diff options
Diffstat (limited to 'net/sunrpc/auth.c')
| -rw-r--r-- | net/sunrpc/auth.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/net/sunrpc/auth.c b/net/sunrpc/auth.c index 727e506cacda..b5c067bccc45 100644 --- a/net/sunrpc/auth.c +++ b/net/sunrpc/auth.c @@ -13,6 +13,7 @@ #include <linux/errno.h> #include <linux/hash.h> #include <linux/sunrpc/clnt.h> +#include <linux/sunrpc/gss_api.h> #include <linux/spinlock.h> #ifdef RPC_DEBUG @@ -122,6 +123,59 @@ rpcauth_unregister(const struct rpc_authops *ops) } EXPORT_SYMBOL_GPL(rpcauth_unregister); +/** + * rpcauth_list_flavors - discover registered flavors and pseudoflavors + * @array: array to fill in + * @size: size of "array" + * + * Returns the number of array items filled in, or a negative errno. + * + * The returned array is not sorted by any policy. Callers should not + * rely on the order of the items in the returned array. + */ +int +rpcauth_list_flavors(rpc_authflavor_t *array, int size) +{ + rpc_authflavor_t flavor; + int result = 0; + + spin_lock(&rpc_authflavor_lock); + for (flavor = 0; flavor < RPC_AUTH_MAXFLAVOR; flavor++) { + const struct rpc_authops *ops = auth_flavors[flavor]; + rpc_authflavor_t pseudos[4]; + int i, len; + + if (result >= size) { + result = -ENOMEM; + break; + } + + if (ops == NULL) + continue; + if (ops->list_pseudoflavors == NULL) { + array[result++] = ops->au_flavor; + continue; + } + len = ops->list_pseudoflavors(pseudos, ARRAY_SIZE(pseudos)); + if (len < 0) { + result = len; + break; + } + for (i = 0; i < len; i++) { + if (result >= size) { + result = -ENOMEM; + break; + } + array[result++] = pseudos[i]; + } + } + spin_unlock(&rpc_authflavor_lock); + + dprintk("RPC: %s returns %d\n", __func__, result); + return result; +} +EXPORT_SYMBOL_GPL(rpcauth_list_flavors); + struct rpc_auth * rpcauth_create(rpc_authflavor_t pseudoflavor, struct rpc_clnt *clnt) { |