Clean up fuzzing

Cargo.toml

@@ -1,4 +1,4 @@
 [workspace]
-members = ["protocol", "protocol/fuzz", "traffic"]
-default-members = ["protocol", "traffic"]
+members = ["protocol", "traffic"]
+exclude = ["fuzz"]
 resolver = "2"

protocol/fuzz/Cargo.toml → fuzz/Cargo.toml

@@ -9,7 +9,7 @@ cargo-fuzz = true
 
 [dependencies]
 libfuzzer-sys = "0.4"
-bip324 = { path = ".." }
+bip324 = { path = "../protocol" }
 rand = "0.8"
 secp256k1 = "0.29"
 

justfile

@@ -1,7 +1,7 @@
 # Every commit on the master branch is expected to have working `check` and `test-*` recipes.
 #
 # The recipes make heavy use of `rustup`'s toolchain syntax (e.g. `cargo +nightly`). `rustup` is
-# required on the system in order to intercept the `cargo` commands and to install and use the appropriate toolchain with components. 
+# required on the system in order to intercept the `cargo` commands and to install and use the appropriate toolchain with components.
 #
 # The root directory of this workspace is "virtual", it has no source code itself, just a holder of crates. This means
 # the cargo commands generally run on all the child crates by default without the `--workspace` flag.
@@ -36,12 +36,12 @@ STABLE_TOOLCHAIN := "1.88.0"
   # Adding --fix flag to apply suggestions with --allow-dirty.
   cargo +{{NIGHTLY_TOOLCHAIN}} clippy --all-features --all-targets --fix --allow-dirty -- -D warnings
 
-# Run a test suite: features, msrv, constraints, no-std, or all.
+# Run a test suite: features, msrv, constraints, no-std, fuzz, or all.
 @test suite="features":
   just _test-{{suite}}
 
 # Run all test suites.
-@_test-all: _test-features _test-msrv _test-constraints _test-no-std
+@_test-all: _test-features _test-msrv _test-constraints _test-no-std _test-fuzz
 
 # Test library with feature flag matrix compatability.
 @_test-features:
@@ -68,7 +68,7 @@ STABLE_TOOLCHAIN := "1.88.0"
   # Clear any previously resolved versions and re-resolve to the minimums.
   rm -f Cargo.lock
   cargo +{{NIGHTLY_TOOLCHAIN}} check --all-features -Z direct-minimal-versions
-  # Clear again and check the maximums by ignoring any rust-version caps. 
+  # Clear again and check the maximums by ignoring any rust-version caps.
   rm -f Cargo.lock
   cargo +{{NIGHTLY_TOOLCHAIN}} check --all-features --ignore-rust-version
   rm -f Cargo.lock
@@ -78,21 +78,15 @@ STABLE_TOOLCHAIN := "1.88.0"
   cargo install [email protected]
   $HOME/.cargo/bin/cross build --package bip324 --target thumbv7m-none-eabi --no-default-features
 
+# Check that fuzz targets compile.
+@_test-fuzz:
+  cargo install [email protected]
+  cargo +{{NIGHTLY_TOOLCHAIN}} fuzz build
+
 # Run benchmarks.
 @bench:
   cargo +{{NIGHTLY_TOOLCHAIN}} bench --package bip324 --bench cipher_session
 
-# Run fuzz target: receive_key or receive_garbage.
-@fuzz target seconds:
-  rustup component add --toolchain {{NIGHTLY_TOOLCHAIN}} llvm-tools-preview
-  cargo install [email protected]
-  # Generate new test cases and add to corpus. Bumping length for garbage.
-  cd protocol && cargo +{{NIGHTLY_TOOLCHAIN}} fuzz run {{target}} -- -max_len=5120 -max_total_time={{seconds}}
-  # Measure coverage of corpus against code.
-  cd protocol && cargo +{{NIGHTLY_TOOLCHAIN}} fuzz coverage {{target}}
-  # Generate HTML coverage report.
-  protocol/fuzz/coverage.sh {{NIGHTLY_TOOLCHAIN}} {{target}}
-
 # Add a release tag and publish to the upstream remote. Requires write privileges.
 @tag crate version remote="upstream":
   # Guardrails: on a clean main with updated changelog and manifest.