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TOMOYO: Accept manager programs which do not start with / .

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The pathname of /usr/sbin/tomoyo-editpolicy seen from Ubuntu 12.04 Live CD is
squashfs:/usr/sbin/tomoyo-editpolicy rather than /usr/sbin/tomoyo-editpolicy .
Therefore, we need to accept manager programs which do not start with / .

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <james.l.morris@oracle.com>
This commit is contained in:
Tetsuo Handa 2012-05-13 23:03:23 +09:00 committed by James Morris
parent fd75815f72
commit 77b513dda9
2 changed files with 6 additions and 21 deletions
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26
security/tomoyo/common.c
View file

@ -850,14 +850,9 @@ static int tomoyo_update_manager_entry(const char *manager,
policy_list[TOMOYO_ID_MANAGER],
};
int error = is_delete ? -ENOENT : -ENOMEM;
if (tomoyo_domain_def(manager)) {
if (!tomoyo_correct_domain(manager))
return -EINVAL;
e.is_domain = true;
} else {
if (!tomoyo_correct_path(manager))
return -EINVAL;
}
if (!tomoyo_correct_domain(manager) &&
!tomoyo_correct_word(manager))
return -EINVAL;
e.manager = tomoyo_get_name(manager);
if (e.manager) {
error = tomoyo_update_policy(&e.head, sizeof(e), &param,
@ -932,23 +927,14 @@ static bool tomoyo_manager(void)
return true;
if (!tomoyo_manage_by_non_root && (task->cred->uid || task->cred->euid))
return false;
list_for_each_entry_rcu(ptr, &tomoyo_kernel_namespace.
policy_list[TOMOYO_ID_MANAGER], head.list) {
if (!ptr->head.is_deleted && ptr->is_domain
&& !tomoyo_pathcmp(domainname, ptr->manager)) {
found = true;
break;
}
}
if (found)
return true;
exe = tomoyo_get_exe();
if (!exe)
return false;
list_for_each_entry_rcu(ptr, &tomoyo_kernel_namespace.
policy_list[TOMOYO_ID_MANAGER], head.list) {
if (!ptr->head.is_deleted && !ptr->is_domain
&& !strcmp(exe, ptr->manager->name)) {
if (!ptr->head.is_deleted &&
(!tomoyo_pathcmp(domainname, ptr->manager) ||
!strcmp(exe, ptr->manager->name))) {
found = true;
break;
}

1
security/tomoyo/common.h
View file

@ -860,7 +860,6 @@ struct tomoyo_aggregator {
/* Structure for policy manager. */
struct tomoyo_manager {
struct tomoyo_acl_head head;
bool is_domain; /* True if manager is a domainname. */
/* A path to program or a domainname. */
const struct tomoyo_path_info *manager;
};