1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #include <stdlib.h> 27 #include <stdio.h> 28 #include <strings.h> 29 #include <sys/types.h> 30 #include <unistd.h> 31 #include <stropts.h> 32 #include <libintl.h> 33 #include <errno.h> 34 #include <time.h> 35 #include <string.h> 36 #include <assert.h> 37 #include <getopt.h> 38 #include <cmdparse.h> 39 #include <signal.h> 40 #include <pthread.h> 41 #include <fcntl.h> 42 #include <locale.h> 43 #include <sys/systeminfo.h> 44 45 #include <libiscsit.h> 46 #include <sys/iscsit/iscsit_common.h> 47 48 static int it_enable(int, char **, cmdOptions_t *, void *); 49 static int it_disable(int, char **, cmdOptions_t *, void *); 50 51 /* 52 * MAJOR - This should only change when there is an incompatible change made 53 * to the interfaces or the output. 54 * 55 * MINOR - This should change whenever there is a new command or new feature 56 * with no incompatible change. 57 */ 58 #define VERSION_STRING_MAJOR "1" 59 #define VERSION_STRING_MINOR "0" 60 #define VERSION_STRING_MAX_LEN 10 61 62 /* 10 ms sleep in nanoseconds */ 63 #define TEN_MS_NANOSLEEP 10000000 64 65 /* tables set up based on cmdparse instructions */ 66 67 /* add new options here */ 68 optionTbl_t longOptions[] = { 69 {NULL, 0, 0, 0} 70 }; 71 72 /* 73 * Add new subcommands here 74 */ 75 subCommandProps_t subcommands[] = { 76 {"start", it_enable, NULL, NULL, NULL, OPERAND_NONE, NULL}, 77 {"stop", it_disable, NULL, NULL, NULL, OPERAND_NONE, NULL}, 78 {NULL, 0, NULL, NULL, 0, 0, 0, NULL} 79 }; 80 81 /* globals */ 82 char *cmdName; 83 84 /* 85 * Opens the iSCSI Target Node 86 * 87 * fd - Return the iscsit file descriptor 88 */ 89 static int 90 it_open(int *fd) 91 { 92 93 int ret = ITADM_SUCCESS; 94 95 *fd = open(ISCSIT_NODE, O_RDONLY); 96 if (*fd < 0) { 97 if (errno == EPERM) { 98 (void) fprintf(stdout, "open failed: EPERM"); 99 ret = ITADM_PERM; 100 } else { 101 (void) fprintf(stdout, "open failed: INVALID"); 102 ret = ITADM_INVALID; 103 } 104 } 105 106 return (ret); 107 } 108 109 /* 110 * Enables the iSCSI Target 111 */ 112 /*ARGSUSED*/ 113 static int 114 it_enable(int operandLen, char *operands[], cmdOptions_t *options, 115 void *args) 116 { 117 int ret; 118 int fd; 119 char buf[256]; 120 uint32_t *buflenp; 121 char *fqhnp; 122 iscsit_hostinfo_t hostinfo; 123 124 (void) fprintf(stdout, "%s: %s\n", cmdName, 125 gettext("Requesting to enable iscsi target")); 126 127 bzero(buf, 256); 128 bzero(hostinfo.fqhn, sizeof (hostinfo.fqhn)); 129 130 /* Open the iscsi target node */ 131 if ((ret = it_open(&fd)) != ITADM_SUCCESS) { 132 (void) fprintf(stdout, "Unable to open device %s", ISCSIT_NODE); 133 return (ret); 134 } 135 136 (void) fprintf(stdout, "it_enable [fd=%d]\n", fd); 137 /* enable the iscsi target */ 138 buflenp = (uint32_t *)((void *)&buf); 139 *buflenp = strlen("target_name") + 1; 140 (void) strncpy(buf + sizeof (uint32_t), "target_name", 141 256 - sizeof (uint32_t)); 142 143 fqhnp = &hostinfo.fqhn[0]; 144 145 ret = sysinfo(SI_HOSTNAME, fqhnp, 256); 146 147 if ((ret != -1) && (ret < sizeof (hostinfo.fqhn))) { 148 fqhnp += ret; 149 hostinfo.length = ret; 150 hostinfo.fqhn[ret-1] = '.'; 151 hostinfo.length += sysinfo(SI_SRPC_DOMAIN, fqhnp, 152 sizeof (hostinfo.fqhn) - ret); 153 } 154 155 (void) fprintf(stdout, "it_enable: fqhn = '%s'\n", hostinfo.fqhn); 156 157 if ((ret = ioctl(fd, ISCSIT_IOC_ENABLE_SVC, &hostinfo)) != 0) { 158 (void) fprintf(stdout, "Unable to issue ioctl: %d", errno); 159 return (ret); 160 } 161 return (ITADM_SUCCESS); 162 } 163 164 165 /* 166 * Disable the iSCSI target 167 */ 168 /* ARGSUSED */ 169 static int 170 it_disable(int operandLen, char *operands[], cmdOptions_t *options, 171 void *args) 172 { 173 int ret; 174 int fd; 175 176 (void) fprintf(stdout, "%s: %s\n", cmdName, 177 gettext("Requesting to disable iscsi target")); 178 179 /* Open the iscsi target node */ 180 if ((ret = it_open(&fd)) != ITADM_SUCCESS) { 181 return (ret); 182 } 183 184 /* disable the iSCSI target */ 185 if ((ret = ioctl(fd, ISCSIT_IOC_DISABLE_SVC, NULL)) != 0) { 186 return (ret); 187 } 188 return (ITADM_SUCCESS); 189 } 190 191 /* 192 * input: 193 * execFullName - exec name of program (argv[0]) 194 * 195 * copied from usr/src/cmd/zoneadm/zoneadm.c in OS/Net 196 * (changed name to lowerCamelCase to keep consistent with this file) 197 * 198 * Returns: 199 * command name portion of execFullName 200 */ 201 static char * 202 getExecBasename(char *execFullname) 203 { 204 char *lastSlash, *execBasename; 205 206 /* guard against '/' at end of command invocation */ 207 for (;;) { 208 lastSlash = strrchr(execFullname, '/'); 209 if (lastSlash == NULL) { 210 execBasename = execFullname; 211 break; 212 } else { 213 execBasename = lastSlash + 1; 214 if (*execBasename == '\0') { 215 *lastSlash = '\0'; 216 continue; 217 } 218 break; 219 } 220 } 221 return (execBasename); 222 } 223 224 int 225 main(int argc, char *argv[]) 226 { 227 synTables_t synTables; 228 char versionString[VERSION_STRING_MAX_LEN]; 229 int ret; 230 int funcRet; 231 void *subcommandArgs = NULL; 232 233 (void) setlocale(LC_ALL, ""); 234 /* set global command name */ 235 cmdName = getExecBasename(argv[0]); 236 237 (void) snprintf(versionString, VERSION_STRING_MAX_LEN, "%s.%s", 238 VERSION_STRING_MAJOR, VERSION_STRING_MINOR); 239 synTables.versionString = versionString; 240 synTables.longOptionTbl = &longOptions[0]; 241 synTables.subCommandPropsTbl = &subcommands[0]; 242 243 ret = cmdParse(argc, argv, synTables, subcommandArgs, &funcRet); 244 if (ret != 0) { 245 return (ret); 246 } 247 248 return (funcRet); 249 } /* end main */ 250