1 /* $NetBSD: pmap_svc.c,v 1.2 2000/10/20 11:49:40 fvdl Exp $ */
5 * Copyright (c) 2009, Sun Microsystems, Inc.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are met:
10 * - Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer.
12 * - Redistributions in binary form must reproduce the above copyright notice,
13 * this list of conditions and the following disclaimer in the documentation
14 * and/or other materials provided with the distribution.
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16 * contributors may be used to endorse or promote products derived
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19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
23 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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29 * POSSIBILITY OF SUCH DAMAGE.
32 * Copyright (c) 1984 - 1991 by Sun Microsystems, Inc.
35 /* #ident "@(#)pmap_svc.c 1.14 93/07/05 SMI" */
39 static char sccsid[] = "@(#)pmap_svc.c 1.23 89/04/05 Copyr 1984 Sun Micro";
45 * The server procedure for the version 2 portmaper.
46 * All the portmapper related interface from the portmap side.
50 #include <sys/types.h>
51 #include <sys/socket.h>
54 #include <rpc/pmap_prot.h>
55 #include <rpc/rpcb_prot.h>
61 static struct pmaplist *find_service_pmap(rpcprog_t, rpcvers_t,
63 static bool_t pmapproc_change(struct svc_req *, SVCXPRT *, u_long);
64 static bool_t pmapproc_getport(struct svc_req *, SVCXPRT *);
65 static bool_t pmapproc_dump(struct svc_req *, SVCXPRT *);
68 * Called for all the version 2 inquiries.
71 pmap_service(struct svc_req *rqstp, SVCXPRT *xprt)
73 rpcbs_procinfo(RPCBVERS_2_STAT, rqstp->rq_proc);
74 switch (rqstp->rq_proc) {
81 fprintf(stderr, "PMAPPROC_NULL\n");
83 check_access(xprt, rqstp->rq_proc, NULL, PMAPVERS);
84 if ((!svc_sendreply(xprt, (xdrproc_t) xdr_void, NULL)) &&
94 * Set a program, version to port mapping
96 pmapproc_change(rqstp, xprt, rqstp->rq_proc);
101 * Remove a program, version to port mapping.
103 pmapproc_change(rqstp, xprt, rqstp->rq_proc);
106 case PMAPPROC_GETPORT:
108 * Lookup the mapping for a program, version and return its
111 pmapproc_getport(rqstp, xprt);
116 * Return the current set of mapped program, version
120 fprintf(stderr, "PMAPPROC_DUMP\n");
122 pmapproc_dump(rqstp, xprt);
125 case PMAPPROC_CALLIT:
127 * Calls a procedure on the local machine. If the requested
128 * procedure is not registered this procedure does not return
129 * error information!!
130 * This procedure is only supported on rpc/udp and calls via
131 * rpc/udp. It passes null authentication parameters.
133 rpcbproc_callit_com(rqstp, xprt, PMAPPROC_CALLIT, PMAPVERS);
143 * returns the item with the given program, version number. If that version
144 * number is not found, it returns the item with that program number, so that
145 * the port number is now returned to the caller. The caller when makes a
146 * call to this program, version number, the call will fail and it will
147 * return with PROGVERS_MISMATCH. The user can then determine the highest
148 * and the lowest version number for this program using clnt_geterr() and
149 * use those program version numbers.
151 static struct pmaplist *
152 find_service_pmap(rpcprog_t prog, rpcvers_t vers, rpcprot_t prot)
154 register struct pmaplist *hit = NULL;
155 register struct pmaplist *pml;
157 for (pml = list_pml; pml != NULL; pml = pml->pml_next) {
158 if ((pml->pml_map.pm_prog != prog) ||
159 (pml->pml_map.pm_prot != prot))
162 if (pml->pml_map.pm_vers == vers)
169 pmapproc_change(struct svc_req *rqstp __unused, SVCXPRT *xprt, unsigned long op)
174 struct sockaddr_in *who;
180 fprintf(stderr, "%s request for (%lu, %lu) : ",
181 op == PMAPPROC_SET ? "PMAP_SET" : "PMAP_UNSET",
182 reg.pm_prog, reg.pm_vers);
185 if (!svc_getargs(xprt, (xdrproc_t) xdr_pmap, (char *)®)) {
190 if (!check_access(xprt, op, ®, PMAPVERS)) {
191 svcerr_weakauth(xprt);
195 who = svc_getcaller(xprt);
198 * Can't use getpwnam here. We might end up calling ourselves
201 if (__rpc_get_local_uid(xprt, &uid) < 0)
202 rpcbreg.r_owner = "unknown";
204 rpcbreg.r_owner = "superuser";
206 /* r_owner will be strdup-ed later */
207 snprintf(uidbuf, sizeof uidbuf, "%d", uid);
208 rpcbreg.r_owner = uidbuf;
211 rpcbreg.r_prog = reg.pm_prog;
212 rpcbreg.r_vers = reg.pm_vers;
214 if (op == PMAPPROC_SET) {
217 snprintf(buf, sizeof buf, "0.0.0.0.%d.%d",
218 (int)((reg.pm_port >> 8) & 0xff),
219 (int)(reg.pm_port & 0xff));
220 rpcbreg.r_addr = buf;
221 if (reg.pm_prot == IPPROTO_UDP) {
222 rpcbreg.r_netid = udptrans;
223 } else if (reg.pm_prot == IPPROTO_TCP) {
224 rpcbreg.r_netid = tcptrans;
229 ans = map_set(&rpcbreg, rpcbreg.r_owner);
230 } else if (op == PMAPPROC_UNSET) {
233 rpcbreg.r_addr = NULL;
234 rpcbreg.r_netid = tcptrans;
235 ans1 = map_unset(&rpcbreg, rpcbreg.r_owner);
236 rpcbreg.r_netid = udptrans;
237 ans2 = map_unset(&rpcbreg, rpcbreg.r_owner);
243 if ((!svc_sendreply(xprt, (xdrproc_t) xdr_long, (caddr_t) &ans)) &&
245 fprintf(stderr, "portmap: svc_sendreply\n");
252 fprintf(stderr, "%s\n", ans == TRUE ? "succeeded" : "failed");
254 if (op == PMAPPROC_SET)
255 rpcbs_set(RPCBVERS_2_STAT, ans);
257 rpcbs_unset(RPCBVERS_2_STAT, ans);
263 pmapproc_getport(struct svc_req *rqstp __unused, SVCXPRT *xprt)
268 struct pmaplist *fnd;
273 if (!svc_getargs(xprt, (xdrproc_t) xdr_pmap, (char *)®)) {
278 if (!check_access(xprt, PMAPPROC_GETPORT, ®, PMAPVERS)) {
279 svcerr_weakauth(xprt);
285 uaddr = taddr2uaddr(rpcbind_get_conf(xprt->xp_netid),
286 svc_getrpccaller(xprt));
287 fprintf(stderr, "PMAP_GETPORT req for (%lu, %lu, %s) from %s :",
288 reg.pm_prog, reg.pm_vers,
289 reg.pm_prot == IPPROTO_UDP ? "udp" : "tcp", uaddr);
293 fnd = find_service_pmap(reg.pm_prog, reg.pm_vers, reg.pm_prot);
295 char serveuaddr[32], *ua;
296 int h1, h2, h3, h4, p1, p2;
299 if (reg.pm_prot == IPPROTO_UDP) {
303 ua = tcp_uaddr; /* To get the len */
309 if (sscanf(ua, "%d.%d.%d.%d.%d.%d", &h1, &h2, &h3,
310 &h4, &p1, &p2) == 6) {
311 p1 = (fnd->pml_map.pm_port >> 8) & 0xff;
312 p2 = (fnd->pml_map.pm_port) & 0xff;
313 snprintf(serveuaddr, sizeof serveuaddr,
314 "%d.%d.%d.%d.%d.%d", h1, h2, h3, h4, p1, p2);
315 if (is_bound(netid, serveuaddr)) {
316 port = fnd->pml_map.pm_port;
317 } else { /* this service is dead; delete it */
318 delete_prog(reg.pm_prog);
324 if ((!svc_sendreply(xprt, (xdrproc_t) xdr_long, (caddr_t)&lport)) &&
326 (void) fprintf(stderr, "portmap: svc_sendreply\n");
333 fprintf(stderr, "port = %d\n", port);
335 rpcbs_getaddr(RPCBVERS_2_STAT, reg.pm_prog, reg.pm_vers,
336 reg.pm_prot == IPPROTO_UDP ? udptrans : tcptrans,
337 port ? udptrans : "");
344 pmapproc_dump(struct svc_req *rqstp __unused, SVCXPRT *xprt)
346 if (!svc_getargs(xprt, (xdrproc_t)xdr_void, NULL)) {
351 if (!check_access(xprt, PMAPPROC_DUMP, NULL, PMAPVERS)) {
352 svcerr_weakauth(xprt);
356 if ((!svc_sendreply(xprt, (xdrproc_t) xdr_pmaplist_ptr,
357 (caddr_t)&list_pml)) && debugging) {
359 (void) fprintf(stderr, "portmap: svc_sendreply\n");