kernel/tools/testing/selftests/net/skf_net_off.c, branch linux-rolling-stableHosts the 0x221E linux distro kernel.https://universe.0xinfinity.dev/distro/kernel/atom?h=linux-rolling-stable2025-04-10T03:02:51Zselftests/net: test sk_filter support for SKF_NET_OFF on frags2025-04-10T03:02:51ZWillem de Bruijnwillemb@google.com2025-04-08T13:27:49Zurn:sha1:fcd7132cb1f93e4d4594ecb19b8dcecdf0497d9e
Verify that a classic BPF linux socket filter correctly matches
packet contents. Including when accessing contents in an
skb_frag.
1. Open a SOCK_RAW socket with a classic BPF filter on UDP dport 8000.
2. Open a tap device with IFF_NAPI_FRAGS to inject skbs with frags.
3. Send a packet for which the UDP header is in frag[0].
4. Receive this packet to demonstrate that the socket accepted it.
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/20250408132833.195491-3-willemdebruijn.kernel@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>