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
66 static int g_main_pid;
67 static globals_t g;
68
69 /*
70 * Control-C handler
71 */
72
73 /* ARGSUSED0 */
74 static void
handler(int s)75 handler(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
86 int
main(int argc,char ** argv)87 main(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