[PATCH bpf-next 0/2] Get ifindex in BPF_SK_LOOKUP prog type
From: Mark Pashmfouroush
Date: Fri Oct 15 2021 - 07:24:10 EST
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.
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(-)
--
2.31.1