v0.2.2-libbpf-0.5.0

v0.2.2-libbpf-0.5.0 contains various new helpers, documentation additions, and bug fixes. This includes official support for libbpf v0.5.0.

See here for information about how we semantically version libbpfgo releases.

What's Changed

• Fix error message in BPFMap.Update by @derekparker in #29
• Change BPFMap method Update to unsafe.Pointer by @grantseltzer in #32
• Makefile: improvements by @rafaeldtinoco in #28
• Fix iterators selftest to use updated unsafe Pointer API by @grantseltzer in #36
• New helper (getter) functions and some refactoring by @geyslan in #41
• fix potential memory leaks by @yanivagman in #46
• Makefile: download libbpf submodule when not found by @geyslan in #44
• examples: Add tcpconnect as a libbpfgo example by @rafaeldtinoco in #45
• Add section in README about release versioning by @grantseltzer in #47
• Fix init_perf_buf error handling by @josedonizetti in #49
• Initial BTF support by @rafaeldtinoco in #50
• libbpfgo: change BPFProg.GetFd() return to int Go type by @geyslan in #52
• helpers: add initial btfinfo by @rafaeldtinoco in #53
• libbpfgo: run lint tool and fix issues by @rafaeldtinoco in #54
• kernel_features: bring MissingKernelConfigOptions to helper by @rafaeldtinoco in #57
• checking if new operation in newbtfino succeeded by @mtcherni95 in #59
• kernel_features: fix tests for new KernelConfig by @rafaeldtinoco in #58
• kernel_features: fix kconfig file read logic for procfs config.gz by @rafaeldtinoco in #63
• osinfo and kernel_features (kernel_config) refactoring and improvements by @rafaeldtinoco in #67
• helpers/kernel_config.go: allow kconfig files logic by @rafaeldtinoco in #70
• Add BPFLink.Destroy by @derekparker in #69
• Update README for semantic versioning by @grantseltzer in #71
• address kconfig post merge issues and document api by @rafaeldtinoco in #73
• Updates by @rafaeldtinoco in #76
• Remove soon to be deprecated resize api by @grantseltzer in #79
• libbpfgo: make AttachTracepoint() signature 1:1 with libbpf by @geyslan in #77
• libbpfgo: do not set btf_custom_path when no BTF is given by @rafaeldtinoco in #82
• Fix NewModuleFromBuffer by @derekparker in #83
• Introduce GetFd() for BPFLink by @geyslan in #78
• selftests: ringbuffers: give time to ringbuffer consumer by @geyslan in #86
• helpers/osinfo: host architecture detection by @rafaeldtinoco in #87
• Add helper to check if ftrace is enabled by @grantseltzer in #94

New Contributors

• @derekparker made their first contribution in #29
• @rafaeldtinoco made their first contribution in #28
• @geyslan made their first contribution in #41
• @josedonizetti made their first contribution in #49
• @mtcherni95 made their first contribution in #59

Full Changelog: v0.1.1...v0.2.2-libbpf-0.5.0

v0.2.1-libbpf-0.4.0

v0.2.1-libbpf-0.4.0

• Extensions to the API for libbpf including the ability to support custom BTF files
• An overhaul to helpers for checking kernel config
• Minor bug fixes

See here for information about how we semantically version libbpfgo releases.

List of changes

29bc86e - Add BPFLink.Destroy (#69) (Derek Parker)
1d1da58 - helpers/common: nit fix: gotfmt (Rafael David Tinoco)
efc3f40 - helpers/kernel_config: AddCustomKernelConfigs prototype change (Rafael David Tinoco)
dc406ff - helpers/kernel_config: force KernelConfigOption type to be used (Rafael David Tinoco)
b137715 - helpers/kernel_config: add custom KernelConfigOption's to the logic (Rafael David Tinoco)
3179924 - helpers/kernel_config.go: create export kConfigFilePath through function (Rafael David Tinoco)
0ccd53e - helpers/osinfo: export functions to access internal fields (Rafael David Tinoco)
a453321 - helpers/common: move CompareKernelRelease to common (Rafael David Tinoco)
afc530e - helpers/osinfo: unexport internal types (Rafael David Tinoco)
4dd0441 - helpers/common: make UnameRelease() a common function (Rafael David Tinoco)
3c1567b - helpers/osinfo: osinfo refactoring for env variable (Rafael David Tinoco)
95380e5 - helpers/kernel_config: kernel_features refactoring (Rafael David Tinoco)
59c9cc3 - helpers/common: functions common to all helpers (Rafael David Tinoco)
43fae25 - helpers/btfinfo: rename to osinfo and improve API (Rafael David Tinoco)
1e07685 - helpers/kernel_features: allow kconfig override (Rafael David Tinoco)
5fde94f - kernel_features: fix kconfig file read logic for procfs config.gz (Rafael David Tinoco)
7b38633 - kernel_features: fix tests for new KernelConfig (Rafael David Tinoco)
c3b9bd6 - checking if new operation in newbtfino succeeded (Michael Tcherniack)
a2a0e13 - kernel_features: bring MissingKernelConfigOptions to helper (#57) (Rafael David Tinoco)
0bbee70 - libbpfgo: run lint tool and fix issues (#54) (Rafael David Tinoco)
e8b2d25 - helpers: add initial btfinfo (Rafael David Tinoco)
0438957 - libbpfgo: change BPFProg.GetFd() return to int Go type (Geyslan G. Bem)
871dc67 - libbpfgo: support external BTF files (Rafael David Tinoco)
239e902 - libbpf: update to latest to have btf_custom_path support (Rafael David Tinoco)
391db95 - Fix init_perf_buf error handling (Jose Donizetti)

v0.1.1

The main new feature of this release is support for loading/attaching of tc bpf programs.

• Adds support for tc programs
• Adds support for uprobe programs
• Selftests
• Improved logo
• Improved README

v0.1.0

An initial baseline release which includes the following features:

• Loading of bpf objects to initialize a type Module.
• Attachment of bpf programs to hooks of the following types:
  • Kprobe
  • Kretprobe
  • LSM
  • Raw tracepoint
  • tracepoint
• A generic BPFMap mechanism for interacting with (updating, getting values, deleting keys, iterating, resizing,...) bpf maps.
• Reading of perf buffers and ring buffers

See the discussion here about moving libbpfgo to its own repository from tracee.