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Addison Crump f6606473af
aya-log: properly hint log level to verifier 
The log level implementation in b36cbc3eb8
was incomplete as the verifier could reject programs which exceeded
their instruction limits within logging statements. This commit
addresses this issue by making the log level static variable immutable
(s.t. the compiler puts it in a read-only section) and adds an
additional test which the verifier will reject as an infinite loop iff
it is unable to detect that the static variable would otherwise allow
the logging.
 		7 days ago
..
integration-common taplo: reorder-keys 6 months ago
integration-ebpf aya-log: properly hint log level to verifier 7 days ago
integration-test aya-log: properly hint log level to verifier 7 days ago
.gitignore test: Replace RTF with Rust 3 years ago
README.md ci: cache downloads 9 months ago

README.md

Aya Integration Tests

The aya integration test suite is a set of tests to ensure that common usage behaviours work on real Linux distros

Prerequisites

You'll need:

  1. rustup toolchain install nightly
  2. rustup target add {aarch64,x86_64}-unknown-linux-musl
  3. cargo install bpf-linker
  4. libelf-dev (libelf-devel on rpm-based distros)
  5. llvm (for llvm-objcopy)
  6. (virtualized only) qemu

Usage

From the root of this repository:

Native

cargo xtask integration-test local

Virtualized

cargo xtask integration-test vm --cache-dir <CACHE_DIR> <KERNEL_IMAGE>...

Writing an integration test

Tests should follow these guidelines:

  • Rust eBPF code should live in integration-ebpf/${NAME}.rs and included in integration-ebpf/Cargo.toml and integration-test/src/lib.rs using include_bytes_aligned!.
  • C eBPF code should live in integration-test/bpf/${NAME}.bpf.c. It should be added to the list of files in integration-test/build.rs and the list of constants in integration-test/src/lib.rs using include_bytes_aligned!.
  • Tests should be added to integration-test/tests.
  • You may add a new module, or use an existing one.
  • Test functions should not return anyhow::Result<()> since this produces errors without stack traces. Prefer to panic! instead.