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authorChuck Lever <chuck.lever@oracle.com>2013-03-16 15:55:10 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2013-03-29 15:43:33 -0400
commita77c806fb9d097bb7733b64207cf52fc2c6438bb (patch)
tree198d62d0436f22e7288142eb7341880a1b99ee3e /net/sunrpc/auth.c
parent83523d083a045a2069e5f3443d2e4f810a6e6d9a (diff)
downloadlinux-a77c806fb9d097bb7733b64207cf52fc2c6438bb.tar.bz2
SUNRPC: Refactor nfsd4_do_encode_secinfo()
Clean up. This matches a similar API for the client side, and keeps ULP fingers out the of the GSS mech switch. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Acked-by: J. Bruce Fields <bfields@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'net/sunrpc/auth.c')
-rw-r--r--net/sunrpc/auth.c35
1 files changed, 35 insertions, 0 deletions
diff --git a/net/sunrpc/auth.c b/net/sunrpc/auth.c
index 9b81be8d9946..2bc0cc2196e0 100644
--- a/net/sunrpc/auth.c
+++ b/net/sunrpc/auth.c
@@ -159,6 +159,41 @@ rpcauth_get_pseudoflavor(rpc_authflavor_t flavor, struct rpcsec_gss_info *info)
EXPORT_SYMBOL_GPL(rpcauth_get_pseudoflavor);
/**
+ * rpcauth_get_gssinfo - find GSS tuple matching a GSS pseudoflavor
+ * @pseudoflavor: GSS pseudoflavor to match
+ * @info: rpcsec_gss_info structure to fill in
+ *
+ * Returns zero and fills in "info" if pseudoflavor matches a
+ * supported mechanism.
+ */
+int
+rpcauth_get_gssinfo(rpc_authflavor_t pseudoflavor, struct rpcsec_gss_info *info)
+{
+ rpc_authflavor_t flavor = pseudoflavor_to_flavor(pseudoflavor);
+ const struct rpc_authops *ops;
+ int result;
+
+ ops = auth_flavors[flavor];
+ if (ops == NULL)
+ request_module("rpc-auth-%u", flavor);
+ spin_lock(&rpc_authflavor_lock);
+ ops = auth_flavors[flavor];
+ if (ops == NULL || !try_module_get(ops->owner)) {
+ spin_unlock(&rpc_authflavor_lock);
+ return -ENOENT;
+ }
+ spin_unlock(&rpc_authflavor_lock);
+
+ result = -ENOENT;
+ if (ops->flavor2info != NULL)
+ result = ops->flavor2info(pseudoflavor, info);
+
+ module_put(ops->owner);
+ return result;
+}
+EXPORT_SYMBOL_GPL(rpcauth_get_gssinfo);
+
+/**
* rpcauth_list_flavors - discover registered flavors and pseudoflavors
* @array: array to fill in
* @size: size of "array"