This patch set adds a new BPF helper bpf_skc_to_unix_sock(). The helper is used in tracing programs to cast a socket pointer to a unix_sock pointer. Hengqi Chen (2): bpf: Add bpf_skc_to_unix_sock() helper selftests/bpf: Test bpf_skc_to_unix_sock() include/linux/bpf.h | 1 + include/uapi/linux/bpf.h | 7 +++ kernel/trace/bpf_trace.c | 2 + net/core/filter.c | 23 ++++++++ scripts/bpf_doc.py | 12 +++-- tools/include/uapi/linux/bpf.h | 7 +++ .../bpf/prog_tests/skc_to_unix_sock.c | 54 +++++++++++++++++++ .../bpf/progs/test_skc_to_unix_sock.c | 28 ++++++++++ 8 files changed, 129 insertions(+), 5 deletions(-) create mode 100644 tools/testing/selftests/bpf/prog_tests/skc_to_unix_sock.c create mode 100644 tools/testing/selftests/bpf/progs/test_skc_to_unix_sock.c -- 2.25.1