facebook/bpfilter

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eBPF-based packet filtering framework

Stars: 355
Forks: 66
Open beginner issues: 2
Indexed issues: 34
Avg merge: 1d 22h
Merged PRs (30d): 4

Dominant language: C
License: GPL-2.0
Last GitHub push: Sep 16, 2026
Latest indexed: Sep 15, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: good first issue

Beginner friendly Everything

Open All

Add support for CO-RE to elfstubs Open

area: codegen

Difficulty 5/5 Over a week Newbie friendliness 25/100

facebook/bpfilter#585 · Opened Sep 15, 2026
Rename `base` and `ref` in `bfbencher compare` Open

area: tests

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

facebook/bpfilter#584 · Opened Sep 15, 2026
Validate `meta.probability` behaviour for probability > 50% Open

area: codegen

Difficulty 3/5 1-2 days Newbie friendliness 45/100

facebook/bpfilter#583 · Opened Sep 15, 2026
Add kernel test suite Open

area: tests

Difficulty 4/5 3-5 days Newbie friendliness 38/100

facebook/bpfilter#576 · 1 comment · Opened Jul 29, 2026
Improve the documentation for new users Open

area: documentation

Difficulty 5/5 Over a week Newbie friendliness 35/100

facebook/bpfilter#575 · 2 reactions · Opened Jul 29, 2026
Add `--btf-custom-path` option to `bfcli` to allow users to load a different BTF blob Open

area: cli

Difficulty 3/5 1-2 days Newbie friendliness 55/100

facebook/bpfilter#574 · 1 reaction · Opened Jul 29, 2026
Bytecode optimizations Open

area: codegen

Difficulty 5/5 Over a week Newbie friendliness 25/100

facebook/bpfilter#567 · 6 comments · Opened Jul 16, 2026
Make bpfilter stateful Open

area: cli area: codegen

Difficulty 5/5 Over a week Newbie friendliness 25/100

facebook/bpfilter#566 · Opened Jul 16, 2026
Add a `REJECT` action Open

area: cli area: codegen

Difficulty 5/5 Over a week Newbie friendliness 35/100

facebook/bpfilter#565 · Opened Jul 16, 2026
First-hand C++ interface Open

area: deploy

Difficulty 5/5 Over a week Newbie friendliness 35/100

facebook/bpfilter#564 · Opened Jul 16, 2026
Arbitrary bytes comparison Open

area: cli area: codegen

Difficulty 5/5 Over a week Newbie friendliness 30/100

facebook/bpfilter#563 · Opened Jul 16, 2026
Port range in sets Open

area: cli area: codegen good first issue

Difficulty 5/5 Over a week Newbie friendliness 45/100

facebook/bpfilter#562 · Opened Jul 16, 2026
Allow a rule to match all the traffic Open

area: cli area: codegen

Difficulty 4/5 3-5 days Newbie friendliness 48/100

facebook/bpfilter#561 · Opened Jul 16, 2026
User-defined order for chains attached to the same hook Open

area: cli area: loader

Difficulty 5/5 Over a week Newbie friendliness 30/100

facebook/bpfilter#560 · Opened Jul 16, 2026
Unify BPF programs return value Open

area: codegen area: loader

Difficulty 5/5 Over a week Newbie friendliness 30/100

facebook/bpfilter#559 · Opened Jul 16, 2026
`update-set` should accept multiple set deltas Open

area: cli area: codegen good first issue

facebook/bpfilter#555 · 2 comments · 1 assignee · Opened Jun 16, 2026
`update-set` shouldn't regenerate bytecode Open

area: codegen area: loader

Difficulty 5/5 Over a week Newbie friendliness 35/100

facebook/bpfilter#521 · 1 reaction · Opened Apr 22, 2026
Enforce coding style in CI Open

area: tests

Difficulty 5/5 Over a week Newbie friendliness 30/100

facebook/bpfilter#510 · 1 comment · Opened Apr 15, 2026
Make `bf_vector_foreach` compliant with the C standard Open

area: build

Difficulty 2/5 1-3 hours Newbie friendliness 76/100

facebook/bpfilter#509 · 1 comment · Opened Apr 15, 2026
Generate the matchers documentation from the source code Open

area: documentation good first issue

Difficulty 4/5 3-5 days Newbie friendliness 45/100

facebook/bpfilter#481 · 2 comments · Opened Mar 18, 2026
Replace `ifindex=` hook option with `iface=` Open

area: cli good first issue

Difficulty 3/5 1-2 days Newbie friendliness 45/100

facebook/bpfilter#409 · Opened Feb 2, 2026
Investigate using `sched_ext` to prevent program migration while running the benchmark Open

area: tests

Difficulty 4/5 3-5 days Newbie friendliness 35/100

facebook/bpfilter#407 · Opened Jan 30, 2026
Investigate option to build bpfilter without BTF support Open

area: codegen

Difficulty 4/5 3-5 days Newbie friendliness 48/100

facebook/bpfilter#397 · 2 comments · Opened Jan 24, 2026
Enable `clang-tidy`'s `clang-analyzer-unix.Malloc` check Open

area: tests

Difficulty 4/5 3-5 days Newbie friendliness 35/100

facebook/bpfilter#394 · Opened Jan 23, 2026
Investigate `meta.(s|d)addr` feasibility to match against IPv4 or IPv6 addresses Open

area: cli area: codegen

Difficulty 5/5 Over a week Newbie friendliness 35/100

facebook/bpfilter#390 · Opened Jan 22, 2026
Integrate bpfilter to Netfilter Open

area: deploy

Difficulty 5/5 Over a week Newbie friendliness 20/100

facebook/bpfilter#385 · Opened Jan 21, 2026
Automatically detect and flag ABI breakage Open

area: tests

Difficulty 5/5 Over a week Newbie friendliness 30/100

facebook/bpfilter#363 · Opened Jan 12, 2026
Inject latency from a rule's action Open

area: codegen area: loader

Difficulty 4/5 3-5 days Newbie friendliness 35/100

facebook/bpfilter#359 · Opened Jan 12, 2026
Support for wildcard address masks Open

area: cli area: codegen

Difficulty 5/5 Over a week Newbie friendliness 25/100

facebook/bpfilter#320 · 5 comments · Opened Sep 2, 2025
Refactor interface filtering Open

area: cli area: codegen good first issue

Difficulty 4/5 3-5 days Newbie friendliness 35/100

facebook/bpfilter#217 · Opened Feb 12, 2025
Traffic rate limiting Open

area: cli area: codegen

Difficulty 5/5 Over a week Newbie friendliness 25/100

facebook/bpfilter#215 · Opened Feb 12, 2025
Publish `bpfilter`'s DEB package Open

area: deploy

Difficulty 5/5 Over a week Newbie friendliness 25/100

facebook/bpfilter#188 · 2 reactions · Opened Jan 21, 2025
Integrate user-defined BPF (sub)programs Open

area: cli area: codegen

Difficulty 5/5 Over a week Newbie friendliness 30/100

facebook/bpfilter#187 · Opened Jan 21, 2025
Avoid conflicting XDP programs Open

area: loader

Difficulty 4/5 3-5 days Newbie friendliness 45/100

facebook/bpfilter#181 · 1 reaction · Opened Jan 21, 2025

facebook/bpfilter

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