/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2005-2010 Daniel Braniss <danny@cs.huji.ac.il>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
/*
| $Id: iscontrol.c,v 2.2 2006/12/01 09:11:56 danny Exp danny $
*/
/*
| the user level initiator (client)
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/sysctl.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <arpa/inet.h>
#include <sys/ioctl.h>
#include <netdb.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <libgen.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <camlib.h>
#include <dev/iscsi_initiator/iscsi.h>
#include "iscontrol.h"
static char version[] = "2.3.1"; // keep in sync with iscsi_initiator
#define USAGE "[-v] [-d] [-c config] [-n name] [-t target] [-p pidfile]"
#define OPTIONS "vdc:t:n:p:"
token_t AuthMethods[] = {
{"None", NONE},
{"KRB5", KRB5},
{"SPKM1", SPKM1},
{"SPKM2", SPKM2},
{"SRP", SRP},
{"CHAP", CHAP},
{0, 0}
};
token_t DigestMethods[] = {
{"None", 0},
{"CRC32", 1},
{"CRC32C", 1},
{0, 0}
};
int vflag;
char *iscsidev;
u_char isid[6 + 6];
/*
| Default values
*/
isc_opt_t opvals = {
.port = 3260,
.sockbufsize = 128,
.iqn = "iqn.2005-01.il.ac.huji.cs:",
.sessionType = "Normal",
.targetAddress = 0,
.targetName = 0,
.initiatorName = 0,
.authMethod = "None",
.headerDigest = "None,CRC32C",
.dataDigest = "None,CRC32C",
.maxConnections = 1,
.maxRecvDataSegmentLength = 64 * 1024,
.maxXmitDataSegmentLength = 8 * 1024, // 64 * 1024,
.maxBurstLength = 128 * 1024,
.firstBurstLength = 64 * 1024, // must be less than maxBurstLength
.defaultTime2Wait = 0,
.defaultTime2Retain = 0,
.maxOutstandingR2T = 1,
.errorRecoveryLevel = 0,
.dataPDUInOrder = TRUE,
.dataSequenceInOrder = TRUE,
.initialR2T = TRUE,
.immediateData = TRUE,
};
static void
usage(const char *pname)
{
fprintf(stderr, "usage: %s " USAGE "\n", pname);
exit(1);
}
int
lookup(token_t *tbl, char *m)
{
token_t *tp;
for(tp = tbl; tp->name != NULL; tp++)
if(strcasecmp(tp->name, m) == 0)
return tp->val;
return 0;
}
int
main(int cc, char **vv)
{
int ch, disco;
char *pname, *pidfile, *p, *q, *ta, *kw, *v;
isc_opt_t *op;
FILE *fd;
size_t n;
op = &opvals;
iscsidev = "/dev/"ISCSIDEV;
fd = NULL;
pname = vv[0];
if ((pname = basename(pname)) == NULL)
err(1, "basename");
kw = ta = 0;
disco = 0;
pidfile = NULL;
/*
| check for driver & controller version match
*/
n = 0;
#define VERSION_OID_S "net.iscsi_initiator.driver_version"
if (sysctlbyname(VERSION_OID_S, 0, &n, 0, 0) != 0) {
if (errno == ENOENT)
errx(1, "sysctlbyname(\"" VERSION_OID_S "\") "
"failed; is the iscsi driver loaded?");
err(1, "sysctlbyname(\"" VERSION_OID_S "\")");
}
v = malloc(n+1);
if (v == NULL)
err(1, "malloc");
if (sysctlbyname(VERSION_OID_S, v, &n, 0, 0) != 0)
err(1, "sysctlbyname");
if (strncmp(version, v, 3) != 0)
errx(1, "versions mismatch");
while((ch = getopt(cc, vv, OPTIONS)) != -1) {
switch(ch) {
case 'v':
vflag++;
break;
case 'c':
fd = fopen(optarg, "r");
if (fd == NULL)
err(1, "fopen(\"%s\")", optarg);
break;
case 'd':
disco = 1;
break;
case 't':
ta = optarg;
break;
case 'n':
kw = optarg;
break;
case 'p':
pidfile = optarg;
break;
default:
usage(pname);
}
}
if(fd == NULL)
fd = fopen("/etc/iscsi.conf", "r");
if(fd != NULL) {
parseConfig(fd, kw, op);
fclose(fd);
}
cc -= optind;
vv += optind;
if(cc > 0) {
if(vflag)
printf("adding '%s'\n", *vv);
parseArgs(cc, vv, op);
}
if(ta)
op->targetAddress = ta;
if(op->targetAddress == NULL) {
warnx("no target specified!");
usage(pname);
}
q = op->targetAddress;
if(*q == '[' && (q = strchr(q, ']')) != NULL) {
*q++ = '\0';
op->targetAddress++;
} else
q = op->targetAddress;
if((p = strchr(q, ':')) != NULL) {
*p++ = 0;
op->port = atoi(p);
p = strchr(p, ',');
}
if(p || ((p = strchr(q, ',')) != NULL)) {
*p++ = 0;
op->targetPortalGroupTag = atoi(p);
}
if(op->initiatorName == 0) {
char hostname[MAXHOSTNAMELEN];
if(op->iqn) {
if(gethostname(hostname, sizeof(hostname)) == 0)
asprintf(&op->initiatorName, "%s:%s", op->iqn, hostname);
else
asprintf(&op->initiatorName, "%s:%d", op->iqn, (int)time(0) & 0xff); // XXX:
}
else {
if(gethostname(hostname, sizeof(hostname)) == 0)
asprintf(&op->initiatorName, "%s", hostname);
else
asprintf(&op->initiatorName, "%d", (int)time(0) & 0xff); // XXX:
}
}
if(disco) {
op->sessionType = "Discovery";
op->targetName = 0;
}
op->pidfile = pidfile;
fsm(op);
exit(0);
}
