refactor(qbittorrent): simplify vpn endpoint route to single-IP helpers

Agent-Logs-Url: https://github.com/alexbelgium/hassio-addons/sessions/c4801bc4-9748-4959-986c-8459fd6d52cd

Co-authored-by: alexbelgium <44178713+alexbelgium@users.noreply.github.com>

qbittorrent/CHANGELOG.md

@@ -1,3 +1,9 @@
+## 5.2.0-18 (13-05-2026)
+- Simplify VPN endpoint route pinning to minimal helpers (single endpoint, no tracking list).
+
+## 5.2.0-17 (13-05-2026)
+- Fix VPN endpoint routing by pinning OpenVPN/WireGuard server IPs to the pre-VPN main route, preventing recursive tunnel routing drops.
+
 ## 5.2.0-16 (13-05-2026)
 - Minor bugs fixed
 

qbittorrent/config.yaml

@@ -143,4 +143,4 @@ schema:
 slug: qbittorrent
 udev: true
 url: https://github.com/alexbelgium/hassio-addons
-version: "5.2.0-16"
+version: "5.2.0-18"

qbittorrent/rootfs/usr/local/sbin/vpn

@@ -149,6 +149,28 @@ _resolve_hostname() {
     echo "${ips[@]}"
 }
 
+_endpoint_route_add() {
+    local ip="$1"
+    local rt via dev
+    rt="$(ip route get "${ip}" 2>/dev/null | head -n1)"
+    via="$(awk '{for(i=1;i<=NF;i++) if($i=="via"){print $(i+1);exit}}' <<< "${rt}")"
+    dev="$(awk '{for(i=1;i<=NF;i++) if($i=="dev"){print $(i+1);exit}}' <<< "${rt}")"
+    [ -z "${dev}" ] && { bashio::log.error "No route to VPN endpoint ${ip}."; return 1; }
+    if [ -n "${via}" ]; then
+        ip route replace "${ip}" via "${via}" dev "${dev}" || return 1
+    else
+        ip route replace "${ip}" dev "${dev}" || return 1
+    fi
+    bashio::log.info "Pinned VPN endpoint ${ip} to pre-VPN route (dev ${dev})."
+}
+
+_endpoint_route_del() {
+    local ip
+    ip="$(cat "${config["EndpointIPFile"]}" 2>/dev/null)"
+    [ -n "${ip}" ] && ip route del "${ip}" 2>/dev/null || true
+    rm -f "${config["EndpointIPFile"]}" || true
+}
+
 _routing_add() {
     bashio::log.info "Adding routing rules for VPN interface ${config["Interface"]}..."
 
@@ -344,6 +366,8 @@ _wireguard_up() {
     fi
 
     _cmd "ip link set ${config["Interface"]} up" || return 1
+    _endpoint_route_add "${config["EndpointIP"]}" || return 1
+    echo "${config["EndpointIP"]}" > "${config["EndpointIPFile"]}"
 
     # Add routing rules for VPN interface and DNS servers
     _routing_add || return 1
@@ -358,6 +382,7 @@ _wireguard_up() {
 }
 
 _wireguard_down() {
+    _endpoint_route_del || true
     # Update resolv.conf to remove VPN DNS servers
     _resolvconf "reset" || true
     # Remove routing rules for VPN interface and DNS servers
@@ -399,6 +424,7 @@ wireguard() {
     config["Interface"]="${interface}"
     config["ConfigFile"]="${config_file}"
     config["Table"]="${config["Table"]:-1000}"
+    config["EndpointIPFile"]="${WIREGUARD_STATE_DIR}/endpoint-ip"
     config["ListenPort"]="${config["ListenPort"]:-51820}"
     config["EndpointHost"]="${config["Endpoint"]%:*}"
     config["EndpointPort"]="${config["Endpoint"]##*:}"
@@ -485,6 +511,8 @@ _openvpn_check() {
 }
 
 _openvpn_up() {
+    local endpoint_ip result=0
+
     bashio::log.warning "This script force OpenvPN to ignore any routes and DNS settings pushed by the server."
     bashio::log.warning "Default route will be inserted into custom routing table: ${config["Table"]}"
     bashio::log.warning "This routing table will be used for traffic from the VPN interface and to the configured DNS servers."
@@ -498,6 +526,15 @@ _openvpn_up() {
     echo "${config["MySelf"]} openvpn postdown" >> ${config["PostDownScript"]}
     chmod 755 ${config["PostDownScript"]}
 
+    endpoint_ip="$(awk '/^[[:space:]]*remote[[:space:]]/ {print $2; exit}' "${config["ConfigFile"]}")"
+    if [ -n "${endpoint_ip}" ]; then
+        _check_host "${endpoint_ip}" || result=$?
+        [ "${result}" -eq 3 ] && endpoint_ip="$(_resolve_hostname "${endpoint_ip}" | awk '{print $1}')"
+        if [ -n "${endpoint_ip}" ]; then
+            _endpoint_route_add "${endpoint_ip}" && echo "${endpoint_ip}" > "${config["EndpointIPFile"]}"
+        fi
+    fi
+
     # Define logging
     declare -A verbosity=(
         ["fatal"]=1
@@ -533,6 +570,7 @@ _openvpn_up() {
 _openvpn_down() {
     # Terminate OpenVPN process
     pkill -f "openvpn --config ${config["ConfigFile"]}" || true
+    _endpoint_route_del || true
     # Safety-net cleanup in case the --down callback was never invoked
     _routing_del || true
 }
@@ -557,6 +595,7 @@ _openpvn_postdown() {
     if bashio::config.true 'vpn_upnp_enabled'; then
         _firewall_del || true
     fi
+    _endpoint_route_del || true
 }
 
 openvpn() {
@@ -586,6 +625,7 @@ openvpn() {
     config["Interface"]="${interface}"
     config["ConfigFile"]="${config_file}"
     config["Table"]="${config["Table"]:-1000}"
+    config["EndpointIPFile"]="${OPENVPN_STATE_DIR}/endpoint-ip"
     config["PostUpScript"]="${OPENVPN_STATE_DIR}/up.sh"
     config["PostDownScript"]="${OPENVPN_STATE_DIR}/down.sh"