aboutsummaryrefslogtreecommitdiff
path: root/security/tomoyo/common.c
diff options
context:
space:
mode:
Diffstat (limited to 'security/tomoyo/common.c')
-rw-r--r--security/tomoyo/common.c51
1 files changed, 44 insertions, 7 deletions
diff --git a/security/tomoyo/common.c b/security/tomoyo/common.c
index 6580ef35074..507ebf01e43 100644
--- a/security/tomoyo/common.c
+++ b/security/tomoyo/common.c
@@ -896,6 +896,12 @@ static int tomoyo_write_domain(struct tomoyo_io_buffer *head)
domain->profile = (u8) profile;
return 0;
}
+ if (sscanf(data, "use_group %u\n", &profile) == 1
+ && profile < TOMOYO_MAX_ACL_GROUPS) {
+ if (!is_delete)
+ domain->group = (u8) profile;
+ return 0;
+ }
if (!strcmp(data, "quota_exceeded")) {
domain->quota_warned = !is_delete;
return 0;
@@ -908,7 +914,7 @@ static int tomoyo_write_domain(struct tomoyo_io_buffer *head)
}
/**
- * tomoyo_set_group - Print category name.
+ * tomoyo_set_group - Print "acl_group " header keyword and category name.
*
* @head: Pointer to "struct tomoyo_io_buffer".
* @category: Category name.
@@ -918,6 +924,9 @@ static int tomoyo_write_domain(struct tomoyo_io_buffer *head)
static void tomoyo_set_group(struct tomoyo_io_buffer *head,
const char *category)
{
+ if (head->type == TOMOYO_EXCEPTIONPOLICY)
+ tomoyo_io_printf(head, "acl_group %u ",
+ head->r.acl_group_index);
tomoyo_set_string(head, category);
}
@@ -1041,17 +1050,17 @@ static bool tomoyo_print_entry(struct tomoyo_io_buffer *head,
/**
* tomoyo_read_domain2 - Read domain policy.
*
- * @head: Pointer to "struct tomoyo_io_buffer".
- * @domain: Pointer to "struct tomoyo_domain_info".
+ * @head: Pointer to "struct tomoyo_io_buffer".
+ * @list: Pointer to "struct list_head".
*
* Caller holds tomoyo_read_lock().
*
* Returns true on success, false otherwise.
*/
static bool tomoyo_read_domain2(struct tomoyo_io_buffer *head,
- struct tomoyo_domain_info *domain)
+ struct list_head *list)
{
- list_for_each_cookie(head->r.acl, &domain->acl_info_list) {
+ list_for_each_cookie(head->r.acl, list) {
struct tomoyo_acl_info *ptr =
list_entry(head->r.acl, typeof(*ptr), list);
if (!tomoyo_print_entry(head, ptr))
@@ -1085,6 +1094,8 @@ static void tomoyo_read_domain(struct tomoyo_io_buffer *head)
tomoyo_set_lf(head);
tomoyo_io_printf(head, "use_profile %u\n",
domain->profile);
+ tomoyo_io_printf(head, "use_group %u\n",
+ domain->group);
if (domain->quota_warned)
tomoyo_set_string(head, "quota_exceeded\n");
if (domain->transition_failed)
@@ -1093,7 +1104,7 @@ static void tomoyo_read_domain(struct tomoyo_io_buffer *head)
tomoyo_set_lf(head);
/* fall through */
case 1:
- if (!tomoyo_read_domain2(head, domain))
+ if (!tomoyo_read_domain2(head, &domain->acl_info_list))
return;
head->r.step++;
if (!tomoyo_set_lf(head))
@@ -1262,6 +1273,14 @@ static int tomoyo_write_exception(struct tomoyo_io_buffer *head)
};
u8 i;
param.is_delete = tomoyo_str_starts(&param.data, "delete ");
+ if (!param.is_delete && tomoyo_str_starts(&param.data, "select ") &&
+ !strcmp(param.data, "execute_only")) {
+ head->r.print_execute_only = true;
+ return 0;
+ }
+ /* Don't allow updating policies by non manager programs. */
+ if (!tomoyo_manager())
+ return -EPERM;
if (tomoyo_str_starts(&param.data, "aggregator "))
return tomoyo_write_aggregator(&param);
for (i = 0; i < TOMOYO_MAX_TRANSITION_TYPE; i++)
@@ -1270,6 +1289,14 @@ static int tomoyo_write_exception(struct tomoyo_io_buffer *head)
for (i = 0; i < TOMOYO_MAX_GROUP; i++)
if (tomoyo_str_starts(&param.data, tomoyo_group_name[i]))
return tomoyo_write_group(&param, i);
+ if (tomoyo_str_starts(&param.data, "acl_group ")) {
+ unsigned int group;
+ char *data;
+ group = simple_strtoul(param.data, &data, 10);
+ if (group < TOMOYO_MAX_ACL_GROUPS && *data++ == ' ')
+ return tomoyo_write_domain2(&tomoyo_acl_group[group],
+ data, param.is_delete);
+ }
return -EINVAL;
}
@@ -1392,6 +1419,15 @@ static void tomoyo_read_exception(struct tomoyo_io_buffer *head)
head->r.step++;
if (head->r.step < TOMOYO_MAX_POLICY + TOMOYO_MAX_GROUP)
return;
+ while (head->r.step < TOMOYO_MAX_POLICY + TOMOYO_MAX_GROUP
+ + TOMOYO_MAX_ACL_GROUPS) {
+ head->r.acl_group_index = head->r.step - TOMOYO_MAX_POLICY
+ - TOMOYO_MAX_GROUP;
+ if (!tomoyo_read_domain2(head, &tomoyo_acl_group
+ [head->r.acl_group_index]))
+ return;
+ head->r.step++;
+ }
head->r.eof = true;
}
@@ -1914,7 +1950,8 @@ int tomoyo_write_control(struct tomoyo_io_buffer *head,
return -EFAULT;
/* Don't allow updating policies by non manager programs. */
if (head->write != tomoyo_write_pid &&
- head->write != tomoyo_write_domain && !tomoyo_manager())
+ head->write != tomoyo_write_domain &&
+ head->write != tomoyo_write_exception && !tomoyo_manager())
return -EPERM;
if (mutex_lock_interruptible(&head->io_sem))
return -EINTR;