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Heap optimization #471

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Merged
merged 2 commits into from
Jun 29, 2017
Merged

Heap optimization #471

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2a80298
Remove duplicated include
copercini Jun 28, 2017
724fbc7
Clear certificates just after handshake
copercini Jun 28, 2017
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25 changes: 12 additions & 13 deletions libraries/WiFiClientSecure/src/ssl_client.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,6 @@

#include "Arduino.h"
#include <esp32-hal-log.h>
#include <lwip/sockets.h>
#include <lwip/err.h>
#include <lwip/sockets.h>
#include <lwip/sys.h>
Expand Down Expand Up @@ -181,6 +180,18 @@ int start_ssl_client(sslclient_context *ssl_client, uint32_t ipAddress, uint32_t
} else {
log_i("Certificate verified.");
}

if (rootCABuff != NULL) {
mbedtls_x509_crt_free(&ssl_client->ca_cert);
}

if (cli_cert != NULL) {
mbedtls_x509_crt_free(&ssl_client->client_cert);
}

if (cli_key != NULL) {
mbedtls_pk_free(&ssl_client->client_key);
}

log_i("Free heap after TLS %u", xPortGetFreeHeapSize());

Expand All @@ -201,18 +212,6 @@ void stop_ssl_socket(sslclient_context *ssl_client, const char *rootCABuff, cons
mbedtls_ssl_config_free(&ssl_client->ssl_conf);
mbedtls_ctr_drbg_free(&ssl_client->drbg_ctx);
mbedtls_entropy_free(&ssl_client->entropy_ctx);

if (rootCABuff != NULL) {
mbedtls_x509_crt_free(&ssl_client->ca_cert);
}

if (cli_cert != NULL) {
mbedtls_x509_crt_free(&ssl_client->client_cert);
}

if (cli_key != NULL) {
mbedtls_pk_free(&ssl_client->client_key);
}
}


Expand Down