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/>.
27 #include <sys/epoll.h>
28 #include <sys/prctl.h>
29 #include <sys/signalfd.h>
33 #include "alloc-util.h"
35 #include "formats-util.h"
36 #include "netlink-util.h"
37 #include "process-util.h"
38 #include "signal-util.h"
39 #include "string-util.h"
42 typedef struct Spawn
{
50 struct udev_event
*udev_event_new(struct udev_device
*dev
) {
51 struct udev
*udev
= udev_device_get_udev(dev
);
52 struct udev_event
*event
;
54 event
= new0(struct udev_event
, 1);
59 udev_list_init(udev
, &event
->run_list
, false);
60 udev_list_init(udev
, &event
->seclabel_list
, false);
61 event
->birth_usec
= clock_boottime_or_monotonic();
65 void udev_event_unref(struct udev_event
*event
) {
68 sd_netlink_unref(event
->rtnl
);
69 udev_list_cleanup(&event
->run_list
);
70 udev_list_cleanup(&event
->seclabel_list
);
71 free(event
->program_result
);
76 size_t udev_event_apply_format(struct udev_event
*event
, const char *src
, char *dest
, size_t size
) {
77 struct udev_device
*dev
= event
->dev
;
97 static const struct subst_map
{
100 enum subst_type type
;
102 { .name
= "devnode", .fmt
= 'N', .type
= SUBST_DEVNODE
},
103 { .name
= "tempnode", .fmt
= 'N', .type
= SUBST_DEVNODE
},
104 { .name
= "attr", .fmt
= 's', .type
= SUBST_ATTR
},
105 { .name
= "sysfs", .fmt
= 's', .type
= SUBST_ATTR
},
106 { .name
= "env", .fmt
= 'E', .type
= SUBST_ENV
},
107 { .name
= "kernel", .fmt
= 'k', .type
= SUBST_KERNEL
},
108 { .name
= "number", .fmt
= 'n', .type
= SUBST_KERNEL_NUMBER
},
109 { .name
= "driver", .fmt
= 'd', .type
= SUBST_DRIVER
},
110 { .name
= "devpath", .fmt
= 'p', .type
= SUBST_DEVPATH
},
111 { .name
= "id", .fmt
= 'b', .type
= SUBST_ID
},
112 { .name
= "major", .fmt
= 'M', .type
= SUBST_MAJOR
},
113 { .name
= "minor", .fmt
= 'm', .type
= SUBST_MINOR
},
114 { .name
= "result", .fmt
= 'c', .type
= SUBST_RESULT
},
115 { .name
= "parent", .fmt
= 'P', .type
= SUBST_PARENT
},
116 { .name
= "name", .fmt
= 'D', .type
= SUBST_NAME
},
117 { .name
= "links", .fmt
= 'L', .type
= SUBST_LINKS
},
118 { .name
= "root", .fmt
= 'r', .type
= SUBST_ROOT
},
119 { .name
= "sys", .fmt
= 'S', .type
= SUBST_SYS
},
132 enum subst_type type
= SUBST_UNKNOWN
;
133 char attrbuf
[UTIL_PATH_SIZE
];
136 while (from
[0] != '\0') {
137 if (from
[0] == '$') {
138 /* substitute named variable */
141 if (from
[1] == '$') {
146 for (i
= 0; i
< ELEMENTSOF(map
); i
++) {
147 if (startswith(&from
[1], map
[i
].name
)) {
149 from
+= strlen(map
[i
].name
)+1;
153 } else if (from
[0] == '%') {
154 /* substitute format char */
157 if (from
[1] == '%') {
162 for (i
= 0; i
< ELEMENTSOF(map
); i
++) {
163 if (from
[1] == map
[i
].fmt
) {
182 /* extract possible $format{attr} */
183 if (from
[0] == '{') {
187 for (i
= 0; from
[i
] != '}'; i
++) {
188 if (from
[i
] == '\0') {
189 log_error("missing closing brace for format '%s'", src
);
193 if (i
>= sizeof(attrbuf
))
195 memcpy(attrbuf
, from
, i
);
205 l
= strpcpy(&s
, l
, udev_device_get_devpath(dev
));
208 l
= strpcpy(&s
, l
, udev_device_get_sysname(dev
));
210 case SUBST_KERNEL_NUMBER
:
211 if (udev_device_get_sysnum(dev
) == NULL
)
213 l
= strpcpy(&s
, l
, udev_device_get_sysnum(dev
));
216 if (event
->dev_parent
== NULL
)
218 l
= strpcpy(&s
, l
, udev_device_get_sysname(event
->dev_parent
));
223 if (event
->dev_parent
== NULL
)
226 driver
= udev_device_get_driver(event
->dev_parent
);
229 l
= strpcpy(&s
, l
, driver
);
233 char num
[UTIL_PATH_SIZE
];
235 sprintf(num
, "%u", major(udev_device_get_devnum(dev
)));
236 l
= strpcpy(&s
, l
, num
);
240 char num
[UTIL_PATH_SIZE
];
242 sprintf(num
, "%u", minor(udev_device_get_devnum(dev
)));
243 l
= strpcpy(&s
, l
, num
);
250 if (event
->program_result
== NULL
)
252 /* get part part of the result string */
255 i
= strtoul(attr
, &rest
, 10);
257 char result
[UTIL_PATH_SIZE
];
258 char tmp
[UTIL_PATH_SIZE
];
261 strscpy(result
, sizeof(result
), event
->program_result
);
264 while (cpos
[0] != '\0' && !isspace(cpos
[0]))
266 while (isspace(cpos
[0]))
272 log_error("requested part of result string not found");
275 strscpy(tmp
, sizeof(tmp
), cpos
);
276 /* %{2+}c copies the whole string from the second part on */
277 if (rest
[0] != '+') {
278 cpos
= strchr(tmp
, ' ');
282 l
= strpcpy(&s
, l
, tmp
);
284 l
= strpcpy(&s
, l
, event
->program_result
);
289 const char *value
= NULL
;
290 char vbuf
[UTIL_NAME_SIZE
];
295 log_error("missing file parameter for attr");
299 /* try to read the value specified by "[dmi/id]product_name" */
300 if (util_resolve_subsys_kernel(event
->udev
, attr
, vbuf
, sizeof(vbuf
), 1) == 0)
303 /* try to read the attribute the device */
305 value
= udev_device_get_sysattr_value(event
->dev
, attr
);
307 /* try to read the attribute of the parent device, other matches have selected */
308 if (value
== NULL
&& event
->dev_parent
!= NULL
&& event
->dev_parent
!= event
->dev
)
309 value
= udev_device_get_sysattr_value(event
->dev_parent
, attr
);
314 /* strip trailing whitespace, and replace unwanted characters */
316 strscpy(vbuf
, sizeof(vbuf
), value
);
318 while (len
> 0 && isspace(vbuf
[--len
]))
320 count
= util_replace_chars(vbuf
, UDEV_ALLOWED_CHARS_INPUT
);
322 log_debug("%i character(s) replaced" , count
);
323 l
= strpcpy(&s
, l
, vbuf
);
327 struct udev_device
*dev_parent
;
330 dev_parent
= udev_device_get_parent(event
->dev
);
331 if (dev_parent
== NULL
)
333 devnode
= udev_device_get_devnode(dev_parent
);
335 l
= strpcpy(&s
, l
, devnode
+ strlen("/dev/"));
339 if (udev_device_get_devnode(dev
) != NULL
)
340 l
= strpcpy(&s
, l
, udev_device_get_devnode(dev
));
343 if (event
->name
!= NULL
)
344 l
= strpcpy(&s
, l
, event
->name
);
345 else if (udev_device_get_devnode(dev
) != NULL
)
346 l
= strpcpy(&s
, l
, udev_device_get_devnode(dev
) + strlen("/dev/"));
348 l
= strpcpy(&s
, l
, udev_device_get_sysname(dev
));
351 struct udev_list_entry
*list_entry
;
353 list_entry
= udev_device_get_devlinks_list_entry(dev
);
354 if (list_entry
== NULL
)
356 l
= strpcpy(&s
, l
, udev_list_entry_get_name(list_entry
) + strlen("/dev/"));
357 udev_list_entry_foreach(list_entry
, udev_list_entry_get_next(list_entry
))
358 l
= strpcpyl(&s
, l
, " ", udev_list_entry_get_name(list_entry
) + strlen("/dev/"), NULL
);
362 l
= strpcpy(&s
, l
, "/dev");
365 l
= strpcpy(&s
, l
, "/sys");
373 value
= udev_device_get_property_value(event
->dev
, attr
);
376 l
= strpcpy(&s
, l
, value
);
380 log_error("unknown substitution type=%i", type
);
390 static int spawn_exec(struct udev_event
*event
,
391 const char *cmd
, char *const argv
[], char **envp
,
392 int fd_stdout
, int fd_stderr
) {
393 _cleanup_close_
int fd
= -1;
396 /* discard child output or connect to pipe */
397 fd
= open("/dev/null", O_RDWR
);
399 r
= dup2(fd
, STDIN_FILENO
);
401 log_warning_errno(errno
, "redirecting stdin failed: %m");
404 r
= dup2(fd
, STDOUT_FILENO
);
406 log_warning_errno(errno
, "redirecting stdout failed: %m");
410 r
= dup2(fd
, STDERR_FILENO
);
412 log_warning_errno(errno
, "redirecting stderr failed: %m");
415 log_warning_errno(errno
, "open /dev/null failed: %m");
417 /* connect pipes to std{out,err} */
418 if (fd_stdout
>= 0) {
419 r
= dup2(fd_stdout
, STDOUT_FILENO
);
421 log_warning_errno(errno
, "redirecting stdout failed: %m");
423 fd_stdout
= safe_close(fd_stdout
);
426 if (fd_stderr
>= 0) {
427 r
= dup2(fd_stderr
, STDERR_FILENO
);
429 log_warning_errno(errno
, "redirecting stdout failed: %m");
431 fd_stderr
= safe_close(fd_stderr
);
434 /* terminate child in case parent goes away */
435 prctl(PR_SET_PDEATHSIG
, SIGTERM
);
437 /* restore sigmask before exec */
438 (void) reset_signal_mask();
440 execve(argv
[0], argv
, envp
);
443 return log_error_errno(errno
, "failed to execute '%s' '%s': %m", argv
[0], cmd
);
446 static void spawn_read(struct udev_event
*event
,
449 int fd_stdout
, int fd_stderr
,
450 char *result
, size_t ressize
) {
451 _cleanup_close_
int fd_ep
= -1;
452 struct epoll_event ep_outpipe
= {
454 .data
.ptr
= &fd_stdout
,
456 struct epoll_event ep_errpipe
= {
458 .data
.ptr
= &fd_stderr
,
463 /* read from child if requested */
464 if (fd_stdout
< 0 && fd_stderr
< 0)
467 fd_ep
= epoll_create1(EPOLL_CLOEXEC
);
469 log_error_errno(errno
, "error creating epoll fd: %m");
473 if (fd_stdout
>= 0) {
474 r
= epoll_ctl(fd_ep
, EPOLL_CTL_ADD
, fd_stdout
, &ep_outpipe
);
476 log_error_errno(errno
, "fail to add stdout fd to epoll: %m");
481 if (fd_stderr
>= 0) {
482 r
= epoll_ctl(fd_ep
, EPOLL_CTL_ADD
, fd_stderr
, &ep_errpipe
);
484 log_error_errno(errno
, "fail to add stderr fd to epoll: %m");
489 /* read child output */
490 while (fd_stdout
>= 0 || fd_stderr
>= 0) {
493 struct epoll_event ev
[4];
496 if (timeout_usec
> 0) {
499 age_usec
= clock_boottime_or_monotonic() - event
->birth_usec
;
500 if (age_usec
>= timeout_usec
) {
501 log_error("timeout '%s'", cmd
);
504 timeout
= ((timeout_usec
- age_usec
) / USEC_PER_MSEC
) + MSEC_PER_SEC
;
509 fdcount
= epoll_wait(fd_ep
, ev
, ELEMENTSOF(ev
), timeout
);
513 log_error_errno(errno
, "failed to poll: %m");
515 } else if (fdcount
== 0) {
516 log_error("timeout '%s'", cmd
);
520 for (i
= 0; i
< fdcount
; i
++) {
521 int *fd
= (int *)ev
[i
].data
.ptr
;
526 if (ev
[i
].events
& EPOLLIN
) {
530 count
= read(*fd
, buf
, sizeof(buf
)-1);
535 /* store stdout result */
536 if (result
!= NULL
&& *fd
== fd_stdout
) {
537 if (respos
+ count
< ressize
) {
538 memcpy(&result
[respos
], buf
, count
);
541 log_error("'%s' ressize %zu too short", cmd
, ressize
);
545 /* log debug output only if we watch stderr */
546 if (fd_stderr
>= 0) {
551 while ((line
= strsep(&pos
, "\n"))) {
552 if (pos
!= NULL
|| line
[0] != '\0')
553 log_debug("'%s'(%s) '%s'", cmd
, *fd
== fd_stdout
? "out" : "err" , line
);
556 } else if (ev
[i
].events
& EPOLLHUP
) {
557 r
= epoll_ctl(fd_ep
, EPOLL_CTL_DEL
, *fd
, NULL
);
559 log_error_errno(errno
, "failed to remove fd from epoll: %m");
567 /* return the child's stdout string */
569 result
[respos
] = '\0';
572 static int on_spawn_timeout(sd_event_source
*s
, uint64_t usec
, void *userdata
) {
573 Spawn
*spawn
= userdata
;
574 char timeout
[FORMAT_TIMESTAMP_RELATIVE_MAX
];
578 kill_and_sigcont(spawn
->pid
, SIGKILL
);
580 log_error("spawned process '%s' ["PID_FMT
"] timed out after %s, killing", spawn
->cmd
, spawn
->pid
,
581 format_timestamp_relative(timeout
, sizeof(timeout
), spawn
->timeout
));
586 static int on_spawn_timeout_warning(sd_event_source
*s
, uint64_t usec
, void *userdata
) {
587 Spawn
*spawn
= userdata
;
588 char timeout
[FORMAT_TIMESTAMP_RELATIVE_MAX
];
592 log_warning("spawned process '%s' ["PID_FMT
"] is taking longer than %s to complete", spawn
->cmd
, spawn
->pid
,
593 format_timestamp_relative(timeout
, sizeof(timeout
), spawn
->timeout
));
598 static int on_spawn_sigchld(sd_event_source
*s
, const siginfo_t
*si
, void *userdata
) {
599 Spawn
*spawn
= userdata
;
603 switch (si
->si_code
) {
605 if (si
->si_status
== 0) {
606 log_debug("Process '%s' succeeded.", spawn
->cmd
);
607 sd_event_exit(sd_event_source_get_event(s
), 0);
610 } else if (spawn
->accept_failure
)
611 log_debug("Process '%s' failed with exit code %i.", spawn
->cmd
, si
->si_status
);
613 log_warning("Process '%s' failed with exit code %i.", spawn
->cmd
, si
->si_status
);
618 log_warning("Process '%s' terminated by signal %s.", spawn
->cmd
, signal_to_string(si
->si_status
));
622 log_error("Process '%s' failed due to unknown reason.", spawn
->cmd
);
625 sd_event_exit(sd_event_source_get_event(s
), -EIO
);
630 static int spawn_wait(struct udev_event
*event
,
632 usec_t timeout_warn_usec
,
633 const char *cmd
, pid_t pid
,
634 bool accept_failure
) {
638 .accept_failure
= accept_failure
,
640 _cleanup_(sd_event_unrefp
) sd_event
*e
= NULL
;
643 r
= sd_event_new(&e
);
647 if (timeout_usec
> 0) {
648 usec_t usec
, age_usec
;
650 usec
= now(clock_boottime_or_monotonic());
651 age_usec
= usec
- event
->birth_usec
;
652 if (age_usec
< timeout_usec
) {
653 if (timeout_warn_usec
> 0 && timeout_warn_usec
< timeout_usec
&& age_usec
< timeout_warn_usec
) {
654 spawn
.timeout_warn
= timeout_warn_usec
- age_usec
;
656 r
= sd_event_add_time(e
, NULL
, clock_boottime_or_monotonic(),
657 usec
+ spawn
.timeout_warn
, USEC_PER_SEC
,
658 on_spawn_timeout_warning
, &spawn
);
663 spawn
.timeout
= timeout_usec
- age_usec
;
665 r
= sd_event_add_time(e
, NULL
, clock_boottime_or_monotonic(),
666 usec
+ spawn
.timeout
, USEC_PER_SEC
, on_spawn_timeout
, &spawn
);
672 r
= sd_event_add_child(e
, NULL
, pid
, WEXITED
, on_spawn_sigchld
, &spawn
);
676 r
= sd_event_loop(e
);
680 r
= sd_event_get_exit_code(e
, &ret
);
687 int udev_build_argv(struct udev
*udev
, char *cmd
, int *argc
, char *argv
[]) {
691 if (strchr(cmd
, ' ') == NULL
) {
697 while (pos
!= NULL
&& pos
[0] != '\0') {
698 if (pos
[0] == '\'') {
699 /* do not separate quotes */
701 argv
[i
] = strsep(&pos
, "\'");
703 while (pos
[0] == ' ')
706 argv
[i
] = strsep(&pos
, " ");
708 while (pos
[0] == ' ')
720 int udev_event_spawn(struct udev_event
*event
,
722 usec_t timeout_warn_usec
,
725 char *result
, size_t ressize
) {
726 int outpipe
[2] = {-1, -1};
727 int errpipe
[2] = {-1, -1};
731 /* pipes from child to parent */
732 if (result
!= NULL
|| log_get_max_level() >= LOG_INFO
) {
733 if (pipe2(outpipe
, O_NONBLOCK
) != 0) {
734 err
= log_error_errno(errno
, "pipe failed: %m");
738 if (log_get_max_level() >= LOG_INFO
) {
739 if (pipe2(errpipe
, O_NONBLOCK
) != 0) {
740 err
= log_error_errno(errno
, "pipe failed: %m");
749 char arg
[UTIL_PATH_SIZE
];
751 char program
[UTIL_PATH_SIZE
];
753 /* child closes parent's ends of pipes */
754 outpipe
[READ_END
] = safe_close(outpipe
[READ_END
]);
755 errpipe
[READ_END
] = safe_close(errpipe
[READ_END
]);
757 strscpy(arg
, sizeof(arg
), cmd
);
758 udev_build_argv(event
->udev
, arg
, NULL
, argv
);
760 /* allow programs in /usr/lib/udev/ to be called without the path */
761 if (argv
[0][0] != '/') {
762 strscpyl(program
, sizeof(program
), UDEVLIBEXECDIR
"/", argv
[0], NULL
);
766 log_debug("starting '%s'", cmd
);
768 spawn_exec(event
, cmd
, argv
, udev_device_get_properties_envp(event
->dev
),
769 outpipe
[WRITE_END
], errpipe
[WRITE_END
]);
774 log_error_errno(errno
, "fork of '%s' failed: %m", cmd
);
778 /* parent closed child's ends of pipes */
779 outpipe
[WRITE_END
] = safe_close(outpipe
[WRITE_END
]);
780 errpipe
[WRITE_END
] = safe_close(errpipe
[WRITE_END
]);
785 outpipe
[READ_END
], errpipe
[READ_END
],
788 err
= spawn_wait(event
, timeout_usec
, timeout_warn_usec
, cmd
, pid
, accept_failure
);
792 if (outpipe
[READ_END
] >= 0)
793 close(outpipe
[READ_END
]);
794 if (outpipe
[WRITE_END
] >= 0)
795 close(outpipe
[WRITE_END
]);
796 if (errpipe
[READ_END
] >= 0)
797 close(errpipe
[READ_END
]);
798 if (errpipe
[WRITE_END
] >= 0)
799 close(errpipe
[WRITE_END
]);
803 static int rename_netif(struct udev_event
*event
) {
804 struct udev_device
*dev
= event
->dev
;
809 oldname
= udev_device_get_sysname(dev
);
811 strscpy(name
, IFNAMSIZ
, event
->name
);
813 r
= rtnl_set_link_name(&event
->rtnl
, udev_device_get_ifindex(dev
), name
);
815 return log_error_errno(r
, "Error changing net interface name '%s' to '%s': %m", oldname
, name
);
817 log_debug("renamed network interface '%s' to '%s'", oldname
, name
);
822 void udev_event_execute_rules(struct udev_event
*event
,
823 usec_t timeout_usec
, usec_t timeout_warn_usec
,
824 struct udev_list
*properties_list
,
825 struct udev_rules
*rules
) {
826 struct udev_device
*dev
= event
->dev
;
828 if (udev_device_get_subsystem(dev
) == NULL
)
831 if (streq(udev_device_get_action(dev
), "remove")) {
832 udev_device_read_db(dev
);
833 udev_device_tag_index(dev
, NULL
, false);
834 udev_device_delete_db(dev
);
836 if (major(udev_device_get_devnum(dev
)) != 0)
837 udev_watch_end(event
->udev
, dev
);
839 udev_rules_apply_to_event(rules
, event
,
840 timeout_usec
, timeout_warn_usec
,
843 if (major(udev_device_get_devnum(dev
)) != 0)
844 udev_node_remove(dev
);
846 event
->dev_db
= udev_device_clone_with_db(dev
);
847 if (event
->dev_db
!= NULL
) {
848 /* disable watch during event processing */
849 if (major(udev_device_get_devnum(dev
)) != 0)
850 udev_watch_end(event
->udev
, event
->dev_db
);
853 if (major(udev_device_get_devnum(dev
)) == 0 &&
854 streq(udev_device_get_action(dev
), "move"))
855 udev_device_copy_properties(dev
, event
->dev_db
);
857 udev_rules_apply_to_event(rules
, event
,
858 timeout_usec
, timeout_warn_usec
,
861 /* rename a new network interface, if needed */
862 if (udev_device_get_ifindex(dev
) > 0 && streq(udev_device_get_action(dev
), "add") &&
863 event
->name
!= NULL
&& !streq(event
->name
, udev_device_get_sysname(dev
))) {
866 r
= rename_netif(event
);
868 log_warning_errno(r
, "could not rename interface '%d' from '%s' to '%s': %m", udev_device_get_ifindex(dev
),
869 udev_device_get_sysname(dev
), event
->name
);
871 r
= udev_device_rename(dev
, event
->name
);
873 log_warning_errno(r
, "renamed interface '%d' from '%s' to '%s', but could not update udev_device: %m",
874 udev_device_get_ifindex(dev
), udev_device_get_sysname(dev
), event
->name
);
876 log_debug("changed devpath to '%s'", udev_device_get_devpath(dev
));
880 if (major(udev_device_get_devnum(dev
)) > 0) {
883 /* remove/update possible left-over symlinks from old database entry */
884 if (event
->dev_db
!= NULL
)
885 udev_node_update_old_links(dev
, event
->dev_db
);
887 if (!event
->owner_set
)
888 event
->uid
= udev_device_get_devnode_uid(dev
);
890 if (!event
->group_set
)
891 event
->gid
= udev_device_get_devnode_gid(dev
);
893 if (!event
->mode_set
) {
894 if (udev_device_get_devnode_mode(dev
) > 0) {
895 /* kernel supplied value */
896 event
->mode
= udev_device_get_devnode_mode(dev
);
897 } else if (event
->gid
> 0) {
898 /* default 0660 if a group is assigned */
906 apply
= streq(udev_device_get_action(dev
), "add") || event
->owner_set
|| event
->group_set
|| event
->mode_set
;
907 udev_node_add(dev
, apply
, event
->mode
, event
->uid
, event
->gid
, &event
->seclabel_list
);
910 /* preserve old, or get new initialization timestamp */
911 udev_device_ensure_usec_initialized(event
->dev
, event
->dev_db
);
913 /* (re)write database file */
914 udev_device_tag_index(dev
, event
->dev_db
, true);
915 udev_device_update_db(dev
);
916 udev_device_set_is_initialized(dev
);
918 event
->dev_db
= udev_device_unref(event
->dev_db
);
922 void udev_event_execute_run(struct udev_event
*event
, usec_t timeout_usec
, usec_t timeout_warn_usec
) {
923 struct udev_list_entry
*list_entry
;
925 udev_list_entry_foreach(list_entry
, udev_list_get_entry(&event
->run_list
)) {
926 char command
[UTIL_PATH_SIZE
];
927 const char *cmd
= udev_list_entry_get_name(list_entry
);
928 enum udev_builtin_cmd builtin_cmd
= udev_list_entry_get_num(list_entry
);
930 udev_event_apply_format(event
, cmd
, command
, sizeof(command
));
932 if (builtin_cmd
< UDEV_BUILTIN_MAX
)
933 udev_builtin_run(event
->dev
, builtin_cmd
, command
, false);
935 if (event
->exec_delay
> 0) {
936 log_debug("delay execution of '%s'", command
);
937 sleep(event
->exec_delay
);
940 udev_event_spawn(event
, timeout_usec
, timeout_warn_usec
, false, command
, NULL
, 0);