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ipn/ipnlocal: fix LocalBackend.WhoIs for self (#9472)

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9538e9f97035ce7a382d2b395db3368bd0326113 broke LocalBackend.WhoIs
where you can no longer lookup yourself in WhoIs.
This occurs because the LocalBackend.peers map only contains peers.
If we fail to lookup a peer, double-check whether it is ourself.

Fixes #9470

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
Co-authored-by: Rhea Ghosh <rhea@tailscale.com>
This commit is contained in:
Joe Tsai 2023-09-20 13:46:19 -07:00 committed by GitHub
parent c5b2a365de
commit ae89482f25
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1 changed files with 8 additions and 1 deletions
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9
ipn/ipnlocal/local.go
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@ -868,9 +868,16 @@ func (b *LocalBackend) WhoIs(ipp netip.AddrPort) (n tailcfg.NodeView, u tailcfg.
return zero, u, false
}
}
if b.netMap == nil {
return zero, u, false
}
n, ok = b.peers[nid]
if !ok {
return zero, u, false
// Check if this the self-node, which would not appear in peers.
if !b.netMap.SelfNode.Valid() || nid != b.netMap.SelfNode.ID() {
return zero, u, false
}
n = b.netMap.SelfNode
}
u, ok = b.netMap.UserProfiles[n.User()]
if !ok {