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/*
* rpc_callmsg.c
*
* 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 <string.h>
#include <sys/param.h>
#include <rpc/rpc.h>
/*
* XDR a call message
*/
bool_t
xdr_callmsg (XDR *xdrs, struct rpc_msg *cmsg)
{
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)
{
(void) IXDR_PUT_LONG (buf, cmsg->rm_xid);
(void) IXDR_PUT_ENUM (buf, cmsg->rm_direction);
if (cmsg->rm_direction != CALL)
return FALSE;
(void) IXDR_PUT_LONG (buf, cmsg->rm_call.cb_rpcvers);
if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION)
return FALSE;
(void) IXDR_PUT_LONG (buf, cmsg->rm_call.cb_prog);
(void) IXDR_PUT_LONG (buf, cmsg->rm_call.cb_vers);
(void) IXDR_PUT_LONG (buf, cmsg->rm_call.cb_proc);
oa = &cmsg->rm_call.cb_cred;
(void) IXDR_PUT_ENUM (buf, oa->oa_flavor);
(void) IXDR_PUT_INT32 (buf, oa->oa_length);
if (oa->oa_length)
{
memcpy ((caddr_t) buf, oa->oa_base, oa->oa_length);
buf = (int32_t *) ((char *) buf + RNDUP (oa->oa_length));
}
oa = &cmsg->rm_call.cb_verf;
(void) IXDR_PUT_ENUM (buf, oa->oa_flavor);
(void) IXDR_PUT_INT32 (buf, oa->oa_length);
if (oa->oa_length)
{
memcpy ((caddr_t) buf, oa->oa_base, oa->oa_length);
/* no real need....
buf = (long *) ((char *) buf + RNDUP(oa->oa_length));
*/
}
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_LONG (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_LONG (buf);
if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION)
{
return FALSE;
}
cmsg->rm_call.cb_prog = IXDR_GET_LONG (buf);
cmsg->rm_call.cb_vers = IXDR_GET_LONG (buf);
cmsg->rm_call.cb_proc = IXDR_GET_LONG (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)
return FALSE;
if (oa->oa_base == NULL)
{
oa->oa_base = (caddr_t)
mem_alloc (oa->oa_length);
}
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, (caddr_t) buf, oa->oa_length);
/* no real need....
buf = (long *) ((char *) buf
+ RNDUP(oa->oa_length));
*/
}
}
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 = IXDR_GET_INT32 (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);
}
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, (caddr_t) buf, oa->oa_length);
/* no real need...
buf = (long *) ((char *) buf
+ RNDUP(oa->oa_length));
*/
}
}
return TRUE;
}
}
if (
xdr_u_long (xdrs, &(cmsg->rm_xid)) &&
xdr_enum (xdrs, (enum_t *) & (cmsg->rm_direction)) &&
(cmsg->rm_direction == CALL) &&
xdr_u_long (xdrs, &(cmsg->rm_call.cb_rpcvers)) &&
(cmsg->rm_call.cb_rpcvers == RPC_MSG_VERSION) &&
xdr_u_long (xdrs, &(cmsg->rm_call.cb_prog)) &&
xdr_u_long (xdrs, &(cmsg->rm_call.cb_vers)) &&
xdr_u_long (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;
}
libc_hidden_nolink (xdr_callmsg, GLIBC_2_0)
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