/* * wpa_supplicant/hostapd / Internal implementation of OS specific functions * Copyright (c) 2005-2006, Jouni Malinen * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * Alternatively, this software may be distributed under the terms of BSD * license. * * See README and COPYING for more details. * * This file is an example of operating system specific wrapper functions. * This version implements many of the functions internally, so it can be used * to fill in missing functions from the target system C libraries. * * Some of the functions are using standard C library calls in order to keep * this file in working condition to allow the functions to be tested on a * Linux target. Please note that OS_NO_C_LIB_DEFINES needs to be defined for * this file to work correctly. Note that these implementations are only * examples and are not optimized for speed. */ #include "os.h" #include #include #include #include "esp_system.h" #include "utils/common.h" #include "mbedtls/platform_util.h" int os_get_time(struct os_time *t) { struct timeval tv; int ret = gettimeofday(&tv, NULL); t->sec = (os_time_t) tv.tv_sec; t->usec = tv.tv_usec; return ret; } unsigned long os_random(void) { return esp_random(); } int os_get_random(unsigned char *buf, size_t len) { esp_fill_random(buf, len); return 0; } void os_sleep(os_time_t sec, os_time_t usec) { if (sec) { sleep(sec); } if (usec) { usleep(usec); } } #ifdef USE_MBEDTLS_CRYPTO void forced_memzero(void *ptr, size_t len) { mbedtls_platform_zeroize(ptr, len); } #endif