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authorLawrence Brakmo <brakmo@fb.com>2018-01-25 16:14:14 -0800
committerAlexei Starovoitov <ast@kernel.org>2018-01-25 16:41:14 -0800
commita31ad29e6a30cb0b9084a9425b819cdcd97273ce (patch)
tree33ed37e633027ebf8b53a289eaddc687b1756368 /tools
parentbpf: Add sock_ops R/W access to tclass (diff)
downloadlinux-dev-a31ad29e6a30cb0b9084a9425b819cdcd97273ce.tar.xz
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bpf: Add BPF_SOCK_OPS_RETRANS_CB
Adds support for calling sock_ops BPF program when there is a retransmission. Three arguments are used; one for the sequence number, another for the number of segments retransmitted, and the last one for the return value of tcp_transmit_skb (0 => success). Does not include syn-ack retransmissions. New op: BPF_SOCK_OPS_RETRANS_CB. Signed-off-by: Lawrence Brakmo <brakmo@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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