1 /*
2 * Copyright (c) 1988-1999 by Sun Microsystems, Inc.
3 * All rights reserved.
4 */
5
6 #include <stdio.h>
7 #include <stdlib.h>
8 #include <rpc/rpc.h>
9 #include <errno.h>
10 #include <syslog.h>
11 #include <rpc/nettype.h>
12 #include <netconfig.h>
13 #include <netdir.h>
14 #include <tiuser.h>
15 #include <fcntl.h>
16 #include <string.h>
17 #include <rpc/svc.h>
18 #include <locale.h>
19
20 extern int __rpc_negotiate_uid(int);
21
22 /*
23 * The highest level interface for server creation.
24 * Copied from svc_generic.c and cmd/keyserv/key_generic.c, but adapted
25 * to work only for TPI_CLTS semantics, and to be called only once
26 * from kwarnd.c. Returns 1 (interface created) on success and 0
27 * (no interfaces created) on failure.
28 */
29 int
svc_create_local_service(void (* dispatch)(),u_long prognum,u_long versnum,char * nettype,char * servname)30 svc_create_local_service(void (*dispatch) (), /* Dispatch function */
31 u_long prognum, /* Program number */
32 u_long versnum, /* Version number */
33 char *nettype, /* Networktype token */
34 char *servname) /* name of the srvc */
35 {
36 int num = 0;
37 SVCXPRT *xprt;
38 struct netconfig *nconf;
39 struct t_bind *bind_addr;
40 void *net;
41 int fd;
42 struct nd_hostserv ns;
43 struct nd_addrlist *nas;
44
45 if ((net = __rpc_setconf(nettype)) == 0) {
46 (void) syslog(LOG_ERR,
47 gettext("svc_create: could not read netconfig database"));
48 return (0);
49 }
50 while (nconf = __rpc_getconf(net)) {
51 if ((strcmp(nconf->nc_protofmly, NC_LOOPBACK)) ||
52 (nconf->nc_semantics != NC_TPI_COTS_ORD))
53 continue;
54
55 if ((fd = t_open(nconf->nc_device, O_RDWR, NULL)) < 0) {
56 (void) syslog(LOG_ERR,
57 gettext("svc_create: %s: cannot open connection: %s"),
58 nconf->nc_netid, t_errlist[t_errno]);
59 break;
60 }
61
62 /*
63 * Negotiate for returning the uid of the caller.
64 * This should be done before enabling the endpoint for
65 * service via t_bind() (called in svc_tli_create())
66 * so that requests to kwarnd contain the uid.
67 */
68 if (__rpc_negotiate_uid(fd) != 0) {
69 syslog(LOG_ERR,
70 gettext("Could not negotiate for"
71 " uid with loopback transport %s"),
72 nconf->nc_netid);
73 t_close(fd);
74 break;
75 }
76
77 /* LINTED pointer alignment */
78 bind_addr = (struct t_bind *) t_alloc(fd, T_BIND, T_ADDR);
79 if ((bind_addr == NULL)) {
80 (void) t_close(fd);
81 (void) syslog(LOG_ERR,
82 gettext("svc_create: t_alloc failed\n"));
83 break;
84 }
85 ns.h_host = HOST_SELF;
86 ns.h_serv = servname;
87 if (!netdir_getbyname(nconf, &ns, &nas)) {
88 /* Copy the address */
89 bind_addr->addr.len = nas->n_addrs->len;
90 (void) memcpy(bind_addr->addr.buf, nas->n_addrs->buf,
91 (int) nas->n_addrs->len);
92 bind_addr->qlen = 8;
93 netdir_free((char *) nas, ND_ADDRLIST);
94 } else {
95 (void) syslog(LOG_ERR,
96 gettext("svc_create: no well known "
97 "address for %s on %s\n"),
98 servname, nconf->nc_netid);
99 (void) t_free((char *) bind_addr, T_BIND);
100 bind_addr = NULL;
101 }
102
103 xprt = svc_tli_create(fd, nconf, bind_addr, 0, 0);
104 if (bind_addr)
105 (void) t_free((char *) bind_addr, T_BIND);
106 if (xprt == NULL) {
107 (void) t_close(fd);
108 (void) syslog(LOG_ERR,
109 gettext("svc_create: svc_tli_create failed\n"));
110 break;
111 } else {
112 (void) rpcb_unset(prognum, versnum, nconf);
113 if (svc_reg(xprt, prognum, versnum, dispatch, nconf)
114 == FALSE) {
115 (void) syslog(LOG_ERR,
116 gettext("svc_create: cannot"
117 " register %d vers %d on %s"),
118 prognum, versnum, nconf->nc_netid);
119 SVC_DESTROY(xprt); /* also t_closes fd */
120 break;
121 }
122 num = 1;
123 break;
124 }
125 }
126 __rpc_endconf(net);
127 return (num);
128 }
129