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e25c779e MD |
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 | ||
e25c779e MD |
34 | #include <sys/param.h> |
35 | #include <sys/types.h> | |
36 | #include <sys/socket.h> | |
37 | #include <sys/sysctl.h> | |
1cdc323a AH |
38 | #include <sys/module.h> |
39 | #include <sys/linker.h> | |
e25c779e MD |
40 | |
41 | #include <netinet/in.h> | |
42 | #include <netinet/tcp.h> | |
43 | #include <arpa/inet.h> | |
44 | #include <sys/ioctl.h> | |
45 | #include <netdb.h> | |
46 | #include <stdlib.h> | |
47 | #include <unistd.h> | |
48 | #include <stdio.h> | |
49 | #include <string.h> | |
50 | #include <errno.h> | |
51 | #include <fcntl.h> | |
52 | #include <time.h> | |
53 | #include <camlib.h> | |
54 | ||
55 | #include "iscsi.h" | |
56 | #include "iscontrol.h" | |
57 | ||
e53224f8 | 58 | #define USAGE "[-dv] [-c file] [-n nickname] [-t target] [variable=value ...]" |
e25c779e MD |
59 | #define OPTIONS "vdc:t:n:" |
60 | ||
e25c779e MD |
61 | token_t AuthMethods[] = { |
62 | {"None", NONE}, | |
63 | {"KRB5", KRB5}, | |
64 | {"SPKM1", SPKM1}, | |
65 | {"SPKM2", SPKM2}, | |
66 | {"SRP", SRP}, | |
67 | {"CHAP", CHAP}, | |
68 | {0, 0} | |
69 | }; | |
70 | ||
71 | token_t DigestMethods[] = { | |
72 | {"None", 0}, | |
73 | {"CRC32", 1}, | |
74 | {"CRC32C", 1}, | |
75 | {0, 0} | |
76 | }; | |
77 | ||
760270c4 SW |
78 | int vflag; |
79 | char *iscsidev; | |
80 | ||
e25c779e MD |
81 | /* |
82 | | Default values | |
83 | */ | |
d50f9ae3 | 84 | static isc_opt_t opvals = { |
e25c779e MD |
85 | .port = 3260, |
86 | .sockbufsize = 128, | |
87 | .iqn = "iqn.2005-01.il.ac.huji.cs:", | |
88 | ||
89 | .sessionType = "Normal", | |
90 | .targetAddress = 0, | |
91 | .targetName = 0, | |
92 | .initiatorName = 0, | |
93 | .authMethod = "None", | |
94 | .headerDigest = "None,CRC32C", | |
95 | .dataDigest = "None,CRC32C", | |
96 | .maxConnections = 1, | |
97 | .maxRecvDataSegmentLength = 64 * 1024, | |
98 | .maxXmitDataSegmentLength = 8 * 1024, // 64 * 1024, | |
99 | .maxBurstLength = 128 * 1024, | |
100 | .firstBurstLength = 64 * 1024, // must be less than maxBurstLength | |
101 | .defaultTime2Wait = 0, | |
102 | .defaultTime2Retain = 0, | |
103 | .maxOutstandingR2T = 1, | |
104 | .errorRecoveryLevel = 0, | |
105 | ||
ae2af236 SW |
106 | .dataPDUInOrder = true, |
107 | .dataSequenceInOrder = true, | |
e25c779e | 108 | |
ae2af236 SW |
109 | .initialR2T = true, |
110 | .immediateData = true, | |
e25c779e MD |
111 | }; |
112 | ||
113 | int | |
114 | lookup(token_t *tbl, char *m) | |
115 | { | |
116 | token_t *tp; | |
117 | ||
118 | for(tp = tbl; tp->name != NULL; tp++) | |
119 | if(strcasecmp(tp->name, m) == 0) | |
120 | return tp->val; | |
121 | return 0; | |
122 | } | |
123 | ||
124 | int | |
125 | main(int cc, char **vv) | |
126 | { | |
127 | int ch, disco; | |
128 | char *pname, *p, *q, *ta, *kw; | |
129 | isc_opt_t *op; | |
130 | FILE *fd; | |
131 | ||
1cdc323a AH |
132 | /* Try to load iscsi_initiator module before starting its operation */ |
133 | if (modfind(INITIATORMOD) < 0) { | |
134 | if (kldload(INITIATORMOD) < 0 || modfind(INITIATORMOD) < 0) { | |
135 | perror(INITIATORMOD ": Error while handling kernel module"); | |
136 | return 1; | |
137 | } | |
138 | } | |
139 | ||
e25c779e MD |
140 | op = &opvals; |
141 | iscsidev = "/dev/"ISCSIDEV; | |
142 | fd = NULL; | |
143 | pname = vv[0]; | |
144 | if((p = strrchr(pname, '/')) != NULL) | |
145 | pname = p + 1; | |
146 | ||
678e8cc6 | 147 | kw = ta = NULL; |
e25c779e MD |
148 | disco = 0; |
149 | ||
150 | while((ch = getopt(cc, vv, OPTIONS)) != -1) { | |
151 | switch(ch) { | |
152 | case 'v': | |
153 | vflag++; | |
154 | break; | |
155 | case 'c': | |
156 | fd = fopen(optarg, "r"); | |
157 | if(fd == NULL) { | |
158 | perror(optarg); | |
159 | exit(1); | |
160 | } | |
161 | break; | |
162 | case 'd': | |
163 | disco = 1; | |
164 | break; | |
165 | case 't': | |
166 | ta = optarg; | |
167 | break; | |
168 | case 'n': | |
169 | kw = optarg; | |
170 | break; | |
171 | default: | |
172 | badu: | |
173 | fprintf(stderr, "Usage: %s %s\n", pname, USAGE); | |
174 | exit(1); | |
175 | } | |
176 | } | |
177 | if(fd == NULL) | |
178 | fd = fopen("/etc/iscsi.conf", "r"); | |
179 | ||
180 | if(fd != NULL) { | |
181 | parseConfig(fd, kw, op); | |
182 | fclose(fd); | |
183 | } | |
184 | cc -= optind; | |
185 | vv += optind; | |
186 | if(cc > 0) { | |
187 | if(vflag) | |
188 | printf("adding '%s'\n", *vv); | |
189 | parseArgs(cc, vv, op); | |
190 | } | |
191 | if(ta) | |
192 | op->targetAddress = ta; | |
193 | ||
194 | if(op->targetAddress == NULL) { | |
195 | fprintf(stderr, "No target!\n"); | |
196 | goto badu; | |
197 | } | |
198 | q = op->targetAddress; | |
199 | if(*q == '[' && (q = strchr(q, ']')) != NULL) { | |
200 | *q++ = '\0'; | |
201 | op->targetAddress++; | |
202 | } else | |
203 | q = op->targetAddress; | |
204 | if((p = strchr(q, ':')) != NULL) { | |
205 | *p++ = 0; | |
206 | op->port = atoi(p); | |
207 | p = strchr(p, ','); | |
208 | } | |
209 | if(p || ((p = strchr(q, ',')) != NULL)) { | |
210 | *p++ = 0; | |
211 | op->targetPortalGroupTag = atoi(p); | |
212 | } | |
213 | if(op->initiatorName == 0) { | |
214 | char hostname[256]; | |
215 | ||
216 | if(op->iqn) { | |
217 | if(gethostname(hostname, sizeof(hostname)) == 0) | |
218 | asprintf(&op->initiatorName, "%s:%s", op->iqn, hostname); | |
219 | else | |
220 | asprintf(&op->initiatorName, "%s:%d", op->iqn, (int)time(0) & 0xff); // XXX: | |
221 | } | |
222 | else { | |
223 | if(gethostname(hostname, sizeof(hostname)) == 0) | |
224 | asprintf(&op->initiatorName, "%s", hostname); | |
225 | else | |
226 | asprintf(&op->initiatorName, "%d", (int)time(0) & 0xff); // XXX: | |
227 | } | |
228 | } | |
229 | if(disco) { | |
230 | op->sessionType = "Discovery"; | |
231 | op->targetName = 0; | |
232 | } | |
233 | ||
234 | fsm(op); | |
235 | ||
236 | exit(0); | |
237 | } |