1aaec808da
This update supports DTLS, TLS is a future TODO components/coap/CMakeLists.txt: components/coap/component.mk: Add in the new files that have to be built Replace libcoap/src/coap_notls.c with libcoap/src/coap_mbedtls.c components/coap/libcoap: Update the version to include the current version for supporting MbedTLS components/coap/port/coap_debug.c: components/coap/port/coap_mbedtls.c: components/coap/port/include/coap/coap_dtls.h: New port files for DTLS components/coap/port/include/coap_config_posix.h: Include building with MbedTLS examples/protocols/coap_client/README.md: examples/protocols/coap_client/main/CMakeLists.txt: examples/protocols/coap_client/main/Kconfig.projbuild: examples/protocols/coap_client/main/coap_client_example_main.c: examples/protocols/coap_client/main/component.mk: Update CoAP client to support DTLS examples/protocols/coap_client/main/coap_ca.pem examples/protocols/coap_client/main/coap_client.crt examples/protocols/coap_client/main/coap_client.key New PKI Certs for CoAP client (copied from wpa2_enterprise example) examples/protocols/coap_server/README.md: examples/protocols/coap_server/main/CMakeLists.txt: examples/protocols/coap_server/main/Kconfig.projbuild: examples/protocols/coap_server/main/coap_server_example_main.c: examples/protocols/coap_server/main/component.mk: Update CoAP server to support DTLS Change "no data" to "Hello World!" to prevent confusion examples/protocols/coap_server/main/coap_ca.pem examples/protocols/coap_server/main/coap_server.crt examples/protocols/coap_server/main/coap_server.key New PKI Certs for CoAP server (copied from wpa2_enterprise example) Closes https://github.com/espressif/esp-idf/pull/3345 Closes https://github.com/espressif/esp-idf/issues/1379 |
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|---|---|---|
| .. | ||
| asio | ||
| coap_client | ||
| coap_server | ||
| esp_http_client | ||
| esp_local_ctrl | ||
| http2_request | ||
| http_request | ||
| http_server | ||
| https_mbedtls | ||
| https_request | ||
| https_server | ||
| mdns | ||
| modbus_master | ||
| modbus_slave | ||
| mqtt | ||
| openssl_client | ||
| openssl_server | ||
| pppos_client | ||
| sntp | ||
| sockets | ||
| websocket | ||
| README.md | ||
Protocols Examples
Implementation of internet communication protocols and services.
See the README.md file in the upper level examples directory for more information about examples.
Establishing Wi-Fi or Ethernet Connection
About the example_connect() Function
Protocols examples use a simple helper function, example_connect(), to establish Wi-Fi or Ethernet connection. This function is implemented in examples/common_components/protocol_examples/common/connect.c, and has a very simple behavior: block until connection is established and IP address is obtained, then return. This function is used to reduce the amount of boilerplate and to keep the example code focused on the protocol or library being demonstrated.
The simple example_connect() function does not handle timeouts, does not gracefully handle various error conditions, and is only suited for use in examples. When developing real applications, this helper function needs to be replaced with full Wi-Fi / Ethernet connection handling code. Such code can be found in examples/wifi/getting_started/ and examples/ethernet/basic/ examples.
Configuring the Example
To configure the example to use Wi-Fi or Ethernet connection, open the project configuration menu (idf.py menuconfig) and navigate to "Example Connection Configuration" menu. Select either "Wi-Fi" or "Ethernet" in the "Connect using" choice.
When connecting using Wi-Fi, enter SSID and password of your Wi-Fi access point into the corresponding fields. If connecting to an open Wi-Fi network, keep the password field empty.
When connecting using Ethernet, set up PHY type and configuration in the provided fields. If using Ethernet for the first time, it is recommended to start with the Ethernet example readme, which contains instructions for connecting and configuring the PHY. Once Ethernet example obtains IP address successfully, proceed to the protocols example and set the same configuration options.
Disabling IPv6
By default, example_connect() function waits until Wi-Fi or Ethernet connection is established, and IPv4 address and IPv6 link-local address are obtained. In network environments where IPv6 link-local address cannot be obtained, disable "Obtain IPv6 link-local address" option found in "Example Connection Configuration" menu.