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tailcfg: add JSON unmarshal helper for view of node/peer capabilities

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Many places that need to work with node/peer capabilities end up with a
something-View and need to either reimplement the helper code or make an
expensive copy. We have the machinery to easily handle this now.

Updates #cleanup

Change-Id: Ic3f55be329f0fc6c178de26b34359d0e8c6ca5fc
Signed-off-by: Adrian Dewhurst <adrian@tailscale.com>
This commit is contained in:
Adrian Dewhurst
2025-02-03 14:08:26 -05:00
committed by Adrian Dewhurst
parent 95e2353294
commit 600f25dac9
4 changed files with 24 additions and 14 deletions
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5
ipn/ipnlocal/local.go
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@@ -4463,10 +4463,7 @@ func (b *LocalBackend) reconfigAppConnectorLocked(nm *netmap.NetworkMap, prefs i
return
}
// TODO(raggi): rework the view infrastructure so the large deep clone is no
// longer required
sn := nm.SelfNode.AsStruct()
attrs, err := tailcfg.UnmarshalNodeCapJSON[appctype.AppConnectorAttr](sn.CapMap, appConnectorCapName)
attrs, err := tailcfg.UnmarshalNodeCapViewJSON[appctype.AppConnectorAttr](nm.SelfNode.CapMap(), appConnectorCapName)
if err != nil {
b.logf("[unexpected] error parsing app connector mapcap: %v", err)
return