iscontrol.c revision 234233 
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: head/sbin/iscontrol/iscontrol.c 234233 2012-04-13 18:21:56Z jpaetzel $");
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 <dev/iscsi/initiator/iscsi.h>
57#include "iscontrol.h"
58
59static char version[] = "2.3.1"; // keep in sync with iscsi_initiator
60
61#define USAGE "[-v] [-d] [-c config] [-n name] [-t target] [-p pidfile]"
62#define OPTIONS	"vdc:t:n:p:"
63
64token_t AuthMethods[] = {
65     {"None",	NONE},
66     {"KRB5",	KRB5},
67     {"SPKM1",	SPKM1},
68     {"SPKM2",	SPKM2},
69     {"SRP",	SRP},
70     {"CHAP",	CHAP},
71     {0, 0}
72};
73
74token_t	DigestMethods[] = {
75     {"None",	0},
76     {"CRC32",	1},
77     {"CRC32C",	1},
78     {0, 0}
79};
80
81u_char	isid[6 + 6];
82/*
83 | Default values
84 */
85isc_opt_t opvals = {
86     .port			= 3260,
87     .sockbufsize		= 128,
88     .iqn			= "iqn.2005-01.il.ac.huji.cs:",
89
90     .sessionType		= "Normal",
91     .targetAddress		= 0,
92     .targetName		= 0,
93     .initiatorName		= 0,
94     .authMethod		= "None",
95     .headerDigest		= "None,CRC32C",
96     .dataDigest		= "None,CRC32C",
97     .maxConnections		= 1,
98     .maxRecvDataSegmentLength	= 64 * 1024,
99     .maxXmitDataSegmentLength	= 8 * 1024, // 64 * 1024,
100     .maxBurstLength		= 128 * 1024,
101     .firstBurstLength		= 64 * 1024, // must be less than maxBurstLength
102     .defaultTime2Wait		= 0,
103     .defaultTime2Retain	= 0,
104     .maxOutstandingR2T		= 1,
105     .errorRecoveryLevel	= 0,
106
107     .dataPDUInOrder		= TRUE,
108     .dataSequenceInOrder	= TRUE,
109
110     .initialR2T		= TRUE,
111     .immediateData		= TRUE,
112};
113
114int
115lookup(token_t *tbl, char *m)
116{
117     token_t	*tp;
118
119     for(tp = tbl; tp->name != NULL; tp++)
120	  if(strcasecmp(tp->name, m) == 0)
121	       return tp->val;
122     return 0;
123}
124
125int
126main(int cc, char **vv)
127{
128     int	ch, disco;
129     char	*pname, *pidfile, *p, *q, *ta, *kw, *v;
130     isc_opt_t	*op;
131     FILE	*fd;
132     size_t	n;
133
134     op = &opvals;
135     iscsidev = "/dev/"ISCSIDEV;
136     fd = NULL;
137     pname = vv[0];
138     if((p = strrchr(pname, '/')) != NULL)
139	  pname = p + 1;
140
141     kw = ta = 0;
142     disco = 0;
143     pidfile = NULL;
144     /*
145      | check for driver & controller version match
146      */
147     n = 0;
148     if(sysctlbyname("net.iscsi_initiator.driver_version", 0, &n, 0, 0) != 0)
149	  perror("sysctlbyname");
150     v = malloc(n+1);
151     if(sysctlbyname("net.iscsi_initiator.driver_version", v, &n, 0, 0) != 0)
152	  perror("sysctlbyname");
153
154     if(strncmp(version, v, 3)) {
155	  fprintf(stderr, "versions missmatch\n");
156	  exit(1);
157     }
158
159
160     while((ch = getopt(cc, vv, OPTIONS)) != -1) {
161	  switch(ch) {
162	  case 'v':
163	       vflag++;
164	       break;
165	  case 'c':
166	       fd = fopen(optarg, "r");
167	       if(fd == NULL) {
168		    perror(optarg);
169		    exit(1);
170	       }
171	       break;
172	  case 'd':
173	       disco = 1;
174	       break;
175	  case 't':
176	       ta = optarg;
177	       break;
178	  case 'n':
179	       kw = optarg;
180	       break;
181	  case 'p':
182	       pidfile = optarg;
183	       break;
184	  default:
185	  badu:
186	       fprintf(stderr, "Usage: %s %s\n", pname, USAGE);
187	       exit(1);
188	  }
189     }
190     if(fd == NULL)
191	  fd = fopen("/etc/iscsi.conf", "r");
192
193     if(fd != NULL) {
194	  parseConfig(fd, kw, op);
195	  fclose(fd);
196     }
197     cc -= optind;
198     vv += optind;
199     if(cc > 0) {
200	  if(vflag)
201	       printf("adding '%s'\n", *vv);
202	  parseArgs(cc, vv, op);
203     }
204     if(ta)
205	  op->targetAddress = ta;
206
207     if(op->targetAddress == NULL) {
208	  fprintf(stderr, "No target!\n");
209	  goto badu;
210     }
211     q = op->targetAddress;
212     if(*q == '[' && (q = strchr(q, ']')) != NULL) {
213	  *q++ = '\0';
214	  op->targetAddress++;
215     } else
216	  q = op->targetAddress;
217     if((p = strchr(q, ':')) != NULL) {
218	  *p++ = 0;
219	  op->port = atoi(p);
220	  p = strchr(p, ',');
221     }
222     if(p || ((p = strchr(q, ',')) != NULL)) {
223	  *p++ = 0;
224	  op->targetPortalGroupTag = atoi(p);
225     }
226     if(op->initiatorName == 0) {
227	  char	hostname[256];
228
229	  if(op->iqn) {
230	       if(gethostname(hostname, sizeof(hostname)) == 0)
231		    asprintf(&op->initiatorName, "%s:%s", op->iqn, hostname);
232	       else
233		    asprintf(&op->initiatorName, "%s:%d", op->iqn, (int)time(0) & 0xff); // XXX:
234	  }
235	  else {
236	       if(gethostname(hostname, sizeof(hostname)) == 0)
237		    asprintf(&op->initiatorName, "%s", hostname);
238	       else
239		    asprintf(&op->initiatorName, "%d", (int)time(0) & 0xff); // XXX:
240	  }
241     }
242     if(disco) {
243	  op->sessionType = "Discovery";
244	  op->targetName = 0;
245     }
246     op->pidfile = pidfile;
247     fsm(op);
248
249     exit(0);
250}
251