2 * Copyright (C) 2003-2010 Kay Sievers <kay.sievers@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/ioctl.h>
29 #include <sys/prctl.h>
31 #include <sys/epoll.h>
33 #include <sys/socket.h>
34 #include <sys/signalfd.h>
35 #include <linux/sockios.h>
39 struct udev_event
*udev_event_new(struct udev_device
*dev
)
41 struct udev
*udev
= udev_device_get_udev(dev
);
42 struct udev_event
*event
;
44 event
= calloc(1, sizeof(struct udev_event
));
49 udev_list_init(udev
, &event
->run_list
, false);
50 event
->fd_signal
= -1;
51 event
->birth_usec
= now_usec();
52 event
->timeout_usec
= 30 * 1000 * 1000;
56 void udev_event_unref(struct udev_event
*event
)
60 udev_list_cleanup(&event
->run_list
);
61 free(event
->program_result
);
66 size_t udev_event_apply_format(struct udev_event
*event
, const char *src
, char *dest
, size_t size
)
68 struct udev_device
*dev
= event
->dev
;
88 static const struct subst_map
{
93 { .name
= "devnode", .fmt
= 'N', .type
= SUBST_DEVNODE
},
94 { .name
= "tempnode", .fmt
= 'N', .type
= SUBST_DEVNODE
},
95 { .name
= "attr", .fmt
= 's', .type
= SUBST_ATTR
},
96 { .name
= "sysfs", .fmt
= 's', .type
= SUBST_ATTR
},
97 { .name
= "env", .fmt
= 'E', .type
= SUBST_ENV
},
98 { .name
= "kernel", .fmt
= 'k', .type
= SUBST_KERNEL
},
99 { .name
= "number", .fmt
= 'n', .type
= SUBST_KERNEL_NUMBER
},
100 { .name
= "driver", .fmt
= 'd', .type
= SUBST_DRIVER
},
101 { .name
= "devpath", .fmt
= 'p', .type
= SUBST_DEVPATH
},
102 { .name
= "id", .fmt
= 'b', .type
= SUBST_ID
},
103 { .name
= "major", .fmt
= 'M', .type
= SUBST_MAJOR
},
104 { .name
= "minor", .fmt
= 'm', .type
= SUBST_MINOR
},
105 { .name
= "result", .fmt
= 'c', .type
= SUBST_RESULT
},
106 { .name
= "parent", .fmt
= 'P', .type
= SUBST_PARENT
},
107 { .name
= "name", .fmt
= 'D', .type
= SUBST_NAME
},
108 { .name
= "links", .fmt
= 'L', .type
= SUBST_LINKS
},
109 { .name
= "root", .fmt
= 'r', .type
= SUBST_ROOT
},
110 { .name
= "sys", .fmt
= 'S', .type
= SUBST_SYS
},
121 enum subst_type type
= SUBST_UNKNOWN
;
122 char attrbuf
[UTIL_PATH_SIZE
];
125 while (from
[0] != '\0') {
126 if (from
[0] == '$') {
127 /* substitute named variable */
130 if (from
[1] == '$') {
135 for (i
= 0; i
< ARRAY_SIZE(map
); i
++) {
136 if (strncmp(&from
[1], map
[i
].name
, strlen(map
[i
].name
)) == 0) {
138 from
+= strlen(map
[i
].name
)+1;
142 } else if (from
[0] == '%') {
143 /* substitute format char */
146 if (from
[1] == '%') {
151 for (i
= 0; i
< ARRAY_SIZE(map
); i
++) {
152 if (from
[1] == map
[i
].fmt
) {
171 /* extract possible $format{attr} */
172 if (from
[0] == '{') {
176 for (i
= 0; from
[i
] != '}'; i
++) {
177 if (from
[i
] == '\0') {
178 log_error("missing closing brace for format '%s'\n", src
);
182 if (i
>= sizeof(attrbuf
))
184 memcpy(attrbuf
, from
, i
);
194 l
= util_strpcpy(&s
, l
, udev_device_get_devpath(dev
));
197 l
= util_strpcpy(&s
, l
, udev_device_get_sysname(dev
));
199 case SUBST_KERNEL_NUMBER
:
200 if (udev_device_get_sysnum(dev
) == NULL
)
202 l
= util_strpcpy(&s
, l
, udev_device_get_sysnum(dev
));
205 if (event
->dev_parent
== NULL
)
207 l
= util_strpcpy(&s
, l
, udev_device_get_sysname(event
->dev_parent
));
212 if (event
->dev_parent
== NULL
)
215 driver
= udev_device_get_driver(event
->dev_parent
);
218 l
= util_strpcpy(&s
, l
, driver
);
222 char num
[UTIL_PATH_SIZE
];
224 sprintf(num
, "%d", major(udev_device_get_devnum(dev
)));
225 l
= util_strpcpy(&s
, l
, num
);
229 char num
[UTIL_PATH_SIZE
];
231 sprintf(num
, "%d", minor(udev_device_get_devnum(dev
)));
232 l
= util_strpcpy(&s
, l
, num
);
239 if (event
->program_result
== NULL
)
241 /* get part part of the result string */
244 i
= strtoul(attr
, &rest
, 10);
246 char result
[UTIL_PATH_SIZE
];
247 char tmp
[UTIL_PATH_SIZE
];
250 util_strscpy(result
, sizeof(result
), event
->program_result
);
253 while (cpos
[0] != '\0' && !isspace(cpos
[0]))
255 while (isspace(cpos
[0]))
259 log_error("requested part of result string not found\n");
262 util_strscpy(tmp
, sizeof(tmp
), cpos
);
263 /* %{2+}c copies the whole string from the second part on */
264 if (rest
[0] != '+') {
265 cpos
= strchr(tmp
, ' ');
269 l
= util_strpcpy(&s
, l
, tmp
);
271 l
= util_strpcpy(&s
, l
, event
->program_result
);
276 const char *value
= NULL
;
277 char vbuf
[UTIL_NAME_SIZE
];
282 log_error("missing file parameter for attr\n");
286 /* try to read the value specified by "[dmi/id]product_name" */
287 if (util_resolve_subsys_kernel(event
->udev
, attr
, vbuf
, sizeof(vbuf
), 1) == 0)
290 /* try to read the attribute the device */
292 value
= udev_device_get_sysattr_value(event
->dev
, attr
);
294 /* try to read the attribute of the parent device, other matches have selected */
295 if (value
== NULL
&& event
->dev_parent
!= NULL
&& event
->dev_parent
!= event
->dev
)
296 value
= udev_device_get_sysattr_value(event
->dev_parent
, attr
);
301 /* strip trailing whitespace, and replace unwanted characters */
303 util_strscpy(vbuf
, sizeof(vbuf
), value
);
305 while (len
> 0 && isspace(vbuf
[--len
]))
307 count
= util_replace_chars(vbuf
, UDEV_ALLOWED_CHARS_INPUT
);
309 log_debug("%i character(s) replaced\n" , count
);
310 l
= util_strpcpy(&s
, l
, vbuf
);
314 struct udev_device
*dev_parent
;
317 dev_parent
= udev_device_get_parent(event
->dev
);
318 if (dev_parent
== NULL
)
320 devnode
= udev_device_get_devnode(dev_parent
);
321 if (devnode
!= NULL
) {
322 size_t devlen
= strlen(udev_get_dev_path(event
->udev
))+1;
324 l
= util_strpcpy(&s
, l
, &devnode
[devlen
]);
329 if (udev_device_get_devnode(dev
) != NULL
)
330 l
= util_strpcpy(&s
, l
, udev_device_get_devnode(dev
));
333 if (event
->name
!= NULL
) {
334 l
= util_strpcpy(&s
, l
, event
->name
);
335 } else if (udev_device_get_devnode(dev
) != NULL
) {
336 size_t devlen
= strlen(udev_get_dev_path(event
->udev
))+1;
338 l
= util_strpcpy(&s
, l
, &udev_device_get_devnode(dev
)[devlen
]);
340 l
= util_strpcpy(&s
, l
, udev_device_get_sysname(dev
));
345 size_t devlen
= strlen(udev_get_dev_path(event
->udev
))+1;
346 struct udev_list_entry
*list_entry
;
348 list_entry
= udev_device_get_devlinks_list_entry(dev
);
349 if (list_entry
== NULL
)
351 l
= util_strpcpy(&s
, l
, &udev_list_entry_get_name(list_entry
)[devlen
]);
352 udev_list_entry_foreach(list_entry
, udev_list_entry_get_next(list_entry
))
353 l
= util_strpcpyl(&s
, l
, " ", &udev_list_entry_get_name(list_entry
)[devlen
], NULL
);
357 l
= util_strpcpy(&s
, l
, udev_get_dev_path(event
->udev
));
360 l
= util_strpcpy(&s
, l
, udev_get_sys_path(event
->udev
));
368 value
= udev_device_get_property_value(event
->dev
, attr
);
371 l
= util_strpcpy(&s
, l
, value
);
375 log_error("unknown substitution type=%i\n", type
);
385 static int spawn_exec(struct udev_event
*event
,
386 const char *cmd
, char *const argv
[], char **envp
, const sigset_t
*sigmask
,
387 int fd_stdout
, int fd_stderr
)
389 struct udev
*udev
= event
->udev
;
393 /* discard child output or connect to pipe */
394 fd
= open("/dev/null", O_RDWR
);
396 dup2(fd
, STDIN_FILENO
);
398 dup2(fd
, STDOUT_FILENO
);
400 dup2(fd
, STDERR_FILENO
);
403 log_error("open /dev/null failed: %m\n");
406 /* connect pipes to std{out,err} */
407 if (fd_stdout
>= 0) {
408 dup2(fd_stdout
, STDOUT_FILENO
);
411 if (fd_stderr
>= 0) {
412 dup2(fd_stderr
, STDERR_FILENO
);
416 /* terminate child in case parent goes away */
417 prctl(PR_SET_PDEATHSIG
, SIGTERM
);
419 /* restore original udev sigmask before exec */
421 sigprocmask(SIG_SETMASK
, sigmask
, NULL
);
423 execve(argv
[0], argv
, envp
);
427 log_error("failed to execute '%s' '%s': %m\n", argv
[0], cmd
);
431 static void spawn_read(struct udev_event
*event
,
433 int fd_stdout
, int fd_stderr
,
434 char *result
, size_t ressize
)
436 struct udev
*udev
= event
->udev
;
439 struct epoll_event ep_outpipe
, ep_errpipe
;
441 /* read from child if requested */
442 if (fd_stdout
< 0 && fd_stderr
< 0)
445 fd_ep
= epoll_create1(EPOLL_CLOEXEC
);
447 log_error("error creating epoll fd: %m\n");
451 if (fd_stdout
>= 0) {
452 memset(&ep_outpipe
, 0, sizeof(struct epoll_event
));
453 ep_outpipe
.events
= EPOLLIN
;
454 ep_outpipe
.data
.ptr
= &fd_stdout
;
455 if (epoll_ctl(fd_ep
, EPOLL_CTL_ADD
, fd_stdout
, &ep_outpipe
) < 0) {
456 log_error("fail to add fd to epoll: %m\n");
461 if (fd_stderr
>= 0) {
462 memset(&ep_errpipe
, 0, sizeof(struct epoll_event
));
463 ep_errpipe
.events
= EPOLLIN
;
464 ep_errpipe
.data
.ptr
= &fd_stderr
;
465 if (epoll_ctl(fd_ep
, EPOLL_CTL_ADD
, fd_stderr
, &ep_errpipe
) < 0) {
466 log_error("fail to add fd to epoll: %m\n");
471 /* read child output */
472 while (fd_stdout
>= 0 || fd_stderr
>= 0) {
475 struct epoll_event ev
[4];
478 if (event
->timeout_usec
> 0) {
479 unsigned long long age_usec
;
481 age_usec
= now_usec() - event
->birth_usec
;
482 if (age_usec
>= event
->timeout_usec
) {
483 log_error("timeout '%s'\n", cmd
);
486 timeout
= ((event
->timeout_usec
- age_usec
) / 1000) + 1000;
491 fdcount
= epoll_wait(fd_ep
, ev
, ARRAY_SIZE(ev
), timeout
);
495 log_error("failed to poll: %m\n");
499 log_error("timeout '%s'\n", cmd
);
503 for (i
= 0; i
< fdcount
; i
++) {
504 int *fd
= (int *)ev
[i
].data
.ptr
;
506 if (ev
[i
].events
& EPOLLIN
) {
510 count
= read(*fd
, buf
, sizeof(buf
)-1);
515 /* store stdout result */
516 if (result
!= NULL
&& *fd
== fd_stdout
) {
517 if (respos
+ count
< ressize
) {
518 memcpy(&result
[respos
], buf
, count
);
521 log_error("'%s' ressize %zd too short\n", cmd
, ressize
);
525 /* log debug output only if we watch stderr */
526 if (fd_stderr
>= 0) {
531 while ((line
= strsep(&pos
, "\n"))) {
532 if (pos
!= NULL
|| line
[0] != '\0')
533 log_debug("'%s'(%s) '%s'\n", cmd
, *fd
== fd_stdout
? "out" : "err" , line
);
536 } else if (ev
[i
].events
& EPOLLHUP
) {
537 if (epoll_ctl(fd_ep
, EPOLL_CTL_DEL
, *fd
, NULL
) < 0) {
538 log_error("failed to remove fd from epoll: %m\n");
546 /* return the child's stdout string */
548 result
[respos
] = '\0';
554 static int spawn_wait(struct udev_event
*event
, const char *cmd
, pid_t pid
)
556 struct udev
*udev
= event
->udev
;
557 struct pollfd pfd
[1];
560 pfd
[0].events
= POLLIN
;
561 pfd
[0].fd
= event
->fd_signal
;
567 if (event
->timeout_usec
> 0) {
568 unsigned long long age_usec
;
570 age_usec
= now_usec() - event
->birth_usec
;
571 if (age_usec
>= event
->timeout_usec
)
574 timeout
= ((event
->timeout_usec
- age_usec
) / 1000) + 1000;
579 fdcount
= poll(pfd
, 1, timeout
);
584 log_error("failed to poll: %m\n");
588 log_error("timeout: killing '%s' [%u]\n", cmd
, pid
);
592 if (pfd
[0].revents
& POLLIN
) {
593 struct signalfd_siginfo fdsi
;
597 size
= read(event
->fd_signal
, &fdsi
, sizeof(struct signalfd_siginfo
));
598 if (size
!= sizeof(struct signalfd_siginfo
))
601 switch (fdsi
.ssi_signo
) {
603 event
->sigterm
= true;
606 if (waitpid(pid
, &status
, WNOHANG
) < 0)
608 if (WIFEXITED(status
)) {
609 log_debug("'%s' [%u] exit with return code %i\n", cmd
, pid
, WEXITSTATUS(status
));
610 if (WEXITSTATUS(status
) != 0)
612 } else if (WIFSIGNALED(status
)) {
613 log_error("'%s' [%u] terminated by signal %i (%s)\n", cmd
, pid
, WTERMSIG(status
), strsignal(WTERMSIG(status
)));
615 } else if (WIFSTOPPED(status
)) {
616 log_error("'%s' [%u] stopped\n", cmd
, pid
);
618 } else if (WIFCONTINUED(status
)) {
619 log_error("'%s' [%u] continued\n", cmd
, pid
);
622 log_error("'%s' [%u] exit with status 0x%04x\n", cmd
, pid
, status
);
634 int udev_build_argv(struct udev
*udev
, char *cmd
, int *argc
, char *argv
[])
639 if (strchr(cmd
, ' ') == NULL
) {
645 while (pos
!= NULL
&& pos
[0] != '\0') {
646 if (pos
[0] == '\'') {
647 /* do not separate quotes */
649 argv
[i
] = strsep(&pos
, "\'");
651 while (pos
[0] == ' ')
654 argv
[i
] = strsep(&pos
, " ");
656 while (pos
[0] == ' ')
668 int udev_event_spawn(struct udev_event
*event
,
669 const char *cmd
, char **envp
, const sigset_t
*sigmask
,
670 char *result
, size_t ressize
)
672 struct udev
*udev
= event
->udev
;
673 int outpipe
[2] = {-1, -1};
674 int errpipe
[2] = {-1, -1};
676 char arg
[UTIL_PATH_SIZE
];
678 char program
[UTIL_PATH_SIZE
];
681 util_strscpy(arg
, sizeof(arg
), cmd
);
682 udev_build_argv(event
->udev
, arg
, NULL
, argv
);
684 /* pipes from child to parent */
685 if (result
!= NULL
|| udev_get_log_priority(udev
) >= LOG_INFO
) {
686 if (pipe2(outpipe
, O_NONBLOCK
) != 0) {
688 log_error("pipe failed: %m\n");
692 if (udev_get_log_priority(udev
) >= LOG_INFO
) {
693 if (pipe2(errpipe
, O_NONBLOCK
) != 0) {
695 log_error("pipe failed: %m\n");
700 /* allow programs in /usr/lib/udev/ to be called without the path */
701 if (argv
[0][0] != '/') {
702 util_strscpyl(program
, sizeof(program
), UDEVLIBEXECDIR
"/", argv
[0], NULL
);
709 /* child closes parent's ends of pipes */
710 if (outpipe
[READ_END
] >= 0) {
711 close(outpipe
[READ_END
]);
712 outpipe
[READ_END
] = -1;
714 if (errpipe
[READ_END
] >= 0) {
715 close(errpipe
[READ_END
]);
716 errpipe
[READ_END
] = -1;
719 log_debug("starting '%s'\n", cmd
);
721 err
= spawn_exec(event
, cmd
, argv
, envp
, sigmask
,
722 outpipe
[WRITE_END
], errpipe
[WRITE_END
]);
726 log_error("fork of '%s' failed: %m\n", cmd
);
730 /* parent closed child's ends of pipes */
731 if (outpipe
[WRITE_END
] >= 0) {
732 close(outpipe
[WRITE_END
]);
733 outpipe
[WRITE_END
] = -1;
735 if (errpipe
[WRITE_END
] >= 0) {
736 close(errpipe
[WRITE_END
]);
737 errpipe
[WRITE_END
] = -1;
740 spawn_read(event
, cmd
,
741 outpipe
[READ_END
], errpipe
[READ_END
],
744 err
= spawn_wait(event
, cmd
, pid
);
748 if (outpipe
[READ_END
] >= 0)
749 close(outpipe
[READ_END
]);
750 if (outpipe
[WRITE_END
] >= 0)
751 close(outpipe
[WRITE_END
]);
752 if (errpipe
[READ_END
] >= 0)
753 close(errpipe
[READ_END
]);
754 if (errpipe
[WRITE_END
] >= 0)
755 close(errpipe
[WRITE_END
]);
759 static void rename_netif_kernel_log(struct ifreq ifr
)
764 klog
= open("/dev/kmsg", O_WRONLY
);
768 f
= fdopen(klog
, "w");
774 fprintf(f
, "<30>udevd[%u]: renamed network interface %s to %s\n",
775 getpid(), ifr
.ifr_name
, ifr
.ifr_newname
);
779 static int rename_netif(struct udev_event
*event
)
781 struct udev_device
*dev
= event
->dev
;
787 log_debug("changing net interface name from '%s' to '%s'\n",
788 udev_device_get_sysname(dev
), event
->name
);
790 sk
= socket(PF_INET
, SOCK_DGRAM
, 0);
793 log_error("error opening socket: %m\n");
797 memset(&ifr
, 0x00, sizeof(struct ifreq
));
798 util_strscpy(ifr
.ifr_name
, IFNAMSIZ
, udev_device_get_sysname(dev
));
799 util_strscpy(ifr
.ifr_newname
, IFNAMSIZ
, event
->name
);
800 err
= ioctl(sk
, SIOCSIFNAME
, &ifr
);
802 rename_netif_kernel_log(ifr
);
806 /* keep trying if the destination interface name already exists */
811 /* free our own name, another process may wait for us */
812 snprintf(ifr
.ifr_newname
, IFNAMSIZ
, "rename%u", udev_device_get_ifindex(dev
));
813 err
= ioctl(sk
, SIOCSIFNAME
, &ifr
);
819 /* log temporary name */
820 rename_netif_kernel_log(ifr
);
822 /* wait a maximum of 90 seconds for our target to become available */
823 util_strscpy(ifr
.ifr_name
, IFNAMSIZ
, ifr
.ifr_newname
);
824 util_strscpy(ifr
.ifr_newname
, IFNAMSIZ
, event
->name
);
827 const struct timespec duration
= { 0, 1000 * 1000 * 1000 / 20 };
829 nanosleep(&duration
, NULL
);
831 err
= ioctl(sk
, SIOCSIFNAME
, &ifr
);
833 rename_netif_kernel_log(ifr
);
843 log_error("error changing net interface name %s to %s: %m\n", ifr
.ifr_name
, ifr
.ifr_newname
);
848 int udev_event_execute_rules(struct udev_event
*event
, struct udev_rules
*rules
, const sigset_t
*sigmask
)
850 struct udev_device
*dev
= event
->dev
;
853 if (udev_device_get_subsystem(dev
) == NULL
)
856 if (strcmp(udev_device_get_action(dev
), "remove") == 0) {
857 udev_device_read_db(dev
, NULL
);
858 udev_device_delete_db(dev
);
859 udev_device_tag_index(dev
, NULL
, false);
861 if (major(udev_device_get_devnum(dev
)) != 0)
862 udev_watch_end(event
->udev
, dev
);
864 udev_rules_apply_to_event(rules
, event
, sigmask
);
866 if (major(udev_device_get_devnum(dev
)) != 0)
867 udev_node_remove(dev
);
869 event
->dev_db
= udev_device_new_from_syspath(event
->udev
, udev_device_get_syspath(dev
));
870 if (event
->dev_db
!= NULL
) {
871 udev_device_read_db(event
->dev_db
, NULL
);
872 udev_device_set_info_loaded(event
->dev_db
);
874 /* disable watch during event processing */
875 if (major(udev_device_get_devnum(dev
)) != 0)
876 udev_watch_end(event
->udev
, event
->dev_db
);
879 udev_rules_apply_to_event(rules
, event
, sigmask
);
881 /* rename a new network interface, if needed */
882 if (udev_device_get_ifindex(dev
) > 0 && strcmp(udev_device_get_action(dev
), "add") == 0 &&
883 event
->name
!= NULL
&& strcmp(event
->name
, udev_device_get_sysname(dev
)) != 0) {
884 char syspath
[UTIL_PATH_SIZE
];
887 err
= rename_netif(event
);
889 log_debug("renamed netif to '%s'\n", event
->name
);
891 /* remember old name */
892 udev_device_add_property(dev
, "INTERFACE_OLD", udev_device_get_sysname(dev
));
894 /* now change the devpath, because the kernel device name has changed */
895 util_strscpy(syspath
, sizeof(syspath
), udev_device_get_syspath(dev
));
896 pos
= strrchr(syspath
, '/');
899 util_strscpy(pos
, sizeof(syspath
) - (pos
- syspath
), event
->name
);
900 udev_device_set_syspath(event
->dev
, syspath
);
901 udev_device_add_property(dev
, "INTERFACE", udev_device_get_sysname(dev
));
902 log_debug("changed devpath to '%s'\n", udev_device_get_devpath(dev
));
907 if (major(udev_device_get_devnum(dev
)) > 0) {
908 /* remove/update possible left-over symlinks from old database entry */
909 if (event
->dev_db
!= NULL
)
910 udev_node_update_old_links(dev
, event
->dev_db
);
912 if (!event
->mode_set
) {
913 if (udev_device_get_devnode_mode(dev
) > 0) {
914 /* kernel supplied value */
915 event
->mode
= udev_device_get_devnode_mode(dev
);
916 } else if (event
->gid
> 0) {
917 /* default 0660 if a group is assigned */
925 udev_node_add(dev
, event
->mode
, event
->uid
, event
->gid
);
928 /* preserve old, or get new initialization timestamp */
929 if (event
->dev_db
!= NULL
&& udev_device_get_usec_initialized(event
->dev_db
) > 0)
930 udev_device_set_usec_initialized(event
->dev
, udev_device_get_usec_initialized(event
->dev_db
));
931 else if (udev_device_get_usec_initialized(event
->dev
) == 0)
932 udev_device_set_usec_initialized(event
->dev
, now_usec());
934 /* (re)write database file */
935 udev_device_update_db(dev
);
936 udev_device_tag_index(dev
, event
->dev_db
, true);
937 udev_device_set_is_initialized(dev
);
939 udev_device_unref(event
->dev_db
);
940 event
->dev_db
= NULL
;
946 void udev_event_execute_run(struct udev_event
*event
, const sigset_t
*sigmask
)
948 struct udev_list_entry
*list_entry
;
950 udev_list_entry_foreach(list_entry
, udev_list_get_entry(&event
->run_list
)) {
951 const char *cmd
= udev_list_entry_get_name(list_entry
);
952 enum udev_builtin_cmd builtin_cmd
= udev_list_entry_get_num(list_entry
);
954 if (builtin_cmd
< UDEV_BUILTIN_MAX
) {
955 char command
[UTIL_PATH_SIZE
];
957 udev_event_apply_format(event
, cmd
, command
, sizeof(command
));
958 udev_builtin_run(event
->dev
, builtin_cmd
, command
, false);
959 } else if (strncmp(cmd
, "socket:", strlen("socket:")) == 0) {
960 struct udev_monitor
*monitor
;
962 monitor
= udev_monitor_new_from_socket(event
->udev
, &cmd
[strlen("socket:")]);
965 udev_monitor_send_device(monitor
, NULL
, event
->dev
);
966 udev_monitor_unref(monitor
);
968 char program
[UTIL_PATH_SIZE
];
971 if (event
->exec_delay
> 0) {
972 log_debug("delay execution of '%s'\n", program
);
973 sleep(event
->exec_delay
);
976 udev_event_apply_format(event
, cmd
, program
, sizeof(program
));
977 envp
= udev_device_get_properties_envp(event
->dev
);
978 udev_event_spawn(event
, program
, envp
, sigmask
, NULL
, 0);