08b4d87cfe
included man pages on how to use it. This code is still somewhat experimental but has been successfully tested on a number of targets. Many thanks to Danny for contributing this. Approved by: re
377 lines
10 KiB
C
377 lines
10 KiB
C
/*-
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* Copyright (c) 2005-2007 Daniel Braniss <danny@cs.huji.ac.il>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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/*
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| $Id: config.c,v 2.1 2006/11/12 08:06:51 danny Exp danny $
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <stdlib.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <time.h>
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#include <ctype.h>
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#include <camlib.h>
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#include "iscsi.h"
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#include "iscontrol.h"
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/*
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| ints
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*/
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#define OPT_port 1
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#define OPT_tags 2
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#define OPT_maxConnections 3
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#define OPT_maxRecvDataSegmentLength 4
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#define OPT_maxXmitDataSegmentLength 5
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#define OPT_maxBurstLength 6
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#define OPT_firstBurstLength 7
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#define OPT_defaultTime2Wait 8
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#define OPT_defaultTime2Retain 9
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#define OPT_maxOutstandingR2T 10
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#define OPT_errorRecoveryLevel 11
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#define OPT_targetPortalGroupTag 12
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#define OPT_headerDigest 13
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#define OPT_dataDigest 14
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/*
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| Booleans
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*/
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#define OPT_initialR2T 16
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#define OPT_immediateData 17
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#define OPT_dataPDUInOrder 18
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#define OPT_dataSequenceInOrder 19
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/*
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| strings
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*/
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#define OPT_sessionType 15
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#define OPT_targetAddress 21
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#define OPT_targetAlias 22
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#define OPT_targetName 23
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#define OPT_initiatorName 24
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#define OPT_initiatorAlias 25
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#define OPT_authMethod 26
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#define OPT_chapSecret 27
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#define OPT_chapIName 28
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#define OPT_chapDigest 29
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#define OPT_tgtChapName 30
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#define OPT_tgtChapSecret 31
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#define OPT_tgtChallengeLen 32
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/*
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| private
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*/
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#define OPT_maxluns 33
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#define OPT_iqn 34
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#define OPT_sockbufsize 35
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#define _OFF(v) ((int)&((isc_opt_t *)NULL)->v)
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#define _E(u, s, v) {.usage=u, .scope=s, .name=#v, .tokenID=OPT_##v}
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textkey_t keyMap[] = {
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_E(U_PR, S_PR, port),
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_E(U_PR, S_PR, tags),
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_E(U_PR, S_PR, maxluns),
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_E(U_PR, S_PR, sockbufsize),
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_E(U_PR, S_PR, iqn),
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_E(U_PR, S_PR, chapSecret),
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_E(U_PR, S_PR, chapIName),
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_E(U_PR, S_PR, chapDigest),
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_E(U_PR, S_PR, tgtChapName),
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_E(U_PR, S_PR, tgtChapSecret),
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_E(U_PR, S_PR, tgtChallengeLen),
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_E(U_IO, S_CO, headerDigest),
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_E(U_IO, S_CO, dataDigest),
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_E(U_IO, S_CO, authMethod),
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_E(U_LO, S_SW, maxConnections),
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_E(U_IO, S_SW, targetName),
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_E(U_IO, S_SW, initiatorName),
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_E(U_ALL,S_SW, targetAlias),
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_E(U_ALL,S_SW, initiatorAlias),
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_E(U_ALL,S_SW, targetAddress),
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_E(U_ALL,S_SW, targetPortalGroupTag),
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_E(U_LO, S_SW, initialR2T),
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_E(U_LO, S_SW, immediateData),
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_E(U_ALL,S_CO, maxRecvDataSegmentLength),
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_E(U_ALL,S_CO, maxXmitDataSegmentLength),
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_E(U_LO, S_SW, maxBurstLength),
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_E(U_LO, S_SW, firstBurstLength),
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_E(U_LO, S_SW, defaultTime2Wait),
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_E(U_LO, S_SW, defaultTime2Retain),
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_E(U_LO, S_SW, maxOutstandingR2T),
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_E(U_LO, S_SW, dataPDUInOrder),
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_E(U_LO, S_SW, dataSequenceInOrder),
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_E(U_LO, S_SW, errorRecoveryLevel),
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_E(U_LO, S_SW, sessionType),
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{0}
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};
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#define _OPT_INT(w) strtol((char *)w, NULL, 0)
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#define _OPT_STR(w) (char *)(w)
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static __inline int
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_OPT_BOOL(char *w)
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{
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if(isalpha(*w))
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return strcasecmp(w, "TRUE") == 0;
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else
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return _OPT_INT(w);
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}
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#define _CASE(k, v) case OPT_##k: op->k = v; break
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static void
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setOption(isc_opt_t *op, int which, void *rval)
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{
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switch(which) {
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_CASE(port, _OPT_INT(rval));
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_CASE(tags, _OPT_INT(rval));
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_CASE(maxluns, _OPT_INT(rval));
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_CASE(iqn, _OPT_STR(rval));
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_CASE(sockbufsize, _OPT_INT(rval));
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_CASE(maxConnections, _OPT_INT(rval));
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_CASE(maxRecvDataSegmentLength, _OPT_INT(rval));
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_CASE(maxXmitDataSegmentLength, _OPT_INT(rval));
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_CASE(maxBurstLength, _OPT_INT(rval));
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_CASE(firstBurstLength, _OPT_INT(rval));
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_CASE(defaultTime2Wait, _OPT_INT(rval));
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_CASE(defaultTime2Retain, _OPT_INT(rval));
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_CASE(maxOutstandingR2T, _OPT_INT(rval));
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_CASE(errorRecoveryLevel, _OPT_INT(rval));
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_CASE(targetPortalGroupTag, _OPT_INT(rval));
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_CASE(headerDigest, _OPT_STR(rval));
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_CASE(dataDigest, _OPT_STR(rval));
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_CASE(targetAddress, _OPT_STR(rval));
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_CASE(targetAlias, _OPT_STR(rval));
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_CASE(targetName, _OPT_STR(rval));
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_CASE(initiatorName, _OPT_STR(rval));
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_CASE(initiatorAlias, _OPT_STR(rval));
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_CASE(authMethod, _OPT_STR(rval));
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_CASE(chapSecret, _OPT_STR(rval));
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_CASE(chapIName, _OPT_STR(rval));
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_CASE(chapDigest, _OPT_STR(rval));
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_CASE(tgtChapName, _OPT_STR(rval));
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_CASE(tgtChapSecret, _OPT_STR(rval));
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_CASE(initialR2T, _OPT_BOOL(rval));
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_CASE(immediateData, _OPT_BOOL(rval));
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_CASE(dataPDUInOrder, _OPT_BOOL(rval));
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_CASE(dataSequenceInOrder, _OPT_BOOL(rval));
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}
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}
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static char *
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getline(FILE *fd)
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{
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static char *sp, line[BUFSIZ];
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char *lp, *p;
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do {
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if(sp == NULL)
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sp = fgets(line, sizeof line, fd);
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if((lp = sp) == NULL)
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break;
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if((p = strchr(lp, '\n')) != NULL)
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*p = 0;
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if((p = strchr(lp, '#')) != NULL)
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*p = 0;
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if((p = strchr(lp, ';')) != NULL) {
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*p++ = 0;
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sp = p;
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} else
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sp = NULL;
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if(*lp)
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return lp;
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} while (feof(fd) == 0);
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return NULL;
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}
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static int
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getConfig(FILE *fd, char *key, char **Ar, int *nargs)
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{
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char *lp, *p, **ar;
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int state, len, n;
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ar = Ar;
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if(key)
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len = strlen(key);
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else
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len = 0;
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state = 0;
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while((lp = getline(fd)) != NULL) {
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for(; isspace(*lp); lp++)
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;
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switch(state) {
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case 0:
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if((p = strchr(lp, '{')) != NULL) {
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n = 0;
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while((--p > lp) && *p && isspace(*p));
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n = p - lp;
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if(len && strncmp(lp, key, MAX(n, len)) == 0)
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state = 2;
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else
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state = 1;
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continue;
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}
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break;
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case 1:
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if(*lp == '}')
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state = 0;
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continue;
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case 2:
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if(*lp == '}')
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goto done;
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break;
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}
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for(p = &lp[strlen(lp)-1]; isspace(*p); p--)
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*p = 0;
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if((*nargs)-- > 0)
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*ar++ = strdup(lp);
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}
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done:
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if(*nargs > 0)
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*ar = 0;
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*nargs = ar - Ar;
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return ar - Ar;
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}
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static textkey_t *
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keyLookup(char *key)
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{
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textkey_t *tk;
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for(tk = keyMap; tk->name; tk++) {
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if(strcasecmp(key, tk->name) == 0)
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return tk;
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}
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return NULL;
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}
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static void
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puke(isc_opt_t *op)
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{
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printf("%24s = %d\n", "port", op->port);
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printf("%24s = %d\n", "tags", op->tags);
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printf("%24s = %d\n", "maxluns", op->maxluns);
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printf("%24s = %s\n", "iqn", op->iqn);
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printf("%24s = %d\n", "maxConnections", op->maxConnections);
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printf("%24s = %d\n", "maxRecvDataSegmentLength", op->maxRecvDataSegmentLength);
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printf("%24s = %d\n", "maxXmitDataSegmentLength", op->maxRecvDataSegmentLength);
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printf("%24s = %d\n", "maxBurstLength", op->maxBurstLength);
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printf("%24s = %d\n", "firstBurstLength", op->firstBurstLength);
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printf("%24s = %d\n", "defaultTime2Wait", op->defaultTime2Wait);
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printf("%24s = %d\n", "defaultTime2Retain", op->defaultTime2Retain);
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printf("%24s = %d\n", "maxOutstandingR2T", op->maxOutstandingR2T);
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printf("%24s = %d\n", "errorRecoveryLevel", op->errorRecoveryLevel);
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printf("%24s = %d\n", "targetPortalGroupTag", op->targetPortalGroupTag);
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printf("%24s = %s\n", "headerDigest", op->headerDigest);
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printf("%24s = %s\n", "dataDigest", op->dataDigest);
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printf("%24s = %d\n", "initialR2T", op->initialR2T);
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printf("%24s = %d\n", "immediateData", op->immediateData);
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printf("%24s = %d\n", "dataPDUInOrder", op->dataPDUInOrder);
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printf("%24s = %d\n", "dataSequenceInOrder", op->dataSequenceInOrder);
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printf("%24s = %s\n", "sessionType", op->sessionType);
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printf("%24s = %s\n", "targetAddress", op->targetAddress);
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printf("%24s = %s\n", "targetAlias", op->targetAlias);
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printf("%24s = %s\n", "targetName", op->targetName);
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printf("%24s = %s\n", "initiatorName", op->initiatorName);
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printf("%24s = %s\n", "initiatorAlias", op->initiatorAlias);
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printf("%24s = %s\n", "authMethod", op->authMethod);
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printf("%24s = %s\n", "chapSecret", op->chapSecret);
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printf("%24s = %s\n", "chapIName", op->chapIName);
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printf("%24s = %s\n", "tgtChapName", op->tgtChapName);
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printf("%24s = %s\n", "tgtChapSecret", op->tgtChapSecret);
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printf("%24s = %d\n", "tgttgtChallengeLen", op->tgtChallengeLen);
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}
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void
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parseArgs(int nargs, char **args, isc_opt_t *op)
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{
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char **ar;
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char *p, *v;
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textkey_t *tk;
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for(ar = args; nargs > 0; nargs--, ar++) {
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p = strchr(*ar, '=');
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if(p == NULL)
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continue;
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*p = 0;
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v = p + 1;
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while(isspace(*--p))
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*p = 0;
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while(isspace(*v))
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v++;
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if((tk = keyLookup(*ar)) == NULL)
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continue;
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setOption(op, tk->tokenID, v);
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}
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}
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void
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parseConfig(FILE *fd, char *key, isc_opt_t *op)
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{
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char *Ar[256];
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int cc;
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cc = 256;
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if(getConfig(fd, key, Ar, &cc))
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parseArgs(cc, Ar, op);
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if(vflag)
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puke(op);
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}
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