GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: usr.sbin/rpc.lockd/lockd.c Lines: 0 71 0.0 %
Date: 2017-11-07 Branches: 0 37 0.0 %

Line Branch Exec Source
1
/*	$OpenBSD: lockd.c,v 1.14 2015/04/18 18:28:38 deraadt Exp $	*/
2
3
/*
4
 * Copyright (c) 1995
5
 *	A.R. Gordon (andrew.gordon@net-tel.co.uk).  All rights reserved.
6
 *
7
 * Redistribution and use in source and binary forms, with or without
8
 * modification, are permitted provided that the following conditions
9
 * are met:
10
 * 1. Redistributions of source code must retain the above copyright
11
 *    notice, this list of conditions and the following disclaimer.
12
 * 2. Redistributions in binary form must reproduce the above copyright
13
 *    notice, this list of conditions and the following disclaimer in the
14
 *    documentation and/or other materials provided with the distribution.
15
 * 3. All advertising materials mentioning features or use of this software
16
 *    must display the following acknowledgement:
17
 *	This product includes software developed for the FreeBSD project
18
 * 4. Neither the name of the author nor the names of any co-contributors
19
 *    may be used to endorse or promote products derived from this software
20
 *    without specific prior written permission.
21
 *
22
 * THIS SOFTWARE IS PROVIDED BY ANDREW GORDON AND CONTRIBUTORS ``AS IS'' AND
23
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
26
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32
 * SUCH DAMAGE.
33
 *
34
 */
35
36
#include <sys/socket.h>
37
#include <netinet/in.h>
38
#include <rpc/rpc.h>
39
#include <rpc/pmap_clnt.h>
40
#include <rpcsvc/sm_inter.h>
41
#include "nlm_prot.h"
42
#include <arpa/inet.h>
43
#include <stdio.h>
44
#include <syslog.h>
45
#include <stdlib.h>
46
#include <err.h>
47
#include <errno.h>
48
#include <signal.h>
49
#include <limits.h>
50
#include <string.h>
51
#include <unistd.h>
52
#include <netdb.h>
53
54
#include "lockd.h"
55
56
int debug_level = 0;	/* 0 = no debugging syslog() calls */
57
int _rpcsvcdirty = 0;
58
int grace_expired;
59
60
void nlm_prog_0(struct svc_req *, SVCXPRT *);
61
void nlm_prog_1(struct svc_req *, SVCXPRT *);
62
void nlm_prog_3(struct svc_req *, SVCXPRT *);
63
void nlm_prog_4(struct svc_req *, SVCXPRT *);
64
65
static void sigalarm_handler(int);
66
static void usage(void);
67
68
int
69
main(int argc, char *argv[])
70
{
71
	SVCXPRT *transp;
72
	const char *errstr;
73
	int ch;
74
	struct sigaction sigchild, sigalarm;
75
	int grace_period = 30;
76
77
	while ((ch = getopt(argc, argv, "d:g:")) != (-1)) {
78
		switch (ch) {
79
		case 'd':
80
			debug_level = strtonum(optarg, 1, INT_MAX, &errstr);
81
			if (errstr) {
82
				usage();
83
				/* NOTREACHED */
84
			}
85
			break;
86
		case 'g':
87
			grace_period = strtonum(optarg, 1, INT_MAX, &errstr);
88
			if (errstr) {
89
				usage();
90
				/* NOTREACHED */
91
			}
92
			break;
93
		default:
94
		case '?':
95
			usage();
96
			/* NOTREACHED */
97
		}
98
	}
99
100
	(void) pmap_unset(NLM_PROG, NLM_SM);
101
	(void) pmap_unset(NLM_PROG, NLM_VERS);
102
	(void) pmap_unset(NLM_PROG, NLM_VERSX);
103
	(void) pmap_unset(NLM_PROG, NLM_VERS4);
104
105
	transp = svcudp_create(RPC_ANYSOCK);
106
	if (transp == NULL) {
107
		fprintf(stderr, "cannot create udp service.\n");
108
		exit(1);
109
	}
110
	if (!svc_register(transp, NLM_PROG, NLM_SM,
111
	    (void (*) (struct svc_req *, SVCXPRT *)) nlm_prog_0, IPPROTO_UDP)) {
112
		fprintf(stderr, "unable to register (NLM_PROG, NLM_SM, udp).\n");
113
		exit(1);
114
	}
115
	if (!svc_register(transp, NLM_PROG, NLM_VERS,
116
	    (void (*) (struct svc_req *, SVCXPRT *)) nlm_prog_1, IPPROTO_UDP)) {
117
		fprintf(stderr, "unable to register (NLM_PROG, NLM_VERS, udp).\n");
118
		exit(1);
119
	}
120
	if (!svc_register(transp, NLM_PROG, NLM_VERSX,
121
	    (void (*) (struct svc_req *, SVCXPRT *)) nlm_prog_3, IPPROTO_UDP)) {
122
		fprintf(stderr, "unable to register (NLM_PROG, NLM_VERSX, udp).\n");
123
		exit(1);
124
	}
125
	if (!svc_register(transp, NLM_PROG, NLM_VERS4,
126
	    (void (*) (struct svc_req *, SVCXPRT *)) nlm_prog_4, IPPROTO_UDP)) {
127
		fprintf(stderr, "unable to register (NLM_PROG, NLM_VERS4, udp).\n");
128
		exit(1);
129
	}
130
	transp = svctcp_create(RPC_ANYSOCK, 0, 0);
131
	if (transp == NULL) {
132
		fprintf(stderr, "cannot create tcp service.\n");
133
		exit(1);
134
	}
135
	if (!svc_register(transp, NLM_PROG, NLM_VERS,
136
	    (void (*) (struct svc_req *, SVCXPRT *)) nlm_prog_1, IPPROTO_TCP)) {
137
		fprintf(stderr, "unable to register (NLM_PROG, NLM_VERS, tcp).\n");
138
		exit(1);
139
	}
140
	if (!svc_register(transp, NLM_PROG, NLM_VERSX,
141
	    (void (*) (struct svc_req *, SVCXPRT *)) nlm_prog_3, IPPROTO_TCP)) {
142
		fprintf(stderr, "unable to register (NLM_PROG, NLM_VERSX, tcp).\n");
143
		exit(1);
144
	}
145
	if (!svc_register(transp, NLM_PROG, NLM_VERS4,
146
	    (void (*) (struct svc_req *, SVCXPRT *)) nlm_prog_4, IPPROTO_TCP)) {
147
		fprintf(stderr, "unable to register (NLM_PROG, NLM_VERS4, tcp).\n");
148
		exit(1);
149
	}
150
151
	/*
152
	 * Note that it is NOT sensible to run this program from inetd - the
153
	 * protocol assumes that it will run immediately at boot time.
154
	 */
155
	if (daemon(0, 0) == -1) {
156
		err(1, "cannot fork");
157
		/* NOTREACHED */
158
	}
159
160
	openlog("rpc.lockd", 0, LOG_DAEMON);
161
	if (debug_level)
162
		syslog(LOG_INFO, "Starting, debug level %d", debug_level);
163
	else
164
		syslog(LOG_INFO, "Starting");
165
166
	sigchild.sa_handler = sigchild_handler;
167
	sigemptyset(&sigchild.sa_mask);
168
	sigchild.sa_flags = SA_RESTART;
169
	if (sigaction(SIGCHLD, &sigchild, NULL) != 0) {
170
		syslog(LOG_WARNING, "sigaction(SIGCHLD) failed (%m)");
171
		exit(1);
172
	}
173
	sigalarm.sa_handler = sigalarm_handler;
174
	sigemptyset(&sigalarm.sa_mask);
175
	sigalarm.sa_flags = SA_RESETHAND; /* should only happen once */
176
	sigalarm.sa_flags |= SA_RESTART;
177
	if (sigaction(SIGALRM, &sigalarm, NULL) != 0) {
178
		syslog(LOG_WARNING, "sigaction(SIGALRM) failed (%m)");
179
		exit(1);
180
	}
181
	grace_expired = 0;
182
	if (alarm(10) == (unsigned int)-1) {
183
		syslog(LOG_WARNING, "alarm failed (%m)");
184
		exit(1);
185
	}
186
187
	svc_run();		/* Should never return */
188
	return 1;
189
}
190
191
static void
192
/*ARGSUSED*/
193
sigalarm_handler(int s)
194
{
195
	grace_expired = 1;
196
}
197
198
static void
199
usage()
200
{
201
	errx(1, "usage: rpc.lockd [-d [debug_level]] [-g grace_period]");
202
}