1/* $NetBSD: svc_generic.c,v 1.3 2000/07/06 03:10:35 christos Exp $ */
2
3/*
4 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
5 * unrestricted use provided that this legend is included on all tape
6 * media and as a part of the software program in whole or part. Users
7 * may copy or modify Sun RPC without charge, but are not authorized
8 * to license or distribute it to anyone else except as part of a product or
9 * program developed by the user.
10 *
11 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
12 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
13 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
14 *
15 * Sun RPC is provided with no support and without any obligation on the
16 * part of Sun Microsystems, Inc. to assist in its use, correction,
17 * modification or enhancement.
18 *
19 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
20 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
21 * OR ANY PART THEREOF.
22 *
23 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
24 * or profits or other special, indirect and consequential damages, even if
25 * Sun has been advised of the possibility of such damages.
26 *
27 * Sun Microsystems, Inc.
28 * 2550 Garcia Avenue
29 * Mountain View, California 94043
30 */
31
32/*
33 * Copyright (c) 1986-1991 by Sun Microsystems Inc.
34 */
35
36#if defined(LIBC_SCCS) && !defined(lint)
37#ident "@(#)svc_generic.c 1.19 94/04/24 SMI"
38static char sccsid[] = "@(#)svc_generic.c 1.21 89/02/28 Copyr 1988 Sun Micro";
39#endif
40#include <sys/cdefs.h>
| 1/* $NetBSD: svc_generic.c,v 1.3 2000/07/06 03:10:35 christos Exp $ */
2
3/*
4 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
5 * unrestricted use provided that this legend is included on all tape
6 * media and as a part of the software program in whole or part. Users
7 * may copy or modify Sun RPC without charge, but are not authorized
8 * to license or distribute it to anyone else except as part of a product or
9 * program developed by the user.
10 *
11 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
12 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
13 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
14 *
15 * Sun RPC is provided with no support and without any obligation on the
16 * part of Sun Microsystems, Inc. to assist in its use, correction,
17 * modification or enhancement.
18 *
19 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
20 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
21 * OR ANY PART THEREOF.
22 *
23 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
24 * or profits or other special, indirect and consequential damages, even if
25 * Sun has been advised of the possibility of such damages.
26 *
27 * Sun Microsystems, Inc.
28 * 2550 Garcia Avenue
29 * Mountain View, California 94043
30 */
31
32/*
33 * Copyright (c) 1986-1991 by Sun Microsystems Inc.
34 */
35
36#if defined(LIBC_SCCS) && !defined(lint)
37#ident "@(#)svc_generic.c 1.19 94/04/24 SMI"
38static char sccsid[] = "@(#)svc_generic.c 1.21 89/02/28 Copyr 1988 Sun Micro";
39#endif
40#include <sys/cdefs.h>
|
41__FBSDID("$FreeBSD: head/sys/rpc/svc_generic.c 194407 2009-06-17 22:50:26Z rmacklem $");
| 41__FBSDID("$FreeBSD: head/sys/rpc/svc_generic.c 196503 2009-08-24 10:09:30Z zec $");
|
42
43/*
44 * svc_generic.c, Server side for RPC.
45 *
46 */
47
48#include "opt_inet6.h"
49
50#include <sys/param.h>
51#include <sys/lock.h>
52#include <sys/kernel.h>
53#include <sys/malloc.h>
54#include <sys/mutex.h>
55#include <sys/protosw.h>
56#include <sys/queue.h>
57#include <sys/socket.h>
58#include <sys/socketvar.h>
59#include <sys/systm.h>
60#include <sys/sx.h>
61#include <sys/ucred.h>
62
| 42
43/*
44 * svc_generic.c, Server side for RPC.
45 *
46 */
47
48#include "opt_inet6.h"
49
50#include <sys/param.h>
51#include <sys/lock.h>
52#include <sys/kernel.h>
53#include <sys/malloc.h>
54#include <sys/mutex.h>
55#include <sys/protosw.h>
56#include <sys/queue.h>
57#include <sys/socket.h>
58#include <sys/socketvar.h>
59#include <sys/systm.h>
60#include <sys/sx.h>
61#include <sys/ucred.h>
62
|
| 63#include <net/vnet.h>
64
|
63#include <rpc/rpc.h>
64#include <rpc/rpcb_clnt.h>
65#include <rpc/nettype.h>
66
67#include <rpc/rpc_com.h>
68
69extern int __svc_vc_setflag(SVCXPRT *, int);
70
71/*
72 * The highest level interface for server creation.
73 * It tries for all the nettokens in that particular class of token
74 * and returns the number of handles it can create and/or find.
75 *
76 * It creates a link list of all the handles it could create.
77 * If svc_create() is called multiple times, it uses the handle
78 * created earlier instead of creating a new handle every time.
79 */
80int
81svc_create(
82 SVCPOOL *pool,
83 void (*dispatch)(struct svc_req *, SVCXPRT *),
84 rpcprog_t prognum, /* Program number */
85 rpcvers_t versnum, /* Version number */
86 const char *nettype) /* Networktype token */
87{
88 int num = 0;
89 SVCXPRT *xprt;
90 struct netconfig *nconf;
91 void *handle;
92
93 if ((handle = __rpc_setconf(nettype)) == NULL) {
94 printf("svc_create: unknown protocol");
95 return (0);
96 }
97 while ((nconf = __rpc_getconf(handle)) != NULL) {
98 mtx_lock(&pool->sp_lock);
99 TAILQ_FOREACH(xprt, &pool->sp_xlist, xp_link) {
100 if (strcmp(xprt->xp_netid, nconf->nc_netid) == 0) {
101 /* Found an old one, use it */
102 mtx_unlock(&pool->sp_lock);
103 (void) rpcb_unset(prognum, versnum, nconf);
104 if (svc_reg(xprt, prognum, versnum,
105 dispatch, nconf) == FALSE) {
106 printf(
107 "svc_create: could not register prog %u vers %u on %s\n",
108 (unsigned)prognum, (unsigned)versnum,
109 nconf->nc_netid);
110 mtx_lock(&pool->sp_lock);
111 } else {
112 num++;
113 mtx_lock(&pool->sp_lock);
114 break;
115 }
116 }
117 }
118 mtx_unlock(&pool->sp_lock);
119 if (xprt == NULL) {
120 /* It was not found. Now create a new one */
121 xprt = svc_tp_create(pool, dispatch, prognum, versnum,
122 NULL, nconf);
123 if (xprt) {
124 num++;
125 SVC_RELEASE(xprt);
126 }
127 }
128 }
129 __rpc_endconf(handle);
130 /*
131 * In case of num == 0; the error messages are generated by the
132 * underlying layers; and hence not needed here.
133 */
134 return (num);
135}
136
137/*
138 * The high level interface to svc_tli_create().
139 * It tries to create a server for "nconf" and registers the service
140 * with the rpcbind. It calls svc_tli_create();
141 */
142SVCXPRT *
143svc_tp_create(
144 SVCPOOL *pool,
145 void (*dispatch)(struct svc_req *, SVCXPRT *),
146 rpcprog_t prognum, /* Program number */
147 rpcvers_t versnum, /* Version number */
148 const char *uaddr, /* Address (or null for default) */
149 const struct netconfig *nconf) /* Netconfig structure for the network */
150{
151 struct netconfig nconfcopy;
152 struct netbuf *taddr;
153 struct t_bind bind;
154 SVCXPRT *xprt;
155
156 if (nconf == NULL) {
157 printf(
158 "svc_tp_create: invalid netconfig structure for prog %u vers %u\n",
159 (unsigned)prognum, (unsigned)versnum);
160 return (NULL);
161 }
162 if (uaddr) {
163 taddr = uaddr2taddr(nconf, uaddr);
164 bind.addr = *taddr;
165 free(taddr, M_RPC);
166 bind.qlen = SOMAXCONN;
167 xprt = svc_tli_create(pool, NULL, nconf, &bind, 0, 0);
168 free(bind.addr.buf, M_RPC);
169 } else {
170 xprt = svc_tli_create(pool, NULL, nconf, NULL, 0, 0);
171 }
172 if (xprt == NULL) {
173 return (NULL);
174 }
175 /*LINTED const castaway*/
176 nconfcopy = *nconf;
177 (void) rpcb_unset(prognum, versnum, &nconfcopy);
178 if (svc_reg(xprt, prognum, versnum, dispatch, nconf) == FALSE) {
179 printf(
180 "svc_tp_create: Could not register prog %u vers %u on %s\n",
181 (unsigned)prognum, (unsigned)versnum,
182 nconf->nc_netid);
183 xprt_unregister(xprt);
184 SVC_RELEASE(xprt);
185 return (NULL);
186 }
187 return (xprt);
188}
189
190/*
191 * If so is NULL, then it opens a socket for the given transport
192 * provider (nconf cannot be NULL then). If the t_state is T_UNBND and
193 * bindaddr is NON-NULL, it performs a t_bind using the bindaddr. For
194 * NULL bindadr and Connection oriented transports, the value of qlen
195 * is set to 8.
196 *
197 * If sendsz or recvsz are zero, their default values are chosen.
198 */
199SVCXPRT *
200svc_tli_create(
201 SVCPOOL *pool,
202 struct socket *so, /* Connection end point */
203 const struct netconfig *nconf, /* Netconfig struct for nettoken */
204 const struct t_bind *bindaddr, /* Local bind address */
205 size_t sendsz, /* Max sendsize */
206 size_t recvsz) /* Max recvsize */
207{
208 SVCXPRT *xprt = NULL; /* service handle */
209 bool_t madeso = FALSE; /* whether so opened here */
210 struct __rpc_sockinfo si;
211 struct sockaddr_storage ss;
212
213 if (!so) {
214 if (nconf == NULL) {
215 printf("svc_tli_create: invalid netconfig\n");
216 return (NULL);
217 }
218 so = __rpc_nconf2socket(nconf);
219 if (!so) {
220 printf(
221 "svc_tli_create: could not open connection for %s\n",
222 nconf->nc_netid);
223 return (NULL);
224 }
225 __rpc_nconf2sockinfo(nconf, &si);
226 madeso = TRUE;
227 } else {
228 /*
229 * It is an open socket. Get the transport info.
230 */
| 65#include <rpc/rpc.h>
66#include <rpc/rpcb_clnt.h>
67#include <rpc/nettype.h>
68
69#include <rpc/rpc_com.h>
70
71extern int __svc_vc_setflag(SVCXPRT *, int);
72
73/*
74 * The highest level interface for server creation.
75 * It tries for all the nettokens in that particular class of token
76 * and returns the number of handles it can create and/or find.
77 *
78 * It creates a link list of all the handles it could create.
79 * If svc_create() is called multiple times, it uses the handle
80 * created earlier instead of creating a new handle every time.
81 */
82int
83svc_create(
84 SVCPOOL *pool,
85 void (*dispatch)(struct svc_req *, SVCXPRT *),
86 rpcprog_t prognum, /* Program number */
87 rpcvers_t versnum, /* Version number */
88 const char *nettype) /* Networktype token */
89{
90 int num = 0;
91 SVCXPRT *xprt;
92 struct netconfig *nconf;
93 void *handle;
94
95 if ((handle = __rpc_setconf(nettype)) == NULL) {
96 printf("svc_create: unknown protocol");
97 return (0);
98 }
99 while ((nconf = __rpc_getconf(handle)) != NULL) {
100 mtx_lock(&pool->sp_lock);
101 TAILQ_FOREACH(xprt, &pool->sp_xlist, xp_link) {
102 if (strcmp(xprt->xp_netid, nconf->nc_netid) == 0) {
103 /* Found an old one, use it */
104 mtx_unlock(&pool->sp_lock);
105 (void) rpcb_unset(prognum, versnum, nconf);
106 if (svc_reg(xprt, prognum, versnum,
107 dispatch, nconf) == FALSE) {
108 printf(
109 "svc_create: could not register prog %u vers %u on %s\n",
110 (unsigned)prognum, (unsigned)versnum,
111 nconf->nc_netid);
112 mtx_lock(&pool->sp_lock);
113 } else {
114 num++;
115 mtx_lock(&pool->sp_lock);
116 break;
117 }
118 }
119 }
120 mtx_unlock(&pool->sp_lock);
121 if (xprt == NULL) {
122 /* It was not found. Now create a new one */
123 xprt = svc_tp_create(pool, dispatch, prognum, versnum,
124 NULL, nconf);
125 if (xprt) {
126 num++;
127 SVC_RELEASE(xprt);
128 }
129 }
130 }
131 __rpc_endconf(handle);
132 /*
133 * In case of num == 0; the error messages are generated by the
134 * underlying layers; and hence not needed here.
135 */
136 return (num);
137}
138
139/*
140 * The high level interface to svc_tli_create().
141 * It tries to create a server for "nconf" and registers the service
142 * with the rpcbind. It calls svc_tli_create();
143 */
144SVCXPRT *
145svc_tp_create(
146 SVCPOOL *pool,
147 void (*dispatch)(struct svc_req *, SVCXPRT *),
148 rpcprog_t prognum, /* Program number */
149 rpcvers_t versnum, /* Version number */
150 const char *uaddr, /* Address (or null for default) */
151 const struct netconfig *nconf) /* Netconfig structure for the network */
152{
153 struct netconfig nconfcopy;
154 struct netbuf *taddr;
155 struct t_bind bind;
156 SVCXPRT *xprt;
157
158 if (nconf == NULL) {
159 printf(
160 "svc_tp_create: invalid netconfig structure for prog %u vers %u\n",
161 (unsigned)prognum, (unsigned)versnum);
162 return (NULL);
163 }
164 if (uaddr) {
165 taddr = uaddr2taddr(nconf, uaddr);
166 bind.addr = *taddr;
167 free(taddr, M_RPC);
168 bind.qlen = SOMAXCONN;
169 xprt = svc_tli_create(pool, NULL, nconf, &bind, 0, 0);
170 free(bind.addr.buf, M_RPC);
171 } else {
172 xprt = svc_tli_create(pool, NULL, nconf, NULL, 0, 0);
173 }
174 if (xprt == NULL) {
175 return (NULL);
176 }
177 /*LINTED const castaway*/
178 nconfcopy = *nconf;
179 (void) rpcb_unset(prognum, versnum, &nconfcopy);
180 if (svc_reg(xprt, prognum, versnum, dispatch, nconf) == FALSE) {
181 printf(
182 "svc_tp_create: Could not register prog %u vers %u on %s\n",
183 (unsigned)prognum, (unsigned)versnum,
184 nconf->nc_netid);
185 xprt_unregister(xprt);
186 SVC_RELEASE(xprt);
187 return (NULL);
188 }
189 return (xprt);
190}
191
192/*
193 * If so is NULL, then it opens a socket for the given transport
194 * provider (nconf cannot be NULL then). If the t_state is T_UNBND and
195 * bindaddr is NON-NULL, it performs a t_bind using the bindaddr. For
196 * NULL bindadr and Connection oriented transports, the value of qlen
197 * is set to 8.
198 *
199 * If sendsz or recvsz are zero, their default values are chosen.
200 */
201SVCXPRT *
202svc_tli_create(
203 SVCPOOL *pool,
204 struct socket *so, /* Connection end point */
205 const struct netconfig *nconf, /* Netconfig struct for nettoken */
206 const struct t_bind *bindaddr, /* Local bind address */
207 size_t sendsz, /* Max sendsize */
208 size_t recvsz) /* Max recvsize */
209{
210 SVCXPRT *xprt = NULL; /* service handle */
211 bool_t madeso = FALSE; /* whether so opened here */
212 struct __rpc_sockinfo si;
213 struct sockaddr_storage ss;
214
215 if (!so) {
216 if (nconf == NULL) {
217 printf("svc_tli_create: invalid netconfig\n");
218 return (NULL);
219 }
220 so = __rpc_nconf2socket(nconf);
221 if (!so) {
222 printf(
223 "svc_tli_create: could not open connection for %s\n",
224 nconf->nc_netid);
225 return (NULL);
226 }
227 __rpc_nconf2sockinfo(nconf, &si);
228 madeso = TRUE;
229 } else {
230 /*
231 * It is an open socket. Get the transport info.
232 */
|
| 233 CURVNET_SET(so->so_vnet);
|
231 if (!__rpc_socket2sockinfo(so, &si)) {
232 printf(
233 "svc_tli_create: could not get transport information\n");
| 234 if (!__rpc_socket2sockinfo(so, &si)) {
235 printf(
236 "svc_tli_create: could not get transport information\n");
|
| 237 CURVNET_RESTORE();
|
234 return (NULL);
235 }
| 238 return (NULL);
239 }
|
| 240 CURVNET_RESTORE();
|
236 }
237
238 /*
239 * If the socket is unbound, try to bind it.
240 */
241 if (madeso || !__rpc_sockisbound(so)) {
242 if (bindaddr == NULL) {
243 if (bindresvport(so, NULL)) {
244 memset(&ss, 0, sizeof ss);
245 ss.ss_family = si.si_af;
246 ss.ss_len = si.si_alen;
247 if (sobind(so, (struct sockaddr *)&ss,
248 curthread)) {
249 printf(
250 "svc_tli_create: could not bind to anonymous port\n");
251 goto freedata;
252 }
253 }
254 solisten(so, SOMAXCONN, curthread);
255 } else {
256 if (bindresvport(so,
257 (struct sockaddr *)bindaddr->addr.buf)) {
258 printf(
259 "svc_tli_create: could not bind to requested address\n");
260 goto freedata;
261 }
| 241 }
242
243 /*
244 * If the socket is unbound, try to bind it.
245 */
246 if (madeso || !__rpc_sockisbound(so)) {
247 if (bindaddr == NULL) {
248 if (bindresvport(so, NULL)) {
249 memset(&ss, 0, sizeof ss);
250 ss.ss_family = si.si_af;
251 ss.ss_len = si.si_alen;
252 if (sobind(so, (struct sockaddr *)&ss,
253 curthread)) {
254 printf(
255 "svc_tli_create: could not bind to anonymous port\n");
256 goto freedata;
257 }
258 }
259 solisten(so, SOMAXCONN, curthread);
260 } else {
261 if (bindresvport(so,
262 (struct sockaddr *)bindaddr->addr.buf)) {
263 printf(
264 "svc_tli_create: could not bind to requested address\n");
265 goto freedata;
266 }
|
| 267 CURVNET_SET(so->so_vnet);
|
262 solisten(so, (int)bindaddr->qlen, curthread);
| 268 solisten(so, (int)bindaddr->qlen, curthread);
|
| 269 CURVNET_RESTORE();
|
263 }
264
265 }
266 /*
267 * call transport specific function.
268 */
269 switch (si.si_socktype) {
270 case SOCK_STREAM:
271#if 0
272 slen = sizeof ss;
273 if (_getpeername(fd, (struct sockaddr *)(void *)&ss, &slen)
274 == 0) {
275 /* accepted socket */
276 xprt = svc_fd_create(fd, sendsz, recvsz);
277 } else
278#endif
279 xprt = svc_vc_create(pool, so, sendsz, recvsz);
280 if (!nconf || !xprt)
281 break;
282#if 0
283 /* XXX fvdl */
284 if (strcmp(nconf->nc_protofmly, "inet") == 0 ||
285 strcmp(nconf->nc_protofmly, "inet6") == 0)
286 (void) __svc_vc_setflag(xprt, TRUE);
287#endif
288 break;
289 case SOCK_DGRAM:
290 xprt = svc_dg_create(pool, so, sendsz, recvsz);
291 break;
292 default:
293 printf("svc_tli_create: bad service type");
294 goto freedata;
295 }
296
297 if (xprt == NULL)
298 /*
299 * The error messages here are spitted out by the lower layers:
300 * svc_vc_create(), svc_fd_create() and svc_dg_create().
301 */
302 goto freedata;
303
304 /* Fill in type of service */
305 xprt->xp_type = __rpc_socktype2seman(si.si_socktype);
306
307 if (nconf) {
308 xprt->xp_netid = strdup(nconf->nc_netid, M_RPC);
309 }
310 return (xprt);
311
312freedata:
313 if (madeso)
314 (void)soclose(so);
315 if (xprt) {
316 if (!madeso) /* so that svc_destroy doesnt close fd */
317 xprt->xp_socket = NULL;
318 xprt_unregister(xprt);
319 }
320 return (NULL);
321}
| 270 }
271
272 }
273 /*
274 * call transport specific function.
275 */
276 switch (si.si_socktype) {
277 case SOCK_STREAM:
278#if 0
279 slen = sizeof ss;
280 if (_getpeername(fd, (struct sockaddr *)(void *)&ss, &slen)
281 == 0) {
282 /* accepted socket */
283 xprt = svc_fd_create(fd, sendsz, recvsz);
284 } else
285#endif
286 xprt = svc_vc_create(pool, so, sendsz, recvsz);
287 if (!nconf || !xprt)
288 break;
289#if 0
290 /* XXX fvdl */
291 if (strcmp(nconf->nc_protofmly, "inet") == 0 ||
292 strcmp(nconf->nc_protofmly, "inet6") == 0)
293 (void) __svc_vc_setflag(xprt, TRUE);
294#endif
295 break;
296 case SOCK_DGRAM:
297 xprt = svc_dg_create(pool, so, sendsz, recvsz);
298 break;
299 default:
300 printf("svc_tli_create: bad service type");
301 goto freedata;
302 }
303
304 if (xprt == NULL)
305 /*
306 * The error messages here are spitted out by the lower layers:
307 * svc_vc_create(), svc_fd_create() and svc_dg_create().
308 */
309 goto freedata;
310
311 /* Fill in type of service */
312 xprt->xp_type = __rpc_socktype2seman(si.si_socktype);
313
314 if (nconf) {
315 xprt->xp_netid = strdup(nconf->nc_netid, M_RPC);
316 }
317 return (xprt);
318
319freedata:
320 if (madeso)
321 (void)soclose(so);
322 if (xprt) {
323 if (!madeso) /* so that svc_destroy doesnt close fd */
324 xprt->xp_socket = NULL;
325 xprt_unregister(xprt);
326 }
327 return (NULL);
328}
|