mirror of
https://github.com/systemd/systemd-stable.git
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795 lines
20 KiB
C
795 lines
20 KiB
C
/*
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* Copyright (C) 2003,2004 Greg Kroah-Hartman <greg@kroah.com>
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* Copyright (C) 2003-2006 Kay Sievers <kay.sievers@vrfy.org>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#include <stddef.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include <ctype.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include <errno.h>
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#include "udev.h"
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#include "udev_rules.h"
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void udev_rules_iter_init(struct udev_rules *rules)
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{
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dbg("bufsize=%zi", rules->bufsize);
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rules->current = 0;
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}
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struct udev_rule *udev_rules_iter_next(struct udev_rules *rules)
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{
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static struct udev_rule *rule;
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if (!rules)
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return NULL;
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dbg("current=%zi", rules->current);
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if (rules->current >= rules->bufsize) {
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dbg("no more rules");
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return NULL;
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}
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/* get next rule */
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rule = (struct udev_rule *) (rules->buf + rules->current);
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rules->current += sizeof(struct udev_rule) + rule->bufsize;
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return rule;
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}
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struct udev_rule *udev_rules_iter_label(struct udev_rules *rules, const char *label)
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{
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static struct udev_rule *rule;
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next:
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dbg("current=%zi", rules->current);
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if (rules->current >= rules->bufsize) {
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dbg("no more rules");
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return NULL;
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}
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rule = (struct udev_rule *) (rules->buf + rules->current);
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if (strcmp(&rule->buf[rule->label.val_off], label) != 0) {
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dbg("moving forward, looking for label '%s'", label);
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rules->current += sizeof(struct udev_rule) + rule->bufsize;
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goto next;
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}
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dbg("found label '%s'", label);
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return rule;
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}
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static int get_key(char **line, char **key, enum key_operation *operation, char **value)
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{
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char *linepos;
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char *temp;
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linepos = *line;
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if (linepos == NULL && linepos[0] == '\0')
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return -1;
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/* skip whitespace */
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while (isspace(linepos[0]) || linepos[0] == ',')
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linepos++;
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/* get the key */
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if (linepos[0] == '\0')
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return -1;
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*key = linepos;
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while (1) {
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linepos++;
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if (linepos[0] == '\0')
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return -1;
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if (isspace(linepos[0]))
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break;
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if (linepos[0] == '=')
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break;
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if ((linepos[0] == '+') || (linepos[0] == '!') || (linepos[0] == ':'))
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if (linepos[1] == '=')
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break;
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}
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/* remember end of key */
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temp = linepos;
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/* skip whitespace after key */
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while (isspace(linepos[0]))
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linepos++;
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if (linepos[0] == '\0')
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return -1;
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/* get operation type */
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if (linepos[0] == '=' && linepos[1] == '=') {
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*operation = KEY_OP_MATCH;
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linepos += 2;
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dbg("operator=match");
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} else if (linepos[0] == '!' && linepos[1] == '=') {
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*operation = KEY_OP_NOMATCH;
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linepos += 2;
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dbg("operator=nomatch");
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} else if (linepos[0] == '+' && linepos[1] == '=') {
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*operation = KEY_OP_ADD;
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linepos += 2;
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dbg("operator=add");
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} else if (linepos[0] == '=') {
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*operation = KEY_OP_ASSIGN;
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linepos++;
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dbg("operator=assign");
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} else if (linepos[0] == ':' && linepos[1] == '=') {
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*operation = KEY_OP_ASSIGN_FINAL;
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linepos += 2;
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dbg("operator=assign_final");
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} else
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return -1;
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/* terminate key */
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temp[0] = '\0';
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dbg("key='%s'", *key);
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/* skip whitespace after operator */
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while (isspace(linepos[0]))
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linepos++;
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if (linepos[0] == '\0')
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return -1;
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/* get the value*/
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if (linepos[0] == '"')
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linepos++;
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else
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return -1;
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*value = linepos;
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temp = strchr(linepos, '"');
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if (!temp)
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return -1;
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temp[0] = '\0';
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temp++;
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dbg("value='%s'", *value);
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/* move line to next key */
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*line = temp;
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return 0;
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}
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/* extract possible KEY{attr} */
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static char *get_key_attribute(char *str)
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{
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char *pos;
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char *attr;
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attr = strchr(str, '{');
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if (attr != NULL) {
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attr++;
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pos = strchr(attr, '}');
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if (pos == NULL) {
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err("missing closing brace for format");
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return NULL;
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}
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pos[0] = '\0';
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dbg("attribute='%s'", attr);
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return attr;
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}
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return NULL;
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}
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static int add_rule_key(struct udev_rule *rule, struct key *key,
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enum key_operation operation, const char *value)
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{
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size_t val_len = strnlen(value, PATH_SIZE);
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key->operation = operation;
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key->val_off = rule->bufsize;
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strlcpy(rule->buf + rule->bufsize, value, val_len+1);
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rule->bufsize += val_len+1;
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return 0;
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}
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static int add_rule_key_pair(struct udev_rule *rule, struct key_pairs *pairs,
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enum key_operation operation, const char *key, const char *value)
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{
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size_t key_len = strnlen(key, PATH_SIZE);
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if (pairs->count >= PAIRS_MAX) {
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err("skip, too many keys of the same type in a single rule");
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return -1;
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}
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add_rule_key(rule, &pairs->keys[pairs->count].key, operation, value);
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/* add the key-name of the pair */
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pairs->keys[pairs->count].key_name_off = rule->bufsize;
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strlcpy(rule->buf + rule->bufsize, key, key_len+1);
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rule->bufsize += key_len+1;
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pairs->count++;
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return 0;
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}
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static int add_to_rules(struct udev_rules *rules, char *line, const char *filename, unsigned int lineno)
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{
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char buf[sizeof(struct udev_rule) + LINE_SIZE];
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struct udev_rule *rule;
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size_t rule_size;
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int valid;
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char *linepos;
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char *attr;
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size_t padding;
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int physdev = 0;
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int retval;
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memset(buf, 0x00, sizeof(buf));
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rule = (struct udev_rule *) buf;
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linepos = line;
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valid = 0;
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/* get all the keys */
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while (1) {
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char *key;
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char *value;
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enum key_operation operation = KEY_OP_UNSET;
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retval = get_key(&linepos, &key, &operation, &value);
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if (retval)
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break;
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if (strcasecmp(key, "ACTION") == 0) {
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if (operation != KEY_OP_MATCH &&
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operation != KEY_OP_NOMATCH) {
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err("invalid ACTION operation");
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goto invalid;
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}
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add_rule_key(rule, &rule->action, operation, value);
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valid = 1;
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continue;
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}
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if (strcasecmp(key, "DEVPATH") == 0) {
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if (operation != KEY_OP_MATCH &&
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operation != KEY_OP_NOMATCH) {
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err("invalid DEVPATH operation");
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goto invalid;
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}
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add_rule_key(rule, &rule->devpath, operation, value);
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valid = 1;
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continue;
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}
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if (strcasecmp(key, "KERNEL") == 0) {
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if (operation != KEY_OP_MATCH &&
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operation != KEY_OP_NOMATCH) {
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err("invalid KERNEL operation");
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goto invalid;
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}
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add_rule_key(rule, &rule->kernel, operation, value);
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valid = 1;
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continue;
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}
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if (strcasecmp(key, "SUBSYSTEM") == 0) {
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if (operation != KEY_OP_MATCH &&
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operation != KEY_OP_NOMATCH) {
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err("invalid SUBSYSTEM operation");
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goto invalid;
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}
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/* bus, class, subsystem events should all be the same */
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if (strcmp(value, "subsystem") == 0 ||
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strcmp(value, "bus") == 0 ||
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strcmp(value, "class") == 0) {
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if (strcmp(value, "bus") == 0 || strcmp(value, "class") == 0)
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err("'%s' must be specified as 'subsystem' "
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"please fix it in %s:%u", value, filename, lineno);
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add_rule_key(rule, &rule->subsystem, operation, "subsystem|class|bus");
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} else
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add_rule_key(rule, &rule->subsystem, operation, value);
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valid = 1;
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continue;
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}
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if (strcasecmp(key, "DRIVER") == 0) {
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if (operation != KEY_OP_MATCH &&
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operation != KEY_OP_NOMATCH) {
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err("invalid DRIVER operation");
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goto invalid;
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}
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add_rule_key(rule, &rule->driver, operation, value);
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valid = 1;
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continue;
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}
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if (strncasecmp(key, "ATTR{", sizeof("ATTR{")-1) == 0) {
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attr = get_key_attribute(key + sizeof("ATTR")-1);
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if (attr == NULL) {
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err("error parsing ATTR attribute");
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goto invalid;
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}
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if (add_rule_key_pair(rule, &rule->attr, operation, attr, value) != 0)
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goto invalid;
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valid = 1;
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continue;
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}
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if (strcasecmp(key, "KERNELS") == 0 ||
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strcasecmp(key, "ID") == 0) {
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if (operation != KEY_OP_MATCH &&
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operation != KEY_OP_NOMATCH) {
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err("invalid KERNELS operation");
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goto invalid;
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}
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add_rule_key(rule, &rule->kernels, operation, value);
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valid = 1;
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continue;
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}
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if (strcasecmp(key, "SUBSYSTEMS") == 0 ||
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strcasecmp(key, "BUS") == 0) {
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if (operation != KEY_OP_MATCH &&
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operation != KEY_OP_NOMATCH) {
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err("invalid SUBSYSTEMS operation");
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goto invalid;
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}
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add_rule_key(rule, &rule->subsystems, operation, value);
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valid = 1;
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continue;
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}
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if (strcasecmp(key, "DRIVERS") == 0) {
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if (operation != KEY_OP_MATCH &&
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operation != KEY_OP_NOMATCH) {
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err("invalid DRIVERS operation");
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goto invalid;
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}
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add_rule_key(rule, &rule->drivers, operation, value);
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valid = 1;
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continue;
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}
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if (strncasecmp(key, "ATTRS{", sizeof("ATTRS{")-1) == 0 ||
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strncasecmp(key, "SYSFS{", sizeof("SYSFS{")-1) == 0) {
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if (operation != KEY_OP_MATCH &&
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operation != KEY_OP_NOMATCH) {
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err("invalid ATTRS operation");
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goto invalid;
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}
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attr = get_key_attribute(key + sizeof("ATTRS")-1);
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if (attr == NULL) {
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err("error parsing ATTRS attribute");
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goto invalid;
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}
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if (strncmp(attr, "device/", 7) == 0)
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err("the 'device' link is deprecated and will be removed from a future kernel, "
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"please fix it in %s:%u", filename, lineno);
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else if (strstr(attr, "../") != NULL)
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err("do not reference parent sysfs directories directly, that may break with a future kernel, "
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"please fix it in %s:%u", filename, lineno);
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if (add_rule_key_pair(rule, &rule->attrs, operation, attr, value) != 0)
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goto invalid;
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valid = 1;
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continue;
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}
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if (strncasecmp(key, "ENV{", sizeof("ENV{")-1) == 0) {
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attr = get_key_attribute(key + sizeof("ENV")-1);
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if (attr == NULL) {
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err("error parsing ENV attribute");
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goto invalid;
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}
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if (strncmp(attr, "PHYSDEV", 7) == 0)
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physdev = 1;
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if (add_rule_key_pair(rule, &rule->env, operation, attr, value) != 0)
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goto invalid;
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valid = 1;
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continue;
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}
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|
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if (strcasecmp(key, "PROGRAM") == 0) {
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add_rule_key(rule, &rule->program, operation, value);
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valid = 1;
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continue;
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}
|
|
|
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if (strcasecmp(key, "RESULT") == 0) {
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if (operation != KEY_OP_MATCH &&
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operation != KEY_OP_NOMATCH) {
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err("invalid RESULT operation");
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goto invalid;
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}
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add_rule_key(rule, &rule->result, operation, value);
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valid = 1;
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continue;
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}
|
|
|
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if (strncasecmp(key, "IMPORT", sizeof("IMPORT")-1) == 0) {
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attr = get_key_attribute(key + sizeof("IMPORT")-1);
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if (attr != NULL && strstr(attr, "program")) {
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dbg("IMPORT will be executed");
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rule->import_type = IMPORT_PROGRAM;
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} else if (attr != NULL && strstr(attr, "file")) {
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dbg("IMPORT will be included as file");
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rule->import_type = IMPORT_FILE;
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} else if (attr != NULL && strstr(attr, "parent")) {
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dbg("IMPORT will include the parent values");
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|
rule->import_type = IMPORT_PARENT;
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|
} else {
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|
/* figure it out if it is executable */
|
|
char file[PATH_SIZE];
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|
char *pos;
|
|
struct stat statbuf;
|
|
|
|
strlcpy(file, value, sizeof(file));
|
|
pos = strchr(file, ' ');
|
|
if (pos)
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|
pos[0] = '\0';
|
|
|
|
/* allow programs in /lib/udev called without the path */
|
|
if (strchr(file, '/') == NULL) {
|
|
strlcpy(file, "/lib/udev/", sizeof(file));
|
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strlcat(file, value, sizeof(file));
|
|
pos = strchr(file, ' ');
|
|
if (pos)
|
|
pos[0] = '\0';
|
|
}
|
|
|
|
dbg("IMPORT auto mode for '%s'", file);
|
|
if (!lstat(file, &statbuf) && (statbuf.st_mode & S_IXUSR)) {
|
|
dbg("IMPORT is executable, will be executed (autotype)");
|
|
rule->import_type = IMPORT_PROGRAM;
|
|
} else {
|
|
dbg("IMPORT is not executable, will be included as file (autotype)");
|
|
rule->import_type = IMPORT_FILE;
|
|
}
|
|
}
|
|
add_rule_key(rule, &rule->import, operation, value);
|
|
valid = 1;
|
|
continue;
|
|
}
|
|
|
|
if (strncasecmp(key, "TEST", sizeof("TEST")-1) == 0) {
|
|
if (operation != KEY_OP_MATCH &&
|
|
operation != KEY_OP_NOMATCH) {
|
|
err("invalid TEST operation");
|
|
goto invalid;
|
|
}
|
|
attr = get_key_attribute(key + sizeof("TEST")-1);
|
|
if (attr != NULL)
|
|
rule->test_mode_mask = strtol(attr, NULL, 8);
|
|
add_rule_key(rule, &rule->test, operation, value);
|
|
valid = 1;
|
|
continue;
|
|
}
|
|
|
|
if (strncasecmp(key, "RUN", sizeof("RUN")-1) == 0) {
|
|
attr = get_key_attribute(key + sizeof("RUN")-1);
|
|
if (attr != NULL) {
|
|
if (strstr(attr, "ignore_error"))
|
|
rule->run_ignore_error = 1;
|
|
}
|
|
add_rule_key(rule, &rule->run, operation, value);
|
|
valid = 1;
|
|
continue;
|
|
}
|
|
|
|
if (strcasecmp(key, "WAIT_FOR_SYSFS") == 0) {
|
|
add_rule_key(rule, &rule->wait_for_sysfs, operation, value);
|
|
valid = 1;
|
|
continue;
|
|
}
|
|
|
|
if (strcasecmp(key, "LABEL") == 0) {
|
|
add_rule_key(rule, &rule->label, operation, value);
|
|
valid = 1;
|
|
continue;
|
|
}
|
|
|
|
if (strcasecmp(key, "GOTO") == 0) {
|
|
add_rule_key(rule, &rule->goto_label, operation, value);
|
|
valid = 1;
|
|
continue;
|
|
}
|
|
|
|
if (strncasecmp(key, "NAME", sizeof("NAME")-1) == 0) {
|
|
attr = get_key_attribute(key + sizeof("NAME")-1);
|
|
if (attr != NULL) {
|
|
if (strstr(attr, "all_partitions") != NULL) {
|
|
dbg("creation of partition nodes requested");
|
|
rule->partitions = DEFAULT_PARTITIONS_COUNT;
|
|
}
|
|
if (strstr(attr, "ignore_remove") != NULL) {
|
|
dbg("remove event should be ignored");
|
|
rule->ignore_remove = 1;
|
|
}
|
|
}
|
|
if (value[0] == '\0')
|
|
dbg("name empty, node creation supressed");
|
|
add_rule_key(rule, &rule->name, operation, value);
|
|
continue;
|
|
}
|
|
|
|
if (strcasecmp(key, "SYMLINK") == 0) {
|
|
if (operation == KEY_OP_MATCH ||
|
|
operation == KEY_OP_NOMATCH)
|
|
add_rule_key(rule, &rule->symlink_match, operation, value);
|
|
else
|
|
add_rule_key(rule, &rule->symlink, operation, value);
|
|
valid = 1;
|
|
continue;
|
|
}
|
|
|
|
if (strcasecmp(key, "OWNER") == 0) {
|
|
valid = 1;
|
|
if (rules->resolve_names && (!strchr(value, '$') && !strchr(value, '%'))) {
|
|
char *endptr;
|
|
strtoul(value, &endptr, 10);
|
|
if (endptr[0] != '\0') {
|
|
char owner[32];
|
|
uid_t uid = lookup_user(value);
|
|
dbg("replacing username='%s' by id=%i", value, uid);
|
|
sprintf(owner, "%u", (unsigned int) uid);
|
|
add_rule_key(rule, &rule->owner, operation, owner);
|
|
continue;
|
|
}
|
|
}
|
|
|
|
add_rule_key(rule, &rule->owner, operation, value);
|
|
continue;
|
|
}
|
|
|
|
if (strcasecmp(key, "GROUP") == 0) {
|
|
valid = 1;
|
|
if (rules->resolve_names && (!strchr(value, '$') && !strchr(value, '%'))) {
|
|
char *endptr;
|
|
strtoul(value, &endptr, 10);
|
|
if (endptr[0] != '\0') {
|
|
char group[32];
|
|
gid_t gid = lookup_group(value);
|
|
dbg("replacing groupname='%s' by id=%i", value, gid);
|
|
sprintf(group, "%u", (unsigned int) gid);
|
|
add_rule_key(rule, &rule->group, operation, group);
|
|
continue;
|
|
}
|
|
}
|
|
|
|
add_rule_key(rule, &rule->group, operation, value);
|
|
continue;
|
|
}
|
|
|
|
if (strcasecmp(key, "MODE") == 0) {
|
|
rule->mode = strtol(value, NULL, 8);
|
|
rule->mode_operation = operation;
|
|
valid = 1;
|
|
continue;
|
|
}
|
|
|
|
if (strcasecmp(key, "OPTIONS") == 0) {
|
|
const char *pos;
|
|
|
|
if (strstr(value, "last_rule") != NULL) {
|
|
dbg("last rule to be applied");
|
|
rule->last_rule = 1;
|
|
}
|
|
if (strstr(value, "ignore_device") != NULL) {
|
|
dbg("device should be ignored");
|
|
rule->ignore_device = 1;
|
|
}
|
|
if (strstr(value, "ignore_remove") != NULL) {
|
|
dbg("remove event should be ignored");
|
|
rule->ignore_remove = 1;
|
|
}
|
|
pos = strstr(value, "link_priority=");
|
|
if (pos != NULL) {
|
|
rule->link_priority = atoi(&pos[strlen("link_priority=")]);
|
|
dbg("link priority=%i", rule->link_priority);
|
|
}
|
|
pos = strstr(value, "string_escape=");
|
|
if (pos != NULL) {
|
|
pos = &pos[strlen("string_escape=")];
|
|
if (strncmp(pos, "none", strlen("none")) == 0)
|
|
rule->string_escape = ESCAPE_NONE;
|
|
else if (strncmp(pos, "replace", strlen("replace")) == 0)
|
|
rule->string_escape = ESCAPE_REPLACE;
|
|
}
|
|
if (strstr(value, "all_partitions") != NULL) {
|
|
dbg("creation of partition nodes requested");
|
|
rule->partitions = DEFAULT_PARTITIONS_COUNT;
|
|
}
|
|
valid = 1;
|
|
continue;
|
|
}
|
|
|
|
err("unknown key '%s' in %s:%u", key, filename, lineno);
|
|
}
|
|
|
|
if (physdev && rule->wait_for_sysfs.operation == KEY_OP_UNSET)
|
|
err("PHYSDEV* values are deprecated and will be removed from a future kernel, "
|
|
"please fix it in %s:%u", filename, lineno);
|
|
|
|
/* skip line if not any valid key was found */
|
|
if (!valid)
|
|
goto invalid;
|
|
|
|
/* grow buffer and add rule */
|
|
rule_size = sizeof(struct udev_rule) + rule->bufsize;
|
|
padding = (sizeof(size_t) - rule_size % sizeof(size_t)) % sizeof(size_t);
|
|
dbg("add %zi padding bytes", padding);
|
|
rule_size += padding;
|
|
rule->bufsize += padding;
|
|
|
|
rules->buf = realloc(rules->buf, rules->bufsize + rule_size);
|
|
if (!rules->buf) {
|
|
err("realloc failed");
|
|
goto exit;
|
|
}
|
|
dbg("adding rule to offset %zi", rules->bufsize);
|
|
memcpy(rules->buf + rules->bufsize, rule, rule_size);
|
|
rules->bufsize += rule_size;
|
|
exit:
|
|
return 0;
|
|
|
|
invalid:
|
|
err("invalid rule '%s:%u'", filename, lineno);
|
|
return -1;
|
|
}
|
|
|
|
static int parse_file(struct udev_rules *rules, const char *filename)
|
|
{
|
|
char line[LINE_SIZE];
|
|
char *bufline;
|
|
unsigned int lineno;
|
|
char *buf;
|
|
size_t bufsize;
|
|
size_t cur;
|
|
size_t count;
|
|
int retval = 0;
|
|
|
|
if (file_map(filename, &buf, &bufsize) != 0) {
|
|
err("can't open '%s' as rules file: %s", filename, strerror(errno));
|
|
return -1;
|
|
}
|
|
info("reading '%s' as rules file", filename);
|
|
|
|
/* loop through the whole file */
|
|
cur = 0;
|
|
lineno = 0;
|
|
while (cur < bufsize) {
|
|
unsigned int i, j;
|
|
|
|
count = buf_get_line(buf, bufsize, cur);
|
|
bufline = &buf[cur];
|
|
cur += count+1;
|
|
lineno++;
|
|
|
|
/* eat the whitespace */
|
|
while ((count > 0) && isspace(bufline[0])) {
|
|
bufline++;
|
|
count--;
|
|
}
|
|
if (count == 0)
|
|
continue;
|
|
|
|
/* see if this is a comment */
|
|
if (bufline[0] == COMMENT_CHARACTER)
|
|
continue;
|
|
|
|
if (count >= sizeof(line)) {
|
|
err("line too long, rule skipped '%s:%u'", filename, lineno);
|
|
continue;
|
|
}
|
|
|
|
/* skip backslash and newline from multiline rules */
|
|
for (i = j = 0; i < count; i++) {
|
|
if (bufline[i] == '\\' && bufline[i+1] == '\n')
|
|
continue;
|
|
|
|
line[j++] = bufline[i];
|
|
}
|
|
line[j] = '\0';
|
|
|
|
dbg("read '%s'", line);
|
|
add_to_rules(rules, line, filename, lineno);
|
|
}
|
|
|
|
file_unmap(buf, bufsize);
|
|
return retval;
|
|
}
|
|
|
|
int udev_rules_init(struct udev_rules *rules, int resolve_names)
|
|
{
|
|
struct stat statbuf;
|
|
char filename[PATH_MAX];
|
|
LIST_HEAD(name_list);
|
|
LIST_HEAD(dyn_list);
|
|
struct name_entry *name_loop, *name_tmp;
|
|
struct name_entry *dyn_loop, *dyn_tmp;
|
|
int retval = 0;
|
|
|
|
memset(rules, 0x00, sizeof(struct udev_rules));
|
|
rules->resolve_names = resolve_names;
|
|
|
|
/* read main config from single file or all files in a directory */
|
|
if (stat(udev_rules_dir, &statbuf) != 0)
|
|
return -1;
|
|
if ((statbuf.st_mode & S_IFMT) != S_IFDIR) {
|
|
dbg("parse single rules file '%s'", udev_rules_dir);
|
|
name_list_add(&name_list, udev_rules_dir, 1);
|
|
} else {
|
|
dbg("parse rules directory '%s'", udev_rules_dir);
|
|
retval = add_matching_files(&name_list, udev_rules_dir, RULESFILE_SUFFIX);
|
|
}
|
|
|
|
/* read dynamic rules directory */
|
|
strlcpy(filename, udev_root, sizeof(filename));
|
|
strlcat(filename, "/"RULES_DYN_DIR, sizeof(filename));
|
|
if (stat(filename, &statbuf) != 0) {
|
|
create_path(filename);
|
|
mkdir(filename, 0755);
|
|
}
|
|
add_matching_files(&dyn_list, filename, RULESFILE_SUFFIX);
|
|
|
|
/* sort dynamic rules files by basename into list of files */
|
|
list_for_each_entry_safe(dyn_loop, dyn_tmp, &dyn_list, node) {
|
|
const char *dyn_base = strrchr(dyn_loop->name, '/');
|
|
|
|
if (dyn_base == NULL)
|
|
continue;
|
|
|
|
list_for_each_entry_safe(name_loop, name_tmp, &name_list, node) {
|
|
const char *name_base = strrchr(name_loop->name, '/');
|
|
|
|
if (name_base == NULL)
|
|
continue;
|
|
|
|
if (strcmp(name_base, dyn_base) > 0)
|
|
break;
|
|
}
|
|
list_move_tail(&dyn_loop->node, &name_loop->node);
|
|
}
|
|
|
|
/* parse list of files */
|
|
list_for_each_entry_safe(name_loop, name_tmp, &name_list, node) {
|
|
if (stat(name_loop->name, &statbuf) == 0) {
|
|
if (statbuf.st_size)
|
|
parse_file(rules, name_loop->name);
|
|
else
|
|
dbg("empty rules file '%s'", name_loop->name);
|
|
} else
|
|
err("could not read '%s': %s", name_loop->name, strerror(errno));
|
|
list_del(&name_loop->node);
|
|
free(name_loop);
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
void udev_rules_cleanup(struct udev_rules *rules)
|
|
{
|
|
if (rules->buf) {
|
|
free(rules->buf);
|
|
rules->buf = NULL;
|
|
}
|
|
}
|
|
|