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29 * @(#)rpcb_svc_4.c 1.8 93/07/05 SMI
30 * $NetBSD: rpcb_svc_4.c,v 1.1 2000/06/02 23:15:41 fvdl Exp $
31 * $FreeBSD: src/usr.sbin/rpcbind/rpcb_svc_4.c,v 1.5 2007/11/07 10:53:39 kevlo Exp $
34 * Copyright (c) 1986 - 1991 by Sun Microsystems, Inc.
39 * The server procedure for the version 4 rpcbind.
43 #include <sys/types.h>
48 #include <netconfig.h>
54 static void *rpcbproc_getaddr_4_local(void *, struct svc_req *, SVCXPRT *,
56 static void *rpcbproc_getversaddr_4_local(void *, struct svc_req *,
57 SVCXPRT *, rpcvers_t);
58 static void *rpcbproc_getaddrlist_4_local(void *, struct svc_req *,
59 SVCXPRT *, rpcvers_t);
60 static void free_rpcb_entry_list(rpcb_entry_list_ptr *);
61 static void *rpcbproc_dump_4_local(void *, struct svc_req *, SVCXPRT *,
65 * Called by svc_getreqset. There is a separate server handle for
66 * every transport that it waits on.
69 rpcb_service_4(struct svc_req *rqstp, SVCXPRT *transp)
72 rpcb rpcbproc_set_4_arg;
73 rpcb rpcbproc_unset_4_arg;
74 rpcb rpcbproc_getaddr_4_local_arg;
75 char *rpcbproc_uaddr2taddr_4_arg;
76 struct netbuf rpcbproc_taddr2uaddr_4_arg;
79 xdrproc_t xdr_argument, xdr_result;
80 void *(*local)(void *, struct svc_req *, SVCXPRT *, rpcvers_t);
82 rpcbs_procinfo(RPCBVERS_4_STAT, rqstp->rq_proc);
84 switch (rqstp->rq_proc) {
91 fprintf(stderr, "RPCBPROC_NULL\n");
93 check_access(transp, rqstp->rq_proc, NULL, RPCBVERS4);
94 svc_sendreply(transp, (xdrproc_t) xdr_void, NULL);
99 * Check to see whether the message came from
100 * loopback transports (for security reasons)
102 xdr_argument = (xdrproc_t)xdr_rpcb;
103 xdr_result = (xdrproc_t)xdr_bool;
104 local = rpcbproc_set_com;
109 * Check to see whether the message came from
110 * loopback transports (for security reasons)
112 xdr_argument = (xdrproc_t)xdr_rpcb;
113 xdr_result = (xdrproc_t)xdr_bool;
114 local = rpcbproc_unset_com;
117 case RPCBPROC_GETADDR:
118 xdr_argument = (xdrproc_t)xdr_rpcb;
119 xdr_result = (xdrproc_t)xdr_wrapstring;
120 local = rpcbproc_getaddr_4_local;
123 case RPCBPROC_GETVERSADDR:
126 fprintf(stderr, "RPCBPROC_GETVERSADDR\n");
128 xdr_argument = (xdrproc_t)xdr_rpcb;
129 xdr_result = (xdrproc_t)xdr_wrapstring;
130 local = rpcbproc_getversaddr_4_local;
136 fprintf(stderr, "RPCBPROC_DUMP\n");
138 xdr_argument = (xdrproc_t)xdr_void;
139 xdr_result = (xdrproc_t)xdr_rpcblist_ptr;
140 local = rpcbproc_dump_4_local;
143 case RPCBPROC_INDIRECT:
146 fprintf(stderr, "RPCBPROC_INDIRECT\n");
148 rpcbproc_callit_com(rqstp, transp, rqstp->rq_proc, RPCBVERS4);
151 /* case RPCBPROC_CALLIT: */
155 fprintf(stderr, "RPCBPROC_BCAST\n");
157 rpcbproc_callit_com(rqstp, transp, rqstp->rq_proc, RPCBVERS4);
160 case RPCBPROC_GETTIME:
163 fprintf(stderr, "RPCBPROC_GETTIME\n");
165 xdr_argument = (xdrproc_t)xdr_void;
166 xdr_result = (xdrproc_t)xdr_u_long;
167 local = rpcbproc_gettime_com;
170 case RPCBPROC_UADDR2TADDR:
173 fprintf(stderr, "RPCBPROC_UADDR2TADDR\n");
175 xdr_argument = (xdrproc_t)xdr_wrapstring;
176 xdr_result = (xdrproc_t)xdr_netbuf;
177 local = rpcbproc_uaddr2taddr_com;
180 case RPCBPROC_TADDR2UADDR:
183 fprintf(stderr, "RPCBPROC_TADDR2UADDR\n");
185 xdr_argument = (xdrproc_t)xdr_netbuf;
186 xdr_result = (xdrproc_t)xdr_wrapstring;
187 local = rpcbproc_taddr2uaddr_com;
190 case RPCBPROC_GETADDRLIST:
193 fprintf(stderr, "RPCBPROC_GETADDRLIST\n");
195 xdr_argument = (xdrproc_t)xdr_rpcb;
196 xdr_result = (xdrproc_t)xdr_rpcb_entry_list_ptr;
197 local = rpcbproc_getaddrlist_4_local;
200 case RPCBPROC_GETSTAT:
203 fprintf(stderr, "RPCBPROC_GETSTAT\n");
205 xdr_argument = (xdrproc_t)xdr_void;
206 xdr_result = (xdrproc_t)xdr_rpcb_stat_byvers;
207 local = rpcbproc_getstat;
211 svcerr_noproc(transp);
214 memset((char *)&argument, 0, sizeof (argument));
215 if (!svc_getargs(transp, (xdrproc_t) xdr_argument,
216 (char *)&argument)) {
217 svcerr_decode(transp);
219 fprintf(stderr, "rpcbind: could not decode\n");
222 if (!check_access(transp, rqstp->rq_proc, &argument, RPCBVERS4)) {
223 svcerr_weakauth(transp);
226 result = (*local)(&argument, rqstp, transp, RPCBVERS4);
227 if (result != NULL && !svc_sendreply(transp, (xdrproc_t) xdr_result,
229 svcerr_systemerr(transp);
231 fprintf(stderr, "rpcbind: svc_sendreply\n");
238 if (!svc_freeargs(transp, (xdrproc_t) xdr_argument,
239 (char *)&argument)) {
241 fprintf(stderr, "unable to free arguments\n");
251 * Lookup the mapping for a program, version and return its
252 * address. Assuming that the caller wants the address of the
253 * server running on the transport on which the request came.
254 * Even if a service with a different version number is available,
255 * it will return that address. The client should check with an
256 * clnt_call to verify whether the service is the one that is desired.
257 * We also try to resolve the universal address in terms of
258 * address of the caller.
262 rpcbproc_getaddr_4_local(void *arg, struct svc_req *rqstp, SVCXPRT *transp,
263 rpcvers_t rpcbversnum __unused)
265 RPCB *regp = (RPCB *)arg;
270 uaddr = taddr2uaddr(rpcbind_get_conf(transp->xp_netid),
271 svc_getrpccaller(transp));
272 fprintf(stderr, "RPCB_GETADDR req for (%lu, %lu, %s) from %s: ",
273 (unsigned long)regp->r_prog, (unsigned long)regp->r_vers,
274 regp->r_netid, uaddr);
278 return (rpcbproc_getaddr_com(regp, rqstp, transp, RPCBVERS4,
283 * Lookup the mapping for a program, version and return its
284 * address. Assuming that the caller wants the address of the
285 * server running on the transport on which the request came.
287 * We also try to resolve the universal address in terms of
288 * address of the caller.
292 rpcbproc_getversaddr_4_local(void *arg, struct svc_req *rqstp, SVCXPRT *transp,
293 rpcvers_t versnum __unused)
295 RPCB *regp = (RPCB *)arg;
300 uaddr = taddr2uaddr(rpcbind_get_conf(transp->xp_netid),
301 svc_getrpccaller(transp));
302 fprintf(stderr, "RPCB_GETVERSADDR rqst for (%lu, %lu, %s)"
304 (unsigned long)regp->r_prog, (unsigned long)regp->r_vers,
305 regp->r_netid, uaddr);
309 return (rpcbproc_getaddr_com(regp, rqstp, transp, RPCBVERS4,
314 * Lookup the mapping for a program, version and return the
315 * addresses for all transports in the current transport family.
316 * We return a merged address.
320 rpcbproc_getaddrlist_4_local(void *arg, struct svc_req *rqstp __unused,
321 SVCXPRT *transp, rpcvers_t versnum __unused)
323 RPCB *regp = (RPCB *)arg;
324 static rpcb_entry_list_ptr rlist;
326 rpcb_entry_list_ptr rp, tail;
330 struct netconfig *nconf;
331 struct netconfig *reg_nconf;
332 char *saddr, *maddr = NULL;
334 free_rpcb_entry_list(&rlist);
338 reg_nconf = rpcbind_get_conf(transp->xp_netid);
339 if (reg_nconf == NULL)
341 if (*(regp->r_addr) != '\0') {
342 saddr = regp->r_addr;
348 fprintf(stderr, "r_addr: %s r_netid: %s nc_protofmly: %s\n",
349 regp->r_addr, regp->r_netid, reg_nconf->nc_protofmly);
352 for (rbl = list_rbl; rbl != NULL; rbl = rbl->rpcb_next) {
353 if ((rbl->rpcb_map.r_prog == prog) &&
354 (rbl->rpcb_map.r_vers == vers)) {
355 nconf = rpcbind_get_conf(rbl->rpcb_map.r_netid);
358 if (strcmp(nconf->nc_protofmly, reg_nconf->nc_protofmly)
360 continue; /* not same proto family */
364 fprintf(stderr, "\tmerge with: %s\n",
365 rbl->rpcb_map.r_addr);
367 if ((maddr = mergeaddr(transp, rbl->rpcb_map.r_netid,
368 rbl->rpcb_map.r_addr, saddr)) == NULL) {
371 fprintf(stderr, " FAILED\n");
374 } else if (!maddr[0]) {
377 fprintf(stderr, " SUCCEEDED, but port died - maddr: nullstring\n");
379 /* The server died. Unset this combination */
380 delete_prog(regp->r_prog);
385 fprintf(stderr, " SUCCEEDED maddr: %s\n", maddr);
390 rp = malloc(sizeof (rpcb_entry_list));
393 a = &rp->rpcb_entry_map;
395 a->r_nc_netid = nconf->nc_netid;
396 a->r_nc_semantics = nconf->nc_semantics;
397 a->r_nc_protofmly = nconf->nc_protofmly;
398 a->r_nc_proto = nconf->nc_proto;
399 rp->rpcb_entry_next = NULL;
404 tail->rpcb_entry_next = rp;
412 for (rp = rlist; rp; rp = rp->rpcb_entry_next) {
413 fprintf(stderr, "\t%s %s\n", rp->rpcb_entry_map.r_maddr,
414 rp->rpcb_entry_map.r_nc_proto);
419 * XXX: getaddrlist info is also being stuffed into getaddr.
420 * Perhaps wrong, but better than it not getting counted at all.
422 rpcbs_getaddr(RPCBVERS4 - 2, prog, vers, transp->xp_netid, maddr);
423 return (void *)&rlist;
425 fail: free_rpcb_entry_list(&rlist);
430 * Free only the allocated structure, rest is all a pointer to some
431 * other data somewhere else.
434 free_rpcb_entry_list(rpcb_entry_list_ptr *rlistp)
436 rpcb_entry_list_ptr rbl, tmp;
438 for (rbl = *rlistp; rbl != NULL; ) {
440 rbl = rbl->rpcb_entry_next;
441 free((char *)tmp->rpcb_entry_map.r_maddr);
449 rpcbproc_dump_4_local(void *arg __unused, struct svc_req *req __unused,
450 SVCXPRT *xprt __unused, rpcvers_t versnum __unused)
452 return ((void *)&list_rbl);