From 49890fe1b1a1f181304853103013ad0d5930f5e5 Mon Sep 17 00:00:00 2001
From: Casey Bodley <cbodley@citi.umich.edu>
Date: Tue, 14 Jun 2011 09:12:13 -0400
Subject: [PATCH] namedattr: xdr for OPENATTR

Signed-off-by: Casey Bodley <cbodley@citi.umich.edu>
---
 daemon/nfs41_ops.c | 44 ++++++++++++++++++++++++++++++++++++++++++++
 daemon/nfs41_ops.h | 16 ++++++++++++++++
 daemon/nfs41_xdr.c | 30 +++++++++++++++++++++++++++++-
 3 files changed, 89 insertions(+), 1 deletion(-)

diff --git a/daemon/nfs41_ops.c b/daemon/nfs41_ops.c
index d1a6a90..46c3f06 100644
--- a/daemon/nfs41_ops.c
+++ b/daemon/nfs41_ops.c
@@ -1934,3 +1934,47 @@ enum nfsstat4 pnfs_rpc_getdeviceinfo(
 out:
     return status;
 }
+
+enum nfsstat4 nfs41_rpc_openattr(
+    IN nfs41_session *session,
+    IN nfs41_path_fh *file,
+    IN bool_t createdir,
+    OUT nfs41_fh *fh_out)
+{
+    enum nfsstat4 status;
+    nfs41_compound compound;
+    nfs_argop4 argops[4];
+    nfs_resop4 resops[4];
+    nfs41_sequence_args sequence_args;
+    nfs41_sequence_res sequence_res;
+    nfs41_putfh_args putfh_args;
+    nfs41_putfh_res putfh_res;
+    nfs41_openattr_args openattr_args;
+    nfs41_openattr_res openattr_res;
+    nfs41_getfh_res getfh_res;
+
+    compound_init(&compound, argops, resops, "openattr");
+
+    compound_add_op(&compound, OP_SEQUENCE, &sequence_args, &sequence_res);
+    status = nfs41_session_sequence(&sequence_args, session, 0);
+    if (status)
+        goto out;
+
+    compound_add_op(&compound, OP_PUTFH, &putfh_args, &putfh_res);
+    putfh_args.file = file;
+    putfh_args.in_recovery = FALSE;
+
+    compound_add_op(&compound, OP_OPENATTR, &openattr_args, &openattr_res);
+    openattr_args.createdir = createdir;
+
+    compound_add_op(&compound, OP_GETFH, NULL, &getfh_res);
+    getfh_res.fh = fh_out;
+
+    status = compound_encode_send_decode(session, &compound, TRUE);
+    if (status)
+        goto out;
+
+    compound_error(status = compound.res.status);
+out:
+    return status;
+}
diff --git a/daemon/nfs41_ops.h b/daemon/nfs41_ops.h
index 3b296f8..1dfb3ca 100644
--- a/daemon/nfs41_ops.h
+++ b/daemon/nfs41_ops.h
@@ -640,6 +640,16 @@ typedef struct __nfs41_op_open_res {
 } nfs41_op_open_res;
 
 
+/* OP_OPENATTR */
+typedef struct __nfs41_openattr_args {
+    bool_t                  createdir;
+} nfs41_openattr_args;
+
+typedef struct __nfs41_openattr_res {
+    uint32_t                status;
+} nfs41_openattr_res;
+
+
 /* OP_READ */
 typedef struct __nfs41_read_args {
     stateid_arg             *stateid; /* -> nfs41_op_open_res_ok.stateid */
@@ -1168,4 +1178,10 @@ enum nfsstat4 pnfs_rpc_getdeviceinfo(
     IN unsigned char *deviceid,
     OUT pnfs_file_device *device);
 
+enum nfsstat4 nfs41_rpc_openattr(
+    IN nfs41_session *session,
+    IN nfs41_path_fh *file,
+    IN bool_t createdir,
+    OUT nfs41_fh *fh_out);
+
 #endif /* !__NFS41_NFS_OPS_H__ */
diff --git a/daemon/nfs41_xdr.c b/daemon/nfs41_xdr.c
index 4e84ee3..2c2270c 100644
--- a/daemon/nfs41_xdr.c
+++ b/daemon/nfs41_xdr.c
@@ -2097,6 +2097,34 @@ static bool_t decode_op_open(
 }
 
 
+/*
+ * OP_OPENATTR
+ */
+static bool_t encode_op_openattr(
+    XDR *xdr,
+    nfs_argop4 *argop)
+{
+    nfs41_openattr_args *args = (nfs41_openattr_args*)argop->arg;
+
+    if (unexpected_op(argop->op, OP_OPENATTR))
+        return FALSE;
+
+    return xdr_bool(xdr, &args->createdir);
+}
+
+static bool_t decode_op_openattr(
+    XDR *xdr,
+    nfs_resop4 *resop)
+{
+    nfs41_openattr_res *res = (nfs41_openattr_res*)resop->res;
+
+    if (unexpected_op(resop->op, OP_OPENATTR))
+        return FALSE;
+
+    return xdr_u_int32_t(xdr, &res->status);
+}
+
+
 /*
  * OP_READ
  */
@@ -3301,7 +3329,7 @@ static const op_table_entry g_op_table[] = {
     { NULL, NULL }, /* OP_LOOKUPP = 16 */
     { NULL, NULL }, /* OP_NVERIFY = 17 */
     { encode_op_open, decode_op_open }, /* OP_OPEN = 18 */
-    { NULL, NULL }, /* OP_OPENATTR = 19 */
+    { encode_op_openattr, decode_op_openattr }, /* OP_OPENATTR = 19 */
     { NULL, NULL }, /* OP_OPEN_CONFIRM = 20 */
     { NULL, NULL }, /* OP_OPEN_DOWNGRADE = 21 */
     { encode_op_putfh, decode_op_putfh }, /* OP_PUTFH = 22 */