samples: lwm2m: add support for DTLS (100f8273) · Commits · Wenxi XU / zephyr

samples/net/lwm2m_client/CMakeLists.txt

+2 −1

Original line number	Diff line number	Diff line
		include($ENV{ZEPHYR_BASE}/cmake/app/boilerplate.cmake NO_POLICY_SCOPE)
		project(NONE)


		FILE(GLOB app_sources src/*.c)
		target_sources(app PRIVATE ${app_sources})

		include($ENV{ZEPHYR_BASE}/samples/net/common/common.cmake)

		target_link_libraries_ifdef(CONFIG_MBEDTLS app mbedTLS)

samples/net/lwm2m_client/prj_dtls.conf

0 → 100644

+48 −0

Original line number	Diff line number	Diff line
		CONFIG_NETWORKING=y
		CONFIG_NET_LOG=y
		CONFIG_NET_BUF_LOG=y
		CONFIG_SYS_LOG_NET_LEVEL=4
		CONFIG_SYS_LOG_NET_BUF_LEVEL=2
		CONFIG_SYS_LOG_LWM2M_LEVEL=4
		CONFIG_TEST_RANDOM_GENERATOR=y
		CONFIG_NET_IPV6=y
		CONFIG_NET_IF_UNICAST_IPV6_ADDR_COUNT=3
		CONFIG_NET_IF_MCAST_IPV6_ADDR_COUNT=2
		CONFIG_NET_IPV4=y
		CONFIG_NET_DHCPV4=n
		CONFIG_NET_IF_UNICAST_IPV4_ADDR_COUNT=3
		CONFIG_NET_IF_MCAST_IPV4_ADDR_COUNT=2
		CONFIG_SYS_LOG_SHOW_COLOR=y
		CONFIG_INIT_STACKS=y
		CONFIG_PRINTK=y
		CONFIG_NET_STATISTICS=y
		CONFIG_NET_PKT_RX_COUNT=10
		CONFIG_NET_PKT_TX_COUNT=10
		CONFIG_NET_BUF_RX_COUNT=10
		CONFIG_NET_BUF_TX_COUNT=10
		CONFIG_NET_MAX_CONTEXTS=5
		# CONFIG_NET_CONTEXT_NET_PKT_POOL is not set

		CONFIG_NET_SHELL=y

		CONFIG_NET_APP_NEED_IPV6=y
		CONFIG_NET_APP_NEED_IPV4=y
		CONFIG_NET_APP_SETTINGS=y
		CONFIG_NET_APP_DTLS=y

		CONFIG_MBEDTLS=y
		CONFIG_MBEDTLS_BUILTIN=y
		CONFIG_MBEDTLS_ENABLE_HEAP=y
		CONFIG_MBEDTLS_HEAP_SIZE=8192
		CONFIG_MBEDTLS_CFG_FILE="config-coap.h"

		CONFIG_LWM2M=y
		CONFIG_LWM2M_PEER_PORT=5684
		CONFIG_LWM2M_IPSO_SUPPORT=y
		CONFIG_LWM2M_IPSO_TEMP_SENSOR=y
		CONFIG_LWM2M_IPSO_LIGHT_CONTROL=y

		CONFIG_NET_APP_MY_IPV6_ADDR="2001:db8::1"
		CONFIG_NET_APP_PEER_IPV6_ADDR="2001:db8::2"
		CONFIG_NET_APP_MY_IPV4_ADDR="192.0.2.1"
		CONFIG_NET_APP_PEER_IPV4_ADDR="192.0.2.2"

samples/net/lwm2m_client/src/lwm2m-client.c

+44 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (c) 2017 Linaro Limited
		* Copyright (c) 2017 Open Source Foundries Limited.
		*
		* SPDX-License-Identifier: Apache-2.0
		*/
		@@ -54,6 +55,36 @@ static struct device *led_dev;
		static u32_t led_state;

		static struct lwm2m_ctx client;

		#if defined(CONFIG_NET_APP_DTLS)
		#if !defined(CONFIG_NET_APP_TLS_STACK_SIZE)
		#define CONFIG_NET_APP_TLS_STACK_SIZE 30000
		#endif /* CONFIG_NET_APP_TLS_STACK_SIZE */

		#define HOSTNAME "localhost" /* for cert verification if that is enabled */

		/* The result buf size is set to large enough so that we can receive max size
		* buf back. Note that mbedtls needs also be configured to have equal size
		* value for its buffer size. See MBEDTLS_SSL_MAX_CONTENT_LEN option in DTLS
		* config file.
		*/
		#define RESULT_BUF_SIZE 1500

		NET_APP_TLS_POOL_DEFINE(dtls_pool, 10);

		/* "000102030405060708090a0b0c0d0e0f" */
		static unsigned char client_psk[] = {
		0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
		0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f
		};

		static const char client_psk_id[] = "Client_identity";

		static u8_t dtls_result[RESULT_BUF_SIZE];
		NET_STACK_DEFINE(NET_APP_DTLS, net_app_dtls_stack,
		CONFIG_NET_APP_TLS_STACK_SIZE, CONFIG_NET_APP_TLS_STACK_SIZE);
		#endif /* CONFIG_NET_APP_DTLS */

		static struct k_sem quit_lock;

		#if defined(CONFIG_LWM2M_FIRMWARE_UPDATE_OBJ_SUPPORT)
		@@ -319,6 +350,19 @@ void main(void)
		client.data_pool = data_udp_pool;
		#endif

		#if defined(CONFIG_NET_APP_DTLS)
		client.client_psk = client_psk;
		client.client_psk_len = 16;
		client.client_psk_id = (char *)client_psk_id;
		client.client_psk_id_len = strlen(client_psk_id);
		client.cert_host = HOSTNAME;
		client.dtls_pool = &dtls_pool;
		client.dtls_result_buf = dtls_result;
		client.dtls_result_buf_len = RESULT_BUF_SIZE;
		client.dtls_stack = net_app_dtls_stack;
		client.dtls_stack_len = K_THREAD_STACK_SIZEOF(net_app_dtls_stack);
		#endif /* CONFIG_NET_APP_DTLS */

		#if defined(CONFIG_NET_IPV6)
		ret = lwm2m_rd_client_start(&client, CONFIG_NET_APP_PEER_IPV6_ADDR,
		CONFIG_LWM2M_PEER_PORT, CONFIG_BOARD,

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