diff options
| author | gVisor bot <gvisor-bot@google.com> | 2020-09-18 07:51:26 +0000 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2020-09-18 07:51:26 +0000 |
| commit | cc862f9d2c92de1c3cbcfd252a324037663c0e36 (patch) | |
| tree | 01d0e6fd9e30dcb0d4fb48aaa12e6879bbf8451b /pkg/tcpip/transport/tcp | |
| parent | c15f5bc029506bc329ae8c9c01efe12a6dbd23e3 (diff) | |
| parent | 360006d894247ba78771d1244d5b849dabe3ce5a (diff) | |
Merge release-20200907.0-138-g360006d89 (automated)
Diffstat (limited to 'pkg/tcpip/transport/tcp')
| -rw-r--r-- | pkg/tcpip/transport/tcp/protocol.go | 18 |
1 files changed, 2 insertions, 16 deletions
diff --git a/pkg/tcpip/transport/tcp/protocol.go b/pkg/tcpip/transport/tcp/protocol.go index 63ec12be8..74a17af79 100644 --- a/pkg/tcpip/transport/tcp/protocol.go +++ b/pkg/tcpip/transport/tcp/protocol.go @@ -29,6 +29,7 @@ import ( "gvisor.dev/gvisor/pkg/tcpip" "gvisor.dev/gvisor/pkg/tcpip/buffer" "gvisor.dev/gvisor/pkg/tcpip/header" + "gvisor.dev/gvisor/pkg/tcpip/header/parse" "gvisor.dev/gvisor/pkg/tcpip/seqnum" "gvisor.dev/gvisor/pkg/tcpip/stack" "gvisor.dev/gvisor/pkg/tcpip/transport/raw" @@ -506,22 +507,7 @@ func (p *protocol) SynRcvdCounter() *synRcvdCounter { // Parse implements stack.TransportProtocol.Parse. func (*protocol) Parse(pkt *stack.PacketBuffer) bool { - // TCP header is variable length, peek at it first. - hdrLen := header.TCPMinimumSize - hdr, ok := pkt.Data.PullUp(hdrLen) - if !ok { - return false - } - - // If the header has options, pull those up as well. - if offset := int(header.TCP(hdr).DataOffset()); offset > header.TCPMinimumSize && offset <= pkt.Data.Size() { - // TODO(gvisor.dev/issue/2404): Figure out whether to reject this kind of - // packets. - hdrLen = offset - } - - _, ok = pkt.TransportHeader().Consume(hdrLen) - return ok + return parse.TCP(pkt) } // NewProtocol returns a TCP transport protocol. |