diff options
| author | Bert Muthalaly <stijlist@google.com> | 2018-09-05 17:33:18 -0700 |
|---|---|---|
| committer | Shentubot <shentubot@google.com> | 2018-09-05 17:34:25 -0700 |
| commit | 5685d6b5add2acce9618aa908b846f5ce3658346 (patch) | |
| tree | ca93fb55c83ebf77806957c73c3951fc01844560 /pkg/tcpip/network/ipv4/ipv4.go | |
| parent | fe8ca76c22ff03c9ae8bf524031553d65b30f53d (diff) | |
Update {LinkEndpoint,NetworkEndpoint}#WritePacket to take a VectorisedView
Makes it possible to avoid copying or allocating in cases where DeliverNetworkPacket (rx)
needs to turn around and call WritePacket (tx) with its VectorisedView.
Also removes the restriction on having VectorisedViews with multiple views in the write path.
PiperOrigin-RevId: 211728717
Change-Id: Ie03a65ecb4e28bd15ebdb9c69f05eced18fdfcff
Diffstat (limited to 'pkg/tcpip/network/ipv4/ipv4.go')
| -rw-r--r-- | pkg/tcpip/network/ipv4/ipv4.go | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/pkg/tcpip/network/ipv4/ipv4.go b/pkg/tcpip/network/ipv4/ipv4.go index 143d8e73e..478957827 100644 --- a/pkg/tcpip/network/ipv4/ipv4.go +++ b/pkg/tcpip/network/ipv4/ipv4.go @@ -106,9 +106,9 @@ func (e *endpoint) MaxHeaderLength() uint16 { } // WritePacket writes a packet to the given destination address and protocol. -func (e *endpoint) WritePacket(r *stack.Route, hdr *buffer.Prependable, payload buffer.View, protocol tcpip.TransportProtocolNumber) *tcpip.Error { +func (e *endpoint) WritePacket(r *stack.Route, hdr *buffer.Prependable, payload buffer.VectorisedView, protocol tcpip.TransportProtocolNumber) *tcpip.Error { ip := header.IPv4(hdr.Prepend(header.IPv4MinimumSize)) - length := uint16(hdr.UsedLength() + len(payload)) + length := uint16(hdr.UsedLength() + payload.Size()) id := uint32(0) if length > header.IPv4MaximumHeaderSize+8 { // Packets of 68 bytes or less are required by RFC 791 to not be |