46 static inline struct key *keyring_ptr_to_key(const struct assoc_array_ptr *x)  in keyring_ptr_to_key()
49 	return (struct key *)((unsigned long)object & ~KEYRING_PTR_SUBTYPE);  in keyring_ptr_to_key()
51 static inline void *keyring_key_to_ptr(struct key *key)  in keyring_key_to_ptr()  argument
53 	if (key->type == &key_type_keyring)  in keyring_key_to_ptr()
54 		return (void *)((unsigned long)key | KEYRING_PTR_SUBTYPE);  in keyring_key_to_ptr()
55 	return key;  in keyring_key_to_ptr()
78 static int keyring_instantiate(struct key *keyring,
80 static void keyring_revoke(struct key *keyring);
81 static void keyring_destroy(struct key *keyring);
82 static void keyring_describe(const struct key *keyring, struct seq_file *m);
83 static long keyring_read(const struct key *keyring,
109 static void keyring_publish_name(struct key *keyring)  in keyring_publish_name()
148 static int keyring_instantiate(struct key *keyring,  in keyring_instantiate()
274 	const struct key *key = keyring_ptr_to_key(object);  in keyring_get_object_key_chunk()  local
275 	return keyring_get_key_chunk(&key->index_key, level);  in keyring_get_object_key_chunk()
281 	const struct key *key = keyring_ptr_to_key(object);  in keyring_compare_object()  local
283 	return key->index_key.type == index_key->type &&  in keyring_compare_object()
284 		key->index_key.desc_len == index_key->desc_len &&  in keyring_compare_object()
285 		memcmp(key->index_key.description, index_key->description,  in keyring_compare_object()
295 	const struct key *key_a = keyring_ptr_to_key(object);  in keyring_diff_objects()
385 static void keyring_destroy(struct key *keyring)  in keyring_destroy()
403 static void keyring_describe(const struct key *keyring, struct seq_file *m)  in keyring_describe()
427 	const struct key *key = keyring_ptr_to_key(object);  in keyring_read_iterator()  local
431 	       key->type->name, key->serial, ctx->count, ctx->qty);  in keyring_read_iterator()
436 	ret = put_user(key->serial, ctx->buffer);  in keyring_read_iterator()
440 	ctx->count += sizeof(key->serial);  in keyring_read_iterator()
451 static long keyring_read(const struct key *keyring,  in keyring_read()
492 struct key *keyring_alloc(const char *description, kuid_t uid, kgid_t gid,  in keyring_alloc()
494 			  unsigned long flags, struct key *dest)  in keyring_alloc()
496 	struct key *keyring;  in keyring_alloc()
516 bool key_default_cmp(const struct key *key,  in key_default_cmp()  argument
519 	return strcmp(key->description, match_data->raw_data) == 0;  in key_default_cmp()
528 	const struct key *key = keyring_ptr_to_key(object);  in keyring_search_iterator()  local
529 	unsigned long kflags = key->flags;  in keyring_search_iterator()
531 	kenter("{%d}", key->serial);  in keyring_search_iterator()
534 	if (key->type != ctx->index_key.type) {  in keyring_search_iterator()
548 		if (key->expiry && ctx->now.tv_sec >= key->expiry) {  in keyring_search_iterator()
557 	if (!ctx->match_data.cmp(key, &ctx->match_data)) {  in keyring_search_iterator()
564 	    key_task_permission(make_key_ref(key, ctx->possessed),  in keyring_search_iterator()
575 			ctx->result = ERR_PTR(key->reject_error);  in keyring_search_iterator()
582 	ctx->result = make_key_ref(key, ctx->possessed);  in keyring_search_iterator()
595 static int search_keyring(struct key *keyring, struct keyring_search_context *ctx)  in search_keyring()
612 static bool search_nested_keyrings(struct key *keyring,  in search_nested_keyrings()
616 		struct key *keyring;  in search_nested_keyrings()
624 	struct key *key;  in search_nested_keyrings()  local
732 		key = keyring_ptr_to_key(ptr);  in search_nested_keyrings()
744 		    key_task_permission(make_key_ref(key, ctx->possessed),  in search_nested_keyrings()
755 		keyring = key;  in search_nested_keyrings()
806 	key = key_ref_to_ptr(ctx->result);  in search_nested_keyrings()
807 	key_check(key);  in search_nested_keyrings()
809 		key->last_used_at = ctx->now.tv_sec;  in search_nested_keyrings()
853 	struct key *keyring;  in keyring_search_aux()
902 	key_ref_t key;  in keyring_search()  local
911 	key = keyring_search_aux(keyring, &ctx);  in keyring_search()
915 	return key;  in keyring_search()
936 	struct key *keyring, *key;  in find_key_to_update()  local
954 	key = keyring_ptr_to_key(object);  in find_key_to_update()
955 	if (key->flags & ((1 << KEY_FLAG_INVALIDATED) |  in find_key_to_update()
960 	__key_get(key);  in find_key_to_update()
961 	kleave(" = {%d}", key->serial);  in find_key_to_update()
962 	return make_key_ref(key, is_key_possessed(keyring_ref));  in find_key_to_update()
976 struct key *find_keyring_by_name(const char *name, bool skip_perm_check)  in find_keyring_by_name()
978 	struct key *keyring;  in find_keyring_by_name()
1029 	const struct key *key = keyring_ptr_to_key(object);  in keyring_detect_cycle_iterator()  local
1031 	kenter("{%d}", key->serial);  in keyring_detect_cycle_iterator()
1035 	if (key != ctx->match_data.raw_data)  in keyring_detect_cycle_iterator()
1049 static int keyring_detect_cycle(struct key *A, struct key *B)  in keyring_detect_cycle()
1071 int __key_link_begin(struct key *keyring,  in __key_link_begin()
1142 int __key_link_check_live_key(struct key *keyring, struct key *key)  in __key_link_check_live_key()  argument
1144 	if (key->type == &key_type_keyring)  in __key_link_check_live_key()
1147 		return keyring_detect_cycle(keyring, key);  in __key_link_check_live_key()
1159 void __key_link(struct key *key, struct assoc_array_edit **_edit)  in __key_link()  argument
1161 	__key_get(key);  in __key_link()
1162 	assoc_array_insert_set_object(*_edit, keyring_key_to_ptr(key));  in __key_link()
1172 void __key_link_end(struct key *keyring,  in __key_link_end()
1214 int key_link(struct key *keyring, struct key *key)  in key_link()  argument
1222 	key_check(key);  in key_link()
1225 	    !test_bit(KEY_FLAG_TRUSTED, &key->flags))  in key_link()
1228 	ret = __key_link_begin(keyring, &key->index_key, &edit);  in key_link()
1231 		ret = __key_link_check_live_key(keyring, key);  in key_link()
1233 			__key_link(key, &edit);  in key_link()
1234 		__key_link_end(keyring, &key->index_key, edit);  in key_link()
1259 int key_unlink(struct key *keyring, struct key *key)  in key_unlink()  argument
1265 	key_check(key);  in key_unlink()
1273 				  &key->index_key);  in key_unlink()
1300 int keyring_clear(struct key *keyring)  in keyring_clear()
1330 static void keyring_revoke(struct key *keyring)  in keyring_revoke()
1344 	struct key *key = keyring_ptr_to_key(object);  in keyring_gc_select_iterator()  local
1347 	if (key_is_dead(key, *limit))  in keyring_gc_select_iterator()
1349 	key_get(key);  in keyring_gc_select_iterator()
1355 	const struct key *key = keyring_ptr_to_key(object);  in keyring_gc_check_iterator()  local
1358 	key_check(key);  in keyring_gc_check_iterator()
1359 	return key_is_dead(key, *limit);  in keyring_gc_check_iterator()
1368 void keyring_gc(struct key *keyring, time_t limit)  in keyring_gc()