kernel - Fix some rare pmap races in i386 and x86_64.
[dragonfly.git] / usr.sbin / rpcbind / rpcb_svc.c
blobf419cedfbeb37e329f8b5e611506a009e0aebd48
1 /*
2 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
3 * unrestricted use provided that this legend is included on all tape
4 * media and as a part of the software program in whole or part. Users
5 * may copy or modify Sun RPC without charge, but are not authorized
6 * to license or distribute it to anyone else except as part of a product or
7 * program developed by the user.
9 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
10 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
11 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
13 * Sun RPC is provided with no support and without any obligation on the
14 * part of Sun Microsystems, Inc. to assist in its use, correction,
15 * modification or enhancement.
17 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
18 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
19 * OR ANY PART THEREOF.
21 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
22 * or profits or other special, indirect and consequential damages, even if
23 * Sun has been advised of the possibility of such damages.
25 * Sun Microsystems, Inc.
26 * 2550 Garcia Avenue
27 * Mountain View, California 94043
29 * @(#)rpcb_svc.c 1.16 93/07/05 SMI"
30 * $NetBSD: rpcb_svc.c,v 1.1 2000/06/02 23:15:41 fvdl Exp $
31 * $FreeBSD: src/usr.sbin/rpcbind/rpcb_svc.c,v 1.3 2007/11/07 10:53:39 kevlo Exp $
34 * Copyright (c) 1986 - 1991 by Sun Microsystems, Inc.
38 * rpcb_svc.c
39 * The server procedure for the version 3 rpcbind (TLI).
41 * It maintains a separate list of all the registered services with the
42 * version 3 of rpcbind.
44 #include <sys/types.h>
45 #include <rpc/rpc.h>
46 #include <rpc/rpcb_prot.h>
47 #include <netconfig.h>
48 #include <syslog.h>
49 #include <stdlib.h>
50 #include <stdio.h>
51 #include <string.h>
53 #include "rpcbind.h"
55 static void *rpcbproc_getaddr_3_local(void *, struct svc_req *, SVCXPRT *,
56 rpcvers_t);
57 static void *rpcbproc_dump_3_local(void *, struct svc_req *, SVCXPRT *,
58 rpcvers_t);
61 * Called by svc_getreqset. There is a separate server handle for
62 * every transport that it waits on.
64 void
65 rpcb_service_3(struct svc_req *rqstp, SVCXPRT *transp)
67 union {
68 RPCB rpcbproc_set_3_arg;
69 RPCB rpcbproc_unset_3_arg;
70 RPCB rpcbproc_getaddr_3_local_arg;
71 struct rpcb_rmtcallargs rpcbproc_callit_3_arg;
72 char *rpcbproc_uaddr2taddr_3_arg;
73 struct netbuf rpcbproc_taddr2uaddr_3_arg;
74 } argument;
75 char *result;
76 xdrproc_t xdr_argument, xdr_result;
77 void *(*local)(void *, struct svc_req *, SVCXPRT *, rpcvers_t);
79 rpcbs_procinfo(RPCBVERS_3_STAT, rqstp->rq_proc);
81 switch (rqstp->rq_proc) {
82 case NULLPROC:
84 * Null proc call
86 #ifdef RPCBIND_DEBUG
87 if (debugging)
88 fprintf(stderr, "RPCBPROC_NULL\n");
89 #endif
90 /* This call just logs, no actual checks */
91 check_access(transp, rqstp->rq_proc, NULL, RPCBVERS);
92 svc_sendreply(transp, (xdrproc_t)xdr_void, NULL);
93 return;
95 case RPCBPROC_SET:
96 xdr_argument = (xdrproc_t )xdr_rpcb;
97 xdr_result = (xdrproc_t )xdr_bool;
98 local = rpcbproc_set_com;
99 break;
101 case RPCBPROC_UNSET:
102 xdr_argument = (xdrproc_t)xdr_rpcb;
103 xdr_result = (xdrproc_t)xdr_bool;
104 local = rpcbproc_unset_com;
105 break;
107 case RPCBPROC_GETADDR:
108 xdr_argument = (xdrproc_t)xdr_rpcb;
109 xdr_result = (xdrproc_t)xdr_wrapstring;
110 local = rpcbproc_getaddr_3_local;
111 break;
113 case RPCBPROC_DUMP:
114 #ifdef RPCBIND_DEBUG
115 if (debugging)
116 fprintf(stderr, "RPCBPROC_DUMP\n");
117 #endif
118 xdr_argument = (xdrproc_t)xdr_void;
119 xdr_result = (xdrproc_t)xdr_rpcblist_ptr;
120 local = rpcbproc_dump_3_local;
121 break;
123 case RPCBPROC_CALLIT:
124 rpcbproc_callit_com(rqstp, transp, rqstp->rq_proc, RPCBVERS);
125 return;
127 case RPCBPROC_GETTIME:
128 #ifdef RPCBIND_DEBUG
129 if (debugging)
130 fprintf(stderr, "RPCBPROC_GETTIME\n");
131 #endif
132 xdr_argument = (xdrproc_t)xdr_void;
133 xdr_result = (xdrproc_t)xdr_u_long;
134 local = rpcbproc_gettime_com;
135 break;
137 case RPCBPROC_UADDR2TADDR:
138 #ifdef RPCBIND_DEBUG
139 if (debugging)
140 fprintf(stderr, "RPCBPROC_UADDR2TADDR\n");
141 #endif
142 xdr_argument = (xdrproc_t)xdr_wrapstring;
143 xdr_result = (xdrproc_t)xdr_netbuf;
144 local = rpcbproc_uaddr2taddr_com;
145 break;
147 case RPCBPROC_TADDR2UADDR:
148 #ifdef RPCBIND_DEBUG
149 if (debugging)
150 fprintf(stderr, "RPCBPROC_TADDR2UADDR\n");
151 #endif
152 xdr_argument = (xdrproc_t)xdr_netbuf;
153 xdr_result = (xdrproc_t)xdr_wrapstring;
154 local = rpcbproc_taddr2uaddr_com;
155 break;
157 default:
158 svcerr_noproc(transp);
159 return;
161 memset((char *)&argument, 0, sizeof (argument));
162 if (!svc_getargs(transp, (xdrproc_t) xdr_argument,
163 (char *) &argument)) {
164 svcerr_decode(transp);
165 if (debugging)
166 fprintf(stderr, "rpcbind: could not decode\n");
167 return;
169 if (!check_access(transp, rqstp->rq_proc, &argument, RPCBVERS)) {
170 svcerr_weakauth(transp);
171 goto done;
173 result = (*local)(&argument, rqstp, transp, RPCBVERS);
174 if (result != NULL && !svc_sendreply(transp, (xdrproc_t)xdr_result,
175 result)) {
176 svcerr_systemerr(transp);
177 if (debugging) {
178 fprintf(stderr, "rpcbind: svc_sendreply\n");
179 if (doabort) {
180 rpcbind_abort();
184 done:
185 if (!svc_freeargs(transp, (xdrproc_t)xdr_argument, (char *)
186 &argument)) {
187 if (debugging) {
188 fprintf(stderr, "unable to free arguments\n");
189 if (doabort) {
190 rpcbind_abort();
197 * Lookup the mapping for a program, version and return its
198 * address. Assuming that the caller wants the address of the
199 * server running on the transport on which the request came.
201 * We also try to resolve the universal address in terms of
202 * address of the caller.
204 /* ARGSUSED */
205 static void *
206 rpcbproc_getaddr_3_local(void *arg, struct svc_req *rqstp __unused,
207 SVCXPRT *transp __unused, rpcvers_t versnum __unused)
209 RPCB *regp = (RPCB *)arg;
210 #ifdef RPCBIND_DEBUG
211 if (debugging) {
212 char *uaddr;
214 uaddr = taddr2uaddr(rpcbind_get_conf(transp->xp_netid),
215 svc_getrpccaller(transp));
216 fprintf(stderr, "RPCB_GETADDR req for (%lu, %lu, %s) from %s: ",
217 (unsigned long)regp->r_prog, (unsigned long)regp->r_vers,
218 regp->r_netid, uaddr);
219 free(uaddr);
221 #endif
222 return (rpcbproc_getaddr_com(regp, rqstp, transp, RPCBVERS,
223 RPCB_ALLVERS));
226 /* ARGSUSED */
227 static void *
228 rpcbproc_dump_3_local(void *arg __unused, struct svc_req *rqstp __unused,
229 SVCXPRT *transp __unused, rpcvers_t versnum __unused)
231 return ((void *)&list_rbl);