Wireshark MCP

import logging import ipaddress import copy from typing import Dict, List, Any, Optional, Set class IPProtectionManager: """ Manages IP address protection strategies for network packet analysis. This class provides capabilities to anonymize, obscure, or redact IP addresses within packet captures to protect sensitive network information while still allowing for meaningful analysis. It supports various protection strategies including pseudonymization, partial obfuscation, and full redaction. """ REDACT_FULL = "REDACT_FULL" # Replace entire IP with a marker REDACT_HOST = "REDACT_HOST" # Preserve network portion, redact host portion PSEUDONYMIZE = "PSEUDONYMIZE" # Replace with consistent pseudonym PARTIAL_MASK = "PARTIAL_MASK" # Mask parts of the IP (like 192.168.x.x) def __init__(self, protection_mode: str = PARTIAL_MASK): """ Initialize the IP Protection Manager. Args: protection_mode: The default protection strategy to use """ self.protection_mode = protection_mode self.ip_mapping = {} # For pseudonymization self.protected_ranges = [] # IP ranges requiring protection self.pseudonym_counter = 0 # Counter for generating pseudonyms self.logger = logging.getLogger(__name__) def add_protected_range(self, cidr_range: str): """ Add an IP range that should be protected. Args: cidr_range: IP range in CIDR notation (e.g., '192.168.0.0/16') """ try: network = ipaddress.ip_network(cidr_range, strict=False) self.protected_ranges.append(network) self.logger.info(f"Added protected IP range: {cidr_range}") except ValueError as e: self.logger.error(f"Invalid CIDR range '{cidr_range}': {e}") def should_protect_ip(self, ip_address: str) -> bool: """ Determine if an IP address should be protected. Args: ip_address: The IP address to check Returns: True if the IP should be protected, False otherwise """ try: ip = ipaddress.ip_address(ip_address) # Check if IP is in any protected range for network in self.protected_ranges: if ip in network: return True # Always protect private addresses by default return ip.is_private except ValueError: self.logger.warning(f"Invalid IP address format: {ip_address}") return False def protect_ip(self, ip_address: str, mode: Optional[str] = None) -> str: """ Apply protection to an IP address using the specified mode. Args: ip_address: The IP address to protect mode: The protection mode to use (defaults to self.protection_mode) Returns: The protected version of the IP address """ if not mode: mode = self.protection_mode if not self.should_protect_ip(ip_address): return ip_address try: ip = ipaddress.ip_address(ip_address) is_ipv4 = isinstance(ip, ipaddress.IPv4Address) if mode == self.REDACT_FULL: return "[REDACTED]" if is_ipv4 else "[REDACTED_IPV6]" elif mode == self.REDACT_HOST: if is_ipv4: # For IPv4, preserve network portion (first two octets) octets = ip_address.split('.') return f"{octets[0]}.{octets[1]}.[x].[x]" else: # For IPv6, preserve network portion (first 4 hextets) hextets = ip_address.split(':') preserved = hextets[:4] return ':'.join(preserved) + ':[x]:[x]:[x]:[x]' elif mode == self.PSEUDONYMIZE: if ip_address not in self.ip_mapping: # Generate a new pseudonym self.pseudonym_counter += 1 if is_ipv4: self.ip_mapping[ip_address] = f"10.0.{self.pseudonym_counter // 256}.{self.pseudonym_counter % 256}" else: self.ip_mapping[ip_address] = f"fd00::{self.pseudonym_counter:x}" return self.ip_mapping[ip_address] elif mode == self.PARTIAL_MASK: if is_ipv4: octets = ip_address.split('.') return f"{octets[0]}.{octets[1]}.x.{octets[3]}" else: hextets = ip_address.split(':') # Mask middle 4 hextets masked = hextets[:2] + ['x', 'x', 'x', 'x'] + hextets[-2:] return ':'.join(masked) else: self.logger.warning(f"Unknown protection mode: {mode}") return ip_address except ValueError: self.logger.warning(f"Invalid IP address format: {ip_address}") return ip_address def protect_packet(self, packet: Dict[str, Any], mode: Optional[str] = None) -> Dict[str, Any]: """ Apply IP protection to all IP addresses in a packet. Args: packet: The packet data dictionary mode: The protection mode to use Returns: The packet with protected IP addresses """ if not mode: mode = self.protection_mode # Create a deep copy to avoid modifying the original protected_packet = copy.deepcopy(packet) # Protect IP addresses in the IP layer if 'ip' in protected_packet: if 'src' in protected_packet['ip']: protected_packet['ip']['src'] = self.protect_ip(protected_packet['ip']['src'], mode) if 'dst' in protected_packet['ip']: protected_packet['ip']['dst'] = self.protect_ip(protected_packet['ip']['dst'], mode) # Recursively search for IP addresses in other fields # This is a simplified approach - a real implementation would be more comprehensive # to detect IP addresses in all packet fields and protocols return protected_packet def get_ip_mapping(self) -> Dict[str, str]: """ Get the mapping of original IPs to pseudonyms. Returns: Dictionary mapping original IPs to their pseudonyms """ return self.ip_mapping def reset_mapping(self): """ Reset the IP pseudonym mapping. """ self.ip_mapping = {} self.pseudonym_counter = 0