| Message ID | 160160094764.7052.2711632803258461907.stgit@john-Precision-5820-Tower |
|---|---|
| Headers | show |
| Series | Add skb_adjust_room() for SK_SKB | expand |
On Thu, Oct 01, 2020 at 06:09:34PM -0700, John Fastabend wrote: > 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) Acked-by: Martin KaFai Lau <kafai@fb.com>
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 --- John Fastabend (2): bpf, sockmap: add skb_adjust_room to pop bytes off ingress payload bpf, sockmap: update selftests to use skb_adjust_room net/core/filter.c | 46 ++++++++++++++++++++ .../selftests/bpf/progs/test_sockmap_kern.h | 34 +++++++++++---- tools/testing/selftests/bpf/test_sockmap.c | 27 +++--------- 3 files changed, 77 insertions(+), 30 deletions(-) -- Signature