Three related fixes for split-tunnel peers that need to reach connected cells:
1. apply_peer_rules/apply_all_peer_rules now accept wg_subnet (actual local VPN
subnet) and cell_subnets (connected cells' vpn_subnets) parameters instead of
hardcoding 10.0.0.0/24. All callers (startup, add_peer, update_peer,
apply-enforcement endpoint) pass the real values.
2. Explicit ACCEPT rules are inserted in FORWARD for each connected cell's
subnet so split-tunnel peers (internet_access=False) can still reach
connected cells via the wg0→wg0 path.
3. apply_ip_range in network_manager now loads cell_links.json and passes it
to generate_corefile(), fixing a race where the bootstrap DNS thread could
overwrite the Corefile and wipe cross-cell DNS forwarding zones on startup.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Three fixes:
1. Extend the docker-exec safety guard in wireguard_manager to also check
for 'wg_confs' in the config path. When running unit tests on the host
the API uses /app/config/wireguard/wg0.conf (no wg_confs subdir), so the
old '/tmp/' | 'pytest' check didn't fire — _syncconf and friends were
executing live 'docker exec cell-wireguard wg set' calls against the
running container, removing real VPN peers that didn't appear in the
test config. The wg_confs subdir only exists inside the container mount,
so its presence reliably gates live calls.
2. Fix get_split_tunnel_ips() wrong path: self.data_dir + 'api/cell_links.json'
→ self.data_dir + 'cell_links.json'. The extra 'api/' segment produced
/app/data/api/cell_links.json inside the container instead of the real
/app/data/cell_links.json, so connected cells were silently excluded from
split-tunnel CIDRs.
3. update_peer_ip_registry and ip_update now also call
wireguard_manager.update_peer_ip so wg0.conf AllowedIPs stay in sync when
a peer's VPN IP changes at runtime (previously only peers.json was updated).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Adds the ability to route a specific peer's internet traffic through a
connected cell acting as an exit relay.
Cell A side:
- PUT /api/peers/<peer>/route-via {"via_cell": "cellB"} sets route_via
- Updates WG AllowedIPs to include 0.0.0.0/0 for the exit cell peer
- Adds ip rule + ip route in policy table inside cell-wireguard so the
specific peer's traffic egresses via cellB's WG IP
- Sets exit_relay_active on the cell link and pushes use_as_exit_relay=True
to cellB via peer-sync
Cell B side:
- Receives use_as_exit_relay in the peer-sync payload
- Calls apply_cell_rules(..., exit_relay=True) to add FORWARD -o eth0 ACCEPT
- Stores remote_exit_relay_active flag for startup recovery
Startup recovery:
- apply_all_cell_rules passes exit_relay=remote_exit_relay_active (cellB)
- _apply_startup_enforcement reapplies ip rule for each peer with route_via (cellA)
since policy routing rules don't survive container restart
peer_registry gets route_via field with lazy migration.
22 new tests across test_cell_link_manager, test_peer_registry, test_peer_route_via.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
roof