2 * Copyright (C) 2003-2013 Kay Sievers <kay@vrfy.org>
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
28 #include <sys/prctl.h>
30 #include <sys/epoll.h>
32 #include <sys/signalfd.h>
35 #include "rtnl-util.h"
37 struct udev_event
*udev_event_new(struct udev_device
*dev
) {
38 struct udev
*udev
= udev_device_get_udev(dev
);
39 struct udev_event
*event
;
41 event
= new0(struct udev_event
, 1);
46 udev_list_init(udev
, &event
->run_list
, false);
47 udev_list_init(udev
, &event
->seclabel_list
, false);
48 event
->fd_signal
= -1;
49 event
->birth_usec
= now(CLOCK_MONOTONIC
);
53 void udev_event_unref(struct udev_event
*event
) {
56 sd_rtnl_unref(event
->rtnl
);
57 udev_list_cleanup(&event
->run_list
);
58 udev_list_cleanup(&event
->seclabel_list
);
59 free(event
->program_result
);
64 size_t udev_event_apply_format(struct udev_event
*event
, const char *src
, char *dest
, size_t size
) {
65 struct udev_device
*dev
= event
->dev
;
85 static const struct subst_map
{
90 { .name
= "devnode", .fmt
= 'N', .type
= SUBST_DEVNODE
},
91 { .name
= "tempnode", .fmt
= 'N', .type
= SUBST_DEVNODE
},
92 { .name
= "attr", .fmt
= 's', .type
= SUBST_ATTR
},
93 { .name
= "sysfs", .fmt
= 's', .type
= SUBST_ATTR
},
94 { .name
= "env", .fmt
= 'E', .type
= SUBST_ENV
},
95 { .name
= "kernel", .fmt
= 'k', .type
= SUBST_KERNEL
},
96 { .name
= "number", .fmt
= 'n', .type
= SUBST_KERNEL_NUMBER
},
97 { .name
= "driver", .fmt
= 'd', .type
= SUBST_DRIVER
},
98 { .name
= "devpath", .fmt
= 'p', .type
= SUBST_DEVPATH
},
99 { .name
= "id", .fmt
= 'b', .type
= SUBST_ID
},
100 { .name
= "major", .fmt
= 'M', .type
= SUBST_MAJOR
},
101 { .name
= "minor", .fmt
= 'm', .type
= SUBST_MINOR
},
102 { .name
= "result", .fmt
= 'c', .type
= SUBST_RESULT
},
103 { .name
= "parent", .fmt
= 'P', .type
= SUBST_PARENT
},
104 { .name
= "name", .fmt
= 'D', .type
= SUBST_NAME
},
105 { .name
= "links", .fmt
= 'L', .type
= SUBST_LINKS
},
106 { .name
= "root", .fmt
= 'r', .type
= SUBST_ROOT
},
107 { .name
= "sys", .fmt
= 'S', .type
= SUBST_SYS
},
118 enum subst_type type
= SUBST_UNKNOWN
;
119 char attrbuf
[UTIL_PATH_SIZE
];
122 while (from
[0] != '\0') {
123 if (from
[0] == '$') {
124 /* substitute named variable */
127 if (from
[1] == '$') {
132 for (i
= 0; i
< ELEMENTSOF(map
); i
++) {
133 if (startswith(&from
[1], map
[i
].name
)) {
135 from
+= strlen(map
[i
].name
)+1;
139 } else if (from
[0] == '%') {
140 /* substitute format char */
143 if (from
[1] == '%') {
148 for (i
= 0; i
< ELEMENTSOF(map
); i
++) {
149 if (from
[1] == map
[i
].fmt
) {
168 /* extract possible $format{attr} */
169 if (from
[0] == '{') {
173 for (i
= 0; from
[i
] != '}'; i
++) {
174 if (from
[i
] == '\0') {
175 log_error("missing closing brace for format '%s'", src
);
179 if (i
>= sizeof(attrbuf
))
181 memcpy(attrbuf
, from
, i
);
191 l
= strpcpy(&s
, l
, udev_device_get_devpath(dev
));
194 l
= strpcpy(&s
, l
, udev_device_get_sysname(dev
));
196 case SUBST_KERNEL_NUMBER
:
197 if (udev_device_get_sysnum(dev
) == NULL
)
199 l
= strpcpy(&s
, l
, udev_device_get_sysnum(dev
));
202 if (event
->dev_parent
== NULL
)
204 l
= strpcpy(&s
, l
, udev_device_get_sysname(event
->dev_parent
));
209 if (event
->dev_parent
== NULL
)
212 driver
= udev_device_get_driver(event
->dev_parent
);
215 l
= strpcpy(&s
, l
, driver
);
219 char num
[UTIL_PATH_SIZE
];
221 sprintf(num
, "%d", major(udev_device_get_devnum(dev
)));
222 l
= strpcpy(&s
, l
, num
);
226 char num
[UTIL_PATH_SIZE
];
228 sprintf(num
, "%d", minor(udev_device_get_devnum(dev
)));
229 l
= strpcpy(&s
, l
, num
);
236 if (event
->program_result
== NULL
)
238 /* get part part of the result string */
241 i
= strtoul(attr
, &rest
, 10);
243 char result
[UTIL_PATH_SIZE
];
244 char tmp
[UTIL_PATH_SIZE
];
247 strscpy(result
, sizeof(result
), event
->program_result
);
250 while (cpos
[0] != '\0' && !isspace(cpos
[0]))
252 while (isspace(cpos
[0]))
258 log_error("requested part of result string not found");
261 strscpy(tmp
, sizeof(tmp
), cpos
);
262 /* %{2+}c copies the whole string from the second part on */
263 if (rest
[0] != '+') {
264 cpos
= strchr(tmp
, ' ');
268 l
= strpcpy(&s
, l
, tmp
);
270 l
= strpcpy(&s
, l
, event
->program_result
);
275 const char *value
= NULL
;
276 char vbuf
[UTIL_NAME_SIZE
];
281 log_error("missing file parameter for attr");
285 /* try to read the value specified by "[dmi/id]product_name" */
286 if (util_resolve_subsys_kernel(event
->udev
, attr
, vbuf
, sizeof(vbuf
), 1) == 0)
289 /* try to read the attribute the device */
291 value
= udev_device_get_sysattr_value(event
->dev
, attr
);
293 /* try to read the attribute of the parent device, other matches have selected */
294 if (value
== NULL
&& event
->dev_parent
!= NULL
&& event
->dev_parent
!= event
->dev
)
295 value
= udev_device_get_sysattr_value(event
->dev_parent
, attr
);
300 /* strip trailing whitespace, and replace unwanted characters */
302 strscpy(vbuf
, sizeof(vbuf
), value
);
304 while (len
> 0 && isspace(vbuf
[--len
]))
306 count
= util_replace_chars(vbuf
, UDEV_ALLOWED_CHARS_INPUT
);
308 log_debug("%i character(s) replaced" , count
);
309 l
= strpcpy(&s
, l
, vbuf
);
313 struct udev_device
*dev_parent
;
316 dev_parent
= udev_device_get_parent(event
->dev
);
317 if (dev_parent
== NULL
)
319 devnode
= udev_device_get_devnode(dev_parent
);
321 l
= strpcpy(&s
, l
, devnode
+ strlen("/dev/"));
325 if (udev_device_get_devnode(dev
) != NULL
)
326 l
= strpcpy(&s
, l
, udev_device_get_devnode(dev
));
329 if (event
->name
!= NULL
)
330 l
= strpcpy(&s
, l
, event
->name
);
331 else if (udev_device_get_devnode(dev
) != NULL
)
332 l
= strpcpy(&s
, l
, udev_device_get_devnode(dev
) + strlen("/dev/"));
334 l
= strpcpy(&s
, l
, udev_device_get_sysname(dev
));
337 struct udev_list_entry
*list_entry
;
339 list_entry
= udev_device_get_devlinks_list_entry(dev
);
340 if (list_entry
== NULL
)
342 l
= strpcpy(&s
, l
, udev_list_entry_get_name(list_entry
) + strlen("/dev/"));
343 udev_list_entry_foreach(list_entry
, udev_list_entry_get_next(list_entry
))
344 l
= strpcpyl(&s
, l
, " ", udev_list_entry_get_name(list_entry
) + strlen("/dev/"), NULL
);
348 l
= strpcpy(&s
, l
, "/dev");
351 l
= strpcpy(&s
, l
, "/sys");
359 value
= udev_device_get_property_value(event
->dev
, attr
);
362 l
= strpcpy(&s
, l
, value
);
366 log_error("unknown substitution type=%i", type
);
376 static int spawn_exec(struct udev_event
*event
,
377 const char *cmd
, char *const argv
[], char **envp
, const sigset_t
*sigmask
,
378 int fd_stdout
, int fd_stderr
) {
382 /* discard child output or connect to pipe */
383 fd
= open("/dev/null", O_RDWR
);
385 dup2(fd
, STDIN_FILENO
);
387 dup2(fd
, STDOUT_FILENO
);
389 dup2(fd
, STDERR_FILENO
);
392 log_error("open /dev/null failed: %m");
395 /* connect pipes to std{out,err} */
396 if (fd_stdout
>= 0) {
397 dup2(fd_stdout
, STDOUT_FILENO
);
400 if (fd_stderr
>= 0) {
401 dup2(fd_stderr
, STDERR_FILENO
);
405 /* terminate child in case parent goes away */
406 prctl(PR_SET_PDEATHSIG
, SIGTERM
);
408 /* restore original udev sigmask before exec */
410 sigprocmask(SIG_SETMASK
, sigmask
, NULL
);
412 execve(argv
[0], argv
, envp
);
416 log_error("failed to execute '%s' '%s': %m", argv
[0], cmd
);
420 static void spawn_read(struct udev_event
*event
,
423 int fd_stdout
, int fd_stderr
,
424 char *result
, size_t ressize
) {
425 _cleanup_close_
int fd_ep
= -1;
426 struct epoll_event ep_outpipe
= {
428 .data
.ptr
= &fd_stdout
,
430 struct epoll_event ep_errpipe
= {
432 .data
.ptr
= &fd_stderr
,
437 /* read from child if requested */
438 if (fd_stdout
< 0 && fd_stderr
< 0)
441 fd_ep
= epoll_create1(EPOLL_CLOEXEC
);
443 log_error("error creating epoll fd: %m");
447 if (fd_stdout
>= 0) {
448 r
= epoll_ctl(fd_ep
, EPOLL_CTL_ADD
, fd_stdout
, &ep_outpipe
);
450 log_error("fail to add stdout fd to epoll: %m");
455 if (fd_stderr
>= 0) {
456 r
= epoll_ctl(fd_ep
, EPOLL_CTL_ADD
, fd_stderr
, &ep_errpipe
);
458 log_error("fail to add stderr fd to epoll: %m");
463 /* read child output */
464 while (fd_stdout
>= 0 || fd_stderr
>= 0) {
467 struct epoll_event ev
[4];
470 if (timeout_usec
> 0) {
473 age_usec
= now(CLOCK_MONOTONIC
) - event
->birth_usec
;
474 if (age_usec
>= timeout_usec
) {
475 log_error("timeout '%s'", cmd
);
478 timeout
= ((timeout_usec
- age_usec
) / USEC_PER_MSEC
) + MSEC_PER_SEC
;
483 fdcount
= epoll_wait(fd_ep
, ev
, ELEMENTSOF(ev
), timeout
);
487 log_error("failed to poll: %m");
489 } else if (fdcount
== 0) {
490 log_error("timeout '%s'", cmd
);
494 for (i
= 0; i
< fdcount
; i
++) {
495 int *fd
= (int *)ev
[i
].data
.ptr
;
497 if (ev
[i
].events
& EPOLLIN
) {
501 count
= read(*fd
, buf
, sizeof(buf
)-1);
506 /* store stdout result */
507 if (result
!= NULL
&& *fd
== fd_stdout
) {
508 if (respos
+ count
< ressize
) {
509 memcpy(&result
[respos
], buf
, count
);
512 log_error("'%s' ressize %zd too short", cmd
, ressize
);
516 /* log debug output only if we watch stderr */
517 if (fd_stderr
>= 0) {
522 while ((line
= strsep(&pos
, "\n"))) {
523 if (pos
!= NULL
|| line
[0] != '\0')
524 log_debug("'%s'(%s) '%s'", cmd
, *fd
== fd_stdout
? "out" : "err" , line
);
527 } else if (ev
[i
].events
& EPOLLHUP
) {
528 r
= epoll_ctl(fd_ep
, EPOLL_CTL_DEL
, *fd
, NULL
);
530 log_error("failed to remove fd from epoll: %m");
538 /* return the child's stdout string */
540 result
[respos
] = '\0';
543 static int spawn_wait(struct udev_event
*event
,
545 usec_t timeout_warn_usec
,
546 const char *cmd
, pid_t pid
) {
547 struct pollfd pfd
[1];
550 pfd
[0].events
= POLLIN
;
551 pfd
[0].fd
= event
->fd_signal
;
555 int timeout_warn
= 0;
558 if (timeout_usec
> 0) {
561 age_usec
= now(CLOCK_MONOTONIC
) - event
->birth_usec
;
562 if (age_usec
>= timeout_usec
)
565 if (timeout_warn_usec
> 0)
566 timeout_warn
= ((timeout_warn_usec
- age_usec
) / USEC_PER_MSEC
) + MSEC_PER_SEC
;
568 timeout
= ((timeout_usec
- timeout_warn_usec
- age_usec
) / USEC_PER_MSEC
) + MSEC_PER_SEC
;
574 fdcount
= poll(pfd
, 1, timeout_warn
);
579 log_error("failed to poll: %m");
583 log_warning("slow: '%s' [%u]", cmd
, pid
);
585 fdcount
= poll(pfd
, 1, timeout
);
590 log_error("failed to poll: %m");
594 log_error("timeout: killing '%s' [%u]", cmd
, pid
);
599 if (pfd
[0].revents
& POLLIN
) {
600 struct signalfd_siginfo fdsi
;
604 size
= read(event
->fd_signal
, &fdsi
, sizeof(struct signalfd_siginfo
));
605 if (size
!= sizeof(struct signalfd_siginfo
))
608 switch (fdsi
.ssi_signo
) {
610 event
->sigterm
= true;
613 if (waitpid(pid
, &status
, WNOHANG
) < 0)
615 if (WIFEXITED(status
)) {
616 log_debug("'%s' [%u] exit with return code %i", cmd
, pid
, WEXITSTATUS(status
));
617 if (WEXITSTATUS(status
) != 0)
619 } else if (WIFSIGNALED(status
)) {
620 log_error("'%s' [%u] terminated by signal %i (%s)", cmd
, pid
, WTERMSIG(status
), strsignal(WTERMSIG(status
)));
622 } else if (WIFSTOPPED(status
)) {
623 log_error("'%s' [%u] stopped", cmd
, pid
);
625 } else if (WIFCONTINUED(status
)) {
626 log_error("'%s' [%u] continued", cmd
, pid
);
629 log_error("'%s' [%u] exit with status 0x%04x", cmd
, pid
, status
);
641 int udev_build_argv(struct udev
*udev
, char *cmd
, int *argc
, char *argv
[]) {
645 if (strchr(cmd
, ' ') == NULL
) {
651 while (pos
!= NULL
&& pos
[0] != '\0') {
652 if (pos
[0] == '\'') {
653 /* do not separate quotes */
655 argv
[i
] = strsep(&pos
, "\'");
657 while (pos
[0] == ' ')
660 argv
[i
] = strsep(&pos
, " ");
662 while (pos
[0] == ' ')
674 int udev_event_spawn(struct udev_event
*event
,
676 usec_t timeout_warn_usec
,
677 const char *cmd
, char **envp
, const sigset_t
*sigmask
,
678 char *result
, size_t ressize
) {
679 struct udev
*udev
= event
->udev
;
680 int outpipe
[2] = {-1, -1};
681 int errpipe
[2] = {-1, -1};
683 char arg
[UTIL_PATH_SIZE
];
685 char program
[UTIL_PATH_SIZE
];
688 strscpy(arg
, sizeof(arg
), cmd
);
689 udev_build_argv(event
->udev
, arg
, NULL
, argv
);
691 /* pipes from child to parent */
692 if (result
!= NULL
|| udev_get_log_priority(udev
) >= LOG_INFO
) {
693 if (pipe2(outpipe
, O_NONBLOCK
) != 0) {
695 log_error("pipe failed: %m");
699 if (udev_get_log_priority(udev
) >= LOG_INFO
) {
700 if (pipe2(errpipe
, O_NONBLOCK
) != 0) {
702 log_error("pipe failed: %m");
707 /* allow programs in /usr/lib/udev/ to be called without the path */
708 if (argv
[0][0] != '/') {
709 strscpyl(program
, sizeof(program
), UDEVLIBEXECDIR
"/", argv
[0], NULL
);
716 /* child closes parent's ends of pipes */
717 if (outpipe
[READ_END
] >= 0) {
718 close(outpipe
[READ_END
]);
719 outpipe
[READ_END
] = -1;
721 if (errpipe
[READ_END
] >= 0) {
722 close(errpipe
[READ_END
]);
723 errpipe
[READ_END
] = -1;
726 log_debug("starting '%s'", cmd
);
728 spawn_exec(event
, cmd
, argv
, envp
, sigmask
,
729 outpipe
[WRITE_END
], errpipe
[WRITE_END
]);
733 log_error("fork of '%s' failed: %m", cmd
);
737 /* parent closed child's ends of pipes */
738 if (outpipe
[WRITE_END
] >= 0) {
739 close(outpipe
[WRITE_END
]);
740 outpipe
[WRITE_END
] = -1;
742 if (errpipe
[WRITE_END
] >= 0) {
743 close(errpipe
[WRITE_END
]);
744 errpipe
[WRITE_END
] = -1;
750 outpipe
[READ_END
], errpipe
[READ_END
],
753 err
= spawn_wait(event
, timeout_usec
, timeout_warn_usec
, cmd
, pid
);
757 if (outpipe
[READ_END
] >= 0)
758 close(outpipe
[READ_END
]);
759 if (outpipe
[WRITE_END
] >= 0)
760 close(outpipe
[WRITE_END
]);
761 if (errpipe
[READ_END
] >= 0)
762 close(errpipe
[READ_END
]);
763 if (errpipe
[WRITE_END
] >= 0)
764 close(errpipe
[WRITE_END
]);
768 static int rename_netif(struct udev_event
*event
) {
769 struct udev_device
*dev
= event
->dev
;
774 oldname
= udev_device_get_sysname(dev
);
776 strscpy(name
, IFNAMSIZ
, event
->name
);
778 r
= rtnl_set_link_name(&event
->rtnl
, udev_device_get_ifindex(dev
), name
);
780 log_error("error changing net interface name '%s' to '%s': %s",
781 oldname
, name
, strerror(-r
));
785 log_debug("renamed network interface '%s' to '%s'\n", oldname
, name
);
790 void udev_event_execute_rules(struct udev_event
*event
,
792 usec_t timeout_warn_usec
,
793 struct udev_rules
*rules
, const sigset_t
*sigmask
) {
794 struct udev_device
*dev
= event
->dev
;
796 if (udev_device_get_subsystem(dev
) == NULL
)
799 if (streq(udev_device_get_action(dev
), "remove")) {
800 udev_device_read_db(dev
, NULL
);
801 udev_device_delete_db(dev
);
802 udev_device_tag_index(dev
, NULL
, false);
804 if (major(udev_device_get_devnum(dev
)) != 0)
805 udev_watch_end(event
->udev
, dev
);
807 udev_rules_apply_to_event(rules
, event
, timeout_usec
, timeout_warn_usec
, sigmask
);
809 if (major(udev_device_get_devnum(dev
)) != 0)
810 udev_node_remove(dev
);
812 event
->dev_db
= udev_device_new(event
->udev
);
813 if (event
->dev_db
!= NULL
) {
814 udev_device_set_syspath(event
->dev_db
, udev_device_get_syspath(dev
));
815 udev_device_set_subsystem(event
->dev_db
, udev_device_get_subsystem(dev
));
816 udev_device_read_db(event
->dev_db
, NULL
);
817 udev_device_set_info_loaded(event
->dev_db
);
819 /* disable watch during event processing */
820 if (major(udev_device_get_devnum(dev
)) != 0)
821 udev_watch_end(event
->udev
, event
->dev_db
);
824 if (major(udev_device_get_devnum(dev
)) == 0 &&
825 streq(udev_device_get_action(dev
), "move")) {
826 struct udev_list_entry
*entry
;
828 for ((entry
= udev_device_get_properties_list_entry(event
->dev_db
)); entry
; entry
= udev_list_entry_get_next(entry
)) {
829 const char *key
, *value
;
830 struct udev_list_entry
*property
;
832 key
= udev_list_entry_get_name(entry
);
833 value
= udev_list_entry_get_value(entry
);
835 property
= udev_device_add_property(event
->dev
, key
, value
);
836 udev_list_entry_set_num(property
, true);
840 udev_rules_apply_to_event(rules
, event
, timeout_usec
, timeout_warn_usec
, sigmask
);
842 /* rename a new network interface, if needed */
843 if (udev_device_get_ifindex(dev
) > 0 && streq(udev_device_get_action(dev
), "add") &&
844 event
->name
!= NULL
&& !streq(event
->name
, udev_device_get_sysname(dev
))) {
845 char syspath
[UTIL_PATH_SIZE
];
849 r
= rename_netif(event
);
851 /* remember old name */
852 udev_device_add_property(dev
, "INTERFACE_OLD", udev_device_get_sysname(dev
));
854 /* now change the devpath, because the kernel device name has changed */
855 strscpy(syspath
, sizeof(syspath
), udev_device_get_syspath(dev
));
856 pos
= strrchr(syspath
, '/');
859 strscpy(pos
, sizeof(syspath
) - (pos
- syspath
), event
->name
);
860 udev_device_set_syspath(event
->dev
, syspath
);
861 udev_device_add_property(dev
, "INTERFACE", udev_device_get_sysname(dev
));
862 log_debug("changed devpath to '%s'", udev_device_get_devpath(dev
));
867 if (major(udev_device_get_devnum(dev
)) > 0) {
870 /* remove/update possible left-over symlinks from old database entry */
871 if (event
->dev_db
!= NULL
)
872 udev_node_update_old_links(dev
, event
->dev_db
);
874 if (!event
->owner_set
)
875 event
->uid
= udev_device_get_devnode_uid(dev
);
877 if (!event
->group_set
)
878 event
->gid
= udev_device_get_devnode_gid(dev
);
880 if (!event
->mode_set
) {
881 if (udev_device_get_devnode_mode(dev
) > 0) {
882 /* kernel supplied value */
883 event
->mode
= udev_device_get_devnode_mode(dev
);
884 } else if (event
->gid
> 0) {
885 /* default 0660 if a group is assigned */
893 apply
= streq(udev_device_get_action(dev
), "add") || event
->owner_set
|| event
->group_set
|| event
->mode_set
;
894 udev_node_add(dev
, apply
, event
->mode
, event
->uid
, event
->gid
, &event
->seclabel_list
);
897 /* preserve old, or get new initialization timestamp */
898 if (event
->dev_db
!= NULL
&& udev_device_get_usec_initialized(event
->dev_db
) > 0)
899 udev_device_set_usec_initialized(event
->dev
, udev_device_get_usec_initialized(event
->dev_db
));
900 else if (udev_device_get_usec_initialized(event
->dev
) == 0)
901 udev_device_set_usec_initialized(event
->dev
, now(CLOCK_MONOTONIC
));
903 /* (re)write database file */
904 udev_device_update_db(dev
);
905 udev_device_tag_index(dev
, event
->dev_db
, true);
906 udev_device_set_is_initialized(dev
);
908 udev_device_unref(event
->dev_db
);
909 event
->dev_db
= NULL
;
913 void udev_event_execute_run(struct udev_event
*event
, usec_t timeout_usec
, usec_t timeout_warn_usec
, const sigset_t
*sigmask
) {
914 struct udev_list_entry
*list_entry
;
916 udev_list_entry_foreach(list_entry
, udev_list_get_entry(&event
->run_list
)) {
917 const char *cmd
= udev_list_entry_get_name(list_entry
);
918 enum udev_builtin_cmd builtin_cmd
= udev_list_entry_get_num(list_entry
);
920 if (builtin_cmd
< UDEV_BUILTIN_MAX
) {
921 char command
[UTIL_PATH_SIZE
];
923 udev_event_apply_format(event
, cmd
, command
, sizeof(command
));
924 udev_builtin_run(event
->dev
, builtin_cmd
, command
, false);
926 char program
[UTIL_PATH_SIZE
];
929 if (event
->exec_delay
> 0) {
930 log_debug("delay execution of '%s'", program
);
931 sleep(event
->exec_delay
);
934 udev_event_apply_format(event
, cmd
, program
, sizeof(program
));
935 envp
= udev_device_get_properties_envp(event
->dev
);
936 udev_event_spawn(event
, timeout_usec
, timeout_warn_usec
, program
, envp
, sigmask
, NULL
, 0);