Update Espressif Examples

Author: gojimmypi

IDE/Espressif/ESP-IDF/README.md

@@ -1,11 +1,12 @@
 # ESP-IDF Port
 
 These Espressif examples have been created and tested with the latest stable release branch of
-[ESP-IDF V5.2](https://docs.espressif.com/projects/esp-idf/en/release-v5.2/esp32/get-started/index.html).
+ESP-IDF v5.2, v5.3 and the master branch
+
 The prior version 4.4 ESP-IDF is still supported, however version 5.2 or greater is recommended.
-Espressif has [a list of all ESP-IDF versions](https://docs.espressif.com/projects/esp-idf/en/latest/esp32/versions.html).
+Espressif has [a list of all ESP-IDF versions](Espressifversions.html).
 
-See the latest [Espressif Migration Guides](https://docs.espressif.com/projects/esp-idf/en/latest/esp32/migration-guides/index.html).
+See the latest Espressif Migration Guides.
 
 ## Examples
 
@@ -34,7 +35,7 @@ looks for the wolfSSL `user_settings.h` in the project as described below.
 ### File: `sdkconfig.h`
 
 The Espressif `sdkconfig.h`, generated automatically from your `sdkconfig`
-file at [build](https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-guides/build-system.html)
+file at [build](Espressif api-guides/build-system.html)
 time, should be included before any other files.
 
 ### File: `user_settings.h`
@@ -101,7 +102,7 @@ of your source code, particularly before the `#include <wolfssl/wolfcrypt/settin
 
 ## Requirements
 
- 1. [ESP-IDF development framework](https://docs.espressif.com/projects/esp-idf/en/latest/get-started/)
+ 1. [ESP-IDF development framework](https://github.com/espressif/esp-idf)
 
 ## wolfSSL as an Espressif component
 
@@ -113,7 +114,7 @@ There are various methods available for using wolfSSL as a component:
 
 ## Espressif Managed Components
 
-Visit https://components.espressif.com/components/wolfssl/wolfssl and see the instructions. Typically:
+Visit https://www.wolfssl.com/wolfssl-now-available-in-espressif-component-registry/ and see the instructions. Typically:
 
 ```
 idf.py add-dependency "wolfssl/wolfssl^5.6.0-stable"
@@ -144,6 +145,14 @@ This is an alternate method for installation. It is recommended to use the new `
  2. Find Wolfssl files at _/path/to/esp_`/esp-idf/components/wolfssl/`
  3. Find [Example Programs](https://github.com/wolfSSL/wolfssl/tree/master/IDE/Espressif/ESP-IDF/examples) under _/path/to/esp_`/esp-idf/examples/protocols/wolfssl_xxx` (where xxx is the project name)
 
+
+```
+WRK_IDF_PATH=/mnt/c/SysGCC/esp32/esp-idf/v5.2
+. $WRK_IDF_PATH/export.sh
+
+./setup.sh
+```
+
 ## Setup for Windows
 
 This is an alternate method for installation. It is recommended to use the new `CMakeLists.txt` to point to wolfSSL source code.
@@ -188,8 +197,8 @@ C:\SysGCC\esp32\esp-idf>git clone -b v5.0.2 --recursive https://github.com/espre
    - Microsoft Windows 10 Pro 10.0.19041 / Windows 11 Pro 22H2 22621.2715
    - Visual Studio 2022 17.7.6 with VisualGDB 5.6R9 (build 4777)
    - WSL 1 Ubuntu 22.04.3 LTS
-   - ESP-IDF: ESP-IDF v5.1
-   - SoC Module : all those supported in ESP-IDF v5.1
+   - ESP-IDF: ESP-IDF v5.2
+   - SoC Module : all those supported in ESP-IDF v5.2
 
 ## JTAG Debugging Notes
 
@@ -226,3 +235,15 @@ ftdi layout_signal nSRST -data 0x0020
 reset_config srst_push_pull trst_push_pull
 
 ```
+
+## Windows long paths
+
+Check "Long Paths Enabled" in Windows registry.
+
+Please set registry HKLM\SYSTEM\CurrentControlSet\Control\FileSystem\LongPathsEnabled to 1.
+
+The operation requires Administrator privileges. Command:
+
+```powershell
+powershell -Command "&{ Start-Process -FilePath reg 'ADD HKLM\SYSTEM\CurrentControlSet\Control\FileSystem /v LongPathsEnabled /t REG_DWORD /d 1 /f' -Verb runAs}"
+```

IDE/Espressif/ESP-IDF/README_32se.md

@@ -10,7 +10,7 @@ Including the following examples:
  The `user_settings.h` file enables some of the hardened settings.
 
 ## Requirements
-1. ESP-IDF development framework: https://docs.espressif.com/projects/esp-idf/en/latest/get-started/
+1. ESP-IDF development framework: https://github.com/espressif/esp-idf
 
 2. Microchip CryptoAuthentication Library: https://github.com/MicrochipTech/cryptoauthlib
 

IDE/Espressif/ESP-IDF/examples/README.md

@@ -78,7 +78,7 @@ wolfSSL to be installed.
 If you want to install wolfSSL, see the setup for [wolfSSL](https://github.com/wolfSSL/wolfssl/tree/master/IDE/Espressif/ESP-IDF#setup-for-linux)
 and [wolfSSH](https://github.com/wolfSSL/wolfssh/tree/master/ide/Espressif#setup-for-linux).
 
-The [Espressif Managed Component for wolfSSL](https://components.espressif.com/components/wolfssl/wolfssl)
+The [Espressif Managed Component for wolfSSL](https://www.wolfssl.com/wolfssl-now-available-in-espressif-component-registry/)
 also installs source code locally, instead of pointing to a source repository.
 
 ## VisualGDB
@@ -114,7 +114,4 @@ It may be helpful to also delete the `sdkconfig` file. (Save a backup if you've
 
 - esp32.com: [GPIO6,GPIO7,GPIO8,and GPIO9 changed for ESP32-WROOM-32E](https://esp32.com/viewtopic.php?t=29058)
 
-See also [this ESP-FAQ Handbook](https://docs.espressif.com/projects/esp-faq/en/latest/esp-faq-en-master.pdf).
-
-
-
+See also the `ESP-FAQ Handbook`.

IDE/Espressif/ESP-IDF/examples/template/CMakeLists.txt

@@ -1,12 +1,12 @@
 # wolfSSL Espressif Example Project CMakeLists.txt
-#   v1.2
+#   v1.3
 #
 # The following lines of boilerplate have to be in your project's
 # CMakeLists in this exact order for cmake to work correctly
 cmake_minimum_required(VERSION 3.16)
 
 # Optional no watchdog typically used for test & benchmark
-# add_compile_options(-DWOLFSSL_ESP_NO_WATCHDOG=1)
+add_compile_options(-DWOLFSSL_ESP_NO_WATCHDOG=1)
 
 # The wolfSSL CMake file should be able to find the source code.
 # Otherwise, assign an environment variable or set it here:
@@ -71,6 +71,10 @@ else()
     message(STATUS "No conflicting wolfSSL components found.")
 endif()
 
+# Ensure the this wolfSSL component directory is included
+set(WOLFSSL_PATH "${CMAKE_HOME_DIRECTORY}/components/wolfssl")
+list(APPEND EXTRA_COMPONENT_DIRS ${WOLFSSL_PATH})
+
 # Not only is a project-level "set(COMPONENTS" not needed here, this will cause
 # an unintuitive error about  Unknown CMake command "esptool_py_flash_project_args".
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)

IDE/Espressif/ESP-IDF/examples/template/README.md

@@ -7,7 +7,7 @@ For general information on [wolfSSL examples for Espressif](../README.md), see t
 
 ### Prerequisites
 
-It is assumed the [ESP-IDF environment](https://docs.espressif.com/projects/esp-idf/en/latest/esp32/get-started/) has been installed.
+It is assumed the [ESP-IDF environment](Espressifget-started/) has been installed.
 
 ### Files Included
 
@@ -19,7 +19,7 @@ It is assumed the [ESP-IDF environment](https://docs.espressif.com/projects/esp-
 
 - The [components/wolfssl/CMakeLists.txt](./components/wolfssl/CMakeLists.txt) typically does not need to be changed.
 
-- Optional [VisualGDB Project](./VisualGDB/wolfssl_template_IDF_v5.1_ESP32.vgdbproj) for Visual Studio using ESP32 and ESP-IDF v5.1.
+- Optional [VisualGDB Project](./VisualGDB/README.md) for Visual Studio using ESP32 and ESP-IDF v5.2. See also [template](../template/VisualGDB/README.md) for other devices.
 
 - Edit the project [CMakeLists.txt](./CMakeLists.txt) to optionally point this project's wolfSSL component source code at a different directory:
 
@@ -30,12 +30,12 @@ set(WOLFSSL_ROOT "~/workspace/wolfssl-other-source")
 
 ## Getting Started:
 
-Here's an example using the command-line [idf.py](https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-guides/tools/idf-py.html).
+Here's an example using the command-line [idf.py](Espressifapi-guides/tools/idf-py.html).
 
 Edit your `WRK_IDF_PATH`to point to your ESP-IDF install directory.
 
 ```
-WRK_IDF_PATH=/mnt/c/SysGCC/esp32/esp-idf/v5.1
+WRK_IDF_PATH=/mnt/c/SysGCC/esp32/esp-idf/v5.2
 
 echo "Run export.sh from ${WRK_IDF_PATH}"
 . ${WRK_IDF_PATH}/export.sh
@@ -53,7 +53,7 @@ idf.py flash -p /dev/ttyS19 -b 115200
 idf.py flash -p /dev/ttyS19 -b 115200 monitor
 ```
 
-Press `Ctrl+]` to exit `idf.py monitor`. See [additional monitor keyboard commands](https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-guides/tools/idf-monitor.html).
+Press `Ctrl+]` to exit `idf.py monitor`. See [additional monitor keyboard commands](Espressifapi-guides/tools/idf-monitor.html).
 
 ## Other Examples:
 

IDE/Espressif/ESP-IDF/examples/template/components/wolfssl/CMakeLists.txt

@@ -28,6 +28,9 @@ cmake_minimum_required(VERSION 3.16)
 
 set(VERBOSE_COMPONENT_MESSAGES 1)
 
+# Optional requires include:
+# set(THIS_ESP_TLS "esp-tls")
+set(THIS_ESP_TLS "")
 
 # function: IS_ESP_IDF_COMPONENT
 #  output:    RESULT = 1 (true) if this component is located in the ESP-IDF components
@@ -153,7 +156,7 @@ if( ("${CMAKE_PROJECT_NAME}" STREQUAL "wolfssl_benchmark") OR ("${CMAKE_PROJECT_
     message(STATUS "Not including lwip for ${CMAKE_PROJECT_NAME}")
 else()
     # benchmark and test do not need wifi, everything else probably does:
-    set(COMPONENT_REQUIRES lwip) # we typically don't need lwip directly in wolfssl component
+    set(COMPONENT_REQUIRES lwip "${THIS_ESP_TLS}") # we typically don't need lwip directly in wolfssl component
 endif()
 
 # find the user name to search for possible "wolfssl-username"
@@ -404,22 +407,28 @@ endif()
 
 if ( ("${CONFIG_TARGET_PLATFORM}" STREQUAL "esp8266") OR ("${IDF_TARGET}" STREQUAL "esp8266") )
     # There's no esp_timer, no driver components for the ESP8266
-    message(STATUS "Early expansion EXCLUDES esp_timer: ${THIS_INCLUDE_TIMER}")
-    message(STATUS "Early expansion EXCLUDES driver: ${THIS_INCLUDE_DRIVER}")
+    message(STATUS "Early expansion EXCLUDES esp_timer for esp8266: ${THIS_INCLUDE_TIMER}")
+    message(STATUS "Early expansion EXCLUDES driver for esp8266: ${THIS_INCLUDE_DRIVER}")
     set(THIS_INCLUDE_TIMER "")
     set(THIS_INCLUDE_DRIVER "")
+    set(THIS_ESP_TLS "")
 else()
     message(STATUS "Early expansion includes esp_timer: ${THIS_INCLUDE_TIMER}")
     message(STATUS "Early expansion includes driver: ${THIS_INCLUDE_DRIVER}")
     set(THIS_INCLUDE_TIMER "esp_timer")
     set(THIS_INCLUDE_DRIVER "driver")
+    set(THIS_ESP_TLS "esp-tls")
+    # Let the app know that we've included the esp-tls component requirement.
+    # This is critical for use the the esp-tls component. See wolfssl esp_crt_bundle.c file.
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DWOLFSSL_CMAKE_REQUIRED_ESP_TLS=1")
 endif()
 
 if(CMAKE_BUILD_EARLY_EXPANSION)
     message(STATUS "wolfssl component CMAKE_BUILD_EARLY_EXPANSION:")
     idf_component_register(
                             REQUIRES "${COMPONENT_REQUIRES}"
                             PRIV_REQUIRES # esp_hw_support
+                                          "${THIS_ESP_TLS}"
                                           "${THIS_INCLUDE_TIMER}"
                                           "${THIS_INCLUDE_DRIVER}" # this will typically only be needed for wolfSSL benchmark
                            )
@@ -757,6 +766,7 @@ else()
                                 REQUIRES "${COMPONENT_REQUIRES}"
                                 EXCLUDE_SRCS "${COMPONENT_SRCEXCLUDE}"
                                 PRIV_REQUIRES
+                                  "${THIS_ESP_TLS}"
                                   "${THIS_INCLUDE_TIMER}"
                                   "${THIS_INCLUDE_DRIVER}" # this will typically only be needed for wolfSSL benchmark
                                )
@@ -768,7 +778,10 @@ else()
     endif()
 
 # function(WOLFSSL_INIT_CERT_BUNDLE)
-if(CONFIG_WOLFSSL_CERTIFICATE_BUNDLE AND NOT CONFIG_WOLFSSL_CERTIFICATE_BUNDLE_DEFAULT_NONE)
+if( CONFIG_WOLFSSL_CERTIFICATE_BUNDLE
+    AND NOT CONFIG_WOLFSSL_CERTIFICATE_BUNDLE_DEFAULT_NONE
+    AND NOT ("${CONFIG_TARGET_PLATFORM}" STREQUAL "esp8266")
+  )
     if (CMAKE_BUILD_EARLY_EXPANSION)
         message(ERROR "Bundle Cert initialization must occur during CMAKE_BUILD_EARLY_EXPANSION")
     endif()
@@ -1001,10 +1014,13 @@ if(WOLFSSL_ROOT)
     set(ENV{PIO_WOLFSSL_ROOT} "${WOLFSSL_ROOT}")
     message(STATUS "PIO_WOLFSSL_ROOT =  $ENV{PIO_WOLFSSL_ROOT}")
     message(STATUS "PLATFORMIO_BUILD_DIR = $ENV{PLATFORMIO_BUILD_DIR}")
-    file(WRITE "tada.txt" "${WOLFSSL_ROOT}\n")
     # See esp-tls Kconfig; menu "ESP-TLS", ESP_TLS_LIBRARY_CHOOSE
     if(CONFIG_ESP_TLS_USING_WOLFSSL)
-        message(STATUS "wolfSSL will be used for ESP-TLS")
+        if ( ("${CONFIG_TARGET_PLATFORM}" STREQUAL "esp8266") OR ("${IDF_TARGET}" STREQUAL "esp8266") )
+            message(STATUS "This version of wolfSSL is not supported on the ESP8266 esp-tls at this time. Check ESP-TLS config")
+        else()
+            message(STATUS "wolfSSL will be used for ESP-TLS")
+        endif()
     else()
         message(STATUS "WARNING: wolfSSL NOT selected for ESP-TLS. Features and performance will be limited.")
     endif()

IDE/Espressif/ESP-IDF/examples/template/components/wolfssl/Kconfig

@@ -382,6 +382,24 @@ menu "wolfSSL"
                 Hardware acceleration enabled by default.
                 Select this option to force disable: NO_HW_RSA_PRI_EXPTMOD
 
+        config ESP_WOLFSSL_DEBUG_ESP_HW_MULTI_RSAMAX_BITS
+            bool "Enable debugging of RSA Multiplication operand length"
+            default n
+            help
+                Prints an esp log warning to the default console UART when one of the
+                multiplication operands exceeds the maximum size supported by hardware,
+                requiring fallback to software. This can be helpful to pick key sizes
+                when performance is critical. See also metrics for counting instances.
+
+        config ESP_WOLFSSL_DEBUG_ESP_HW_MOD_RSAMAX_BITS
+            bool "Enable debugging of RSA Modular operand length"
+            default n
+            help
+                Prints an esp log warning to the default console UART when one of the
+                modular math operands exceeds the maximum size supported by hardware,
+                requiring fallback to software. This can be helpful to pick key sizes
+                when performance is critical. See also metrics for counting instances.
+
     endmenu # wolfSSL Hardware Acceleration
     # -----------------------------------------------------------------------------------------------------------------
 
@@ -410,6 +428,13 @@ menu "wolfSSL"
             default n
             help
                 Enable debugging messages for wolfSSL. See user_settings.h for additional debug options.
+
+        config ESP_WOLFSSL_TEST_LOOP
+            bool "Run test apps in a loop until failure"
+            default y
+            help
+                Enable a loop wrapper for benchmark, http_client, and wolfssl test apps.
+
     endmenu # wolfSSL Debug Options
     # -----------------------------------------------------------------------------------------------------------------