mirrors/nebula
1
Fork 0
mirror of https://github.com/slackhq/nebula.git synced 2025-12-06 02:30:57 -08:00
Code Issues Projects Releases Packages Wiki Activity Actions

Immediately forward packets received on the nebula TUN device from self to self (#501)

Browse source 
* Immediately forward packets received on the nebula TUN device with a destination of our Nebula VPN IP right back out that same TUN device on MacOS.
This commit is contained in:
brad-defined 2022-06-27 14:36:10 -04:00 • committed by GitHub
parent 0d1ee4214a
commit 169cdbbd35
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
3 changed files with 20 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

12
inside.go
View file

@ -23,8 +23,18 @@ func (f *Interface) consumeInsidePacket(packet []byte, fwPacket *firewall.Packet
return
}
// Ignore packets from self to self
if fwPacket.RemoteIP == f.myVpnIp {
// Immediately forward packets from self to self.
// This should only happen on Darwin-based hosts, which routes packets from
// the Nebula IP to the Nebula IP through the Nebula TUN device.
if immediatelyForwardToSelf {
_, err := f.readers[q].Write(packet)
if err != nil {
f.l.WithError(err).Error("Failed to forward to tun")
}
}
// Otherwise, drop. On linux, we should never see these packets - Linux
// routes packets from the nebula IP to the nebula IP through the loopback device.
return
}