bpf: Add sock_ops R/W access to tclass

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Adds direct write access to sk_txhash and access to tclass for ipv6
flows through getsockopt and setsockopt. Sample usage for tclass:

  bpf_getsockopt(skops, SOL_IPV6, IPV6_TCLASS, &v, sizeof(v))

where skops is a pointer to the ctx (struct bpf_sock_ops).

Signed-off-by: Lawrence Brakmo <brakmo@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Lawrence Brakmo 2018-01-25 16:14:13 -08:00 • committed by Alexei Starovoitov

parent 44f0e43037

commit 6f9bd3d731

1 changed files with 45 additions and 2 deletions

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net/core/filter.c

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