diff options
author | gVisor bot <gvisor-bot@google.com> | 2020-02-04 16:20:16 -0800 |
---|---|---|
committer | gVisor bot <gvisor-bot@google.com> | 2020-02-04 16:20:16 -0800 |
commit | b29aeebaf6bb646dcb67e55b9930902975281685 (patch) | |
tree | 493f780150d02bdfe9aa86171fb3e3c742b65069 /pkg/tcpip/network | |
parent | a26a954946ad2e7910d3ad7578960a93b73a1f9b (diff) | |
parent | d6a2e01d3e57e0837c7e5cfda3b56c4dcfbb4627 (diff) |
Merge pull request #1683 from kevinGC:ipt-udp-matchers
PiperOrigin-RevId: 293243342
Diffstat (limited to 'pkg/tcpip/network')
-rw-r--r-- | pkg/tcpip/network/ipv4/ipv4.go | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/pkg/tcpip/network/ipv4/ipv4.go b/pkg/tcpip/network/ipv4/ipv4.go index 85512f9b2..6597e6781 100644 --- a/pkg/tcpip/network/ipv4/ipv4.go +++ b/pkg/tcpip/network/ipv4/ipv4.go @@ -353,6 +353,11 @@ func (e *endpoint) HandlePacket(r *stack.Route, pkt tcpip.PacketBuffer) { } pkt.NetworkHeader = headerView[:h.HeaderLength()] + hlen := int(h.HeaderLength()) + tlen := int(h.TotalLength()) + pkt.Data.TrimFront(hlen) + pkt.Data.CapLength(tlen - hlen) + // iptables filtering. All packets that reach here are intended for // this machine and will not be forwarded. ipt := e.stack.IPTables() @@ -361,11 +366,6 @@ func (e *endpoint) HandlePacket(r *stack.Route, pkt tcpip.PacketBuffer) { return } - hlen := int(h.HeaderLength()) - tlen := int(h.TotalLength()) - pkt.Data.TrimFront(hlen) - pkt.Data.CapLength(tlen - hlen) - more := (h.Flags() & header.IPv4FlagMoreFragments) != 0 if more || h.FragmentOffset() != 0 { if pkt.Data.Size() == 0 { |