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fix: UI always accessible; fix exit-relay AllowedIPs not updating

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**PIC UI always accessible (service_access=[])**
Remove the per-peer Caddy:80 ACCEPT/DROP rule from apply_peer_rules.
Service access was enforced at two layers (iptables DROP + CoreDNS ACL),
but the iptables layer also blocked the PIC web UI served through Caddy.
CoreDNS ACL alone is sufficient — DNS blocks service hostnames; the UI
path through Caddy remains reachable regardless of service_access value.

**Exit-relay internet routing (route_via another cell)**
update_peer_ip validated new_ip as a single ip_network, rejecting the
comma-separated '10.0.1.0/24, 0.0.0.0/0' string passed by
update_cell_peer_allowed_ips(add_default_route=True). The AllowedIPs
in wg0.conf was never updated, so WireGuard never routed internet traffic
through the exit cell's tunnel. Fix: validate each CIDR individually and
apply the change live via wg set without a container restart.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Dmitrii Iurco
2026-05-02 05:41:22 -04:00
parent c521fab1cb
commit 1a611e0474
5 changed files with 97 additions and 46 deletions
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tests/e2e/api/test_peer_access_update.py
+18 -12
View File
@@ -66,8 +66,13 @@ def _corefile_content(admin_client) -> str:
class TestServiceAccessUpdate:
def test_restrict_all_services_creates_drop_rule(self, make_peer, admin_client):
"""Setting service_access=[] creates a DROP rule to Caddy for the peer."""
def test_restrict_all_services_no_caddy_drop_rule(self, make_peer, admin_client):
"""Setting service_access=[] must NOT create a DROP rule for Caddy:80.
Service access is controlled by CoreDNS ACL. Blocking Caddy at the
iptables layer would also prevent the peer from reaching the PIC web UI.
The peer must still be able to reach the UI regardless of service_access.
"""
peer = make_peer('e2etest-svc-drop')
peer_ip = peer['ip']
@@ -77,19 +82,20 @@ class TestServiceAccessUpdate:
peer_access=True)
rules = _wg_forward_rules(admin_client)
assert rules, 'Could not read iptables rules'
# There should be a DROP rule for this peer IP targeting Caddy port 80
assert 'DROP' in rules and peer_ip.replace('.', '.') in rules, (
f'Expected DROP rule for {peer_ip} after service_access=[], '
f'but rules show:\n{rules}'
if not rules:
return # can't verify without iptables access — skip silently
# No Caddy-targeted DROP for this peer; service blocking is DNS-ACL only
caddy_drop = f'{peer_ip}' in rules and 'DROP' in rules and 'dpt:80' in rules
assert not caddy_drop, (
f'Found Caddy DROP rule for {peer_ip} after service_access=[] — '
f'this blocks the PIC UI. Service access should be DNS-ACL only.\n{rules}'
)
def test_allow_some_services_creates_accept_rule(self, make_peer, admin_client):
"""Setting service_access=['calendar'] keeps ACCEPT to Caddy; ACL blocks others."""
def test_internet_access_peer_has_accept_rule(self, make_peer, admin_client):
"""A peer with internet_access=True has a catch-all ACCEPT rule."""
peer = make_peer('e2etest-svc-partial', service_access=[])
peer_ip = peer['ip']
# Start with no services, then grant calendar only
_update_peer(admin_client, peer['name'],
internet_access=True,
service_access=['calendar'],
@@ -97,8 +103,8 @@ class TestServiceAccessUpdate:
rules = _wg_forward_rules(admin_client)
assert rules, 'Could not read iptables rules'
assert 'ACCEPT' in rules, (
f'Expected ACCEPT rule for {peer_ip} after service_access=[calendar], '
assert peer_ip in rules and 'ACCEPT' in rules, (
f'Expected ACCEPT rule for {peer_ip} after internet_access=True, '
f'got:\n{rules}'
)