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wgengine/magicsock: skip netcheck if external STUN aren't in use

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Updates #146 (not a complete fix yet probably)
This commit is contained in:
Brad Fitzpatrick 2020-03-06 07:47:54 -08:00
parent fe0051fafd
commit fbab12c94c
1 changed files with 15 additions and 0 deletions
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15
wgengine/magicsock/magicsock.go
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@ -247,8 +247,23 @@ func (c *Conn) epUpdate(ctx context.Context) {
}
}
func (c *Conn) hasExternalSTUN() bool {
for _, hp := range c.stunServers {
if strings.Contains(hp, ".com:") {
// matches stun.l.google.com:19302 or derp\d+.tailscale.com:nnnn
return true
}
}
return false
}
func (c *Conn) updateNetInfo() {
logf := logger.WithPrefix(c.logf, "updateNetInfo: ")
if !c.hasExternalSTUN() {
logf("skipping in non-production mode")
return
}
ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
defer cancel()