TheArchive/tailscale
1
0
Fork 0
mirror of https://github.com/tailscale/tailscale.git synced 2025-10-15 10:49:18 +00:00
Code Issues Packages Projects Releases Wiki Activity

control/controlknobs, all: add plumbed Knobs type, not global variables

Browse Source 
Previously two tsnet nodes in the same process couldn't have disjoint
sets of controlknob settings from control as both would overwrite each
other's global variables.

This plumbs a new controlknobs.Knobs type around everywhere and hangs
the knobs sent by control on that instead.

Updates #9351

Change-Id: I75338646d36813ed971b4ffad6f9a8b41ec91560
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit is contained in:
Brad Fitzpatrick
2023-09-11 12:03:39 -07:00
committed by Brad Fitzpatrick
parent d050700a3b
commit 4e91cf20a8
19 changed files with 136 additions and 100 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
wgengine/magicsock/magicsock.go
View File

@@ -25,6 +25,7 @@ import (
"golang.org/x/net/ipv4"
"golang.org/x/net/ipv6"
"tailscale.com/control/controlknobs"
"tailscale.com/disco"
"tailscale.com/envknob"
"tailscale.com/health"
@@ -87,6 +88,7 @@ type Conn struct {
testOnlyPacketListener nettype.PacketListener
noteRecvActivity func(key.NodePublic) // or nil, see Options.NoteRecvActivity
netMon *netmon.Monitor // or nil
controlKnobs *controlknobs.Knobs // or nil
// ================================================================
// No locking required to access these fields, either because
@@ -340,6 +342,10 @@ type Options struct {
// NetMon is the network monitor to use.
// With one, the portmapper won't be used.
NetMon *netmon.Monitor
// ControlKnobs are the set of control knobs to use.
// If nil, they're ignored and not updated.
ControlKnobs *controlknobs.Knobs
}
func (o *Options) logf() logger.Logf {
@@ -400,13 +406,14 @@ func newConn() *Conn {
func NewConn(opts Options) (*Conn, error) {
c := newConn()
c.port.Store(uint32(opts.Port))
c.controlKnobs = opts.ControlKnobs
c.logf = opts.logf()
c.epFunc = opts.endpointsFunc()
c.derpActiveFunc = opts.derpActiveFunc()
c.idleFunc = opts.IdleFunc
c.testOnlyPacketListener = opts.TestOnlyPacketListener
c.noteRecvActivity = opts.NoteRecvActivity
c.portMapper = portmapper.NewClient(logger.WithPrefix(c.logf, "portmapper: "), opts.NetMon, nil, c.onPortMapChanged)
c.portMapper = portmapper.NewClient(logger.WithPrefix(c.logf, "portmapper: "), opts.NetMon, nil, opts.ControlKnobs, c.onPortMapChanged)
if opts.NetMon != nil {
c.portMapper.SetGatewayLookupFunc(opts.NetMon.GatewayAndSelfIP)
}