199 lines
6.0 KiB
C
199 lines
6.0 KiB
C
/*
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* rpc_callmsg.c
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*
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* Copyright (c) 2010, Oracle America, Inc.
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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
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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* * Neither the name of the "Oracle America, 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
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <string.h>
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#include <sys/param.h>
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#include <rpc/rpc.h>
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#include <shlib-compat.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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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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{
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if (cmsg->rm_call.cb_cred.oa_length > MAX_AUTH_BYTES)
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{
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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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{
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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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{
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(void) IXDR_PUT_LONG (buf, cmsg->rm_xid);
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(void) 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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(void) IXDR_PUT_LONG (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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(void) IXDR_PUT_LONG (buf, cmsg->rm_call.cb_prog);
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(void) IXDR_PUT_LONG (buf, cmsg->rm_call.cb_vers);
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(void) IXDR_PUT_LONG (buf, cmsg->rm_call.cb_proc);
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oa = &cmsg->rm_call.cb_cred;
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(void) IXDR_PUT_ENUM (buf, oa->oa_flavor);
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(void) IXDR_PUT_INT32 (buf, oa->oa_length);
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if (oa->oa_length)
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{
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memcpy ((caddr_t) buf, oa->oa_base, oa->oa_length);
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buf = (int32_t *) ((char *) buf + RNDUP (oa->oa_length));
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}
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oa = &cmsg->rm_call.cb_verf;
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(void) IXDR_PUT_ENUM (buf, oa->oa_flavor);
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(void) IXDR_PUT_INT32 (buf, oa->oa_length);
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if (oa->oa_length)
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{
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memcpy ((caddr_t) buf, oa->oa_base, oa->oa_length);
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/* no real need....
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buf = (long *) ((char *) buf + RNDUP(oa->oa_length));
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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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{
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buf = XDR_INLINE (xdrs, 8 * BYTES_PER_XDR_UNIT);
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if (buf != NULL)
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{
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cmsg->rm_xid = IXDR_GET_LONG (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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{
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return FALSE;
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}
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cmsg->rm_call.cb_rpcvers = IXDR_GET_LONG (buf);
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if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION)
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{
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return FALSE;
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}
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cmsg->rm_call.cb_prog = IXDR_GET_LONG (buf);
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cmsg->rm_call.cb_vers = IXDR_GET_LONG (buf);
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cmsg->rm_call.cb_proc = IXDR_GET_LONG (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 = IXDR_GET_INT32 (buf);
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if (oa->oa_length)
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{
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if (oa->oa_length > MAX_AUTH_BYTES)
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return FALSE;
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if (oa->oa_base == NULL)
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{
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oa->oa_base = (caddr_t)
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mem_alloc (oa->oa_length);
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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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{
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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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{
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memcpy (oa->oa_base, (caddr_t) buf, oa->oa_length);
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/* no real need....
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buf = (long *) ((char *) buf
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+ RNDUP(oa->oa_length));
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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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{
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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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{
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return FALSE;
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}
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}
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else
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{
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oa->oa_flavor = IXDR_GET_ENUM (buf, enum_t);
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oa->oa_length = IXDR_GET_INT32 (buf);
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}
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if (oa->oa_length)
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{
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if (oa->oa_length > MAX_AUTH_BYTES)
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return FALSE;
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if (oa->oa_base == NULL)
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{
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oa->oa_base = (caddr_t)
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mem_alloc (oa->oa_length);
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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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{
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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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{
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memcpy (oa->oa_base, (caddr_t) buf, oa->oa_length);
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/* no real need...
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buf = (long *) ((char *) buf
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+ RNDUP(oa->oa_length));
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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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if (
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xdr_u_long (xdrs, &(cmsg->rm_xid)) &&
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xdr_enum (xdrs, (enum_t *) & (cmsg->rm_direction)) &&
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(cmsg->rm_direction == CALL) &&
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xdr_u_long (xdrs, &(cmsg->rm_call.cb_rpcvers)) &&
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(cmsg->rm_call.cb_rpcvers == RPC_MSG_VERSION) &&
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xdr_u_long (xdrs, &(cmsg->rm_call.cb_prog)) &&
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xdr_u_long (xdrs, &(cmsg->rm_call.cb_vers)) &&
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xdr_u_long (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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libc_hidden_nolink_sunrpc (xdr_callmsg, GLIBC_2_0)
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