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/* $NetBSD: rpc_callmsg.c,v 1.16 2000/07/14 08:40:42 fvdl Exp $ */
/*
* Sun RPC is a product of Sun Microsystems, Inc. and is provided for
* unrestricted use provided that this legend is included on all tape
* media and as a part of the software program in whole or part. Users
* may copy or modify Sun RPC without charge, but are not authorized
* to license or distribute it to anyone else except as part of a product or
* program developed by the user.
*
* SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
* WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
* PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
*
* Sun RPC is provided with no support and without any obligation on the
* part of Sun Microsystems, Inc. to assist in its use, correction,
* modification or enhancement.
*
* SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
* INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
* OR ANY PART THEREOF.
*
* In no event will Sun Microsystems, Inc. be liable for any lost revenue
* or profits or other special, indirect and consequential damages, even if
* Sun has been advised of the possibility of such damages.
*
* Sun Microsystems, Inc.
* 2550 Garcia Avenue
* Mountain View, California 94043
*/
#if defined(LIBC_SCCS) && !defined(lint)
static char *sccsid2 = "@(#)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";
#endif
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/sys/rpc/rpc_callmsg.c 177633 2008-03-26 15:23:12Z dfr $");
/*
* rpc_callmsg.c
*
* Copyright (C) 1984, Sun Microsystems, Inc.
*
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <rpc/rpc.h>
/*
* XDR a call message
*/
bool_t
xdr_callmsg(XDR *xdrs, struct rpc_msg *cmsg)
{
enum msg_type *prm_direction;
int32_t *buf;
struct opaque_auth *oa;
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) {
memcpy(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) {
memcpy(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_UINT32(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_UINT32(buf);
if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) {
return (FALSE);
}
cmsg->rm_call.cb_prog = IXDR_GET_UINT32(buf);
cmsg->rm_call.cb_vers = IXDR_GET_UINT32(buf);
cmsg->rm_call.cb_proc = IXDR_GET_UINT32(buf);
oa = &cmsg->rm_call.cb_cred;
oa->oa_flavor = IXDR_GET_ENUM(buf, enum_t);
oa->oa_length = (u_int)IXDR_GET_UINT32(buf);
if (oa->oa_length) {
if (oa->oa_length > MAX_AUTH_BYTES) {
return (FALSE);
}
if (oa->oa_base == NULL) {
oa->oa_base = (caddr_t)
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 {
memcpy(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_UINT32(buf);
}
if (oa->oa_length) {
if (oa->oa_length > MAX_AUTH_BYTES) {
return (FALSE);
}
if (oa->oa_base == NULL) {
oa->oa_base = (caddr_t)
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 {
memcpy(oa->oa_base, buf,
oa->oa_length);
/* no real need...
buf += RNDUP(oa->oa_length) /
sizeof (int32_t);
*/
}
}
return (TRUE);
}
}
prm_direction = &cmsg->rm_direction;
if (
xdr_uint32_t(xdrs, &(cmsg->rm_xid)) &&
xdr_enum(xdrs, (enum_t *) prm_direction) &&
(cmsg->rm_direction == CALL) &&
xdr_uint32_t(xdrs, &(cmsg->rm_call.cb_rpcvers)) &&
(cmsg->rm_call.cb_rpcvers == RPC_MSG_VERSION) &&
xdr_uint32_t(xdrs, &(cmsg->rm_call.cb_prog)) &&
xdr_uint32_t(xdrs, &(cmsg->rm_call.cb_vers)) &&
xdr_uint32_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);
}