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authorTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>2011-07-08 13:21:37 +0900
committerJames Morris <jmorris@namei.org>2011-07-11 11:05:32 +1000
commit2066a36125fcbf5220990173b9d8e8bc49ad7538 (patch)
treec8ea3a6d92a8b4b68cda986601336e8e8f58553e /security/tomoyo/domain.c
parent5c4274f13819b40e726f6ee4ef13b4952cff5010 (diff)
downloadop-kernel-dev-2066a36125fcbf5220990173b9d8e8bc49ad7538.zip
op-kernel-dev-2066a36125fcbf5220990173b9d8e8bc49ad7538.tar.gz
TOMOYO: Allow using UID/GID etc. of current thread as conditions.
This patch adds support for permission checks using current thread's UID/GID etc. in addition to pathnames. 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/domain.c')
-rw-r--r--security/tomoyo/domain.c21
1 files changed, 15 insertions, 6 deletions
diff --git a/security/tomoyo/domain.c b/security/tomoyo/domain.c
index 7893127..0f02c78 100644
--- a/security/tomoyo/domain.c
+++ b/security/tomoyo/domain.c
@@ -69,7 +69,7 @@ int tomoyo_update_policy(struct tomoyo_acl_head *new_entry, const int size,
static inline bool tomoyo_same_acl_head(const struct tomoyo_acl_info *a,
const struct tomoyo_acl_info *b)
{
- return a->type == b->type;
+ return a->type == b->type && a->cond == b->cond;
}
/**
@@ -100,8 +100,13 @@ int tomoyo_update_domain(struct tomoyo_acl_info *new_entry, const int size,
struct tomoyo_acl_info *entry;
struct list_head * const list = param->list;
+ if (param->data[0]) {
+ new_entry->cond = tomoyo_get_condition(param);
+ if (!new_entry->cond)
+ return -EINVAL;
+ }
if (mutex_lock_interruptible(&tomoyo_policy_lock))
- return error;
+ goto out;
list_for_each_entry_rcu(entry, list, list) {
if (!tomoyo_same_acl_head(entry, new_entry) ||
!check_duplicate(entry, new_entry))
@@ -122,6 +127,8 @@ int tomoyo_update_domain(struct tomoyo_acl_info *new_entry, const int size,
}
}
mutex_unlock(&tomoyo_policy_lock);
+out:
+ tomoyo_put_condition(new_entry->cond);
return error;
}
@@ -148,10 +155,12 @@ retry:
list_for_each_entry_rcu(ptr, list, list) {
if (ptr->is_deleted || ptr->type != r->param_type)
continue;
- if (check_entry(r, ptr)) {
- r->granted = true;
- return;
- }
+ if (!check_entry(r, ptr))
+ continue;
+ if (!tomoyo_condition(r, ptr->cond))
+ continue;
+ r->granted = true;
+ return;
}
if (!retried) {
retried = true;
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