Reworked after a design consultation with Codex, which pushed back on my first
proposal in three useful ways.
Ownership and rights:
- vpn.manage split into vpn.view.all and vpn.manage.all. Seeing an access is
not managing it, and neither is holding its private key.
- Record-level rules live in VpnPeerPolicy, not in permissions: an access
belongs to a person, and ownership is what grants sight of it. Every operator
reaches the page, but sees only their own unless they may see all.
- Issuing an access is not self-service — it reaches the management network, so
it needs vpn.manage.all even for oneself.
- New Developer role: sees everything, manages nothing. Writing code does not
imply authority over other people's access.
- kind (staff|host|system) replaces a null user_id that had to mean two
different things at once.
Config storage, opt-in per access:
- Downloading is owner-only — explicitly NOT for view.all or manage.all. An
admin who needs access revokes this one and issues their own, which keeps the
record of who holds what honest.
- The password is asked on EVERY retrieval, rate-limited. Laravel's
password.confirm keeps a 15-minute session stamp, which would authorise
unlimited later downloads from an unattended browser.
- Stored under VPN_CONFIG_KEY, not APP_KEY: a leaked application key must not
also hand over the management network. Purged on revocation and when a staff
member is revoked — console taken away, tunnel left open was the worst case.
- The plaintext never enters a Livewire snapshot (the page polls every five
seconds); the component carries an opaque handle instead.
Also: copy button works without HTTPS again (navigator.clipboard only exists in
a secure context, so over http it silently did nothing), plus config download
as a file and a QR code for the mobile apps.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The FK only nulled host_id, so the adopted peer stayed enabled-but-absent: shown
as "wird angewendet" forever, and re-enabling it would have put the deleted
host's key and address back on the hub. PurgeHost now tombstones that row, which
hands it to the same revocation machinery as everything else.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
- A host's wg_pubkey may not be in vpn_peers yet, so the duplicate check passed
and an operator could create an access with it. ApplyVpnPeer would then run
wg set with a freshly allocated address, rewriting that host's allowed-ip and
cutting CluPilot's management tunnel to a live machine. Creation now rejects
keys already held by a host, checked under the allocation lock.
- A sync landing between addPeer() and the step storing wg_pubkey adopted the
peer as "unknown", and a later sync filled in host_id but left the name, so
the page showed that host as unknown forever. The name is now filled in when
the link becomes known — only for sync-adopted rows, so an access an operator
named keeps its name.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
- ConfigureWireguard and RemoveWireguardPeer mutate the hub too, and were not
taking the lock, so a sync could still read the interface around them and
write stale state. Both now hold wireguard:hub, which is what makes the
read/mutation guarantee actually hold.
- The duplicate-key check ran before the allocation lock, so two concurrent
creations with the same key both passed it and the loser hit the unique index
as an unhandled 500. The check moved inside the lock, with the index kept as
a caught backstop for any writer that does not take it — reproduced in a test
by inserting a colliding row from within the allocation call.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
A sync could read the hub snapshot just before ApplyVpnPeer removed a peer and
purged its tombstone, then adopt what it had seen as a fresh enabled access —
restoring a revoked one. Both jobs now hold Cache::lock('wireguard:hub') around
read-decide-mutate, so a reconciliation can never straddle a removal. Retry
removals are dispatched after the lock is released, because the sync queue
driver runs them inline and they take the same lock.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
If an add job was retried after the access had been revoked and its tombstone
purged, it found no row and trusted its own enabled=true payload — re-adding a
key that no longer had a row anyone could revoke it with. A missing row can only
mean the access is gone, so the captured payload may now remove but never
enable.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Two more from Codex:
- Addresses come from one subnet but live in two tables (hosts.wg_ip and
vpn_peers.allowed_ip), so a concurrent host onboarding and console creation
could each see the same address as free and both insert — neither unique
index sees the other. Creation now waits on Cache::lock('wireguard:allocate'),
the same lock ConfigureWireguard already holds while reserving a host address.
- mount() runs once, so revoking vpn.manage left an open tab polling every five
seconds and still receiving fresh peer state. Authorization now also runs on
hydration, which is what the poll goes through.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Two lifecycle holes Codex found in the new VPN management:
1. Delete removed the row before the hub knew. If the removal job was delayed
or failed, SyncVpnPeers saw a peer it did not recognise and adopted it back
as a live access — silently restoring what an operator had just revoked, and
with no row left to revoke it again. Deletion is now a soft-delete
tombstone: the row survives until the hub confirms the peer is gone, the
sync retries the removal instead of adopting, and the tombstone is purged
only once the peer is really absent. It also keeps the key and the tunnel
address reserved meanwhile, so neither is handed out twice.
2. ApplyVpnPeer applied the state captured at dispatch. A retried block job
could therefore undo a later unblock, and nothing would repair it — the sync
only observes state, it never re-applies intent. The job now resolves the
current desired state from the row and treats its payload as a fallback for
the case where the row is already gone.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The console can now create, block and remove VPN accesses, and shows who is
actually connected — traffic counters, source endpoint and last handshake.
Design notes:
- The web container has no wg0, so the page never talks to WireGuard. Live
state is copied in by SyncVpnPeers on the provisioning queue (the only worker
whose container owns the interface); the page polls the database and merely
nudges that job, throttled so many open tabs cannot flood the queue.
- enabled (operator intent) and present (observed on the hub) are stored
separately, so a sync can never quietly undo a block and drift stays visible
as "wird angewendet".
- The sync adopts peers the host pipeline registered, naming them after their
host — otherwise "who is on the VPN" would have blind spots.
- Keypairs are generated in PHP via libsodium rather than shelling out to
wg genkey (no interface in this container, and it keeps generation testable).
The private key is shown once and never stored.
- allocateIp() now also considers vpn_peers, which would otherwise be handed a
tunnel address a host already holds.
- vpn.manage is a new capability held by Owner/Admin only, and it hides the nav
entry too — a VPN access reaches the management network.
Verified end to end against the real hub, not just mocks: created an access in
the browser, connected with the generated config, watched the console flip to
"Verbunden" with real counters, then blocked it and confirmed the peer was
gone from wg0 and the client could no longer handshake.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
nexxo