Initial wolfSSH Espressif ESP32 template and echo server examples

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

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+# wolfSSL Espressif Managed Component examples
+
+[wolfssh_template](./wolfssh_template/README.md)
+
+[wolfssh_echoserver](./wolfssh_echoserver/README.md)

ide/Espressif/ESP-IDF/examples/wolfssh_echoserver/CMakeLists.txt

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+#  [wolfSSL Project]/CMakeLists.txt
+#
+#  Copyright (C) 2006-2023 WOLFSSL Inc.
+#
+#  This file is part of WOLFSSH.
+#
+#  WOLFSSH is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2 of the License, or
+#  (at your option) any later version.
+#
+#  WOLFSSH is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with this program; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
+#
+# cmake for WOLFSSH Espressif projects
+#
+# See https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-guides/build-system.html
+
+# wolfSSL Espressif Example Project CMakeLists.txt
+#   v1.0
+#
+# 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)
+
+# enable wolfssl user_settings.h project-wide
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DWOLFSSL_USER_SETTINGS")
+set(WOLFSSL_USER_SETTINGS ON)
+
+# Assume we have a ESP_ENABLE_WOLFSSH section in user_settings.h
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DESP_ENABLE_WOLFSSH")
+
+# The wolfSSL CMake file should be able to find the source code.
+# Otherwise, assign an environment variable or set it here:
+#
+# set(WOLFSSL_ROOT "~/workspace/wolfssl-other-source")
+# set(WOLFSSH_ROOT "~/workspace/wolfssh-other-source")
+# set(WOLFSSL_ROOT "C:/workspace/wolfssl-master")
+
+# Optional WOLFSSL_CMAKE_SYSTEM_NAME detection to find
+# USE_MY_PRIVATE_CONFIG path for my_private_config.h
+#
+# Expected path varies:
+#
+#     WSL:  /mnt/c/workspace
+#   Linux:  ~/workspace
+# Windows:  C:\workspace
+#
+if(WIN32)
+    # Windows-specific configuration here
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DWOLFSSL_CMAKE_SYSTEM_NAME_WINDOWS")
+    message("Detected Windows")
+endif()
+if(CMAKE_HOST_UNIX)
+    message("Detected UNIX")
+endif()
+if(APPLE)
+    message("Detected APPLE")
+endif()
+if(CMAKE_HOST_UNIX AND (NOT APPLE) AND EXISTS "/proc/sys/fs/binfmt_misc/WSLInterop")
+    # Windows-specific configuration here
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DWOLFSSL_CMAKE_SYSTEM_NAME_WSL")
+    message("Detected WSL")
+endif()
+if(CMAKE_HOST_UNIX AND (NOT APPLE) AND (NOT WIN32))
+    # Windows-specific configuration here
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DWOLFSSL_CMAKE_SYSTEM_NAME_LINUX")
+    message("Detected Linux")
+endif()
+if(APPLE)
+    # Windows-specific configuration here
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DWOLFSSL_CMAKE_SYSTEM_NAME_APPLE")
+    message("Detected Apple")
+endif()
+# End optional WOLFSSL_CMAKE_SYSTEM_NAME
+
+# This example uses an extra component for common functions such as Wi-Fi and Ethernet connection.
+set (PROTOCOL_EXAMPLES_DIR $ENV{IDF_PATH}/examples/common_components/protocol_examples_common)
+
+if (EXISTS "${PROTOCOL_EXAMPLES_DIR}")
+    message("Found PROTOCOL_EXAMPLES_DIR=${PROTOCOL_EXAMPLES_DIR}")
+    set(EXTRA_COMPONENT_DIRS $ENV{IDF_PATH}/examples/common_components/protocol_examples_common)
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DFOUND_PROTOCOL_EXAMPLES_DIR")
+else()
+    message("NOT FOUND: PROTOCOL_EXAMPLES_DIR=${PROTOCOL_EXAMPLES_DIR}")
+endif()
+
+# Check that there are not conflicting wolfSSL components
+# The ESP Registry Component will be in ./managed_components/wolfssl__wolfssl
+# The local component wolfSSL directory will be in ./components/wolfssl
+if( EXISTS "${CMAKE_HOME_DIRECTORY}/managed_components/wolfssl__wolfssl" AND EXISTS "${CMAKE_HOME_DIRECTORY}/components/wolfssl" )
+    # These exclude statements don't seem to be honored by the $ENV{IDF_PATH}/tools/cmake/project.cmake'
+    # add_subdirectory("${CMAKE_HOME_DIRECTORY}/managed_components/wolfssl__wolfssl" EXCLUDE_FROM_ALL)
+    # add_subdirectory("${CMAKE_HOME_DIRECTORY}/managed_components/wolfssl__wolfssl/include" EXCLUDE_FROM_ALL)
+    # So we'll error out and let the user decide how to proceed:
+    message(WARNING "\nFound wolfSSL components in\n"
+                    "./managed_components/wolfssl__wolfssl\n"
+                    "and\n"
+                    "./components/wolfssl\n"
+                    "in project directory: \n"
+                    "${CMAKE_HOME_DIRECTORY}")
+    message(FATAL_ERROR "\nPlease use either the ESP Registry Managed Component or the wolfSSL component directory but not both.\n"
+                        "If removing the ./managed_components/wolfssl__wolfssl directory, remember to also remove "
+                        "or rename the idf_component.yml file typically found in ./main/")
+else()
+    message(STATUS "No conflicting wolfSSL components found.")
+endif()
+
+
+# This example uses an extra component for common functions such as Wi-Fi and Ethernet connection.
+set (PROTOCOL_EXAMPLES_DIR $ENV{IDF_PATH}/examples/common_components/protocol_examples_common)
+
+if (EXISTS "${PROTOCOL_EXAMPLES_DIR}")
+    message("Found PROTOCOL_EXAMPLES_DIR=${PROTOCOL_EXAMPLES_DIR}")
+    set(EXTRA_COMPONENT_DIRS $ENV{IDF_PATH}/examples/common_components/protocol_examples_common)
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DFOUND_PROTOCOL_EXAMPLES_DIR")
+else()
+    message("NOT FOUND: PROTOCOL_EXAMPLES_DIR=${PROTOCOL_EXAMPLES_DIR}")
+endif()
+
+include($ENV{IDF_PATH}/tools/cmake/project.cmake)
+
+project(wolfssh_echoserver)

ide/Espressif/ESP-IDF/examples/wolfssh_echoserver/README.md

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+# wolfSSL Server Project
+
+This is an example wolfSSH Server based on the minimally viable wolfSSL [template](../wolfssh_template/README.md)
+
+See the [command line example client](https://github.com/wolfSSL/wolfssh/tree/master/examples/client)
+and the instructions in [wolfssh README.md](https://github.com/wolfSSL/wolfssh#readme)
+
+To connect:
+
+```bash
+TODO
+
+ssh -p 22222 jack@192.168.1.32
+```
+
+### Prerequisites
+
+It is assumed the [ESP-IDF environment](https://docs.espressif.com/projects/esp-idf/en/latest/esp32/get-started/) has been installed.
+
+### Files Included
+
+- [main.c](./main/main.c) with a simple call to an Espressif library (`ESP_LOGI`) and a call to a wolfSSL library (`esp_ShowExtendedSystemInfo`) . 
+
+- See [components/wolfssl/include](./components/wolfssl/include/user_settings.h) directory to edit the wolfSSL `user_settings.h`.
+
+- Edit [main/CMakeLists.txt](./main/CMakeLists.txt) to add/remove source files.
+
+- 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.
+
+- Edit the project [CMakeLists.txt](./CMakeLists.txt) to optionally point this project's wolfSSL component source code at a different directory:
+
+```
+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).
+
+Edit your `WRK_IDF_PATH`to point to your ESP-IDF install directory.
+
+```
+WRK_IDF_PATH=/mnt/c/SysGCC/esp32/esp-idf/v5.1
+
+echo "Run export.sh from ${WRK_IDF_PATH}"
+. ${WRK_IDF_PATH}/export.sh
+
+# build the example:
+idf.py build
+
+# flash the code onto the serial device at /dev/ttyS19
+idf.py flash -p /dev/ttyS19 -b 115200
+
+# build, flash, and view UART output with one command:
+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).
+
+## Other Examples:
+
+For examples, see:
+
+- [TLS Client](../wolfssl_client/README.md)
+- [TLS Server](../wolfssl_server/README.md)
+- [Benchmark](../wolfssl_benchmark/README.md)
+- [Test](../wolfssl_test/README.md)
+- [wolfssl-examples](https://github.com/wolfSSL/wolfssl-examples/tree/master/ESP32)
+- [wolfssh-examples](https://github.com/wolfSSL/wolfssh-examples/tree/main/Espressif)
+
+
+

ide/Espressif/ESP-IDF/examples/wolfssh_echoserver/VisualGDB/wolfssh_echoserver_IDF_v5.1_ESP32.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.7.34031.279
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{803FD0C6-D64E-4E16-9DC3-1DAEC859A3D2}") = "wolfssh_echoserver_IDF_v5.1_ESP32", "wolfssh_echoserver_IDF_v5.1_ESP32.vgdbproj", "{EADCC9AB-72B3-4B51-A838-593E5D80DDF7}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{510C1DEE-DFFB-4C38-864E-DCE7A172ABB7}"
+	ProjectSection(SolutionItems) = preProject
+		..\..\..\..\..\..\..\wolfssl-gojimmypi\wolfssl\wolfcrypt\port\Espressif\esp32-crypt.h = ..\..\..\..\..\..\..\wolfssl-gojimmypi\wolfssl\wolfcrypt\port\Espressif\esp32-crypt.h
+		..\README.md = ..\README.md
+	EndProjectSection
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|VisualGDB = Debug|VisualGDB
+		Release|VisualGDB = Release|VisualGDB
+		Tests (Debug)|VisualGDB = Tests (Debug)|VisualGDB
+		Tests (Release)|VisualGDB = Tests (Release)|VisualGDB
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{EADCC9AB-72B3-4B51-A838-593E5D80DDF7}.Debug|VisualGDB.ActiveCfg = Debug|VisualGDB
+		{EADCC9AB-72B3-4B51-A838-593E5D80DDF7}.Debug|VisualGDB.Build.0 = Debug|VisualGDB
+		{EADCC9AB-72B3-4B51-A838-593E5D80DDF7}.Release|VisualGDB.ActiveCfg = Release|VisualGDB
+		{EADCC9AB-72B3-4B51-A838-593E5D80DDF7}.Release|VisualGDB.Build.0 = Release|VisualGDB
+		{EADCC9AB-72B3-4B51-A838-593E5D80DDF7}.Tests (Debug)|VisualGDB.ActiveCfg = Tests (Debug)|VisualGDB
+		{EADCC9AB-72B3-4B51-A838-593E5D80DDF7}.Tests (Debug)|VisualGDB.Build.0 = Tests (Debug)|VisualGDB
+		{EADCC9AB-72B3-4B51-A838-593E5D80DDF7}.Tests (Release)|VisualGDB.ActiveCfg = Tests (Release)|VisualGDB
+		{EADCC9AB-72B3-4B51-A838-593E5D80DDF7}.Tests (Release)|VisualGDB.Build.0 = Tests (Release)|VisualGDB
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {C3DD3774-E396-475C-B78D-604D7CD9B732}
+	EndGlobalSection
+EndGlobal