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/*
Copyright (c) 2010-2011 Gluster, Inc. <http://www.gluster.com>
This file is part of GlusterFS.
GlusterFS is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 3 of the License,
or (at your option) any later version.
GlusterFS is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see
<http://www.gnu.org/licenses/>.
*/
#ifndef _NFS_XDR_RPC_H
#define _NFS_XDR_RPC_H_
#ifndef _CONFIG_H
#define _CONFIG_H
#include "config.h"
#endif
#include <rpc/rpc.h>
#include <rpc/pmap_clnt.h>
#include <arpa/inet.h>
#include <rpc/xdr.h>
#include <sys/uio.h>
/* Converts a given network buffer from its XDR format to a structure
* that contains everything an RPC call needs to work.
*/
extern int
nfs_xdr_to_rpc_call (char *msgbuf, size_t len, struct rpc_msg *call,
struct iovec *payload, char *credbytes, char *verfbytes);
extern int
nfs_rpc_fill_empty_reply (struct rpc_msg *reply, uint32_t xid);
extern int
nfs_rpc_fill_denied_reply (struct rpc_msg *reply, int rjstat, int auth_err);
extern int
nfs_rpc_fill_accepted_reply (struct rpc_msg *reply, int arstat, int proglow,
int proghigh, int verf, int len, char *vdata);
extern int
nfs_rpc_reply_to_xdr (struct rpc_msg *reply, char *dest, size_t len,
struct iovec *dst);
extern int
nfs_xdr_to_auth_unix_cred (char *msgbuf, int msglen, struct authunix_parms *au,
char *machname, gid_t *gids);
/* Macros that simplify accesing the members of an RPC call structure. */
#define nfs_rpc_call_xid(call) ((call)->rm_xid)
#define nfs_rpc_call_direction(call) ((call)->rm_direction)
#define nfs_rpc_call_rpcvers(call) ((call)->ru.RM_cmb.cb_rpcvers)
#define nfs_rpc_call_program(call) ((call)->ru.RM_cmb.cb_prog)
#define nfs_rpc_call_progver(call) ((call)->ru.RM_cmb.cb_vers)
#define nfs_rpc_call_progproc(call) ((call)->ru.RM_cmb.cb_proc)
#define nfs_rpc_opaque_auth_flavour(oa) ((oa)->oa_flavor)
#define nfs_rpc_opaque_auth_len(oa) ((oa)->oa_length)
#define nfs_rpc_call_cred_flavour(call) (nfs_rpc_opaque_auth_flavour ((&(call)->ru.RM_cmb.cb_cred)))
#define nfs_rpc_call_cred_len(call) (nfs_rpc_opaque_auth_len ((&(call)->ru.RM_cmb.cb_cred)))
#define nfs_rpc_call_verf_flavour(call) (nfs_rpc_opaque_auth_flavour ((&(call)->ru.RM_cmb.cb_verf)))
#define nfs_rpc_call_verf_len(call) (nfs_rpc_opaque_auth_len ((&(call)->ru.RM_cmb.cb_verf)))
extern int
nfs_xdr_bytes_round_up (struct iovec *vec, size_t bufsize);
extern ssize_t
nfs_xdr_length_round_up (size_t len, size_t bufsize);
void
nfs_xdr_vector_round_up (struct iovec *vec, int vcount, uint32_t count);
#endif
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