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ipn/ipnlocal, types: plumb tailnet display name cap through to network profile (#17045)

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Updates tailscale/corp#30456

Signed-off-by: Nick O'Neill <nick@tailscale.com>
This commit is contained in:
Nick O'Neill 2025-09-09 09:03:01 -07:00 committed by GitHub
parent f1ded84454
commit 77250a301a
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GPG Key ID: B5690EEEBB952194
4 changed files with 26 additions and 0 deletions
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8
ipn/ipnlocal/local.go
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@ -1650,12 +1650,18 @@ func (b *LocalBackend) SetControlClientStatus(c controlclient.Client, st control
prefsChanged = true prefsChanged = true
} }
// If the tailnet's display name has changed, update prefs.
if st.NetMap != nil && st.NetMap.TailnetDisplayName() != b.pm.CurrentProfile().NetworkProfile().DisplayName {
prefsChanged = true
}
// Perform all mutations of prefs based on the netmap here. // Perform all mutations of prefs based on the netmap here.
if prefsChanged { if prefsChanged {
// Prefs will be written out if stale; this is not safe unless locked or cloned. // Prefs will be written out if stale; this is not safe unless locked or cloned.
if err := b.pm.SetPrefs(prefs.View(), ipn.NetworkProfile{ if err := b.pm.SetPrefs(prefs.View(), ipn.NetworkProfile{
MagicDNSName: curNetMap.MagicDNSSuffix(), MagicDNSName: curNetMap.MagicDNSSuffix(),
DomainName: curNetMap.DomainName(), DomainName: curNetMap.DomainName(),
DisplayName: curNetMap.TailnetDisplayName(),
}); err != nil { }); err != nil {
b.logf("Failed to save new controlclient state: %v", err) b.logf("Failed to save new controlclient state: %v", err)
} }
@ -1716,6 +1722,7 @@ func (b *LocalBackend) SetControlClientStatus(c controlclient.Client, st control
if err := b.pm.SetPrefs(p, ipn.NetworkProfile{ if err := b.pm.SetPrefs(p, ipn.NetworkProfile{
MagicDNSName: st.NetMap.MagicDNSSuffix(), MagicDNSName: st.NetMap.MagicDNSSuffix(),
DomainName: st.NetMap.DomainName(), DomainName: st.NetMap.DomainName(),
DisplayName: st.NetMap.TailnetDisplayName(),
}); err != nil { }); err != nil {
b.logf("Failed to save new controlclient state: %v", err) b.logf("Failed to save new controlclient state: %v", err)
} }
@ -6185,6 +6192,7 @@ func (b *LocalBackend) resolveExitNode() (changed bool) {
if err := b.pm.SetPrefs(prefs.View(), ipn.NetworkProfile{ if err := b.pm.SetPrefs(prefs.View(), ipn.NetworkProfile{
MagicDNSName: nm.MagicDNSSuffix(), MagicDNSName: nm.MagicDNSSuffix(),
DomainName: nm.DomainName(), DomainName: nm.DomainName(),
DisplayName: nm.TailnetDisplayName(),
}); err != nil { }); err != nil {
b.logf("failed to save exit node changes: %v", err) b.logf("failed to save exit node changes: %v", err)
} }

1
ipn/ipnlocal/node_backend.go
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@ -168,6 +168,7 @@ func (nb *nodeBackend) NetworkProfile() ipn.NetworkProfile {
// These are ok to call with nil netMap. // These are ok to call with nil netMap.
MagicDNSName: nb.netMap.MagicDNSSuffix(), MagicDNSName: nb.netMap.MagicDNSSuffix(),
DomainName: nb.netMap.DomainName(), DomainName: nb.netMap.DomainName(),
DisplayName: nb.netMap.TailnetDisplayName(),
} }
} }

1
ipn/prefs.go
View File

@ -988,6 +988,7 @@ type WindowsUserID string
type NetworkProfile struct { type NetworkProfile struct {
MagicDNSName string MagicDNSName string
DomainName string DomainName string
DisplayName string
} }
// RequiresBackfill returns whether this object does not have all the data // RequiresBackfill returns whether this object does not have all the data

16
types/netmap/netmap.go
View File

@ -252,6 +252,22 @@ func (nm *NetworkMap) DomainName() string {
return nm.Domain return nm.Domain
} }
// TailnetDisplayName returns the admin-editable name contained in
// NodeAttrTailnetDisplayName. If the capability is not present it
// returns an empty string.
func (nm *NetworkMap) TailnetDisplayName() string {
if nm == nil || !nm.SelfNode.Valid() {
return ""
}
tailnetDisplayNames, err := tailcfg.UnmarshalNodeCapViewJSON[string](nm.SelfNode.CapMap(), tailcfg.NodeAttrTailnetDisplayName)
if err != nil || len(tailnetDisplayNames) == 0 {
return ""
}
return tailnetDisplayNames[0]
}
// HasSelfCapability reports whether nm.SelfNode contains capability c. // HasSelfCapability reports whether nm.SelfNode contains capability c.
// //
// It exists to satisify an unused (as of 2025-01-04) interface in the logknob package. // It exists to satisify an unused (as of 2025-01-04) interface in the logknob package.