diff options
Diffstat (limited to 'pkg/tcpip/network/ipv6/ipv6.go')
| -rw-r--r-- | pkg/tcpip/network/ipv6/ipv6.go | 34 |
1 files changed, 20 insertions, 14 deletions
diff --git a/pkg/tcpip/network/ipv6/ipv6.go b/pkg/tcpip/network/ipv6/ipv6.go index f48d120c5..cdb8284a2 100644 --- a/pkg/tcpip/network/ipv6/ipv6.go +++ b/pkg/tcpip/network/ipv6/ipv6.go @@ -37,23 +37,21 @@ const ( // maxTotalSize is maximum size that can be encoded in the 16-bit // PayloadLength field of the ipv6 header. maxPayloadSize = 0xffff + + // defaultIPv6HopLimit is the default hop limit for IPv6 Packets + // egressed by Netstack. + defaultIPv6HopLimit = 255 ) type address [header.IPv6AddressSize]byte type endpoint struct { - nicid tcpip.NICID - id stack.NetworkEndpointID - address address - linkEP stack.LinkEndpoint - dispatcher stack.TransportDispatcher -} - -func newEndpoint(nicid tcpip.NICID, addr tcpip.Address, dispatcher stack.TransportDispatcher, linkEP stack.LinkEndpoint) *endpoint { - e := &endpoint{nicid: nicid, linkEP: linkEP, dispatcher: dispatcher} - copy(e.address[:], addr) - e.id = stack.NetworkEndpointID{tcpip.Address(e.address[:])} - return e + nicid tcpip.NICID + id stack.NetworkEndpointID + address address + linkEP stack.LinkEndpoint + linkAddrCache stack.LinkAddressCache + dispatcher stack.TransportDispatcher } // MTU implements stack.NetworkEndpoint.MTU. It returns the link-layer MTU minus @@ -93,7 +91,7 @@ func (e *endpoint) WritePacket(r *stack.Route, hdr *buffer.Prependable, payload ip.Encode(&header.IPv6Fields{ PayloadLength: length, NextHeader: uint8(protocol), - HopLimit: 65, + HopLimit: defaultIPv6HopLimit, SrcAddr: tcpip.Address(e.address[:]), DstAddr: r.RemoteAddress, }) @@ -154,7 +152,15 @@ func (*protocol) ParseAddresses(v buffer.View) (src, dst tcpip.Address) { // NewEndpoint creates a new ipv6 endpoint. func (p *protocol) NewEndpoint(nicid tcpip.NICID, addr tcpip.Address, linkAddrCache stack.LinkAddressCache, dispatcher stack.TransportDispatcher, linkEP stack.LinkEndpoint) (stack.NetworkEndpoint, *tcpip.Error) { - return newEndpoint(nicid, addr, dispatcher, linkEP), nil + e := &endpoint{ + nicid: nicid, + linkEP: linkEP, + linkAddrCache: linkAddrCache, + dispatcher: dispatcher, + } + copy(e.address[:], addr) + e.id = stack.NetworkEndpointID{LocalAddress: tcpip.Address(e.address[:])} + return e, nil } // SetOption implements NetworkProtocol.SetOption. |