440 vec = g_try_new0(struct iovec, count);
f287b2c2
RH		 2441 if (vec == NULL) {
2442 errno = ENOMEM;
2443 return NULL;
2444 }
2445
2446 target_vec = lock_user(VERIFY_READ, target_addr,
2447 count * sizeof(struct target_iovec), 1);
2448 if (target_vec == NULL) {
501bb4b0 2449 err = EFAULT;
f287b2c2
RH		 2450 goto fail2;
2451 }
2452
2453 /* ??? If host page size > target page size, this will result in a
2454 value larger than what we can actually support. */
2455 max_len = 0x7fffffff & TARGET_PAGE_MASK;
2456 total_len = 0;
2457
2458 for (i = 0; i < count; i++) {
2459 abi_ulong base = tswapal(target_vec[i].iov_base);
2460 abi_long len = tswapal(target_vec[i].iov_len);
2461
2462 if (len < 0) {
501bb4b0 2463 err = EINVAL;
f287b2c2
RH		 2464 goto fail;
2465 } else if (len == 0) {
2466 /* Zero length pointer is ignored. */
2467 vec[i].iov_base = 0;
41df8411 2468 } else {
f287b2c2 2469 vec[i].iov_base = lock_user(type, base, len, copy);
29560a6c
TM		 2470 /* If the first buffer pointer is bad, this is a fault. But
2471 * subsequent bad buffers will result in a partial write; this
2472 * is realized by filling the vector with null pointers and
2473 * zero lengths. */
f287b2c2 2474 if (!vec[i].iov_base) {
29560a6c
TM		 2475 if (i == 0) {
2476 err = EFAULT;
2477 goto fail;
2478 } else {
2479 bad_address = true;
2480 }
2481 }
2482 if (bad_address) {
2483 len = 0;
f287b2c2
RH		 2484 }
2485 if (len > max_len - total_len) {
2486 len = max_len - total_len;
2487 }
41df8411 2488 }
f287b2c2
RH		 2489 vec[i].iov_len = len;
2490 total_len += len;
579a97f7 2491 }
f287b2c2
RH		 2492
2493 unlock_user(target_vec, target_addr, 0);
2494 return vec;
2495
2496 fail:
7eff518b
CG		 2497 while (--i >= 0) {
2498 if (tswapal(target_vec[i].iov_len) > 0) {
2499 unlock_user(vec[i].iov_base, tswapal(target_vec[i].iov_base), 0);
2500 }
2501 }
f287b2c2 2502 unlock_user(target_vec, target_addr, 0);
501bb4b0 2503 fail2:
0e173b24 2504 g_free(vec);
501bb4b0 2505 errno = err;
f287b2c2 2506 return NULL;
53a5960a
PB		 2507}
2508
f287b2c2 2509static void unlock_iovec(struct iovec *vec, abi_ulong target_addr,
dab32b32 2510 abi_ulong count, int copy)
53a5960a
PB		 2511{
2512 struct target_iovec *target_vec;
53a5960a
PB		 2513 int i;
2514
f287b2c2
RH		 2515 target_vec = lock_user(VERIFY_READ, target_addr,
2516 count * sizeof(struct target_iovec), 1);
2517 if (target_vec) {
2518 for (i = 0; i < count; i++) {
2519 abi_ulong base = tswapal(target_vec[i].iov_base);
71ec7cef 2520 abi_long len = tswapal(target_vec[i].iov_len);
f287b2c2
RH		 2521 if (len < 0) {
2522 break;
2523 }
d732dcb4
AZ		 2524 unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
2525 }
f287b2c2 2526 unlock_user(target_vec, target_addr, 0);
53a5960a 2527 }
579a97f7 2528
0e173b24 2529 g_free(vec);
53a5960a
PB		 2530}
2531
53d09b76 2532static inline int target_to_host_sock_type(int *type)
3532fa74 2533{
f651e6ae
PJ		 2534 int host_type = 0;
2535 int target_type = *type;
2536
2537 switch (target_type & TARGET_SOCK_TYPE_MASK) {
3532fa74 2538 case TARGET_SOCK_DGRAM:
f651e6ae 2539 host_type = SOCK_DGRAM;
3532fa74
FB		 2540 break;
2541 case TARGET_SOCK_STREAM:
f651e6ae 2542 host_type = SOCK_STREAM;
3532fa74 2543 break;
f651e6ae
PJ		 2544 default:
2545 host_type = target_type & TARGET_SOCK_TYPE_MASK;
3532fa74
FB		 2546 break;
2547 }
f651e6ae 2548 if (target_type & TARGET_SOCK_CLOEXEC) {
53d09b76 2549#if defined(SOCK_CLOEXEC)
f651e6ae 2550 host_type |= SOCK_CLOEXEC;
53d09b76
EI		 2551#else
2552 return -TARGET_EINVAL;
2553#endif
f651e6ae
PJ		 2554 }
2555 if (target_type & TARGET_SOCK_NONBLOCK) {
53d09b76 2556#if defined(SOCK_NONBLOCK)
f651e6ae 2557 host_type |= SOCK_NONBLOCK;
53d09b76
EI		 2558#elif !defined(O_NONBLOCK)
2559 return -TARGET_EINVAL;
2560#endif
f651e6ae
PJ		 2561 }
2562 *type = host_type;
53d09b76
EI		 2563 return 0;
2564}
2565
2566/* Try to emulate socket type flags after socket creation. */
2567static int sock_flags_fixup(int fd, int target_type)
2568{
2569#if !defined(SOCK_NONBLOCK) && defined(O_NONBLOCK)
2570 if (target_type & TARGET_SOCK_NONBLOCK) {
2571 int flags = fcntl(fd, F_GETFL);
2572 if (fcntl(fd, F_SETFL, O_NONBLOCK | flags) == -1) {
2573 close(fd);
2574 return -TARGET_EINVAL;
2575 }
2576 }
2577#endif
2578 return fd;
f651e6ae
PJ		 2579}
2580
2581/* do_socket() Must return target values and target errnos. */
2582static abi_long do_socket(int domain, int type, int protocol)
2583{
53d09b76
EI		 2584 int target_type = type;
2585 int ret;
2586
2587 ret = target_to_host_sock_type(&type);
2588 if (ret) {
2589 return ret;
2590 }
f651e6ae 2591
575b22b1
LV		 2592 if (domain == PF_NETLINK && !(
2593#ifdef CONFIG_RTNETLINK
2594 protocol == NETLINK_ROUTE ||
2595#endif
2596 protocol == NETLINK_KOBJECT_UEVENT ||
2597 protocol == NETLINK_AUDIT)) {
6c5b5645
LV		 2598 return -EPFNOSUPPORT;
2599 }
ff626f2d
LV		 2600
2601 if (domain == AF_PACKET ||
2602 (domain == AF_INET && type == SOCK_PACKET)) {
2603 protocol = tswap16(protocol);
2604 }
2605
53d09b76
EI		 2606 ret = get_errno(socket(domain, type, protocol));
2607 if (ret >= 0) {
2608 ret = sock_flags_fixup(ret, target_type);
0cf22722
LV		 2609 if (type == SOCK_PACKET) {
2610 /* Manage an obsolete case :
2611 * if socket type is SOCK_PACKET, bind by name
2612 */
2613 fd_trans_register(ret, &target_packet_trans);
6c5b5645
LV		 2614 } else if (domain == PF_NETLINK) {
2615 switch (protocol) {
575b22b1 2616#ifdef CONFIG_RTNETLINK
6c5b5645
LV		 2617 case NETLINK_ROUTE:
2618 fd_trans_register(ret, &target_netlink_route_trans);
2619 break;
575b22b1 2620#endif
b265620b
LV		 2621 case NETLINK_KOBJECT_UEVENT:
2622 /* nothing to do: messages are strings */
2623 break;
5ce9bb59
LV		 2624 case NETLINK_AUDIT:
2625 fd_trans_register(ret, &target_netlink_audit_trans);
2626 break;
6c5b5645
LV		 2627 default:
2628 g_assert_not_reached();
2629 }
0cf22722 2630 }
53d09b76
EI		 2631 }
2632 return ret;
3532fa74
FB		 2633}
2634
0da46a6e 2635/* do_bind() Must return target values and target errnos. */
992f48a0
BS		 2636static abi_long do_bind(int sockfd, abi_ulong target_addr,
2637 socklen_t addrlen)
3532fa74 2638{
8f7aeaf6 2639 void *addr;
917507b0 2640 abi_long ret;
8f7aeaf6 2641
38724253 2642 if ((int)addrlen < 0) {
8f7aeaf6 2643 return -TARGET_EINVAL;
38724253 2644 }
8f7aeaf6 2645
607175e0 2646 addr = alloca(addrlen+1);
3b46e624 2647
7b36f782 2648 ret = target_to_host_sockaddr(sockfd, addr, target_addr, addrlen);
917507b0
AP		 2649 if (ret)
2650 return ret;
2651
3532fa74
FB		 2652 return get_errno(bind(sockfd, addr, addrlen));
2653}
2654
0da46a6e 2655/* do_connect() Must return target values and target errnos. */
992f48a0
BS		 2656static abi_long do_connect(int sockfd, abi_ulong target_addr,
2657 socklen_t addrlen)
3532fa74 2658{
8f7aeaf6 2659 void *addr;
917507b0 2660 abi_long ret;
8f7aeaf6 2661
38724253 2662 if ((int)addrlen < 0) {
8f7aeaf6 2663 return -TARGET_EINVAL;
38724253 2664 }
8f7aeaf6 2665
2dd08dfd 2666 addr = alloca(addrlen+1);
3b46e624 2667
7b36f782 2668 ret = target_to_host_sockaddr(sockfd, addr, target_addr, addrlen);
917507b0
AP		 2669 if (ret)
2670 return ret;
2671
2a3c7619 2672 return get_errno(safe_connect(sockfd, addr, addrlen));
3532fa74
FB		 2673}
2674
f19e00d7
AG		 2675/* do_sendrecvmsg_locked() Must return target values and target errnos. */
2676static abi_long do_sendrecvmsg_locked(int fd, struct target_msghdr *msgp,
2677 int flags, int send)
3532fa74 2678{
6de645c7 2679 abi_long ret, len;
3532fa74 2680 struct msghdr msg;
dab32b32 2681 abi_ulong count;
3532fa74 2682 struct iovec *vec;
992f48a0 2683 abi_ulong target_vec;
3532fa74 2684
3532fa74
FB		 2685 if (msgp->msg_name) {
2686 msg.msg_namelen = tswap32(msgp->msg_namelen);
2dd08dfd 2687 msg.msg_name = alloca(msg.msg_namelen+1);
7b36f782
LV		 2688 ret = target_to_host_sockaddr(fd, msg.msg_name,
2689 tswapal(msgp->msg_name),
2690 msg.msg_namelen);
26a6fc96
PM		 2691 if (ret == -TARGET_EFAULT) {
2692 /* For connected sockets msg_name and msg_namelen must
2693 * be ignored, so returning EFAULT immediately is wrong.
2694 * Instead, pass a bad msg_name to the host kernel, and
2695 * let it decide whether to return EFAULT or not.
2696 */
2697 msg.msg_name = (void *)-1;
2698 } else if (ret) {
f287b2c2 2699 goto out2;
917507b0 2700 }
3532fa74
FB		 2701 } else {
2702 msg.msg_name = NULL;
2703 msg.msg_namelen = 0;
2704 }
cbb21eed 2705 msg.msg_controllen = 2 * tswapal(msgp->msg_controllen);
3532fa74 2706 msg.msg_control = alloca(msg.msg_controllen);
1d3d1b23
JS		 2707 memset(msg.msg_control, 0, msg.msg_controllen);
2708
3532fa74 2709 msg.msg_flags = tswap32(msgp->msg_flags);
3b46e624 2710
cbb21eed 2711 count = tswapal(msgp->msg_iovlen);
cbb21eed 2712 target_vec = tswapal(msgp->msg_iov);
97b07970
PM		 2713
2714 if (count > IOV_MAX) {
2715 /* sendrcvmsg returns a different errno for this condition than
2716 * readv/writev, so we must catch it here before lock_iovec() does.
2717 */
2718 ret = -TARGET_EMSGSIZE;
2719 goto out2;
2720 }
2721
f287b2c2
RH		 2722 vec = lock_iovec(send ? VERIFY_READ : VERIFY_WRITE,
2723 target_vec, count, send);
2724 if (vec == NULL) {
2725 ret = -host_to_target_errno(errno);
2726 goto out2;
2727 }
3532fa74
FB		 2728 msg.msg_iovlen = count;
2729 msg.msg_iov = vec;
3b46e624 2730
3532fa74 2731 if (send) {
6c5b5645 2732 if (fd_trans_target_to_host_data(fd)) {
7d61d892
LV		 2733 void *host_msg;
2734
2735 host_msg = g_malloc(msg.msg_iov->iov_len);
2736 memcpy(host_msg, msg.msg_iov->iov_base, msg.msg_iov->iov_len);
2737 ret = fd_trans_target_to_host_data(fd)(host_msg,
6c5b5645 2738 msg.msg_iov->iov_len);
7d61d892
LV		 2739 if (ret >= 0) {
2740 msg.msg_iov->iov_base = host_msg;
2741 ret = get_errno(safe_sendmsg(fd, &msg, flags));
2742 }
2743 g_free(host_msg);
6c5b5645
LV		 2744 } else {
2745 ret = target_to_host_cmsg(&msg, msgp);
7d61d892
LV		 2746 if (ret == 0) {
2747 ret = get_errno(safe_sendmsg(fd, &msg, flags));
2748 }
6c5b5645 2749 }
3532fa74 2750 } else {
66687530 2751 ret = get_errno(safe_recvmsg(fd, &msg, flags));
6de645c7
AZ		 2752 if (!is_error(ret)) {
2753 len = ret;
6c5b5645
LV		 2754 if (fd_trans_host_to_target_data(fd)) {
2755 ret = fd_trans_host_to_target_data(fd)(msg.msg_iov->iov_base,
2a03d3e6 2756 MIN(msg.msg_iov->iov_len, len));
6c5b5645
LV		 2757 } else {
2758 ret = host_to_target_cmsg(msgp, &msg);
2759 }
ca619067
JH		 2760 if (!is_error(ret)) {
2761 msgp->msg_namelen = tswap32(msg.msg_namelen);
24894f39 2762 msgp->msg_flags = tswap32(msg.msg_flags);
26a6fc96 2763 if (msg.msg_name != NULL && msg.msg_name != (void *)-1) {
ca619067
JH		 2764 ret = host_to_target_sockaddr(tswapal(msgp->msg_name),
2765 msg.msg_name, msg.msg_namelen);
2766 if (ret) {
2767 goto out;
2768 }
2769 }
2770
6de645c7 2771 ret = len;
ca619067 2772 }
6de645c7 2773 }
3532fa74 2774 }
ca619067
JH		 2775
2776out:
3532fa74 2777 unlock_iovec(vec, target_vec, count, !send);
f287b2c2 2778out2:
f19e00d7
AG		 2779 return ret;
2780}
2781
2782static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg,
2783 int flags, int send)
2784{
2785 abi_long ret;
2786 struct target_msghdr *msgp;
2787
2788 if (!lock_user_struct(send ? VERIFY_READ : VERIFY_WRITE,
2789 msgp,
2790 target_msg,
2791 send ? 1 : 0)) {
2792 return -TARGET_EFAULT;
2793 }
2794 ret = do_sendrecvmsg_locked(fd, msgp, flags, send);
579a97f7 2795 unlock_user_struct(msgp, target_msg, send ? 0 : 1);
3532fa74
FB		 2796 return ret;
2797}
2798
f19e00d7
AG		 2799/* We don't rely on the C library to have sendmmsg/recvmmsg support,
2800 * so it might not have this *mmsg-specific flag either.
2801 */
2802#ifndef MSG_WAITFORONE
2803#define MSG_WAITFORONE 0x10000
2804#endif
2805
2806static abi_long do_sendrecvmmsg(int fd, abi_ulong target_msgvec,
2807 unsigned int vlen, unsigned int flags,
2808 int send)
2809{
2810 struct target_mmsghdr *mmsgp;
2811 abi_long ret = 0;
2812 int i;
2813
2814 if (vlen > UIO_MAXIOV) {
2815 vlen = UIO_MAXIOV;
2816 }
2817
2818 mmsgp = lock_user(VERIFY_WRITE, target_msgvec, sizeof(*mmsgp) * vlen, 1);
2819 if (!mmsgp) {
2820 return -TARGET_EFAULT;
2821 }
2822
2823 for (i = 0; i < vlen; i++) {
2824 ret = do_sendrecvmsg_locked(fd, &mmsgp[i].msg_hdr, flags, send);
2825 if (is_error(ret)) {
2826 break;
2827 }
2828 mmsgp[i].msg_len = tswap32(ret);
2829 /* MSG_WAITFORONE turns on MSG_DONTWAIT after one packet */
2830 if (flags & MSG_WAITFORONE) {
2831 flags |= MSG_DONTWAIT;
2832 }
2833 }
2834
2835 unlock_user(mmsgp, target_msgvec, sizeof(*mmsgp) * i);
2836
2837 /* Return number of datagrams sent if we sent any at all;
2838 * otherwise return the error.
2839 */
2840 if (i) {
2841 return i;
2842 }
2843 return ret;
2844}
f19e00d7 2845
a94b4987
PM		 2846/* do_accept4() Must return target values and target errnos. */
2847static abi_long do_accept4(int fd, abi_ulong target_addr,
2848 abi_ulong target_addrlen_addr, int flags)
1be9e1dc 2849{
cd813367 2850 socklen_t addrlen, ret_addrlen;
2f619698 2851 void *addr;
992f48a0 2852 abi_long ret;
d25295d4
PJ		 2853 int host_flags;
2854
2855 host_flags = target_to_host_bitmask(flags, fcntl_flags_tbl);
1be9e1dc 2856
a94b4987 2857 if (target_addr == 0) {
ff6dc130 2858 return get_errno(safe_accept4(fd, NULL, NULL, host_flags));
a94b4987 2859 }
917507b0
AP		 2860
2861 /* linux returns EINVAL if addrlen pointer is invalid */
2f619698 2862 if (get_user_u32(addrlen, target_addrlen_addr))
917507b0 2863 return -TARGET_EINVAL;
2f619698 2864
38724253 2865 if ((int)addrlen < 0) {
8f7aeaf6 2866 return -TARGET_EINVAL;
38724253 2867 }
8f7aeaf6 2868
917507b0
AP		 2869 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
2870 return -TARGET_EINVAL;
2871
2f619698
FB		 2872 addr = alloca(addrlen);
2873
cd813367
AS		 2874 ret_addrlen = addrlen;
2875 ret = get_errno(safe_accept4(fd, addr, &ret_addrlen, host_flags));
1be9e1dc 2876 if (!is_error(ret)) {
cd813367
AS		 2877 host_to_target_sockaddr(target_addr, addr, MIN(addrlen, ret_addrlen));
2878 if (put_user_u32(ret_addrlen, target_addrlen_addr)) {
2f619698 2879 ret = -TARGET_EFAULT;
cd813367 2880 }
1be9e1dc
PB		 2881 }
2882 return ret;
2883}
2884
0da46a6e 2885/* do_getpeername() Must return target values and target errnos. */
992f48a0 2886static abi_long do_getpeername(int fd, abi_ulong target_addr,
2f619698 2887 abi_ulong target_addrlen_addr)
1be9e1dc 2888{
cd813367 2889 socklen_t addrlen, ret_addrlen;
2f619698 2890 void *addr;
992f48a0 2891 abi_long ret;
1be9e1dc 2892
2f619698
FB		 2893 if (get_user_u32(addrlen, target_addrlen_addr))
2894 return -TARGET_EFAULT;
2895
38724253 2896 if ((int)addrlen < 0) {
8f7aeaf6 2897 return -TARGET_EINVAL;
38724253 2898 }
8f7aeaf6 2899
917507b0
AP		 2900 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
2901 return -TARGET_EFAULT;
2902
2f619698
FB		 2903 addr = alloca(addrlen);
2904
cd813367
AS		 2905 ret_addrlen = addrlen;
2906 ret = get_errno(getpeername(fd, addr, &ret_addrlen));
1be9e1dc 2907 if (!is_error(ret)) {
cd813367
AS		 2908 host_to_target_sockaddr(target_addr, addr, MIN(addrlen, ret_addrlen));
2909 if (put_user_u32(ret_addrlen, target_addrlen_addr)) {
2f619698 2910 ret = -TARGET_EFAULT;
cd813367 2911 }
1be9e1dc
PB		 2912 }
2913 return ret;
2914}
2915
0da46a6e 2916/* do_getsockname() Must return target values and target errnos. */
992f48a0 2917static abi_long do_getsockname(int fd, abi_ulong target_addr,
2f619698 2918 abi_ulong target_addrlen_addr)
1be9e1dc 2919{
cd813367 2920 socklen_t addrlen, ret_addrlen;
2f619698 2921 void *addr;
992f48a0 2922 abi_long ret;
1be9e1dc 2923
2f619698
FB		 2924 if (get_user_u32(addrlen, target_addrlen_addr))
2925 return -TARGET_EFAULT;
2926
38724253 2927 if ((int)addrlen < 0) {
8f7aeaf6 2928 return -TARGET_EINVAL;
38724253 2929 }
8f7aeaf6 2930
917507b0
AP		 2931 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
2932 return -TARGET_EFAULT;
2933
2f619698
FB		 2934 addr = alloca(addrlen);
2935
cd813367
AS		 2936 ret_addrlen = addrlen;
2937 ret = get_errno(getsockname(fd, addr, &ret_addrlen));
1be9e1dc 2938 if (!is_error(ret)) {
cd813367
AS		 2939 host_to_target_sockaddr(target_addr, addr, MIN(addrlen, ret_addrlen));
2940 if (put_user_u32(ret_addrlen, target_addrlen_addr)) {
2f619698 2941 ret = -TARGET_EFAULT;
cd813367 2942 }
1be9e1dc
PB		 2943 }
2944 return ret;
2945}
2946
0da46a6e 2947/* do_socketpair() Must return target values and target errnos. */
992f48a0 2948static abi_long do_socketpair(int domain, int type, int protocol,
2f619698 2949 abi_ulong target_tab_addr)
1be9e1dc
PB		 2950{
2951 int tab[2];
992f48a0 2952 abi_long ret;
1be9e1dc 2953
f651e6ae
PJ		 2954 target_to_host_sock_type(&type);
2955
1be9e1dc
PB		 2956 ret = get_errno(socketpair(domain, type, protocol, tab));
2957 if (!is_error(ret)) {
2f619698
FB		 2958 if (put_user_s32(tab[0], target_tab_addr)
2959 || put_user_s32(tab[1], target_tab_addr + sizeof(tab[0])))
2960 ret = -TARGET_EFAULT;
1be9e1dc
PB		 2961 }
2962 return ret;
2963}
2964
0da46a6e 2965/* do_sendto() Must return target values and target errnos. */
992f48a0
BS		 2966static abi_long do_sendto(int fd, abi_ulong msg, size_t len, int flags,
2967 abi_ulong target_addr, socklen_t addrlen)
1be9e1dc
PB		 2968{
2969 void *addr;
2970 void *host_msg;
7d61d892 2971 void *copy_msg = NULL;
992f48a0 2972 abi_long ret;
1be9e1dc 2973
38724253 2974 if ((int)addrlen < 0) {
8f7aeaf6 2975 return -TARGET_EINVAL;
38724253 2976 }
8f7aeaf6 2977
579a97f7
FB		 2978 host_msg = lock_user(VERIFY_READ, msg, len, 1);
2979 if (!host_msg)
2980 return -TARGET_EFAULT;
6c5b5645 2981 if (fd_trans_target_to_host_data(fd)) {
7d61d892
LV		 2982 copy_msg = host_msg;
2983 host_msg = g_malloc(len);
2984 memcpy(host_msg, copy_msg, len);
6c5b5645
LV		 2985 ret = fd_trans_target_to_host_data(fd)(host_msg, len);
2986 if (ret < 0) {
7d61d892 2987 goto fail;
6c5b5645
LV		 2988 }
2989 }
1be9e1dc 2990 if (target_addr) {
2dd08dfd 2991 addr = alloca(addrlen+1);
7b36f782 2992 ret = target_to_host_sockaddr(fd, addr, target_addr, addrlen);
917507b0 2993 if (ret) {
7d61d892 2994 goto fail;
917507b0 2995 }
66687530 2996 ret = get_errno(safe_sendto(fd, host_msg, len, flags, addr, addrlen));
1be9e1dc 2997 } else {
66687530 2998 ret = get_errno(safe_sendto(fd, host_msg, len, flags, NULL, 0));
1be9e1dc 2999 }
7d61d892
LV		 3000fail:
3001 if (copy_msg) {
3002 g_free(host_msg);
3003 host_msg = copy_msg;
3004 }
1be9e1dc
PB		 3005 unlock_user(host_msg, msg, 0);
3006 return ret;
3007}
3008
0da46a6e 3009/* do_recvfrom() Must return target values and target errnos. */
992f48a0
BS		 3010static abi_long do_recvfrom(int fd, abi_ulong msg, size_t len, int flags,
3011 abi_ulong target_addr,
3012 abi_ulong target_addrlen)
1be9e1dc 3013{
cd813367 3014 socklen_t addrlen, ret_addrlen;
1be9e1dc
PB		 3015 void *addr;
3016 void *host_msg;
992f48a0 3017 abi_long ret;
1be9e1dc 3018
579a97f7
FB		 3019 host_msg = lock_user(VERIFY_WRITE, msg, len, 0);
3020 if (!host_msg)
3021 return -TARGET_EFAULT;
1be9e1dc 3022 if (target_addr) {
2f619698
FB		 3023 if (get_user_u32(addrlen, target_addrlen)) {
3024 ret = -TARGET_EFAULT;
3025 goto fail;
3026 }
38724253 3027 if ((int)addrlen < 0) {
8f7aeaf6
AJ		 3028 ret = -TARGET_EINVAL;
3029 goto fail;
3030 }
1be9e1dc 3031 addr = alloca(addrlen);
cd813367 3032 ret_addrlen = addrlen;
66687530 3033 ret = get_errno(safe_recvfrom(fd, host_msg, len, flags,
cd813367 3034 addr, &ret_addrlen));
1be9e1dc
PB		 3035 } else {
3036 addr = NULL; /* To keep compiler quiet. */
cd813367 3037 addrlen = 0; /* To keep compiler quiet. */
66687530 3038 ret = get_errno(safe_recvfrom(fd, host_msg, len, flags, NULL, 0));
1be9e1dc
PB		 3039 }
3040 if (!is_error(ret)) {
c35e1f9c 3041 if (fd_trans_host_to_target_data(fd)) {
2a03d3e6
LV		 3042 abi_long trans;
3043 trans = fd_trans_host_to_target_data(fd)(host_msg, MIN(ret, len));
3044 if (is_error(trans)) {
3045 ret = trans;
3046 goto fail;
3047 }
c35e1f9c 3048 }
1be9e1dc 3049 if (target_addr) {
cd813367
AS		 3050 host_to_target_sockaddr(target_addr, addr,
3051 MIN(addrlen, ret_addrlen));
3052 if (put_user_u32(ret_addrlen, target_addrlen)) {
2f619698
FB		 3053 ret = -TARGET_EFAULT;
3054 goto fail;
3055 }
1be9e1dc
PB		 3056 }
3057 unlock_user(host_msg, msg, len);
3058 } else {
2f619698 3059fail:
1be9e1dc
PB		 3060 unlock_user(host_msg, msg, 0);
3061 }
3062 return ret;
3063}
3064
32407103 3065#ifdef TARGET_NR_socketcall
ff71a454 3066/* do_socketcall() must return target values and target errnos. */
992f48a0 3067static abi_long do_socketcall(int num, abi_ulong vptr)
31e31b8a 3068{
ff71a454
AM		 3069 static const unsigned nargs[] = { /* number of arguments per operation */
3070 [TARGET_SYS_SOCKET] = 3, /* domain, type, protocol */
3071 [TARGET_SYS_BIND] = 3, /* fd, addr, addrlen */
3072 [TARGET_SYS_CONNECT] = 3, /* fd, addr, addrlen */
3073 [TARGET_SYS_LISTEN] = 2, /* fd, backlog */
3074 [TARGET_SYS_ACCEPT] = 3, /* fd, addr, addrlen */
3075 [TARGET_SYS_GETSOCKNAME] = 3, /* fd, addr, addrlen */
3076 [TARGET_SYS_GETPEERNAME] = 3, /* fd, addr, addrlen */
3077 [TARGET_SYS_SOCKETPAIR] = 4, /* domain, type, protocol, tab */
3078 [TARGET_SYS_SEND] = 4, /* fd, msg, len, flags */
3079 [TARGET_SYS_RECV] = 4, /* fd, msg, len, flags */
3080 [TARGET_SYS_SENDTO] = 6, /* fd, msg, len, flags, addr, addrlen */
3081 [TARGET_SYS_RECVFROM] = 6, /* fd, msg, len, flags, addr, addrlen */
3082 [TARGET_SYS_SHUTDOWN] = 2, /* fd, how */
3083 [TARGET_SYS_SETSOCKOPT] = 5, /* fd, level, optname, optval, optlen */
3084 [TARGET_SYS_GETSOCKOPT] = 5, /* fd, level, optname, optval, optlen */
3085 [TARGET_SYS_SENDMSG] = 3, /* fd, msg, flags */
3086 [TARGET_SYS_RECVMSG] = 3, /* fd, msg, flags */
3087 [TARGET_SYS_ACCEPT4] = 4, /* fd, addr, addrlen, flags */
3088 [TARGET_SYS_RECVMMSG] = 4, /* fd, msgvec, vlen, flags */
3089 [TARGET_SYS_SENDMMSG] = 4, /* fd, msgvec, vlen, flags */
62dc90c6
MT		 3090 };
3091 abi_long a[6]; /* max 6 args */
ff71a454 3092 unsigned i;
62dc90c6 3093
ff71a454
AM		 3094 /* check the range of the first argument num */
3095 /* (TARGET_SYS_SENDMMSG is the highest among TARGET_SYS_xxx) */
3096 if (num < 1 || num > TARGET_SYS_SENDMMSG) {
3097 return -TARGET_EINVAL;
3098 }
3099 /* ensure we have space for args */
3100 if (nargs[num] > ARRAY_SIZE(a)) {
3101 return -TARGET_EINVAL;
3102 }
3103 /* collect the arguments in a[] according to nargs[] */
3104 for (i = 0; i < nargs[num]; ++i) {
3105 if (get_user_ual(a[i], vptr + i * sizeof(abi_long)) != 0) {
3106 return -TARGET_EFAULT;
31e31b8a 3107 }
62dc90c6 3108 }
ff71a454 3109 /* now when we have the args, invoke the appropriate underlying function */
62dc90c6 3110 switch (num) {
ff71a454 3111 case TARGET_SYS_SOCKET: /* domain, type, protocol */
62dc90c6 3112 return do_socket(a[0], a[1], a[2]);
ff71a454 3113 case TARGET_SYS_BIND: /* sockfd, addr, addrlen */
62dc90c6 3114 return do_bind(a[0], a[1], a[2]);
ff71a454 3115 case TARGET_SYS_CONNECT: /* sockfd, addr, addrlen */
62dc90c6 3116 return do_connect(a[0], a[1], a[2]);
ff71a454 3117 case TARGET_SYS_LISTEN: /* sockfd, backlog */
62dc90c6 3118 return get_errno(listen(a[0], a[1]));
ff71a454 3119 case TARGET_SYS_ACCEPT: /* sockfd, addr, addrlen */
62dc90c6 3120 return do_accept4(a[0], a[1], a[2], 0);
ff71a454 3121 case TARGET_SYS_GETSOCKNAME: /* sockfd, addr, addrlen */
62dc90c6 3122 return do_getsockname(a[0], a[1], a[2]);
ff71a454 3123 case TARGET_SYS_GETPEERNAME: /* sockfd, addr, addrlen */
62dc90c6 3124 return do_getpeername(a[0], a[1], a[2]);
ff71a454 3125 case TARGET_SYS_SOCKETPAIR: /* domain, type, protocol, tab */
62dc90c6 3126 return do_socketpair(a[0], a[1], a[2], a[3]);
ff71a454 3127 case TARGET_SYS_SEND: /* sockfd, msg, len, flags */
62dc90c6 3128 return do_sendto(a[0], a[1], a[2], a[3], 0, 0);
ff71a454 3129 case TARGET_SYS_RECV: /* sockfd, msg, len, flags */
62dc90c6 3130 return do_recvfrom(a[0], a[1], a[2], a[3], 0, 0);
ff71a454 3131 case TARGET_SYS_SENDTO: /* sockfd, msg, len, flags, addr, addrlen */
62dc90c6 3132 return do_sendto(a[0], a[1], a[2], a[3], a[4], a[5]);
ff71a454 3133 case TARGET_SYS_RECVFROM: /* sockfd, msg, len, flags, addr, addrlen */
62dc90c6 3134 return do_recvfrom(a[0], a[1], a[2], a[3], a[4], a[5]);
ff71a454 3135 case TARGET_SYS_SHUTDOWN: /* sockfd, how */
62dc90c6 3136 return get_errno(shutdown(a[0], a[1]));
ff71a454
AM		 3137 case TARGET_SYS_SETSOCKOPT: /* sockfd, level, optname, optval, optlen */
3138 return do_setsockopt(a[0], a[1], a[2], a[3], a[4]);
3139 case TARGET_SYS_GETSOCKOPT: /* sockfd, level, optname, optval, optlen */
3140 return do_getsockopt(a[0], a[1], a[2], a[3], a[4]);
3141 case TARGET_SYS_SENDMSG: /* sockfd, msg, flags */
62dc90c6 3142 return do_sendrecvmsg(a[0], a[1], a[2], 1);
ff71a454 3143 case TARGET_SYS_RECVMSG: /* sockfd, msg, flags */
62dc90c6 3144 return do_sendrecvmsg(a[0], a[1], a[2], 0);
ff71a454
AM		 3145 case TARGET_SYS_ACCEPT4: /* sockfd, addr, addrlen, flags */
3146 return do_accept4(a[0], a[1], a[2], a[3]);
3147 case TARGET_SYS_RECVMMSG: /* sockfd, msgvec, vlen, flags */
5a53dc50 3148 return do_sendrecvmmsg(a[0], a[1], a[2], a[3], 0);
ff71a454
AM		 3149 case TARGET_SYS_SENDMMSG: /* sockfd, msgvec, vlen, flags */
3150 return do_sendrecvmmsg(a[0], a[1], a[2], a[3], 1);
31e31b8a
FB		 3151 default:
3152 gemu_log("Unsupported socketcall: %d\n", num);
ff71a454 3153 return -TARGET_EINVAL;
31e31b8a 3154 }
31e31b8a 3155}
32407103 3156#endif
31e31b8a 3157
8853f86e
FB		 3158#define N_SHM_REGIONS 32
3159
3160static struct shm_region {
b6e17875
PM		 3161 abi_ulong start;
3162 abi_ulong size;
3163 bool in_use;
8853f86e
FB		 3164} shm_regions[N_SHM_REGIONS];
3165
005eb2ae
PM		 3166#ifndef TARGET_SEMID64_DS
3167/* asm-generic version of this struct */
3168struct target_semid64_ds
3eb6b044
TS		 3169{
3170 struct target_ipc_perm sem_perm;
992f48a0 3171 abi_ulong sem_otime;
005eb2ae 3172#if TARGET_ABI_BITS == 32
992f48a0 3173 abi_ulong __unused1;
03527344 3174#endif
992f48a0 3175 abi_ulong sem_ctime;
005eb2ae 3176#if TARGET_ABI_BITS == 32
992f48a0 3177 abi_ulong __unused2;
03527344 3178#endif
992f48a0
BS		 3179 abi_ulong sem_nsems;
3180 abi_ulong __unused3;
3181 abi_ulong __unused4;
3eb6b044 3182};
005eb2ae 3183#endif
3eb6b044 3184
579a97f7
FB		 3185static inline abi_long target_to_host_ipc_perm(struct ipc_perm *host_ip,
3186 abi_ulong target_addr)
3eb6b044
TS		 3187{
3188 struct target_ipc_perm *target_ip;
005eb2ae 3189 struct target_semid64_ds *target_sd;
3eb6b044 3190
579a97f7
FB		 3191 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
3192 return -TARGET_EFAULT;
e8bbe36c 3193 target_ip = &(target_sd->sem_perm);
55a2b163
PJ		 3194 host_ip->__key = tswap32(target_ip->__key);
3195 host_ip->uid = tswap32(target_ip->uid);
3196 host_ip->gid = tswap32(target_ip->gid);
3197 host_ip->cuid = tswap32(target_ip->cuid);
3198 host_ip->cgid = tswap32(target_ip->cgid);
3199#if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_PPC)
3200 host_ip->mode = tswap32(target_ip->mode);
3201#else
cbb21eed 3202 host_ip->mode = tswap16(target_ip->mode);
55a2b163
PJ		 3203#endif
3204#if defined(TARGET_PPC)
3205 host_ip->__seq = tswap32(target_ip->__seq);
3206#else
3207 host_ip->__seq = tswap16(target_ip->__seq);
3208#endif
3eb6b044 3209 unlock_user_struct(target_sd, target_addr, 0);
579a97f7 3210 return 0;
3eb6b044
TS		 3211}
3212
579a97f7
FB		 3213static inline abi_long host_to_target_ipc_perm(abi_ulong target_addr,
3214 struct ipc_perm *host_ip)
3eb6b044
TS		 3215{
3216 struct target_ipc_perm *target_ip;
005eb2ae 3217 struct target_semid64_ds *target_sd;
3eb6b044 3218
579a97f7
FB		 3219 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
3220 return -TARGET_EFAULT;
3eb6b044 3221 target_ip = &(target_sd->sem_perm);
55a2b163
PJ		 3222 target_ip->__key = tswap32(host_ip->__key);
3223 target_ip->uid = tswap32(host_ip->uid);
3224 target_ip->gid = tswap32(host_ip->gid);
3225 target_ip->cuid = tswap32(host_ip->cuid);
3226 target_ip->cgid = tswap32(host_ip->cgid);
3227#if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_PPC)
3228 target_ip->mode = tswap32(host_ip->mode);
3229#else
cbb21eed 3230 target_ip->mode = tswap16(host_ip->mode);
55a2b163
PJ		 3231#endif
3232#if defined(TARGET_PPC)
3233 target_ip->__seq = tswap32(host_ip->__seq);
3234#else
3235 target_ip->__seq = tswap16(host_ip->__seq);
3236#endif
3eb6b044 3237 unlock_user_struct(target_sd, target_addr, 1);
579a97f7 3238 return 0;
3eb6b044
TS		 3239}
3240
579a97f7
FB		 3241static inline abi_long target_to_host_semid_ds(struct semid_ds *host_sd,
3242 abi_ulong target_addr)
3eb6b044 3243{
005eb2ae 3244 struct target_semid64_ds *target_sd;
3eb6b044 3245
579a97f7
FB		 3246 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
3247 return -TARGET_EFAULT;
e5289087
AJ		 3248 if (target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr))
3249 return -TARGET_EFAULT;
cbb21eed
MB		 3250 host_sd->sem_nsems = tswapal(target_sd->sem_nsems);
3251 host_sd->sem_otime = tswapal(target_sd->sem_otime);
3252 host_sd->sem_ctime = tswapal(target_sd->sem_ctime);
3eb6b044 3253 unlock_user_struct(target_sd, target_addr, 0);
579a97f7 3254 return 0;
3eb6b044
TS		 3255}
3256
579a97f7
FB		 3257static inline abi_long host_to_target_semid_ds(abi_ulong target_addr,
3258 struct semid_ds *host_sd)
3eb6b044 3259{
005eb2ae 3260 struct target_semid64_ds *target_sd;
3eb6b044 3261
579a97f7
FB		 3262 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
3263 return -TARGET_EFAULT;
e5289087 3264 if (host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm)))
3a93113a 3265 return -TARGET_EFAULT;
cbb21eed
MB		 3266 target_sd->sem_nsems = tswapal(host_sd->sem_nsems);
3267 target_sd->sem_otime = tswapal(host_sd->sem_otime);
3268 target_sd->sem_ctime = tswapal(host_sd->sem_ctime);
3eb6b044 3269 unlock_user_struct(target_sd, target_addr, 1);
579a97f7 3270 return 0;
3eb6b044
TS		 3271}
3272
e5289087
AJ		 3273struct target_seminfo {
3274 int semmap;
3275 int semmni;
3276 int semmns;
3277 int semmnu;
3278 int semmsl;
3279 int semopm;
3280 int semume;
3281 int semusz;
3282 int semvmx;
3283 int semaem;
3284};
3285
3286static inline abi_long host_to_target_seminfo(abi_ulong target_addr,
3287 struct seminfo *host_seminfo)
3288{
3289 struct target_seminfo *target_seminfo;
3290 if (!lock_user_struct(VERIFY_WRITE, target_seminfo, target_addr, 0))
3291 return -TARGET_EFAULT;
3292 __put_user(host_seminfo->semmap, &target_seminfo->semmap);
3293 __put_user(host_seminfo->semmni, &target_seminfo->semmni);
3294 __put_user(host_seminfo->semmns, &target_seminfo->semmns);
3295 __put_user(host_seminfo->semmnu, &target_seminfo->semmnu);
3296 __put_user(host_seminfo->semmsl, &target_seminfo->semmsl);
3297 __put_user(host_seminfo->semopm, &target_seminfo->semopm);
3298 __put_user(host_seminfo->semume, &target_seminfo->semume);
3299 __put_user(host_seminfo->semusz, &target_seminfo->semusz);
3300 __put_user(host_seminfo->semvmx, &target_seminfo->semvmx);
3301 __put_user(host_seminfo->semaem, &target_seminfo->semaem);
3302 unlock_user_struct(target_seminfo, target_addr, 1);
3303 return 0;
3304}
3305
fa294816
TS		 3306union semun {
3307 int val;
3eb6b044 3308 struct semid_ds *buf;
fa294816 3309 unsigned short *array;
e5289087 3310 struct seminfo *__buf;
fa294816
TS		 3311};
3312
3eb6b044
TS		 3313union target_semun {
3314 int val;
e5289087
AJ		 3315 abi_ulong buf;
3316 abi_ulong array;
3317 abi_ulong __buf;
3eb6b044
TS		 3318};
3319
e5289087
AJ		 3320static inline abi_long target_to_host_semarray(int semid, unsigned short **host_array,
3321 abi_ulong target_addr)
3eb6b044 3322{
e5289087
AJ		 3323 int nsems;
3324 unsigned short *array;
3325 union semun semun;
3326 struct semid_ds semid_ds;
3327 int i, ret;
3eb6b044 3328
e5289087
AJ		 3329 semun.buf = &semid_ds;
3330
3331 ret = semctl(semid, 0, IPC_STAT, semun);
3332 if (ret == -1)
3333 return get_errno(ret);
3334
3335 nsems = semid_ds.sem_nsems;
3336
0e173b24 3337 *host_array = g_try_new(unsigned short, nsems);
69d4c703
PM		 3338 if (!*host_array) {
3339 return -TARGET_ENOMEM;
3340 }
e5289087
AJ		 3341 array = lock_user(VERIFY_READ, target_addr,
3342 nsems*sizeof(unsigned short), 1);
69d4c703 3343 if (!array) {
0e173b24 3344 g_free(*host_array);
e5289087 3345 return -TARGET_EFAULT;
69d4c703 3346 }
e5289087
AJ		 3347
3348 for(i=0; i<nsems; i++) {
3349 __get_user((*host_array)[i], &array[i]);
3eb6b044 3350 }
e5289087
AJ		 3351 unlock_user(array, target_addr, 0);
3352
579a97f7 3353 return 0;
3eb6b044
TS		 3354}
3355
e5289087
AJ		 3356static inline abi_long host_to_target_semarray(int semid, abi_ulong target_addr,
3357 unsigned short **host_array)
3eb6b044 3358{
e5289087
AJ		 3359 int nsems;
3360 unsigned short *array;
3361 union semun semun;
3362 struct semid_ds semid_ds;
3363 int i, ret;
3eb6b044 3364
e5289087
AJ		 3365 semun.buf = &semid_ds;
3366
3367 ret = semctl(semid, 0, IPC_STAT, semun);
3368 if (ret == -1)
3369 return get_errno(ret);
3370
3371 nsems = semid_ds.sem_nsems;
3372
3373 array = lock_user(VERIFY_WRITE, target_addr,
3374 nsems*sizeof(unsigned short), 0);
3375 if (!array)
3376 return -TARGET_EFAULT;
3377
3378 for(i=0; i<nsems; i++) {
3379 __put_user((*host_array)[i], &array[i]);
3eb6b044 3380 }
0e173b24 3381 g_free(*host_array);
e5289087
AJ		 3382 unlock_user(array, target_addr, 1);
3383
579a97f7 3384 return 0;
3eb6b044
TS		 3385}
3386
e5289087 3387static inline abi_long do_semctl(int semid, int semnum, int cmd,
d1c002b6 3388 abi_ulong target_arg)
3eb6b044 3389{
d1c002b6 3390 union target_semun target_su = { .buf = target_arg };
3eb6b044
TS		 3391 union semun arg;
3392 struct semid_ds dsarg;
7b8118e8 3393 unsigned short *array = NULL;
e5289087
AJ		 3394 struct seminfo seminfo;
3395 abi_long ret = -TARGET_EINVAL;
3396 abi_long err;
3397 cmd &= 0xff;
3eb6b044
TS		 3398
3399 switch( cmd ) {
3400 case GETVAL:
3eb6b044 3401 case SETVAL:
5464baec
TM		 3402 /* In 64 bit cross-endian situations, we will erroneously pick up
3403 * the wrong half of the union for the "val" element. To rectify
3404 * this, the entire 8-byte structure is byteswapped, followed by
3405 * a swap of the 4 byte val field. In other cases, the data is
3406 * already in proper host byte order. */
3407 if (sizeof(target_su.val) != (sizeof(target_su.buf))) {
3408 target_su.buf = tswapal(target_su.buf);
3409 arg.val = tswap32(target_su.val);
3410 } else {
3411 arg.val = target_su.val;
3412 }
e5289087 3413 ret = get_errno(semctl(semid, semnum, cmd, arg));
3eb6b044
TS		 3414 break;
3415 case GETALL:
3eb6b044 3416 case SETALL:
e5289087
AJ		 3417 err = target_to_host_semarray(semid, &array, target_su.array);
3418 if (err)
3419 return err;
3420 arg.array = array;
3421 ret = get_errno(semctl(semid, semnum, cmd, arg));
3422 err = host_to_target_semarray(semid, target_su.array, &array);
3423 if (err)
3424 return err;
3eb6b044
TS		 3425 break;
3426 case IPC_STAT:
3eb6b044 3427 case IPC_SET:
e5289087
AJ		 3428 case SEM_STAT:
3429 err = target_to_host_semid_ds(&dsarg, target_su.buf);
3430 if (err)
3431 return err;
3432 arg.buf = &dsarg;
3433 ret = get_errno(semctl(semid, semnum, cmd, arg));
3434 err = host_to_target_semid_ds(target_su.buf, &dsarg);
3435 if (err)
3436 return err;
3437 break;
3438 case IPC_INFO:
3439 case SEM_INFO:
3440 arg.__buf = &seminfo;
3441 ret = get_errno(semctl(semid, semnum, cmd, arg));
3442 err = host_to_target_seminfo(target_su.__buf, &seminfo);
3443 if (err)
3444 return err;
3445 break;
3446 case IPC_RMID:
3447 case GETPID:
3448 case GETNCNT:
3449 case GETZCNT:
3450 ret = get_errno(semctl(semid, semnum, cmd, NULL));
3eb6b044 3451 break;
3eb6b044
TS		 3452 }
3453
3454 return ret;
3455}
3456
e5289087
AJ		 3457struct target_sembuf {
3458 unsigned short sem_num;
3459 short sem_op;
3460 short sem_flg;
3461};
3462
3463static inline abi_long target_to_host_sembuf(struct sembuf *host_sembuf,
3464 abi_ulong target_addr,
3465 unsigned nsops)
3466{
3467 struct target_sembuf *target_sembuf;
3468 int i;
3469
3470 target_sembuf = lock_user(VERIFY_READ, target_addr,
3471 nsops*sizeof(struct target_sembuf), 1);
3472 if (!target_sembuf)
3473 return -TARGET_EFAULT;
3474
3475 for(i=0; i<nsops; i++) {
3476 __get_user(host_sembuf[i].sem_num, &target_sembuf[i].sem_num);
3477 __get_user(host_sembuf[i].sem_op, &target_sembuf[i].sem_op);
3478 __get_user(host_sembuf[i].sem_flg, &target_sembuf[i].sem_flg);
3479 }
3480
3481 unlock_user(target_sembuf, target_addr, 0);
3482
3483 return 0;
3484}
3485
3486static inline abi_long do_semop(int semid, abi_long ptr, unsigned nsops)
3487{
3488 struct sembuf sops[nsops];
3489
3490 if (target_to_host_sembuf(sops, ptr, nsops))
3491 return -TARGET_EFAULT;
3492
ffb7ee79 3493 return get_errno(safe_semtimedop(semid, sops, nsops, NULL));
e5289087
AJ		 3494}
3495
1bc012f6
TS		 3496struct target_msqid_ds
3497{
1c54ff97
AJ		 3498 struct target_ipc_perm msg_perm;
3499 abi_ulong msg_stime;
3500#if TARGET_ABI_BITS == 32
3501 abi_ulong __unused1;
3502#endif
3503 abi_ulong msg_rtime;
3504#if TARGET_ABI_BITS == 32
3505 abi_ulong __unused2;
3506#endif
3507 abi_ulong msg_ctime;
3508#if TARGET_ABI_BITS == 32
3509 abi_ulong __unused3;
3510#endif
3511 abi_ulong __msg_cbytes;
3512 abi_ulong msg_qnum;
3513 abi_ulong msg_qbytes;
3514 abi_ulong msg_lspid;
3515 abi_ulong msg_lrpid;
3516 abi_ulong __unused4;
3517 abi_ulong __unused5;
1bc012f6
TS		 3518};
3519
579a97f7
FB		 3520static inline abi_long target_to_host_msqid_ds(struct msqid_ds *host_md,
3521 abi_ulong target_addr)
1bc012f6
TS		 3522{
3523 struct target_msqid_ds *target_md;
3524
579a97f7
FB		 3525 if (!lock_user_struct(VERIFY_READ, target_md, target_addr, 1))
3526 return -TARGET_EFAULT;
1c54ff97
AJ		 3527 if (target_to_host_ipc_perm(&(host_md->msg_perm),target_addr))
3528 return -TARGET_EFAULT;
cbb21eed
MB		 3529 host_md->msg_stime = tswapal(target_md->msg_stime);
3530 host_md->msg_rtime = tswapal(target_md->msg_rtime);
3531 host_md->msg_ctime = tswapal(target_md->msg_ctime);
3532 host_md->__msg_cbytes = tswapal(target_md->__msg_cbytes);
3533 host_md->msg_qnum = tswapal(target_md->msg_qnum);
3534 host_md->msg_qbytes = tswapal(target_md->msg_qbytes);
3535 host_md->msg_lspid = tswapal(target_md->msg_lspid);
3536 host_md->msg_lrpid = tswapal(target_md->msg_lrpid);
1bc012f6 3537 unlock_user_struct(target_md, target_addr, 0);
579a97f7 3538 return 0;
1bc012f6
TS		 3539}
3540
579a97f7
FB		 3541static inline abi_long host_to_target_msqid_ds(abi_ulong target_addr,
3542 struct msqid_ds *host_md)
1bc012f6
TS		 3543{
3544 struct target_msqid_ds *target_md;
3545
579a97f7
FB		 3546 if (!lock_user_struct(VERIFY_WRITE, target_md, target_addr, 0))
3547 return -TARGET_EFAULT;
1c54ff97
AJ		 3548 if (host_to_target_ipc_perm(target_addr,&(host_md->msg_perm)))
3549 return -TARGET_EFAULT;
cbb21eed
MB		 3550 target_md->msg_stime = tswapal(host_md->msg_stime);
3551 target_md->msg_rtime = tswapal(host_md->msg_rtime);
3552 target_md->msg_ctime = tswapal(host_md->msg_ctime);
3553 target_md->__msg_cbytes = tswapal(host_md->__msg_cbytes);
3554 target_md->msg_qnum = tswapal(host_md->msg_qnum);
3555 target_md->msg_qbytes = tswapal(host_md->msg_qbytes);
3556 target_md->msg_lspid = tswapal(host_md->msg_lspid);
3557 target_md->msg_lrpid = tswapal(host_md->msg_lrpid);
1bc012f6 3558 unlock_user_struct(target_md, target_addr, 1);
579a97f7 3559 return 0;
1bc012f6
TS		 3560}
3561
1c54ff97
AJ		 3562struct target_msginfo {
3563 int msgpool;
3564 int msgmap;
3565 int msgmax;
3566 int msgmnb;
3567 int msgmni;
3568 int msgssz;
3569 int msgtql;
3570 unsigned short int msgseg;
3571};
3572
3573static inline abi_long host_to_target_msginfo(abi_ulong target_addr,
3574 struct msginfo *host_msginfo)
3575{
3576 struct target_msginfo *target_msginfo;
3577 if (!lock_user_struct(VERIFY_WRITE, target_msginfo, target_addr, 0))
3578 return -TARGET_EFAULT;
3579 __put_user(host_msginfo->msgpool, &target_msginfo->msgpool);
3580 __put_user(host_msginfo->msgmap, &target_msginfo->msgmap);
3581 __put_user(host_msginfo->msgmax, &target_msginfo->msgmax);
3582 __put_user(host_msginfo->msgmnb, &target_msginfo->msgmnb);
3583 __put_user(host_msginfo->msgmni, &target_msginfo->msgmni);
3584 __put_user(host_msginfo->msgssz, &target_msginfo->msgssz);
3585 __put_user(host_msginfo->msgtql, &target_msginfo->msgtql);
3586 __put_user(host_msginfo->msgseg, &target_msginfo->msgseg);
3587 unlock_user_struct(target_msginfo, target_addr, 1);
00b229ac 3588 return 0;
1c54ff97
AJ		 3589}
3590
3591static inline abi_long do_msgctl(int msgid, int cmd, abi_long ptr)
1bc012f6
TS		 3592{
3593 struct msqid_ds dsarg;
1c54ff97
AJ		 3594 struct msginfo msginfo;
3595 abi_long ret = -TARGET_EINVAL;
3596
3597 cmd &= 0xff;
3598
3599 switch (cmd) {
1bc012f6
TS		 3600 case IPC_STAT:
3601 case IPC_SET:
1c54ff97
AJ		 3602 case MSG_STAT:
3603 if (target_to_host_msqid_ds(&dsarg,ptr))
3604 return -TARGET_EFAULT;
3605 ret = get_errno(msgctl(msgid, cmd, &dsarg));
3606 if (host_to_target_msqid_ds(ptr,&dsarg))
3607 return -TARGET_EFAULT;
3608 break;
3609 case IPC_RMID:
3610 ret = get_errno(msgctl(msgid, cmd, NULL));
3611 break;
3612 case IPC_INFO:
3613 case MSG_INFO:
3614 ret = get_errno(msgctl(msgid, cmd, (struct msqid_ds *)&msginfo));
3615 if (host_to_target_msginfo(ptr, &msginfo))
3616 return -TARGET_EFAULT;
3617 break;
1bc012f6 3618 }
1c54ff97 3619
1bc012f6
TS		 3620 return ret;
3621}
3622
3623struct target_msgbuf {
1c54ff97
AJ		 3624 abi_long mtype;
3625 char mtext[1];
1bc012f6
TS		 3626};
3627
992f48a0 3628static inline abi_long do_msgsnd(int msqid, abi_long msgp,
edcc5f9d 3629 ssize_t msgsz, int msgflg)
1bc012f6
TS		 3630{
3631 struct target_msgbuf *target_mb;
3632 struct msgbuf *host_mb;
992f48a0 3633 abi_long ret = 0;
1bc012f6 3634
edcc5f9d
TM		 3635 if (msgsz < 0) {
3636 return -TARGET_EINVAL;
3637 }
3638
579a97f7
FB		 3639 if (!lock_user_struct(VERIFY_READ, target_mb, msgp, 0))
3640 return -TARGET_EFAULT;
0e173b24 3641 host_mb = g_try_malloc(msgsz + sizeof(long));
29e03fcb
HZ		 3642 if (!host_mb) {
3643 unlock_user_struct(target_mb, msgp, 0);
3644 return -TARGET_ENOMEM;
3645 }
cbb21eed 3646 host_mb->mtype = (abi_long) tswapal(target_mb->mtype);
1c54ff97 3647 memcpy(host_mb->mtext, target_mb->mtext, msgsz);
89f9fe44 3648 ret = get_errno(safe_msgsnd(msqid, host_mb, msgsz, msgflg));
0e173b24 3649 g_free(host_mb);
1bc012f6
TS		 3650 unlock_user_struct(target_mb, msgp, 0);
3651
3652 return ret;
3653}
3654
992f48a0 3655static inline abi_long do_msgrcv(int msqid, abi_long msgp,
99874f65 3656 ssize_t msgsz, abi_long msgtyp,
992f48a0 3657 int msgflg)
1bc012f6
TS		 3658{
3659 struct target_msgbuf *target_mb;
579a97f7 3660 char *target_mtext;
1bc012f6 3661 struct msgbuf *host_mb;
992f48a0 3662 abi_long ret = 0;
1bc012f6 3663
99874f65
PM		 3664 if (msgsz < 0) {
3665 return -TARGET_EINVAL;
3666 }
3667
579a97f7
FB		 3668 if (!lock_user_struct(VERIFY_WRITE, target_mb, msgp, 0))
3669 return -TARGET_EFAULT;
1c54ff97 3670
415d8471
PM		 3671 host_mb = g_try_malloc(msgsz + sizeof(long));
3672 if (!host_mb) {
3673 ret = -TARGET_ENOMEM;
3674 goto end;
3675 }
89f9fe44 3676 ret = get_errno(safe_msgrcv(msqid, host_mb, msgsz, msgtyp, msgflg));
1c54ff97 3677
579a97f7
FB		 3678 if (ret > 0) {
3679 abi_ulong target_mtext_addr = msgp + sizeof(abi_ulong);
3680 target_mtext = lock_user(VERIFY_WRITE, target_mtext_addr, ret, 0);
3681 if (!target_mtext) {
3682 ret = -TARGET_EFAULT;
3683 goto end;
3684 }
1c54ff97 3685 memcpy(target_mb->mtext, host_mb->mtext, ret);
579a97f7
FB		 3686 unlock_user(target_mtext, target_mtext_addr, ret);
3687 }
1c54ff97 3688
cbb21eed 3689 target_mb->mtype = tswapal(host_mb->mtype);
1bc012f6 3690
579a97f7
FB		 3691end:
3692 if (target_mb)
3693 unlock_user_struct(target_mb, msgp, 1);
0d07fe47 3694 g_free(host_mb);
1bc012f6
TS		 3695 return ret;
3696}
3697
88a8c984
RV		 3698static inline abi_long target_to_host_shmid_ds(struct shmid_ds *host_sd,
3699 abi_ulong target_addr)
3700{
3701 struct target_shmid_ds *target_sd;
3702
3703 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
3704 return -TARGET_EFAULT;
3705 if (target_to_host_ipc_perm(&(host_sd->shm_perm), target_addr))
3706 return -TARGET_EFAULT;
3707 __get_user(host_sd->shm_segsz, &target_sd->shm_segsz);
3708 __get_user(host_sd->shm_atime, &target_sd->shm_atime);
3709 __get_user(host_sd->shm_dtime, &target_sd->shm_dtime);
3710 __get_user(host_sd->shm_ctime, &target_sd->shm_ctime);
3711 __get_user(host_sd->shm_cpid, &target_sd->shm_cpid);
3712 __get_user(host_sd->shm_lpid, &target_sd->shm_lpid);
3713 __get_user(host_sd->shm_nattch, &target_sd->shm_nattch);
3714 unlock_user_struct(target_sd, target_addr, 0);
3715 return 0;
3716}
3717
3718static inline abi_long host_to_target_shmid_ds(abi_ulong target_addr,
3719 struct shmid_ds *host_sd)
3720{
3721 struct target_shmid_ds *target_sd;
3722
3723 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
3724 return -TARGET_EFAULT;
3725 if (host_to_target_ipc_perm(target_addr, &(host_sd->shm_perm)))
3726 return -TARGET_EFAULT;
3727 __put_user(host_sd->shm_segsz, &target_sd->shm_segsz);
3728 __put_user(host_sd->shm_atime, &target_sd->shm_atime);
3729 __put_user(host_sd->shm_dtime, &target_sd->shm_dtime);
3730 __put_user(host_sd->shm_ctime, &target_sd->shm_ctime);
3731 __put_user(host_sd->shm_cpid, &target_sd->shm_cpid);
3732 __put_user(host_sd->shm_lpid, &target_sd->shm_lpid);
3733 __put_user(host_sd->shm_nattch, &target_sd->shm_nattch);
3734 unlock_user_struct(target_sd, target_addr, 1);
3735 return 0;
3736}
3737
3738struct target_shminfo {
3739 abi_ulong shmmax;
3740 abi_ulong shmmin;
3741 abi_ulong shmmni;
3742 abi_ulong shmseg;
3743 abi_ulong shmall;
3744};
3745
3746static inline abi_long host_to_target_shminfo(abi_ulong target_addr,
3747 struct shminfo *host_shminfo)
3748{
3749 struct target_shminfo *target_shminfo;
3750 if (!lock_user_struct(VERIFY_WRITE, target_shminfo, target_addr, 0))
3751 return -TARGET_EFAULT;
3752 __put_user(host_shminfo->shmmax, &target_shminfo->shmmax);
3753 __put_user(host_shminfo->shmmin, &target_shminfo->shmmin);
3754 __put_user(host_shminfo->shmmni, &target_shminfo->shmmni);
3755 __put_user(host_shminfo->shmseg, &target_shminfo->shmseg);
3756 __put_user(host_shminfo->shmall, &target_shminfo->shmall);
3757 unlock_user_struct(target_shminfo, target_addr, 1);
3758 return 0;
3759}
3760
3761struct target_shm_info {
3762 int used_ids;
3763 abi_ulong shm_tot;
3764 abi_ulong shm_rss;
3765 abi_ulong shm_swp;
3766 abi_ulong swap_attempts;
3767 abi_ulong swap_successes;
3768};
3769
3770static inline abi_long host_to_target_shm_info(abi_ulong target_addr,
3771 struct shm_info *host_shm_info)
3772{
3773 struct target_shm_info *target_shm_info;
3774 if (!lock_user_struct(VERIFY_WRITE, target_shm_info, target_addr, 0))
3775 return -TARGET_EFAULT;
3776 __put_user(host_shm_info->used_ids, &target_shm_info->used_ids);
3777 __put_user(host_shm_info->shm_tot, &target_shm_info->shm_tot);
3778 __put_user(host_shm_info->shm_rss, &target_shm_info->shm_rss);
3779 __put_user(host_shm_info->shm_swp, &target_shm_info->shm_swp);
3780 __put_user(host_shm_info->swap_attempts, &target_shm_info->swap_attempts);
3781 __put_user(host_shm_info->swap_successes, &target_shm_info->swap_successes);
3782 unlock_user_struct(target_shm_info, target_addr, 1);
3783 return 0;
3784}
3785
3786static inline abi_long do_shmctl(int shmid, int cmd, abi_long buf)
3787{
3788 struct shmid_ds dsarg;
3789 struct shminfo shminfo;
3790 struct shm_info shm_info;
3791 abi_long ret = -TARGET_EINVAL;
3792
3793 cmd &= 0xff;
3794
3795 switch(cmd) {
3796 case IPC_STAT:
3797 case IPC_SET:
3798 case SHM_STAT:
3799 if (target_to_host_shmid_ds(&dsarg, buf))
3800 return -TARGET_EFAULT;
3801 ret = get_errno(shmctl(shmid, cmd, &dsarg));
3802 if (host_to_target_shmid_ds(buf, &dsarg))
3803 return -TARGET_EFAULT;
3804 break;
3805 case IPC_INFO:
3806 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shminfo));
3807 if (host_to_target_shminfo(buf, &shminfo))
3808 return -TARGET_EFAULT;
3809 break;
3810 case SHM_INFO:
3811 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shm_info));
3812 if (host_to_target_shm_info(buf, &shm_info))
3813 return -TARGET_EFAULT;
3814 break;
3815 case IPC_RMID:
3816 case SHM_LOCK:
3817 case SHM_UNLOCK:
3818 ret = get_errno(shmctl(shmid, cmd, NULL));
3819 break;
3820 }
3821
3822 return ret;
3823}
3824
ee8e7614
PM		 3825#ifndef TARGET_FORCE_SHMLBA
3826/* For most architectures, SHMLBA is the same as the page size;
3827 * some architectures have larger values, in which case they should
3828 * define TARGET_FORCE_SHMLBA and provide a target_shmlba() function.
3829 * This corresponds to the kernel arch code defining __ARCH_FORCE_SHMLBA
3830 * and defining its own value for SHMLBA.
3831 *
3832 * The kernel also permits SHMLBA to be set by the architecture to a
3833 * value larger than the page size without setting __ARCH_FORCE_SHMLBA;
3834 * this means that addresses are rounded to the large size if
3835 * SHM_RND is set but addresses not aligned to that size are not rejected
3836 * as long as they are at least page-aligned. Since the only architecture
3837 * which uses this is ia64 this code doesn't provide for that oddity.
3838 */
3839static inline abi_ulong target_shmlba(CPUArchState *cpu_env)
3840{
3841 return TARGET_PAGE_SIZE;
3842}
3843#endif
3844
3845static inline abi_ulong do_shmat(CPUArchState *cpu_env,
3846 int shmid, abi_ulong shmaddr, int shmflg)
88a8c984
RV		 3847{
3848 abi_long raddr;
3849 void *host_raddr;
3850 struct shmid_ds shm_info;
3851 int i,ret;
ee8e7614 3852 abi_ulong shmlba;
88a8c984
RV		 3853
3854 /* find out the length of the shared memory segment */
3855 ret = get_errno(shmctl(shmid, IPC_STAT, &shm_info));
3856 if (is_error(ret)) {
3857 /* can't get length, bail out */
3858 return ret;
3859 }
3860
ee8e7614
PM		 3861 shmlba = target_shmlba(cpu_env);
3862
3863 if (shmaddr & (shmlba - 1)) {
3864 if (shmflg & SHM_RND) {
3865 shmaddr &= ~(shmlba - 1);
3866 } else {
3867 return -TARGET_EINVAL;
3868 }
3869 }
ebf9a363
MF		 3870 if (!guest_range_valid(shmaddr, shm_info.shm_segsz)) {
3871 return -TARGET_EINVAL;
3872 }
ee8e7614 3873
88a8c984
RV		 3874 mmap_lock();
3875
3876 if (shmaddr)
3877 host_raddr = shmat(shmid, (void *)g2h(shmaddr), shmflg);
3878 else {
3879 abi_ulong mmap_start;
3880
3881 mmap_start = mmap_find_vma(0, shm_info.shm_segsz);
3882
3883 if (mmap_start == -1) {
3884 errno = ENOMEM;
3885 host_raddr = (void *)-1;
3886 } else
3887 host_raddr = shmat(shmid, g2h(mmap_start), shmflg | SHM_REMAP);
3888 }
3889
3890 if (host_raddr == (void *)-1) {
3891 mmap_unlock();
3892 return get_errno((long)host_raddr);
3893 }
3894 raddr=h2g((unsigned long)host_raddr);
3895
3896 page_set_flags(raddr, raddr + shm_info.shm_segsz,
3897 PAGE_VALID | PAGE_READ |
3898 ((shmflg & SHM_RDONLY)? 0 : PAGE_WRITE));
3899
3900 for (i = 0; i < N_SHM_REGIONS; i++) {
b6e17875
PM		 3901 if (!shm_regions[i].in_use) {
3902 shm_regions[i].in_use = true;
88a8c984
RV		 3903 shm_regions[i].start = raddr;
3904 shm_regions[i].size = shm_info.shm_segsz;
3905 break;
3906 }
3907 }
3908
3909 mmap_unlock();
3910 return raddr;
3911
3912}
3913
3914static inline abi_long do_shmdt(abi_ulong shmaddr)
3915{
3916 int i;
3c5f6a5f
MF		 3917 abi_long rv;
3918
3919 mmap_lock();
88a8c984
RV		 3920
3921 for (i = 0; i < N_SHM_REGIONS; ++i) {
b6e17875
PM		 3922 if (shm_regions[i].in_use && shm_regions[i].start == shmaddr) {
3923 shm_regions[i].in_use = false;
e00ac249 3924 page_set_flags(shmaddr, shmaddr + shm_regions[i].size, 0);
88a8c984
RV		 3925 break;
3926 }
3927 }
3c5f6a5f 3928 rv = get_errno(shmdt(g2h(shmaddr)));
88a8c984 3929
3c5f6a5f 3930 mmap_unlock();
88a8c984 3931
3c5f6a5f 3932 return rv;
88a8c984
RV		 3933}
3934
1c54ff97 3935#ifdef TARGET_NR_ipc
53a5960a 3936/* ??? This only works with linear mappings. */
0da46a6e 3937/* do_ipc() must return target values and target errnos. */
ee8e7614
PM		 3938static abi_long do_ipc(CPUArchState *cpu_env,
3939 unsigned int call, abi_long first,
37ed0956 3940 abi_long second, abi_long third,
992f48a0 3941 abi_long ptr, abi_long fifth)
8853f86e
FB		 3942{
3943 int version;
992f48a0 3944 abi_long ret = 0;
8853f86e
FB		 3945
3946 version = call >> 16;
3947 call &= 0xffff;
3948
3949 switch (call) {
fa294816 3950 case IPCOP_semop:
e5289087 3951 ret = do_semop(first, ptr, second);
fa294816
TS		 3952 break;
3953
3954 case IPCOP_semget:
3955 ret = get_errno(semget(first, second, third));
3956 break;
3957
5d2fa8eb
TM		 3958 case IPCOP_semctl: {
3959 /* The semun argument to semctl is passed by value, so dereference the
3960 * ptr argument. */
3961 abi_ulong atptr;
37ed0956 3962 get_user_ual(atptr, ptr);
d1c002b6 3963 ret = do_semctl(first, second, third, atptr);
fa294816 3964 break;
5d2fa8eb 3965 }
d96372ef 3966
1c54ff97
AJ		 3967 case IPCOP_msgget:
3968 ret = get_errno(msgget(first, second));
3969 break;
d96372ef 3970
1c54ff97
AJ		 3971 case IPCOP_msgsnd:
3972 ret = do_msgsnd(first, ptr, second, third);
3973 break;
d96372ef 3974
1c54ff97
AJ		 3975 case IPCOP_msgctl:
3976 ret = do_msgctl(first, second, ptr);
3977 break;
d96372ef 3978
1c54ff97
AJ		 3979 case IPCOP_msgrcv:
3980 switch (version) {
3981 case 0:
3982 {
3983 struct target_ipc_kludge {
3984 abi_long msgp;
3985 abi_long msgtyp;
3986 } *tmp;
3987
3988 if (!lock_user_struct(VERIFY_READ, tmp, ptr, 1)) {
3989 ret = -TARGET_EFAULT;
3990 break;
3991 }
d96372ef 3992
79dd77de 3993 ret = do_msgrcv(first, tswapal(tmp->msgp), second, tswapal(tmp->msgtyp), third);
d96372ef 3994
1c54ff97
AJ		 3995 unlock_user_struct(tmp, ptr, 0);
3996 break;
3997 }
3998 default:
3999 ret = do_msgrcv(first, ptr, second, fifth, third);
4000 }
4001 break;
d96372ef 4002
8853f86e 4003 case IPCOP_shmat:
88a8c984
RV		 4004 switch (version) {
4005 default:
5a4a898d
FB		 4006 {
4007 abi_ulong raddr;
ee8e7614 4008 raddr = do_shmat(cpu_env, first, ptr, second);
88a8c984
RV		 4009 if (is_error(raddr))
4010 return get_errno(raddr);
2f619698 4011 if (put_user_ual(raddr, third))
5a4a898d 4012 return -TARGET_EFAULT;
88a8c984
RV		 4013 break;
4014 }
4015 case 1:
4016 ret = -TARGET_EINVAL;
4017 break;
5a4a898d 4018 }
8853f86e
FB		 4019 break;
4020 case IPCOP_shmdt:
88a8c984 4021 ret = do_shmdt(ptr);
8853f86e
FB		 4022 break;
4023
4024 case IPCOP_shmget:
4025 /* IPC_* flag values are the same on all linux platforms */
4026 ret = get_errno(shmget(first, second, third));
4027 break;
4028
4029 /* IPC_* and SHM_* command values are the same on all linux platforms */
4030 case IPCOP_shmctl:
a2926784 4031 ret = do_shmctl(first, second, ptr);
8853f86e
FB		 4032 break;
4033 default:
32407103 4034 gemu_log("Unsupported ipc call: %d (version %d)\n", call, version);
0da46a6e 4035 ret = -TARGET_ENOSYS;
8853f86e
FB		 4036 break;
4037 }
4038 return ret;
4039}
32407103 4040#endif
8853f86e 4041
31e31b8a 4042/* kernel structure types definitions */
31e31b8a 4043
001faf32 4044#define STRUCT(name, ...) STRUCT_ ## name,
31e31b8a
FB		 4045#define STRUCT_SPECIAL(name) STRUCT_ ## name,
4046enum {
4047#include "syscall_types.h"
8be656b8 4048STRUCT_MAX
31e31b8a
FB		 4049};
4050#undef STRUCT
4051#undef STRUCT_SPECIAL
4052
001faf32 4053#define STRUCT(name, ...) static const argtype struct_ ## name ## _def[] = { __VA_ARGS__, TYPE_NULL };
31e31b8a
FB		 4054#define STRUCT_SPECIAL(name)
4055#include "syscall_types.h"
4056#undef STRUCT
4057#undef STRUCT_SPECIAL
4058
d2ef05bb
PM		 4059typedef struct IOCTLEntry IOCTLEntry;
4060
4061typedef abi_long do_ioctl_fn(const IOCTLEntry *ie, uint8_t *buf_temp,
45c874eb 4062 int fd, int cmd, abi_long arg);
d2ef05bb
PM		 4063
4064struct IOCTLEntry {
9c6bf9c7 4065 int target_cmd;
2ab83ea7 4066 unsigned int host_cmd;
31e31b8a
FB		 4067 const char *name;
4068 int access;
d2ef05bb 4069 do_ioctl_fn *do_ioctl;
1a9353d2 4070 const argtype arg_type[5];
d2ef05bb 4071};
31e31b8a
FB		 4072
4073#define IOC_R 0x0001
4074#define IOC_W 0x0002
4075#define IOC_RW (IOC_R | IOC_W)
4076
4077#define MAX_STRUCT_SIZE 4096
4078
dace20dc 4079#ifdef CONFIG_FIEMAP
285da2b9
PM		 4080/* So fiemap access checks don't overflow on 32 bit systems.
4081 * This is very slightly smaller than the limit imposed by
4082 * the underlying kernel.
4083 */
4084#define FIEMAP_MAX_EXTENTS ((UINT_MAX - sizeof(struct fiemap)) \
4085 / sizeof(struct fiemap_extent))
4086
4087static abi_long do_ioctl_fs_ioc_fiemap(const IOCTLEntry *ie, uint8_t *buf_temp,
45c874eb 4088 int fd, int cmd, abi_long arg)
285da2b9
PM		 4089{
4090 /* The parameter for this ioctl is a struct fiemap followed
4091 * by an array of struct fiemap_extent whose size is set
4092 * in fiemap->fm_extent_count. The array is filled in by the
4093 * ioctl.
4094 */
4095 int target_size_in, target_size_out;
4096 struct fiemap *fm;
4097 const argtype *arg_type = ie->arg_type;
4098 const argtype extent_arg_type[] = { MK_STRUCT(STRUCT_fiemap_extent) };
4099 void *argptr, *p;
4100 abi_long ret;
4101 int i, extent_size = thunk_type_size(extent_arg_type, 0);
4102 uint32_t outbufsz;
4103 int free_fm = 0;
4104
4105 assert(arg_type[0] == TYPE_PTR);
4106 assert(ie->access == IOC_RW);
4107 arg_type++;
4108 target_size_in = thunk_type_size(arg_type, 0);
4109 argptr = lock_user(VERIFY_READ, arg, target_size_in, 1);
4110 if (!argptr) {
4111 return -TARGET_EFAULT;
4112 }
4113 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
4114 unlock_user(argptr, arg, 0);
4115 fm = (struct fiemap *)buf_temp;
4116 if (fm->fm_extent_count > FIEMAP_MAX_EXTENTS) {
4117 return -TARGET_EINVAL;
4118 }
4119
4120 outbufsz = sizeof (*fm) +
4121 (sizeof(struct fiemap_extent) * fm->fm_extent_count);
4122
4123 if (outbufsz > MAX_STRUCT_SIZE) {
4124 /* We can't fit all the extents into the fixed size buffer.
4125 * Allocate one that is large enough and use it instead.
4126 */
0e173b24 4127 fm = g_try_malloc(outbufsz);
285da2b9
PM		 4128 if (!fm) {
4129 return -TARGET_ENOMEM;
4130 }
4131 memcpy(fm, buf_temp, sizeof(struct fiemap));
4132 free_fm = 1;
4133 }
49ca6f3e 4134 ret = get_errno(safe_ioctl(fd, ie->host_cmd, fm));
285da2b9
PM		 4135 if (!is_error(ret)) {
4136 target_size_out = target_size_in;
4137 /* An extent_count of 0 means we were only counting the extents
4138 * so there are no structs to copy
4139 */
4140 if (fm->fm_extent_count != 0) {
4141 target_size_out += fm->fm_mapped_extents * extent_size;
4142 }
4143 argptr = lock_user(VERIFY_WRITE, arg, target_size_out, 0);
4144 if (!argptr) {
4145 ret = -TARGET_EFAULT;
4146 } else {
4147 /* Convert the struct fiemap */
4148 thunk_convert(argptr, fm, arg_type, THUNK_TARGET);
4149 if (fm->fm_extent_count != 0) {
4150 p = argptr + target_size_in;
4151 /* ...and then all the struct fiemap_extents */
4152 for (i = 0; i < fm->fm_mapped_extents; i++) {
4153 thunk_convert(p, &fm->fm_extents[i], extent_arg_type,
4154 THUNK_TARGET);
4155 p += extent_size;
4156 }
4157 }
4158 unlock_user(argptr, arg, target_size_out);
4159 }
4160 }
4161 if (free_fm) {
0e173b24 4162 g_free(fm);
285da2b9
PM		 4163 }
4164 return ret;
4165}
dace20dc 4166#endif
285da2b9 4167
059c2f2c 4168static abi_long do_ioctl_ifconf(const IOCTLEntry *ie, uint8_t *buf_temp,
45c874eb 4169 int fd, int cmd, abi_long arg)
059c2f2c
LV		 4170{
4171 const argtype *arg_type = ie->arg_type;
4172 int target_size;
4173 void *argptr;
4174 int ret;
4175 struct ifconf *host_ifconf;
4176 uint32_t outbufsz;
4177 const argtype ifreq_arg_type[] = { MK_STRUCT(STRUCT_sockaddr_ifreq) };
4178 int target_ifreq_size;
4179 int nb_ifreq;
4180 int free_buf = 0;
4181 int i;
4182 int target_ifc_len;
4183 abi_long target_ifc_buf;
4184 int host_ifc_len;
4185 char *host_ifc_buf;
4186
4187 assert(arg_type[0] == TYPE_PTR);
4188 assert(ie->access == IOC_RW);
4189
4190 arg_type++;
4191 target_size = thunk_type_size(arg_type, 0);
4192
4193 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4194 if (!argptr)
4195 return -TARGET_EFAULT;
4196 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
4197 unlock_user(argptr, arg, 0);
4198
4199 host_ifconf = (struct ifconf *)(unsigned long)buf_temp;
059c2f2c 4200 target_ifc_buf = (abi_long)(unsigned long)host_ifconf->ifc_buf;
059c2f2c 4201 target_ifreq_size = thunk_type_size(ifreq_arg_type, 0);
059c2f2c 4202
22e4a267
KL		 4203 if (target_ifc_buf != 0) {
4204 target_ifc_len = host_ifconf->ifc_len;
4205 nb_ifreq = target_ifc_len / target_ifreq_size;
4206 host_ifc_len = nb_ifreq * sizeof(struct ifreq);
4207
4208 outbufsz = sizeof(*host_ifconf) + host_ifc_len;
4209 if (outbufsz > MAX_STRUCT_SIZE) {
4210 /*
4211 * We can't fit all the extents into the fixed size buffer.
4212 * Allocate one that is large enough and use it instead.
4213 */
4214 host_ifconf = malloc(outbufsz);
4215 if (!host_ifconf) {
4216 return -TARGET_ENOMEM;
4217 }
4218 memcpy(host_ifconf, buf_temp, sizeof(*host_ifconf));
4219 free_buf = 1;
059c2f2c 4220 }
22e4a267 4221 host_ifc_buf = (char *)host_ifconf + sizeof(*host_ifconf);
059c2f2c 4222
22e4a267
KL		 4223 host_ifconf->ifc_len = host_ifc_len;
4224 } else {
4225 host_ifc_buf = NULL;
4226 }
059c2f2c
LV		 4227 host_ifconf->ifc_buf = host_ifc_buf;
4228
49ca6f3e 4229 ret = get_errno(safe_ioctl(fd, ie->host_cmd, host_ifconf));
059c2f2c
LV		 4230 if (!is_error(ret)) {
4231 /* convert host ifc_len to target ifc_len */
4232
4233 nb_ifreq = host_ifconf->ifc_len / sizeof(struct ifreq);
4234 target_ifc_len = nb_ifreq * target_ifreq_size;
4235 host_ifconf->ifc_len = target_ifc_len;
4236
4237 /* restore target ifc_buf */
4238
4239 host_ifconf->ifc_buf = (char *)(unsigned long)target_ifc_buf;
4240
4241 /* copy struct ifconf to target user */
4242
4243 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
4244 if (!argptr)
4245 return -TARGET_EFAULT;
4246 thunk_convert(argptr, host_ifconf, arg_type, THUNK_TARGET);
4247 unlock_user(argptr, arg, target_size);
4248
22e4a267
KL		 4249 if (target_ifc_buf != 0) {
4250 /* copy ifreq[] to target user */
4251 argptr = lock_user(VERIFY_WRITE, target_ifc_buf, target_ifc_len, 0);
4252 for (i = 0; i < nb_ifreq ; i++) {
4253 thunk_convert(argptr + i * target_ifreq_size,
4254 host_ifc_buf + i * sizeof(struct ifreq),
4255 ifreq_arg_type, THUNK_TARGET);
4256 }
4257 unlock_user(argptr, target_ifc_buf, target_ifc_len);
059c2f2c 4258 }
059c2f2c
LV		 4259 }
4260
4261 if (free_buf) {
4262 free(host_ifconf);
4263 }
4264
4265 return ret;
4266}
4267
a133367e
CT		 4268#if defined(CONFIG_USBFS)
4269#if HOST_LONG_BITS > 64
4270#error USBDEVFS thunks do not support >64 bit hosts yet.
4271#endif
4272struct live_urb {
4273 uint64_t target_urb_adr;
4274 uint64_t target_buf_adr;
4275 char *target_buf_ptr;
4276 struct usbdevfs_urb host_urb;
4277};
4278
4279static GHashTable *usbdevfs_urb_hashtable(void)
4280{
4281 static GHashTable *urb_hashtable;
4282
4283 if (!urb_hashtable) {
4284 urb_hashtable = g_hash_table_new(g_int64_hash, g_int64_equal);
4285 }
4286 return urb_hashtable;
4287}
4288
4289static void urb_hashtable_insert(struct live_urb *urb)
4290{
4291 GHashTable *urb_hashtable = usbdevfs_urb_hashtable();
4292 g_hash_table_insert(urb_hashtable, urb, urb);
4293}
4294
4295static struct live_urb *urb_hashtable_lookup(uint64_t target_urb_adr)
4296{
4297 GHashTable *urb_hashtable = usbdevfs_urb_hashtable();
4298 return g_hash_table_lookup(urb_hashtable, &target_urb_adr);
4299}
4300
4301static void urb_hashtable_remove(struct live_urb *urb)
4302{
4303 GHashTable *urb_hashtable = usbdevfs_urb_hashtable();
4304 g_hash_table_remove(urb_hashtable, urb);
4305}
4306
4307static abi_long
4308do_ioctl_usbdevfs_reapurb(const IOCTLEntry *ie, uint8_t *buf_temp,
4309 int fd, int cmd, abi_long arg)
4310{
4311 const argtype usbfsurb_arg_type[] = { MK_STRUCT(STRUCT_usbdevfs_urb) };
4312 const argtype ptrvoid_arg_type[] = { TYPE_PTRVOID, 0, 0 };
4313 struct live_urb *lurb;
4314 void *argptr;
4315 uint64_t hurb;
4316 int target_size;
4317 uintptr_t target_urb_adr;
4318 abi_long ret;
4319
4320 target_size = thunk_type_size(usbfsurb_arg_type, THUNK_TARGET);
4321
4322 memset(buf_temp, 0, sizeof(uint64_t));
4323 ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
4324 if (is_error(ret)) {
4325 return ret;
4326 }
4327
4328 memcpy(&hurb, buf_temp, sizeof(uint64_t));
4329 lurb = (void *)((uintptr_t)hurb - offsetof(struct live_urb, host_urb));
4330 if (!lurb->target_urb_adr) {
4331 return -TARGET_EFAULT;
4332 }
4333 urb_hashtable_remove(lurb);
4334 unlock_user(lurb->target_buf_ptr, lurb->target_buf_adr,
4335 lurb->host_urb.buffer_length);
4336 lurb->target_buf_ptr = NULL;
4337
4338 /* restore the guest buffer pointer */
4339 lurb->host_urb.buffer = (void *)(uintptr_t)lurb->target_buf_adr;
4340
4341 /* update the guest urb struct */
4342 argptr = lock_user(VERIFY_WRITE, lurb->target_urb_adr, target_size, 0);
4343 if (!argptr) {
4344 g_free(lurb);
4345 return -TARGET_EFAULT;
4346 }
4347 thunk_convert(argptr, &lurb->host_urb, usbfsurb_arg_type, THUNK_TARGET);
4348 unlock_user(argptr, lurb->target_urb_adr, target_size);
4349
4350 target_size = thunk_type_size(ptrvoid_arg_type, THUNK_TARGET);
4351 /* write back the urb handle */
4352 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
4353 if (!argptr) {
4354 g_free(lurb);
4355 return -TARGET_EFAULT;
4356 }
4357
4358 /* GHashTable uses 64-bit keys but thunk_convert expects uintptr_t */
4359 target_urb_adr = lurb->target_urb_adr;
4360 thunk_convert(argptr, &target_urb_adr, ptrvoid_arg_type, THUNK_TARGET);
4361 unlock_user(argptr, arg, target_size);
4362
4363 g_free(lurb);
4364 return ret;
4365}
4366
4367static abi_long
4368do_ioctl_usbdevfs_discardurb(const IOCTLEntry *ie,
4369 uint8_t *buf_temp __attribute__((unused)),
4370 int fd, int cmd, abi_long arg)
4371{
4372 struct live_urb *lurb;
4373
4374 /* map target address back to host URB with metadata. */
4375 lurb = urb_hashtable_lookup(arg);
4376 if (!lurb) {
4377 return -TARGET_EFAULT;
4378 }
4379 return get_errno(safe_ioctl(fd, ie->host_cmd, &lurb->host_urb));
4380}
4381
4382static abi_long
4383do_ioctl_usbdevfs_submiturb(const IOCTLEntry *ie, uint8_t *buf_temp,
4384 int fd, int cmd, abi_long arg)
4385{
4386 const argtype *arg_type = ie->arg_type;
4387 int target_size;
4388 abi_long ret;
4389 void *argptr;
4390 int rw_dir;
4391 struct live_urb *lurb;
4392
4393 /*
4394 * each submitted URB needs to map to a unique ID for the
4395 * kernel, and that unique ID needs to be a pointer to
4396 * host memory. hence, we need to malloc for each URB.
4397 * isochronous transfers have a variable length struct.
4398 */
4399 arg_type++;
4400 target_size = thunk_type_size(arg_type, THUNK_TARGET);
4401
4402 /* construct host copy of urb and metadata */
4403 lurb = g_try_malloc0(sizeof(struct live_urb));
4404 if (!lurb) {
4405 return -TARGET_ENOMEM;
4406 }
4407
4408 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4409 if (!argptr) {
4410 g_free(lurb);
4411 return -TARGET_EFAULT;
4412 }
4413 thunk_convert(&lurb->host_urb, argptr, arg_type, THUNK_HOST);
4414 unlock_user(argptr, arg, 0);
4415
4416 lurb->target_urb_adr = arg;
4417 lurb->target_buf_adr = (uintptr_t)lurb->host_urb.buffer;
4418
4419 /* buffer space used depends on endpoint type so lock the entire buffer */
4420 /* control type urbs should check the buffer contents for true direction */
4421 rw_dir = lurb->host_urb.endpoint & USB_DIR_IN ? VERIFY_WRITE : VERIFY_READ;
4422 lurb->target_buf_ptr = lock_user(rw_dir, lurb->target_buf_adr,
4423 lurb->host_urb.buffer_length, 1);
4424 if (lurb->target_buf_ptr == NULL) {
4425 g_free(lurb);
4426 return -TARGET_EFAULT;
4427 }
4428
4429 /* update buffer pointer in host copy */
4430 lurb->host_urb.buffer = lurb->target_buf_ptr;
4431
4432 ret = get_errno(safe_ioctl(fd, ie->host_cmd, &lurb->host_urb));
4433 if (is_error(ret)) {
4434 unlock_user(lurb->target_buf_ptr, lurb->target_buf_adr, 0);
4435 g_free(lurb);
4436 } else {
4437 urb_hashtable_insert(lurb);
4438 }
4439
4440 return ret;
4441}
4442#endif /* CONFIG_USBFS */
4443
56e904ec 4444static abi_long do_ioctl_dm(const IOCTLEntry *ie, uint8_t *buf_temp, int fd,
45c874eb 4445 int cmd, abi_long arg)
56e904ec
AG		 4446{
4447 void *argptr;
4448 struct dm_ioctl *host_dm;
4449 abi_long guest_data;
4450 uint32_t guest_data_size;
4451 int target_size;
4452 const argtype *arg_type = ie->arg_type;
4453 abi_long ret;
4454 void *big_buf = NULL;
4455 char *host_data;
4456
4457 arg_type++;
4458 target_size = thunk_type_size(arg_type, 0);
4459 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4460 if (!argptr) {
4461 ret = -TARGET_EFAULT;
4462 goto out;
4463 }
4464 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
4465 unlock_user(argptr, arg, 0);
4466
4467 /* buf_temp is too small, so fetch things into a bigger buffer */
4468 big_buf = g_malloc0(((struct dm_ioctl*)buf_temp)->data_size * 2);
4469 memcpy(big_buf, buf_temp, target_size);
4470 buf_temp = big_buf;
4471 host_dm = big_buf;
4472
4473 guest_data = arg + host_dm->data_start;
4474 if ((guest_data - arg) < 0) {
f9757b1d 4475 ret = -TARGET_EINVAL;
56e904ec
AG		 4476 goto out;
4477 }
4478 guest_data_size = host_dm->data_size - host_dm->data_start;
4479 host_data = (char*)host_dm + host_dm->data_start;
4480
4481 argptr = lock_user(VERIFY_READ, guest_data, guest_data_size, 1);
3211215e
PM		 4482 if (!argptr) {
4483 ret = -TARGET_EFAULT;
4484 goto out;
4485 }
4486
56e904ec
AG		 4487 switch (ie->host_cmd) {
4488 case DM_REMOVE_ALL:
4489 case DM_LIST_DEVICES:
4490 case DM_DEV_CREATE:
4491 case DM_DEV_REMOVE:
4492 case DM_DEV_SUSPEND:
4493 case DM_DEV_STATUS:
4494 case DM_DEV_WAIT:
4495 case DM_TABLE_STATUS:
4496 case DM_TABLE_CLEAR:
4497 case DM_TABLE_DEPS:
4498 case DM_LIST_VERSIONS:
4499 /* no input data */
4500 break;
4501 case DM_DEV_RENAME:
4502 case DM_DEV_SET_GEOMETRY:
4503 /* data contains only strings */
4504 memcpy(host_data, argptr, guest_data_size);
4505 break;
4506 case DM_TARGET_MSG:
4507 memcpy(host_data, argptr, guest_data_size);
4508 *(uint64_t*)host_data = tswap64(*(uint64_t*)argptr);
4509 break;
4510 case DM_TABLE_LOAD:
4511 {
4512 void *gspec = argptr;
4513 void *cur_data = host_data;
4514 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_spec) };
4515 int spec_size = thunk_type_size(arg_type, 0);
4516 int i;
4517
4518 for (i = 0; i < host_dm->target_count; i++) {
4519 struct dm_target_spec *spec = cur_data;
4520 uint32_t next;
4521 int slen;
4522
4523 thunk_convert(spec, gspec, arg_type, THUNK_HOST);
4524 slen = strlen((char*)gspec + spec_size) + 1;
4525 next = spec->next;
4526 spec->next = sizeof(*spec) + slen;
4527 strcpy((char*)&spec[1], gspec + spec_size);
4528 gspec += next;
4529 cur_data += spec->next;
4530 }
4531 break;
4532 }
4533 default:
4534 ret = -TARGET_EINVAL;
dec0473d 4535 unlock_user(argptr, guest_data, 0);
56e904ec
AG		 4536 goto out;
4537 }
4538 unlock_user(argptr, guest_data, 0);
4539
49ca6f3e 4540 ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
56e904ec
AG		 4541 if (!is_error(ret)) {
4542 guest_data = arg + host_dm->data_start;
4543 guest_data_size = host_dm->data_size - host_dm->data_start;
4544 argptr = lock_user(VERIFY_WRITE, guest_data, guest_data_size, 0);
4545 switch (ie->host_cmd) {
4546 case DM_REMOVE_ALL:
4547 case DM_DEV_CREATE:
4548 case DM_DEV_REMOVE:
4549 case DM_DEV_RENAME:
4550 case DM_DEV_SUSPEND:
4551 case DM_DEV_STATUS:
4552 case DM_TABLE_LOAD:
4553 case DM_TABLE_CLEAR:
4554 case DM_TARGET_MSG:
4555 case DM_DEV_SET_GEOMETRY:
4556 /* no return data */
4557 break;
4558 case DM_LIST_DEVICES:
4559 {
4560 struct dm_name_list *nl = (void*)host_dm + host_dm->data_start;
4561 uint32_t remaining_data = guest_data_size;
4562 void *cur_data = argptr;
4563 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_name_list) };
4564 int nl_size = 12; /* can't use thunk_size due to alignment */
4565
4566 while (1) {
4567 uint32_t next = nl->next;
4568 if (next) {
4569 nl->next = nl_size + (strlen(nl->name) + 1);
4570 }
4571 if (remaining_data < nl->next) {
4572 host_dm->flags |= DM_BUFFER_FULL_FLAG;
4573 break;
4574 }
4575 thunk_convert(cur_data, nl, arg_type, THUNK_TARGET);
4576 strcpy(cur_data + nl_size, nl->name);
4577 cur_data += nl->next;
4578 remaining_data -= nl->next;
4579 if (!next) {
4580 break;
4581 }
4582 nl = (void*)nl + next;
4583 }
4584 break;
4585 }
4586 case DM_DEV_WAIT:
4587 case DM_TABLE_STATUS:
4588 {
4589 struct dm_target_spec *spec = (void*)host_dm + host_dm->data_start;
4590 void *cur_data = argptr;
4591 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_spec) };
4592 int spec_size = thunk_type_size(arg_type, 0);
4593 int i;
4594
4595 for (i = 0; i < host_dm->target_count; i++) {
4596 uint32_t next = spec->next;
4597 int slen = strlen((char*)&spec[1]) + 1;
4598 spec->next = (cur_data - argptr) + spec_size + slen;
4599 if (guest_data_size < spec->next) {
4600 host_dm->flags |= DM_BUFFER_FULL_FLAG;
4601 break;
4602 }
4603 thunk_convert(cur_data, spec, arg_type, THUNK_TARGET);
4604 strcpy(cur_data + spec_size, (char*)&spec[1]);
4605 cur_data = argptr + spec->next;
4606 spec = (void*)host_dm + host_dm->data_start + next;
4607 }
4608 break;
4609 }
4610 case DM_TABLE_DEPS:
4611 {
4612 void *hdata = (void*)host_dm + host_dm->data_start;
4613 int count = *(uint32_t*)hdata;
4614 uint64_t *hdev = hdata + 8;
4615 uint64_t *gdev = argptr + 8;
4616 int i;
4617
4618 *(uint32_t*)argptr = tswap32(count);
4619 for (i = 0; i < count; i++) {
4620 *gdev = tswap64(*hdev);
4621 gdev++;
4622 hdev++;
4623 }
4624 break;
4625 }
4626 case DM_LIST_VERSIONS:
4627 {
4628 struct dm_target_versions *vers = (void*)host_dm + host_dm->data_start;
4629 uint32_t remaining_data = guest_data_size;
4630 void *cur_data = argptr;
4631 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_versions) };
4632 int vers_size = thunk_type_size(arg_type, 0);
4633
4634 while (1) {
4635 uint32_t next = vers->next;
4636 if (next) {
4637 vers->next = vers_size + (strlen(vers->name) + 1);
4638 }
4639 if (remaining_data < vers->next) {
4640 host_dm->flags |= DM_BUFFER_FULL_FLAG;
4641 break;
4642 }
4643 thunk_convert(cur_data, vers, arg_type, THUNK_TARGET);
4644 strcpy(cur_data + vers_size, vers->name);
4645 cur_data += vers->next;
4646 remaining_data -= vers->next;
4647 if (!next) {
4648 break;
4649 }
4650 vers = (void*)vers + next;
4651 }
4652 break;
4653 }
4654 default:
dec0473d 4655 unlock_user(argptr, guest_data, 0);
56e904ec
AG		 4656 ret = -TARGET_EINVAL;
4657 goto out;
4658 }
4659 unlock_user(argptr, guest_data, guest_data_size);
4660
4661 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
4662 if (!argptr) {
4663 ret = -TARGET_EFAULT;
4664 goto out;
4665 }
4666 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
4667 unlock_user(argptr, arg, target_size);
4668 }
4669out:
ad11ad77 4670 g_free(big_buf);
56e904ec
AG		 4671 return ret;
4672}
4673
a59b5e35 4674static abi_long do_ioctl_blkpg(const IOCTLEntry *ie, uint8_t *buf_temp, int fd,
45c874eb 4675 int cmd, abi_long arg)
a59b5e35
AG		 4676{
4677 void *argptr;
4678 int target_size;
4679 const argtype *arg_type = ie->arg_type;
4680 const argtype part_arg_type[] = { MK_STRUCT(STRUCT_blkpg_partition) };
4681 abi_long ret;
4682
4683 struct blkpg_ioctl_arg *host_blkpg = (void*)buf_temp;
4684 struct blkpg_partition host_part;
4685
4686 /* Read and convert blkpg */
4687 arg_type++;
4688 target_size = thunk_type_size(arg_type, 0);
4689 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4690 if (!argptr) {
4691 ret = -TARGET_EFAULT;
4692 goto out;
4693 }
4694 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
4695 unlock_user(argptr, arg, 0);
4696
4697 switch (host_blkpg->op) {
4698 case BLKPG_ADD_PARTITION:
4699 case BLKPG_DEL_PARTITION:
4700 /* payload is struct blkpg_partition */
4701 break;
4702 default:
4703 /* Unknown opcode */
4704 ret = -TARGET_EINVAL;
4705 goto out;
4706 }
4707
4708 /* Read and convert blkpg->data */
4709 arg = (abi_long)(uintptr_t)host_blkpg->data;
4710 target_size = thunk_type_size(part_arg_type, 0);
4711 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4712 if (!argptr) {
4713 ret = -TARGET_EFAULT;
4714 goto out;
4715 }
4716 thunk_convert(&host_part, argptr, part_arg_type, THUNK_HOST);
4717 unlock_user(argptr, arg, 0);
4718
4719 /* Swizzle the data pointer to our local copy and call! */
4720 host_blkpg->data = &host_part;
49ca6f3e 4721 ret = get_errno(safe_ioctl(fd, ie->host_cmd, host_blkpg));
a59b5e35
AG		 4722
4723out:
4724 return ret;
4725}
4726
7ff7b666 4727static abi_long do_ioctl_rt(const IOCTLEntry *ie, uint8_t *buf_temp,
45c874eb 4728 int fd, int cmd, abi_long arg)
7ff7b666
LV		 4729{
4730 const argtype *arg_type = ie->arg_type;
4731 const StructEntry *se;
4732 const argtype *field_types;
4733 const int *dst_offsets, *src_offsets;
4734 int target_size;
4735 void *argptr;
4736 abi_ulong *target_rt_dev_ptr;
4737 unsigned long *host_rt_dev_ptr;
4738 abi_long ret;
4739 int i;
4740
4741 assert(ie->access == IOC_W);
4742 assert(*arg_type == TYPE_PTR);
4743 arg_type++;
4744 assert(*arg_type == TYPE_STRUCT);
4745 target_size = thunk_type_size(arg_type, 0);
4746 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4747 if (!argptr) {
4748 return -TARGET_EFAULT;
4749 }
4750 arg_type++;
4751 assert(*arg_type == (int)STRUCT_rtentry);
4752 se = struct_entries + *arg_type++;
4753 assert(se->convert[0] == NULL);
4754 /* convert struct here to be able to catch rt_dev string */
4755 field_types = se->field_types;
4756 dst_offsets = se->field_offsets[THUNK_HOST];
4757 src_offsets = se->field_offsets[THUNK_TARGET];
4758 for (i = 0; i < se->nb_fields; i++) {
4759 if (dst_offsets[i] == offsetof(struct rtentry, rt_dev)) {
4760 assert(*field_types == TYPE_PTRVOID);
4761 target_rt_dev_ptr = (abi_ulong *)(argptr + src_offsets[i]);
4762 host_rt_dev_ptr = (unsigned long *)(buf_temp + dst_offsets[i]);
4763 if (*target_rt_dev_ptr != 0) {
4764 *host_rt_dev_ptr = (unsigned long)lock_user_string(
4765 tswapal(*target_rt_dev_ptr));
4766 if (!*host_rt_dev_ptr) {
4767 unlock_user(argptr, arg, 0);
4768 return -TARGET_EFAULT;
4769 }
4770 } else {
4771 *host_rt_dev_ptr = 0;
4772 }
4773 field_types++;
4774 continue;
4775 }
4776 field_types = thunk_convert(buf_temp + dst_offsets[i],
4777 argptr + src_offsets[i],
4778 field_types, THUNK_HOST);
4779 }
4780 unlock_user(argptr, arg, 0);
4781
49ca6f3e 4782 ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
7ff7b666
LV		 4783 if (*host_rt_dev_ptr != 0) {
4784 unlock_user((void *)*host_rt_dev_ptr,
4785 *target_rt_dev_ptr, 0);
4786 }
4787 return ret;
4788}
4789
ca56f5b5 4790static abi_long do_ioctl_kdsigaccept(const IOCTLEntry *ie, uint8_t *buf_temp,
45c874eb 4791 int fd, int cmd, abi_long arg)
ca56f5b5
PB		 4792{
4793 int sig = target_to_host_signal(arg);
49ca6f3e 4794 return get_errno(safe_ioctl(fd, ie->host_cmd, sig));
ca56f5b5
PB		 4795}
4796
2b74f621
AS		 4797#ifdef TIOCGPTPEER
4798static abi_long do_ioctl_tiocgptpeer(const IOCTLEntry *ie, uint8_t *buf_temp,
4799 int fd, int cmd, abi_long arg)
4800{
4801 int flags = target_to_host_bitmask(arg, fcntl_flags_tbl);
4802 return get_errno(safe_ioctl(fd, ie->host_cmd, flags));
4803}
4804#endif
4805
9f106a75 4806static IOCTLEntry ioctl_entries[] = {
001faf32 4807#define IOCTL(cmd, access, ...) \
d2ef05bb
PM		 4808 { TARGET_ ## cmd, cmd, #cmd, access, 0, { __VA_ARGS__ } },
4809#define IOCTL_SPECIAL(cmd, access, dofn, ...) \
4810 { TARGET_ ## cmd, cmd, #cmd, access, dofn, { __VA_ARGS__ } },
8cb762fe
HD		 4811#define IOCTL_IGNORE(cmd) \
4812 { TARGET_ ## cmd, 0, #cmd },
31e31b8a
FB		 4813#include "ioctls.h"
4814 { 0, 0, },
4815};
4816
53a5960a 4817/* ??? Implement proper locking for ioctls. */
0da46a6e 4818/* do_ioctl() Must return target values and target errnos. */
45c874eb 4819static abi_long do_ioctl(int fd, int cmd, abi_long arg)
31e31b8a
FB		 4820{
4821 const IOCTLEntry *ie;
4822 const argtype *arg_type;
992f48a0 4823 abi_long ret;
31e31b8a 4824 uint8_t buf_temp[MAX_STRUCT_SIZE];
53a5960a
PB		 4825 int target_size;
4826 void *argptr;
31e31b8a
FB		 4827
4828 ie = ioctl_entries;
4829 for(;;) {
4830 if (ie->target_cmd == 0) {
32407103 4831 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", (long)cmd);
0da46a6e 4832 return -TARGET_ENOSYS;
31e31b8a
FB		 4833 }
4834 if (ie->target_cmd == cmd)
4835 break;
4836 ie++;
4837 }
4838 arg_type = ie->arg_type;
d2ef05bb
PM		 4839 if (ie->do_ioctl) {
4840 return ie->do_ioctl(ie, buf_temp, fd, cmd, arg);
8cb762fe
HD		 4841 } else if (!ie->host_cmd) {
4842 /* Some architectures define BSD ioctls in their headers
4843 that are not implemented in Linux. */
4844 return -TARGET_ENOSYS;
d2ef05bb
PM		 4845 }
4846
31e31b8a
FB		 4847 switch(arg_type[0]) {
4848 case TYPE_NULL:
4849 /* no argument */
49ca6f3e 4850 ret = get_errno(safe_ioctl(fd, ie->host_cmd));
31e31b8a
FB		 4851 break;
4852 case TYPE_PTRVOID:
4853 case TYPE_INT:
49ca6f3e 4854 ret = get_errno(safe_ioctl(fd, ie->host_cmd, arg));
31e31b8a
FB		 4855 break;
4856 case TYPE_PTR:
4857 arg_type++;
53a5960a 4858 target_size = thunk_type_size(arg_type, 0);
31e31b8a
FB		 4859 switch(ie->access) {
4860 case IOC_R:
49ca6f3e 4861 ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
31e31b8a 4862 if (!is_error(ret)) {
579a97f7
FB		 4863 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
4864 if (!argptr)
4865 return -TARGET_EFAULT;
53a5960a
PB		 4866 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
4867 unlock_user(argptr, arg, target_size);
31e31b8a
FB		 4868 }
4869 break;
4870 case IOC_W:
579a97f7
FB		 4871 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4872 if (!argptr)
4873 return -TARGET_EFAULT;
53a5960a
PB		 4874 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
4875 unlock_user(argptr, arg, 0);
49ca6f3e 4876 ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
31e31b8a
FB		 4877 break;
4878 default:
4879 case IOC_RW:
579a97f7
FB		 4880 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4881 if (!argptr)
4882 return -TARGET_EFAULT;
53a5960a
PB		 4883 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
4884 unlock_user(argptr, arg, 0);
49ca6f3e 4885 ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
31e31b8a 4886 if (!is_error(ret)) {
579a97f7
FB		 4887 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
4888 if (!argptr)
4889 return -TARGET_EFAULT;
53a5960a
PB		 4890 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
4891 unlock_user(argptr, arg, target_size);
31e31b8a
FB		 4892 }
4893 break;
4894 }
4895 break;
4896 default:
32407103
JM		 4897 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n",
4898 (long)cmd, arg_type[0]);
0da46a6e 4899 ret = -TARGET_ENOSYS;
31e31b8a
FB		 4900 break;
4901 }
4902 return ret;
4903}
4904
b39bc503 4905static const bitmask_transtbl iflag_tbl[] = {
31e31b8a
FB		 4906 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
4907 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
4908 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
4909 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
4910 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
4911 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
4912 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
4913 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
4914 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
4915 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
4916 { TARGET_IXON, TARGET_IXON, IXON, IXON },
4917 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
4918 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
4919 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
4920 { 0, 0, 0, 0 }
4921};
4922
b39bc503 4923static const bitmask_transtbl oflag_tbl[] = {
31e31b8a
FB		 4924 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
4925 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
4926 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
4927 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
4928 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
4929 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
4930 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
4931 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
4932 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
4933 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
4934 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
4935 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
4936 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
4937 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
4938 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
4939 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
4940 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
4941 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
4942 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
4943 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
4944 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
4945 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
4946 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
4947 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
4948 { 0, 0, 0, 0 }
4949};
4950
b39bc503 4951static const bitmask_transtbl cflag_tbl[] = {
31e31b8a
FB		 4952 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
4953 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
4954 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
4955 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
4956 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
4957 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
4958 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
4959 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
4960 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
4961 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
4962 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
4963 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
4964 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
4965 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
4966 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
4967 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
4968 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
4969 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
4970 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
4971 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
4972 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
4973 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
4974 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
4975 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
4976 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
4977 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
4978 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
4979 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
4980 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
4981 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
4982 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
4983 { 0, 0, 0, 0 }
4984};
4985
b39bc503 4986static const bitmask_transtbl lflag_tbl[] = {
31e31b8a
FB		 4987 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
4988 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
4989 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
4990 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
4991 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
4992 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
4993 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
4994 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
4995 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
4996 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
4997 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
4998 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
4999 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
5000 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
5001 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
5002 { 0, 0, 0, 0 }
5003};
5004
5005static void target_to_host_termios (void *dst, const void *src)
5006{
5007 struct host_termios *host = dst;
5008 const struct target_termios *target = src;
3b46e624 5009
5fafdf24 5010 host->c_iflag =
31e31b8a 5011 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
5fafdf24 5012 host->c_oflag =
31e31b8a 5013 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
5fafdf24 5014 host->c_cflag =
31e31b8a 5015 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
5fafdf24 5016 host->c_lflag =
31e31b8a
FB		 5017 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
5018 host->c_line = target->c_line;
3b46e624 5019
44607123 5020 memset(host->c_cc, 0, sizeof(host->c_cc));
5fafdf24
TS		 5021 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR];
5022 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT];
3b46e624 5023 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];
5fafdf24 5024 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL];
3b46e624 5025 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];
5fafdf24 5026 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME];
3b46e624 5027 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];
5fafdf24 5028 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC];
3b46e624 5029 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];
5fafdf24
TS		 5030 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP];
5031 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP];
3b46e624
TS		 5032 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];
5033 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];
5034 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];
5035 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];
5036 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];
5fafdf24 5037 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2];
31e31b8a 5038}
3b46e624 5039
31e31b8a
FB		 5040static void host_to_target_termios (void *dst, const void *src)
5041{
5042 struct target_termios *target = dst;
5043 const struct host_termios *host = src;
5044
5fafdf24 5045 target->c_iflag =
31e31b8a 5046 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
5fafdf24 5047 target->c_oflag =
31e31b8a 5048 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
5fafdf24 5049 target->c_cflag =
31e31b8a 5050 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
5fafdf24 5051 target->c_lflag =
31e31b8a
FB		 5052 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
5053 target->c_line = host->c_line;
3b46e624 5054
44607123 5055 memset(target->c_cc, 0, sizeof(target->c_cc));
31e31b8a
FB		 5056 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
5057 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
5058 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
5059 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
5060 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
5061 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
5062 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
5063 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
5064 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
5065 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
5066 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
5067 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
5068 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
5069 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
5070 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
5071 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
5072 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
5073}
5074
8e853dc7 5075static const StructEntry struct_termios_def = {
31e31b8a
FB		 5076 .convert = { host_to_target_termios, target_to_host_termios },
5077 .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
5078 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
5079};
5080
5286db75 5081static bitmask_transtbl mmap_flags_tbl[] = {
541e1690
HD		 5082 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
5083 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
5084 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
5085 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS,
5086 MAP_ANONYMOUS, MAP_ANONYMOUS },
5087 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN,
5088 MAP_GROWSDOWN, MAP_GROWSDOWN },
5089 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE,
5090 MAP_DENYWRITE, MAP_DENYWRITE },
5091 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE,
5092 MAP_EXECUTABLE, MAP_EXECUTABLE },
5093 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
5094 { TARGET_MAP_NORESERVE, TARGET_MAP_NORESERVE,
5095 MAP_NORESERVE, MAP_NORESERVE },
5096 { TARGET_MAP_HUGETLB, TARGET_MAP_HUGETLB, MAP_HUGETLB, MAP_HUGETLB },
5097 /* MAP_STACK had been ignored by the kernel for quite some time.
5098 Recognize it for the target insofar as we do not want to pass
5099 it through to the host. */
5100 { TARGET_MAP_STACK, TARGET_MAP_STACK, 0, 0 },
5101 { 0, 0, 0, 0 }
5286db75
FB		 5102};
5103
2ab83ea7 5104#if defined(TARGET_I386)
6dbad63e
FB		 5105
5106/* NOTE: there is really one LDT for all the threads */
b1d8e52e 5107static uint8_t *ldt_table;
6dbad63e 5108
03acab66 5109static abi_long read_ldt(abi_ulong ptr, unsigned long bytecount)
6dbad63e
FB		 5110{
5111 int size;
53a5960a 5112 void *p;
6dbad63e
FB		 5113
5114 if (!ldt_table)
5115 return 0;
5116 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
5117 if (size > bytecount)
5118 size = bytecount;
579a97f7
FB		 5119 p = lock_user(VERIFY_WRITE, ptr, size, 0);
5120 if (!p)
03acab66 5121 return -TARGET_EFAULT;
579a97f7 5122 /* ??? Should this by byteswapped? */
53a5960a
PB		 5123 memcpy(p, ldt_table, size);
5124 unlock_user(p, ptr, size);
6dbad63e
FB		 5125 return size;
5126}
5127
5128/* XXX: add locking support */
03acab66
FB		 5129static abi_long write_ldt(CPUX86State *env,
5130 abi_ulong ptr, unsigned long bytecount, int oldmode)
6dbad63e
FB		 5131{
5132 struct target_modify_ldt_ldt_s ldt_info;
53a5960a 5133 struct target_modify_ldt_ldt_s *target_ldt_info;
6dbad63e 5134 int seg_32bit, contents, read_exec_only, limit_in_pages;
8d18e893 5135 int seg_not_present, useable, lm;
6dbad63e
FB		 5136 uint32_t *lp, entry_1, entry_2;
5137
5138 if (bytecount != sizeof(ldt_info))
03acab66 5139 return -TARGET_EINVAL;
579a97f7 5140 if (!lock_user_struct(VERIFY_READ, target_ldt_info, ptr, 1))
03acab66 5141 return -TARGET_EFAULT;
53a5960a 5142 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
cbb21eed 5143 ldt_info.base_addr = tswapal(target_ldt_info->base_addr);
53a5960a
PB		 5144 ldt_info.limit = tswap32(target_ldt_info->limit);
5145 ldt_info.flags = tswap32(target_ldt_info->flags);
5146 unlock_user_struct(target_ldt_info, ptr, 0);
3b46e624 5147
6dbad63e 5148 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
03acab66 5149 return -TARGET_EINVAL;
6dbad63e
FB		 5150 seg_32bit = ldt_info.flags & 1;
5151 contents = (ldt_info.flags >> 1) & 3;
5152 read_exec_only = (ldt_info.flags >> 3) & 1;
5153 limit_in_pages = (ldt_info.flags >> 4) & 1;
5154 seg_not_present = (ldt_info.flags >> 5) & 1;
5155 useable = (ldt_info.flags >> 6) & 1;
8d18e893
FB		 5156#ifdef TARGET_ABI32
5157 lm = 0;
5158#else
5159 lm = (ldt_info.flags >> 7) & 1;
5160#endif
6dbad63e
FB		 5161 if (contents == 3) {
5162 if (oldmode)
03acab66 5163 return -TARGET_EINVAL;
6dbad63e 5164 if (seg_not_present == 0)
03acab66 5165 return -TARGET_EINVAL;
6dbad63e
FB		 5166 }
5167 /* allocate the LDT */
5168 if (!ldt_table) {
e441570f
AZ		 5169 env->ldt.base = target_mmap(0,
5170 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE,
5171 PROT_READ|PROT_WRITE,
5172 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
5173 if (env->ldt.base == -1)
03acab66 5174 return -TARGET_ENOMEM;
e441570f
AZ		 5175 memset(g2h(env->ldt.base), 0,
5176 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
6dbad63e 5177 env->ldt.limit = 0xffff;
e441570f 5178 ldt_table = g2h(env->ldt.base);
6dbad63e
FB		 5179 }
5180
5181 /* NOTE: same code as Linux kernel */
5182 /* Allow LDTs to be cleared by the user. */
5183 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
5184 if (oldmode ||
5185 (contents == 0 &&
5186 read_exec_only == 1 &&
5187 seg_32bit == 0 &&
5188 limit_in_pages == 0 &&
5189 seg_not_present == 1 &&
5190 useable == 0 )) {
5191 entry_1 = 0;
5192 entry_2 = 0;
5193 goto install;
5194 }
5195 }
3b46e624 5196
6dbad63e
FB		 5197 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
5198 (ldt_info.limit & 0x0ffff);
5199 entry_2 = (ldt_info.base_addr & 0xff000000) |
5200 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
5201 (ldt_info.limit & 0xf0000) |
5202 ((read_exec_only ^ 1) << 9) |
5203 (contents << 10) |
5204 ((seg_not_present ^ 1) << 15) |
5205 (seg_32bit << 22) |
5206 (limit_in_pages << 23) |
8d18e893 5207 (lm << 21) |
6dbad63e
FB		 5208 0x7000;
5209 if (!oldmode)
5210 entry_2 |= (useable << 20);
14ae3ba7 5211
6dbad63e
FB		 5212 /* Install the new entry ... */
5213install:
5214 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
5215 lp[0] = tswap32(entry_1);
5216 lp[1] = tswap32(entry_2);
5217 return 0;
5218}
5219
5220/* specific and weird i386 syscalls */
8fcd3692
BS		 5221static abi_long do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr,
5222 unsigned long bytecount)
6dbad63e 5223{
03acab66 5224 abi_long ret;
3b46e624 5225
6dbad63e
FB		 5226 switch (func) {
5227 case 0:
5228 ret = read_ldt(ptr, bytecount);
5229 break;
5230 case 1:
5231 ret = write_ldt(env, ptr, bytecount, 1);
5232 break;
5233 case 0x11:
5234 ret = write_ldt(env, ptr, bytecount, 0);
5235 break;
03acab66
FB		 5236 default:
5237 ret = -TARGET_ENOSYS;
5238 break;
6dbad63e
FB		 5239 }
5240 return ret;
5241}
1b6b029e 5242
4583f589 5243#if defined(TARGET_I386) && defined(TARGET_ABI32)
bc22eb44 5244abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr)
8d18e893
FB		 5245{
5246 uint64_t *gdt_table = g2h(env->gdt.base);
5247 struct target_modify_ldt_ldt_s ldt_info;
5248 struct target_modify_ldt_ldt_s *target_ldt_info;
5249 int seg_32bit, contents, read_exec_only, limit_in_pages;
5250 int seg_not_present, useable, lm;
5251 uint32_t *lp, entry_1, entry_2;
5252 int i;
5253
5254 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
5255 if (!target_ldt_info)
5256 return -TARGET_EFAULT;
5257 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
cbb21eed 5258 ldt_info.base_addr = tswapal(target_ldt_info->base_addr);
8d18e893
FB		 5259 ldt_info.limit = tswap32(target_ldt_info->limit);
5260 ldt_info.flags = tswap32(target_ldt_info->flags);
5261 if (ldt_info.entry_number == -1) {
5262 for (i=TARGET_GDT_ENTRY_TLS_MIN; i<=TARGET_GDT_ENTRY_TLS_MAX; i++) {
5263 if (gdt_table[i] == 0) {
5264 ldt_info.entry_number = i;
5265 target_ldt_info->entry_number = tswap32(i);
5266 break;
5267 }
5268 }
5269 }
5270 unlock_user_struct(target_ldt_info, ptr, 1);
5271
5272 if (ldt_info.entry_number < TARGET_GDT_ENTRY_TLS_MIN ||
5273 ldt_info.entry_number > TARGET_GDT_ENTRY_TLS_MAX)
5274 return -TARGET_EINVAL;
5275 seg_32bit = ldt_info.flags & 1;
5276 contents = (ldt_info.flags >> 1) & 3;
5277 read_exec_only = (ldt_info.flags >> 3) & 1;
5278 limit_in_pages = (ldt_info.flags >> 4) & 1;
5279 seg_not_present = (ldt_info.flags >> 5) & 1;
5280 useable = (ldt_info.flags >> 6) & 1;
5281#ifdef TARGET_ABI32
5282 lm = 0;
5283#else
5284 lm = (ldt_info.flags >> 7) & 1;
5285#endif
5286
5287 if (contents == 3) {
5288 if (seg_not_present == 0)
5289 return -TARGET_EINVAL;
5290 }
5291
5292 /* NOTE: same code as Linux kernel */
5293 /* Allow LDTs to be cleared by the user. */
5294 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
5295 if ((contents == 0 &&
5296 read_exec_only == 1 &&
5297 seg_32bit == 0 &&
5298 limit_in_pages == 0 &&
5299 seg_not_present == 1 &&
5300 useable == 0 )) {
5301 entry_1 = 0;
5302 entry_2 = 0;
5303 goto install;
5304 }
5305 }
5306
5307 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
5308 (ldt_info.limit & 0x0ffff);
5309 entry_2 = (ldt_info.base_addr & 0xff000000) |
5310 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
5311 (ldt_info.limit & 0xf0000) |
5312 ((read_exec_only ^ 1) << 9) |
5313 (contents << 10) |
5314 ((seg_not_present ^ 1) << 15) |
5315 (seg_32bit << 22) |
5316 (limit_in_pages << 23) |
5317 (useable << 20) |
5318 (lm << 21) |
5319 0x7000;
5320
5321 /* Install the new entry ... */
5322install:
5323 lp = (uint32_t *)(gdt_table + ldt_info.entry_number);
5324 lp[0] = tswap32(entry_1);
5325 lp[1] = tswap32(entry_2);
5326 return 0;
5327}
5328
8fcd3692 5329static abi_long do_get_thread_area(CPUX86State *env, abi_ulong ptr)
8d18e893
FB		 5330{
5331 struct target_modify_ldt_ldt_s *target_ldt_info;
5332 uint64_t *gdt_table = g2h(env->gdt.base);
5333 uint32_t base_addr, limit, flags;
5334 int seg_32bit, contents, read_exec_only, limit_in_pages, idx;
5335 int seg_not_present, useable, lm;
5336 uint32_t *lp, entry_1, entry_2;
5337
5338 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
5339 if (!target_ldt_info)
5340 return -TARGET_EFAULT;
5341 idx = tswap32(target_ldt_info->entry_number);
5342 if (idx < TARGET_GDT_ENTRY_TLS_MIN ||
5343 idx > TARGET_GDT_ENTRY_TLS_MAX) {
5344 unlock_user_struct(target_ldt_info, ptr, 1);
5345 return -TARGET_EINVAL;
5346 }
5347 lp = (uint32_t *)(gdt_table + idx);
5348 entry_1 = tswap32(lp[0]);
5349 entry_2 = tswap32(lp[1]);
5350
5351 read_exec_only = ((entry_2 >> 9) & 1) ^ 1;
5352 contents = (entry_2 >> 10) & 3;
5353 seg_not_present = ((entry_2 >> 15) & 1) ^ 1;
5354 seg_32bit = (entry_2 >> 22) & 1;
5355 limit_in_pages = (entry_2 >> 23) & 1;
5356 useable = (entry_2 >> 20) & 1;
5357#ifdef TARGET_ABI32
5358 lm = 0;
5359#else
5360 lm = (entry_2 >> 21) & 1;
5361#endif
5362 flags = (seg_32bit << 0) | (contents << 1) |
5363 (read_exec_only << 3) | (limit_in_pages << 4) |
5364 (seg_not_present << 5) | (useable << 6) | (lm << 7);
5365 limit = (entry_1 & 0xffff) | (entry_2 & 0xf0000);
5366 base_addr = (entry_1 >> 16) |
5367 (entry_2 & 0xff000000) |
5368 ((entry_2 & 0xff) << 16);
cbb21eed 5369 target_ldt_info->base_addr = tswapal(base_addr);
8d18e893
FB		 5370 target_ldt_info->limit = tswap32(limit);
5371 target_ldt_info->flags = tswap32(flags);
5372 unlock_user_struct(target_ldt_info, ptr, 1);
5373 return 0;
5374}
4583f589 5375#endif /* TARGET_I386 && TARGET_ABI32 */
8d18e893 5376
d2fd1af7 5377#ifndef TARGET_ABI32
2667e71c 5378abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr)
d2fd1af7 5379{
1add8698 5380 abi_long ret = 0;
d2fd1af7
FB		 5381 abi_ulong val;
5382 int idx;
1add8698 5383
d2fd1af7
FB		 5384 switch(code) {
5385 case TARGET_ARCH_SET_GS:
5386 case TARGET_ARCH_SET_FS:
5387 if (code == TARGET_ARCH_SET_GS)
5388 idx = R_GS;
5389 else
5390 idx = R_FS;
5391 cpu_x86_load_seg(env, idx, 0);
5392 env->segs[idx].base = addr;
5393 break;
5394 case TARGET_ARCH_GET_GS:
5395 case TARGET_ARCH_GET_FS:
5396 if (code == TARGET_ARCH_GET_GS)
5397 idx = R_GS;
5398 else
5399 idx = R_FS;
5400 val = env->segs[idx].base;
5401 if (put_user(val, addr, abi_ulong))
1add8698 5402 ret = -TARGET_EFAULT;
d2fd1af7
FB		 5403 break;
5404 default:
5405 ret = -TARGET_EINVAL;
5406 break;
5407 }
1add8698 5408 return ret;
d2fd1af7
FB		 5409}
5410#endif
5411
2ab83ea7
FB		 5412#endif /* defined(TARGET_I386) */
5413
05098a93 5414#define NEW_STACK_SIZE 0x40000
d865bab5 5415
d865bab5
PB		 5416
5417static pthread_mutex_t clone_lock = PTHREAD_MUTEX_INITIALIZER;
5418typedef struct {
9349b4f9 5419 CPUArchState *env;
d865bab5
PB		 5420 pthread_mutex_t mutex;
5421 pthread_cond_t cond;
5422 pthread_t thread;
5423 uint32_t tid;
5424 abi_ulong child_tidptr;
5425 abi_ulong parent_tidptr;
5426 sigset_t sigmask;
5427} new_thread_info;
5428
5429static void *clone_func(void *arg)
5430{
5431 new_thread_info *info = arg;
9349b4f9 5432 CPUArchState *env;
0d34282f 5433 CPUState *cpu;
edf8e2af 5434 TaskState *ts;
d865bab5 5435
70903763 5436 rcu_register_thread();
3468b59e 5437 tcg_register_thread();
d865bab5 5438 env = info->env;
0d34282f 5439 cpu = ENV_GET_CPU(env);
a2247f8e 5440 thread_cpu = cpu;
0429a971 5441 ts = (TaskState *)cpu->opaque;
d865bab5 5442 info->tid = gettid();
edf8e2af 5443 task_settid(ts);
d865bab5
PB		 5444 if (info->child_tidptr)
5445 put_user_u32(info->tid, info->child_tidptr);
5446 if (info->parent_tidptr)
5447 put_user_u32(info->tid, info->parent_tidptr);
5448 /* Enable signals. */
5449 sigprocmask(SIG_SETMASK, &info->sigmask, NULL);
5450 /* Signal to the parent that we're ready. */
5451 pthread_mutex_lock(&info->mutex);
5452 pthread_cond_broadcast(&info->cond);
5453 pthread_mutex_unlock(&info->mutex);
a4dd3d51 5454 /* Wait until the parent has finished initializing the tls state. */
d865bab5
PB		 5455 pthread_mutex_lock(&clone_lock);
5456 pthread_mutex_unlock(&clone_lock);
5457 cpu_loop(env);
5458 /* never exits */
5459 return NULL;
5460}
1b6b029e 5461
0da46a6e
TS		 5462/* do_fork() Must return host values and target errnos (unlike most
5463 do_*() functions). */
9349b4f9 5464static int do_fork(CPUArchState *env, unsigned int flags, abi_ulong newsp,
d865bab5
PB		 5465 abi_ulong parent_tidptr, target_ulong newtls,
5466 abi_ulong child_tidptr)
1b6b029e 5467{
0429a971 5468 CPUState *cpu = ENV_GET_CPU(env);
1b6b029e 5469 int ret;
5cd4393b 5470 TaskState *ts;
0429a971 5471 CPUState *new_cpu;
9349b4f9 5472 CPUArchState *new_env;
d865bab5 5473 sigset_t sigmask;
3b46e624 5474
5ea2fc84
PM		 5475 flags &= ~CLONE_IGNORED_FLAGS;
5476
436d124b
AZ		 5477 /* Emulate vfork() with fork() */
5478 if (flags & CLONE_VFORK)
5479 flags &= ~(CLONE_VFORK | CLONE_VM);
5480
1b6b029e 5481 if (flags & CLONE_VM) {
0429a971 5482 TaskState *parent_ts = (TaskState *)cpu->opaque;
d865bab5
PB		 5483 new_thread_info info;
5484 pthread_attr_t attr;
24cb36a6 5485
5ea2fc84
PM		 5486 if (((flags & CLONE_THREAD_FLAGS) != CLONE_THREAD_FLAGS) ||
5487 (flags & CLONE_INVALID_THREAD_FLAGS)) {
5488 return -TARGET_EINVAL;
5489 }
5490
c78d65e8 5491 ts = g_new0(TaskState, 1);
624f7979 5492 init_task_state(ts);
73a988d9
MF		 5493
5494 /* Grab a mutex so that thread setup appears atomic. */
5495 pthread_mutex_lock(&clone_lock);
5496
1b6b029e 5497 /* we create a new CPU instance. */
c5be9f08 5498 new_env = cpu_copy(env);
6e68e076
PB		 5499 /* Init regs that differ from the parent. */
5500 cpu_clone_regs(new_env, newsp);
0429a971
AF		 5501 new_cpu = ENV_GET_CPU(new_env);
5502 new_cpu->opaque = ts;
edf8e2af
MW		 5503 ts->bprm = parent_ts->bprm;
5504 ts->info = parent_ts->info;
3d3efba0 5505 ts->signal_mask = parent_ts->signal_mask;
d865bab5 5506
7cfbd386 5507 if (flags & CLONE_CHILD_CLEARTID) {
c2764719
PB		 5508 ts->child_tidptr = child_tidptr;
5509 }
5510
7cfbd386 5511 if (flags & CLONE_SETTLS) {
d865bab5 5512 cpu_set_tls (new_env, newtls);
7cfbd386 5513 }
d865bab5 5514
d865bab5
PB		 5515 memset(&info, 0, sizeof(info));
5516 pthread_mutex_init(&info.mutex, NULL);
5517 pthread_mutex_lock(&info.mutex);
5518 pthread_cond_init(&info.cond, NULL);
5519 info.env = new_env;
7cfbd386 5520 if (flags & CLONE_CHILD_SETTID) {
d865bab5 5521 info.child_tidptr = child_tidptr;
7cfbd386
PM		 5522 }
5523 if (flags & CLONE_PARENT_SETTID) {
d865bab5 5524 info.parent_tidptr = parent_tidptr;
7cfbd386 5525 }
d865bab5
PB		 5526
5527 ret = pthread_attr_init(&attr);
48e15fc2
NF		 5528 ret = pthread_attr_setstacksize(&attr, NEW_STACK_SIZE);
5529 ret = pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
d865bab5
PB		 5530 /* It is not safe to deliver signals until the child has finished
5531 initializing, so temporarily block all signals. */
5532 sigfillset(&sigmask);
5533 sigprocmask(SIG_BLOCK, &sigmask, &info.sigmask);
5534
b67cb68b
AB		 5535 /* If this is our first additional thread, we need to ensure we
5536 * generate code for parallel execution and flush old translations.
5537 */
5538 if (!parallel_cpus) {
5539 parallel_cpus = true;
5540 tb_flush(cpu);
5541 }
5542
d865bab5 5543 ret = pthread_create(&info.thread, &attr, clone_func, &info);
c2764719 5544 /* TODO: Free new CPU state if thread creation failed. */
d865bab5
PB		 5545
5546 sigprocmask(SIG_SETMASK, &info.sigmask, NULL);
5547 pthread_attr_destroy(&attr);
5548 if (ret == 0) {
5549 /* Wait for the child to initialize. */
5550 pthread_cond_wait(&info.cond, &info.mutex);
5551 ret = info.tid;
d865bab5
PB		 5552 } else {
5553 ret = -1;
5554 }
5555 pthread_mutex_unlock(&info.mutex);
5556 pthread_cond_destroy(&info.cond);
5557 pthread_mutex_destroy(&info.mutex);
5558 pthread_mutex_unlock(&clone_lock);
1b6b029e
FB		 5559 } else {
5560 /* if no CLONE_VM, we consider it is a fork */
5ea2fc84
PM		 5561 if (flags & CLONE_INVALID_FORK_FLAGS) {
5562 return -TARGET_EINVAL;
5563 }
5564
5565 /* We can't support custom termination signals */
5566 if ((flags & CSIGNAL) != TARGET_SIGCHLD) {
93b4eff8
TB		 5567 return -TARGET_EINVAL;
5568 }
7d92d34e
TB		 5569
5570 if (block_signals()) {
5571 return -TARGET_ERESTARTSYS;
5572 }
5573
d865bab5 5574 fork_start();
1b6b029e 5575 ret = fork();
d865bab5 5576 if (ret == 0) {
2b1319c8 5577 /* Child Process. */
d865bab5
PB		 5578 cpu_clone_regs(env, newsp);
5579 fork_end(1);
2b1319c8
AJ		 5580 /* There is a race condition here. The parent process could
5581 theoretically read the TID in the child process before the child
5582 tid is set. This would require using either ptrace
5583 (not implemented) or having *_tidptr to point at a shared memory
5584 mapping. We can't repeat the spinlock hack used above because
5585 the child process gets its own copy of the lock. */
d865bab5
PB		 5586 if (flags & CLONE_CHILD_SETTID)
5587 put_user_u32(gettid(), child_tidptr);
5588 if (flags & CLONE_PARENT_SETTID)
5589 put_user_u32(gettid(), parent_tidptr);
0429a971 5590 ts = (TaskState *)cpu->opaque;
d865bab5
PB		 5591 if (flags & CLONE_SETTLS)
5592 cpu_set_tls (env, newtls);
c2764719
PB		 5593 if (flags & CLONE_CHILD_CLEARTID)
5594 ts->child_tidptr = child_tidptr;
d865bab5
PB		 5595 } else {
5596 fork_end(0);
5597 }
1b6b029e
FB		 5598 }
5599 return ret;
5600}
5601
5f106811
APR		 5602/* warning : doesn't handle linux specific flags... */
5603static int target_to_host_fcntl_cmd(int cmd)
5604{
4a545761
SB		 5605 int ret;
5606
5f106811 5607 switch(cmd) {
4a545761
SB		 5608 case TARGET_F_DUPFD:
5609 case TARGET_F_GETFD:
5610 case TARGET_F_SETFD:
5611 case TARGET_F_GETFL:
5612 case TARGET_F_SETFL:
5613 ret = cmd;
5614 break;
5615 case TARGET_F_GETLK:
5616 ret = F_GETLK64;
5617 break;
5618 case TARGET_F_SETLK:
5619 ret = F_SETLK64;
5620 break;
5621 case TARGET_F_SETLKW:
5622 ret = F_SETLKW64;
5623 break;
5624 case TARGET_F_GETOWN:
5625 ret = F_GETOWN;
5626 break;
5627 case TARGET_F_SETOWN:
5628 ret = F_SETOWN;
5629 break;
5630 case TARGET_F_GETSIG:
5631 ret = F_GETSIG;
5632 break;
5633 case TARGET_F_SETSIG:
5634 ret = F_SETSIG;
5635 break;
5f106811 5636#if TARGET_ABI_BITS == 32
4a545761
SB		 5637 case TARGET_F_GETLK64:
5638 ret = F_GETLK64;
5639 break;
5640 case TARGET_F_SETLK64:
5641 ret = F_SETLK64;
5642 break;
5643 case TARGET_F_SETLKW64:
5644 ret = F_SETLKW64;
5645 break;
5f106811 5646#endif
4a545761
SB		 5647 case TARGET_F_SETLEASE:
5648 ret = F_SETLEASE;
5649 break;
5650 case TARGET_F_GETLEASE:
5651 ret = F_GETLEASE;
5652 break;
fbd5de9b 5653#ifdef F_DUPFD_CLOEXEC
4a545761
SB		 5654 case TARGET_F_DUPFD_CLOEXEC:
5655 ret = F_DUPFD_CLOEXEC;
5656 break;
fbd5de9b 5657#endif
4a545761
SB		 5658 case TARGET_F_NOTIFY:
5659 ret = F_NOTIFY;
5660 break;
8d5d3004 5661#ifdef F_GETOWN_EX
4a545761
SB		 5662 case TARGET_F_GETOWN_EX:
5663 ret = F_GETOWN_EX;
5664 break;
8d5d3004
AS		 5665#endif
5666#ifdef F_SETOWN_EX
4a545761
SB		 5667 case TARGET_F_SETOWN_EX:
5668 ret = F_SETOWN_EX;
5669 break;
8d5d3004 5670#endif
ddf31aa8 5671#ifdef F_SETPIPE_SZ
4a545761
SB		 5672 case TARGET_F_SETPIPE_SZ:
5673 ret = F_SETPIPE_SZ;
5674 break;
5675 case TARGET_F_GETPIPE_SZ:
5676 ret = F_GETPIPE_SZ;
5677 break;
ddf31aa8 5678#endif
4a545761
SB		 5679 default:
5680 ret = -TARGET_EINVAL;
5681 break;
5682 }
5683
5684#if defined(__powerpc64__)
5685 /* On PPC64, glibc headers has the F_*LK* defined to 12, 13 and 14 and
5686 * is not supported by kernel. The glibc fcntl call actually adjusts
5687 * them to 5, 6 and 7 before making the syscall(). Since we make the
5688 * syscall directly, adjust to what is supported by the kernel.
5689 */
5690 if (ret >= F_GETLK64 && ret <= F_SETLKW64) {
5691 ret -= F_GETLK64 - 5;
5f106811 5692 }
4a545761
SB		 5693#endif
5694
5695 return ret;
5f106811
APR		 5696}
5697
ae68ad9f
LV		 5698#define FLOCK_TRANSTBL \
5699 switch (type) { \
5700 TRANSTBL_CONVERT(F_RDLCK); \
5701 TRANSTBL_CONVERT(F_WRLCK); \
5702 TRANSTBL_CONVERT(F_UNLCK); \
5703 TRANSTBL_CONVERT(F_EXLCK); \
5704 TRANSTBL_CONVERT(F_SHLCK); \
5705 }
5706
5707static int target_to_host_flock(int type)
5708{
5709#define TRANSTBL_CONVERT(a) case TARGET_##a: return a
5710 FLOCK_TRANSTBL
5711#undef TRANSTBL_CONVERT
5712 return -TARGET_EINVAL;
5713}
5714
5715static int host_to_target_flock(int type)
5716{
5717#define TRANSTBL_CONVERT(a) case a: return TARGET_##a
5718 FLOCK_TRANSTBL
5719#undef TRANSTBL_CONVERT
5720 /* if we don't know how to convert the value coming
5721 * from the host we copy to the target field as-is
5722 */
5723 return type;
5724}
2ba7f730 5725
213d3e9e
PM		 5726static inline abi_long copy_from_user_flock(struct flock64 *fl,
5727 abi_ulong target_flock_addr)
7775e9ec 5728{
53a5960a 5729 struct target_flock *target_fl;
ae68ad9f 5730 int l_type;
213d3e9e
PM		 5731
5732 if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) {
5733 return -TARGET_EFAULT;
5734 }
5735
5736 __get_user(l_type, &target_fl->l_type);
ae68ad9f
LV		 5737 l_type = target_to_host_flock(l_type);
5738 if (l_type < 0) {
5739 return l_type;
5740 }
5741 fl->l_type = l_type;
213d3e9e
PM		 5742 __get_user(fl->l_whence, &target_fl->l_whence);
5743 __get_user(fl->l_start, &target_fl->l_start);
5744 __get_user(fl->l_len, &target_fl->l_len);
5745 __get_user(fl->l_pid, &target_fl->l_pid);
5746 unlock_user_struct(target_fl, target_flock_addr, 0);
5747 return 0;
5748}
5749
5750static inline abi_long copy_to_user_flock(abi_ulong target_flock_addr,
5751 const struct flock64 *fl)
5752{
5753 struct target_flock *target_fl;
5754 short l_type;
5755
5756 if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) {
5757 return -TARGET_EFAULT;
5758 }
5759
ae68ad9f 5760 l_type = host_to_target_flock(fl->l_type);
213d3e9e
PM		 5761 __put_user(l_type, &target_fl->l_type);
5762 __put_user(fl->l_whence, &target_fl->l_whence);
5763 __put_user(fl->l_start, &target_fl->l_start);
5764 __put_user(fl->l_len, &target_fl->l_len);
5765 __put_user(fl->l_pid, &target_fl->l_pid);
5766 unlock_user_struct(target_fl, target_flock_addr, 1);
5767 return 0;
5768}
5769
5770typedef abi_long from_flock64_fn(struct flock64 *fl, abi_ulong target_addr);
5771typedef abi_long to_flock64_fn(abi_ulong target_addr, const struct flock64 *fl);
5772
5773#if defined(TARGET_ARM) && TARGET_ABI_BITS == 32
7f254c5c 5774static inline abi_long copy_from_user_oabi_flock64(struct flock64 *fl,
213d3e9e
PM		 5775 abi_ulong target_flock_addr)
5776{
7f254c5c 5777 struct target_oabi_flock64 *target_fl;
ae68ad9f 5778 int l_type;
213d3e9e
PM		 5779
5780 if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) {
5781 return -TARGET_EFAULT;
5782 }
5783
5784 __get_user(l_type, &target_fl->l_type);
ae68ad9f
LV		 5785 l_type = target_to_host_flock(l_type);
5786 if (l_type < 0) {
5787 return l_type;
5788 }
5789 fl->l_type = l_type;
213d3e9e
PM		 5790 __get_user(fl->l_whence, &target_fl->l_whence);
5791 __get_user(fl->l_start, &target_fl->l_start);
5792 __get_user(fl->l_len, &target_fl->l_len);
5793 __get_user(fl->l_pid, &target_fl->l_pid);
5794 unlock_user_struct(target_fl, target_flock_addr, 0);
5795 return 0;
5796}
5797
7f254c5c 5798static inline abi_long copy_to_user_oabi_flock64(abi_ulong target_flock_addr,
213d3e9e
PM		 5799 const struct flock64 *fl)
5800{
7f254c5c 5801 struct target_oabi_flock64 *target_fl;
213d3e9e
PM		 5802 short l_type;
5803
5804 if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) {
5805 return -TARGET_EFAULT;
5806 }
5807
ae68ad9f 5808 l_type = host_to_target_flock(fl->l_type);
213d3e9e
PM		 5809 __put_user(l_type, &target_fl->l_type);
5810 __put_user(fl->l_whence, &target_fl->l_whence);
5811 __put_user(fl->l_start, &target_fl->l_start);
5812 __put_user(fl->l_len, &target_fl->l_len);
5813 __put_user(fl->l_pid, &target_fl->l_pid);
5814 unlock_user_struct(target_fl, target_flock_addr, 1);
5815 return 0;
5816}
5817#endif
5818
5819static inline abi_long copy_from_user_flock64(struct flock64 *fl,
5820 abi_ulong target_flock_addr)
5821{
5822 struct target_flock64 *target_fl;
ae68ad9f 5823 int l_type;
213d3e9e
PM		 5824
5825 if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) {
5826 return -TARGET_EFAULT;
5827 }
5828
5829 __get_user(l_type, &target_fl->l_type);
ae68ad9f
LV		 5830 l_type = target_to_host_flock(l_type);
5831 if (l_type < 0) {
5832 return l_type;
5833 }
5834 fl->l_type = l_type;
213d3e9e
PM		 5835 __get_user(fl->l_whence, &target_fl->l_whence);
5836 __get_user(fl->l_start, &target_fl->l_start);
5837 __get_user(fl->l_len, &target_fl->l_len);
5838 __get_user(fl->l_pid, &target_fl->l_pid);
5839 unlock_user_struct(target_fl, target_flock_addr, 0);
5840 return 0;
5841}
5842
5843static inline abi_long copy_to_user_flock64(abi_ulong target_flock_addr,
5844 const struct flock64 *fl)
5845{
5846 struct target_flock64 *target_fl;
5847 short l_type;
5848
5849 if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) {
5850 return -TARGET_EFAULT;
5851 }
5852
ae68ad9f 5853 l_type = host_to_target_flock(fl->l_type);
213d3e9e
PM		 5854 __put_user(l_type, &target_fl->l_type);
5855 __put_user(fl->l_whence, &target_fl->l_whence);
5856 __put_user(fl->l_start, &target_fl->l_start);
5857 __put_user(fl->l_len, &target_fl->l_len);
5858 __put_user(fl->l_pid, &target_fl->l_pid);
5859 unlock_user_struct(target_fl, target_flock_addr, 1);
5860 return 0;
5861}
5862
5863static abi_long do_fcntl(int fd, int cmd, abi_ulong arg)
5864{
43f238d7 5865 struct flock64 fl64;
8d5d3004
AS		 5866#ifdef F_GETOWN_EX
5867 struct f_owner_ex fox;
5868 struct target_f_owner_ex *target_fox;
5869#endif
992f48a0 5870 abi_long ret;
5f106811
APR		 5871 int host_cmd = target_to_host_fcntl_cmd(cmd);
5872
5873 if (host_cmd == -TARGET_EINVAL)
5874 return host_cmd;
53a5960a 5875
7775e9ec
FB		 5876 switch(cmd) {
5877 case TARGET_F_GETLK:
213d3e9e
PM		 5878 ret = copy_from_user_flock(&fl64, arg);
5879 if (ret) {
5880 return ret;
5881 }
435da5e7 5882 ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
7775e9ec 5883 if (ret == 0) {
213d3e9e 5884 ret = copy_to_user_flock(arg, &fl64);
7775e9ec
FB		 5885 }
5886 break;
3b46e624 5887
7775e9ec
FB		 5888 case TARGET_F_SETLK:
5889 case TARGET_F_SETLKW:
213d3e9e
PM		 5890 ret = copy_from_user_flock(&fl64, arg);
5891 if (ret) {
5892 return ret;
5893 }
435da5e7 5894 ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
7775e9ec 5895 break;
3b46e624 5896
7775e9ec 5897 case TARGET_F_GETLK64:
213d3e9e
PM		 5898 ret = copy_from_user_flock64(&fl64, arg);
5899 if (ret) {
5900 return ret;
5901 }
435da5e7 5902 ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
43f238d7 5903 if (ret == 0) {
213d3e9e 5904 ret = copy_to_user_flock64(arg, &fl64);
43f238d7 5905 }
9ee1fa2c 5906 break;
7775e9ec
FB		 5907 case TARGET_F_SETLK64:
5908 case TARGET_F_SETLKW64:
213d3e9e
PM		 5909 ret = copy_from_user_flock64(&fl64, arg);
5910 if (ret) {
5911 return ret;
5912 }
435da5e7 5913 ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
7775e9ec
FB		 5914 break;
5915
5f106811 5916 case TARGET_F_GETFL:
435da5e7 5917 ret = get_errno(safe_fcntl(fd, host_cmd, arg));
9ee1fa2c
FB		 5918 if (ret >= 0) {
5919 ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
5920 }
ffa65c3b
FB		 5921 break;
5922
5f106811 5923 case TARGET_F_SETFL:
435da5e7
PM		 5924 ret = get_errno(safe_fcntl(fd, host_cmd,
5925 target_to_host_bitmask(arg,
5926 fcntl_flags_tbl)));
5f106811
APR		 5927 break;
5928
8d5d3004
AS		 5929#ifdef F_GETOWN_EX
5930 case TARGET_F_GETOWN_EX:
435da5e7 5931 ret = get_errno(safe_fcntl(fd, host_cmd, &fox));
8d5d3004
AS		 5932 if (ret >= 0) {
5933 if (!lock_user_struct(VERIFY_WRITE, target_fox, arg, 0))
5934 return -TARGET_EFAULT;
5935 target_fox->type = tswap32(fox.type);
5936 target_fox->pid = tswap32(fox.pid);
5937 unlock_user_struct(target_fox, arg, 1);
5938 }
5939 break;
5940#endif
5941
5942#ifdef F_SETOWN_EX
5943 case TARGET_F_SETOWN_EX:
5944 if (!lock_user_struct(VERIFY_READ, target_fox, arg, 1))
5945 return -TARGET_EFAULT;
5946 fox.type = tswap32(target_fox->type);
5947 fox.pid = tswap32(target_fox->pid);
5948 unlock_user_struct(target_fox, arg, 0);
435da5e7 5949 ret = get_errno(safe_fcntl(fd, host_cmd, &fox));
8d5d3004
AS		 5950 break;
5951#endif
5952
5f106811
APR		 5953 case TARGET_F_SETOWN:
5954 case TARGET_F_GETOWN:
5955 case TARGET_F_SETSIG:
5956 case TARGET_F_GETSIG:
7e22e546
UH		 5957 case TARGET_F_SETLEASE:
5958 case TARGET_F_GETLEASE:
7e3b92ec
PM		 5959 case TARGET_F_SETPIPE_SZ:
5960 case TARGET_F_GETPIPE_SZ:
435da5e7 5961 ret = get_errno(safe_fcntl(fd, host_cmd, arg));
ffa65c3b
FB		 5962 break;
5963
7775e9ec 5964 default:
435da5e7 5965 ret = get_errno(safe_fcntl(fd, cmd, arg));
7775e9ec
FB		 5966 break;
5967 }
5968 return ret;
5969}
5970
67867308 5971#ifdef USE_UID16
7775e9ec 5972
67867308
FB		 5973static inline int high2lowuid(int uid)
5974{
5975 if (uid > 65535)
5976 return 65534;
5977 else
5978 return uid;
5979}
5980
5981static inline int high2lowgid(int gid)
5982{
5983 if (gid > 65535)
5984 return 65534;
5985 else
5986 return gid;
5987}
5988
5989static inline int low2highuid(int uid)
5990{
5991 if ((int16_t)uid == -1)
5992 return -1;
5993 else
5994 return uid;
5995}
5996
5997static inline int low2highgid(int gid)
5998{
5999 if ((int16_t)gid == -1)
6000 return -1;
6001 else
6002 return gid;
6003}
0c866a7e
RV		 6004static inline int tswapid(int id)
6005{
6006 return tswap16(id);
6007}
76ca310a
PM		 6008
6009#define put_user_id(x, gaddr) put_user_u16(x, gaddr)
6010
0c866a7e
RV		 6011#else /* !USE_UID16 */
6012static inline int high2lowuid(int uid)
6013{
6014 return uid;
6015}
6016static inline int high2lowgid(int gid)
6017{
6018 return gid;
6019}
6020static inline int low2highuid(int uid)
6021{
6022 return uid;
6023}
6024static inline int low2highgid(int gid)
6025{
6026 return gid;
6027}
6028static inline int tswapid(int id)
6029{
6030 return tswap32(id);
6031}
76ca310a
PM		 6032
6033#define put_user_id(x, gaddr) put_user_u32(x, gaddr)
6034
67867308 6035#endif /* USE_UID16 */
1b6b029e 6036
fd6f7798
PM		 6037/* We must do direct syscalls for setting UID/GID, because we want to
6038 * implement the Linux system call semantics of "change only for this thread",
6039 * not the libc/POSIX semantics of "change for all threads in process".
6040 * (See http://ewontfix.com/17/ for more details.)
6041 * We use the 32-bit version of the syscalls if present; if it is not
6042 * then either the host architecture supports 32-bit UIDs natively with
6043 * the standard syscall, or the 16-bit UID is the best we can do.
6044 */
6045#ifdef __NR_setuid32
6046#define __NR_sys_setuid __NR_setuid32
6047#else
6048#define __NR_sys_setuid __NR_setuid
6049#endif
6050#ifdef __NR_setgid32
6051#define __NR_sys_setgid __NR_setgid32
6052#else
6053#define __NR_sys_setgid __NR_setgid
6054#endif
6055#ifdef __NR_setresuid32
6056#define __NR_sys_setresuid __NR_setresuid32
6057#else
6058#define __NR_sys_setresuid __NR_setresuid
6059#endif
6060#ifdef __NR_setresgid32
6061#define __NR_sys_setresgid __NR_setresgid32
6062#else
6063#define __NR_sys_setresgid __NR_setresgid
6064#endif
6065
6066_syscall1(int, sys_setuid, uid_t, uid)
6067_syscall1(int, sys_setgid, gid_t, gid)
6068_syscall3(int, sys_setresuid, uid_t, ruid, uid_t, euid, uid_t, suid)
6069_syscall3(int, sys_setresgid, gid_t, rgid, gid_t, egid, gid_t, sgid)
6070
31e31b8a
FB		 6071void syscall_init(void)
6072{
2ab83ea7
FB		 6073 IOCTLEntry *ie;
6074 const argtype *arg_type;
6075 int size;
b92c47c1 6076 int i;
2ab83ea7 6077
8be656b8
AG		 6078 thunk_init(STRUCT_MAX);
6079
001faf32 6080#define STRUCT(name, ...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def);
5fafdf24 6081#define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def);
31e31b8a
FB		 6082#include "syscall_types.h"
6083#undef STRUCT
6084#undef STRUCT_SPECIAL
2ab83ea7 6085
dd6e957a
PM		 6086 /* Build target_to_host_errno_table[] table from
6087 * host_to_target_errno_table[]. */
6088 for (i = 0; i < ERRNO_TABLE_SIZE; i++) {
6089 target_to_host_errno_table[host_to_target_errno_table[i]] = i;
6090 }
6091
2ab83ea7
FB		 6092 /* we patch the ioctl size if necessary. We rely on the fact that
6093 no ioctl has all the bits at '1' in the size field */
6094 ie = ioctl_entries;
6095 while (ie->target_cmd != 0) {
6096 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
6097 TARGET_IOC_SIZEMASK) {
6098 arg_type = ie->arg_type;
6099 if (arg_type[0] != TYPE_PTR) {
5fafdf24 6100 fprintf(stderr, "cannot patch size for ioctl 0x%x\n",
2ab83ea7
FB		 6101 ie->target_cmd);
6102 exit(1);
6103 }
6104 arg_type++;
6105 size = thunk_type_size(arg_type, 0);
5fafdf24 6106 ie->target_cmd = (ie->target_cmd &
2ab83ea7
FB		 6107 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
6108 (size << TARGET_IOC_SIZESHIFT);
6109 }
b92c47c1 6110
2ab83ea7 6111 /* automatic consistency check if same arch */
872ea0c0
AZ		 6112#if (defined(__i386__) && defined(TARGET_I386) && defined(TARGET_ABI32)) || \
6113 (defined(__x86_64__) && defined(TARGET_X86_64))
6114 if (unlikely(ie->target_cmd != ie->host_cmd)) {
6115 fprintf(stderr, "ERROR: ioctl(%s): target=0x%x host=0x%x\n",
6116 ie->name, ie->target_cmd, ie->host_cmd);
2ab83ea7
FB		 6117 }
6118#endif
6119 ie++;
6120 }
31e31b8a 6121}
c573ff67 6122
992f48a0 6123#if TARGET_ABI_BITS == 32
ce4defa0
PB		 6124static inline uint64_t target_offset64(uint32_t word0, uint32_t word1)
6125{
af325d36 6126#ifdef TARGET_WORDS_BIGENDIAN
ce4defa0
PB		 6127 return ((uint64_t)word0 << 32) | word1;
6128#else
6129 return ((uint64_t)word1 << 32) | word0;
6130#endif
6131}
992f48a0 6132#else /* TARGET_ABI_BITS == 32 */
32407103
JM		 6133static inline uint64_t target_offset64(uint64_t word0, uint64_t word1)
6134{
6135 return word0;
6136}
992f48a0 6137#endif /* TARGET_ABI_BITS != 32 */
ce4defa0
PB		 6138
6139#ifdef TARGET_NR_truncate64
992f48a0
BS		 6140static inline abi_long target_truncate64(void *cpu_env, const char *arg1,
6141 abi_long arg2,
6142 abi_long arg3,
6143 abi_long arg4)
ce4defa0 6144{
8bf8e9df 6145 if (regpairs_aligned(cpu_env, TARGET_NR_truncate64)) {
ce4defa0
PB		 6146 arg2 = arg3;
6147 arg3 = arg4;
48e515d4 6148 }
ce4defa0
PB		 6149 return get_errno(truncate64(arg1, target_offset64(arg2, arg3)));
6150}
6151#endif
6152
6153#ifdef TARGET_NR_ftruncate64
992f48a0
BS		 6154static inline abi_long target_ftruncate64(void *cpu_env, abi_long arg1,
6155 abi_long arg2,
6156 abi_long arg3,
6157 abi_long arg4)
ce4defa0 6158{
8bf8e9df 6159 if (regpairs_aligned(cpu_env, TARGET_NR_ftruncate64)) {
ce4defa0
PB		 6160 arg2 = arg3;
6161 arg3 = arg4;
48e515d4 6162 }
ce4defa0
PB		 6163 return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3)));
6164}
6165#endif
6166
579a97f7
FB		 6167static inline abi_long target_to_host_timespec(struct timespec *host_ts,
6168 abi_ulong target_addr)
53a5960a
PB		 6169{
6170 struct target_timespec *target_ts;
6171
579a97f7
FB		 6172 if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1))
6173 return -TARGET_EFAULT;
c7e35da3
PM		 6174 __get_user(host_ts->tv_sec, &target_ts->tv_sec);
6175 __get_user(host_ts->tv_nsec, &target_ts->tv_nsec);
53a5960a 6176 unlock_user_struct(target_ts, target_addr, 0);
b255bfa8 6177 return 0;
53a5960a
PB		 6178}
6179
579a97f7
FB		 6180static inline abi_long host_to_target_timespec(abi_ulong target_addr,
6181 struct timespec *host_ts)
53a5960a
PB		 6182{
6183 struct target_timespec *target_ts;
6184
579a97f7
FB		 6185 if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0))
6186 return -TARGET_EFAULT;
c7e35da3
PM		 6187 __put_user(host_ts->tv_sec, &target_ts->tv_sec);
6188 __put_user(host_ts->tv_nsec, &target_ts->tv_nsec);
53a5960a 6189 unlock_user_struct(target_ts, target_addr, 1);
b255bfa8 6190 return 0;
53a5960a
PB		 6191}
6192
f4f1e10a
ECL		 6193static inline abi_long target_to_host_itimerspec(struct itimerspec *host_itspec,
6194 abi_ulong target_addr)
6195{
6196 struct target_itimerspec *target_itspec;
6197
6198 if (!lock_user_struct(VERIFY_READ, target_itspec, target_addr, 1)) {
6199 return -TARGET_EFAULT;
6200 }
6201
6202 host_itspec->it_interval.tv_sec =
6203 tswapal(target_itspec->it_interval.tv_sec);
6204 host_itspec->it_interval.tv_nsec =
6205 tswapal(target_itspec->it_interval.tv_nsec);
6206 host_itspec->it_value.tv_sec = tswapal(target_itspec->it_value.tv_sec);
6207 host_itspec->it_value.tv_nsec = tswapal(target_itspec->it_value.tv_nsec);
6208
6209 unlock_user_struct(target_itspec, target_addr, 1);
6210 return 0;
6211}
6212
6213static inline abi_long host_to_target_itimerspec(abi_ulong target_addr,
6214 struct itimerspec *host_its)
6215{
6216 struct target_itimerspec *target_itspec;
6217
6218 if (!lock_user_struct(VERIFY_WRITE, target_itspec, target_addr, 0)) {
6219 return -TARGET_EFAULT;
6220 }
6221
6222 target_itspec->it_interval.tv_sec = tswapal(host_its->it_interval.tv_sec);
6223 target_itspec->it_interval.tv_nsec = tswapal(host_its->it_interval.tv_nsec);
6224
6225 target_itspec->it_value.tv_sec = tswapal(host_its->it_value.tv_sec);
6226 target_itspec->it_value.tv_nsec = tswapal(host_its->it_value.tv_nsec);
6227
6228 unlock_user_struct(target_itspec, target_addr, 0);
6229 return 0;
6230}
6231
19f59bce
AM		 6232static inline abi_long target_to_host_timex(struct timex *host_tx,
6233 abi_long target_addr)
6234{
6235 struct target_timex *target_tx;
6236
6237 if (!lock_user_struct(VERIFY_READ, target_tx, target_addr, 1)) {
6238 return -TARGET_EFAULT;
6239 }
6240
6241 __get_user(host_tx->modes, &target_tx->modes);
6242 __get_user(host_tx->offset, &target_tx->offset);
6243 __get_user(host_tx->freq, &target_tx->freq);
6244 __get_user(host_tx->maxerror, &target_tx->maxerror);
6245 __get_user(host_tx->esterror, &target_tx->esterror);
6246 __get_user(host_tx->status, &target_tx->status);
6247 __get_user(host_tx->constant, &target_tx->constant);
6248 __get_user(host_tx->precision, &target_tx->precision);
6249 __get_user(host_tx->tolerance, &target_tx->tolerance);
6250 __get_user(host_tx->time.tv_sec, &target_tx->time.tv_sec);
6251 __get_user(host_tx->time.tv_usec, &target_tx->time.tv_usec);
6252 __get_user(host_tx->tick, &target_tx->tick);
6253 __get_user(host_tx->ppsfreq, &target_tx->ppsfreq);
6254 __get_user(host_tx->jitter, &target_tx->jitter);
6255 __get_user(host_tx->shift, &target_tx->shift);
6256 __get_user(host_tx->stabil, &target_tx->stabil);
6257 __get_user(host_tx->jitcnt, &target_tx->jitcnt);
6258 __get_user(host_tx->calcnt, &target_tx->calcnt);
6259 __get_user(host_tx->errcnt, &target_tx->errcnt);
6260 __get_user(host_tx->stbcnt, &target_tx->stbcnt);
6261 __get_user(host_tx->tai, &target_tx->tai);
6262
6263 unlock_user_struct(target_tx, target_addr, 0);
6264 return 0;
6265}
6266
6267static inline abi_long host_to_target_timex(abi_long target_addr,
6268 struct timex *host_tx)
6269{
6270 struct target_timex *target_tx;
6271
6272 if (!lock_user_struct(VERIFY_WRITE, target_tx, target_addr, 0)) {
6273 return -TARGET_EFAULT;
6274 }
6275
6276 __put_user(host_tx->modes, &target_tx->modes);
6277 __put_user(host_tx->offset, &target_tx->offset);
6278 __put_user(host_tx->freq, &target_tx->freq);
6279 __put_user(host_tx->maxerror, &target_tx->maxerror);
6280 __put_user(host_tx->esterror, &target_tx->esterror);
6281 __put_user(host_tx->status, &target_tx->status);
6282 __put_user(host_tx->constant, &target_tx->constant);
6283 __put_user(host_tx->precision, &target_tx->precision);
6284 __put_user(host_tx->tolerance, &target_tx->tolerance);
6285 __put_user(host_tx->time.tv_sec, &target_tx->time.tv_sec);
6286 __put_user(host_tx->time.tv_usec, &target_tx->time.tv_usec);
6287 __put_user(host_tx->tick, &target_tx->tick);
6288 __put_user(host_tx->ppsfreq, &target_tx->ppsfreq);
6289 __put_user(host_tx->jitter, &target_tx->jitter);
6290 __put_user(host_tx->shift, &target_tx->shift);
6291 __put_user(host_tx->stabil, &target_tx->stabil);
6292 __put_user(host_tx->jitcnt, &target_tx->jitcnt);
6293 __put_user(host_tx->calcnt, &target_tx->calcnt);
6294 __put_user(host_tx->errcnt, &target_tx->errcnt);
6295 __put_user(host_tx->stbcnt, &target_tx->stbcnt);
6296 __put_user(host_tx->tai, &target_tx->tai);
6297
6298 unlock_user_struct(target_tx, target_addr, 1);
6299 return 0;
6300}
6301
6302
c065976f
PM		 6303static inline abi_long target_to_host_sigevent(struct sigevent *host_sevp,
6304 abi_ulong target_addr)
6305{
6306 struct target_sigevent *target_sevp;
6307
6308 if (!lock_user_struct(VERIFY_READ, target_sevp, target_addr, 1)) {
6309 return -TARGET_EFAULT;
6310 }
6311
6312 /* This union is awkward on 64 bit systems because it has a 32 bit
6313 * integer and a pointer in it; we follow the conversion approach
6314 * used for handling sigval types in signal.c so the guest should get
6315 * the correct value back even if we did a 64 bit byteswap and it's
6316 * using the 32 bit integer.
6317 */
6318 host_sevp->sigev_value.sival_ptr =
6319 (void *)(uintptr_t)tswapal(target_sevp->sigev_value.sival_ptr);
6320 host_sevp->sigev_signo =
6321 target_to_host_signal(tswap32(target_sevp->sigev_signo));
6322 host_sevp->sigev_notify = tswap32(target_sevp->sigev_notify);
6323 host_sevp->_sigev_un._tid = tswap32(target_sevp->_sigev_un._tid);
6324
6325 unlock_user_struct(target_sevp, target_addr, 1);
6326 return 0;
6327}
6328
6f6a4032
TM		 6329#if defined(TARGET_NR_mlockall)
6330static inline int target_to_host_mlockall_arg(int arg)
6331{
6332 int result = 0;
6333
6334 if (arg & TARGET_MLOCKALL_MCL_CURRENT) {
6335 result |= MCL_CURRENT;
6336 }
6337 if (arg & TARGET_MLOCKALL_MCL_FUTURE) {
6338 result |= MCL_FUTURE;
6339 }
6340 return result;
6341}
6342#endif
6343
4f7f8924
AR		 6344#if (defined(TARGET_NR_stat64) || defined(TARGET_NR_lstat64) || \
6345 defined(TARGET_NR_fstat64) || defined(TARGET_NR_fstatat64) || \
6346 defined(TARGET_NR_newfstatat))
6a24a778
AZ		 6347static inline abi_long host_to_target_stat64(void *cpu_env,
6348 abi_ulong target_addr,
6349 struct stat *host_st)
6350{
09701199 6351#if defined(TARGET_ARM) && defined(TARGET_ABI32)
6a24a778
AZ		 6352 if (((CPUARMState *)cpu_env)->eabi) {
6353 struct target_eabi_stat64 *target_st;
6354
6355 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
6356 return -TARGET_EFAULT;
6357 memset(target_st, 0, sizeof(struct target_eabi_stat64));
6358 __put_user(host_st->st_dev, &target_st->st_dev);
6359 __put_user(host_st->st_ino, &target_st->st_ino);
6360#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
6361 __put_user(host_st->st_ino, &target_st->__st_ino);
6362#endif
6363 __put_user(host_st->st_mode, &target_st->st_mode);
6364 __put_user(host_st->st_nlink, &target_st->st_nlink);
6365 __put_user(host_st->st_uid, &target_st->st_uid);
6366 __put_user(host_st->st_gid, &target_st->st_gid);
6367 __put_user(host_st->st_rdev, &target_st->st_rdev);
6368 __put_user(host_st->st_size, &target_st->st_size);
6369 __put_user(host_st->st_blksize, &target_st->st_blksize);
6370 __put_user(host_st->st_blocks, &target_st->st_blocks);
6371 __put_user(host_st->st_atime, &target_st->target_st_atime);
6372 __put_user(host_st->st_mtime, &target_st->target_st_mtime);
6373 __put_user(host_st->st_ctime, &target_st->target_st_ctime);
6374 unlock_user_struct(target_st, target_addr, 1);
6375 } else
6376#endif
6377 {
20d155bc 6378#if defined(TARGET_HAS_STRUCT_STAT64)
6a24a778 6379 struct target_stat64 *target_st;
20d155bc
SW		 6380#else
6381 struct target_stat *target_st;
9d33b76b 6382#endif
6a24a778
AZ		 6383
6384 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
6385 return -TARGET_EFAULT;
9d33b76b 6386 memset(target_st, 0, sizeof(*target_st));
6a24a778
AZ		 6387 __put_user(host_st->st_dev, &target_st->st_dev);
6388 __put_user(host_st->st_ino, &target_st->st_ino);
6389#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
6390 __put_user(host_st->st_ino, &target_st->__st_ino);
6391#endif
6392 __put_user(host_st->st_mode, &target_st->st_mode);
6393 __put_user(host_st->st_nlink, &target_st->st_nlink);
6394 __put_user(host_st->st_uid, &target_st->st_uid);
6395 __put_user(host_st->st_gid, &target_st->st_gid);
6396 __put_user(host_st->st_rdev, &target_st->st_rdev);
6397 /* XXX: better use of kernel struct */
6398 __put_user(host_st->st_size, &target_st->st_size);
6399 __put_user(host_st->st_blksize, &target_st->st_blksize);
6400 __put_user(host_st->st_blocks, &target_st->st_blocks);
6401 __put_user(host_st->st_atime, &target_st->target_st_atime);
6402 __put_user(host_st->st_mtime, &target_st->target_st_mtime);
6403 __put_user(host_st->st_ctime, &target_st->target_st_ctime);
6404 unlock_user_struct(target_st, target_addr, 1);
6405 }
6406
6407 return 0;
6408}
4f7f8924 6409#endif
6a24a778 6410
bd0c5661
PB		 6411/* ??? Using host futex calls even when target atomic operations
6412 are not really atomic probably breaks things. However implementing
6413 futexes locally would make futexes shared between multiple processes
6414 tricky. However they're probably useless because guest atomic
6415 operations won't work either. */
8fcd3692
BS		 6416static int do_futex(target_ulong uaddr, int op, int val, target_ulong timeout,
6417 target_ulong uaddr2, int val3)
bd0c5661
PB		 6418{
6419 struct timespec ts, *pts;
a16aae0c 6420 int base_op;
bd0c5661
PB		 6421
6422 /* ??? We assume FUTEX_* constants are the same on both host
6423 and target. */
a29ccd63 6424#ifdef FUTEX_CMD_MASK
a16aae0c 6425 base_op = op & FUTEX_CMD_MASK;
a29ccd63 6426#else
a16aae0c 6427 base_op = op;
a29ccd63 6428#endif
a16aae0c 6429 switch (base_op) {
bd0c5661 6430 case FUTEX_WAIT:
cce246e0 6431 case FUTEX_WAIT_BITSET:
bd0c5661
PB		 6432 if (timeout) {
6433 pts = &ts;
6434 target_to_host_timespec(pts, timeout);
6435 } else {
6436 pts = NULL;
6437 }
d509eeb1 6438 return get_errno(safe_futex(g2h(uaddr), op, tswap32(val),
cce246e0 6439 pts, NULL, val3));
bd0c5661 6440 case FUTEX_WAKE:
d509eeb1 6441 return get_errno(safe_futex(g2h(uaddr), op, val, NULL, NULL, 0));
bd0c5661 6442 case FUTEX_FD:
d509eeb1 6443 return get_errno(safe_futex(g2h(uaddr), op, val, NULL, NULL, 0));
bd0c5661 6444 case FUTEX_REQUEUE:
bd0c5661 6445 case FUTEX_CMP_REQUEUE:
a16aae0c
NF		 6446 case FUTEX_WAKE_OP:
6447 /* For FUTEX_REQUEUE, FUTEX_CMP_REQUEUE, and FUTEX_WAKE_OP, the
6448 TIMEOUT parameter is interpreted as a uint32_t by the kernel.
6449 But the prototype takes a `struct timespec *'; insert casts
6450 to satisfy the compiler. We do not need to tswap TIMEOUT
6451 since it's not compared to guest memory. */
6452 pts = (struct timespec *)(uintptr_t) timeout;
d509eeb1
PM		 6453 return get_errno(safe_futex(g2h(uaddr), op, val, pts,
6454 g2h(uaddr2),
6455 (base_op == FUTEX_CMP_REQUEUE
6456 ? tswap32(val3)
6457 : val3)));
bd0c5661
PB		 6458 default:
6459 return -TARGET_ENOSYS;
6460 }
6461}
0f0426f3
LV		 6462#if defined(TARGET_NR_name_to_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
6463static abi_long do_name_to_handle_at(abi_long dirfd, abi_long pathname,
6464 abi_long handle, abi_long mount_id,
6465 abi_long flags)
6466{
6467 struct file_handle *target_fh;
6468 struct file_handle *fh;
6469 int mid = 0;
6470 abi_long ret;
6471 char *name;
6472 unsigned int size, total_size;
6473
6474 if (get_user_s32(size, handle)) {
6475 return -TARGET_EFAULT;
6476 }
6477
6478 name = lock_user_string(pathname);
6479 if (!name) {
6480 return -TARGET_EFAULT;
6481 }
6482
6483 total_size = sizeof(struct file_handle) + size;
6484 target_fh = lock_user(VERIFY_WRITE, handle, total_size, 0);
6485 if (!target_fh) {
6486 unlock_user(name, pathname, 0);
6487 return -TARGET_EFAULT;
6488 }
6489
6490 fh = g_malloc0(total_size);
6491 fh->handle_bytes = size;
6492
6493 ret = get_errno(name_to_handle_at(dirfd, path(name), fh, &mid, flags));
6494 unlock_user(name, pathname, 0);
6495
6496 /* man name_to_handle_at(2):
6497 * Other than the use of the handle_bytes field, the caller should treat
6498 * the file_handle structure as an opaque data type
6499 */
6500
6501 memcpy(target_fh, fh, total_size);
6502 target_fh->handle_bytes = tswap32(fh->handle_bytes);
6503 target_fh->handle_type = tswap32(fh->handle_type);
6504 g_free(fh);
6505 unlock_user(target_fh, handle, total_size);
6506
6507 if (put_user_s32(mid, mount_id)) {
6508 return -TARGET_EFAULT;
6509 }
6510
6511 return ret;
6512
6513}
6514#endif
6515
6516#if defined(TARGET_NR_open_by_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
6517static abi_long do_open_by_handle_at(abi_long mount_fd, abi_long handle,
6518 abi_long flags)
6519{
6520 struct file_handle *target_fh;
6521 struct file_handle *fh;
6522 unsigned int size, total_size;
6523 abi_long ret;
6524
6525 if (get_user_s32(size, handle)) {
6526 return -TARGET_EFAULT;
6527 }
6528
6529 total_size = sizeof(struct file_handle) + size;
6530 target_fh = lock_user(VERIFY_READ, handle, total_size, 1);
6531 if (!target_fh) {
6532 return -TARGET_EFAULT;
6533 }
6534
e9d49d51 6535 fh = g_memdup(target_fh, total_size);
0f0426f3
LV		 6536 fh->handle_bytes = size;
6537 fh->handle_type = tswap32(target_fh->handle_type);
6538
6539 ret = get_errno(open_by_handle_at(mount_fd, fh,
6540 target_to_host_bitmask(flags, fcntl_flags_tbl)));
6541
6542 g_free(fh);
6543
6544 unlock_user(target_fh, handle, total_size);
6545
6546 return ret;
6547}
6548#endif
bd0c5661 6549
e36800c9
LV		 6550#if defined(TARGET_NR_signalfd) || defined(TARGET_NR_signalfd4)
6551
e36800c9
LV		 6552static abi_long do_signalfd4(int fd, abi_long mask, int flags)
6553{
6554 int host_flags;
6555 target_sigset_t *target_mask;
6556 sigset_t host_mask;
6557 abi_long ret;
6558
6559 if (flags & ~(TARGET_O_NONBLOCK | TARGET_O_CLOEXEC)) {
6560 return -TARGET_EINVAL;
6561 }
6562 if (!lock_user_struct(VERIFY_READ, target_mask, mask, 1)) {
6563 return -TARGET_EFAULT;
6564 }
6565
6566 target_to_host_sigset(&host_mask, target_mask);
6567
6568 host_flags = target_to_host_bitmask(flags, fcntl_flags_tbl);
6569
6570 ret = get_errno(signalfd(fd, &host_mask, host_flags));
6571 if (ret >= 0) {
6572 fd_trans_register(ret, &target_signalfd_trans);
6573 }
6574
6575 unlock_user_struct(target_mask, mask, 0);
6576
6577 return ret;
6578}
6579#endif
6580
1d9d8b55
PB		 6581/* Map host to target signal numbers for the wait family of syscalls.
6582 Assume all other status bits are the same. */
a05c6409 6583int host_to_target_waitstatus(int status)
1d9d8b55
PB		 6584{
6585 if (WIFSIGNALED(status)) {
6586 return host_to_target_signal(WTERMSIG(status)) | (status & ~0x7f);
6587 }
6588 if (WIFSTOPPED(status)) {
6589 return (host_to_target_signal(WSTOPSIG(status)) << 8)
6590 | (status & 0xff);
6591 }
6592 return status;
6593}
6594
76b94245
WVS		 6595static int open_self_cmdline(void *cpu_env, int fd)
6596{
58de8b96
AS		 6597 CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env);
6598 struct linux_binprm *bprm = ((TaskState *)cpu->opaque)->bprm;
6599 int i;
76b94245 6600
58de8b96
AS		 6601 for (i = 0; i < bprm->argc; i++) {
6602 size_t len = strlen(bprm->argv[i]) + 1;
76b94245 6603
58de8b96 6604 if (write(fd, bprm->argv[i], len) != len) {
76b94245 6605 return -1;
76b94245
WVS		 6606 }
6607 }
6608
58de8b96 6609 return 0;
76b94245
WVS		 6610}
6611
36c08d49
AG		 6612static int open_self_maps(void *cpu_env, int fd)
6613{
0429a971
AF		 6614 CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env);
6615 TaskState *ts = cpu->opaque;
1a49ef2a
AG		 6616 FILE *fp;
6617 char *line = NULL;
6618 size_t len = 0;
6619 ssize_t read;
6620
6621 fp = fopen("/proc/self/maps", "r");
6622 if (fp == NULL) {
a3ca7bb2 6623 return -1;
1a49ef2a 6624 }
36c08d49 6625
1a49ef2a
AG		 6626 while ((read = getline(&line, &len, fp)) != -1) {
6627 int fields, dev_maj, dev_min, inode;
6628 uint64_t min, max, offset;
6629 char flag_r, flag_w, flag_x, flag_p;
6630 char path[512] = "";
6631 fields = sscanf(line, "%"PRIx64"-%"PRIx64" %c%c%c%c %"PRIx64" %x:%x %d"
6632 " %512s", &min, &max, &flag_r, &flag_w, &flag_x,
6633 &flag_p, &offset, &dev_maj, &dev_min, &inode, path);
6634
6635 if ((fields < 10) || (fields > 11)) {
6636 continue;
6637 }
d67f4aaa
MI		 6638 if (h2g_valid(min)) {
6639 int flags = page_get_flags(h2g(min));
ebf9a363 6640 max = h2g_valid(max - 1) ? max : (uintptr_t)g2h(GUEST_ADDR_MAX) + 1;
d67f4aaa
MI		 6641 if (page_check_range(h2g(min), max - min, flags) == -1) {
6642 continue;
6643 }
6644 if (h2g(min) == ts->info->stack_limit) {
6645 pstrcpy(path, sizeof(path), " [stack]");
6646 }
3e23de15 6647 dprintf(fd, TARGET_ABI_FMT_ptr "-" TARGET_ABI_FMT_ptr
e24fed4e 6648 " %c%c%c%c %08" PRIx64 " %02x:%02x %d %s%s\n",
d67f4aaa 6649 h2g(min), h2g(max - 1) + 1, flag_r, flag_w,
1a49ef2a 6650 flag_x, flag_p, offset, dev_maj, dev_min, inode,
e24fed4e 6651 path[0] ? " " : "", path);
1a49ef2a
AG		 6652 }
6653 }
6654
6655 free(line);
6656 fclose(fp);
6657
36c08d49
AG		 6658 return 0;
6659}
6660
480b8e7d
AG		 6661static int open_self_stat(void *cpu_env, int fd)
6662{
0429a971
AF		 6663 CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env);
6664 TaskState *ts = cpu->opaque;
480b8e7d
AG		 6665 abi_ulong start_stack = ts->info->start_stack;
6666 int i;
6667
6668 for (i = 0; i < 44; i++) {
6669 char buf[128];
6670 int len;
6671 uint64_t val = 0;
6672
e0e65bee
FE		 6673 if (i == 0) {
6674 /* pid */
6675 val = getpid();
6676 snprintf(buf, sizeof(buf), "%"PRId64 " ", val);
6677 } else if (i == 1) {
6678 /* app name */
6679 snprintf(buf, sizeof(buf), "(%s) ", ts->bprm->argv[0]);
6680 } else if (i == 27) {
6681 /* stack bottom */
6682 val = start_stack;
6683 snprintf(buf, sizeof(buf), "%"PRId64 " ", val);
6684 } else {
6685 /* for the rest, there is MasterCard */
6686 snprintf(buf, sizeof(buf), "0%c", i == 43 ? '\n' : ' ');
480b8e7d 6687 }
e0e65bee 6688
480b8e7d
AG		 6689 len = strlen(buf);
6690 if (write(fd, buf, len) != len) {
6691 return -1;
6692 }
6693 }
6694
6695 return 0;
6696}
6697
257450ee
AG		 6698static int open_self_auxv(void *cpu_env, int fd)
6699{
0429a971
AF		 6700 CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env);
6701 TaskState *ts = cpu->opaque;
257450ee
AG		 6702 abi_ulong auxv = ts->info->saved_auxv;
6703 abi_ulong len = ts->info->auxv_len;
6704 char *ptr;
6705
6706 /*
6707 * Auxiliary vector is stored in target process stack.
6708 * read in whole auxv vector and copy it to file
6709 */
6710 ptr = lock_user(VERIFY_READ, auxv, len, 0);
6711 if (ptr != NULL) {
6712 while (len > 0) {
6713 ssize_t r;
6714 r = write(fd, ptr, len);
6715 if (r <= 0) {
6716 break;
6717 }
6718 len -= r;
6719 ptr += r;
6720 }
6721 lseek(fd, 0, SEEK_SET);
6722 unlock_user(ptr, auxv, len);
6723 }
6724
6725 return 0;
6726}
6727
463d8e73
AS		 6728static int is_proc_myself(const char *filename, const char *entry)
6729{
6730 if (!strncmp(filename, "/proc/", strlen("/proc/"))) {
6731 filename += strlen("/proc/");
6732 if (!strncmp(filename, "self/", strlen("self/"))) {
6733 filename += strlen("self/");
6734 } else if (*filename >= '1' && *filename <= '9') {
6735 char myself[80];
6736 snprintf(myself, sizeof(myself), "%d/", getpid());
6737 if (!strncmp(filename, myself, strlen(myself))) {
6738 filename += strlen(myself);
6739 } else {
6740 return 0;
6741 }
6742 } else {
6743 return 0;
6744 }
6745 if (!strcmp(filename, entry)) {
6746 return 1;
6747 }
6748 }
6749 return 0;
6750}
6751
de6b9933
LV		 6752#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
6753static int is_proc(const char *filename, const char *entry)
6754{
6755 return strcmp(filename, entry) == 0;
6756}
6757
6758static int open_net_route(void *cpu_env, int fd)
6759{
6760 FILE *fp;
6761 char *line = NULL;
6762 size_t len = 0;
6763 ssize_t read;
6764
6765 fp = fopen("/proc/net/route", "r");
6766 if (fp == NULL) {
a3ca7bb2 6767 return -1;
de6b9933
LV		 6768 }
6769
6770 /* read header */
6771
6772 read = getline(&line, &len, fp);
6773 dprintf(fd, "%s", line);
6774
6775 /* read routes */
6776
6777 while ((read = getline(&line, &len, fp)) != -1) {
6778 char iface[16];
6779 uint32_t dest, gw, mask;
6780 unsigned int flags, refcnt, use, metric, mtu, window, irtt;
9d0bd0cd
PM		 6781 int fields;
6782
6783 fields = sscanf(line,
6784 "%s\t%08x\t%08x\t%04x\t%d\t%d\t%d\t%08x\t%d\t%u\t%u\n",
6785 iface, &dest, &gw, &flags, &refcnt, &use, &metric,
6786 &mask, &mtu, &window, &irtt);
6787 if (fields != 11) {
6788 continue;
6789 }
de6b9933
LV		 6790 dprintf(fd, "%s\t%08x\t%08x\t%04x\t%d\t%d\t%d\t%08x\t%d\t%u\t%u\n",
6791 iface, tswap32(dest), tswap32(gw), flags, refcnt, use,
6792 metric, tswap32(mask), mtu, window, irtt);
6793 }
6794
6795 free(line);
6796 fclose(fp);
6797
6798 return 0;
6799}
6800#endif
6801
0b2effd7 6802static int do_openat(void *cpu_env, int dirfd, const char *pathname, int flags, mode_t mode)
3be14d05
AG		 6803{
6804 struct fake_open {
6805 const char *filename;
6806 int (*fill)(void *cpu_env, int fd);
de6b9933 6807 int (*cmp)(const char *s1, const char *s2);
3be14d05
AG		 6808 };
6809 const struct fake_open *fake_open;
6810 static const struct fake_open fakes[] = {
de6b9933
LV		 6811 { "maps", open_self_maps, is_proc_myself },
6812 { "stat", open_self_stat, is_proc_myself },
6813 { "auxv", open_self_auxv, is_proc_myself },
76b94245 6814 { "cmdline", open_self_cmdline, is_proc_myself },
de6b9933
LV		 6815#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
6816 { "/proc/net/route", open_net_route, is_proc },
6817#endif
6818 { NULL, NULL, NULL }
3be14d05
AG		 6819 };
6820
aa07f5ec
MO		 6821 if (is_proc_myself(pathname, "exe")) {
6822 int execfd = qemu_getauxval(AT_EXECFD);
c10a0738 6823 return execfd ? execfd : safe_openat(dirfd, exec_path, flags, mode);
aa07f5ec
MO		 6824 }
6825
3be14d05 6826 for (fake_open = fakes; fake_open->filename; fake_open++) {
de6b9933 6827 if (fake_open->cmp(pathname, fake_open->filename)) {
3be14d05
AG		 6828 break;
6829 }
6830 }
6831
6832 if (fake_open->filename) {
6833 const char *tmpdir;
6834 char filename[PATH_MAX];
6835 int fd, r;
6836
6837 /* create temporary file to map stat to */
6838 tmpdir = getenv("TMPDIR");
6839 if (!tmpdir)
6840 tmpdir = "/tmp";
6841 snprintf(filename, sizeof(filename), "%s/qemu-open.XXXXXX", tmpdir);
6842 fd = mkstemp(filename);
6843 if (fd < 0) {
6844 return fd;
6845 }
6846 unlink(filename);
6847
6848 if ((r = fake_open->fill(cpu_env, fd))) {
a3ca7bb2 6849 int e = errno;
3be14d05 6850 close(fd);
a3ca7bb2 6851 errno = e;
3be14d05
AG		 6852 return r;
6853 }
6854 lseek(fd, 0, SEEK_SET);
6855
6856 return fd;
6857 }
6858
c10a0738 6859 return safe_openat(dirfd, path(pathname), flags, mode);
3be14d05
AG		 6860}
6861
aecc8861
AG		 6862#define TIMER_MAGIC 0x0caf0000
6863#define TIMER_MAGIC_MASK 0xffff0000
6864
6865/* Convert QEMU provided timer ID back to internal 16bit index format */
6866static target_timer_t get_timer_id(abi_long arg)
6867{
6868 target_timer_t timerid = arg;
6869
6870 if ((timerid & TIMER_MAGIC_MASK) != TIMER_MAGIC) {
6871 return -TARGET_EINVAL;
6872 }
6873
6874 timerid &= 0xffff;
6875
6876 if (timerid >= ARRAY_SIZE(g_posix_timers)) {
6877 return -TARGET_EINVAL;
6878 }
6879
6880 return timerid;
6881}
6882
2e0a8713
ST		 6883static int target_to_host_cpu_mask(unsigned long *host_mask,
6884 size_t host_size,
6885 abi_ulong target_addr,
6886 size_t target_size)
6887{
6888 unsigned target_bits = sizeof(abi_ulong) * 8;
6889 unsigned host_bits = sizeof(*host_mask) * 8;
6890 abi_ulong *target_mask;
6891 unsigned i, j;
6892
6893 assert(host_size >= target_size);
6894
6895 target_mask = lock_user(VERIFY_READ, target_addr, target_size, 1);
6896 if (!target_mask) {
6897 return -TARGET_EFAULT;
6898 }
6899 memset(host_mask, 0, host_size);
6900
6901 for (i = 0 ; i < target_size / sizeof(abi_ulong); i++) {
6902 unsigned bit = i * target_bits;
6903 abi_ulong val;
6904
6905 __get_user(val, &target_mask[i]);
6906 for (j = 0; j < target_bits; j++, bit++) {
6907 if (val & (1UL << j)) {
6908 host_mask[bit / host_bits] |= 1UL << (bit % host_bits);
6909 }
6910 }
6911 }
6912
6913 unlock_user(target_mask, target_addr, 0);
6914 return 0;
6915}
6916
6917static int host_to_target_cpu_mask(const unsigned long *host_mask,
6918 size_t host_size,
6919 abi_ulong target_addr,
6920 size_t target_size)
6921{
6922 unsigned target_bits = sizeof(abi_ulong) * 8;
6923 unsigned host_bits = sizeof(*host_mask) * 8;
6924 abi_ulong *target_mask;
6925 unsigned i, j;
6926
6927 assert(host_size >= target_size);
6928
6929 target_mask = lock_user(VERIFY_WRITE, target_addr, target_size, 0);
6930 if (!target_mask) {
6931 return -TARGET_EFAULT;
6932 }
6933
6934 for (i = 0 ; i < target_size / sizeof(abi_ulong); i++) {
6935 unsigned bit = i * target_bits;
6936 abi_ulong val = 0;
6937
6938 for (j = 0; j < target_bits; j++, bit++) {
6939 if (host_mask[bit / host_bits] & (1UL << (bit % host_bits))) {
6940 val |= 1UL << j;
6941 }
6942 }
6943 __put_user(val, &target_mask[i]);
6944 }
6945
6946 unlock_user(target_mask, target_addr, target_size);
6947 return 0;
6948}
6949
dc1ce18b
RH		 6950/* This is an internal helper for do_syscall so that it is easier
6951 * to have a single return point, so that actions, such as logging
6952 * of syscall results, can be performed.
6953 * All errnos that do_syscall() returns must be -TARGET_<errcode>.
6954 */
6955static abi_long do_syscall1(void *cpu_env, int num, abi_long arg1,
6956 abi_long arg2, abi_long arg3, abi_long arg4,
6957 abi_long arg5, abi_long arg6, abi_long arg7,
6958 abi_long arg8)
31e31b8a 6959{
182735ef 6960 CPUState *cpu = ENV_GET_CPU(cpu_env);
992f48a0 6961 abi_long ret;
4f7f8924
AR		 6962#if defined(TARGET_NR_stat) || defined(TARGET_NR_stat64) \
6963 || defined(TARGET_NR_lstat) || defined(TARGET_NR_lstat64) \
6964 || defined(TARGET_NR_fstat) || defined(TARGET_NR_fstat64)
31e31b8a 6965 struct stat st;
4f7f8924
AR		 6966#endif
6967#if defined(TARGET_NR_statfs) || defined(TARGET_NR_statfs64) \
6968 || defined(TARGET_NR_fstatfs)
56c8f68f 6969 struct statfs stfs;
4f7f8924 6970#endif
53a5960a 6971 void *p;
3b46e624 6972
31e31b8a
FB		 6973 switch(num) {
6974 case TARGET_NR_exit:
9b056fcc
AF		 6975 /* In old applications this may be used to implement _exit(2).
6976 However in threaded applictions it is used for thread termination,
6977 and _exit_group is used for application termination.
6978 Do thread termination if we have more then one thread. */
a0995886
TB		 6979
6980 if (block_signals()) {
72eb7ea8 6981 return -TARGET_ERESTARTSYS;
a0995886
TB		 6982 }
6983
dd1f6349
AB		 6984 cpu_list_lock();
6985
bdc44640 6986 if (CPU_NEXT(first_cpu)) {
9b056fcc 6987 TaskState *ts;
9b056fcc 6988
9b056fcc 6989 /* Remove the CPU from the list. */
068a5ea0 6990 QTAILQ_REMOVE_RCU(&cpus, cpu, node);
dd1f6349 6991
9b056fcc 6992 cpu_list_unlock();
dd1f6349 6993
0429a971 6994 ts = cpu->opaque;
9b056fcc
AF		 6995 if (ts->child_tidptr) {
6996 put_user_u32(0, ts->child_tidptr);
6997 sys_futex(g2h(ts->child_tidptr), FUTEX_WAKE, INT_MAX,
6998 NULL, NULL, 0);
6999 }
a2247f8e 7000 thread_cpu = NULL;
0429a971 7001 object_unref(OBJECT(cpu));
9b056fcc 7002 g_free(ts);
70903763 7003 rcu_unregister_thread();
9b056fcc
AF		 7004 pthread_exit(NULL);
7005 }
dd1f6349
AB		 7006
7007 cpu_list_unlock();
708b6a64 7008 preexit_cleanup(cpu_env, arg1);
c2764719 7009 _exit(arg1);
72eb7ea8 7010 return 0; /* avoid warning */
31e31b8a 7011 case TARGET_NR_read:
72eb7ea8
RH		 7012 if (arg3 == 0) {
7013 return 0;
7014 } else {
38d840e6 7015 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
2852aafd 7016 return -TARGET_EFAULT;
50afd02b 7017 ret = get_errno(safe_read(arg1, p, arg3));
e36800c9 7018 if (ret >= 0 &&
5d4d3665
LV		 7019 fd_trans_host_to_target_data(arg1)) {
7020 ret = fd_trans_host_to_target_data(arg1)(p, ret);
e36800c9 7021 }
38d840e6
AJ		 7022 unlock_user(p, arg2, ret);
7023 }
72eb7ea8 7024 return ret;
31e31b8a 7025 case TARGET_NR_write:
58cfa6c2
TGJ		 7026 if (arg2 == 0 && arg3 == 0) {
7027 return get_errno(safe_write(arg1, 0, 0));
7028 }
579a97f7 7029 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
2852aafd 7030 return -TARGET_EFAULT;
04b9bcf9
LV		 7031 if (fd_trans_target_to_host_data(arg1)) {
7032 void *copy = g_malloc(arg3);
7033 memcpy(copy, p, arg3);
7034 ret = fd_trans_target_to_host_data(arg1)(copy, arg3);
7035 if (ret >= 0) {
7036 ret = get_errno(safe_write(arg1, copy, ret));
7037 }
7038 g_free(copy);
7039 } else {
7040 ret = get_errno(safe_write(arg1, p, arg3));
7041 }
53a5960a 7042 unlock_user(p, arg2, 0);
72eb7ea8
RH		 7043 return ret;
7044
704eff6c 7045#ifdef TARGET_NR_open
31e31b8a 7046 case TARGET_NR_open:
2f619698 7047 if (!(p = lock_user_string(arg1)))
2852aafd 7048 return -TARGET_EFAULT;
0b2effd7
RV		 7049 ret = get_errno(do_openat(cpu_env, AT_FDCWD, p,
7050 target_to_host_bitmask(arg2, fcntl_flags_tbl),
7051 arg3));
e36800c9 7052 fd_trans_unregister(ret);
53a5960a 7053 unlock_user(p, arg1, 0);
72eb7ea8 7054 return ret;
704eff6c 7055#endif
82424832 7056 case TARGET_NR_openat:
579a97f7 7057 if (!(p = lock_user_string(arg2)))
2852aafd 7058 return -TARGET_EFAULT;
0b2effd7
RV		 7059 ret = get_errno(do_openat(cpu_env, arg1, p,
7060 target_to_host_bitmask(arg3, fcntl_flags_tbl),
7061 arg4));
e36800c9 7062 fd_trans_unregister(ret);
579a97f7 7063 unlock_user(p, arg2, 0);
72eb7ea8 7064 return ret;
0f0426f3
LV		 7065#if defined(TARGET_NR_name_to_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
7066 case TARGET_NR_name_to_handle_at:
7067 ret = do_name_to_handle_at(arg1, arg2, arg3, arg4, arg5);
72eb7ea8 7068 return ret;
0f0426f3
LV		 7069#endif
7070#if defined(TARGET_NR_open_by_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
7071 case TARGET_NR_open_by_handle_at:
7072 ret = do_open_by_handle_at(arg1, arg2, arg3);
e36800c9 7073 fd_trans_unregister(ret);
72eb7ea8 7074 return ret;
0f0426f3 7075#endif
31e31b8a 7076 case TARGET_NR_close:
e36800c9 7077 fd_trans_unregister(arg1);
72eb7ea8
RH		 7078 return get_errno(close(arg1));
7079
31e31b8a 7080 case TARGET_NR_brk:
72eb7ea8 7081 return do_brk(arg1);
704eff6c 7082#ifdef TARGET_NR_fork
31e31b8a 7083 case TARGET_NR_fork:
72eb7ea8 7084 return get_errno(do_fork(cpu_env, TARGET_SIGCHLD, 0, 0, 0, 0));
704eff6c 7085#endif
e5febef5 7086#ifdef TARGET_NR_waitpid
31e31b8a
FB		 7087 case TARGET_NR_waitpid:
7088 {
53a5960a 7089 int status;
4af80a37 7090 ret = get_errno(safe_wait4(arg1, &status, arg3, 0));
5379557b 7091 if (!is_error(ret) && arg2 && ret
1d9d8b55 7092 && put_user_s32(host_to_target_waitstatus(status), arg2))
2852aafd 7093 return -TARGET_EFAULT;
31e31b8a 7094 }
72eb7ea8 7095 return ret;
e5febef5 7096#endif
f0cbb613
PB		 7097#ifdef TARGET_NR_waitid
7098 case TARGET_NR_waitid:
7099 {
7100 siginfo_t info;
7101 info.si_pid = 0;
4af80a37 7102 ret = get_errno(safe_waitid(arg1, arg2, &info, arg4, NULL));
f0cbb613 7103 if (!is_error(ret) && arg3 && info.si_pid != 0) {
c227f099 7104 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_siginfo_t), 0)))
2852aafd 7105 return -TARGET_EFAULT;
f0cbb613 7106 host_to_target_siginfo(p, &info);
c227f099 7107 unlock_user(p, arg3, sizeof(target_siginfo_t));
f0cbb613
PB		 7108 }
7109 }
72eb7ea8 7110 return ret;
f0cbb613 7111#endif
7a3148a9 7112#ifdef TARGET_NR_creat /* not on alpha */
31e31b8a 7113 case TARGET_NR_creat:
579a97f7 7114 if (!(p = lock_user_string(arg1)))
2852aafd 7115 return -TARGET_EFAULT;
53a5960a 7116 ret = get_errno(creat(p, arg2));
e36800c9 7117 fd_trans_unregister(ret);
53a5960a 7118 unlock_user(p, arg1, 0);
72eb7ea8 7119 return ret;
7a3148a9 7120#endif
704eff6c 7121#ifdef TARGET_NR_link
31e31b8a 7122 case TARGET_NR_link:
53a5960a
PB		 7123 {
7124 void * p2;
7125 p = lock_user_string(arg1);
7126 p2 = lock_user_string(arg2);
579a97f7
FB		 7127 if (!p || !p2)
7128 ret = -TARGET_EFAULT;
7129 else
7130 ret = get_errno(link(p, p2));
53a5960a
PB		 7131 unlock_user(p2, arg2, 0);
7132 unlock_user(p, arg1, 0);
7133 }
72eb7ea8 7134 return ret;
704eff6c 7135#endif
c0d472b1 7136#if defined(TARGET_NR_linkat)
64f0ce4c 7137 case TARGET_NR_linkat:
64f0ce4c
TS		 7138 {
7139 void * p2 = NULL;
579a97f7 7140 if (!arg2 || !arg4)
2852aafd 7141 return -TARGET_EFAULT;
64f0ce4c
TS		 7142 p = lock_user_string(arg2);
7143 p2 = lock_user_string(arg4);
579a97f7 7144 if (!p || !p2)
0da46a6e 7145 ret = -TARGET_EFAULT;
64f0ce4c 7146 else
c0d472b1 7147 ret = get_errno(linkat(arg1, p, arg3, p2, arg5));
579a97f7
FB		 7148 unlock_user(p, arg2, 0);
7149 unlock_user(p2, arg4, 0);
64f0ce4c 7150 }
72eb7ea8 7151 return ret;
64f0ce4c 7152#endif
704eff6c 7153#ifdef TARGET_NR_unlink
31e31b8a 7154 case TARGET_NR_unlink:
579a97f7 7155 if (!(p = lock_user_string(arg1)))
2852aafd 7156 return -TARGET_EFAULT;
53a5960a
PB		 7157 ret = get_errno(unlink(p));
7158 unlock_user(p, arg1, 0);
72eb7ea8 7159 return ret;
704eff6c 7160#endif
c0d472b1 7161#if defined(TARGET_NR_unlinkat)
8170f56b 7162 case TARGET_NR_unlinkat:
579a97f7 7163 if (!(p = lock_user_string(arg2)))
2852aafd 7164 return -TARGET_EFAULT;
c0d472b1 7165 ret = get_errno(unlinkat(arg1, p, arg3));
579a97f7 7166 unlock_user(p, arg2, 0);
72eb7ea8 7167 return ret;
b7d35e65 7168#endif
31e31b8a 7169 case TARGET_NR_execve:
7854b056
FB		 7170 {
7171 char **argp, **envp;
f7341ff4 7172 int argc, envc;
992f48a0
BS		 7173 abi_ulong gp;
7174 abi_ulong guest_argp;
7175 abi_ulong guest_envp;
7176 abi_ulong addr;
7854b056 7177 char **q;
a6f79cc9 7178 int total_size = 0;
7854b056 7179
f7341ff4 7180 argc = 0;
53a5960a 7181 guest_argp = arg2;
da94d263 7182 for (gp = guest_argp; gp; gp += sizeof(abi_ulong)) {
03aa1976 7183 if (get_user_ual(addr, gp))
2852aafd 7184 return -TARGET_EFAULT;
03aa1976 7185 if (!addr)
2f619698 7186 break;
7854b056 7187 argc++;
2f619698 7188 }
f7341ff4 7189 envc = 0;
53a5960a 7190 guest_envp = arg3;
da94d263 7191 for (gp = guest_envp; gp; gp += sizeof(abi_ulong)) {
03aa1976 7192 if (get_user_ual(addr, gp))
2852aafd 7193 return -TARGET_EFAULT;
03aa1976 7194 if (!addr)
2f619698 7195 break;
7854b056 7196 envc++;
2f619698 7197 }
7854b056 7198
b936cb50
PP		 7199 argp = g_new0(char *, argc + 1);
7200 envp = g_new0(char *, envc + 1);
7854b056 7201
da94d263 7202 for (gp = guest_argp, q = argp; gp;
992f48a0 7203 gp += sizeof(abi_ulong), q++) {
2f619698
FB		 7204 if (get_user_ual(addr, gp))
7205 goto execve_efault;
53a5960a
PB		 7206 if (!addr)
7207 break;
2f619698
FB		 7208 if (!(*q = lock_user_string(addr)))
7209 goto execve_efault;
a6f79cc9 7210 total_size += strlen(*q) + 1;
53a5960a 7211 }
f7341ff4
FB		 7212 *q = NULL;
7213
da94d263 7214 for (gp = guest_envp, q = envp; gp;
992f48a0 7215 gp += sizeof(abi_ulong), q++) {
2f619698
FB		 7216 if (get_user_ual(addr, gp))
7217 goto execve_efault;
53a5960a
PB		 7218 if (!addr)
7219 break;
2f619698
FB		 7220 if (!(*q = lock_user_string(addr)))
7221 goto execve_efault;
a6f79cc9 7222 total_size += strlen(*q) + 1;
53a5960a 7223 }
f7341ff4 7224 *q = NULL;
7854b056 7225
2f619698
FB		 7226 if (!(p = lock_user_string(arg1)))
7227 goto execve_efault;
ffdcbe22
TB		 7228 /* Although execve() is not an interruptible syscall it is
7229 * a special case where we must use the safe_syscall wrapper:
7230 * if we allow a signal to happen before we make the host
7231 * syscall then we will 'lose' it, because at the point of
7232 * execve the process leaves QEMU's control. So we use the
7233 * safe syscall wrapper to ensure that we either take the
7234 * signal as a guest signal, or else it does not happen
7235 * before the execve completes and makes it the other
7236 * program's problem.
7237 */
7238 ret = get_errno(safe_execve(p, argp, envp));
53a5960a
PB		 7239 unlock_user(p, arg1, 0);
7240
2f619698
FB		 7241 goto execve_end;
7242
7243 execve_efault:
7244 ret = -TARGET_EFAULT;
7245
7246 execve_end:
53a5960a 7247 for (gp = guest_argp, q = argp; *q;
992f48a0 7248 gp += sizeof(abi_ulong), q++) {
2f619698
FB		 7249 if (get_user_ual(addr, gp)
7250 || !addr)
7251 break;
53a5960a
PB		 7252 unlock_user(*q, addr, 0);
7253 }
7254 for (gp = guest_envp, q = envp; *q;
992f48a0 7255 gp += sizeof(abi_ulong), q++) {
2f619698
FB		 7256 if (get_user_ual(addr, gp)
7257 || !addr)
7258 break;
53a5960a
PB		 7259 unlock_user(*q, addr, 0);
7260 }
b936cb50
PP		 7261
7262 g_free(argp);
7263 g_free(envp);
7854b056 7264 }
72eb7ea8 7265 return ret;
31e31b8a 7266 case TARGET_NR_chdir:
579a97f7 7267 if (!(p = lock_user_string(arg1)))
2852aafd 7268 return -TARGET_EFAULT;
53a5960a
PB		 7269 ret = get_errno(chdir(p));
7270 unlock_user(p, arg1, 0);
72eb7ea8 7271 return ret;
a315a145 7272#ifdef TARGET_NR_time
31e31b8a
FB		 7273 case TARGET_NR_time:
7274 {
53a5960a
PB		 7275 time_t host_time;
7276 ret = get_errno(time(&host_time));
2f619698
FB		 7277 if (!is_error(ret)
7278 && arg1
7279 && put_user_sal(host_time, arg1))
2852aafd 7280 return -TARGET_EFAULT;
31e31b8a 7281 }
72eb7ea8 7282 return ret;
a315a145 7283#endif
704eff6c 7284#ifdef TARGET_NR_mknod
31e31b8a 7285 case TARGET_NR_mknod:
579a97f7 7286 if (!(p = lock_user_string(arg1)))
2852aafd 7287 return -TARGET_EFAULT;
53a5960a
PB		 7288 ret = get_errno(mknod(p, arg2, arg3));
7289 unlock_user(p, arg1, 0);
72eb7ea8 7290 return ret;
704eff6c 7291#endif
c0d472b1 7292#if defined(TARGET_NR_mknodat)
75ac37a0 7293 case TARGET_NR_mknodat:
579a97f7 7294 if (!(p = lock_user_string(arg2)))
2852aafd 7295 return -TARGET_EFAULT;
c0d472b1 7296 ret = get_errno(mknodat(arg1, p, arg3, arg4));
579a97f7 7297 unlock_user(p, arg2, 0);
72eb7ea8 7298 return ret;
75ac37a0 7299#endif
704eff6c 7300#ifdef TARGET_NR_chmod
31e31b8a 7301 case TARGET_NR_chmod:
579a97f7 7302 if (!(p = lock_user_string(arg1)))
2852aafd 7303 return -TARGET_EFAULT;
53a5960a
PB		 7304 ret = get_errno(chmod(p, arg2));
7305 unlock_user(p, arg1, 0);
72eb7ea8 7306 return ret;
704eff6c 7307#endif
4f7f8924 7308#ifdef TARGET_NR_lseek
31e31b8a 7309 case TARGET_NR_lseek:
72eb7ea8 7310 return get_errno(lseek(arg1, arg2, arg3));
4f7f8924 7311#endif
9231733a
RH		 7312#if defined(TARGET_NR_getxpid) && defined(TARGET_ALPHA)
7313 /* Alpha specific */
7a3148a9 7314 case TARGET_NR_getxpid:
9231733a 7315 ((CPUAlphaState *)cpu_env)->ir[IR_A4] = getppid();
72eb7ea8 7316 return get_errno(getpid());
7a3148a9 7317#endif
9231733a
RH		 7318#ifdef TARGET_NR_getpid
7319 case TARGET_NR_getpid:
72eb7ea8 7320 return get_errno(getpid());
9231733a 7321#endif
31e31b8a 7322 case TARGET_NR_mount:
356d771b
PB		 7323 {
7324 /* need to look at the data field */
7325 void *p2, *p3;
7326
7327 if (arg1) {
7328 p = lock_user_string(arg1);
7329 if (!p) {
2852aafd 7330 return -TARGET_EFAULT;
356d771b
PB		 7331 }
7332 } else {
7333 p = NULL;
7334 }
7335
7336 p2 = lock_user_string(arg2);
7337 if (!p2) {
7338 if (arg1) {
7339 unlock_user(p, arg1, 0);
7340 }
2852aafd 7341 return -TARGET_EFAULT;
356d771b
PB		 7342 }
7343
7344 if (arg3) {
7345 p3 = lock_user_string(arg3);
7346 if (!p3) {
7347 if (arg1) {
579a97f7 7348 unlock_user(p, arg1, 0);
356d771b
PB		 7349 }
7350 unlock_user(p2, arg2, 0);
2852aafd 7351 return -TARGET_EFAULT;
356d771b
PB		 7352 }
7353 } else {
7354 p3 = NULL;
7355 }
7356
7357 /* FIXME - arg5 should be locked, but it isn't clear how to
7358 * do that since it's not guaranteed to be a NULL-terminated
7359 * string.
7360 */
7361 if (!arg5) {
7362 ret = mount(p, p2, p3, (unsigned long)arg4, NULL);
7363 } else {
7364 ret = mount(p, p2, p3, (unsigned long)arg4, g2h(arg5));
7365 }
7366 ret = get_errno(ret);
7367
7368 if (arg1) {
7369 unlock_user(p, arg1, 0);
7370 }
7371 unlock_user(p2, arg2, 0);
7372 if (arg3) {
7373 unlock_user(p3, arg3, 0);
7374 }
7375 }
72eb7ea8 7376 return ret;
e5febef5 7377#ifdef TARGET_NR_umount
31e31b8a 7378 case TARGET_NR_umount:
579a97f7 7379 if (!(p = lock_user_string(arg1)))
2852aafd 7380 return -TARGET_EFAULT;
53a5960a
PB		 7381 ret = get_errno(umount(p));
7382 unlock_user(p, arg1, 0);
72eb7ea8 7383 return ret;
e5febef5 7384#endif
7a3148a9 7385#ifdef TARGET_NR_stime /* not on alpha */
31e31b8a
FB		 7386 case TARGET_NR_stime:
7387 {
53a5960a 7388 time_t host_time;
2f619698 7389 if (get_user_sal(host_time, arg1))
2852aafd 7390 return -TARGET_EFAULT;
72eb7ea8 7391 return get_errno(stime(&host_time));
31e31b8a 7392 }
7a3148a9 7393#endif
7a3148a9 7394#ifdef TARGET_NR_alarm /* not on alpha */
31e31b8a 7395 case TARGET_NR_alarm:
72eb7ea8 7396 return alarm(arg1);
7a3148a9 7397#endif
7a3148a9 7398#ifdef TARGET_NR_pause /* not on alpha */
31e31b8a 7399 case TARGET_NR_pause:
f59ec606
TB		 7400 if (!block_signals()) {
7401 sigsuspend(&((TaskState *)cpu->opaque)->signal_mask);
7402 }
72eb7ea8 7403 return -TARGET_EINTR;
7a3148a9 7404#endif
e5febef5 7405#ifdef TARGET_NR_utime
31e31b8a 7406 case TARGET_NR_utime:
ebc05488 7407 {
53a5960a
PB		 7408 struct utimbuf tbuf, *host_tbuf;
7409 struct target_utimbuf *target_tbuf;
7410 if (arg2) {
579a97f7 7411 if (!lock_user_struct(VERIFY_READ, target_tbuf, arg2, 1))
2852aafd 7412 return -TARGET_EFAULT;
cbb21eed
MB		 7413 tbuf.actime = tswapal(target_tbuf->actime);
7414 tbuf.modtime = tswapal(target_tbuf->modtime);
53a5960a
PB		 7415 unlock_user_struct(target_tbuf, arg2, 0);
7416 host_tbuf = &tbuf;
f72e8ff4 7417 } else {
53a5960a 7418 host_tbuf = NULL;
f72e8ff4 7419 }
579a97f7 7420 if (!(p = lock_user_string(arg1)))
2852aafd 7421 return -TARGET_EFAULT;
53a5960a
PB		 7422 ret = get_errno(utime(p, host_tbuf));
7423 unlock_user(p, arg1, 0);
ebc05488 7424 }
72eb7ea8 7425 return ret;
e5febef5 7426#endif
704eff6c 7427#ifdef TARGET_NR_utimes
978a66ff
FB		 7428 case TARGET_NR_utimes:
7429 {
978a66ff 7430 struct timeval *tvp, tv[2];
53a5960a 7431 if (arg2) {
788f5ec4
TS		 7432 if (copy_from_user_timeval(&tv[0], arg2)
7433 || copy_from_user_timeval(&tv[1],
7434 arg2 + sizeof(struct target_timeval)))
2852aafd 7435 return -TARGET_EFAULT;
978a66ff
FB		 7436 tvp = tv;
7437 } else {
7438 tvp = NULL;
7439 }
579a97f7 7440 if (!(p = lock_user_string(arg1)))
2852aafd 7441 return -TARGET_EFAULT;
53a5960a
PB		 7442 ret = get_errno(utimes(p, tvp));
7443 unlock_user(p, arg1, 0);
978a66ff 7444 }
72eb7ea8 7445 return ret;
704eff6c 7446#endif
c0d472b1 7447#if defined(TARGET_NR_futimesat)
ac8a6556
AZ		 7448 case TARGET_NR_futimesat:
7449 {
7450 struct timeval *tvp, tv[2];
7451 if (arg3) {
7452 if (copy_from_user_timeval(&tv[0], arg3)
7453 || copy_from_user_timeval(&tv[1],
7454 arg3 + sizeof(struct target_timeval)))
2852aafd 7455 return -TARGET_EFAULT;
ac8a6556
AZ		 7456 tvp = tv;
7457 } else {
7458 tvp = NULL;
7459 }
2852aafd
RH		 7460 if (!(p = lock_user_string(arg2))) {
7461 return -TARGET_EFAULT;
7462 }
c0d472b1 7463 ret = get_errno(futimesat(arg1, path(p), tvp));
ac8a6556
AZ		 7464 unlock_user(p, arg2, 0);
7465 }
72eb7ea8 7466 return ret;
ac8a6556 7467#endif
704eff6c 7468#ifdef TARGET_NR_access
31e31b8a 7469 case TARGET_NR_access:
2852aafd
RH		 7470 if (!(p = lock_user_string(arg1))) {
7471 return -TARGET_EFAULT;
7472 }
719f908e 7473 ret = get_errno(access(path(p), arg2));
53a5960a 7474 unlock_user(p, arg1, 0);
72eb7ea8 7475 return ret;
704eff6c 7476#endif
92a34c10
TS		 7477#if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
7478 case TARGET_NR_faccessat:
2852aafd
RH		 7479 if (!(p = lock_user_string(arg2))) {
7480 return -TARGET_EFAULT;
7481 }
c0d472b1 7482 ret = get_errno(faccessat(arg1, p, arg3, 0));
579a97f7 7483 unlock_user(p, arg2, 0);
72eb7ea8 7484 return ret;
92a34c10 7485#endif
7a3148a9 7486#ifdef TARGET_NR_nice /* not on alpha */
31e31b8a 7487 case TARGET_NR_nice:
72eb7ea8 7488 return get_errno(nice(arg1));
ebc05488 7489#endif
31e31b8a 7490 case TARGET_NR_sync:
04369ff2 7491 sync();
72eb7ea8 7492 return 0;
5a03cd00
AM		 7493#if defined(TARGET_NR_syncfs) && defined(CONFIG_SYNCFS)
7494 case TARGET_NR_syncfs:
72eb7ea8 7495 return get_errno(syncfs(arg1));
5a03cd00 7496#endif
31e31b8a 7497 case TARGET_NR_kill:
72eb7ea8 7498 return get_errno(safe_kill(arg1, target_to_host_signal(arg2)));
704eff6c 7499#ifdef TARGET_NR_rename
31e31b8a 7500 case TARGET_NR_rename:
53a5960a
PB		 7501 {
7502 void *p2;
7503 p = lock_user_string(arg1);
7504 p2 = lock_user_string(arg2);
579a97f7
FB		 7505 if (!p || !p2)
7506 ret = -TARGET_EFAULT;
7507 else
7508 ret = get_errno(rename(p, p2));
53a5960a
PB		 7509 unlock_user(p2, arg2, 0);
7510 unlock_user(p, arg1, 0);
7511 }
72eb7ea8 7512 return ret;
704eff6c 7513#endif
c0d472b1 7514#if defined(TARGET_NR_renameat)
722183f6 7515 case TARGET_NR_renameat:
722183f6 7516 {
579a97f7 7517 void *p2;
722183f6
TS		 7518 p = lock_user_string(arg2);
7519 p2 = lock_user_string(arg4);
579a97f7 7520 if (!p || !p2)
0da46a6e 7521 ret = -TARGET_EFAULT;
722183f6 7522 else
c0d472b1 7523 ret = get_errno(renameat(arg1, p, arg3, p2));
579a97f7
FB		 7524 unlock_user(p2, arg4, 0);
7525 unlock_user(p, arg2, 0);
722183f6 7526 }
72eb7ea8 7527 return ret;
95d0307c
AS		 7528#endif
7529#if defined(TARGET_NR_renameat2)
7530 case TARGET_NR_renameat2:
7531 {
7532 void *p2;
7533 p = lock_user_string(arg2);
7534 p2 = lock_user_string(arg4);
7535 if (!p || !p2) {
7536 ret = -TARGET_EFAULT;
7537 } else {
7538 ret = get_errno(sys_renameat2(arg1, p, arg3, p2, arg5));
7539 }
7540 unlock_user(p2, arg4, 0);
7541 unlock_user(p, arg2, 0);
7542 }
72eb7ea8 7543 return ret;
722183f6 7544#endif
704eff6c 7545#ifdef TARGET_NR_mkdir
31e31b8a 7546 case TARGET_NR_mkdir:
579a97f7 7547 if (!(p = lock_user_string(arg1)))
2852aafd 7548 return -TARGET_EFAULT;
53a5960a
PB		 7549 ret = get_errno(mkdir(p, arg2));
7550 unlock_user(p, arg1, 0);
72eb7ea8 7551 return ret;
704eff6c 7552#endif
c0d472b1 7553#if defined(TARGET_NR_mkdirat)
4472ad0d 7554 case TARGET_NR_mkdirat:
579a97f7 7555 if (!(p = lock_user_string(arg2)))
2852aafd 7556 return -TARGET_EFAULT;
c0d472b1 7557 ret = get_errno(mkdirat(arg1, p, arg3));
579a97f7 7558 unlock_user(p, arg2, 0);
72eb7ea8 7559 return ret;
4472ad0d 7560#endif
704eff6c 7561#ifdef TARGET_NR_rmdir
31e31b8a 7562 case TARGET_NR_rmdir:
579a97f7 7563 if (!(p = lock_user_string(arg1)))
2852aafd 7564 return -TARGET_EFAULT;
53a5960a
PB		 7565 ret = get_errno(rmdir(p));
7566 unlock_user(p, arg1, 0);
72eb7ea8 7567 return ret;
704eff6c 7568#endif
31e31b8a
FB		 7569 case TARGET_NR_dup:
7570 ret = get_errno(dup(arg1));
e36800c9
LV		 7571 if (ret >= 0) {
7572 fd_trans_dup(arg1, ret);
7573 }
72eb7ea8 7574 return ret;
704eff6c 7575#ifdef TARGET_NR_pipe
31e31b8a 7576 case TARGET_NR_pipe:
72eb7ea8 7577 return do_pipe(cpu_env, arg1, 0, 0);
704eff6c 7578#endif
099d6b0f
RV		 7579#ifdef TARGET_NR_pipe2
7580 case TARGET_NR_pipe2:
72eb7ea8
RH		 7581 return do_pipe(cpu_env, arg1,
7582 target_to_host_bitmask(arg2, fcntl_flags_tbl), 1);
099d6b0f 7583#endif
31e31b8a 7584 case TARGET_NR_times:
32f36bce 7585 {
53a5960a 7586 struct target_tms *tmsp;
32f36bce
FB		 7587 struct tms tms;
7588 ret = get_errno(times(&tms));
53a5960a 7589 if (arg1) {
579a97f7
FB		 7590 tmsp = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_tms), 0);
7591 if (!tmsp)
2852aafd 7592 return -TARGET_EFAULT;
cbb21eed
MB		 7593 tmsp->tms_utime = tswapal(host_to_target_clock_t(tms.tms_utime));
7594 tmsp->tms_stime = tswapal(host_to_target_clock_t(tms.tms_stime));
7595 tmsp->tms_cutime = tswapal(host_to_target_clock_t(tms.tms_cutime));
7596 tmsp->tms_cstime = tswapal(host_to_target_clock_t(tms.tms_cstime));
32f36bce 7597 }
c596ed17
FB		 7598 if (!is_error(ret))
7599 ret = host_to_target_clock_t(ret);
32f36bce 7600 }
72eb7ea8 7601 return ret;
31e31b8a 7602 case TARGET_NR_acct:
38d840e6
AJ		 7603 if (arg1 == 0) {
7604 ret = get_errno(acct(NULL));
7605 } else {
2852aafd
RH		 7606 if (!(p = lock_user_string(arg1))) {
7607 return -TARGET_EFAULT;
7608 }
38d840e6
AJ		 7609 ret = get_errno(acct(path(p)));
7610 unlock_user(p, arg1, 0);
7611 }
72eb7ea8 7612 return ret;
8070e7be 7613#ifdef TARGET_NR_umount2
31e31b8a 7614 case TARGET_NR_umount2:
579a97f7 7615 if (!(p = lock_user_string(arg1)))
2852aafd 7616 return -TARGET_EFAULT;
53a5960a
PB		 7617 ret = get_errno(umount2(p, arg2));
7618 unlock_user(p, arg1, 0);
72eb7ea8 7619 return ret;
ebc05488 7620#endif
31e31b8a 7621 case TARGET_NR_ioctl:
72eb7ea8 7622 return do_ioctl(arg1, arg2, arg3);
47ae93cd 7623#ifdef TARGET_NR_fcntl
31e31b8a 7624 case TARGET_NR_fcntl:
72eb7ea8 7625 return do_fcntl(arg1, arg2, arg3);
ebc05488 7626#endif
31e31b8a 7627 case TARGET_NR_setpgid:
72eb7ea8 7628 return get_errno(setpgid(arg1, arg2));
31e31b8a 7629 case TARGET_NR_umask:
72eb7ea8 7630 return get_errno(umask(arg1));
31e31b8a 7631 case TARGET_NR_chroot:
579a97f7 7632 if (!(p = lock_user_string(arg1)))
2852aafd 7633 return -TARGET_EFAULT;
53a5960a
PB		 7634 ret = get_errno(chroot(p));
7635 unlock_user(p, arg1, 0);
72eb7ea8 7636 return ret;
704eff6c 7637#ifdef TARGET_NR_dup2
31e31b8a
FB		 7638 case TARGET_NR_dup2:
7639 ret = get_errno(dup2(arg1, arg2));
e36800c9
LV		 7640 if (ret >= 0) {
7641 fd_trans_dup(arg1, arg2);
7642 }
72eb7ea8 7643 return ret;
704eff6c 7644#endif
d0927938
UH		 7645#if defined(CONFIG_DUP3) && defined(TARGET_NR_dup3)
7646 case TARGET_NR_dup3:
10fa993a
PM		 7647 {
7648 int host_flags;
7649
7650 if ((arg3 & ~TARGET_O_CLOEXEC) != 0) {
7651 return -EINVAL;
7652 }
7653 host_flags = target_to_host_bitmask(arg3, fcntl_flags_tbl);
7654 ret = get_errno(dup3(arg1, arg2, host_flags));
e36800c9
LV		 7655 if (ret >= 0) {
7656 fd_trans_dup(arg1, arg2);
7657 }
72eb7ea8 7658 return ret;
10fa993a 7659 }
d0927938 7660#endif
7a3148a9 7661#ifdef TARGET_NR_getppid /* not on alpha */
31e31b8a 7662 case TARGET_NR_getppid:
72eb7ea8 7663 return get_errno(getppid());
7a3148a9 7664#endif
704eff6c 7665#ifdef TARGET_NR_getpgrp
31e31b8a 7666 case TARGET_NR_getpgrp:
72eb7ea8 7667 return get_errno(getpgrp());
704eff6c 7668#endif
31e31b8a 7669 case TARGET_NR_setsid:
72eb7ea8 7670 return get_errno(setsid());
e5febef5 7671#ifdef TARGET_NR_sigaction
31e31b8a 7672 case TARGET_NR_sigaction:
31e31b8a 7673 {
6049f4f8
RH		 7674#if defined(TARGET_ALPHA)
7675 struct target_sigaction act, oact, *pact = 0;
53a5960a 7676 struct target_old_sigaction *old_act;
53a5960a 7677 if (arg2) {
579a97f7 7678 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
2852aafd 7679 return -TARGET_EFAULT;
66fb9763
FB		 7680 act._sa_handler = old_act->_sa_handler;
7681 target_siginitset(&act.sa_mask, old_act->sa_mask);
7682 act.sa_flags = old_act->sa_flags;
6049f4f8 7683 act.sa_restorer = 0;
53a5960a 7684 unlock_user_struct(old_act, arg2, 0);
66fb9763 7685 pact = &act;
66fb9763
FB		 7686 }
7687 ret = get_errno(do_sigaction(arg1, pact, &oact));
53a5960a 7688 if (!is_error(ret) && arg3) {
579a97f7 7689 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
2852aafd 7690 return -TARGET_EFAULT;
53a5960a
PB		 7691 old_act->_sa_handler = oact._sa_handler;
7692 old_act->sa_mask = oact.sa_mask.sig[0];
7693 old_act->sa_flags = oact.sa_flags;
53a5960a 7694 unlock_user_struct(old_act, arg3, 1);
66fb9763 7695 }
6049f4f8 7696#elif defined(TARGET_MIPS)
106ec879
FB		 7697 struct target_sigaction act, oact, *pact, *old_act;
7698
7699 if (arg2) {
579a97f7 7700 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
2852aafd 7701 return -TARGET_EFAULT;
106ec879
FB		 7702 act._sa_handler = old_act->_sa_handler;
7703 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);
7704 act.sa_flags = old_act->sa_flags;
7705 unlock_user_struct(old_act, arg2, 0);
7706 pact = &act;
7707 } else {
7708 pact = NULL;
7709 }
7710
7711 ret = get_errno(do_sigaction(arg1, pact, &oact));
7712
7713 if (!is_error(ret) && arg3) {
579a97f7 7714 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
2852aafd 7715 return -TARGET_EFAULT;
106ec879
FB		 7716 old_act->_sa_handler = oact._sa_handler;
7717 old_act->sa_flags = oact.sa_flags;
7718 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0];
7719 old_act->sa_mask.sig[1] = 0;
7720 old_act->sa_mask.sig[2] = 0;
7721 old_act->sa_mask.sig[3] = 0;
7722 unlock_user_struct(old_act, arg3, 1);
7723 }
6049f4f8
RH		 7724#else
7725 struct target_old_sigaction *old_act;
7726 struct target_sigaction act, oact, *pact;
7727 if (arg2) {
7728 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
2852aafd 7729 return -TARGET_EFAULT;
6049f4f8
RH		 7730 act._sa_handler = old_act->_sa_handler;
7731 target_siginitset(&act.sa_mask, old_act->sa_mask);
7732 act.sa_flags = old_act->sa_flags;
7733 act.sa_restorer = old_act->sa_restorer;
5de154e8
LV		 7734#ifdef TARGET_ARCH_HAS_KA_RESTORER
7735 act.ka_restorer = 0;
7736#endif
6049f4f8
RH		 7737 unlock_user_struct(old_act, arg2, 0);
7738 pact = &act;
7739 } else {
7740 pact = NULL;
7741 }
7742 ret = get_errno(do_sigaction(arg1, pact, &oact));
7743 if (!is_error(ret) && arg3) {
7744 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
2852aafd 7745 return -TARGET_EFAULT;
6049f4f8
RH		 7746 old_act->_sa_handler = oact._sa_handler;
7747 old_act->sa_mask = oact.sa_mask.sig[0];
7748 old_act->sa_flags = oact.sa_flags;
7749 old_act->sa_restorer = oact.sa_restorer;
7750 unlock_user_struct(old_act, arg3, 1);
7751 }
388bb21a 7752#endif
31e31b8a 7753 }
72eb7ea8 7754 return ret;
e5febef5 7755#endif
66fb9763 7756 case TARGET_NR_rt_sigaction:
53a5960a 7757 {
6049f4f8 7758#if defined(TARGET_ALPHA)
78bfef72
PM		 7759 /* For Alpha and SPARC this is a 5 argument syscall, with
7760 * a 'restorer' parameter which must be copied into the
7761 * sa_restorer field of the sigaction struct.
7762 * For Alpha that 'restorer' is arg5; for SPARC it is arg4,
7763 * and arg5 is the sigsetsize.
7764 * Alpha also has a separate rt_sigaction struct that it uses
7765 * here; SPARC uses the usual sigaction struct.
7766 */
6049f4f8 7767 struct target_rt_sigaction *rt_act;
78bfef72 7768 struct target_sigaction act, oact, *pact = 0;
c815701e
PM		 7769
7770 if (arg4 != sizeof(target_sigset_t)) {
72eb7ea8 7771 return -TARGET_EINVAL;
c815701e 7772 }
6049f4f8
RH		 7773 if (arg2) {
7774 if (!lock_user_struct(VERIFY_READ, rt_act, arg2, 1))
2852aafd 7775 return -TARGET_EFAULT;
6049f4f8
RH		 7776 act._sa_handler = rt_act->_sa_handler;
7777 act.sa_mask = rt_act->sa_mask;
7778 act.sa_flags = rt_act->sa_flags;
7779 act.sa_restorer = arg5;
7780 unlock_user_struct(rt_act, arg2, 0);
7781 pact = &act;
7782 }
7783 ret = get_errno(do_sigaction(arg1, pact, &oact));
7784 if (!is_error(ret) && arg3) {
7785 if (!lock_user_struct(VERIFY_WRITE, rt_act, arg3, 0))
2852aafd 7786 return -TARGET_EFAULT;
6049f4f8
RH		 7787 rt_act->_sa_handler = oact._sa_handler;
7788 rt_act->sa_mask = oact.sa_mask;
7789 rt_act->sa_flags = oact.sa_flags;
7790 unlock_user_struct(rt_act, arg3, 1);
7791 }
7792#else
78bfef72
PM		 7793#ifdef TARGET_SPARC
7794 target_ulong restorer = arg4;
7795 target_ulong sigsetsize = arg5;
7796#else
7797 target_ulong sigsetsize = arg4;
7798#endif
53a5960a
PB		 7799 struct target_sigaction *act;
7800 struct target_sigaction *oact;
7801
78bfef72 7802 if (sigsetsize != sizeof(target_sigset_t)) {
72eb7ea8 7803 return -TARGET_EINVAL;
c815701e 7804 }
579a97f7 7805 if (arg2) {
78bfef72 7806 if (!lock_user_struct(VERIFY_READ, act, arg2, 1)) {
2852aafd 7807 return -TARGET_EFAULT;
78bfef72 7808 }
5de154e8
LV		 7809#ifdef TARGET_ARCH_HAS_KA_RESTORER
7810 act->ka_restorer = restorer;
78bfef72
PM		 7811#endif
7812 } else {
53a5960a 7813 act = NULL;
78bfef72 7814 }
579a97f7
FB		 7815 if (arg3) {
7816 if (!lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) {
7817 ret = -TARGET_EFAULT;
7818 goto rt_sigaction_fail;
7819 }
7820 } else
53a5960a
PB		 7821 oact = NULL;
7822 ret = get_errno(do_sigaction(arg1, act, oact));
579a97f7
FB		 7823 rt_sigaction_fail:
7824 if (act)
53a5960a 7825 unlock_user_struct(act, arg2, 0);
579a97f7 7826 if (oact)
53a5960a 7827 unlock_user_struct(oact, arg3, 1);
6049f4f8 7828#endif
53a5960a 7829 }
72eb7ea8 7830 return ret;
7a3148a9 7831#ifdef TARGET_NR_sgetmask /* not on alpha */
31e31b8a 7832 case TARGET_NR_sgetmask:
66fb9763
FB		 7833 {
7834 sigset_t cur_set;
992f48a0 7835 abi_ulong target_set;
3d3efba0
PM		 7836 ret = do_sigprocmask(0, NULL, &cur_set);
7837 if (!ret) {
7838 host_to_target_old_sigset(&target_set, &cur_set);
7839 ret = target_set;
7840 }
66fb9763 7841 }
72eb7ea8 7842 return ret;
7a3148a9
JM		 7843#endif
7844#ifdef TARGET_NR_ssetmask /* not on alpha */
31e31b8a 7845 case TARGET_NR_ssetmask:
66fb9763 7846 {
a8617d8c 7847 sigset_t set, oset;
992f48a0 7848 abi_ulong target_set = arg1;
66fb9763 7849 target_to_host_old_sigset(&set, &target_set);
3d3efba0
PM		 7850 ret = do_sigprocmask(SIG_SETMASK, &set, &oset);
7851 if (!ret) {
7852 host_to_target_old_sigset(&target_set, &oset);
7853 ret = target_set;
7854 }
66fb9763 7855 }
72eb7ea8 7856 return ret;
7a3148a9 7857#endif
e5febef5 7858#ifdef TARGET_NR_sigprocmask
66fb9763
FB		 7859 case TARGET_NR_sigprocmask:
7860 {
a5b3b13b
RH		 7861#if defined(TARGET_ALPHA)
7862 sigset_t set, oldset;
7863 abi_ulong mask;
7864 int how;
7865
7866 switch (arg1) {
7867 case TARGET_SIG_BLOCK:
7868 how = SIG_BLOCK;
7869 break;
7870 case TARGET_SIG_UNBLOCK:
7871 how = SIG_UNBLOCK;
7872 break;
7873 case TARGET_SIG_SETMASK:
7874 how = SIG_SETMASK;
7875 break;
7876 default:
259841c1 7877 return -TARGET_EINVAL;
a5b3b13b
RH		 7878 }
7879 mask = arg2;
7880 target_to_host_old_sigset(&set, &mask);
7881
3d3efba0 7882 ret = do_sigprocmask(how, &set, &oldset);
a5b3b13b
RH		 7883 if (!is_error(ret)) {
7884 host_to_target_old_sigset(&mask, &oldset);
7885 ret = mask;
0229f5a3 7886 ((CPUAlphaState *)cpu_env)->ir[IR_V0] = 0; /* force no error */
a5b3b13b
RH		 7887 }
7888#else
66fb9763 7889 sigset_t set, oldset, *set_ptr;
a5b3b13b 7890 int how;
3b46e624 7891
53a5960a 7892 if (arg2) {
a5b3b13b 7893 switch (arg1) {
66fb9763
FB		 7894 case TARGET_SIG_BLOCK:
7895 how = SIG_BLOCK;
7896 break;
7897 case TARGET_SIG_UNBLOCK:
7898 how = SIG_UNBLOCK;
7899 break;
7900 case TARGET_SIG_SETMASK:
7901 how = SIG_SETMASK;
7902 break;
7903 default:
259841c1 7904 return -TARGET_EINVAL;
66fb9763 7905 }
c227f099 7906 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
2852aafd 7907 return -TARGET_EFAULT;
53a5960a
PB		 7908 target_to_host_old_sigset(&set, p);
7909 unlock_user(p, arg2, 0);
66fb9763
FB		 7910 set_ptr = &set;
7911 } else {
7912 how = 0;
7913 set_ptr = NULL;
7914 }
3d3efba0 7915 ret = do_sigprocmask(how, set_ptr, &oldset);
53a5960a 7916 if (!is_error(ret) && arg3) {
c227f099 7917 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
2852aafd 7918 return -TARGET_EFAULT;
53a5960a 7919 host_to_target_old_sigset(p, &oldset);
c227f099 7920 unlock_user(p, arg3, sizeof(target_sigset_t));
66fb9763 7921 }
a5b3b13b 7922#endif
66fb9763 7923 }
72eb7ea8 7924 return ret;
e5febef5 7925#endif
66fb9763
FB		 7926 case TARGET_NR_rt_sigprocmask:
7927 {
7928 int how = arg1;
7929 sigset_t set, oldset, *set_ptr;
3b46e624 7930
c815701e 7931 if (arg4 != sizeof(target_sigset_t)) {
72eb7ea8 7932 return -TARGET_EINVAL;
c815701e
PM		 7933 }
7934
53a5960a 7935 if (arg2) {
66fb9763
FB		 7936 switch(how) {
7937 case TARGET_SIG_BLOCK:
7938 how = SIG_BLOCK;
7939 break;
7940 case TARGET_SIG_UNBLOCK:
7941 how = SIG_UNBLOCK;
7942 break;
7943 case TARGET_SIG_SETMASK:
7944 how = SIG_SETMASK;
7945 break;
7946 default:
259841c1 7947 return -TARGET_EINVAL;
66fb9763 7948 }
c227f099 7949 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
2852aafd 7950 return -TARGET_EFAULT;
53a5960a
PB		 7951 target_to_host_sigset(&set, p);
7952 unlock_user(p, arg2, 0);
66fb9763
FB		 7953 set_ptr = &set;
7954 } else {
7955 how = 0;
7956 set_ptr = NULL;
7957 }
3d3efba0 7958 ret = do_sigprocmask(how, set_ptr, &oldset);
53a5960a 7959 if (!is_error(ret) && arg3) {
c227f099 7960 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
2852aafd 7961 return -TARGET_EFAULT;
53a5960a 7962 host_to_target_sigset(p, &oldset);
c227f099 7963 unlock_user(p, arg3, sizeof(target_sigset_t));
66fb9763
FB		 7964 }
7965 }
72eb7ea8 7966 return ret;
e5febef5 7967#ifdef TARGET_NR_sigpending
66fb9763
FB		 7968 case TARGET_NR_sigpending:
7969 {
7970 sigset_t set;
7971 ret = get_errno(sigpending(&set));
7972 if (!is_error(ret)) {
c227f099 7973 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
2852aafd 7974 return -TARGET_EFAULT;
53a5960a 7975 host_to_target_old_sigset(p, &set);
c227f099 7976 unlock_user(p, arg1, sizeof(target_sigset_t));
66fb9763
FB		 7977 }
7978 }
72eb7ea8 7979 return ret;
e5febef5 7980#endif
66fb9763
FB		 7981 case TARGET_NR_rt_sigpending:
7982 {
7983 sigset_t set;
c815701e
PM		 7984
7985 /* Yes, this check is >, not != like most. We follow the kernel's
7986 * logic and it does it like this because it implements
7987 * NR_sigpending through the same code path, and in that case
7988 * the old_sigset_t is smaller in size.
7989 */
7990 if (arg2 > sizeof(target_sigset_t)) {
72eb7ea8 7991 return -TARGET_EINVAL;
c815701e
PM		 7992 }
7993
66fb9763
FB		 7994 ret = get_errno(sigpending(&set));
7995 if (!is_error(ret)) {
c227f099 7996 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
2852aafd 7997 return -TARGET_EFAULT;
53a5960a 7998 host_to_target_sigset(p, &set);
c227f099 7999 unlock_user(p, arg1, sizeof(target_sigset_t));
66fb9763
FB		 8000 }
8001 }
72eb7ea8 8002 return ret;
e5febef5 8003#ifdef TARGET_NR_sigsuspend
66fb9763
FB		 8004 case TARGET_NR_sigsuspend:
8005 {
3d3efba0 8006 TaskState *ts = cpu->opaque;
f43ce12b
RH		 8007#if defined(TARGET_ALPHA)
8008 abi_ulong mask = arg1;
3d3efba0 8009 target_to_host_old_sigset(&ts->sigsuspend_mask, &mask);
f43ce12b 8010#else
c227f099 8011 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
2852aafd 8012 return -TARGET_EFAULT;
3d3efba0 8013 target_to_host_old_sigset(&ts->sigsuspend_mask, p);
53a5960a 8014 unlock_user(p, arg1, 0);
f43ce12b 8015#endif
3d3efba0
PM		 8016 ret = get_errno(safe_rt_sigsuspend(&ts->sigsuspend_mask,
8017 SIGSET_T_SIZE));
8018 if (ret != -TARGET_ERESTARTSYS) {
8019 ts->in_sigsuspend = 1;
8020 }
66fb9763 8021 }
72eb7ea8 8022 return ret;
e5febef5 8023#endif
66fb9763
FB		 8024 case TARGET_NR_rt_sigsuspend:
8025 {
3d3efba0 8026 TaskState *ts = cpu->opaque;
c815701e
PM		 8027
8028 if (arg2 != sizeof(target_sigset_t)) {
72eb7ea8 8029 return -TARGET_EINVAL;
c815701e 8030 }
c227f099 8031 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
2852aafd 8032 return -TARGET_EFAULT;
3d3efba0 8033 target_to_host_sigset(&ts->sigsuspend_mask, p);
53a5960a 8034 unlock_user(p, arg1, 0);
3d3efba0
PM		 8035 ret = get_errno(safe_rt_sigsuspend(&ts->sigsuspend_mask,
8036 SIGSET_T_SIZE));
8037 if (ret != -TARGET_ERESTARTSYS) {
8038 ts->in_sigsuspend = 1;
8039 }
66fb9763 8040 }
72eb7ea8 8041 return ret;
66fb9763
FB		 8042 case TARGET_NR_rt_sigtimedwait:
8043 {
66fb9763
FB		 8044 sigset_t set;
8045 struct timespec uts, *puts;
8046 siginfo_t uinfo;
3b46e624 8047
c815701e 8048 if (arg4 != sizeof(target_sigset_t)) {
72eb7ea8 8049 return -TARGET_EINVAL;
c815701e
PM		 8050 }
8051
c227f099 8052 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
2852aafd 8053 return -TARGET_EFAULT;
53a5960a
PB		 8054 target_to_host_sigset(&set, p);
8055 unlock_user(p, arg1, 0);
8056 if (arg3) {
66fb9763 8057 puts = &uts;
53a5960a 8058 target_to_host_timespec(puts, arg3);
66fb9763
FB		 8059 } else {
8060 puts = NULL;
8061 }
b3f82330
PM		 8062 ret = get_errno(safe_rt_sigtimedwait(&set, &uinfo, puts,
8063 SIGSET_T_SIZE));
974a196d
PJ		 8064 if (!is_error(ret)) {
8065 if (arg2) {
8066 p = lock_user(VERIFY_WRITE, arg2, sizeof(target_siginfo_t),
8067 0);
8068 if (!p) {
2852aafd 8069 return -TARGET_EFAULT;
974a196d
PJ		 8070 }
8071 host_to_target_siginfo(p, &uinfo);
8072 unlock_user(p, arg2, sizeof(target_siginfo_t));
8073 }
8074 ret = host_to_target_signal(ret);
66fb9763
FB		 8075 }
8076 }
72eb7ea8 8077 return ret;
66fb9763
FB		 8078 case TARGET_NR_rt_sigqueueinfo:
8079 {
8080 siginfo_t uinfo;
4debae6f
PM		 8081
8082 p = lock_user(VERIFY_READ, arg3, sizeof(target_siginfo_t), 1);
8083 if (!p) {
2852aafd 8084 return -TARGET_EFAULT;
4debae6f 8085 }
53a5960a 8086 target_to_host_siginfo(&uinfo, p);
d8b6d892 8087 unlock_user(p, arg3, 0);
66fb9763
FB		 8088 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
8089 }
72eb7ea8 8090 return ret;
cf8b8bfc
MS		 8091 case TARGET_NR_rt_tgsigqueueinfo:
8092 {
8093 siginfo_t uinfo;
8094
8095 p = lock_user(VERIFY_READ, arg4, sizeof(target_siginfo_t), 1);
8096 if (!p) {
2852aafd 8097 return -TARGET_EFAULT;
cf8b8bfc
MS		 8098 }
8099 target_to_host_siginfo(&uinfo, p);
8100 unlock_user(p, arg4, 0);
8101 ret = get_errno(sys_rt_tgsigqueueinfo(arg1, arg2, arg3, &uinfo));
8102 }
72eb7ea8 8103 return ret;
e5febef5 8104#ifdef TARGET_NR_sigreturn
66fb9763 8105 case TARGET_NR_sigreturn:
3d3efba0 8106 if (block_signals()) {
72eb7ea8 8107 return -TARGET_ERESTARTSYS;
3d3efba0 8108 }
72eb7ea8 8109 return do_sigreturn(cpu_env);
e5febef5 8110#endif
66fb9763 8111 case TARGET_NR_rt_sigreturn:
3d3efba0 8112 if (block_signals()) {
72eb7ea8 8113 return -TARGET_ERESTARTSYS;
3d3efba0 8114 }
72eb7ea8 8115 return do_rt_sigreturn(cpu_env);
31e31b8a 8116 case TARGET_NR_sethostname:
579a97f7 8117 if (!(p = lock_user_string(arg1)))
2852aafd 8118 return -TARGET_EFAULT;
53a5960a
PB		 8119 ret = get_errno(sethostname(p, arg2));
8120 unlock_user(p, arg1, 0);
72eb7ea8 8121 return ret;
4f7f8924 8122#ifdef TARGET_NR_setrlimit
31e31b8a 8123 case TARGET_NR_setrlimit:
9de5e440 8124 {
e22b7015 8125 int resource = target_to_host_resource(arg1);
53a5960a 8126 struct target_rlimit *target_rlim;
9de5e440 8127 struct rlimit rlim;
579a97f7 8128 if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1))
2852aafd 8129 return -TARGET_EFAULT;
81bbe906
TY		 8130 rlim.rlim_cur = target_to_host_rlim(target_rlim->rlim_cur);
8131 rlim.rlim_max = target_to_host_rlim(target_rlim->rlim_max);
53a5960a 8132 unlock_user_struct(target_rlim, arg2, 0);
5dfa88f7
MF		 8133 /*
8134 * If we just passed through resource limit settings for memory then
8135 * they would also apply to QEMU's own allocations, and QEMU will
8136 * crash or hang or die if its allocations fail. Ideally we would
8137 * track the guest allocations in QEMU and apply the limits ourselves.
8138 * For now, just tell the guest the call succeeded but don't actually
8139 * limit anything.
8140 */
8141 if (resource != RLIMIT_AS &&
8142 resource != RLIMIT_DATA &&
8143 resource != RLIMIT_STACK) {
8144 return get_errno(setrlimit(resource, &rlim));
8145 } else {
8146 return 0;
8147 }
9de5e440 8148 }
4f7f8924
AR		 8149#endif
8150#ifdef TARGET_NR_getrlimit
31e31b8a 8151 case TARGET_NR_getrlimit:
9de5e440 8152 {
e22b7015 8153 int resource = target_to_host_resource(arg1);
53a5960a 8154 struct target_rlimit *target_rlim;
9de5e440 8155 struct rlimit rlim;
3b46e624 8156
9de5e440
FB		 8157 ret = get_errno(getrlimit(resource, &rlim));
8158 if (!is_error(ret)) {
579a97f7 8159 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
2852aafd 8160 return -TARGET_EFAULT;
81bbe906
TY		 8161 target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
8162 target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
53a5960a 8163 unlock_user_struct(target_rlim, arg2, 1);
9de5e440
FB		 8164 }
8165 }
72eb7ea8 8166 return ret;
4f7f8924 8167#endif
31e31b8a 8168 case TARGET_NR_getrusage:
b409186b
FB		 8169 {
8170 struct rusage rusage;
b409186b
FB		 8171 ret = get_errno(getrusage(arg1, &rusage));
8172 if (!is_error(ret)) {
a39fb273 8173 ret = host_to_target_rusage(arg2, &rusage);
b409186b
FB		 8174 }
8175 }
72eb7ea8 8176 return ret;
31e31b8a
FB		 8177 case TARGET_NR_gettimeofday:
8178 {
31e31b8a
FB		 8179 struct timeval tv;
8180 ret = get_errno(gettimeofday(&tv, NULL));
8181 if (!is_error(ret)) {
788f5ec4 8182 if (copy_to_user_timeval(arg1, &tv))
2852aafd 8183 return -TARGET_EFAULT;
31e31b8a
FB		 8184 }
8185 }
72eb7ea8 8186 return ret;
31e31b8a
FB		 8187 case TARGET_NR_settimeofday:
8188 {
b67d8031 8189 struct timeval tv, *ptv = NULL;
ef4467e9
PB		 8190 struct timezone tz, *ptz = NULL;
8191
b67d8031
PB		 8192 if (arg1) {
8193 if (copy_from_user_timeval(&tv, arg1)) {
2852aafd 8194 return -TARGET_EFAULT;
b67d8031
PB		 8195 }
8196 ptv = &tv;
8197 }
ef4467e9
PB		 8198
8199 if (arg2) {
8200 if (copy_from_user_timezone(&tz, arg2)) {
2852aafd 8201 return -TARGET_EFAULT;
ef4467e9
PB		 8202 }
8203 ptz = &tz;
8204 }
8205
72eb7ea8 8206 return get_errno(settimeofday(ptv, ptz));
31e31b8a 8207 }
9468a5d4 8208#if defined(TARGET_NR_select)
31e31b8a 8209 case TARGET_NR_select:
5457dc9e
LV		 8210#if defined(TARGET_WANT_NI_OLD_SELECT)
8211 /* some architectures used to have old_select here
8212 * but now ENOSYS it.
8213 */
8214 ret = -TARGET_ENOSYS;
8215#elif defined(TARGET_WANT_OLD_SYS_SELECT)
8216 ret = do_old_select(arg1);
9468a5d4 8217#else
5457dc9e 8218 ret = do_select(arg1, arg2, arg3, arg4, arg5);
9468a5d4 8219#endif
72eb7ea8 8220 return ret;
9e42382f
RV		 8221#endif
8222#ifdef TARGET_NR_pselect6
8223 case TARGET_NR_pselect6:
055e0906
MF		 8224 {
8225 abi_long rfd_addr, wfd_addr, efd_addr, n, ts_addr;
8226 fd_set rfds, wfds, efds;
8227 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
8228 struct timespec ts, *ts_ptr;
8229
8230 /*
8231 * The 6th arg is actually two args smashed together,
8232 * so we cannot use the C library.
8233 */
8234 sigset_t set;
8235 struct {
8236 sigset_t *set;
8237 size_t size;
8238 } sig, *sig_ptr;
8239
8240 abi_ulong arg_sigset, arg_sigsize, *arg7;
8241 target_sigset_t *target_sigset;
8242
8243 n = arg1;
8244 rfd_addr = arg2;
8245 wfd_addr = arg3;
8246 efd_addr = arg4;
8247 ts_addr = arg5;
8248
8249 ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n);
8250 if (ret) {
259841c1 8251 return ret;
055e0906
MF		 8252 }
8253 ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n);
8254 if (ret) {
259841c1 8255 return ret;
055e0906
MF		 8256 }
8257 ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n);
8258 if (ret) {
259841c1 8259 return ret;
055e0906
MF		 8260 }
8261
8262 /*
8263 * This takes a timespec, and not a timeval, so we cannot
8264 * use the do_select() helper ...
8265 */
8266 if (ts_addr) {
8267 if (target_to_host_timespec(&ts, ts_addr)) {
2852aafd 8268 return -TARGET_EFAULT;
055e0906
MF		 8269 }
8270 ts_ptr = &ts;
8271 } else {
8272 ts_ptr = NULL;
8273 }
8274
8275 /* Extract the two packed args for the sigset */
8276 if (arg6) {
8277 sig_ptr = &sig;
b28a1f33 8278 sig.size = SIGSET_T_SIZE;
055e0906
MF		 8279
8280 arg7 = lock_user(VERIFY_READ, arg6, sizeof(*arg7) * 2, 1);
8281 if (!arg7) {
2852aafd 8282 return -TARGET_EFAULT;
055e0906 8283 }
cbb21eed
MB		 8284 arg_sigset = tswapal(arg7[0]);
8285 arg_sigsize = tswapal(arg7[1]);
055e0906
MF		 8286 unlock_user(arg7, arg6, 0);
8287
8288 if (arg_sigset) {
8289 sig.set = &set;
8f04eeb3
PM		 8290 if (arg_sigsize != sizeof(*target_sigset)) {
8291 /* Like the kernel, we enforce correct size sigsets */
259841c1 8292 return -TARGET_EINVAL;
8f04eeb3 8293 }
055e0906
MF		 8294 target_sigset = lock_user(VERIFY_READ, arg_sigset,
8295 sizeof(*target_sigset), 1);
8296 if (!target_sigset) {
2852aafd 8297 return -TARGET_EFAULT;
055e0906
MF		 8298 }
8299 target_to_host_sigset(&set, target_sigset);
8300 unlock_user(target_sigset, arg_sigset, 0);
8301 } else {
8302 sig.set = NULL;
8303 }
8304 } else {
8305 sig_ptr = NULL;
8306 }
8307
6df9d38d
PM		 8308 ret = get_errno(safe_pselect6(n, rfds_ptr, wfds_ptr, efds_ptr,
8309 ts_ptr, sig_ptr));
055e0906
MF		 8310
8311 if (!is_error(ret)) {
8312 if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
2852aafd 8313 return -TARGET_EFAULT;
055e0906 8314 if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n))
2852aafd 8315 return -TARGET_EFAULT;
055e0906 8316 if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))
2852aafd 8317 return -TARGET_EFAULT;
055e0906
MF		 8318
8319 if (ts_addr && host_to_target_timespec(ts_addr, &ts))
2852aafd 8320 return -TARGET_EFAULT;
055e0906
MF		 8321 }
8322 }
72eb7ea8 8323 return ret;
048f6b4d 8324#endif
704eff6c 8325#ifdef TARGET_NR_symlink
31e31b8a 8326 case TARGET_NR_symlink:
53a5960a
PB		 8327 {
8328 void *p2;
8329 p = lock_user_string(arg1);
8330 p2 = lock_user_string(arg2);
579a97f7
FB		 8331 if (!p || !p2)
8332 ret = -TARGET_EFAULT;
8333 else
8334 ret = get_errno(symlink(p, p2));
53a5960a
PB		 8335 unlock_user(p2, arg2, 0);
8336 unlock_user(p, arg1, 0);
8337 }
72eb7ea8 8338 return ret;
704eff6c 8339#endif
c0d472b1 8340#if defined(TARGET_NR_symlinkat)
f0b6243d 8341 case TARGET_NR_symlinkat:
f0b6243d 8342 {
579a97f7 8343 void *p2;
f0b6243d
TS		 8344 p = lock_user_string(arg1);
8345 p2 = lock_user_string(arg3);
579a97f7 8346 if (!p || !p2)
0da46a6e 8347 ret = -TARGET_EFAULT;
f0b6243d 8348 else
c0d472b1 8349 ret = get_errno(symlinkat(p, arg2, p2));
579a97f7
FB		 8350 unlock_user(p2, arg3, 0);
8351 unlock_user(p, arg1, 0);
f0b6243d 8352 }
72eb7ea8 8353 return ret;
f0b6243d 8354#endif
704eff6c 8355#ifdef TARGET_NR_readlink
31e31b8a 8356 case TARGET_NR_readlink:
53a5960a 8357 {
463d8e73 8358 void *p2;
53a5960a 8359 p = lock_user_string(arg1);
579a97f7 8360 p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0);
463d8e73 8361 if (!p || !p2) {
579a97f7 8362 ret = -TARGET_EFAULT;
f17f4989
MF		 8363 } else if (!arg3) {
8364 /* Short circuit this for the magic exe check. */
8365 ret = -TARGET_EINVAL;
463d8e73
AS		 8366 } else if (is_proc_myself((const char *)p, "exe")) {
8367 char real[PATH_MAX], *temp;
8368 temp = realpath(exec_path, real);
f17f4989
MF		 8369 /* Return value is # of bytes that we wrote to the buffer. */
8370 if (temp == NULL) {
8371 ret = get_errno(-1);
8372 } else {
8373 /* Don't worry about sign mismatch as earlier mapping
8374 * logic would have thrown a bad address error. */
8375 ret = MIN(strlen(real), arg3);
8376 /* We cannot NUL terminate the string. */
8377 memcpy(p2, real, ret);
8378 }
463d8e73
AS		 8379 } else {
8380 ret = get_errno(readlink(path(p), p2, arg3));
d088d664 8381 }
53a5960a
PB		 8382 unlock_user(p2, arg2, ret);
8383 unlock_user(p, arg1, 0);
8384 }
72eb7ea8 8385 return ret;
704eff6c 8386#endif
c0d472b1 8387#if defined(TARGET_NR_readlinkat)
5e0ccb18 8388 case TARGET_NR_readlinkat:
5e0ccb18 8389 {
579a97f7 8390 void *p2;
5e0ccb18 8391 p = lock_user_string(arg2);
579a97f7 8392 p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0);
463d8e73
AS		 8393 if (!p || !p2) {
8394 ret = -TARGET_EFAULT;
8395 } else if (is_proc_myself((const char *)p, "exe")) {
8396 char real[PATH_MAX], *temp;
8397 temp = realpath(exec_path, real);
8398 ret = temp == NULL ? get_errno(-1) : strlen(real) ;
8399 snprintf((char *)p2, arg4, "%s", real);
8400 } else {
c0d472b1 8401 ret = get_errno(readlinkat(arg1, path(p), p2, arg4));
463d8e73 8402 }
579a97f7
FB		 8403 unlock_user(p2, arg3, ret);
8404 unlock_user(p, arg2, 0);
5e0ccb18 8405 }
72eb7ea8 8406 return ret;
5e0ccb18 8407#endif
e5febef5 8408#ifdef TARGET_NR_swapon
31e31b8a 8409 case TARGET_NR_swapon:
579a97f7 8410 if (!(p = lock_user_string(arg1)))
2852aafd 8411 return -TARGET_EFAULT;
53a5960a
PB		 8412 ret = get_errno(swapon(p, arg2));
8413 unlock_user(p, arg1, 0);
72eb7ea8 8414 return ret;
e5febef5 8415#endif
31e31b8a 8416 case TARGET_NR_reboot:
c07ecc68
LV		 8417 if (arg3 == LINUX_REBOOT_CMD_RESTART2) {
8418 /* arg4 must be ignored in all other cases */
8419 p = lock_user_string(arg4);
8420 if (!p) {
2852aafd 8421 return -TARGET_EFAULT;
c07ecc68
LV		 8422 }
8423 ret = get_errno(reboot(arg1, arg2, arg3, p));
8424 unlock_user(p, arg4, 0);
8425 } else {
8426 ret = get_errno(reboot(arg1, arg2, arg3, NULL));
8427 }
72eb7ea8 8428 return ret;
e5febef5 8429#ifdef TARGET_NR_mmap
31e31b8a 8430 case TARGET_NR_mmap:
09701199
AG		 8431#if (defined(TARGET_I386) && defined(TARGET_ABI32)) || \
8432 (defined(TARGET_ARM) && defined(TARGET_ABI32)) || \
a4c075f1
UH		 8433 defined(TARGET_M68K) || defined(TARGET_CRIS) || defined(TARGET_MICROBLAZE) \
8434 || defined(TARGET_S390X)
31e31b8a 8435 {
992f48a0
BS		 8436 abi_ulong *v;
8437 abi_ulong v1, v2, v3, v4, v5, v6;
579a97f7 8438 if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1)))
2852aafd 8439 return -TARGET_EFAULT;
cbb21eed
MB		 8440 v1 = tswapal(v[0]);
8441 v2 = tswapal(v[1]);
8442 v3 = tswapal(v[2]);
8443 v4 = tswapal(v[3]);
8444 v5 = tswapal(v[4]);
8445 v6 = tswapal(v[5]);
53a5960a 8446 unlock_user(v, arg1, 0);
5fafdf24 8447 ret = get_errno(target_mmap(v1, v2, v3,
5286db75
FB		 8448 target_to_host_bitmask(v4, mmap_flags_tbl),
8449 v5, v6));
31e31b8a 8450 }
31e31b8a 8451#else
5fafdf24
TS		 8452 ret = get_errno(target_mmap(arg1, arg2, arg3,
8453 target_to_host_bitmask(arg4, mmap_flags_tbl),
6fb883e8
FB		 8454 arg5,
8455 arg6));
31e31b8a 8456#endif
72eb7ea8 8457 return ret;
e5febef5 8458#endif
a315a145 8459#ifdef TARGET_NR_mmap2
6fb883e8 8460 case TARGET_NR_mmap2:
bb7ec043 8461#ifndef MMAP_SHIFT
c573ff67 8462#define MMAP_SHIFT 12
c573ff67 8463#endif
72eb7ea8
RH		 8464 ret = target_mmap(arg1, arg2, arg3,
8465 target_to_host_bitmask(arg4, mmap_flags_tbl),
8466 arg5, arg6 << MMAP_SHIFT);
8467 return get_errno(ret);
a315a145 8468#endif
31e31b8a 8469 case TARGET_NR_munmap:
72eb7ea8 8470 return get_errno(target_munmap(arg1, arg2));
9de5e440 8471 case TARGET_NR_mprotect:
97374d38 8472 {
0429a971 8473 TaskState *ts = cpu->opaque;
97374d38
PB		 8474 /* Special hack to detect libc making the stack executable. */
8475 if ((arg3 & PROT_GROWSDOWN)
8476 && arg1 >= ts->info->stack_limit
8477 && arg1 <= ts->info->start_stack) {
8478 arg3 &= ~PROT_GROWSDOWN;
8479 arg2 = arg2 + arg1 - ts->info->stack_limit;
8480 arg1 = ts->info->stack_limit;
8481 }
8482 }
72eb7ea8 8483 return get_errno(target_mprotect(arg1, arg2, arg3));
e5febef5 8484#ifdef TARGET_NR_mremap
9de5e440 8485 case TARGET_NR_mremap:
72eb7ea8 8486 return get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
e5febef5 8487#endif
53a5960a 8488 /* ??? msync/mlock/munlock are broken for softmmu. */
e5febef5 8489#ifdef TARGET_NR_msync
9de5e440 8490 case TARGET_NR_msync:
72eb7ea8 8491 return get_errno(msync(g2h(arg1), arg2, arg3));
e5febef5
TS		 8492#endif
8493#ifdef TARGET_NR_mlock
9de5e440 8494 case TARGET_NR_mlock:
72eb7ea8 8495 return get_errno(mlock(g2h(arg1), arg2));
e5febef5
TS		 8496#endif
8497#ifdef TARGET_NR_munlock
9de5e440 8498 case TARGET_NR_munlock:
72eb7ea8 8499 return get_errno(munlock(g2h(arg1), arg2));
e5febef5
TS		 8500#endif
8501#ifdef TARGET_NR_mlockall
9de5e440 8502 case TARGET_NR_mlockall:
72eb7ea8 8503 return get_errno(mlockall(target_to_host_mlockall_arg(arg1)));
e5febef5
TS		 8504#endif
8505#ifdef TARGET_NR_munlockall
9de5e440 8506 case TARGET_NR_munlockall:
72eb7ea8 8507 return get_errno(munlockall());
e5febef5 8508#endif
4f7f8924 8509#ifdef TARGET_NR_truncate
31e31b8a 8510 case TARGET_NR_truncate:
579a97f7 8511 if (!(p = lock_user_string(arg1)))
2852aafd 8512 return -TARGET_EFAULT;
53a5960a
PB		 8513 ret = get_errno(truncate(p, arg2));
8514 unlock_user(p, arg1, 0);
72eb7ea8 8515 return ret;
4f7f8924
AR		 8516#endif
8517#ifdef TARGET_NR_ftruncate
31e31b8a 8518 case TARGET_NR_ftruncate:
72eb7ea8 8519 return get_errno(ftruncate(arg1, arg2));
4f7f8924 8520#endif
31e31b8a 8521 case TARGET_NR_fchmod:
72eb7ea8 8522 return get_errno(fchmod(arg1, arg2));
c0d472b1 8523#if defined(TARGET_NR_fchmodat)
814d7977 8524 case TARGET_NR_fchmodat:
579a97f7 8525 if (!(p = lock_user_string(arg2)))
2852aafd 8526 return -TARGET_EFAULT;
c0d472b1 8527 ret = get_errno(fchmodat(arg1, p, arg3, 0));
579a97f7 8528 unlock_user(p, arg2, 0);
72eb7ea8 8529 return ret;
814d7977 8530#endif
31e31b8a 8531 case TARGET_NR_getpriority:
95c09828
RH		 8532 /* Note that negative values are valid for getpriority, so we must
8533 differentiate based on errno settings. */
8534 errno = 0;
8535 ret = getpriority(arg1, arg2);
8536 if (ret == -1 && errno != 0) {
72eb7ea8 8537 return -host_to_target_errno(errno);
95c09828
RH		 8538 }
8539#ifdef TARGET_ALPHA
8540 /* Return value is the unbiased priority. Signal no error. */
8541 ((CPUAlphaState *)cpu_env)->ir[IR_V0] = 0;
8542#else
8543 /* Return value is a biased priority to avoid negative numbers. */
8544 ret = 20 - ret;
8545#endif
72eb7ea8 8546 return ret;
31e31b8a 8547 case TARGET_NR_setpriority:
72eb7ea8 8548 return get_errno(setpriority(arg1, arg2, arg3));
4f7f8924 8549#ifdef TARGET_NR_statfs
31e31b8a 8550 case TARGET_NR_statfs:
2852aafd
RH		 8551 if (!(p = lock_user_string(arg1))) {
8552 return -TARGET_EFAULT;
8553 }
53a5960a
PB		 8554 ret = get_errno(statfs(path(p), &stfs));
8555 unlock_user(p, arg1, 0);
31e31b8a
FB		 8556 convert_statfs:
8557 if (!is_error(ret)) {
53a5960a 8558 struct target_statfs *target_stfs;
3b46e624 8559
579a97f7 8560 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg2, 0))
2852aafd 8561 return -TARGET_EFAULT;
579a97f7
FB		 8562 __put_user(stfs.f_type, &target_stfs->f_type);
8563 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
8564 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
8565 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
8566 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
8567 __put_user(stfs.f_files, &target_stfs->f_files);
8568 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
8569 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
8570 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
8571 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
229d3376 8572 __put_user(stfs.f_frsize, &target_stfs->f_frsize);
d4247ec2
SL		 8573#ifdef _STATFS_F_FLAGS
8574 __put_user(stfs.f_flags, &target_stfs->f_flags);
8575#else
8576 __put_user(0, &target_stfs->f_flags);
8577#endif
229d3376 8578 memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare));
53a5960a 8579 unlock_user_struct(target_stfs, arg2, 1);
31e31b8a 8580 }
72eb7ea8 8581 return ret;
4f7f8924
AR		 8582#endif
8583#ifdef TARGET_NR_fstatfs
31e31b8a 8584 case TARGET_NR_fstatfs:
56c8f68f 8585 ret = get_errno(fstatfs(arg1, &stfs));
31e31b8a 8586 goto convert_statfs;
4f7f8924 8587#endif
56c8f68f
FB		 8588#ifdef TARGET_NR_statfs64
8589 case TARGET_NR_statfs64:
2852aafd
RH		 8590 if (!(p = lock_user_string(arg1))) {
8591 return -TARGET_EFAULT;
8592 }
53a5960a
PB		 8593 ret = get_errno(statfs(path(p), &stfs));
8594 unlock_user(p, arg1, 0);
56c8f68f
FB		 8595 convert_statfs64:
8596 if (!is_error(ret)) {
53a5960a 8597 struct target_statfs64 *target_stfs;
3b46e624 8598
579a97f7 8599 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg3, 0))
2852aafd 8600 return -TARGET_EFAULT;
579a97f7
FB		 8601 __put_user(stfs.f_type, &target_stfs->f_type);
8602 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
8603 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
8604 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
8605 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
8606 __put_user(stfs.f_files, &target_stfs->f_files);
8607 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
8608 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
8609 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
8610 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
229d3376
AG		 8611 __put_user(stfs.f_frsize, &target_stfs->f_frsize);
8612 memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare));
579a97f7 8613 unlock_user_struct(target_stfs, arg3, 1);
56c8f68f 8614 }
72eb7ea8 8615 return ret;
56c8f68f
FB		 8616 case TARGET_NR_fstatfs64:
8617 ret = get_errno(fstatfs(arg1, &stfs));
8618 goto convert_statfs64;
8619#endif
e5febef5 8620#ifdef TARGET_NR_socketcall
31e31b8a 8621 case TARGET_NR_socketcall:
72eb7ea8 8622 return do_socketcall(arg1, arg2);
e5febef5 8623#endif
3532fa74
FB		 8624#ifdef TARGET_NR_accept
8625 case TARGET_NR_accept:
72eb7ea8 8626 return do_accept4(arg1, arg2, arg3, 0);
a94b4987
PM		 8627#endif
8628#ifdef TARGET_NR_accept4
8629 case TARGET_NR_accept4:
72eb7ea8 8630 return do_accept4(arg1, arg2, arg3, arg4);
3532fa74
FB		 8631#endif
8632#ifdef TARGET_NR_bind
8633 case TARGET_NR_bind:
72eb7ea8 8634 return do_bind(arg1, arg2, arg3);
3532fa74
FB		 8635#endif
8636#ifdef TARGET_NR_connect
8637 case TARGET_NR_connect:
72eb7ea8 8638 return do_connect(arg1, arg2, arg3);
3532fa74
FB		 8639#endif
8640#ifdef TARGET_NR_getpeername
8641 case TARGET_NR_getpeername:
72eb7ea8 8642 return do_getpeername(arg1, arg2, arg3);
3532fa74
FB		 8643#endif
8644#ifdef TARGET_NR_getsockname
8645 case TARGET_NR_getsockname:
72eb7ea8 8646 return do_getsockname(arg1, arg2, arg3);
3532fa74
FB		 8647#endif
8648#ifdef TARGET_NR_getsockopt
8649 case TARGET_NR_getsockopt:
72eb7ea8 8650 return do_getsockopt(arg1, arg2, arg3, arg4, arg5);
3532fa74
FB		 8651#endif
8652#ifdef TARGET_NR_listen
8653 case TARGET_NR_listen:
72eb7ea8 8654 return get_errno(listen(arg1, arg2));
3532fa74
FB		 8655#endif
8656#ifdef TARGET_NR_recv
8657 case TARGET_NR_recv:
72eb7ea8 8658 return do_recvfrom(arg1, arg2, arg3, arg4, 0, 0);
3532fa74
FB		 8659#endif
8660#ifdef TARGET_NR_recvfrom
8661 case TARGET_NR_recvfrom:
72eb7ea8 8662 return do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6);
3532fa74
FB		 8663#endif
8664#ifdef TARGET_NR_recvmsg
8665 case TARGET_NR_recvmsg:
72eb7ea8 8666 return do_sendrecvmsg(arg1, arg2, arg3, 0);
3532fa74
FB		 8667#endif
8668#ifdef TARGET_NR_send
8669 case TARGET_NR_send:
72eb7ea8 8670 return do_sendto(arg1, arg2, arg3, arg4, 0, 0);
3532fa74
FB		 8671#endif
8672#ifdef TARGET_NR_sendmsg
8673 case TARGET_NR_sendmsg:
72eb7ea8 8674 return do_sendrecvmsg(arg1, arg2, arg3, 1);
3532fa74 8675#endif
f19e00d7
AG		 8676#ifdef TARGET_NR_sendmmsg
8677 case TARGET_NR_sendmmsg:
72eb7ea8 8678 return do_sendrecvmmsg(arg1, arg2, arg3, arg4, 1);
f19e00d7 8679 case TARGET_NR_recvmmsg:
72eb7ea8 8680 return do_sendrecvmmsg(arg1, arg2, arg3, arg4, 0);
f19e00d7 8681#endif
3532fa74
FB		 8682#ifdef TARGET_NR_sendto
8683 case TARGET_NR_sendto:
72eb7ea8 8684 return do_sendto(arg1, arg2, arg3, arg4, arg5, arg6);
3532fa74
FB		 8685#endif
8686#ifdef TARGET_NR_shutdown
8687 case TARGET_NR_shutdown:
72eb7ea8 8688 return get_errno(shutdown(arg1, arg2));
3532fa74 8689#endif
f894efd1
LV		 8690#if defined(TARGET_NR_getrandom) && defined(__NR_getrandom)
8691 case TARGET_NR_getrandom:
8692 p = lock_user(VERIFY_WRITE, arg1, arg2, 0);
8693 if (!p) {
2852aafd 8694 return -TARGET_EFAULT;
f894efd1
LV		 8695 }
8696 ret = get_errno(getrandom(p, arg2, arg3));
8697 unlock_user(p, arg1, ret);
72eb7ea8 8698 return ret;
f894efd1 8699#endif
3532fa74
FB		 8700#ifdef TARGET_NR_socket
8701 case TARGET_NR_socket:
72eb7ea8 8702 return do_socket(arg1, arg2, arg3);
3532fa74
FB		 8703#endif
8704#ifdef TARGET_NR_socketpair
8705 case TARGET_NR_socketpair:
72eb7ea8 8706 return do_socketpair(arg1, arg2, arg3, arg4);
3532fa74
FB		 8707#endif
8708#ifdef TARGET_NR_setsockopt
8709 case TARGET_NR_setsockopt:
72eb7ea8 8710 return do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5);
3532fa74 8711#endif
da2c8ad7 8712#if defined(TARGET_NR_syslog)
31e31b8a 8713 case TARGET_NR_syslog:
da2c8ad7
AM		 8714 {
8715 int len = arg2;
7494b0f9 8716
da2c8ad7
AM		 8717 switch (arg1) {
8718 case TARGET_SYSLOG_ACTION_CLOSE: /* Close log */
8719 case TARGET_SYSLOG_ACTION_OPEN: /* Open log */
8720 case TARGET_SYSLOG_ACTION_CLEAR: /* Clear ring buffer */
8721 case TARGET_SYSLOG_ACTION_CONSOLE_OFF: /* Disable logging */
8722 case TARGET_SYSLOG_ACTION_CONSOLE_ON: /* Enable logging */
8723 case TARGET_SYSLOG_ACTION_CONSOLE_LEVEL: /* Set messages level */
8724 case TARGET_SYSLOG_ACTION_SIZE_UNREAD: /* Number of chars */
8725 case TARGET_SYSLOG_ACTION_SIZE_BUFFER: /* Size of the buffer */
72eb7ea8 8726 return get_errno(sys_syslog((int)arg1, NULL, (int)arg3));
da2c8ad7
AM		 8727 case TARGET_SYSLOG_ACTION_READ: /* Read from log */
8728 case TARGET_SYSLOG_ACTION_READ_CLEAR: /* Read/clear msgs */
8729 case TARGET_SYSLOG_ACTION_READ_ALL: /* Read last messages */
8730 {
da2c8ad7 8731 if (len < 0) {
259841c1 8732 return -TARGET_EINVAL;
da2c8ad7 8733 }
da2c8ad7 8734 if (len == 0) {
72eb7ea8 8735 return 0;
da2c8ad7
AM		 8736 }
8737 p = lock_user(VERIFY_WRITE, arg2, arg3, 0);
8738 if (!p) {
259841c1 8739 return -TARGET_EFAULT;
da2c8ad7
AM		 8740 }
8741 ret = get_errno(sys_syslog((int)arg1, p, (int)arg3));
8742 unlock_user(p, arg2, arg3);
8743 }
72eb7ea8 8744 return ret;
da2c8ad7 8745 default:
72eb7ea8 8746 return -TARGET_EINVAL;
da2c8ad7
AM		 8747 }
8748 }
8749 break;
8750#endif
31e31b8a 8751 case TARGET_NR_setitimer:
66fb9763 8752 {
66fb9763
FB		 8753 struct itimerval value, ovalue, *pvalue;
8754
53a5960a 8755 if (arg2) {
66fb9763 8756 pvalue = &value;
788f5ec4
TS		 8757 if (copy_from_user_timeval(&pvalue->it_interval, arg2)
8758 || copy_from_user_timeval(&pvalue->it_value,
8759 arg2 + sizeof(struct target_timeval)))
2852aafd 8760 return -TARGET_EFAULT;
66fb9763
FB		 8761 } else {
8762 pvalue = NULL;
8763 }
8764 ret = get_errno(setitimer(arg1, pvalue, &ovalue));
53a5960a 8765 if (!is_error(ret) && arg3) {
788f5ec4
TS		 8766 if (copy_to_user_timeval(arg3,
8767 &ovalue.it_interval)
8768 || copy_to_user_timeval(arg3 + sizeof(struct target_timeval),
8769 &ovalue.it_value))
2852aafd 8770 return -TARGET_EFAULT;
66fb9763
FB		 8771 }
8772 }
72eb7ea8 8773 return ret;
31e31b8a 8774 case TARGET_NR_getitimer:
66fb9763 8775 {
66fb9763 8776 struct itimerval value;
3b46e624 8777
66fb9763 8778 ret = get_errno(getitimer(arg1, &value));
53a5960a 8779 if (!is_error(ret) && arg2) {
788f5ec4
TS		 8780 if (copy_to_user_timeval(arg2,
8781 &value.it_interval)
8782 || copy_to_user_timeval(arg2 + sizeof(struct target_timeval),
8783 &value.it_value))
2852aafd 8784 return -TARGET_EFAULT;
66fb9763
FB		 8785 }
8786 }
72eb7ea8 8787 return ret;
704eff6c 8788#ifdef TARGET_NR_stat
31e31b8a 8789 case TARGET_NR_stat:
2852aafd
RH		 8790 if (!(p = lock_user_string(arg1))) {
8791 return -TARGET_EFAULT;
8792 }
53a5960a
PB		 8793 ret = get_errno(stat(path(p), &st));
8794 unlock_user(p, arg1, 0);
31e31b8a 8795 goto do_stat;
704eff6c
CG		 8796#endif
8797#ifdef TARGET_NR_lstat
31e31b8a 8798 case TARGET_NR_lstat:
2852aafd
RH		 8799 if (!(p = lock_user_string(arg1))) {
8800 return -TARGET_EFAULT;
8801 }
53a5960a
PB		 8802 ret = get_errno(lstat(path(p), &st));
8803 unlock_user(p, arg1, 0);
31e31b8a 8804 goto do_stat;
704eff6c 8805#endif
4f7f8924 8806#ifdef TARGET_NR_fstat
31e31b8a
FB		 8807 case TARGET_NR_fstat:
8808 {
8809 ret = get_errno(fstat(arg1, &st));
704eff6c 8810#if defined(TARGET_NR_stat) || defined(TARGET_NR_lstat)
31e31b8a 8811 do_stat:
704eff6c 8812#endif
31e31b8a 8813 if (!is_error(ret)) {
53a5960a 8814 struct target_stat *target_st;
e3584658 8815
579a97f7 8816 if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0))
2852aafd 8817 return -TARGET_EFAULT;
12727917 8818 memset(target_st, 0, sizeof(*target_st));
d2fd1af7
FB		 8819 __put_user(st.st_dev, &target_st->st_dev);
8820 __put_user(st.st_ino, &target_st->st_ino);
8821 __put_user(st.st_mode, &target_st->st_mode);
8822 __put_user(st.st_uid, &target_st->st_uid);
8823 __put_user(st.st_gid, &target_st->st_gid);
8824 __put_user(st.st_nlink, &target_st->st_nlink);
8825 __put_user(st.st_rdev, &target_st->st_rdev);
8826 __put_user(st.st_size, &target_st->st_size);
8827 __put_user(st.st_blksize, &target_st->st_blksize);
8828 __put_user(st.st_blocks, &target_st->st_blocks);
8829 __put_user(st.st_atime, &target_st->target_st_atime);
8830 __put_user(st.st_mtime, &target_st->target_st_mtime);
8831 __put_user(st.st_ctime, &target_st->target_st_ctime);
53a5960a 8832 unlock_user_struct(target_st, arg2, 1);
31e31b8a
FB		 8833 }
8834 }
72eb7ea8 8835 return ret;
ebc05488 8836#endif
31e31b8a 8837 case TARGET_NR_vhangup:
72eb7ea8 8838 return get_errno(vhangup());
42ad6ae9
FB		 8839#ifdef TARGET_NR_syscall
8840 case TARGET_NR_syscall:
72eb7ea8
RH		 8841 return do_syscall(cpu_env, arg1 & 0xffff, arg2, arg3, arg4, arg5,
8842 arg6, arg7, arg8, 0);
ebc05488 8843#endif
31e31b8a
FB		 8844 case TARGET_NR_wait4:
8845 {
8846 int status;
992f48a0 8847 abi_long status_ptr = arg2;
31e31b8a 8848 struct rusage rusage, *rusage_ptr;
992f48a0 8849 abi_ulong target_rusage = arg4;
a39fb273 8850 abi_long rusage_err;
31e31b8a
FB		 8851 if (target_rusage)
8852 rusage_ptr = &rusage;
8853 else
8854 rusage_ptr = NULL;
4af80a37 8855 ret = get_errno(safe_wait4(arg1, &status, arg3, rusage_ptr));
31e31b8a 8856 if (!is_error(ret)) {
5379557b 8857 if (status_ptr && ret) {
1d9d8b55 8858 status = host_to_target_waitstatus(status);
2f619698 8859 if (put_user_s32(status, status_ptr))
2852aafd 8860 return -TARGET_EFAULT;
31e31b8a 8861 }
a39fb273
PJ		 8862 if (target_rusage) {
8863 rusage_err = host_to_target_rusage(target_rusage, &rusage);
8864 if (rusage_err) {
8865 ret = rusage_err;
8866 }
8867 }
31e31b8a
FB		 8868 }
8869 }
72eb7ea8 8870 return ret;
e5febef5 8871#ifdef TARGET_NR_swapoff
31e31b8a 8872 case TARGET_NR_swapoff:
579a97f7 8873 if (!(p = lock_user_string(arg1)))
2852aafd 8874 return -TARGET_EFAULT;
53a5960a
PB		 8875 ret = get_errno(swapoff(p));
8876 unlock_user(p, arg1, 0);
72eb7ea8 8877 return ret;
e5febef5 8878#endif
31e31b8a 8879 case TARGET_NR_sysinfo:
a5448a7d 8880 {
53a5960a 8881 struct target_sysinfo *target_value;
a5448a7d
FB		 8882 struct sysinfo value;
8883 ret = get_errno(sysinfo(&value));
53a5960a 8884 if (!is_error(ret) && arg1)
a5448a7d 8885 {
579a97f7 8886 if (!lock_user_struct(VERIFY_WRITE, target_value, arg1, 0))
2852aafd 8887 return -TARGET_EFAULT;
a5448a7d
FB		 8888 __put_user(value.uptime, &target_value->uptime);
8889 __put_user(value.loads[0], &target_value->loads[0]);
8890 __put_user(value.loads[1], &target_value->loads[1]);
8891 __put_user(value.loads[2], &target_value->loads[2]);
8892 __put_user(value.totalram, &target_value->totalram);
8893 __put_user(value.freeram, &target_value->freeram);
8894 __put_user(value.sharedram, &target_value->sharedram);
8895 __put_user(value.bufferram, &target_value->bufferram);
8896 __put_user(value.totalswap, &target_value->totalswap);
8897 __put_user(value.freeswap, &target_value->freeswap);
8898 __put_user(value.procs, &target_value->procs);
8899 __put_user(value.totalhigh, &target_value->totalhigh);
8900 __put_user(value.freehigh, &target_value->freehigh);
8901 __put_user(value.mem_unit, &target_value->mem_unit);
53a5960a 8902 unlock_user_struct(target_value, arg1, 1);
a5448a7d
FB		 8903 }
8904 }
72eb7ea8 8905 return ret;
e5febef5 8906#ifdef TARGET_NR_ipc
31e31b8a 8907 case TARGET_NR_ipc:
72eb7ea8 8908 return do_ipc(cpu_env, arg1, arg2, arg3, arg4, arg5, arg6);
e5febef5 8909#endif
e5289087
AJ		 8910#ifdef TARGET_NR_semget
8911 case TARGET_NR_semget:
72eb7ea8 8912 return get_errno(semget(arg1, arg2, arg3));
e5289087
AJ		 8913#endif
8914#ifdef TARGET_NR_semop
8915 case TARGET_NR_semop:
72eb7ea8 8916 return do_semop(arg1, arg2, arg3);
e5289087
AJ		 8917#endif
8918#ifdef TARGET_NR_semctl
8919 case TARGET_NR_semctl:
72eb7ea8 8920 return do_semctl(arg1, arg2, arg3, arg4);
e5289087 8921#endif
eeb438c1
AJ		 8922#ifdef TARGET_NR_msgctl
8923 case TARGET_NR_msgctl:
72eb7ea8 8924 return do_msgctl(arg1, arg2, arg3);
eeb438c1
AJ		 8925#endif
8926#ifdef TARGET_NR_msgget
8927 case TARGET_NR_msgget:
72eb7ea8 8928 return get_errno(msgget(arg1, arg2));
eeb438c1
AJ		 8929#endif
8930#ifdef TARGET_NR_msgrcv
8931 case TARGET_NR_msgrcv:
72eb7ea8 8932 return do_msgrcv(arg1, arg2, arg3, arg4, arg5);
eeb438c1
AJ		 8933#endif
8934#ifdef TARGET_NR_msgsnd
8935 case TARGET_NR_msgsnd:
72eb7ea8 8936 return do_msgsnd(arg1, arg2, arg3, arg4);
88a8c984
RV		 8937#endif
8938#ifdef TARGET_NR_shmget
8939 case TARGET_NR_shmget:
72eb7ea8 8940 return get_errno(shmget(arg1, arg2, arg3));
88a8c984
RV		 8941#endif
8942#ifdef TARGET_NR_shmctl
8943 case TARGET_NR_shmctl:
72eb7ea8 8944 return do_shmctl(arg1, arg2, arg3);
88a8c984
RV		 8945#endif
8946#ifdef TARGET_NR_shmat
8947 case TARGET_NR_shmat:
72eb7ea8 8948 return do_shmat(cpu_env, arg1, arg2, arg3);
88a8c984
RV		 8949#endif
8950#ifdef TARGET_NR_shmdt
8951 case TARGET_NR_shmdt:
72eb7ea8 8952 return do_shmdt(arg1);
eeb438c1 8953#endif
31e31b8a 8954 case TARGET_NR_fsync:
72eb7ea8 8955 return get_errno(fsync(arg1));
31e31b8a 8956 case TARGET_NR_clone:
4ce6243d
PM		 8957 /* Linux manages to have three different orderings for its
8958 * arguments to clone(); the BACKWARDS and BACKWARDS2 defines
8959 * match the kernel's CONFIG_CLONE_* settings.
8960 * Microblaze is further special in that it uses a sixth
8961 * implicit argument to clone for the TLS pointer.
8962 */
8963#if defined(TARGET_MICROBLAZE)
a5b3bdcb 8964 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg4, arg6, arg5));
4ce6243d
PM		 8965#elif defined(TARGET_CLONE_BACKWARDS)
8966 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg4, arg5));
8967#elif defined(TARGET_CLONE_BACKWARDS2)
a4c075f1 8968 ret = get_errno(do_fork(cpu_env, arg2, arg1, arg3, arg5, arg4));
0b6d3ae0 8969#else
4ce6243d 8970 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg5, arg4));
0b6d3ae0 8971#endif
72eb7ea8 8972 return ret;
ec86b0fb
FB		 8973#ifdef __NR_exit_group
8974 /* new thread calls */
8975 case TARGET_NR_exit_group:
708b6a64 8976 preexit_cleanup(cpu_env, arg1);
72eb7ea8 8977 return get_errno(exit_group(arg1));
ec86b0fb 8978#endif
31e31b8a 8979 case TARGET_NR_setdomainname:
579a97f7 8980 if (!(p = lock_user_string(arg1)))
2852aafd 8981 return -TARGET_EFAULT;
53a5960a
PB		 8982 ret = get_errno(setdomainname(p, arg2));
8983 unlock_user(p, arg1, 0);
72eb7ea8 8984 return ret;
31e31b8a
FB		 8985 case TARGET_NR_uname:
8986 /* no need to transcode because we use the linux syscall */
29e619b1
FB		 8987 {
8988 struct new_utsname * buf;
3b46e624 8989
579a97f7 8990 if (!lock_user_struct(VERIFY_WRITE, buf, arg1, 0))
2852aafd 8991 return -TARGET_EFAULT;
29e619b1
FB		 8992 ret = get_errno(sys_uname(buf));
8993 if (!is_error(ret)) {
332c9781 8994 /* Overwrite the native machine name with whatever is being
29e619b1 8995 emulated. */
871f95c6
PMD		 8996 g_strlcpy(buf->machine, cpu_to_uname_machine(cpu_env),
8997 sizeof(buf->machine));
c5937220 8998 /* Allow the user to override the reported release. */
332c9781
PM		 8999 if (qemu_uname_release && *qemu_uname_release) {
9000 g_strlcpy(buf->release, qemu_uname_release,
9001 sizeof(buf->release));
9002 }
29e619b1 9003 }
53a5960a 9004 unlock_user_struct(buf, arg1, 1);
29e619b1 9005 }
72eb7ea8 9006 return ret;
6dbad63e 9007#ifdef TARGET_I386
31e31b8a 9008 case TARGET_NR_modify_ldt:
72eb7ea8 9009 return do_modify_ldt(cpu_env, arg1, arg2, arg3);
84409ddb 9010#if !defined(TARGET_X86_64)
5cd4393b 9011 case TARGET_NR_vm86:
72eb7ea8 9012 return do_vm86(cpu_env, arg1, arg2);
84409ddb 9013#endif
6dbad63e 9014#endif
31e31b8a 9015 case TARGET_NR_adjtimex:
19f59bce
AM		 9016 {
9017 struct timex host_buf;
9018
9019 if (target_to_host_timex(&host_buf, arg1) != 0) {
2852aafd 9020 return -TARGET_EFAULT;
19f59bce
AM		 9021 }
9022 ret = get_errno(adjtimex(&host_buf));
9023 if (!is_error(ret)) {
9024 if (host_to_target_timex(arg1, &host_buf) != 0) {
2852aafd 9025 return -TARGET_EFAULT;
19f59bce
AM		 9026 }
9027 }
9028 }
72eb7ea8 9029 return ret;
38860a03
AM		 9030#if defined(TARGET_NR_clock_adjtime) && defined(CONFIG_CLOCK_ADJTIME)
9031 case TARGET_NR_clock_adjtime:
9032 {
9033 struct timex htx, *phtx = &htx;
9034
9035 if (target_to_host_timex(phtx, arg2) != 0) {
2852aafd 9036 return -TARGET_EFAULT;
38860a03
AM		 9037 }
9038 ret = get_errno(clock_adjtime(arg1, phtx));
9039 if (!is_error(ret) && phtx) {
9040 if (host_to_target_timex(arg2, phtx) != 0) {
2852aafd 9041 return -TARGET_EFAULT;
38860a03
AM		 9042 }
9043 }
9044 }
72eb7ea8 9045 return ret;
38860a03 9046#endif
31e31b8a 9047 case TARGET_NR_getpgid:
72eb7ea8 9048 return get_errno(getpgid(arg1));
31e31b8a 9049 case TARGET_NR_fchdir:
72eb7ea8 9050 return get_errno(fchdir(arg1));
31e31b8a 9051 case TARGET_NR_personality:
72eb7ea8 9052 return get_errno(personality(arg1));
7a3148a9 9053#ifdef TARGET_NR__llseek /* Not on alpha */
31e31b8a
FB		 9054 case TARGET_NR__llseek:
9055 {
0c1592d9 9056 int64_t res;
d35b261c 9057#if !defined(__NR_llseek)
9fea273c 9058 res = lseek(arg1, ((uint64_t)arg2 << 32) | (abi_ulong)arg3, arg5);
0c1592d9
PM		 9059 if (res == -1) {
9060 ret = get_errno(res);
9061 } else {
9062 ret = 0;
9063 }
4f2ac237 9064#else
31e31b8a 9065 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
4f2ac237 9066#endif
0c1592d9 9067 if ((ret == 0) && put_user_s64(res, arg4)) {
2852aafd 9068 return -TARGET_EFAULT;
0c1592d9 9069 }
31e31b8a 9070 }
72eb7ea8 9071 return ret;
7a3148a9 9072#endif
704eff6c 9073#ifdef TARGET_NR_getdents
31e31b8a 9074 case TARGET_NR_getdents:
2b3f64cb 9075#ifdef EMULATE_GETDENTS_WITH_GETDENTS
d83c8733 9076#if TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64
4add45b4 9077 {
53a5960a 9078 struct target_dirent *target_dirp;
6556a833 9079 struct linux_dirent *dirp;
992f48a0 9080 abi_long count = arg3;
4add45b4 9081
0e173b24
HK		 9082 dirp = g_try_malloc(count);
9083 if (!dirp) {
259841c1 9084 return -TARGET_ENOMEM;
0da46a6e 9085 }
3b46e624 9086
4add45b4
FB		 9087 ret = get_errno(sys_getdents(arg1, dirp, count));
9088 if (!is_error(ret)) {
6556a833 9089 struct linux_dirent *de;
4add45b4
FB		 9090 struct target_dirent *tde;
9091 int len = ret;
9092 int reclen, treclen;
9093 int count1, tnamelen;
9094
9095 count1 = 0;
9096 de = dirp;
579a97f7 9097 if (!(target_dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
2852aafd 9098 return -TARGET_EFAULT;
4add45b4
FB		 9099 tde = target_dirp;
9100 while (len > 0) {
9101 reclen = de->d_reclen;
333858b7
DL		 9102 tnamelen = reclen - offsetof(struct linux_dirent, d_name);
9103 assert(tnamelen >= 0);
9104 treclen = tnamelen + offsetof(struct target_dirent, d_name);
9105 assert(count1 + treclen <= count);
4add45b4 9106 tde->d_reclen = tswap16(treclen);
cbb21eed
MB		 9107 tde->d_ino = tswapal(de->d_ino);
9108 tde->d_off = tswapal(de->d_off);
333858b7 9109 memcpy(tde->d_name, de->d_name, tnamelen);
6556a833 9110 de = (struct linux_dirent *)((char *)de + reclen);
4add45b4 9111 len -= reclen;
1c5bf3bf 9112 tde = (struct target_dirent *)((char *)tde + treclen);
4add45b4
FB		 9113 count1 += treclen;
9114 }
9115 ret = count1;
579a97f7 9116 unlock_user(target_dirp, arg2, ret);
4add45b4 9117 }
0e173b24 9118 g_free(dirp);
4add45b4
FB		 9119 }
9120#else
31e31b8a 9121 {
6556a833 9122 struct linux_dirent *dirp;
992f48a0 9123 abi_long count = arg3;
dab2ed99 9124
579a97f7 9125 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
2852aafd 9126 return -TARGET_EFAULT;
72f03900 9127 ret = get_errno(sys_getdents(arg1, dirp, count));
31e31b8a 9128 if (!is_error(ret)) {
6556a833 9129 struct linux_dirent *de;
31e31b8a
FB		 9130 int len = ret;
9131 int reclen;
9132 de = dirp;
9133 while (len > 0) {
8083a3e5 9134 reclen = de->d_reclen;
31e31b8a
FB		 9135 if (reclen > len)
9136 break;
8083a3e5 9137 de->d_reclen = tswap16(reclen);
31e31b8a
FB		 9138 tswapls(&de->d_ino);
9139 tswapls(&de->d_off);
6556a833 9140 de = (struct linux_dirent *)((char *)de + reclen);
31e31b8a
FB		 9141 len -= reclen;
9142 }
9143 }
53a5960a 9144 unlock_user(dirp, arg2, ret);
3307e236
PM		 9145 }
9146#endif
9147#else
9148 /* Implement getdents in terms of getdents64 */
9149 {
9150 struct linux_dirent64 *dirp;
9151 abi_long count = arg3;
9152
9153 dirp = lock_user(VERIFY_WRITE, arg2, count, 0);
9154 if (!dirp) {
2852aafd 9155 return -TARGET_EFAULT;
3307e236
PM		 9156 }
9157 ret = get_errno(sys_getdents64(arg1, dirp, count));
9158 if (!is_error(ret)) {
9159 /* Convert the dirent64 structs to target dirent. We do this
9160 * in-place, since we can guarantee that a target_dirent is no
9161 * larger than a dirent64; however this means we have to be
9162 * careful to read everything before writing in the new format.
9163 */
9164 struct linux_dirent64 *de;
9165 struct target_dirent *tde;
9166 int len = ret;
9167 int tlen = 0;
9168
9169 de = dirp;
9170 tde = (struct target_dirent *)dirp;
9171 while (len > 0) {
9172 int namelen, treclen;
9173 int reclen = de->d_reclen;
9174 uint64_t ino = de->d_ino;
9175 int64_t off = de->d_off;
9176 uint8_t type = de->d_type;
9177
9178 namelen = strlen(de->d_name);
9179 treclen = offsetof(struct target_dirent, d_name)
9180 + namelen + 2;
9181 treclen = QEMU_ALIGN_UP(treclen, sizeof(abi_long));
9182
9183 memmove(tde->d_name, de->d_name, namelen + 1);
9184 tde->d_ino = tswapal(ino);
9185 tde->d_off = tswapal(off);
9186 tde->d_reclen = tswap16(treclen);
9187 /* The target_dirent type is in what was formerly a padding
9188 * byte at the end of the structure:
9189 */
9190 *(((char *)tde) + treclen - 1) = type;
9191
9192 de = (struct linux_dirent64 *)((char *)de + reclen);
9193 tde = (struct target_dirent *)((char *)tde + treclen);
9194 len -= reclen;
9195 tlen += treclen;
9196 }
9197 ret = tlen;
9198 }
9199 unlock_user(dirp, arg2, ret);
31e31b8a 9200 }
4add45b4 9201#endif
72eb7ea8 9202 return ret;
704eff6c 9203#endif /* TARGET_NR_getdents */
3ae43202 9204#if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
dab2ed99
FB		 9205 case TARGET_NR_getdents64:
9206 {
6556a833 9207 struct linux_dirent64 *dirp;
992f48a0 9208 abi_long count = arg3;
579a97f7 9209 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
2852aafd 9210 return -TARGET_EFAULT;
dab2ed99
FB		 9211 ret = get_errno(sys_getdents64(arg1, dirp, count));
9212 if (!is_error(ret)) {
6556a833 9213 struct linux_dirent64 *de;
dab2ed99
FB		 9214 int len = ret;
9215 int reclen;
9216 de = dirp;
9217 while (len > 0) {
8083a3e5 9218 reclen = de->d_reclen;
dab2ed99
FB		 9219 if (reclen > len)
9220 break;
8083a3e5 9221 de->d_reclen = tswap16(reclen);
8582a53a
FB		 9222 tswap64s((uint64_t *)&de->d_ino);
9223 tswap64s((uint64_t *)&de->d_off);
6556a833 9224 de = (struct linux_dirent64 *)((char *)de + reclen);
dab2ed99
FB		 9225 len -= reclen;
9226 }
9227 }
53a5960a 9228 unlock_user(dirp, arg2, ret);
dab2ed99 9229 }
72eb7ea8 9230 return ret;
a541f297 9231#endif /* TARGET_NR_getdents64 */
9468a5d4 9232#if defined(TARGET_NR__newselect)
31e31b8a 9233 case TARGET_NR__newselect:
72eb7ea8 9234 return do_select(arg1, arg2, arg3, arg4, arg5);
e5febef5 9235#endif
d8035d4c
MF		 9236#if defined(TARGET_NR_poll) || defined(TARGET_NR_ppoll)
9237# ifdef TARGET_NR_poll
9de5e440 9238 case TARGET_NR_poll:
d8035d4c
MF		 9239# endif
9240# ifdef TARGET_NR_ppoll
9241 case TARGET_NR_ppoll:
9242# endif
9de5e440 9243 {
53a5960a 9244 struct target_pollfd *target_pfd;
9de5e440 9245 unsigned int nfds = arg2;
9de5e440 9246 struct pollfd *pfd;
7854b056 9247 unsigned int i;
9de5e440 9248
3e24bb3f
LV		 9249 pfd = NULL;
9250 target_pfd = NULL;
9251 if (nfds) {
ce9c139d 9252 if (nfds > (INT_MAX / sizeof(struct target_pollfd))) {
72eb7ea8 9253 return -TARGET_EINVAL;
ce9c139d
PM		 9254 }
9255
3e24bb3f
LV		 9256 target_pfd = lock_user(VERIFY_WRITE, arg1,
9257 sizeof(struct target_pollfd) * nfds, 1);
9258 if (!target_pfd) {
2852aafd 9259 return -TARGET_EFAULT;
3e24bb3f 9260 }
d8035d4c 9261
3e24bb3f
LV		 9262 pfd = alloca(sizeof(struct pollfd) * nfds);
9263 for (i = 0; i < nfds; i++) {
9264 pfd[i].fd = tswap32(target_pfd[i].fd);
9265 pfd[i].events = tswap16(target_pfd[i].events);
9266 }
9de5e440 9267 }
d8035d4c 9268
a6130237 9269 switch (num) {
d8035d4c 9270# ifdef TARGET_NR_ppoll
a6130237
PM		 9271 case TARGET_NR_ppoll:
9272 {
d8035d4c
MF		 9273 struct timespec _timeout_ts, *timeout_ts = &_timeout_ts;
9274 target_sigset_t *target_set;
9275 sigset_t _set, *set = &_set;
9276
9277 if (arg3) {
9278 if (target_to_host_timespec(timeout_ts, arg3)) {
9279 unlock_user(target_pfd, arg1, 0);
2852aafd 9280 return -TARGET_EFAULT;
d8035d4c
MF		 9281 }
9282 } else {
9283 timeout_ts = NULL;
9284 }
9285
9286 if (arg4) {
c815701e
PM		 9287 if (arg5 != sizeof(target_sigset_t)) {
9288 unlock_user(target_pfd, arg1, 0);
72eb7ea8 9289 return -TARGET_EINVAL;
c815701e
PM		 9290 }
9291
d8035d4c
MF		 9292 target_set = lock_user(VERIFY_READ, arg4, sizeof(target_sigset_t), 1);
9293 if (!target_set) {
9294 unlock_user(target_pfd, arg1, 0);
2852aafd 9295 return -TARGET_EFAULT;
d8035d4c
MF		 9296 }
9297 target_to_host_sigset(set, target_set);
9298 } else {
9299 set = NULL;
9300 }
9301
a6130237
PM		 9302 ret = get_errno(safe_ppoll(pfd, nfds, timeout_ts,
9303 set, SIGSET_T_SIZE));
d8035d4c
MF		 9304
9305 if (!is_error(ret) && arg3) {
9306 host_to_target_timespec(arg3, timeout_ts);
9307 }
9308 if (arg4) {
9309 unlock_user(target_set, arg4, 0);
9310 }
a6130237
PM		 9311 break;
9312 }
d8035d4c 9313# endif
a6130237
PM		 9314# ifdef TARGET_NR_poll
9315 case TARGET_NR_poll:
9316 {
9317 struct timespec ts, *pts;
9318
9319 if (arg3 >= 0) {
9320 /* Convert ms to secs, ns */
9321 ts.tv_sec = arg3 / 1000;
9322 ts.tv_nsec = (arg3 % 1000) * 1000000LL;
9323 pts = &ts;
9324 } else {
9325 /* -ve poll() timeout means "infinite" */
9326 pts = NULL;
9327 }
9328 ret = get_errno(safe_ppoll(pfd, nfds, pts, NULL, 0));
9329 break;
9330 }
d8035d4c 9331# endif
a6130237
PM		 9332 default:
9333 g_assert_not_reached();
9334 }
d8035d4c 9335
9de5e440
FB		 9336 if (!is_error(ret)) {
9337 for(i = 0; i < nfds; i++) {
5cd4393b 9338 target_pfd[i].revents = tswap16(pfd[i].revents);
9de5e440
FB		 9339 }
9340 }
30cb4cde 9341 unlock_user(target_pfd, arg1, sizeof(struct target_pollfd) * nfds);
9de5e440 9342 }
72eb7ea8 9343 return ret;
e5febef5 9344#endif
31e31b8a 9345 case TARGET_NR_flock:
9de5e440
FB		 9346 /* NOTE: the flock constant seems to be the same for every
9347 Linux platform */
72eb7ea8 9348 return get_errno(safe_flock(arg1, arg2));
31e31b8a
FB		 9349 case TARGET_NR_readv:
9350 {
f287b2c2
RH		 9351 struct iovec *vec = lock_iovec(VERIFY_WRITE, arg2, arg3, 0);
9352 if (vec != NULL) {
918c03ed 9353 ret = get_errno(safe_readv(arg1, vec, arg3));
f287b2c2
RH		 9354 unlock_iovec(vec, arg2, arg3, 1);
9355 } else {
9356 ret = -host_to_target_errno(errno);
9357 }
31e31b8a 9358 }
72eb7ea8 9359 return ret;
31e31b8a
FB		 9360 case TARGET_NR_writev:
9361 {
f287b2c2
RH		 9362 struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
9363 if (vec != NULL) {
918c03ed 9364 ret = get_errno(safe_writev(arg1, vec, arg3));
f287b2c2
RH		 9365 unlock_iovec(vec, arg2, arg3, 0);
9366 } else {
9367 ret = -host_to_target_errno(errno);
9368 }
31e31b8a 9369 }
72eb7ea8 9370 return ret;
0f26386c
DJ		 9371#if defined(TARGET_NR_preadv)
9372 case TARGET_NR_preadv:
9373 {
9374 struct iovec *vec = lock_iovec(VERIFY_WRITE, arg2, arg3, 0);
9375 if (vec != NULL) {
9ac22517
MF		 9376 unsigned long low, high;
9377
9378 target_to_host_low_high(arg4, arg5, &low, &high);
9379 ret = get_errno(safe_preadv(arg1, vec, arg3, low, high));
0f26386c
DJ		 9380 unlock_iovec(vec, arg2, arg3, 1);
9381 } else {
9382 ret = -host_to_target_errno(errno);
f8d00fba
DJ		 9383 }
9384 }
72eb7ea8 9385 return ret;
f8d00fba
DJ		 9386#endif
9387#if defined(TARGET_NR_pwritev)
9388 case TARGET_NR_pwritev:
9389 {
9390 struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
9391 if (vec != NULL) {
9ac22517
MF		 9392 unsigned long low, high;
9393
9394 target_to_host_low_high(arg4, arg5, &low, &high);
9395 ret = get_errno(safe_pwritev(arg1, vec, arg3, low, high));
f8d00fba
DJ		 9396 unlock_iovec(vec, arg2, arg3, 0);
9397 } else {
9398 ret = -host_to_target_errno(errno);
0f26386c
DJ		 9399 }
9400 }
72eb7ea8 9401 return ret;
0f26386c 9402#endif
31e31b8a 9403 case TARGET_NR_getsid:
72eb7ea8 9404 return get_errno(getsid(arg1));
7a3148a9 9405#if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */
31e31b8a 9406 case TARGET_NR_fdatasync:
72eb7ea8 9407 return get_errno(fdatasync(arg1));
7a3148a9 9408#endif
704eff6c 9409#ifdef TARGET_NR__sysctl
31e31b8a 9410 case TARGET_NR__sysctl:
0da46a6e 9411 /* We don't implement this, but ENOTDIR is always a safe
29e619b1 9412 return value. */
72eb7ea8 9413 return -TARGET_ENOTDIR;
704eff6c 9414#endif
737de1d1
MF		 9415 case TARGET_NR_sched_getaffinity:
9416 {
9417 unsigned int mask_size;
9418 unsigned long *mask;
9419
9420 /*
9421 * sched_getaffinity needs multiples of ulong, so need to take
9422 * care of mismatches between target ulong and host ulong sizes.
9423 */
9424 if (arg2 & (sizeof(abi_ulong) - 1)) {
72eb7ea8 9425 return -TARGET_EINVAL;
737de1d1
MF		 9426 }
9427 mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1);
9428
9429 mask = alloca(mask_size);
2e0a8713 9430 memset(mask, 0, mask_size);
737de1d1
MF		 9431 ret = get_errno(sys_sched_getaffinity(arg1, mask_size, mask));
9432
9433 if (!is_error(ret)) {
be3bd286
PM		 9434 if (ret > arg2) {
9435 /* More data returned than the caller's buffer will fit.
9436 * This only happens if sizeof(abi_long) < sizeof(long)
9437 * and the caller passed us a buffer holding an odd number
9438 * of abi_longs. If the host kernel is actually using the
9439 * extra 4 bytes then fail EINVAL; otherwise we can just
9440 * ignore them and only copy the interesting part.
9441 */
9442 int numcpus = sysconf(_SC_NPROCESSORS_CONF);
9443 if (numcpus > arg2 * 8) {
72eb7ea8 9444 return -TARGET_EINVAL;
be3bd286
PM		 9445 }
9446 ret = arg2;
9447 }
9448
5fdefcf8 9449 if (host_to_target_cpu_mask(mask, mask_size, arg3, ret)) {
2852aafd 9450 return -TARGET_EFAULT;
5fdefcf8 9451 }
737de1d1
MF		 9452 }
9453 }
72eb7ea8 9454 return ret;
737de1d1
MF		 9455 case TARGET_NR_sched_setaffinity:
9456 {
9457 unsigned int mask_size;
9458 unsigned long *mask;
9459
9460 /*
9461 * sched_setaffinity needs multiples of ulong, so need to take
9462 * care of mismatches between target ulong and host ulong sizes.
9463 */
9464 if (arg2 & (sizeof(abi_ulong) - 1)) {
72eb7ea8 9465 return -TARGET_EINVAL;
737de1d1
MF		 9466 }
9467 mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1);
737de1d1 9468 mask = alloca(mask_size);
2e0a8713
ST		 9469
9470 ret = target_to_host_cpu_mask(mask, mask_size, arg3, arg2);
9471 if (ret) {
72eb7ea8 9472 return ret;
737de1d1 9473 }
737de1d1 9474
72eb7ea8 9475 return get_errno(sys_sched_setaffinity(arg1, mask_size, mask));
737de1d1 9476 }
b827c3ed
ST		 9477 case TARGET_NR_getcpu:
9478 {
9479 unsigned cpu, node;
9480 ret = get_errno(sys_getcpu(arg1 ? &cpu : NULL,
9481 arg2 ? &node : NULL,
9482 NULL));
9483 if (is_error(ret)) {
259841c1 9484 return ret;
b827c3ed
ST		 9485 }
9486 if (arg1 && put_user_u32(cpu, arg1)) {
2852aafd 9487 return -TARGET_EFAULT;
b827c3ed
ST		 9488 }
9489 if (arg2 && put_user_u32(node, arg2)) {
2852aafd 9490 return -TARGET_EFAULT;
b827c3ed
ST		 9491 }
9492 }
72eb7ea8 9493 return ret;
31e31b8a 9494 case TARGET_NR_sched_setparam:
5cd4393b 9495 {
53a5960a 9496 struct sched_param *target_schp;
5cd4393b 9497 struct sched_param schp;
53a5960a 9498
a1d5c5b2
TM		 9499 if (arg2 == 0) {
9500 return -TARGET_EINVAL;
9501 }
579a97f7 9502 if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1))
2852aafd 9503 return -TARGET_EFAULT;
5cd4393b 9504 schp.sched_priority = tswap32(target_schp->sched_priority);
53a5960a 9505 unlock_user_struct(target_schp, arg2, 0);
72eb7ea8 9506 return get_errno(sched_setparam(arg1, &schp));
5cd4393b 9507 }
31e31b8a 9508 case TARGET_NR_sched_getparam:
5cd4393b 9509 {
53a5960a 9510 struct sched_param *target_schp;
5cd4393b 9511 struct sched_param schp;
a1d5c5b2
TM		 9512
9513 if (arg2 == 0) {
9514 return -TARGET_EINVAL;
9515 }
5cd4393b
FB		 9516 ret = get_errno(sched_getparam(arg1, &schp));
9517 if (!is_error(ret)) {
579a97f7 9518 if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0))
2852aafd 9519 return -TARGET_EFAULT;
5cd4393b 9520 target_schp->sched_priority = tswap32(schp.sched_priority);
53a5960a 9521 unlock_user_struct(target_schp, arg2, 1);
5cd4393b
FB		 9522 }
9523 }
72eb7ea8 9524 return ret;
31e31b8a 9525 case TARGET_NR_sched_setscheduler:
5cd4393b 9526 {
53a5960a 9527 struct sched_param *target_schp;
5cd4393b 9528 struct sched_param schp;
a1d5c5b2
TM		 9529 if (arg3 == 0) {
9530 return -TARGET_EINVAL;
9531 }
579a97f7 9532 if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1))
2852aafd 9533 return -TARGET_EFAULT;
5cd4393b 9534 schp.sched_priority = tswap32(target_schp->sched_priority);
53a5960a 9535 unlock_user_struct(target_schp, arg3, 0);
72eb7ea8 9536 return get_errno(sched_setscheduler(arg1, arg2, &schp));
5cd4393b 9537 }
31e31b8a 9538 case TARGET_NR_sched_getscheduler:
72eb7ea8 9539 return get_errno(sched_getscheduler(arg1));
31e31b8a 9540 case TARGET_NR_sched_yield:
72eb7ea8 9541 return get_errno(sched_yield());
31e31b8a 9542 case TARGET_NR_sched_get_priority_max:
72eb7ea8 9543 return get_errno(sched_get_priority_max(arg1));
31e31b8a 9544 case TARGET_NR_sched_get_priority_min:
72eb7ea8 9545 return get_errno(sched_get_priority_min(arg1));
31e31b8a 9546 case TARGET_NR_sched_rr_get_interval:
5cd4393b 9547 {
5cd4393b
FB		 9548 struct timespec ts;
9549 ret = get_errno(sched_rr_get_interval(arg1, &ts));
9550 if (!is_error(ret)) {
d4290c40 9551 ret = host_to_target_timespec(arg2, &ts);
5cd4393b
FB		 9552 }
9553 }
72eb7ea8 9554 return ret;
31e31b8a 9555 case TARGET_NR_nanosleep:
1b6b029e 9556 {
1b6b029e 9557 struct timespec req, rem;
53a5960a 9558 target_to_host_timespec(&req, arg1);
9e518226 9559 ret = get_errno(safe_nanosleep(&req, &rem));
53a5960a
PB		 9560 if (is_error(ret) && arg2) {
9561 host_to_target_timespec(arg2, &rem);
1b6b029e
FB		 9562 }
9563 }
72eb7ea8 9564 return ret;
31e31b8a 9565 case TARGET_NR_prctl:
1e6722f8
PM		 9566 switch (arg1) {
9567 case PR_GET_PDEATHSIG:
9568 {
9569 int deathsig;
9570 ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5));
9571 if (!is_error(ret) && arg2
9572 && put_user_ual(deathsig, arg2)) {
2852aafd 9573 return -TARGET_EFAULT;
e5574487 9574 }
72eb7ea8 9575 return ret;
1e6722f8 9576 }
db9526b1
PM		 9577#ifdef PR_GET_NAME
9578 case PR_GET_NAME:
9579 {
9580 void *name = lock_user(VERIFY_WRITE, arg2, 16, 1);
9581 if (!name) {
2852aafd 9582 return -TARGET_EFAULT;
db9526b1
PM		 9583 }
9584 ret = get_errno(prctl(arg1, (unsigned long)name,
9585 arg3, arg4, arg5));
9586 unlock_user(name, arg2, 16);
72eb7ea8 9587 return ret;
db9526b1
PM		 9588 }
9589 case PR_SET_NAME:
9590 {
9591 void *name = lock_user(VERIFY_READ, arg2, 16, 1);
9592 if (!name) {
2852aafd 9593 return -TARGET_EFAULT;
db9526b1
PM		 9594 }
9595 ret = get_errno(prctl(arg1, (unsigned long)name,
9596 arg3, arg4, arg5));
9597 unlock_user(name, arg2, 0);
72eb7ea8 9598 return ret;
db9526b1
PM		 9599 }
9600#endif
5b702ffd
SM		 9601#ifdef TARGET_MIPS
9602 case TARGET_PR_GET_FP_MODE:
64ea3d67
SM		 9603 {
9604 CPUMIPSState *env = ((CPUMIPSState *)cpu_env);
9605 ret = 0;
9606 if (env->CP0_Status & (1 << CP0St_FR)) {
9607 ret |= TARGET_PR_FP_MODE_FR;
9608 }
9609 if (env->CP0_Config5 & (1 << CP0C5_FRE)) {
9610 ret |= TARGET_PR_FP_MODE_FRE;
9611 }
9612 return ret;
9613 }
5b702ffd 9614 case TARGET_PR_SET_FP_MODE:
64ea3d67
SM		 9615 {
9616 CPUMIPSState *env = ((CPUMIPSState *)cpu_env);
9617 bool old_fr = env->CP0_Status & (1 << CP0St_FR);
6456c510 9618 bool old_fre = env->CP0_Config5 & (1 << CP0C5_FRE);
64ea3d67
SM		 9619 bool new_fr = arg2 & TARGET_PR_FP_MODE_FR;
9620 bool new_fre = arg2 & TARGET_PR_FP_MODE_FRE;
9621
6456c510
SM		 9622 const unsigned int known_bits = TARGET_PR_FP_MODE_FR |
9623 TARGET_PR_FP_MODE_FRE;
9624
9625 /* If nothing to change, return right away, successfully. */
9626 if (old_fr == new_fr && old_fre == new_fre) {
9627 return 0;
9628 }
9629 /* Check the value is valid */
9630 if (arg2 & ~known_bits) {
9631 return -TARGET_EOPNOTSUPP;
9632 }
9633 /* Setting FRE without FR is not supported. */
9634 if (new_fre && !new_fr) {
9635 return -TARGET_EOPNOTSUPP;
9636 }
64ea3d67
SM		 9637 if (new_fr && !(env->active_fpu.fcr0 & (1 << FCR0_F64))) {
9638 /* FR1 is not supported */
9639 return -TARGET_EOPNOTSUPP;
9640 }
9641 if (!new_fr && (env->active_fpu.fcr0 & (1 << FCR0_F64))
9642 && !(env->CP0_Status_rw_bitmask & (1 << CP0St_FR))) {
9643 /* cannot set FR=0 */
9644 return -TARGET_EOPNOTSUPP;
9645 }
9646 if (new_fre && !(env->active_fpu.fcr0 & (1 << FCR0_FREP))) {
9647 /* Cannot set FRE=1 */
9648 return -TARGET_EOPNOTSUPP;
9649 }
9650
9651 int i;
9652 fpr_t *fpr = env->active_fpu.fpr;
9653 for (i = 0; i < 32 ; i += 2) {
9654 if (!old_fr && new_fr) {
9655 fpr[i].w[!FP_ENDIAN_IDX] = fpr[i + 1].w[FP_ENDIAN_IDX];
9656 } else if (old_fr && !new_fr) {
9657 fpr[i + 1].w[FP_ENDIAN_IDX] = fpr[i].w[!FP_ENDIAN_IDX];
9658 }
9659 }
9660
9661 if (new_fr) {
9662 env->CP0_Status |= (1 << CP0St_FR);
9663 env->hflags |= MIPS_HFLAG_F64;
9664 } else {
9665 env->CP0_Status &= ~(1 << CP0St_FR);
6456c510 9666 env->hflags &= ~MIPS_HFLAG_F64;
64ea3d67
SM		 9667 }
9668 if (new_fre) {
9669 env->CP0_Config5 |= (1 << CP0C5_FRE);
9670 if (env->active_fpu.fcr0 & (1 << FCR0_FREP)) {
9671 env->hflags |= MIPS_HFLAG_FRE;
9672 }
9673 } else {
9674 env->CP0_Config5 &= ~(1 << CP0C5_FRE);
6456c510 9675 env->hflags &= ~MIPS_HFLAG_FRE;
64ea3d67
SM		 9676 }
9677
9678 return 0;
9679 }
5b702ffd 9680#endif /* MIPS */
85fc7167
RH		 9681#ifdef TARGET_AARCH64
9682 case TARGET_PR_SVE_SET_VL:
adf92eab
RH		 9683 /*
9684 * We cannot support either PR_SVE_SET_VL_ONEXEC or
9685 * PR_SVE_VL_INHERIT. Note the kernel definition
9686 * of sve_vl_valid allows for VQ=512, i.e. VL=8192,
9687 * even though the current architectural maximum is VQ=16.
9688 */
85fc7167 9689 ret = -TARGET_EINVAL;
cd208a1c 9690 if (cpu_isar_feature(aa64_sve, arm_env_get_cpu(cpu_env))
adf92eab 9691 && arg2 >= 0 && arg2 <= 512 * 16 && !(arg2 & 15)) {
85fc7167 9692 CPUARMState *env = cpu_env;
adf92eab
RH		 9693 ARMCPU *cpu = arm_env_get_cpu(env);
9694 uint32_t vq, old_vq;
9695
9696 old_vq = (env->vfp.zcr_el[1] & 0xf) + 1;
9697 vq = MAX(arg2 / 16, 1);
9698 vq = MIN(vq, cpu->sve_max_vq);
85fc7167
RH		 9699
9700 if (vq < old_vq) {
9701 aarch64_sve_narrow_vq(env, vq);
9702 }
9703 env->vfp.zcr_el[1] = vq - 1;
9704 ret = vq * 16;
9705 }
72eb7ea8 9706 return ret;
85fc7167
RH		 9707 case TARGET_PR_SVE_GET_VL:
9708 ret = -TARGET_EINVAL;
cd208a1c
RH		 9709 {
9710 ARMCPU *cpu = arm_env_get_cpu(cpu_env);
9711 if (cpu_isar_feature(aa64_sve, cpu)) {
9712 ret = ((cpu->env.vfp.zcr_el[1] & 0xf) + 1) * 16;
9713 }
85fc7167 9714 }
72eb7ea8 9715 return ret;
bff63fbf
RH		 9716 case TARGET_PR_PAC_RESET_KEYS:
9717 {
9718 CPUARMState *env = cpu_env;
9719 ARMCPU *cpu = arm_env_get_cpu(env);
9720
9721 if (arg3 || arg4 || arg5) {
9722 return -TARGET_EINVAL;
9723 }
9724 if (cpu_isar_feature(aa64_pauth, cpu)) {
9725 int all = (TARGET_PR_PAC_APIAKEY | TARGET_PR_PAC_APIBKEY |
9726 TARGET_PR_PAC_APDAKEY | TARGET_PR_PAC_APDBKEY |
9727 TARGET_PR_PAC_APGAKEY);
9728 if (arg2 == 0) {
9729 arg2 = all;
9730 } else if (arg2 & ~all) {
9731 return -TARGET_EINVAL;
9732 }
9733 if (arg2 & TARGET_PR_PAC_APIAKEY) {
9734 arm_init_pauth_key(&env->apia_key);
9735 }
9736 if (arg2 & TARGET_PR_PAC_APIBKEY) {
9737 arm_init_pauth_key(&env->apib_key);
9738 }
9739 if (arg2 & TARGET_PR_PAC_APDAKEY) {
9740 arm_init_pauth_key(&env->apda_key);
9741 }
9742 if (arg2 & TARGET_PR_PAC_APDBKEY) {
9743 arm_init_pauth_key(&env->apdb_key);
9744 }
9745 if (arg2 & TARGET_PR_PAC_APGAKEY) {
9746 arm_init_pauth_key(&env->apga_key);
9747 }
9748 return 0;
9749 }
9750 }
9751 return -TARGET_EINVAL;
85fc7167 9752#endif /* AARCH64 */
a8b154a6
JC		 9753 case PR_GET_SECCOMP:
9754 case PR_SET_SECCOMP:
9755 /* Disable seccomp to prevent the target disabling syscalls we
9756 * need. */
72eb7ea8 9757 return -TARGET_EINVAL;
1e6722f8
PM		 9758 default:
9759 /* Most prctl options have no pointer arguments */
72eb7ea8 9760 return get_errno(prctl(arg1, arg2, arg3, arg4, arg5));
1e6722f8 9761 }
39b9aae1 9762 break;
d2fd1af7
FB		 9763#ifdef TARGET_NR_arch_prctl
9764 case TARGET_NR_arch_prctl:
9765#if defined(TARGET_I386) && !defined(TARGET_ABI32)
72eb7ea8 9766 return do_arch_prctl(cpu_env, arg1, arg2);
d2fd1af7 9767#else
1a7b2b13 9768#error unreachable
d2fd1af7
FB		 9769#endif
9770#endif
f2c7ba15
AJ		 9771#ifdef TARGET_NR_pread64
9772 case TARGET_NR_pread64:
8bf8e9df 9773 if (regpairs_aligned(cpu_env, num)) {
ae017a5b
AG		 9774 arg4 = arg5;
9775 arg5 = arg6;
9776 }
2bd3f899
PM		 9777 if (arg2 == 0 && arg3 == 0) {
9778 /* Special-case NULL buffer and zero length, which should succeed */
9779 p = 0;
9780 } else {
9781 p = lock_user(VERIFY_WRITE, arg2, arg3, 0);
9782 if (!p) {
9783 return -TARGET_EFAULT;
9784 }
9785 }
f2c7ba15
AJ		 9786 ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5)));
9787 unlock_user(p, arg2, ret);
72eb7ea8 9788 return ret;
f2c7ba15 9789 case TARGET_NR_pwrite64:
8bf8e9df 9790 if (regpairs_aligned(cpu_env, num)) {
ae017a5b
AG		 9791 arg4 = arg5;
9792 arg5 = arg6;
9793 }
2bd3f899
PM		 9794 if (arg2 == 0 && arg3 == 0) {
9795 /* Special-case NULL buffer and zero length, which should succeed */
9796 p = 0;
9797 } else {
9798 p = lock_user(VERIFY_READ, arg2, arg3, 1);
9799 if (!p) {
9800 return -TARGET_EFAULT;
9801 }
9802 }
f2c7ba15
AJ		 9803 ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5)));
9804 unlock_user(p, arg2, 0);
72eb7ea8 9805 return ret;
67867308 9806#endif
31e31b8a 9807 case TARGET_NR_getcwd:
579a97f7 9808 if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0)))
2852aafd 9809 return -TARGET_EFAULT;
53a5960a
PB		 9810 ret = get_errno(sys_getcwd1(p, arg2));
9811 unlock_user(p, arg1, ret);
72eb7ea8 9812 return ret;
31e31b8a
FB		 9813 case TARGET_NR_capget:
9814 case TARGET_NR_capset:
e0eb210e
PM		 9815 {
9816 struct target_user_cap_header *target_header;
9817 struct target_user_cap_data *target_data = NULL;
9818 struct __user_cap_header_struct header;
9819 struct __user_cap_data_struct data[2];
9820 struct __user_cap_data_struct *dataptr = NULL;
9821 int i, target_datalen;
9822 int data_items = 1;
9823
9824 if (!lock_user_struct(VERIFY_WRITE, target_header, arg1, 1)) {
2852aafd 9825 return -TARGET_EFAULT;
e0eb210e
PM		 9826 }
9827 header.version = tswap32(target_header->version);
9828 header.pid = tswap32(target_header->pid);
9829
ec864874 9830 if (header.version != _LINUX_CAPABILITY_VERSION) {
e0eb210e
PM		 9831 /* Version 2 and up takes pointer to two user_data structs */
9832 data_items = 2;
9833 }
9834
9835 target_datalen = sizeof(*target_data) * data_items;
9836
9837 if (arg2) {
9838 if (num == TARGET_NR_capget) {
9839 target_data = lock_user(VERIFY_WRITE, arg2, target_datalen, 0);
9840 } else {
9841 target_data = lock_user(VERIFY_READ, arg2, target_datalen, 1);
9842 }
9843 if (!target_data) {
9844 unlock_user_struct(target_header, arg1, 0);
2852aafd 9845 return -TARGET_EFAULT;
e0eb210e
PM		 9846 }
9847
9848 if (num == TARGET_NR_capset) {
9849 for (i = 0; i < data_items; i++) {
9850 data[i].effective = tswap32(target_data[i].effective);
9851 data[i].permitted = tswap32(target_data[i].permitted);
9852 data[i].inheritable = tswap32(target_data[i].inheritable);
9853 }
9854 }
9855
9856 dataptr = data;
9857 }
9858
9859 if (num == TARGET_NR_capget) {
9860 ret = get_errno(capget(&header, dataptr));
9861 } else {
9862 ret = get_errno(capset(&header, dataptr));
9863 }
9864
9865 /* The kernel always updates version for both capget and capset */
9866 target_header->version = tswap32(header.version);
9867 unlock_user_struct(target_header, arg1, 1);
9868
9869 if (arg2) {
9870 if (num == TARGET_NR_capget) {
9871 for (i = 0; i < data_items; i++) {
9872 target_data[i].effective = tswap32(data[i].effective);
9873 target_data[i].permitted = tswap32(data[i].permitted);
9874 target_data[i].inheritable = tswap32(data[i].inheritable);
9875 }
9876 unlock_user(target_data, arg2, target_datalen);
9877 } else {
9878 unlock_user(target_data, arg2, 0);
9879 }
9880 }
72eb7ea8 9881 return ret;
e0eb210e 9882 }
31e31b8a 9883 case TARGET_NR_sigaltstack:
72eb7ea8
RH		 9884 return do_sigaltstack(arg1, arg2,
9885 get_sp_from_cpustate((CPUArchState *)cpu_env));
a8fd1aba
PM		 9886
9887#ifdef CONFIG_SENDFILE
4f7f8924 9888#ifdef TARGET_NR_sendfile
a8fd1aba
PM		 9889 case TARGET_NR_sendfile:
9890 {
9891 off_t *offp = NULL;
9892 off_t off;
9893 if (arg3) {
9894 ret = get_user_sal(off, arg3);
9895 if (is_error(ret)) {
72eb7ea8 9896 return ret;
a8fd1aba
PM		 9897 }
9898 offp = &off;
9899 }
9900 ret = get_errno(sendfile(arg1, arg2, offp, arg4));
9901 if (!is_error(ret) && arg3) {
9902 abi_long ret2 = put_user_sal(off, arg3);
9903 if (is_error(ret2)) {
9904 ret = ret2;
9905 }
9906 }
72eb7ea8 9907 return ret;
a8fd1aba 9908 }
4f7f8924 9909#endif
a8fd1aba
PM		 9910#ifdef TARGET_NR_sendfile64
9911 case TARGET_NR_sendfile64:
9912 {
9913 off_t *offp = NULL;
9914 off_t off;
9915 if (arg3) {
9916 ret = get_user_s64(off, arg3);
9917 if (is_error(ret)) {
72eb7ea8 9918 return ret;
a8fd1aba
PM		 9919 }
9920 offp = &off;
9921 }
9922 ret = get_errno(sendfile(arg1, arg2, offp, arg4));
9923 if (!is_error(ret) && arg3) {
9924 abi_long ret2 = put_user_s64(off, arg3);
9925 if (is_error(ret2)) {
9926 ret = ret2;
9927 }
9928 }
72eb7ea8 9929 return ret;
a8fd1aba
PM		 9930 }
9931#endif
ebc05488 9932#endif
048f6b4d 9933#ifdef TARGET_NR_vfork
31e31b8a 9934 case TARGET_NR_vfork:
72eb7ea8
RH		 9935 return get_errno(do_fork(cpu_env,
9936 CLONE_VFORK | CLONE_VM | TARGET_SIGCHLD,
9937 0, 0, 0, 0));
048f6b4d 9938#endif
ebc05488 9939#ifdef TARGET_NR_ugetrlimit
31e31b8a 9940 case TARGET_NR_ugetrlimit:
728584be
FB		 9941 {
9942 struct rlimit rlim;
e22b7015
WT		 9943 int resource = target_to_host_resource(arg1);
9944 ret = get_errno(getrlimit(resource, &rlim));
728584be 9945 if (!is_error(ret)) {
53a5960a 9946 struct target_rlimit *target_rlim;
579a97f7 9947 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
2852aafd 9948 return -TARGET_EFAULT;
81bbe906
TY		 9949 target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
9950 target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
53a5960a 9951 unlock_user_struct(target_rlim, arg2, 1);
728584be 9952 }
72eb7ea8 9953 return ret;
728584be 9954 }
ebc05488 9955#endif
a315a145 9956#ifdef TARGET_NR_truncate64
31e31b8a 9957 case TARGET_NR_truncate64:
579a97f7 9958 if (!(p = lock_user_string(arg1)))
2852aafd 9959 return -TARGET_EFAULT;
53a5960a
PB		 9960 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4);
9961 unlock_user(p, arg1, 0);
72eb7ea8 9962 return ret;
a315a145
FB		 9963#endif
9964#ifdef TARGET_NR_ftruncate64
31e31b8a 9965 case TARGET_NR_ftruncate64:
72eb7ea8 9966 return target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);
a315a145
FB		 9967#endif
9968#ifdef TARGET_NR_stat64
31e31b8a 9969 case TARGET_NR_stat64:
2852aafd
RH		 9970 if (!(p = lock_user_string(arg1))) {
9971 return -TARGET_EFAULT;
9972 }
53a5960a
PB		 9973 ret = get_errno(stat(path(p), &st));
9974 unlock_user(p, arg1, 0);
6a24a778
AZ		 9975 if (!is_error(ret))
9976 ret = host_to_target_stat64(cpu_env, arg2, &st);
72eb7ea8 9977 return ret;
a315a145
FB		 9978#endif
9979#ifdef TARGET_NR_lstat64
31e31b8a 9980 case TARGET_NR_lstat64:
2852aafd
RH		 9981 if (!(p = lock_user_string(arg1))) {
9982 return -TARGET_EFAULT;
9983 }
53a5960a
PB		 9984 ret = get_errno(lstat(path(p), &st));
9985 unlock_user(p, arg1, 0);
6a24a778
AZ		 9986 if (!is_error(ret))
9987 ret = host_to_target_stat64(cpu_env, arg2, &st);
72eb7ea8 9988 return ret;
a315a145
FB		 9989#endif
9990#ifdef TARGET_NR_fstat64
31e31b8a 9991 case TARGET_NR_fstat64:
6a24a778
AZ		 9992 ret = get_errno(fstat(arg1, &st));
9993 if (!is_error(ret))
9994 ret = host_to_target_stat64(cpu_env, arg2, &st);
72eb7ea8 9995 return ret;
ce4defa0 9996#endif
c0d472b1 9997#if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat))
9d33b76b 9998#ifdef TARGET_NR_fstatat64
6a24a778 9999 case TARGET_NR_fstatat64:
9d33b76b
AJ		 10000#endif
10001#ifdef TARGET_NR_newfstatat
10002 case TARGET_NR_newfstatat:
10003#endif
2852aafd
RH		 10004 if (!(p = lock_user_string(arg2))) {
10005 return -TARGET_EFAULT;
10006 }
c0d472b1 10007 ret = get_errno(fstatat(arg1, path(p), &st, arg4));
2852aafd 10008 unlock_user(p, arg2, 0);
6a24a778
AZ		 10009 if (!is_error(ret))
10010 ret = host_to_target_stat64(cpu_env, arg3, &st);
72eb7ea8 10011 return ret;
a315a145 10012#endif
704eff6c 10013#ifdef TARGET_NR_lchown
67867308 10014 case TARGET_NR_lchown:
579a97f7 10015 if (!(p = lock_user_string(arg1)))
2852aafd 10016 return -TARGET_EFAULT;
53a5960a
PB		 10017 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));
10018 unlock_user(p, arg1, 0);
72eb7ea8 10019 return ret;
704eff6c 10020#endif
0c866a7e 10021#ifdef TARGET_NR_getuid
67867308 10022 case TARGET_NR_getuid:
72eb7ea8 10023 return get_errno(high2lowuid(getuid()));
0c866a7e
RV		 10024#endif
10025#ifdef TARGET_NR_getgid
67867308 10026 case TARGET_NR_getgid:
72eb7ea8 10027 return get_errno(high2lowgid(getgid()));
0c866a7e
RV		 10028#endif
10029#ifdef TARGET_NR_geteuid
67867308 10030 case TARGET_NR_geteuid:
72eb7ea8 10031 return get_errno(high2lowuid(geteuid()));
0c866a7e
RV		 10032#endif
10033#ifdef TARGET_NR_getegid
67867308 10034 case TARGET_NR_getegid:
72eb7ea8 10035 return get_errno(high2lowgid(getegid()));
0c866a7e 10036#endif
67867308 10037 case TARGET_NR_setreuid:
72eb7ea8 10038 return get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
67867308 10039 case TARGET_NR_setregid:
72eb7ea8 10040 return get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
67867308
FB		 10041 case TARGET_NR_getgroups:
10042 {
10043 int gidsetsize = arg1;
0c866a7e 10044 target_id *target_grouplist;
67867308
FB		 10045 gid_t *grouplist;
10046 int i;
10047
10048 grouplist = alloca(gidsetsize * sizeof(gid_t));
10049 ret = get_errno(getgroups(gidsetsize, grouplist));
cb3bc233 10050 if (gidsetsize == 0)
72eb7ea8 10051 return ret;
67867308 10052 if (!is_error(ret)) {
03903ffc 10053 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * sizeof(target_id), 0);
579a97f7 10054 if (!target_grouplist)
2852aafd 10055 return -TARGET_EFAULT;
a2155fcc 10056 for(i = 0;i < ret; i++)
0c866a7e 10057 target_grouplist[i] = tswapid(high2lowgid(grouplist[i]));
03903ffc 10058 unlock_user(target_grouplist, arg2, gidsetsize * sizeof(target_id));
67867308
FB		 10059 }
10060 }
72eb7ea8 10061 return ret;
67867308
FB		 10062 case TARGET_NR_setgroups:
10063 {
10064 int gidsetsize = arg1;
0c866a7e 10065 target_id *target_grouplist;
f2b79ce9 10066 gid_t *grouplist = NULL;
67867308 10067 int i;
f2b79ce9
DA		 10068 if (gidsetsize) {
10069 grouplist = alloca(gidsetsize * sizeof(gid_t));
03903ffc 10070 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * sizeof(target_id), 1);
f2b79ce9 10071 if (!target_grouplist) {
259841c1 10072 return -TARGET_EFAULT;
f2b79ce9
DA		 10073 }
10074 for (i = 0; i < gidsetsize; i++) {
10075 grouplist[i] = low2highgid(tswapid(target_grouplist[i]));
10076 }
10077 unlock_user(target_grouplist, arg2, 0);
579a97f7 10078 }
72eb7ea8 10079 return get_errno(setgroups(gidsetsize, grouplist));
67867308 10080 }
67867308 10081 case TARGET_NR_fchown:
72eb7ea8 10082 return get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
c0d472b1 10083#if defined(TARGET_NR_fchownat)
ccfa72b7 10084 case TARGET_NR_fchownat:
579a97f7 10085 if (!(p = lock_user_string(arg2)))
2852aafd 10086 return -TARGET_EFAULT;
c0d472b1
PM		 10087 ret = get_errno(fchownat(arg1, p, low2highuid(arg3),
10088 low2highgid(arg4), arg5));
579a97f7 10089 unlock_user(p, arg2, 0);
72eb7ea8 10090 return ret;
ccfa72b7 10091#endif
67867308
FB		 10092#ifdef TARGET_NR_setresuid
10093 case TARGET_NR_setresuid:
72eb7ea8
RH		 10094 return get_errno(sys_setresuid(low2highuid(arg1),
10095 low2highuid(arg2),
10096 low2highuid(arg3)));
67867308
FB		 10097#endif
10098#ifdef TARGET_NR_getresuid
10099 case TARGET_NR_getresuid:
10100 {
53a5960a 10101 uid_t ruid, euid, suid;
67867308
FB		 10102 ret = get_errno(getresuid(&ruid, &euid, &suid));
10103 if (!is_error(ret)) {
76ca310a
PM		 10104 if (put_user_id(high2lowuid(ruid), arg1)
10105 || put_user_id(high2lowuid(euid), arg2)
10106 || put_user_id(high2lowuid(suid), arg3))
2852aafd 10107 return -TARGET_EFAULT;
67867308
FB		 10108 }
10109 }
72eb7ea8 10110 return ret;
67867308
FB		 10111#endif
10112#ifdef TARGET_NR_getresgid
10113 case TARGET_NR_setresgid:
72eb7ea8
RH		 10114 return get_errno(sys_setresgid(low2highgid(arg1),
10115 low2highgid(arg2),
10116 low2highgid(arg3)));
67867308
FB		 10117#endif
10118#ifdef TARGET_NR_getresgid
10119 case TARGET_NR_getresgid:
10120 {
53a5960a 10121 gid_t rgid, egid, sgid;
67867308
FB		 10122 ret = get_errno(getresgid(&rgid, &egid, &sgid));
10123 if (!is_error(ret)) {
76ca310a
PM		 10124 if (put_user_id(high2lowgid(rgid), arg1)
10125 || put_user_id(high2lowgid(egid), arg2)
10126 || put_user_id(high2lowgid(sgid), arg3))
2852aafd 10127 return -TARGET_EFAULT;
67867308
FB		 10128 }
10129 }
72eb7ea8 10130 return ret;
67867308 10131#endif
704eff6c 10132#ifdef TARGET_NR_chown
67867308 10133 case TARGET_NR_chown:
579a97f7 10134 if (!(p = lock_user_string(arg1)))
2852aafd 10135 return -TARGET_EFAULT;
53a5960a
PB		 10136 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));
10137 unlock_user(p, arg1, 0);
72eb7ea8 10138 return ret;
704eff6c 10139#endif
67867308 10140 case TARGET_NR_setuid:
72eb7ea8 10141 return get_errno(sys_setuid(low2highuid(arg1)));
67867308 10142 case TARGET_NR_setgid:
72eb7ea8 10143 return get_errno(sys_setgid(low2highgid(arg1)));
67867308 10144 case TARGET_NR_setfsuid:
72eb7ea8 10145 return get_errno(setfsuid(arg1));
67867308 10146 case TARGET_NR_setfsgid:
72eb7ea8 10147 return get_errno(setfsgid(arg1));
67867308 10148
a315a145 10149#ifdef TARGET_NR_lchown32
31e31b8a 10150 case TARGET_NR_lchown32:
579a97f7 10151 if (!(p = lock_user_string(arg1)))
2852aafd 10152 return -TARGET_EFAULT;
53a5960a
PB		 10153 ret = get_errno(lchown(p, arg2, arg3));
10154 unlock_user(p, arg1, 0);
72eb7ea8 10155 return ret;
a315a145
FB		 10156#endif
10157#ifdef TARGET_NR_getuid32
31e31b8a 10158 case TARGET_NR_getuid32:
72eb7ea8 10159 return get_errno(getuid());
a315a145 10160#endif
64b4d28c
AJ		 10161
10162#if defined(TARGET_NR_getxuid) && defined(TARGET_ALPHA)
10163 /* Alpha specific */
10164 case TARGET_NR_getxuid:
ba0e276d
RH		 10165 {
10166 uid_t euid;
10167 euid=geteuid();
10168 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=euid;
10169 }
72eb7ea8 10170 return get_errno(getuid());
64b4d28c
AJ		 10171#endif
10172#if defined(TARGET_NR_getxgid) && defined(TARGET_ALPHA)
10173 /* Alpha specific */
10174 case TARGET_NR_getxgid:
ba0e276d
RH		 10175 {
10176 uid_t egid;
10177 egid=getegid();
10178 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=egid;
10179 }
72eb7ea8 10180 return get_errno(getgid());
64b4d28c 10181#endif
ba0e276d
RH		 10182#if defined(TARGET_NR_osf_getsysinfo) && defined(TARGET_ALPHA)
10183 /* Alpha specific */
10184 case TARGET_NR_osf_getsysinfo:
10185 ret = -TARGET_EOPNOTSUPP;
10186 switch (arg1) {
10187 case TARGET_GSI_IEEE_FP_CONTROL:
10188 {
10189 uint64_t swcr, fpcr = cpu_alpha_load_fpcr (cpu_env);
10190
10191 /* Copied from linux ieee_fpcr_to_swcr. */
10192 swcr = (fpcr >> 35) & SWCR_STATUS_MASK;
10193 swcr |= (fpcr >> 36) & SWCR_MAP_DMZ;
10194 swcr |= (~fpcr >> 48) & (SWCR_TRAP_ENABLE_INV
10195 | SWCR_TRAP_ENABLE_DZE
10196 | SWCR_TRAP_ENABLE_OVF);
10197 swcr |= (~fpcr >> 57) & (SWCR_TRAP_ENABLE_UNF
10198 | SWCR_TRAP_ENABLE_INE);
10199 swcr |= (fpcr >> 47) & SWCR_MAP_UMZ;
10200 swcr |= (~fpcr >> 41) & SWCR_TRAP_ENABLE_DNO;
10201
10202 if (put_user_u64 (swcr, arg2))
2852aafd 10203 return -TARGET_EFAULT;
ba0e276d
RH		 10204 ret = 0;
10205 }
10206 break;
10207
10208 /* case GSI_IEEE_STATE_AT_SIGNAL:
10209 -- Not implemented in linux kernel.
10210 case GSI_UACPROC:
10211 -- Retrieves current unaligned access state; not much used.
10212 case GSI_PROC_TYPE:
10213 -- Retrieves implver information; surely not used.
10214 case GSI_GET_HWRPB:
10215 -- Grabs a copy of the HWRPB; surely not used.
10216 */
10217 }
72eb7ea8 10218 return ret;
ba0e276d
RH		 10219#endif
10220#if defined(TARGET_NR_osf_setsysinfo) && defined(TARGET_ALPHA)
10221 /* Alpha specific */
10222 case TARGET_NR_osf_setsysinfo:
10223 ret = -TARGET_EOPNOTSUPP;
10224 switch (arg1) {
10225 case TARGET_SSI_IEEE_FP_CONTROL:
ba0e276d
RH		 10226 {
10227 uint64_t swcr, fpcr, orig_fpcr;
10228
6e06d515 10229 if (get_user_u64 (swcr, arg2)) {
2852aafd 10230 return -TARGET_EFAULT;
6e06d515
RH		 10231 }
10232 orig_fpcr = cpu_alpha_load_fpcr(cpu_env);
ba0e276d
RH		 10233 fpcr = orig_fpcr & FPCR_DYN_MASK;
10234
10235 /* Copied from linux ieee_swcr_to_fpcr. */
10236 fpcr |= (swcr & SWCR_STATUS_MASK) << 35;
10237 fpcr |= (swcr & SWCR_MAP_DMZ) << 36;
10238 fpcr |= (~swcr & (SWCR_TRAP_ENABLE_INV
10239 | SWCR_TRAP_ENABLE_DZE
10240 | SWCR_TRAP_ENABLE_OVF)) << 48;
10241 fpcr |= (~swcr & (SWCR_TRAP_ENABLE_UNF
10242 | SWCR_TRAP_ENABLE_INE)) << 57;
10243 fpcr |= (swcr & SWCR_MAP_UMZ ? FPCR_UNDZ | FPCR_UNFD : 0);
10244 fpcr |= (~swcr & SWCR_TRAP_ENABLE_DNO) << 41;
10245
6e06d515 10246 cpu_alpha_store_fpcr(cpu_env, fpcr);
ba0e276d 10247 ret = 0;
6e06d515
RH		 10248 }
10249 break;
10250
10251 case TARGET_SSI_IEEE_RAISE_EXCEPTION:
10252 {
10253 uint64_t exc, fpcr, orig_fpcr;
10254 int si_code;
10255
10256 if (get_user_u64(exc, arg2)) {
2852aafd 10257 return -TARGET_EFAULT;
6e06d515 10258 }
ba0e276d 10259
6e06d515 10260 orig_fpcr = cpu_alpha_load_fpcr(cpu_env);
ba0e276d 10261
6e06d515
RH		 10262 /* We only add to the exception status here. */
10263 fpcr = orig_fpcr | ((exc & SWCR_STATUS_MASK) << 35);
10264
10265 cpu_alpha_store_fpcr(cpu_env, fpcr);
10266 ret = 0;
10267
10268 /* Old exceptions are not signaled. */
10269 fpcr &= ~(orig_fpcr & FPCR_STATUS_MASK);
10270
10271 /* If any exceptions set by this call,
10272 and are unmasked, send a signal. */
10273 si_code = 0;
10274 if ((fpcr & (FPCR_INE | FPCR_INED)) == FPCR_INE) {
10275 si_code = TARGET_FPE_FLTRES;
10276 }
10277 if ((fpcr & (FPCR_UNF | FPCR_UNFD)) == FPCR_UNF) {
10278 si_code = TARGET_FPE_FLTUND;
10279 }
10280 if ((fpcr & (FPCR_OVF | FPCR_OVFD)) == FPCR_OVF) {
10281 si_code = TARGET_FPE_FLTOVF;
10282 }
10283 if ((fpcr & (FPCR_DZE | FPCR_DZED)) == FPCR_DZE) {
10284 si_code = TARGET_FPE_FLTDIV;
10285 }
10286 if ((fpcr & (FPCR_INV | FPCR_INVD)) == FPCR_INV) {
10287 si_code = TARGET_FPE_FLTINV;
10288 }
10289 if (si_code != 0) {
10290 target_siginfo_t info;
10291 info.si_signo = SIGFPE;
10292 info.si_errno = 0;
10293 info.si_code = si_code;
10294 info._sifields._sigfault._addr
10295 = ((CPUArchState *)cpu_env)->pc;
9d2803f7
PM		 10296 queue_signal((CPUArchState *)cpu_env, info.si_signo,
10297 QEMU_SI_FAULT, &info);
ba0e276d
RH		 10298 }
10299 }
10300 break;
10301
10302 /* case SSI_NVPAIRS:
10303 -- Used with SSIN_UACPROC to enable unaligned accesses.
10304 case SSI_IEEE_STATE_AT_SIGNAL:
10305 case SSI_IEEE_IGNORE_STATE_AT_SIGNAL:
10306 -- Not implemented in linux kernel
10307 */
10308 }
72eb7ea8 10309 return ret;
ba0e276d
RH		 10310#endif
10311#ifdef TARGET_NR_osf_sigprocmask
10312 /* Alpha specific. */
10313 case TARGET_NR_osf_sigprocmask:
10314 {
10315 abi_ulong mask;
bc088ba1 10316 int how;
ba0e276d
RH		 10317 sigset_t set, oldset;
10318
10319 switch(arg1) {
10320 case TARGET_SIG_BLOCK:
10321 how = SIG_BLOCK;
10322 break;
10323 case TARGET_SIG_UNBLOCK:
10324 how = SIG_UNBLOCK;
10325 break;
10326 case TARGET_SIG_SETMASK:
10327 how = SIG_SETMASK;
10328 break;
10329 default:
259841c1 10330 return -TARGET_EINVAL;
ba0e276d
RH		 10331 }
10332 mask = arg2;
10333 target_to_host_old_sigset(&set, &mask);
3d3efba0
PM		 10334 ret = do_sigprocmask(how, &set, &oldset);
10335 if (!ret) {
10336 host_to_target_old_sigset(&mask, &oldset);
10337 ret = mask;
10338 }
ba0e276d 10339 }
72eb7ea8 10340 return ret;
ba0e276d 10341#endif
64b4d28c 10342
a315a145 10343#ifdef TARGET_NR_getgid32
31e31b8a 10344 case TARGET_NR_getgid32:
72eb7ea8 10345 return get_errno(getgid());
a315a145
FB		 10346#endif
10347#ifdef TARGET_NR_geteuid32
31e31b8a 10348 case TARGET_NR_geteuid32:
72eb7ea8 10349 return get_errno(geteuid());
a315a145
FB		 10350#endif
10351#ifdef TARGET_NR_getegid32
31e31b8a 10352 case TARGET_NR_getegid32:
72eb7ea8 10353 return get_errno(getegid());
a315a145
FB		 10354#endif
10355#ifdef TARGET_NR_setreuid32
31e31b8a 10356 case TARGET_NR_setreuid32:
72eb7ea8 10357 return get_errno(setreuid(arg1, arg2));
a315a145
FB		 10358#endif
10359#ifdef TARGET_NR_setregid32
31e31b8a 10360 case TARGET_NR_setregid32:
72eb7ea8 10361 return get_errno(setregid(arg1, arg2));
a315a145
FB		 10362#endif
10363#ifdef TARGET_NR_getgroups32
31e31b8a 10364 case TARGET_NR_getgroups32:
99c475ab
FB		 10365 {
10366 int gidsetsize = arg1;
53a5960a 10367 uint32_t *target_grouplist;
99c475ab
FB		 10368 gid_t *grouplist;
10369 int i;
10370
10371 grouplist = alloca(gidsetsize * sizeof(gid_t));
10372 ret = get_errno(getgroups(gidsetsize, grouplist));
cb3bc233 10373 if (gidsetsize == 0)
72eb7ea8 10374 return ret;
99c475ab 10375 if (!is_error(ret)) {
579a97f7
FB		 10376 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 4, 0);
10377 if (!target_grouplist) {
259841c1 10378 return -TARGET_EFAULT;
579a97f7 10379 }
a2155fcc 10380 for(i = 0;i < ret; i++)
53a5960a
PB		 10381 target_grouplist[i] = tswap32(grouplist[i]);
10382 unlock_user(target_grouplist, arg2, gidsetsize * 4);
99c475ab
FB		 10383 }
10384 }
72eb7ea8 10385 return ret;
a315a145
FB		 10386#endif
10387#ifdef TARGET_NR_setgroups32
31e31b8a 10388 case TARGET_NR_setgroups32:
99c475ab
FB		 10389 {
10390 int gidsetsize = arg1;
53a5960a 10391 uint32_t *target_grouplist;
99c475ab
FB		 10392 gid_t *grouplist;
10393 int i;
3b46e624 10394
99c475ab 10395 grouplist = alloca(gidsetsize * sizeof(gid_t));
579a97f7
FB		 10396 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 4, 1);
10397 if (!target_grouplist) {
259841c1 10398 return -TARGET_EFAULT;
579a97f7 10399 }
99c475ab 10400 for(i = 0;i < gidsetsize; i++)
53a5960a
PB		 10401 grouplist[i] = tswap32(target_grouplist[i]);
10402 unlock_user(target_grouplist, arg2, 0);
72eb7ea8 10403 return get_errno(setgroups(gidsetsize, grouplist));
99c475ab 10404 }
a315a145
FB		 10405#endif
10406#ifdef TARGET_NR_fchown32
31e31b8a 10407 case TARGET_NR_fchown32:
72eb7ea8 10408 return get_errno(fchown(arg1, arg2, arg3));
a315a145
FB		 10409#endif
10410#ifdef TARGET_NR_setresuid32
31e31b8a 10411 case TARGET_NR_setresuid32:
72eb7ea8 10412 return get_errno(sys_setresuid(arg1, arg2, arg3));
a315a145
FB		 10413#endif
10414#ifdef TARGET_NR_getresuid32
31e31b8a 10415 case TARGET_NR_getresuid32:
b03c60f3 10416 {
53a5960a 10417 uid_t ruid, euid, suid;
b03c60f3
FB		 10418 ret = get_errno(getresuid(&ruid, &euid, &suid));
10419 if (!is_error(ret)) {
2f619698
FB		 10420 if (put_user_u32(ruid, arg1)
10421 || put_user_u32(euid, arg2)
10422 || put_user_u32(suid, arg3))
2852aafd 10423 return -TARGET_EFAULT;
b03c60f3
FB		 10424 }
10425 }
72eb7ea8 10426 return ret;
a315a145
FB		 10427#endif
10428#ifdef TARGET_NR_setresgid32
31e31b8a 10429 case TARGET_NR_setresgid32:
72eb7ea8 10430 return get_errno(sys_setresgid(arg1, arg2, arg3));
a315a145
FB		 10431#endif
10432#ifdef TARGET_NR_getresgid32
31e31b8a 10433 case TARGET_NR_getresgid32:
b03c60f3 10434 {
53a5960a 10435 gid_t rgid, egid, sgid;
b03c60f3
FB		 10436 ret = get_errno(getresgid(&rgid, &egid, &sgid));
10437 if (!is_error(ret)) {
2f619698
FB		 10438 if (put_user_u32(rgid, arg1)
10439 || put_user_u32(egid, arg2)
10440 || put_user_u32(sgid, arg3))
2852aafd 10441 return -TARGET_EFAULT;
b03c60f3
FB		 10442 }
10443 }
72eb7ea8 10444 return ret;
a315a145
FB		 10445#endif
10446#ifdef TARGET_NR_chown32
31e31b8a 10447 case TARGET_NR_chown32:
579a97f7 10448 if (!(p = lock_user_string(arg1)))
2852aafd 10449 return -TARGET_EFAULT;
53a5960a
PB		 10450 ret = get_errno(chown(p, arg2, arg3));
10451 unlock_user(p, arg1, 0);
72eb7ea8 10452 return ret;
a315a145
FB		 10453#endif
10454#ifdef TARGET_NR_setuid32
31e31b8a 10455 case TARGET_NR_setuid32:
72eb7ea8 10456 return get_errno(sys_setuid(arg1));
a315a145
FB		 10457#endif
10458#ifdef TARGET_NR_setgid32
31e31b8a 10459 case TARGET_NR_setgid32:
72eb7ea8 10460 return get_errno(sys_setgid(arg1));
a315a145
FB		 10461#endif
10462#ifdef TARGET_NR_setfsuid32
31e31b8a 10463 case TARGET_NR_setfsuid32:
72eb7ea8 10464 return get_errno(setfsuid(arg1));
a315a145
FB		 10465#endif
10466#ifdef TARGET_NR_setfsgid32
31e31b8a 10467 case TARGET_NR_setfsgid32:
72eb7ea8 10468 return get_errno(setfsgid(arg1));
a315a145 10469#endif
ffa65c3b 10470#ifdef TARGET_NR_mincore
31e31b8a 10471 case TARGET_NR_mincore:
04bb9ace 10472 {
259841c1 10473 void *a = lock_user(VERIFY_READ, arg1, arg2, 0);
98a3331a 10474 if (!a) {
259841c1 10475 return -TARGET_ENOMEM;
98a3331a 10476 }
98a3331a
FSM		 10477 p = lock_user_string(arg3);
10478 if (!p) {
259841c1
RH		 10479 ret = -TARGET_EFAULT;
10480 } else {
10481 ret = get_errno(mincore(a, arg2, p));
10482 unlock_user(p, arg3, ret);
98a3331a 10483 }
04bb9ace
AJ		 10484 unlock_user(a, arg1, 0);
10485 }
72eb7ea8 10486 return ret;
ffa65c3b 10487#endif
408321b6
AJ		 10488#ifdef TARGET_NR_arm_fadvise64_64
10489 case TARGET_NR_arm_fadvise64_64:
e0156a9d
PM		 10490 /* arm_fadvise64_64 looks like fadvise64_64 but
10491 * with different argument order: fd, advice, offset, len
10492 * rather than the usual fd, offset, len, advice.
10493 * Note that offset and len are both 64-bit so appear as
10494 * pairs of 32-bit registers.
10495 */
10496 ret = posix_fadvise(arg1, target_offset64(arg3, arg4),
10497 target_offset64(arg5, arg6), arg2);
72eb7ea8 10498 return -host_to_target_errno(ret);
408321b6 10499#endif
badd3cd8
PM		 10500
10501#if TARGET_ABI_BITS == 32
10502
10503#ifdef TARGET_NR_fadvise64_64
10504 case TARGET_NR_fadvise64_64:
64a563dd 10505#if defined(TARGET_PPC) || defined(TARGET_XTENSA)
43046b5a
LV		 10506 /* 6 args: fd, advice, offset (high, low), len (high, low) */
10507 ret = arg2;
10508 arg2 = arg3;
10509 arg3 = arg4;
10510 arg4 = arg5;
10511 arg5 = arg6;
10512 arg6 = ret;
10513#else
badd3cd8 10514 /* 6 args: fd, offset (high, low), len (high, low), advice */
8bf8e9df 10515 if (regpairs_aligned(cpu_env, num)) {
badd3cd8
PM		 10516 /* offset is in (3,4), len in (5,6) and advice in 7 */
10517 arg2 = arg3;
10518 arg3 = arg4;
10519 arg4 = arg5;
10520 arg5 = arg6;
10521 arg6 = arg7;
10522 }
43046b5a 10523#endif
72eb7ea8
RH		 10524 ret = posix_fadvise(arg1, target_offset64(arg2, arg3),
10525 target_offset64(arg4, arg5), arg6);
10526 return -host_to_target_errno(ret);
badd3cd8
PM		 10527#endif
10528
10529#ifdef TARGET_NR_fadvise64
10530 case TARGET_NR_fadvise64:
10531 /* 5 args: fd, offset (high, low), len, advice */
8bf8e9df 10532 if (regpairs_aligned(cpu_env, num)) {
badd3cd8
PM		 10533 /* offset is in (3,4), len in 5 and advice in 6 */
10534 arg2 = arg3;
10535 arg3 = arg4;
10536 arg4 = arg5;
10537 arg5 = arg6;
10538 }
72eb7ea8
RH		 10539 ret = posix_fadvise(arg1, target_offset64(arg2, arg3), arg4, arg5);
10540 return -host_to_target_errno(ret);
408321b6 10541#endif
badd3cd8
PM		 10542
10543#else /* not a 32-bit ABI */
e0156a9d 10544#if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_fadvise64)
408321b6
AJ		 10545#ifdef TARGET_NR_fadvise64_64
10546 case TARGET_NR_fadvise64_64:
10547#endif
e72d2cc7
UH		 10548#ifdef TARGET_NR_fadvise64
10549 case TARGET_NR_fadvise64:
10550#endif
10551#ifdef TARGET_S390X
10552 switch (arg4) {
10553 case 4: arg4 = POSIX_FADV_NOREUSE + 1; break; /* make sure it's an invalid value */
10554 case 5: arg4 = POSIX_FADV_NOREUSE + 2; break; /* ditto */
10555 case 6: arg4 = POSIX_FADV_DONTNEED; break;
10556 case 7: arg4 = POSIX_FADV_NOREUSE; break;
10557 default: break;
10558 }
10559#endif
72eb7ea8 10560 return -host_to_target_errno(posix_fadvise(arg1, arg2, arg3, arg4));
408321b6 10561#endif
badd3cd8
PM		 10562#endif /* end of 64-bit ABI fadvise handling */
10563
ffa65c3b 10564#ifdef TARGET_NR_madvise
31e31b8a 10565 case TARGET_NR_madvise:
24836689 10566 /* A straight passthrough may not be safe because qemu sometimes
d2d6b857 10567 turns private file-backed mappings into anonymous mappings.
24836689
PB		 10568 This will break MADV_DONTNEED.
10569 This is a hint, so ignoring and returning success is ok. */
72eb7ea8 10570 return 0;
ffa65c3b 10571#endif
992f48a0 10572#if TARGET_ABI_BITS == 32
31e31b8a 10573 case TARGET_NR_fcntl64:
77e4672d 10574 {
b1e341eb 10575 int cmd;
77e4672d 10576 struct flock64 fl;
213d3e9e
PM		 10577 from_flock64_fn *copyfrom = copy_from_user_flock64;
10578 to_flock64_fn *copyto = copy_to_user_flock64;
10579
ce4defa0 10580#ifdef TARGET_ARM
7f254c5c
LV		 10581 if (!((CPUARMState *)cpu_env)->eabi) {
10582 copyfrom = copy_from_user_oabi_flock64;
10583 copyto = copy_to_user_oabi_flock64;
213d3e9e 10584 }
ce4defa0 10585#endif
77e4672d 10586
5f106811 10587 cmd = target_to_host_fcntl_cmd(arg2);
31b63193 10588 if (cmd == -TARGET_EINVAL) {
72eb7ea8 10589 return cmd;
31b63193 10590 }
b1e341eb 10591
60cd49d5 10592 switch(arg2) {
b1e341eb 10593 case TARGET_F_GETLK64:
213d3e9e
PM		 10594 ret = copyfrom(&fl, arg3);
10595 if (ret) {
10596 break;
5813427b 10597 }
af8ab2bf 10598 ret = get_errno(safe_fcntl(arg1, cmd, &fl));
213d3e9e
PM		 10599 if (ret == 0) {
10600 ret = copyto(arg3, &fl);
10601 }
77e4672d
FB		 10602 break;
10603
b1e341eb
TS		 10604 case TARGET_F_SETLK64:
10605 case TARGET_F_SETLKW64:
213d3e9e
PM		 10606 ret = copyfrom(&fl, arg3);
10607 if (ret) {
10608 break;
ce4defa0 10609 }
435da5e7 10610 ret = get_errno(safe_fcntl(arg1, cmd, &fl));
77e4672d 10611 break;
60cd49d5 10612 default:
5f106811 10613 ret = do_fcntl(arg1, arg2, arg3);
60cd49d5
FB		 10614 break;
10615 }
72eb7ea8 10616 return ret;
77e4672d 10617 }
60cd49d5 10618#endif
7d600c80
TS		 10619#ifdef TARGET_NR_cacheflush
10620 case TARGET_NR_cacheflush:
10621 /* self-modifying code is handled automatically, so nothing needed */
72eb7ea8 10622 return 0;
7d600c80 10623#endif
c573ff67
FB		 10624#ifdef TARGET_NR_getpagesize
10625 case TARGET_NR_getpagesize:
72eb7ea8 10626 return TARGET_PAGE_SIZE;
ebc05488 10627#endif
31e31b8a 10628 case TARGET_NR_gettid:
72eb7ea8 10629 return get_errno(gettid());
e5febef5 10630#ifdef TARGET_NR_readahead
31e31b8a 10631 case TARGET_NR_readahead:
2054ac9b 10632#if TARGET_ABI_BITS == 32
8bf8e9df 10633 if (regpairs_aligned(cpu_env, num)) {
2054ac9b
AJ		 10634 arg2 = arg3;
10635 arg3 = arg4;
10636 arg4 = arg5;
10637 }
77c6850f 10638 ret = get_errno(readahead(arg1, target_offset64(arg2, arg3) , arg4));
2054ac9b
AJ		 10639#else
10640 ret = get_errno(readahead(arg1, arg2, arg3));
10641#endif
72eb7ea8 10642 return ret;
e5febef5 10643#endif
a790ae38 10644#ifdef CONFIG_ATTR
ebc05488 10645#ifdef TARGET_NR_setxattr
31e31b8a
FB		 10646 case TARGET_NR_listxattr:
10647 case TARGET_NR_llistxattr:
fb5590f7
PM		 10648 {
10649 void *p, *b = 0;
10650 if (arg2) {
10651 b = lock_user(VERIFY_WRITE, arg2, arg3, 0);
10652 if (!b) {
72eb7ea8 10653 return -TARGET_EFAULT;
fb5590f7
PM		 10654 }
10655 }
10656 p = lock_user_string(arg1);
10657 if (p) {
10658 if (num == TARGET_NR_listxattr) {
10659 ret = get_errno(listxattr(p, b, arg3));
10660 } else {
10661 ret = get_errno(llistxattr(p, b, arg3));
10662 }
10663 } else {
10664 ret = -TARGET_EFAULT;
10665 }
10666 unlock_user(p, arg1, 0);
10667 unlock_user(b, arg2, arg3);
72eb7ea8 10668 return ret;
fb5590f7 10669 }
31e31b8a 10670 case TARGET_NR_flistxattr:
fb5590f7
PM		 10671 {
10672 void *b = 0;
10673 if (arg2) {
10674 b = lock_user(VERIFY_WRITE, arg2, arg3, 0);
10675 if (!b) {
72eb7ea8 10676 return -TARGET_EFAULT;
fb5590f7
PM		 10677 }
10678 }
10679 ret = get_errno(flistxattr(arg1, b, arg3));
10680 unlock_user(b, arg2, arg3);
72eb7ea8 10681 return ret;
fb5590f7 10682 }
a790ae38 10683 case TARGET_NR_setxattr:
30297b55 10684 case TARGET_NR_lsetxattr:
a790ae38 10685 {
e3c33ec6
PM		 10686 void *p, *n, *v = 0;
10687 if (arg3) {
10688 v = lock_user(VERIFY_READ, arg3, arg4, 1);
10689 if (!v) {
72eb7ea8 10690 return -TARGET_EFAULT;
e3c33ec6
PM		 10691 }
10692 }
a790ae38
ACH		 10693 p = lock_user_string(arg1);
10694 n = lock_user_string(arg2);
e3c33ec6 10695 if (p && n) {
30297b55
PM		 10696 if (num == TARGET_NR_setxattr) {
10697 ret = get_errno(setxattr(p, n, v, arg4, arg5));
10698 } else {
10699 ret = get_errno(lsetxattr(p, n, v, arg4, arg5));
10700 }
a790ae38
ACH		 10701 } else {
10702 ret = -TARGET_EFAULT;
10703 }
10704 unlock_user(p, arg1, 0);
10705 unlock_user(n, arg2, 0);
10706 unlock_user(v, arg3, 0);
10707 }
72eb7ea8 10708 return ret;
30297b55
PM		 10709 case TARGET_NR_fsetxattr:
10710 {
10711 void *n, *v = 0;
10712 if (arg3) {
10713 v = lock_user(VERIFY_READ, arg3, arg4, 1);
10714 if (!v) {
72eb7ea8 10715 return -TARGET_EFAULT;
30297b55
PM		 10716 }
10717 }
10718 n = lock_user_string(arg2);
10719 if (n) {
10720 ret = get_errno(fsetxattr(arg1, n, v, arg4, arg5));
10721 } else {
10722 ret = -TARGET_EFAULT;
10723 }
10724 unlock_user(n, arg2, 0);
10725 unlock_user(v, arg3, 0);
10726 }
72eb7ea8 10727 return ret;
a790ae38 10728 case TARGET_NR_getxattr:
30297b55 10729 case TARGET_NR_lgetxattr:
a790ae38 10730 {
e3c33ec6
PM		 10731 void *p, *n, *v = 0;
10732 if (arg3) {
10733 v = lock_user(VERIFY_WRITE, arg3, arg4, 0);
10734 if (!v) {
72eb7ea8 10735 return -TARGET_EFAULT;
e3c33ec6
PM		 10736 }
10737 }
a790ae38
ACH		 10738 p = lock_user_string(arg1);
10739 n = lock_user_string(arg2);
e3c33ec6 10740 if (p && n) {
30297b55
PM		 10741 if (num == TARGET_NR_getxattr) {
10742 ret = get_errno(getxattr(p, n, v, arg4));
10743 } else {
10744 ret = get_errno(lgetxattr(p, n, v, arg4));
10745 }
a790ae38
ACH		 10746 } else {
10747 ret = -TARGET_EFAULT;
10748 }
10749 unlock_user(p, arg1, 0);
10750 unlock_user(n, arg2, 0);
10751 unlock_user(v, arg3, arg4);
10752 }
72eb7ea8 10753 return ret;
30297b55
PM		 10754 case TARGET_NR_fgetxattr:
10755 {
10756 void *n, *v = 0;
10757 if (arg3) {
10758 v = lock_user(VERIFY_WRITE, arg3, arg4, 0);
10759 if (!v) {
72eb7ea8 10760 return -TARGET_EFAULT;
30297b55
PM		 10761 }
10762 }
10763 n = lock_user_string(arg2);
10764 if (n) {
10765 ret = get_errno(fgetxattr(arg1, n, v, arg4));
10766 } else {
10767 ret = -TARGET_EFAULT;
10768 }
10769 unlock_user(n, arg2, 0);
10770 unlock_user(v, arg3, arg4);
10771 }
72eb7ea8 10772 return ret;
a790ae38 10773 case TARGET_NR_removexattr:
30297b55 10774 case TARGET_NR_lremovexattr:
a790ae38
ACH		 10775 {
10776 void *p, *n;
10777 p = lock_user_string(arg1);
10778 n = lock_user_string(arg2);
10779 if (p && n) {
30297b55
PM		 10780 if (num == TARGET_NR_removexattr) {
10781 ret = get_errno(removexattr(p, n));
10782 } else {
10783 ret = get_errno(lremovexattr(p, n));
10784 }
a790ae38
ACH		 10785 } else {
10786 ret = -TARGET_EFAULT;
10787 }
10788 unlock_user(p, arg1, 0);
10789 unlock_user(n, arg2, 0);
10790 }
72eb7ea8 10791 return ret;
30297b55
PM		 10792 case TARGET_NR_fremovexattr:
10793 {
10794 void *n;
10795 n = lock_user_string(arg2);
10796 if (n) {
10797 ret = get_errno(fremovexattr(arg1, n));
10798 } else {
10799 ret = -TARGET_EFAULT;
10800 }
10801 unlock_user(n, arg2, 0);
10802 }
72eb7ea8 10803 return ret;
ebc05488 10804#endif
a790ae38 10805#endif /* CONFIG_ATTR */
ebc05488 10806#ifdef TARGET_NR_set_thread_area
5cd4393b 10807 case TARGET_NR_set_thread_area:
8d18e893 10808#if defined(TARGET_MIPS)
d279279e 10809 ((CPUMIPSState *) cpu_env)->active_tc.CP0_UserLocal = arg1;
72eb7ea8 10810 return 0;
ef96779b
EI		 10811#elif defined(TARGET_CRIS)
10812 if (arg1 & 0xff)
10813 ret = -TARGET_EINVAL;
10814 else {
10815 ((CPUCRISState *) cpu_env)->pregs[PR_PID] = arg1;
10816 ret = 0;
10817 }
72eb7ea8 10818 return ret;
8d18e893 10819#elif defined(TARGET_I386) && defined(TARGET_ABI32)
72eb7ea8 10820 return do_set_thread_area(cpu_env, arg1);
1ccd9374
PM		 10821#elif defined(TARGET_M68K)
10822 {
0429a971 10823 TaskState *ts = cpu->opaque;
1ccd9374 10824 ts->tp_value = arg1;
72eb7ea8 10825 return 0;
1ccd9374 10826 }
6f5b89a0 10827#else
10f45d98 10828 return -TARGET_ENOSYS;
6f5b89a0
TS		 10829#endif
10830#endif
10831#ifdef TARGET_NR_get_thread_area
5cd4393b 10832 case TARGET_NR_get_thread_area:
8d18e893 10833#if defined(TARGET_I386) && defined(TARGET_ABI32)
72eb7ea8 10834 return do_get_thread_area(cpu_env, arg1);
1ccd9374
PM		 10835#elif defined(TARGET_M68K)
10836 {
0429a971 10837 TaskState *ts = cpu->opaque;
72eb7ea8 10838 return ts->tp_value;
1ccd9374 10839 }
8d18e893 10840#else
10f45d98 10841 return -TARGET_ENOSYS;
48dc41eb 10842#endif
8d18e893 10843#endif
48dc41eb
FB		 10844#ifdef TARGET_NR_getdomainname
10845 case TARGET_NR_getdomainname:
10f45d98 10846 return -TARGET_ENOSYS;
ebc05488 10847#endif
6f5b89a0 10848
12e3340c
MF		 10849#ifdef TARGET_NR_clock_settime
10850 case TARGET_NR_clock_settime:
10851 {
10852 struct timespec ts;
10853
10854 ret = target_to_host_timespec(&ts, arg2);
10855 if (!is_error(ret)) {
10856 ret = get_errno(clock_settime(arg1, &ts));
10857 }
72eb7ea8 10858 return ret;
12e3340c
MF		 10859 }
10860#endif
b5906f95
TS		 10861#ifdef TARGET_NR_clock_gettime
10862 case TARGET_NR_clock_gettime:
10863 {
10864 struct timespec ts;
10865 ret = get_errno(clock_gettime(arg1, &ts));
10866 if (!is_error(ret)) {
b9f9908e 10867 ret = host_to_target_timespec(arg2, &ts);
b5906f95 10868 }
72eb7ea8 10869 return ret;
b5906f95
TS		 10870 }
10871#endif
10872#ifdef TARGET_NR_clock_getres
10873 case TARGET_NR_clock_getres:
10874 {
10875 struct timespec ts;
10876 ret = get_errno(clock_getres(arg1, &ts));
10877 if (!is_error(ret)) {
10878 host_to_target_timespec(arg2, &ts);
10879 }
72eb7ea8 10880 return ret;
b5906f95
TS		 10881 }
10882#endif
63d7651b
PB		 10883#ifdef TARGET_NR_clock_nanosleep
10884 case TARGET_NR_clock_nanosleep:
10885 {
10886 struct timespec ts;
10887 target_to_host_timespec(&ts, arg3);
9e518226
PM		 10888 ret = get_errno(safe_clock_nanosleep(arg1, arg2,
10889 &ts, arg4 ? &ts : NULL));
63d7651b
PB		 10890 if (arg4)
10891 host_to_target_timespec(arg4, &ts);
8fbe8fdf
TM		 10892
10893#if defined(TARGET_PPC)
10894 /* clock_nanosleep is odd in that it returns positive errno values.
10895 * On PPC, CR0 bit 3 should be set in such a situation. */
9e518226 10896 if (ret && ret != -TARGET_ERESTARTSYS) {
8fbe8fdf
TM		 10897 ((CPUPPCState *)cpu_env)->crf[0] |= 1;
10898 }
10899#endif
72eb7ea8 10900 return ret;
63d7651b
PB		 10901 }
10902#endif
b5906f95 10903
6f5b89a0
TS		 10904#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
10905 case TARGET_NR_set_tid_address:
72eb7ea8 10906 return get_errno(set_tid_address((int *)g2h(arg1)));
6f5b89a0
TS		 10907#endif
10908
4cae1d16 10909 case TARGET_NR_tkill:
72eb7ea8 10910 return get_errno(safe_tkill((int)arg1, target_to_host_signal(arg2)));
4cae1d16 10911
71455574 10912 case TARGET_NR_tgkill:
72eb7ea8
RH		 10913 return get_errno(safe_tgkill((int)arg1, (int)arg2,
10914 target_to_host_signal(arg3)));
71455574 10915
4f2b1fe8
TS		 10916#ifdef TARGET_NR_set_robust_list
10917 case TARGET_NR_set_robust_list:
e9a970a8
PM		 10918 case TARGET_NR_get_robust_list:
10919 /* The ABI for supporting robust futexes has userspace pass
10920 * the kernel a pointer to a linked list which is updated by
10921 * userspace after the syscall; the list is walked by the kernel
10922 * when the thread exits. Since the linked list in QEMU guest
10923 * memory isn't a valid linked list for the host and we have
10924 * no way to reliably intercept the thread-death event, we can't
10925 * support these. Silently return ENOSYS so that guest userspace
10926 * falls back to a non-robust futex implementation (which should
10927 * be OK except in the corner case of the guest crashing while
10928 * holding a mutex that is shared with another process via
10929 * shared memory).
10930 */
10f45d98 10931 return -TARGET_ENOSYS;
4f2b1fe8
TS		 10932#endif
10933
1acae9f2 10934#if defined(TARGET_NR_utimensat)
9007f0ef
TS		 10935 case TARGET_NR_utimensat:
10936 {
ebc996f3
RV		 10937 struct timespec *tsp, ts[2];
10938 if (!arg3) {
10939 tsp = NULL;
10940 } else {
10941 target_to_host_timespec(ts, arg3);
10942 target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec));
10943 tsp = ts;
10944 }
9007f0ef 10945 if (!arg2)
ebc996f3 10946 ret = get_errno(sys_utimensat(arg1, NULL, tsp, arg4));
9007f0ef 10947 else {
579a97f7 10948 if (!(p = lock_user_string(arg2))) {
259841c1 10949 return -TARGET_EFAULT;
579a97f7 10950 }
ebc996f3 10951 ret = get_errno(sys_utimensat(arg1, path(p), tsp, arg4));
579a97f7 10952 unlock_user(p, arg2, 0);
9007f0ef
TS		 10953 }
10954 }
72eb7ea8 10955 return ret;
9007f0ef 10956#endif
bd0c5661 10957 case TARGET_NR_futex:
72eb7ea8 10958 return do_futex(arg1, arg2, arg3, arg4, arg5, arg6);
dbfe4c36 10959#if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
39b59763
AJ		 10960 case TARGET_NR_inotify_init:
10961 ret = get_errno(sys_inotify_init());
b929f7e5
PMD		 10962 if (ret >= 0) {
10963 fd_trans_register(ret, &target_inotify_trans);
10964 }
72eb7ea8 10965 return ret;
39b59763 10966#endif
a1606b0b 10967#ifdef CONFIG_INOTIFY1
c05c7a73
RV		 10968#if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1)
10969 case TARGET_NR_inotify_init1:
fea243e9
LD		 10970 ret = get_errno(sys_inotify_init1(target_to_host_bitmask(arg1,
10971 fcntl_flags_tbl)));
b929f7e5
PMD		 10972 if (ret >= 0) {
10973 fd_trans_register(ret, &target_inotify_trans);
10974 }
72eb7ea8 10975 return ret;
c05c7a73 10976#endif
a1606b0b 10977#endif
dbfe4c36 10978#if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
39b59763
AJ		 10979 case TARGET_NR_inotify_add_watch:
10980 p = lock_user_string(arg2);
10981 ret = get_errno(sys_inotify_add_watch(arg1, path(p), arg3));
10982 unlock_user(p, arg2, 0);
72eb7ea8 10983 return ret;
39b59763 10984#endif
dbfe4c36 10985#if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
39b59763 10986 case TARGET_NR_inotify_rm_watch:
72eb7ea8 10987 return get_errno(sys_inotify_rm_watch(arg1, arg2));
39b59763 10988#endif
9007f0ef 10989
8ec9cf89 10990#if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
24e1003a
AJ		 10991 case TARGET_NR_mq_open:
10992 {
c7536ab6 10993 struct mq_attr posix_mq_attr;
26400775 10994 struct mq_attr *pposix_mq_attr;
c7536ab6 10995 int host_flags;
24e1003a 10996
c7536ab6 10997 host_flags = target_to_host_bitmask(arg2, fcntl_flags_tbl);
26400775
LD		 10998 pposix_mq_attr = NULL;
10999 if (arg4) {
11000 if (copy_from_user_mq_attr(&posix_mq_attr, arg4) != 0) {
2852aafd 11001 return -TARGET_EFAULT;
26400775
LD		 11002 }
11003 pposix_mq_attr = &posix_mq_attr;
c7536ab6 11004 }
24e1003a 11005 p = lock_user_string(arg1 - 1);
c7536ab6 11006 if (!p) {
2852aafd 11007 return -TARGET_EFAULT;
b6ce1f6b 11008 }
26400775 11009 ret = get_errno(mq_open(p, host_flags, arg3, pposix_mq_attr));
24e1003a
AJ		 11010 unlock_user (p, arg1, 0);
11011 }
72eb7ea8 11012 return ret;
24e1003a
AJ		 11013
11014 case TARGET_NR_mq_unlink:
11015 p = lock_user_string(arg1 - 1);
3211215e 11016 if (!p) {
72eb7ea8 11017 return -TARGET_EFAULT;
3211215e 11018 }
24e1003a
AJ		 11019 ret = get_errno(mq_unlink(p));
11020 unlock_user (p, arg1, 0);
72eb7ea8 11021 return ret;
24e1003a
AJ		 11022
11023 case TARGET_NR_mq_timedsend:
11024 {
11025 struct timespec ts;
11026
11027 p = lock_user (VERIFY_READ, arg2, arg3, 1);
11028 if (arg5 != 0) {
11029 target_to_host_timespec(&ts, arg5);
d40ecd66 11030 ret = get_errno(safe_mq_timedsend(arg1, p, arg3, arg4, &ts));
24e1003a 11031 host_to_target_timespec(arg5, &ts);
d40ecd66
PM		 11032 } else {
11033 ret = get_errno(safe_mq_timedsend(arg1, p, arg3, arg4, NULL));
24e1003a 11034 }
24e1003a
AJ		 11035 unlock_user (p, arg2, arg3);
11036 }
72eb7ea8 11037 return ret;
24e1003a
AJ		 11038
11039 case TARGET_NR_mq_timedreceive:
11040 {
11041 struct timespec ts;
11042 unsigned int prio;
11043
11044 p = lock_user (VERIFY_READ, arg2, arg3, 1);
11045 if (arg5 != 0) {
11046 target_to_host_timespec(&ts, arg5);
d40ecd66
PM		 11047 ret = get_errno(safe_mq_timedreceive(arg1, p, arg3,
11048 &prio, &ts));
24e1003a 11049 host_to_target_timespec(arg5, &ts);
d40ecd66
PM		 11050 } else {
11051 ret = get_errno(safe_mq_timedreceive(arg1, p, arg3,
11052 &prio, NULL));
24e1003a 11053 }
24e1003a
AJ		 11054 unlock_user (p, arg2, arg3);
11055 if (arg4 != 0)
11056 put_user_u32(prio, arg4);
11057 }
72eb7ea8 11058 return ret;
24e1003a
AJ		 11059
11060 /* Not implemented for now... */
11061/* case TARGET_NR_mq_notify: */
11062/* break; */
11063
11064 case TARGET_NR_mq_getsetattr:
11065 {
11066 struct mq_attr posix_mq_attr_in, posix_mq_attr_out;
11067 ret = 0;
24e1003a
AJ		 11068 if (arg2 != 0) {
11069 copy_from_user_mq_attr(&posix_mq_attr_in, arg2);
a23ea409
MF		 11070 ret = get_errno(mq_setattr(arg1, &posix_mq_attr_in,
11071 &posix_mq_attr_out));
11072 } else if (arg3 != 0) {
11073 ret = get_errno(mq_getattr(arg1, &posix_mq_attr_out));
11074 }
11075 if (ret == 0 && arg3 != 0) {
11076 copy_to_user_mq_attr(arg3, &posix_mq_attr_out);
24e1003a 11077 }
24e1003a 11078 }
72eb7ea8 11079 return ret;
24e1003a
AJ		 11080#endif
11081
3ce34dfb
VS		 11082#ifdef CONFIG_SPLICE
11083#ifdef TARGET_NR_tee
11084 case TARGET_NR_tee:
11085 {
11086 ret = get_errno(tee(arg1,arg2,arg3,arg4));
11087 }
72eb7ea8 11088 return ret;
3ce34dfb
VS		 11089#endif
11090#ifdef TARGET_NR_splice
11091 case TARGET_NR_splice:
11092 {
11093 loff_t loff_in, loff_out;
11094 loff_t *ploff_in = NULL, *ploff_out = NULL;
17644b36
AS		 11095 if (arg2) {
11096 if (get_user_u64(loff_in, arg2)) {
2852aafd 11097 return -TARGET_EFAULT;
17644b36 11098 }
3ce34dfb
VS		 11099 ploff_in = &loff_in;
11100 }
17644b36
AS		 11101 if (arg4) {
11102 if (get_user_u64(loff_out, arg4)) {
2852aafd 11103 return -TARGET_EFAULT;
17644b36 11104 }
3ce34dfb
VS		 11105 ploff_out = &loff_out;
11106 }
11107 ret = get_errno(splice(arg1, ploff_in, arg3, ploff_out, arg5, arg6));
17644b36
AS		 11108 if (arg2) {
11109 if (put_user_u64(loff_in, arg2)) {
2852aafd 11110 return -TARGET_EFAULT;
17644b36
AS		 11111 }
11112 }
11113 if (arg4) {
11114 if (put_user_u64(loff_out, arg4)) {
2852aafd 11115 return -TARGET_EFAULT;
17644b36
AS		 11116 }
11117 }
3ce34dfb 11118 }
72eb7ea8 11119 return ret;
3ce34dfb
VS		 11120#endif
11121#ifdef TARGET_NR_vmsplice
11122 case TARGET_NR_vmsplice:
11123 {
f287b2c2
RH		 11124 struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
11125 if (vec != NULL) {
11126 ret = get_errno(vmsplice(arg1, vec, arg3, arg4));
11127 unlock_iovec(vec, arg2, arg3, 0);
11128 } else {
11129 ret = -host_to_target_errno(errno);
11130 }
3ce34dfb 11131 }
72eb7ea8 11132 return ret;
3ce34dfb
VS		 11133#endif
11134#endif /* CONFIG_SPLICE */
c2882b96
RV		 11135#ifdef CONFIG_EVENTFD
11136#if defined(TARGET_NR_eventfd)
11137 case TARGET_NR_eventfd:
11138 ret = get_errno(eventfd(arg1, 0));
b929f7e5
PMD		 11139 if (ret >= 0) {
11140 fd_trans_register(ret, &target_eventfd_trans);
11141 }
72eb7ea8 11142 return ret;
c2882b96
RV		 11143#endif
11144#if defined(TARGET_NR_eventfd2)
11145 case TARGET_NR_eventfd2:
5947c697
PJ		 11146 {
11147 int host_flags = arg2 & (~(TARGET_O_NONBLOCK | TARGET_O_CLOEXEC));
11148 if (arg2 & TARGET_O_NONBLOCK) {
11149 host_flags |= O_NONBLOCK;
11150 }
11151 if (arg2 & TARGET_O_CLOEXEC) {
11152 host_flags |= O_CLOEXEC;
11153 }
11154 ret = get_errno(eventfd(arg1, host_flags));
b929f7e5
PMD		 11155 if (ret >= 0) {
11156 fd_trans_register(ret, &target_eventfd_trans);
11157 }
72eb7ea8 11158 return ret;
5947c697 11159 }
c2882b96
RV		 11160#endif
11161#endif /* CONFIG_EVENTFD */
d0927938
UH		 11162#if defined(CONFIG_FALLOCATE) && defined(TARGET_NR_fallocate)
11163 case TARGET_NR_fallocate:
20249ae1
AG		 11164#if TARGET_ABI_BITS == 32
11165 ret = get_errno(fallocate(arg1, arg2, target_offset64(arg3, arg4),
11166 target_offset64(arg5, arg6)));
11167#else
d0927938 11168 ret = get_errno(fallocate(arg1, arg2, arg3, arg4));
20249ae1 11169#endif
72eb7ea8 11170 return ret;
c727f47d
PM		 11171#endif
11172#if defined(CONFIG_SYNC_FILE_RANGE)
11173#if defined(TARGET_NR_sync_file_range)
11174 case TARGET_NR_sync_file_range:
11175#if TARGET_ABI_BITS == 32
bfcedc57
RV		 11176#if defined(TARGET_MIPS)
11177 ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4),
11178 target_offset64(arg5, arg6), arg7));
11179#else
c727f47d
PM		 11180 ret = get_errno(sync_file_range(arg1, target_offset64(arg2, arg3),
11181 target_offset64(arg4, arg5), arg6));
bfcedc57 11182#endif /* !TARGET_MIPS */
c727f47d
PM		 11183#else
11184 ret = get_errno(sync_file_range(arg1, arg2, arg3, arg4));
11185#endif
72eb7ea8 11186 return ret;
c727f47d
PM		 11187#endif
11188#if defined(TARGET_NR_sync_file_range2)
11189 case TARGET_NR_sync_file_range2:
11190 /* This is like sync_file_range but the arguments are reordered */
11191#if TARGET_ABI_BITS == 32
11192 ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4),
11193 target_offset64(arg5, arg6), arg2));
11194#else
11195 ret = get_errno(sync_file_range(arg1, arg3, arg4, arg2));
11196#endif
72eb7ea8 11197 return ret;
c727f47d 11198#endif
3b6edd16 11199#endif
e36800c9
LV		 11200#if defined(TARGET_NR_signalfd4)
11201 case TARGET_NR_signalfd4:
72eb7ea8 11202 return do_signalfd4(arg1, arg2, arg4);
e36800c9
LV		 11203#endif
11204#if defined(TARGET_NR_signalfd)
11205 case TARGET_NR_signalfd:
72eb7ea8 11206 return do_signalfd4(arg1, arg2, 0);
e36800c9 11207#endif
3b6edd16
PM		 11208#if defined(CONFIG_EPOLL)
11209#if defined(TARGET_NR_epoll_create)
11210 case TARGET_NR_epoll_create:
72eb7ea8 11211 return get_errno(epoll_create(arg1));
3b6edd16
PM		 11212#endif
11213#if defined(TARGET_NR_epoll_create1) && defined(CONFIG_EPOLL_CREATE1)
11214 case TARGET_NR_epoll_create1:
72eb7ea8 11215 return get_errno(epoll_create1(arg1));
3b6edd16
PM		 11216#endif
11217#if defined(TARGET_NR_epoll_ctl)
11218 case TARGET_NR_epoll_ctl:
11219 {
11220 struct epoll_event ep;
11221 struct epoll_event *epp = 0;
11222 if (arg4) {
11223 struct target_epoll_event *target_ep;
11224 if (!lock_user_struct(VERIFY_READ, target_ep, arg4, 1)) {
2852aafd 11225 return -TARGET_EFAULT;
3b6edd16
PM		 11226 }
11227 ep.events = tswap32(target_ep->events);
11228 /* The epoll_data_t union is just opaque data to the kernel,
11229 * so we transfer all 64 bits across and need not worry what
11230 * actual data type it is.
11231 */
11232 ep.data.u64 = tswap64(target_ep->data.u64);
11233 unlock_user_struct(target_ep, arg4, 0);
11234 epp = &ep;
11235 }
72eb7ea8 11236 return get_errno(epoll_ctl(arg1, arg2, arg3, epp));
3b6edd16
PM		 11237 }
11238#endif
11239
227f0214 11240#if defined(TARGET_NR_epoll_wait) || defined(TARGET_NR_epoll_pwait)
3b6edd16
PM		 11241#if defined(TARGET_NR_epoll_wait)
11242 case TARGET_NR_epoll_wait:
11243#endif
227f0214 11244#if defined(TARGET_NR_epoll_pwait)
3b6edd16
PM		 11245 case TARGET_NR_epoll_pwait:
11246#endif
11247 {
11248 struct target_epoll_event *target_ep;
11249 struct epoll_event *ep;
11250 int epfd = arg1;
11251 int maxevents = arg3;
11252 int timeout = arg4;
11253
2ba7fae3 11254 if (maxevents <= 0 || maxevents > TARGET_EP_MAX_EVENTS) {
72eb7ea8 11255 return -TARGET_EINVAL;
2ba7fae3
PM		 11256 }
11257
3b6edd16
PM		 11258 target_ep = lock_user(VERIFY_WRITE, arg2,
11259 maxevents * sizeof(struct target_epoll_event), 1);
11260 if (!target_ep) {
2852aafd 11261 return -TARGET_EFAULT;
3b6edd16
PM		 11262 }
11263
04c95f4d
PM		 11264 ep = g_try_new(struct epoll_event, maxevents);
11265 if (!ep) {
11266 unlock_user(target_ep, arg2, 0);
72eb7ea8 11267 return -TARGET_ENOMEM;
04c95f4d 11268 }
3b6edd16
PM		 11269
11270 switch (num) {
227f0214 11271#if defined(TARGET_NR_epoll_pwait)
3b6edd16
PM		 11272 case TARGET_NR_epoll_pwait:
11273 {
11274 target_sigset_t *target_set;
11275 sigset_t _set, *set = &_set;
11276
11277 if (arg5) {
c815701e
PM		 11278 if (arg6 != sizeof(target_sigset_t)) {
11279 ret = -TARGET_EINVAL;
11280 break;
11281 }
11282
3b6edd16
PM		 11283 target_set = lock_user(VERIFY_READ, arg5,
11284 sizeof(target_sigset_t), 1);
11285 if (!target_set) {
04c95f4d
PM		 11286 ret = -TARGET_EFAULT;
11287 break;
3b6edd16
PM		 11288 }
11289 target_to_host_sigset(set, target_set);
11290 unlock_user(target_set, arg5, 0);
11291 } else {
11292 set = NULL;
11293 }
11294
227f0214
PM		 11295 ret = get_errno(safe_epoll_pwait(epfd, ep, maxevents, timeout,
11296 set, SIGSET_T_SIZE));
3b6edd16
PM		 11297 break;
11298 }
11299#endif
11300#if defined(TARGET_NR_epoll_wait)
11301 case TARGET_NR_epoll_wait:
227f0214
PM		 11302 ret = get_errno(safe_epoll_pwait(epfd, ep, maxevents, timeout,
11303 NULL, 0));
3b6edd16
PM		 11304 break;
11305#endif
11306 default:
11307 ret = -TARGET_ENOSYS;
11308 }
11309 if (!is_error(ret)) {
11310 int i;
11311 for (i = 0; i < ret; i++) {
11312 target_ep[i].events = tswap32(ep[i].events);
11313 target_ep[i].data.u64 = tswap64(ep[i].data.u64);
11314 }
04c95f4d
PM		 11315 unlock_user(target_ep, arg2,
11316 ret * sizeof(struct target_epoll_event));
11317 } else {
11318 unlock_user(target_ep, arg2, 0);
3b6edd16 11319 }
04c95f4d 11320 g_free(ep);
72eb7ea8 11321 return ret;
3b6edd16
PM		 11322 }
11323#endif
163a05a8
PM		 11324#endif
11325#ifdef TARGET_NR_prlimit64
11326 case TARGET_NR_prlimit64:
11327 {
11328 /* args: pid, resource number, ptr to new rlimit, ptr to old rlimit */
11329 struct target_rlimit64 *target_rnew, *target_rold;
11330 struct host_rlimit64 rnew, rold, *rnewp = 0;
95018018 11331 int resource = target_to_host_resource(arg2);
163a05a8
PM		 11332 if (arg3) {
11333 if (!lock_user_struct(VERIFY_READ, target_rnew, arg3, 1)) {
2852aafd 11334 return -TARGET_EFAULT;
163a05a8
PM		 11335 }
11336 rnew.rlim_cur = tswap64(target_rnew->rlim_cur);
11337 rnew.rlim_max = tswap64(target_rnew->rlim_max);
11338 unlock_user_struct(target_rnew, arg3, 0);
11339 rnewp = &rnew;
11340 }
11341
95018018 11342 ret = get_errno(sys_prlimit64(arg1, resource, rnewp, arg4 ? &rold : 0));
163a05a8
PM		 11343 if (!is_error(ret) && arg4) {
11344 if (!lock_user_struct(VERIFY_WRITE, target_rold, arg4, 1)) {
2852aafd 11345 return -TARGET_EFAULT;
163a05a8
PM		 11346 }
11347 target_rold->rlim_cur = tswap64(rold.rlim_cur);
11348 target_rold->rlim_max = tswap64(rold.rlim_max);
11349 unlock_user_struct(target_rold, arg4, 1);
11350 }
72eb7ea8 11351 return ret;
163a05a8 11352 }
3d21d29c
RH		 11353#endif
11354#ifdef TARGET_NR_gethostname
11355 case TARGET_NR_gethostname:
11356 {
11357 char *name = lock_user(VERIFY_WRITE, arg1, arg2, 0);
11358 if (name) {
11359 ret = get_errno(gethostname(name, arg2));
11360 unlock_user(name, arg1, arg2);
11361 } else {
11362 ret = -TARGET_EFAULT;
11363 }
72eb7ea8 11364 return ret;
3d21d29c 11365 }
89aaf1a6
RV		 11366#endif
11367#ifdef TARGET_NR_atomic_cmpxchg_32
11368 case TARGET_NR_atomic_cmpxchg_32:
11369 {
11370 /* should use start_exclusive from main.c */
11371 abi_ulong mem_value;
11372 if (get_user_u32(mem_value, arg6)) {
11373 target_siginfo_t info;
11374 info.si_signo = SIGSEGV;
11375 info.si_errno = 0;
11376 info.si_code = TARGET_SEGV_MAPERR;
11377 info._sifields._sigfault._addr = arg6;
9d2803f7
PM		 11378 queue_signal((CPUArchState *)cpu_env, info.si_signo,
11379 QEMU_SI_FAULT, &info);
89aaf1a6
RV		 11380 ret = 0xdeadbeef;
11381
11382 }
11383 if (mem_value == arg2)
11384 put_user_u32(arg1, arg6);
72eb7ea8 11385 return mem_value;
89aaf1a6
RV		 11386 }
11387#endif
11388#ifdef TARGET_NR_atomic_barrier
11389 case TARGET_NR_atomic_barrier:
72eb7ea8
RH		 11390 /* Like the kernel implementation and the
11391 qemu arm barrier, no-op this? */
11392 return 0;
d0927938 11393#endif
f4f1e10a
ECL		 11394
11395#ifdef TARGET_NR_timer_create
11396 case TARGET_NR_timer_create:
11397 {
11398 /* args: clockid_t clockid, struct sigevent *sevp, timer_t *timerid */
11399
11400 struct sigevent host_sevp = { {0}, }, *phost_sevp = NULL;
f4f1e10a
ECL		 11401
11402 int clkid = arg1;
11403 int timer_index = next_free_host_timer();
11404
11405 if (timer_index < 0) {
11406 ret = -TARGET_EAGAIN;
11407 } else {
11408 timer_t *phtimer = g_posix_timers + timer_index;
11409
11410 if (arg2) {
f4f1e10a 11411 phost_sevp = &host_sevp;
c065976f
PM		 11412 ret = target_to_host_sigevent(phost_sevp, arg2);
11413 if (ret != 0) {
72eb7ea8 11414 return ret;
c065976f 11415 }
f4f1e10a
ECL		 11416 }
11417
11418 ret = get_errno(timer_create(clkid, phost_sevp, phtimer));
11419 if (ret) {
11420 phtimer = NULL;
11421 } else {
aecc8861 11422 if (put_user(TIMER_MAGIC | timer_index, arg3, target_timer_t)) {
2852aafd 11423 return -TARGET_EFAULT;
f4f1e10a 11424 }
f4f1e10a
ECL		 11425 }
11426 }
72eb7ea8 11427 return ret;
f4f1e10a
ECL		 11428 }
11429#endif
11430
11431#ifdef TARGET_NR_timer_settime
11432 case TARGET_NR_timer_settime:
11433 {
11434 /* args: timer_t timerid, int flags, const struct itimerspec *new_value,
11435 * struct itimerspec * old_value */
aecc8861 11436 target_timer_t timerid = get_timer_id(arg1);
e52a99f7 11437
aecc8861
AG		 11438 if (timerid < 0) {
11439 ret = timerid;
11440 } else if (arg3 == 0) {
f4f1e10a
ECL		 11441 ret = -TARGET_EINVAL;
11442 } else {
e52a99f7 11443 timer_t htimer = g_posix_timers[timerid];
f4f1e10a
ECL		 11444 struct itimerspec hspec_new = {{0},}, hspec_old = {{0},};
11445
40c80b5e 11446 if (target_to_host_itimerspec(&hspec_new, arg3)) {
2852aafd 11447 return -TARGET_EFAULT;
40c80b5e 11448 }
f4f1e10a
ECL		 11449 ret = get_errno(
11450 timer_settime(htimer, arg2, &hspec_new, &hspec_old));
40c80b5e 11451 if (arg4 && host_to_target_itimerspec(arg4, &hspec_old)) {
2852aafd 11452 return -TARGET_EFAULT;
40c80b5e 11453 }
f4f1e10a 11454 }
72eb7ea8 11455 return ret;
f4f1e10a
ECL		 11456 }
11457#endif
11458
11459#ifdef TARGET_NR_timer_gettime
11460 case TARGET_NR_timer_gettime:
11461 {
11462 /* args: timer_t timerid, struct itimerspec *curr_value */
aecc8861 11463 target_timer_t timerid = get_timer_id(arg1);
e52a99f7 11464
aecc8861
AG		 11465 if (timerid < 0) {
11466 ret = timerid;
11467 } else if (!arg2) {
11468 ret = -TARGET_EFAULT;
f4f1e10a 11469 } else {
e52a99f7 11470 timer_t htimer = g_posix_timers[timerid];
f4f1e10a
ECL		 11471 struct itimerspec hspec;
11472 ret = get_errno(timer_gettime(htimer, &hspec));
11473
11474 if (host_to_target_itimerspec(arg2, &hspec)) {
11475 ret = -TARGET_EFAULT;
11476 }
11477 }
72eb7ea8 11478 return ret;
f4f1e10a
ECL		 11479 }
11480#endif
11481
11482#ifdef TARGET_NR_timer_getoverrun
11483 case TARGET_NR_timer_getoverrun:
11484 {
11485 /* args: timer_t timerid */
aecc8861 11486 target_timer_t timerid = get_timer_id(arg1);
e52a99f7 11487
aecc8861
AG		 11488 if (timerid < 0) {
11489 ret = timerid;
f4f1e10a 11490 } else {
e52a99f7 11491 timer_t htimer = g_posix_timers[timerid];
f4f1e10a
ECL		 11492 ret = get_errno(timer_getoverrun(htimer));
11493 }
e36800c9 11494 fd_trans_unregister(ret);
72eb7ea8 11495 return ret;
f4f1e10a
ECL		 11496 }
11497#endif
11498
11499#ifdef TARGET_NR_timer_delete
11500 case TARGET_NR_timer_delete:
11501 {
11502 /* args: timer_t timerid */
aecc8861 11503 target_timer_t timerid = get_timer_id(arg1);
e52a99f7 11504
aecc8861
AG		 11505 if (timerid < 0) {
11506 ret = timerid;
f4f1e10a 11507 } else {
e52a99f7 11508 timer_t htimer = g_posix_timers[timerid];
f4f1e10a 11509 ret = get_errno(timer_delete(htimer));
e52a99f7 11510 g_posix_timers[timerid] = 0;
f4f1e10a 11511 }
72eb7ea8 11512 return ret;
f4f1e10a
ECL		 11513 }
11514#endif
11515
51834341
RV		 11516#if defined(TARGET_NR_timerfd_create) && defined(CONFIG_TIMERFD)
11517 case TARGET_NR_timerfd_create:
72eb7ea8
RH		 11518 return get_errno(timerfd_create(arg1,
11519 target_to_host_bitmask(arg2, fcntl_flags_tbl)));
51834341
RV		 11520#endif
11521
11522#if defined(TARGET_NR_timerfd_gettime) && defined(CONFIG_TIMERFD)
11523 case TARGET_NR_timerfd_gettime:
11524 {
11525 struct itimerspec its_curr;
11526
11527 ret = get_errno(timerfd_gettime(arg1, &its_curr));
11528
11529 if (arg2 && host_to_target_itimerspec(arg2, &its_curr)) {
2852aafd 11530 return -TARGET_EFAULT;
51834341
RV		 11531 }
11532 }
72eb7ea8 11533 return ret;
51834341
RV		 11534#endif
11535
11536#if defined(TARGET_NR_timerfd_settime) && defined(CONFIG_TIMERFD)
11537 case TARGET_NR_timerfd_settime:
11538 {
11539 struct itimerspec its_new, its_old, *p_new;
11540
11541 if (arg3) {
11542 if (target_to_host_itimerspec(&its_new, arg3)) {
2852aafd 11543 return -TARGET_EFAULT;
51834341
RV		 11544 }
11545 p_new = &its_new;
11546 } else {
11547 p_new = NULL;
11548 }
11549
11550 ret = get_errno(timerfd_settime(arg1, arg2, p_new, &its_old));
11551
11552 if (arg4 && host_to_target_itimerspec(arg4, &its_old)) {
2852aafd 11553 return -TARGET_EFAULT;
51834341
RV		 11554 }
11555 }
72eb7ea8 11556 return ret;
51834341
RV		 11557#endif
11558
ab31cda3
PB		 11559#if defined(TARGET_NR_ioprio_get) && defined(__NR_ioprio_get)
11560 case TARGET_NR_ioprio_get:
72eb7ea8 11561 return get_errno(ioprio_get(arg1, arg2));
ab31cda3
PB		 11562#endif
11563
11564#if defined(TARGET_NR_ioprio_set) && defined(__NR_ioprio_set)
11565 case TARGET_NR_ioprio_set:
72eb7ea8 11566 return get_errno(ioprio_set(arg1, arg2, arg3));
ab31cda3
PB		 11567#endif
11568
9af5c906
RV		 11569#if defined(TARGET_NR_setns) && defined(CONFIG_SETNS)
11570 case TARGET_NR_setns:
72eb7ea8 11571 return get_errno(setns(arg1, arg2));
9af5c906
RV		 11572#endif
11573#if defined(TARGET_NR_unshare) && defined(CONFIG_SETNS)
11574 case TARGET_NR_unshare:
72eb7ea8 11575 return get_errno(unshare(arg1));
9af5c906 11576#endif
2f14788c
LV		 11577#if defined(TARGET_NR_kcmp) && defined(__NR_kcmp)
11578 case TARGET_NR_kcmp:
72eb7ea8 11579 return get_errno(kcmp(arg1, arg2, arg3, arg4, arg5));
2f14788c 11580#endif
fa97e38e
RH		 11581#ifdef TARGET_NR_swapcontext
11582 case TARGET_NR_swapcontext:
11583 /* PowerPC specific. */
72eb7ea8 11584 return do_swapcontext(cpu_env, arg1, arg2, arg3);
fa97e38e 11585#endif
9af5c906 11586
31e31b8a 11587 default:
122f9c83 11588 qemu_log_mask(LOG_UNIMP, "Unsupported syscall: %d\n", num);
72eb7ea8 11589 return -TARGET_ENOSYS;
31e31b8a 11590 }
31e31b8a
FB		 11591 return ret;
11592}
dc1ce18b
RH		 11593
11594abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
11595 abi_long arg2, abi_long arg3, abi_long arg4,
11596 abi_long arg5, abi_long arg6, abi_long arg7,
11597 abi_long arg8)
11598{
11599 CPUState *cpu = ENV_GET_CPU(cpu_env);
11600 abi_long ret;
11601
11602#ifdef DEBUG_ERESTARTSYS
11603 /* Debug-only code for exercising the syscall-restart code paths
11604 * in the per-architecture cpu main loops: restart every syscall
11605 * the guest makes once before letting it through.
11606 */
11607 {
11608 static bool flag;
11609 flag = !flag;
11610 if (flag) {
11611 return -TARGET_ERESTARTSYS;
11612 }
11613 }
11614#endif
11615
11616 trace_guest_user_syscall(cpu, num, arg1, arg2, arg3, arg4,
11617 arg5, arg6, arg7, arg8);
11618
11619 if (unlikely(do_strace)) {
11620 print_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6);
11621 ret = do_syscall1(cpu_env, num, arg1, arg2, arg3, arg4,
11622 arg5, arg6, arg7, arg8);
11623 print_syscall_ret(num, ret);
11624 } else {
11625 ret = do_syscall1(cpu_env, num, arg1, arg2, arg3, arg4,
11626 arg5, arg6, arg7, arg8);
11627 }
11628
11629 trace_guest_user_syscall_ret(cpu, num, ret);
11630 return ret;
11631}
Mirror of https://git.qemu.org/git/qemu.git