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82 lines
3.1 KiB
YAML
82 lines
3.1 KiB
YAML
name: Fuzz Smoke
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on:
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push:
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branches:
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- main
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pull_request:
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branches:
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- main
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workflow_dispatch:
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permissions:
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contents: read
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env:
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CARGO_TERM_COLOR: always
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# Pinned for reproducibility; bump deliberately alongside `fuzz/Cargo.lock`.
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CARGO_FUZZ_VERSION: 0.13.1
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CARGO_FUZZ_SHA256: 86edc9b8f20c29ff07c3e5fcd67bc3f0784b3b960a5428635060f20d50555461
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FUZZ_TOOLCHAIN: nightly-x86_64-unknown-linux-gnu
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FUZZ_TARGET: x86_64-unknown-linux-gnu
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jobs:
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fuzz-smoke:
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name: cargo fuzz smoke
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runs-on: ubuntu-latest
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timeout-minutes: 20
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steps:
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- name: Checkout
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uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
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with:
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persist-credentials: false
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- name: Install stable Rust toolchain
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uses: actions-rust-lang/setup-rust-toolchain@ecabd13d1c56bd1345c230e542e9144811ad706f # v2
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with:
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cache: false
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- name: Install nightly Rust toolchain
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# Installed alongside, but deliberately not made the directory
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# default: cargo-fuzz itself is built with the default stable
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# toolchain below, and only `fuzz build`/`fuzz run` are run with
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# the GNU-host nightly below. Building cargo-fuzz's own dependency
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# tree under a nightly override can trip build scripts (e.g. rustix) that gate
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# unstable internal attributes on detecting a nightly compiler.
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run: rustup toolchain install "${FUZZ_TOOLCHAIN}" --profile minimal --no-self-update
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- name: Install cargo-fuzz
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run: |
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set -euo pipefail
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archive="cargo-fuzz-${CARGO_FUZZ_VERSION}-x86_64-unknown-linux-musl.tar.gz"
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curl --fail --show-error --location --retry 3 \
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"https://github.com/rust-fuzz/cargo-fuzz/releases/download/${CARGO_FUZZ_VERSION}/${archive}" \
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--output "$archive"
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echo "${CARGO_FUZZ_SHA256} ${archive}" | sha256sum --check --status -
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tar -xzf "$archive" cargo-fuzz
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install -Dm755 cargo-fuzz "${RUNNER_TEMP}/bin/cargo-fuzz"
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echo "${RUNNER_TEMP}/bin" >> "$GITHUB_PATH"
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- name: Build all fuzz targets
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# libFuzzer sanitizers require dynamically linked GNU binaries; the
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# runner's default Rust host can be static musl.
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run: RUSTUP_TOOLCHAIN="${FUZZ_TOOLCHAIN}" cargo fuzz build --target "${FUZZ_TARGET}"
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working-directory: fuzz
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- name: Run bounded fuzz smoke for every target
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# A single job building once and running each target sequentially
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# avoids recompiling the fuzz workspace per target. Ten seconds per
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# target is enough to catch a broken harness or an obvious
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# regression; this is not meant to be exhaustive fuzzing.
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run: |
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set -euo pipefail
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for target in decode_request decode_open_reply decode_echo_reply decode_params decode_varint server_core_datagrams; do
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echo "::group::fuzz smoke: ${target}"
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RUSTUP_TOOLCHAIN="${FUZZ_TOOLCHAIN}" cargo fuzz run --target "${FUZZ_TARGET}" "${target}" -- \
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-max_total_time=10 \
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-timeout=5
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echo "::endgroup::"
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done
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working-directory: fuzz
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