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[dtls] fix allocation and deallocation of ssl cookies (#4564)

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This commit is contained in:
Matteo Paris
2020-02-27 20:19:40 -08:00
committed by GitHub
parent a613ff0ee4
commit 904719079d
1 changed files with 5 additions and 4 deletions
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src/core/meshcop/dtls.cpp
+5 -4
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@@ -109,7 +109,7 @@ Dtls::Dtls(Instance &aInstance, bool aLayerTwoSecurity)
void Dtls::FreeMbedtls(void)
{
#ifdef MBEDTLS_SSL_COOKIE_C
#if defined(MBEDTLS_SSL_SRV_C) && defined(MBEDTLS_SSL_COOKIE_C)
mbedtls_ssl_cookie_free(&mCookieCtx);
#endif
#if OPENTHREAD_CONFIG_COAP_SECURE_API_ENABLE
@@ -259,6 +259,9 @@ otError Dtls::Setup(bool aClient)
mbedtls_pk_init(&mPrivateKey);
#endif // MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED
#endif // OPENTHREAD_CONFIG_COAP_SECURE_API_ENABLE
#if defined(MBEDTLS_SSL_SRV_C) && defined(MBEDTLS_SSL_COOKIE_C)
mbedtls_ssl_cookie_init(&mCookieCtx);
#endif
rval = mbedtls_ssl_config_defaults(&mConf, aClient ? MBEDTLS_SSL_IS_CLIENT : MBEDTLS_SSL_IS_SERVER,
MBEDTLS_SSL_TRANSPORT_DATAGRAM, MBEDTLS_SSL_PRESET_DEFAULT);
@@ -287,11 +290,9 @@ otError Dtls::Setup(bool aClient)
mbedtls_ssl_conf_handshake_timeout(&mConf, 8000, 60000);
mbedtls_ssl_conf_dbg(&mConf, HandleMbedtlsDebug, this);
#ifdef MBEDTLS_SSL_SRV_C
#if defined(MBEDTLS_SSL_SRV_C) && defined(MBEDTLS_SSL_COOKIE_C)
if (!aClient)
{
mbedtls_ssl_cookie_init(&mCookieCtx);
rval = mbedtls_ssl_cookie_setup(&mCookieCtx, mbedtls_ctr_drbg_random, Random::Crypto::MbedTlsContextGet());
VerifyOrExit(rval == 0);