mirror of
https://github.com/ghsecuritylab/ameba_ws2812b.git
synced 2024-11-22 02:24:15 +00:00
283 lines
6 KiB
C
283 lines
6 KiB
C
#include "FreeRTOS.h"
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#include "task.h"
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#include "polarssl/config.h"
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#include <string.h>
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#include <stdio.h>
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#include "polarssl/net.h"
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#include "polarssl/ssl.h"
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#include "polarssl/error.h"
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#include "polarssl/memory.h"
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#define SERVER_PORT 443
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#define SERVER_HOST "192.168.13.15"
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#define GET_REQUEST "GET / HTTP/1.0\r\n\r\n"
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#define DEBUG_LEVEL 0
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#define SSL_USE_SRP 0
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#define STACKSIZE 1150
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static int is_task = 0;
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char server_host[16];
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#if SSL_USE_SRP
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char srp_username[16];
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char srp_password[16];
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#endif
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static void my_debug(void *ctx, int level, const char *str)
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{
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if(level <= DEBUG_LEVEL) {
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printf("\n\r%s", str);
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}
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}
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static unsigned int arc4random(void)
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{
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unsigned int res = xTaskGetTickCount();
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static unsigned int seed = 0xDEADB00B;
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seed = ((seed & 0x007F00FF) << 7) ^
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((seed & 0x0F80FF00) >> 8) ^ // be sure to stir those low bits
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(res << 13) ^ (res >> 9); // using the clock too!
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return seed;
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}
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static void get_random_bytes(void *buf, size_t len)
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{
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unsigned int ranbuf;
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unsigned int *lp;
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int i, count;
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count = len / sizeof(unsigned int);
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lp = (unsigned int *) buf;
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for(i = 0; i < count; i ++) {
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lp[i] = arc4random();
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len -= sizeof(unsigned int);
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}
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if(len > 0) {
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ranbuf = arc4random();
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memcpy(&lp[i], &ranbuf, len);
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}
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}
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static int my_random(void *p_rng, unsigned char *output, size_t output_len)
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{
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get_random_bytes(output, output_len);
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return 0;
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}
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#ifdef POLARSSL_MEMORY_C
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static size_t min_heap_size = 0;
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void* my_malloc(size_t size)
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{
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void *ptr = pvPortMalloc(size);
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size_t current_heap_size = xPortGetFreeHeapSize();
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if((current_heap_size < min_heap_size) || (min_heap_size == 0))
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min_heap_size = current_heap_size;
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return ptr;
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}
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#define my_free vPortFree
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#endif
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static void ssl_client(void *param)
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{
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int ret, len, server_fd = -1;
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unsigned char buf[512];
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ssl_context ssl;
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#ifdef POLARSSL_MEMORY_C
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memory_set_own(my_malloc, my_free);
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#endif
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/*
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* 0. Initialize the session data
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*/
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memset(&ssl, 0, sizeof(ssl_context));
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/*
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* 1. Start the connection
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*/
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printf("\n\r . Connecting to tcp/%s/%d...", server_host, SERVER_PORT);
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if((ret = net_connect(&server_fd, server_host, SERVER_PORT)) != 0) {
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printf(" failed\n\r ! net_connect returned %d\n", ret);
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goto exit;
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}
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printf(" ok\n");
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/*
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* 2. Setup stuff
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*/
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printf("\n\r . Setting up the SSL/TLS structure..." );
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if((ret = ssl_init(&ssl)) != 0) {
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printf(" failed\n\r ! ssl_init returned %d\n", ret);
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goto exit;
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}
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printf(" ok\n");
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ssl_set_endpoint(&ssl, SSL_IS_CLIENT);
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ssl_set_authmode(&ssl, SSL_VERIFY_NONE);
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ssl_set_rng(&ssl, my_random, NULL);
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#ifdef POLARSSL_DEBUG_C
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debug_set_threshold(DEBUG_LEVEL);
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#endif
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ssl_set_dbg(&ssl, my_debug, NULL);
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ssl_set_bio(&ssl, net_recv, &server_fd, net_send, &server_fd);
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#if SSL_USE_SRP
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if(strlen(srp_username))
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ssl_set_srp(&ssl, srp_username, strlen(srp_username), srp_password, strlen(srp_password));
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#endif
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/*
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* 3. Handshake
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*/
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printf("\n\r . Performing the SSL/TLS handshake...");
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while((ret = ssl_handshake(&ssl)) != 0) {
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if(ret != POLARSSL_ERR_NET_WANT_READ && ret != POLARSSL_ERR_NET_WANT_WRITE) {
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printf(" failed\n\r ! ssl_handshake returned -0x%x\n", -ret);
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goto exit;
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}
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}
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printf(" ok\n");
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printf("\n\r . Use ciphersuite %s\n", ssl_get_ciphersuite(&ssl));
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/*
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* 4. Write the GET request
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*/
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printf("\n\r > Write to server:");
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len = sprintf((char *) buf, GET_REQUEST);
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while((ret = ssl_write(&ssl, buf, len)) <= 0) {
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if(ret != POLARSSL_ERR_NET_WANT_READ && ret != POLARSSL_ERR_NET_WANT_WRITE) {
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printf(" failed\n\r ! ssl_write returned %d\n", ret);
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goto exit;
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}
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}
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len = ret;
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printf(" %d bytes written\n\r\n\r%s\n", len, (char *) buf);
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/*
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* 5. Read the HTTP response
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*/
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printf("\n\r < Read from server:");
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do {
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len = sizeof(buf) - 1;
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memset(buf, 0, sizeof(buf));
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ret = ssl_read(&ssl, buf, len);
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if(ret == POLARSSL_ERR_NET_WANT_READ || ret == POLARSSL_ERR_NET_WANT_WRITE)
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continue;
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if(ret == POLARSSL_ERR_SSL_PEER_CLOSE_NOTIFY)
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break;
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if(ret < 0) {
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printf(" failed\n\r ! ssl_read returned %d\n", ret);
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break;
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}
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if(ret == 0) {
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printf("\n\rEOF\n");
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break;
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}
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len = ret;
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printf(" %d bytes read\n\r\n\r%s\n", len, (char *) buf);
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}
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while(1);
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ssl_close_notify(&ssl);
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exit:
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#ifdef POLARSSL_ERROR_C
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if(ret != 0) {
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char error_buf[100];
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polarssl_strerror(ret, error_buf, 100);
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printf("\n\rLast error was: %d - %s\n", ret, error_buf);
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}
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#endif
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net_close(server_fd);
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ssl_free(&ssl);
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if(is_task) {
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#if defined(INCLUDE_uxTaskGetStackHighWaterMark) && (INCLUDE_uxTaskGetStackHighWaterMark == 1)
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printf("\n\rMin available stack size of %s = %d * %d bytes\n\r", __FUNCTION__, uxTaskGetStackHighWaterMark(NULL), sizeof(portBASE_TYPE));
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#endif
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#ifdef POLARSSL_MEMORY_C
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if(min_heap_size > 0)
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printf("\n\rMin available heap size = %d bytes during %s\n\r", min_heap_size, __FUNCTION__);
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#endif
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vTaskDelete(NULL);
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}
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if(param != NULL)
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*((int *) param) = ret;
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}
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void start_ssl_client(void)
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{
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is_task = 1;
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//strcpy(server_host, SERVER_HOST);
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if(xTaskCreate(ssl_client, "ssl_client", STACKSIZE, NULL, tskIDLE_PRIORITY + 1, NULL) != pdPASS)
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printf("\n\r%s xTaskCreate failed", __FUNCTION__);
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}
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void do_ssl_connect(void)
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{
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int ret;
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static int success = 0;
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static int fail = 0;
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is_task = 0;
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strcpy(server_host, SERVER_HOST);
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ssl_client(&ret);
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if(ret != 0)
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printf("\n\r%s fail (success %d times, fail %d times)\n\r", __FUNCTION__, success, ++ fail);
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else
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printf("\n\r%s success (success %d times, fail %d times)\n\r", __FUNCTION__, ++ success, fail);
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}
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void cmd_ssl_client(int argc, char **argv)
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{
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if(argc == 2) {
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strcpy(server_host, argv[1]);
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#if SSL_USE_SRP
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strcpy(srp_username, "");
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strcpy(srp_password, "");
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#endif
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}
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#if SSL_USE_SRP
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else if(argc == 4) {
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strcpy(server_host, argv[1]);
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strcpy(srp_username, argv[2]);
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strcpy(srp_password, argv[3]);
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}
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#endif
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else {
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#if SSL_USE_SRP
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printf("\n\rUsage: %s SSL_SERVER_HOST [SRP_USER_NAME SRP_PASSWORD]", argv[0]);
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#else
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printf("\n\rUsage: %s SSL_SERVER_HOST", argv[0]);
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#endif
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return;
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}
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start_ssl_client();
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}
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