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all: migrate code off Notify.NetMap to Notify.SelfChange

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Move tailscaled's in-tree reactive users from of IPN bus Notify.NetMap
updates to the narrower Notify.SelfChange signal introduced earlier in
this series. Consumers that need additional state (peers, DNS config,
etc.) fetch it on demand via the LocalAPI.

It is a step toward the larger goal of not fanning Notify.NetMap out
to every bus watcher on Linux/non-GUI hosts.

A future change stops sending Notify.NetMap entirely on Linux and
non-GUI platforms. (eventually once macOS/iOS/Windows migrate to the
upcoming new Notify APIs, we'll remove ipn.Notify.NetMap entirely)

Updates #12542

Change-Id: I51ea9d86bdca1909d6ac0e7d5bd3934a3a4e8516
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit is contained in:
Brad Fitzpatrick
2026-05-01 03:47:18 +00:00
committed by Brad Fitzpatrick
parent ff9c3f0e00
commit 4c3ed5ab32
14 changed files with 498 additions and 410 deletions
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cmd/tsconnect/wasm/wasm_js.go
+42 -36
View File
@@ -258,44 +258,50 @@ func (i *jsIPN) run(jsCallbacks js.Value) {
if n.State != nil {
notifyState(*n.State)
}
if nm := n.NetMap; nm != nil {
jsNetMap := jsNetMap{
Self: jsNetMapSelfNode{
jsNetMapNode: jsNetMapNode{
Name: nm.SelfName(),
Addresses: mapSliceView(nm.GetAddresses(), func(a netip.Prefix) string { return a.Addr().String() }),
NodeKey: nm.NodeKey.String(),
MachineKey: nm.MachineKey.String(),
},
MachineStatus: jsMachineStatus[nm.GetMachineStatus()],
},
Peers: mapSlice(nm.Peers, func(p tailcfg.NodeView) jsNetMapPeerNode {
name := p.Name()
if name == "" {
// In practice this should only happen for Hello.
name = p.Hostinfo().Hostname()
}
addrs := make([]string, p.Addresses().Len())
for i, ap := range p.Addresses().All() {
addrs[i] = ap.Addr().String()
}
return jsNetMapPeerNode{
if n.SelfChange != nil {
// Self changed: rebuild the JS-side NetMap snapshot. Peers
// don't ride on the bus anymore, so fetch them on demand
// from LocalBackend.
nm := i.lb.NetMapWithPeers()
if nm != nil {
jsNetMap := jsNetMap{
Self: jsNetMapSelfNode{
jsNetMapNode: jsNetMapNode{
Name: name,
Addresses: addrs,
MachineKey: p.Machine().String(),
NodeKey: p.Key().String(),
Name: nm.SelfName(),
Addresses: mapSliceView(nm.GetAddresses(), func(a netip.Prefix) string { return a.Addr().String() }),
NodeKey: nm.NodeKey.String(),
MachineKey: nm.MachineKey.String(),
},
Online: p.Online().Clone(),
TailscaleSSHEnabled: p.Hostinfo().TailscaleSSHEnabled(),
}
}),
LockedOut: nm.TKAEnabled && nm.SelfNode.KeySignature().Len() == 0,
}
if jsonNetMap, err := json.Marshal(jsNetMap); err == nil {
jsCallbacks.Call("notifyNetMap", string(jsonNetMap))
} else {
log.Printf("Could not generate JSON netmap: %v", err)
MachineStatus: jsMachineStatus[nm.GetMachineStatus()],
},
Peers: mapSlice(nm.Peers, func(p tailcfg.NodeView) jsNetMapPeerNode {
name := p.Name()
if name == "" {
// In practice this should only happen for Hello.
name = p.Hostinfo().Hostname()
}
addrs := make([]string, p.Addresses().Len())
for i, ap := range p.Addresses().All() {
addrs[i] = ap.Addr().String()
}
return jsNetMapPeerNode{
jsNetMapNode: jsNetMapNode{
Name: name,
Addresses: addrs,
MachineKey: p.Machine().String(),
NodeKey: p.Key().String(),
},
Online: p.Online().Clone(),
TailscaleSSHEnabled: p.Hostinfo().TailscaleSSHEnabled(),
}
}),
LockedOut: nm.TKAEnabled && nm.SelfNode.KeySignature().Len() == 0,
}
if jsonNetMap, err := json.Marshal(jsNetMap); err == nil {
jsCallbacks.Call("notifyNetMap", string(jsonNetMap))
} else {
log.Printf("Could not generate JSON netmap: %v", err)
}
}
}
if n.BrowseToURL != nil {