173 	struct key *key;  in SYSCALL_DEFINE4()  local
222 	key = request_key_and_link(ktype, description, NULL, callout_info,  in SYSCALL_DEFINE4()
225 	if (IS_ERR(key)) {  in SYSCALL_DEFINE4()
226 		ret = PTR_ERR(key);  in SYSCALL_DEFINE4()
231 	ret = wait_for_key_construction(key, 1);  in SYSCALL_DEFINE4()
235 	ret = key->serial;  in SYSCALL_DEFINE4()
238  	key_put(key);  in SYSCALL_DEFINE4()
382 	struct key *key;  in keyctl_revoke_key()  local
397 	key = key_ref_to_ptr(key_ref);  in keyctl_revoke_key()
399 	if (test_bit(KEY_FLAG_KEEP, &key->flags))  in keyctl_revoke_key()
402 		key_revoke(key);  in keyctl_revoke_key()
423 	struct key *key;  in keyctl_invalidate_key()  local
447 	key = key_ref_to_ptr(key_ref);  in keyctl_invalidate_key()
449 	if (test_bit(KEY_FLAG_KEEP, &key->flags))  in keyctl_invalidate_key()
452 		key_invalidate(key);  in keyctl_invalidate_key()
470 	struct key *keyring;  in keyctl_keyring_clear()
555 	struct key *keyring, *key;  in keyctl_keyring_unlink()  local
571 	key = key_ref_to_ptr(key_ref);  in keyctl_keyring_unlink()
573 	    test_bit(KEY_FLAG_KEEP, &key->flags))  in keyctl_keyring_unlink()
576 		ret = key_unlink(keyring, key);  in keyctl_keyring_unlink()
648 	struct key *key, *instkey;  in keyctl_describe_key()  local
675 	key = key_ref_to_ptr(key_ref);  in keyctl_describe_key()
676 	desclen = strlen(key->description);  in keyctl_describe_key()
682 			    key->type->name,  in keyctl_describe_key()
683 			    from_kuid_munged(current_user_ns(), key->uid),  in keyctl_describe_key()
684 			    from_kgid_munged(current_user_ns(), key->gid),  in keyctl_describe_key()
685 			    key->perm);  in keyctl_describe_key()
694 		    copy_to_user(buffer + infolen, key->description,  in keyctl_describe_key()
803 static long __keyctl_read_key(struct key *key, char *buffer, size_t buflen)  in __keyctl_read_key()  argument
807 	down_read(&key->sem);  in __keyctl_read_key()
808 	ret = key_validate(key);  in __keyctl_read_key()
810 		ret = key->type->read(key, buffer, buflen);  in __keyctl_read_key()
811 	up_read(&key->sem);  in __keyctl_read_key()
827 	struct key *key;  in keyctl_read_key()  local
840 	key = key_ref_to_ptr(key_ref);  in keyctl_read_key()
842 	ret = key_read_state(key);  in keyctl_read_key()
864 	if (!key->type->read) {  in keyctl_read_key()
871 		ret = __keyctl_read_key(key, NULL, 0);  in keyctl_read_key()
900 		ret = __keyctl_read_key(key, key_data, key_data_len);  in keyctl_read_key()
929 	key_put(key);  in keyctl_read_key()
952 	struct key *key;  in keyctl_chown_key()  local
977 	key = key_ref_to_ptr(key_ref);  in keyctl_chown_key()
981 	down_write(&key->sem);  in keyctl_chown_key()
987 		if (user != (uid_t) -1 && !uid_eq(key->uid, uid))  in keyctl_chown_key()
992 		if (group != (gid_t) -1 && !gid_eq(gid, key->gid) && !in_group_p(gid))  in keyctl_chown_key()
1000 	if (user != (uid_t) -1 && !uid_eq(uid, key->uid)) {  in keyctl_chown_key()
1007 		if (test_bit(KEY_FLAG_IN_QUOTA, &key->flags)) {  in keyctl_chown_key()
1015 			    newowner->qnbytes + key->quotalen > maxbytes ||  in keyctl_chown_key()
1016 			    newowner->qnbytes + key->quotalen <  in keyctl_chown_key()
1021 			newowner->qnbytes += key->quotalen;  in keyctl_chown_key()
1024 			spin_lock(&key->user->lock);  in keyctl_chown_key()
1025 			key->user->qnkeys--;  in keyctl_chown_key()
1026 			key->user->qnbytes -= key->quotalen;  in keyctl_chown_key()
1027 			spin_unlock(&key->user->lock);  in keyctl_chown_key()
1030 		atomic_dec(&key->user->nkeys);  in keyctl_chown_key()
1033 		if (key->state != KEY_IS_UNINSTANTIATED) {  in keyctl_chown_key()
1034 			atomic_dec(&key->user->nikeys);  in keyctl_chown_key()
1038 		zapowner = key->user;  in keyctl_chown_key()
1039 		key->user = newowner;  in keyctl_chown_key()
1040 		key->uid = uid;  in keyctl_chown_key()
1045 		key->gid = gid;  in keyctl_chown_key()
1047 	notify_key(key, NOTIFY_KEY_SETATTR, 0);  in keyctl_chown_key()
1051 	up_write(&key->sem);  in keyctl_chown_key()
1052 	key_put(key);  in keyctl_chown_key()
1074 	struct key *key;  in keyctl_setperm_key()  local
1089 	key = key_ref_to_ptr(key_ref);  in keyctl_setperm_key()
1093 	down_write(&key->sem);  in keyctl_setperm_key()
1096 	if (uid_eq(key->uid, current_fsuid()) || capable(CAP_SYS_ADMIN)) {  in keyctl_setperm_key()
1097 		key->perm = perm;  in keyctl_setperm_key()
1098 		notify_key(key, NOTIFY_KEY_SETATTR, 0);  in keyctl_setperm_key()
1102 	up_write(&key->sem);  in keyctl_setperm_key()
1103 	key_put(key);  in keyctl_setperm_key()
1114 				      struct key **_dest_keyring)  in get_instantiation_keyring()
1149 static int keyctl_change_reqkey_auth(struct key *key)  in keyctl_change_reqkey_auth()  argument
1158 	new->request_key_auth = key_get(key);  in keyctl_change_reqkey_auth()
1178 	struct key *instkey, *dest_keyring;  in keyctl_instantiate_key_common()
1340 	struct key *instkey, *dest_keyring;  in keyctl_reject_key()
1459 	struct key *key, *instkey;  in keyctl_set_timeout()  local
1485 	key = key_ref_to_ptr(key_ref);  in keyctl_set_timeout()
1487 	if (test_bit(KEY_FLAG_KEEP, &key->flags)) {  in keyctl_set_timeout()
1490 		key_set_timeout(key, timeout);  in keyctl_set_timeout()
1491 		notify_key(key, NOTIFY_KEY_SETATTR, 0);  in keyctl_set_timeout()
1493 	key_put(key);  in keyctl_set_timeout()
1518 	struct key *authkey;  in keyctl_assume_authority()
1565 	struct key *key, *instkey;  in keyctl_get_security()  local
1588 	key = key_ref_to_ptr(key_ref);  in keyctl_get_security()
1589 	ret = security_key_getsecurity(key, &context);  in keyctl_get_security()
1778 	struct key *key;  in keyctl_watch_key()  local
1788 	key = key_ref_to_ptr(key_ref);  in keyctl_watch_key()
1798 		if (!key->watchers) {  in keyctl_watch_key()
1810 		watch->id	= key->serial;  in keyctl_watch_key()
1813 		ret = security_watch_key(key);  in keyctl_watch_key()
1817 		down_write(&key->sem);  in keyctl_watch_key()
1818 		if (!key->watchers) {  in keyctl_watch_key()
1819 			key->watchers = wlist;  in keyctl_watch_key()
1823 		ret = add_watch_to_object(watch, key->watchers);  in keyctl_watch_key()
1824 		up_write(&key->sem);  in keyctl_watch_key()
1830 		if (key->watchers) {  in keyctl_watch_key()
1831 			down_write(&key->sem);  in keyctl_watch_key()
1832 			ret = remove_watch_from_object(key->watchers,  in keyctl_watch_key()
1833 						       wqueue, key_serial(key),  in keyctl_watch_key()
1835 			up_write(&key->sem);  in keyctl_watch_key()
1846 	key_put(key);  in keyctl_watch_key()