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828 Commits (d0424fb09113912a4d12be583e07c2fedf3beab1)
 

Author SHA1 Message Date
Michal Rostecki bd336acb02 aya-gen: Disable Debug derive for BTF types 
It's a workaround for the upstream bindgen issue:

https://github.com/rust-lang/rust-bindgen/issues/2083

tl;dr: Rust nightly complains about #[repr(packed)] structs deriving
Debug without Copy.

It needs to be fixed properly upstream, but for now we have to disable
Debug derive here.

Signed-off-by: Michal Rostecki <vadorovsky@gmail.com>
Alessandro Decina 69cc844bbf
Merge pull request from dave-tucker/map_sec 
bpf: Maps live in maps section
Dave Tucker f12c0269d0 bpf: Maps live in maps section 
This forces all maps to the maps section so we remain compatible with
libbpf. This requires  to avoid breaking userspace.

Signed-off-by: Dave Tucker <dave@dtucker.co.uk>
Alessandro Decina cb57d10d25 aya: rework links 
Remove LinkRef and remove the Rc<RefCell<_>> that was used to store
type-erased link values in ProgramData. Among other things, this allows
`Bpf` to be `Send`, which makes it easier to use it with async runtimes.

Change the link API to:

    let link_id = prog.attach(...)?;
    ...
    prog.detach(link_id)?;

Link ids are strongly typed, so it's impossible to eg:

    let link_id = uprobe.attach(...)?;
    xdp.detach(link_id);

As it would result in a compile time error.

Links are still stored inside ProgramData, and unless detached
explicitly, they are automatically detached when the parent program gets
dropped.
Alessandro Decina 5472ac0354
Merge pull request from dave-tucker/multimap 
aya: Support multiple maps in map sections
Dave Tucker f357be7db4 aya: Support multiple maps in map sections 
This commit uses the symbol table to discover all maps inside an ELF
section. Instead of doing what libbpf does - divide the section data
in to equal sized chunks - we read in to section data using the
symbol address and offset, thus allowing us to support definitions
of varying lengths.

Signed-off-by: Dave Tucker <dave@dtucker.co.uk>
Alessandro Decina 2e494a1a29
Merge pull request from nak3:fix-typo 
Fix tiny typo
Kenjiro Nakayama 80913c04f3 Fix minor typo
Alessandro Decina 7d08783b18
Merge pull request from alessandrod/memcpy 
ebpf: add fallback memcpy
Alessandro Decina 29d539751a ebpf: add fallback memcpy 
Add simplest possible memcpy that the verifier should never trip on
Alessandro Decina a1d4499967
Merge pull request from alessandrod/perf-reserve 
aya: perf_buffer: call BytesMut::reserve() internally
Alessandro Decina ad1636d2e7 aya: perf_buffer: call BytesMut::reserve() internally 
This changes PerfBuffer::read_events() to call BytesMut::reserve()
internally, and deprecates PerfBufferError::MoreSpaceNeeded.

This makes for a more ergonomic API, and allows for a more idiomatic
usage of BytesMut. For example consider:

    let mut buffers = vec![BytesMut::with_capacity(N), ...];
    loop {
        let events = oob_cpu_buf.read_events(&mut buffers).unwrap();
        for buf in &mut buffers[..events.read] {
            let sub: Bytes = buf.split_off(n).into();
            process_sub_buf(sub);
        }
        ...
    }

This is a common way to process perf bufs, where a sub buffer is split
off from the original buffer and then processed. In the next iteration
of the loop when it's time to read again, two things can happen:

- if processing of the sub buffer is complete and `sub` has been
dropped, read_events() will call buf.reserve(sample_size) and hit a fast
path in BytesMut that will just restore the original capacity of the
buffer (assuming sample_size <= N).

- if processing of the sub buffer hasn't ended (eg the buffer has been
stored or is being processed in another thread),
buf.reserve(sample_size) will actually allocate the new memory required
to read the sample.

In other words, calling buf.reserve(sample_size) inside read_events()
simplifies doing zero-copy processing of buffers in many cases.
Alessandro Decina f75d968657
Merge pull request from nak3/pub-ops 
aya-bpf: expose bpf_sock_ops of SockOpsContext
Alessandro Decina 5356e21b00
Merge pull request from nak3/pub-sk-msg 
aya-bpf: expose sk_msg_md of SkMsgContext
Kenjiro Nakayama 360560ec4e aya-bpf: expose sk_msg_md of SkMsgContext 
This patch expose sk_msg_md of SkMsgContext.
Kenjiro Nakayama 6bc5a4d82d aya-bpf: expose bpf_sock_ops of SockOpsContext 
This patch expose bpf_sock_ops of `SockOpsContext`.
Alessandro Decina f01497e021 (cargo-release) version 0.10.7
Alessandro Decina 37afde3fca aya-gen: fix lint error
Alessandro Decina 9a642d373f aya: fix lint errors
Alessandro Decina 5390fb1ee1
Merge pull request from vadorovsky/sk-buff-socket-uid 
bpf: sk_buff: Add get_socket_uid method to SkBuffContext
Alessandro Decina d690710337
Merge pull request from nak3/fix-socket_filter 
Fix socket_filter section match
Alessandro Decina 3dc9308c8e
Merge pull request from dave-tucker/fix_cgroup_skb_attach_v2 
aya: Fix Loading from cgroup/skb sections
Alessandro Decina 02c376ceb7
Merge pull request from Tuetuopay/pod-arrays 
aya: implement Pod for arrays of Pod types
Alessandro Decina 5269ab5b1c
Merge pull request from vadorovsky/fix-doc-set-global 
bpf: Improve documentation of set_global method
Michal Rostecki 7dd2e3d1f8 bpf: Improve documentation of set_global method 
Use `static` instead of `const` and mention the necessity of using
`core::ptr::read_volatile`.

Signed-off-by: Michal Rostecki <vadorovsky@gmail.com>
Alessandro Decina 7fdf37ad51
Merge pull request from hi120ki/fix-typo-fentry 
fix typo in aya/src/programs/fentry.rs
Hi120ki ab462533c7 fix typo in aya/src/programs/fentry.rs
Michal Rostecki 34d74fcd3b bpf: sk_buff: Add get_socket_uid method to SkBuffContext 
This change exposes the BPF helper bpf_socket_get_uid as a public method
of SkBuffContext, which allows to get the owner UID of the socket
associated to the sk_buff stored in the context.

Signed-off-by: Michal Rostecki <vadorovsky@gmail.com>
Alessandro Decina d3356398f5
Merge pull request from alessandrod/hash-map-get-mut 
bpf: hash_map: add get_mut() method
Alessandro Decina ecd6a6e96b bpf: hash_map: add get_mut() method
Kenjiro Nakayama 5725a97648 Fix unit test
Kenjiro Nakayama 9e41317ca6 Fix socket_filter section match 
`BPF_PROG_TYPE_SOCKET_FILTER` program expands the sectionname's kind with `socket` not `socket_filter`.
So current eBPF program with socket filter always fails.

This patch fixes it.

Fix https://github.com/aya-rs/aya/issues/227
Alessandro Decina e0d818ff2d
Merge pull request from xonatius/patch-1 
Fix typo in README.md
Daniil Bondarev 49e998dc7e
Fix typo in aya/README.md
Daniil Bondarev ebb91f3c6f
Fix typo in README.md
Alessandro Decina 01fe3a6b5e
Merge pull request from nimrodshn/bpf_lpm_trie 
Add LPMTrie Map to aya-bpf for BPF programs
Nimrod Shneor d0b6daa091 Add LPMTrie Map to aya-bpf for BPF programs
Dave Tucker 5ee1321765 aya: Fix Loading from cgroup/skb sections 
fa037a88e2 allowed for cgroup skb programs
that did not specify an attach direction to use the cgroup/skb section
name per the convention established in libbpf. It did not add the
necessary code to load programs from those sections which is added in
this commit

Signed-off-by: Dave Tucker <dave@dtucker.co.uk>
Dave Tucker 00e34ec29c
Merge pull request from aya-rs/dependabot/cargo/parking_lot-0.12.0 
build(deps): update parking_lot requirement from 0.11.1 to 0.12.0
Tuetuopay 08211f6132 aya: implement Pod for arrays of Pod types 
If a type is POD (meaning it can be converted to a byte array), then an
array of such type is POD.

Signed-off-by: Tuetuopay <tuetuopay@me.com>
Dave Tucker 5cfecbdd8e
Merge pull request from dave-tucker/fix_docs 
ci: lint: aya: Skip doctests with miri
Dave Tucker 3d820ee473 ci: lint: aya: Skip doctests with miri 
Signed-off-by: Dave Tucker <dave@dtucker.co.uk>
Alessandro Decina 5421b71b5b
Merge pull request from dave-tucker/fix_docs 
ci: Fix aya-bpf workflow
Dave Tucker 1f047f0dbe ci: Fix aya-bpf workflow 
This was testing the aya crate with the nightly toolchain which wasn't
what was intented

Signed-off-by: Dave Tucker <dave@dtucker.co.uk>
dependabot[bot] ab7eed2759
build(deps): update parking_lot requirement from 0.11.1 to 0.12.0 
Updates the requirements on [parking_lot](https://github.com/Amanieu/parking_lot) to permit the latest version.
- [Release notes](https://github.com/Amanieu/parking_lot/releases)
- [Changelog](https://github.com/Amanieu/parking_lot/blob/master/CHANGELOG.md)
- [Commits](https://github.com/Amanieu/parking_lot/compare/0.11.1...0.12.0)

---
updated-dependencies:
- dependency-name: parking_lot
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Alessandro Decina 2a18239346
Merge pull request from nimrodshn/add_lpm_trie 
Add support for BPF_MAP_TYPE_LPM_TRIE
Nimrod Shneor c6e66d8080 Fix : Add support for BPF_MAP_TYPE_LPM_TRIE map
Alessandro Decina 17a3959e87
Merge pull request from dave-tucker/fix-image-build 
ci: Fix image build workflow
Dave Tucker d55a47fb3d ci: Fix image build workflow 
Signed-off-by: Dave Tucker <dave@dtucker.co.uk>
Alessandro Decina 9f711e44fe
Merge pull request from dave-tucker/moar-tests 
Regression Test Framework Improvements