diff options
| author | Kevin Krakauer <krakauer@google.com> | 2019-06-12 15:21:22 -0700 |
|---|---|---|
| committer | Kevin Krakauer <krakauer@google.com> | 2019-06-12 15:21:22 -0700 |
| commit | 0bbbcafd68154e7c7b46692b84a39fb6bb5f1568 (patch) | |
| tree | d8fba01ad76900715665b0418a786de2d77e2a05 /pkg/tcpip/stack/route.go | |
| parent | 06a83df533244dc2b3b8adfc1bf0608d3753c1d9 (diff) | |
| parent | 70578806e8d3e01fae2249b3e602cd5b05d378a0 (diff) | |
Merge branch 'master' into iptables-1-pkg
Change-Id: I7457a11de4725e1bf3811420c505d225b1cb6943
Diffstat (limited to 'pkg/tcpip/stack/route.go')
| -rw-r--r-- | pkg/tcpip/stack/route.go | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/pkg/tcpip/stack/route.go b/pkg/tcpip/stack/route.go index 3d4c282a9..55ed02479 100644 --- a/pkg/tcpip/stack/route.go +++ b/pkg/tcpip/stack/route.go @@ -187,3 +187,13 @@ func (r *Route) Clone() Route { r.ref.incRef() return *r } + +// MakeLoopedRoute duplicates the given route and tweaks it in case of multicast. +func (r *Route) MakeLoopedRoute() Route { + l := r.Clone() + if header.IsV4MulticastAddress(r.RemoteAddress) || header.IsV6MulticastAddress(r.RemoteAddress) { + l.RemoteAddress, l.LocalAddress = l.LocalAddress, l.RemoteAddress + l.RemoteLinkAddress = l.LocalLinkAddress + } + return l +} |