1 /* $NetBSD: rpcb_prot.c,v 1.3 2000/07/14 08:40:42 fvdl Exp $ */
4 * SPDX-License-Identifier: BSD-3-Clause
6 * Copyright (c) 2009, Sun Microsystems, Inc.
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10 * modification, are permitted provided that the following conditions are met:
11 * - Redistributions of source code must retain the above copyright notice,
12 * this list of conditions and the following disclaimer.
13 * - Redistributions in binary form must reproduce the above copyright notice,
14 * this list of conditions and the following disclaimer in the documentation
15 * and/or other materials provided with the distribution.
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17 * contributors may be used to endorse or promote products derived
18 * from this software without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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30 * POSSIBILITY OF SUCH DAMAGE.
33 * Copyright (c) 1986-1991 by Sun Microsystems Inc.
36 /* #ident "@(#)rpcb_prot.c 1.13 94/04/24 SMI" */
38 #if defined(LIBC_SCCS) && !defined(lint)
39 static char sccsid[] = "@(#)rpcb_prot.c 1.9 89/04/21 Copyr 1984 Sun Micro";
41 #include <sys/cdefs.h>
42 __FBSDID("$FreeBSD$");
46 * XDR routines for the rpcbinder version 3.
48 * Copyright (C) 1984, 1988, Sun Microsystems, Inc.
51 #include "namespace.h"
53 #include <rpc/types.h>
55 #include <rpc/rpcb_prot.h>
56 #include <rpc/rpc_com.h>
57 #include "un-namespace.h"
60 xdr_rpcb(XDR *xdrs, RPCB *objp)
62 if (!xdr_rpcprog(xdrs, &objp->r_prog)) {
65 if (!xdr_rpcvers(xdrs, &objp->r_vers)) {
68 if (!xdr_string(xdrs, &objp->r_netid, RPC_MAXDATASIZE)) {
71 if (!xdr_string(xdrs, &objp->r_addr, RPC_MAXDATASIZE)) {
74 if (!xdr_string(xdrs, &objp->r_owner, RPC_MAXDATASIZE)) {
81 * rpcblist_ptr implements a linked list. The RPCL definition from
86 * struct rpcblist *rpcb_next;
88 * typedef rpcblist *rpcblist_ptr;
90 * Recall that "pointers" in XDR are encoded as a boolean, indicating whether
91 * there's any data behind the pointer, followed by the data (if any exists).
92 * The boolean can be interpreted as ``more data follows me''; if FALSE then
93 * nothing follows the boolean; if TRUE then the boolean is followed by an
94 * actual struct rpcb, and another rpcblist_ptr (declared in RPCL as "struct
97 * This could be implemented via the xdr_pointer type, though this would
98 * result in one recursive call per element in the list. Rather than do that
99 * we can ``unwind'' the recursion into a while loop and use xdr_reference to
100 * serialize the rpcb elements.
104 xdr_rpcblist_ptr(XDR *xdrs, rpcblist_ptr *rp)
107 * more_elements is pre-computed in case the direction is
108 * XDR_ENCODE or XDR_FREE. more_elements is overwritten by
109 * xdr_bool when the direction is XDR_DECODE.
111 bool_t more_elements;
112 int freeing = (xdrs->x_op == XDR_FREE);
114 rpcblist_ptr next_copy;
118 more_elements = (bool_t)(*rp != NULL);
119 if (! xdr_bool(xdrs, &more_elements)) {
122 if (! more_elements) {
123 return (TRUE); /* we are done */
126 * the unfortunate side effect of non-recursion is that in
127 * the case of freeing we must remember the next object
128 * before we free the current object ...
131 next = (*rp)->rpcb_next;
132 if (! xdr_reference(xdrs, (caddr_t *)rp,
133 (u_int)sizeof (rpcblist), (xdrproc_t)xdr_rpcb)) {
140 * Note that in the subsequent iteration, next_copy
141 * gets nulled out by the xdr_reference
142 * but next itself survives.
145 rp = &((*rp)->rpcb_next);
152 * xdr_rpcblist() is specified to take a RPCBLIST **, but is identical in
153 * functionality to xdr_rpcblist_ptr().
156 xdr_rpcblist(XDR *xdrs, RPCBLIST **rp)
160 dummy = xdr_rpcblist_ptr(xdrs, (rpcblist_ptr *)rp);
166 xdr_rpcb_entry(XDR *xdrs, rpcb_entry *objp)
168 if (!xdr_string(xdrs, &objp->r_maddr, RPC_MAXDATASIZE)) {
171 if (!xdr_string(xdrs, &objp->r_nc_netid, RPC_MAXDATASIZE)) {
174 if (!xdr_u_int32_t(xdrs, &objp->r_nc_semantics)) {
177 if (!xdr_string(xdrs, &objp->r_nc_protofmly, RPC_MAXDATASIZE)) {
180 if (!xdr_string(xdrs, &objp->r_nc_proto, RPC_MAXDATASIZE)) {
187 xdr_rpcb_entry_list_ptr(XDR *xdrs, rpcb_entry_list_ptr *rp)
190 * more_elements is pre-computed in case the direction is
191 * XDR_ENCODE or XDR_FREE. more_elements is overwritten by
192 * xdr_bool when the direction is XDR_DECODE.
194 bool_t more_elements;
195 int freeing = (xdrs->x_op == XDR_FREE);
196 rpcb_entry_list_ptr next;
197 rpcb_entry_list_ptr next_copy;
201 more_elements = (bool_t)(*rp != NULL);
202 if (! xdr_bool(xdrs, &more_elements)) {
205 if (! more_elements) {
206 return (TRUE); /* we are done */
209 * the unfortunate side effect of non-recursion is that in
210 * the case of freeing we must remember the next object
211 * before we free the current object ...
214 next = (*rp)->rpcb_entry_next;
215 if (! xdr_reference(xdrs, (caddr_t *)rp,
216 (u_int)sizeof (rpcb_entry_list),
217 (xdrproc_t)xdr_rpcb_entry)) {
224 * Note that in the subsequent iteration, next_copy
225 * gets nulled out by the xdr_reference
226 * but next itself survives.
229 rp = &((*rp)->rpcb_entry_next);
236 * XDR remote call arguments
237 * written for XDR_ENCODE direction only
240 xdr_rpcb_rmtcallargs(XDR *xdrs, struct rpcb_rmtcallargs *p)
242 struct r_rpcb_rmtcallargs *objp =
243 (struct r_rpcb_rmtcallargs *)(void *)p;
244 u_int lenposition, argposition, position;
247 buf = XDR_INLINE(xdrs, 3 * BYTES_PER_XDR_UNIT);
249 if (!xdr_rpcprog(xdrs, &objp->prog)) {
252 if (!xdr_rpcvers(xdrs, &objp->vers)) {
255 if (!xdr_rpcproc(xdrs, &objp->proc)) {
259 IXDR_PUT_U_INT32(buf, objp->prog);
260 IXDR_PUT_U_INT32(buf, objp->vers);
261 IXDR_PUT_U_INT32(buf, objp->proc);
265 * All the jugglery for just getting the size of the arguments
267 lenposition = XDR_GETPOS(xdrs);
268 if (! xdr_u_int(xdrs, &(objp->args.args_len))) {
271 argposition = XDR_GETPOS(xdrs);
272 if (! (*objp->xdr_args)(xdrs, objp->args.args_val)) {
275 position = XDR_GETPOS(xdrs);
276 objp->args.args_len = (u_int)((u_long)position - (u_long)argposition);
277 XDR_SETPOS(xdrs, lenposition);
278 if (! xdr_u_int(xdrs, &(objp->args.args_len))) {
281 XDR_SETPOS(xdrs, position);
286 * XDR remote call results
287 * written for XDR_DECODE direction only
290 xdr_rpcb_rmtcallres(XDR *xdrs, struct rpcb_rmtcallres *p)
293 struct r_rpcb_rmtcallres *objp = (struct r_rpcb_rmtcallres *)(void *)p;
295 if (!xdr_string(xdrs, &objp->addr, RPC_MAXDATASIZE)) {
298 if (!xdr_u_int(xdrs, &objp->results.results_len)) {
301 dummy = (*(objp->xdr_res))(xdrs, objp->results.results_val);
306 xdr_netbuf(XDR *xdrs, struct netbuf *objp)
311 if (!xdr_u_int32_t(xdrs, (u_int32_t *) &objp->maxlen)) {
315 dummy = xdr_bytes(xdrs, (char **) pp,
316 (u_int *)&(objp->len), objp->maxlen);