Module geo_filter 

GeoIP filtering for Sentinel proxy

This module provides geolocation-based request filtering using MaxMind GeoLite2/GeoIP2 and IP2Location databases. Filters can block, allow, or log requests based on country.

Features

• Support for MaxMind (.mmdb) and IP2Location (.bin) databases
• Block mode (blocklist) and Allow mode (allowlist)
• Log-only mode for monitoring without blocking
• Per-filter IP→Country caching with configurable TTL
• Configurable fail-open/fail-closed on lookup errors
• X-GeoIP-Country response header injection

Structs

GeoDatabaseWatcher

Watches geo database files for changes and triggers reloads

GeoFilterManager

Manages all geo filter instances

GeoFilterPool

A single geo filter instance with its database and cache

GeoFilterResult

Result of a geo filter check

Ip2LocationDatabase

IP2Location database backend

MaxMindDatabase

MaxMind GeoLite2/GeoIP2 database backend

Enums

GeoLookupError

Errors that can occur during geo lookup

Traits

GeoDatabase

Trait for GeoIP database backends