ReactOS 0.4.15-dev-5667-ged97270
svc_generic.c
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1
2/*
3 * Copyright (c) 2009, Sun Microsystems, Inc.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
8 * - Redistributions of source code must retain the above copyright notice,
9 * this list of conditions and the following disclaimer.
10 * - Redistributions in binary form must reproduce the above copyright notice,
11 * this list of conditions and the following disclaimer in the documentation
12 * and/or other materials provided with the distribution.
13 * - Neither the name of Sun Microsystems, Inc. nor the names of its
14 * contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
21 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27 * POSSIBILITY OF SUCH DAMAGE.
28 */
29
30/*
31 * Copyright (c) 1986-1991 by Sun Microsystems Inc.
32 */
33
34/*
35 * svc_generic.c, Server side for RPC.
36 *
37 */
38#include <wintirpc.h>
39//#include <pthread.h>
40#include <reentrant.h>
41#include <sys/types.h>
42//#include <sys/socket.h>
43//#include <netinet/in.h>
44#include <rpc/rpc.h>
45#include <rpc/nettype.h>
46#include <stdio.h>
47#include <errno.h>
48#include <stdlib.h>
49#include <string.h>
50//#include <unistd.h>
51//#include <err.h>
52
53#include "rpc_com.h"
54#include <rpc/svc.h>
55
56extern int __svc_vc_setflag(SVCXPRT *, int);
57
58/*
59 * The highest level interface for server creation.
60 * It tries for all the nettokens in that particular class of token
61 * and returns the number of handles it can create and/or find.
62 *
63 * It creates a link list of all the handles it could create.
64 * If svc_create() is called multiple times, it uses the handle
65 * created earlier instead of creating a new handle every time.
66 */
67int
68svc_create(dispatch, prognum, versnum, nettype)
69 void (*dispatch)(struct svc_req *, SVCXPRT *);
70 rpcprog_t prognum; /* Program number */
71 rpcvers_t versnum; /* Version number */
72 const char *nettype; /* Networktype token */
73{
74 struct xlist {
75 SVCXPRT *xprt; /* Server handle */
76 struct xlist *next; /* Next item */
77 } *l;
78 static struct xlist *xprtlist; /* A link list of all the handles */
79 int num = 0;
80 SVCXPRT *xprt;
81 struct netconfig *nconf;
82 void *handle;
84
85/* VARIABLES PROTECTED BY xprtlist_lock: xprtlist */
86
87 if ((handle = __rpc_setconf(nettype)) == NULL) {
88 // XXX warnx("svc_create: unknown protocol");
89 return (0);
90 }
91 while ((nconf = __rpc_getconf(handle)) != NULL) {
93 for (l = xprtlist; l; l = l->next) {
94 if (strcmp(l->xprt->xp_netid, nconf->nc_netid) == 0) {
95 /* Found an old one, use it */
96 (void) rpcb_unset(prognum, versnum, nconf);
97 if (svc_reg(l->xprt, prognum, versnum,
98 dispatch, nconf) == FALSE) {
99 // XXX warnx(
100// "svc_create: could not register prog %u vers %u on %s",
101// (unsigned)prognum, (unsigned)versnum,
102// nconf->nc_netid);
103 } else {
104 num++;
105 }
106 break;
107 }
108 }
109 if (l == NULL) {
110 /* It was not found. Now create a new one */
111 xprt = svc_tp_create(dispatch, prognum, versnum, nconf);
112 if (xprt) {
113 l = (struct xlist *)malloc(sizeof (*l));
114 if (l == NULL) {
115 // XXX warnx("svc_create: no memory");
117 return (0);
118 }
119 l->xprt = xprt;
120 l->next = xprtlist;
121 xprtlist = l;
122 num++;
123 }
124 }
126 }
128 /*
129 * In case of num == 0; the error messages are generated by the
130 * underlying layers; and hence not needed here.
131 */
132 return (num);
133}
134
135/*
136 * The high level interface to svc_tli_create().
137 * It tries to create a server for "nconf" and registers the service
138 * with the rpcbind. It calls svc_tli_create();
139 */
140SVCXPRT *
141svc_tp_create(dispatch, prognum, versnum, nconf)
142 void (*dispatch)(struct svc_req *, SVCXPRT *);
143 rpcprog_t prognum; /* Program number */
144 rpcvers_t versnum; /* Version number */
145 const struct netconfig *nconf; /* Netconfig structure for the network */
146{
147 SVCXPRT *xprt;
148
149 if (nconf == NULL) {
150 // XXX warnx(
151// "svc_tp_create: invalid netconfig structure for prog %u vers %u",
152// (unsigned)prognum, (unsigned)versnum);
153 return (NULL);
154 }
155 xprt = svc_tli_create(RPC_ANYFD, nconf, NULL, 0, 0);
156 if (xprt == NULL) {
157 return (NULL);
158 }
159 /*LINTED const castaway*/
160 (void) rpcb_unset(prognum, versnum, (struct netconfig *) nconf);
161 if (svc_reg(xprt, prognum, versnum, dispatch, nconf) == FALSE) {
162 // XXX warnx(
163// "svc_tp_create: Could not register prog %u vers %u on %s",
164// (unsigned)prognum, (unsigned)versnum,
165// nconf->nc_netid);
166 SVC_DESTROY(xprt);
167 return (NULL);
168 }
169 return (xprt);
170}
171
172 /*
173 * If fd is RPC_ANYFD, then it opens a fd for the given transport
174 * provider (nconf cannot be NULL then). If the t_state is T_UNBND and
175 * bindaddr is NON-NULL, it performs a t_bind using the bindaddr. For
176 * NULL bindadr and Connection oriented transports, the value of qlen
177 * is set to 8.
178 *
179 * If sendsz or recvsz are zero, their default values are chosen.
180 */
181SVCXPRT *
182svc_tli_create(fd, nconf, bindaddr, sendsz, recvsz)
183 SOCKET fd; /* Connection end point */
184 const struct netconfig *nconf; /* Netconfig struct for nettoken */
185 const struct t_bind *bindaddr; /* Local bind address */
186 u_int sendsz; /* Max sendsize */
187 u_int recvsz; /* Max recvsize */
188{
189 SVCXPRT *xprt = NULL; /* service handle */
190 bool_t madefd = FALSE; /* whether fd opened here */
191 struct __rpc_sockinfo si;
192 struct sockaddr_storage ss;
193 socklen_t slen;
194
195 if (fd == RPC_ANYFD) {
196 if (nconf == NULL) {
197 // XXX warnx("svc_tli_create: invalid netconfig");
198 return (NULL);
199 }
200 fd = __rpc_nconf2fd(nconf);
201 if (fd == -1) {
202 // XXX warnx(
203// "svc_tli_create: could not open connection for %s",
204// nconf->nc_netid);
205 return (NULL);
206 }
207 __rpc_nconf2sockinfo(nconf, &si);
208 madefd = TRUE;
209 } else {
210 /*
211 * It is an open descriptor. Get the transport info.
212 */
213 if (!__rpc_fd2sockinfo(fd, &si)) {
214 // XXX warnx(
215// "svc_tli_create: could not get transport information");
216 return (NULL);
217 }
218 }
219
220 /*
221 * If the fd is unbound, try to bind it.
222 */
223 if (madefd || !__rpc_sockisbound(fd)) {
224 if (bindaddr == NULL) {
225 if (bindresvport(fd, NULL) < 0) {
226 memset(&ss, 0, sizeof ss);
227 ss.ss_family = si.si_af;
228 if (bind(fd, (struct sockaddr *)(void *)&ss,
230 // XXX warnx(
231// "svc_tli_create: could not bind to anonymous port");
232 goto freedata;
233 }
234 }
236 } else {
237 if (bind(fd,
238 (struct sockaddr *)bindaddr->addr.buf,
240 // XXX warnx(
241// "svc_tli_create: could not bind to requested address");
242 goto freedata;
243 }
244 listen(fd, (int)bindaddr->qlen);
245 }
246
247 }
248 /*
249 * call transport specific function.
250 */
251 switch (si.si_socktype) {
252 case SOCK_STREAM:
253 slen = sizeof ss;
254 if (getpeername(fd, (struct sockaddr *)(void *)&ss, &slen)
255 == 0) {
256 /* accepted socket */
257 xprt = svc_fd_create(fd, sendsz, recvsz);
258 } else
259 xprt = svc_vc_create(fd, sendsz, recvsz);
260 if (!nconf || !xprt)
261 break;
262#if 0
263 /* XXX fvdl */
264 if (strcmp(nconf->nc_protofmly, "inet") == 0 ||
265 strcmp(nconf->nc_protofmly, "inet6") == 0)
266 (void) __svc_vc_setflag(xprt, TRUE);
267#endif
268 break;
269 case SOCK_DGRAM:
270 xprt = svc_dg_create(fd, sendsz, recvsz);
271 break;
272 default:
273 // XXX warnx("svc_tli_create: bad service type");
274 goto freedata;
275 }
276
277 if (xprt == NULL)
278 /*
279 * The error messages here are spitted out by the lower layers:
280 * svc_vc_create(), svc_fd_create() and svc_dg_create().
281 */
282 goto freedata;
283
284 /* Fill in type of service */
286
287 if (nconf) {
288 xprt->xp_netid = strdup(nconf->nc_netid);
289 xprt->xp_tp = strdup(nconf->nc_device);
290 }
291 return (xprt);
292
293freedata:
294 if (madefd)
296 if (xprt) {
297 if (!madefd) /* so that svc_destroy doesnt close fd */
298 xprt->xp_fd = RPC_ANYFD;
299 SVC_DESTROY(xprt);
300 }
301 return (NULL);
302}
int strcmp(const char *String1, const char *String2)
Definition: utclib.c:469
void dispatch(HANDLE hStopEvent)
Definition: dispatch.c:70
int bindresvport(SOCKET sd, struct sockaddr_in *sin)
Definition: bindresvport.c:53
r l[0]
Definition: byte_order.h:167
#define malloc
Definition: debug_ros.c:4
#define RPC_ANYFD
Definition: svc.h:328
#define SVC_DESTROY(xprt)
Definition: svc.h:184
UINT32 u_int
Definition: types.h:82
#define NULL
Definition: types.h:112
u_int32_t rpcprog_t
Definition: types.h:104
int32_t bool_t
Definition: types.h:101
#define TRUE
Definition: types.h:120
#define FALSE
Definition: types.h:117
u_int32_t rpcvers_t
Definition: types.h:105
#define SOCK_STREAM
Definition: tcpip.h:118
GLuint GLuint num
Definition: glext.h:9618
#define ss
Definition: i386-dis.c:442
int socklen_t
Definition: tcp.c:35
mutex_t xprtlist_lock
Definition: mt_misc.c:97
#define closesocket
Definition: ncftp.h:477
static unsigned __int64 next
Definition: rand_nt.c:6
#define mutex_lock(m)
Definition: reentrant.h:128
#define mutex_unlock(m)
Definition: reentrant.h:129
void * __rpc_setconf(char *nettype) const
Definition: rpc_generic.c:305
struct netconfig * __rpc_getconf(void *vhandle)
Definition: rpc_generic.c:348
int __rpc_fd2sockinfo(SOCKET fd, struct __rpc_sockinfo *sip)
Definition: rpc_generic.c:481
void __rpc_endconf(void *vhandle)
Definition: rpc_generic.c:425
int __rpc_nconf2sockinfo(const struct netconfig *nconf, struct __rpc_sockinfo *sip)
Definition: rpc_generic.c:540
SOCKET __rpc_nconf2fd(const struct netconfig *nconf)
Definition: rpc_generic.c:562
bool_t rpcb_unset(rpcprog_t program, rpcvers_t version, const struct netconfig *nconf)
Definition: rpcb_clnt.c:581
_Check_return_ _CRTIMP char *__cdecl strdup(_In_opt_z_ const char *_Src)
static int fd
Definition: io.c:51
#define memset(x, y, z)
Definition: compat.h:39
INT WSAAPI getpeername(IN SOCKET s, OUT LPSOCKADDR name, IN OUT INT FAR *namelen)
Definition: sockctrl.c:167
INT WSAAPI listen(IN SOCKET s, IN INT backlog)
Definition: sockctrl.c:123
INT WSAAPI bind(IN SOCKET s, IN CONST struct sockaddr *name, IN INT namelen)
Definition: socklife.c:36
int __rpc_sockisbound(SOCKET)
Definition: rpc_generic.c:909
int __rpc_socktype2seman(int)
Definition: rpc_generic.c:859
int si_socktype
Definition: types.h:167
int si_alen
Definition: types.h:168
ADDRESS_FAMILY si_af
Definition: types.h:165
char * xp_netid
Definition: svc.h:118
char * xp_tp
Definition: svc.h:117
int xp_type
Definition: svc.h:126
SOCKET xp_fd
Definition: svc.h:91
Definition: module.h:446
char * nc_netid
Definition: netconfig.h:16
char * nc_protofmly
Definition: netconfig.h:19
char * nc_device
Definition: netconfig.h:21
Definition: svc.h:132
Definition: types.h:155
unsigned int qlen
Definition: types.h:157
struct netbuf addr
Definition: types.h:156
bool_t svc_reg(SVCXPRT *xprt, const rpcprog_t prog, const rpcvers_t vers, void *dispatch, const struct netconfig *nconf)
Definition: svc.c:178
SVCXPRT * svc_dg_create(int fd, u_int sendsize, u_int recvsize)
Definition: svc_dg.c:95
SVCXPRT * svc_tli_create(SOCKET fd, const struct netconfig *nconf, const struct t_bind *bindaddr, u_int sendsz, u_int recvsz)
Definition: svc_generic.c:182
SVCXPRT * svc_tp_create(void *dispatch, rpcprog_t prognum, rpcvers_t versnum, const struct netconfig *nconf)
Definition: svc_generic.c:141
int __svc_vc_setflag(SVCXPRT *, int)
int svc_create(void *dispatch, rpcprog_t prognum, rpcvers_t versnum, const char *nettype)
Definition: svc_generic.c:68
SVCXPRT * svc_fd_create(SOCKET fd, u_int sendsize, u_int recvsize)
Definition: svc_vc.c:204
SVCXPRT * svc_vc_create(int fd, u_int sendsize, u_int recvsize)
Definition: svc_vc.c:146
#define SOMAXCONN
Definition: winsock.h:399
#define SOCK_DGRAM
Definition: winsock.h:336
UINT_PTR SOCKET
Definition: winsock.h:47
#define SOCKET_ERROR
Definition: winsock.h:333