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 27 28 29 #include <stdlib.h> 30 #include <stdio.h> 31 #include <unistd.h> 32 #include <sys/types.h> 33 #include <sys/stat.h> 34 #include <fcntl.h> 35 #include <errno.h> 36 #include <string.h> 37 #include <stdarg.h> 38 #include <syslog.h> 39 #include <libdevice.h> 40 #include <sys/fibre-channel/fcio.h> 41 #include "common.h" 42 43 static int parse_line(char *line, char *path, char *wwn, char *filename); 44 static int create_ap_instance(char *ap_id, char *wwn_string, 45 char *filename, char *line); 46 static void log_error(char *msg_id, char *input_tmplt, ...); 47 static char ctoi(char c); 48 49 /* 50 * Simple wrapper for syslog error messages. 51 * Allows easy addition of syserr output if desired. 52 */ 53 static void 54 log_error(char *msg_id, char *input_tmplt, ...) 55 { 56 va_list ap; 57 char input_merged_msg[200]; 58 char *msg_template = "ID[luxadm.create_fabric_device.%s] %s"; 59 /* 60 * First %s for msg_id in merged msg. 61 * Second %s is for input merged_msg 62 */ 63 char *merged_msg; 64 65 va_start(ap, input_tmplt); 66 /* insert caller's args */ 67 (void) vsprintf(input_merged_msg, input_tmplt, ap); 68 va_end(ap); 69 70 merged_msg = (char *)malloc(strlen(msg_template) + 71 strlen(input_merged_msg) + 72 strlen(msg_id) + 1); 73 if (merged_msg == NULL) { 74 syslog(LOG_ERR, "ID[luxadm.create_fabric_device.2317] " 75 "malloc failure, %s", strerror(errno)); 76 } else { 77 sprintf(merged_msg, msg_template, msg_id, input_merged_msg); 78 /* first insert msg_id */ 79 syslog(LOG_ERR, merged_msg, ""); 80 (void) puts(merged_msg); /* also print message */ 81 free(merged_msg); 82 } 83 } 84 85 /* 86 * Routines for reading tapestry repository file 87 */ 88 89 #define COMMENT_CHAR '#' 90 int 91 read_repos_file(char *repos_filename) 92 { 93 int fd; 94 char *line; 95 char *tmp_ptr, *mmap_ptr; 96 char path[MAXPATHLEN]; 97 int ret; 98 char wwn[FC_WWN_SIZE*2+1]; 99 struct stat stbuf; 100 unsigned int filesize; 101 unsigned int bytes_read; 102 103 if (repos_filename == NULL || *repos_filename == '\0') { 104 log_error("2310", 105 "filename missing for -f option of " 106 "luxadm -e create_fabric_device"); 107 return (-1); 108 } 109 110 fd = open(repos_filename, O_RDONLY); 111 112 if (fd == -1) { 113 log_error("2311", 114 "fopen failed: cannot open repository file %s. %d", 115 repos_filename, strerror(errno)); 116 return (-1); 117 } 118 119 if (fstat(fd, &stbuf) == -1) { 120 close(fd); 121 log_error("2312", "stat failed on file %s. %s", 122 repos_filename, strerror(errno)); 123 return (-1); 124 } 125 filesize = stbuf.st_size; 126 tmp_ptr = mmap_ptr = mmap((caddr_t)0, filesize, 127 (PROT_READ | PROT_WRITE), MAP_PRIVATE, fd, 0); 128 129 if (mmap_ptr == MAP_FAILED) { 130 log_error("2315", "Failed to mmap file %s. %s", 131 repos_filename, strerror(errno)); 132 return (-1); 133 } 134 135 bytes_read = 0; 136 while (bytes_read < filesize) { 137 line = tmp_ptr; 138 while (bytes_read < filesize && *tmp_ptr != '\n') { 139 bytes_read++; 140 tmp_ptr++; 141 } 142 if (*tmp_ptr == '\n') { 143 *tmp_ptr = '\0'; 144 tmp_ptr++; 145 bytes_read++; 146 } 147 148 /* If the line is a comment, read another line */ 149 if (*line == COMMENT_CHAR) { 150 continue; 151 } 152 ret = parse_line(line, path, wwn, repos_filename); 153 if (ret == 0) { 154 ret = create_ap_instance(path, 155 wwn, repos_filename, line); 156 } 157 } 158 159 ret = close(fd); 160 ret = munmap(mmap_ptr, filesize); 161 return (ret); 162 } 163 164 /* 165 * Input is paramater 1 - a line from repository 166 * Output is other parameters, the path to the attachment point, 167 * and the port wwn are parsed from the repository 168 * Format is 169 * "/devices/pci..../fp@1,0:fc::wwn" 170 * If controller name is missing, that's okay. Other fields 171 * must be present 172 * 173 * Return 0 on success or -1 on failure; all failures logged to syslog. 174 */ 175 #define WWN_DELIM "::" 176 static int 177 parse_line(char *line, char *path, char *wwn, char *filename) 178 { 179 char *p_path, *p_wwn, *p_delim; 180 char *line_copy; 181 182 line_copy = strdup(line); 183 if (line_copy == NULL) { 184 log_error("2317", "malloc failure, %s", strerror(errno)); 185 } 186 p_path = line_copy; 187 p_delim = strstr(p_path, WWN_DELIM); 188 if (p_delim == NULL) { 189 log_error("2313", 190 "Invalid line (%s) in file %s.", line, filename); 191 free(line_copy); 192 return (-1); 193 } 194 *p_delim = '\0'; /* NULL terminate path */ 195 196 if (strlcpy(path, p_path, MAXPATHLEN) >= MAXPATHLEN) { 197 log_error("2318", 198 "Path too long (%s) in file %s.", p_path, filename); 199 free(line_copy); 200 return (-1); 201 } 202 203 p_wwn = p_delim + strlen(WWN_DELIM); 204 /* 205 * Now look for the blank delimiter before the controller 206 * 207 * This is just the case when there may be a controller # 208 * after the attachment point and WWN. For example - 209 * /devices/pci@b,2000/pci@2/SUNW,qlc@4/fp@0,0:fc::220000203707f4f1 c4 210 */ 211 p_delim = strchr(p_wwn, ' '); 212 if (p_delim != NULL) { 213 /* now p_delim points to blank */ 214 *p_delim = '\0'; /* terminate wwn at delim */ 215 } else { 216 char *p_last_char; 217 p_last_char = p_wwn+strlen(p_wwn)-1; 218 if (*p_last_char == '\n') { 219 *p_last_char = '\0'; 220 } 221 } 222 strcpy(wwn, p_wwn); 223 free(line_copy); 224 return (0); 225 } 226 227 static char 228 ctoi(char c) 229 { 230 if ((c >= '0') && (c <= '9')) 231 c -= '0'; 232 else if ((c >= 'A') && (c <= 'F')) 233 c = c - 'A' + 10; 234 else if ((c >= 'a') && (c <= 'f')) 235 c = c - 'a' + 10; 236 else 237 c = -1; 238 return (c); 239 } 240 241 /* 242 * "string" is Input and "port_wwn" has the output 243 * 244 * This function converts a string to WWN. 245 * For example a string like 246 * "220000203707F4F1" gets converted to 0x220000203707F4F1 ... 247 * where 248 * port_wwn[0] = 0x22, 249 * port_wwn[1] = 0x00, 250 * port_wwn[2] = 0x00, 251 * port_wwn[3] = 0x20, 252 * port_wwn[4] = 0x37, 253 * port_wwn[5] = 0x07, 254 * port_wwn[6] = 0xF4, and 255 * port_wwn[7] = 0xF1 256 */ 257 static int 258 string_to_wwn(const uchar_t *string, uchar_t *port_wwn) 259 { 260 int i; 261 char c, c1; 262 uchar_t *wwnp; 263 264 wwnp = port_wwn; 265 for (i = 0; i < WWN_SIZE; i++, wwnp++) { 266 267 c = ctoi(*string++); 268 c1 = ctoi(*string++); 269 if (c == -1 || c1 == -1) 270 return (-1); 271 *wwnp = ((c << 4) + c1); 272 } 273 274 return (0); 275 } 276 277 static int 278 create_ap_instance(char *ap_id, char *wwn_string, 279 char *filename, char *line) 280 { 281 devctl_hdl_t bus_handle, dev_handle; 282 devctl_ddef_t ddef_handle; 283 int ret; 284 uchar_t wwn_array[FC_WWN_SIZE]; 285 286 ddef_handle = devctl_ddef_alloc("dummy", 0); 287 if (ddef_handle == NULL) { 288 log_error("2314", 289 "Internal error to process line (%s) in file: %s. %s", 290 line, filename, strerror(errno)); 291 return (-1); 292 } 293 /* 294 * g_string_to_wwn() has not been used here because it 295 * prepends 2 NULLs. 296 */ 297 if (string_to_wwn((uchar_t *)wwn_string, wwn_array) != 0) { 298 log_error("2314", 299 "Internal error to process line (%s) in file: %s. %s", 300 line, filename, strerror(errno)); 301 devctl_ddef_free(ddef_handle); 302 return (-1); 303 } 304 (void) devctl_ddef_byte_array(ddef_handle, 305 "port-wwn", FC_WWN_SIZE, wwn_array); 306 307 if ((bus_handle = devctl_bus_acquire(ap_id, 0)) == NULL) { 308 devctl_ddef_free(ddef_handle); 309 log_error("2314", 310 "Internal error to process line (%s) in file: %s. %s", 311 line, filename, strerror(errno)); 312 return (-1); 313 } 314 if (ret = 315 devctl_bus_dev_create(bus_handle, ddef_handle, 0, &dev_handle)) { 316 devctl_ddef_free(ddef_handle); 317 devctl_release(bus_handle); 318 log_error("2316", 319 "configuration failed for line (%s) in file: %s. %s", 320 line, filename, strerror(errno)); 321 return (-1); 322 } 323 devctl_release(dev_handle); 324 devctl_ddef_free(ddef_handle); 325 devctl_release(bus_handle); 326 return (ret); 327 } 328