aboutsummaryrefslogtreecommitdiffstats
path: root/security/tomoyo
diff options
context:
space:
mode:
Diffstat (limited to 'security/tomoyo')
-rw-r--r--security/tomoyo/common.c35
-rw-r--r--security/tomoyo/common.h39
-rw-r--r--security/tomoyo/domain.c184
-rw-r--r--security/tomoyo/file.c107
-rw-r--r--security/tomoyo/number_group.c45
-rw-r--r--security/tomoyo/path_group.c32
6 files changed, 190 insertions, 252 deletions
diff --git a/security/tomoyo/common.c b/security/tomoyo/common.c
index 7bfad45..4ee47af 100644
--- a/security/tomoyo/common.c
+++ b/security/tomoyo/common.c
@@ -469,6 +469,15 @@ static int tomoyo_read_profile(struct tomoyo_io_buffer *head)
*/
LIST_HEAD(tomoyo_policy_manager_list);
+static bool tomoyo_same_manager_entry(const struct tomoyo_acl_head *a,
+ const struct tomoyo_acl_head *b)
+{
+ return container_of(a, struct tomoyo_policy_manager_entry, head)
+ ->manager ==
+ container_of(b, struct tomoyo_policy_manager_entry, head)
+ ->manager;
+}
+
/**
* tomoyo_update_manager_entry - Add a manager entry.
*
@@ -482,9 +491,8 @@ LIST_HEAD(tomoyo_policy_manager_list);
static int tomoyo_update_manager_entry(const char *manager,
const bool is_delete)
{
- struct tomoyo_policy_manager_entry *ptr;
struct tomoyo_policy_manager_entry e = { };
- int error = is_delete ? -ENOENT : -ENOMEM;
+ int error;
if (tomoyo_is_domain_def(manager)) {
if (!tomoyo_is_correct_domain(manager))
@@ -497,26 +505,9 @@ static int tomoyo_update_manager_entry(const char *manager,
e.manager = tomoyo_get_name(manager);
if (!e.manager)
return -ENOMEM;
- if (mutex_lock_interruptible(&tomoyo_policy_lock))
- goto out;
- list_for_each_entry_rcu(ptr, &tomoyo_policy_manager_list, head.list) {
- if (ptr->manager != e.manager)
- continue;
- ptr->head.is_deleted = is_delete;
- error = 0;
- break;
- }
- if (!is_delete && error) {
- struct tomoyo_policy_manager_entry *entry =
- tomoyo_commit_ok(&e, sizeof(e));
- if (entry) {
- list_add_tail_rcu(&entry->head.list,
- &tomoyo_policy_manager_list);
- error = 0;
- }
- }
- mutex_unlock(&tomoyo_policy_lock);
- out:
+ error = tomoyo_update_policy(&e.head, sizeof(e), is_delete,
+ &tomoyo_policy_manager_list,
+ tomoyo_same_manager_entry);
tomoyo_put_name(e.manager);
return error;
}
diff --git a/security/tomoyo/common.h b/security/tomoyo/common.h
index 0ab6e86..c8ab755 100644
--- a/security/tomoyo/common.h
+++ b/security/tomoyo/common.h
@@ -913,6 +913,12 @@ int tomoyo_update_domain(struct tomoyo_acl_info *new_entry, const int size,
bool (*merge_duplicate) (struct tomoyo_acl_info *,
struct tomoyo_acl_info *,
const bool));
+int tomoyo_update_policy(struct tomoyo_acl_head *new_entry, const int size,
+ bool is_delete, struct list_head *list,
+ bool (*check_duplicate) (const struct tomoyo_acl_head
+ *,
+ const struct tomoyo_acl_head
+ *));
/********** External variable definitions. **********/
@@ -1042,39 +1048,6 @@ static inline bool tomoyo_is_same_number_union
p1->max_type == p2->max_type && p1->is_group == p2->is_group;
}
-static inline bool tomoyo_is_same_domain_initializer_entry
-(const struct tomoyo_domain_initializer_entry *p1,
- const struct tomoyo_domain_initializer_entry *p2)
-{
- return p1->is_not == p2->is_not && p1->is_last_name == p2->is_last_name
- && p1->domainname == p2->domainname
- && p1->program == p2->program;
-}
-
-static inline bool tomoyo_is_same_domain_keeper_entry
-(const struct tomoyo_domain_keeper_entry *p1,
- const struct tomoyo_domain_keeper_entry *p2)
-{
- return p1->is_not == p2->is_not && p1->is_last_name == p2->is_last_name
- && p1->domainname == p2->domainname
- && p1->program == p2->program;
-}
-
-static inline bool tomoyo_is_same_aggregator_entry
-(const struct tomoyo_aggregator_entry *p1,
- const struct tomoyo_aggregator_entry *p2)
-{
- return p1->original_name == p2->original_name &&
- p1->aggregated_name == p2->aggregated_name;
-}
-
-static inline bool tomoyo_is_same_alias_entry
-(const struct tomoyo_alias_entry *p1, const struct tomoyo_alias_entry *p2)
-{
- return p1->original_name == p2->original_name &&
- p1->aliased_name == p2->aliased_name;
-}
-
/**
* list_for_each_cookie - iterate over a list with cookie.
* @pos: the &struct list_head to use as a loop cursor.
diff --git a/security/tomoyo/domain.c b/security/tomoyo/domain.c
index 60297da..fe621af 100644
--- a/security/tomoyo/domain.c
+++ b/security/tomoyo/domain.c
@@ -16,6 +16,49 @@
struct tomoyo_domain_info tomoyo_kernel_domain;
/**
+ * tomoyo_update_policy - Update an entry for exception policy.
+ *
+ * @new_entry: Pointer to "struct tomoyo_acl_info".
+ * @size: Size of @new_entry in bytes.
+ * @is_delete: True if it is a delete request.
+ * @list: Pointer to "struct list_head".
+ * @check_duplicate: Callback function to find duplicated entry.
+ *
+ * Returns 0 on success, negative value otherwise.
+ *
+ * Caller holds tomoyo_read_lock().
+ */
+int tomoyo_update_policy(struct tomoyo_acl_head *new_entry, const int size,
+ bool is_delete, struct list_head *list,
+ bool (*check_duplicate) (const struct tomoyo_acl_head
+ *,
+ const struct tomoyo_acl_head
+ *))
+{
+ int error = is_delete ? -ENOENT : -ENOMEM;
+ struct tomoyo_acl_head *entry;
+
+ if (mutex_lock_interruptible(&tomoyo_policy_lock))
+ return -ENOMEM;
+ list_for_each_entry_rcu(entry, list, list) {
+ if (!check_duplicate(entry, new_entry))
+ continue;
+ entry->is_deleted = is_delete;
+ error = 0;
+ break;
+ }
+ if (error && !is_delete) {
+ entry = tomoyo_commit_ok(new_entry, size);
+ if (entry) {
+ list_add_tail_rcu(&entry->list, list);
+ error = 0;
+ }
+ }
+ mutex_unlock(&tomoyo_policy_lock);
+ return error;
+}
+
+/**
* tomoyo_update_domain - Update an entry for domain policy.
*
* @new_entry: Pointer to "struct tomoyo_acl_info".
@@ -161,6 +204,20 @@ const char *tomoyo_get_last_name(const struct tomoyo_domain_info *domain)
*/
LIST_HEAD(tomoyo_domain_initializer_list);
+static bool tomoyo_same_domain_initializer_entry(const struct tomoyo_acl_head *
+ a,
+ const struct tomoyo_acl_head *
+ b)
+{
+ const struct tomoyo_domain_initializer_entry *p1 =
+ container_of(a, typeof(*p1), head);
+ const struct tomoyo_domain_initializer_entry *p2 =
+ container_of(b, typeof(*p2), head);
+ return p1->is_not == p2->is_not && p1->is_last_name == p2->is_last_name
+ && p1->domainname == p2->domainname
+ && p1->program == p2->program;
+}
+
/**
* tomoyo_update_domain_initializer_entry - Update "struct tomoyo_domain_initializer_entry" list.
*
@@ -178,7 +235,6 @@ static int tomoyo_update_domain_initializer_entry(const char *domainname,
const bool is_not,
const bool is_delete)
{
- struct tomoyo_domain_initializer_entry *ptr;
struct tomoyo_domain_initializer_entry e = { .is_not = is_not };
int error = is_delete ? -ENOENT : -ENOMEM;
@@ -197,26 +253,9 @@ static int tomoyo_update_domain_initializer_entry(const char *domainname,
e.program = tomoyo_get_name(program);
if (!e.program)
goto out;
- if (mutex_lock_interruptible(&tomoyo_policy_lock))
- goto out;
- list_for_each_entry_rcu(ptr, &tomoyo_domain_initializer_list,
- head.list) {
- if (!tomoyo_is_same_domain_initializer_entry(ptr, &e))
- continue;
- ptr->head.is_deleted = is_delete;
- error = 0;
- break;
- }
- if (!is_delete && error) {
- struct tomoyo_domain_initializer_entry *entry =
- tomoyo_commit_ok(&e, sizeof(e));
- if (entry) {
- list_add_tail_rcu(&entry->head.list,
- &tomoyo_domain_initializer_list);
- error = 0;
- }
- }
- mutex_unlock(&tomoyo_policy_lock);
+ error = tomoyo_update_policy(&e.head, sizeof(e), is_delete,
+ &tomoyo_domain_initializer_list,
+ tomoyo_same_domain_initializer_entry);
out:
tomoyo_put_name(e.domainname);
tomoyo_put_name(e.program);
@@ -373,6 +412,18 @@ static bool tomoyo_is_domain_initializer(const struct tomoyo_path_info *
*/
LIST_HEAD(tomoyo_domain_keeper_list);
+static bool tomoyo_same_domain_keeper_entry(const struct tomoyo_acl_head *a,
+ const struct tomoyo_acl_head *b)
+{
+ const struct tomoyo_domain_keeper_entry *p1 =
+ container_of(a, typeof(*p1), head);
+ const struct tomoyo_domain_keeper_entry *p2 =
+ container_of(b, typeof(*p2), head);
+ return p1->is_not == p2->is_not && p1->is_last_name == p2->is_last_name
+ && p1->domainname == p2->domainname
+ && p1->program == p2->program;
+}
+
/**
* tomoyo_update_domain_keeper_entry - Update "struct tomoyo_domain_keeper_entry" list.
*
@@ -390,7 +441,6 @@ static int tomoyo_update_domain_keeper_entry(const char *domainname,
const bool is_not,
const bool is_delete)
{
- struct tomoyo_domain_keeper_entry *ptr;
struct tomoyo_domain_keeper_entry e = { .is_not = is_not };
int error = is_delete ? -ENOENT : -ENOMEM;
@@ -409,25 +459,9 @@ static int tomoyo_update_domain_keeper_entry(const char *domainname,
e.domainname = tomoyo_get_name(domainname);
if (!e.domainname)
goto out;
- if (mutex_lock_interruptible(&tomoyo_policy_lock))
- goto out;
- list_for_each_entry_rcu(ptr, &tomoyo_domain_keeper_list, head.list) {
- if (!tomoyo_is_same_domain_keeper_entry(ptr, &e))
- continue;
- ptr->head.is_deleted = is_delete;
- error = 0;
- break;
- }
- if (!is_delete && error) {
- struct tomoyo_domain_keeper_entry *entry =
- tomoyo_commit_ok(&e, sizeof(e));
- if (entry) {
- list_add_tail_rcu(&entry->head.list,
- &tomoyo_domain_keeper_list);
- error = 0;
- }
- }
- mutex_unlock(&tomoyo_policy_lock);
+ error = tomoyo_update_policy(&e.head, sizeof(e), is_delete,
+ &tomoyo_domain_keeper_list,
+ tomoyo_same_domain_keeper_entry);
out:
tomoyo_put_name(e.domainname);
tomoyo_put_name(e.program);
@@ -565,6 +599,17 @@ static bool tomoyo_is_domain_keeper(const struct tomoyo_path_info *domainname,
*/
LIST_HEAD(tomoyo_aggregator_list);
+static bool tomoyo_same_aggregator_entry(const struct tomoyo_acl_head *a,
+ const struct tomoyo_acl_head *b)
+{
+ const struct tomoyo_aggregator_entry *p1 = container_of(a, typeof(*p1),
+ head);
+ const struct tomoyo_aggregator_entry *p2 = container_of(b, typeof(*p2),
+ head);
+ return p1->original_name == p2->original_name &&
+ p1->aggregated_name == p2->aggregated_name;
+}
+
/**
* tomoyo_update_aggregator_entry - Update "struct tomoyo_aggregator_entry" list.
*
@@ -580,7 +625,6 @@ static int tomoyo_update_aggregator_entry(const char *original_name,
const char *aggregated_name,
const bool is_delete)
{
- struct tomoyo_aggregator_entry *ptr;
struct tomoyo_aggregator_entry e = { };
int error = is_delete ? -ENOENT : -ENOMEM;
@@ -592,25 +636,9 @@ static int tomoyo_update_aggregator_entry(const char *original_name,
if (!e.original_name || !e.aggregated_name ||
e.aggregated_name->is_patterned) /* No patterns allowed. */
goto out;
- if (mutex_lock_interruptible(&tomoyo_policy_lock))
- goto out;
- list_for_each_entry_rcu(ptr, &tomoyo_aggregator_list, head.list) {
- if (!tomoyo_is_same_aggregator_entry(ptr, &e))
- continue;
- ptr->head.is_deleted = is_delete;
- error = 0;
- break;
- }
- if (!is_delete && error) {
- struct tomoyo_aggregator_entry *entry =
- tomoyo_commit_ok(&e, sizeof(e));
- if (entry) {
- list_add_tail_rcu(&entry->head.list,
- &tomoyo_aggregator_list);
- error = 0;
- }
- }
- mutex_unlock(&tomoyo_policy_lock);
+ error = tomoyo_update_policy(&e.head, sizeof(e), is_delete,
+ &tomoyo_aggregator_list,
+ tomoyo_same_aggregator_entry);
out:
tomoyo_put_name(e.original_name);
tomoyo_put_name(e.aggregated_name);
@@ -699,6 +727,17 @@ int tomoyo_write_aggregator_policy(char *data, const bool is_delete)
*/
LIST_HEAD(tomoyo_alias_list);
+static bool tomoyo_same_alias_entry(const struct tomoyo_acl_head *a,
+ const struct tomoyo_acl_head *b)
+{
+ const struct tomoyo_alias_entry *p1 = container_of(a, typeof(*p1),
+ head);
+ const struct tomoyo_alias_entry *p2 = container_of(b, typeof(*p2),
+ head);
+ return p1->original_name == p2->original_name &&
+ p1->aliased_name == p2->aliased_name;
+}
+
/**
* tomoyo_update_alias_entry - Update "struct tomoyo_alias_entry" list.
*
@@ -714,7 +753,6 @@ static int tomoyo_update_alias_entry(const char *original_name,
const char *aliased_name,
const bool is_delete)
{
- struct tomoyo_alias_entry *ptr;
struct tomoyo_alias_entry e = { };
int error = is_delete ? -ENOENT : -ENOMEM;
@@ -726,25 +764,9 @@ static int tomoyo_update_alias_entry(const char *original_name,
if (!e.original_name || !e.aliased_name ||
e.original_name->is_patterned || e.aliased_name->is_patterned)
goto out; /* No patterns allowed. */
- if (mutex_lock_interruptible(&tomoyo_policy_lock))
- goto out;
- list_for_each_entry_rcu(ptr, &tomoyo_alias_list, head.list) {
- if (!tomoyo_is_same_alias_entry(ptr, &e))
- continue;
- ptr->head.is_deleted = is_delete;
- error = 0;
- break;
- }
- if (!is_delete && error) {
- struct tomoyo_alias_entry *entry =
- tomoyo_commit_ok(&e, sizeof(e));
- if (entry) {
- list_add_tail_rcu(&entry->head.list,
- &tomoyo_alias_list);
- error = 0;
- }
- }
- mutex_unlock(&tomoyo_policy_lock);
+ error = tomoyo_update_policy(&e.head, sizeof(e), is_delete,
+ &tomoyo_alias_list,
+ tomoyo_same_alias_entry);
out:
tomoyo_put_name(e.original_name);
tomoyo_put_name(e.aliased_name);
diff --git a/security/tomoyo/file.c b/security/tomoyo/file.c
index 09436d1..8015719 100644
--- a/security/tomoyo/file.c
+++ b/security/tomoyo/file.c
@@ -253,6 +253,15 @@ static int tomoyo_update_path_acl(const u8 type, const char *filename,
*/
LIST_HEAD(tomoyo_globally_readable_list);
+static bool tomoyo_same_globally_readable(const struct tomoyo_acl_head *a,
+ const struct tomoyo_acl_head *b)
+{
+ return container_of(a, struct tomoyo_globally_readable_file_entry,
+ head)->filename ==
+ container_of(b, struct tomoyo_globally_readable_file_entry,
+ head)->filename;
+}
+
/**
* tomoyo_update_globally_readable_entry - Update "struct tomoyo_globally_readable_file_entry" list.
*
@@ -266,36 +275,17 @@ LIST_HEAD(tomoyo_globally_readable_list);
static int tomoyo_update_globally_readable_entry(const char *filename,
const bool is_delete)
{
- struct tomoyo_globally_readable_file_entry *ptr;
struct tomoyo_globally_readable_file_entry e = { };
- int error = is_delete ? -ENOENT : -ENOMEM;
+ int error;
if (!tomoyo_is_correct_word(filename))
return -EINVAL;
e.filename = tomoyo_get_name(filename);
if (!e.filename)
return -ENOMEM;
- if (mutex_lock_interruptible(&tomoyo_policy_lock))
- goto out;
- list_for_each_entry_rcu(ptr, &tomoyo_globally_readable_list,
- head.list) {
- if (ptr->filename != e.filename)
- continue;
- ptr->head.is_deleted = is_delete;
- error = 0;
- break;
- }
- if (!is_delete && error) {
- struct tomoyo_globally_readable_file_entry *entry =
- tomoyo_commit_ok(&e, sizeof(e));
- if (entry) {
- list_add_tail_rcu(&entry->head.list,
- &tomoyo_globally_readable_list);
- error = 0;
- }
- }
- mutex_unlock(&tomoyo_policy_lock);
- out:
+ error = tomoyo_update_policy(&e.head, sizeof(e), is_delete,
+ &tomoyo_globally_readable_list,
+ tomoyo_same_globally_readable);
tomoyo_put_name(e.filename);
return error;
}
@@ -402,6 +392,13 @@ bool tomoyo_read_globally_readable_policy(struct tomoyo_io_buffer *head)
*/
LIST_HEAD(tomoyo_pattern_list);
+static bool tomoyo_same_pattern(const struct tomoyo_acl_head *a,
+ const struct tomoyo_acl_head *b)
+{
+ return container_of(a, struct tomoyo_pattern_entry, head)->pattern ==
+ container_of(b, struct tomoyo_pattern_entry, head)->pattern;
+}
+
/**
* tomoyo_update_file_pattern_entry - Update "struct tomoyo_pattern_entry" list.
*
@@ -415,35 +412,17 @@ LIST_HEAD(tomoyo_pattern_list);
static int tomoyo_update_file_pattern_entry(const char *pattern,
const bool is_delete)
{
- struct tomoyo_pattern_entry *ptr;
struct tomoyo_pattern_entry e = { };
- int error = is_delete ? -ENOENT : -ENOMEM;
+ int error;
if (!tomoyo_is_correct_word(pattern))
return -EINVAL;
e.pattern = tomoyo_get_name(pattern);
if (!e.pattern)
- return error;
- if (mutex_lock_interruptible(&tomoyo_policy_lock))
- goto out;
- list_for_each_entry_rcu(ptr, &tomoyo_pattern_list, head.list) {
- if (e.pattern != ptr->pattern)
- continue;
- ptr->head.is_deleted = is_delete;
- error = 0;
- break;
- }
- if (!is_delete && error) {
- struct tomoyo_pattern_entry *entry =
- tomoyo_commit_ok(&e, sizeof(e));
- if (entry) {
- list_add_tail_rcu(&entry->head.list,
- &tomoyo_pattern_list);
- error = 0;
- }
- }
- mutex_unlock(&tomoyo_policy_lock);
- out:
+ return -ENOMEM;
+ error = tomoyo_update_policy(&e.head, sizeof(e), is_delete,
+ &tomoyo_pattern_list,
+ tomoyo_same_pattern);
tomoyo_put_name(e.pattern);
return error;
}
@@ -553,6 +532,14 @@ bool tomoyo_read_file_pattern(struct tomoyo_io_buffer *head)
*/
LIST_HEAD(tomoyo_no_rewrite_list);
+static bool tomoyo_same_no_rewrite(const struct tomoyo_acl_head *a,
+ const struct tomoyo_acl_head *b)
+{
+ return container_of(a, struct tomoyo_no_rewrite_entry, head)->pattern
+ == container_of(b, struct tomoyo_no_rewrite_entry, head)
+ ->pattern;
+}
+
/**
* tomoyo_update_no_rewrite_entry - Update "struct tomoyo_no_rewrite_entry" list.
*
@@ -566,35 +553,17 @@ LIST_HEAD(tomoyo_no_rewrite_list);
static int tomoyo_update_no_rewrite_entry(const char *pattern,
const bool is_delete)
{
- struct tomoyo_no_rewrite_entry *ptr;
struct tomoyo_no_rewrite_entry e = { };
- int error = is_delete ? -ENOENT : -ENOMEM;
+ int error;
if (!tomoyo_is_correct_word(pattern))
return -EINVAL;
e.pattern = tomoyo_get_name(pattern);
if (!e.pattern)
- return error;
- if (mutex_lock_interruptible(&tomoyo_policy_lock))
- goto out;
- list_for_each_entry_rcu(ptr, &tomoyo_no_rewrite_list, head.list) {
- if (ptr->pattern != e.pattern)
- continue;
- ptr->head.is_deleted = is_delete;
- error = 0;
- break;
- }
- if (!is_delete && error) {
- struct tomoyo_no_rewrite_entry *entry =
- tomoyo_commit_ok(&e, sizeof(e));
- if (entry) {
- list_add_tail_rcu(&entry->head.list,
- &tomoyo_no_rewrite_list);
- error = 0;
- }
- }
- mutex_unlock(&tomoyo_policy_lock);
- out:
+ return -ENOMEM;
+ error = tomoyo_update_policy(&e.head, sizeof(e), is_delete,
+ &tomoyo_no_rewrite_list,
+ tomoyo_same_no_rewrite);
tomoyo_put_name(e.pattern);
return error;
}
diff --git a/security/tomoyo/number_group.c b/security/tomoyo/number_group.c
index afc5b69..7266a74 100644
--- a/security/tomoyo/number_group.c
+++ b/security/tomoyo/number_group.c
@@ -56,6 +56,18 @@ struct tomoyo_number_group *tomoyo_get_number_group(const char *group_name)
return !error ? group : NULL;
}
+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_member,
+ head)->number,
+ &container_of(b, struct tomoyo_number_group_member,
+ head)->number,
+ sizeof(container_of(a,
+ struct tomoyo_number_group_member,
+ head)->number));
+}
+
/**
* tomoyo_write_number_group_policy - Write "struct tomoyo_number_group" list.
*
@@ -68,40 +80,19 @@ int tomoyo_write_number_group_policy(char *data, const bool is_delete)
{
struct tomoyo_number_group *group;
struct tomoyo_number_group_member e = { };
- struct tomoyo_number_group_member *member;
- int error = is_delete ? -ENOENT : -ENOMEM;
+ int error;
char *w[2];
if (!tomoyo_tokenize(data, w, sizeof(w)))
return -EINVAL;
- if (!tomoyo_parse_number_union(w[1], &e.number))
- return -EINVAL;
- if (e.number.is_group || e.number.values[0] > e.number.values[1]) {
- tomoyo_put_number_union(&e.number);
+ if (w[1][0] == '@' || !tomoyo_parse_number_union(w[1], &e.number) ||
+ e.number.values[0] > e.number.values[1])
return -EINVAL;
- }
group = tomoyo_get_number_group(w[0]);
if (!group)
return -ENOMEM;
- if (mutex_lock_interruptible(&tomoyo_policy_lock))
- goto out;
- list_for_each_entry_rcu(member, &group->member_list, head.list) {
- if (memcmp(&member->number, &e.number, sizeof(e.number)))
- continue;
- member->head.is_deleted = is_delete;
- error = 0;
- break;
- }
- if (!is_delete && error) {
- struct tomoyo_number_group_member *entry =
- tomoyo_commit_ok(&e, sizeof(e));
- if (entry) {
- list_add_tail_rcu(&entry->head.list,
- &group->member_list);
- error = 0;
- }
- }
- mutex_unlock(&tomoyo_policy_lock);
- out:
+ error = tomoyo_update_policy(&e.head, sizeof(e), is_delete,
+ &group->member_list,
+ tomoyo_same_number_group);
tomoyo_put_number_group(group);
return error;
}
diff --git a/security/tomoyo/path_group.c b/security/tomoyo/path_group.c
index 7838f76..5b71d88 100644
--- a/security/tomoyo/path_group.c
+++ b/security/tomoyo/path_group.c
@@ -54,6 +54,15 @@ struct tomoyo_path_group *tomoyo_get_path_group(const char *group_name)
return !error ? group : NULL;
}
+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_member, head)
+ ->member_name ==
+ container_of(b, struct tomoyo_path_group_member, head)
+ ->member_name;
+}
+
/**
* tomoyo_write_path_group_policy - Write "struct tomoyo_path_group" list.
*
@@ -65,7 +74,6 @@ struct tomoyo_path_group *tomoyo_get_path_group(const char *group_name)
int tomoyo_write_path_group_policy(char *data, const bool is_delete)
{
struct tomoyo_path_group *group;
- struct tomoyo_path_group_member *member;
struct tomoyo_path_group_member e = { };
int error = is_delete ? -ENOENT : -ENOMEM;
char *w[2];
@@ -77,25 +85,9 @@ int tomoyo_write_path_group_policy(char *data, const bool is_delete)
e.member_name = tomoyo_get_name(w[1]);
if (!e.member_name)
goto out;
- if (mutex_lock_interruptible(&tomoyo_policy_lock))
- goto out;
- list_for_each_entry_rcu(member, &group->member_list, head.list) {
- if (member->member_name != e.member_name)
- continue;
- member->head.is_deleted = is_delete;
- error = 0;
- break;
- }
- if (!is_delete && error) {
- struct tomoyo_path_group_member *entry =
- tomoyo_commit_ok(&e, sizeof(e));
- if (entry) {
- list_add_tail_rcu(&entry->head.list,
- &group->member_list);
- error = 0;
- }
- }
- mutex_unlock(&tomoyo_policy_lock);
+ error = tomoyo_update_policy(&e.head, sizeof(e), is_delete,
+ &group->member_list,
+ tomoyo_same_path_group);
out:
tomoyo_put_name(e.member_name);
tomoyo_put_path_group(group);
generated by cgit v1.1 at 2024-12-25 05:06:45 +0000