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Commit | Line | Data |
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f13467ec | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
be9b51f6 | 2 | |
034f35d7 | 3 | #include <ctype.h> |
87171e46 | 4 | #include <errno.h> |
e6c1a2bd | 5 | #include <fcntl.h> |
07630cea LP |
6 | #include <getopt.h> |
7 | #include <stddef.h> | |
8 | #include <stdio.h> | |
492e76c9 | 9 | #include <sys/stat.h> |
07630cea | 10 | #include <unistd.h> |
be9b51f6 | 11 | |
13aca847 YW |
12 | #include "sd-device.h" |
13 | ||
c4abe719 | 14 | #include "alloc-util.h" |
13aca847 YW |
15 | #include "device-enumerator-private.h" |
16 | #include "device-private.h" | |
17 | #include "device-util.h" | |
d6e5f170 | 18 | #include "devnum-util.h" |
8fb3f009 | 19 | #include "dirent-util.h" |
a24e3938 | 20 | #include "errno-util.h" |
3ffd4af2 | 21 | #include "fd-util.h" |
7b6d1683 | 22 | #include "fileio.h" |
9117d94b | 23 | #include "glyph-util.h" |
d6e5f170 | 24 | #include "json.h" |
9117d94b | 25 | #include "pager.h" |
d6e5f170 | 26 | #include "parse-argument.h" |
21df1465 | 27 | #include "sort-util.h" |
6c1482b2 | 28 | #include "static-destruct.h" |
0f4b93c4 | 29 | #include "string-table.h" |
07630cea | 30 | #include "string-util.h" |
13005c8f | 31 | #include "terminal-util.h" |
ae760f4b | 32 | #include "udev-util.h" |
0f4b93c4 | 33 | #include "udevadm.h" |
13005c8f | 34 | #include "udevadm-util.h" |
be9b51f6 | 35 | |
668e7c0c ZJS |
36 | typedef enum ActionType { |
37 | ACTION_QUERY, | |
38 | ACTION_ATTRIBUTE_WALK, | |
39 | ACTION_DEVICE_ID_FILE, | |
9117d94b | 40 | ACTION_TREE, |
d6e5f170 | 41 | ACTION_EXPORT, |
668e7c0c ZJS |
42 | } ActionType; |
43 | ||
44 | typedef enum QueryType { | |
45 | QUERY_NAME, | |
46 | QUERY_PATH, | |
47 | QUERY_SYMLINK, | |
48 | QUERY_PROPERTY, | |
49 | QUERY_ALL, | |
50 | } QueryType; | |
51 | ||
6c1482b2 | 52 | static char **arg_properties = NULL; |
668e7c0c ZJS |
53 | static bool arg_root = false; |
54 | static bool arg_export = false; | |
6c1482b2 | 55 | static bool arg_value = false; |
668e7c0c | 56 | static const char *arg_export_prefix = NULL; |
ae760f4b | 57 | static usec_t arg_wait_for_initialization_timeout = 0; |
b6ec23a0 | 58 | PagerFlags arg_pager_flags = 0; |
d6e5f170 | 59 | static JsonFormatFlags arg_json_format_flags = JSON_FORMAT_OFF; |
668e7c0c | 60 | |
9117d94b LP |
61 | /* Put a limit on --tree descent level to not exhaust our stack */ |
62 | #define TREE_DEPTH_MAX 64 | |
63 | ||
9ec6e95b | 64 | static bool skip_attribute(const char *name) { |
4881a0d2 YW |
65 | assert(name); |
66 | ||
5992f362 ZJS |
67 | /* Those are either displayed separately or should not be shown at all. */ |
68 | return STR_IN_SET(name, | |
69 | "uevent", | |
70 | "dev", | |
71 | "modalias", | |
72 | "resource", | |
73 | "driver", | |
74 | "subsystem", | |
75 | "module"); | |
20bee04c KS |
76 | } |
77 | ||
21df1465 YW |
78 | typedef struct SysAttr { |
79 | const char *name; | |
80 | const char *value; | |
81 | } SysAttr; | |
82 | ||
6c1482b2 FS |
83 | STATIC_DESTRUCTOR_REGISTER(arg_properties, strv_freep); |
84 | ||
21df1465 | 85 | static int sysattr_compare(const SysAttr *a, const SysAttr *b) { |
4881a0d2 YW |
86 | assert(a); |
87 | assert(b); | |
88 | ||
21df1465 YW |
89 | return strcmp(a->name, b->name); |
90 | } | |
91 | ||
92 | static int print_all_attributes(sd_device *device, bool is_parent) { | |
93 | _cleanup_free_ SysAttr *sysattrs = NULL; | |
a1af8372 | 94 | const char *value; |
319a4f4b | 95 | size_t n_items = 0; |
3a90bef5 | 96 | int r; |
912541b0 | 97 | |
4881a0d2 YW |
98 | assert(device); |
99 | ||
21df1465 YW |
100 | value = NULL; |
101 | (void) sd_device_get_devpath(device, &value); | |
102 | printf(" looking at %sdevice '%s':\n", is_parent ? "parent " : "", strempty(value)); | |
103 | ||
104 | value = NULL; | |
105 | (void) sd_device_get_sysname(device, &value); | |
106 | printf(" %s==\"%s\"\n", is_parent ? "KERNELS" : "KERNEL", strempty(value)); | |
107 | ||
108 | value = NULL; | |
109 | (void) sd_device_get_subsystem(device, &value); | |
110 | printf(" %s==\"%s\"\n", is_parent ? "SUBSYSTEMS" : "SUBSYSTEM", strempty(value)); | |
111 | ||
112 | value = NULL; | |
113 | (void) sd_device_get_driver(device, &value); | |
114 | printf(" %s==\"%s\"\n", is_parent ? "DRIVERS" : "DRIVER", strempty(value)); | |
115 | ||
6d6308f6 | 116 | FOREACH_DEVICE_SYSATTR(device, name) { |
912541b0 KS |
117 | size_t len; |
118 | ||
912541b0 KS |
119 | if (skip_attribute(name)) |
120 | continue; | |
121 | ||
3a90bef5 YW |
122 | r = sd_device_get_sysattr_value(device, name, &value); |
123 | if (r >= 0) { | |
124 | /* skip any values that look like a path */ | |
125 | if (value[0] == '/') | |
126 | continue; | |
127 | ||
128 | /* skip nonprintable attributes */ | |
129 | len = strlen(value); | |
130 | while (len > 0 && isprint((unsigned char) value[len-1])) | |
131 | len--; | |
132 | if (len > 0) | |
133 | continue; | |
134 | ||
a24e3938 LP |
135 | } else if (ERRNO_IS_PRIVILEGE(r)) |
136 | value = "(not readable)"; | |
3a90bef5 | 137 | else |
912541b0 | 138 | continue; |
912541b0 | 139 | |
319a4f4b | 140 | if (!GREEDY_REALLOC(sysattrs, n_items + 1)) |
21df1465 YW |
141 | return log_oom(); |
142 | ||
143 | sysattrs[n_items] = (SysAttr) { | |
144 | .name = name, | |
145 | .value = value, | |
146 | }; | |
147 | n_items++; | |
912541b0 | 148 | } |
21df1465 YW |
149 | |
150 | typesafe_qsort(sysattrs, n_items, sysattr_compare); | |
151 | ||
152 | for (size_t i = 0; i < n_items; i++) | |
153 | printf(" %s{%s}==\"%s\"\n", is_parent ? "ATTRS" : "ATTR", sysattrs[i].name, sysattrs[i].value); | |
154 | ||
d539f791 | 155 | puts(""); |
21df1465 YW |
156 | |
157 | return 0; | |
be9b51f6 KS |
158 | } |
159 | ||
13aca847 YW |
160 | static int print_device_chain(sd_device *device) { |
161 | sd_device *child, *parent; | |
21df1465 | 162 | int r; |
912541b0 | 163 | |
4881a0d2 YW |
164 | assert(device); |
165 | ||
912541b0 KS |
166 | printf("\n" |
167 | "Udevadm info starts with the device specified by the devpath and then\n" | |
168 | "walks up the chain of parent devices. It prints for every device\n" | |
169 | "found, all possible attributes in the udev rules key format.\n" | |
170 | "A rule to match, can be composed by the attributes of the device\n" | |
171 | "and the attributes from one single parent device.\n" | |
172 | "\n"); | |
173 | ||
21df1465 YW |
174 | r = print_all_attributes(device, false); |
175 | if (r < 0) | |
176 | return r; | |
912541b0 | 177 | |
13aca847 | 178 | for (child = device; sd_device_get_parent(child, &parent) >= 0; child = parent) { |
21df1465 YW |
179 | r = print_all_attributes(parent, true); |
180 | if (r < 0) | |
181 | return r; | |
13aca847 | 182 | } |
912541b0 KS |
183 | |
184 | return 0; | |
1aa1e248 KS |
185 | } |
186 | ||
9117d94b | 187 | static int print_record(sd_device *device, const char *prefix) { |
a1af8372 | 188 | const char *str, *subsys; |
a0e90259 LP |
189 | dev_t devnum; |
190 | uint64_t q; | |
191 | int i, ifi; | |
912541b0 | 192 | |
4881a0d2 YW |
193 | assert(device); |
194 | ||
9117d94b LP |
195 | prefix = strempty(prefix); |
196 | ||
a0e90259 LP |
197 | /* We don't show syspath here, because it's identical to devpath (modulo the "/sys" prefix). |
198 | * | |
199 | * We don't show action/seqnum here because that only makes sense for records synthesized from | |
200 | * uevents, not for those synthesized from database entries. | |
201 | * | |
202 | * We don't show sysattrs here, because they can be expensive and potentially issue expensive driver | |
13005c8f LP |
203 | * IO. |
204 | * | |
205 | * Coloring: let's be conservative with coloring. Let's use it to group related fields. Right now: | |
206 | * | |
207 | * • white for fields that give the device a name | |
208 | * • green for fields that categorize the device into subsystem/devtype and similar | |
209 | * • cyan for fields about associated device nodes/symlinks/network interfaces and such | |
210 | * • magenta for block device diskseq | |
211 | * • yellow for driver info | |
212 | * • no color for regular properties */ | |
a0e90259 LP |
213 | |
214 | assert_se(sd_device_get_devpath(device, &str) >= 0); | |
9117d94b | 215 | printf("%sP: %s%s%s\n", prefix, ansi_highlight_white(), str, ansi_normal()); |
912541b0 | 216 | |
a0e90259 | 217 | if (sd_device_get_sysname(device, &str) >= 0) |
9117d94b | 218 | printf("%sM: %s%s%s\n", prefix, ansi_highlight_white(), str, ansi_normal()); |
a0e90259 LP |
219 | |
220 | if (sd_device_get_sysnum(device, &str) >= 0) | |
9117d94b | 221 | printf("%sR: %s%s%s\n", prefix, ansi_highlight_white(), str, ansi_normal()); |
a0e90259 LP |
222 | |
223 | if (sd_device_get_subsystem(device, &subsys) >= 0) | |
9117d94b | 224 | printf("%sU: %s%s%s\n", prefix, ansi_highlight_green(), subsys, ansi_normal()); |
a0e90259 LP |
225 | |
226 | if (sd_device_get_devtype(device, &str) >= 0) | |
9117d94b | 227 | printf("%sT: %s%s%s\n", prefix, ansi_highlight_green(), str, ansi_normal()); |
a0e90259 LP |
228 | |
229 | if (sd_device_get_devnum(device, &devnum) >= 0) | |
9117d94b LP |
230 | printf("%sD: %s%c %u:%u%s\n", |
231 | prefix, | |
13005c8f LP |
232 | ansi_highlight_cyan(), |
233 | streq_ptr(subsys, "block") ? 'b' : 'c', major(devnum), minor(devnum), | |
234 | ansi_normal()); | |
a0e90259 LP |
235 | |
236 | if (sd_device_get_ifindex(device, &ifi) >= 0) | |
9117d94b | 237 | printf("%sI: %s%i%s\n", prefix, ansi_highlight_cyan(), ifi, ansi_normal()); |
a0e90259 | 238 | |
d539f791 | 239 | if (sd_device_get_devname(device, &str) >= 0) { |
a1af8372 DDM |
240 | const char *val; |
241 | ||
d539f791 | 242 | assert_se(val = path_startswith(str, "/dev/")); |
9117d94b | 243 | printf("%sN: %s%s%s\n", prefix, ansi_highlight_cyan(), val, ansi_normal()); |
912541b0 | 244 | |
a0e90259 | 245 | if (device_get_devlink_priority(device, &i) >= 0) |
9117d94b | 246 | printf("%sL: %s%i%s\n", prefix, ansi_highlight_cyan(), i, ansi_normal()); |
912541b0 | 247 | |
a1af8372 DDM |
248 | FOREACH_DEVICE_DEVLINK(device, link) { |
249 | assert_se(val = path_startswith(link, "/dev/")); | |
9117d94b | 250 | printf("%sS: %s%s%s\n", prefix, ansi_highlight_cyan(), val, ansi_normal()); |
a0e90259 | 251 | } |
d539f791 | 252 | } |
13aca847 | 253 | |
a0e90259 | 254 | if (sd_device_get_diskseq(device, &q) >= 0) |
9117d94b | 255 | printf("%sQ: %s%" PRIu64 "%s\n", prefix, ansi_highlight_magenta(), q, ansi_normal()); |
a0e90259 LP |
256 | |
257 | if (sd_device_get_driver(device, &str) >= 0) | |
9117d94b | 258 | printf("%sV: %s%s%s\n", prefix, ansi_highlight_yellow4(), str, ansi_normal()); |
a0e90259 | 259 | |
a1af8372 DDM |
260 | FOREACH_DEVICE_PROPERTY(device, key, val) |
261 | printf("%sE: %s=%s\n", prefix, key, val); | |
912541b0 | 262 | |
9117d94b LP |
263 | if (isempty(prefix)) |
264 | puts(""); | |
668e7c0c | 265 | return 0; |
31de3a2b KS |
266 | } |
267 | ||
d6e5f170 DDM |
268 | static int record_to_json(sd_device *device, JsonVariant **ret) { |
269 | _cleanup_(json_variant_unrefp) JsonVariant *v = NULL; | |
270 | const char *str; | |
271 | int r; | |
272 | ||
273 | assert(device); | |
274 | assert(ret); | |
275 | ||
276 | /* We don't show any shorthand fields here as done in print_record() except for SYSNAME and SYSNUM as | |
277 | * all the other ones have a matching property which will already be included. */ | |
278 | ||
279 | if (sd_device_get_sysname(device, &str) >= 0) { | |
280 | r = json_variant_set_field_string(&v, "SYSNAME", str); | |
281 | if (r < 0) | |
282 | return r; | |
283 | } | |
284 | ||
285 | if (sd_device_get_sysnum(device, &str) >= 0) { | |
286 | r = json_variant_set_field_string(&v, "SYSNUM", str); | |
287 | if (r < 0) | |
288 | return r; | |
289 | } | |
290 | ||
291 | FOREACH_DEVICE_PROPERTY(device, key, val) { | |
292 | r = json_variant_set_field_string(&v, key, val); | |
293 | if (r < 0) | |
294 | return r; | |
295 | } | |
296 | ||
297 | *ret = TAKE_PTR(v); | |
298 | return 0; | |
299 | } | |
300 | ||
9ec6e95b | 301 | static int stat_device(const char *name, bool export, const char *prefix) { |
912541b0 KS |
302 | struct stat statbuf; |
303 | ||
4881a0d2 YW |
304 | assert(name); |
305 | ||
912541b0 | 306 | if (stat(name, &statbuf) != 0) |
755700bb | 307 | return -errno; |
912541b0 KS |
308 | |
309 | if (export) { | |
13aca847 | 310 | if (!prefix) |
912541b0 | 311 | prefix = "INFO_"; |
1fa2f38f ZJS |
312 | printf("%sMAJOR=%u\n" |
313 | "%sMINOR=%u\n", | |
912541b0 KS |
314 | prefix, major(statbuf.st_dev), |
315 | prefix, minor(statbuf.st_dev)); | |
316 | } else | |
1fa2f38f | 317 | printf("%u:%u\n", major(statbuf.st_dev), minor(statbuf.st_dev)); |
912541b0 | 318 | return 0; |
f338bac8 KS |
319 | } |
320 | ||
a6b4b2fa | 321 | static int export_devices(sd_device_enumerator *e) { |
13aca847 YW |
322 | sd_device *d; |
323 | int r; | |
912541b0 | 324 | |
a6b4b2fa | 325 | assert(e); |
912541b0 | 326 | |
13aca847 YW |
327 | r = device_enumerator_scan_devices(e); |
328 | if (r < 0) | |
df5a4889 | 329 | return log_error_errno(r, "Failed to scan devices: %m"); |
13aca847 | 330 | |
cbef829f ZJS |
331 | pager_open(arg_pager_flags); |
332 | ||
13aca847 | 333 | FOREACH_DEVICE_AND_SUBSYSTEM(e, d) |
d6e5f170 DDM |
334 | if (arg_json_format_flags & JSON_FORMAT_OFF) |
335 | (void) print_record(d, NULL); | |
336 | else { | |
337 | _cleanup_(json_variant_unrefp) JsonVariant *v = NULL; | |
338 | ||
339 | r = record_to_json(d, &v); | |
340 | if (r < 0) | |
341 | return r; | |
342 | ||
343 | (void) json_variant_dump(v, arg_json_format_flags, stdout, NULL); | |
344 | } | |
755700bb | 345 | |
912541b0 | 346 | return 0; |
bf7ad0ea KS |
347 | } |
348 | ||
9ec6e95b | 349 | static void cleanup_dir(DIR *dir, mode_t mask, int depth) { |
4881a0d2 YW |
350 | assert(dir); |
351 | ||
912541b0 KS |
352 | if (depth <= 0) |
353 | return; | |
354 | ||
8fb3f009 | 355 | FOREACH_DIRENT_ALL(dent, dir, break) { |
912541b0 KS |
356 | struct stat stats; |
357 | ||
28d6e854 | 358 | if (dot_or_dot_dot(dent->d_name)) |
912541b0 | 359 | continue; |
28d6e854 | 360 | if (fstatat(dirfd(dir), dent->d_name, &stats, AT_SYMLINK_NOFOLLOW) < 0) |
912541b0 KS |
361 | continue; |
362 | if ((stats.st_mode & mask) != 0) | |
363 | continue; | |
364 | if (S_ISDIR(stats.st_mode)) { | |
7b6d1683 | 365 | _cleanup_closedir_ DIR *subdir = NULL; |
912541b0 | 366 | |
7b6d1683 LP |
367 | subdir = xopendirat(dirfd(dir), dent->d_name, O_NOFOLLOW); |
368 | if (!subdir) | |
369 | log_debug_errno(errno, "Failed to open subdirectory '%s', ignoring: %m", dent->d_name); | |
370 | else | |
371 | cleanup_dir(subdir, mask, depth-1); | |
200c7fa6 LP |
372 | |
373 | (void) unlinkat(dirfd(dir), dent->d_name, AT_REMOVEDIR); | |
374 | } else | |
375 | (void) unlinkat(dirfd(dir), dent->d_name, 0); | |
912541b0 | 376 | } |
9ead6627 KS |
377 | } |
378 | ||
7ec62414 MW |
379 | /* |
380 | * Assume that dir is a directory with file names matching udev data base | |
381 | * entries for devices in /run/udev/data (such as "b8:16"), and removes | |
382 | * all files except those that haven't been deleted in /run/udev/data | |
383 | * (i.e. they were skipped during db cleanup because of the db_persist flag). | |
7ec62414 | 384 | */ |
636ab001 | 385 | static void cleanup_dir_after_db_cleanup(DIR *dir, DIR *datadir) { |
9e0bd1d6 YW |
386 | assert(dir); |
387 | assert(datadir); | |
7ec62414 MW |
388 | |
389 | FOREACH_DIRENT_ALL(dent, dir, break) { | |
7ec62414 MW |
390 | if (dot_or_dot_dot(dent->d_name)) |
391 | continue; | |
636ab001 YW |
392 | |
393 | if (faccessat(dirfd(datadir), dent->d_name, F_OK, AT_SYMLINK_NOFOLLOW) >= 0) | |
394 | /* The corresponding udev database file still exists. | |
2b4cdac9 | 395 | * Assuming the persistent flag is set for the database. */ |
7ec62414 | 396 | continue; |
7ec62414 | 397 | |
636ab001 | 398 | (void) unlinkat(dirfd(dir), dent->d_name, 0); |
7ec62414 | 399 | } |
7ec62414 MW |
400 | } |
401 | ||
402 | static void cleanup_dirs_after_db_cleanup(DIR *dir, DIR *datadir) { | |
9e0bd1d6 YW |
403 | assert(dir); |
404 | assert(datadir); | |
7ec62414 MW |
405 | |
406 | FOREACH_DIRENT_ALL(dent, dir, break) { | |
407 | struct stat stats; | |
408 | ||
409 | if (dot_or_dot_dot(dent->d_name)) | |
410 | continue; | |
411 | if (fstatat(dirfd(dir), dent->d_name, &stats, AT_SYMLINK_NOFOLLOW) < 0) | |
412 | continue; | |
413 | if (S_ISDIR(stats.st_mode)) { | |
7b6d1683 | 414 | _cleanup_closedir_ DIR *subdir = NULL; |
7ec62414 | 415 | |
7b6d1683 LP |
416 | subdir = xopendirat(dirfd(dir), dent->d_name, O_NOFOLLOW); |
417 | if (!subdir) | |
418 | log_debug_errno(errno, "Failed to open subdirectory '%s', ignoring: %m", dent->d_name); | |
419 | else | |
420 | cleanup_dir_after_db_cleanup(subdir, datadir); | |
636ab001 YW |
421 | |
422 | (void) unlinkat(dirfd(dir), dent->d_name, AT_REMOVEDIR); | |
7ec62414 MW |
423 | } else |
424 | (void) unlinkat(dirfd(dir), dent->d_name, 0); | |
425 | } | |
426 | } | |
427 | ||
2024ed61 | 428 | static void cleanup_db(void) { |
bd979801 | 429 | _cleanup_closedir_ DIR *dir1 = NULL, *dir2 = NULL, *dir3 = NULL, *dir4 = NULL; |
912541b0 | 430 | |
755700bb | 431 | dir1 = opendir("/run/udev/data"); |
13aca847 | 432 | if (dir1) |
755700bb | 433 | cleanup_dir(dir1, S_ISVTX, 1); |
912541b0 | 434 | |
755700bb | 435 | dir2 = opendir("/run/udev/links"); |
13aca847 | 436 | if (dir2) |
7ec62414 | 437 | cleanup_dirs_after_db_cleanup(dir2, dir1); |
912541b0 | 438 | |
755700bb | 439 | dir3 = opendir("/run/udev/tags"); |
13aca847 | 440 | if (dir3) |
7ec62414 | 441 | cleanup_dirs_after_db_cleanup(dir3, dir1); |
912541b0 | 442 | |
755700bb | 443 | dir4 = opendir("/run/udev/static_node-tags"); |
13aca847 | 444 | if (dir4) |
755700bb | 445 | cleanup_dir(dir4, 0, 2); |
84b6ad70 | 446 | |
bd979801 YW |
447 | /* Do not remove /run/udev/watch. It will be handled by udevd well on restart. |
448 | * And should not be removed by external program when udevd is running. */ | |
9ead6627 KS |
449 | } |
450 | ||
668e7c0c ZJS |
451 | static int query_device(QueryType query, sd_device* device) { |
452 | int r; | |
453 | ||
454 | assert(device); | |
455 | ||
79893116 | 456 | switch (query) { |
668e7c0c ZJS |
457 | case QUERY_NAME: { |
458 | const char *node; | |
459 | ||
460 | r = sd_device_get_devname(device, &node); | |
461 | if (r < 0) | |
462 | return log_error_errno(r, "No device node found: %m"); | |
463 | ||
d539f791 ZJS |
464 | if (!arg_root) |
465 | assert_se(node = path_startswith(node, "/dev/")); | |
466 | printf("%s\n", node); | |
668e7c0c ZJS |
467 | return 0; |
468 | } | |
469 | ||
470 | case QUERY_SYMLINK: { | |
a1af8372 | 471 | const char *prefix = ""; |
668e7c0c ZJS |
472 | |
473 | FOREACH_DEVICE_DEVLINK(device, devlink) { | |
d539f791 ZJS |
474 | if (!arg_root) |
475 | assert_se(devlink = path_startswith(devlink, "/dev/")); | |
476 | printf("%s%s", prefix, devlink); | |
477 | prefix = " "; | |
668e7c0c | 478 | } |
d539f791 | 479 | puts(""); |
668e7c0c ZJS |
480 | return 0; |
481 | } | |
482 | ||
483 | case QUERY_PATH: { | |
484 | const char *devpath; | |
5ac0162c | 485 | |
668e7c0c ZJS |
486 | r = sd_device_get_devpath(device, &devpath); |
487 | if (r < 0) | |
488 | return log_error_errno(r, "Failed to get device path: %m"); | |
489 | ||
490 | printf("%s\n", devpath); | |
491 | return 0; | |
492 | } | |
493 | ||
a1af8372 | 494 | case QUERY_PROPERTY: |
6c1482b2 FS |
495 | FOREACH_DEVICE_PROPERTY(device, key, value) { |
496 | if (arg_properties && !strv_contains(arg_properties, key)) | |
497 | continue; | |
498 | ||
668e7c0c ZJS |
499 | if (arg_export) |
500 | printf("%s%s='%s'\n", strempty(arg_export_prefix), key, value); | |
6c1482b2 FS |
501 | else if (arg_value) |
502 | printf("%s\n", value); | |
668e7c0c ZJS |
503 | else |
504 | printf("%s=%s\n", key, value); | |
6c1482b2 FS |
505 | } |
506 | ||
668e7c0c | 507 | return 0; |
668e7c0c ZJS |
508 | |
509 | case QUERY_ALL: | |
d6e5f170 DDM |
510 | if (arg_json_format_flags & JSON_FORMAT_OFF) |
511 | return print_record(device, NULL); | |
512 | else { | |
513 | _cleanup_(json_variant_unrefp) JsonVariant *v = NULL; | |
514 | ||
515 | r = record_to_json(device, &v); | |
516 | if (r < 0) | |
517 | return r; | |
518 | ||
519 | (void) json_variant_dump(v, arg_json_format_flags, stdout, NULL); | |
520 | } | |
521 | ||
522 | return 0; | |
668e7c0c | 523 | |
4881a0d2 YW |
524 | default: |
525 | assert_not_reached(); | |
526 | } | |
668e7c0c ZJS |
527 | } |
528 | ||
529 | static int help(void) { | |
5ac0162c LP |
530 | printf("%s info [OPTIONS] [DEVPATH|FILE]\n\n" |
531 | "Query sysfs or the udev database.\n\n" | |
532 | " -h --help Print this message\n" | |
73527992 | 533 | " -V --version Print version of the program\n" |
5ac0162c LP |
534 | " -q --query=TYPE Query device information:\n" |
535 | " name Name of device node\n" | |
536 | " symlink Pointing to node\n" | |
537 | " path sysfs device path\n" | |
538 | " property The device properties\n" | |
539 | " all All values\n" | |
6c1482b2 FS |
540 | " --property=NAME Show only properties by this name\n" |
541 | " --value When showing properties, print only their values\n" | |
5ac0162c LP |
542 | " -p --path=SYSPATH sysfs device path used for query or attribute walk\n" |
543 | " -n --name=NAME Node or symlink name used for query or attribute walk\n" | |
544 | " -r --root Prepend dev directory to path names\n" | |
545 | " -a --attribute-walk Print all key matches walking along the chain\n" | |
546 | " of parent devices\n" | |
9117d94b | 547 | " -t --tree Show tree of devices\n" |
5ac0162c LP |
548 | " -d --device-id-of-file=FILE Print major:minor of device containing this file\n" |
549 | " -x --export Export key/value pairs\n" | |
550 | " -P --export-prefix Export the key name with a prefix\n" | |
551 | " -e --export-db Export the content of the udev database\n" | |
552 | " -c --cleanup-db Clean up the udev database\n" | |
ae760f4b | 553 | " -w --wait-for-initialization[=SECONDS]\n" |
b6ec23a0 | 554 | " Wait for device to be initialized\n" |
d6e5f170 | 555 | " --no-pager Do not pipe output into a pager\n" |
a6b4b2fa DDM |
556 | " --json=pretty|short|off Generate JSON output\n" |
557 | " --subsystem-match=SUBSYSTEM\n" | |
558 | " Query devices matching a subsystem\n" | |
559 | " --subsystem-nomatch=SUBSYSTEM\n" | |
560 | " Query devices not matching a subsystem\n" | |
561 | " --attr-match=FILE[=VALUE]\n" | |
562 | " Query devices that match an attribute\n" | |
563 | " --attr-nomatch=FILE[=VALUE]\n" | |
564 | " Query devices that do not match an attribute\n" | |
565 | " --property-match=KEY=VALUE\n" | |
566 | " Query devices with matching properties\n" | |
567 | " --tag-match=TAG Query devices with a matching tag\n" | |
568 | " --sysname-match=NAME Query devices with this /sys path\n" | |
569 | " --name-match=NAME Query devices with this /dev name\n" | |
570 | " --parent-match=NAME Query devices with this parent device\n" | |
571 | " --initialized-match Query devices that are already initialized\n" | |
572 | " --initialized-nomatch Query devices that are not initialized yet\n", | |
bc556335 | 573 | program_invocation_short_name); |
ee4a776d YW |
574 | |
575 | return 0; | |
5ac0162c LP |
576 | } |
577 | ||
9117d94b LP |
578 | static int draw_tree( |
579 | sd_device *parent, | |
580 | sd_device *const array[], size_t n, | |
581 | const char *prefix, | |
582 | unsigned level); | |
583 | ||
584 | static int output_tree_device( | |
585 | sd_device *device, | |
586 | const char *str, | |
587 | const char *prefix, | |
588 | bool more, | |
589 | sd_device *const array[], size_t n, | |
590 | unsigned level) { | |
591 | ||
592 | _cleanup_free_ char *subprefix = NULL, *subsubprefix = NULL; | |
593 | ||
594 | assert(device); | |
595 | assert(str); | |
596 | ||
597 | prefix = strempty(prefix); | |
598 | ||
599 | printf("%s%s%s\n", prefix, special_glyph(more ? SPECIAL_GLYPH_TREE_BRANCH : SPECIAL_GLYPH_TREE_RIGHT), str); | |
600 | ||
601 | subprefix = strjoin(prefix, special_glyph(more ? SPECIAL_GLYPH_TREE_VERTICAL : SPECIAL_GLYPH_TREE_SPACE)); | |
602 | if (!subprefix) | |
603 | return log_oom(); | |
604 | ||
605 | subsubprefix = strjoin(subprefix, special_glyph(SPECIAL_GLYPH_VERTICAL_DOTTED), " "); | |
606 | if (!subsubprefix) | |
607 | return log_oom(); | |
608 | ||
609 | (void) print_record(device, subsubprefix); | |
610 | ||
611 | return draw_tree(device, array, n, subprefix, level + 1); | |
612 | } | |
613 | ||
614 | static int draw_tree( | |
615 | sd_device *parent, | |
616 | sd_device *const array[], size_t n, | |
617 | const char *prefix, | |
618 | unsigned level) { | |
619 | ||
620 | const char *parent_path; | |
621 | size_t i = 0; | |
622 | int r; | |
623 | ||
624 | if (n == 0) | |
625 | return 0; | |
626 | ||
627 | assert(array); | |
628 | ||
629 | if (parent) { | |
630 | r = sd_device_get_devpath(parent, &parent_path); | |
631 | if (r < 0) | |
632 | return log_error_errno(r, "Failed to get sysfs path of parent device: %m"); | |
633 | } else | |
634 | parent_path = NULL; | |
635 | ||
636 | if (level > TREE_DEPTH_MAX) { | |
637 | log_warning("Eliding tree below '%s', too deep.", strna(parent_path)); | |
638 | return 0; | |
639 | } | |
640 | ||
641 | while (i < n) { | |
642 | sd_device *device = array[i]; | |
643 | const char *device_path, *str; | |
644 | bool more = false; | |
645 | size_t j; | |
646 | ||
647 | r = sd_device_get_devpath(device, &device_path); | |
648 | if (r < 0) | |
649 | return log_error_errno(r, "Failed to get sysfs path of enumerated device: %m"); | |
650 | ||
651 | /* Scan through the subsequent devices looking children of the device we are looking at. */ | |
652 | for (j = i + 1; j < n; j++) { | |
653 | sd_device *next = array[j]; | |
654 | const char *next_path; | |
655 | ||
656 | r = sd_device_get_devpath(next, &next_path); | |
657 | if (r < 0) | |
658 | return log_error_errno(r, "Failed to get sysfs of child device: %m"); | |
659 | ||
660 | if (!path_startswith(next_path, device_path)) { | |
661 | more = !parent_path || path_startswith(next_path, parent_path); | |
662 | break; | |
663 | } | |
664 | } | |
665 | ||
666 | /* Determine the string to display for this node. If we are at the top of the tree, the full | |
667 | * device path so far, otherwise just the part suffixing the parent's device path. */ | |
668 | str = parent ? ASSERT_PTR(path_startswith(device_path, parent_path)) : device_path; | |
669 | ||
670 | r = output_tree_device(device, str, prefix, more, array + i + 1, j - i - 1, level); | |
671 | if (r < 0) | |
672 | return r; | |
673 | ||
674 | i = j; | |
675 | } | |
676 | ||
677 | return 0; | |
678 | } | |
679 | ||
680 | static int print_tree(sd_device* below) { | |
681 | _cleanup_(sd_device_enumerator_unrefp) sd_device_enumerator *e = NULL; | |
682 | const char *below_path; | |
683 | sd_device **array; | |
684 | size_t n = 0; | |
685 | int r; | |
686 | ||
687 | if (below) { | |
688 | r = sd_device_get_devpath(below, &below_path); | |
689 | if (r < 0) | |
690 | return log_error_errno(r, "Failed to get sysfs path of device: %m"); | |
691 | ||
692 | } else | |
693 | below_path = NULL; | |
694 | ||
695 | r = sd_device_enumerator_new(&e); | |
696 | if (r < 0) | |
697 | return log_error_errno(r, "Failed to allocate device enumerator: %m"); | |
698 | ||
699 | if (below) { | |
700 | r = sd_device_enumerator_add_match_parent(e, below); | |
701 | if (r < 0) | |
702 | return log_error_errno(r, "Failed to install parent enumerator match: %m"); | |
703 | } | |
704 | ||
705 | r = sd_device_enumerator_allow_uninitialized(e); | |
706 | if (r < 0) | |
707 | return log_error_errno(r, "Failed to enable enumeration of uninitialized devices: %m"); | |
708 | ||
709 | r = device_enumerator_scan_devices_and_subsystems(e); | |
710 | if (r < 0) | |
711 | return log_error_errno(r, "Failed to scan for devices and subsystems: %m"); | |
712 | ||
bd4297e7 YW |
713 | if (below) { |
714 | /* This must be called after device_enumerator_scan_devices_and_subsystems(). */ | |
715 | r = device_enumerator_add_parent_devices(e, below); | |
716 | if (r < 0) | |
717 | return log_error_errno(r, "Failed to add parent devices: %m"); | |
718 | } | |
719 | ||
9117d94b LP |
720 | assert_se(array = device_enumerator_get_devices(e, &n)); |
721 | ||
722 | if (n == 0) { | |
723 | log_info("No items."); | |
724 | return 0; | |
725 | } | |
726 | ||
727 | r = draw_tree(NULL, array, n, NULL, 0); | |
728 | if (r < 0) | |
729 | return r; | |
730 | ||
731 | printf("\n%zu items shown.\n", n); | |
732 | return 0; | |
733 | } | |
734 | ||
a6b4b2fa DDM |
735 | static int ensure_device_enumerator(sd_device_enumerator **e) { |
736 | int r; | |
737 | ||
738 | assert(e); | |
739 | ||
740 | if (*e) | |
741 | return 0; | |
742 | ||
743 | r = sd_device_enumerator_new(e); | |
744 | if (r < 0) | |
745 | return log_error_errno(r, "Failed to create device enumerator: %m"); | |
746 | ||
747 | r = sd_device_enumerator_allow_uninitialized(*e); | |
748 | if (r < 0) | |
749 | return log_error_errno(r, "Failed to allow uninitialized devices: %m"); | |
750 | ||
751 | return 0; | |
752 | } | |
753 | ||
754 | static int parse_key_value_argument(const char *s, char **key, char **value) { | |
755 | _cleanup_free_ char *k = NULL, *v = NULL; | |
756 | int r; | |
757 | ||
758 | assert(s); | |
759 | assert(key); | |
760 | assert(value); | |
761 | ||
4f495126 | 762 | r = extract_many_words(&s, "=", EXTRACT_DONT_COALESCE_SEPARATORS, &k, &v); |
a6b4b2fa DDM |
763 | if (r < 0) |
764 | return log_error_errno(r, "Failed to parse key/value pair %s: %m", s); | |
765 | if (r < 2) | |
766 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Missing '=' in key/value pair %s.", s); | |
767 | ||
768 | if (!filename_is_valid(k)) | |
769 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "%s is not a valid key name", k); | |
770 | ||
771 | free_and_replace(*key, k); | |
772 | free_and_replace(*value, v); | |
773 | return 0; | |
774 | } | |
775 | ||
3d05193e | 776 | int info_main(int argc, char *argv[], void *userdata) { |
a6b4b2fa | 777 | _cleanup_(sd_device_enumerator_unrefp) sd_device_enumerator *e = NULL; |
3c79311a | 778 | _cleanup_strv_free_ char **devices = NULL; |
c4abe719 | 779 | _cleanup_free_ char *name = NULL; |
7ba77d8f | 780 | int c, r, ret; |
912541b0 | 781 | |
6c1482b2 FS |
782 | enum { |
783 | ARG_PROPERTY = 0x100, | |
784 | ARG_VALUE, | |
b6ec23a0 | 785 | ARG_NO_PAGER, |
d6e5f170 | 786 | ARG_JSON, |
a6b4b2fa DDM |
787 | ARG_SUBSYSTEM_MATCH, |
788 | ARG_SUBSYSTEM_NOMATCH, | |
789 | ARG_ATTR_MATCH, | |
790 | ARG_ATTR_NOMATCH, | |
791 | ARG_PROPERTY_MATCH, | |
792 | ARG_TAG_MATCH, | |
793 | ARG_SYSNAME_MATCH, | |
794 | ARG_NAME_MATCH, | |
795 | ARG_PARENT_MATCH, | |
796 | ARG_INITIALIZED_MATCH, | |
797 | ARG_INITIALIZED_NOMATCH, | |
6c1482b2 FS |
798 | }; |
799 | ||
912541b0 | 800 | static const struct option options[] = { |
a6b4b2fa DDM |
801 | { "attribute-walk", no_argument, NULL, 'a' }, |
802 | { "tree", no_argument, NULL, 't' }, | |
803 | { "cleanup-db", no_argument, NULL, 'c' }, | |
804 | { "device-id-of-file", required_argument, NULL, 'd' }, | |
805 | { "export", no_argument, NULL, 'x' }, | |
806 | { "export-db", no_argument, NULL, 'e' }, | |
807 | { "export-prefix", required_argument, NULL, 'P' }, | |
808 | { "help", no_argument, NULL, 'h' }, | |
809 | { "name", required_argument, NULL, 'n' }, | |
810 | { "path", required_argument, NULL, 'p' }, | |
811 | { "property", required_argument, NULL, ARG_PROPERTY }, | |
812 | { "query", required_argument, NULL, 'q' }, | |
813 | { "root", no_argument, NULL, 'r' }, | |
814 | { "value", no_argument, NULL, ARG_VALUE }, | |
815 | { "version", no_argument, NULL, 'V' }, | |
816 | { "wait-for-initialization", optional_argument, NULL, 'w' }, | |
817 | { "no-pager", no_argument, NULL, ARG_NO_PAGER }, | |
818 | { "json", required_argument, NULL, ARG_JSON }, | |
819 | { "subsystem-match", required_argument, NULL, ARG_SUBSYSTEM_MATCH }, | |
820 | { "subsystem-nomatch", required_argument, NULL, ARG_SUBSYSTEM_NOMATCH }, | |
821 | { "attr-match", required_argument, NULL, ARG_ATTR_MATCH }, | |
822 | { "attr-nomatch", required_argument, NULL, ARG_ATTR_NOMATCH }, | |
823 | { "property-match", required_argument, NULL, ARG_PROPERTY_MATCH }, | |
824 | { "tag-match", required_argument, NULL, ARG_TAG_MATCH }, | |
825 | { "sysname-match", required_argument, NULL, ARG_SYSNAME_MATCH }, | |
826 | { "name-match", required_argument, NULL, ARG_NAME_MATCH }, | |
827 | { "parent-match", required_argument, NULL, ARG_PARENT_MATCH }, | |
828 | { "initialized-match", no_argument, NULL, ARG_INITIALIZED_MATCH }, | |
829 | { "initialized-nomatch", no_argument, NULL, ARG_INITIALIZED_NOMATCH }, | |
912541b0 KS |
830 | {} |
831 | }; | |
832 | ||
668e7c0c ZJS |
833 | ActionType action = ACTION_QUERY; |
834 | QueryType query = QUERY_ALL; | |
912541b0 | 835 | |
9117d94b | 836 | while ((c = getopt_long(argc, argv, "atced:n:p:q:rxP:w::Vh", options, NULL)) >= 0) |
7643ac9a | 837 | switch (c) { |
6c1482b2 FS |
838 | case ARG_PROPERTY: |
839 | /* Make sure that if the empty property list was specified, we won't show any | |
840 | properties. */ | |
841 | if (isempty(optarg) && !arg_properties) { | |
842 | arg_properties = new0(char*, 1); | |
843 | if (!arg_properties) | |
844 | return log_oom(); | |
845 | } else { | |
846 | r = strv_split_and_extend(&arg_properties, optarg, ",", true); | |
847 | if (r < 0) | |
848 | return log_oom(); | |
849 | } | |
850 | break; | |
851 | case ARG_VALUE: | |
852 | arg_value = true; | |
853 | break; | |
ee4a776d | 854 | case 'n': |
3c79311a ZJS |
855 | case 'p': { |
856 | const char *prefix = c == 'n' ? "/dev/" : "/sys/"; | |
857 | char *path; | |
4f5d327a | 858 | |
3c79311a ZJS |
859 | path = path_join(path_startswith(optarg, prefix) ? NULL : prefix, optarg); |
860 | if (!path) | |
861 | return log_oom(); | |
4f5d327a | 862 | |
3c79311a | 863 | r = strv_consume(&devices, path); |
13aca847 | 864 | if (r < 0) |
3c79311a | 865 | return log_oom(); |
912541b0 | 866 | break; |
3c79311a ZJS |
867 | } |
868 | ||
912541b0 KS |
869 | case 'q': |
870 | action = ACTION_QUERY; | |
44433ebd | 871 | if (streq(optarg, "property") || streq(optarg, "env")) |
912541b0 | 872 | query = QUERY_PROPERTY; |
44433ebd | 873 | else if (streq(optarg, "name")) |
912541b0 | 874 | query = QUERY_NAME; |
44433ebd | 875 | else if (streq(optarg, "symlink")) |
912541b0 | 876 | query = QUERY_SYMLINK; |
44433ebd | 877 | else if (streq(optarg, "path")) |
912541b0 | 878 | query = QUERY_PATH; |
44433ebd | 879 | else if (streq(optarg, "all")) |
912541b0 | 880 | query = QUERY_ALL; |
47c8fcbe YW |
881 | else |
882 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "unknown query type"); | |
912541b0 KS |
883 | break; |
884 | case 'r': | |
668e7c0c | 885 | arg_root = true; |
912541b0 | 886 | break; |
912541b0 KS |
887 | case 'd': |
888 | action = ACTION_DEVICE_ID_FILE; | |
1cb7d29d YW |
889 | r = free_and_strdup(&name, optarg); |
890 | if (r < 0) | |
c4abe719 | 891 | return log_oom(); |
912541b0 KS |
892 | break; |
893 | case 'a': | |
894 | action = ACTION_ATTRIBUTE_WALK; | |
895 | break; | |
9117d94b LP |
896 | case 't': |
897 | action = ACTION_TREE; | |
898 | break; | |
912541b0 | 899 | case 'e': |
d6e5f170 DDM |
900 | action = ACTION_EXPORT; |
901 | break; | |
912541b0 | 902 | case 'c': |
2024ed61 | 903 | cleanup_db(); |
44433ebd | 904 | return 0; |
912541b0 | 905 | case 'x': |
668e7c0c | 906 | arg_export = true; |
912541b0 KS |
907 | break; |
908 | case 'P': | |
2277e845 | 909 | arg_export = true; |
668e7c0c | 910 | arg_export_prefix = optarg; |
912541b0 | 911 | break; |
ae760f4b YW |
912 | case 'w': |
913 | if (optarg) { | |
914 | r = parse_sec(optarg, &arg_wait_for_initialization_timeout); | |
915 | if (r < 0) | |
916 | return log_error_errno(r, "Failed to parse timeout value: %m"); | |
917 | } else | |
918 | arg_wait_for_initialization_timeout = USEC_INFINITY; | |
919 | break; | |
912541b0 | 920 | case 'V': |
51b006e1 | 921 | return print_version(); |
912541b0 | 922 | case 'h': |
ee4a776d | 923 | return help(); |
b6ec23a0 ZJS |
924 | case ARG_NO_PAGER: |
925 | arg_pager_flags |= PAGER_DISABLE; | |
926 | break; | |
d6e5f170 DDM |
927 | |
928 | case ARG_JSON: | |
929 | r = parse_json_argument(optarg, &arg_json_format_flags); | |
930 | if (r <= 0) | |
931 | return r; | |
932 | break; | |
933 | ||
a6b4b2fa DDM |
934 | case ARG_SUBSYSTEM_MATCH: |
935 | case ARG_SUBSYSTEM_NOMATCH: | |
936 | r = ensure_device_enumerator(&e); | |
937 | if (r < 0) | |
938 | return r; | |
939 | ||
940 | r = sd_device_enumerator_add_match_subsystem(e, optarg, c == ARG_SUBSYSTEM_MATCH); | |
941 | if (r < 0) | |
942 | return log_error_errno(r, "Failed to add%s subsystem match '%s': %m", | |
943 | c == ARG_SUBSYSTEM_MATCH ? "" : " negative", optarg); | |
944 | ||
945 | break; | |
946 | ||
947 | case ARG_ATTR_MATCH: | |
948 | case ARG_ATTR_NOMATCH: { | |
949 | _cleanup_free_ char *k = NULL, *v = NULL; | |
950 | ||
951 | r = ensure_device_enumerator(&e); | |
952 | if (r < 0) | |
953 | return r; | |
954 | ||
955 | r = parse_key_value_argument(optarg, &k, &v); | |
956 | if (r < 0) | |
957 | return r; | |
958 | ||
959 | r = sd_device_enumerator_add_match_sysattr(e, k, v, c == ARG_ATTR_MATCH); | |
960 | if (r < 0) | |
961 | return log_error_errno(r, "Failed to add%s sysattr match '%s=%s': %m", | |
962 | c == ARG_ATTR_MATCH ? "" : " negative", k, v); | |
963 | break; | |
964 | } | |
965 | ||
966 | case ARG_PROPERTY_MATCH: { | |
967 | _cleanup_free_ char *k = NULL, *v = NULL; | |
968 | ||
969 | r = ensure_device_enumerator(&e); | |
970 | if (r < 0) | |
971 | return r; | |
972 | ||
973 | r = parse_key_value_argument(optarg, &k, &v); | |
974 | if (r < 0) | |
975 | return r; | |
976 | ||
977 | r = sd_device_enumerator_add_match_property_required(e, k, v); | |
978 | if (r < 0) | |
979 | return log_error_errno(r, "Failed to add property match '%s=%s': %m", k, v); | |
980 | break; | |
981 | } | |
982 | ||
983 | case ARG_TAG_MATCH: | |
984 | r = ensure_device_enumerator(&e); | |
985 | if (r < 0) | |
986 | return r; | |
987 | ||
988 | r = sd_device_enumerator_add_match_tag(e, optarg); | |
989 | if (r < 0) | |
990 | return log_error_errno(r, "Failed to add tag match '%s': %m", optarg); | |
991 | break; | |
992 | ||
993 | case ARG_SYSNAME_MATCH: | |
994 | r = ensure_device_enumerator(&e); | |
995 | if (r < 0) | |
996 | return r; | |
997 | ||
998 | r = sd_device_enumerator_add_match_sysname(e, optarg); | |
999 | if (r < 0) | |
1000 | return log_error_errno(r, "Failed to add sysname match '%s': %m", optarg); | |
1001 | break; | |
1002 | ||
1003 | case ARG_NAME_MATCH: | |
1004 | case ARG_PARENT_MATCH: { | |
1005 | _cleanup_(sd_device_unrefp) sd_device *dev = NULL; | |
1006 | ||
1007 | r = find_device(optarg, c == ARG_NAME_MATCH ? "/dev" : "/sys", &dev); | |
1008 | if (r < 0) | |
1009 | return log_error_errno(r, "Failed to open the device '%s': %m", optarg); | |
1010 | ||
1011 | r = ensure_device_enumerator(&e); | |
1012 | if (r < 0) | |
1013 | return r; | |
1014 | ||
1015 | r = device_enumerator_add_match_parent_incremental(e, dev); | |
1016 | if (r < 0) | |
1017 | return log_error_errno(r, "Failed to add parent match '%s': %m", optarg); | |
1018 | break; | |
1019 | } | |
1020 | ||
1021 | case ARG_INITIALIZED_MATCH: | |
1022 | case ARG_INITIALIZED_NOMATCH: | |
1023 | r = ensure_device_enumerator(&e); | |
1024 | if (r < 0) | |
1025 | return r; | |
1026 | ||
1027 | r = device_enumerator_add_match_is_initialized(e, c == ARG_INITIALIZED_MATCH ? MATCH_INITIALIZED_YES : MATCH_INITIALIZED_NO); | |
1028 | if (r < 0) | |
1029 | return log_error_errno(r, "Failed to set initialized filter: %m"); | |
1030 | break; | |
1031 | ||
ee4a776d YW |
1032 | case '?': |
1033 | return -EINVAL; | |
912541b0 | 1034 | default: |
04499a70 | 1035 | assert_not_reached(); |
912541b0 | 1036 | } |
912541b0 | 1037 | |
3c79311a ZJS |
1038 | if (action == ACTION_DEVICE_ID_FILE) { |
1039 | if (argv[optind]) | |
668e7c0c | 1040 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), |
3c79311a ZJS |
1041 | "Positional arguments are not allowed with -d/--device-id-of-file."); |
1042 | assert(name); | |
1043 | return stat_device(name, arg_export, arg_export_prefix); | |
668e7c0c | 1044 | } |
13aca847 | 1045 | |
a6b4b2fa DDM |
1046 | if (action == ACTION_EXPORT) { |
1047 | r = ensure_device_enumerator(&e); | |
1048 | if (r < 0) | |
1049 | return r; | |
1050 | ||
1051 | return export_devices(e); | |
1052 | } | |
d6e5f170 | 1053 | |
3c79311a ZJS |
1054 | r = strv_extend_strv(&devices, argv + optind, false); |
1055 | if (r < 0) | |
1056 | return log_error_errno(r, "Failed to build argument list: %m"); | |
19a29798 | 1057 | |
9117d94b | 1058 | if (action != ACTION_TREE && strv_isempty(devices)) |
3c79311a ZJS |
1059 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), |
1060 | "A device name or path is required"); | |
9117d94b | 1061 | if (IN_SET(action, ACTION_ATTRIBUTE_WALK, ACTION_TREE) && strv_length(devices) > 1) |
3c79311a | 1062 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), |
9117d94b | 1063 | "Only one device may be specified with -a/--attribute-walk and -t/--tree"); |
668e7c0c | 1064 | |
6c1482b2 FS |
1065 | if (arg_export && arg_value) |
1066 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
1067 | "-x/--export or -P/--export-prefix cannot be used with --value"); | |
1068 | ||
cbef829f ZJS |
1069 | pager_open(arg_pager_flags); |
1070 | ||
9117d94b LP |
1071 | if (strv_isempty(devices)) { |
1072 | assert(action == ACTION_TREE); | |
9117d94b LP |
1073 | return print_tree(NULL); |
1074 | } | |
1075 | ||
7ba77d8f | 1076 | ret = 0; |
3c79311a ZJS |
1077 | STRV_FOREACH(p, devices) { |
1078 | _cleanup_(sd_device_unrefp) sd_device *device = NULL; | |
1079 | ||
1080 | r = find_device(*p, NULL, &device); | |
7ba77d8f LP |
1081 | if (r < 0) { |
1082 | if (r == -EINVAL) | |
1083 | log_error_errno(r, "Bad argument \"%s\", expected an absolute path in /dev/ or /sys/ or a unit name: %m", *p); | |
1084 | else | |
1085 | log_error_errno(r, "Unknown device \"%s\": %m", *p); | |
1086 | ||
1087 | if (ret == 0) | |
1088 | ret = r; | |
1089 | continue; | |
1090 | } | |
3c79311a | 1091 | |
ae760f4b | 1092 | if (arg_wait_for_initialization_timeout > 0) { |
7a555216 YW |
1093 | sd_device *d; |
1094 | ||
9e3d9067 LP |
1095 | r = device_wait_for_initialization( |
1096 | device, | |
1097 | NULL, | |
4f89ce0c | 1098 | arg_wait_for_initialization_timeout, |
9e3d9067 | 1099 | &d); |
ae760f4b YW |
1100 | if (r < 0) |
1101 | return r; | |
7a555216 YW |
1102 | |
1103 | sd_device_unref(device); | |
1104 | device = d; | |
ae760f4b YW |
1105 | } |
1106 | ||
3c79311a ZJS |
1107 | if (action == ACTION_QUERY) |
1108 | r = query_device(query, device); | |
1109 | else if (action == ACTION_ATTRIBUTE_WALK) | |
1110 | r = print_device_chain(device); | |
9117d94b LP |
1111 | else if (action == ACTION_TREE) |
1112 | r = print_tree(device); | |
3c79311a | 1113 | else |
04499a70 | 1114 | assert_not_reached(); |
3c79311a ZJS |
1115 | if (r < 0) |
1116 | return r; | |
912541b0 | 1117 | } |
87171e46 | 1118 | |
7ba77d8f | 1119 | return ret; |
87171e46 | 1120 | } |