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cmd/natc: remove speculative tuning from natc

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These tunings reduced memory usage while the implementation was
struggling with earlier bugs, but will no longer be necessary after
those bugs are addressed.

Depends #14933
Depends #14934
Updates #9707
Updates #10408
Updates tailscale/corp#24483
Updates tailscale/corp#25169

Signed-off-by: James Tucker <james@tailscale.com>
This commit is contained in:
James Tucker 2025-02-06 10:51:01 -08:00 committed by James Tucker
parent e113b106a6
commit e1523fe686
1 changed files with 0 additions and 22 deletions
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22
cmd/natc/natc.go
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@ -27,8 +27,6 @@ import (
"github.com/inetaf/tcpproxy" "github.com/inetaf/tcpproxy"
"github.com/peterbourgon/ff/v3" "github.com/peterbourgon/ff/v3"
"golang.org/x/net/dns/dnsmessage" "golang.org/x/net/dns/dnsmessage"
"gvisor.dev/gvisor/pkg/tcpip"
"gvisor.dev/gvisor/pkg/tcpip/transport/tcp"
"tailscale.com/client/local" "tailscale.com/client/local"
"tailscale.com/envknob" "tailscale.com/envknob"
"tailscale.com/hostinfo" "tailscale.com/hostinfo"
@ -140,26 +138,6 @@ func main() {
} }
// TODO(raggi): this is not a public interface or guarantee. // TODO(raggi): this is not a public interface or guarantee.
ns := ts.Sys().Netstack.Get().(*netstack.Impl) ns := ts.Sys().Netstack.Get().(*netstack.Impl)
tcpRXBufOpt := tcpip.TCPReceiveBufferSizeRangeOption{
Min: tcp.MinBufferSize,
Default: tcp.DefaultReceiveBufferSize,
Max: tcp.MaxBufferSize,
}
if err := ns.SetTransportProtocolOption(tcp.ProtocolNumber, &tcpRXBufOpt); err != nil {
log.Fatalf("could not set TCP RX buf size: %v", err)
}
tcpTXBufOpt := tcpip.TCPSendBufferSizeRangeOption{
Min: tcp.MinBufferSize,
Default: tcp.DefaultSendBufferSize,
Max: tcp.MaxBufferSize,
}
if err := ns.SetTransportProtocolOption(tcp.ProtocolNumber, &tcpTXBufOpt); err != nil {
log.Fatalf("could not set TCP TX buf size: %v", err)
}
mslOpt := tcpip.TCPTimeWaitTimeoutOption(5 * time.Second)
if err := ns.SetTransportProtocolOption(tcp.ProtocolNumber, &mslOpt); err != nil {
log.Fatalf("could not set TCP MSL: %v", err)
}
if *debugPort != 0 { if *debugPort != 0 {
expvar.Publish("netstack", ns.ExpVar()) expvar.Publish("netstack", ns.ExpVar())
} }