1/*- 2 * Copyright (c) 2005-2010 Daniel Braniss <danny@cs.huji.ac.il> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 */ 27/* 28 | $Id: iscontrol.c,v 2.2 2006/12/01 09:11:56 danny Exp danny $ 29 */ 30/* 31 | the user level initiator (client) 32 */ 33 34#include <sys/cdefs.h> 35__FBSDID("$FreeBSD$"); 36 37#include <sys/param.h> 38#include <sys/types.h> 39#include <sys/socket.h> 40#include <sys/sysctl.h> 41 42#include <netinet/in.h> 43#include <netinet/tcp.h> 44#include <arpa/inet.h> 45#include <sys/ioctl.h> 46#include <netdb.h> 47#include <err.h> 48#include <errno.h> 49#include <fcntl.h> 50#include <libgen.h> 51#include <stdio.h> 52#include <stdlib.h> 53#include <string.h> 54#include <time.h> 55#include <unistd.h> 56#include <camlib.h> 57 58#include <dev/iscsi/initiator/iscsi.h> 59#include "iscontrol.h" 60 61static char version[] = "2.3.1"; // keep in sync with iscsi_initiator 62 63#define USAGE "[-v] [-d] [-c config] [-n name] [-t target] [-p pidfile]" 64#define OPTIONS "vdc:t:n:p:" 65 66token_t AuthMethods[] = { 67 {"None", NONE}, 68 {"KRB5", KRB5}, 69 {"SPKM1", SPKM1}, 70 {"SPKM2", SPKM2}, 71 {"SRP", SRP}, 72 {"CHAP", CHAP}, 73 {0, 0} 74}; 75 76token_t DigestMethods[] = { 77 {"None", 0}, 78 {"CRC32", 1}, 79 {"CRC32C", 1}, 80 {0, 0} 81}; 82 83u_char isid[6 + 6]; 84/* 85 | Default values 86 */ 87isc_opt_t opvals = { 88 .port = 3260, 89 .sockbufsize = 128, 90 .iqn = "iqn.2005-01.il.ac.huji.cs:", 91 92 .sessionType = "Normal", 93 .targetAddress = 0, 94 .targetName = 0, 95 .initiatorName = 0, 96 .authMethod = "None", 97 .headerDigest = "None,CRC32C", 98 .dataDigest = "None,CRC32C", 99 .maxConnections = 1, 100 .maxRecvDataSegmentLength = 64 * 1024, 101 .maxXmitDataSegmentLength = 8 * 1024, // 64 * 1024, 102 .maxBurstLength = 128 * 1024, 103 .firstBurstLength = 64 * 1024, // must be less than maxBurstLength 104 .defaultTime2Wait = 0, 105 .defaultTime2Retain = 0, 106 .maxOutstandingR2T = 1, 107 .errorRecoveryLevel = 0, 108 109 .dataPDUInOrder = TRUE, 110 .dataSequenceInOrder = TRUE, 111 112 .initialR2T = TRUE, 113 .immediateData = TRUE, 114}; 115 116static void 117usage(const char *pname) 118{ 119 fprintf(stderr, "usage: %s " USAGE "\n", pname); 120 exit(1); 121} 122 123int 124lookup(token_t *tbl, char *m) 125{ 126 token_t *tp; 127 128 for(tp = tbl; tp->name != NULL; tp++) 129 if(strcasecmp(tp->name, m) == 0) 130 return tp->val; 131 return 0; 132} 133 134int 135main(int cc, char **vv) 136{ 137 int ch, disco; 138 char *pname, *pidfile, *p, *q, *ta, *kw, *v; 139 isc_opt_t *op; 140 FILE *fd; 141 size_t n; 142 143 op = &opvals; 144 iscsidev = "/dev/"ISCSIDEV; 145 fd = NULL; 146 pname = vv[0]; 147 if ((pname = basename(pname)) == NULL) 148 err(1, "basename"); 149 150 kw = ta = 0; 151 disco = 0; 152 pidfile = NULL; 153 /* 154 | check for driver & controller version match 155 */ 156 n = 0; 157#define VERSION_OID_S "net.iscsi_initiator.driver_version" 158 if (sysctlbyname(VERSION_OID_S, 0, &n, 0, 0) != 0) { 159 if (errno == ENOENT) 160 errx(1, "sysctlbyname(\"" VERSION_OID_S "\") " 161 "failed; is the iscsi driver loaded?"); 162 err(1, "sysctlbyname(\"" VERSION_OID_S "\")"); 163 } 164 v = malloc(n+1); 165 if (v == NULL) 166 err(1, "malloc"); 167 if (sysctlbyname(VERSION_OID_S, v, &n, 0, 0) != 0) 168 err(1, "sysctlbyname"); 169 170 if (strncmp(version, v, 3) != 0) 171 errx(1, "versions mismatch"); 172 173 while((ch = getopt(cc, vv, OPTIONS)) != -1) { 174 switch(ch) { 175 case 'v': 176 vflag++; 177 break; 178 case 'c': 179 fd = fopen(optarg, "r"); 180 if (fd == NULL) 181 err(1, "fopen(\"%s\")", optarg); 182 break; 183 case 'd': 184 disco = 1; 185 break; 186 case 't': 187 ta = optarg; 188 break; 189 case 'n': 190 kw = optarg; 191 break; 192 case 'p': 193 pidfile = optarg; 194 break; 195 default: 196 usage(pname); 197 } 198 } 199 if(fd == NULL) 200 fd = fopen("/etc/iscsi.conf", "r"); 201 202 if(fd != NULL) { 203 parseConfig(fd, kw, op); 204 fclose(fd); 205 } 206 cc -= optind; 207 vv += optind; 208 if(cc > 0) { 209 if(vflag) 210 printf("adding '%s'\n", *vv); 211 parseArgs(cc, vv, op); 212 } 213 if(ta) 214 op->targetAddress = ta; 215 216 if(op->targetAddress == NULL) { 217 warnx("no target specified!"); 218 usage(pname); 219 } 220 q = op->targetAddress; 221 if(*q == '[' && (q = strchr(q, ']')) != NULL) { 222 *q++ = '\0'; 223 op->targetAddress++; 224 } else 225 q = op->targetAddress; 226 if((p = strchr(q, ':')) != NULL) { 227 *p++ = 0; 228 op->port = atoi(p); 229 p = strchr(p, ','); 230 } 231 if(p || ((p = strchr(q, ',')) != NULL)) { 232 *p++ = 0; 233 op->targetPortalGroupTag = atoi(p); 234 } 235 if(op->initiatorName == 0) { 236 char hostname[MAXHOSTNAMELEN]; 237 238 if(op->iqn) { 239 if(gethostname(hostname, sizeof(hostname)) == 0) 240 asprintf(&op->initiatorName, "%s:%s", op->iqn, hostname); 241 else 242 asprintf(&op->initiatorName, "%s:%d", op->iqn, (int)time(0) & 0xff); // XXX: 243 } 244 else { 245 if(gethostname(hostname, sizeof(hostname)) == 0) 246 asprintf(&op->initiatorName, "%s", hostname); 247 else 248 asprintf(&op->initiatorName, "%d", (int)time(0) & 0xff); // XXX: 249 } 250 } 251 if(disco) { 252 op->sessionType = "Discovery"; 253 op->targetName = 0; 254 } 255 op->pidfile = pidfile; 256 fsm(op); 257 258 exit(0); 259} 260