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linux-yocto/tools/testing/selftests/bpf/config
Willem de Bruijn f6ad6accaa selftests/bpf: expand test_tc_tunnel with SIT encap 
So far, all BPF tc tunnel testcases encapsulate in the same network
protocol. Add an encap testcase that requires updating skb->protocol.

The 6in4 tunnel encapsulates an IPv6 packet inside an IPv4 tunnel.
Verify that bpf_skb_net_grow correctly updates skb->protocol to
select the right protocol handler in __netif_receive_skb_core.

The BPF program should also manually update the link layer header to
encode the right network protocol.

Changes v1->v2
  - improve documentation of non-obvious logic

Signed-off-by: Willem de Bruijn <willemb@google.com>
Tested-by: Alan Maguire <alan.maguire@oracle.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-04-24 01:32:26 +02:00

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CONFIG_BPF=y CONFIG_BPF_SYSCALL=y CONFIG_NET_CLS_BPF=m CONFIG_BPF_EVENTS=y CONFIG_TEST_BPF=m CONFIG_CGROUP_BPF=y CONFIG_NETDEVSIM=m CONFIG_NET_CLS_ACT=y CONFIG_NET_SCHED=y CONFIG_NET_SCH_INGRESS=y CONFIG_NET_IPIP=y CONFIG_IPV6=y CONFIG_NET_IPGRE_DEMUX=y CONFIG_NET_IPGRE=y CONFIG_IPV6_GRE=y CONFIG_CRYPTO_USER_API_HASH=m CONFIG_CRYPTO_HMAC=m CONFIG_CRYPTO_SHA256=m CONFIG_VXLAN=y CONFIG_GENEVE=y CONFIG_NET_CLS_FLOWER=m CONFIG_LWTUNNEL=y CONFIG_BPF_STREAM_PARSER=y CONFIG_XDP_SOCKETS=y CONFIG_FTRACE_SYSCALLS=y CONFIG_IPV6_TUNNEL=y CONFIG_IPV6_GRE=y CONFIG_NET_FOU=m CONFIG_NET_FOU_IP_TUNNELS=y CONFIG_IPV6_FOU=m CONFIG_IPV6_FOU_TUNNEL=m CONFIG_MPLS=y CONFIG_NET_MPLS_GSO=m CONFIG_MPLS_ROUTING=m CONFIG_MPLS_IPTUNNEL=m CONFIG_IPV6_SIT=m