Heap optimization (#471)
* Remove duplicated include * Clear certificates just after handshake It can save up to 7k of heap
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@ -8,7 +8,6 @@
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#include "Arduino.h"
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#include <esp32-hal-log.h>
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#include <lwip/sockets.h>
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#include <lwip/err.h>
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#include <lwip/sockets.h>
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#include <lwip/sys.h>
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@ -181,6 +180,18 @@ int start_ssl_client(sslclient_context *ssl_client, uint32_t ipAddress, uint32_t
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} else {
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log_i("Certificate verified.");
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}
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if (rootCABuff != NULL) {
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mbedtls_x509_crt_free(&ssl_client->ca_cert);
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}
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if (cli_cert != NULL) {
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mbedtls_x509_crt_free(&ssl_client->client_cert);
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}
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if (cli_key != NULL) {
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mbedtls_pk_free(&ssl_client->client_key);
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}
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log_i("Free heap after TLS %u", xPortGetFreeHeapSize());
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@ -201,18 +212,6 @@ void stop_ssl_socket(sslclient_context *ssl_client, const char *rootCABuff, cons
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mbedtls_ssl_config_free(&ssl_client->ssl_conf);
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mbedtls_ctr_drbg_free(&ssl_client->drbg_ctx);
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mbedtls_entropy_free(&ssl_client->entropy_ctx);
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if (rootCABuff != NULL) {
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mbedtls_x509_crt_free(&ssl_client->ca_cert);
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}
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if (cli_cert != NULL) {
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mbedtls_x509_crt_free(&ssl_client->client_cert);
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}
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if (cli_key != NULL) {
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mbedtls_pk_free(&ssl_client->client_key);
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}
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}
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