[PATCH bpf-next v2 0/2] Get ifindex in BPF_SK_LOOKUP prog type

BPF_SK_LOOKUP users may want to have access to the ifindex of the skb
which triggered the socket lookup. This may be useful for selectively
applying programmable socket lookup logic to packets that arrive on a
specific interface, or excluding packets from an interface.

v2:
- Fix inaccurate comment (Alexei)
- Add more details to commit messages (John)

Mark Pashmfouroush (2):
  bpf: Add ifindex to bpf_sk_lookup
  selftests/bpf: Add tests for accessing ifindex in bpf_sk_lookup

 include/linux/filter.h                        |  7 ++--
 include/uapi/linux/bpf.h                      |  1 +
 net/core/filter.c                             |  7 ++++
 net/ipv4/inet_hashtables.c                    |  8 ++---
 net/ipv4/udp.c                                |  8 ++---
 net/ipv6/inet6_hashtables.c                   |  8 ++---
 net/ipv6/udp.c                                |  8 ++---
 tools/include/uapi/linux/bpf.h                |  1 +
 .../selftests/bpf/prog_tests/sk_lookup.c      | 31 ++++++++++++++++++
 .../selftests/bpf/progs/test_sk_lookup.c      |  8 +++++
 .../selftests/bpf/verifier/ctx_sk_lookup.c    | 32 +++++++++++++++++++
 11 files changed, 101 insertions(+), 18 deletions(-)

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2.31.1