esp4: add gso_segment for esp4 beet mode

Browse source

Similar to xfrm4_tunnel/transport_gso_segment(), _gso_segment()
is added to do gso_segment for esp4 beet mode. Before calling
inet_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_TCPV4 to gso_type if x->sel.family == AF_INET6
    and the proto == IPPROTO_TCP, so that the current tcp ipv4
    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>

...

This commit is contained in:

Xin Long 2020-03-26 17:02:29 +08:00 • committed by Steffen Klassert

parent dda520c4d4

commit 384a46ea7b

1 changed files with 32 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

32

net/ipv4/esp4_offload.c

View file