CONFIG_NETWORKING=y
CONFIG_LOG=y
CONFIG_TEST_RANDOM_GENERATOR=y
CONFIG_NET_IPV4=y
CONFIG_NET_IPV6=n
CONFIG_NET_DHCPV4=n
CONFIG_NET_PKT_RX_COUNT=4
CONFIG_NET_PKT_TX_COUNT=4
CONFIG_NET_BUF_RX_COUNT=8
CONFIG_NET_BUF_TX_COUNT=8
CONFIG_NET_MAX_CONTEXTS=4
CONFIG_NET_CONFIG_MY_IPV4_ADDR="192.0.2.1"
CONFIG_NET_CONFIG_MY_IPV4_GW="192.0.2.2"
CONFIG_NET_CONFIG_NEED_IPV4=y
CONFIG_NET_CONFIG_SETTINGS=y

CONFIG_LWM2M=y
CONFIG_LWM2M_IPSO_SUPPORT=y
CONFIG_LWM2M_SHELL=y

#Enable Portfolio object
CONFIG_LWM2M_PORTFOLIO_OBJ_SUPPORT=y

#LwM2M v1.1 configure
CONFIG_LWM2M_VERSION_1_1=y
CONFIG_LWM2M_DTLS_SUPPORT=y
CONFIG_LWM2M_RD_CLIENT_SUPPORT_BOOTSTRAP=y

#Enable SenML JSON content format
CONFIG_JSON_LIBRARY=y
CONFIG_BASE64=y
CONFIG_LWM2M_RW_SENML_JSON_SUPPORT=y

#Enable SenML CBOR content format
CONFIG_LWM2M_RW_SENML_CBOR_SUPPORT=y
CONFIG_LWM2M_RW_SENML_CBOR_RECORDS=40
CONFIG_ZCBOR_CANONICAL=y

#Enable legacy content formats
CONFIG_LWM2M_RW_JSON_SUPPORT=y
CONFIG_LWM2M_RW_OMA_TLV_SUPPORT=y

# Longer endpoint name might be returned in a registration reply
CONFIG_COAP_EXTENDED_OPTIONS_LEN=y
CONFIG_COAP_EXTENDED_OPTIONS_LEN_VALUE=40

# Use QUEUE mode by default
CONFIG_LWM2M_QUEUE_MODE_ENABLED=y
CONFIG_LWM2M_QUEUE_MODE_UPTIME=20
CONFIG_LWM2M_UPDATE_PERIOD=30
CONFIG_LWM2M_RD_CLIENT_STOP_POLLING_AT_IDLE=y

# LwM2M configuration as OMA-ETS-LightweightM2M_INT-V1_1-20190912-D Configuration 3
CONFIG_LWM2M_ENGINE_DEFAULT_LIFETIME=30
CONFIG_LWM2M_SERVER_DEFAULT_PMIN=1
CONFIG_LWM2M_SERVER_DEFAULT_PMAX=10

CONFIG_MBEDTLS=y
CONFIG_MBEDTLS_TLS_VERSION_1_2=y

# Special MbedTLS changes
CONFIG_MBEDTLS_ENABLE_HEAP=y
# MTU - IPv6 header - UDP header - DTLS header
# 1280 - 40 - 8 - 21
CONFIG_MBEDTLS_SSL_MAX_CONTENT_LEN=1211
CONFIG_MBEDTLS_HEAP_SIZE=7168
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_LWM2M_SECURITY_DTLS_TLS_CIPHERSUITE_MAX=3

CONFIG_NET_SOCKETS_SOCKOPT_TLS=y
# For testing purposes, limit DTLS contexts to one,
# LwM2M engine should not use more than one on any given time.
CONFIG_NET_SOCKETS_TLS_MAX_CONTEXTS=1
CONFIG_NET_SOCKETS_ENABLE_DTLS=y
CONFIG_MBEDTLS_SSL_DTLS_CONNECTION_ID=y

# Assume that IPv6 minimum MTU is accepted
# MTU - IPv6 header - UDP header - DTLS header - CoAP header room
# 1280 - 40 - 8 - 21 - 48
CONFIG_LWM2M_COAP_MAX_MSG_SIZE=1163
CONFIG_LWM2M_COAP_BLOCK_SIZE=1024
CONFIG_LWM2M_COAP_BLOCK_TRANSFER=y
CONFIG_LWM2M_COAP_ENCODE_BUFFER_SIZE=4096
CONFIG_LWM2M_NUM_OUTPUT_BLOCK_CONTEXT=1
CONFIG_LWM2M_NUM_BLOCK1_CONTEXT=1
CONFIG_SYS_HASH_FUNC32=y
CONFIG_LWM2M_ENGINE_VALIDATION_BUFFER_SIZE=0
CONFIG_LWM2M_ENGINE_MAX_PENDING=2
CONFIG_LWM2M_ENGINE_MAX_REPLIES=2
CONFIG_LWM2M_ENGINE_MAX_MESSAGES=3
CONFIG_LWM2M_ENGINE_MAX_OBSERVER=5
CONFIG_LWM2M_DEVICE_PWRSRC_MAX=2
CONFIG_LWM2M_DEVICE_ERROR_CODE_MAX=2
CONFIG_LWM2M_DEVICE_EXT_DEV_INFO_MAX=2
CONFIG_LWM2M_NUM_ATTR=20

# Configure stack sizes
CONFIG_MAIN_STACK_SIZE=1024
CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=512
CONFIG_SHELL_STACK_SIZE=1536
CONFIG_LWM2M_ENGINE_STACK_SIZE=2048