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1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ | |
2 | ||
3 | #pragma once | |
4 | ||
5 | /*** | |
6 | This file is part of systemd. | |
7 | ||
8 | Copyright 2010 Lennart Poettering | |
9 | ||
10 | systemd is free software; you can redistribute it and/or modify it | |
11 | under the terms of the GNU Lesser General Public License as published by | |
12 | the Free Software Foundation; either version 2.1 of the License, or | |
13 | (at your option) any later version. | |
14 | ||
15 | systemd is distributed in the hope that it will be useful, but | |
16 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
18 | Lesser General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU Lesser General Public License | |
21 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
22 | ***/ | |
23 | ||
24 | /* Missing glibc definitions to access certain kernel APIs */ | |
25 | ||
26 | #include <sys/resource.h> | |
27 | #include <sys/syscall.h> | |
28 | #include <fcntl.h> | |
29 | #include <stdlib.h> | |
30 | #include <unistd.h> | |
31 | #include <errno.h> | |
32 | #include <linux/oom.h> | |
33 | #include <linux/input.h> | |
34 | #include <linux/if_link.h> | |
35 | #include <linux/loop.h> | |
36 | #include <linux/if_link.h> | |
37 | ||
38 | #ifdef HAVE_AUDIT | |
39 | #include <libaudit.h> | |
40 | #endif | |
41 | ||
42 | #include "macro.h" | |
43 | ||
44 | #ifdef ARCH_MIPS | |
45 | #include <asm/sgidefs.h> | |
46 | #endif | |
47 | ||
48 | #ifndef RLIMIT_RTTIME | |
49 | #define RLIMIT_RTTIME 15 | |
50 | #endif | |
51 | ||
52 | /* If RLIMIT_RTTIME is not defined, then we cannot use RLIMIT_NLIMITS as is */ | |
53 | #define _RLIMIT_MAX (RLIMIT_RTTIME+1 > RLIMIT_NLIMITS ? RLIMIT_RTTIME+1 : RLIMIT_NLIMITS) | |
54 | ||
55 | #ifndef F_LINUX_SPECIFIC_BASE | |
56 | #define F_LINUX_SPECIFIC_BASE 1024 | |
57 | #endif | |
58 | ||
59 | #ifndef F_SETPIPE_SZ | |
60 | #define F_SETPIPE_SZ (F_LINUX_SPECIFIC_BASE + 7) | |
61 | #endif | |
62 | ||
63 | #ifndef F_GETPIPE_SZ | |
64 | #define F_GETPIPE_SZ (F_LINUX_SPECIFIC_BASE + 8) | |
65 | #endif | |
66 | ||
67 | #ifndef IP_FREEBIND | |
68 | #define IP_FREEBIND 15 | |
69 | #endif | |
70 | ||
71 | #ifndef OOM_SCORE_ADJ_MIN | |
72 | #define OOM_SCORE_ADJ_MIN (-1000) | |
73 | #endif | |
74 | ||
75 | #ifndef OOM_SCORE_ADJ_MAX | |
76 | #define OOM_SCORE_ADJ_MAX 1000 | |
77 | #endif | |
78 | ||
79 | #ifndef AUDIT_SERVICE_START | |
80 | #define AUDIT_SERVICE_START 1130 /* Service (daemon) start */ | |
81 | #endif | |
82 | ||
83 | #ifndef AUDIT_SERVICE_STOP | |
84 | #define AUDIT_SERVICE_STOP 1131 /* Service (daemon) stop */ | |
85 | #endif | |
86 | ||
87 | #ifndef TIOCVHANGUP | |
88 | #define TIOCVHANGUP 0x5437 | |
89 | #endif | |
90 | ||
91 | #ifndef IP_TRANSPARENT | |
92 | #define IP_TRANSPARENT 19 | |
93 | #endif | |
94 | ||
95 | #ifndef IFLA_CARRIER | |
96 | #define IFLA_CARRIER 33 | |
97 | #ifndef IFLA_NUM_RX_QUEUES | |
98 | #define IFLA_NUM_RX_QUEUES 32 | |
99 | #ifndef IFLA_NUM_TX_QUEUES | |
100 | #define IFLA_NUM_TX_QUEUES 31 | |
101 | #ifndef IFLA_PROMISCUITY | |
102 | #define IFLA_PROMISCUITY 30 | |
103 | #endif | |
104 | #endif | |
105 | #endif | |
106 | #endif | |
107 | ||
108 | #ifndef SOL_NETLINK | |
109 | #define SOL_NETLINK 270 | |
110 | #endif | |
111 | ||
112 | #if !HAVE_DECL_PIVOT_ROOT | |
113 | static inline int pivot_root(const char *new_root, const char *put_old) { | |
114 | return syscall(SYS_pivot_root, new_root, put_old); | |
115 | } | |
116 | #endif | |
117 | ||
118 | #ifdef __x86_64__ | |
119 | # ifndef __NR_fanotify_init | |
120 | # define __NR_fanotify_init 300 | |
121 | # endif | |
122 | # ifndef __NR_fanotify_mark | |
123 | # define __NR_fanotify_mark 301 | |
124 | # endif | |
125 | #elif defined _MIPS_SIM | |
126 | # if _MIPS_SIM == _MIPS_SIM_ABI32 | |
127 | # ifndef __NR_fanotify_init | |
128 | # define __NR_fanotify_init 4336 | |
129 | # endif | |
130 | # ifndef __NR_fanotify_mark | |
131 | # define __NR_fanotify_mark 4337 | |
132 | # endif | |
133 | # elif _MIPS_SIM == _MIPS_SIM_NABI32 | |
134 | # ifndef __NR_fanotify_init | |
135 | # define __NR_fanotify_init 6300 | |
136 | # endif | |
137 | # ifndef __NR_fanotify_mark | |
138 | # define __NR_fanotify_mark 6301 | |
139 | # endif | |
140 | # elif _MIPS_SIM == _MIPS_SIM_ABI64 | |
141 | # ifndef __NR_fanotify_init | |
142 | # define __NR_fanotify_init 5295 | |
143 | # endif | |
144 | # ifndef __NR_fanotify_mark | |
145 | # define __NR_fanotify_mark 5296 | |
146 | # endif | |
147 | # endif | |
148 | #else | |
149 | # ifndef __NR_fanotify_init | |
150 | # define __NR_fanotify_init 338 | |
151 | # endif | |
152 | # ifndef __NR_fanotify_mark | |
153 | # define __NR_fanotify_mark 339 | |
154 | # endif | |
155 | #endif | |
156 | ||
157 | #ifndef HAVE_FANOTIFY_INIT | |
158 | static inline int fanotify_init(unsigned int flags, unsigned int event_f_flags) { | |
159 | return syscall(__NR_fanotify_init, flags, event_f_flags); | |
160 | } | |
161 | #endif | |
162 | ||
163 | #ifndef HAVE_FANOTIFY_MARK | |
164 | static inline int fanotify_mark(int fanotify_fd, unsigned int flags, uint64_t mask, | |
165 | int dfd, const char *pathname) { | |
166 | #if defined _MIPS_SIM && _MIPS_SIM == _MIPS_SIM_ABI32 || defined __powerpc__ && !defined __powerpc64__ \ | |
167 | || defined __arm__ && !defined __aarch64__ | |
168 | union { | |
169 | uint64_t _64; | |
170 | uint32_t _32[2]; | |
171 | } _mask; | |
172 | _mask._64 = mask; | |
173 | ||
174 | return syscall(__NR_fanotify_mark, fanotify_fd, flags, | |
175 | _mask._32[0], _mask._32[1], dfd, pathname); | |
176 | #else | |
177 | return syscall(__NR_fanotify_mark, fanotify_fd, flags, mask, dfd, pathname); | |
178 | #endif | |
179 | } | |
180 | #endif | |
181 | ||
182 | #ifndef BTRFS_IOCTL_MAGIC | |
183 | #define BTRFS_IOCTL_MAGIC 0x94 | |
184 | #endif | |
185 | ||
186 | #ifndef BTRFS_PATH_NAME_MAX | |
187 | #define BTRFS_PATH_NAME_MAX 4087 | |
188 | #endif | |
189 | ||
190 | #ifndef BTRFS_DEVICE_PATH_NAME_MAX | |
191 | #define BTRFS_DEVICE_PATH_NAME_MAX 1024 | |
192 | #endif | |
193 | ||
194 | #ifndef BTRFS_FSID_SIZE | |
195 | #define BTRFS_FSID_SIZE 16 | |
196 | #endif | |
197 | ||
198 | #ifndef BTRFS_UUID_SIZE | |
199 | #define BTRFS_UUID_SIZE 16 | |
200 | #endif | |
201 | ||
202 | #ifndef HAVE_LINUX_BTRFS_H | |
203 | struct btrfs_ioctl_vol_args { | |
204 | int64_t fd; | |
205 | char name[BTRFS_PATH_NAME_MAX + 1]; | |
206 | }; | |
207 | ||
208 | struct btrfs_ioctl_dev_info_args { | |
209 | uint64_t devid; /* in/out */ | |
210 | uint8_t uuid[BTRFS_UUID_SIZE]; /* in/out */ | |
211 | uint64_t bytes_used; /* out */ | |
212 | uint64_t total_bytes; /* out */ | |
213 | uint64_t unused[379]; /* pad to 4k */ | |
214 | char path[BTRFS_DEVICE_PATH_NAME_MAX]; /* out */ | |
215 | }; | |
216 | ||
217 | struct btrfs_ioctl_fs_info_args { | |
218 | uint64_t max_id; /* out */ | |
219 | uint64_t num_devices; /* out */ | |
220 | uint8_t fsid[BTRFS_FSID_SIZE]; /* out */ | |
221 | uint64_t reserved[124]; /* pad to 1k */ | |
222 | }; | |
223 | #endif | |
224 | ||
225 | #ifndef BTRFS_IOC_DEFRAG | |
226 | #define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, struct btrfs_ioctl_vol_args) | |
227 | #endif | |
228 | ||
229 | #ifndef BTRFS_IOC_DEV_INFO | |
230 | #define BTRFS_IOC_DEV_INFO _IOWR(BTRFS_IOCTL_MAGIC, 30, \ | |
231 | struct btrfs_ioctl_dev_info_args) | |
232 | #endif | |
233 | ||
234 | #ifndef BTRFS_IOC_FS_INFO | |
235 | #define BTRFS_IOC_FS_INFO _IOR(BTRFS_IOCTL_MAGIC, 31, \ | |
236 | struct btrfs_ioctl_fs_info_args) | |
237 | #endif | |
238 | ||
239 | #ifndef BTRFS_SUPER_MAGIC | |
240 | #define BTRFS_SUPER_MAGIC 0x9123683E | |
241 | #endif | |
242 | ||
243 | #ifndef MS_MOVE | |
244 | #define MS_MOVE 8192 | |
245 | #endif | |
246 | ||
247 | #ifndef MS_PRIVATE | |
248 | #define MS_PRIVATE (1 << 18) | |
249 | #endif | |
250 | ||
251 | #if !HAVE_DECL_GETTID | |
252 | static inline pid_t gettid(void) { | |
253 | return (pid_t) syscall(SYS_gettid); | |
254 | } | |
255 | #endif | |
256 | ||
257 | #ifndef SCM_SECURITY | |
258 | #define SCM_SECURITY 0x03 | |
259 | #endif | |
260 | ||
261 | #ifndef MS_STRICTATIME | |
262 | #define MS_STRICTATIME (1<<24) | |
263 | #endif | |
264 | ||
265 | #ifndef MS_REC | |
266 | #define MS_REC 16384 | |
267 | #endif | |
268 | ||
269 | #ifndef MS_SHARED | |
270 | #define MS_SHARED (1<<20) | |
271 | #endif | |
272 | ||
273 | #ifndef PR_SET_NO_NEW_PRIVS | |
274 | #define PR_SET_NO_NEW_PRIVS 38 | |
275 | #endif | |
276 | ||
277 | #ifndef PR_SET_CHILD_SUBREAPER | |
278 | #define PR_SET_CHILD_SUBREAPER 36 | |
279 | #endif | |
280 | ||
281 | #ifndef MAX_HANDLE_SZ | |
282 | #define MAX_HANDLE_SZ 128 | |
283 | #endif | |
284 | ||
285 | #ifndef __NR_name_to_handle_at | |
286 | # if defined(__x86_64__) | |
287 | # define __NR_name_to_handle_at 303 | |
288 | # elif defined(__i386__) | |
289 | # define __NR_name_to_handle_at 341 | |
290 | # elif defined(__arm__) | |
291 | # define __NR_name_to_handle_at 370 | |
292 | # elif defined(__powerpc__) | |
293 | # define __NR_name_to_handle_at 345 | |
294 | # else | |
295 | # error "__NR_name_to_handle_at is not defined" | |
296 | # endif | |
297 | #endif | |
298 | ||
299 | #if !HAVE_DECL_NAME_TO_HANDLE_AT | |
300 | struct file_handle { | |
301 | unsigned int handle_bytes; | |
302 | int handle_type; | |
303 | unsigned char f_handle[0]; | |
304 | }; | |
305 | ||
306 | static inline int name_to_handle_at(int fd, const char *name, struct file_handle *handle, int *mnt_id, int flags) { | |
307 | return syscall(__NR_name_to_handle_at, fd, name, handle, mnt_id, flags); | |
308 | } | |
309 | #endif | |
310 | ||
311 | #ifndef HAVE_SECURE_GETENV | |
312 | # ifdef HAVE___SECURE_GETENV | |
313 | # define secure_getenv __secure_getenv | |
314 | # else | |
315 | # error "neither secure_getenv nor __secure_getenv are available" | |
316 | # endif | |
317 | #endif | |
318 | ||
319 | #ifndef CIFS_MAGIC_NUMBER | |
320 | # define CIFS_MAGIC_NUMBER 0xFF534D42 | |
321 | #endif | |
322 | ||
323 | #ifndef TFD_TIMER_CANCEL_ON_SET | |
324 | # define TFD_TIMER_CANCEL_ON_SET (1 << 1) | |
325 | #endif | |
326 | ||
327 | #ifndef SO_REUSEPORT | |
328 | # define SO_REUSEPORT 15 | |
329 | #endif | |
330 | ||
331 | #ifndef EVIOCREVOKE | |
332 | # define EVIOCREVOKE _IOW('E', 0x91, int) | |
333 | #endif | |
334 | ||
335 | #ifndef DRM_IOCTL_SET_MASTER | |
336 | # define DRM_IOCTL_SET_MASTER _IO('d', 0x1e) | |
337 | #endif | |
338 | ||
339 | #ifndef DRM_IOCTL_DROP_MASTER | |
340 | # define DRM_IOCTL_DROP_MASTER _IO('d', 0x1f) | |
341 | #endif | |
342 | ||
343 | #if defined(__i386__) || defined(__x86_64__) | |
344 | ||
345 | /* The precise definition of __O_TMPFILE is arch specific, so let's | |
346 | * just define this on x86 where we know the value. */ | |
347 | ||
348 | #ifndef __O_TMPFILE | |
349 | #define __O_TMPFILE 020000000 | |
350 | #endif | |
351 | ||
352 | /* a horrid kludge trying to make sure that this will fail on old kernels */ | |
353 | #ifndef O_TMPFILE | |
354 | #define O_TMPFILE (__O_TMPFILE | O_DIRECTORY) | |
355 | #endif | |
356 | ||
357 | #endif | |
358 | ||
359 | #ifndef __NR_setns | |
360 | # if defined(__x86_64__) | |
361 | # define __NR_setns 308 | |
362 | # elif defined(__i386__) | |
363 | # define __NR_setns 346 | |
364 | # else | |
365 | # error "__NR_setns is not defined" | |
366 | # endif | |
367 | #endif | |
368 | ||
369 | #if !HAVE_DECL_SETNS | |
370 | static inline int setns(int fd, int nstype) { | |
371 | return syscall(__NR_setns, fd, nstype); | |
372 | } | |
373 | #endif | |
374 | ||
375 | #if !HAVE_DECL_LO_FLAGS_PARTSCAN | |
376 | #define LO_FLAGS_PARTSCAN 8 | |
377 | #endif | |
378 | ||
379 | #ifndef LOOP_CTL_REMOVE | |
380 | #define LOOP_CTL_REMOVE 0x4C81 | |
381 | #endif | |
382 | ||
383 | #ifndef LOOP_CTL_GET_FREE | |
384 | #define LOOP_CTL_GET_FREE 0x4C82 | |
385 | #endif | |
386 | ||
387 | #ifndef IFLA_BOND_MAX | |
388 | enum { | |
389 | IFLA_BOND_UNSPEC, | |
390 | IFLA_BOND_MODE, | |
391 | IFLA_BOND_ACTIVE_SLAVE, | |
392 | IFLA_BOND_MIIMON, | |
393 | IFLA_BOND_UPDELAY, | |
394 | IFLA_BOND_DOWNDELAY, | |
395 | IFLA_BOND_USE_CARRIER, | |
396 | IFLA_BOND_ARP_INTERVAL, | |
397 | IFLA_BOND_ARP_IP_TARGET, | |
398 | IFLA_BOND_ARP_VALIDATE, | |
399 | IFLA_BOND_ARP_ALL_TARGETS, | |
400 | IFLA_BOND_PRIMARY, | |
401 | IFLA_BOND_PRIMARY_RESELECT, | |
402 | IFLA_BOND_FAIL_OVER_MAC, | |
403 | IFLA_BOND_XMIT_HASH_POLICY, | |
404 | IFLA_BOND_RESEND_IGMP, | |
405 | IFLA_BOND_NUM_PEER_NOTIF, | |
406 | IFLA_BOND_ALL_SLAVES_ACTIVE, | |
407 | IFLA_BOND_MIN_LINKS, | |
408 | IFLA_BOND_LP_INTERVAL, | |
409 | IFLA_BOND_PACKETS_PER_SLAVE, | |
410 | IFLA_BOND_AD_LACP_RATE, | |
411 | IFLA_BOND_AD_SELECT, | |
412 | IFLA_BOND_AD_INFO, | |
413 | __IFLA_BOND_MAX, | |
414 | }; | |
415 | ||
416 | #define IFLA_BOND_MAX (__IFLA_BOND_MAX - 1) | |
417 | #endif |