1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate  * Copyright (c) 1988-1999 by Sun Microsystems, Inc.
3*7c478bd9Sstevel@tonic-gate  * All rights reserved.
4*7c478bd9Sstevel@tonic-gate  */
5*7c478bd9Sstevel@tonic-gate 
6*7c478bd9Sstevel@tonic-gate #include <stdio.h>
7*7c478bd9Sstevel@tonic-gate #include <stdlib.h>
8*7c478bd9Sstevel@tonic-gate #include <rpc/rpc.h>
9*7c478bd9Sstevel@tonic-gate #include <errno.h>
10*7c478bd9Sstevel@tonic-gate #include <syslog.h>
11*7c478bd9Sstevel@tonic-gate #include <rpc/nettype.h>
12*7c478bd9Sstevel@tonic-gate #include <netconfig.h>
13*7c478bd9Sstevel@tonic-gate #include <netdir.h>
14*7c478bd9Sstevel@tonic-gate #include <tiuser.h>
15*7c478bd9Sstevel@tonic-gate #include <fcntl.h>
16*7c478bd9Sstevel@tonic-gate #include <string.h>
17*7c478bd9Sstevel@tonic-gate #include <rpc/svc.h>
18*7c478bd9Sstevel@tonic-gate #include <locale.h>
19*7c478bd9Sstevel@tonic-gate 
20*7c478bd9Sstevel@tonic-gate extern int __rpc_negotiate_uid(int);
21*7c478bd9Sstevel@tonic-gate 
22*7c478bd9Sstevel@tonic-gate /*
23*7c478bd9Sstevel@tonic-gate  * The highest level interface for server creation.
24*7c478bd9Sstevel@tonic-gate  * Copied from svc_generic.c and cmd/keyserv/key_generic.c, but adapted
25*7c478bd9Sstevel@tonic-gate  * to work only for TPI_CLTS semantics, and to be called only once
26*7c478bd9Sstevel@tonic-gate  * from kwarnd.c. Returns 1 (interface created) on success and 0
27*7c478bd9Sstevel@tonic-gate  * (no interfaces created) on failure.
28*7c478bd9Sstevel@tonic-gate  */
29*7c478bd9Sstevel@tonic-gate int
svc_create_local_service(void (* dispatch)(),u_long prognum,u_long versnum,char * nettype,char * servname)30*7c478bd9Sstevel@tonic-gate svc_create_local_service(void (*dispatch) (),		/* Dispatch function */
31*7c478bd9Sstevel@tonic-gate 			u_long prognum,			/* Program number */
32*7c478bd9Sstevel@tonic-gate 			u_long versnum,			/* Version number */
33*7c478bd9Sstevel@tonic-gate 			char *nettype,			/* Networktype token */
34*7c478bd9Sstevel@tonic-gate 			char *servname)			/* name of the srvc */
35*7c478bd9Sstevel@tonic-gate {
36*7c478bd9Sstevel@tonic-gate 	int num = 0;
37*7c478bd9Sstevel@tonic-gate 	SVCXPRT *xprt;
38*7c478bd9Sstevel@tonic-gate 	struct netconfig *nconf;
39*7c478bd9Sstevel@tonic-gate 	struct t_bind *bind_addr;
40*7c478bd9Sstevel@tonic-gate 	void *net;
41*7c478bd9Sstevel@tonic-gate 	int fd;
42*7c478bd9Sstevel@tonic-gate 	struct nd_hostserv ns;
43*7c478bd9Sstevel@tonic-gate 	struct nd_addrlist *nas;
44*7c478bd9Sstevel@tonic-gate 
45*7c478bd9Sstevel@tonic-gate 	if ((net = __rpc_setconf(nettype)) == 0) {
46*7c478bd9Sstevel@tonic-gate 		(void) syslog(LOG_ERR,
47*7c478bd9Sstevel@tonic-gate 		gettext("svc_create: could not read netconfig database"));
48*7c478bd9Sstevel@tonic-gate 		return (0);
49*7c478bd9Sstevel@tonic-gate 	}
50*7c478bd9Sstevel@tonic-gate 	while (nconf = __rpc_getconf(net)) {
51*7c478bd9Sstevel@tonic-gate 		if ((strcmp(nconf->nc_protofmly, NC_LOOPBACK)) ||
52*7c478bd9Sstevel@tonic-gate 				(nconf->nc_semantics != NC_TPI_COTS_ORD))
53*7c478bd9Sstevel@tonic-gate 			continue;
54*7c478bd9Sstevel@tonic-gate 
55*7c478bd9Sstevel@tonic-gate 		if ((fd = t_open(nconf->nc_device, O_RDWR, NULL)) < 0) {
56*7c478bd9Sstevel@tonic-gate 			(void) syslog(LOG_ERR,
57*7c478bd9Sstevel@tonic-gate 			gettext("svc_create: %s: cannot open connection: %s"),
58*7c478bd9Sstevel@tonic-gate 				nconf->nc_netid, t_errlist[t_errno]);
59*7c478bd9Sstevel@tonic-gate 			break;
60*7c478bd9Sstevel@tonic-gate 		}
61*7c478bd9Sstevel@tonic-gate 
62*7c478bd9Sstevel@tonic-gate 		/*
63*7c478bd9Sstevel@tonic-gate 		 * Negotiate for returning the uid of the caller.
64*7c478bd9Sstevel@tonic-gate 		 * This should be done before enabling the endpoint for
65*7c478bd9Sstevel@tonic-gate 		 * service via t_bind() (called in svc_tli_create())
66*7c478bd9Sstevel@tonic-gate 		 * so that requests to kwarnd contain the uid.
67*7c478bd9Sstevel@tonic-gate 		 */
68*7c478bd9Sstevel@tonic-gate 		if (__rpc_negotiate_uid(fd) != 0) {
69*7c478bd9Sstevel@tonic-gate 			syslog(LOG_ERR,
70*7c478bd9Sstevel@tonic-gate 			gettext("Could not negotiate for"
71*7c478bd9Sstevel@tonic-gate 				" uid with loopback transport %s"),
72*7c478bd9Sstevel@tonic-gate 				nconf->nc_netid);
73*7c478bd9Sstevel@tonic-gate 			t_close(fd);
74*7c478bd9Sstevel@tonic-gate 			break;
75*7c478bd9Sstevel@tonic-gate 		}
76*7c478bd9Sstevel@tonic-gate 
77*7c478bd9Sstevel@tonic-gate 		/* LINTED pointer alignment */
78*7c478bd9Sstevel@tonic-gate 		bind_addr = (struct t_bind *) t_alloc(fd, T_BIND, T_ADDR);
79*7c478bd9Sstevel@tonic-gate 		if ((bind_addr == NULL)) {
80*7c478bd9Sstevel@tonic-gate 			(void) t_close(fd);
81*7c478bd9Sstevel@tonic-gate 			(void) syslog(LOG_ERR,
82*7c478bd9Sstevel@tonic-gate 				gettext("svc_create: t_alloc failed\n"));
83*7c478bd9Sstevel@tonic-gate 			break;
84*7c478bd9Sstevel@tonic-gate 		}
85*7c478bd9Sstevel@tonic-gate 		ns.h_host = HOST_SELF;
86*7c478bd9Sstevel@tonic-gate 		ns.h_serv = servname;
87*7c478bd9Sstevel@tonic-gate 		if (!netdir_getbyname(nconf, &ns, &nas)) {
88*7c478bd9Sstevel@tonic-gate 			/* Copy the address */
89*7c478bd9Sstevel@tonic-gate 			bind_addr->addr.len = nas->n_addrs->len;
90*7c478bd9Sstevel@tonic-gate 			(void) memcpy(bind_addr->addr.buf, nas->n_addrs->buf,
91*7c478bd9Sstevel@tonic-gate 				(int) nas->n_addrs->len);
92*7c478bd9Sstevel@tonic-gate 			bind_addr->qlen = 8;
93*7c478bd9Sstevel@tonic-gate 			netdir_free((char *) nas, ND_ADDRLIST);
94*7c478bd9Sstevel@tonic-gate 		} else {
95*7c478bd9Sstevel@tonic-gate 			(void) syslog(LOG_ERR,
96*7c478bd9Sstevel@tonic-gate 			gettext("svc_create: no well known "
97*7c478bd9Sstevel@tonic-gate 				"address for %s on %s\n"),
98*7c478bd9Sstevel@tonic-gate 				servname, nconf->nc_netid);
99*7c478bd9Sstevel@tonic-gate 			(void) t_free((char *) bind_addr, T_BIND);
100*7c478bd9Sstevel@tonic-gate 			bind_addr = NULL;
101*7c478bd9Sstevel@tonic-gate 		}
102*7c478bd9Sstevel@tonic-gate 
103*7c478bd9Sstevel@tonic-gate 		xprt = svc_tli_create(fd, nconf, bind_addr, 0, 0);
104*7c478bd9Sstevel@tonic-gate 		if (bind_addr)
105*7c478bd9Sstevel@tonic-gate 			(void) t_free((char *) bind_addr, T_BIND);
106*7c478bd9Sstevel@tonic-gate 		if (xprt == NULL) {
107*7c478bd9Sstevel@tonic-gate 			(void) t_close(fd);
108*7c478bd9Sstevel@tonic-gate 			(void) syslog(LOG_ERR,
109*7c478bd9Sstevel@tonic-gate 			    gettext("svc_create: svc_tli_create failed\n"));
110*7c478bd9Sstevel@tonic-gate 			break;
111*7c478bd9Sstevel@tonic-gate 		} else {
112*7c478bd9Sstevel@tonic-gate 			(void) rpcb_unset(prognum, versnum, nconf);
113*7c478bd9Sstevel@tonic-gate 			if (svc_reg(xprt, prognum, versnum, dispatch, nconf)
114*7c478bd9Sstevel@tonic-gate 					== FALSE) {
115*7c478bd9Sstevel@tonic-gate 				(void) syslog(LOG_ERR,
116*7c478bd9Sstevel@tonic-gate 				gettext("svc_create: cannot"
117*7c478bd9Sstevel@tonic-gate 					" register %d vers %d on %s"),
118*7c478bd9Sstevel@tonic-gate 					prognum, versnum, nconf->nc_netid);
119*7c478bd9Sstevel@tonic-gate 				SVC_DESTROY(xprt);	/* also t_closes fd */
120*7c478bd9Sstevel@tonic-gate 				break;
121*7c478bd9Sstevel@tonic-gate 			}
122*7c478bd9Sstevel@tonic-gate 			num = 1;
123*7c478bd9Sstevel@tonic-gate 			break;
124*7c478bd9Sstevel@tonic-gate 		}
125*7c478bd9Sstevel@tonic-gate 	}
126*7c478bd9Sstevel@tonic-gate 	__rpc_endconf(net);
127*7c478bd9Sstevel@tonic-gate 	return (num);
128*7c478bd9Sstevel@tonic-gate }
129