external/bsd/iscsi/dist/src/target/iscsi-target.c

   1 /* $NetBSD: iscsi-target.c,v 1.13 2007/11/12 23:25:41 agc Exp $ */
   2
   3 /*-
   4  * Copyright (c) 2009 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Alistair Crooks (agc@netbsd.org)
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31 #include "config.h"
  32
  33 #ifdef HAVE_SIGNAL_H
  34 #include <signal.h>
  35 #endif
  36
  37 #include <ctype.h>
  38 #include <stdio.h>
  39 #include <stdlib.h>
  40
  41 #ifdef HAVE_STRING_H
  42 #include <string.h>
  43 #endif
  44
  45 #include <unistd.h>
  46
  47 #include "iscsi.h"
  48
  49
  50 int
  51 main(int argc, char **argv)
  52 {
  53         iscsi_target_t  tgt;
  54         char            buf[32];
  55         int             detach_me_harder;
  56         int             i;
  57
  58         detach_me_harder = 1;
  59         iscsi_target_set_defaults(&tgt);
  60         while ((i = getopt(argc, argv, "46b:Df:p:s:t:Vv:")) != -1) {
  61                 switch (i) {
  62                 case '4':
  63                 case '6':
  64                         (void) snprintf(buf, sizeof(buf), "%d", i);
  65                         iscsi_target_setvar(&tgt, "address family", buf);
  66                         break;
  67                 case 'b':
  68                         iscsi_target_setvar(&tgt, "blocklen", optarg);
  69                         break;
  70                 case 'D':
  71                         detach_me_harder = 0;
  72                         break;
  73                 case 'f':
  74                         iscsi_target_setvar(&tgt, "configfile", optarg);
  75                         break;
  76                 case 'p':
  77                         iscsi_target_setvar(&tgt, "target port", optarg);
  78                         break;
  79                 case 's':
  80                         if ((i = atoi(optarg)) > 0 && i < 128) {
  81                                 iscsi_target_setvar(&tgt, "max sessions", optarg);
  82                         }
  83                         break;
  84                 case 't':
  85                         iscsi_target_setvar(&tgt, "iqn", optarg);
  86                         break;
  87                 case 'V':
  88                         (void) printf("\"%s\" %s\nPlease send all bug reports to %s\n", PACKAGE_NAME, PACKAGE_VERSION, PACKAGE_BUGREPORT);
  89                         exit(EXIT_SUCCESS);
  90                         /* NOTREACHED */
  91                 case 'v':
  92                         if (strcmp(optarg, "net") == 0) {
  93                                 iscsi_target_setvar(&tgt, "debug", "net");
  94                         } else if (strcmp(optarg, "iscsi") == 0) {
  95                                 iscsi_target_setvar(&tgt, "debug", "iscsi");
  96                         } else if (strcmp(optarg, "scsi") == 0) {
  97                                 iscsi_target_setvar(&tgt, "debug", "scsi");
  98                         } else if (strcmp(optarg, "all") == 0) {
  99                                 iscsi_target_setvar(&tgt, "debug", "all");
 100                         }
 101                         break;
 102                 }
 103         }
 104
 105         (void) signal(SIGPIPE, SIG_IGN);
 106
 107         /* Initialize target */
 108         if (iscsi_target_start(&tgt) != 0) {
 109                 (void) fprintf(stderr, "iscsi_target_start() failed\n");
 110                 exit(EXIT_FAILURE);
 111         }
 112
 113 #ifdef HAVE_DAEMON
 114         /* if we are supposed to be a daemon, detach from controlling tty */
 115         if (detach_me_harder && daemon(0, 0) < 0) {
 116                 (void) fprintf(stderr, "daemon() failed\n");
 117                 exit(EXIT_FAILURE);
 118         }
 119 #endif
 120
 121         /* write pid to a file */
 122         iscsi_target_write_pidfile(NULL);
 123
 124         /* Wait for connections */
 125         if (iscsi_target_listen(&tgt) != 0) {
 126                 (void) fprintf(stderr, "iscsi_target_listen() failed\n");
 127         }
 128
 129         return EXIT_SUCCESS;
 130 }