[thirdparty/glibc.git] / sunrpc / rpc_cmsg.c

/*
 * 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>
#include <shlib-compat.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_sunrpc (xdr_callmsg, GLIBC_2_0)
Commit	Line	Data
28f540f4	1	/*
a7ab6ec8	2	* rpc_callmsg.c
cb636bb2	3	*
a7ab6ec8	4	* Copyright (c) 2010, Oracle America, Inc.
28f540f4	5	*
a7ab6ec8 UD	6	* Redistribution and use in source and binary forms, with or without
	7	* modification, are permitted provided that the following conditions are
	8	* met:
ab09b221	9	*
a7ab6ec8 UD	10	* * Redistributions of source code must retain the above copyright
	11	* notice, this list of conditions and the following disclaimer.
	12	* * Redistributions in binary form must reproduce the above
	13	* copyright notice, this list of conditions and the following
	14	* disclaimer in the documentation and/or other materials
	15	* provided with the distribution.
	16	* * Neither the name of the "Oracle America, Inc." nor the names of its
	17	* contributors may be used to endorse or promote products derived
	18	* from this software without specific prior written permission.
ab09b221	19	*
a7ab6ec8 UD	20	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	21	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	22	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
	23	* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
	24	* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
	25	* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	26	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
	27	* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
	28	* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
	29	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
	30	* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	31	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28f540f4 RM	32	*/
28f540f4 RM	33
e7fd8a39	34	#include <string.h>
28f540f4	35	#include <sys/param.h>
28f540f4	36	#include <rpc/rpc.h>
82f43dd2	37	#include <shlib-compat.h>
28f540f4 RM	38
	39	/*
	40	* XDR a call message
	41	*/
	42	bool_t
e7fd8a39	43	xdr_callmsg (XDR xdrs, struct rpc_msg cmsg)
28f540f4	44	{
f8afba91	45	int32_t *buf;
e7fd8a39	46	struct opaque_auth *oa;
28f540f4	47
e7fd8a39 UD	48	if (xdrs->x_op == XDR_ENCODE)
	49	{
	50	if (cmsg->rm_call.cb_cred.oa_length > MAX_AUTH_BYTES)
	51	{
	52	return (FALSE);
	53	}
	54	if (cmsg->rm_call.cb_verf.oa_length > MAX_AUTH_BYTES)
	55	{
	56	return (FALSE);
	57	}
	58	buf = XDR_INLINE (xdrs, 8 * BYTES_PER_XDR_UNIT
	59	+ RNDUP (cmsg->rm_call.cb_cred.oa_length)
	60	+ 2 * BYTES_PER_XDR_UNIT
	61	+ RNDUP (cmsg->rm_call.cb_verf.oa_length));
	62	if (buf != NULL)
	63	{
701666b7 UD	64	(void) IXDR_PUT_LONG (buf, cmsg->rm_xid);
701666b7 UD	65	(void) IXDR_PUT_ENUM (buf, cmsg->rm_direction);
e7fd8a39	66	if (cmsg->rm_direction != CALL)
f8afba91	67	return FALSE;
701666b7	68	(void) IXDR_PUT_LONG (buf, cmsg->rm_call.cb_rpcvers);
e7fd8a39	69	if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION)
f8afba91	70	return FALSE;
701666b7 UD	71	(void) IXDR_PUT_LONG (buf, cmsg->rm_call.cb_prog);
	72	(void) IXDR_PUT_LONG (buf, cmsg->rm_call.cb_vers);
	73	(void) IXDR_PUT_LONG (buf, cmsg->rm_call.cb_proc);
e7fd8a39	74	oa = &cmsg->rm_call.cb_cred;
701666b7 UD	75	(void) IXDR_PUT_ENUM (buf, oa->oa_flavor);
701666b7 UD	76	(void) IXDR_PUT_INT32 (buf, oa->oa_length);
e7fd8a39 UD	77	if (oa->oa_length)
e7fd8a39 UD	78	{
9af652f6	79	memcpy ((caddr_t) buf, oa->oa_base, oa->oa_length);
f8afba91	80	buf = (int32_t ) ((char ) buf + RNDUP (oa->oa_length));
e7fd8a39 UD	81	}
e7fd8a39 UD	82	oa = &cmsg->rm_call.cb_verf;
701666b7 UD	83	(void) IXDR_PUT_ENUM (buf, oa->oa_flavor);
701666b7 UD	84	(void) IXDR_PUT_INT32 (buf, oa->oa_length);
e7fd8a39 UD	85	if (oa->oa_length)
e7fd8a39 UD	86	{
9af652f6	87	memcpy ((caddr_t) buf, oa->oa_base, oa->oa_length);
e7fd8a39	88	/* no real need....
a7ab6ec8	89	buf = (long ) ((char ) buf + RNDUP(oa->oa_length));
e7fd8a39 UD	90	*/
	91	}
	92	return TRUE;
	93	}
	94	}
	95	if (xdrs->x_op == XDR_DECODE)
	96	{
	97	buf = XDR_INLINE (xdrs, 8 * BYTES_PER_XDR_UNIT);
	98	if (buf != NULL)
	99	{
	100	cmsg->rm_xid = IXDR_GET_LONG (buf);
	101	cmsg->rm_direction = IXDR_GET_ENUM (buf, enum msg_type);
	102	if (cmsg->rm_direction != CALL)
	103	{
	104	return FALSE;
	105	}
	106	cmsg->rm_call.cb_rpcvers = IXDR_GET_LONG (buf);
	107	if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION)
	108	{
	109	return FALSE;
	110	}
	111	cmsg->rm_call.cb_prog = IXDR_GET_LONG (buf);
	112	cmsg->rm_call.cb_vers = IXDR_GET_LONG (buf);
	113	cmsg->rm_call.cb_proc = IXDR_GET_LONG (buf);
	114	oa = &cmsg->rm_call.cb_cred;
	115	oa->oa_flavor = IXDR_GET_ENUM (buf, enum_t);
f8afba91	116	oa->oa_length = IXDR_GET_INT32 (buf);
e7fd8a39 UD	117	if (oa->oa_length)
	118	{
	119	if (oa->oa_length > MAX_AUTH_BYTES)
f8afba91	120	return FALSE;
e7fd8a39 UD	121	if (oa->oa_base == NULL)
	122	{
	123	oa->oa_base = (caddr_t)
	124	mem_alloc (oa->oa_length);
28f540f4	125	}
e7fd8a39 UD	126	buf = XDR_INLINE (xdrs, RNDUP (oa->oa_length));
	127	if (buf == NULL)
	128	{
7b57bfe5 UD	129	if (xdr_opaque (xdrs, oa->oa_base,
7b57bfe5 UD	130	oa->oa_length) == FALSE)
f8afba91	131	return FALSE;
28f540f4	132	}
e7fd8a39 UD	133	else
e7fd8a39 UD	134	{
9af652f6	135	memcpy (oa->oa_base, (caddr_t) buf, oa->oa_length);
e7fd8a39 UD	136	/* no real need....
	137	buf = (long ) ((char ) buf
	138	+ RNDUP(oa->oa_length));
	139	*/
	140	}
	141	}
	142	oa = &cmsg->rm_call.cb_verf;
	143	buf = XDR_INLINE (xdrs, 2 * BYTES_PER_XDR_UNIT);
	144	if (buf == NULL)
	145	{
7b57bfe5 UD	146	if (xdr_enum (xdrs, &oa->oa_flavor) == FALSE \|\|
7b57bfe5 UD	147	xdr_u_int (xdrs, &oa->oa_length) == FALSE)
e7fd8a39 UD	148	{
	149	return FALSE;
	150	}
	151	}
	152	else
	153	{
	154	oa->oa_flavor = IXDR_GET_ENUM (buf, enum_t);
f8afba91	155	oa->oa_length = IXDR_GET_INT32 (buf);
e7fd8a39 UD	156	}
	157	if (oa->oa_length)
	158	{
	159	if (oa->oa_length > MAX_AUTH_BYTES)
f8afba91	160	return FALSE;
e7fd8a39 UD	161	if (oa->oa_base == NULL)
	162	{
	163	oa->oa_base = (caddr_t)
	164	mem_alloc (oa->oa_length);
	165	}
	166	buf = XDR_INLINE (xdrs, RNDUP (oa->oa_length));
	167	if (buf == NULL)
	168	{
7b57bfe5 UD	169	if (xdr_opaque (xdrs, oa->oa_base,
7b57bfe5 UD	170	oa->oa_length) == FALSE)
f8afba91	171	return FALSE;
e7fd8a39 UD	172	}
	173	else
	174	{
9af652f6	175	memcpy (oa->oa_base, (caddr_t) buf, oa->oa_length);
e7fd8a39 UD	176	/* no real need...
	177	buf = (long ) ((char ) buf
	178	+ RNDUP(oa->oa_length));
	179	*/
	180	}
	181	}
	182	return TRUE;
28f540f4	183	}
e7fd8a39 UD	184	}
e7fd8a39 UD	185	if (
7b57bfe5 UD	186	xdr_u_long (xdrs, &(cmsg->rm_xid)) &&
7b57bfe5 UD	187	xdr_enum (xdrs, (enum_t *) & (cmsg->rm_direction)) &&
e7fd8a39	188	(cmsg->rm_direction == CALL) &&
7b57bfe5	189	xdr_u_long (xdrs, &(cmsg->rm_call.cb_rpcvers)) &&
e7fd8a39	190	(cmsg->rm_call.cb_rpcvers == RPC_MSG_VERSION) &&
7b57bfe5 UD	191	xdr_u_long (xdrs, &(cmsg->rm_call.cb_prog)) &&
	192	xdr_u_long (xdrs, &(cmsg->rm_call.cb_vers)) &&
	193	xdr_u_long (xdrs, &(cmsg->rm_call.cb_proc)) &&
	194	xdr_opaque_auth (xdrs, &(cmsg->rm_call.cb_cred)))
	195	return xdr_opaque_auth (xdrs, &(cmsg->rm_call.cb_verf));
e7fd8a39	196	return FALSE;
28f540f4	197	}
021db4be	198	libc_hidden_nolink_sunrpc (xdr_callmsg, GLIBC_2_0)