add

RTL00_SDKV35a/component/common/example/ssl_download/example_ssl_download.c

@@ -0,0 +1,137 @@
+#include <FreeRTOS.h>
+#include <task.h>
+#include <platform/platform_stdlib.h>
+
+#include <lwip/sockets.h>
+#include <polarssl/config.h>
+#include <polarssl/memory.h>
+#include <polarssl/ssl.h>
+
+#define SERVER_HOST    "192.168.13.27"
+#define SERVER_PORT    443
+#define RESOURCE       "/dummy100k.bin"
+
+static unsigned int arc4random(void)
+{
+	unsigned int res = xTaskGetTickCount();
+	static unsigned int seed = 0xDEADB00B;
+
+	seed = ((seed & 0x007F00FF) << 7) ^
+		((seed & 0x0F80FF00) >> 8) ^ // be sure to stir those low bits
+		(res << 13) ^ (res >> 9);    // using the clock too!
+
+	return seed;
+}
+
+static void get_random_bytes(void *buf, size_t len)
+{
+	unsigned int ranbuf;
+	unsigned int *lp;
+	int i, count;
+	count = len / sizeof(unsigned int);
+	lp = (unsigned int *) buf;
+
+	for(i = 0; i < count; i ++) {
+		lp[i] = arc4random();  
+		len -= sizeof(unsigned int);
+	}
+
+	if(len > 0) {
+		ranbuf = arc4random();
+		memcpy(&lp[i], &ranbuf, len);
+	}
+}
+
+static int my_random(void *p_rng, unsigned char *output, size_t output_len)
+{
+	get_random_bytes(output, output_len);
+	return 0;
+}
+
+static void example_ssl_download_thread(void *param)
+{
+	int server_fd = -1, ret;
+	struct sockaddr_in server_addr;
+	ssl_context ssl;
+
+	// Delay to wait for IP by DHCP
+	vTaskDelay(10000);
+	printf("\nExample: SSL download\n");
+
+	memory_set_own(pvPortMalloc, vPortFree);
+	memset(&ssl, 0, sizeof(ssl_context));
+
+	if((ret = net_connect(&server_fd, SERVER_HOST, SERVER_PORT)) != 0) {
+		printf("ERROR: net_connect ret(%d)\n", ret);
+		goto exit;
+	}
+
+	if((ret = ssl_init(&ssl)) != 0) {
+		printf("ERRPR: ssl_init ret(%d)\n", ret);
+		goto exit;
+	}
+
+	ssl_set_endpoint(&ssl, SSL_IS_CLIENT);
+	ssl_set_authmode(&ssl, SSL_VERIFY_NONE);
+	ssl_set_rng(&ssl, my_random, NULL);
+	ssl_set_bio(&ssl, net_recv, &server_fd, net_send, &server_fd);
+
+	if((ret = ssl_handshake(&ssl)) != 0) {
+		printf("ERROR: ssl_handshake ret(-0x%x)", -ret);
+		goto exit;
+	}
+	else {
+		unsigned char buf[2048];
+		int read_size = 0, resource_size = 0, content_len = 0, header_removed = 0;
+
+		printf("SSL ciphersuite %s\n", ssl_get_ciphersuite(&ssl));
+		sprintf(buf, "GET %s HTTP/1.1\r\nHost: %s\r\n\r\n", RESOURCE, SERVER_HOST);
+		ssl_write(&ssl, buf, strlen(buf));
+
+		while((read_size = ssl_read(&ssl, buf, sizeof(buf))) > 0) {
+			if(header_removed == 0) {
+				char *header = strstr(buf, "\r\n\r\n");
+
+				if(header) {
+					char *body, *content_len_pos;
+
+					body = header + strlen("\r\n\r\n");
+					*(body - 2) = 0;
+					header_removed = 1;
+					printf("\nHTTP Header: %s\n", buf);
+					read_size = read_size - ((unsigned char *) body - buf);
+
+					content_len_pos = strstr(buf, "Content-Length: ");
+					if(content_len_pos) {
+						content_len_pos += strlen("Content-Length: ");
+						*(strstr(content_len_pos, "\r\n")) = 0;
+						content_len = atoi(content_len_pos);
+					}
+				}
+				else {
+					printf("ERROR: HTTP header\n");
+					goto exit;
+				}
+			}
+
+			printf("read resource %d bytes\n", read_size);
+			resource_size += read_size;
+		}
+
+		printf("final read size = %d bytes\n", read_size);
+		printf("http content-length = %d bytes, download resource size = %d bytes\n", content_len, resource_size);
+	}
+
+exit:
+	if(server_fd != -1)
+		net_close(server_fd);
+
+	ssl_free(&ssl);
+	vTaskDelete(NULL);
+}
+
+void example_ssl_download(void)
+{
+	if(xTaskCreate(example_ssl_download_thread, ((const char*)"example_ssl_download_thread"), 2048, NULL, tskIDLE_PRIORITY + 1, NULL) != pdPASS)
+		printf("\n\r%s xTaskCreate(init_thread) failed", __FUNCTION__);
+}

RTL00_SDKV35a/component/common/example/ssl_download/example_ssl_download.h

@@ -0,0 +1,6 @@
+#ifndef EXAMPLE_SSL_DOWNLOAD_H
+#define EXAMPLE_SSL_DOWNLOAD_H
+
+void example_ssl_download(void);
+
+#endif /* EXAMPLE_SSL_DOWNLOAD_H */

RTL00_SDKV35a/component/common/example/ssl_download/readme.txt

@@ -0,0 +1,16 @@
+SSL DOWNLOAD EXAMPLE
+
+Description:
+Download file from Web server via https.
+
+Configuration:
+Modify SSL_MAX_CONTENT_LEN in SSL config and configTOTAL_HEAP_SIZE in freertos config for large size file
+Modify SERVER_HOST, SERVER_PORT and RESOURCE in example_ssl_download.c based on your SSL server
+
+[platform_opts.h]
+    #define CONFIG_EXAMPLE_SSL_DOWNLOAD    1
+
+Execution:
+Can make automatical Wi-Fi connection when booting by using wlan fast connect example.
+A ssl download example thread will be started automatically when booting.
+