1/* $NetBSD: osd-target.c,v 1.2 2009/06/30 02:44:52 agc Exp $ */
2
3/*
4 * Copyright � 2006 Alistair Crooks.  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
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote
15 *    products derived from this software without specific prior written
16 *    permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
19 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
22 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
24 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
26 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
27 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30#include <sys/cdefs.h>
31
32#ifndef lint
33__COPYRIGHT("@(#) Copyright � 2006 \
34	        The NetBSD Foundation, Inc.  All rights reserved.");
35__RCSID("$NetBSD: osd-target.c,v 1.2 2009/06/30 02:44:52 agc Exp $");
36#endif
37#include "config.h"
38
39#define EXTERN
40
41#ifdef HAVE_SIGNAL_H
42#include <signal.h>
43#endif
44
45#include <stdio.h>
46#include <stdlib.h>
47
48#ifdef HAVE_STRING_H
49#include <string.h>
50#endif
51
52#include <unistd.h>
53
54#include "iscsi.h"
55#include "iscsiutil.h"
56#include "target.h"
57#include "device.h"
58
59#include "conffile.h"
60#include "storage.h"
61
62/*
63 * Globals
64 */
65
66static int      g_main_pid;
67static globals_t	g;
68
69/*
70 * Control-C handler
71 */
72
73/* ARGSUSED0 */
74static void
75handler(int s)
76{
77	if (ISCSI_GETPID != g_main_pid)
78		return;
79	if (target_shutdown(&g) != 0) {
80		iscsi_err(__FILE__, __LINE__, "target_shutdown() failed\n");
81		return;
82	}
83	return;
84}
85
86int
87main(int argc, char **argv)
88{
89	const char	*cf;
90	targv_t		tv;
91	devv_t		dv;
92	extv_t		ev;
93	char            TargetName[1024];
94	int		detach_me_harder;
95	int             i;
96
97	(void) memset(&g, 0x0, sizeof(g));
98	(void) memset(&tv, 0x0, sizeof(tv));
99	(void) memset(&dv, 0x0, sizeof(dv));
100	(void) memset(&ev, 0x0, sizeof(ev));
101
102	/* set defaults */
103	(void) strlcpy(TargetName, DEFAULT_TARGET_NAME, sizeof(TargetName));
104	g.port = ISCSI_PORT;
105	detach_me_harder = 1;
106
107	cf = _PATH_OSD_TARGETS;
108
109	while ((i = getopt(argc, argv, "Dd:p:t:v:")) != -1) {
110		switch (i) {
111		case 'D':
112			detach_me_harder = 0;
113			break;
114		case 'd':
115			device_set_var("directory", optarg);
116			break;
117		case 'f':
118			cf = optarg;
119			break;
120		case 'p':
121			g.port = (uint16_t) atoi(optarg);
122			break;
123		case 't':
124			(void) strlcpy(TargetName, optarg, sizeof(TargetName));
125			break;
126		case 'v':
127			if (strcmp(optarg, "net") == 0) {
128				set_debug("net");
129			} else if (strcmp(optarg, "iscsi") == 0) {
130				set_debug("iscsi");
131			} else if (strcmp(optarg, "scsi") == 0) {
132				set_debug("scsi");
133			} else if (strcmp(optarg, "osd") == 0) {
134				set_debug("osd");
135			} else if (strcmp(optarg, "all") == 0) {
136				set_debug("all");
137			}
138			break;
139		}
140	}
141
142	if (!read_conf_file(cf, &tv, &dv, &ev)) {
143		(void) fprintf(stderr, "Error: can't open `%s'\n", cf);
144		return EXIT_FAILURE;
145	}
146
147	(void) signal(SIGPIPE, SIG_IGN);
148
149	(void) signal(SIGINT, handler);
150	g_main_pid = ISCSI_GETPID;
151
152	if (tv.c == 0) {
153		(void) fprintf(stderr, "No targets to initialise\n");
154		return EXIT_FAILURE;
155	}
156	/* Initialize target */
157	for (i = optind ; i < argc ; i++) {
158		if (target_init(&g, &tv, TargetName, i) != 0) {
159			iscsi_err(__FILE__, __LINE__, "target_init() failed\n");
160			exit(EXIT_FAILURE);
161		}
162	}
163
164#ifdef HAVE_DAEMON
165	/* if we are supposed to be a daemon, detach from controlling tty */
166	if (detach_me_harder && daemon(0, 0) < 0) {
167		iscsi_err(__FILE__, __LINE__, "daemon() failed\n");
168		exit(EXIT_FAILURE);
169	}
170#endif
171
172	/* write pid to a file */
173	write_pid_file(_PATH_OSD_PID_FILE);
174
175	/* Wait for connections */
176	if (target_listen(&g) != 0) {
177		iscsi_err(__FILE__, __LINE__, "target_listen() failed\n");
178	}
179
180	return EXIT_SUCCESS;
181}
182