3 * Copyright (c) 2009, Sun Microsystems, Inc.
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8 * - Redistributions of source code must retain the above copyright notice,
9 * this list of conditions and the following disclaimer.
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11 * this list of conditions and the following disclaimer in the documentation
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20 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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30 * Copyright (c) 1986-1991 by Sun Microsystems Inc.
35 * XDR routines for the rpcbinder version 3.
37 * Copyright (C) 1984, 1988, Sun Microsystems, Inc.
41 #include <rpc/types.h>
43 #include <rpc/rpcb_prot.h>
50 if (!xdr_u_int32_t(xdrs, &objp->r_prog)) {
53 if (!xdr_u_int32_t(xdrs, &objp->r_vers)) {
56 if (!xdr_string(xdrs, &objp->r_netid, (u_int)~0)) {
59 if (!xdr_string(xdrs, &objp->r_addr, (u_int)~0)) {
62 if (!xdr_string(xdrs, &objp->r_owner, (u_int)~0)) {
69 * rpcblist_ptr implements a linked list. The RPCL definition from
74 * struct rpcblist *rpcb_next;
76 * typedef rpcblist *rpcblist_ptr;
78 * Recall that "pointers" in XDR are encoded as a boolean, indicating whether
79 * there's any data behind the pointer, followed by the data (if any exists).
80 * The boolean can be interpreted as ``more data follows me''; if FALSE then
81 * nothing follows the boolean; if TRUE then the boolean is followed by an
82 * actual struct rpcb, and another rpcblist_ptr (declared in RPCL as "struct
85 * This could be implemented via the xdr_pointer type, though this would
86 * result in one recursive call per element in the list. Rather than do that
87 * we can ``unwind'' the recursion into a while loop and use xdr_reference to
88 * serialize the rpcb elements.
92 xdr_rpcblist_ptr(xdrs, rp)
97 * more_elements is pre-computed in case the direction is
98 * XDR_ENCODE or XDR_FREE. more_elements is overwritten by
99 * xdr_bool when the direction is XDR_DECODE.
101 bool_t more_elements;
102 int freeing = (xdrs->x_op == XDR_FREE);
104 rpcblist_ptr next_copy;
108 more_elements = (bool_t)(*rp != NULL);
109 if (! xdr_bool(xdrs, &more_elements)) {
112 if (! more_elements) {
113 return (TRUE); /* we are done */
116 * the unfortunate side effect of non-recursion is that in
117 * the case of freeing we must remember the next object
118 * before we free the current object ...
121 next = (*rp)->rpcb_next;
122 if (! xdr_reference(xdrs, (caddr_t *)rp,
123 (u_int)sizeof (rpcblist), (xdrproc_t)xdr_rpcb)) {
130 * Note that in the subsequent iteration, next_copy
131 * gets nulled out by the xdr_reference
132 * but next itself survives.
135 rp = &((*rp)->rpcb_next);
142 * xdr_rpcblist() is specified to take a RPCBLIST **, but is identical in
143 * functionality to xdr_rpcblist_ptr().
146 xdr_rpcblist(xdrs, rp)
152 dummy = xdr_rpcblist_ptr(xdrs, (rpcblist_ptr *)rp);
158 xdr_rpcb_entry(xdrs, objp)
162 if (!xdr_string(xdrs, &objp->r_maddr, (u_int)~0)) {
165 if (!xdr_string(xdrs, &objp->r_nc_netid, (u_int)~0)) {
168 if (!xdr_u_int32_t(xdrs, &objp->r_nc_semantics)) {
171 if (!xdr_string(xdrs, &objp->r_nc_protofmly, (u_int)~0)) {
174 if (!xdr_string(xdrs, &objp->r_nc_proto, (u_int)~0)) {
181 xdr_rpcb_entry_list_ptr(xdrs, rp)
183 rpcb_entry_list_ptr *rp;
186 * more_elements is pre-computed in case the direction is
187 * XDR_ENCODE or XDR_FREE. more_elements is overwritten by
188 * xdr_bool when the direction is XDR_DECODE.
190 bool_t more_elements;
191 int freeing = (xdrs->x_op == XDR_FREE);
192 rpcb_entry_list_ptr next;
193 rpcb_entry_list_ptr next_copy;
197 more_elements = (bool_t)(*rp != NULL);
198 if (! xdr_bool(xdrs, &more_elements)) {
201 if (! more_elements) {
202 return (TRUE); /* we are done */
205 * the unfortunate side effect of non-recursion is that in
206 * the case of freeing we must remember the next object
207 * before we free the current object ...
210 next = (*rp)->rpcb_entry_next;
211 if (! xdr_reference(xdrs, (caddr_t *)rp,
212 (u_int)sizeof (rpcb_entry_list),
213 (xdrproc_t)xdr_rpcb_entry)) {
220 * Note that in the subsequent iteration, next_copy
221 * gets nulled out by the xdr_reference
222 * but next itself survives.
225 rp = &((*rp)->rpcb_entry_next);
232 * XDR remote call arguments
233 * written for XDR_ENCODE direction only
236 xdr_rpcb_rmtcallargs(xdrs, p)
238 struct rpcb_rmtcallargs *p;
240 struct r_rpcb_rmtcallargs *objp =
241 (struct r_rpcb_rmtcallargs *)(void *)p;
242 u_int lenposition, argposition, position;
245 buf = XDR_INLINE(xdrs, 3 * BYTES_PER_XDR_UNIT);
247 if (!xdr_u_int32_t(xdrs, &objp->prog)) {
250 if (!xdr_u_int32_t(xdrs, &objp->vers)) {
253 if (!xdr_u_int32_t(xdrs, &objp->proc)) {
257 IXDR_PUT_U_INT32(buf, objp->prog);
258 IXDR_PUT_U_INT32(buf, objp->vers);
259 IXDR_PUT_U_INT32(buf, objp->proc);
263 * All the jugglery for just getting the size of the arguments
265 lenposition = XDR_GETPOS(xdrs);
266 if (! xdr_u_int(xdrs, &(objp->args.args_len))) {
269 argposition = XDR_GETPOS(xdrs);
270 if (! (*objp->xdr_args)(xdrs, objp->args.args_val)) {
273 position = XDR_GETPOS(xdrs);
274 objp->args.args_len = (u_int)((u_long)position - (u_long)argposition);
275 XDR_SETPOS(xdrs, lenposition);
276 if (! xdr_u_int(xdrs, &(objp->args.args_len))) {
279 XDR_SETPOS(xdrs, position);
284 * XDR remote call results
285 * written for XDR_DECODE direction only
288 xdr_rpcb_rmtcallres(xdrs, p)
290 struct rpcb_rmtcallres *p;
293 struct r_rpcb_rmtcallres *objp = (struct r_rpcb_rmtcallres *)(void *)p;
295 if (!xdr_string(xdrs, &objp->addr, (u_int)~0)) {
298 if (!xdr_u_int(xdrs, &objp->results.results_len)) {
301 dummy = (*(objp->xdr_res))(xdrs, objp->results.results_val);
306 xdr_netbuf(xdrs, objp)
312 if (!xdr_u_int32_t(xdrs, (u_int32_t *) &objp->maxlen)) {
315 dummy = xdr_bytes(xdrs, (char **)&(objp->buf),
316 (u_int *)&(objp->len), objp->maxlen);