diff options
| author | gVisor bot <gvisor-bot@google.com> | 2020-04-27 19:30:05 +0000 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2020-04-27 19:30:05 +0000 |
| commit | 78ea854d8b4053e084a87298f0d3f99ac1684473 (patch) | |
| tree | f2c17744543bfb81ea8b3df199941a3b3082c063 /pkg/tcpip/link/loopback/loopback.go | |
| parent | 423dc64b50359fac50ecce08d7a2815ed4607da2 (diff) | |
| parent | 55f0c3316af8ea2a1fcc16511efc580f307623f6 (diff) | |
Merge release-20200323.0-253-g55f0c33 (automated)
Diffstat (limited to 'pkg/tcpip/link/loopback/loopback.go')
| -rw-r--r-- | pkg/tcpip/link/loopback/loopback.go | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/pkg/tcpip/link/loopback/loopback.go b/pkg/tcpip/link/loopback/loopback.go index 073c84ef9..1e2255bfa 100644 --- a/pkg/tcpip/link/loopback/loopback.go +++ b/pkg/tcpip/link/loopback/loopback.go @@ -98,13 +98,13 @@ func (e *endpoint) WritePackets(*stack.Route, *stack.GSO, stack.PacketBufferList // WriteRawPacket implements stack.LinkEndpoint.WriteRawPacket. func (e *endpoint) WriteRawPacket(vv buffer.VectorisedView) *tcpip.Error { - // There should be an ethernet header at the beginning of vv. - hdr, ok := vv.PullUp(header.EthernetMinimumSize) - if !ok { - // Reject the packet if it's shorter than an ethernet header. + // Reject the packet if it's shorter than an ethernet header. + if vv.Size() < header.EthernetMinimumSize { return tcpip.ErrBadAddress } - linkHeader := header.Ethernet(hdr) + + // There should be an ethernet header at the beginning of vv. + linkHeader := header.Ethernet(vv.First()[:header.EthernetMinimumSize]) vv.TrimFront(len(linkHeader)) e.dispatcher.DeliverNetworkPacket(e, "" /* remote */, "" /* local */, linkHeader.Type(), stack.PacketBuffer{ Data: vv, |