TheArchive/tailscale
1
0
Fork 0
mirror of https://github.com/tailscale/tailscale.git synced 2024-11-29 04:55:31 +00:00
Code Issues Packages Projects Releases Wiki Activity

wgengine/netstack: disable RACK on Windows (#10402)

Browse Source 
Updates #9707

Signed-off-by: Jordan Whited <jordan@tailscale.com>
This commit is contained in:
Jordan Whited 2023-11-28 12:12:32 -08:00 committed by GitHub
parent 5f40b8a0bc
commit 5e861c3871
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 11 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
wgengine/netstack/netstack.go
View File

@ -184,6 +184,17 @@ func Create(logf logger.Logf, tundev *tstun.Wrapper, e wgengine.Engine, mc *magi
if tcpipErr != nil {
return nil, fmt.Errorf("could not enable TCP SACK: %v", tcpipErr)
}
if runtime.GOOS == "windows" {
// See https://github.com/tailscale/tailscale/issues/9707
// Windows w/RACK performs poorly. ACKs do not appear to be handled in a
// timely manner, leading to spurious retransmissions and a reduced
// congestion window.
tcpRecoveryOpt := tcpip.TCPRecovery(0)
tcpipErr = ipstack.SetTransportProtocolOption(tcp.ProtocolNumber, &tcpRecoveryOpt)
if tcpipErr != nil {
return nil, fmt.Errorf("could not disable TCP RACK: %v", tcpipErr)
}
}
linkEP := channel.New(512, uint32(tstun.DefaultTUNMTU()), "")
if tcpipProblem := ipstack.CreateNIC(nicID, linkEP); tcpipProblem != nil {
return nil, fmt.Errorf("could not create netstack NIC: %v", tcpipProblem)