#include <linux/slab.h>
#include "common.h"
-/* The list for "struct ccs_path_group". */
-LIST_HEAD(tomoyo_path_group_list);
/**
- * tomoyo_get_path_group - Allocate memory for "struct tomoyo_path_group".
+ * tomoyo_get_group - Allocate memory for "struct tomoyo_path_group".
*
* @group_name: The name of pathname group.
*
* Returns pointer to "struct tomoyo_path_group" on success, NULL otherwise.
*/
-struct tomoyo_path_group *tomoyo_get_path_group(const char *group_name)
+struct tomoyo_group *tomoyo_get_path_group(const char *group_name)
{
- struct tomoyo_path_group *entry = NULL;
- struct tomoyo_path_group *group = NULL;
+ struct tomoyo_group *entry = NULL;
+ struct tomoyo_group *group = NULL;
const struct tomoyo_path_info *saved_group_name;
int error = -ENOMEM;
- if (!tomoyo_is_correct_path(group_name, 0, 0, 0) ||
- !group_name[0])
+ if (!tomoyo_correct_word(group_name))
return NULL;
saved_group_name = tomoyo_get_name(group_name);
if (!saved_group_name)
entry = kzalloc(sizeof(*entry), GFP_NOFS);
if (mutex_lock_interruptible(&tomoyo_policy_lock))
goto out;
- list_for_each_entry_rcu(group, &tomoyo_path_group_list, list) {
+ list_for_each_entry_rcu(group, &tomoyo_group_list[TOMOYO_PATH_GROUP],
+ list) {
if (saved_group_name != group->group_name)
continue;
atomic_inc(&group->users);
entry->group_name = saved_group_name;
saved_group_name = NULL;
atomic_set(&entry->users, 1);
- list_add_tail_rcu(&entry->list, &tomoyo_path_group_list);
+ list_add_tail_rcu(&entry->list,
+ &tomoyo_group_list[TOMOYO_PATH_GROUP]);
group = entry;
entry = NULL;
error = 0;
return !error ? group : NULL;
}
+static bool tomoyo_same_path_group(const struct tomoyo_acl_head *a,
+ const struct tomoyo_acl_head *b)
+{
+ return container_of(a, struct tomoyo_path_group, head)
+ ->member_name ==
+ container_of(b, struct tomoyo_path_group, head)
+ ->member_name;
+}
+
/**
* tomoyo_write_path_group_policy - Write "struct tomoyo_path_group" list.
*
*/
int tomoyo_write_path_group_policy(char *data, const bool is_delete)
{
- struct tomoyo_path_group *group;
- struct tomoyo_path_group_member *member;
- struct tomoyo_path_group_member e = { };
+ struct tomoyo_group *group;
+ struct tomoyo_path_group e = { };
int error = is_delete ? -ENOENT : -ENOMEM;
char *w[2];
if (!tomoyo_tokenize(data, w, sizeof(w)) || !w[1][0])
e.member_name = tomoyo_get_name(w[1]);
if (!e.member_name)
goto out;
- if (mutex_lock_interruptible(&tomoyo_policy_lock))
- goto out;
- list_for_each_entry_rcu(member, &group->member_list, list) {
- if (member->member_name != e.member_name)
- continue;
- member->is_deleted = is_delete;
- error = 0;
- break;
- }
- if (!is_delete && error) {
- struct tomoyo_path_group_member *entry =
- tomoyo_commit_ok(&e, sizeof(e));
- if (entry) {
- list_add_tail_rcu(&entry->list, &group->member_list);
- error = 0;
- }
- }
- mutex_unlock(&tomoyo_policy_lock);
+ error = tomoyo_update_policy(&e.head, sizeof(e), is_delete,
+ &group->member_list,
+ tomoyo_same_path_group);
out:
tomoyo_put_name(e.member_name);
- tomoyo_put_path_group(group);
+ tomoyo_put_group(group);
return error;
}
-/**
- * tomoyo_read_path_group_policy - Read "struct tomoyo_path_group" list.
- *
- * @head: Pointer to "struct tomoyo_io_buffer".
- *
- * Returns true on success, false otherwise.
- *
- * Caller holds tomoyo_read_lock().
- */
-bool tomoyo_read_path_group_policy(struct tomoyo_io_buffer *head)
-{
- struct list_head *gpos;
- struct list_head *mpos;
- list_for_each_cookie(gpos, head->read_var1, &tomoyo_path_group_list) {
- struct tomoyo_path_group *group;
- group = list_entry(gpos, struct tomoyo_path_group, list);
- list_for_each_cookie(mpos, head->read_var2,
- &group->member_list) {
- struct tomoyo_path_group_member *member;
- member = list_entry(mpos,
- struct tomoyo_path_group_member,
- list);
- if (member->is_deleted)
- continue;
- if (!tomoyo_io_printf(head, TOMOYO_KEYWORD_PATH_GROUP
- "%s %s\n",
- group->group_name->name,
- member->member_name->name))
- return false;
- }
- }
- return true;
-}
-
/**
* tomoyo_path_matches_group - Check whether the given pathname matches members of the given pathname group.
*
* @pathname: The name of pathname.
* @group: Pointer to "struct tomoyo_path_group".
- * @may_use_pattern: True if wild card is permitted.
*
* Returns true if @pathname matches pathnames in @group, false otherwise.
*
* Caller holds tomoyo_read_lock().
*/
bool tomoyo_path_matches_group(const struct tomoyo_path_info *pathname,
- const struct tomoyo_path_group *group,
- const bool may_use_pattern)
+ const struct tomoyo_group *group)
{
- struct tomoyo_path_group_member *member;
+ struct tomoyo_path_group *member;
bool matched = false;
- list_for_each_entry_rcu(member, &group->member_list, list) {
- if (member->is_deleted)
+ list_for_each_entry_rcu(member, &group->member_list, head.list) {
+ if (member->head.is_deleted)
continue;
- if (!member->member_name->is_patterned) {
- if (tomoyo_pathcmp(pathname, member->member_name))
- continue;
- } else if (may_use_pattern) {
- if (!tomoyo_path_matches_pattern(pathname,
- member->member_name))
- continue;
- } else
+ if (!tomoyo_path_matches_pattern(pathname,
+ member->member_name))
continue;
matched = true;
break;