2 * QEMU Guest Agent POSIX-specific command implementations
4 * Copyright IBM Corp. 2011
7 * Michael Roth <mdroth@linux.vnet.ibm.com>
8 * Michal Privoznik <mprivozn@redhat.com>
10 * This work is licensed under the terms of the GNU GPL, version 2 or later.
11 * See the COPYING file in the top-level directory.
14 #include "qemu/osdep.h"
15 #include <sys/ioctl.h>
16 #include <sys/utsname.h>
19 #include "guest-agent-core.h"
20 #include "qga-qapi-commands.h"
21 #include "qapi/error.h"
22 #include "qapi/qmp/qerror.h"
23 #include "qemu/queue.h"
24 #include "qemu/host-utils.h"
25 #include "qemu/sockets.h"
26 #include "qemu/base64.h"
27 #include "qemu/cutils.h"
33 #ifndef CONFIG_HAS_ENVIRON
35 #include <crt_externs.h>
36 #define environ (*_NSGetEnviron())
38 extern char **environ
;
42 #if defined(__linux__)
46 #include <arpa/inet.h>
47 #include <sys/socket.h>
49 #include <sys/statvfs.h>
52 #define CONFIG_FSFREEZE
59 static void ga_wait_child(pid_t pid
, int *status
, Error
**errp
)
66 rpid
= waitpid(pid
, status
, 0);
67 } while (rpid
== -1 && errno
== EINTR
);
70 error_setg_errno(errp
, errno
, "failed to wait for child (pid: %d)",
75 g_assert(rpid
== pid
);
78 void qmp_guest_shutdown(bool has_mode
, const char *mode
, Error
**errp
)
80 const char *shutdown_flag
;
81 Error
*local_err
= NULL
;
85 slog("guest-shutdown called, mode: %s", mode
);
86 if (!has_mode
|| strcmp(mode
, "powerdown") == 0) {
88 } else if (strcmp(mode
, "halt") == 0) {
90 } else if (strcmp(mode
, "reboot") == 0) {
94 "mode is invalid (valid values are: halt|powerdown|reboot");
100 /* child, start the shutdown */
102 reopen_fd_to_null(0);
103 reopen_fd_to_null(1);
104 reopen_fd_to_null(2);
106 execle("/sbin/shutdown", "shutdown", "-h", shutdown_flag
, "+0",
107 "hypervisor initiated shutdown", (char*)NULL
, environ
);
109 } else if (pid
< 0) {
110 error_setg_errno(errp
, errno
, "failed to create child process");
114 ga_wait_child(pid
, &status
, &local_err
);
116 error_propagate(errp
, local_err
);
120 if (!WIFEXITED(status
)) {
121 error_setg(errp
, "child process has terminated abnormally");
125 if (WEXITSTATUS(status
)) {
126 error_setg(errp
, "child process has failed to shutdown");
133 int64_t qmp_guest_get_time(Error
**errp
)
138 ret
= qemu_gettimeofday(&tq
);
140 error_setg_errno(errp
, errno
, "Failed to get time");
144 return tq
.tv_sec
* 1000000000LL + tq
.tv_usec
* 1000;
147 void qmp_guest_set_time(bool has_time
, int64_t time_ns
, Error
**errp
)
152 Error
*local_err
= NULL
;
155 /* If user has passed a time, validate and set it. */
159 /* year-2038 will overflow in case time_t is 32bit */
160 if (time_ns
/ 1000000000 != (time_t)(time_ns
/ 1000000000)) {
161 error_setg(errp
, "Time %" PRId64
" is too large", time_ns
);
165 tv
.tv_sec
= time_ns
/ 1000000000;
166 tv
.tv_usec
= (time_ns
% 1000000000) / 1000;
167 g_date_set_time_t(&date
, tv
.tv_sec
);
168 if (date
.year
< 1970 || date
.year
>= 2070) {
169 error_setg_errno(errp
, errno
, "Invalid time");
173 ret
= settimeofday(&tv
, NULL
);
175 error_setg_errno(errp
, errno
, "Failed to set time to guest");
180 /* Now, if user has passed a time to set and the system time is set, we
181 * just need to synchronize the hardware clock. However, if no time was
182 * passed, user is requesting the opposite: set the system time from the
183 * hardware clock (RTC). */
187 reopen_fd_to_null(0);
188 reopen_fd_to_null(1);
189 reopen_fd_to_null(2);
191 /* Use '/sbin/hwclock -w' to set RTC from the system time,
192 * or '/sbin/hwclock -s' to set the system time from RTC. */
193 execle("/sbin/hwclock", "hwclock", has_time
? "-w" : "-s",
196 } else if (pid
< 0) {
197 error_setg_errno(errp
, errno
, "failed to create child process");
201 ga_wait_child(pid
, &status
, &local_err
);
203 error_propagate(errp
, local_err
);
207 if (!WIFEXITED(status
)) {
208 error_setg(errp
, "child process has terminated abnormally");
212 if (WEXITSTATUS(status
)) {
213 error_setg(errp
, "hwclock failed to set hardware clock to system time");
224 typedef struct GuestFileHandle
{
228 QTAILQ_ENTRY(GuestFileHandle
) next
;
232 QTAILQ_HEAD(, GuestFileHandle
) filehandles
;
233 } guest_file_state
= {
234 .filehandles
= QTAILQ_HEAD_INITIALIZER(guest_file_state
.filehandles
),
237 static int64_t guest_file_handle_add(FILE *fh
, Error
**errp
)
239 GuestFileHandle
*gfh
;
242 handle
= ga_get_fd_handle(ga_state
, errp
);
247 gfh
= g_new0(GuestFileHandle
, 1);
250 QTAILQ_INSERT_TAIL(&guest_file_state
.filehandles
, gfh
, next
);
255 static GuestFileHandle
*guest_file_handle_find(int64_t id
, Error
**errp
)
257 GuestFileHandle
*gfh
;
259 QTAILQ_FOREACH(gfh
, &guest_file_state
.filehandles
, next
)
266 error_setg(errp
, "handle '%" PRId64
"' has not been found", id
);
270 typedef const char * const ccpc
;
276 /* http://pubs.opengroup.org/onlinepubs/9699919799/functions/fopen.html */
277 static const struct {
280 } guest_file_open_modes
[] = {
281 { (ccpc
[]){ "r", NULL
}, O_RDONLY
},
282 { (ccpc
[]){ "rb", NULL
}, O_RDONLY
| O_BINARY
},
283 { (ccpc
[]){ "w", NULL
}, O_WRONLY
| O_CREAT
| O_TRUNC
},
284 { (ccpc
[]){ "wb", NULL
}, O_WRONLY
| O_CREAT
| O_TRUNC
| O_BINARY
},
285 { (ccpc
[]){ "a", NULL
}, O_WRONLY
| O_CREAT
| O_APPEND
},
286 { (ccpc
[]){ "ab", NULL
}, O_WRONLY
| O_CREAT
| O_APPEND
| O_BINARY
},
287 { (ccpc
[]){ "r+", NULL
}, O_RDWR
},
288 { (ccpc
[]){ "rb+", "r+b", NULL
}, O_RDWR
| O_BINARY
},
289 { (ccpc
[]){ "w+", NULL
}, O_RDWR
| O_CREAT
| O_TRUNC
},
290 { (ccpc
[]){ "wb+", "w+b", NULL
}, O_RDWR
| O_CREAT
| O_TRUNC
| O_BINARY
},
291 { (ccpc
[]){ "a+", NULL
}, O_RDWR
| O_CREAT
| O_APPEND
},
292 { (ccpc
[]){ "ab+", "a+b", NULL
}, O_RDWR
| O_CREAT
| O_APPEND
| O_BINARY
}
296 find_open_flag(const char *mode_str
, Error
**errp
)
300 for (mode
= 0; mode
< ARRAY_SIZE(guest_file_open_modes
); ++mode
) {
303 form
= guest_file_open_modes
[mode
].forms
;
304 while (*form
!= NULL
&& strcmp(*form
, mode_str
) != 0) {
312 if (mode
== ARRAY_SIZE(guest_file_open_modes
)) {
313 error_setg(errp
, "invalid file open mode '%s'", mode_str
);
316 return guest_file_open_modes
[mode
].oflag_base
| O_NOCTTY
| O_NONBLOCK
;
319 #define DEFAULT_NEW_FILE_MODE (S_IRUSR | S_IWUSR | \
320 S_IRGRP | S_IWGRP | \
324 safe_open_or_create(const char *path
, const char *mode
, Error
**errp
)
326 Error
*local_err
= NULL
;
329 oflag
= find_open_flag(mode
, &local_err
);
330 if (local_err
== NULL
) {
333 /* If the caller wants / allows creation of a new file, we implement it
334 * with a two step process: open() + (open() / fchmod()).
336 * First we insist on creating the file exclusively as a new file. If
337 * that succeeds, we're free to set any file-mode bits on it. (The
338 * motivation is that we want to set those file-mode bits independently
339 * of the current umask.)
341 * If the exclusive creation fails because the file already exists
342 * (EEXIST is not possible for any other reason), we just attempt to
343 * open the file, but in this case we won't be allowed to change the
344 * file-mode bits on the preexistent file.
346 * The pathname should never disappear between the two open()s in
347 * practice. If it happens, then someone very likely tried to race us.
348 * In this case just go ahead and report the ENOENT from the second
349 * open() to the caller.
351 * If the caller wants to open a preexistent file, then the first
352 * open() is decisive and its third argument is ignored, and the second
353 * open() and the fchmod() are never called.
355 fd
= open(path
, oflag
| ((oflag
& O_CREAT
) ? O_EXCL
: 0), 0);
356 if (fd
== -1 && errno
== EEXIST
) {
357 oflag
&= ~(unsigned)O_CREAT
;
358 fd
= open(path
, oflag
);
362 error_setg_errno(&local_err
, errno
, "failed to open file '%s' "
363 "(mode: '%s')", path
, mode
);
365 qemu_set_cloexec(fd
);
367 if ((oflag
& O_CREAT
) && fchmod(fd
, DEFAULT_NEW_FILE_MODE
) == -1) {
368 error_setg_errno(&local_err
, errno
, "failed to set permission "
369 "0%03o on new file '%s' (mode: '%s')",
370 (unsigned)DEFAULT_NEW_FILE_MODE
, path
, mode
);
374 f
= fdopen(fd
, mode
);
376 error_setg_errno(&local_err
, errno
, "failed to associate "
377 "stdio stream with file descriptor %d, "
378 "file '%s' (mode: '%s')", fd
, path
, mode
);
385 if (oflag
& O_CREAT
) {
391 error_propagate(errp
, local_err
);
395 int64_t qmp_guest_file_open(const char *path
, bool has_mode
, const char *mode
,
399 Error
*local_err
= NULL
;
405 slog("guest-file-open called, filepath: %s, mode: %s", path
, mode
);
406 fh
= safe_open_or_create(path
, mode
, &local_err
);
407 if (local_err
!= NULL
) {
408 error_propagate(errp
, local_err
);
412 /* set fd non-blocking to avoid common use cases (like reading from a
413 * named pipe) from hanging the agent
415 qemu_set_nonblock(fileno(fh
));
417 handle
= guest_file_handle_add(fh
, errp
);
423 slog("guest-file-open, handle: %" PRId64
, handle
);
427 void qmp_guest_file_close(int64_t handle
, Error
**errp
)
429 GuestFileHandle
*gfh
= guest_file_handle_find(handle
, errp
);
432 slog("guest-file-close called, handle: %" PRId64
, handle
);
437 ret
= fclose(gfh
->fh
);
439 error_setg_errno(errp
, errno
, "failed to close handle");
443 QTAILQ_REMOVE(&guest_file_state
.filehandles
, gfh
, next
);
447 struct GuestFileRead
*qmp_guest_file_read(int64_t handle
, bool has_count
,
448 int64_t count
, Error
**errp
)
450 GuestFileHandle
*gfh
= guest_file_handle_find(handle
, errp
);
451 GuestFileRead
*read_data
= NULL
;
461 count
= QGA_READ_COUNT_DEFAULT
;
462 } else if (count
< 0 || count
>= UINT32_MAX
) {
463 error_setg(errp
, "value '%" PRId64
"' is invalid for argument count",
470 /* explicitly flush when switching from writing to reading */
471 if (gfh
->state
== RW_STATE_WRITING
) {
472 int ret
= fflush(fh
);
474 error_setg_errno(errp
, errno
, "failed to flush file");
477 gfh
->state
= RW_STATE_NEW
;
480 buf
= g_malloc0(count
+1);
481 read_count
= fread(buf
, 1, count
, fh
);
483 error_setg_errno(errp
, errno
, "failed to read file");
484 slog("guest-file-read failed, handle: %" PRId64
, handle
);
487 read_data
= g_new0(GuestFileRead
, 1);
488 read_data
->count
= read_count
;
489 read_data
->eof
= feof(fh
);
491 read_data
->buf_b64
= g_base64_encode(buf
, read_count
);
493 gfh
->state
= RW_STATE_READING
;
501 GuestFileWrite
*qmp_guest_file_write(int64_t handle
, const char *buf_b64
,
502 bool has_count
, int64_t count
,
505 GuestFileWrite
*write_data
= NULL
;
509 GuestFileHandle
*gfh
= guest_file_handle_find(handle
, errp
);
518 if (gfh
->state
== RW_STATE_READING
) {
519 int ret
= fseek(fh
, 0, SEEK_CUR
);
521 error_setg_errno(errp
, errno
, "failed to seek file");
524 gfh
->state
= RW_STATE_NEW
;
527 buf
= qbase64_decode(buf_b64
, -1, &buf_len
, errp
);
534 } else if (count
< 0 || count
> buf_len
) {
535 error_setg(errp
, "value '%" PRId64
"' is invalid for argument count",
541 write_count
= fwrite(buf
, 1, count
, fh
);
543 error_setg_errno(errp
, errno
, "failed to write to file");
544 slog("guest-file-write failed, handle: %" PRId64
, handle
);
546 write_data
= g_new0(GuestFileWrite
, 1);
547 write_data
->count
= write_count
;
548 write_data
->eof
= feof(fh
);
549 gfh
->state
= RW_STATE_WRITING
;
557 struct GuestFileSeek
*qmp_guest_file_seek(int64_t handle
, int64_t offset
,
558 GuestFileWhence
*whence_code
,
561 GuestFileHandle
*gfh
= guest_file_handle_find(handle
, errp
);
562 GuestFileSeek
*seek_data
= NULL
;
572 /* We stupidly exposed 'whence':'int' in our qapi */
573 whence
= ga_parse_whence(whence_code
, &err
);
575 error_propagate(errp
, err
);
580 ret
= fseek(fh
, offset
, whence
);
582 error_setg_errno(errp
, errno
, "failed to seek file");
583 if (errno
== ESPIPE
) {
584 /* file is non-seekable, stdio shouldn't be buffering anyways */
585 gfh
->state
= RW_STATE_NEW
;
588 seek_data
= g_new0(GuestFileSeek
, 1);
589 seek_data
->position
= ftell(fh
);
590 seek_data
->eof
= feof(fh
);
591 gfh
->state
= RW_STATE_NEW
;
598 void qmp_guest_file_flush(int64_t handle
, Error
**errp
)
600 GuestFileHandle
*gfh
= guest_file_handle_find(handle
, errp
);
611 error_setg_errno(errp
, errno
, "failed to flush file");
613 gfh
->state
= RW_STATE_NEW
;
617 /* linux-specific implementations. avoid this if at all possible. */
618 #if defined(__linux__)
620 #if defined(CONFIG_FSFREEZE) || defined(CONFIG_FSTRIM)
621 typedef struct FsMount
{
624 unsigned int devmajor
, devminor
;
625 QTAILQ_ENTRY(FsMount
) next
;
628 typedef QTAILQ_HEAD(FsMountList
, FsMount
) FsMountList
;
630 static void free_fs_mount_list(FsMountList
*mounts
)
632 FsMount
*mount
, *temp
;
638 QTAILQ_FOREACH_SAFE(mount
, mounts
, next
, temp
) {
639 QTAILQ_REMOVE(mounts
, mount
, next
);
640 g_free(mount
->dirname
);
641 g_free(mount
->devtype
);
646 static int dev_major_minor(const char *devpath
,
647 unsigned int *devmajor
, unsigned int *devminor
)
654 if (stat(devpath
, &st
) < 0) {
655 slog("failed to stat device file '%s': %s", devpath
, strerror(errno
));
658 if (S_ISDIR(st
.st_mode
)) {
659 /* It is bind mount */
662 if (S_ISBLK(st
.st_mode
)) {
663 *devmajor
= major(st
.st_rdev
);
664 *devminor
= minor(st
.st_rdev
);
671 * Walk the mount table and build a list of local file systems
673 static void build_fs_mount_list_from_mtab(FsMountList
*mounts
, Error
**errp
)
677 char const *mtab
= "/proc/self/mounts";
679 unsigned int devmajor
, devminor
;
681 fp
= setmntent(mtab
, "r");
683 error_setg(errp
, "failed to open mtab file: '%s'", mtab
);
687 while ((ment
= getmntent(fp
))) {
689 * An entry which device name doesn't start with a '/' is
690 * either a dummy file system or a network file system.
691 * Add special handling for smbfs and cifs as is done by
694 if ((ment
->mnt_fsname
[0] != '/') ||
695 (strcmp(ment
->mnt_type
, "smbfs") == 0) ||
696 (strcmp(ment
->mnt_type
, "cifs") == 0)) {
699 if (dev_major_minor(ment
->mnt_fsname
, &devmajor
, &devminor
) == -2) {
700 /* Skip bind mounts */
704 mount
= g_new0(FsMount
, 1);
705 mount
->dirname
= g_strdup(ment
->mnt_dir
);
706 mount
->devtype
= g_strdup(ment
->mnt_type
);
707 mount
->devmajor
= devmajor
;
708 mount
->devminor
= devminor
;
710 QTAILQ_INSERT_TAIL(mounts
, mount
, next
);
716 static void decode_mntname(char *name
, int len
)
719 for (i
= 0; i
<= len
; i
++) {
720 if (name
[i
] != '\\') {
722 } else if (name
[i
+ 1] == '\\') {
725 } else if (name
[i
+ 1] >= '0' && name
[i
+ 1] <= '3' &&
726 name
[i
+ 2] >= '0' && name
[i
+ 2] <= '7' &&
727 name
[i
+ 3] >= '0' && name
[i
+ 3] <= '7') {
728 name
[j
++] = (name
[i
+ 1] - '0') * 64 +
729 (name
[i
+ 2] - '0') * 8 +
738 static void build_fs_mount_list(FsMountList
*mounts
, Error
**errp
)
741 char const *mountinfo
= "/proc/self/mountinfo";
743 char *line
= NULL
, *dash
;
746 unsigned int devmajor
, devminor
;
747 int ret
, dir_s
, dir_e
, type_s
, type_e
, dev_s
, dev_e
;
749 fp
= fopen(mountinfo
, "r");
751 build_fs_mount_list_from_mtab(mounts
, errp
);
755 while (getline(&line
, &n
, fp
) != -1) {
756 ret
= sscanf(line
, "%*u %*u %u:%u %*s %n%*s%n%c",
757 &devmajor
, &devminor
, &dir_s
, &dir_e
, &check
);
761 dash
= strstr(line
+ dir_e
, " - ");
765 ret
= sscanf(dash
, " - %n%*s%n %n%*s%n%c",
766 &type_s
, &type_e
, &dev_s
, &dev_e
, &check
);
773 decode_mntname(line
+ dir_s
, dir_e
- dir_s
);
774 decode_mntname(dash
+ dev_s
, dev_e
- dev_s
);
776 /* btrfs reports major number = 0 */
777 if (strcmp("btrfs", dash
+ type_s
) != 0 ||
778 dev_major_minor(dash
+ dev_s
, &devmajor
, &devminor
) < 0) {
783 mount
= g_new0(FsMount
, 1);
784 mount
->dirname
= g_strdup(line
+ dir_s
);
785 mount
->devtype
= g_strdup(dash
+ type_s
);
786 mount
->devmajor
= devmajor
;
787 mount
->devminor
= devminor
;
789 QTAILQ_INSERT_TAIL(mounts
, mount
, next
);
797 #if defined(CONFIG_FSFREEZE)
799 static char *get_pci_driver(char const *syspath
, int pathlen
, Error
**errp
)
807 path
= g_strndup(syspath
, pathlen
);
808 dpath
= g_strdup_printf("%s/driver", path
);
809 len
= readlink(dpath
, buf
, sizeof(buf
) - 1);
812 driver
= g_path_get_basename(buf
);
819 static int compare_uint(const void *_a
, const void *_b
)
821 unsigned int a
= *(unsigned int *)_a
;
822 unsigned int b
= *(unsigned int *)_b
;
824 return a
< b
? -1 : a
> b
? 1 : 0;
827 /* Walk the specified sysfs and build a sorted list of host or ata numbers */
828 static int build_hosts(char const *syspath
, char const *host
, bool ata
,
829 unsigned int *hosts
, int hosts_max
, Error
**errp
)
833 struct dirent
*entry
;
836 path
= g_strndup(syspath
, host
- syspath
);
839 error_setg_errno(errp
, errno
, "opendir(\"%s\")", path
);
844 while (i
< hosts_max
) {
845 entry
= readdir(dir
);
849 if (ata
&& sscanf(entry
->d_name
, "ata%d", hosts
+ i
) == 1) {
851 } else if (!ata
&& sscanf(entry
->d_name
, "host%d", hosts
+ i
) == 1) {
856 qsort(hosts
, i
, sizeof(hosts
[0]), compare_uint
);
863 /* Store disk device info specified by @sysfs into @fs */
864 static void build_guest_fsinfo_for_real_device(char const *syspath
,
865 GuestFilesystemInfo
*fs
,
868 unsigned int pci
[4], host
, hosts
[8], tgt
[3];
869 int i
, nhosts
= 0, pcilen
;
870 GuestDiskAddress
*disk
;
871 GuestPCIAddress
*pciaddr
;
872 GuestDiskAddressList
*list
= NULL
;
873 bool has_ata
= false, has_host
= false, has_tgt
= false;
874 char *p
, *q
, *driver
= NULL
;
876 p
= strstr(syspath
, "/devices/pci");
877 if (!p
|| sscanf(p
+ 12, "%*x:%*x/%x:%x:%x.%x%n",
878 pci
, pci
+ 1, pci
+ 2, pci
+ 3, &pcilen
) < 4) {
879 g_debug("only pci device is supported: sysfs path \"%s\"", syspath
);
883 driver
= get_pci_driver(syspath
, (p
+ 12 + pcilen
) - syspath
, errp
);
888 p
= strstr(syspath
, "/target");
889 if (p
&& sscanf(p
+ 7, "%*u:%*u:%*u/%*u:%u:%u:%u",
890 tgt
, tgt
+ 1, tgt
+ 2) == 3) {
894 p
= strstr(syspath
, "/ata");
899 p
= strstr(syspath
, "/host");
902 if (p
&& sscanf(q
, "%u", &host
) == 1) {
904 nhosts
= build_hosts(syspath
, p
, has_ata
, hosts
,
905 ARRAY_SIZE(hosts
), errp
);
911 pciaddr
= g_malloc0(sizeof(*pciaddr
));
912 pciaddr
->domain
= pci
[0];
913 pciaddr
->bus
= pci
[1];
914 pciaddr
->slot
= pci
[2];
915 pciaddr
->function
= pci
[3];
917 disk
= g_malloc0(sizeof(*disk
));
918 disk
->pci_controller
= pciaddr
;
920 list
= g_malloc0(sizeof(*list
));
923 if (strcmp(driver
, "ata_piix") == 0) {
924 /* a host per ide bus, target*:0:<unit>:0 */
925 if (!has_host
|| !has_tgt
) {
926 g_debug("invalid sysfs path '%s' (driver '%s')", syspath
, driver
);
929 for (i
= 0; i
< nhosts
; i
++) {
930 if (host
== hosts
[i
]) {
931 disk
->bus_type
= GUEST_DISK_BUS_TYPE_IDE
;
938 g_debug("no host for '%s' (driver '%s')", syspath
, driver
);
941 } else if (strcmp(driver
, "sym53c8xx") == 0) {
942 /* scsi(LSI Logic): target*:0:<unit>:0 */
944 g_debug("invalid sysfs path '%s' (driver '%s')", syspath
, driver
);
947 disk
->bus_type
= GUEST_DISK_BUS_TYPE_SCSI
;
949 } else if (strcmp(driver
, "virtio-pci") == 0) {
951 /* virtio-scsi: target*:0:0:<unit> */
952 disk
->bus_type
= GUEST_DISK_BUS_TYPE_SCSI
;
955 /* virtio-blk: 1 disk per 1 device */
956 disk
->bus_type
= GUEST_DISK_BUS_TYPE_VIRTIO
;
958 } else if (strcmp(driver
, "ahci") == 0) {
959 /* ahci: 1 host per 1 unit */
960 if (!has_host
|| !has_tgt
) {
961 g_debug("invalid sysfs path '%s' (driver '%s')", syspath
, driver
);
964 for (i
= 0; i
< nhosts
; i
++) {
965 if (host
== hosts
[i
]) {
967 disk
->bus_type
= GUEST_DISK_BUS_TYPE_SATA
;
972 g_debug("no host for '%s' (driver '%s')", syspath
, driver
);
976 g_debug("unknown driver '%s' (sysfs path '%s')", driver
, syspath
);
980 list
->next
= fs
->disk
;
987 qapi_free_GuestDiskAddressList(list
);
992 static void build_guest_fsinfo_for_device(char const *devpath
,
993 GuestFilesystemInfo
*fs
,
996 /* Store a list of slave devices of virtual volume specified by @syspath into
998 static void build_guest_fsinfo_for_virtual_device(char const *syspath
,
999 GuestFilesystemInfo
*fs
,
1004 struct dirent
*entry
;
1006 dirpath
= g_strdup_printf("%s/slaves", syspath
);
1007 dir
= opendir(dirpath
);
1009 if (errno
!= ENOENT
) {
1010 error_setg_errno(errp
, errno
, "opendir(\"%s\")", dirpath
);
1018 entry
= readdir(dir
);
1019 if (entry
== NULL
) {
1021 error_setg_errno(errp
, errno
, "readdir(\"%s\")", dirpath
);
1026 if (entry
->d_type
== DT_LNK
) {
1029 g_debug(" slave device '%s'", entry
->d_name
);
1030 path
= g_strdup_printf("%s/slaves/%s", syspath
, entry
->d_name
);
1031 build_guest_fsinfo_for_device(path
, fs
, errp
);
1044 /* Dispatch to functions for virtual/real device */
1045 static void build_guest_fsinfo_for_device(char const *devpath
,
1046 GuestFilesystemInfo
*fs
,
1049 char *syspath
= realpath(devpath
, NULL
);
1052 error_setg_errno(errp
, errno
, "realpath(\"%s\")", devpath
);
1057 fs
->name
= g_path_get_basename(syspath
);
1060 g_debug(" parse sysfs path '%s'", syspath
);
1062 if (strstr(syspath
, "/devices/virtual/block/")) {
1063 build_guest_fsinfo_for_virtual_device(syspath
, fs
, errp
);
1065 build_guest_fsinfo_for_real_device(syspath
, fs
, errp
);
1071 /* Return a list of the disk device(s)' info which @mount lies on */
1072 static GuestFilesystemInfo
*build_guest_fsinfo(struct FsMount
*mount
,
1075 GuestFilesystemInfo
*fs
= g_malloc0(sizeof(*fs
));
1077 unsigned long used
, nonroot_total
, fr_size
;
1078 char *devpath
= g_strdup_printf("/sys/dev/block/%u:%u",
1079 mount
->devmajor
, mount
->devminor
);
1081 fs
->mountpoint
= g_strdup(mount
->dirname
);
1082 fs
->type
= g_strdup(mount
->devtype
);
1083 build_guest_fsinfo_for_device(devpath
, fs
, errp
);
1085 if (statvfs(fs
->mountpoint
, &buf
) == 0) {
1086 fr_size
= buf
.f_frsize
;
1087 used
= buf
.f_blocks
- buf
.f_bfree
;
1088 nonroot_total
= used
+ buf
.f_bavail
;
1089 fs
->used_bytes
= used
* fr_size
;
1090 fs
->total_bytes
= nonroot_total
* fr_size
;
1092 fs
->has_total_bytes
= true;
1093 fs
->has_used_bytes
= true;
1101 GuestFilesystemInfoList
*qmp_guest_get_fsinfo(Error
**errp
)
1104 struct FsMount
*mount
;
1105 GuestFilesystemInfoList
*new, *ret
= NULL
;
1106 Error
*local_err
= NULL
;
1108 QTAILQ_INIT(&mounts
);
1109 build_fs_mount_list(&mounts
, &local_err
);
1111 error_propagate(errp
, local_err
);
1115 QTAILQ_FOREACH(mount
, &mounts
, next
) {
1116 g_debug("Building guest fsinfo for '%s'", mount
->dirname
);
1118 new = g_malloc0(sizeof(*ret
));
1119 new->value
= build_guest_fsinfo(mount
, &local_err
);
1123 error_propagate(errp
, local_err
);
1124 qapi_free_GuestFilesystemInfoList(ret
);
1130 free_fs_mount_list(&mounts
);
1136 FSFREEZE_HOOK_THAW
= 0,
1137 FSFREEZE_HOOK_FREEZE
,
1140 static const char *fsfreeze_hook_arg_string
[] = {
1145 static void execute_fsfreeze_hook(FsfreezeHookArg arg
, Error
**errp
)
1150 const char *arg_str
= fsfreeze_hook_arg_string
[arg
];
1151 Error
*local_err
= NULL
;
1153 hook
= ga_fsfreeze_hook(ga_state
);
1157 if (access(hook
, X_OK
) != 0) {
1158 error_setg_errno(errp
, errno
, "can't access fsfreeze hook '%s'", hook
);
1162 slog("executing fsfreeze hook with arg '%s'", arg_str
);
1166 reopen_fd_to_null(0);
1167 reopen_fd_to_null(1);
1168 reopen_fd_to_null(2);
1170 execle(hook
, hook
, arg_str
, NULL
, environ
);
1171 _exit(EXIT_FAILURE
);
1172 } else if (pid
< 0) {
1173 error_setg_errno(errp
, errno
, "failed to create child process");
1177 ga_wait_child(pid
, &status
, &local_err
);
1179 error_propagate(errp
, local_err
);
1183 if (!WIFEXITED(status
)) {
1184 error_setg(errp
, "fsfreeze hook has terminated abnormally");
1188 status
= WEXITSTATUS(status
);
1190 error_setg(errp
, "fsfreeze hook has failed with status %d", status
);
1196 * Return status of freeze/thaw
1198 GuestFsfreezeStatus
qmp_guest_fsfreeze_status(Error
**errp
)
1200 if (ga_is_frozen(ga_state
)) {
1201 return GUEST_FSFREEZE_STATUS_FROZEN
;
1204 return GUEST_FSFREEZE_STATUS_THAWED
;
1207 int64_t qmp_guest_fsfreeze_freeze(Error
**errp
)
1209 return qmp_guest_fsfreeze_freeze_list(false, NULL
, errp
);
1213 * Walk list of mounted file systems in the guest, and freeze the ones which
1214 * are real local file systems.
1216 int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints
,
1217 strList
*mountpoints
,
1223 struct FsMount
*mount
;
1224 Error
*local_err
= NULL
;
1227 slog("guest-fsfreeze called");
1229 execute_fsfreeze_hook(FSFREEZE_HOOK_FREEZE
, &local_err
);
1231 error_propagate(errp
, local_err
);
1235 QTAILQ_INIT(&mounts
);
1236 build_fs_mount_list(&mounts
, &local_err
);
1238 error_propagate(errp
, local_err
);
1242 /* cannot risk guest agent blocking itself on a write in this state */
1243 ga_set_frozen(ga_state
);
1245 QTAILQ_FOREACH_REVERSE(mount
, &mounts
, FsMountList
, next
) {
1246 /* To issue fsfreeze in the reverse order of mounts, check if the
1247 * mount is listed in the list here */
1248 if (has_mountpoints
) {
1249 for (list
= mountpoints
; list
; list
= list
->next
) {
1250 if (strcmp(list
->value
, mount
->dirname
) == 0) {
1259 fd
= qemu_open(mount
->dirname
, O_RDONLY
);
1261 error_setg_errno(errp
, errno
, "failed to open %s", mount
->dirname
);
1265 /* we try to cull filesystems we know won't work in advance, but other
1266 * filesystems may not implement fsfreeze for less obvious reasons.
1267 * these will report EOPNOTSUPP. we simply ignore these when tallying
1268 * the number of frozen filesystems.
1269 * if a filesystem is mounted more than once (aka bind mount) a
1270 * consecutive attempt to freeze an already frozen filesystem will
1273 * any other error means a failure to freeze a filesystem we
1274 * expect to be freezable, so return an error in those cases
1275 * and return system to thawed state.
1277 ret
= ioctl(fd
, FIFREEZE
);
1279 if (errno
!= EOPNOTSUPP
&& errno
!= EBUSY
) {
1280 error_setg_errno(errp
, errno
, "failed to freeze %s",
1291 free_fs_mount_list(&mounts
);
1292 /* We may not issue any FIFREEZE here.
1293 * Just unset ga_state here and ready for the next call.
1296 ga_unset_frozen(ga_state
);
1301 free_fs_mount_list(&mounts
);
1302 qmp_guest_fsfreeze_thaw(NULL
);
1307 * Walk list of frozen file systems in the guest, and thaw them.
1309 int64_t qmp_guest_fsfreeze_thaw(Error
**errp
)
1314 int fd
, i
= 0, logged
;
1315 Error
*local_err
= NULL
;
1317 QTAILQ_INIT(&mounts
);
1318 build_fs_mount_list(&mounts
, &local_err
);
1320 error_propagate(errp
, local_err
);
1324 QTAILQ_FOREACH(mount
, &mounts
, next
) {
1326 fd
= qemu_open(mount
->dirname
, O_RDONLY
);
1330 /* we have no way of knowing whether a filesystem was actually unfrozen
1331 * as a result of a successful call to FITHAW, only that if an error
1332 * was returned the filesystem was *not* unfrozen by that particular
1335 * since multiple preceding FIFREEZEs require multiple calls to FITHAW
1336 * to unfreeze, continuing issuing FITHAW until an error is returned,
1337 * in which case either the filesystem is in an unfreezable state, or,
1338 * more likely, it was thawed previously (and remains so afterward).
1340 * also, since the most recent successful call is the one that did
1341 * the actual unfreeze, we can use this to provide an accurate count
1342 * of the number of filesystems unfrozen by guest-fsfreeze-thaw, which
1343 * may * be useful for determining whether a filesystem was unfrozen
1344 * during the freeze/thaw phase by a process other than qemu-ga.
1347 ret
= ioctl(fd
, FITHAW
);
1348 if (ret
== 0 && !logged
) {
1356 ga_unset_frozen(ga_state
);
1357 free_fs_mount_list(&mounts
);
1359 execute_fsfreeze_hook(FSFREEZE_HOOK_THAW
, errp
);
1364 static void guest_fsfreeze_cleanup(void)
1368 if (ga_is_frozen(ga_state
) == GUEST_FSFREEZE_STATUS_FROZEN
) {
1369 qmp_guest_fsfreeze_thaw(&err
);
1371 slog("failed to clean up frozen filesystems: %s",
1372 error_get_pretty(err
));
1377 #endif /* CONFIG_FSFREEZE */
1379 #if defined(CONFIG_FSTRIM)
1381 * Walk list of mounted file systems in the guest, and trim them.
1383 GuestFilesystemTrimResponse
*
1384 qmp_guest_fstrim(bool has_minimum
, int64_t minimum
, Error
**errp
)
1386 GuestFilesystemTrimResponse
*response
;
1387 GuestFilesystemTrimResultList
*list
;
1388 GuestFilesystemTrimResult
*result
;
1391 struct FsMount
*mount
;
1393 Error
*local_err
= NULL
;
1394 struct fstrim_range r
;
1396 slog("guest-fstrim called");
1398 QTAILQ_INIT(&mounts
);
1399 build_fs_mount_list(&mounts
, &local_err
);
1401 error_propagate(errp
, local_err
);
1405 response
= g_malloc0(sizeof(*response
));
1407 QTAILQ_FOREACH(mount
, &mounts
, next
) {
1408 result
= g_malloc0(sizeof(*result
));
1409 result
->path
= g_strdup(mount
->dirname
);
1411 list
= g_malloc0(sizeof(*list
));
1412 list
->value
= result
;
1413 list
->next
= response
->paths
;
1414 response
->paths
= list
;
1416 fd
= qemu_open(mount
->dirname
, O_RDONLY
);
1418 result
->error
= g_strdup_printf("failed to open: %s",
1420 result
->has_error
= true;
1424 /* We try to cull filesystems we know won't work in advance, but other
1425 * filesystems may not implement fstrim for less obvious reasons.
1426 * These will report EOPNOTSUPP; while in some other cases ENOTTY
1427 * will be reported (e.g. CD-ROMs).
1428 * Any other error means an unexpected error.
1432 r
.minlen
= has_minimum
? minimum
: 0;
1433 ret
= ioctl(fd
, FITRIM
, &r
);
1435 result
->has_error
= true;
1436 if (errno
== ENOTTY
|| errno
== EOPNOTSUPP
) {
1437 result
->error
= g_strdup("trim not supported");
1439 result
->error
= g_strdup_printf("failed to trim: %s",
1446 result
->has_minimum
= true;
1447 result
->minimum
= r
.minlen
;
1448 result
->has_trimmed
= true;
1449 result
->trimmed
= r
.len
;
1453 free_fs_mount_list(&mounts
);
1456 #endif /* CONFIG_FSTRIM */
1459 #define LINUX_SYS_STATE_FILE "/sys/power/state"
1460 #define SUSPEND_SUPPORTED 0
1461 #define SUSPEND_NOT_SUPPORTED 1
1463 static void bios_supports_mode(const char *pmutils_bin
, const char *pmutils_arg
,
1464 const char *sysfile_str
, Error
**errp
)
1466 Error
*local_err
= NULL
;
1471 pmutils_path
= g_find_program_in_path(pmutils_bin
);
1475 char buf
[32]; /* hopefully big enough */
1480 reopen_fd_to_null(0);
1481 reopen_fd_to_null(1);
1482 reopen_fd_to_null(2);
1485 execle(pmutils_path
, pmutils_bin
, pmutils_arg
, NULL
, environ
);
1489 * If we get here either pm-utils is not installed or execle() has
1490 * failed. Let's try the manual method if the caller wants it.
1494 _exit(SUSPEND_NOT_SUPPORTED
);
1497 fd
= open(LINUX_SYS_STATE_FILE
, O_RDONLY
);
1499 _exit(SUSPEND_NOT_SUPPORTED
);
1502 ret
= read(fd
, buf
, sizeof(buf
)-1);
1504 _exit(SUSPEND_NOT_SUPPORTED
);
1508 if (strstr(buf
, sysfile_str
)) {
1509 _exit(SUSPEND_SUPPORTED
);
1512 _exit(SUSPEND_NOT_SUPPORTED
);
1513 } else if (pid
< 0) {
1514 error_setg_errno(errp
, errno
, "failed to create child process");
1518 ga_wait_child(pid
, &status
, &local_err
);
1520 error_propagate(errp
, local_err
);
1524 if (!WIFEXITED(status
)) {
1525 error_setg(errp
, "child process has terminated abnormally");
1529 switch (WEXITSTATUS(status
)) {
1530 case SUSPEND_SUPPORTED
:
1532 case SUSPEND_NOT_SUPPORTED
:
1534 "the requested suspend mode is not supported by the guest");
1538 "the helper program '%s' returned an unexpected exit status"
1539 " code (%d)", pmutils_path
, WEXITSTATUS(status
));
1544 g_free(pmutils_path
);
1547 static void guest_suspend(const char *pmutils_bin
, const char *sysfile_str
,
1550 Error
*local_err
= NULL
;
1555 pmutils_path
= g_find_program_in_path(pmutils_bin
);
1563 reopen_fd_to_null(0);
1564 reopen_fd_to_null(1);
1565 reopen_fd_to_null(2);
1568 execle(pmutils_path
, pmutils_bin
, NULL
, environ
);
1572 * If we get here either pm-utils is not installed or execle() has
1573 * failed. Let's try the manual method if the caller wants it.
1577 _exit(EXIT_FAILURE
);
1580 fd
= open(LINUX_SYS_STATE_FILE
, O_WRONLY
);
1582 _exit(EXIT_FAILURE
);
1585 if (write(fd
, sysfile_str
, strlen(sysfile_str
)) < 0) {
1586 _exit(EXIT_FAILURE
);
1589 _exit(EXIT_SUCCESS
);
1590 } else if (pid
< 0) {
1591 error_setg_errno(errp
, errno
, "failed to create child process");
1595 ga_wait_child(pid
, &status
, &local_err
);
1597 error_propagate(errp
, local_err
);
1601 if (!WIFEXITED(status
)) {
1602 error_setg(errp
, "child process has terminated abnormally");
1606 if (WEXITSTATUS(status
)) {
1607 error_setg(errp
, "child process has failed to suspend");
1612 g_free(pmutils_path
);
1615 void qmp_guest_suspend_disk(Error
**errp
)
1617 Error
*local_err
= NULL
;
1619 bios_supports_mode("pm-is-supported", "--hibernate", "disk", &local_err
);
1621 error_propagate(errp
, local_err
);
1625 guest_suspend("pm-hibernate", "disk", errp
);
1628 void qmp_guest_suspend_ram(Error
**errp
)
1630 Error
*local_err
= NULL
;
1632 bios_supports_mode("pm-is-supported", "--suspend", "mem", &local_err
);
1634 error_propagate(errp
, local_err
);
1638 guest_suspend("pm-suspend", "mem", errp
);
1641 void qmp_guest_suspend_hybrid(Error
**errp
)
1643 Error
*local_err
= NULL
;
1645 bios_supports_mode("pm-is-supported", "--suspend-hybrid", NULL
,
1648 error_propagate(errp
, local_err
);
1652 guest_suspend("pm-suspend-hybrid", NULL
, errp
);
1655 static GuestNetworkInterfaceList
*
1656 guest_find_interface(GuestNetworkInterfaceList
*head
,
1659 for (; head
; head
= head
->next
) {
1660 if (strcmp(head
->value
->name
, name
) == 0) {
1668 static int guest_get_network_stats(const char *name
,
1669 GuestNetworkInterfaceStat
*stats
)
1672 char const *devinfo
= "/proc/net/dev";
1674 char *line
= NULL
, *colon
;
1676 fp
= fopen(devinfo
, "r");
1680 name_len
= strlen(name
);
1681 while (getline(&line
, &n
, fp
) != -1) {
1684 long long rx_packets
;
1686 long long rx_dropped
;
1688 long long tx_packets
;
1690 long long tx_dropped
;
1692 trim_line
= g_strchug(line
);
1693 if (trim_line
[0] == '\0') {
1696 colon
= strchr(trim_line
, ':');
1700 if (colon
- name_len
== trim_line
&&
1701 strncmp(trim_line
, name
, name_len
) == 0) {
1702 if (sscanf(colon
+ 1,
1703 "%lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld",
1704 &rx_bytes
, &rx_packets
, &rx_errs
, &rx_dropped
,
1705 &dummy
, &dummy
, &dummy
, &dummy
,
1706 &tx_bytes
, &tx_packets
, &tx_errs
, &tx_dropped
,
1707 &dummy
, &dummy
, &dummy
, &dummy
) != 16) {
1710 stats
->rx_bytes
= rx_bytes
;
1711 stats
->rx_packets
= rx_packets
;
1712 stats
->rx_errs
= rx_errs
;
1713 stats
->rx_dropped
= rx_dropped
;
1714 stats
->tx_bytes
= tx_bytes
;
1715 stats
->tx_packets
= tx_packets
;
1716 stats
->tx_errs
= tx_errs
;
1717 stats
->tx_dropped
= tx_dropped
;
1725 g_debug("/proc/net/dev: Interface '%s' not found", name
);
1730 * Build information about guest interfaces
1732 GuestNetworkInterfaceList
*qmp_guest_network_get_interfaces(Error
**errp
)
1734 GuestNetworkInterfaceList
*head
= NULL
, *cur_item
= NULL
;
1735 struct ifaddrs
*ifap
, *ifa
;
1737 if (getifaddrs(&ifap
) < 0) {
1738 error_setg_errno(errp
, errno
, "getifaddrs failed");
1742 for (ifa
= ifap
; ifa
; ifa
= ifa
->ifa_next
) {
1743 GuestNetworkInterfaceList
*info
;
1744 GuestIpAddressList
**address_list
= NULL
, *address_item
= NULL
;
1745 GuestNetworkInterfaceStat
*interface_stat
= NULL
;
1746 char addr4
[INET_ADDRSTRLEN
];
1747 char addr6
[INET6_ADDRSTRLEN
];
1750 unsigned char *mac_addr
;
1753 g_debug("Processing %s interface", ifa
->ifa_name
);
1755 info
= guest_find_interface(head
, ifa
->ifa_name
);
1758 info
= g_malloc0(sizeof(*info
));
1759 info
->value
= g_malloc0(sizeof(*info
->value
));
1760 info
->value
->name
= g_strdup(ifa
->ifa_name
);
1763 head
= cur_item
= info
;
1765 cur_item
->next
= info
;
1770 if (!info
->value
->has_hardware_address
&&
1771 ifa
->ifa_flags
& SIOCGIFHWADDR
) {
1772 /* we haven't obtained HW address yet */
1773 sock
= socket(PF_INET
, SOCK_STREAM
, 0);
1775 error_setg_errno(errp
, errno
, "failed to create socket");
1779 memset(&ifr
, 0, sizeof(ifr
));
1780 pstrcpy(ifr
.ifr_name
, IF_NAMESIZE
, info
->value
->name
);
1781 if (ioctl(sock
, SIOCGIFHWADDR
, &ifr
) == -1) {
1782 error_setg_errno(errp
, errno
,
1783 "failed to get MAC address of %s",
1790 mac_addr
= (unsigned char *) &ifr
.ifr_hwaddr
.sa_data
;
1792 info
->value
->hardware_address
=
1793 g_strdup_printf("%02x:%02x:%02x:%02x:%02x:%02x",
1794 (int) mac_addr
[0], (int) mac_addr
[1],
1795 (int) mac_addr
[2], (int) mac_addr
[3],
1796 (int) mac_addr
[4], (int) mac_addr
[5]);
1798 info
->value
->has_hardware_address
= true;
1801 if (ifa
->ifa_addr
&&
1802 ifa
->ifa_addr
->sa_family
== AF_INET
) {
1803 /* interface with IPv4 address */
1804 p
= &((struct sockaddr_in
*)ifa
->ifa_addr
)->sin_addr
;
1805 if (!inet_ntop(AF_INET
, p
, addr4
, sizeof(addr4
))) {
1806 error_setg_errno(errp
, errno
, "inet_ntop failed");
1810 address_item
= g_malloc0(sizeof(*address_item
));
1811 address_item
->value
= g_malloc0(sizeof(*address_item
->value
));
1812 address_item
->value
->ip_address
= g_strdup(addr4
);
1813 address_item
->value
->ip_address_type
= GUEST_IP_ADDRESS_TYPE_IPV4
;
1815 if (ifa
->ifa_netmask
) {
1816 /* Count the number of set bits in netmask.
1817 * This is safe as '1' and '0' cannot be shuffled in netmask. */
1818 p
= &((struct sockaddr_in
*)ifa
->ifa_netmask
)->sin_addr
;
1819 address_item
->value
->prefix
= ctpop32(((uint32_t *) p
)[0]);
1821 } else if (ifa
->ifa_addr
&&
1822 ifa
->ifa_addr
->sa_family
== AF_INET6
) {
1823 /* interface with IPv6 address */
1824 p
= &((struct sockaddr_in6
*)ifa
->ifa_addr
)->sin6_addr
;
1825 if (!inet_ntop(AF_INET6
, p
, addr6
, sizeof(addr6
))) {
1826 error_setg_errno(errp
, errno
, "inet_ntop failed");
1830 address_item
= g_malloc0(sizeof(*address_item
));
1831 address_item
->value
= g_malloc0(sizeof(*address_item
->value
));
1832 address_item
->value
->ip_address
= g_strdup(addr6
);
1833 address_item
->value
->ip_address_type
= GUEST_IP_ADDRESS_TYPE_IPV6
;
1835 if (ifa
->ifa_netmask
) {
1836 /* Count the number of set bits in netmask.
1837 * This is safe as '1' and '0' cannot be shuffled in netmask. */
1838 p
= &((struct sockaddr_in6
*)ifa
->ifa_netmask
)->sin6_addr
;
1839 address_item
->value
->prefix
=
1840 ctpop32(((uint32_t *) p
)[0]) +
1841 ctpop32(((uint32_t *) p
)[1]) +
1842 ctpop32(((uint32_t *) p
)[2]) +
1843 ctpop32(((uint32_t *) p
)[3]);
1847 if (!address_item
) {
1851 address_list
= &info
->value
->ip_addresses
;
1853 while (*address_list
&& (*address_list
)->next
) {
1854 address_list
= &(*address_list
)->next
;
1857 if (!*address_list
) {
1858 *address_list
= address_item
;
1860 (*address_list
)->next
= address_item
;
1863 info
->value
->has_ip_addresses
= true;
1865 if (!info
->value
->has_statistics
) {
1866 interface_stat
= g_malloc0(sizeof(*interface_stat
));
1867 if (guest_get_network_stats(info
->value
->name
,
1868 interface_stat
) == -1) {
1869 info
->value
->has_statistics
= false;
1870 g_free(interface_stat
);
1872 info
->value
->statistics
= interface_stat
;
1873 info
->value
->has_statistics
= true;
1883 qapi_free_GuestNetworkInterfaceList(head
);
1887 #define SYSCONF_EXACT(name, errp) sysconf_exact((name), #name, (errp))
1889 static long sysconf_exact(int name
, const char *name_str
, Error
**errp
)
1894 ret
= sysconf(name
);
1897 error_setg(errp
, "sysconf(%s): value indefinite", name_str
);
1899 error_setg_errno(errp
, errno
, "sysconf(%s)", name_str
);
1905 /* Transfer online/offline status between @vcpu and the guest system.
1907 * On input either @errp or *@errp must be NULL.
1909 * In system-to-@vcpu direction, the following @vcpu fields are accessed:
1910 * - R: vcpu->logical_id
1912 * - W: vcpu->can_offline
1914 * In @vcpu-to-system direction, the following @vcpu fields are accessed:
1915 * - R: vcpu->logical_id
1918 * Written members remain unmodified on error.
1920 static void transfer_vcpu(GuestLogicalProcessor
*vcpu
, bool sys2vcpu
,
1926 dirpath
= g_strdup_printf("/sys/devices/system/cpu/cpu%" PRId64
"/",
1928 dirfd
= open(dirpath
, O_RDONLY
| O_DIRECTORY
);
1930 error_setg_errno(errp
, errno
, "open(\"%s\")", dirpath
);
1932 static const char fn
[] = "online";
1936 fd
= openat(dirfd
, fn
, sys2vcpu
? O_RDONLY
: O_RDWR
);
1938 if (errno
!= ENOENT
) {
1939 error_setg_errno(errp
, errno
, "open(\"%s/%s\")", dirpath
, fn
);
1940 } else if (sys2vcpu
) {
1941 vcpu
->online
= true;
1942 vcpu
->can_offline
= false;
1943 } else if (!vcpu
->online
) {
1944 error_setg(errp
, "logical processor #%" PRId64
" can't be "
1945 "offlined", vcpu
->logical_id
);
1946 } /* otherwise pretend successful re-onlining */
1948 unsigned char status
;
1950 res
= pread(fd
, &status
, 1, 0);
1952 error_setg_errno(errp
, errno
, "pread(\"%s/%s\")", dirpath
, fn
);
1953 } else if (res
== 0) {
1954 error_setg(errp
, "pread(\"%s/%s\"): unexpected EOF", dirpath
,
1956 } else if (sys2vcpu
) {
1957 vcpu
->online
= (status
!= '0');
1958 vcpu
->can_offline
= true;
1959 } else if (vcpu
->online
!= (status
!= '0')) {
1960 status
= '0' + vcpu
->online
;
1961 if (pwrite(fd
, &status
, 1, 0) == -1) {
1962 error_setg_errno(errp
, errno
, "pwrite(\"%s/%s\")", dirpath
,
1965 } /* otherwise pretend successful re-(on|off)-lining */
1978 GuestLogicalProcessorList
*qmp_guest_get_vcpus(Error
**errp
)
1981 GuestLogicalProcessorList
*head
, **link
;
1983 Error
*local_err
= NULL
;
1988 sc_max
= SYSCONF_EXACT(_SC_NPROCESSORS_CONF
, &local_err
);
1990 while (local_err
== NULL
&& current
< sc_max
) {
1991 GuestLogicalProcessor
*vcpu
;
1992 GuestLogicalProcessorList
*entry
;
1994 vcpu
= g_malloc0(sizeof *vcpu
);
1995 vcpu
->logical_id
= current
++;
1996 vcpu
->has_can_offline
= true; /* lolspeak ftw */
1997 transfer_vcpu(vcpu
, true, &local_err
);
1999 entry
= g_malloc0(sizeof *entry
);
2000 entry
->value
= vcpu
;
2003 link
= &entry
->next
;
2006 if (local_err
== NULL
) {
2007 /* there's no guest with zero VCPUs */
2008 g_assert(head
!= NULL
);
2012 qapi_free_GuestLogicalProcessorList(head
);
2013 error_propagate(errp
, local_err
);
2017 int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList
*vcpus
, Error
**errp
)
2020 Error
*local_err
= NULL
;
2023 while (vcpus
!= NULL
) {
2024 transfer_vcpu(vcpus
->value
, false, &local_err
);
2025 if (local_err
!= NULL
) {
2029 vcpus
= vcpus
->next
;
2032 if (local_err
!= NULL
) {
2033 if (processed
== 0) {
2034 error_propagate(errp
, local_err
);
2036 error_free(local_err
);
2043 void qmp_guest_set_user_password(const char *username
,
2044 const char *password
,
2048 Error
*local_err
= NULL
;
2049 char *passwd_path
= NULL
;
2052 int datafd
[2] = { -1, -1 };
2053 char *rawpasswddata
= NULL
;
2054 size_t rawpasswdlen
;
2055 char *chpasswddata
= NULL
;
2058 rawpasswddata
= (char *)qbase64_decode(password
, -1, &rawpasswdlen
, errp
);
2059 if (!rawpasswddata
) {
2062 rawpasswddata
= g_renew(char, rawpasswddata
, rawpasswdlen
+ 1);
2063 rawpasswddata
[rawpasswdlen
] = '\0';
2065 if (strchr(rawpasswddata
, '\n')) {
2066 error_setg(errp
, "forbidden characters in raw password");
2070 if (strchr(username
, '\n') ||
2071 strchr(username
, ':')) {
2072 error_setg(errp
, "forbidden characters in username");
2076 chpasswddata
= g_strdup_printf("%s:%s\n", username
, rawpasswddata
);
2077 chpasswdlen
= strlen(chpasswddata
);
2079 passwd_path
= g_find_program_in_path("chpasswd");
2082 error_setg(errp
, "cannot find 'passwd' program in PATH");
2086 if (pipe(datafd
) < 0) {
2087 error_setg(errp
, "cannot create pipe FDs");
2097 reopen_fd_to_null(1);
2098 reopen_fd_to_null(2);
2101 execle(passwd_path
, "chpasswd", "-e", NULL
, environ
);
2103 execle(passwd_path
, "chpasswd", NULL
, environ
);
2105 _exit(EXIT_FAILURE
);
2106 } else if (pid
< 0) {
2107 error_setg_errno(errp
, errno
, "failed to create child process");
2113 if (qemu_write_full(datafd
[1], chpasswddata
, chpasswdlen
) != chpasswdlen
) {
2114 error_setg_errno(errp
, errno
, "cannot write new account password");
2120 ga_wait_child(pid
, &status
, &local_err
);
2122 error_propagate(errp
, local_err
);
2126 if (!WIFEXITED(status
)) {
2127 error_setg(errp
, "child process has terminated abnormally");
2131 if (WEXITSTATUS(status
)) {
2132 error_setg(errp
, "child process has failed to set user password");
2137 g_free(chpasswddata
);
2138 g_free(rawpasswddata
);
2139 g_free(passwd_path
);
2140 if (datafd
[0] != -1) {
2143 if (datafd
[1] != -1) {
2148 static void ga_read_sysfs_file(int dirfd
, const char *pathname
, char *buf
,
2149 int size
, Error
**errp
)
2155 fd
= openat(dirfd
, pathname
, O_RDONLY
);
2157 error_setg_errno(errp
, errno
, "open sysfs file \"%s\"", pathname
);
2161 res
= pread(fd
, buf
, size
, 0);
2163 error_setg_errno(errp
, errno
, "pread sysfs file \"%s\"", pathname
);
2164 } else if (res
== 0) {
2165 error_setg(errp
, "pread sysfs file \"%s\": unexpected EOF", pathname
);
2170 static void ga_write_sysfs_file(int dirfd
, const char *pathname
,
2171 const char *buf
, int size
, Error
**errp
)
2176 fd
= openat(dirfd
, pathname
, O_WRONLY
);
2178 error_setg_errno(errp
, errno
, "open sysfs file \"%s\"", pathname
);
2182 if (pwrite(fd
, buf
, size
, 0) == -1) {
2183 error_setg_errno(errp
, errno
, "pwrite sysfs file \"%s\"", pathname
);
2189 /* Transfer online/offline status between @mem_blk and the guest system.
2191 * On input either @errp or *@errp must be NULL.
2193 * In system-to-@mem_blk direction, the following @mem_blk fields are accessed:
2194 * - R: mem_blk->phys_index
2195 * - W: mem_blk->online
2196 * - W: mem_blk->can_offline
2198 * In @mem_blk-to-system direction, the following @mem_blk fields are accessed:
2199 * - R: mem_blk->phys_index
2200 * - R: mem_blk->online
2201 *- R: mem_blk->can_offline
2202 * Written members remain unmodified on error.
2204 static void transfer_memory_block(GuestMemoryBlock
*mem_blk
, bool sys2memblk
,
2205 GuestMemoryBlockResponse
*result
,
2211 Error
*local_err
= NULL
;
2217 error_setg(errp
, "Internal error, 'result' should not be NULL");
2221 dp
= opendir("/sys/devices/system/memory/");
2222 /* if there is no 'memory' directory in sysfs,
2223 * we think this VM does not support online/offline memory block,
2224 * any other solution?
2227 if (errno
== ENOENT
) {
2229 GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_NOT_SUPPORTED
;
2236 dirpath
= g_strdup_printf("/sys/devices/system/memory/memory%" PRId64
"/",
2237 mem_blk
->phys_index
);
2238 dirfd
= open(dirpath
, O_RDONLY
| O_DIRECTORY
);
2241 error_setg_errno(errp
, errno
, "open(\"%s\")", dirpath
);
2243 if (errno
== ENOENT
) {
2244 result
->response
= GUEST_MEMORY_BLOCK_RESPONSE_TYPE_NOT_FOUND
;
2247 GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_FAILED
;
2255 status
= g_malloc0(10);
2256 ga_read_sysfs_file(dirfd
, "state", status
, 10, &local_err
);
2258 /* treat with sysfs file that not exist in old kernel */
2259 if (errno
== ENOENT
) {
2260 error_free(local_err
);
2262 mem_blk
->online
= true;
2263 mem_blk
->can_offline
= false;
2264 } else if (!mem_blk
->online
) {
2266 GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_NOT_SUPPORTED
;
2270 error_propagate(errp
, local_err
);
2273 GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_FAILED
;
2280 char removable
= '0';
2282 mem_blk
->online
= (strncmp(status
, "online", 6) == 0);
2284 ga_read_sysfs_file(dirfd
, "removable", &removable
, 1, &local_err
);
2286 /* if no 'removable' file, it doesn't support offline mem blk */
2287 if (errno
== ENOENT
) {
2288 error_free(local_err
);
2289 mem_blk
->can_offline
= false;
2291 error_propagate(errp
, local_err
);
2294 mem_blk
->can_offline
= (removable
!= '0');
2297 if (mem_blk
->online
!= (strncmp(status
, "online", 6) == 0)) {
2298 const char *new_state
= mem_blk
->online
? "online" : "offline";
2300 ga_write_sysfs_file(dirfd
, "state", new_state
, strlen(new_state
),
2303 error_free(local_err
);
2305 GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_FAILED
;
2309 result
->response
= GUEST_MEMORY_BLOCK_RESPONSE_TYPE_SUCCESS
;
2310 result
->has_error_code
= false;
2311 } /* otherwise pretend successful re-(on|off)-lining */
2322 result
->has_error_code
= true;
2323 result
->error_code
= errno
;
2327 GuestMemoryBlockList
*qmp_guest_get_memory_blocks(Error
**errp
)
2329 GuestMemoryBlockList
*head
, **link
;
2330 Error
*local_err
= NULL
;
2337 dp
= opendir("/sys/devices/system/memory/");
2339 /* it's ok if this happens to be a system that doesn't expose
2340 * memory blocks via sysfs, but otherwise we should report
2343 if (errno
!= ENOENT
) {
2344 error_setg_errno(errp
, errno
, "Can't open directory"
2345 "\"/sys/devices/system/memory/\"");
2350 /* Note: the phys_index of memory block may be discontinuous,
2351 * this is because a memblk is the unit of the Sparse Memory design, which
2352 * allows discontinuous memory ranges (ex. NUMA), so here we should
2353 * traverse the memory block directory.
2355 while ((de
= readdir(dp
)) != NULL
) {
2356 GuestMemoryBlock
*mem_blk
;
2357 GuestMemoryBlockList
*entry
;
2359 if ((strncmp(de
->d_name
, "memory", 6) != 0) ||
2360 !(de
->d_type
& DT_DIR
)) {
2364 mem_blk
= g_malloc0(sizeof *mem_blk
);
2365 /* The d_name is "memoryXXX", phys_index is block id, same as XXX */
2366 mem_blk
->phys_index
= strtoul(&de
->d_name
[6], NULL
, 10);
2367 mem_blk
->has_can_offline
= true; /* lolspeak ftw */
2368 transfer_memory_block(mem_blk
, true, NULL
, &local_err
);
2370 entry
= g_malloc0(sizeof *entry
);
2371 entry
->value
= mem_blk
;
2374 link
= &entry
->next
;
2378 if (local_err
== NULL
) {
2379 /* there's no guest with zero memory blocks */
2381 error_setg(errp
, "guest reported zero memory blocks!");
2386 qapi_free_GuestMemoryBlockList(head
);
2387 error_propagate(errp
, local_err
);
2391 GuestMemoryBlockResponseList
*
2392 qmp_guest_set_memory_blocks(GuestMemoryBlockList
*mem_blks
, Error
**errp
)
2394 GuestMemoryBlockResponseList
*head
, **link
;
2395 Error
*local_err
= NULL
;
2400 while (mem_blks
!= NULL
) {
2401 GuestMemoryBlockResponse
*result
;
2402 GuestMemoryBlockResponseList
*entry
;
2403 GuestMemoryBlock
*current_mem_blk
= mem_blks
->value
;
2405 result
= g_malloc0(sizeof(*result
));
2406 result
->phys_index
= current_mem_blk
->phys_index
;
2407 transfer_memory_block(current_mem_blk
, false, result
, &local_err
);
2408 if (local_err
) { /* should never happen */
2411 entry
= g_malloc0(sizeof *entry
);
2412 entry
->value
= result
;
2415 link
= &entry
->next
;
2416 mem_blks
= mem_blks
->next
;
2421 qapi_free_GuestMemoryBlockResponseList(head
);
2422 error_propagate(errp
, local_err
);
2426 GuestMemoryBlockInfo
*qmp_guest_get_memory_block_info(Error
**errp
)
2428 Error
*local_err
= NULL
;
2432 GuestMemoryBlockInfo
*info
;
2434 dirpath
= g_strdup_printf("/sys/devices/system/memory/");
2435 dirfd
= open(dirpath
, O_RDONLY
| O_DIRECTORY
);
2437 error_setg_errno(errp
, errno
, "open(\"%s\")", dirpath
);
2443 buf
= g_malloc0(20);
2444 ga_read_sysfs_file(dirfd
, "block_size_bytes", buf
, 20, &local_err
);
2448 error_propagate(errp
, local_err
);
2452 info
= g_new0(GuestMemoryBlockInfo
, 1);
2453 info
->size
= strtol(buf
, NULL
, 16); /* the unit is bytes */
2460 #else /* defined(__linux__) */
2462 void qmp_guest_suspend_disk(Error
**errp
)
2464 error_setg(errp
, QERR_UNSUPPORTED
);
2467 void qmp_guest_suspend_ram(Error
**errp
)
2469 error_setg(errp
, QERR_UNSUPPORTED
);
2472 void qmp_guest_suspend_hybrid(Error
**errp
)
2474 error_setg(errp
, QERR_UNSUPPORTED
);
2477 GuestNetworkInterfaceList
*qmp_guest_network_get_interfaces(Error
**errp
)
2479 error_setg(errp
, QERR_UNSUPPORTED
);
2483 GuestLogicalProcessorList
*qmp_guest_get_vcpus(Error
**errp
)
2485 error_setg(errp
, QERR_UNSUPPORTED
);
2489 int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList
*vcpus
, Error
**errp
)
2491 error_setg(errp
, QERR_UNSUPPORTED
);
2495 void qmp_guest_set_user_password(const char *username
,
2496 const char *password
,
2500 error_setg(errp
, QERR_UNSUPPORTED
);
2503 GuestMemoryBlockList
*qmp_guest_get_memory_blocks(Error
**errp
)
2505 error_setg(errp
, QERR_UNSUPPORTED
);
2509 GuestMemoryBlockResponseList
*
2510 qmp_guest_set_memory_blocks(GuestMemoryBlockList
*mem_blks
, Error
**errp
)
2512 error_setg(errp
, QERR_UNSUPPORTED
);
2516 GuestMemoryBlockInfo
*qmp_guest_get_memory_block_info(Error
**errp
)
2518 error_setg(errp
, QERR_UNSUPPORTED
);
2524 #if !defined(CONFIG_FSFREEZE)
2526 GuestFilesystemInfoList
*qmp_guest_get_fsinfo(Error
**errp
)
2528 error_setg(errp
, QERR_UNSUPPORTED
);
2532 GuestFsfreezeStatus
qmp_guest_fsfreeze_status(Error
**errp
)
2534 error_setg(errp
, QERR_UNSUPPORTED
);
2539 int64_t qmp_guest_fsfreeze_freeze(Error
**errp
)
2541 error_setg(errp
, QERR_UNSUPPORTED
);
2546 int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints
,
2547 strList
*mountpoints
,
2550 error_setg(errp
, QERR_UNSUPPORTED
);
2555 int64_t qmp_guest_fsfreeze_thaw(Error
**errp
)
2557 error_setg(errp
, QERR_UNSUPPORTED
);
2561 #endif /* CONFIG_FSFREEZE */
2563 #if !defined(CONFIG_FSTRIM)
2564 GuestFilesystemTrimResponse
*
2565 qmp_guest_fstrim(bool has_minimum
, int64_t minimum
, Error
**errp
)
2567 error_setg(errp
, QERR_UNSUPPORTED
);
2572 /* add unsupported commands to the blacklist */
2573 GList
*ga_command_blacklist_init(GList
*blacklist
)
2575 #if !defined(__linux__)
2577 const char *list
[] = {
2578 "guest-suspend-disk", "guest-suspend-ram",
2579 "guest-suspend-hybrid", "guest-network-get-interfaces",
2580 "guest-get-vcpus", "guest-set-vcpus",
2581 "guest-get-memory-blocks", "guest-set-memory-blocks",
2582 "guest-get-memory-block-size", NULL
};
2583 char **p
= (char **)list
;
2586 blacklist
= g_list_append(blacklist
, g_strdup(*p
++));
2591 #if !defined(CONFIG_FSFREEZE)
2593 const char *list
[] = {
2594 "guest-get-fsinfo", "guest-fsfreeze-status",
2595 "guest-fsfreeze-freeze", "guest-fsfreeze-freeze-list",
2596 "guest-fsfreeze-thaw", "guest-get-fsinfo", NULL
};
2597 char **p
= (char **)list
;
2600 blacklist
= g_list_append(blacklist
, g_strdup(*p
++));
2605 #if !defined(CONFIG_FSTRIM)
2606 blacklist
= g_list_append(blacklist
, g_strdup("guest-fstrim"));
2612 /* register init/cleanup routines for stateful command groups */
2613 void ga_command_state_init(GAState
*s
, GACommandState
*cs
)
2615 #if defined(CONFIG_FSFREEZE)
2616 ga_command_state_add(cs
, NULL
, guest_fsfreeze_cleanup
);
2622 #define QGA_MICRO_SECOND_TO_SECOND 1000000
2624 static double ga_get_login_time(struct utmpx
*user_info
)
2626 double seconds
= (double)user_info
->ut_tv
.tv_sec
;
2627 double useconds
= (double)user_info
->ut_tv
.tv_usec
;
2628 useconds
/= QGA_MICRO_SECOND_TO_SECOND
;
2629 return seconds
+ useconds
;
2632 GuestUserList
*qmp_guest_get_users(Error
**err
)
2634 GHashTable
*cache
= NULL
;
2635 GuestUserList
*head
= NULL
, *cur_item
= NULL
;
2636 struct utmpx
*user_info
= NULL
;
2637 gpointer value
= NULL
;
2638 GuestUser
*user
= NULL
;
2639 GuestUserList
*item
= NULL
;
2640 double login_time
= 0;
2642 cache
= g_hash_table_new(g_str_hash
, g_str_equal
);
2646 user_info
= getutxent();
2647 if (user_info
== NULL
) {
2649 } else if (user_info
->ut_type
!= USER_PROCESS
) {
2651 } else if (g_hash_table_contains(cache
, user_info
->ut_user
)) {
2652 value
= g_hash_table_lookup(cache
, user_info
->ut_user
);
2653 user
= (GuestUser
*)value
;
2654 login_time
= ga_get_login_time(user_info
);
2655 /* We're ensuring the earliest login time to be sent */
2656 if (login_time
< user
->login_time
) {
2657 user
->login_time
= login_time
;
2662 item
= g_new0(GuestUserList
, 1);
2663 item
->value
= g_new0(GuestUser
, 1);
2664 item
->value
->user
= g_strdup(user_info
->ut_user
);
2665 item
->value
->login_time
= ga_get_login_time(user_info
);
2667 g_hash_table_insert(cache
, item
->value
->user
, item
->value
);
2670 head
= cur_item
= item
;
2672 cur_item
->next
= item
;
2677 g_hash_table_destroy(cache
);
2683 GuestUserList
*qmp_guest_get_users(Error
**errp
)
2685 error_setg(errp
, QERR_UNSUPPORTED
);
2691 /* Replace escaped special characters with theire real values. The replacement
2692 * is done in place -- returned value is in the original string.
2694 static void ga_osrelease_replace_special(gchar
*value
)
2696 gchar
*p
, *p2
, quote
;
2698 /* Trim the string at first space or semicolon if it is not enclosed in
2699 * single or double quotes. */
2700 if ((value
[0] != '"') || (value
[0] == '\'')) {
2701 p
= strchr(value
, ' ');
2705 p
= strchr(value
, ';');
2726 /* Keep literal backslash followed by whatever is there */
2730 } else if (*p
== quote
) {
2738 static GKeyFile
*ga_parse_osrelease(const char *fname
)
2740 gchar
*content
= NULL
;
2741 gchar
*content2
= NULL
;
2743 GKeyFile
*keys
= g_key_file_new();
2744 const char *group
= "[os-release]\n";
2746 if (!g_file_get_contents(fname
, &content
, NULL
, &err
)) {
2747 slog("failed to read '%s', error: %s", fname
, err
->message
);
2751 if (!g_utf8_validate(content
, -1, NULL
)) {
2752 slog("file is not utf-8 encoded: %s", fname
);
2755 content2
= g_strdup_printf("%s%s", group
, content
);
2757 if (!g_key_file_load_from_data(keys
, content2
, -1, G_KEY_FILE_NONE
,
2759 slog("failed to parse file '%s', error: %s", fname
, err
->message
);
2771 g_key_file_free(keys
);
2775 GuestOSInfo
*qmp_guest_get_osinfo(Error
**errp
)
2777 GuestOSInfo
*info
= NULL
;
2778 struct utsname kinfo
;
2779 GKeyFile
*osrelease
= NULL
;
2780 const char *qga_os_release
= g_getenv("QGA_OS_RELEASE");
2782 info
= g_new0(GuestOSInfo
, 1);
2784 if (uname(&kinfo
) != 0) {
2785 error_setg_errno(errp
, errno
, "uname failed");
2787 info
->has_kernel_version
= true;
2788 info
->kernel_version
= g_strdup(kinfo
.version
);
2789 info
->has_kernel_release
= true;
2790 info
->kernel_release
= g_strdup(kinfo
.release
);
2791 info
->has_machine
= true;
2792 info
->machine
= g_strdup(kinfo
.machine
);
2795 if (qga_os_release
!= NULL
) {
2796 osrelease
= ga_parse_osrelease(qga_os_release
);
2798 osrelease
= ga_parse_osrelease("/etc/os-release");
2799 if (osrelease
== NULL
) {
2800 osrelease
= ga_parse_osrelease("/usr/lib/os-release");
2804 if (osrelease
!= NULL
) {
2807 #define GET_FIELD(field, osfield) do { \
2808 value = g_key_file_get_value(osrelease, "os-release", osfield, NULL); \
2809 if (value != NULL) { \
2810 ga_osrelease_replace_special(value); \
2811 info->has_ ## field = true; \
2812 info->field = value; \
2815 GET_FIELD(id
, "ID");
2816 GET_FIELD(name
, "NAME");
2817 GET_FIELD(pretty_name
, "PRETTY_NAME");
2818 GET_FIELD(version
, "VERSION");
2819 GET_FIELD(version_id
, "VERSION_ID");
2820 GET_FIELD(variant
, "VARIANT");
2821 GET_FIELD(variant_id
, "VARIANT_ID");
2824 g_key_file_free(osrelease
);