feat: Support using wolfSSL library
#include "lwip/netdb.h"
#include "lwip/dns.h"
+#if CONFIG_SSL_USING_WOLFSSL
+#include "lwip/apps/sntp.h"
+#endif
+
#include "esp_tls.h"
/* The examples use simple WiFi configuration that you can set via
@@ -123,11 +127,50 @@ static void initialise_wifi(void)
ESP_ERROR_CHECK( esp_wifi_start() );
}
+#if CONFIG_SSL_USING_WOLFSSL
+static void get_time()
+{
+ struct timeval now;
+ int sntp_retry_cnt = 0;
+ int sntp_retry_time = 0;
+
+ sntp_setoperatingmode(0);
+ sntp_setservername(0, "pool.ntp.org");
+ sntp_init();
+
+ while (1) {
+ for (int32_t i = 0; (i < (SNTP_RECV_TIMEOUT / 100)) && now.tv_sec < 1525952900; i++) {
+ vTaskDelay(100 / portTICK_RATE_MS);
+ gettimeofday(&now, NULL);
+ }
+
+ if (now.tv_sec < 1525952900) {
+ sntp_retry_time = SNTP_RECV_TIMEOUT << sntp_retry_cnt;
+
+ if (SNTP_RECV_TIMEOUT << (sntp_retry_cnt + 1) < SNTP_RETRY_TIMEOUT_MAX) {
+ sntp_retry_cnt ++;
+ }
+
+ printf("SNTP get time failed, retry after %d ms\n", sntp_retry_time);
+ vTaskDelay(sntp_retry_time / portTICK_RATE_MS);
+ } else {
+ printf("SNTP get time success\n");
+ break;
+ }
+ }
+}
+#endif
+
static void https_get_task(void *pvParameters)
{
char buf[512];
int ret, len;
+#if CONFIG_SSL_USING_WOLFSSL
+ /* CA date verification need system time */
+ get_time();
+#endif
+
while(1) {
/* Wait for the callback to set the CONNECTED_BIT in the
event group.
@@ -157,7 +200,13 @@ static void https_get_task(void *pvParameters)
if (ret >= 0) {
ESP_LOGI(TAG, "%d bytes written", ret);
written_bytes += ret;
- } else if (ret != MBEDTLS_ERR_SSL_WANT_READ && ret != MBEDTLS_ERR_SSL_WANT_WRITE) {
+ } else if
+#if CONFIG_SSL_USING_MBEDTLS
+ (ret != MBEDTLS_ERR_SSL_WANT_READ && ret != MBEDTLS_ERR_SSL_WANT_WRITE)
+#else
+ (ret != WOLFSSL_ERROR_WANT_READ && ret != WOLFSSL_ERROR_WANT_WRITE)
+#endif
+ {
ESP_LOGE(TAG, "esp_tls_conn_write returned 0x%x", ret);
goto exit;
}
@@ -171,7 +220,12 @@ static void https_get_task(void *pvParameters)
bzero(buf, sizeof(buf));
ret = esp_tls_conn_read(tls, (char *)buf, len);
- if(ret == MBEDTLS_ERR_SSL_WANT_WRITE || ret == MBEDTLS_ERR_SSL_WANT_READ)
+ if
+#if CONFIG_SSL_USING_MBEDTLS
+ (ret == MBEDTLS_ERR_SSL_WANT_WRITE || ret == MBEDTLS_ERR_SSL_WANT_READ)
+#else
+ (ret == WOLFSSL_ERROR_WANT_READ && ret == WOLFSSL_ERROR_WANT_WRITE)
+#endif
continue;
if(ret < 0)
