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478 Commits (ce93774e0a75c133eff98b66ef038bde404d328c)
 

Author SHA1 Message Date
Alessandro Decina c3cd45c6df
Merge pull request from dave-tucker/release-notes 
ci: Add dependencies/codegen/docs to rel notes
Dave Tucker d2449ca292 ci: add docs to release notes 
Signed-off-by: Dave Tucker <dave@dtucker.co.uk>
Dave Tucker fbed584f78 ci: Add dependencies/codegen to rel notes 
Signed-off-by: Dave Tucker <dave@dtucker.co.uk>
Alessandro Decina 2ea6d68544
Merge pull request from dave-tucker/release-notes 
ci: Add autogenerated release notes
Dave Tucker dc16739b06 ci: Add autogenerated release notes 
Signed-off-by: Dave Tucker <dave@dtucker.co.uk>
Alessandro Decina 923cd9b767
Merge pull request from vadorovsky/args-mut-ptr 
aya-bpf: Add bpf_probe_write_user helper
Michal Rostecki 1df3b17d29 aya-bpf: Add bpf_probe_write_user helper 
This helper allows to write to mutable pointers in the userspace, which
come from userspace functions that uprobes attach to.

Signed-off-by: Michal Rostecki <mrostecki@opensuse.org>
Alessandro Decina 5836b3f1b8
Merge pull request from willfindlay/program_array 
bpf/maps: implement ProgramArray
Alessandro Decina 149fa86de7
Merge pull request from willfindlay/fix-tests 
bpf/macros: fix tests
William Findlay b28ae97053
bpf/macros: fix tests 
Doctests were broken due to depencencies on a generated vmlinux, incorrect function
signatures, and a missing unsafe keyword.
William Findlay df26fd94a7
bpf/program_array: use never type, add unsafe flag, and document safety
William Findlay ff14493751
bpf/maps: implement ProgramArray 
This PR implements the ProgramArray map type in aya-bpf. Includes a convenient tail_call
method that wraps the bpf_tail_call helper.
Alessandro Decina faa36763f7
Merge pull request from dave-tucker/ro-maps 
Mark .rodata maps as readonly and freeze on load
Michal Rostecki 54377b6140 aya-bpf: Allow to convert probe arguments to mutable pointers 
Before this change, arguments fetched with `arg` from `ProbeContext`
could be only fetched as const pointers. This change allows to get mut
pointers as well.

Signed-off-by: Michal Rostecki <mrostecki@opensuse.org>
Michal Rostecki 5d8afc58f4 aya-bpf-macros: Fix LSM macro documentation 
It was causing `cargo doc` inside bpf/ to fail.

Signed-off-by: Michal Rostecki <mrostecki@opensuse.org>
Dave Tucker 65a0b83205 Mark .rodata maps as readonly and freeze on load 
This commit marks .rodata maps as BPF_F_RDONLY_PROG when loaded to
prevent a BPF program mutating them.

Initial map data is populated by the loader using the new
`BpfLoader::set_global()` API. The loader will mark
is marked as frozen using bpf_map_freeze to prevent map data
being changed from userspace.

Signed-off-by: Dave Tucker <dave@dtucker.co.uk>
Alessandro Decina 3a4c84fe17
Merge pull request from aya-rs/codegen 
Update libbpf to 19656636a9b9a2de1f71fa3135709295c16701cc
Dave Tucker 2b7dda766f btf: Fix for rename of BPF_ -> BPF_CORE_ 
Signed-off-by: Dave Tucker <dave@dtucker.co.uk>
dave-tucker 05d4bc39ea Update libbpf to 19656636a9b9a2de1f71fa3135709295c16701cc
Dave Tucker ef42739c65 .github: force push to codegen branch 
Signed-off-by: Dave Tucker <dave@dtucker.co.uk>
Dave Tucker f8021c33fc codegen: Add bindings for BPF_F flags 
Signed-off-by: Dave Tucker <dave@dtucker.co.uk>
Dave Tucker 23d1920854 codegen: add bindings for btf structs 
This adds `bpf_btf_info` which can be used to get BPF information via a
syscall. It also adds `btf_line_info` and `btf_func_info` which are
required to parse the line and func info sections of BTF

Signed-off-by: Dave Tucker <dave@dtucker.co.uk>
Dave Tucker facb01f34b ci: Use crabby-the-crab 
Signed-off-by: Dave Tucker <dave@dtucker.co.uk>
Michal Rostecki 7e2fcd1d6d Support for fentry and fexit programs 
fentry and fexit programs are similar to kprobe and kretprobe, but they
are newer and they have practically zero overhead to call before or
after kernel function. Also, fexit programs are focused on access to
arguments rather than the return value.

Those kind of programs were introduced in the following patchset:

https://lwn.net/Articles/804112/

Signed-off-by: Michal Rostecki <mrostecki@opensuse.org>
dependabot[bot] 54b0c67795 build(deps): update object requirement from 0.27 to 0.28 
Updates the requirements on [object](https://github.com/gimli-rs/object) to permit the latest version.
- [Release notes](https://github.com/gimli-rs/object/releases)
- [Changelog](https://github.com/gimli-rs/object/blob/master/CHANGELOG.md)
- [Commits](https://github.com/gimli-rs/object/compare/0.27.0...0.28.1)

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

Signed-off-by: dependabot[bot] <support@github.com>
Alessandro Decina 317fd576b4
Merge pull request from dave-tucker/nightly 
github: Set toolchain override
Dave Tucker 7e7314ff2b github: Set toolchain override 
This ensures that the cache action uses the correct Rust version

Signed-off-by: Dave Tucker <dave@dtucker.co.uk>
Alessandro Decina 6313ddfe0c
Merge pull request from nimrodshn/add_impl_pod_for_u128 
Implement Pod for u128 and i128
Ubuntu 24a292f605 Implement Pod for u128
Alessandro Decina f34b76c8d3
Merge pull request from aya-rs/codegen 
Update libbpf to 93e89b34740c509406e948c78a404dd2fba67b8b
dave-tucker 17d43cd6f8 Update libbpf to 93e89b34740c509406e948c78a404dd2fba67b8b
Alessandro Decina 26d188c659
Merge pull request from dave-tucker/btf 
obj: Improve section detection
Alessandro Decina 32dc8a0d97
Merge pull request from eero-thia/thia/safe_map 
aya-bpf: remove unnecessary unsafe markers on map functions.
Alessandro Decina 441a660b3e
Merge pull request from eero-thia/thia/safe_iter 
aya: Remove unnecessary unsafe markers on map iteration.
Thia Wyrod b655cf973f
aya-bpf: remove unnecessary unsafe markers on map functions. 
Map lookup and deletion can yield stale keys and values by virtue of
sharing a data structure with userspace programs and other BPF programs
which can modify it. However, all accesses remain perfectly safe and will
not cause memory corruption or data races.
Thia Wyrod 18970369e2
aya: Remove unnecessary unsafe markers on map iteration. 
Map iteration can yield stale keys and values by virtue of sharing a
data structure with BPF programs which can modify it. However, all
accesses remain perfectly safe and will not cause memory corruption or
data races.
Alessandro Decina 07a6016ebb
Merge pull request from eero-thia/thia/dedup 
aya: eliminate name duplication in maps and programs.
Thia Wyrod f56dd0a70b
aya: eliminate name duplication in maps and programs. 
Map and ProgramData objects had unnecessarily cloned strings for their
names, despite them being just as easily available to external users via
bpf.maps() and bpf.programs().
Alessandro Decina 8043451973 bpf: re-export Lru hash maps from aya_bpf::maps
Alessandro Decina a340c2a9fa
Merge pull request from wg/main 
aya: use correct program name when relocating
Will bb8a813eef aya: use correct program name when relocating
Dave Tucker e4d9774bf7 obj: Improve section detection 
This commit improves section detection.
Previously, a section named "xdp_metadata" would be interpretted as a
program section, which is incorrect. This commit first attempts to
identify a BPF section by name, then by section.kind() ==
SectionKind::Text (executable code). The computed section kind is
stored in the Section so variants can be easily matched on later.

Signed-off-by: Dave Tucker <dave@dtucker.co.uk>
Alessandro Decina c0f695c4b6 bpf: Add LruHashMap and LruPerCpuHashMap
Alessandro Decina a03426f194
Merge pull request from eero-thia/thia/impl_trait 
aya: remove unnecessary usage of &dyn trait in favor of impl trait.
Alessandro Decina 61299e128e
Merge pull request from eero-thia/thia/xdp_metadata 
aya-bpf: expose xdp_md of XdpContext and add metadata functions.
Thia Wyrod d280b856bd
aya-bpf: expose xdp_md of XdpContext and add metadata functions.
Thia Wyrod daa7ea6d0d
aya: remove unnecessary usage of &dyn trait in favor of impl trait. 
This should improve performance in most situations by eliminating
unnecessary fat pointer indirection.
Alessandro Decina 98b36b23bc
Merge pull request from eero-thia/thia/close 
aya: close file descriptors on Map drop.
Alessandro Decina 2955ca1d1f
Merge pull request from eero-thia/thia/programs_mut 
aya: programs_mut iterator to complement programs.
Thia Wyrod c7f8db9a0b
aya: programs_mut iterator to complement programs.