diff options
Diffstat (limited to 'pkg/tcpip/transport/raw/endpoint.go')
-rw-r--r-- | pkg/tcpip/transport/raw/endpoint.go | 34 |
1 files changed, 22 insertions, 12 deletions
diff --git a/pkg/tcpip/transport/raw/endpoint.go b/pkg/tcpip/transport/raw/endpoint.go index 7befcfc9b..dd260535f 100644 --- a/pkg/tcpip/transport/raw/endpoint.go +++ b/pkg/tcpip/transport/raw/endpoint.go @@ -27,6 +27,7 @@ package raw import ( "fmt" + "io" "gvisor.dev/gvisor/pkg/sync" "gvisor.dev/gvisor/pkg/tcpip" @@ -190,7 +191,7 @@ func (e *endpoint) SetOwner(owner tcpip.PacketOwner) { } // Read implements tcpip.Endpoint.Read. -func (e *endpoint) Read(addr *tcpip.FullAddress) (buffer.View, tcpip.ControlMessages, *tcpip.Error) { +func (e *endpoint) Read(dst io.Writer, count int, opts tcpip.ReadOptions) (tcpip.ReadResult, *tcpip.Error) { e.rcvMu.Lock() // If there's no data to read, return that read would block or that the @@ -202,20 +203,34 @@ func (e *endpoint) Read(addr *tcpip.FullAddress) (buffer.View, tcpip.ControlMess err = tcpip.ErrClosedForReceive } e.rcvMu.Unlock() - return buffer.View{}, tcpip.ControlMessages{}, err + return tcpip.ReadResult{}, err } pkt := e.rcvList.Front() - e.rcvList.Remove(pkt) - e.rcvBufSize -= pkt.data.Size() + if !opts.Peek { + e.rcvList.Remove(pkt) + e.rcvBufSize -= pkt.data.Size() + } e.rcvMu.Unlock() - if addr != nil { - *addr = pkt.senderAddr + res := tcpip.ReadResult{ + Total: pkt.data.Size(), + ControlMessages: tcpip.ControlMessages{ + HasTimestamp: true, + Timestamp: pkt.timestampNS, + }, + } + if opts.NeedRemoteAddr { + res.RemoteAddr = pkt.senderAddr } - return pkt.data.ToView(), tcpip.ControlMessages{HasTimestamp: true, Timestamp: pkt.timestampNS}, nil + n, err := pkt.data.ReadTo(dst, count, opts.Peek) + if n == 0 && err != nil { + return res, tcpip.ErrBadBuffer + } + res.Count = n + return res, nil } // Write implements tcpip.Endpoint.Write. @@ -363,11 +378,6 @@ func (e *endpoint) finishWrite(payloadBytes []byte, route *stack.Route) (int64, return int64(len(payloadBytes)), nil, nil } -// Peek implements tcpip.Endpoint.Peek. -func (e *endpoint) Peek([][]byte) (int64, *tcpip.Error) { - return 0, nil -} - // Disconnect implements tcpip.Endpoint.Disconnect. func (*endpoint) Disconnect() *tcpip.Error { return tcpip.ErrNotSupported |