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/* Copyright (C) 2019 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#pragma once
#include <libknot/libknot.h>
#if HAVE_MAXMINDDB
#include <maxminddb.h>
#endif
#if HAVE_MAXMINDDB
#define geodb_t MMDB_s
#define geodb_data_t MMDB_entry_data_s
#else
#define geodb_t void
#define geodb_data_t char
#endif
// MaxMind DB related constants.
#define GEODB_MAX_PATH_LEN 8
#define GEODB_MAX_DEPTH 8
typedef enum {
GEODB_KEY_ID,
GEODB_KEY_TXT
} geodb_key_type_t;
static const knot_lookup_t geodb_key_types[] = {
{ GEODB_KEY_ID, "id" },
{ GEODB_KEY_TXT, "" },
{ 0, NULL }
};
typedef struct {
geodb_key_type_t type;
char *path[GEODB_MAX_PATH_LEN + 1]; // MMDB_aget_value() requires last member to be NULL.
} geodb_path_t;
int parse_geodb_path(geodb_path_t *path, const char *input);
int parse_geodb_data(const char *input, void **geodata, uint32_t *geodata_len,
uint8_t *geodepth, geodb_path_t *path, uint16_t path_cnt);
bool geodb_available(void);
geodb_t *geodb_open(const char *filename);
void geodb_close(geodb_t *geodb);
int geodb_query(geodb_t *geodb, geodb_data_t *entries, struct sockaddr *remote,
geodb_path_t *paths, uint16_t path_cnt, uint16_t *netmask);
void geodb_fill_geodata(geodb_data_t *entries, uint16_t path_cnt,
void **geodata, uint32_t *geodata_len, uint8_t *geodepth);
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