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authorgVisor bot <gvisor-bot@google.com>2020-09-27 02:27:53 +0000
committergVisor bot <gvisor-bot@google.com>2020-09-27 02:27:53 +0000
commit9177d7067f52b594767f6bf9e1b041ecd7c0d37e (patch)
tree957a0f8a7dc101e75a81cd3d825f63431c8a0545 /pkg/tcpip/network/ipv6/ipv6.go
parent204ecb2a5c047371257eafcbeff7400cd22a4bc3 (diff)
parenta376a0baf362506549fcc58861465fa89ed33f7f (diff)
Merge release-20200921.0-52-ga376a0baf (automated)
Diffstat (limited to 'pkg/tcpip/network/ipv6/ipv6.go')
-rw-r--r--pkg/tcpip/network/ipv6/ipv6.go13
1 files changed, 12 insertions, 1 deletions
diff --git a/pkg/tcpip/network/ipv6/ipv6.go b/pkg/tcpip/network/ipv6/ipv6.go
index 5b1cca180..3d070ddea 100644
--- a/pkg/tcpip/network/ipv6/ipv6.go
+++ b/pkg/tcpip/network/ipv6/ipv6.go
@@ -482,7 +482,18 @@ func (e *endpoint) HandlePacket(r *stack.Route, pkt *stack.PacketBuffer) {
r.Stats().IP.PacketsDelivered.Increment()
// TODO(b/152019344): Send an ICMPv6 Parameter Problem, Code 1 error
// in response to unrecognized next header values.
- e.dispatcher.DeliverTransportPacket(r, p, pkt)
+ switch res := e.dispatcher.DeliverTransportPacket(r, p, pkt); res {
+ case stack.TransportPacketHandled:
+ case stack.TransportPacketDestinationPortUnreachable:
+ // As per RFC 4443 section 3.1:
+ // A destination node SHOULD originate a Destination Unreachable
+ // message with Code 4 in response to a packet for which the
+ // transport protocol (e.g., UDP) has no listener, if that transport
+ // protocol has no alternative means to inform the sender.
+ _ = returnError(r, &icmpReasonPortUnreachable{}, pkt)
+ default:
+ panic(fmt.Sprintf("unrecognized result from DeliverTransportPacket = %d", res))
+ }
}
default: