1 /***
2 This file is part of systemd.
3
4 Copyright 2007-2012 Kay Sievers <kay@vrfy.org>
5
6 systemd is free software; you can redistribute it and/or modify it
7 under the terms of the GNU Lesser General Public License as published by
8 the Free Software Foundation; either version 2.1 of the License, or
9 (at your option) any later version.
10
11 systemd is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public License
17 along with systemd; If not, see <http://www.gnu.org/licenses/>.
18 ***/
19
20 #include <unistd.h>
21 #include <stdio.h>
22 #include <stdlib.h>
23 #include <stddef.h>
24 #include <string.h>
25 #include <errno.h>
26 #include <getopt.h>
27
28 #include "udev.h"
29
30 static bool initialized;
31
32 static const struct udev_builtin *builtins[] = {
33 #ifdef HAVE_BLKID
34 [UDEV_BUILTIN_BLKID] = &udev_builtin_blkid,
35 #endif
36 [UDEV_BUILTIN_BTRFS] = &udev_builtin_btrfs,
37 [UDEV_BUILTIN_HWDB] = &udev_builtin_hwdb,
38 [UDEV_BUILTIN_INPUT_ID] = &udev_builtin_input_id,
39 [UDEV_BUILTIN_KEYBOARD] = &udev_builtin_keyboard,
40 #ifdef HAVE_KMOD
41 [UDEV_BUILTIN_KMOD] = &udev_builtin_kmod,
42 #endif
43 [UDEV_BUILTIN_NET_ID] = &udev_builtin_net_id,
44 [UDEV_BUILTIN_PATH_ID] = &udev_builtin_path_id,
45 [UDEV_BUILTIN_USB_ID] = &udev_builtin_usb_id,
46 };
47
udev_builtin_init(struct udev * udev)48 void udev_builtin_init(struct udev *udev) {
49 unsigned int i;
50
51 if (initialized)
52 return;
53
54 for (i = 0; i < ELEMENTSOF(builtins); i++)
55 if (builtins[i]->init)
56 builtins[i]->init(udev);
57
58 initialized = true;
59 }
60
udev_builtin_exit(struct udev * udev)61 void udev_builtin_exit(struct udev *udev) {
62 unsigned int i;
63
64 if (!initialized)
65 return;
66
67 for (i = 0; i < ELEMENTSOF(builtins); i++)
68 if (builtins[i]->exit)
69 builtins[i]->exit(udev);
70
71 initialized = false;
72 }
73
udev_builtin_validate(struct udev * udev)74 bool udev_builtin_validate(struct udev *udev) {
75 unsigned int i;
76
77 for (i = 0; i < ELEMENTSOF(builtins); i++)
78 if (builtins[i]->validate && builtins[i]->validate(udev))
79 return true;
80 return false;
81 }
82
udev_builtin_list(struct udev * udev)83 void udev_builtin_list(struct udev *udev) {
84 unsigned int i;
85
86 for (i = 0; i < ELEMENTSOF(builtins); i++)
87 fprintf(stderr, " %-14s %s\n", builtins[i]->name, builtins[i]->help);
88 }
89
udev_builtin_name(enum udev_builtin_cmd cmd)90 const char *udev_builtin_name(enum udev_builtin_cmd cmd) {
91 return builtins[cmd]->name;
92 }
93
udev_builtin_run_once(enum udev_builtin_cmd cmd)94 bool udev_builtin_run_once(enum udev_builtin_cmd cmd) {
95 return builtins[cmd]->run_once;
96 }
97
udev_builtin_lookup(const char * command)98 enum udev_builtin_cmd udev_builtin_lookup(const char *command) {
99 char name[UTIL_PATH_SIZE];
100 enum udev_builtin_cmd i;
101 char *pos;
102
103 strscpy(name, sizeof(name), command);
104 pos = strchr(name, ' ');
105 if (pos)
106 pos[0] = '\0';
107 for (i = 0; i < ELEMENTSOF(builtins); i++)
108 if (streq(builtins[i]->name, name))
109 return i;
110 return UDEV_BUILTIN_MAX;
111 }
112
udev_builtin_run(struct udev_device * dev,enum udev_builtin_cmd cmd,const char * command,bool test)113 int udev_builtin_run(struct udev_device *dev, enum udev_builtin_cmd cmd, const char *command, bool test) {
114 char arg[UTIL_PATH_SIZE];
115 int argc;
116 char *argv[128];
117
118 /* we need '0' here to reset the internal state */
119 optind = 0;
120 strscpy(arg, sizeof(arg), command);
121 udev_build_argv(udev_device_get_udev(dev), arg, &argc, argv);
122 return builtins[cmd]->cmd(dev, argc, argv, test);
123 }
124
udev_builtin_add_property(struct udev_device * dev,bool test,const char * key,const char * val)125 int udev_builtin_add_property(struct udev_device *dev, bool test, const char *key, const char *val) {
126 udev_device_add_property(dev, key, val);
127
128 if (test)
129 printf("%s=%s\n", key, val);
130 return 0;
131 }
132