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-rw-r--r--udev/udev-rules-parse.c876
1 files changed, 0 insertions, 876 deletions
diff --git a/udev/udev-rules-parse.c b/udev/udev-rules-parse.c
deleted file mode 100644
index 16bb91573a..0000000000
--- a/udev/udev-rules-parse.c
+++ /dev/null
@@ -1,876 +0,0 @@
-/*
- * Copyright (C) 2003,2004 Greg Kroah-Hartman <greg@kroah.com>
- * Copyright (C) 2003-2008 Kay Sievers <kay.sievers@vrfy.org>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-#include <ctype.h>
-#include <unistd.h>
-#include <dirent.h>
-#include <errno.h>
-#include <sys/stat.h>
-
-#include "udev.h"
-#include "udev-rules.h"
-
-
-void udev_rules_iter_init(struct udev_rules_iter *iter, struct udev_rules *rules)
-{
- dbg(rules->udev, "bufsize=%zi\n", rules->bufsize);
- iter->rules = rules;
- iter->current = 0;
-}
-
-struct udev_rule *udev_rules_iter_next(struct udev_rules_iter *iter)
-{
- struct udev_rules *rules;
- struct udev_rule *rule;
-
- rules = iter->rules;
- if (!rules)
- return NULL;
-
- dbg(rules->udev, "current=%zi\n", iter->current);
- if (iter->current >= rules->bufsize) {
- dbg(rules->udev, "no more rules\n");
- return NULL;
- }
-
- /* get next rule */
- rule = (struct udev_rule *) (rules->buf + iter->current);
- iter->current += sizeof(struct udev_rule) + rule->bufsize;
-
- return rule;
-}
-
-struct udev_rule *udev_rules_iter_goto(struct udev_rules_iter *iter, size_t rule_off)
-{
- struct udev_rules *rules = iter->rules;
- struct udev_rule *rule;
-
- dbg(rules->udev, "current=%zi\n", iter->current);
- iter->current = rule_off;
- rule = (struct udev_rule *) (rules->buf + iter->current);
-
- return rule;
-}
-
-static size_t find_label(const struct udev_rules_iter *iter, const char *label)
-{
- struct udev_rule *rule;
- struct udev_rules *rules = iter->rules;
- size_t current = iter->current;
-
-next:
- dbg(rules->udev, "current=%zi\n", current);
- if (current >= rules->bufsize) {
- dbg(rules->udev, "LABEL='%s' not found\n", label);
- return 0;
- }
- rule = (struct udev_rule *) (rules->buf + current);
-
- if (strcmp(&rule->buf[rule->label.val_off], label) != 0) {
- dbg(rules->udev, "moving forward, looking for label '%s'\n", label);
- current += sizeof(struct udev_rule) + rule->bufsize;
- goto next;
- }
-
- dbg(rules->udev, "found label '%s'\n", label);
- return current;
-}
-
-static int get_key(struct udev_rules *rules, char **line, char **key, enum key_operation *operation, char **value)
-{
- char *linepos;
- char *temp;
-
- linepos = *line;
- if (linepos == NULL && linepos[0] == '\0')
- return -1;
-
- /* skip whitespace */
- while (isspace(linepos[0]) || linepos[0] == ',')
- linepos++;
-
- /* get the key */
- if (linepos[0] == '\0')
- return -1;
- *key = linepos;
-
- while (1) {
- linepos++;
- if (linepos[0] == '\0')
- return -1;
- if (isspace(linepos[0]))
- break;
- if (linepos[0] == '=')
- break;
- if ((linepos[0] == '+') || (linepos[0] == '!') || (linepos[0] == ':'))
- if (linepos[1] == '=')
- break;
- }
-
- /* remember end of key */
- temp = linepos;
-
- /* skip whitespace after key */
- while (isspace(linepos[0]))
- linepos++;
- if (linepos[0] == '\0')
- return -1;
-
- /* get operation type */
- if (linepos[0] == '=' && linepos[1] == '=') {
- *operation = KEY_OP_MATCH;
- linepos += 2;
- dbg(rules->udev, "match:\n");
- } else if (linepos[0] == '!' && linepos[1] == '=') {
- *operation = KEY_OP_NOMATCH;
- linepos += 2;
- dbg(rules->udev, "nomatch:\n");
- } else if (linepos[0] == '+' && linepos[1] == '=') {
- *operation = KEY_OP_ADD;
- linepos += 2;
- dbg(rules->udev, "add:\n");
- } else if (linepos[0] == '=') {
- *operation = KEY_OP_ASSIGN;
- linepos++;
- dbg(rules->udev, "assign:\n");
- } else if (linepos[0] == ':' && linepos[1] == '=') {
- *operation = KEY_OP_ASSIGN_FINAL;
- linepos += 2;
- dbg(rules->udev, "assign_final:\n");
- } else
- return -1;
-
- /* terminate key */
- temp[0] = '\0';
-
- /* skip whitespace after operator */
- while (isspace(linepos[0]))
- linepos++;
- if (linepos[0] == '\0')
- return -1;
-
- /* get the value*/
- if (linepos[0] == '"')
- linepos++;
- else
- return -1;
- *value = linepos;
-
- temp = strchr(linepos, '"');
- if (!temp)
- return -1;
- temp[0] = '\0';
- temp++;
- dbg(rules->udev, "'%s'-'%s'\n", *key, *value);
-
- /* move line to next key */
- *line = temp;
-
- return 0;
-}
-
-/* extract possible KEY{attr} */
-static char *get_key_attribute(struct udev_rules *rules, char *str)
-{
- char *pos;
- char *attr;
-
- attr = strchr(str, '{');
- if (attr != NULL) {
- attr++;
- pos = strchr(attr, '}');
- if (pos == NULL) {
- err(rules->udev, "missing closing brace for format\n");
- return NULL;
- }
- pos[0] = '\0';
- dbg(rules->udev, "attribute='%s'\n", attr);
- return attr;
- }
-
- return NULL;
-}
-
-static int add_rule_key(struct udev_rule *rule, struct key *key,
- enum key_operation operation, const char *value)
-{
- size_t val_len = strnlen(value, UTIL_PATH_SIZE);
-
- key->operation = operation;
-
- key->val_off = rule->bufsize;
- util_strlcpy(rule->buf + rule->bufsize, value, val_len+1);
- rule->bufsize += val_len+1;
-
- return 0;
-}
-
-static int add_rule_key_pair(struct udev_rules *rules, struct udev_rule *rule, struct key_pairs *pairs,
- enum key_operation operation, const char *key, const char *value)
-{
- size_t key_len = strnlen(key, UTIL_PATH_SIZE);
-
- if (pairs->count >= PAIRS_MAX) {
- err(rules->udev, "skip, too many keys of the same type in a single rule\n");
- return -1;
- }
-
- add_rule_key(rule, &pairs->keys[pairs->count].key, operation, value);
-
- /* add the key-name of the pair */
- pairs->keys[pairs->count].key_name_off = rule->bufsize;
- util_strlcpy(rule->buf + rule->bufsize, key, key_len+1);
- rule->bufsize += key_len+1;
-
- pairs->count++;
-
- return 0;
-}
-
-static int add_to_rules(struct udev_rules *rules, char *line, const char *filename, unsigned int lineno)
-{
- char buf[sizeof(struct udev_rule) + UTIL_LINE_SIZE];
- struct udev_rule *rule;
- size_t rule_size;
- int valid;
- char *linepos;
- char *attr;
- size_t padding;
- int physdev = 0;
- int retval;
-
- memset(buf, 0x00, sizeof(buf));
- rule = (struct udev_rule *) buf;
- rule->event_timeout = -1;
- linepos = line;
- valid = 0;
-
- /* get all the keys */
- while (1) {
- char *key;
- char *value;
- enum key_operation operation = KEY_OP_UNSET;
-
- retval = get_key(rules, &linepos, &key, &operation, &value);
- if (retval)
- break;
-
- if (strcasecmp(key, "ACTION") == 0) {
- if (operation != KEY_OP_MATCH &&
- operation != KEY_OP_NOMATCH) {
- err(rules->udev, "invalid ACTION operation\n");
- goto invalid;
- }
- add_rule_key(rule, &rule->action, operation, value);
- valid = 1;
- continue;
- }
-
- if (strcasecmp(key, "DEVPATH") == 0) {
- if (operation != KEY_OP_MATCH &&
- operation != KEY_OP_NOMATCH) {
- err(rules->udev, "invalid DEVPATH operation\n");
- goto invalid;
- }
- add_rule_key(rule, &rule->devpath, operation, value);
- valid = 1;
- continue;
- }
-
- if (strcasecmp(key, "KERNEL") == 0) {
- if (operation != KEY_OP_MATCH &&
- operation != KEY_OP_NOMATCH) {
- err(rules->udev, "invalid KERNEL operation\n");
- goto invalid;
- }
- add_rule_key(rule, &rule->kernel, operation, value);
- valid = 1;
- continue;
- }
-
- if (strcasecmp(key, "SUBSYSTEM") == 0) {
- if (operation != KEY_OP_MATCH &&
- operation != KEY_OP_NOMATCH) {
- err(rules->udev, "invalid SUBSYSTEM operation\n");
- goto invalid;
- }
- /* bus, class, subsystem events should all be the same */
- if (strcmp(value, "subsystem") == 0 ||
- strcmp(value, "bus") == 0 ||
- strcmp(value, "class") == 0) {
- if (strcmp(value, "bus") == 0 || strcmp(value, "class") == 0)
- err(rules->udev, "'%s' must be specified as 'subsystem' \n"
- "please fix it in %s:%u", value, filename, lineno);
- add_rule_key(rule, &rule->subsystem, operation, "subsystem|class|bus");
- } else
- add_rule_key(rule, &rule->subsystem, operation, value);
- valid = 1;
- continue;
- }
-
- if (strcasecmp(key, "DRIVER") == 0) {
- if (operation != KEY_OP_MATCH &&
- operation != KEY_OP_NOMATCH) {
- err(rules->udev, "invalid DRIVER operation\n");
- goto invalid;
- }
- add_rule_key(rule, &rule->driver, operation, value);
- valid = 1;
- continue;
- }
-
- if (strncasecmp(key, "ATTR{", sizeof("ATTR{")-1) == 0) {
- attr = get_key_attribute(rules, key + sizeof("ATTR")-1);
- if (attr == NULL) {
- err(rules->udev, "error parsing ATTR attribute\n");
- goto invalid;
- }
- if (add_rule_key_pair(rules, rule, &rule->attr, operation, attr, value) != 0)
- goto invalid;
- valid = 1;
- continue;
- }
-
- if (strcasecmp(key, "KERNELS") == 0 ||
- strcasecmp(key, "ID") == 0) {
- if (operation != KEY_OP_MATCH &&
- operation != KEY_OP_NOMATCH) {
- err(rules->udev, "invalid KERNELS operation\n");
- goto invalid;
- }
- add_rule_key(rule, &rule->kernels, operation, value);
- valid = 1;
- continue;
- }
-
- if (strcasecmp(key, "SUBSYSTEMS") == 0 ||
- strcasecmp(key, "BUS") == 0) {
- if (operation != KEY_OP_MATCH &&
- operation != KEY_OP_NOMATCH) {
- err(rules->udev, "invalid SUBSYSTEMS operation\n");
- goto invalid;
- }
- add_rule_key(rule, &rule->subsystems, operation, value);
- valid = 1;
- continue;
- }
-
- if (strcasecmp(key, "DRIVERS") == 0) {
- if (operation != KEY_OP_MATCH &&
- operation != KEY_OP_NOMATCH) {
- err(rules->udev, "invalid DRIVERS operation\n");
- goto invalid;
- }
- add_rule_key(rule, &rule->drivers, operation, value);
- valid = 1;
- continue;
- }
-
- if (strncasecmp(key, "ATTRS{", sizeof("ATTRS{")-1) == 0 ||
- strncasecmp(key, "SYSFS{", sizeof("SYSFS{")-1) == 0) {
- if (operation != KEY_OP_MATCH &&
- operation != KEY_OP_NOMATCH) {
- err(rules->udev, "invalid ATTRS operation\n");
- goto invalid;
- }
- attr = get_key_attribute(rules, key + sizeof("ATTRS")-1);
- if (attr == NULL) {
- err(rules->udev, "error parsing ATTRS attribute\n");
- goto invalid;
- }
- if (strncmp(attr, "device/", 7) == 0)
- err(rules->udev, "the 'device' link is deprecated and will be removed from a future kernel, \n"
- "please fix it in %s:%u", filename, lineno);
- else if (strstr(attr, "../") != NULL)
- err(rules->udev, "do not reference parent sysfs directories directly, that may break with a future kernel, \n"
- "please fix it in %s:%u", filename, lineno);
- if (add_rule_key_pair(rules, rule, &rule->attrs, operation, attr, value) != 0)
- goto invalid;
- valid = 1;
- continue;
- }
-
- if (strncasecmp(key, "ENV{", sizeof("ENV{")-1) == 0) {
- attr = get_key_attribute(rules, key + sizeof("ENV")-1);
- if (attr == NULL) {
- err(rules->udev, "error parsing ENV attribute\n");
- goto invalid;
- }
- if (strncmp(attr, "PHYSDEV", 7) == 0)
- physdev = 1;
- if (add_rule_key_pair(rules, rule, &rule->env, operation, attr, value) != 0)
- goto invalid;
- valid = 1;
- continue;
- }
-
- if (strcasecmp(key, "PROGRAM") == 0) {
- add_rule_key(rule, &rule->program, operation, value);
- valid = 1;
- continue;
- }
-
- if (strcasecmp(key, "RESULT") == 0) {
- if (operation != KEY_OP_MATCH &&
- operation != KEY_OP_NOMATCH) {
- err(rules->udev, "invalid RESULT operation\n");
- goto invalid;
- }
- add_rule_key(rule, &rule->result, operation, value);
- valid = 1;
- continue;
- }
-
- if (strncasecmp(key, "IMPORT", sizeof("IMPORT")-1) == 0) {
- attr = get_key_attribute(rules, key + sizeof("IMPORT")-1);
- if (attr != NULL && strstr(attr, "program")) {
- dbg(rules->udev, "IMPORT will be executed\n");
- rule->import_type = IMPORT_PROGRAM;
- } else if (attr != NULL && strstr(attr, "file")) {
- dbg(rules->udev, "IMPORT will be included as file\n");
- rule->import_type = IMPORT_FILE;
- } else if (attr != NULL && strstr(attr, "parent")) {
- dbg(rules->udev, "IMPORT will include the parent values\n");
- rule->import_type = IMPORT_PARENT;
- } else {
- /* figure it out if it is executable */
- char file[UTIL_PATH_SIZE];
- char *pos;
- struct stat statbuf;
-
- util_strlcpy(file, value, sizeof(file));
- pos = strchr(file, ' ');
- if (pos)
- pos[0] = '\0';
-
- /* allow programs in /lib/udev called without the path */
- if (strchr(file, '/') == NULL) {
- util_strlcpy(file, UDEV_PREFIX "/lib/udev/", sizeof(file));
- util_strlcat(file, value, sizeof(file));
- pos = strchr(file, ' ');
- if (pos)
- pos[0] = '\0';
- }
-
- dbg(rules->udev, "IMPORT auto mode for '%s'\n", file);
- if (!lstat(file, &statbuf) && (statbuf.st_mode & S_IXUSR)) {
- dbg(rules->udev, "IMPORT is executable, will be executed (autotype)\n");
- rule->import_type = IMPORT_PROGRAM;
- } else {
- dbg(rules->udev, "IMPORT is not executable, will be included as file (autotype)\n");
- 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(rules->udev, "invalid TEST operation\n");
- goto invalid;
- }
- attr = get_key_attribute(rules, 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(rules, 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") == 0 || strcasecmp(key, "WAIT_FOR_SYSFS") == 0) {
- add_rule_key(rule, &rule->wait_for, 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(rules, key + sizeof("NAME")-1);
- if (attr != NULL) {
- if (strstr(attr, "all_partitions") != NULL) {
- dbg(rules->udev, "creation of partition nodes requested\n");
- rule->partitions = DEFAULT_PARTITIONS_COUNT;
- }
- if (strstr(attr, "ignore_remove") != NULL) {
- dbg(rules->udev, "remove event should be ignored\n");
- rule->ignore_remove = 1;
- }
- }
- if (value[0] == '\0')
- dbg(rules->udev, "name empty, node creation supressed\n");
- 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, '$') && !strchr(value, '%'))) {
- char *endptr;
- strtoul(value, &endptr, 10);
- if (endptr[0] != '\0') {
- char owner[32];
- uid_t uid = lookup_user(rules->udev, value);
- dbg(rules->udev, "replacing username='%s' by id=%i\n", value, uid);
- sprintf(owner, "%u", (unsigned int) uid);
- add_rule_key(rule, &rule->owner, operation, owner);
- continue;
- }
- }
-
- add_rule_key(rule, &rule->owner, operation, value);
- continue;
- }
-
- if (strcasecmp(key, "GROUP") == 0) {
- valid = 1;
- if (rules->resolve_names && (!strchr(value, '$') && !strchr(value, '%'))) {
- char *endptr;
- strtoul(value, &endptr, 10);
- if (endptr[0] != '\0') {
- char group[32];
- gid_t gid = lookup_group(rules->udev, value);
- dbg(rules->udev, "replacing groupname='%s' by id=%i\n", 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) {
- add_rule_key(rule, &rule->mode, operation, value);
- valid = 1;
- continue;
- }
-
- if (strcasecmp(key, "OPTIONS") == 0) {
- const char *pos;
-
- if (strstr(value, "last_rule") != NULL) {
- dbg(rules->udev, "last rule to be applied\n");
- rule->last_rule = 1;
- }
- if (strstr(value, "ignore_device") != NULL) {
- dbg(rules->udev, "device should be ignored\n");
- rule->ignore_device = 1;
- }
- if (strstr(value, "ignore_remove") != NULL) {
- dbg(rules->udev, "remove event should be ignored\n");
- rule->ignore_remove = 1;
- }
- pos = strstr(value, "link_priority=");
- if (pos != NULL) {
- rule->link_priority = atoi(&pos[strlen("link_priority=")]);
- dbg(rules->udev, "link priority=%i\n", rule->link_priority);
- }
- pos = strstr(value, "event_timeout=");
- if (pos != NULL) {
- rule->event_timeout = atoi(&pos[strlen("event_timeout=")]);
- dbg(rules->udev, "event timout=%i\n", rule->event_timeout);
- }
- 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(rules->udev, "creation of partition nodes requested\n");
- rule->partitions = DEFAULT_PARTITIONS_COUNT;
- }
- valid = 1;
- continue;
- }
-
- err(rules->udev, "unknown key '%s' in %s:%u\n", key, filename, lineno);
- }
-
- if (physdev && rule->wait_for.operation == KEY_OP_UNSET)
- err(rules->udev, "PHYSDEV* values are deprecated and will be removed from a future kernel, \n"
- "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(rules->udev, "add %zi padding bytes\n", padding);
- rule_size += padding;
- rule->bufsize += padding;
-
- rules->buf = realloc(rules->buf, rules->bufsize + rule_size);
- if (!rules->buf) {
- err(rules->udev, "realloc failed\n");
- goto exit;
- }
- dbg(rules->udev, "adding rule to offset %zi\n", rules->bufsize);
- memcpy(rules->buf + rules->bufsize, rule, rule_size);
- rules->bufsize += rule_size;
-exit:
- return 0;
-
-invalid:
- err(rules->udev, "invalid rule '%s:%u'\n", filename, lineno);
- return -1;
-}
-
-static int parse_file(struct udev_rules *rules, const char *filename)
-{
- FILE *f;
- char line[UTIL_LINE_SIZE];
- size_t start;
- struct udev_rule *rule;
- struct udev_rules_iter iter;
-
- start = rules->bufsize;
- info(rules->udev, "reading '%s' as rules file\n", filename);
-
- f = fopen(filename, "r");
- if (f == NULL)
- return -1;
-
- while(fgets(line, sizeof(line), f) != NULL) {
- int line_nr = 0;
- char *key;
- size_t len;
-
- /* skip whitespace */
- line_nr++;
- key = line;
- while (isspace(key[0]))
- key++;
-
- /* comment */
- if (key[0] == '#')
- continue;
-
- len = strlen(line);
- if (len < 3)
- continue;
-
- /* continue reading if backslash+newline is found */
- while (line[len-2] == '\\') {
- if (fgets(&line[len-2], (sizeof(line)-len)+2, f) == NULL)
- break;
- line_nr++;
- len = strlen(line);
- }
-
- if (len+1 >= sizeof(line)) {
- err(rules->udev, "line too long '%s':%u, ignored\n", filename, line_nr);
- continue;
- }
- add_to_rules(rules, key, filename, line_nr);
- }
- fclose(f);
-
- /* compute all goto targets within this file */
- udev_rules_iter_init(&iter, rules);
- udev_rules_iter_goto(&iter, start);
- while((rule = udev_rules_iter_next(&iter))) {
- if (rule->goto_label.operation != KEY_OP_UNSET) {
- char *goto_label = &rule->buf[rule->goto_label.val_off];
-
- dbg(rules->udev, "resolving goto label '%s'\n", goto_label);
- rule->goto_rule_off = find_label(&iter, goto_label);
- if (rule->goto_rule_off == 0) {
- err(rules->udev, "ignore goto to nonexistent label '%s' in '%s'\n",
- goto_label, filename);
- rule->goto_rule_off = iter.current;
- }
- }
- }
- return 0;
-}
-
-static int add_matching_files(struct udev *udev, struct udev_list_node *file_list, const char *dirname, const char *suffix)
-{
- struct dirent *ent;
- DIR *dir;
- char filename[UTIL_PATH_SIZE];
-
- dbg(udev, "open directory '%s'\n", dirname);
- dir = opendir(dirname);
- if (dir == NULL) {
- err(udev, "unable to open '%s': %m\n", dirname);
- return -1;
- }
-
- while (1) {
- ent = readdir(dir);
- if (ent == NULL || ent->d_name[0] == '\0')
- break;
-
- if ((ent->d_name[0] == '.') || (ent->d_name[0] == '#'))
- continue;
-
- /* look for file matching with specified suffix */
- if (suffix != NULL) {
- const char *ext;
-
- ext = strrchr(ent->d_name, '.');
- if (ext == NULL)
- continue;
- if (strcmp(ext, suffix) != 0)
- continue;
- }
- dbg(udev, "put file '%s/%s' into list\n", dirname, ent->d_name);
-
- snprintf(filename, sizeof(filename), "%s/%s", dirname, ent->d_name);
- filename[sizeof(filename)-1] = '\0';
- udev_list_entry_add(udev, file_list, filename, NULL, 1, 1);
- }
-
- closedir(dir);
- return 0;
-}
-
-int udev_rules_init(struct udev *udev, struct udev_rules *rules, int resolve_names)
-{
- struct stat statbuf;
- char filename[PATH_MAX];
- struct udev_list_node file_list;
- struct udev_list_entry *file_loop, *file_tmp;
- int retval = 0;
-
- memset(rules, 0x00, sizeof(struct udev_rules));
- rules->udev = udev;
- rules->resolve_names = resolve_names;
- udev_list_init(&file_list);
-
- if (udev_get_rules_path(udev) != NULL) {
- /* custom rules location for testing */
- add_matching_files(udev, &file_list, udev_get_rules_path(udev), ".rules");
- } else {
- struct udev_list_node sort_list;
- struct udev_list_entry *sort_loop, *sort_tmp;
-
- /* read user/custom rules */
- add_matching_files(udev, &file_list, SYSCONFDIR "/udev/rules.d", ".rules");
-
- /* read dynamic/temporary rules */
- util_strlcpy(filename, udev_get_dev_path(udev), sizeof(filename));
- util_strlcat(filename, "/.udev/rules.d", sizeof(filename));
- if (stat(filename, &statbuf) != 0) {
- create_path(udev, filename);
- udev_selinux_setfscreatecon(udev, filename, S_IFDIR|0755);
- mkdir(filename, 0755);
- udev_selinux_resetfscreatecon(udev);
- }
- udev_list_init(&sort_list);
- add_matching_files(udev, &sort_list, filename, ".rules");
-
- /* read default rules */
- add_matching_files(udev, &sort_list, UDEV_PREFIX "/lib/udev/rules.d", ".rules");
-
- /* sort all rules files by basename into list of files */
- udev_list_entry_foreach_safe(sort_loop, sort_tmp, udev_list_get_entry(&sort_list)) {
- const char *sort_name = udev_list_entry_get_name(sort_loop);
- const char *sort_base = strrchr(sort_name, '/');
-
- if (sort_base == NULL)
- continue;
-
- udev_list_entry_foreach_safe(file_loop, file_tmp, udev_list_get_entry(&file_list)) {
- const char *file_name = udev_list_entry_get_name(file_loop);
- const char *file_base = strrchr(file_name, '/');
-
- if (file_base == NULL)
- continue;
- if (strcmp(file_base, sort_base) == 0) {
- info(udev, "rule file basename '%s' already added, ignoring '%s'\n",
- file_name, sort_name);
- udev_list_entry_remove(sort_loop);
- sort_loop = NULL;
- break;
- }
- if (strcmp(file_base, sort_base) > 0)
- break;
- }
- if (sort_loop != NULL)
- udev_list_entry_move_before(sort_loop, file_loop);
- }
- }
-
- /* parse list of files */
- udev_list_entry_foreach_safe(file_loop, file_tmp, udev_list_get_entry(&file_list)) {
- const char *file_name = udev_list_entry_get_name(file_loop);
-
- if (stat(file_name, &statbuf) == 0 && statbuf.st_size > 0)
- parse_file(rules, file_name);
- else
- info(udev, "can not read '%s'\n", file_name);
- udev_list_entry_remove(file_loop);
- }
- return retval;
-}
-
-void udev_rules_cleanup(struct udev_rules *rules)
-{
- if (rules->buf) {
- free(rules->buf);
- rules->buf = NULL;
- }
-}
-