iscontrol.c revision 185289 
1/*-
2 * Copyright (c) 2005-2008 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: head/sbin/iscontrol/iscontrol.c 185289 2008-11-25 07:17:11Z scottl $");
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 <stdlib.h>
48#include <unistd.h>
49#include <stdio.h>
50#include <string.h>
51#include <errno.h>
52#include <fcntl.h>
53#include <time.h>
54#include <camlib.h>
55
56#include "iscsi.h"
57#include "iscontrol.h"
58
59#define USAGE "[-v] [-d] [-c config] [-n name] [-t target] "
60#define OPTIONS	"vdc:t:n:"
61
62#ifndef DEBUG
63//int	vflag;
64#endif
65
66token_t AuthMethods[] = {
67     {"None",	NONE},
68     {"KRB5",	KRB5},
69     {"SPKM1",	SPKM1},
70     {"SPKM2",	SPKM2},
71     {"SRP",	SRP},
72     {"CHAP",	CHAP},
73     {0}
74};
75
76token_t	DigestMethods[] = {
77     {"None",	0},
78     {"CRC32",	1},
79     {"CRC32C",	1},
80     {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
116int
117lookup(token_t *tbl, char *m)
118{
119     token_t	*tp;
120
121     for(tp = tbl; tp->name != NULL; tp++)
122	  if(strcasecmp(tp->name, m) == 0)
123	       return tp->val;
124     return 0;
125}
126
127int
128main(int cc, char **vv)
129{
130     int	ch, disco;
131     char	*pname, *p, *q, *ta, *kw;
132     isc_opt_t	*op;
133     FILE	*fd;
134
135     op = &opvals;
136     iscsidev = "/dev/"ISCSIDEV;
137     fd = NULL;
138     pname = vv[0];
139     if((p = strrchr(pname, '/')) != NULL)
140	  pname = p + 1;
141
142     kw = ta = 0;
143     disco = 0;
144
145     while((ch = getopt(cc, vv, OPTIONS)) != -1) {
146	  switch(ch) {
147	  case 'v':
148	       vflag++;
149	       break;
150	  case 'c':
151	       fd = fopen(optarg, "r");
152	       if(fd == NULL) {
153		    perror(optarg);
154		    exit(1);
155	       }
156	       break;
157	  case 'd':
158	       disco = 1;
159	       break;
160	  case 't':
161	       ta = optarg;
162	       break;
163	  case 'n':
164	       kw = optarg;
165	       break;
166	  default:
167	  badu:
168	       fprintf(stderr, "Usage: %s %s\n", pname, USAGE);
169	       exit(1);
170	  }
171     }
172     if(fd == NULL)
173	  fd = fopen("/etc/iscsi.conf", "r");
174
175     if(fd != NULL) {
176	  parseConfig(fd, kw, op);
177	  fclose(fd);
178     }
179     cc -= optind;
180     vv += optind;
181     if(cc > 0) {
182	  if(vflag)
183	       printf("adding '%s'\n", *vv);
184	  parseArgs(cc, vv, op);
185     }
186     if(ta)
187	  op->targetAddress = ta;
188
189     if(op->targetAddress == NULL) {
190	  fprintf(stderr, "No target!\n");
191	  goto badu;
192     }
193     q = op->targetAddress;
194     if(*q == '[' && (q = strchr(q, ']')) != NULL) {
195	  *q++ = '\0';
196	  op->targetAddress++;
197     } else
198	  q = op->targetAddress;
199     if((p = strchr(q, ':')) != NULL) {
200	  *p++ = 0;
201	  op->port = atoi(p);
202	  p = strchr(p, ',');
203     }
204     if(p || ((p = strchr(q, ',')) != NULL)) {
205	  *p++ = 0;
206	  op->targetPortalGroupTag = atoi(p);
207     }
208     if(op->initiatorName == 0) {
209	  char	hostname[256];
210
211	  if(op->iqn) {
212	       if(gethostname(hostname, sizeof(hostname)) == 0)
213		    asprintf(&op->initiatorName, "%s:%s", op->iqn, hostname);
214	       else
215		    asprintf(&op->initiatorName, "%s:%d", op->iqn, (int)time(0) & 0xff); // XXX:
216	  }
217	  else {
218	       if(gethostname(hostname, sizeof(hostname)) == 0)
219		    asprintf(&op->initiatorName, "%s", hostname);
220	       else
221		    asprintf(&op->initiatorName, "%d", (int)time(0) & 0xff); // XXX:
222	  }
223     }
224     if(disco) {
225	  op->sessionType = "Discovery";
226	  op->targetName = 0;
227     }
228
229     fsm(op);
230
231     exit(0);
232}
233