diff options
Diffstat (limited to 'pkg/tcpip/stack/stack.go')
| -rw-r--r-- | pkg/tcpip/stack/stack.go | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/pkg/tcpip/stack/stack.go b/pkg/tcpip/stack/stack.go index 047b704e0..cbfe5c3c7 100644 --- a/pkg/tcpip/stack/stack.go +++ b/pkg/tcpip/stack/stack.go @@ -308,6 +308,9 @@ type Stack struct { // clock is used to generate user-visible times. clock tcpip.Clock + + // handleLocal allows non-loopback interfaces to loop packets. + handleLocal bool } // Options contains optional Stack configuration. @@ -319,6 +322,11 @@ type Options struct { // Stats are optional statistic counters. Stats tcpip.Stats + + // HandleLocal indicates whether packets destined to their source + // should be handled by the stack internally (true) or outside the + // stack (false). + HandleLocal bool } // New allocates a new networking stack with only the requested networking and @@ -343,6 +351,7 @@ func New(network []string, transport []string, opts Options) *Stack { PortManager: ports.NewPortManager(), clock: clock, stats: opts.Stats.FillIn(), + handleLocal: opts.HandleLocal, } // Add specified network protocols. @@ -764,7 +773,7 @@ func (s *Stack) FindRoute(id tcpip.NICID, localAddr, remoteAddr tcpip.Address, n if id != 0 && !needRoute { if nic, ok := s.nics[id]; ok { if ref := s.getRefEP(nic, localAddr, netProto); ref != nil { - return makeRoute(netProto, ref.ep.ID().LocalAddress, remoteAddr, nic.linkEP.LinkAddress(), ref, multicastLoop && !nic.loopback), nil + return makeRoute(netProto, ref.ep.ID().LocalAddress, remoteAddr, nic.linkEP.LinkAddress(), ref, s.handleLocal && !nic.loopback, multicastLoop && !nic.loopback), nil } } } else { @@ -780,7 +789,7 @@ func (s *Stack) FindRoute(id tcpip.NICID, localAddr, remoteAddr tcpip.Address, n remoteAddr = ref.ep.ID().LocalAddress } - r := makeRoute(netProto, ref.ep.ID().LocalAddress, remoteAddr, nic.linkEP.LinkAddress(), ref, multicastLoop && !nic.loopback) + r := makeRoute(netProto, ref.ep.ID().LocalAddress, remoteAddr, nic.linkEP.LinkAddress(), ref, s.handleLocal && !nic.loopback, multicastLoop && !nic.loopback) if needRoute { r.NextHop = route.Gateway } |