rpc_callmsg.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*
* Copyright 1999 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
/*
* Portions of this source code were derived from Berkeley
* 4.3 BSD under license from the Regents of the University of
* California.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* rpc_callmsg.c
*
*/
#include <sys/param.h>
#include <rpc/trace.h>
#ifdef KERNEL
#include <rpc/types.h> /* spell 'em out for make depend */
#include <rpc/xdr.h>
#include <rpc/auth.h>
#include <rpc/clnt.h>
#include <rpc/rpc_msg.h>
#else
#include <rpc/rpc.h>
#endif
#include <syslog.h>
#include <sys/byteorder.h>
extern bool_t xdr_opaque_auth();
extern char *malloc();
/*
* XDR a call message
*/
bool_t
xdr_callmsg(xdrs, cmsg)
register XDR *xdrs;
register struct rpc_msg *cmsg;
{
register rpc_inline_t *buf;
register struct opaque_auth *oa;
bool_t dummy;
trace1(TR_xdr_callmsg, 0);
if (xdrs->x_op == XDR_ENCODE) {
if (cmsg->rm_call.cb_cred.oa_length > MAX_AUTH_BYTES) {
trace1(TR_xdr_callmsg, 1);
return (FALSE);
}
if (cmsg->rm_call.cb_verf.oa_length > MAX_AUTH_BYTES) {
trace1(TR_xdr_callmsg, 1);
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) {
trace1(TR_xdr_callmsg, 1);
return (FALSE);
}
IXDR_PUT_INT32(buf, cmsg->rm_call.cb_rpcvers);
if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) {
trace1(TR_xdr_callmsg, 1);
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) {
(void) memcpy((caddr_t)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) {
(void) memcpy((caddr_t)buf, oa->oa_base,
oa->oa_length);
/*
* no real need....
* buf += RNDUP(oa->oa_length) / sizeof
* (int32_t);
*/
}
trace1(TR_xdr_callmsg, 1);
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_INT32(buf);
cmsg->rm_direction = IXDR_GET_ENUM(buf, enum msg_type);
if (cmsg->rm_direction != CALL) {
trace1(TR_xdr_callmsg, 1);
return (FALSE);
}
cmsg->rm_call.cb_rpcvers = IXDR_GET_INT32(buf);
if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) {
trace1(TR_xdr_callmsg, 1);
return (FALSE);
}
cmsg->rm_call.cb_prog = IXDR_GET_INT32(buf);
cmsg->rm_call.cb_vers = IXDR_GET_INT32(buf);
cmsg->rm_call.cb_proc = IXDR_GET_INT32(buf);
oa = &cmsg->rm_call.cb_cred;
oa->oa_flavor = IXDR_GET_ENUM(buf, enum_t);
oa->oa_length = IXDR_GET_INT32(buf);
if (oa->oa_length) {
if (oa->oa_length > MAX_AUTH_BYTES) {
trace1(TR_xdr_callmsg, 1);
return (FALSE);
}
if (oa->oa_base == NULL) {
oa->oa_base = (caddr_t)
mem_alloc(oa->oa_length);
if (oa->oa_base == NULL) {
syslog(LOG_ERR,
"xdr_callmsg : "
"out of memory.");
trace1(TR_xdr_callmsg, 1);
return (FALSE);
}
}
buf = XDR_INLINE(xdrs, RNDUP(oa->oa_length));
if (buf == NULL) {
if (xdr_opaque(xdrs, oa->oa_base,
oa->oa_length) == FALSE) {
trace1(TR_xdr_callmsg, 1);
return (FALSE);
}
} else {
(void) memcpy(oa->oa_base,
(caddr_t)buf, (int)oa->oa_length);
/*
* no real need....
* buf += RNDUP(oa->oa_length) /
* (int) 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) {
trace1(TR_xdr_callmsg, 1);
return (FALSE);
}
} else {
oa->oa_flavor = IXDR_GET_ENUM(buf, enum_t);
oa->oa_length = IXDR_GET_INT32(buf);
}
if (oa->oa_length) {
if (oa->oa_length > MAX_AUTH_BYTES) {
trace1(TR_xdr_callmsg, 1);
return (FALSE);
}
if (oa->oa_base == NULL) {
oa->oa_base = (caddr_t)
mem_alloc(oa->oa_length);
if (oa->oa_base == NULL) {
syslog(LOG_ERR,
"xdr_callmsg : "
"out of memory.");
trace1(TR_xdr_callmsg, 1);
return (FALSE);
}
}
buf = XDR_INLINE(xdrs, RNDUP(oa->oa_length));
if (buf == NULL) {
if (xdr_opaque(xdrs, oa->oa_base,
oa->oa_length) == FALSE) {
trace1(TR_xdr_callmsg, 1);
return (FALSE);
}
} else {
(void) memcpy(oa->oa_base,
(caddr_t)buf, (int)oa->oa_length);
/*
* no real need...
* buf += RNDUP(oa->oa_length) /
* (int) sizeof (int32_t);
*/
}
}
trace1(TR_xdr_callmsg, 1);
return (TRUE);
}
}
if (xdr_u_int(xdrs, &(cmsg->rm_xid)) &&
xdr_enum(xdrs, (enum_t *)&(cmsg->rm_direction)) &&
(cmsg->rm_direction == CALL) &&
xdr_u_int(xdrs, (u_int *)&(cmsg->rm_call.cb_rpcvers)) &&
(cmsg->rm_call.cb_rpcvers == RPC_MSG_VERSION) &&
xdr_u_int(xdrs, (u_int *)&(cmsg->rm_call.cb_prog)) &&
xdr_u_int(xdrs, (u_int *)&(cmsg->rm_call.cb_vers)) &&
xdr_u_int(xdrs, (u_int *)&(cmsg->rm_call.cb_proc)) &&
xdr_opaque_auth(xdrs, &(cmsg->rm_call.cb_cred))) {
dummy = xdr_opaque_auth(xdrs, &(cmsg->rm_call.cb_verf));
trace1(TR_xdr_callmsg, 1);
return (dummy);
}
trace1(TR_xdr_callmsg, 1);
return (FALSE);
}