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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" |
ce4f94b8 | 23 | #include "parse-util.h" |
feaa6db7 | 24 | #include "path-util.h" |
8128f229 | 25 | #include "process-util.h" |
595225af | 26 | #include "rlimit-util.h" |
24882e06 | 27 | #include "signal-util.h" |
4cade7a1 | 28 | #include "stdio-util.h" |
07630cea | 29 | #include "string-util.h" |
5ea78a39 YW |
30 | #include "strv.h" |
31 | #include "strxcpyx.h" | |
07a26e42 | 32 | #include "udev-builtin.h" |
25de7aa7 | 33 | #include "udev-event.h" |
a2554ace | 34 | #include "udev-node.h" |
d4d690fa | 35 | #include "udev-util.h" |
70068602 | 36 | #include "udev-watch.h" |
25de7aa7 | 37 | #include "user-util.h" |
8128f229 TG |
38 | |
39 | typedef struct Spawn { | |
40 | const char *cmd; | |
41 | pid_t pid; | |
e81c3a4c YW |
42 | usec_t timeout_warn_usec; |
43 | usec_t timeout_usec; | |
44 | usec_t event_birth_usec; | |
53318514 | 45 | bool accept_failure; |
e81c3a4c YW |
46 | int fd_stdout; |
47 | int fd_stderr; | |
48 | char *result; | |
49 | size_t result_size; | |
50 | size_t result_len; | |
8128f229 | 51 | } Spawn; |
d46f37fd | 52 | |
2e088715 ZJS |
53 | UdevEvent *udev_event_new(sd_device *dev, usec_t exec_delay_usec, sd_netlink *rtnl) { |
54 | UdevEvent *event; | |
912541b0 | 55 | |
89665d09 YW |
56 | assert(dev); |
57 | ||
2e088715 | 58 | event = new(UdevEvent, 1); |
89665d09 | 59 | if (!event) |
912541b0 | 60 | return NULL; |
89665d09 | 61 | |
2e088715 | 62 | *event = (UdevEvent) { |
cf28ad46 | 63 | .dev = sd_device_ref(dev), |
89665d09 | 64 | .birth_usec = now(CLOCK_MONOTONIC), |
6b92f429 | 65 | .exec_delay_usec = exec_delay_usec, |
e0bb2ff9 | 66 | .rtnl = sd_netlink_ref(rtnl), |
25de7aa7 YW |
67 | .uid = UID_INVALID, |
68 | .gid = GID_INVALID, | |
69 | .mode = MODE_INVALID, | |
89665d09 YW |
70 | }; |
71 | ||
912541b0 | 72 | return event; |
aa8734ff KS |
73 | } |
74 | ||
2e088715 | 75 | UdevEvent *udev_event_free(UdevEvent *event) { |
c1118ceb YW |
76 | if (!event) |
77 | return NULL; | |
78 | ||
cf28ad46 | 79 | sd_device_unref(event->dev); |
480ecb7d | 80 | sd_device_unref(event->dev_db_clone); |
1c4baffc | 81 | sd_netlink_unref(event->rtnl); |
39a15c8a YW |
82 | ordered_hashmap_free_free_key(event->run_list); |
83 | ordered_hashmap_free_free_free(event->seclabel_list); | |
912541b0 KS |
84 | free(event->program_result); |
85 | free(event->name); | |
c1118ceb YW |
86 | |
87 | return mfree(event); | |
aa8734ff KS |
88 | } |
89 | ||
7e9c23dd YW |
90 | typedef enum { |
91 | FORMAT_SUBST_DEVNODE, | |
92 | FORMAT_SUBST_ATTR, | |
93 | FORMAT_SUBST_ENV, | |
94 | FORMAT_SUBST_KERNEL, | |
95 | FORMAT_SUBST_KERNEL_NUMBER, | |
96 | FORMAT_SUBST_DRIVER, | |
97 | FORMAT_SUBST_DEVPATH, | |
98 | FORMAT_SUBST_ID, | |
99 | FORMAT_SUBST_MAJOR, | |
100 | FORMAT_SUBST_MINOR, | |
101 | FORMAT_SUBST_RESULT, | |
102 | FORMAT_SUBST_PARENT, | |
103 | FORMAT_SUBST_NAME, | |
104 | FORMAT_SUBST_LINKS, | |
105 | FORMAT_SUBST_ROOT, | |
106 | FORMAT_SUBST_SYS, | |
107 | _FORMAT_SUBST_TYPE_MAX, | |
108 | _FORMAT_SUBST_TYPE_INVALID = -1 | |
109 | } FormatSubstitutionType; | |
0d53705b | 110 | |
9204d802 YW |
111 | struct subst_map_entry { |
112 | const char *name; | |
113 | const char fmt; | |
7e9c23dd | 114 | FormatSubstitutionType type; |
9204d802 YW |
115 | }; |
116 | ||
117 | static const struct subst_map_entry map[] = { | |
7e9c23dd | 118 | { .name = "devnode", .fmt = 'N', .type = FORMAT_SUBST_DEVNODE }, |
3c209d60 | 119 | { .name = "tempnode", .fmt = 'N', .type = FORMAT_SUBST_DEVNODE }, /* deprecated */ |
7e9c23dd | 120 | { .name = "attr", .fmt = 's', .type = FORMAT_SUBST_ATTR }, |
3c209d60 | 121 | { .name = "sysfs", .fmt = 's', .type = FORMAT_SUBST_ATTR }, /* deprecated */ |
7e9c23dd YW |
122 | { .name = "env", .fmt = 'E', .type = FORMAT_SUBST_ENV }, |
123 | { .name = "kernel", .fmt = 'k', .type = FORMAT_SUBST_KERNEL }, | |
124 | { .name = "number", .fmt = 'n', .type = FORMAT_SUBST_KERNEL_NUMBER }, | |
125 | { .name = "driver", .fmt = 'd', .type = FORMAT_SUBST_DRIVER }, | |
126 | { .name = "devpath", .fmt = 'p', .type = FORMAT_SUBST_DEVPATH }, | |
127 | { .name = "id", .fmt = 'b', .type = FORMAT_SUBST_ID }, | |
128 | { .name = "major", .fmt = 'M', .type = FORMAT_SUBST_MAJOR }, | |
129 | { .name = "minor", .fmt = 'm', .type = FORMAT_SUBST_MINOR }, | |
130 | { .name = "result", .fmt = 'c', .type = FORMAT_SUBST_RESULT }, | |
131 | { .name = "parent", .fmt = 'P', .type = FORMAT_SUBST_PARENT }, | |
132 | { .name = "name", .fmt = 'D', .type = FORMAT_SUBST_NAME }, | |
133 | { .name = "links", .fmt = 'L', .type = FORMAT_SUBST_LINKS }, | |
134 | { .name = "root", .fmt = 'r', .type = FORMAT_SUBST_ROOT }, | |
135 | { .name = "sys", .fmt = 'S', .type = FORMAT_SUBST_SYS }, | |
9204d802 YW |
136 | }; |
137 | ||
13cd553f YW |
138 | static const char *format_type_to_string(FormatSubstitutionType t) { |
139 | for (size_t i = 0; i < ELEMENTSOF(map); i++) | |
140 | if (map[i].type == t) | |
141 | return map[i].name; | |
142 | return NULL; | |
143 | } | |
144 | ||
145 | static char format_type_to_char(FormatSubstitutionType t) { | |
146 | for (size_t i = 0; i < ELEMENTSOF(map); i++) | |
147 | if (map[i].type == t) | |
148 | return map[i].fmt; | |
149 | return '\0'; | |
150 | } | |
151 | ||
d7aee41d | 152 | static int get_subst_type(const char **str, bool strict, FormatSubstitutionType *ret_type, char ret_attr[static UTIL_PATH_SIZE]) { |
13cd553f YW |
153 | const char *p = *str, *q = NULL; |
154 | size_t i; | |
155 | ||
156 | assert(str); | |
157 | assert(*str); | |
158 | assert(ret_type); | |
159 | ||
1824300a | 160 | if (*p == '$') { |
13cd553f | 161 | p++; |
1824300a | 162 | if (*p == '$') { |
13cd553f YW |
163 | *str = p; |
164 | return 0; | |
165 | } | |
166 | for (i = 0; i < ELEMENTSOF(map); i++) | |
167 | if ((q = startswith(p, map[i].name))) | |
168 | break; | |
1824300a | 169 | } else if (*p == '%') { |
13cd553f | 170 | p++; |
1824300a | 171 | if (*p == '%') { |
13cd553f YW |
172 | *str = p; |
173 | return 0; | |
174 | } | |
175 | ||
176 | for (i = 0; i < ELEMENTSOF(map); i++) | |
1824300a | 177 | if (*p == map[i].fmt) { |
13cd553f YW |
178 | q = p + 1; |
179 | break; | |
180 | } | |
d7aee41d | 181 | } else |
13cd553f | 182 | return 0; |
d7aee41d YW |
183 | if (!q) |
184 | /* When 'strict' flag is set, then '$' and '%' must be escaped. */ | |
185 | return strict ? -EINVAL : 0; | |
13cd553f | 186 | |
1824300a | 187 | if (*q == '{') { |
13cd553f YW |
188 | const char *start, *end; |
189 | size_t len; | |
190 | ||
191 | start = q + 1; | |
192 | end = strchr(start, '}'); | |
193 | if (!end) | |
194 | return -EINVAL; | |
195 | ||
196 | len = end - start; | |
197 | if (len == 0 || len >= UTIL_PATH_SIZE) | |
198 | return -EINVAL; | |
199 | ||
200 | strnscpy(ret_attr, UTIL_PATH_SIZE, start, len); | |
201 | q = end + 1; | |
202 | } else | |
1824300a | 203 | *ret_attr = '\0'; |
13cd553f YW |
204 | |
205 | *str = q; | |
206 | *ret_type = map[i].type; | |
207 | return 1; | |
208 | } | |
209 | ||
ce4f94b8 YW |
210 | static int safe_atou_optional_plus(const char *s, unsigned *ret) { |
211 | const char *p; | |
212 | int r; | |
213 | ||
214 | assert(s); | |
215 | assert(ret); | |
216 | ||
217 | /* Returns 1 if plus, 0 if no plus, negative on error */ | |
218 | ||
219 | p = endswith(s, "+"); | |
220 | if (p) | |
221 | s = strndupa(s, p - s); | |
222 | ||
223 | r = safe_atou(s, ret); | |
224 | if (r < 0) | |
225 | return r; | |
226 | ||
227 | return !!p; | |
228 | } | |
229 | ||
ef315ada YW |
230 | static ssize_t udev_event_subst_format( |
231 | UdevEvent *event, | |
232 | FormatSubstitutionType type, | |
233 | const char *attr, | |
234 | char *dest, | |
235 | size_t l) { | |
cf28ad46 | 236 | sd_device *parent, *dev = event->dev; |
4cade7a1 | 237 | const char *val = NULL; |
be452683 | 238 | char *s = dest; |
4cade7a1 | 239 | int r; |
0d53705b | 240 | |
ef315ada | 241 | switch (type) { |
7e9c23dd | 242 | case FORMAT_SUBST_DEVPATH: |
4cade7a1 YW |
243 | r = sd_device_get_devpath(dev, &val); |
244 | if (r < 0) | |
245 | return r; | |
246 | l = strpcpy(&s, l, val); | |
0d53705b | 247 | break; |
7e9c23dd | 248 | case FORMAT_SUBST_KERNEL: |
4cade7a1 YW |
249 | r = sd_device_get_sysname(dev, &val); |
250 | if (r < 0) | |
251 | return r; | |
252 | l = strpcpy(&s, l, val); | |
0d53705b | 253 | break; |
7e9c23dd | 254 | case FORMAT_SUBST_KERNEL_NUMBER: |
4cade7a1 | 255 | r = sd_device_get_sysnum(dev, &val); |
380d1901 YW |
256 | if (r == -ENOENT) |
257 | goto null_terminate; | |
4cade7a1 | 258 | if (r < 0) |
380d1901 | 259 | return r; |
4cade7a1 | 260 | l = strpcpy(&s, l, val); |
0d53705b | 261 | break; |
7e9c23dd | 262 | case FORMAT_SUBST_ID: |
4cade7a1 | 263 | if (!event->dev_parent) |
380d1901 | 264 | goto null_terminate; |
f3d241fe | 265 | r = sd_device_get_sysname(event->dev_parent, &val); |
4cade7a1 YW |
266 | if (r < 0) |
267 | return r; | |
268 | l = strpcpy(&s, l, val); | |
0d53705b | 269 | break; |
7e9c23dd | 270 | case FORMAT_SUBST_DRIVER: |
4cade7a1 | 271 | if (!event->dev_parent) |
380d1901 | 272 | goto null_terminate; |
f3d241fe | 273 | r = sd_device_get_driver(event->dev_parent, &val); |
380d1901 YW |
274 | if (r == -ENOENT) |
275 | goto null_terminate; | |
4cade7a1 | 276 | if (r < 0) |
380d1901 | 277 | return r; |
4cade7a1 | 278 | l = strpcpy(&s, l, val); |
0d53705b | 279 | break; |
7e9c23dd YW |
280 | case FORMAT_SUBST_MAJOR: |
281 | case FORMAT_SUBST_MINOR: { | |
1b65f1eb | 282 | dev_t devnum; |
0d53705b | 283 | |
4cade7a1 YW |
284 | r = sd_device_get_devnum(dev, &devnum); |
285 | if (r < 0 && r != -ENOENT) | |
286 | return r; | |
1b65f1eb | 287 | l = strpcpyf(&s, l, "%u", r < 0 ? 0 : type == FORMAT_SUBST_MAJOR ? major(devnum) : minor(devnum)); |
0d53705b DS |
288 | break; |
289 | } | |
7e9c23dd | 290 | case FORMAT_SUBST_RESULT: { |
ce4f94b8 YW |
291 | unsigned index = 0; /* 0 means whole string */ |
292 | bool has_plus; | |
0d53705b | 293 | |
4cade7a1 | 294 | if (!event->program_result) |
380d1901 | 295 | goto null_terminate; |
4cade7a1 | 296 | |
ce4f94b8 YW |
297 | if (!isempty(attr)) { |
298 | r = safe_atou_optional_plus(attr, &index); | |
299 | if (r < 0) | |
300 | return r; | |
301 | ||
302 | has_plus = r; | |
303 | } | |
304 | ||
305 | if (index == 0) | |
306 | l = strpcpy(&s, l, event->program_result); | |
307 | else { | |
308 | const char *start, *p; | |
309 | unsigned i; | |
310 | ||
311 | p = skip_leading_chars(event->program_result, NULL); | |
312 | ||
313 | for (i = 1; i < index; i++) { | |
1824300a | 314 | while (*p && !strchr(WHITESPACE, *p)) |
ce4f94b8 YW |
315 | p++; |
316 | p = skip_leading_chars(p, NULL); | |
317 | if (*p == '\0') | |
0d53705b DS |
318 | break; |
319 | } | |
ce4f94b8 YW |
320 | if (i != index) { |
321 | log_device_debug(dev, "requested part of result string not found"); | |
322 | goto null_terminate; | |
0d53705b | 323 | } |
ce4f94b8 YW |
324 | |
325 | start = p; | |
326 | /* %c{2+} copies the whole string from the second part on */ | |
327 | if (has_plus) | |
328 | l = strpcpy(&s, l, start); | |
329 | else { | |
1824300a | 330 | while (*p && !strchr(WHITESPACE, *p)) |
ce4f94b8 YW |
331 | p++; |
332 | l = strnpcpy(&s, l, start, p - start); | |
0d53705b | 333 | } |
ce4f94b8 | 334 | } |
0d53705b DS |
335 | break; |
336 | } | |
7e9c23dd | 337 | case FORMAT_SUBST_ATTR: { |
0d53705b | 338 | char vbuf[UTIL_NAME_SIZE]; |
0d53705b DS |
339 | int count; |
340 | ||
13cd553f | 341 | if (isempty(attr)) |
4cade7a1 | 342 | return -EINVAL; |
0d53705b DS |
343 | |
344 | /* try to read the value specified by "[dmi/id]product_name" */ | |
3839535a | 345 | if (util_resolve_subsys_kernel(attr, vbuf, sizeof(vbuf), true) == 0) |
4cade7a1 | 346 | val = vbuf; |
0d53705b DS |
347 | |
348 | /* try to read the attribute the device */ | |
4cade7a1 YW |
349 | if (!val) |
350 | (void) sd_device_get_sysattr_value(dev, attr, &val); | |
0d53705b DS |
351 | |
352 | /* try to read the attribute of the parent device, other matches have selected */ | |
f3d241fe YW |
353 | if (!val && event->dev_parent && event->dev_parent != dev) |
354 | (void) sd_device_get_sysattr_value(event->dev_parent, attr, &val); | |
0d53705b | 355 | |
4cade7a1 | 356 | if (!val) |
380d1901 | 357 | goto null_terminate; |
0d53705b DS |
358 | |
359 | /* strip trailing whitespace, and replace unwanted characters */ | |
4cade7a1 YW |
360 | if (val != vbuf) |
361 | strscpy(vbuf, sizeof(vbuf), val); | |
72801533 | 362 | delete_trailing_chars(vbuf, NULL); |
0d53705b DS |
363 | count = util_replace_chars(vbuf, UDEV_ALLOWED_CHARS_INPUT); |
364 | if (count > 0) | |
4cade7a1 | 365 | log_device_debug(dev, "%i character(s) replaced", count); |
0d53705b DS |
366 | l = strpcpy(&s, l, vbuf); |
367 | break; | |
368 | } | |
7e9c23dd | 369 | case FORMAT_SUBST_PARENT: |
4cade7a1 | 370 | r = sd_device_get_parent(dev, &parent); |
380d1901 YW |
371 | if (r == -ENODEV) |
372 | goto null_terminate; | |
4cade7a1 | 373 | if (r < 0) |
380d1901 | 374 | return r; |
4cade7a1 | 375 | r = sd_device_get_devname(parent, &val); |
380d1901 YW |
376 | if (r == -ENOENT) |
377 | goto null_terminate; | |
4cade7a1 | 378 | if (r < 0) |
380d1901 | 379 | return r; |
4cade7a1 | 380 | l = strpcpy(&s, l, val + STRLEN("/dev/")); |
0d53705b | 381 | break; |
7e9c23dd | 382 | case FORMAT_SUBST_DEVNODE: |
4cade7a1 | 383 | r = sd_device_get_devname(dev, &val); |
380d1901 YW |
384 | if (r == -ENOENT) |
385 | goto null_terminate; | |
4cade7a1 | 386 | if (r < 0) |
380d1901 | 387 | return r; |
4cade7a1 | 388 | l = strpcpy(&s, l, val); |
0d53705b | 389 | break; |
7e9c23dd | 390 | case FORMAT_SUBST_NAME: |
4cade7a1 | 391 | if (event->name) |
0d53705b | 392 | l = strpcpy(&s, l, event->name); |
4cade7a1 YW |
393 | else if (sd_device_get_devname(dev, &val) >= 0) |
394 | l = strpcpy(&s, l, val + STRLEN("/dev/")); | |
395 | else { | |
396 | r = sd_device_get_sysname(dev, &val); | |
397 | if (r < 0) | |
398 | return r; | |
399 | l = strpcpy(&s, l, val); | |
400 | } | |
0d53705b | 401 | break; |
7e9c23dd | 402 | case FORMAT_SUBST_LINKS: |
4cade7a1 YW |
403 | FOREACH_DEVICE_DEVLINK(dev, val) |
404 | if (s == dest) | |
405 | l = strpcpy(&s, l, val + STRLEN("/dev/")); | |
406 | else | |
407 | l = strpcpyl(&s, l, " ", val + STRLEN("/dev/"), NULL); | |
380d1901 YW |
408 | if (s == dest) |
409 | goto null_terminate; | |
0d53705b | 410 | break; |
7e9c23dd | 411 | case FORMAT_SUBST_ROOT: |
0d53705b DS |
412 | l = strpcpy(&s, l, "/dev"); |
413 | break; | |
7e9c23dd | 414 | case FORMAT_SUBST_SYS: |
0d53705b DS |
415 | l = strpcpy(&s, l, "/sys"); |
416 | break; | |
7e9c23dd | 417 | case FORMAT_SUBST_ENV: |
13cd553f YW |
418 | if (isempty(attr)) |
419 | return -EINVAL; | |
4cade7a1 | 420 | r = sd_device_get_property_value(dev, attr, &val); |
380d1901 YW |
421 | if (r == -ENOENT) |
422 | goto null_terminate; | |
4cade7a1 | 423 | if (r < 0) |
380d1901 | 424 | return r; |
4cade7a1 YW |
425 | l = strpcpy(&s, l, val); |
426 | break; | |
0d53705b | 427 | default: |
9204d802 | 428 | assert_not_reached("Unknown format substitution type"); |
0d53705b DS |
429 | } |
430 | ||
be452683 | 431 | return s - dest; |
380d1901 YW |
432 | |
433 | null_terminate: | |
434 | *s = '\0'; | |
435 | return 0; | |
0d53705b DS |
436 | } |
437 | ||
2e088715 | 438 | ssize_t udev_event_apply_format(UdevEvent *event, |
4cade7a1 YW |
439 | const char *src, char *dest, size_t size, |
440 | bool replace_whitespace) { | |
13cd553f YW |
441 | const char *s = src; |
442 | int r; | |
912541b0 | 443 | |
a368732b YW |
444 | assert(event); |
445 | assert(event->dev); | |
446 | assert(src); | |
447 | assert(dest); | |
448 | assert(size > 0); | |
3b64e4d4 | 449 | |
1824300a | 450 | while (*s) { |
13cd553f YW |
451 | FormatSubstitutionType type; |
452 | char attr[UTIL_PATH_SIZE]; | |
4cade7a1 | 453 | ssize_t subst_len; |
912541b0 | 454 | |
d7aee41d | 455 | r = get_subst_type(&s, false, &type, attr); |
13cd553f YW |
456 | if (r < 0) |
457 | return log_device_warning_errno(event->dev, r, "Invalid format string, ignoring: %s", src); | |
458 | if (r == 0) { | |
459 | if (size < 2) /* need space for this char and the terminating NUL */ | |
460 | break; | |
461 | *dest++ = *s++; | |
462 | size--; | |
4cade7a1 YW |
463 | continue; |
464 | } | |
e20a9171 | 465 | |
13cd553f YW |
466 | subst_len = udev_event_subst_format(event, type, attr, dest, size); |
467 | if (subst_len < 0) | |
468 | return log_device_warning_errno(event->dev, subst_len, | |
469 | "Failed to substitute variable '$%s' or apply format '%%%c', ignoring: %m", | |
470 | format_type_to_string(type), format_type_to_char(type)); | |
471 | ||
7e9c23dd | 472 | /* FORMAT_SUBST_RESULT handles spaces itself */ |
13cd553f | 473 | if (replace_whitespace && type != FORMAT_SUBST_RESULT) |
be452683 | 474 | /* util_replace_whitespace can replace in-place, |
13cd553f YW |
475 | * and does nothing if subst_len == 0 */ |
476 | subst_len = util_replace_whitespace(dest, dest, subst_len); | |
e20a9171 | 477 | |
13cd553f YW |
478 | dest += subst_len; |
479 | size -= subst_len; | |
912541b0 | 480 | } |
065db052 | 481 | |
13cd553f | 482 | assert(size >= 1); |
1824300a | 483 | *dest = '\0'; |
13cd553f | 484 | return size; |
f1128767 KS |
485 | } |
486 | ||
f85cc54c | 487 | int udev_check_format(const char *value, size_t *offset, const char **hint) { |
d7aee41d | 488 | FormatSubstitutionType type; |
f85cc54c | 489 | const char *s = value; |
d7aee41d YW |
490 | char attr[UTIL_PATH_SIZE]; |
491 | int r; | |
492 | ||
1824300a | 493 | while (*s) { |
d7aee41d | 494 | r = get_subst_type(&s, true, &type, attr); |
f85cc54c ZJS |
495 | if (r < 0) { |
496 | if (offset) | |
497 | *offset = s - value; | |
498 | if (hint) | |
499 | *hint = "invalid substitution type"; | |
d7aee41d | 500 | return r; |
f85cc54c | 501 | } else if (r == 0) { |
d7aee41d YW |
502 | s++; |
503 | continue; | |
504 | } | |
505 | ||
f85cc54c ZJS |
506 | if (IN_SET(type, FORMAT_SUBST_ATTR, FORMAT_SUBST_ENV) && isempty(attr)) { |
507 | if (offset) | |
508 | *offset = s - value; | |
509 | if (hint) | |
510 | *hint = "attribute value missing"; | |
d7aee41d | 511 | return -EINVAL; |
f85cc54c | 512 | } |
d7aee41d YW |
513 | |
514 | if (type == FORMAT_SUBST_RESULT && !isempty(attr)) { | |
515 | unsigned i; | |
516 | ||
517 | r = safe_atou_optional_plus(attr, &i); | |
f85cc54c ZJS |
518 | if (r < 0) { |
519 | if (offset) | |
520 | *offset = s - value; | |
521 | if (hint) | |
522 | *hint = "attribute value not a valid number"; | |
d7aee41d | 523 | return r; |
f85cc54c | 524 | } |
d7aee41d YW |
525 | } |
526 | } | |
527 | ||
528 | return 0; | |
529 | } | |
530 | ||
e81c3a4c YW |
531 | static int on_spawn_io(sd_event_source *s, int fd, uint32_t revents, void *userdata) { |
532 | Spawn *spawn = userdata; | |
533 | char buf[4096], *p; | |
534 | size_t size; | |
535 | ssize_t l; | |
912541b0 | 536 | |
e81c3a4c YW |
537 | assert(spawn); |
538 | assert(fd == spawn->fd_stdout || fd == spawn->fd_stderr); | |
539 | assert(!spawn->result || spawn->result_len < spawn->result_size); | |
540 | ||
541 | if (fd == spawn->fd_stdout && spawn->result) { | |
542 | p = spawn->result + spawn->result_len; | |
543 | size = spawn->result_size - spawn->result_len; | |
544 | } else { | |
545 | p = buf; | |
546 | size = sizeof(buf); | |
912541b0 KS |
547 | } |
548 | ||
e81c3a4c YW |
549 | l = read(fd, p, size - 1); |
550 | if (l < 0) { | |
551 | if (errno != EAGAIN) | |
552 | log_error_errno(errno, "Failed to read stdout of '%s': %m", spawn->cmd); | |
912541b0 | 553 | |
e81c3a4c | 554 | return 0; |
912541b0 KS |
555 | } |
556 | ||
e81c3a4c YW |
557 | p[l] = '\0'; |
558 | if (fd == spawn->fd_stdout && spawn->result) | |
559 | spawn->result_len += l; | |
912541b0 | 560 | |
e81c3a4c YW |
561 | /* Log output only if we watch stderr. */ |
562 | if (l > 0 && spawn->fd_stderr >= 0) { | |
563 | _cleanup_strv_free_ char **v = NULL; | |
564 | char **q; | |
912541b0 | 565 | |
e81c3a4c YW |
566 | v = strv_split_newlines(p); |
567 | if (!v) | |
568 | return 0; | |
912541b0 | 569 | |
e81c3a4c YW |
570 | STRV_FOREACH(q, v) |
571 | log_debug("'%s'(%s) '%s'", spawn->cmd, | |
572 | fd == spawn->fd_stdout ? "out" : "err", *q); | |
912541b0 KS |
573 | } |
574 | ||
e81c3a4c | 575 | return 0; |
2181d30a KS |
576 | } |
577 | ||
8128f229 TG |
578 | static int on_spawn_timeout(sd_event_source *s, uint64_t usec, void *userdata) { |
579 | Spawn *spawn = userdata; | |
4375dab5 | 580 | char timeout[FORMAT_TIMESPAN_MAX]; |
912541b0 | 581 | |
8128f229 | 582 | assert(spawn); |
912541b0 | 583 | |
8128f229 | 584 | kill_and_sigcont(spawn->pid, SIGKILL); |
912541b0 | 585 | |
5ca3dbc9 | 586 | log_error("Spawned process '%s' ["PID_FMT"] timed out after %s, killing", spawn->cmd, spawn->pid, |
4375dab5 | 587 | format_timespan(timeout, sizeof(timeout), spawn->timeout_usec, USEC_PER_SEC)); |
912541b0 | 588 | |
8128f229 TG |
589 | return 1; |
590 | } | |
67117413 | 591 | |
8128f229 TG |
592 | static int on_spawn_timeout_warning(sd_event_source *s, uint64_t usec, void *userdata) { |
593 | Spawn *spawn = userdata; | |
4375dab5 | 594 | char timeout[FORMAT_TIMESPAN_MAX]; |
912541b0 | 595 | |
8128f229 | 596 | assert(spawn); |
67117413 | 597 | |
5ca3dbc9 | 598 | log_warning("Spawned process '%s' ["PID_FMT"] is taking longer than %s to complete", spawn->cmd, spawn->pid, |
4375dab5 | 599 | format_timespan(timeout, sizeof(timeout), spawn->timeout_warn_usec, USEC_PER_SEC)); |
8128f229 TG |
600 | |
601 | return 1; | |
602 | } | |
603 | ||
604 | static int on_spawn_sigchld(sd_event_source *s, const siginfo_t *si, void *userdata) { | |
605 | Spawn *spawn = userdata; | |
a7521142 | 606 | int ret = -EIO; |
8128f229 TG |
607 | |
608 | assert(spawn); | |
609 | ||
610 | switch (si->si_code) { | |
611 | case CLD_EXITED: | |
a7521142 | 612 | if (si->si_status == 0) |
53318514 | 613 | log_debug("Process '%s' succeeded.", spawn->cmd); |
a7521142 ZJS |
614 | else |
615 | log_full(spawn->accept_failure ? LOG_DEBUG : LOG_WARNING, | |
616 | "Process '%s' failed with exit code %i.", spawn->cmd, si->si_status); | |
617 | ret = si->si_status; | |
8128f229 TG |
618 | break; |
619 | case CLD_KILLED: | |
620 | case CLD_DUMPED: | |
a7521142 | 621 | log_error("Process '%s' terminated by signal %s.", spawn->cmd, signal_to_string(si->si_status)); |
8128f229 TG |
622 | break; |
623 | default: | |
53318514 | 624 | log_error("Process '%s' failed due to unknown reason.", spawn->cmd); |
8128f229 | 625 | } |
912541b0 | 626 | |
a7521142 | 627 | sd_event_exit(sd_event_source_get_event(s), ret); |
8128f229 TG |
628 | return 1; |
629 | } | |
630 | ||
e81c3a4c | 631 | static int spawn_wait(Spawn *spawn) { |
4afd3348 | 632 | _cleanup_(sd_event_unrefp) sd_event *e = NULL; |
a7521142 | 633 | int r; |
8128f229 | 634 | |
e81c3a4c YW |
635 | assert(spawn); |
636 | ||
8128f229 TG |
637 | r = sd_event_new(&e); |
638 | if (r < 0) | |
639 | return r; | |
640 | ||
e81c3a4c | 641 | if (spawn->timeout_usec > 0) { |
8128f229 TG |
642 | usec_t usec, age_usec; |
643 | ||
3285baa8 | 644 | usec = now(CLOCK_MONOTONIC); |
e81c3a4c YW |
645 | age_usec = usec - spawn->event_birth_usec; |
646 | if (age_usec < spawn->timeout_usec) { | |
647 | if (spawn->timeout_warn_usec > 0 && | |
648 | spawn->timeout_warn_usec < spawn->timeout_usec && | |
649 | spawn->timeout_warn_usec > age_usec) { | |
650 | spawn->timeout_warn_usec -= age_usec; | |
8128f229 | 651 | |
3285baa8 | 652 | r = sd_event_add_time(e, NULL, CLOCK_MONOTONIC, |
e81c3a4c YW |
653 | usec + spawn->timeout_warn_usec, USEC_PER_SEC, |
654 | on_spawn_timeout_warning, spawn); | |
8128f229 TG |
655 | if (r < 0) |
656 | return r; | |
912541b0 | 657 | } |
8128f229 | 658 | |
e81c3a4c | 659 | spawn->timeout_usec -= age_usec; |
8128f229 | 660 | |
3285baa8 | 661 | r = sd_event_add_time(e, NULL, CLOCK_MONOTONIC, |
e81c3a4c | 662 | usec + spawn->timeout_usec, USEC_PER_SEC, on_spawn_timeout, spawn); |
8128f229 TG |
663 | if (r < 0) |
664 | return r; | |
912541b0 KS |
665 | } |
666 | } | |
8128f229 | 667 | |
adeb26c1 YW |
668 | if (spawn->fd_stdout >= 0) { |
669 | r = sd_event_add_io(e, NULL, spawn->fd_stdout, EPOLLIN, on_spawn_io, spawn); | |
670 | if (r < 0) | |
671 | return r; | |
672 | } | |
e81c3a4c | 673 | |
adeb26c1 YW |
674 | if (spawn->fd_stderr >= 0) { |
675 | r = sd_event_add_io(e, NULL, spawn->fd_stderr, EPOLLIN, on_spawn_io, spawn); | |
676 | if (r < 0) | |
677 | return r; | |
678 | } | |
e81c3a4c YW |
679 | |
680 | r = sd_event_add_child(e, NULL, spawn->pid, WEXITED, on_spawn_sigchld, spawn); | |
8128f229 TG |
681 | if (r < 0) |
682 | return r; | |
683 | ||
a7521142 | 684 | return sd_event_loop(e); |
2181d30a KS |
685 | } |
686 | ||
2e088715 | 687 | int udev_event_spawn(UdevEvent *event, |
dd5eddd2 | 688 | usec_t timeout_usec, |
53318514 | 689 | bool accept_failure, |
bbf35206 | 690 | const char *cmd, |
dd5eddd2 | 691 | char *result, size_t ressize) { |
feaa6db7 YW |
692 | _cleanup_close_pair_ int outpipe[2] = {-1, -1}, errpipe[2] = {-1, -1}; |
693 | _cleanup_strv_free_ char **argv = NULL; | |
947ce772 | 694 | char **envp = NULL; |
e81c3a4c | 695 | Spawn spawn; |
912541b0 | 696 | pid_t pid; |
feaa6db7 | 697 | int r; |
912541b0 | 698 | |
dc8aec36 YW |
699 | assert(event); |
700 | assert(event->dev); | |
e81c3a4c YW |
701 | assert(result || ressize == 0); |
702 | ||
912541b0 | 703 | /* pipes from child to parent */ |
2e48548f | 704 | if (result || log_get_max_level() >= LOG_INFO) |
f71e8ec1 | 705 | if (pipe2(outpipe, O_NONBLOCK|O_CLOEXEC) != 0) |
feaa6db7 | 706 | return log_error_errno(errno, "Failed to create pipe for command '%s': %m", cmd); |
912541b0 | 707 | |
feaa6db7 | 708 | if (log_get_max_level() >= LOG_INFO) |
f71e8ec1 | 709 | if (pipe2(errpipe, O_NONBLOCK|O_CLOEXEC) != 0) |
feaa6db7 YW |
710 | return log_error_errno(errno, "Failed to create pipe for command '%s': %m", cmd); |
711 | ||
712 | argv = strv_split_full(cmd, NULL, SPLIT_QUOTES|SPLIT_RELAX); | |
713 | if (!argv) | |
714 | return log_oom(); | |
715 | ||
baaa35ad ZJS |
716 | if (isempty(argv[0])) |
717 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
718 | "Invalid command '%s'", cmd); | |
dc8aec36 | 719 | |
feaa6db7 YW |
720 | /* allow programs in /usr/lib/udev/ to be called without the path */ |
721 | if (!path_is_absolute(argv[0])) { | |
722 | char *program; | |
723 | ||
62a85ee0 | 724 | program = path_join(UDEVLIBEXECDIR, argv[0]); |
feaa6db7 YW |
725 | if (!program) |
726 | return log_oom(); | |
bbf35206 | 727 | |
feaa6db7 YW |
728 | free_and_replace(argv[0], program); |
729 | } | |
730 | ||
cf28ad46 | 731 | r = device_get_properties_strv(event->dev, &envp); |
947ce772 | 732 | if (r < 0) |
cf28ad46 | 733 | return log_device_error_errno(event->dev, r, "Failed to get device properties"); |
947ce772 | 734 | |
3ad4d482 YW |
735 | log_debug("Starting '%s'", cmd); |
736 | ||
6ce075a2 | 737 | r = safe_fork("(spawn)", FORK_RESET_SIGNALS|FORK_DEATHSIG|FORK_LOG, &pid); |
feaa6db7 YW |
738 | if (r < 0) |
739 | return log_error_errno(r, "Failed to fork() to execute command '%s': %m", cmd); | |
740 | if (r == 0) { | |
84b1ccb9 YW |
741 | if (rearrange_stdio(-1, outpipe[WRITE_END], errpipe[WRITE_END]) < 0) |
742 | _exit(EXIT_FAILURE); | |
912541b0 | 743 | |
84b1ccb9 | 744 | (void) close_all_fds(NULL, 0); |
595225af | 745 | (void) rlimit_nofile_safe(); |
912541b0 | 746 | |
947ce772 | 747 | execve(argv[0], argv, envp); |
84b1ccb9 | 748 | _exit(EXIT_FAILURE); |
bbf35206 | 749 | } |
912541b0 | 750 | |
4c253ed1 LP |
751 | /* parent closed child's ends of pipes */ |
752 | outpipe[WRITE_END] = safe_close(outpipe[WRITE_END]); | |
753 | errpipe[WRITE_END] = safe_close(errpipe[WRITE_END]); | |
912541b0 | 754 | |
e81c3a4c YW |
755 | spawn = (Spawn) { |
756 | .cmd = cmd, | |
757 | .pid = pid, | |
758 | .accept_failure = accept_failure, | |
66f737b4 | 759 | .timeout_warn_usec = udev_warn_timeout(timeout_usec), |
e81c3a4c YW |
760 | .timeout_usec = timeout_usec, |
761 | .event_birth_usec = event->birth_usec, | |
762 | .fd_stdout = outpipe[READ_END], | |
763 | .fd_stderr = errpipe[READ_END], | |
764 | .result = result, | |
765 | .result_size = ressize, | |
766 | }; | |
767 | r = spawn_wait(&spawn); | |
feaa6db7 | 768 | if (r < 0) |
a7521142 | 769 | return log_error_errno(r, "Failed to wait for spawned command '%s': %m", cmd); |
2181d30a | 770 | |
e81c3a4c YW |
771 | if (result) |
772 | result[spawn.result_len] = '\0'; | |
773 | ||
a7521142 | 774 | return r; /* 0 for success, and positive if the program failed */ |
2181d30a KS |
775 | } |
776 | ||
2e088715 | 777 | static int rename_netif(UdevEvent *event) { |
cf28ad46 | 778 | sd_device *dev = event->dev; |
d4d690fa | 779 | const char *oldname; |
2740750d YW |
780 | int ifindex, r; |
781 | ||
782 | if (!event->name) | |
783 | return 0; /* No new name is requested. */ | |
784 | ||
785 | r = sd_device_get_sysname(dev, &oldname); | |
786 | if (r < 0) | |
787 | return log_device_error_errno(dev, r, "Failed to get sysname: %m"); | |
788 | ||
789 | if (streq(event->name, oldname)) | |
790 | return 0; /* The interface name is already requested name. */ | |
791 | ||
d4d690fa | 792 | if (!device_for_action(dev, DEVICE_ACTION_ADD)) |
2740750d | 793 | return 0; /* Rename the interface only when it is added. */ |
16d26d55 | 794 | |
2740750d YW |
795 | r = sd_device_get_ifindex(dev, &ifindex); |
796 | if (r == -ENOENT) | |
797 | return 0; /* Device is not a network interface. */ | |
798 | if (r < 0) | |
799 | return log_device_error_errno(dev, r, "Failed to get ifindex: %m"); | |
912541b0 | 800 | |
589384be | 801 | r = rtnl_set_link_name(&event->rtnl, ifindex, event->name); |
2740750d | 802 | if (r < 0) |
589384be YW |
803 | return log_device_error_errno(dev, r, "Failed to rename network interface %i from '%s' to '%s': %m", |
804 | ifindex, oldname, event->name); | |
912541b0 | 805 | |
a4055a60 YW |
806 | /* Set ID_RENAMING boolean property here, and drop it in the corresponding move uevent later. */ |
807 | r = device_add_property(dev, "ID_RENAMING", "1"); | |
808 | if (r < 0) | |
99058cd6 | 809 | return log_device_warning_errno(dev, r, "Failed to add 'ID_RENAMING' property: %m"); |
912541b0 | 810 | |
2740750d | 811 | r = device_rename(dev, event->name); |
f647962d | 812 | if (r < 0) |
99058cd6 | 813 | return log_device_warning_errno(dev, r, "Failed to update properties with new name '%s': %m", event->name); |
16d26d55 | 814 | |
589384be | 815 | log_device_debug(dev, "Network interface %i is renamed from '%s' to '%s'", ifindex, oldname, event->name); |
16d26d55 | 816 | |
2740750d | 817 | return 1; |
d46f37fd KS |
818 | } |
819 | ||
2e088715 | 820 | static int update_devnode(UdevEvent *event) { |
cf28ad46 | 821 | sd_device *dev = event->dev; |
e52eaf56 YW |
822 | int r; |
823 | ||
7af1c780 | 824 | r = sd_device_get_devnum(dev, NULL); |
e52eaf56 YW |
825 | if (r == -ENOENT) |
826 | return 0; | |
827 | if (r < 0) | |
828 | return log_device_error_errno(dev, r, "Failed to get devnum: %m"); | |
829 | ||
830 | /* remove/update possible left-over symlinks from old database entry */ | |
480ecb7d YW |
831 | if (event->dev_db_clone) |
832 | (void) udev_node_update_old_links(dev, event->dev_db_clone); | |
e52eaf56 | 833 | |
25de7aa7 | 834 | if (!uid_is_valid(event->uid)) { |
e52eaf56 | 835 | r = device_get_devnode_uid(dev, &event->uid); |
3708c0f4 | 836 | if (r < 0 && r != -ENOENT) |
e52eaf56 YW |
837 | return log_device_error_errno(dev, r, "Failed to get devnode UID: %m"); |
838 | } | |
839 | ||
25de7aa7 | 840 | if (!gid_is_valid(event->gid)) { |
e52eaf56 | 841 | r = device_get_devnode_gid(dev, &event->gid); |
3708c0f4 | 842 | if (r < 0 && r != -ENOENT) |
e52eaf56 YW |
843 | return log_device_error_errno(dev, r, "Failed to get devnode GID: %m"); |
844 | } | |
845 | ||
25de7aa7 | 846 | if (event->mode == MODE_INVALID) { |
e52eaf56 YW |
847 | r = device_get_devnode_mode(dev, &event->mode); |
848 | if (r < 0 && r != -ENOENT) | |
849 | return log_device_error_errno(dev, r, "Failed to get devnode mode: %m"); | |
e52eaf56 | 850 | } |
3708c0f4 ZJS |
851 | if (event->mode == MODE_INVALID && gid_is_valid(event->gid) && event->gid > 0) |
852 | /* If group is set, but mode is not set, "upgrade" mode for the group. */ | |
853 | event->mode = 0660; | |
854 | ||
855 | bool apply_mac = device_for_action(dev, DEVICE_ACTION_ADD); | |
e52eaf56 | 856 | |
3708c0f4 | 857 | return udev_node_add(dev, apply_mac, event->mode, event->uid, event->gid, event->seclabel_list); |
e52eaf56 YW |
858 | } |
859 | ||
eb1f9e30 | 860 | static void event_execute_rules_on_remove( |
2e088715 | 861 | UdevEvent *event, |
66f737b4 | 862 | usec_t timeout_usec, |
eb1f9e30 | 863 | Hashmap *properties_list, |
9a07157d | 864 | UdevRules *rules) { |
912541b0 | 865 | |
cf28ad46 | 866 | sd_device *dev = event->dev; |
eb1f9e30 | 867 | int r; |
912541b0 | 868 | |
ebcc52fa | 869 | r = device_read_db_internal(dev, true); |
eb1f9e30 YW |
870 | if (r < 0) |
871 | log_device_debug_errno(dev, r, "Failed to read database under /run/udev/data/: %m"); | |
107f2e25 | 872 | |
eb1f9e30 YW |
873 | r = device_tag_index(dev, NULL, false); |
874 | if (r < 0) | |
875 | log_device_debug_errno(dev, r, "Failed to remove corresponding tag files under /run/udev/tag/, ignoring: %m"); | |
912541b0 | 876 | |
eb1f9e30 YW |
877 | r = device_delete_db(dev); |
878 | if (r < 0) | |
879 | log_device_debug_errno(dev, r, "Failed to delete database under /run/udev/data/, ignoring: %m"); | |
912541b0 | 880 | |
d4a95a95 | 881 | if (sd_device_get_devnum(dev, NULL) >= 0) |
eb1f9e30 YW |
882 | (void) udev_watch_end(dev); |
883 | ||
66f737b4 | 884 | (void) udev_rules_apply_to_event(rules, event, timeout_usec, properties_list); |
eb1f9e30 | 885 | |
d4a95a95 | 886 | if (sd_device_get_devnum(dev, NULL) >= 0) |
eb1f9e30 YW |
887 | (void) udev_node_remove(dev); |
888 | } | |
889 | ||
a4055a60 YW |
890 | static int udev_event_on_move(UdevEvent *event) { |
891 | sd_device *dev = event->dev; | |
892 | int r; | |
893 | ||
894 | if (event->dev_db_clone && | |
895 | sd_device_get_devnum(dev, NULL) < 0) { | |
896 | r = device_copy_properties(dev, event->dev_db_clone); | |
897 | if (r < 0) | |
898 | log_device_debug_errno(dev, r, "Failed to copy properties from cloned sd_device object, ignoring: %m"); | |
899 | } | |
900 | ||
901 | /* Drop previously added property */ | |
902 | r = device_add_property(dev, "ID_RENAMING", NULL); | |
903 | if (r < 0) | |
99058cd6 | 904 | return log_device_debug_errno(dev, r, "Failed to remove 'ID_RENAMING' property: %m"); |
a4055a60 YW |
905 | |
906 | return 0; | |
907 | } | |
908 | ||
2e088715 | 909 | int udev_event_execute_rules(UdevEvent *event, |
66f737b4 | 910 | usec_t timeout_usec, |
eb1f9e30 | 911 | Hashmap *properties_list, |
9a07157d | 912 | UdevRules *rules) { |
d4d690fa YW |
913 | const char *subsystem; |
914 | DeviceAction action; | |
6d0fdf45 | 915 | sd_device *dev; |
eb1f9e30 YW |
916 | int r; |
917 | ||
918 | assert(event); | |
919 | assert(rules); | |
920 | ||
6d0fdf45 YW |
921 | dev = event->dev; |
922 | ||
eb1f9e30 YW |
923 | r = sd_device_get_subsystem(dev, &subsystem); |
924 | if (r < 0) | |
925 | return log_device_error_errno(dev, r, "Failed to get subsystem: %m"); | |
926 | ||
d4d690fa | 927 | r = device_get_action(dev, &action); |
eb1f9e30 | 928 | if (r < 0) |
d4d690fa | 929 | return log_device_error_errno(dev, r, "Failed to get ACTION: %m"); |
b081b27e | 930 | |
d4d690fa | 931 | if (action == DEVICE_ACTION_REMOVE) { |
66f737b4 | 932 | event_execute_rules_on_remove(event, timeout_usec, properties_list, rules); |
eb1f9e30 YW |
933 | return 0; |
934 | } | |
912541b0 | 935 | |
480ecb7d | 936 | r = device_clone_with_db(dev, &event->dev_db_clone); |
eb1f9e30 | 937 | if (r < 0) |
99058cd6 | 938 | return log_device_debug_errno(dev, r, "Failed to clone sd_device object: %m"); |
912541b0 | 939 | |
a4055a60 YW |
940 | if (event->dev_db_clone && sd_device_get_devnum(dev, NULL) >= 0) |
941 | /* Disable watch during event processing. */ | |
942 | (void) udev_watch_end(event->dev_db_clone); | |
912541b0 | 943 | |
99058cd6 YW |
944 | if (action == DEVICE_ACTION_MOVE) { |
945 | r = udev_event_on_move(event); | |
946 | if (r < 0) | |
947 | return r; | |
948 | } | |
eb1f9e30 | 949 | |
99058cd6 YW |
950 | r = udev_rules_apply_to_event(rules, event, timeout_usec, properties_list); |
951 | if (r < 0) | |
952 | return log_device_debug_errno(dev, r, "Failed to apply udev rules: %m"); | |
eb1f9e30 | 953 | |
99058cd6 YW |
954 | r = rename_netif(event); |
955 | if (r < 0) | |
956 | return r; | |
957 | ||
958 | r = update_devnode(event); | |
959 | if (r < 0) | |
960 | return r; | |
eb1f9e30 YW |
961 | |
962 | /* preserve old, or get new initialization timestamp */ | |
480ecb7d | 963 | r = device_ensure_usec_initialized(dev, event->dev_db_clone); |
eb1f9e30 | 964 | if (r < 0) |
99058cd6 | 965 | return log_device_debug_errno(dev, r, "Failed to set initialization timestamp: %m"); |
eb1f9e30 YW |
966 | |
967 | /* (re)write database file */ | |
480ecb7d | 968 | r = device_tag_index(dev, event->dev_db_clone, true); |
eb1f9e30 | 969 | if (r < 0) |
99058cd6 | 970 | return log_device_debug_errno(dev, r, "Failed to update tags under /run/udev/tag/: %m"); |
eb1f9e30 YW |
971 | |
972 | r = device_update_db(dev); | |
973 | if (r < 0) | |
99058cd6 | 974 | return log_device_debug_errno(dev, r, "Failed to update database under /run/udev/data/: %m"); |
eb1f9e30 YW |
975 | |
976 | device_set_is_initialized(dev); | |
977 | ||
480ecb7d | 978 | event->dev_db_clone = sd_device_unref(event->dev_db_clone); |
eb1f9e30 YW |
979 | |
980 | return 0; | |
d46f37fd | 981 | } |
2d73813e | 982 | |
2e088715 | 983 | void udev_event_execute_run(UdevEvent *event, usec_t timeout_usec) { |
1448820a | 984 | const char *command; |
29448498 YW |
985 | void *val; |
986 | Iterator i; | |
25de7aa7 | 987 | int r; |
912541b0 | 988 | |
1448820a | 989 | ORDERED_HASHMAP_FOREACH_KEY(val, command, event->run_list, i) { |
25de7aa7 | 990 | UdevBuiltinCommand builtin_cmd = PTR_TO_UDEV_BUILTIN_CMD(val); |
912541b0 | 991 | |
25de7aa7 YW |
992 | if (builtin_cmd != _UDEV_BUILTIN_INVALID) { |
993 | log_device_debug(event->dev, "Running built-in command \"%s\"", command); | |
994 | r = udev_builtin_run(event->dev, builtin_cmd, command, false); | |
995 | if (r < 0) | |
996 | log_device_debug_errno(event->dev, r, "Failed to run built-in command \"%s\", ignoring: %m", command); | |
997 | } else { | |
6b92f429 | 998 | if (event->exec_delay_usec > 0) { |
25de7aa7 YW |
999 | char buf[FORMAT_TIMESPAN_MAX]; |
1000 | ||
1001 | log_device_debug(event->dev, "Delaying execution of \"%s\" for %s.", | |
1002 | command, format_timespan(buf, sizeof(buf), event->exec_delay_usec, USEC_PER_SEC)); | |
6b92f429 | 1003 | (void) usleep(event->exec_delay_usec); |
912541b0 KS |
1004 | } |
1005 | ||
25de7aa7 YW |
1006 | log_device_debug(event->dev, "Running command \"%s\"", command); |
1007 | r = udev_event_spawn(event, timeout_usec, false, command, NULL, 0); | |
1008 | if (r > 0) /* returned value is positive when program fails */ | |
1009 | log_device_debug(event->dev, "Command \"%s\" returned %d (error), ignoring.", command, r); | |
912541b0 KS |
1010 | } |
1011 | } | |
2d73813e | 1012 | } |