diff options
Diffstat (limited to 'net/rxrpc/ar-key.c')
| -rw-r--r-- | net/rxrpc/ar-key.c | 32 |
1 files changed, 29 insertions, 3 deletions
diff --git a/net/rxrpc/ar-key.c b/net/rxrpc/ar-key.c index 7e049ff6ae60..9a8ff684da79 100644 --- a/net/rxrpc/ar-key.c +++ b/net/rxrpc/ar-key.c @@ -15,7 +15,7 @@ #include <linux/module.h> #include <linux/net.h> #include <linux/skbuff.h> -#include <linux/key.h> +#include <linux/key-type.h> #include <linux/crypto.h> #include <net/sock.h> #include <net/af_rxrpc.h> @@ -40,7 +40,6 @@ struct key_type key_type_rxrpc = { .destroy = rxrpc_destroy, .describe = rxrpc_describe, }; - EXPORT_SYMBOL(key_type_rxrpc); /* @@ -330,5 +329,32 @@ error: _leave(" = -ENOMEM [ins %d]", ret); return -ENOMEM; } - EXPORT_SYMBOL(rxrpc_get_server_data_key); + +/** + * rxrpc_get_null_key - Generate a null RxRPC key + * @keyname: The name to give the key. + * + * Generate a null RxRPC key that can be used to indicate anonymous security is + * required for a particular domain. + */ +struct key *rxrpc_get_null_key(const char *keyname) +{ + struct key *key; + int ret; + + key = key_alloc(&key_type_rxrpc, keyname, 0, 0, current, + KEY_POS_SEARCH, KEY_ALLOC_NOT_IN_QUOTA); + if (IS_ERR(key)) + return key; + + ret = key_instantiate_and_link(key, NULL, 0, NULL, NULL); + if (ret < 0) { + key_revoke(key); + key_put(key); + return ERR_PTR(ret); + } + + return key; +} +EXPORT_SYMBOL(rxrpc_get_null_key); |