| # Enable DTLS with Connection Identifier |
| CONFIG_LWM2M_DTLS_SUPPORT=y |
| CONFIG_LWM2M_DTLS_CID=y |
| CONFIG_LWM2M_PEER_PORT=5684 |
| |
| # Select Zephyr mbedtls |
| CONFIG_MBEDTLS=y |
| CONFIG_MBEDTLS_TLS_VERSION_1_2=y |
| CONFIG_MBEDTLS_SSL_DTLS_CONNECTION_ID=y |
| |
| # Special MbedTLS changes |
| CONFIG_MBEDTLS_ENABLE_HEAP=y |
| CONFIG_MBEDTLS_HEAP_SIZE=8192 |
| CONFIG_MBEDTLS_SSL_MAX_CONTENT_LEN=1500 |
| CONFIG_MBEDTLS_CIPHER_CCM_ENABLED=y |
| |
| # Disable RSA, we don't parse certs: saves flash/memory |
| CONFIG_MBEDTLS_KEY_EXCHANGE_RSA_ENABLED=n |
| # Enable PSK instead |
| CONFIG_MBEDTLS_KEY_EXCHANGE_PSK_ENABLED=y |
| |
| CONFIG_NET_SOCKETS_SOCKOPT_TLS=y |
| CONFIG_NET_SOCKETS_TLS_MAX_CONTEXTS=4 |
| CONFIG_NET_SOCKETS_ENABLE_DTLS=y |
| |
| # MbedTLS needs a larger stack |
| CONFIG_MAIN_STACK_SIZE=2048 |
| CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=2048 |
| |
| # This has to be match length of LWM2M_APP_ID and if LWM2M_APP_ID is empty, |
| # then this has to be match length of CONFIG_BOARD. Default 16 is not enough |
| # for some boards, so, increase it to 32. |
| CONFIG_LWM2M_SECURITY_KEY_SIZE=32 |
