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tailcfg: add NodeCapMap

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Like PeerCapMap, add a field to `tailcfg.Node` which provides
a map of Capability to raw JSON messages which are deferred to be
parsed later by the application code which cares about the specific
capabilities. This effectively allows us to prototype new behavior
without having to commit to a schema in tailcfg, and it also opens up
the possibilities to develop custom behavior in tsnet applications w/o
having to plumb through application specific data in the MapResponse.

Updates #4217

Signed-off-by: Maisem Ali <maisem@tailscale.com>
This commit is contained in:
Maisem Ali
2023-09-18 08:52:22 -07:00
committed by Maisem Ali
parent 4da0689c2c
commit 19a9d9037f
12 changed files with 179 additions and 46 deletions
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7
types/netmap/netmap.go
View File

@@ -185,8 +185,13 @@ func (nm *NetworkMap) SelfCapabilities() views.Slice[tailcfg.NodeCapability] {
if nm == nil || !nm.SelfNode.Valid() {
return zero
}
out := nm.SelfNode.Capabilities().AsSlice()
nm.SelfNode.CapMap().Range(func(k tailcfg.NodeCapability, _ views.Slice[tailcfg.RawMessage]) (cont bool) {
out = append(out, k)
return true
})
return nm.SelfNode.Capabilities()
return views.SliceOf(out)
}
func (nm *NetworkMap) String() string {