NFS: Add secinfo procedure

This patch adds the nfs4 operation secinfo as a
valid nfs rpc operation.

Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 35 insertions, 0 deletions

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 448657456b68..0b8bae119976 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -4639,6 +4639,40 @@ int nfs4_proc_fs_locations(struct inode *dir, const struct qstr *name,
         return status;
 }
 
+static int _nfs4_proc_secinfo(struct inode *dir, const struct qstr *name, struct nfs4_secinfo_flavors *flavors)
+{
+        int status;
+        struct nfs4_secinfo_arg args = {
+                .dir_fh = NFS_FH(dir),
+                .name   = name,
+        };
+        struct nfs4_secinfo_res res = {
+                .flavors     = flavors,
+        };
+        struct rpc_message msg = {
+                .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_SECINFO],
+                .rpc_argp = &args,
+                .rpc_resp = &res,
+        };
+
+        dprintk("NFS call  secinfo %s\n", name->name);
+        status = nfs4_call_sync(NFS_SERVER(dir)->client, NFS_SERVER(dir), &msg, &args.seq_args, &res.seq_res, 0);
+        dprintk("NFS reply  secinfo: %d\n", status);
+        return status;
+}
+
+int nfs4_proc_secinfo(struct inode *dir, const struct qstr *name, struct nfs4_secinfo_flavors *flavors)
+{
+        struct nfs4_exception exception = { };
+        int err;
+        do {
+                err = nfs4_handle_exception(NFS_SERVER(dir),
+                                _nfs4_proc_secinfo(dir, name, flavors),
+                                &exception);
+        } while (exception.retry);
+        return err;
+}
+
 #ifdef CONFIG_NFS_V4_1
 /*
  * Check the exchange flags returned by the server for invalid flags, having
@@ -5756,6 +5790,7 @@ const struct nfs_rpc_ops nfs_v4_clientops = {
         .close_context  = nfs4_close_context,
         .open_context   = nfs4_atomic_open,
         .init_client    = nfs4_init_client,
+        .secinfo        = nfs4_proc_secinfo,
 };
 
 static const struct xattr_handler nfs4_xattr_nfs4_acl_handler = {