diff options
| author | Ian Gudger <igudger@google.com> | 2019-10-07 19:28:26 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2019-10-07 19:29:51 -0700 |
| commit | 7c1587e3401a010d1865df61dbaf117c77dd062e (patch) | |
| tree | 53392ccc3fc1d4cfa967f0d7f72e5920ed18fa5d /pkg/tcpip/stack/route.go | |
| parent | 1de0cf3563502c1460964fc2fc9dca1ee447449a (diff) | |
Implement IP_TTL.
Also change the default TTL to 64 to match Linux.
PiperOrigin-RevId: 273430341
Diffstat (limited to 'pkg/tcpip/stack/route.go')
| -rw-r--r-- | pkg/tcpip/stack/route.go | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/pkg/tcpip/stack/route.go b/pkg/tcpip/stack/route.go index 0b09e6517..22db619a1 100644 --- a/pkg/tcpip/stack/route.go +++ b/pkg/tcpip/stack/route.go @@ -154,11 +154,15 @@ func (r *Route) IsResolutionRequired() bool { } // WritePacket writes the packet through the given route. -func (r *Route) WritePacket(gso *GSO, hdr buffer.Prependable, payload buffer.VectorisedView, protocol tcpip.TransportProtocolNumber, ttl uint8) *tcpip.Error { +func (r *Route) WritePacket(gso *GSO, hdr buffer.Prependable, payload buffer.VectorisedView, protocol tcpip.TransportProtocolNumber, ttl uint8, useDefaultTTL bool) *tcpip.Error { if !r.ref.isValidForOutgoing() { return tcpip.ErrInvalidEndpointState } + if useDefaultTTL { + ttl = r.DefaultTTL() + } + err := r.ref.ep.WritePacket(r, gso, hdr, payload, protocol, ttl, r.loop) if err != nil { r.Stats().IP.OutgoingPacketErrors.Increment() |