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/*
Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com>
This file is part of GlusterFS.
This file is licensed to you under your choice of the GNU Lesser
General Public License, version 3 or any later version (LGPLv3 or
later), or the GNU General Public License, version 2 (GPLv2), in all
cases as published by the Free Software Foundation.
*/
#include <rpc/rpc.h>
#include <rpc/pmap_clnt.h>
#include <arpa/inet.h>
#include <rpc/xdr.h>
#include <sys/uio.h>
#include <rpc/auth_unix.h>
#include <errno.h>
#include <glusterfs/mem-pool.h>
#include "xdr-rpc.h"
#include "xdr-common.h"
#include <glusterfs/logging.h>
#include <glusterfs/common-utils.h>
/* Decodes the XDR format in msgbuf into rpc_msg.
* The remaining payload is returned into payload.
*/
int
xdr_to_rpc_reply(char *msgbuf, size_t len, struct rpc_msg *reply,
struct iovec *payload, char *verfbytes)
{
XDR xdr;
int ret = -EINVAL;
GF_VALIDATE_OR_GOTO("rpc", msgbuf, out);
GF_VALIDATE_OR_GOTO("rpc", reply, out);
memset(reply, 0, sizeof(struct rpc_msg));
reply->acpted_rply.ar_verf = _null_auth;
reply->acpted_rply.ar_results.where = NULL;
reply->acpted_rply.ar_results.proc = (xdrproc_t)(xdr_void);
xdrmem_create(&xdr, msgbuf, len, XDR_DECODE);
if (!xdr_replymsg(&xdr, reply)) {
gf_log("rpc", GF_LOG_WARNING, "failed to decode reply msg");
goto out;
}
if (payload) {
payload->iov_base = xdr_decoded_remaining_addr(xdr);
payload->iov_len = xdr_decoded_remaining_len(xdr);
}
ret = 0;
out:
return ret;
}
int
rpc_request_to_xdr(struct rpc_msg *request, char *dest, size_t len,
struct iovec *dst)
{
XDR xdr;
int ret = -1;
GF_VALIDATE_OR_GOTO("rpc", dest, out);
GF_VALIDATE_OR_GOTO("rpc", request, out);
GF_VALIDATE_OR_GOTO("rpc", dst, out);
xdrmem_create(&xdr, dest, len, XDR_ENCODE);
if (!xdr_callmsg(&xdr, request)) {
gf_log("rpc", GF_LOG_WARNING, "failed to encode call msg");
goto out;
}
dst->iov_base = dest;
dst->iov_len = xdr_encoded_length(xdr);
ret = 0;
out:
return ret;
}
int
auth_unix_cred_to_xdr(struct authunix_parms *au, char *dest, size_t len,
struct iovec *iov)
{
XDR xdr;
int ret = -1;
GF_VALIDATE_OR_GOTO("rpc", au, out);
GF_VALIDATE_OR_GOTO("rpc", dest, out);
GF_VALIDATE_OR_GOTO("rpc", iov, out);
xdrmem_create(&xdr, dest, len, XDR_DECODE);
if (!xdr_authunix_parms(&xdr, au)) {
gf_log("rpc", GF_LOG_WARNING, "failed to decode authunix parms");
goto out;
}
iov->iov_base = dest;
iov->iov_len = xdr_encoded_length(xdr);
ret = 0;
out:
return ret;
}
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