/* $NetBSD: rpc_callmsg.c,v 1.20 2013/03/11 20:19:29 tron Exp $ */
/*
* Copyright (c) 2010, Oracle America, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
* * Neither the name of the "Oracle America, Inc." nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
#if 0
static char *sccsid = "@(#)rpc_callmsg.c 1.4 87/08/11 Copyr 1984 Sun Micro";
static char *sccsid = "@(#)rpc_callmsg.c 2.1 88/07/29 4.0 RPCSRC";
#else
__RCSID("$NetBSD: rpc_callmsg.c,v 1.20 2013/03/11 20:19:29 tron Exp $");
#endif
#endif
/*
* rpc_callmsg.c
*
* Copyright (C) 1984, Sun Microsystems, Inc.
*
*/
#include "namespace.h"
#include <sys/param.h>
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <rpc/rpc.h>
#ifdef __weak_alias
__weak_alias(xdr_callmsg,_xdr_callmsg)
#endif
/*
* XDR a call message
*/
bool_t
xdr_callmsg(XDR *xdrs, struct rpc_msg *cmsg)
{
int32_t *buf;
struct opaque_auth *oa;
_DIAGASSERT(xdrs != NULL);
_DIAGASSERT(cmsg != NULL);
if (xdrs->x_op == XDR_ENCODE) {
if (cmsg->rm_call.cb_cred.oa_length > MAX_AUTH_BYTES) {
return (FALSE);
}
if (cmsg->rm_call.cb_verf.oa_length > MAX_AUTH_BYTES) {
return (FALSE);
}
buf = XDR_INLINE(xdrs, 8 * BYTES_PER_XDR_UNIT
+ RNDUP(cmsg->rm_call.cb_cred.oa_length)
+ 2 * BYTES_PER_XDR_UNIT
+ RNDUP(cmsg->rm_call.cb_verf.oa_length));
if (buf != NULL) {
IXDR_PUT_INT32(buf, cmsg->rm_xid);
IXDR_PUT_ENUM(buf, cmsg->rm_direction);
if (cmsg->rm_direction != CALL) {
return (FALSE);
}
IXDR_PUT_INT32(buf, cmsg->rm_call.cb_rpcvers);
if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) {
return (FALSE);
}
IXDR_PUT_INT32(buf, cmsg->rm_call.cb_prog);
IXDR_PUT_INT32(buf, cmsg->rm_call.cb_vers);
IXDR_PUT_INT32(buf, cmsg->rm_call.cb_proc);
oa = &cmsg->rm_call.cb_cred;
IXDR_PUT_ENUM(buf, oa->oa_flavor);
IXDR_PUT_INT32(buf, oa->oa_length);
if (oa->oa_length) {
memmove(buf, oa->oa_base, oa->oa_length);
buf += RNDUP(oa->oa_length) / sizeof (int32_t);
}
oa = &cmsg->rm_call.cb_verf;
IXDR_PUT_ENUM(buf, oa->oa_flavor);
IXDR_PUT_INT32(buf, oa->oa_length);
if (oa->oa_length) {
memmove(buf, oa->oa_base, oa->oa_length);
/* no real need....
buf += RNDUP(oa->oa_length) / sizeof (int32_t);
*/
}
return (TRUE);
}
}
if (xdrs->x_op == XDR_DECODE) {
buf = XDR_INLINE(xdrs, 8 * BYTES_PER_XDR_UNIT);
if (buf != NULL) {
cmsg->rm_xid = IXDR_GET_U_INT32(buf);
cmsg->rm_direction = IXDR_GET_ENUM(buf, enum msg_type);
if (cmsg->rm_direction != CALL) {
return (FALSE);
}
cmsg->rm_call.cb_rpcvers = IXDR_GET_U_INT32(buf);
if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) {
return (FALSE);
}
cmsg->rm_call.cb_prog = IXDR_GET_U_INT32(buf);
cmsg->rm_call.cb_vers = IXDR_GET_U_INT32(buf);
cmsg->rm_call.cb_proc = IXDR_GET_U_INT32(buf);
oa = &cmsg->rm_call.cb_cred;
oa->oa_flavor = IXDR_GET_ENUM(buf, enum_t);
oa->oa_length = (u_int)IXDR_GET_U_INT32(buf);
if (oa->oa_length) {
if (oa->oa_length > MAX_AUTH_BYTES) {
return (FALSE);
}
if (oa->oa_base == NULL) {
oa->oa_base = mem_alloc(oa->oa_length);
if (oa->oa_base == NULL)
return (FALSE);
}
buf = XDR_INLINE(xdrs, RNDUP(oa->oa_length));
if (buf == NULL) {
if (xdr_opaque(xdrs, oa->oa_base,
oa->oa_length) == FALSE) {
return (FALSE);
}
} else {
memmove(oa->oa_base, buf,
oa->oa_length);
/* no real need....
buf += RNDUP(oa->oa_length) /
sizeof (int32_t);
*/
}
}
oa = &cmsg->rm_call.cb_verf;
buf = XDR_INLINE(xdrs, 2 * BYTES_PER_XDR_UNIT);
if (buf == NULL) {
if (xdr_enum(xdrs, &oa->oa_flavor) == FALSE ||
xdr_u_int(xdrs, &oa->oa_length) == FALSE) {
return (FALSE);
}
} else {
oa->oa_flavor = IXDR_GET_ENUM(buf, enum_t);
oa->oa_length = (u_int)IXDR_GET_U_INT32(buf);
}
if (oa->oa_length) {
if (oa->oa_length > MAX_AUTH_BYTES) {
return (FALSE);
}
if (oa->oa_base == NULL) {
oa->oa_base = mem_alloc(oa->oa_length);
if (oa->oa_base == NULL)
return (FALSE);
}
buf = XDR_INLINE(xdrs, RNDUP(oa->oa_length));
if (buf == NULL) {
if (xdr_opaque(xdrs, oa->oa_base,
oa->oa_length) == FALSE) {
return (FALSE);
}
} else {
memmove(oa->oa_base, buf,
oa->oa_length);
/* no real need...
buf += RNDUP(oa->oa_length) /
sizeof (int32_t);
*/
}
}
return (TRUE);
}
}
if (
xdr_u_int32_t(xdrs, &(cmsg->rm_xid)) &&
xdr_enum(xdrs, (enum_t *)(void *)&(cmsg->rm_direction)) &&
(cmsg->rm_direction == CALL) &&
xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_rpcvers)) &&
(cmsg->rm_call.cb_rpcvers == RPC_MSG_VERSION) &&
xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_prog)) &&
xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_vers)) &&
xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_proc)) &&
xdr_opaque_auth(xdrs, &(cmsg->rm_call.cb_cred)) )
return (xdr_opaque_auth(xdrs, &(cmsg->rm_call.cb_verf)));
return (FALSE);
}