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* bpf: fix samples xdp_tx_iptunnel and tc_l2_redirect with fake KBUILD_MODNAMEJesper Dangaard Brouer2017-01-201-0/+1
| | | | | | | | | | | | | | Fix build errors for samples/bpf xdp_tx_iptunnel and tc_l2_redirect, when dynamic debugging is enabled (CONFIG_DYNAMIC_DEBUG) by defining a fake KBUILD_MODNAME. Just like Daniel Borkmann fixed other samples/bpf in commit 96a8eb1eeed2 ("bpf: fix samples to add fake KBUILD_MODNAME"). Fixes: 12d8bb64e3f6 ("bpf: xdp: Add XDP example for head adjustment") Fixes: 90e02896f1a4 ("bpf: Add test for bpf_redirect to ipip/ip6tnl") Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* bpf: xdp: Add XDP example for head adjustmentMartin KaFai Lau2016-12-081-0/+236
The XDP prog checks if the incoming packet matches any VIP:PORT combination in the BPF hashmap. If it is, it will encapsulate the packet with a IPv4/v6 header as instructed by the value of the BPF hashmap and then XDP_TX it out. The VIP:PORT -> IP-Encap-Info can be specified by the cmd args of the user prog. Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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