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wgengine/magicsock: add TS_DEBUG_OMIT_LOCAL_ADDRS knob to force STUN use only

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For debugging.
This commit is contained in:
Brad Fitzpatrick 2020-07-02 09:53:10 -07:00
parent 6233fd7ac3
commit 056fbee4ef
1 changed files with 5 additions and 0 deletions
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5
wgengine/magicsock/magicsock.go
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@ -562,6 +562,8 @@ func (c *Conn) goDerpConnect(node int) {
go c.derpWriteChanOfAddr(netaddr.IPPort{IP: derpMagicIPAddr, Port: uint16(node)}, key.Public{})
}
var debugOmitLocalAddresses, _ = strconv.ParseBool(os.Getenv("TS_DEBUG_OMIT_LOCAL_ADDRS"))
// determineEndpoints returns the machine's endpoint addresses. It
// does a STUN lookup (via netcheck) to determine its public address.
//
@ -577,6 +579,9 @@ func (c *Conn) determineEndpoints(ctx context.Context) (ipPorts []string, reason
var eps []string // unique endpoints
addAddr := func(s, reason string) {
if debugOmitLocalAddresses && (reason == "localAddresses" || reason == "socket") {
return
}
if _, ok := already[s]; !ok {
already[s] = reason
eps = append(eps, s)