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Commit | Line | Data |
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e7145211 | 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
d46f37fd | 2 | |
d46f37fd | 3 | #include <ctype.h> |
07630cea LP |
4 | #include <errno.h> |
5 | #include <fcntl.h> | |
959e8b5d | 6 | #include <net/if.h> |
07630cea LP |
7 | #include <stddef.h> |
8 | #include <stdio.h> | |
9 | #include <stdlib.h> | |
010f917c | 10 | #include <sys/wait.h> |
07630cea | 11 | #include <unistd.h> |
d46f37fd | 12 | |
e81c3a4c YW |
13 | #include "sd-event.h" |
14 | ||
b5efdb8a | 15 | #include "alloc-util.h" |
947ce772 | 16 | #include "device-private.h" |
e9343893 | 17 | #include "device-util.h" |
3ffd4af2 | 18 | #include "fd-util.h" |
25de7aa7 | 19 | #include "fs-util.h" |
f97b34a6 | 20 | #include "format-util.h" |
5ea78a39 | 21 | #include "libudev-util.h" |
07630cea | 22 | #include "netlink-util.h" |
feaa6db7 | 23 | #include "path-util.h" |
8128f229 | 24 | #include "process-util.h" |
595225af | 25 | #include "rlimit-util.h" |
24882e06 | 26 | #include "signal-util.h" |
4cade7a1 | 27 | #include "stdio-util.h" |
07630cea | 28 | #include "string-util.h" |
5ea78a39 YW |
29 | #include "strv.h" |
30 | #include "strxcpyx.h" | |
07a26e42 | 31 | #include "udev-builtin.h" |
25de7aa7 | 32 | #include "udev-event.h" |
a2554ace | 33 | #include "udev-node.h" |
d4d690fa | 34 | #include "udev-util.h" |
70068602 | 35 | #include "udev-watch.h" |
25de7aa7 | 36 | #include "user-util.h" |
8128f229 TG |
37 | |
38 | typedef struct Spawn { | |
39 | const char *cmd; | |
40 | pid_t pid; | |
e81c3a4c YW |
41 | usec_t timeout_warn_usec; |
42 | usec_t timeout_usec; | |
43 | usec_t event_birth_usec; | |
53318514 | 44 | bool accept_failure; |
e81c3a4c YW |
45 | int fd_stdout; |
46 | int fd_stderr; | |
47 | char *result; | |
48 | size_t result_size; | |
49 | size_t result_len; | |
8128f229 | 50 | } Spawn; |
d46f37fd | 51 | |
2e088715 ZJS |
52 | UdevEvent *udev_event_new(sd_device *dev, usec_t exec_delay_usec, sd_netlink *rtnl) { |
53 | UdevEvent *event; | |
912541b0 | 54 | |
89665d09 YW |
55 | assert(dev); |
56 | ||
2e088715 | 57 | event = new(UdevEvent, 1); |
89665d09 | 58 | if (!event) |
912541b0 | 59 | return NULL; |
89665d09 | 60 | |
2e088715 | 61 | *event = (UdevEvent) { |
cf28ad46 | 62 | .dev = sd_device_ref(dev), |
89665d09 | 63 | .birth_usec = now(CLOCK_MONOTONIC), |
6b92f429 | 64 | .exec_delay_usec = exec_delay_usec, |
e0bb2ff9 | 65 | .rtnl = sd_netlink_ref(rtnl), |
25de7aa7 YW |
66 | .uid = UID_INVALID, |
67 | .gid = GID_INVALID, | |
68 | .mode = MODE_INVALID, | |
89665d09 YW |
69 | }; |
70 | ||
912541b0 | 71 | return event; |
aa8734ff KS |
72 | } |
73 | ||
2e088715 | 74 | UdevEvent *udev_event_free(UdevEvent *event) { |
c1118ceb YW |
75 | if (!event) |
76 | return NULL; | |
77 | ||
cf28ad46 | 78 | sd_device_unref(event->dev); |
480ecb7d | 79 | sd_device_unref(event->dev_db_clone); |
1c4baffc | 80 | sd_netlink_unref(event->rtnl); |
39a15c8a YW |
81 | ordered_hashmap_free_free_key(event->run_list); |
82 | ordered_hashmap_free_free_free(event->seclabel_list); | |
912541b0 KS |
83 | free(event->program_result); |
84 | free(event->name); | |
c1118ceb YW |
85 | |
86 | return mfree(event); | |
aa8734ff KS |
87 | } |
88 | ||
7e9c23dd YW |
89 | typedef enum { |
90 | FORMAT_SUBST_DEVNODE, | |
91 | FORMAT_SUBST_ATTR, | |
92 | FORMAT_SUBST_ENV, | |
93 | FORMAT_SUBST_KERNEL, | |
94 | FORMAT_SUBST_KERNEL_NUMBER, | |
95 | FORMAT_SUBST_DRIVER, | |
96 | FORMAT_SUBST_DEVPATH, | |
97 | FORMAT_SUBST_ID, | |
98 | FORMAT_SUBST_MAJOR, | |
99 | FORMAT_SUBST_MINOR, | |
100 | FORMAT_SUBST_RESULT, | |
101 | FORMAT_SUBST_PARENT, | |
102 | FORMAT_SUBST_NAME, | |
103 | FORMAT_SUBST_LINKS, | |
104 | FORMAT_SUBST_ROOT, | |
105 | FORMAT_SUBST_SYS, | |
106 | _FORMAT_SUBST_TYPE_MAX, | |
107 | _FORMAT_SUBST_TYPE_INVALID = -1 | |
108 | } FormatSubstitutionType; | |
0d53705b | 109 | |
9204d802 YW |
110 | struct subst_map_entry { |
111 | const char *name; | |
112 | const char fmt; | |
7e9c23dd | 113 | FormatSubstitutionType type; |
9204d802 YW |
114 | }; |
115 | ||
116 | static const struct subst_map_entry map[] = { | |
7e9c23dd YW |
117 | { .name = "devnode", .fmt = 'N', .type = FORMAT_SUBST_DEVNODE }, |
118 | { .name = "tempnode", .fmt = 'N', .type = FORMAT_SUBST_DEVNODE }, | |
119 | { .name = "attr", .fmt = 's', .type = FORMAT_SUBST_ATTR }, | |
120 | { .name = "sysfs", .fmt = 's', .type = FORMAT_SUBST_ATTR }, | |
121 | { .name = "env", .fmt = 'E', .type = FORMAT_SUBST_ENV }, | |
122 | { .name = "kernel", .fmt = 'k', .type = FORMAT_SUBST_KERNEL }, | |
123 | { .name = "number", .fmt = 'n', .type = FORMAT_SUBST_KERNEL_NUMBER }, | |
124 | { .name = "driver", .fmt = 'd', .type = FORMAT_SUBST_DRIVER }, | |
125 | { .name = "devpath", .fmt = 'p', .type = FORMAT_SUBST_DEVPATH }, | |
126 | { .name = "id", .fmt = 'b', .type = FORMAT_SUBST_ID }, | |
127 | { .name = "major", .fmt = 'M', .type = FORMAT_SUBST_MAJOR }, | |
128 | { .name = "minor", .fmt = 'm', .type = FORMAT_SUBST_MINOR }, | |
129 | { .name = "result", .fmt = 'c', .type = FORMAT_SUBST_RESULT }, | |
130 | { .name = "parent", .fmt = 'P', .type = FORMAT_SUBST_PARENT }, | |
131 | { .name = "name", .fmt = 'D', .type = FORMAT_SUBST_NAME }, | |
132 | { .name = "links", .fmt = 'L', .type = FORMAT_SUBST_LINKS }, | |
133 | { .name = "root", .fmt = 'r', .type = FORMAT_SUBST_ROOT }, | |
134 | { .name = "sys", .fmt = 'S', .type = FORMAT_SUBST_SYS }, | |
9204d802 YW |
135 | }; |
136 | ||
2e088715 | 137 | static ssize_t subst_format_var(UdevEvent *event, |
4cade7a1 YW |
138 | const struct subst_map_entry *entry, char *attr, |
139 | char *dest, size_t l) { | |
cf28ad46 | 140 | sd_device *parent, *dev = event->dev; |
4cade7a1 | 141 | const char *val = NULL; |
be452683 | 142 | char *s = dest; |
4cade7a1 YW |
143 | dev_t devnum; |
144 | int r; | |
0d53705b | 145 | |
9204d802 YW |
146 | assert(entry); |
147 | ||
148 | switch (entry->type) { | |
7e9c23dd | 149 | case FORMAT_SUBST_DEVPATH: |
4cade7a1 YW |
150 | r = sd_device_get_devpath(dev, &val); |
151 | if (r < 0) | |
152 | return r; | |
153 | l = strpcpy(&s, l, val); | |
0d53705b | 154 | break; |
7e9c23dd | 155 | case FORMAT_SUBST_KERNEL: |
4cade7a1 YW |
156 | r = sd_device_get_sysname(dev, &val); |
157 | if (r < 0) | |
158 | return r; | |
159 | l = strpcpy(&s, l, val); | |
0d53705b | 160 | break; |
7e9c23dd | 161 | case FORMAT_SUBST_KERNEL_NUMBER: |
4cade7a1 | 162 | r = sd_device_get_sysnum(dev, &val); |
380d1901 YW |
163 | if (r == -ENOENT) |
164 | goto null_terminate; | |
4cade7a1 | 165 | if (r < 0) |
380d1901 | 166 | return r; |
4cade7a1 | 167 | l = strpcpy(&s, l, val); |
0d53705b | 168 | break; |
7e9c23dd | 169 | case FORMAT_SUBST_ID: |
4cade7a1 | 170 | if (!event->dev_parent) |
380d1901 | 171 | goto null_terminate; |
f3d241fe | 172 | r = sd_device_get_sysname(event->dev_parent, &val); |
4cade7a1 YW |
173 | if (r < 0) |
174 | return r; | |
175 | l = strpcpy(&s, l, val); | |
0d53705b | 176 | break; |
7e9c23dd | 177 | case FORMAT_SUBST_DRIVER: |
4cade7a1 | 178 | if (!event->dev_parent) |
380d1901 | 179 | goto null_terminate; |
f3d241fe | 180 | r = sd_device_get_driver(event->dev_parent, &val); |
380d1901 YW |
181 | if (r == -ENOENT) |
182 | goto null_terminate; | |
4cade7a1 | 183 | if (r < 0) |
380d1901 | 184 | return r; |
4cade7a1 | 185 | l = strpcpy(&s, l, val); |
0d53705b | 186 | break; |
7e9c23dd YW |
187 | case FORMAT_SUBST_MAJOR: |
188 | case FORMAT_SUBST_MINOR: { | |
4cade7a1 | 189 | char buf[DECIMAL_STR_MAX(unsigned)]; |
0d53705b | 190 | |
4cade7a1 YW |
191 | r = sd_device_get_devnum(dev, &devnum); |
192 | if (r < 0 && r != -ENOENT) | |
193 | return r; | |
7e9c23dd | 194 | xsprintf(buf, "%u", r < 0 ? 0 : entry->type == FORMAT_SUBST_MAJOR ? major(devnum) : minor(devnum)); |
4cade7a1 | 195 | l = strpcpy(&s, l, buf); |
0d53705b DS |
196 | break; |
197 | } | |
7e9c23dd | 198 | case FORMAT_SUBST_RESULT: { |
0d53705b DS |
199 | char *rest; |
200 | int i; | |
201 | ||
4cade7a1 | 202 | if (!event->program_result) |
380d1901 | 203 | goto null_terminate; |
4cade7a1 | 204 | |
0d53705b DS |
205 | /* get part of the result string */ |
206 | i = 0; | |
4cade7a1 | 207 | if (attr) |
0d53705b DS |
208 | i = strtoul(attr, &rest, 10); |
209 | if (i > 0) { | |
4cade7a1 | 210 | char result[UTIL_PATH_SIZE], tmp[UTIL_PATH_SIZE], *cpos; |
0d53705b DS |
211 | |
212 | strscpy(result, sizeof(result), event->program_result); | |
213 | cpos = result; | |
214 | while (--i) { | |
215 | while (cpos[0] != '\0' && !isspace(cpos[0])) | |
216 | cpos++; | |
217 | while (isspace(cpos[0])) | |
218 | cpos++; | |
219 | if (cpos[0] == '\0') | |
220 | break; | |
221 | } | |
222 | if (i > 0) { | |
223 | log_error("requested part of result string not found"); | |
224 | break; | |
225 | } | |
226 | strscpy(tmp, sizeof(tmp), cpos); | |
227 | /* %{2+}c copies the whole string from the second part on */ | |
228 | if (rest[0] != '+') { | |
229 | cpos = strchr(tmp, ' '); | |
230 | if (cpos) | |
231 | cpos[0] = '\0'; | |
232 | } | |
233 | l = strpcpy(&s, l, tmp); | |
4cade7a1 | 234 | } else |
0d53705b | 235 | l = strpcpy(&s, l, event->program_result); |
0d53705b DS |
236 | break; |
237 | } | |
7e9c23dd | 238 | case FORMAT_SUBST_ATTR: { |
0d53705b DS |
239 | char vbuf[UTIL_NAME_SIZE]; |
240 | size_t len; | |
241 | int count; | |
242 | ||
4cade7a1 YW |
243 | if (!attr) |
244 | return -EINVAL; | |
0d53705b DS |
245 | |
246 | /* try to read the value specified by "[dmi/id]product_name" */ | |
3839535a | 247 | if (util_resolve_subsys_kernel(attr, vbuf, sizeof(vbuf), true) == 0) |
4cade7a1 | 248 | val = vbuf; |
0d53705b DS |
249 | |
250 | /* try to read the attribute the device */ | |
4cade7a1 YW |
251 | if (!val) |
252 | (void) sd_device_get_sysattr_value(dev, attr, &val); | |
0d53705b DS |
253 | |
254 | /* try to read the attribute of the parent device, other matches have selected */ | |
f3d241fe YW |
255 | if (!val && event->dev_parent && event->dev_parent != dev) |
256 | (void) sd_device_get_sysattr_value(event->dev_parent, attr, &val); | |
0d53705b | 257 | |
4cade7a1 | 258 | if (!val) |
380d1901 | 259 | goto null_terminate; |
0d53705b DS |
260 | |
261 | /* strip trailing whitespace, and replace unwanted characters */ | |
4cade7a1 YW |
262 | if (val != vbuf) |
263 | strscpy(vbuf, sizeof(vbuf), val); | |
0d53705b DS |
264 | len = strlen(vbuf); |
265 | while (len > 0 && isspace(vbuf[--len])) | |
266 | vbuf[len] = '\0'; | |
267 | count = util_replace_chars(vbuf, UDEV_ALLOWED_CHARS_INPUT); | |
268 | if (count > 0) | |
4cade7a1 | 269 | log_device_debug(dev, "%i character(s) replaced", count); |
0d53705b DS |
270 | l = strpcpy(&s, l, vbuf); |
271 | break; | |
272 | } | |
7e9c23dd | 273 | case FORMAT_SUBST_PARENT: |
4cade7a1 | 274 | r = sd_device_get_parent(dev, &parent); |
380d1901 YW |
275 | if (r == -ENODEV) |
276 | goto null_terminate; | |
4cade7a1 | 277 | if (r < 0) |
380d1901 | 278 | return r; |
4cade7a1 | 279 | r = sd_device_get_devname(parent, &val); |
380d1901 YW |
280 | if (r == -ENOENT) |
281 | goto null_terminate; | |
4cade7a1 | 282 | if (r < 0) |
380d1901 | 283 | return r; |
4cade7a1 | 284 | l = strpcpy(&s, l, val + STRLEN("/dev/")); |
0d53705b | 285 | break; |
7e9c23dd | 286 | case FORMAT_SUBST_DEVNODE: |
4cade7a1 | 287 | r = sd_device_get_devname(dev, &val); |
380d1901 YW |
288 | if (r == -ENOENT) |
289 | goto null_terminate; | |
4cade7a1 | 290 | if (r < 0) |
380d1901 | 291 | return r; |
4cade7a1 | 292 | l = strpcpy(&s, l, val); |
0d53705b | 293 | break; |
7e9c23dd | 294 | case FORMAT_SUBST_NAME: |
4cade7a1 | 295 | if (event->name) |
0d53705b | 296 | l = strpcpy(&s, l, event->name); |
4cade7a1 YW |
297 | else if (sd_device_get_devname(dev, &val) >= 0) |
298 | l = strpcpy(&s, l, val + STRLEN("/dev/")); | |
299 | else { | |
300 | r = sd_device_get_sysname(dev, &val); | |
301 | if (r < 0) | |
302 | return r; | |
303 | l = strpcpy(&s, l, val); | |
304 | } | |
0d53705b | 305 | break; |
7e9c23dd | 306 | case FORMAT_SUBST_LINKS: |
4cade7a1 YW |
307 | FOREACH_DEVICE_DEVLINK(dev, val) |
308 | if (s == dest) | |
309 | l = strpcpy(&s, l, val + STRLEN("/dev/")); | |
310 | else | |
311 | l = strpcpyl(&s, l, " ", val + STRLEN("/dev/"), NULL); | |
380d1901 YW |
312 | if (s == dest) |
313 | goto null_terminate; | |
0d53705b | 314 | break; |
7e9c23dd | 315 | case FORMAT_SUBST_ROOT: |
0d53705b DS |
316 | l = strpcpy(&s, l, "/dev"); |
317 | break; | |
7e9c23dd | 318 | case FORMAT_SUBST_SYS: |
0d53705b DS |
319 | l = strpcpy(&s, l, "/sys"); |
320 | break; | |
7e9c23dd | 321 | case FORMAT_SUBST_ENV: |
4cade7a1 | 322 | if (!attr) |
380d1901 | 323 | goto null_terminate; |
4cade7a1 | 324 | r = sd_device_get_property_value(dev, attr, &val); |
380d1901 YW |
325 | if (r == -ENOENT) |
326 | goto null_terminate; | |
4cade7a1 | 327 | if (r < 0) |
380d1901 | 328 | return r; |
4cade7a1 YW |
329 | l = strpcpy(&s, l, val); |
330 | break; | |
0d53705b | 331 | default: |
9204d802 | 332 | assert_not_reached("Unknown format substitution type"); |
0d53705b DS |
333 | } |
334 | ||
be452683 | 335 | return s - dest; |
380d1901 YW |
336 | |
337 | null_terminate: | |
338 | *s = '\0'; | |
339 | return 0; | |
0d53705b DS |
340 | } |
341 | ||
2e088715 | 342 | ssize_t udev_event_apply_format(UdevEvent *event, |
4cade7a1 YW |
343 | const char *src, char *dest, size_t size, |
344 | bool replace_whitespace) { | |
912541b0 KS |
345 | const char *from; |
346 | char *s; | |
347 | size_t l; | |
348 | ||
a368732b YW |
349 | assert(event); |
350 | assert(event->dev); | |
351 | assert(src); | |
352 | assert(dest); | |
353 | assert(size > 0); | |
3b64e4d4 | 354 | |
912541b0 KS |
355 | from = src; |
356 | s = dest; | |
357 | l = size; | |
358 | ||
359 | for (;;) { | |
9204d802 | 360 | const struct subst_map_entry *entry = NULL; |
4cade7a1 YW |
361 | char attrbuf[UTIL_PATH_SIZE], *attr; |
362 | bool format_dollar = false; | |
363 | ssize_t subst_len; | |
912541b0 KS |
364 | |
365 | while (from[0] != '\0') { | |
366 | if (from[0] == '$') { | |
367 | /* substitute named variable */ | |
14cb109d | 368 | unsigned i; |
912541b0 KS |
369 | |
370 | if (from[1] == '$') { | |
371 | from++; | |
372 | goto copy; | |
373 | } | |
374 | ||
8fef0ff2 | 375 | for (i = 0; i < ELEMENTSOF(map); i++) { |
33502ffe | 376 | if (startswith(&from[1], map[i].name)) { |
9204d802 | 377 | entry = &map[i]; |
912541b0 | 378 | from += strlen(map[i].name)+1; |
4cade7a1 | 379 | format_dollar = true; |
912541b0 KS |
380 | goto subst; |
381 | } | |
382 | } | |
383 | } else if (from[0] == '%') { | |
384 | /* substitute format char */ | |
14cb109d | 385 | unsigned i; |
912541b0 KS |
386 | |
387 | if (from[1] == '%') { | |
388 | from++; | |
389 | goto copy; | |
390 | } | |
391 | ||
8fef0ff2 | 392 | for (i = 0; i < ELEMENTSOF(map); i++) { |
912541b0 | 393 | if (from[1] == map[i].fmt) { |
9204d802 | 394 | entry = &map[i]; |
912541b0 | 395 | from += 2; |
912541b0 KS |
396 | goto subst; |
397 | } | |
398 | } | |
399 | } | |
065db052 | 400 | copy: |
912541b0 | 401 | /* copy char */ |
79a695f2 | 402 | if (l < 2) /* need space for this char and the terminating NUL */ |
912541b0 KS |
403 | goto out; |
404 | s[0] = from[0]; | |
405 | from++; | |
406 | s++; | |
407 | l--; | |
408 | } | |
409 | ||
410 | goto out; | |
065db052 | 411 | subst: |
912541b0 KS |
412 | /* extract possible $format{attr} */ |
413 | if (from[0] == '{') { | |
14cb109d | 414 | unsigned i; |
912541b0 KS |
415 | |
416 | from++; | |
79a695f2 | 417 | for (i = 0; from[i] != '}'; i++) |
912541b0 | 418 | if (from[i] == '\0') { |
9f6445e3 | 419 | log_error("missing closing brace for format '%s'", src); |
912541b0 KS |
420 | goto out; |
421 | } | |
79a695f2 | 422 | |
912541b0 KS |
423 | if (i >= sizeof(attrbuf)) |
424 | goto out; | |
425 | memcpy(attrbuf, from, i); | |
426 | attrbuf[i] = '\0'; | |
427 | from += i+1; | |
428 | attr = attrbuf; | |
4cade7a1 | 429 | } else |
912541b0 | 430 | attr = NULL; |
912541b0 | 431 | |
9204d802 | 432 | subst_len = subst_format_var(event, entry, attr, s, l); |
4cade7a1 YW |
433 | if (subst_len < 0) { |
434 | if (format_dollar) | |
cf28ad46 | 435 | log_device_warning_errno(event->dev, subst_len, "Failed to substitute variable '$%s', ignoring: %m", entry->name); |
4cade7a1 | 436 | else |
cf28ad46 | 437 | log_device_warning_errno(event->dev, subst_len, "Failed to apply format '%%%c', ignoring: %m", entry->fmt); |
4cade7a1 YW |
438 | |
439 | continue; | |
440 | } | |
e20a9171 | 441 | |
7e9c23dd YW |
442 | /* FORMAT_SUBST_RESULT handles spaces itself */ |
443 | if (replace_whitespace && entry->type != FORMAT_SUBST_RESULT) | |
be452683 DS |
444 | /* util_replace_whitespace can replace in-place, |
445 | * and does nothing if subst_len == 0 | |
446 | */ | |
447 | subst_len = util_replace_whitespace(s, s, subst_len); | |
e20a9171 | 448 | |
be452683 DS |
449 | s += subst_len; |
450 | l -= subst_len; | |
912541b0 | 451 | } |
065db052 KS |
452 | |
453 | out: | |
79a695f2 | 454 | assert(l >= 1); |
912541b0 | 455 | s[0] = '\0'; |
912541b0 | 456 | return l; |
f1128767 KS |
457 | } |
458 | ||
e81c3a4c YW |
459 | static int on_spawn_io(sd_event_source *s, int fd, uint32_t revents, void *userdata) { |
460 | Spawn *spawn = userdata; | |
461 | char buf[4096], *p; | |
462 | size_t size; | |
463 | ssize_t l; | |
912541b0 | 464 | |
e81c3a4c YW |
465 | assert(spawn); |
466 | assert(fd == spawn->fd_stdout || fd == spawn->fd_stderr); | |
467 | assert(!spawn->result || spawn->result_len < spawn->result_size); | |
468 | ||
469 | if (fd == spawn->fd_stdout && spawn->result) { | |
470 | p = spawn->result + spawn->result_len; | |
471 | size = spawn->result_size - spawn->result_len; | |
472 | } else { | |
473 | p = buf; | |
474 | size = sizeof(buf); | |
912541b0 KS |
475 | } |
476 | ||
e81c3a4c YW |
477 | l = read(fd, p, size - 1); |
478 | if (l < 0) { | |
479 | if (errno != EAGAIN) | |
480 | log_error_errno(errno, "Failed to read stdout of '%s': %m", spawn->cmd); | |
912541b0 | 481 | |
e81c3a4c | 482 | return 0; |
912541b0 KS |
483 | } |
484 | ||
e81c3a4c YW |
485 | p[l] = '\0'; |
486 | if (fd == spawn->fd_stdout && spawn->result) | |
487 | spawn->result_len += l; | |
912541b0 | 488 | |
e81c3a4c YW |
489 | /* Log output only if we watch stderr. */ |
490 | if (l > 0 && spawn->fd_stderr >= 0) { | |
491 | _cleanup_strv_free_ char **v = NULL; | |
492 | char **q; | |
912541b0 | 493 | |
e81c3a4c YW |
494 | v = strv_split_newlines(p); |
495 | if (!v) | |
496 | return 0; | |
912541b0 | 497 | |
e81c3a4c YW |
498 | STRV_FOREACH(q, v) |
499 | log_debug("'%s'(%s) '%s'", spawn->cmd, | |
500 | fd == spawn->fd_stdout ? "out" : "err", *q); | |
912541b0 KS |
501 | } |
502 | ||
e81c3a4c | 503 | return 0; |
2181d30a KS |
504 | } |
505 | ||
8128f229 TG |
506 | static int on_spawn_timeout(sd_event_source *s, uint64_t usec, void *userdata) { |
507 | Spawn *spawn = userdata; | |
4375dab5 | 508 | char timeout[FORMAT_TIMESPAN_MAX]; |
912541b0 | 509 | |
8128f229 | 510 | assert(spawn); |
912541b0 | 511 | |
8128f229 | 512 | kill_and_sigcont(spawn->pid, SIGKILL); |
912541b0 | 513 | |
5ca3dbc9 | 514 | log_error("Spawned process '%s' ["PID_FMT"] timed out after %s, killing", spawn->cmd, spawn->pid, |
4375dab5 | 515 | format_timespan(timeout, sizeof(timeout), spawn->timeout_usec, USEC_PER_SEC)); |
912541b0 | 516 | |
8128f229 TG |
517 | return 1; |
518 | } | |
67117413 | 519 | |
8128f229 TG |
520 | static int on_spawn_timeout_warning(sd_event_source *s, uint64_t usec, void *userdata) { |
521 | Spawn *spawn = userdata; | |
4375dab5 | 522 | char timeout[FORMAT_TIMESPAN_MAX]; |
912541b0 | 523 | |
8128f229 | 524 | assert(spawn); |
67117413 | 525 | |
5ca3dbc9 | 526 | log_warning("Spawned process '%s' ["PID_FMT"] is taking longer than %s to complete", spawn->cmd, spawn->pid, |
4375dab5 | 527 | format_timespan(timeout, sizeof(timeout), spawn->timeout_warn_usec, USEC_PER_SEC)); |
8128f229 TG |
528 | |
529 | return 1; | |
530 | } | |
531 | ||
532 | static int on_spawn_sigchld(sd_event_source *s, const siginfo_t *si, void *userdata) { | |
533 | Spawn *spawn = userdata; | |
a7521142 | 534 | int ret = -EIO; |
8128f229 TG |
535 | |
536 | assert(spawn); | |
537 | ||
538 | switch (si->si_code) { | |
539 | case CLD_EXITED: | |
a7521142 | 540 | if (si->si_status == 0) |
53318514 | 541 | log_debug("Process '%s' succeeded.", spawn->cmd); |
a7521142 ZJS |
542 | else |
543 | log_full(spawn->accept_failure ? LOG_DEBUG : LOG_WARNING, | |
544 | "Process '%s' failed with exit code %i.", spawn->cmd, si->si_status); | |
545 | ret = si->si_status; | |
8128f229 TG |
546 | break; |
547 | case CLD_KILLED: | |
548 | case CLD_DUMPED: | |
a7521142 | 549 | log_error("Process '%s' terminated by signal %s.", spawn->cmd, signal_to_string(si->si_status)); |
8128f229 TG |
550 | break; |
551 | default: | |
53318514 | 552 | log_error("Process '%s' failed due to unknown reason.", spawn->cmd); |
8128f229 | 553 | } |
912541b0 | 554 | |
a7521142 | 555 | sd_event_exit(sd_event_source_get_event(s), ret); |
8128f229 TG |
556 | return 1; |
557 | } | |
558 | ||
e81c3a4c | 559 | static int spawn_wait(Spawn *spawn) { |
4afd3348 | 560 | _cleanup_(sd_event_unrefp) sd_event *e = NULL; |
a7521142 | 561 | int r; |
8128f229 | 562 | |
e81c3a4c YW |
563 | assert(spawn); |
564 | ||
8128f229 TG |
565 | r = sd_event_new(&e); |
566 | if (r < 0) | |
567 | return r; | |
568 | ||
e81c3a4c | 569 | if (spawn->timeout_usec > 0) { |
8128f229 TG |
570 | usec_t usec, age_usec; |
571 | ||
3285baa8 | 572 | usec = now(CLOCK_MONOTONIC); |
e81c3a4c YW |
573 | age_usec = usec - spawn->event_birth_usec; |
574 | if (age_usec < spawn->timeout_usec) { | |
575 | if (spawn->timeout_warn_usec > 0 && | |
576 | spawn->timeout_warn_usec < spawn->timeout_usec && | |
577 | spawn->timeout_warn_usec > age_usec) { | |
578 | spawn->timeout_warn_usec -= age_usec; | |
8128f229 | 579 | |
3285baa8 | 580 | r = sd_event_add_time(e, NULL, CLOCK_MONOTONIC, |
e81c3a4c YW |
581 | usec + spawn->timeout_warn_usec, USEC_PER_SEC, |
582 | on_spawn_timeout_warning, spawn); | |
8128f229 TG |
583 | if (r < 0) |
584 | return r; | |
912541b0 | 585 | } |
8128f229 | 586 | |
e81c3a4c | 587 | spawn->timeout_usec -= age_usec; |
8128f229 | 588 | |
3285baa8 | 589 | r = sd_event_add_time(e, NULL, CLOCK_MONOTONIC, |
e81c3a4c | 590 | usec + spawn->timeout_usec, USEC_PER_SEC, on_spawn_timeout, spawn); |
8128f229 TG |
591 | if (r < 0) |
592 | return r; | |
912541b0 KS |
593 | } |
594 | } | |
8128f229 | 595 | |
adeb26c1 YW |
596 | if (spawn->fd_stdout >= 0) { |
597 | r = sd_event_add_io(e, NULL, spawn->fd_stdout, EPOLLIN, on_spawn_io, spawn); | |
598 | if (r < 0) | |
599 | return r; | |
600 | } | |
e81c3a4c | 601 | |
adeb26c1 YW |
602 | if (spawn->fd_stderr >= 0) { |
603 | r = sd_event_add_io(e, NULL, spawn->fd_stderr, EPOLLIN, on_spawn_io, spawn); | |
604 | if (r < 0) | |
605 | return r; | |
606 | } | |
e81c3a4c YW |
607 | |
608 | r = sd_event_add_child(e, NULL, spawn->pid, WEXITED, on_spawn_sigchld, spawn); | |
8128f229 TG |
609 | if (r < 0) |
610 | return r; | |
611 | ||
a7521142 | 612 | return sd_event_loop(e); |
2181d30a KS |
613 | } |
614 | ||
2e088715 | 615 | int udev_event_spawn(UdevEvent *event, |
dd5eddd2 | 616 | usec_t timeout_usec, |
53318514 | 617 | bool accept_failure, |
bbf35206 | 618 | const char *cmd, |
dd5eddd2 | 619 | char *result, size_t ressize) { |
feaa6db7 YW |
620 | _cleanup_close_pair_ int outpipe[2] = {-1, -1}, errpipe[2] = {-1, -1}; |
621 | _cleanup_strv_free_ char **argv = NULL; | |
947ce772 | 622 | char **envp = NULL; |
e81c3a4c | 623 | Spawn spawn; |
912541b0 | 624 | pid_t pid; |
feaa6db7 | 625 | int r; |
912541b0 | 626 | |
dc8aec36 YW |
627 | assert(event); |
628 | assert(event->dev); | |
e81c3a4c YW |
629 | assert(result || ressize == 0); |
630 | ||
912541b0 | 631 | /* pipes from child to parent */ |
2e48548f | 632 | if (result || log_get_max_level() >= LOG_INFO) |
f71e8ec1 | 633 | if (pipe2(outpipe, O_NONBLOCK|O_CLOEXEC) != 0) |
feaa6db7 | 634 | return log_error_errno(errno, "Failed to create pipe for command '%s': %m", cmd); |
912541b0 | 635 | |
feaa6db7 | 636 | if (log_get_max_level() >= LOG_INFO) |
f71e8ec1 | 637 | if (pipe2(errpipe, O_NONBLOCK|O_CLOEXEC) != 0) |
feaa6db7 YW |
638 | return log_error_errno(errno, "Failed to create pipe for command '%s': %m", cmd); |
639 | ||
640 | argv = strv_split_full(cmd, NULL, SPLIT_QUOTES|SPLIT_RELAX); | |
641 | if (!argv) | |
642 | return log_oom(); | |
643 | ||
baaa35ad ZJS |
644 | if (isempty(argv[0])) |
645 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
646 | "Invalid command '%s'", cmd); | |
dc8aec36 | 647 | |
feaa6db7 YW |
648 | /* allow programs in /usr/lib/udev/ to be called without the path */ |
649 | if (!path_is_absolute(argv[0])) { | |
650 | char *program; | |
651 | ||
62a85ee0 | 652 | program = path_join(UDEVLIBEXECDIR, argv[0]); |
feaa6db7 YW |
653 | if (!program) |
654 | return log_oom(); | |
bbf35206 | 655 | |
feaa6db7 YW |
656 | free_and_replace(argv[0], program); |
657 | } | |
658 | ||
cf28ad46 | 659 | r = device_get_properties_strv(event->dev, &envp); |
947ce772 | 660 | if (r < 0) |
cf28ad46 | 661 | return log_device_error_errno(event->dev, r, "Failed to get device properties"); |
947ce772 | 662 | |
3ad4d482 YW |
663 | log_debug("Starting '%s'", cmd); |
664 | ||
6ce075a2 | 665 | r = safe_fork("(spawn)", FORK_RESET_SIGNALS|FORK_DEATHSIG|FORK_LOG, &pid); |
feaa6db7 YW |
666 | if (r < 0) |
667 | return log_error_errno(r, "Failed to fork() to execute command '%s': %m", cmd); | |
668 | if (r == 0) { | |
84b1ccb9 YW |
669 | if (rearrange_stdio(-1, outpipe[WRITE_END], errpipe[WRITE_END]) < 0) |
670 | _exit(EXIT_FAILURE); | |
912541b0 | 671 | |
84b1ccb9 | 672 | (void) close_all_fds(NULL, 0); |
595225af | 673 | (void) rlimit_nofile_safe(); |
912541b0 | 674 | |
947ce772 | 675 | execve(argv[0], argv, envp); |
84b1ccb9 | 676 | _exit(EXIT_FAILURE); |
bbf35206 | 677 | } |
912541b0 | 678 | |
4c253ed1 LP |
679 | /* parent closed child's ends of pipes */ |
680 | outpipe[WRITE_END] = safe_close(outpipe[WRITE_END]); | |
681 | errpipe[WRITE_END] = safe_close(errpipe[WRITE_END]); | |
912541b0 | 682 | |
e81c3a4c YW |
683 | spawn = (Spawn) { |
684 | .cmd = cmd, | |
685 | .pid = pid, | |
686 | .accept_failure = accept_failure, | |
66f737b4 | 687 | .timeout_warn_usec = udev_warn_timeout(timeout_usec), |
e81c3a4c YW |
688 | .timeout_usec = timeout_usec, |
689 | .event_birth_usec = event->birth_usec, | |
690 | .fd_stdout = outpipe[READ_END], | |
691 | .fd_stderr = errpipe[READ_END], | |
692 | .result = result, | |
693 | .result_size = ressize, | |
694 | }; | |
695 | r = spawn_wait(&spawn); | |
feaa6db7 | 696 | if (r < 0) |
a7521142 | 697 | return log_error_errno(r, "Failed to wait for spawned command '%s': %m", cmd); |
2181d30a | 698 | |
e81c3a4c YW |
699 | if (result) |
700 | result[spawn.result_len] = '\0'; | |
701 | ||
a7521142 | 702 | return r; /* 0 for success, and positive if the program failed */ |
2181d30a KS |
703 | } |
704 | ||
2e088715 | 705 | static int rename_netif(UdevEvent *event) { |
cf28ad46 | 706 | sd_device *dev = event->dev; |
d4d690fa | 707 | const char *oldname; |
2740750d YW |
708 | int ifindex, r; |
709 | ||
710 | if (!event->name) | |
711 | return 0; /* No new name is requested. */ | |
712 | ||
713 | r = sd_device_get_sysname(dev, &oldname); | |
714 | if (r < 0) | |
715 | return log_device_error_errno(dev, r, "Failed to get sysname: %m"); | |
716 | ||
717 | if (streq(event->name, oldname)) | |
718 | return 0; /* The interface name is already requested name. */ | |
719 | ||
d4d690fa | 720 | if (!device_for_action(dev, DEVICE_ACTION_ADD)) |
2740750d | 721 | return 0; /* Rename the interface only when it is added. */ |
16d26d55 | 722 | |
2740750d YW |
723 | r = sd_device_get_ifindex(dev, &ifindex); |
724 | if (r == -ENOENT) | |
725 | return 0; /* Device is not a network interface. */ | |
726 | if (r < 0) | |
727 | return log_device_error_errno(dev, r, "Failed to get ifindex: %m"); | |
912541b0 | 728 | |
589384be | 729 | r = rtnl_set_link_name(&event->rtnl, ifindex, event->name); |
2740750d | 730 | if (r < 0) |
589384be YW |
731 | return log_device_error_errno(dev, r, "Failed to rename network interface %i from '%s' to '%s': %m", |
732 | ifindex, oldname, event->name); | |
912541b0 | 733 | |
a4055a60 YW |
734 | /* Set ID_RENAMING boolean property here, and drop it in the corresponding move uevent later. */ |
735 | r = device_add_property(dev, "ID_RENAMING", "1"); | |
736 | if (r < 0) | |
737 | log_device_warning_errno(dev, r, "Failed to add 'ID_RENAMING' property: %m"); | |
912541b0 | 738 | |
2740750d | 739 | r = device_rename(dev, event->name); |
f647962d | 740 | if (r < 0) |
a4055a60 | 741 | log_device_warning_errno(dev, r, "Failed to update properties with new name '%s': %m", event->name); |
16d26d55 | 742 | |
589384be | 743 | log_device_debug(dev, "Network interface %i is renamed from '%s' to '%s'", ifindex, oldname, event->name); |
16d26d55 | 744 | |
2740750d | 745 | return 1; |
d46f37fd KS |
746 | } |
747 | ||
2e088715 | 748 | static int update_devnode(UdevEvent *event) { |
cf28ad46 | 749 | sd_device *dev = event->dev; |
e52eaf56 YW |
750 | bool apply; |
751 | int r; | |
752 | ||
7af1c780 | 753 | r = sd_device_get_devnum(dev, NULL); |
e52eaf56 YW |
754 | if (r == -ENOENT) |
755 | return 0; | |
756 | if (r < 0) | |
757 | return log_device_error_errno(dev, r, "Failed to get devnum: %m"); | |
758 | ||
759 | /* remove/update possible left-over symlinks from old database entry */ | |
480ecb7d YW |
760 | if (event->dev_db_clone) |
761 | (void) udev_node_update_old_links(dev, event->dev_db_clone); | |
e52eaf56 | 762 | |
25de7aa7 | 763 | if (!uid_is_valid(event->uid)) { |
e52eaf56 | 764 | r = device_get_devnode_uid(dev, &event->uid); |
25de7aa7 YW |
765 | if (r == -ENOENT) |
766 | event->uid = 0; | |
767 | else if (r < 0) | |
e52eaf56 YW |
768 | return log_device_error_errno(dev, r, "Failed to get devnode UID: %m"); |
769 | } | |
770 | ||
25de7aa7 | 771 | if (!gid_is_valid(event->gid)) { |
e52eaf56 | 772 | r = device_get_devnode_gid(dev, &event->gid); |
25de7aa7 YW |
773 | if (r == -ENOENT) |
774 | event->gid = 0; | |
775 | else if (r < 0) | |
e52eaf56 YW |
776 | return log_device_error_errno(dev, r, "Failed to get devnode GID: %m"); |
777 | } | |
778 | ||
25de7aa7 | 779 | if (event->mode == MODE_INVALID) { |
e52eaf56 YW |
780 | r = device_get_devnode_mode(dev, &event->mode); |
781 | if (r < 0 && r != -ENOENT) | |
782 | return log_device_error_errno(dev, r, "Failed to get devnode mode: %m"); | |
783 | if (r == -ENOENT) { | |
784 | if (event->gid > 0) | |
785 | /* default 0660 if a group is assigned */ | |
786 | event->mode = 0660; | |
787 | else | |
788 | /* default 0600 */ | |
789 | event->mode = 0600; | |
790 | } | |
791 | } | |
792 | ||
25de7aa7 YW |
793 | apply = device_for_action(dev, DEVICE_ACTION_ADD) || |
794 | uid_is_valid(event->uid) || | |
795 | gid_is_valid(event->gid) || | |
796 | event->mode != MODE_INVALID; | |
e52eaf56 YW |
797 | return udev_node_add(dev, apply, event->mode, event->uid, event->gid, event->seclabel_list); |
798 | } | |
799 | ||
eb1f9e30 | 800 | static void event_execute_rules_on_remove( |
2e088715 | 801 | UdevEvent *event, |
66f737b4 | 802 | usec_t timeout_usec, |
eb1f9e30 | 803 | Hashmap *properties_list, |
9a07157d | 804 | UdevRules *rules) { |
912541b0 | 805 | |
cf28ad46 | 806 | sd_device *dev = event->dev; |
eb1f9e30 | 807 | int r; |
912541b0 | 808 | |
ebcc52fa | 809 | r = device_read_db_internal(dev, true); |
eb1f9e30 YW |
810 | if (r < 0) |
811 | log_device_debug_errno(dev, r, "Failed to read database under /run/udev/data/: %m"); | |
107f2e25 | 812 | |
eb1f9e30 YW |
813 | r = device_tag_index(dev, NULL, false); |
814 | if (r < 0) | |
815 | log_device_debug_errno(dev, r, "Failed to remove corresponding tag files under /run/udev/tag/, ignoring: %m"); | |
912541b0 | 816 | |
eb1f9e30 YW |
817 | r = device_delete_db(dev); |
818 | if (r < 0) | |
819 | log_device_debug_errno(dev, r, "Failed to delete database under /run/udev/data/, ignoring: %m"); | |
912541b0 | 820 | |
d4a95a95 | 821 | if (sd_device_get_devnum(dev, NULL) >= 0) |
eb1f9e30 YW |
822 | (void) udev_watch_end(dev); |
823 | ||
66f737b4 | 824 | (void) udev_rules_apply_to_event(rules, event, timeout_usec, properties_list); |
eb1f9e30 | 825 | |
d4a95a95 | 826 | if (sd_device_get_devnum(dev, NULL) >= 0) |
eb1f9e30 YW |
827 | (void) udev_node_remove(dev); |
828 | } | |
829 | ||
a4055a60 YW |
830 | static int udev_event_on_move(UdevEvent *event) { |
831 | sd_device *dev = event->dev; | |
832 | int r; | |
833 | ||
834 | if (event->dev_db_clone && | |
835 | sd_device_get_devnum(dev, NULL) < 0) { | |
836 | r = device_copy_properties(dev, event->dev_db_clone); | |
837 | if (r < 0) | |
838 | log_device_debug_errno(dev, r, "Failed to copy properties from cloned sd_device object, ignoring: %m"); | |
839 | } | |
840 | ||
841 | /* Drop previously added property */ | |
842 | r = device_add_property(dev, "ID_RENAMING", NULL); | |
843 | if (r < 0) | |
844 | return log_device_debug_errno(dev, r, "Failed to remove 'ID_RENAMING' property, ignoring: %m"); | |
845 | ||
846 | return 0; | |
847 | } | |
848 | ||
2e088715 | 849 | int udev_event_execute_rules(UdevEvent *event, |
66f737b4 | 850 | usec_t timeout_usec, |
eb1f9e30 | 851 | Hashmap *properties_list, |
9a07157d | 852 | UdevRules *rules) { |
d4d690fa YW |
853 | const char *subsystem; |
854 | DeviceAction action; | |
6d0fdf45 | 855 | sd_device *dev; |
eb1f9e30 YW |
856 | int r; |
857 | ||
858 | assert(event); | |
859 | assert(rules); | |
860 | ||
6d0fdf45 YW |
861 | dev = event->dev; |
862 | ||
eb1f9e30 YW |
863 | r = sd_device_get_subsystem(dev, &subsystem); |
864 | if (r < 0) | |
865 | return log_device_error_errno(dev, r, "Failed to get subsystem: %m"); | |
866 | ||
d4d690fa | 867 | r = device_get_action(dev, &action); |
eb1f9e30 | 868 | if (r < 0) |
d4d690fa | 869 | return log_device_error_errno(dev, r, "Failed to get ACTION: %m"); |
b081b27e | 870 | |
d4d690fa | 871 | if (action == DEVICE_ACTION_REMOVE) { |
66f737b4 | 872 | event_execute_rules_on_remove(event, timeout_usec, properties_list, rules); |
eb1f9e30 YW |
873 | return 0; |
874 | } | |
912541b0 | 875 | |
480ecb7d | 876 | r = device_clone_with_db(dev, &event->dev_db_clone); |
eb1f9e30 YW |
877 | if (r < 0) |
878 | log_device_debug_errno(dev, r, "Failed to clone sd_device object, ignoring: %m"); | |
912541b0 | 879 | |
a4055a60 YW |
880 | if (event->dev_db_clone && sd_device_get_devnum(dev, NULL) >= 0) |
881 | /* Disable watch during event processing. */ | |
882 | (void) udev_watch_end(event->dev_db_clone); | |
912541b0 | 883 | |
d4d690fa | 884 | if (action == DEVICE_ACTION_MOVE) |
a4055a60 | 885 | (void) udev_event_on_move(event); |
eb1f9e30 | 886 | |
66f737b4 | 887 | (void) udev_rules_apply_to_event(rules, event, timeout_usec, properties_list); |
eb1f9e30 YW |
888 | |
889 | (void) rename_netif(event); | |
890 | (void) update_devnode(event); | |
891 | ||
892 | /* preserve old, or get new initialization timestamp */ | |
480ecb7d | 893 | r = device_ensure_usec_initialized(dev, event->dev_db_clone); |
eb1f9e30 YW |
894 | if (r < 0) |
895 | log_device_debug_errno(dev, r, "Failed to set initialization timestamp, ignoring: %m"); | |
896 | ||
897 | /* (re)write database file */ | |
480ecb7d | 898 | r = device_tag_index(dev, event->dev_db_clone, true); |
eb1f9e30 YW |
899 | if (r < 0) |
900 | log_device_debug_errno(dev, r, "Failed to update tags under /run/udev/tag/, ignoring: %m"); | |
901 | ||
902 | r = device_update_db(dev); | |
903 | if (r < 0) | |
904 | log_device_debug_errno(dev, r, "Failed to update database under /run/udev/data/, ignoring: %m"); | |
905 | ||
906 | device_set_is_initialized(dev); | |
907 | ||
480ecb7d | 908 | event->dev_db_clone = sd_device_unref(event->dev_db_clone); |
eb1f9e30 YW |
909 | |
910 | return 0; | |
d46f37fd | 911 | } |
2d73813e | 912 | |
2e088715 | 913 | void udev_event_execute_run(UdevEvent *event, usec_t timeout_usec) { |
29448498 YW |
914 | const char *cmd; |
915 | void *val; | |
916 | Iterator i; | |
25de7aa7 | 917 | int r; |
912541b0 | 918 | |
39a15c8a | 919 | ORDERED_HASHMAP_FOREACH_KEY(val, cmd, event->run_list, i) { |
25de7aa7 | 920 | UdevBuiltinCommand builtin_cmd = PTR_TO_UDEV_BUILTIN_CMD(val); |
bbf35206 | 921 | char command[UTIL_PATH_SIZE]; |
83cd6b75 | 922 | |
25de7aa7 | 923 | (void) udev_event_apply_format(event, cmd, command, sizeof(command), false); |
912541b0 | 924 | |
25de7aa7 YW |
925 | if (builtin_cmd != _UDEV_BUILTIN_INVALID) { |
926 | log_device_debug(event->dev, "Running built-in command \"%s\"", command); | |
927 | r = udev_builtin_run(event->dev, builtin_cmd, command, false); | |
928 | if (r < 0) | |
929 | log_device_debug_errno(event->dev, r, "Failed to run built-in command \"%s\", ignoring: %m", command); | |
930 | } else { | |
6b92f429 | 931 | if (event->exec_delay_usec > 0) { |
25de7aa7 YW |
932 | char buf[FORMAT_TIMESPAN_MAX]; |
933 | ||
934 | log_device_debug(event->dev, "Delaying execution of \"%s\" for %s.", | |
935 | command, format_timespan(buf, sizeof(buf), event->exec_delay_usec, USEC_PER_SEC)); | |
6b92f429 | 936 | (void) usleep(event->exec_delay_usec); |
912541b0 KS |
937 | } |
938 | ||
25de7aa7 YW |
939 | log_device_debug(event->dev, "Running command \"%s\"", command); |
940 | r = udev_event_spawn(event, timeout_usec, false, command, NULL, 0); | |
941 | if (r > 0) /* returned value is positive when program fails */ | |
942 | log_device_debug(event->dev, "Command \"%s\" returned %d (error), ignoring.", command, r); | |
912541b0 KS |
943 | } |
944 | } | |
2d73813e | 945 | } |