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netcheck: add hairpinning detection

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Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit is contained in:
Brad Fitzpatrick
2020-02-28 14:14:02 -08:00
parent 1abf2da392
commit bcf3719b9e
4 changed files with 63 additions and 5 deletions
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1
ipn/local.go
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@@ -784,6 +784,7 @@ func (b *LocalBackend) populateNetworkConditions(hi *tailcfg.Hostinfo) {
ni := &tailcfg.NetInfo{
DERPLatency: map[string]float64{},
MappingVariesByDestIP: report.MappingVariesByDestIP,
HairPinning: report.HairPinning,
}
for server, d := range report.DERPLatency {
ni.DERPLatency[server] = d.Seconds()