esp-idf/examples/protocols
Aditya Patwardhan 3b71bd7326 mbedtls-3.0: Fixed ESP32 build issues
- Added MBEDLTS_PRIVATE(...) wherever necessary
- For functions like mbedtls_pk_parse_key(...), it is necessary to pass the RNG function
  pointers as parameter. Solved for dependent components: wpa_supplicant & openSSL
- For libcoap, the SSLv2 ClientHello handshake method has been deprecated, need to handle this.
  Currently, corresponding snippet has been commented.
- Examples tested: hello-world | https_request | wifi_prov_mgr

mbedtls-3.0: Fixed ESP32-C3 & ESP32-S3 build issues
- Removed MBEDTLS_DEPRECATED_REMOVED macro from sha1 port
- DS peripheral: esp_ds_rsa_sign -> removed unsused 'mode' argument
- Added MBEDTLS_PRIVATE(...) wherever required

mbedtls-3.0: Fixed ESP32-S2 build issues
- Fixed outdated function prototypes and usage in mbedlts/port/aes/esp_aes_gcm.c due to changes in GCM module

mbedtls-3.0: Fixed ESP32-H2 build issues

ci: Fixing build stage
- Added MBEDTLS_PRIVATE(...) wherever required
- Added RNG function parameter
- Updated GCM Module changes
- Updated Copyright notices

- Tests:
- build_esp_idf_tests_cmake_esp32
- build_esp_idf_tests_cmake_esp32s2
- build_esp_idf_tests_cmake_esp32c3
- build_esp_idf_tests_cmake_esp32s3

ci: Fixing build stage (mbedtls-related changes)
- Added MBEDTLS_PRIVATE(...) wherever required
- Updated SHAXXX functions
- Updated esp_config according to mbedtls changes

- Tests:
- build_examples_cmake_esp32
- build_examples_cmake_esp32s2
- build_examples_cmake_esp32c3
- build_examples_cmake_esp32s3

ci: Fixing build stage (example-related changes)
- Added MBEDTLS_PRIVATE(...) wherever required
- Updated SHAXXX functions
- Updated esp_config according to mbedtls changes

- Tests:
- build_examples_cmake_esp32
- build_examples_cmake_esp32s2
- build_examples_cmake_esp32c3
- build_examples_cmake_esp32s3

ci: Fixing target_test stage
- Updated test SSL version to TLS_v1_2

- Tests:
- example_test_protocols 1/2

ci: Fixing build stage
- Added checks for MBEDTLS_DHM_C (disabled by default)
- Updated esp_cryptoauthlib submodule
- Updated factory partition size for legacy BLE provisioning example

- Tests:
- build_examples_cmake_esp32
- build_examples_cmake_esp32s2
- build_examples_cmake_esp32c3
- build_examples_cmake_esp32s3

Co-authored-by: Laukik Hase <laukik.hase@espressif.com>
2022-03-03 01:37:10 +05:30
..
asio EXAMPLES/ASIO: Adds a SOCKS4 example 2022-03-01 13:50:47 +00:00
cbor other: Move cbor, jsmn and libsodium to idf-component-manager 2021-11-30 21:44:48 +01:00
coap_client Push out coap to idf-extra-component repository 2022-02-23 15:08:36 +05:30
coap_server Push out coap to idf-extra-component repository 2022-02-23 15:08:36 +05:30
esp_http_client examples/esp_http_client: Use dl.espressif.com URL for performing request with Range header 2022-02-25 10:29:17 +05:30
esp_local_ctrl esp_https_server: API cleanup 2022-02-14 16:25:54 +05:30
http2_request examples: add sh2lib dependency on http2_request through component manager 2022-01-11 10:26:25 +05:30
http_request Build & config: Remove leftover files from the unsupported "make" build system 2021-11-11 15:32:36 +01:00
http_server docs: Add user-friendly guide about how to use ws_server_example_test.py 2022-01-02 11:27:05 +00:00
https_mbedtls mbedtls-3 update: 2022-03-03 01:37:10 +05:30
https_request esp-tls: mark esp_tls_conn_delete API as deprecated 2022-01-04 15:40:07 +05:30
https_server mbedtls-3.0: Fixed ESP32 build issues 2022-03-03 01:37:10 +05:30
https_x509_bundle esp-tls: mark esp_tls_conn_delete API as deprecated 2022-01-04 15:40:07 +05:30
icmp_echo Build & config: Remove leftover files from the unsupported "make" build system 2021-11-11 15:32:36 +01:00
mdns ci/mdsn: Fix example test on ethernet runners 2022-02-24 11:01:26 +01:00
modbus freertos: Remove legacy data types 2022-02-09 23:05:45 +08:00
mqtt configure_ds.py: Fix the error for prod mode. They script now only verifies the purpose in the prod mode. 2022-01-31 14:13:25 +05:30
slip/slip_udp G0: target component (components/esp32*) doesn't depend on driver anymore 2022-03-02 04:21:00 +00:00
smtp_client mbedtls-3 update: 2022-03-03 01:37:10 +05:30
sntp esp_timer: remove legacy ESP32 FRC timer implementation. 2022-02-10 15:17:49 +08:00
sockets freertos: Remove legacy data types 2022-02-09 23:05:45 +08:00
static_ip Build & config: Remove leftover files from the unsupported "make" build system 2021-11-11 15:32:36 +01:00
websocket freertos: Remove legacy data types 2022-02-09 23:05:45 +08:00
README.md examples: common connect component to use both interfaces at once 2020-05-18 09:26:24 +02:00

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 and/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, Ethernet or both connections, open the project configuration menu (idf.py menuconfig) and navigate to "Example Connection Configuration" menu. Select either "Wi-Fi" or "Ethernet" or both 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.