diff options
Diffstat (limited to 'pkg/tcpip/stack/registration.go')
| -rw-r--r-- | pkg/tcpip/stack/registration.go | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/pkg/tcpip/stack/registration.go b/pkg/tcpip/stack/registration.go index 4795208b4..924790779 100644 --- a/pkg/tcpip/stack/registration.go +++ b/pkg/tcpip/stack/registration.go @@ -55,7 +55,19 @@ type ControlType int // The following are the allowed values for ControlType values. // TODO(http://gvisor.dev/issue/3210): Support time exceeded messages. const ( - ControlNetworkUnreachable ControlType = iota + // ControlAddressUnreachable indicates that an IPv6 packet did not reach its + // destination as the destination address was unreachable. + // + // This maps to the ICMPv6 Destination Ureachable Code 3 error; see + // RFC 4443 section 3.1 for more details. + ControlAddressUnreachable ControlType = iota + ControlNetworkUnreachable + // ControlNoRoute indicates that an IPv4 packet did not reach its destination + // because the destination host was unreachable. + // + // This maps to the ICMPv4 Destination Ureachable Code 1 error; see + // RFC 791's Destination Unreachable Message section (page 4) for more + // details. ControlNoRoute ControlPacketTooBig ControlPortUnreachable @@ -503,6 +515,13 @@ type NetworkInterface interface { WritePacketToRemote(tcpip.LinkAddress, *GSO, tcpip.NetworkProtocolNumber, *PacketBuffer) *tcpip.Error } +// LinkResolvableNetworkEndpoint handles link resolution events. +type LinkResolvableNetworkEndpoint interface { + // HandleLinkResolutionFailure is called when link resolution prevents the + // argument from having been sent. + HandleLinkResolutionFailure(*PacketBuffer) +} + // NetworkEndpoint is the interface that needs to be implemented by endpoints // of network layer protocols (e.g., ipv4, ipv6). type NetworkEndpoint interface { |