Each is independently reproducible; fixed together since one review pass
found all of them.
- manager.go: the shared "ip rule add fwmark" policy route had no
existence check, so it duplicated in "ip rule show" on every interface
bounce (which hostRulesFingerprint forces on any client add/remove/
re-IP). Now checked via "ip rule list | grep -q ..." first. (Finding 2)
- params.go: ExternalInterface, IPv6ExternalInterface, and subnetIp/
subnetCidr are interpolated unescaped into a shell-executed PostUp/
PostDown line, but only obfuscation and the IPv6 subnet were validated
before save. Added ValidateInterfaceName (a strict charset+length
pattern) and ValidateSubnetIPv4 (netip.ParsePrefix), wired into
normalizeAmneziaWGSettings. (Finding 3)
- amneziawg_job.go: IsAwgInstalled() existed but nothing ever called it,
so a host without awg/awg-quick (the Docker image, RHEL, Arch, a failed
install.sh PPA step) logged a reconcile failure every 10s forever. Now
checked once an inbound actually needs it, warning once instead of
spamming. (Finding 4)
- client_inbound_apply.go: the WireGuard/AmneziaWG credential
carry-forward (added so a metadata-only client edit doesn't rotate
keys) never covered ForwardedPorts, so a partial edit -- an API call or
Telegram-bot toggle that omits the field -- silently wiped a client's
port-forwarding spec. Carried forward and written back the same way the
key fields already are. (Finding 5)
- manager.go: hostRulesFingerprint keyed each peer on its IPv4 address
only, and structuralFingerprint omitted IPv6Enabled/IPv6ExternalInterface
entirely, so an IPv6-only change could pick the syncconf reload path
(which never re-runs PostUp, leaving a stale NDP-proxy entry) or be a
complete no-op. Both fingerprints now cover the IPv6 fields. (Finding 6)
- port_conflict.go: the AmneziaWG egress bridge (injectAmneziawgEgress)
binds 127.0.0.1:63100+id with no collision check anywhere, since it
isn't a database row the ordinary port-conflict query can see -- same
blind spot the reserved Xray API port already has its own check for.
Added the equivalent check for the AmneziaWG bridge port. (Finding 7)
- install.sh: install_amneziawg ran unconditionally for every install/
update, building a DKMS kernel module and enabling host-wide IPv4/IPv6
forwarding whether or not the feature is ever used. Gated behind a new
should_install_amneziawg (XUI_INSTALL_AMNEZIAWG=true/false, or an
interactive y/N prompt defaulting to no). Also replaced the deprecated
apt-key adv with a dedicated keyring + signed-by= on the Debian branch,
and guarded its sources.list appends against duplication on a retried
install. (Finding 8)
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
c41f97cf86