484ca79c65
Commit c9e69318 "TOMOYO: Allow wildcard for execute permission." changed execute permission and domainname to accept wildcards. But tomoyo_find_next_domain() was using pathname passed to execve() rather than pathname specified by the execute permission. As a result, processes were not able to transit to domains which contain wildcards in their domainnames. This patch passes pathname specified by the execute permission back to tomoyo_find_next_domain() so that processes can transit to domains which contain wildcards in their domainnames. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
130 lines
3.6 KiB
C
130 lines
3.6 KiB
C
/*
|
|
* security/tomoyo/group.c
|
|
*
|
|
* Copyright (C) 2005-2010 NTT DATA CORPORATION
|
|
*/
|
|
|
|
#include <linux/slab.h>
|
|
#include "common.h"
|
|
|
|
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;
|
|
}
|
|
|
|
static bool tomoyo_same_number_group(const struct tomoyo_acl_head *a,
|
|
const struct tomoyo_acl_head *b)
|
|
{
|
|
return !memcmp(&container_of(a, struct tomoyo_number_group, head)
|
|
->number,
|
|
&container_of(b, struct tomoyo_number_group, head)
|
|
->number,
|
|
sizeof(container_of(a, struct tomoyo_number_group, head)
|
|
->number));
|
|
}
|
|
|
|
/**
|
|
* tomoyo_write_group - Write "struct tomoyo_path_group"/"struct tomoyo_number_group" list.
|
|
*
|
|
* @data: String to parse.
|
|
* @is_delete: True if it is a delete request.
|
|
* @type: Type of this group.
|
|
*
|
|
* Returns 0 on success, negative value otherwise.
|
|
*/
|
|
int tomoyo_write_group(char *data, const bool is_delete, const u8 type)
|
|
{
|
|
struct tomoyo_group *group;
|
|
struct list_head *member;
|
|
char *w[2];
|
|
int error = -EINVAL;
|
|
if (!tomoyo_tokenize(data, w, sizeof(w)) || !w[1][0])
|
|
return -EINVAL;
|
|
group = tomoyo_get_group(w[0], type);
|
|
if (!group)
|
|
return -ENOMEM;
|
|
member = &group->member_list;
|
|
if (type == TOMOYO_PATH_GROUP) {
|
|
struct tomoyo_path_group e = { };
|
|
e.member_name = tomoyo_get_name(w[1]);
|
|
if (!e.member_name) {
|
|
error = -ENOMEM;
|
|
goto out;
|
|
}
|
|
error = tomoyo_update_policy(&e.head, sizeof(e), is_delete,
|
|
member, tomoyo_same_path_group);
|
|
tomoyo_put_name(e.member_name);
|
|
} else if (type == TOMOYO_NUMBER_GROUP) {
|
|
struct tomoyo_number_group e = { };
|
|
if (w[1][0] == '@'
|
|
|| !tomoyo_parse_number_union(w[1], &e.number)
|
|
|| e.number.values[0] > e.number.values[1])
|
|
goto out;
|
|
error = tomoyo_update_policy(&e.head, sizeof(e), is_delete,
|
|
member, tomoyo_same_number_group);
|
|
/*
|
|
* tomoyo_put_number_union() is not needed because
|
|
* w[1][0] != '@'.
|
|
*/
|
|
}
|
|
out:
|
|
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 matched member's pathname if @pathname matches pathnames in @group,
|
|
* NULL otherwise.
|
|
*
|
|
* Caller holds tomoyo_read_lock().
|
|
*/
|
|
const struct tomoyo_path_info *
|
|
tomoyo_path_matches_group(const struct tomoyo_path_info *pathname,
|
|
const struct tomoyo_group *group)
|
|
{
|
|
struct tomoyo_path_group *member;
|
|
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;
|
|
return member->member_name;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* tomoyo_number_matches_group - Check whether the given number matches members of the given number group.
|
|
*
|
|
* @min: Min number.
|
|
* @max: Max number.
|
|
* @group: Pointer to "struct tomoyo_number_group".
|
|
*
|
|
* Returns true if @min and @max partially overlaps @group, false otherwise.
|
|
*
|
|
* Caller holds tomoyo_read_lock().
|
|
*/
|
|
bool tomoyo_number_matches_group(const unsigned long min,
|
|
const unsigned long max,
|
|
const struct tomoyo_group *group)
|
|
{
|
|
struct tomoyo_number_group *member;
|
|
bool matched = false;
|
|
list_for_each_entry_rcu(member, &group->member_list, head.list) {
|
|
if (member->head.is_deleted)
|
|
continue;
|
|
if (min > member->number.values[1] ||
|
|
max < member->number.values[0])
|
|
continue;
|
|
matched = true;
|
|
break;
|
|
}
|
|
return matched;
|
|
}
|