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Commit | Line | Data |
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f0083e3d | 1 | /* |
e8d569b4 | 2 | * Copyright (C) 2003-2004 Greg Kroah-Hartman <greg@kroah.com> |
55e9959b | 3 | * Copyright (C) 2004-2008 Kay Sievers <kay.sievers@vrfy.org> |
f0083e3d | 4 | * |
55e9959b KS |
5 | * This program is free software: you can redistribute it and/or modify |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation, either version 2 of the License, or | |
8 | * (at your option) any later version. | |
f0083e3d | 9 | * |
55e9959b KS |
10 | * This program is distributed in the hope that it will be useful, |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
f0083e3d GKH |
17 | */ |
18 | ||
c81b35c0 KS |
19 | #include <stdio.h> |
20 | #include <stddef.h> | |
f0083e3d GKH |
21 | #include <stdlib.h> |
22 | #include <string.h> | |
c449b25e | 23 | #include <fcntl.h> |
e8baccca | 24 | #include <ctype.h> |
c81b35c0 | 25 | #include <errno.h> |
1ceba936 | 26 | #include <unistd.h> |
27f877e6 | 27 | #include <syslog.h> |
44aff4cd | 28 | #include <grp.h> |
2181d30a | 29 | #include <sys/signalfd.h> |
85511f02 | 30 | |
f0083e3d | 31 | #include "udev.h" |
f0083e3d | 32 | |
dd8a93e0 KS |
33 | void udev_main_log(struct udev *udev, int priority, |
34 | const char *file, int line, const char *fn, | |
35 | const char *format, va_list args) {} | |
36 | ||
59345311 | 37 | int main(int argc, char *argv[]) |
f4dc8d11 | 38 | { |
7d563a17 | 39 | struct udev *udev; |
2181d30a KS |
40 | struct udev_event *event = NULL; |
41 | struct udev_device *dev = NULL; | |
42 | struct udev_rules *rules = NULL; | |
aa8734ff | 43 | char syspath[UTIL_PATH_SIZE]; |
8544c9ad | 44 | const char *devpath; |
aa8734ff | 45 | const char *action; |
2181d30a | 46 | sigset_t mask, sigmask_orig; |
aa8734ff | 47 | int err = -EINVAL; |
f4dc8d11 | 48 | |
7d563a17 KS |
49 | udev = udev_new(); |
50 | if (udev == NULL) | |
51 | exit(1); | |
aa8734ff | 52 | info(udev, "version %s\n", VERSION); |
c3b1fa66 | 53 | udev_selinux_init(udev); |
51737eb8 | 54 | |
2181d30a | 55 | sigprocmask(SIG_SETMASK, NULL, &sigmask_orig); |
7e89a569 | 56 | |
220893b3 KS |
57 | action = argv[1]; |
58 | if (action == NULL) { | |
59 | err(udev, "action missing\n"); | |
60 | goto out; | |
61 | } | |
7e0bd584 | 62 | |
220893b3 KS |
63 | devpath = argv[2]; |
64 | if (devpath == NULL) { | |
65 | err(udev, "devpath missing\n"); | |
2181d30a | 66 | goto out; |
c449b25e | 67 | } |
f0713480 | 68 | |
154a7b84 | 69 | rules = udev_rules_new(udev, 1); |
821d0ec8 | 70 | |
065db052 | 71 | util_strscpyl(syspath, sizeof(syspath), udev_get_sys_path(udev), devpath, NULL); |
aa8734ff | 72 | dev = udev_device_new_from_syspath(udev, syspath); |
1aa1e248 | 73 | if (dev == NULL) { |
aa8734ff | 74 | info(udev, "unknown device '%s'\n", devpath); |
2181d30a | 75 | goto out; |
1aa1e248 KS |
76 | } |
77 | ||
aa8734ff KS |
78 | udev_device_set_action(dev, action); |
79 | event = udev_event_new(dev); | |
2a94c877 | 80 | |
2181d30a KS |
81 | sigfillset(&mask); |
82 | sigprocmask(SIG_SETMASK, &mask, &sigmask_orig); | |
83 | event->fd_signal = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC); | |
84 | if (event->fd_signal < 0) { | |
85 | fprintf(stderr, "error creating signalfd\n"); | |
86 | goto out; | |
87 | } | |
bf50425b | 88 | |
220893b3 KS |
89 | /* do what devtmpfs usually provides us */ |
90 | if (udev_device_get_devnode(dev) != NULL) { | |
91 | mode_t mode; | |
92 | ||
93 | if (strcmp(udev_device_get_subsystem(dev), "block") == 0) | |
94 | mode |= S_IFBLK; | |
95 | else | |
96 | mode |= S_IFCHR; | |
97 | ||
98 | if (strcmp(action, "remove") != 0) { | |
99 | util_create_path(udev, udev_device_get_devnode(dev)); | |
100 | mknod(udev_device_get_devnode(dev), mode, udev_device_get_devnum(dev)); | |
101 | } else { | |
102 | unlink(udev_device_get_devnode(dev)); | |
103 | util_delete_path(udev, udev_device_get_devnode(dev)); | |
104 | } | |
105 | } | |
106 | ||
2181d30a | 107 | err = udev_event_execute_rules(event, rules, &sigmask_orig); |
f46d2e54 | 108 | if (err == 0) |
d412a685 | 109 | udev_event_execute_run(event, NULL); |
2181d30a KS |
110 | out: |
111 | if (event != NULL && event->fd_signal >= 0) | |
112 | close(event->fd_signal); | |
aa8734ff KS |
113 | udev_event_unref(event); |
114 | udev_device_unref(dev); | |
d7ddce18 | 115 | udev_rules_unref(rules); |
c3b1fa66 | 116 | udev_selinux_exit(udev); |
a035bf27 | 117 | udev_unref(udev); |
aa8734ff | 118 | if (err != 0) |
37854ffc KS |
119 | return 1; |
120 | return 0; | |
f0083e3d | 121 | } |