293 lines
8.1 KiB
C
293 lines
8.1 KiB
C
/*
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* wpa_supplicant/hostapd / common helper functions, etc.
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* Copyright (c) 2002-2005, Jouni Malinen <jkmaline@cc.hut.fi>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* Alternatively, this software may be distributed under the terms of BSD
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* license.
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*
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* See README and COPYING for more details.
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*
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* $FreeBSD$
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*/
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#ifndef COMMON_H
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#define COMMON_H
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#ifdef __linux__
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#include <endian.h>
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#include <byteswap.h>
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#endif /* __linux__ */
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#if defined(__FreeBSD__) || defined(__NetBSD__)
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#include <sys/types.h>
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#include <sys/endian.h>
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#define __BYTE_ORDER _BYTE_ORDER
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#define __LITTLE_ENDIAN _LITTLE_ENDIAN
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#define __BIG_ENDIAN _BIG_ENDIAN
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#define bswap_16 bswap16
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#define bswap_32 bswap32
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#define bswap_64 bswap64
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#endif /* defined(__FreeBSD__) || defined(__NetBSD__) */
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#ifdef CONFIG_NATIVE_WINDOWS
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#include <winsock2.h>
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static inline int daemon(int nochdir, int noclose)
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{
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printf("Windows - daemon() not supported yet\n");
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return -1;
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}
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static inline void sleep(int seconds)
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{
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Sleep(seconds * 1000);
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}
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static inline void usleep(unsigned long usec)
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{
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Sleep(usec / 1000);
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}
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#ifndef timersub
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#define timersub(a, b, res) do { \
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(res)->tv_sec = (a)->tv_sec - (b)->tv_sec; \
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(res)->tv_usec = (a)->tv_usec - (b)->tv_usec; \
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if ((res)->tv_usec < 0) { \
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(res)->tv_sec--; \
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(res)->tv_usec += 1000000; \
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} \
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} while (0)
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#endif
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struct timezone {
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int tz_minuteswest;
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int tz_dsttime;
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};
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int gettimeofday(struct timeval *tv, struct timezone *tz);
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static inline long int random(void)
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{
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return rand();
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}
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typedef int gid_t;
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typedef int socklen_t;
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#ifndef MSG_DONTWAIT
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#define MSG_DONTWAIT 0 /* not supported */
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#endif
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#endif /* CONFIG_NATIVE_WINDOWS */
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#if defined(__CYGWIN__) || defined(CONFIG_NATIVE_WINDOWS)
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static inline unsigned short wpa_swap_16(unsigned short v)
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{
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return ((v & 0xff) << 8) | (v >> 8);
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}
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static inline unsigned int wpa_swap_32(unsigned int v)
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{
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return ((v & 0xff) << 24) | ((v & 0xff00) << 8) |
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((v & 0xff0000) >> 8) | (v >> 24);
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}
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#define le_to_host16(n) (n)
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#define host_to_le16(n) (n)
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#define be_to_host16(n) wpa_swap_16(n)
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#define host_to_be16(n) wpa_swap_16(n)
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#define le_to_host32(n) (n)
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#define be_to_host32(n) wpa_swap_32(n)
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#define host_to_be32(n) wpa_swap_32(n)
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#else /* __CYGWIN__ */
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#if __BYTE_ORDER == __LITTLE_ENDIAN
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#define le_to_host16(n) (n)
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#define host_to_le16(n) (n)
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#define be_to_host16(n) bswap_16(n)
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#define host_to_be16(n) bswap_16(n)
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#define le_to_host32(n) (n)
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#define be_to_host32(n) bswap_32(n)
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#define host_to_be32(n) bswap_32(n)
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#elif __BYTE_ORDER == __BIG_ENDIAN
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#define le_to_host16(n) bswap_16(n)
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#define host_to_le16(n) bswap_16(n)
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#define be_to_host16(n) (n)
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#define host_to_be16(n) (n)
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#define le_to_host32(n) bswap_32(n)
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#define be_to_host32(n) (n)
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#define host_to_be32(n) (n)
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#ifndef WORDS_BIGENDIAN
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#define WORDS_BIGENDIAN
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#endif
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#else
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#error Could not determine CPU byte order
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#endif
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#endif /* __CYGWIN__ */
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/* Macros for handling unaligned 16-bit variables */
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#define WPA_GET_BE16(a) ((u16) (((a)[0] << 8) | (a)[1]))
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#define WPA_PUT_BE16(a, val) \
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do { \
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(a)[0] = ((u16) (val)) >> 8; \
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(a)[1] = ((u16) (val)) & 0xff; \
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} while (0)
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#define WPA_GET_LE16(a) ((u16) (((a)[1] << 8) | (a)[0]))
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#define WPA_PUT_LE16(a, val) \
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do { \
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(a)[1] = ((u16) (val)) >> 8; \
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(a)[0] = ((u16) (val)) & 0xff; \
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} while (0)
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#ifndef ETH_ALEN
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#define ETH_ALEN 6
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#endif
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#include <stdint.h>
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typedef uint64_t u64;
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typedef uint32_t u32;
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typedef uint16_t u16;
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typedef uint8_t u8;
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typedef int64_t s64;
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typedef int32_t s32;
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typedef int16_t s16;
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typedef int8_t s8;
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int hostapd_get_rand(u8 *buf, size_t len);
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void hostapd_hexdump(const char *title, const u8 *buf, size_t len);
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int hwaddr_aton(const char *txt, u8 *addr);
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int hexstr2bin(const char *hex, u8 *buf, size_t len);
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char * rel2abs_path(const char *rel_path);
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void inc_byte_array(u8 *counter, size_t len);
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void print_char(char c);
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void fprint_char(FILE *f, char c);
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/* Debugging function - conditional printf and hex dump. Driver wrappers can
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* use these for debugging purposes. */
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enum { MSG_MSGDUMP, MSG_DEBUG, MSG_INFO, MSG_WARNING, MSG_ERROR };
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#ifdef CONFIG_NO_STDOUT_DEBUG
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#define wpa_debug_print_timestamp() do { } while (0)
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#define wpa_printf(args...) do { } while (0)
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#define wpa_hexdump(args...) do { } while (0)
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#define wpa_hexdump_key(args...) do { } while (0)
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#define wpa_hexdump_ascii(args...) do { } while (0)
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#define wpa_hexdump_ascii_key(args...) do { } while (0)
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#else /* CONFIG_NO_STDOUT_DEBUG */
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/**
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* wpa_debug_printf_timestamp - Print timestamp for debug output
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*
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* This function prints a timestamp in <seconds from 1970>.<microsoconds>
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* format if debug output has been configured to include timestamps in debug
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* messages.
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*/
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void wpa_debug_print_timestamp(void);
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/**
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* wpa_printf - conditional printf
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* @level: priority level (MSG_*) of the message
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* @fmt: printf format string, followed by optional arguments
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*
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* This function is used to print conditional debugging and error messages. The
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* output may be directed to stdout, stderr, and/or syslog based on
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* configuration.
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*
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* Note: New line '\n' is added to the end of the text when printing to stdout.
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*/
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void wpa_printf(int level, char *fmt, ...)
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__attribute__ ((format (printf, 2, 3)));
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/**
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* wpa_hexdump - conditional hex dump
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* @level: priority level (MSG_*) of the message
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* @title: title of for the message
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* @buf: data buffer to be dumped
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* @len: length of the buf
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*
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* This function is used to print conditional debugging and error messages. The
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* output may be directed to stdout, stderr, and/or syslog based on
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* configuration. The contents of buf is printed out has hex dump.
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*/
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void wpa_hexdump(int level, const char *title, const u8 *buf, size_t len);
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/**
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* wpa_hexdump_key - conditional hex dump, hide keys
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* @level: priority level (MSG_*) of the message
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* @title: title of for the message
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* @buf: data buffer to be dumped
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* @len: length of the buf
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*
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* This function is used to print conditional debugging and error messages. The
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* output may be directed to stdout, stderr, and/or syslog based on
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* configuration. The contents of buf is printed out has hex dump. This works
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* like wpa_hexdump(), but by default, does not include secret keys (passwords,
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* etc.) in debug output.
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*/
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void wpa_hexdump_key(int level, const char *title, const u8 *buf, size_t len);
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/**
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* wpa_hexdump_ascii - conditional hex dump
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* @level: priority level (MSG_*) of the message
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* @title: title of for the message
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* @buf: data buffer to be dumped
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* @len: length of the buf
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*
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* This function is used to print conditional debugging and error messages. The
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* output may be directed to stdout, stderr, and/or syslog based on
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* configuration. The contents of buf is printed out has hex dump with both
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* the hex numbers and ASCII characters (for printable range) are shown. 16
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* bytes per line will be shown.
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*/
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void wpa_hexdump_ascii(int level, const char *title, const u8 *buf,
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size_t len);
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/**
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* wpa_hexdump_ascii_key - conditional hex dump, hide keys
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* @level: priority level (MSG_*) of the message
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* @title: title of for the message
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* @buf: data buffer to be dumped
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* @len: length of the buf
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*
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* This function is used to print conditional debugging and error messages. The
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* output may be directed to stdout, stderr, and/or syslog based on
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* configuration. The contents of buf is printed out has hex dump with both
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* the hex numbers and ASCII characters (for printable range) are shown. 16
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* bytes per line will be shown. This works like wpa_hexdump_ascii(), but by
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* default, does not include secret keys (passwords, etc.) in debug output.
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*/
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void wpa_hexdump_ascii_key(int level, const char *title, const u8 *buf,
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size_t len);
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#endif /* CONFIG_NO_STDOUT_DEBUG */
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#ifdef EAPOL_TEST
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#define WPA_ASSERT(a) \
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do { \
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if (!(a)) { \
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printf("WPA_ASSERT FAILED '" #a "' " \
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"%s %s:%d\n", \
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__FUNCTION__, __FILE__, __LINE__); \
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exit(1); \
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} \
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} while (0)
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#else
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#define WPA_ASSERT(a) do { } while (0)
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#endif
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#endif /* COMMON_H */
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