1/* 2 * wpa_supplicant/hostapd / Debug prints 3 * Copyright (c) 2002-2013, Jouni Malinen <j@w1.fi> 4 * 5 * This software may be distributed under the terms of the BSD license. 6 * See README for more details. 7 */ 8 9#ifndef WPA_DEBUG_H 10#define WPA_DEBUG_H 11 12#include "wpabuf.h" 13 14extern int wpa_debug_level; 15extern int wpa_debug_show_keys; 16extern int wpa_debug_timestamp; 17 18/* Debugging function - conditional printf and hex dump. Driver wrappers can 19 * use these for debugging purposes. */ 20 21enum { 22 MSG_EXCESSIVE, MSG_MSGDUMP, MSG_DEBUG, MSG_INFO, MSG_WARNING, MSG_ERROR 23}; 24 25#ifdef CONFIG_NO_STDOUT_DEBUG 26 27#define wpa_debug_print_timestamp() do { } while (0) 28#define wpa_printf(args...) do { } while (0) 29#define wpa_hexdump(l,t,b,le) do { } while (0) 30#define wpa_hexdump_buf(l,t,b) do { } while (0) 31#define wpa_hexdump_key(l,t,b,le) do { } while (0) 32#define wpa_hexdump_buf_key(l,t,b) do { } while (0) 33#define wpa_hexdump_ascii(l,t,b,le) do { } while (0) 34#define wpa_hexdump_ascii_key(l,t,b,le) do { } while (0) 35#define wpa_debug_open_file(p) do { } while (0) 36#define wpa_debug_close_file() do { } while (0) 37#define wpa_debug_setup_stdout() do { } while (0) 38#define wpa_dbg(args...) do { } while (0) 39 40static inline int wpa_debug_reopen_file(void) 41{ 42 return 0; 43} 44 45#else /* CONFIG_NO_STDOUT_DEBUG */ 46 47int wpa_debug_open_file(const char *path); 48int wpa_debug_reopen_file(void); 49void wpa_debug_close_file(void); 50void wpa_debug_setup_stdout(void); 51 52/** 53 * wpa_debug_printf_timestamp - Print timestamp for debug output 54 * 55 * This function prints a timestamp in seconds_from_1970.microsoconds 56 * format if debug output has been configured to include timestamps in debug 57 * messages. 58 */ 59void wpa_debug_print_timestamp(void); 60 61/** 62 * wpa_printf - conditional printf 63 * @level: priority level (MSG_*) of the message 64 * @fmt: printf format string, followed by optional arguments 65 * 66 * This function is used to print conditional debugging and error messages. The 67 * output may be directed to stdout, stderr, and/or syslog based on 68 * configuration. 69 * 70 * Note: New line '\n' is added to the end of the text when printing to stdout. 71 */ 72void wpa_printf(int level, const char *fmt, ...) 73PRINTF_FORMAT(2, 3); 74 75/** 76 * wpa_hexdump - conditional hex dump 77 * @level: priority level (MSG_*) of the message 78 * @title: title of for the message 79 * @buf: data buffer to be dumped 80 * @len: length of the buf 81 * 82 * This function is used to print conditional debugging and error messages. The 83 * output may be directed to stdout, stderr, and/or syslog based on 84 * configuration. The contents of buf is printed out has hex dump. 85 */ 86void wpa_hexdump(int level, const char *title, const void *buf, size_t len); 87 88static inline void wpa_hexdump_buf(int level, const char *title, 89 const struct wpabuf *buf) 90{ 91 wpa_hexdump(level, title, buf ? wpabuf_head(buf) : NULL, 92 buf ? wpabuf_len(buf) : 0); 93} 94 95/** 96 * wpa_hexdump_key - conditional hex dump, hide keys 97 * @level: priority level (MSG_*) of the message 98 * @title: title of for the message 99 * @buf: data buffer to be dumped 100 * @len: length of the buf 101 * 102 * This function is used to print conditional debugging and error messages. The 103 * output may be directed to stdout, stderr, and/or syslog based on 104 * configuration. The contents of buf is printed out has hex dump. This works 105 * like wpa_hexdump(), but by default, does not include secret keys (passwords, 106 * etc.) in debug output. 107 */ 108void wpa_hexdump_key(int level, const char *title, const void *buf, size_t len); 109 110static inline void wpa_hexdump_buf_key(int level, const char *title, 111 const struct wpabuf *buf) 112{ 113 wpa_hexdump_key(level, title, buf ? wpabuf_head(buf) : NULL, 114 buf ? wpabuf_len(buf) : 0); 115} 116 117/** 118 * wpa_hexdump_ascii - conditional hex dump 119 * @level: priority level (MSG_*) of the message 120 * @title: title of for the message 121 * @buf: data buffer to be dumped 122 * @len: length of the buf 123 * 124 * This function is used to print conditional debugging and error messages. The 125 * output may be directed to stdout, stderr, and/or syslog based on 126 * configuration. The contents of buf is printed out has hex dump with both 127 * the hex numbers and ASCII characters (for printable range) are shown. 16 128 * bytes per line will be shown. 129 */ 130void wpa_hexdump_ascii(int level, const char *title, const void *buf, 131 size_t len); 132 133/** 134 * wpa_hexdump_ascii_key - conditional hex dump, hide keys 135 * @level: priority level (MSG_*) of the message 136 * @title: title of for the message 137 * @buf: data buffer to be dumped 138 * @len: length of the buf 139 * 140 * This function is used to print conditional debugging and error messages. The 141 * output may be directed to stdout, stderr, and/or syslog based on 142 * configuration. The contents of buf is printed out has hex dump with both 143 * the hex numbers and ASCII characters (for printable range) are shown. 16 144 * bytes per line will be shown. This works like wpa_hexdump_ascii(), but by 145 * default, does not include secret keys (passwords, etc.) in debug output. 146 */ 147void wpa_hexdump_ascii_key(int level, const char *title, const void *buf, 148 size_t len); 149 150/* 151 * wpa_dbg() behaves like wpa_msg(), but it can be removed from build to reduce 152 * binary size. As such, it should be used with debugging messages that are not 153 * needed in the control interface while wpa_msg() has to be used for anything 154 * that needs to shown to control interface monitors. 155 */ 156#define wpa_dbg(args...) wpa_msg(args) 157 158#endif /* CONFIG_NO_STDOUT_DEBUG */ 159 160 161#ifdef CONFIG_NO_WPA_MSG 162#define wpa_msg(args...) do { } while (0) 163#define wpa_msg_ctrl(args...) do { } while (0) 164#define wpa_msg_global(args...) do { } while (0) 165#define wpa_msg_global_ctrl(args...) do { } while (0) 166#define wpa_msg_no_global(args...) do { } while (0) 167#define wpa_msg_register_cb(f) do { } while (0) 168#define wpa_msg_register_ifname_cb(f) do { } while (0) 169#else /* CONFIG_NO_WPA_MSG */ 170/** 171 * wpa_msg - Conditional printf for default target and ctrl_iface monitors 172 * @ctx: Pointer to context data; this is the ctx variable registered 173 * with struct wpa_driver_ops::init() 174 * @level: priority level (MSG_*) of the message 175 * @fmt: printf format string, followed by optional arguments 176 * 177 * This function is used to print conditional debugging and error messages. The 178 * output may be directed to stdout, stderr, and/or syslog based on 179 * configuration. This function is like wpa_printf(), but it also sends the 180 * same message to all attached ctrl_iface monitors. 181 * 182 * Note: New line '\n' is added to the end of the text when printing to stdout. 183 */ 184void wpa_msg(void *ctx, int level, const char *fmt, ...) PRINTF_FORMAT(3, 4); 185 186/** 187 * wpa_msg_ctrl - Conditional printf for ctrl_iface monitors 188 * @ctx: Pointer to context data; this is the ctx variable registered 189 * with struct wpa_driver_ops::init() 190 * @level: priority level (MSG_*) of the message 191 * @fmt: printf format string, followed by optional arguments 192 * 193 * This function is used to print conditional debugging and error messages. 194 * This function is like wpa_msg(), but it sends the output only to the 195 * attached ctrl_iface monitors. In other words, it can be used for frequent 196 * events that do not need to be sent to syslog. 197 */ 198void wpa_msg_ctrl(void *ctx, int level, const char *fmt, ...) 199PRINTF_FORMAT(3, 4); 200 201/** 202 * wpa_msg_global - Global printf for ctrl_iface monitors 203 * @ctx: Pointer to context data; this is the ctx variable registered 204 * with struct wpa_driver_ops::init() 205 * @level: priority level (MSG_*) of the message 206 * @fmt: printf format string, followed by optional arguments 207 * 208 * This function is used to print conditional debugging and error messages. 209 * This function is like wpa_msg(), but it sends the output as a global event, 210 * i.e., without being specific to an interface. For backwards compatibility, 211 * an old style event is also delivered on one of the interfaces (the one 212 * specified by the context data). 213 */ 214void wpa_msg_global(void *ctx, int level, const char *fmt, ...) 215PRINTF_FORMAT(3, 4); 216 217/** 218 * wpa_msg_global_ctrl - Conditional global printf for ctrl_iface monitors 219 * @ctx: Pointer to context data; this is the ctx variable registered 220 * with struct wpa_driver_ops::init() 221 * @level: priority level (MSG_*) of the message 222 * @fmt: printf format string, followed by optional arguments 223 * 224 * This function is used to print conditional debugging and error messages. 225 * This function is like wpa_msg_global(), but it sends the output only to the 226 * attached global ctrl_iface monitors. In other words, it can be used for 227 * frequent events that do not need to be sent to syslog. 228 */ 229void wpa_msg_global_ctrl(void *ctx, int level, const char *fmt, ...) 230PRINTF_FORMAT(3, 4); 231 232/** 233 * wpa_msg_no_global - Conditional printf for ctrl_iface monitors 234 * @ctx: Pointer to context data; this is the ctx variable registered 235 * with struct wpa_driver_ops::init() 236 * @level: priority level (MSG_*) of the message 237 * @fmt: printf format string, followed by optional arguments 238 * 239 * This function is used to print conditional debugging and error messages. 240 * This function is like wpa_msg(), but it does not send the output as a global 241 * event. 242 */ 243void wpa_msg_no_global(void *ctx, int level, const char *fmt, ...) 244PRINTF_FORMAT(3, 4); 245 246enum wpa_msg_type { 247 WPA_MSG_PER_INTERFACE, 248 WPA_MSG_GLOBAL, 249 WPA_MSG_NO_GLOBAL, 250}; 251 252typedef void (*wpa_msg_cb_func)(void *ctx, int level, enum wpa_msg_type type, 253 const char *txt, size_t len); 254 255/** 256 * wpa_msg_register_cb - Register callback function for wpa_msg() messages 257 * @func: Callback function (%NULL to unregister) 258 */ 259void wpa_msg_register_cb(wpa_msg_cb_func func); 260 261typedef const char * (*wpa_msg_get_ifname_func)(void *ctx); 262void wpa_msg_register_ifname_cb(wpa_msg_get_ifname_func func); 263 264#endif /* CONFIG_NO_WPA_MSG */ 265 266#ifdef CONFIG_NO_HOSTAPD_LOGGER 267#define hostapd_logger(args...) do { } while (0) 268#define hostapd_logger_register_cb(f) do { } while (0) 269#else /* CONFIG_NO_HOSTAPD_LOGGER */ 270void hostapd_logger(void *ctx, const u8 *addr, unsigned int module, int level, 271 const char *fmt, ...) PRINTF_FORMAT(5, 6); 272 273typedef void (*hostapd_logger_cb_func)(void *ctx, const u8 *addr, 274 unsigned int module, int level, 275 const char *txt, size_t len); 276 277/** 278 * hostapd_logger_register_cb - Register callback function for hostapd_logger() 279 * @func: Callback function (%NULL to unregister) 280 */ 281void hostapd_logger_register_cb(hostapd_logger_cb_func func); 282#endif /* CONFIG_NO_HOSTAPD_LOGGER */ 283 284#define HOSTAPD_MODULE_IEEE80211 0x00000001 285#define HOSTAPD_MODULE_IEEE8021X 0x00000002 286#define HOSTAPD_MODULE_RADIUS 0x00000004 287#define HOSTAPD_MODULE_WPA 0x00000008 288#define HOSTAPD_MODULE_DRIVER 0x00000010 289#define HOSTAPD_MODULE_IAPP 0x00000020 290#define HOSTAPD_MODULE_MLME 0x00000040 291 292enum hostapd_logger_level { 293 HOSTAPD_LEVEL_DEBUG_VERBOSE = 0, 294 HOSTAPD_LEVEL_DEBUG = 1, 295 HOSTAPD_LEVEL_INFO = 2, 296 HOSTAPD_LEVEL_NOTICE = 3, 297 HOSTAPD_LEVEL_WARNING = 4 298}; 299 300 301#ifdef CONFIG_DEBUG_SYSLOG 302 303void wpa_debug_open_syslog(void); 304void wpa_debug_close_syslog(void); 305 306#else /* CONFIG_DEBUG_SYSLOG */ 307 308static inline void wpa_debug_open_syslog(void) 309{ 310} 311 312static inline void wpa_debug_close_syslog(void) 313{ 314} 315 316#endif /* CONFIG_DEBUG_SYSLOG */ 317 318#ifdef CONFIG_DEBUG_LINUX_TRACING 319 320int wpa_debug_open_linux_tracing(void); 321void wpa_debug_close_linux_tracing(void); 322 323#else /* CONFIG_DEBUG_LINUX_TRACING */ 324 325static inline int wpa_debug_open_linux_tracing(void) 326{ 327 return 0; 328} 329 330static inline void wpa_debug_close_linux_tracing(void) 331{ 332} 333 334#endif /* CONFIG_DEBUG_LINUX_TRACING */ 335 336 337#ifdef EAPOL_TEST 338#define WPA_ASSERT(a) \ 339 do { \ 340 if (!(a)) { \ 341 printf("WPA_ASSERT FAILED '" #a "' " \ 342 "%s %s:%d\n", \ 343 __FUNCTION__, __FILE__, __LINE__); \ 344 exit(1); \ 345 } \ 346 } while (0) 347#else 348#define WPA_ASSERT(a) do { } while (0) 349#endif 350 351#endif /* WPA_DEBUG_H */ 352