[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>

/*
 * 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)
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 RM	36	#include <rpc/rpc.h>
	37
	38	/*
	39	* XDR a call message
	40	*/
	41	bool_t
e7fd8a39	42	xdr_callmsg (XDR xdrs, struct rpc_msg cmsg)
28f540f4	43	{
f8afba91	44	int32_t *buf;
e7fd8a39	45	struct opaque_auth *oa;
28f540f4	46
e7fd8a39 UD	47	if (xdrs->x_op == XDR_ENCODE)
	48	{
	49	if (cmsg->rm_call.cb_cred.oa_length > MAX_AUTH_BYTES)
	50	{
	51	return (FALSE);
	52	}
	53	if (cmsg->rm_call.cb_verf.oa_length > MAX_AUTH_BYTES)
	54	{
	55	return (FALSE);
	56	}
	57	buf = XDR_INLINE (xdrs, 8 * BYTES_PER_XDR_UNIT
	58	+ RNDUP (cmsg->rm_call.cb_cred.oa_length)
	59	+ 2 * BYTES_PER_XDR_UNIT
	60	+ RNDUP (cmsg->rm_call.cb_verf.oa_length));
	61	if (buf != NULL)
	62	{
701666b7 UD	63	(void) IXDR_PUT_LONG (buf, cmsg->rm_xid);
701666b7 UD	64	(void) IXDR_PUT_ENUM (buf, cmsg->rm_direction);
e7fd8a39	65	if (cmsg->rm_direction != CALL)
f8afba91	66	return FALSE;
701666b7	67	(void) IXDR_PUT_LONG (buf, cmsg->rm_call.cb_rpcvers);
e7fd8a39	68	if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION)
f8afba91	69	return FALSE;
701666b7 UD	70	(void) IXDR_PUT_LONG (buf, cmsg->rm_call.cb_prog);
	71	(void) IXDR_PUT_LONG (buf, cmsg->rm_call.cb_vers);
	72	(void) IXDR_PUT_LONG (buf, cmsg->rm_call.cb_proc);
e7fd8a39	73	oa = &cmsg->rm_call.cb_cred;
701666b7 UD	74	(void) IXDR_PUT_ENUM (buf, oa->oa_flavor);
701666b7 UD	75	(void) IXDR_PUT_INT32 (buf, oa->oa_length);
e7fd8a39 UD	76	if (oa->oa_length)
e7fd8a39 UD	77	{
9af652f6	78	memcpy ((caddr_t) buf, oa->oa_base, oa->oa_length);
f8afba91	79	buf = (int32_t ) ((char ) buf + RNDUP (oa->oa_length));
e7fd8a39 UD	80	}
e7fd8a39 UD	81	oa = &cmsg->rm_call.cb_verf;
701666b7 UD	82	(void) IXDR_PUT_ENUM (buf, oa->oa_flavor);
701666b7 UD	83	(void) IXDR_PUT_INT32 (buf, oa->oa_length);
e7fd8a39 UD	84	if (oa->oa_length)
e7fd8a39 UD	85	{
9af652f6	86	memcpy ((caddr_t) buf, oa->oa_base, oa->oa_length);
e7fd8a39	87	/* no real need....
a7ab6ec8	88	buf = (long ) ((char ) buf + RNDUP(oa->oa_length));
e7fd8a39 UD	89	*/
	90	}
	91	return TRUE;
	92	}
	93	}
	94	if (xdrs->x_op == XDR_DECODE)
	95	{
	96	buf = XDR_INLINE (xdrs, 8 * BYTES_PER_XDR_UNIT);
	97	if (buf != NULL)
	98	{
	99	cmsg->rm_xid = IXDR_GET_LONG (buf);
	100	cmsg->rm_direction = IXDR_GET_ENUM (buf, enum msg_type);
	101	if (cmsg->rm_direction != CALL)
	102	{
	103	return FALSE;
	104	}
	105	cmsg->rm_call.cb_rpcvers = IXDR_GET_LONG (buf);
	106	if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION)
	107	{
	108	return FALSE;
	109	}
	110	cmsg->rm_call.cb_prog = IXDR_GET_LONG (buf);
	111	cmsg->rm_call.cb_vers = IXDR_GET_LONG (buf);
	112	cmsg->rm_call.cb_proc = IXDR_GET_LONG (buf);
	113	oa = &cmsg->rm_call.cb_cred;
	114	oa->oa_flavor = IXDR_GET_ENUM (buf, enum_t);
f8afba91	115	oa->oa_length = IXDR_GET_INT32 (buf);
e7fd8a39 UD	116	if (oa->oa_length)
	117	{
	118	if (oa->oa_length > MAX_AUTH_BYTES)
f8afba91	119	return FALSE;
e7fd8a39 UD	120	if (oa->oa_base == NULL)
	121	{
	122	oa->oa_base = (caddr_t)
	123	mem_alloc (oa->oa_length);
28f540f4	124	}
e7fd8a39 UD	125	buf = XDR_INLINE (xdrs, RNDUP (oa->oa_length));
	126	if (buf == NULL)
	127	{
7b57bfe5 UD	128	if (xdr_opaque (xdrs, oa->oa_base,
7b57bfe5 UD	129	oa->oa_length) == FALSE)
f8afba91	130	return FALSE;
28f540f4	131	}
e7fd8a39 UD	132	else
e7fd8a39 UD	133	{
9af652f6	134	memcpy (oa->oa_base, (caddr_t) buf, oa->oa_length);
e7fd8a39 UD	135	/* no real need....
	136	buf = (long ) ((char ) buf
	137	+ RNDUP(oa->oa_length));
	138	*/
	139	}
	140	}
	141	oa = &cmsg->rm_call.cb_verf;
	142	buf = XDR_INLINE (xdrs, 2 * BYTES_PER_XDR_UNIT);
	143	if (buf == NULL)
	144	{
7b57bfe5 UD	145	if (xdr_enum (xdrs, &oa->oa_flavor) == FALSE \|\|
7b57bfe5 UD	146	xdr_u_int (xdrs, &oa->oa_length) == FALSE)
e7fd8a39 UD	147	{
	148	return FALSE;
	149	}
	150	}
	151	else
	152	{
	153	oa->oa_flavor = IXDR_GET_ENUM (buf, enum_t);
f8afba91	154	oa->oa_length = IXDR_GET_INT32 (buf);
e7fd8a39 UD	155	}
	156	if (oa->oa_length)
	157	{
	158	if (oa->oa_length > MAX_AUTH_BYTES)
f8afba91	159	return FALSE;
e7fd8a39 UD	160	if (oa->oa_base == NULL)
	161	{
	162	oa->oa_base = (caddr_t)
	163	mem_alloc (oa->oa_length);
	164	}
	165	buf = XDR_INLINE (xdrs, RNDUP (oa->oa_length));
	166	if (buf == NULL)
	167	{
7b57bfe5 UD	168	if (xdr_opaque (xdrs, oa->oa_base,
7b57bfe5 UD	169	oa->oa_length) == FALSE)
f8afba91	170	return FALSE;
e7fd8a39 UD	171	}
	172	else
	173	{
9af652f6	174	memcpy (oa->oa_base, (caddr_t) buf, oa->oa_length);
e7fd8a39 UD	175	/* no real need...
	176	buf = (long ) ((char ) buf
	177	+ RNDUP(oa->oa_length));
	178	*/
	179	}
	180	}
	181	return TRUE;
28f540f4	182	}
e7fd8a39 UD	183	}
e7fd8a39 UD	184	if (
7b57bfe5 UD	185	xdr_u_long (xdrs, &(cmsg->rm_xid)) &&
7b57bfe5 UD	186	xdr_enum (xdrs, (enum_t *) & (cmsg->rm_direction)) &&
e7fd8a39	187	(cmsg->rm_direction == CALL) &&
7b57bfe5	188	xdr_u_long (xdrs, &(cmsg->rm_call.cb_rpcvers)) &&
e7fd8a39	189	(cmsg->rm_call.cb_rpcvers == RPC_MSG_VERSION) &&
7b57bfe5 UD	190	xdr_u_long (xdrs, &(cmsg->rm_call.cb_prog)) &&
	191	xdr_u_long (xdrs, &(cmsg->rm_call.cb_vers)) &&
	192	xdr_u_long (xdrs, &(cmsg->rm_call.cb_proc)) &&
	193	xdr_opaque_auth (xdrs, &(cmsg->rm_call.cb_cred)))
	194	return xdr_opaque_auth (xdrs, &(cmsg->rm_call.cb_verf));
e7fd8a39	195	return FALSE;
28f540f4	196	}
7b57bfe5	197	libc_hidden_nolink (xdr_callmsg, GLIBC_2_0)