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author | gVisor bot <gvisor-bot@google.com> | 2020-11-19 04:25:26 +0000 |
---|---|---|
committer | gVisor bot <gvisor-bot@google.com> | 2020-11-19 04:25:26 +0000 |
commit | 3f09108ecd49e1c40544d593b145ee6a6815717c (patch) | |
tree | 6a625a37ab2e978d9f64bc456e8ae42c27415e3c /pkg/tcpip | |
parent | 7191d68b80ff5c560406c286eae8c278fe6544b8 (diff) | |
parent | 93750a600bb01fdc90703b8fa9ea2e163c615c6c (diff) |
Merge release-20201109.0-83-g93750a600 (automated)
Diffstat (limited to 'pkg/tcpip')
-rw-r--r-- | pkg/tcpip/stack/route.go | 41 |
1 files changed, 0 insertions, 41 deletions
diff --git a/pkg/tcpip/stack/route.go b/pkg/tcpip/stack/route.go index 13b42d34b..f0b256507 100644 --- a/pkg/tcpip/stack/route.go +++ b/pkg/tcpip/stack/route.go @@ -397,23 +397,6 @@ func (r *Route) Clone() Route { return *r } -// MakeLoopedRoute duplicates the given route with special handling for routes -// used for sending multicast or broadcast packets. In those cases the -// multicast/broadcast address is the remote address when sending out, but for -// incoming (looped) packets it becomes the local address. Similarly, the local -// interface address that was the local address going out becomes the remote -// address coming in. This is different to unicast routes where local and -// remote addresses remain the same as they identify location (local vs remote) -// not direction (source vs destination). -func (r *Route) MakeLoopedRoute() Route { - l := r.Clone() - if r.RemoteAddress == header.IPv4Broadcast || header.IsV4MulticastAddress(r.RemoteAddress) || header.IsV6MulticastAddress(r.RemoteAddress) { - l.RemoteAddress, l.LocalAddress = l.LocalAddress, l.RemoteAddress - l.RemoteLinkAddress = l.LocalLinkAddress - } - return l -} - // Stack returns the instance of the Stack that owns this route. func (r *Route) Stack() *Stack { return r.outgoingNIC.stack @@ -434,27 +417,3 @@ func (r *Route) IsOutboundBroadcast() bool { // Only IPv4 has a notion of broadcast. return r.isV4Broadcast(r.RemoteAddress) } - -// isInboundBroadcast returns true if the route is for an inbound broadcast -// packet. -func (r *Route) isInboundBroadcast() bool { - // Only IPv4 has a notion of broadcast. - return r.isV4Broadcast(r.LocalAddress) -} - -// ReverseRoute returns new route with given source and destination address. -func (r *Route) ReverseRoute(src tcpip.Address, dst tcpip.Address) Route { - return Route{ - NetProto: r.NetProto, - LocalAddress: dst, - LocalLinkAddress: r.RemoteLinkAddress, - RemoteAddress: src, - RemoteLinkAddress: r.LocalLinkAddress, - Loop: r.Loop, - localAddressNIC: r.localAddressNIC, - localAddressEndpoint: r.localAddressEndpoint, - outgoingNIC: r.outgoingNIC, - linkCache: r.linkCache, - linkRes: r.linkRes, - } -} |