/* $NetBSD: geoip.c,v 1.6.2.1 2024/02/25 15:43:05 martin Exp $ */ /* * Copyright (C) Internet Systems Consortium, Inc. ("ISC") * * SPDX-License-Identifier: MPL-2.0 * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, you can obtain one at https://mozilla.org/MPL/2.0/. * * See the COPYRIGHT file distributed with this work for additional * information regarding copyright ownership. */ /*! \file */ #if defined(HAVE_GEOIP2) #include #endif /* if defined(HAVE_GEOIP2) */ #include #include #include #include #include #include #include static dns_geoip_databases_t geoip_table; #if defined(HAVE_GEOIP2) static MMDB_s geoip_country, geoip_city, geoip_as, geoip_isp, geoip_domain; static MMDB_s * open_geoip2(const char *dir, const char *dbfile, MMDB_s *mmdb) { char pathbuf[PATH_MAX]; unsigned int n; int ret; n = snprintf(pathbuf, sizeof(pathbuf), "%s/%s", dir, dbfile); if (n >= sizeof(pathbuf)) { isc_log_write(named_g_lctx, NAMED_LOGCATEGORY_GENERAL, NAMED_LOGMODULE_SERVER, ISC_LOG_ERROR, "GeoIP2 database '%s/%s': path too long", dir, dbfile); return (NULL); } ret = MMDB_open(pathbuf, MMDB_MODE_MMAP, mmdb); if (ret == MMDB_SUCCESS) { isc_log_write(named_g_lctx, NAMED_LOGCATEGORY_GENERAL, NAMED_LOGMODULE_SERVER, ISC_LOG_INFO, "opened GeoIP2 database '%s'", pathbuf); return (mmdb); } isc_log_write(named_g_lctx, NAMED_LOGCATEGORY_GENERAL, NAMED_LOGMODULE_SERVER, ISC_LOG_DEBUG(1), "unable to open GeoIP2 database '%s' (status %d)", pathbuf, ret); return (NULL); } #endif /* HAVE_GEOIP2 */ void named_geoip_init(void) { #if defined(HAVE_GEOIP2) if (named_g_geoip == NULL) { named_g_geoip = &geoip_table; } #else /* if defined(HAVE_GEOIP2) */ return; #endif /* if defined(HAVE_GEOIP2) */ } void named_geoip_load(char *dir) { #if defined(HAVE_GEOIP2) REQUIRE(dir != NULL); isc_log_write(named_g_lctx, NAMED_LOGCATEGORY_GENERAL, NAMED_LOGMODULE_SERVER, ISC_LOG_INFO, "looking for GeoIP2 databases in '%s'", dir); named_g_geoip->country = open_geoip2(dir, "GeoIP2-Country.mmdb", &geoip_country); if (named_g_geoip->country == NULL) { named_g_geoip->country = open_geoip2( dir, "GeoLite2-Country.mmdb", &geoip_country); } named_g_geoip->city = open_geoip2(dir, "GeoIP2-City.mmdb", &geoip_city); if (named_g_geoip->city == NULL) { named_g_geoip->city = open_geoip2(dir, "GeoLite2-City.mmdb", &geoip_city); } named_g_geoip->as = open_geoip2(dir, "GeoIP2-ASN.mmdb", &geoip_as); if (named_g_geoip->as == NULL) { named_g_geoip->as = open_geoip2(dir, "GeoLite2-ASN.mmdb", &geoip_as); } named_g_geoip->isp = open_geoip2(dir, "GeoIP2-ISP.mmdb", &geoip_isp); named_g_geoip->domain = open_geoip2(dir, "GeoIP2-Domain.mmdb", &geoip_domain); #else /* if defined(HAVE_GEOIP2) */ UNUSED(dir); return; #endif /* if defined(HAVE_GEOIP2) */ } void named_geoip_unload(void) { #ifdef HAVE_GEOIP2 if (named_g_geoip->country != NULL) { MMDB_close(named_g_geoip->country); named_g_geoip->country = NULL; } if (named_g_geoip->city != NULL) { MMDB_close(named_g_geoip->city); named_g_geoip->city = NULL; } if (named_g_geoip->as != NULL) { MMDB_close(named_g_geoip->as); named_g_geoip->as = NULL; } if (named_g_geoip->isp != NULL) { MMDB_close(named_g_geoip->isp); named_g_geoip->isp = NULL; } if (named_g_geoip->domain != NULL) { MMDB_close(named_g_geoip->domain); named_g_geoip->domain = NULL; } #endif /* ifdef HAVE_GEOIP2 */ } void named_geoip_shutdown(void) { #ifdef HAVE_GEOIP2 named_geoip_unload(); #endif /* HAVE_GEOIP2 */ }