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The mesh's interface takes over the found tunnel's MTU

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Carries MTU from the reported tunnel (mesh-host#28) through inventory,
the overlay graph's TakeOver, into the generated config's [Interface].
A tuned path keeps its MTU across the takeover instead of regressing to
1420 and hanging transfers no ping would reveal. Two emit tests; a
tunnel with no MTU writes no line.
This commit is contained in:
jschoubben
2026-09-26 22:40:42 +02:00
parent 50878a9d98
commit 7fc5fd02fd
7 changed files with 38 additions and 3 deletions
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internal/link/enrolment.go
+2 -2
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@@ -140,7 +140,7 @@ func (e Enrolment) Enrol(ctx context.Context, request EnrolRequest) (reply Enrol
}
if err := e.Inventory.RecordTunnel(ctx, node.ID, inventory.Tunnel{
Interface: request.Tunnel.Interface, Unit: request.Tunnel.Unit,
Config: request.Tunnel.Config, Port: request.Tunnel.Port,
Config: request.Tunnel.Config, Port: request.Tunnel.Port, MTU: request.Tunnel.MTU,
Address: request.Tunnel.Address, Range: request.Tunnel.Range,
PublicKey: request.Tunnel.PublicKey, Peers: peers,
}); err != nil {
@@ -199,7 +199,7 @@ func (e Enrolment) rekey(ctx context.Context, node inventory.Node, r Rekey) erro
peers = append(peers, inventory.TunnelPeer{PublicKey: p.PublicKey, Address: p.Address})
}
err := e.Inventory.Rekey(ctx, node.ID, r.Previous, r.OverlayKey, inventory.Tunnel{
Interface: r.Tunnel.Interface, Unit: r.Tunnel.Unit, Config: r.Tunnel.Config, Port: r.Tunnel.Port,
Interface: r.Tunnel.Interface, Unit: r.Tunnel.Unit, Config: r.Tunnel.Config, Port: r.Tunnel.Port, MTU: r.Tunnel.MTU,
Address: r.Tunnel.Address, Range: r.Tunnel.Range, PublicKey: r.Tunnel.PublicKey, Peers: peers,
})
if err != nil {