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authorTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>2010-06-17 16:55:58 +0900
committerJames Morris <jmorris@namei.org>2010-08-02 15:34:42 +1000
commit7c2ea22e3c5463627ca98924cd65cb9e480dc29c (patch)
tree3a105a08cf75c77689bdfe890c64f9ae433748b9 /security/tomoyo/path_group.c
parent31845e8c6d3f4f26702e567c667277f9fd1f73a3 (diff)
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TOMOYO: Merge path_group and number_group.
Use common code for "path_group" and "number_group". Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security/tomoyo/path_group.c')
-rw-r--r--security/tomoyo/path_group.c122
1 files changed, 0 insertions, 122 deletions
diff --git a/security/tomoyo/path_group.c b/security/tomoyo/path_group.c
deleted file mode 100644
index 2f9f9240bf5..00000000000
--- a/security/tomoyo/path_group.c
+++ /dev/null
@@ -1,122 +0,0 @@
-/*
- * security/tomoyo/path_group.c
- *
- * Copyright (C) 2005-2009 NTT DATA CORPORATION
- */
-
-#include <linux/slab.h>
-#include "common.h"
-
-/**
- * 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_group *tomoyo_get_path_group(const char *group_name)
-{
- struct tomoyo_group *entry = NULL;
- struct tomoyo_group *group = NULL;
- const struct tomoyo_path_info *saved_group_name;
- int error = -ENOMEM;
- if (!tomoyo_correct_word(group_name))
- return NULL;
- saved_group_name = tomoyo_get_name(group_name);
- if (!saved_group_name)
- return NULL;
- entry = kzalloc(sizeof(*entry), GFP_NOFS);
- if (mutex_lock_interruptible(&tomoyo_policy_lock))
- goto out;
- 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);
- error = 0;
- break;
- }
- if (error && tomoyo_memory_ok(entry)) {
- INIT_LIST_HEAD(&entry->member_list);
- entry->group_name = saved_group_name;
- saved_group_name = NULL;
- atomic_set(&entry->users, 1);
- list_add_tail_rcu(&entry->list,
- &tomoyo_group_list[TOMOYO_PATH_GROUP]);
- group = entry;
- entry = NULL;
- error = 0;
- }
- mutex_unlock(&tomoyo_policy_lock);
- out:
- tomoyo_put_name(saved_group_name);
- kfree(entry);
- 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.
- *
- * @data: String to parse.
- * @is_delete: True if it is a delete request.
- *
- * Returns 0 on success, nagative value otherwise.
- */
-int tomoyo_write_path_group_policy(char *data, const bool is_delete)
-{
- 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])
- return -EINVAL;
- group = tomoyo_get_path_group(w[0]);
- if (!group)
- return -ENOMEM;
- e.member_name = tomoyo_get_name(w[1]);
- if (!e.member_name)
- goto out;
- 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_group(group);
- return error;
-}
-
-/**
- * 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".
- *
- * 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_group *group)
-{
- struct tomoyo_path_group *member;
- bool matched = false;
- list_for_each_entry_rcu(member, &group->member_list, head.list) {
- if (member->head.is_deleted)
- continue;
- if (!tomoyo_path_matches_pattern(pathname,
- member->member_name))
- continue;
- matched = true;
- break;
- }
- return matched;
-}