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udev-rules-parse: name_list -> udev_list

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This commit is contained in:
Kay Sievers 2008-10-16 20:12:16 +02:00
parent 7db6580f42
commit daa849db6f
5 changed files with 84 additions and 77 deletions
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9
udev/lib/libudev-list.c
View file

@ -165,7 +165,7 @@ void udev_list_cleanup(struct udev *udev, struct udev_list_node *list)
struct udev_list_entry *entry_loop;
struct udev_list_entry *entry_tmp;
list_entry_foreach_safe(entry_loop, entry_tmp, udev_list_get_entry(list))
udev_list_entry_foreach_safe(entry_loop, entry_tmp, udev_list_get_entry(list))
udev_list_entry_remove(entry_loop);
}
@ -175,6 +175,13 @@ void udev_list_entry_move_to_end(struct udev_list_entry *list_entry)
list_node_insert_between(&list_entry->node, list_entry->list->prev, list_entry->list);
}
void udev_list_entry_move_to_list(struct udev_list_entry *list_entry, struct udev_list_node *list)
{
list_node_remove(&list_entry->node);
list_node_insert_between(&list_entry->node, list->prev, list);
list_entry->list = list;
}
struct udev_list_entry *udev_list_get_entry(struct udev_list_node *list)
{
if (list_is_empty(list))

3
udev/lib/libudev-private.h
View file

@ -130,9 +130,10 @@ extern struct udev_list_entry *udev_list_entry_add(struct udev *udev, struct ude
extern void udev_list_entry_remove(struct udev_list_entry *entry);
extern struct udev_list_entry *udev_list_get_entry(struct udev_list_node *list);
extern void udev_list_entry_move_to_end(struct udev_list_entry *list_entry);
extern void udev_list_entry_move_to_list(struct udev_list_entry *list_entry, struct udev_list_node *list);
extern int udev_list_entry_get_flag(struct udev_list_entry *list_entry);
extern void udev_list_entry_set_flag(struct udev_list_entry *list_entry, int flag);
#define list_entry_foreach_safe(entry, tmp, first) \
#define udev_list_entry_foreach_safe(entry, tmp, first) \
for (entry = first, \
tmp = udev_list_entry_get_next(entry); \
entry != NULL; \

104
udev/udev-rules-parse.c
View file

@ -22,8 +22,9 @@
#include <stdio.h>
#include <ctype.h>
#include <unistd.h>
#include <sys/stat.h>
#include <dirent.h>
#include <errno.h>
#include <sys/stat.h>
#include "udev.h"
#include "udev-rules.h"
@ -759,26 +760,70 @@ static int parse_file(struct udev_rules *rules, const char *filename)
return retval;
}
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];
LIST_HEAD(name_list);
LIST_HEAD(sort_list);
struct name_entry *name_loop, *name_tmp;
struct name_entry *sort_loop, *sort_tmp;
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, &name_list, udev_get_rules_path(udev), ".rules");
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, &name_list, SYSCONFDIR "/udev/rules.d", ".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));
@ -789,54 +834,53 @@ int udev_rules_init(struct udev *udev, struct udev_rules *rules, int resolve_nam
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 */
list_for_each_entry_safe(sort_loop, sort_tmp, &sort_list, node) {
const char *sort_base = strrchr(sort_loop->name, '/');
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;
list_for_each_entry_safe(name_loop, name_tmp, &name_list, node) {
const char *name_base = strrchr(name_loop->name, '/');
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 (name_base == NULL)
if (file_base == NULL)
continue;
if (strcmp(name_base, sort_base) == 0) {
info(udev, "rule file '%s' already added, ignoring '%s'\n",
name_loop->name, sort_loop->name);
list_del(&sort_loop->node);
free(sort_loop);
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;
continue;
}
if (strcmp(name_base, sort_base) > 0)
if (strcmp(file_base, sort_base) > 0)
break;
}
if (sort_loop != NULL)
list_move_tail(&sort_loop->node, &name_loop->node);
udev_list_entry_move_to_list(sort_loop, &file_list);
}
}
/* 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(udev, "empty rules file '%s'\n", name_loop->name);
} else
err(udev, "could not read '%s': %m\n", name_loop->name);
list_del(&name_loop->node);
free(name_loop);
}
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
err(udev, "could not read '%s': %m\n", file_name);
udev_list_entry_remove(file_loop);
}
return retval;
}

44
udev/udev-util.c
View file

@ -122,49 +122,6 @@ void name_list_cleanup(struct udev *udev, struct list_head *name_list)
}
}
/* calls function for every file found in specified directory */
int add_matching_files(struct udev *udev, struct list_head *name_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';
name_list_add(udev, name_list, filename, 1);
}
closedir(dir);
return 0;
}
uid_t lookup_user(struct udev *udev, const char *user)
{
struct passwd *pw;
@ -200,4 +157,3 @@ extern gid_t lookup_group(struct udev *udev, const char *group)
return gid;
}

1
udev/udev.h
View file

@ -111,7 +111,6 @@ extern struct name_entry *name_list_add(struct udev *udev, struct list_head *nam
extern struct name_entry *name_list_key_add(struct udev *udev, struct list_head *name_list, const char *key, const char *value);
extern int name_list_key_remove(struct udev *udev, struct list_head *name_list, const char *key);
extern void name_list_cleanup(struct udev *udev, struct list_head *name_list);
extern int add_matching_files(struct udev *udev, struct list_head *name_list, const char *dirname, const char *suffix);
extern uid_t lookup_user(struct udev *udev, const char *user);
extern gid_t lookup_group(struct udev *udev, const char *group);