esp6: add gso_segment for esp6 beet mode

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Similar to xfrm6_tunnel/transport_gso_segment(), _gso_segment()
is added to do gso_segment for esp6 beet mode. Before calling
inet6_offloads[proto]->callbacks.gso_segment, it needs to do:

  - Get the upper proto from ph header to get its gso_segment
    when xo->proto is IPPROTO_BEETPH.

  - Add SKB_GSO_TCPV6 to gso_type if x->sel.family != AF_INET6
    and the proto == IPPROTO_TCP, so that the current tcp ipv6
    packet can be segmented.

  - Calculate a right value for skb->transport_header and move
    skb->data to the transport header position.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>

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Xin Long 2020-03-26 17:02:30 +08:00 • committed by Steffen Klassert

parent 384a46ea7b

commit 7f9e40eb18

1 changed files with 36 additions and 0 deletions

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net/ipv6/esp6_offload.c

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