Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1 | /* |
| 2 | * wpa_supplicant/hostapd / Debug prints |
| 3 | * Copyright (c) 2002-2007, Jouni Malinen <j@w1.fi> |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License version 2 as |
| 7 | * published by the Free Software Foundation. |
| 8 | * |
| 9 | * Alternatively, this software may be distributed under the terms of BSD |
| 10 | * license. |
| 11 | * |
| 12 | * See README and COPYING for more details. |
| 13 | */ |
| 14 | |
| 15 | #include "includes.h" |
| 16 | |
| 17 | #include "common.h" |
| 18 | |
| 19 | #ifdef CONFIG_DEBUG_SYSLOG |
| 20 | #include <syslog.h> |
| 21 | |
| 22 | static int wpa_debug_syslog = 0; |
| 23 | #endif /* CONFIG_DEBUG_SYSLOG */ |
| 24 | |
| 25 | |
| 26 | int wpa_debug_level = MSG_INFO; |
| 27 | int wpa_debug_show_keys = 0; |
| 28 | int wpa_debug_timestamp = 0; |
| 29 | |
| 30 | |
| 31 | #ifdef CONFIG_ANDROID_LOG |
| 32 | |
| 33 | #include <android/log.h> |
| 34 | |
Dmitry Shmidt | 648b749 | 2011-09-30 15:03:42 -0700 | [diff] [blame^] | 35 | #ifndef ANDROID_LOG_NAME |
| 36 | #define ANDROID_LOG_NAME "wpa_supplicant" |
| 37 | #endif |
| 38 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 39 | void android_printf(int level, char *format, ...) |
| 40 | { |
| 41 | if (level >= wpa_debug_level) { |
| 42 | va_list ap; |
| 43 | if (level == MSG_ERROR) |
| 44 | level = ANDROID_LOG_ERROR; |
| 45 | else if (level == MSG_WARNING) |
| 46 | level = ANDROID_LOG_WARN; |
| 47 | else if (level == MSG_INFO) |
| 48 | level = ANDROID_LOG_INFO; |
| 49 | else |
| 50 | level = ANDROID_LOG_DEBUG; |
| 51 | va_start(ap, format); |
Dmitry Shmidt | 648b749 | 2011-09-30 15:03:42 -0700 | [diff] [blame^] | 52 | __android_log_vprint(level, ANDROID_LOG_NAME, format, ap); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 53 | va_end(ap); |
| 54 | } |
| 55 | } |
| 56 | |
| 57 | #else /* CONFIG_ANDROID_LOG */ |
| 58 | |
| 59 | #ifndef CONFIG_NO_STDOUT_DEBUG |
| 60 | |
| 61 | #ifdef CONFIG_DEBUG_FILE |
| 62 | static FILE *out_file = NULL; |
| 63 | #endif /* CONFIG_DEBUG_FILE */ |
| 64 | |
| 65 | |
| 66 | void wpa_debug_print_timestamp(void) |
| 67 | { |
| 68 | struct os_time tv; |
| 69 | |
| 70 | if (!wpa_debug_timestamp) |
| 71 | return; |
| 72 | |
| 73 | os_get_time(&tv); |
| 74 | #ifdef CONFIG_DEBUG_FILE |
| 75 | if (out_file) { |
| 76 | fprintf(out_file, "%ld.%06u: ", (long) tv.sec, |
| 77 | (unsigned int) tv.usec); |
| 78 | } else |
| 79 | #endif /* CONFIG_DEBUG_FILE */ |
| 80 | printf("%ld.%06u: ", (long) tv.sec, (unsigned int) tv.usec); |
| 81 | } |
| 82 | |
| 83 | |
| 84 | #ifdef CONFIG_DEBUG_SYSLOG |
| 85 | #ifndef LOG_HOSTAPD |
| 86 | #define LOG_HOSTAPD LOG_DAEMON |
| 87 | #endif /* LOG_HOSTAPD */ |
| 88 | |
| 89 | void wpa_debug_open_syslog(void) |
| 90 | { |
| 91 | openlog("wpa_supplicant", LOG_PID | LOG_NDELAY, LOG_HOSTAPD); |
| 92 | wpa_debug_syslog++; |
| 93 | } |
| 94 | |
| 95 | |
| 96 | void wpa_debug_close_syslog(void) |
| 97 | { |
| 98 | if (wpa_debug_syslog) |
| 99 | closelog(); |
| 100 | } |
| 101 | |
| 102 | |
| 103 | static int syslog_priority(int level) |
| 104 | { |
| 105 | switch (level) { |
| 106 | case MSG_MSGDUMP: |
| 107 | case MSG_DEBUG: |
| 108 | return LOG_DEBUG; |
| 109 | case MSG_INFO: |
| 110 | return LOG_NOTICE; |
| 111 | case MSG_WARNING: |
| 112 | return LOG_WARNING; |
| 113 | case MSG_ERROR: |
| 114 | return LOG_ERR; |
| 115 | } |
| 116 | return LOG_INFO; |
| 117 | } |
| 118 | #endif /* CONFIG_DEBUG_SYSLOG */ |
| 119 | |
| 120 | |
| 121 | /** |
| 122 | * wpa_printf - conditional printf |
| 123 | * @level: priority level (MSG_*) of the message |
| 124 | * @fmt: printf format string, followed by optional arguments |
| 125 | * |
| 126 | * This function is used to print conditional debugging and error messages. The |
| 127 | * output may be directed to stdout, stderr, and/or syslog based on |
| 128 | * configuration. |
| 129 | * |
| 130 | * Note: New line '\n' is added to the end of the text when printing to stdout. |
| 131 | */ |
| 132 | void wpa_printf(int level, const char *fmt, ...) |
| 133 | { |
| 134 | va_list ap; |
| 135 | |
| 136 | va_start(ap, fmt); |
| 137 | if (level >= wpa_debug_level) { |
| 138 | #ifdef CONFIG_DEBUG_SYSLOG |
| 139 | if (wpa_debug_syslog) { |
| 140 | vsyslog(syslog_priority(level), fmt, ap); |
| 141 | } else { |
| 142 | #endif /* CONFIG_DEBUG_SYSLOG */ |
| 143 | wpa_debug_print_timestamp(); |
| 144 | #ifdef CONFIG_DEBUG_FILE |
| 145 | if (out_file) { |
| 146 | vfprintf(out_file, fmt, ap); |
| 147 | fprintf(out_file, "\n"); |
| 148 | } else { |
| 149 | #endif /* CONFIG_DEBUG_FILE */ |
| 150 | vprintf(fmt, ap); |
| 151 | printf("\n"); |
| 152 | #ifdef CONFIG_DEBUG_FILE |
| 153 | } |
| 154 | #endif /* CONFIG_DEBUG_FILE */ |
| 155 | #ifdef CONFIG_DEBUG_SYSLOG |
| 156 | } |
| 157 | #endif /* CONFIG_DEBUG_SYSLOG */ |
| 158 | } |
| 159 | va_end(ap); |
| 160 | } |
| 161 | |
| 162 | |
| 163 | static void _wpa_hexdump(int level, const char *title, const u8 *buf, |
| 164 | size_t len, int show) |
| 165 | { |
| 166 | size_t i; |
| 167 | if (level < wpa_debug_level) |
| 168 | return; |
| 169 | wpa_debug_print_timestamp(); |
| 170 | #ifdef CONFIG_DEBUG_FILE |
| 171 | if (out_file) { |
| 172 | fprintf(out_file, "%s - hexdump(len=%lu):", |
| 173 | title, (unsigned long) len); |
| 174 | if (buf == NULL) { |
| 175 | fprintf(out_file, " [NULL]"); |
| 176 | } else if (show) { |
| 177 | for (i = 0; i < len; i++) |
| 178 | fprintf(out_file, " %02x", buf[i]); |
| 179 | } else { |
| 180 | fprintf(out_file, " [REMOVED]"); |
| 181 | } |
| 182 | fprintf(out_file, "\n"); |
| 183 | } else { |
| 184 | #endif /* CONFIG_DEBUG_FILE */ |
| 185 | printf("%s - hexdump(len=%lu):", title, (unsigned long) len); |
| 186 | if (buf == NULL) { |
| 187 | printf(" [NULL]"); |
| 188 | } else if (show) { |
| 189 | for (i = 0; i < len; i++) |
| 190 | printf(" %02x", buf[i]); |
| 191 | } else { |
| 192 | printf(" [REMOVED]"); |
| 193 | } |
| 194 | printf("\n"); |
| 195 | #ifdef CONFIG_DEBUG_FILE |
| 196 | } |
| 197 | #endif /* CONFIG_DEBUG_FILE */ |
| 198 | } |
| 199 | |
| 200 | void wpa_hexdump(int level, const char *title, const u8 *buf, size_t len) |
| 201 | { |
| 202 | _wpa_hexdump(level, title, buf, len, 1); |
| 203 | } |
| 204 | |
| 205 | |
| 206 | void wpa_hexdump_key(int level, const char *title, const u8 *buf, size_t len) |
| 207 | { |
| 208 | _wpa_hexdump(level, title, buf, len, wpa_debug_show_keys); |
| 209 | } |
| 210 | |
| 211 | |
| 212 | static void _wpa_hexdump_ascii(int level, const char *title, const u8 *buf, |
| 213 | size_t len, int show) |
| 214 | { |
| 215 | size_t i, llen; |
| 216 | const u8 *pos = buf; |
| 217 | const size_t line_len = 16; |
| 218 | |
| 219 | if (level < wpa_debug_level) |
| 220 | return; |
| 221 | wpa_debug_print_timestamp(); |
| 222 | #ifdef CONFIG_DEBUG_FILE |
| 223 | if (out_file) { |
| 224 | if (!show) { |
| 225 | fprintf(out_file, |
| 226 | "%s - hexdump_ascii(len=%lu): [REMOVED]\n", |
| 227 | title, (unsigned long) len); |
| 228 | return; |
| 229 | } |
| 230 | if (buf == NULL) { |
| 231 | fprintf(out_file, |
| 232 | "%s - hexdump_ascii(len=%lu): [NULL]\n", |
| 233 | title, (unsigned long) len); |
| 234 | return; |
| 235 | } |
| 236 | fprintf(out_file, "%s - hexdump_ascii(len=%lu):\n", |
| 237 | title, (unsigned long) len); |
| 238 | while (len) { |
| 239 | llen = len > line_len ? line_len : len; |
| 240 | fprintf(out_file, " "); |
| 241 | for (i = 0; i < llen; i++) |
| 242 | fprintf(out_file, " %02x", pos[i]); |
| 243 | for (i = llen; i < line_len; i++) |
| 244 | fprintf(out_file, " "); |
| 245 | fprintf(out_file, " "); |
| 246 | for (i = 0; i < llen; i++) { |
| 247 | if (isprint(pos[i])) |
| 248 | fprintf(out_file, "%c", pos[i]); |
| 249 | else |
| 250 | fprintf(out_file, "_"); |
| 251 | } |
| 252 | for (i = llen; i < line_len; i++) |
| 253 | fprintf(out_file, " "); |
| 254 | fprintf(out_file, "\n"); |
| 255 | pos += llen; |
| 256 | len -= llen; |
| 257 | } |
| 258 | } else { |
| 259 | #endif /* CONFIG_DEBUG_FILE */ |
| 260 | if (!show) { |
| 261 | printf("%s - hexdump_ascii(len=%lu): [REMOVED]\n", |
| 262 | title, (unsigned long) len); |
| 263 | return; |
| 264 | } |
| 265 | if (buf == NULL) { |
| 266 | printf("%s - hexdump_ascii(len=%lu): [NULL]\n", |
| 267 | title, (unsigned long) len); |
| 268 | return; |
| 269 | } |
| 270 | printf("%s - hexdump_ascii(len=%lu):\n", title, (unsigned long) len); |
| 271 | while (len) { |
| 272 | llen = len > line_len ? line_len : len; |
| 273 | printf(" "); |
| 274 | for (i = 0; i < llen; i++) |
| 275 | printf(" %02x", pos[i]); |
| 276 | for (i = llen; i < line_len; i++) |
| 277 | printf(" "); |
| 278 | printf(" "); |
| 279 | for (i = 0; i < llen; i++) { |
| 280 | if (isprint(pos[i])) |
| 281 | printf("%c", pos[i]); |
| 282 | else |
| 283 | printf("_"); |
| 284 | } |
| 285 | for (i = llen; i < line_len; i++) |
| 286 | printf(" "); |
| 287 | printf("\n"); |
| 288 | pos += llen; |
| 289 | len -= llen; |
| 290 | } |
| 291 | #ifdef CONFIG_DEBUG_FILE |
| 292 | } |
| 293 | #endif /* CONFIG_DEBUG_FILE */ |
| 294 | } |
| 295 | |
| 296 | |
| 297 | void wpa_hexdump_ascii(int level, const char *title, const u8 *buf, size_t len) |
| 298 | { |
| 299 | _wpa_hexdump_ascii(level, title, buf, len, 1); |
| 300 | } |
| 301 | |
| 302 | |
| 303 | void wpa_hexdump_ascii_key(int level, const char *title, const u8 *buf, |
| 304 | size_t len) |
| 305 | { |
| 306 | _wpa_hexdump_ascii(level, title, buf, len, wpa_debug_show_keys); |
| 307 | } |
| 308 | |
| 309 | |
| 310 | #ifdef CONFIG_DEBUG_FILE |
| 311 | static char *last_path = NULL; |
| 312 | #endif /* CONFIG_DEBUG_FILE */ |
| 313 | |
| 314 | int wpa_debug_reopen_file(void) |
| 315 | { |
| 316 | #ifdef CONFIG_DEBUG_FILE |
| 317 | int rv; |
| 318 | if (last_path) { |
| 319 | char *tmp = os_strdup(last_path); |
| 320 | wpa_debug_close_file(); |
| 321 | rv = wpa_debug_open_file(tmp); |
| 322 | os_free(tmp); |
| 323 | } else { |
| 324 | wpa_printf(MSG_ERROR, "Last-path was not set, cannot " |
| 325 | "re-open log file."); |
| 326 | rv = -1; |
| 327 | } |
| 328 | return rv; |
| 329 | #else /* CONFIG_DEBUG_FILE */ |
| 330 | return 0; |
| 331 | #endif /* CONFIG_DEBUG_FILE */ |
| 332 | } |
| 333 | |
| 334 | |
| 335 | int wpa_debug_open_file(const char *path) |
| 336 | { |
| 337 | #ifdef CONFIG_DEBUG_FILE |
| 338 | if (!path) |
| 339 | return 0; |
| 340 | |
| 341 | if (last_path == NULL || os_strcmp(last_path, path) != 0) { |
| 342 | /* Save our path to enable re-open */ |
| 343 | os_free(last_path); |
| 344 | last_path = os_strdup(path); |
| 345 | } |
| 346 | |
| 347 | out_file = fopen(path, "a"); |
| 348 | if (out_file == NULL) { |
| 349 | wpa_printf(MSG_ERROR, "wpa_debug_open_file: Failed to open " |
| 350 | "output file, using standard output"); |
| 351 | return -1; |
| 352 | } |
| 353 | #ifndef _WIN32 |
| 354 | setvbuf(out_file, NULL, _IOLBF, 0); |
| 355 | #endif /* _WIN32 */ |
| 356 | #endif /* CONFIG_DEBUG_FILE */ |
| 357 | return 0; |
| 358 | } |
| 359 | |
| 360 | |
| 361 | void wpa_debug_close_file(void) |
| 362 | { |
| 363 | #ifdef CONFIG_DEBUG_FILE |
| 364 | if (!out_file) |
| 365 | return; |
| 366 | fclose(out_file); |
| 367 | out_file = NULL; |
| 368 | os_free(last_path); |
| 369 | last_path = NULL; |
| 370 | #endif /* CONFIG_DEBUG_FILE */ |
| 371 | } |
| 372 | |
| 373 | #endif /* CONFIG_NO_STDOUT_DEBUG */ |
| 374 | |
| 375 | #endif /* CONFIG_ANDROID_LOG */ |
| 376 | |
| 377 | #ifndef CONFIG_NO_WPA_MSG |
| 378 | static wpa_msg_cb_func wpa_msg_cb = NULL; |
| 379 | |
| 380 | void wpa_msg_register_cb(wpa_msg_cb_func func) |
| 381 | { |
| 382 | wpa_msg_cb = func; |
| 383 | } |
| 384 | |
| 385 | |
| 386 | static wpa_msg_get_ifname_func wpa_msg_ifname_cb = NULL; |
| 387 | |
| 388 | void wpa_msg_register_ifname_cb(wpa_msg_get_ifname_func func) |
| 389 | { |
| 390 | wpa_msg_ifname_cb = func; |
| 391 | } |
| 392 | |
| 393 | |
| 394 | void wpa_msg(void *ctx, int level, const char *fmt, ...) |
| 395 | { |
| 396 | va_list ap; |
| 397 | char *buf; |
| 398 | const int buflen = 2048; |
| 399 | int len; |
| 400 | char prefix[130]; |
| 401 | |
| 402 | buf = os_malloc(buflen); |
| 403 | if (buf == NULL) { |
| 404 | wpa_printf(MSG_ERROR, "wpa_msg: Failed to allocate message " |
| 405 | "buffer"); |
| 406 | return; |
| 407 | } |
| 408 | va_start(ap, fmt); |
| 409 | prefix[0] = '\0'; |
| 410 | if (wpa_msg_ifname_cb) { |
| 411 | const char *ifname = wpa_msg_ifname_cb(ctx); |
| 412 | if (ifname) { |
| 413 | int res = os_snprintf(prefix, sizeof(prefix), "%s: ", |
| 414 | ifname); |
| 415 | if (res < 0 || res >= (int) sizeof(prefix)) |
| 416 | prefix[0] = '\0'; |
| 417 | } |
| 418 | } |
| 419 | len = vsnprintf(buf, buflen, fmt, ap); |
| 420 | va_end(ap); |
| 421 | wpa_printf(level, "%s%s", prefix, buf); |
| 422 | if (wpa_msg_cb) |
| 423 | wpa_msg_cb(ctx, level, buf, len); |
| 424 | os_free(buf); |
| 425 | } |
| 426 | |
| 427 | |
| 428 | void wpa_msg_ctrl(void *ctx, int level, const char *fmt, ...) |
| 429 | { |
| 430 | va_list ap; |
| 431 | char *buf; |
| 432 | const int buflen = 2048; |
| 433 | int len; |
| 434 | |
| 435 | if (!wpa_msg_cb) |
| 436 | return; |
| 437 | |
| 438 | buf = os_malloc(buflen); |
| 439 | if (buf == NULL) { |
| 440 | wpa_printf(MSG_ERROR, "wpa_msg_ctrl: Failed to allocate " |
| 441 | "message buffer"); |
| 442 | return; |
| 443 | } |
| 444 | va_start(ap, fmt); |
| 445 | len = vsnprintf(buf, buflen, fmt, ap); |
| 446 | va_end(ap); |
| 447 | wpa_msg_cb(ctx, level, buf, len); |
| 448 | os_free(buf); |
| 449 | } |
| 450 | #endif /* CONFIG_NO_WPA_MSG */ |
| 451 | |
| 452 | |
| 453 | #ifndef CONFIG_NO_HOSTAPD_LOGGER |
| 454 | static hostapd_logger_cb_func hostapd_logger_cb = NULL; |
| 455 | |
| 456 | void hostapd_logger_register_cb(hostapd_logger_cb_func func) |
| 457 | { |
| 458 | hostapd_logger_cb = func; |
| 459 | } |
| 460 | |
| 461 | |
| 462 | void hostapd_logger(void *ctx, const u8 *addr, unsigned int module, int level, |
| 463 | const char *fmt, ...) |
| 464 | { |
| 465 | va_list ap; |
| 466 | char *buf; |
| 467 | const int buflen = 2048; |
| 468 | int len; |
| 469 | |
| 470 | buf = os_malloc(buflen); |
| 471 | if (buf == NULL) { |
| 472 | wpa_printf(MSG_ERROR, "hostapd_logger: Failed to allocate " |
| 473 | "message buffer"); |
| 474 | return; |
| 475 | } |
| 476 | va_start(ap, fmt); |
| 477 | len = vsnprintf(buf, buflen, fmt, ap); |
| 478 | va_end(ap); |
| 479 | if (hostapd_logger_cb) |
| 480 | hostapd_logger_cb(ctx, addr, module, level, buf, len); |
| 481 | else if (addr) |
| 482 | wpa_printf(MSG_DEBUG, "hostapd_logger: STA " MACSTR " - %s", |
| 483 | MAC2STR(addr), buf); |
| 484 | else |
| 485 | wpa_printf(MSG_DEBUG, "hostapd_logger: %s", buf); |
| 486 | os_free(buf); |
| 487 | } |
| 488 | #endif /* CONFIG_NO_HOSTAPD_LOGGER */ |