feat: tweaking torrent vm

modules/nixos/guests/torrent/default.nix

@@ -125,9 +125,109 @@ in
           "d ${serviceCfg.varPaths.path0}/downloads 755 ${serviceCfg.name} ${serviceCfg.name} -"
         ];
 
-        services.qbittorrent = {
+        services = {
-          after = [ "wg-quick-wg0.service" ];
+          qbittorrent = {
-          requires = [ "wg-quick-wg0.service" ];
+            after = [ "wg-quick-wg0.service" ];
+            requires = [ "wg-quick-wg0.service" ];
+          };
+
+          natpmp-portforward = {
+            description = "NAT-PMP Port Forwarding for VPN";
+            after = [
+              "wg-quick-wg0.service"
+              "qbittorrent.service"
+            ];
+            requires = [
+              "wg-quick-wg0.service"
+              "qbittorrent.service"
+            ];
+            wantedBy = [ "multi-user.target" ];
+            serviceConfig = {
+              Type = "simple";
+              Restart = "always";
+              RestartSec = "10s";
+            };
+            script = ''
+              PASSWORD=$(cat /run/secrets/qbittorrent-pass)
+              # Wait for qBittorrent to be ready
+              echo "Waiting for qBittorrent to start..."
+              sleep 10
+
+              # Enable IP forwarding
+              echo 1 > /proc/sys/net/ipv4/ip_forward
+
+              while true; do
+                echo "Requesting port forwarding from VPN..."
+                
+                # Get the forwarded port for UDP
+                UDP_OUTPUT=$(${pkgs.libnatpmp}/bin/natpmpc -a 1 0 udp 60 -g 10.2.0.1 2>&1)
+                UDP_PORT=$(echo "$UDP_OUTPUT" | ${pkgs.gnugrep}/bin/grep "Mapped public port" | ${pkgs.gawk}/bin/awk '{print $4}' | head -1)
+                
+                # Get the forwarded port for TCP
+                TCP_OUTPUT=$(${pkgs.libnatpmp}/bin/natpmpc -a 1 0 tcp 60 -g 10.2.0.1 2>&1)
+                TCP_PORT=$(echo "$TCP_OUTPUT" | ${pkgs.gnugrep}/bin/grep "Mapped public port" | ${pkgs.gawk}/bin/awk '{print $4}' | head -1)
+                
+                if [ -n "$UDP_PORT" ] && [ -n "$TCP_PORT" ]; then
+                  echo "Port forwarding successful: UDP=$UDP_PORT, TCP=$TCP_PORT"
+                  
+                  # Clear old PREROUTING rules to avoid duplicates
+                  ${pkgs.iptables}/bin/iptables -t nat -D PREROUTING -i enp0s5 -p tcp -j DNAT --to-destination 10.2.0.2 2>/dev/null || true
+                  ${pkgs.iptables}/bin/iptables -t nat -D PREROUTING -i enp0s5 -p udp -j DNAT --to-destination 10.2.0.2 2>/dev/null || true
+                  
+                  # Forward traffic from enp0s5 (VM's main interface) to wg0 (WireGuard interface)
+                  ${pkgs.iptables}/bin/iptables -t nat -A PREROUTING -i enp0s5 -p tcp --dport "$TCP_PORT" -j DNAT --to-destination 10.2.0.2:$TCP_PORT
+                  ${pkgs.iptables}/bin/iptables -t nat -A PREROUTING -i enp0s5 -p udp --dport "$UDP_PORT" -j DNAT --to-destination 10.2.0.2:$UDP_PORT
+                  
+                  # Enable masquerading for responses
+                  ${pkgs.iptables}/bin/iptables -t nat -C POSTROUTING -o wg0 -j MASQUERADE 2>/dev/null || \
+                    ${pkgs.iptables}/bin/iptables -t nat -A POSTROUTING -o wg0 -j MASQUERADE
+                  
+                  # Allow forwarding between interfaces
+                  ${pkgs.iptables}/bin/iptables -C FORWARD -i enp0s5 -o wg0 -j ACCEPT 2>/dev/null || \
+                    ${pkgs.iptables}/bin/iptables -A FORWARD -i enp0s5 -o wg0 -j ACCEPT
+                  ${pkgs.iptables}/bin/iptables -C FORWARD -i wg0 -o enp0s5 -m state --state RELATED,ESTABLISHED -j ACCEPT 2>/dev/null || \
+                    ${pkgs.iptables}/bin/iptables -A FORWARD -i wg0 -o enp0s5 -m state --state RELATED,ESTABLISHED -j ACCEPT
+                  
+                  echo "Firewall forwarding rules updated for ports: UDP=$UDP_PORT, TCP=$TCP_PORT"
+                  
+                  # Open the ports in the firewall dynamically (INPUT chain)
+                  ${pkgs.iptables}/bin/iptables -C INPUT -p udp --dport "$UDP_PORT" -j ACCEPT 2>/dev/null || \
+                    ${pkgs.iptables}/bin/iptables -A INPUT -p udp --dport "$UDP_PORT" -j ACCEPT
+                  
+                  ${pkgs.iptables}/bin/iptables -C INPUT -p tcp --dport "$TCP_PORT" -j ACCEPT 2>/dev/null || \
+                    ${pkgs.iptables}/bin/iptables -A INPUT -p tcp --dport "$TCP_PORT" -j ACCEPT
+                  
+                  echo "Firewall INPUT rules updated for ports: UDP=$UDP_PORT, TCP=$TCP_PORT"
+                  
+                  # Update qBittorrent listening port via API
+                  echo "Logging into qBittorrent API..."
+                  COOKIE=$(${pkgs.curl}/bin/curl -s -i \
+                      --header "Referer: http://localhost:${toString serviceCfg.ports.port0}" \
+                      --data "username=user&password=$PASSWORD" \
+                      "http://localhost:${toString serviceCfg.ports.port0}/api/v2/auth/login" | \
+                      ${pkgs.gnugrep}/bin/grep -i "set-cookie" | ${pkgs.gawk}/bin/awk -F'SID=|;' '{print $2}')                  
+                  if [ -n "$COOKIE" ]; then
+                    echo "Authentication successful, updating port..."
+                    ${pkgs.curl}/bin/curl -s \
+                      --cookie "SID=$COOKIE" \
+                      --data "json={\"listen_port\":$UDP_PORT}" \
+                      "http://localhost:${toString serviceCfg.ports.port0}/api/v2/app/setPreferences"
+                    
+                    echo "Updated qBittorrent listening port to $UDP_PORT"
+                  else
+                    echo "WARNING: Failed to authenticate with qBittorrent API"
+                  fi
+                else
+                  echo "ERROR: Failed to get forwarded ports"
+                  echo "UDP output: $UDP_OUTPUT"
+                  echo "TCP output: $TCP_OUTPUT"
+                  exit 1
+                fi
+                
+                sleep 45
+              done
+            '';
+          };
         };
       };
 
@@ -173,7 +273,7 @@ in
           {
             mountPoint = "/run/secrets";
             proto = "virtiofs";
-            source = "/run/secrets/proton";
+            source = "/run/secrets/torrent";
             tag = "host_secrets";
           }
         ];
@@ -181,9 +281,12 @@ in
 
       environment.systemPackages = builtins.attrValues {
         inherit (pkgs)
-          wireguard-tools
-          speedtest-go
           bottom
+          gawk
+          iptables
+          libnatpmp
+          speedtest-go
+          wireguard-tools
           ;
       };
     };
@@ -214,10 +317,15 @@ in
       group = "caddy";
       mode = "0400";
     };
-    "proton/wireguard-pass" = {
+    "torrent/wireguard-pass" = {
       owner = "root";
       mode = "0400";
     };
+    "torrent/qbittorrent-pass" = {
+      owner = "root";
+      mode = "0400";
+    };
+
   };
 
   security.acme.certs."${host}" = {
@@ -240,4 +348,16 @@ in
       "d /var/log/caddy 755 caddy caddy -"
     ];
   };
+
+  networking.firewall = {
+    allowedTCPPorts = [
+      38834
+      torrentPort
+    ];
+    allowedUDPPorts = [
+      38834
+      torrentPort
+    ];
+  };
+
 }

secrets/secrets.yaml

@@ -55,8 +55,9 @@ firefly-iii:
     pass: ENC[AES256_GCM,data:WjHcoTuEzEq9pfw4QoqRjI4jhu5VPEMOXlHL0olg9dqUj4EGa1Shv5T/kIxdRFuao0y3zQ==,iv:4/fmFOxxDLzplsNGpSJMQOeoNviZw2c2pFlB1ZkRu+o=,tag:7TQ2q/kEFDU4tZxPx53ebw==,type:str]
     data: ENC[AES256_GCM,data:921LhcRTWVk24eEAQoDMV+RllSP3PbSXCCIDXlQA80Mq,iv:YXEgas77DgdyPTnBZa/ySjcERBIwmdDZJbijeNKNF24=,tag:Wj25wA7tLJ2bZ/faG9DUhg==,type:str]
     smtp: ENC[AES256_GCM,data:+e4MiRZ2WOZyWYpMf+By1Eb45ih4TA+svLI2+00yQk82,iv:+52+kJouMwkOSDEaOCA8V80+wT/VzNxgtCkOO68SCdk=,tag:YrtrJAXIhQpsUTEeYvrVwQ==,type:str]
-proton:
+torrent:
-    wireguard-pass: ENC[AES256_GCM,data:u3riHMDyK+DxFAGpdP7zTqZMfp//W3pb3WRp/iS/pAf6ItY9PNFClm7Gh4Dn,iv:8jfPQALR+J3VZVL+a2XHwuL8P8yhZ4OcjhVbCTBADwE=,tag:H42pKD/tlDXUlIVVzdv+DQ==,type:str]
+    wireguard-pass: ENC[AES256_GCM,data:fNNHuOvaRRpiS7c9n/l6lB0A1J4VboJxIh+hrMrTfjFS2grpgRATLHhjZ/wo,iv:CVZIG3Gq+O1/qPqu0XBH/5XsTpAe9xe52/CtBHaIOPI=,tag:8RfoFjz0Ecmx8O7Bt/90ig==,type:str]
+    qbittorrent-pass: ENC[AES256_GCM,data:W1p7cYWbBNeAtEEL7Tb0pG27TSniqTrNMN6gxFFlli27,iv:seiWOr6V8pyjioBkKKEtCXC17RctDScA37E7uFbnmzk=,tag:KYz92O6XUvJob74LnGlYNg==,type:str]
 backblaze:
     env: ENC[AES256_GCM,data:cdOYt77KocuGB3aqYz13oBokoLkEIgI1AW+cYC5uutgZYujG3PqoLEh6Gvbpzn3O+0OWg1/4UAYr4f2v7oCsgwFzPWS3HrhqC5+kIBjrPCyAnxDxlu2xaQ9hR+ogFh5UTDo=,iv:6+jx4Dj5CNV72DAss6NNYm44f9gSHco/EUBvL2o2CNI=,tag:6/cx84MgTDqQJxu/zINEeA==,type:str]
     repo: ENC[AES256_GCM,data:sRae9XELIfkWPaXelCdgEXIDbLTHVqGcRO0o+WA9aBfB8MUw92JjRCYgMgGXT0Apy38eszyuEHFB3XPpRmtQ7g==,iv:EilVA9zdHm6B9pTIhNxyj6Th1248nXvh0kpnEqZJ5HI=,tag:q9ASAgx5vgY0IePws4rT5Q==,type:str]
@@ -73,7 +74,7 @@ sops:
             bXBOa1VSakoyaWxpODJEOU11QUZCaUEK8Ch9Ten3DdrPHF1DTH2qei85AlHUOaLD
             aNfzakake7ej+MxJYdKEU0bcWofNMKzIlZa2uM10KZSENDP8d8qlig==
             -----END AGE ENCRYPTED FILE-----
-    lastmodified: "2025-11-27T09:53:41Z"
+    lastmodified: "2025-11-27T18:54:52Z"
-    mac: ENC[AES256_GCM,data:fV10gBOFgCTTMWAKv8tGnCz3TG0t0G19di4N4wEi2lsHeYDBk8ijumOM/wLY6Zds80y5u6s6hGwFpCcY5pChjQ/E/pOURHAY7rIqQmGm9yQnpECCfWLDJVgsQjliYRPD76WTEKlsevz/XCGfdITNuRAlU7tuWEEEgXvIKt+0Z/8=,iv:dA/zt7WQA5w+dZM53VunucZAQTBKRyzLaWaShhTMWzI=,tag:CUD7KGes5pNquMJfCm6dYQ==,type:str]
+    mac: ENC[AES256_GCM,data:ZxkJZUJJ1AfDlmxAy8Botu73EPt+1prsdbX7RhU9bVNaEhpPzrvqlO74D8ek/OqFG51k1K4mdW5SWXWs/D5oR34i/yA+329j4jHNAe3Yajkx1gn/xDEa/kgiVGkc7dE3dnzmy5zr4X8U06khJl9rg+qLujke0GCgIv+82xkFFRI=,iv:0UYNIZTxXdPqrZsjVYNGfSlt6UH3+Q102EF6XeC5yh4=,tag:3oj0X73xRnGBXWdGsUv2xg==,type:str]
     unencrypted_suffix: _unencrypted
     version: 3.11.0

systems/ceres/config/networking.nix

@@ -10,35 +10,37 @@ in
 {
   microvm.host.enable = true;
 
-  systemd.network.enable = true;
+  systemd.network = {
-
+    enable = true;
-  systemd.network.netdevs."10-br-vms" = {
+    netdevs."10-br-vms" = {
-    netdevConfig = {
+      netdevConfig = {
-      Name = "br-vms";
+        Name = "br-vms";
-      Kind = "bridge";
+        Kind = "bridge";
+      };
     };
-  };
 
-  systemd.network.networks."20-lan" = {
+    networks = {
-    matchConfig.Name = [
+      "20-lan" = {
-      "enp10s0"
+        matchConfig.Name = [
-      "vm-*"
+          "enp10s0"
-    ];
+          "vm-*"
-    networkConfig = {
+        ];
-      Bridge = "br-vms";
+        networkConfig = {
+          Bridge = "br-vms";
+        };
+      };
+      "30-br-vms" = {
+        matchConfig.Name = "br-vms";
+        networkConfig = {
+          Address = "192.168.50.240/24";
+          Gateway = "192.168.50.1";
+          DNS = [ "192.168.50.1" ];
+        };
+        linkConfig.RequiredForOnline = "routable";
+      };
     };
   };
 
-  systemd.network.networks."30-br-vms" = {
-    matchConfig.Name = "br-vms";
-    networkConfig = {
-      Address = "192.168.50.240/24";
-      Gateway = "192.168.50.1";
-      DNS = [ "192.168.50.1" ];
-    };
-    linkConfig.RequiredForOnline = "routable";
-  };
-
   networking = {
     hostName = ceres.name;
     networkmanager.enable = false;
@@ -59,6 +61,19 @@ in
         wireguardService.ports.port0 # WireGuard
         wireguardService.ports.port1 # WireGuard
       ];
+      # Add port ranges for VPN dynamic port forwarding
+      allowedTCPPortRanges = [
+        {
+          from = 30000;
+          to = 65535;
+        }
+      ];
+      allowedUDPPortRanges = [
+        {
+          from = 30000;
+          to = 65535;
+        }
+      ];
     };
   };