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Add rustls real socket test with TLS server and client implementation
- Created a new Rust package for testing rustls with real socket connections. - Added Cargo.toml with dependencies for rustls, rustls-rustcrypto, anyhow, log, and env_logger. - Implemented main.rs to set up a TLS server and client using rustls. - Included dummy certificate verification for testing purposes. - Added binary files for certificate and private key in DER format.
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‎.github/workflows/esp32-test.yml‎

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name: ESP32 Test Build
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on:
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# push:
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# branches: [ master ]
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# paths:
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# - 'validation/esp32-test/**'
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# - '.github/workflows/esp32-test.yml'
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# pull_request:
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# paths:
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# - 'validation/esp32-test/**'
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# - '.github/workflows/esp32-test.yml'
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workflow_dispatch:
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permissions:
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contents: read
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jobs:
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build:
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runs-on: ubuntu-latest
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steps:
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- name: Checkout code
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uses: actions/checkout@v4
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- name: Cache ESP-IDF
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uses: actions/cache@v4
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with:
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path: |
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~/.espressif
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/opt/esp
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key: ${{ runner.os }}-espidf-${{ hashFiles('validation/esp32-test/sdkconfig.defaults') }}
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restore-keys: |
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${{ runner.os }}-espidf-
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- name: Install ESP-IDF
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uses: espressif/install-esp-idf-action@v1
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with:
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version: "v5.5.1"
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- name: Set ESP-IDF environment
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run: |
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echo "ESP_IDF_TOOLS_INSTALL_DIR=/opt/esp" >> $GITHUB_ENV
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echo "ESP_IDF_PATH=/opt/esp/idf" >> $GITHUB_ENV
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- name: Set up Rust
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uses: dtolnay/rust-toolchain@master
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with:
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toolchain: nightly
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components: rust-src
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- name: Setup SCCache
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uses: mozilla-actions/[email protected]
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- name: Cache Cargo
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uses: Swatinem/rust-cache@v2
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with:
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workspaces: "validation/esp32-test"
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- name: Setup | ldproxy
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uses: taiki-e/cache-cargo-install-action@v2
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with:
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tool: ldproxy
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- name: Build ESP32 test
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working-directory: validation/esp32-test
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run: |
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cargo build
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env:
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SCCACHE_GHA_ENABLED: "true"
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RUSTC_WRAPPER: "sccache"
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- name: Upload build artifacts
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uses: actions/upload-artifact@v4
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with:
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name: esp32-test-build
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path: |
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validation/esp32-test/build/
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retention-days: 30

‎.github/workflows/rustls-real-socket-test.yml‎

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name: Rustls Real Socket Test
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on:
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push:
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branches: [ master ]
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paths:
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- 'validation/rustls-real-socket-test/**'
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- '.github/workflows/rustls-real-socket-test.yml'
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pull_request:
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paths:
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- 'validation/rustls-real-socket-test/**'
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- '.github/workflows/rustls-real-socket-test.yml'
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permissions:
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contents: read
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jobs:
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test:
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runs-on: ubuntu-latest
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steps:
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- name: Checkout code
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uses: actions/checkout@v4
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- name: Set up Rust
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uses: dtolnay/rust-toolchain@stable
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- name: Setup SCCache
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uses: mozilla-actions/[email protected]
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- name: Cache Cargo
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uses: Swatinem/rust-cache@v2
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with:
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workspaces: "validation/rustls-real-socket-test"
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- name: Run in release mode
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working-directory: validation/rustls-real-socket-test
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run: cargo run --release
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env:
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SCCACHE_GHA_ENABLED: "true"
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RUSTC_WRAPPER: "sccache"
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- name: Upload build artifacts
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uses: actions/upload-artifact@v4
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with:
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name: rustls-real-socket-test-release
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path: |
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validation/rustls-real-socket-test/target/release/
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retention-days: 30

‎Cargo.toml‎

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rustls = { version = "0.23.31", default-features = false }
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webpki = { package = "rustls-webpki", version = "0.103.4", default-features = false, optional = true }
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[dev-dependencies]
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bytes = { version = "1.10.1", default-features = false }
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itertools = { version = "0.14.0", default-features = false }

‎validation/esp32-test/.cargo/config.toml‎

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[build]
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target = "riscv32imac-esp-espidf"
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[target.riscv32imac-esp-espidf]
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linker = "ldproxy"
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runner = "espflash flash --monitor"
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rustflags = [ "--cfg", "espidf_time64"]
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[unstable]
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build-std = ["std", "panic_abort"]
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[env]
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MCU="esp32c6"

‎validation/esp32-test/.gitignore‎

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/.vscode
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/.embuild
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/target
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/Cargo.lock

‎validation/esp32-test/Cargo.toml‎

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[package]
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name = "esp32-test"
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version = "0.1.0"
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authors = ["Steve Fan <[email protected]>"]
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edition = "2024"
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resolver = "2"
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rust-version = "1.88.0"
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[[bin]]
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name = "esp32-test"
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harness = false # do not use the built in cargo test harness -> resolve rust-analyzer errors
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[profile.release]
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opt-level = "s"
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[profile.dev]
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debug = true # Symbols are nice and they don't increase the size on Flash
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opt-level = "z"
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[features]
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default = []
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experimental = ["esp-idf-svc/experimental"]
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[dependencies]
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anyhow = { version = "1.0", default-features = false }
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esp-idf-svc = "0.51"
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log = "0.4"
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rustls-rustcrypto = { version = "0.0.2-alpha", path = "../..", default-features = false, features = ["aead-chacha20poly1305", "alloc", "der", "ecdsa-p256", "fast", "kx-p256", "pkcs8", "sign-ecdsa-p256", "tls12", "verify-ecdsa-p256", "verify-ecdsa-p256-sha256"] }
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# --- Optional Embassy Integration ---
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# esp-idf-svc = { version = "0.51", features = ["critical-section", "embassy-time-driver", "embassy-sync"] }
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# If you enable embassy-time-driver, you MUST also add one of:
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# a) Standalone Embassy libs ( embassy-time, embassy-sync etc) with a foreign async runtime:
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# embassy-time = { version = "0.4.0", features = ["generic-queue-8"] } # NOTE: any generic-queue variant will work
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# b) With embassy-executor:
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# embassy-executor = { version = "0.7", features = ["executor-thread", "arch-std"] }
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# NOTE: if you use embassy-time with embassy-executor you don't need the generic-queue-8 feature
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# --- Temporary workaround for embassy-executor < 0.8 ---
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# esp-idf-svc = { version = "0.51", features = ["embassy-time-driver", "embassy-sync"] }
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# critical-section = { version = "1.1", features = ["std"], default-features = false }
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[build-dependencies]
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embuild = "0.33"

‎validation/esp32-test/build.rs‎

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fn main() {
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embuild::espidf::sysenv::output();
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}

‎validation/esp32-test/rust-toolchain.toml‎

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[toolchain]
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channel = "nightly"
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components = ["rust-src"]

‎validation/esp32-test/sdkconfig.defaults‎

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# Rust often needs a bit of an extra main task stack size compared to C (the default is 3K)
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CONFIG_ESP_MAIN_TASK_STACK_SIZE=8000
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# Use this to set FreeRTOS kernel tick frequency to 1000 Hz (100 Hz by default).
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# This allows to use 1 ms granularity for thread sleeps (10 ms by default).
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#CONFIG_FREERTOS_HZ=1000
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# Workaround for https://github.com/espressif/esp-idf/issues/7631
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#CONFIG_MBEDTLS_CERTIFICATE_BUNDLE=n
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#CONFIG_MBEDTLS_CERTIFICATE_BUNDLE_DEFAULT_FULL=n

‎validation/esp32-test/src/cert.der‎

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