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tailcfg, control/controlclient: add tailcfg.PeersChangedPatch [capver 33]

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This adds a lighter mechanism for endpoint updates from control.

Change-Id: If169c26becb76d683e9877dc48cfb35f90cc5f24
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit is contained in:
Brad Fitzpatrick
2022-07-20 13:31:20 -07:00
committed by Brad Fitzpatrick
parent b763a12331
commit d8cb5aae17
4 changed files with 104 additions and 10 deletions
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13
control/controlclient/map.go
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@@ -5,6 +5,7 @@
package controlclient
import (
"fmt"
"log"
"sort"
@@ -238,7 +239,7 @@ func undeltaPeers(mapRes *tailcfg.MapResponse, prev []*tailcfg.Node) {
sortNodes(newFull)
}
if len(mapRes.PeerSeenChange) != 0 || len(mapRes.OnlineChange) != 0 {
if len(mapRes.PeerSeenChange) != 0 || len(mapRes.OnlineChange) != 0 || len(mapRes.PeersChangedPatch) != 0 {
peerByID := make(map[tailcfg.NodeID]*tailcfg.Node, len(newFull))
for _, n := range newFull {
peerByID[n.ID] = n
@@ -259,6 +260,16 @@ func undeltaPeers(mapRes *tailcfg.MapResponse, prev []*tailcfg.Node) {
n.Online = &online
}
}
for _, ec := range mapRes.PeersChangedPatch {
if n, ok := peerByID[ec.NodeID]; ok {
if ec.DERPRegion != 0 {
n.DERP = fmt.Sprintf("%s:%v", tailcfg.DerpMagicIP, ec.DERPRegion)
}
if ec.Endpoints != nil {
n.Endpoints = ec.Endpoints
}
}
}
}
mapRes.Peers = newFull