diff options
Diffstat (limited to 'ANDROID_3.4.5/security/tomoyo/group.c')
| -rw-r--r-- | ANDROID_3.4.5/security/tomoyo/group.c | 198 |
1 files changed, 0 insertions, 198 deletions
diff --git a/ANDROID_3.4.5/security/tomoyo/group.c b/ANDROID_3.4.5/security/tomoyo/group.c deleted file mode 100644 index 50092534..00000000 --- a/ANDROID_3.4.5/security/tomoyo/group.c +++ /dev/null @@ -1,198 +0,0 @@ -/* - * security/tomoyo/group.c - * - * Copyright (C) 2005-2011 NTT DATA CORPORATION - */ - -#include <linux/slab.h> -#include "common.h" - -/** - * tomoyo_same_path_group - Check for duplicated "struct tomoyo_path_group" entry. - * - * @a: Pointer to "struct tomoyo_acl_head". - * @b: Pointer to "struct tomoyo_acl_head". - * - * Returns true if @a == @b, false otherwise. - */ -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_same_number_group - Check for duplicated "struct tomoyo_number_group" entry. - * - * @a: Pointer to "struct tomoyo_acl_head". - * @b: Pointer to "struct tomoyo_acl_head". - * - * Returns true if @a == @b, false otherwise. - */ -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_same_address_group - Check for duplicated "struct tomoyo_address_group" entry. - * - * @a: Pointer to "struct tomoyo_acl_head". - * @b: Pointer to "struct tomoyo_acl_head". - * - * Returns true if @a == @b, false otherwise. - */ -static bool tomoyo_same_address_group(const struct tomoyo_acl_head *a, - const struct tomoyo_acl_head *b) -{ - const struct tomoyo_address_group *p1 = container_of(a, typeof(*p1), - head); - const struct tomoyo_address_group *p2 = container_of(b, typeof(*p2), - head); - - return tomoyo_same_ipaddr_union(&p1->address, &p2->address); -} - -/** - * tomoyo_write_group - Write "struct tomoyo_path_group"/"struct tomoyo_number_group"/"struct tomoyo_address_group" list. - * - * @param: Pointer to "struct tomoyo_acl_param". - * @type: Type of this group. - * - * Returns 0 on success, negative value otherwise. - */ -int tomoyo_write_group(struct tomoyo_acl_param *param, const u8 type) -{ - struct tomoyo_group *group = tomoyo_get_group(param, type); - int error = -EINVAL; - if (!group) - return -ENOMEM; - param->list = &group->member_list; - if (type == TOMOYO_PATH_GROUP) { - struct tomoyo_path_group e = { }; - e.member_name = tomoyo_get_name(tomoyo_read_token(param)); - if (!e.member_name) { - error = -ENOMEM; - goto out; - } - error = tomoyo_update_policy(&e.head, sizeof(e), param, - tomoyo_same_path_group); - tomoyo_put_name(e.member_name); - } else if (type == TOMOYO_NUMBER_GROUP) { - struct tomoyo_number_group e = { }; - if (param->data[0] == '@' || - !tomoyo_parse_number_union(param, &e.number)) - goto out; - error = tomoyo_update_policy(&e.head, sizeof(e), param, - tomoyo_same_number_group); - /* - * tomoyo_put_number_union() is not needed because - * param->data[0] != '@'. - */ - } else { - struct tomoyo_address_group e = { }; - - if (param->data[0] == '@' || - !tomoyo_parse_ipaddr_union(param, &e.address)) - goto out; - error = tomoyo_update_policy(&e.head, sizeof(e), param, - tomoyo_same_address_group); - } -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; -} - -/** - * tomoyo_address_matches_group - Check whether the given address matches members of the given address group. - * - * @is_ipv6: True if @address is an IPv6 address. - * @address: An IPv4 or IPv6 address. - * @group: Pointer to "struct tomoyo_address_group". - * - * Returns true if @address matches addresses in @group group, false otherwise. - * - * Caller holds tomoyo_read_lock(). - */ -bool tomoyo_address_matches_group(const bool is_ipv6, const __be32 *address, - const struct tomoyo_group *group) -{ - struct tomoyo_address_group *member; - bool matched = false; - const u8 size = is_ipv6 ? 16 : 4; - - list_for_each_entry_rcu(member, &group->member_list, head.list) { - if (member->head.is_deleted) - continue; - if (member->address.is_ipv6 != is_ipv6) - continue; - if (memcmp(&member->address.ip[0], address, size) > 0 || - memcmp(address, &member->address.ip[1], size) > 0) - continue; - matched = true; - break; - } - return matched; -} |