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Diffstat (limited to 'pkg/tcpip/transport/tcp')
-rw-r--r--pkg/tcpip/transport/tcp/endpoint.go15
1 files changed, 8 insertions, 7 deletions
diff --git a/pkg/tcpip/transport/tcp/endpoint.go b/pkg/tcpip/transport/tcp/endpoint.go
index 8b9154e69..40cc664c0 100644
--- a/pkg/tcpip/transport/tcp/endpoint.go
+++ b/pkg/tcpip/transport/tcp/endpoint.go
@@ -1874,13 +1874,14 @@ func (e *endpoint) GetSockOpt(opt interface{}) *tcpip.Error {
}
}
-func (e *endpoint) checkV4Mapped(addr *tcpip.FullAddress) (tcpip.NetworkProtocolNumber, *tcpip.Error) {
- unwrapped, netProto, err := e.TransportEndpointInfo.AddrNetProto(*addr, e.v6only)
+// checkV4MappedLocked determines the effective network protocol and converts
+// addr to its canonical form.
+func (e *endpoint) checkV4MappedLocked(addr tcpip.FullAddress) (tcpip.FullAddress, tcpip.NetworkProtocolNumber, *tcpip.Error) {
+ unwrapped, netProto, err := e.TransportEndpointInfo.AddrNetProtoLocked(addr, e.v6only)
if err != nil {
- return 0, err
+ return tcpip.FullAddress{}, 0, err
}
- *addr = unwrapped
- return netProto, nil
+ return unwrapped, netProto, nil
}
// Disconnect implements tcpip.Endpoint.Disconnect.
@@ -1910,7 +1911,7 @@ func (e *endpoint) connect(addr tcpip.FullAddress, handshake bool, run bool) *tc
connectingAddr := addr.Addr
- netProto, err := e.checkV4Mapped(&addr)
+ addr, netProto, err := e.checkV4MappedLocked(addr)
if err != nil {
return err
}
@@ -2276,7 +2277,7 @@ func (e *endpoint) bindLocked(addr tcpip.FullAddress) (err *tcpip.Error) {
}
e.BindAddr = addr.Addr
- netProto, err := e.checkV4Mapped(&addr)
+ addr, netProto, err := e.checkV4MappedLocked(addr)
if err != nil {
return err
}