Merge branch 'Add skb_adjust_room() for SK_SKB'

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John Fastabend says:

====================
This implements the helper skb_adjust_room() for BPF_SKS_SK_STREAM_VERDICT
programs so we can push/pop headers from the data on recieve. One use
case is to pop TLS headers off kTLS packets.

The first patch implements the helper and the second updates test_sockmap
to use it removing some case handling we had to do earlier to account for
the TLS headers in the kTLS tests.

v1->v2:
 Fix error path for TLS case (Daniel)
 check mode input is 0 because we don't use it now (Daniel)
 Remove incorrect/misleading comment (Lorenz)

Thanks,
John
Acked-by: Martin KaFai Lau <kafai@fb.com>
---
====================

Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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This commit is contained in:

Alexei Starovoitov 2020-10-02 15:18:40 -07:00

parent 60a128b532 91274ca535

commit fb91db01c6

3 changed files with 77 additions and 30 deletions

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46

net/core/filter.c

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34

tools/testing/selftests/bpf/progs/test_sockmap_kern.h

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27

tools/testing/selftests/bpf/test_sockmap.c

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