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Commit | Line | Data |
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be9b51f6 | 1 | /* |
55e9959b | 2 | * Copyright (C) 2004-2008 Kay Sievers <kay.sievers@vrfy.org> |
be9b51f6 | 3 | * |
55e9959b KS |
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. | |
be9b51f6 | 8 | * |
55e9959b KS |
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. | |
13 | * | |
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/>. | |
be9b51f6 KS |
16 | */ |
17 | ||
18 | #include <stdlib.h> | |
19 | #include <string.h> | |
20 | #include <stdio.h> | |
1aa1e248 | 21 | #include <stddef.h> |
034f35d7 | 22 | #include <ctype.h> |
87171e46 KS |
23 | #include <stdarg.h> |
24 | #include <unistd.h> | |
1aa1e248 | 25 | #include <dirent.h> |
87171e46 | 26 | #include <errno.h> |
11f1bb5a | 27 | #include <getopt.h> |
492e76c9 KS |
28 | #include <sys/stat.h> |
29 | #include <sys/types.h> | |
be9b51f6 | 30 | |
869fc2f1 | 31 | #include "udev.h" |
be9b51f6 | 32 | |
93b0f384 | 33 | static void print_all_attributes(struct udev_device *device, const char *key) |
be9b51f6 | 34 | { |
4aa0b15e | 35 | struct udev *udev = udev_device_get_udev(device); |
1aa1e248 KS |
36 | DIR *dir; |
37 | struct dirent *dent; | |
38 | ||
93b0f384 | 39 | dir = opendir(udev_device_get_syspath(device)); |
1aa1e248 KS |
40 | if (dir != NULL) { |
41 | for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) { | |
492e76c9 | 42 | struct stat statbuf; |
17fcfb59 | 43 | char filename[UTIL_PATH_SIZE]; |
93b0f384 | 44 | const char *value; |
1aa1e248 KS |
45 | size_t len; |
46 | ||
492e76c9 KS |
47 | if (dent->d_name[0] == '.') |
48 | continue; | |
49 | ||
e9b64770 KS |
50 | if (strcmp(dent->d_name, "uevent") == 0) |
51 | continue; | |
4c46d72a KS |
52 | if (strcmp(dent->d_name, "dev") == 0) |
53 | continue; | |
e9b64770 | 54 | |
93b0f384 | 55 | util_strlcpy(filename, udev_device_get_syspath(device), sizeof(filename)); |
31c1f537 KS |
56 | util_strlcat(filename, "/", sizeof(filename)); |
57 | util_strlcat(filename, dent->d_name, sizeof(filename)); | |
492e76c9 KS |
58 | if (lstat(filename, &statbuf) != 0) |
59 | continue; | |
60 | if (S_ISLNK(statbuf.st_mode)) | |
61 | continue; | |
62 | ||
93b0f384 KS |
63 | value = udev_device_get_attr_value(device, dent->d_name); |
64 | if (value == NULL) | |
1aa1e248 | 65 | continue; |
7d563a17 | 66 | dbg(udev, "attr '%s'='%s'(%zi)\n", dent->d_name, value, len); |
1aa1e248 | 67 | |
1aa1e248 | 68 | /* skip nonprintable attributes */ |
93b0f384 KS |
69 | len = strlen(value); |
70 | while (len > 0 && isprint(value[len-1])) | |
1aa1e248 | 71 | len--; |
93b0f384 | 72 | if (len > 0) { |
4aa0b15e | 73 | dbg(udev, "attribute value of '%s' non-printable, skip\n", dent->d_name); |
1aa1e248 KS |
74 | continue; |
75 | } | |
6276fdd2 | 76 | |
95776dc6 | 77 | printf(" %s{%s}==\"%s\"\n", key, dent->d_name, value); |
6276fdd2 | 78 | } |
4ad3a37f | 79 | closedir(dir); |
be9b51f6 KS |
80 | } |
81 | printf("\n"); | |
be9b51f6 KS |
82 | } |
83 | ||
93b0f384 | 84 | static int print_device_chain(struct udev_device *device) |
87171e46 | 85 | { |
b2d9e4f2 | 86 | struct udev_device *device_parent; |
4ad3a37f | 87 | const char *str; |
e48fc108 | 88 | |
1aa1e248 | 89 | printf("\n" |
6cf19e52 KS |
90 | "Udevinfo starts with the device specified by the devpath and then\n" |
91 | "walks up the chain of parent devices. It prints for every device\n" | |
92 | "found, all possible attributes in the udev rules key format.\n" | |
93 | "A rule to match, can be composed by the attributes of the device\n" | |
94 | "and the attributes from one single parent device.\n" | |
dba8c18b | 95 | "\n"); |
f61d732a | 96 | |
4ad3a37f KS |
97 | printf(" looking at device '%s':\n", udev_device_get_devpath(device)); |
98 | printf(" KERNEL==\"%s\"\n", udev_device_get_sysname(device)); | |
99 | str = udev_device_get_subsystem(device); | |
100 | if (str == NULL) | |
101 | str = ""; | |
102 | printf(" SUBSYSTEM==\"%s\"\n", str); | |
103 | str = udev_device_get_driver(device); | |
104 | if (str == NULL) | |
105 | str = ""; | |
106 | printf(" DRIVER==\"%s\"\n", str); | |
93b0f384 | 107 | print_all_attributes(device, "ATTR"); |
4ad3a37f | 108 | |
b2d9e4f2 KS |
109 | device_parent = device; |
110 | do { | |
111 | device_parent = udev_device_get_parent(device_parent); | |
4ad3a37f | 112 | if (device_parent == NULL) |
034f35d7 | 113 | break; |
b2d9e4f2 KS |
114 | printf(" looking at parent device '%s':\n", udev_device_get_devpath(device_parent)); |
115 | printf(" KERNELS==\"%s\"\n", udev_device_get_sysname(device_parent)); | |
116 | str = udev_device_get_subsystem(device_parent); | |
4ad3a37f KS |
117 | if (str == NULL) |
118 | str = ""; | |
119 | printf(" SUBSYSTEMS==\"%s\"\n", str); | |
b2d9e4f2 | 120 | str = udev_device_get_driver(device_parent); |
4ad3a37f KS |
121 | if (str == NULL) |
122 | str = ""; | |
123 | printf(" DRIVERS==\"%s\"\n", str); | |
93b0f384 | 124 | print_all_attributes(device_parent, "ATTRS"); |
b2d9e4f2 | 125 | } while (device_parent != NULL); |
be9b51f6 | 126 | |
1aa1e248 KS |
127 | return 0; |
128 | } | |
129 | ||
93b0f384 | 130 | static void print_record(struct udev_device *device) |
31de3a2b | 131 | { |
93b0f384 KS |
132 | size_t len; |
133 | int i; | |
0de33a61 | 134 | struct udev_list_entry *list_entry; |
93b0f384 KS |
135 | |
136 | printf("P: %s\n", udev_device_get_devpath(device)); | |
bf7ad0ea | 137 | |
93b0f384 | 138 | len = strlen(udev_get_dev_path(udev_device_get_udev(device))); |
fb762bb9 | 139 | printf("N: %s\n", &udev_device_get_devnode(device)[len+1]); |
bf7ad0ea | 140 | |
93b0f384 KS |
141 | i = device_get_devlink_priority(device); |
142 | if (i != 0) | |
143 | printf("L: %i\n", i); | |
bf7ad0ea | 144 | |
93b0f384 KS |
145 | i = device_get_num_fake_partitions(device); |
146 | if (i != 0) | |
147 | printf("A:%u\n", i); | |
bf7ad0ea | 148 | |
93b0f384 KS |
149 | i = device_get_ignore_remove(device); |
150 | if (i != 0) | |
151 | printf("R:%u\n", i); | |
93b0f384 | 152 | |
0de33a61 | 153 | udev_list_entry_foreach(list_entry, udev_device_get_devlinks_list_entry(device)) { |
bf7ad0ea | 154 | len = strlen(udev_get_dev_path(udev_device_get_udev(device))); |
0de33a61 | 155 | printf("S: %s\n", &udev_list_entry_get_name(list_entry)[len+1]); |
31de3a2b | 156 | } |
93b0f384 | 157 | |
0de33a61 KS |
158 | udev_list_entry_foreach(list_entry, udev_device_get_properties_list_entry(device)) |
159 | printf("E: %s=%s\n", | |
160 | udev_list_entry_get_name(list_entry), | |
161 | udev_list_entry_get_value(list_entry)); | |
93b0f384 | 162 | |
bf7ad0ea | 163 | printf("\n"); |
31de3a2b KS |
164 | } |
165 | ||
d1acfc3e | 166 | static int stat_device(const char *name, int export, const char *prefix) |
f338bac8 KS |
167 | { |
168 | struct stat statbuf; | |
169 | ||
170 | if (stat(name, &statbuf) != 0) | |
171 | return -1; | |
172 | ||
d1acfc3e KS |
173 | if (export) { |
174 | if (prefix == NULL) | |
175 | prefix = "INFO_"; | |
176 | printf("%sMAJOR=%d\n" | |
177 | "%sMINOR=%d\n", | |
178 | prefix, major(statbuf.st_dev), | |
179 | prefix, minor(statbuf.st_dev)); | |
180 | } else | |
cce9d773 | 181 | printf("%d:%d\n", major(statbuf.st_dev), minor(statbuf.st_dev)); |
f338bac8 KS |
182 | return 0; |
183 | } | |
184 | ||
bf7ad0ea KS |
185 | static int export_devices(struct udev *udev) |
186 | { | |
438d4c3c | 187 | struct udev_enumerate *udev_enumerate; |
0de33a61 | 188 | struct udev_list_entry *list_entry; |
bf7ad0ea | 189 | |
438d4c3c KS |
190 | udev_enumerate = udev_enumerate_new(udev); |
191 | if (udev_enumerate == NULL) | |
bf7ad0ea | 192 | return -1; |
c97f839e | 193 | udev_enumerate_scan_devices(udev_enumerate); |
438d4c3c | 194 | udev_list_entry_foreach(list_entry, udev_enumerate_get_list_entry(udev_enumerate)) { |
bf7ad0ea KS |
195 | struct udev_device *device; |
196 | ||
0de33a61 | 197 | device = udev_device_new_from_syspath(udev, udev_list_entry_get_name(list_entry)); |
bf7ad0ea KS |
198 | if (device != NULL) { |
199 | if (udev_device_get_devnode(device) != NULL) | |
200 | print_record(device); | |
201 | udev_device_unref(device); | |
202 | } | |
bf7ad0ea | 203 | } |
438d4c3c | 204 | udev_enumerate_unref(udev_enumerate); |
bf7ad0ea KS |
205 | return 0; |
206 | } | |
207 | ||
7d563a17 | 208 | int udevadm_info(struct udev *udev, int argc, char *argv[]) |
87171e46 | 209 | { |
93b0f384 | 210 | struct udev_device *device = NULL; |
87171e46 | 211 | int root = 0; |
d1acfc3e KS |
212 | int export = 0; |
213 | const char *export_prefix = NULL; | |
93b0f384 KS |
214 | char path[UTIL_PATH_SIZE]; |
215 | char name[UTIL_PATH_SIZE]; | |
0de33a61 | 216 | struct udev_list_entry *list_entry; |
93b0f384 | 217 | int rc = 0; |
24ca5c33 | 218 | |
e97717ba | 219 | static const struct option options[] = { |
11f1bb5a KS |
220 | { "name", 1, NULL, 'n' }, |
221 | { "path", 1, NULL, 'p' }, | |
222 | { "query", 1, NULL, 'q' }, | |
223 | { "attribute-walk", 0, NULL, 'a' }, | |
224 | { "export-db", 0, NULL, 'e' }, | |
225 | { "root", 0, NULL, 'r' }, | |
f338bac8 | 226 | { "device-id-of-file", 1, NULL, 'd' }, |
d1acfc3e KS |
227 | { "export", 0, NULL, 'x' }, |
228 | { "export-prefix", 1, NULL, 'P' }, | |
88caa9da | 229 | { "version", 0, NULL, 1 }, /* -V outputs braindead format */ |
11f1bb5a KS |
230 | { "help", 0, NULL, 'h' }, |
231 | {} | |
232 | }; | |
233 | ||
24ca5c33 KS |
234 | enum action_type { |
235 | ACTION_NONE, | |
236 | ACTION_QUERY, | |
237 | ACTION_ATTRIBUTE_WALK, | |
238 | ACTION_ROOT, | |
f338bac8 | 239 | ACTION_DEVICE_ID_FILE, |
24ca5c33 KS |
240 | } action = ACTION_NONE; |
241 | ||
b8476286 KS |
242 | enum query_type { |
243 | QUERY_NONE, | |
244 | QUERY_NAME, | |
245 | QUERY_PATH, | |
246 | QUERY_SYMLINK, | |
247 | QUERY_ENV, | |
248 | QUERY_ALL, | |
249 | } query = QUERY_NONE; | |
24ca5c33 | 250 | |
87171e46 | 251 | while (1) { |
7d563a17 | 252 | int option; |
bf7ad0ea | 253 | struct stat statbuf; |
7d563a17 | 254 | |
d1acfc3e | 255 | option = getopt_long(argc, argv, "aed:n:p:q:rxPVh", options, NULL); |
87171e46 KS |
256 | if (option == -1) |
257 | break; | |
258 | ||
7d563a17 | 259 | dbg(udev, "option '%c'\n", option); |
87171e46 KS |
260 | switch (option) { |
261 | case 'n': | |
93b0f384 KS |
262 | if (device != NULL) { |
263 | fprintf(stderr, "device already specified\n"); | |
264 | rc = 2; | |
265 | goto exit; | |
266 | } | |
2362eea6 | 267 | /* remove /dev if given */ |
bf7ad0ea KS |
268 | if (strncmp(optarg, udev_get_dev_path(udev), strlen(udev_get_dev_path(udev))) != 0) { |
269 | util_strlcpy(name, udev_get_dev_path(udev), sizeof(name)); | |
270 | util_strlcat(name, "/", sizeof(name)); | |
271 | util_strlcat(name, optarg, sizeof(name)); | |
272 | } else { | |
31c1f537 | 273 | util_strlcpy(name, optarg, sizeof(name)); |
bf7ad0ea | 274 | } |
ecc9ec57 | 275 | util_remove_trailing_chars(name, '/'); |
bf7ad0ea KS |
276 | if (stat(name, &statbuf) < 0) { |
277 | fprintf(stderr, "device node not found\n"); | |
278 | rc = 2; | |
279 | goto exit; | |
280 | } else { | |
281 | char type; | |
282 | ||
283 | if (S_ISBLK(statbuf.st_mode)) { | |
284 | type = 'b'; | |
285 | } else if (S_ISCHR(statbuf.st_mode)) { | |
286 | type = 'c'; | |
287 | } else { | |
288 | fprintf(stderr, "device node has wrong file type\n"); | |
289 | rc = 2; | |
290 | goto exit; | |
291 | } | |
292 | device = udev_device_new_from_devnum(udev, type, statbuf.st_rdev); | |
293 | if (device == NULL) { | |
294 | fprintf(stderr, "device node not found\n"); | |
295 | rc = 2; | |
296 | goto exit; | |
297 | } | |
298 | } | |
87171e46 | 299 | break; |
87171e46 | 300 | case 'p': |
93b0f384 KS |
301 | if (device != NULL) { |
302 | fprintf(stderr, "device already specified\n"); | |
303 | rc = 2; | |
304 | goto exit; | |
305 | } | |
bc8184ed | 306 | /* add sys dir if needed */ |
8753fadf KS |
307 | if (strncmp(optarg, udev_get_sys_path(udev), strlen(udev_get_sys_path(udev))) != 0) { |
308 | util_strlcpy(path, udev_get_sys_path(udev), sizeof(path)); | |
309 | util_strlcat(path, optarg, sizeof(path)); | |
310 | } else { | |
31c1f537 | 311 | util_strlcpy(path, optarg, sizeof(path)); |
8753fadf | 312 | } |
ecc9ec57 | 313 | util_remove_trailing_chars(path, '/'); |
8753fadf | 314 | device = udev_device_new_from_syspath(udev, path); |
bf7ad0ea KS |
315 | if (device == NULL) { |
316 | fprintf(stderr, "device path not found\n"); | |
317 | rc = 2; | |
318 | goto exit; | |
319 | } | |
87171e46 | 320 | break; |
87171e46 | 321 | case 'q': |
24ca5c33 | 322 | action = ACTION_QUERY; |
87171e46 | 323 | if (strcmp(optarg, "name") == 0) { |
b8476286 | 324 | query = QUERY_NAME; |
87171e46 KS |
325 | break; |
326 | } | |
87171e46 | 327 | if (strcmp(optarg, "symlink") == 0) { |
b8476286 | 328 | query = QUERY_SYMLINK; |
87171e46 KS |
329 | break; |
330 | } | |
87171e46 | 331 | if (strcmp(optarg, "path") == 0) { |
b8476286 KS |
332 | query = QUERY_PATH; |
333 | break; | |
334 | } | |
b8476286 KS |
335 | if (strcmp(optarg, "env") == 0) { |
336 | query = QUERY_ENV; | |
87171e46 KS |
337 | break; |
338 | } | |
8ea84a8a | 339 | if (strcmp(optarg, "all") == 0) { |
b8476286 | 340 | query = QUERY_ALL; |
8ea84a8a KS |
341 | break; |
342 | } | |
61b1b706 | 343 | fprintf(stderr, "unknown query type\n"); |
1aa1e248 | 344 | rc = 2; |
e48fc108 | 345 | goto exit; |
87171e46 | 346 | case 'r': |
24ca5c33 KS |
347 | if (action == ACTION_NONE) |
348 | action = ACTION_ROOT; | |
87171e46 KS |
349 | root = 1; |
350 | break; | |
f338bac8 KS |
351 | case 'd': |
352 | action = ACTION_DEVICE_ID_FILE; | |
31c1f537 | 353 | util_strlcpy(name, optarg, sizeof(name)); |
f338bac8 | 354 | break; |
87171e46 | 355 | case 'a': |
24ca5c33 | 356 | action = ACTION_ATTRIBUTE_WALK; |
87171e46 | 357 | break; |
24ca5c33 | 358 | case 'e': |
bf7ad0ea | 359 | export_devices(udev); |
e48fc108 | 360 | goto exit; |
d1acfc3e KS |
361 | case 'x': |
362 | export = 1; | |
363 | break; | |
364 | case 'P': | |
365 | export_prefix = optarg; | |
366 | break; | |
88caa9da | 367 | case 1: |
01618658 | 368 | printf("%s\n", VERSION); |
88caa9da | 369 | goto exit; |
87171e46 | 370 | case 'V': |
01618658 | 371 | printf("udevinfo, version %s\n", VERSION); |
e48fc108 | 372 | goto exit; |
87171e46 | 373 | case 'h': |
225cb03b | 374 | printf("Usage: udevadm info OPTIONS\n" |
cd42b50d | 375 | " --query=<type> query device information:\n" |
f338bac8 KS |
376 | " name name of device node\n" |
377 | " symlink pointing to node\n" | |
cd42b50d | 378 | " path sys device path\n" |
f338bac8 KS |
379 | " env the device related imported environment\n" |
380 | " all all values\n" | |
cd42b50d KS |
381 | " --path=<syspath> sys device path used for query or attribute walk\n" |
382 | " --name=<name> node or symlink name used for query or attribute walk\n" | |
383 | " --root prepend dev directory to path names\n" | |
384 | " --attribute-walk print all key matches while walking along the chain\n" | |
f338bac8 | 385 | " of parent devices\n" |
cd42b50d | 386 | " --device-id-of-file=<file> print major:minor of device containing this file\n" |
f338bac8 KS |
387 | " --export-db export the content of the udev database\n" |
388 | " --help print this text\n" | |
e3396a2d KS |
389 | "\n"); |
390 | goto exit; | |
87171e46 | 391 | default: |
24ca5c33 | 392 | goto exit; |
87171e46 KS |
393 | } |
394 | } | |
395 | ||
24ca5c33 KS |
396 | switch (action) { |
397 | case ACTION_QUERY: | |
93b0f384 | 398 | if (device == NULL) { |
9a8047fa | 399 | fprintf(stderr, "query needs a valid device specified by --path= or --name=\n"); |
1aa1e248 | 400 | rc = 4; |
24ca5c33 | 401 | goto exit; |
87171e46 KS |
402 | } |
403 | ||
87171e46 | 404 | switch(query) { |
b8476286 | 405 | case QUERY_NAME: |
93b0f384 | 406 | if (root) { |
fb762bb9 | 407 | printf("%s\n", udev_device_get_devnode(device)); |
93b0f384 KS |
408 | } else { |
409 | size_t len; | |
18770246 | 410 | |
93b0f384 | 411 | len = strlen(udev_get_dev_path(udev)); |
fb762bb9 | 412 | printf("%s\n", &udev_device_get_devnode(device)[len+1]); |
18770246 | 413 | } |
24ca5c33 | 414 | break; |
93b0f384 | 415 | case QUERY_SYMLINK: |
0de33a61 KS |
416 | list_entry = udev_device_get_devlinks_list_entry(device); |
417 | while (list_entry != NULL) { | |
bf7ad0ea | 418 | if (root) { |
0de33a61 | 419 | printf("%s", udev_list_entry_get_name(list_entry)); |
bf7ad0ea KS |
420 | } else { |
421 | size_t len; | |
422 | ||
423 | len = strlen(udev_get_dev_path(udev_device_get_udev(device))); | |
0de33a61 | 424 | printf("%s", &udev_list_entry_get_name(list_entry)[len+1]); |
bf7ad0ea | 425 | } |
0de33a61 KS |
426 | list_entry = udev_list_entry_get_next(list_entry); |
427 | if (list_entry != NULL) | |
bf7ad0ea KS |
428 | printf(" "); |
429 | } | |
430 | printf("\n"); | |
93b0f384 | 431 | break; |
b8476286 | 432 | case QUERY_PATH: |
93b0f384 | 433 | printf("%s\n", udev_device_get_devpath(device)); |
e48fc108 | 434 | goto exit; |
b8476286 | 435 | case QUERY_ENV: |
0de33a61 KS |
436 | list_entry = udev_device_get_properties_list_entry(device); |
437 | while (list_entry != NULL) { | |
438 | printf("%s=%s\n", udev_list_entry_get_name(list_entry), udev_list_entry_get_value(list_entry)); | |
439 | list_entry = udev_list_entry_get_next(list_entry); | |
bf7ad0ea | 440 | } |
24ca5c33 | 441 | break; |
b8476286 | 442 | case QUERY_ALL: |
93b0f384 | 443 | print_record(device); |
24ca5c33 | 444 | break; |
87171e46 | 445 | default: |
e3396a2d | 446 | fprintf(stderr, "unknown query type\n"); |
24ca5c33 | 447 | break; |
87171e46 | 448 | } |
24ca5c33 KS |
449 | break; |
450 | case ACTION_ATTRIBUTE_WALK: | |
93b0f384 | 451 | if (device == NULL) { |
9a8047fa | 452 | fprintf(stderr, "query needs a valid device specified by --path= or --name=\n"); |
1aa0c52b KS |
453 | rc = 5; |
454 | goto exit; | |
455 | } | |
93b0f384 | 456 | print_device_chain(device); |
24ca5c33 | 457 | break; |
f338bac8 | 458 | case ACTION_DEVICE_ID_FILE: |
d1acfc3e | 459 | if (stat_device(name, export, export_prefix) != 0) |
f338bac8 KS |
460 | rc = 6; |
461 | break; | |
24ca5c33 | 462 | case ACTION_ROOT: |
7d563a17 | 463 | printf("%s\n", udev_get_dev_path(udev)); |
24ca5c33 KS |
464 | break; |
465 | default: | |
e3396a2d | 466 | fprintf(stderr, "missing option\n"); |
1aa1e248 | 467 | rc = 1; |
24ca5c33 | 468 | break; |
87171e46 KS |
469 | } |
470 | ||
e48fc108 | 471 | exit: |
93b0f384 | 472 | udev_device_unref(device); |
1aa1e248 | 473 | return rc; |
87171e46 | 474 | } |