6 * Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com>
7 * Copyright (C) 2003-2005 Kay Sievers <kay.sievers@vrfy.org>
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation version 2 of the License.
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
19 * You should have received a copy of the GNU General Public License along
20 * with this program; if not, write to the Free Software Foundation, Inc.,
21 * 675 Mass Ave, Cambridge, MA 02139, USA.
35 #include "libsysfs/sysfs/libsysfs.h"
37 #include "udev_libc_wrapper.h"
39 #include "udev_utils.h"
40 #include "udev_version.h"
42 #include "udev_rules.h"
46 /* compare string with pattern (supports * ? [0-9] [!A-Z]) */
47 static int strcmp_pattern(const char *p, const char *s)
52 return (p[0] != '\0');
63 while ((p[0] != '\0') && (p[0] != ']')) {
66 if ((s[0] >= p[0]) && (s[0] <= p[2]))
70 match = (p[0] == s[0]);
74 while ((p[0] != '\0') && (p[0] != ']'))
77 return strcmp_pattern(p+1, s+1);
83 if (strcmp_pattern(p, s+1))
84 return strcmp_pattern(p+1, s);
92 if ((p[0] == s[0]) || (p[0] == '?'))
93 return strcmp_pattern(p+1, s+1);
99 /* extract possible {attr} and move str behind it */
100 static char *get_format_attribute(char **str)
105 if (*str[0] == '{') {
106 pos = strchr(*str, '}');
108 err("missing closing brace for format");
114 dbg("attribute='%s', str='%s'", attr, *str);
119 /* extract possible format length and move str behind it*/
120 static int get_format_len(char **str)
125 if (isdigit(*str[0])) {
126 num = (int) strtoul(*str, &tail, 10);
129 dbg("format length=%i", num);
132 err("format parsing error '%s'", *str);
138 static int get_key(char **line, char **key, char **value)
147 if (strchr(linepos, '\\')) {
148 dbg("escaped characters are not supported, skip");
152 /* skip whitespace */
153 while (isspace(linepos[0]))
160 if (linepos[0] == '\0')
162 if (isspace(linepos[0]))
164 if (linepos[0] == '=')
172 /* skip whitespace */
173 while (isspace(linepos[0]))
177 if (linepos[0] == '"') {
179 temp = strchr(linepos, '"');
181 dbg("missing closing quote");
184 dbg("value is quoted");
186 } else if (linepos[0] == '\'') {
188 temp = strchr(linepos, '\'');
190 dbg("missing closing quote");
193 dbg("value is quoted");
195 } else if (linepos[0] == '\0') {
196 dbg("value is empty");
199 while (temp[0] && !isspace(temp[0]))
208 static int import_keys_into_env(struct udevice *udev, const char *buf, size_t bufsize)
210 char line[LINE_SIZE];
219 /* loop through the whole buffer */
222 while (cur < bufsize) {
223 count = buf_get_line(buf, bufsize, cur);
228 if (count >= sizeof(line)) {
229 err("line too long, conf line skipped %s, line %d", udev_config_filename, lineno);
233 /* eat the whitespace */
234 while ((count > 0) && isspace(bufline[0])) {
241 /* see if this is a comment */
242 if (bufline[0] == COMMENT_CHARACTER)
245 strlcpy(line, bufline, count+1);
248 if (get_key(&linepos, &variable, &value) == 0) {
249 dbg("import '%s=%s'", variable, value);
250 name_list_key_add(&udev->env_list, variable, value);
251 setenv(variable, value, 1);
258 static int import_file_into_env(struct udevice *udev, const char *filename)
263 if (file_map(filename, &buf, &bufsize) != 0) {
264 err("can't open '%s'", filename);
267 import_keys_into_env(udev, buf, bufsize);
268 file_unmap(buf, bufsize);
273 static int import_program_into_env(struct udevice *udev, const char *program)
278 if (execute_program(program, udev->subsystem, result, sizeof(result), &reslen) != 0)
280 return import_keys_into_env(udev, result, reslen);
283 /* finds the lowest positive N such that <name>N isn't present in the udevdb
284 * if <name> doesn't exist, 0 is returned, N otherwise
286 static int find_free_number(struct udevice *udev, const char *name)
288 char devpath[PATH_SIZE];
289 char filename[PATH_SIZE];
292 strlcpy(filename, name, sizeof(filename));
294 dbg("look for existing node '%s'", filename);
295 if (udev_db_search_name(devpath, sizeof(devpath), filename) != 0) {
296 dbg("free num=%d", num);
302 info("find_free_number gone crazy (num=%d), aborted", num);
305 snprintf(filename, sizeof(filename), "%s%d", name, num);
306 filename[sizeof(filename)-1] = '\0';
310 static int find_sysfs_attribute(struct sysfs_class_device *class_dev, struct sysfs_device *sysfs_device,
311 const char *name, char *value, size_t len)
313 struct sysfs_attribute *tmpattr;
315 dbg("look for device attribute '%s'", name);
317 dbg("look for class attribute '%s/%s'", class_dev->path, name);
318 tmpattr = sysfs_get_classdev_attr(class_dev, name);
323 dbg("look for devices attribute '%s/%s'", sysfs_device->path, name);
324 tmpattr = sysfs_get_device_attr(sysfs_device, name);
331 strlcpy(value, tmpattr->value, len);
332 remove_trailing_char(value, '\n');
334 dbg("found attribute '%s'", tmpattr->path);
338 #define WAIT_LOOP_PER_SECOND 20
339 static int wait_for_sysfs(struct udevice *udev, const char *file, int timeout)
341 char filename[PATH_SIZE];
343 int loop = timeout * WAIT_LOOP_PER_SECOND;
345 snprintf(filename, sizeof(filename), "%s%s/%s", sysfs_path, udev->devpath, file);
346 filename[sizeof(filename)-1] = '\0';
347 dbg("wait %i sec for '%s'", timeout, filename);
350 if (stat(filename, &stats) == 0) {
351 dbg("file appeared after %i loops", (timeout * WAIT_LOOP_PER_SECOND) - loop-1);
354 usleep(1000 * 1000 / WAIT_LOOP_PER_SECOND);
356 dbg("waiting for '%s' failed", filename);
360 static void apply_format(struct udevice *udev, char *string, size_t maxsize,
361 struct sysfs_class_device *class_dev, struct sysfs_device *sysfs_device)
363 char temp[PATH_SIZE];
364 char temp2[PATH_SIZE];
365 char *head, *tail, *pos, *cpos, *attr, *rest;
368 unsigned int next_free_number;
369 struct sysfs_class_device *class_dev_parent;
387 static const struct subst_map {
390 enum subst_type type;
392 { .name = "devpath", .fmt = 'p', .type = SUBST_DEVPATH },
393 { .name = "id", .fmt = 'b', .type = SUBST_ID },
394 { .name = "number", .fmt = 'n', .type = SUBST_KERNEL_NUMBER },
395 { .name = "kernel", .fmt = 'k', .type = SUBST_KERNEL_NAME },
396 { .name = "major", .fmt = 'M', .type = SUBST_MAJOR },
397 { .name = "minor", .fmt = 'm', .type = SUBST_MINOR },
398 { .name = "result", .fmt = 'c', .type = SUBST_RESULT },
399 { .name = "sysfs", .fmt = 's', .type = SUBST_SYSFS },
400 { .name = "enum", .fmt = 'e', .type = SUBST_ENUM },
401 { .name = "parent", .fmt = 'P', .type = SUBST_PARENT },
402 { .name = "tempnode", .fmt = 'N', .type = SUBST_TEMP_NODE },
403 { .name = "root", .fmt = 'r', .type = SUBST_ROOT },
404 { .name = "modalias", .fmt = 'A', .type = SUBST_MODALIAS },
405 { .name = "env", .fmt = 'E', .type = SUBST_ENV },
408 enum subst_type type;
409 const struct subst_map *subst;
414 while (head[0] != '\0') {
415 if (head[0] == '$') {
416 /* substitute named variable */
419 if (head[1] == '$') {
420 strlcpy(temp, head+2, sizeof(temp));
421 strlcpy(head+1, temp, maxsize);
426 for (subst = map; subst->name; subst++) {
427 if (strncasecmp(&head[1], subst->name, strlen(subst->name)) == 0) {
429 tail = head + strlen(subst->name)+1;
430 dbg("will substitute format name '%s'", subst->name);
435 else if (head[0] == '%') {
436 /* substitute format char */
439 if (head[1] == '%') {
440 strlcpy(temp, head+2, sizeof(temp));
441 strlcpy(head+1, temp, maxsize);
447 len = get_format_len(&tail);
448 for (subst = map; subst->name; subst++) {
449 if (tail[0] == subst->fmt) {
452 dbg("will substitute format char '%c'", subst->fmt);
461 attr = get_format_attribute(&tail);
462 strlcpy(temp, tail, sizeof(temp));
463 dbg("format=%i, string='%s', tail='%s', class_dev=%p, sysfs_dev=%p",
464 type ,string, tail, class_dev, sysfs_device);
468 strlcat(string, udev->devpath, maxsize);
469 dbg("substitute devpath '%s'", udev->devpath);
472 strlcat(string, udev->bus_id, maxsize);
473 dbg("substitute bus_id '%s'", udev->bus_id);
475 case SUBST_KERNEL_NAME:
476 strlcat(string, udev->kernel_name, maxsize);
477 dbg("substitute kernel name '%s'", udev->kernel_name);
479 case SUBST_KERNEL_NUMBER:
480 strlcat(string, udev->kernel_number, maxsize);
481 dbg("substitute kernel number '%s'", udev->kernel_number);
484 sprintf(temp2, "%d", major(udev->devt));
485 strlcat(string, temp2, maxsize);
486 dbg("substitute major number '%s'", temp2);
489 sprintf(temp2, "%d", minor(udev->devt));
490 strlcat(string, temp2, maxsize);
491 dbg("substitute minor number '%s'", temp2);
494 if (udev->program_result[0] == '\0')
496 /* get part part of the result string */
499 i = strtoul(attr, &rest, 10);
501 dbg("request part #%d of result string", i);
502 cpos = udev->program_result;
504 while (cpos[0] != '\0' && !isspace(cpos[0]))
506 while (isspace(cpos[0]))
510 err("requested part of result string not found");
513 strlcpy(temp2, cpos, sizeof(temp2));
514 /* %{2+}c copies the whole string from the second part on */
515 if (rest[0] != '+') {
516 cpos = strchr(temp2, ' ');
520 strlcat(string, temp2, maxsize);
521 dbg("substitute part of result string '%s'", temp2);
523 strlcat(string, udev->program_result, maxsize);
524 dbg("substitute result string '%s'", udev->program_result);
529 dbg("missing attribute");
532 if (find_sysfs_attribute(class_dev, sysfs_device, attr, temp2, sizeof(temp2)) != 0) {
533 struct sysfs_device *parent_device;
535 dbg("sysfs attribute '%s' not found, walk up the physical devices", attr);
536 parent_device = sysfs_get_device_parent(sysfs_device);
537 while (parent_device) {
538 dbg("looking at '%s'", parent_device->path);
539 if (find_sysfs_attribute(NULL, parent_device, attr, temp2, sizeof(temp2)) == 0)
541 parent_device = sysfs_get_device_parent(parent_device);
546 /* strip trailing whitespace of sysfs value */
548 while (i > 0 && isspace(temp2[i-1]))
550 replace_untrusted_chars(temp2);
551 strlcat(string, temp2, maxsize);
552 dbg("substitute sysfs value '%s'", temp2);
555 next_free_number = find_free_number(udev, string);
556 if (next_free_number > 0) {
557 sprintf(temp2, "%d", next_free_number);
558 strlcat(string, temp2, maxsize);
564 class_dev_parent = sysfs_get_classdev_parent(class_dev);
565 if (class_dev_parent != NULL) {
566 struct udevice udev_parent;
568 dbg("found parent '%s', get the node name", class_dev_parent->path);
569 udev_init_device(&udev_parent, NULL, NULL, NULL);
570 /* lookup the name in the udev_db with the DEVPATH of the parent */
571 if (udev_db_get_device(&udev_parent, &class_dev_parent->path[strlen(sysfs_path)]) == 0) {
572 strlcat(string, udev_parent.name, maxsize);
573 dbg("substitute parent node name'%s'", udev_parent.name);
575 dbg("parent not found in database");
576 udev_cleanup_device(&udev_parent);
579 case SUBST_TEMP_NODE:
580 if (udev->tmp_node[0] == '\0') {
581 dbg("create temporary device node for callout");
582 snprintf(udev->tmp_node, sizeof(udev->tmp_node), "%s/.tmp-%u-%u",
583 udev_root, major(udev->devt), minor(udev->devt));
584 udev->tmp_node[sizeof(udev->tmp_node)-1] = '\0';
585 udev_make_node(udev, udev->tmp_node, udev->devt, 0600, 0, 0);
587 strlcat(string, udev->tmp_node, maxsize);
588 dbg("substitute temporary device node name '%s'", udev->tmp_node);
591 strlcat(string, udev_root, maxsize);
592 dbg("substitute udev_root '%s'", udev_root);
595 if (find_sysfs_attribute(NULL, sysfs_device, "modalias", temp2, sizeof(temp2)) != 0)
597 strlcat(string, temp2, maxsize);
598 dbg("substitute MODALIAS '%s'", temp2);
602 dbg("missing attribute");
608 strlcat(string, pos, maxsize);
609 dbg("substitute env '%s=%s'", attr, pos);
612 err("unknown substitution type=%i", type);
615 /* possibly truncate to format-char specified length */
618 dbg("truncate to %i chars, subtitution string becomes '%s'", len, head);
620 strlcat(string, temp, maxsize);
624 static char *key_val(struct udev_rule *rule, struct key *key)
626 return rule->buf + key->val_off;
629 static char *key_pair_name(struct udev_rule *rule, struct key_pair *pair)
631 return rule->buf + pair->key_name_off;
634 static int match_key(const char *key_name, struct udev_rule *rule, struct key *key, const char *val)
639 if (key->operation == KEY_OP_UNSET)
642 key_value = rule->buf + key->val_off;
644 dbg("check for %s '%s' <-> '%s'", key_name, key_value, val);
645 match = (strcmp_pattern(key_value, val) == 0);
646 if (match && (key->operation != KEY_OP_NOMATCH)) {
647 dbg("%s is matching (matching value)", key_name);
650 if (!match && (key->operation == KEY_OP_NOMATCH)) {
651 dbg("%s is matching, (non matching value)", key_name);
655 dbg("%s is not matching", key_name);
659 static int match_rule(struct udevice *udev, struct udev_rule *rule,
660 struct sysfs_class_device *class_dev, struct sysfs_device *sysfs_device)
662 struct sysfs_device *parent_device = sysfs_device;
664 if (match_key("ACTION", rule, &rule->action, udev->action))
667 if (match_key("KERNEL", rule, &rule->kernel_name, udev->kernel_name))
670 if (match_key("SUBSYSTEM", rule, &rule->subsystem, udev->subsystem))
673 if (match_key("DEVPATH", rule, &rule->devpath, udev->devpath))
676 if (rule->modalias.operation != KEY_OP_UNSET) {
677 char value[NAME_SIZE];
679 if (find_sysfs_attribute(NULL, sysfs_device, "modalias", value, sizeof(value)) != 0) {
680 dbg("MODALIAS value not found");
683 if (match_key("MODALIAS", rule, &rule->modalias, value))
687 if (rule->env.count) {
690 dbg("check %i ENV keys", rule->env.count);
691 for (i = 0; i < rule->env.count; i++) {
692 struct key_pair *pair = &rule->env.keys[i];
693 const char *key_name = key_pair_name(rule, pair);
694 const char *value = getenv(key_name);
697 dbg("ENV{'%s'} is not found", key_name);
700 if (match_key("ENV", rule, &pair->key, value))
703 dbg("all %i ENV keys matched", rule->env.count);
706 if (rule->wait_for_sysfs.operation != KEY_OP_UNSET) {
709 match = (wait_for_sysfs(udev, key_val(rule, &rule->wait_for_sysfs), 3) == 0);
710 if (match && (rule->wait_for_sysfs.operation != KEY_OP_NOMATCH)) {
711 dbg("WAIT_FOR_SYSFS is matching (matching value)");
714 if (!match && (rule->wait_for_sysfs.operation == KEY_OP_NOMATCH)) {
715 dbg("WAIT_FOR_SYSFS is matching, (non matching value)");
718 dbg("WAIT_FOR_SYSFS is not matching");
722 /* walk up the chain of physical devices and find a match */
724 /* check for matching driver */
725 if (rule->driver.operation != KEY_OP_UNSET) {
726 if (parent_device == NULL) {
727 dbg("device has no sysfs_device");
730 if (match_key("DRIVER", rule, &rule->driver, parent_device->driver_name))
734 /* check for matching bus value */
735 if (rule->bus.operation != KEY_OP_UNSET) {
736 if (parent_device == NULL) {
737 dbg("device has no sysfs_device");
740 if (match_key("BUS", rule, &rule->bus, parent_device->bus))
744 /* check for matching bus id */
745 if (rule->id.operation != KEY_OP_UNSET) {
746 if (parent_device == NULL) {
747 dbg("device has no sysfs_device");
750 if (match_key("ID", rule, &rule->id, parent_device->bus_id))
754 /* check for matching sysfs pairs */
755 if (rule->sysfs.count) {
758 dbg("check %i SYSFS keys", rule->sysfs.count);
759 for (i = 0; i < rule->sysfs.count; i++) {
760 struct key_pair *pair = &rule->sysfs.keys[i];
761 const char *key_name = key_pair_name(rule, pair);
762 const char *key_value = key_val(rule, &pair->key);
763 char value[VALUE_SIZE];
766 if (find_sysfs_attribute(class_dev, parent_device, key_name, value, sizeof(value)) != 0)
769 /* strip trailing whitespace of value, if not asked to match for it */
770 len = strlen(key_value);
771 if (len && !isspace(key_value[len-1])) {
773 while (len > 0 && isspace(value[len-1]))
775 dbg("removed %zi trailing whitespace chars from '%s'", strlen(value)-len, value);
778 if (match_key("SYSFS", rule, &pair->key, value))
781 dbg("all %i SYSFS keys matched", rule->sysfs.count);
784 /* found matching physical device */
787 dbg("try parent sysfs device");
788 parent_device = sysfs_get_device_parent(parent_device);
789 if (parent_device == NULL)
791 dbg("look at sysfs_device->path='%s'", parent_device->path);
792 dbg("look at sysfs_device->bus_id='%s'", parent_device->bus_id);
795 /* import variables from file into environment */
796 if (rule->import.operation != KEY_OP_UNSET) {
797 char import[PATH_SIZE];
800 strlcpy(import, key_val(rule, &rule->import), sizeof(import));
801 apply_format(udev, import, sizeof(import), class_dev, sysfs_device);
802 dbg("check for IMPORT import='%s'", import);
803 if (rule->import_exec) {
804 dbg("run executable file import='%s'", import);
805 rc = import_program_into_env(udev, import);
807 dbg("import file import='%s'", import);
808 rc = import_file_into_env(udev, import);
811 dbg("IMPORT failed");
812 if (rule->import.operation != KEY_OP_NOMATCH)
815 dbg("IMPORT '%s' imported", key_val(rule, &rule->import));
816 dbg("IMPORT key is true");
819 /* execute external program */
820 if (rule->program.operation != KEY_OP_UNSET) {
821 char program[PATH_SIZE];
822 char result[PATH_SIZE];
824 strlcpy(program, key_val(rule, &rule->program), sizeof(program));
825 apply_format(udev, program, sizeof(program), class_dev, sysfs_device);
826 dbg("check for PROGRAM program='%s", program);
827 if (execute_program(program, udev->subsystem, result, sizeof(result), NULL) != 0) {
828 dbg("PROGRAM is not matching");
829 if (rule->program.operation != KEY_OP_NOMATCH)
832 dbg("PROGRAM matches");
833 remove_trailing_char(result, '\n');
834 replace_untrusted_chars(result);
835 dbg("result is '%s'", result);
836 strlcpy(udev->program_result, result, sizeof(udev->program_result));
837 dbg("PROGRAM returned successful");
838 if (rule->program.operation == KEY_OP_NOMATCH)
841 dbg("PROGRAM key is true");
844 /* check for matching result of external program */
845 if (match_key("RESULT", rule, &rule->result, udev->program_result))
855 int udev_rules_get_name(struct udev_rules *rules, struct udevice *udev, struct sysfs_class_device *class_dev)
857 struct sysfs_class_device *class_dev_parent;
858 struct sysfs_device *sysfs_device = NULL;
859 struct udev_rule *rule;
862 dbg("class_dev->name='%s'", class_dev->name);
864 /* Figure out where the "device"-symlink is at. For char devices this will
865 * always be in the class_dev->path. On block devices, only the main block
866 * device will have the device symlink in it's path. All partition devices
867 * need to look at the symlink in its parent directory.
869 class_dev_parent = sysfs_get_classdev_parent(class_dev);
870 if (class_dev_parent != NULL) {
871 dbg("given class device has a parent, use this instead");
872 sysfs_device = sysfs_get_classdev_device(class_dev_parent);
874 sysfs_device = sysfs_get_classdev_device(class_dev);
878 dbg("found devices device: path='%s', bus_id='%s', bus='%s'",
879 sysfs_device->path, sysfs_device->bus_id, sysfs_device->bus);
880 strlcpy(udev->bus_id, sysfs_device->bus_id, sizeof(udev->bus_id));
883 dbg("udev->kernel_name='%s'", udev->kernel_name);
885 /* look for a matching rule to apply */
886 udev_rules_iter_init(rules);
888 rule = udev_rules_iter_next(rules);
892 if (name_set && rule->name.operation != KEY_OP_UNSET) {
893 dbg("node name already set, rule ignored");
898 if (match_rule(udev, rule, class_dev, sysfs_device) == 0) {
900 if (rule->ignore_device) {
901 info("rule applied, '%s' is ignored", udev->kernel_name);
902 udev->ignore_device = 1;
905 if (rule->ignore_remove) {
906 udev->ignore_remove = 1;
907 dbg("remove event should be ignored");
909 /* apply all_partitions option only at a main block device */
910 if (rule->partitions && udev->type == DEV_BLOCK && udev->kernel_number[0] == '\0') {
911 udev->partitions = rule->partitions;
912 dbg("creation of partition nodes requested");
915 /* apply permissions */
916 if (!udev->mode_final && rule->mode != 0000) {
917 if (rule->mode_operation == KEY_OP_ASSIGN_FINAL)
918 udev->mode_final = 1;
919 udev->mode = rule->mode;
920 dbg("applied mode=%#o to '%s'", rule->mode, udev->kernel_name);
922 if (!udev->owner_final && rule->owner.operation != KEY_OP_UNSET) {
923 if (rule->owner.operation == KEY_OP_ASSIGN_FINAL)
924 udev->owner_final = 1;
925 strlcpy(udev->owner, key_val(rule, &rule->owner), sizeof(udev->owner));
926 apply_format(udev, udev->owner, sizeof(udev->owner), class_dev, sysfs_device);
927 dbg("applied owner='%s' to '%s'", udev->owner, udev->kernel_name);
929 if (!udev->group_final && rule->group.operation != KEY_OP_UNSET) {
930 if (rule->group.operation == KEY_OP_ASSIGN_FINAL)
931 udev->group_final = 1;
932 strlcpy(udev->group, key_val(rule, &rule->group), sizeof(udev->group));
933 apply_format(udev, key_val(rule, &rule->group), sizeof(udev->group), class_dev, sysfs_device);
934 dbg("applied group='%s' to '%s'", udev->group, udev->kernel_name);
937 /* collect symlinks */
938 if (!udev->symlink_final && rule->symlink.operation != KEY_OP_UNSET) {
939 char temp[PATH_SIZE];
942 if (rule->symlink.operation == KEY_OP_ASSIGN_FINAL)
943 udev->symlink_final = 1;
944 if (rule->symlink.operation == KEY_OP_ASSIGN || rule->symlink.operation == KEY_OP_ASSIGN_FINAL) {
945 struct name_entry *name_loop;
946 struct name_entry *temp_loop;
948 info("reset symlink list");
949 list_for_each_entry_safe(name_loop, temp_loop, &udev->symlink_list, node) {
950 list_del(&name_loop->node);
954 strlcpy(temp, key_val(rule, &rule->symlink), sizeof(temp));
955 apply_format(udev, temp, sizeof(temp), class_dev, sysfs_device);
956 info("rule applied, added symlink '%s'", temp);
958 /* add multiple symlinks separated by spaces */
960 next = strchr(temp, ' ');
963 info("add symlink '%s'", pos);
964 name_list_add(&udev->symlink_list, pos, 0);
966 next = strchr(pos, ' ');
968 info("add symlink '%s'", pos);
969 name_list_add(&udev->symlink_list, pos, 0);
972 /* set name, later rules with name set will be ignored */
973 if (rule->name.operation != KEY_OP_UNSET) {
975 strlcpy(udev->name, key_val(rule, &rule->name), sizeof(udev->name));
976 apply_format(udev, udev->name, sizeof(udev->name), class_dev, sysfs_device);
978 info("rule applied, '%s' becomes '%s'", udev->kernel_name, udev->name);
979 if (udev->type != DEV_NET)
980 dbg("name, '%s' is going to have owner='%s', group='%s', mode=%#o partitions=%i",
981 udev->name, udev->owner, udev->group, udev->mode, udev->partitions);
984 if (!udev->run_final && rule->run.operation != KEY_OP_UNSET) {
985 char program[PATH_SIZE];
987 if (rule->run.operation == KEY_OP_ASSIGN_FINAL)
989 if (rule->run.operation == KEY_OP_ASSIGN || rule->run.operation == KEY_OP_ASSIGN_FINAL) {
990 struct name_entry *name_loop;
991 struct name_entry *temp_loop;
993 info("reset run list");
994 list_for_each_entry_safe(name_loop, temp_loop, &udev->run_list, node) {
995 list_del(&name_loop->node);
999 strlcpy(program, key_val(rule, &rule->run), sizeof(program));
1000 apply_format(udev, program, sizeof(program), class_dev, sysfs_device);
1001 dbg("add run '%s'", program);
1002 name_list_add(&udev->run_list, program, 0);
1005 if (rule->last_rule) {
1006 dbg("last rule to be applied");
1013 strlcpy(udev->name, udev->kernel_name, sizeof(udev->name));
1014 info("no rule found, will use kernel name '%s'", udev->name);
1017 if (udev->tmp_node[0] != '\0') {
1018 dbg("removing temporary device node");
1019 unlink_secure(udev->tmp_node);
1020 udev->tmp_node[0] = '\0';
1026 int udev_rules_get_run(struct udev_rules *rules, struct udevice *udev, struct sysfs_device *sysfs_device)
1028 struct udev_rule *rule;
1030 /* look for a matching rule to apply */
1031 udev_rules_iter_init(rules);
1033 rule = udev_rules_iter_next(rules);
1037 dbg("process rule");
1038 if (rule->name.operation != KEY_OP_UNSET || rule->symlink.operation != KEY_OP_UNSET ||
1039 rule->mode_operation != KEY_OP_UNSET || rule->owner.operation != KEY_OP_UNSET || rule->group.operation != KEY_OP_UNSET) {
1040 dbg("skip rule that names a device");
1044 if (match_rule(udev, rule, NULL, sysfs_device) == 0) {
1045 if (rule->ignore_device) {
1046 info("rule applied, '%s' is ignored", udev->kernel_name);
1047 udev->ignore_device = 1;
1051 if (!udev->run_final && rule->run.operation != KEY_OP_UNSET) {
1052 char program[PATH_SIZE];
1054 if (rule->run.operation == KEY_OP_ASSIGN || rule->run.operation == KEY_OP_ASSIGN_FINAL) {
1055 struct name_entry *name_loop;
1056 struct name_entry *temp_loop;
1058 info("reset run list");
1059 list_for_each_entry_safe(name_loop, temp_loop, &udev->run_list, node) {
1060 list_del(&name_loop->node);
1064 strlcpy(program, key_val(rule, &rule->run), sizeof(program));
1065 apply_format(udev, program, sizeof(program), NULL, sysfs_device);
1066 dbg("add run '%s'", program);
1067 name_list_add(&udev->run_list, program, 0);
1068 if (rule->run.operation == KEY_OP_ASSIGN_FINAL)
1072 if (rule->last_rule) {
1073 dbg("last rule to be applied");