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202 lines
6.3 KiB
C
202 lines
6.3 KiB
C
/* $NetBSD: rpc_callmsg.c,v 1.16 2000/07/14 08:40:42 fvdl Exp $ */
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/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 2009, Sun Microsystems, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* - Neither the name of Sun Microsystems, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#if defined(LIBC_SCCS) && !defined(lint)
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static char *sccsid2 = "@(#)rpc_callmsg.c 1.4 87/08/11 Copyr 1984 Sun Micro";
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static char *sccsid = "@(#)rpc_callmsg.c 2.1 88/07/29 4.0 RPCSRC";
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#endif
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/*
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* rpc_callmsg.c
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*
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* Copyright (C) 1984, Sun Microsystems, Inc.
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*
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/malloc.h>
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#include <rpc/rpc.h>
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/*
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* XDR a call message
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*/
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bool_t
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xdr_callmsg(XDR *xdrs, struct rpc_msg *cmsg)
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{
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enum msg_type *prm_direction;
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int32_t *buf;
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struct opaque_auth *oa;
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if (xdrs->x_op == XDR_ENCODE) {
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if (cmsg->rm_call.cb_cred.oa_length > MAX_AUTH_BYTES) {
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return (FALSE);
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}
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if (cmsg->rm_call.cb_verf.oa_length > MAX_AUTH_BYTES) {
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return (FALSE);
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}
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buf = XDR_INLINE(xdrs, 8 * BYTES_PER_XDR_UNIT
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+ RNDUP(cmsg->rm_call.cb_cred.oa_length)
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+ 2 * BYTES_PER_XDR_UNIT
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+ RNDUP(cmsg->rm_call.cb_verf.oa_length));
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if (buf != NULL) {
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IXDR_PUT_INT32(buf, cmsg->rm_xid);
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IXDR_PUT_ENUM(buf, cmsg->rm_direction);
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if (cmsg->rm_direction != CALL) {
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return (FALSE);
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}
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IXDR_PUT_INT32(buf, cmsg->rm_call.cb_rpcvers);
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if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) {
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return (FALSE);
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}
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IXDR_PUT_INT32(buf, cmsg->rm_call.cb_prog);
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IXDR_PUT_INT32(buf, cmsg->rm_call.cb_vers);
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IXDR_PUT_INT32(buf, cmsg->rm_call.cb_proc);
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oa = &cmsg->rm_call.cb_cred;
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IXDR_PUT_ENUM(buf, oa->oa_flavor);
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IXDR_PUT_INT32(buf, oa->oa_length);
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if (oa->oa_length) {
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memcpy(buf, oa->oa_base, oa->oa_length);
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buf += RNDUP(oa->oa_length) / sizeof (int32_t);
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}
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oa = &cmsg->rm_call.cb_verf;
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IXDR_PUT_ENUM(buf, oa->oa_flavor);
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IXDR_PUT_INT32(buf, oa->oa_length);
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if (oa->oa_length) {
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memcpy(buf, oa->oa_base, oa->oa_length);
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/* no real need....
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buf += RNDUP(oa->oa_length) / sizeof (int32_t);
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*/
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}
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return (TRUE);
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}
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}
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if (xdrs->x_op == XDR_DECODE) {
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buf = XDR_INLINE(xdrs, 8 * BYTES_PER_XDR_UNIT);
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if (buf != NULL) {
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cmsg->rm_xid = IXDR_GET_UINT32(buf);
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cmsg->rm_direction = IXDR_GET_ENUM(buf, enum msg_type);
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if (cmsg->rm_direction != CALL) {
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return (FALSE);
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}
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cmsg->rm_call.cb_rpcvers = IXDR_GET_UINT32(buf);
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if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) {
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return (FALSE);
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}
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cmsg->rm_call.cb_prog = IXDR_GET_UINT32(buf);
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cmsg->rm_call.cb_vers = IXDR_GET_UINT32(buf);
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cmsg->rm_call.cb_proc = IXDR_GET_UINT32(buf);
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oa = &cmsg->rm_call.cb_cred;
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oa->oa_flavor = IXDR_GET_ENUM(buf, enum_t);
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oa->oa_length = (u_int)IXDR_GET_UINT32(buf);
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if (oa->oa_length) {
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if (oa->oa_length > MAX_AUTH_BYTES) {
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return (FALSE);
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}
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if (oa->oa_base == NULL) {
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oa->oa_base = (caddr_t)
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mem_alloc(oa->oa_length);
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if (oa->oa_base == NULL)
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return (FALSE);
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}
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buf = XDR_INLINE(xdrs, RNDUP(oa->oa_length));
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if (buf == NULL) {
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if (xdr_opaque(xdrs, oa->oa_base,
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oa->oa_length) == FALSE) {
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return (FALSE);
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}
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} else {
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memcpy(oa->oa_base, buf,
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oa->oa_length);
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/* no real need....
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buf += RNDUP(oa->oa_length) /
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sizeof (int32_t);
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*/
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}
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}
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oa = &cmsg->rm_call.cb_verf;
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buf = XDR_INLINE(xdrs, 2 * BYTES_PER_XDR_UNIT);
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if (buf == NULL) {
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if (xdr_enum(xdrs, &oa->oa_flavor) == FALSE ||
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xdr_u_int(xdrs, &oa->oa_length) == FALSE) {
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return (FALSE);
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}
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} else {
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oa->oa_flavor = IXDR_GET_ENUM(buf, enum_t);
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oa->oa_length = (u_int)IXDR_GET_UINT32(buf);
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}
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if (oa->oa_length) {
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if (oa->oa_length > MAX_AUTH_BYTES) {
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return (FALSE);
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}
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if (oa->oa_base == NULL) {
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oa->oa_base = (caddr_t)
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mem_alloc(oa->oa_length);
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if (oa->oa_base == NULL)
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return (FALSE);
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}
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buf = XDR_INLINE(xdrs, RNDUP(oa->oa_length));
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if (buf == NULL) {
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if (xdr_opaque(xdrs, oa->oa_base,
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oa->oa_length) == FALSE) {
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return (FALSE);
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}
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} else {
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memcpy(oa->oa_base, buf,
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oa->oa_length);
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/* no real need...
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buf += RNDUP(oa->oa_length) /
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sizeof (int32_t);
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*/
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}
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}
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return (TRUE);
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}
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}
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prm_direction = &cmsg->rm_direction;
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if (
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xdr_uint32_t(xdrs, &(cmsg->rm_xid)) &&
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xdr_enum(xdrs, (enum_t *) prm_direction) &&
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(cmsg->rm_direction == CALL) &&
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xdr_uint32_t(xdrs, &(cmsg->rm_call.cb_rpcvers)) &&
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(cmsg->rm_call.cb_rpcvers == RPC_MSG_VERSION) &&
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xdr_uint32_t(xdrs, &(cmsg->rm_call.cb_prog)) &&
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xdr_uint32_t(xdrs, &(cmsg->rm_call.cb_vers)) &&
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xdr_uint32_t(xdrs, &(cmsg->rm_call.cb_proc)) &&
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xdr_opaque_auth(xdrs, &(cmsg->rm_call.cb_cred)) )
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return (xdr_opaque_auth(xdrs, &(cmsg->rm_call.cb_verf)));
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return (FALSE);
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}
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