strongswan/src/charon/config/backends/sqlite_backend.c

310 lines
9.3 KiB
C

/**
* @file sqlite_backend.c
*
* @brief Implementation of sqlite_backend_t.
*
*/
/*
* Copyright (C) 2006 Martin Willi
* Hochschule fuer Technik Rapperswil
*
* 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 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* 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.
*/
#include <string.h>
#include <sqlite3.h>
#include "sqlite_backend.h"
#include <daemon.h>
typedef struct private_sqlite_backend_t private_sqlite_backend_t;
/**
* Private data of an sqlite_backend_t object
*/
struct private_sqlite_backend_t {
/**
* Public part
*/
sqlite_backend_t public;
/**
* SQLite database handle
*/
sqlite3 *db;
};
/**
* implements backen_t.get_ike_cfg.
*/
static ike_cfg_t *get_ike_cfg(private_sqlite_backend_t *this,
host_t *my_host, host_t *other_host)
{
return NULL;
}
/**
* add TS with child "id" to "child_cfg"
*/
static void add_ts(private_sqlite_backend_t *this, child_cfg_t *child_cfg, int id)
{
sqlite3_stmt *stmt;
if (sqlite3_prepare_v2(this->db,
"SELECT type, protocol, start_addr, end_addr, start_port, end_port, kind "
"FROM traffic_selectors, child_config_traffic_selector "
"ON traffic_selectors.oid = child_config_traffic_selector.traffic_selector "
"WHERE child_config_traffic_selector.child_cfg = ?;",
-1, &stmt, NULL) == SQLITE_OK &&
sqlite3_bind_int(stmt, 1, id) == SQLITE_OK)
{
while (sqlite3_step(stmt) == SQLITE_ROW)
{
traffic_selector_t *ts;
bool local = FALSE;
enum {
TS_LOCAL = 0,
TS_REMOTE = 1,
TS_LOCAL_DYNAMIC = 2,
TS_REMOTE_DYNAMIC = 3,
} kind;
kind = sqlite3_column_int(stmt, 6);
switch (kind)
{
case TS_LOCAL:
local = TRUE;
/* FALL */
case TS_REMOTE:
ts = traffic_selector_create_from_string(
sqlite3_column_int(stmt, 1), /* protocol */
sqlite3_column_int(stmt, 0), /* type */
(char*)sqlite3_column_text(stmt, 2), /* from addr */
sqlite3_column_int(stmt, 4), /* from port */
(char*)sqlite3_column_text(stmt, 3), /* to addr */
sqlite3_column_int(stmt, 5)); /* to port */
break;
case TS_LOCAL_DYNAMIC:
local = TRUE;
/* FALL */
case TS_REMOTE_DYNAMIC:
ts = traffic_selector_create_dynamic(
sqlite3_column_int(stmt, 1), /* protocol */
sqlite3_column_int(stmt, 0), /* type */
sqlite3_column_int(stmt, 4), /* from port */
sqlite3_column_int(stmt, 5)); /* to port */
break;
default:
continue;
}
if (ts)
{
child_cfg->add_traffic_selector(child_cfg, local, ts);
}
}
}
sqlite3_finalize(stmt);
}
/**
* add childrens belonging to config with "id" to "peer_cfg"
*/
static void add_children(private_sqlite_backend_t *this, peer_cfg_t *peer_cfg, int id)
{
sqlite3_stmt *stmt;
child_cfg_t *child_cfg;
if (sqlite3_prepare_v2(this->db,
"SELECT child_configs.oid, name, updown, hostaccess, mode, "
"lifetime, rekeytime, jitter "
"FROM child_configs, peer_config_child_config "
"ON child_configs.oid = peer_config_child_config.child_cfg "
"WHERE peer_config_child_config.peer_cfg = ?;",
-1, &stmt, NULL) == SQLITE_OK &&
sqlite3_bind_int(stmt, 1, id) == SQLITE_OK)
{
while (sqlite3_step(stmt) == SQLITE_ROW)
{
child_cfg = child_cfg_create(
(char*)sqlite3_column_text(stmt, 1), /* name */
sqlite3_column_int(stmt, 5), /* lifetime */
sqlite3_column_int(stmt, 6), /* rekeytime */
sqlite3_column_int(stmt, 7), /* jitter */
(char*)sqlite3_column_text(stmt, 2), /* updown */
sqlite3_column_int(stmt, 3), /* hostaccess */
sqlite3_column_int(stmt, 4)); /* mode */
add_ts(this, child_cfg, sqlite3_column_int(stmt, 0));
child_cfg->add_proposal(child_cfg, proposal_create_default(PROTO_ESP));
peer_cfg->add_child_cfg(peer_cfg, child_cfg);
}
}
sqlite3_finalize(stmt);
}
/**
* processing function for get_peer_cfg and get_peer_cfg_by_name
*/
static peer_cfg_t *process_peer_cfg_row(private_sqlite_backend_t *this,
sqlite3_stmt *stmt)
{
host_t *local_host, *remote_host, *local_vip = NULL, *remote_vip = NULL;
identification_t *local_id, *remote_id;
peer_cfg_t *peer_cfg;
ike_cfg_t *ike_cfg;
local_host = host_create_from_string((char*)sqlite3_column_text(stmt, 17), IKEV2_UDP_PORT);
remote_host = host_create_from_string((char*)sqlite3_column_text(stmt, 18), IKEV2_UDP_PORT);
if (sqlite3_column_text(stmt, 15))
{
local_vip = host_create_from_string((char*)sqlite3_column_text(stmt, 15), 0);
}
if (sqlite3_column_text(stmt, 16))
{
remote_vip = host_create_from_string((char*)sqlite3_column_text(stmt, 16), 0);
}
local_id = identification_create_from_string((char*)sqlite3_column_text(stmt, 2));
remote_id = identification_create_from_string((char*)sqlite3_column_text(stmt, 3));
if (local_host && remote_host && local_id && remote_id)
{
ike_cfg = ike_cfg_create(sqlite3_column_int(stmt, 19), FALSE,
local_host, remote_host);
ike_cfg->add_proposal(ike_cfg, proposal_create_default(PROTO_IKE));
peer_cfg = peer_cfg_create(
(char*)sqlite3_column_text(stmt, 1), /* name */
2, ike_cfg, local_id, remote_id, NULL, NULL, linked_list_create(),
sqlite3_column_int(stmt, 4), /* cert_policy */
sqlite3_column_int(stmt, 5), /* auth_method */
sqlite3_column_int(stmt, 6), /* eap_type */
sqlite3_column_int(stmt, 7), /* keyingtries */
sqlite3_column_int(stmt, 8), /* rekey_time */
sqlite3_column_int(stmt, 9), /* reauth_time */
sqlite3_column_int(stmt, 10), /* jitter_time */
sqlite3_column_int(stmt, 11), /* over_time */
sqlite3_column_int(stmt, 14), /* mobike */
sqlite3_column_int(stmt, 12), /* dpd_delay */
sqlite3_column_int(stmt, 13), /* dpd_action */
local_vip, remote_vip, FALSE, NULL, NULL);
add_children(this, peer_cfg, sqlite3_column_int(stmt, 0));
return peer_cfg;
}
DESTROY_IF(local_host);
DESTROY_IF(remote_host);
DESTROY_IF(local_id);
DESTROY_IF(remote_id);
DESTROY_IF(local_vip);
DESTROY_IF(remote_vip);
return NULL;
}
/**
* implements backend_t.get_peer_cfg.
*/
static peer_cfg_t *get_peer_cfg(private_sqlite_backend_t *this,
identification_t *my_id, identification_t *other_id,
ca_info_t *other_ca_info)
{
sqlite3_stmt *stmt;
char local[256], remote[256];
peer_cfg_t *peer_cfg = NULL;
snprintf(local, sizeof(local), "%D", my_id);
snprintf(remote, sizeof(remote), "%D", other_id);
if (sqlite3_prepare_v2(this->db,
"SELECT peer_configs.oid, name, local_id, remote_id, cert_policy, "
"auth_method, eap_type, keyingtries, "
"rekey_time, reauth_time, jitter_time, over_time, "
"dpd_delay, dpd_action, mobike, local_vip, remote_vip, "
"local, remote, certreq "
"FROM peer_configs, ike_configs "
"ON peer_configs.ike_cfg = ike_configs.oid "
"WHERE local_id = ? and remote_id = ?;", -1, &stmt, NULL) == SQLITE_OK &&
sqlite3_bind_text(stmt, 1, local, -1, SQLITE_STATIC) == SQLITE_OK &&
sqlite3_bind_text(stmt, 2, remote, -1, SQLITE_STATIC) == SQLITE_OK &&
sqlite3_step(stmt) == SQLITE_ROW)
{
peer_cfg = process_peer_cfg_row(this, stmt);
}
sqlite3_finalize(stmt);
return peer_cfg;
}
/**
* implements backend_t.get_peer_cfg_by_name.
*/
static peer_cfg_t *get_peer_cfg_by_name(private_sqlite_backend_t *this, char *name)
{
sqlite3_stmt *stmt;
peer_cfg_t *peer_cfg = NULL;
if (sqlite3_prepare_v2(this->db,
"SELECT peer_configs.oid, name, local_id, remote_id, cert_policy, "
"auth_method, eap_type, keyingtries, lifetime, rekeytime, jitter, "
"dpd_delay, dpd_action, reauth, mobike, local_vip, remote_vip, "
"local, remote, certreq "
"FROM peer_configs, ike_configs "
"ON peer_configs.ike_cfg = ike_configs.oid "
"WHERE name = ? ;", -1, &stmt, NULL) == SQLITE_OK &&
sqlite3_bind_text(stmt, 1, name, -1, SQLITE_STATIC) == SQLITE_OK &&
sqlite3_step(stmt) == SQLITE_ROW)
{
peer_cfg = process_peer_cfg_row(this, stmt);
}
sqlite3_finalize(stmt);
return peer_cfg;
}
/**
* Implementation of backend_t.is_writable.
*/
static bool is_writeable(private_sqlite_backend_t *this)
{
return FALSE;
}
/**
* Implementation of backend_t.destroy.
*/
static void destroy(private_sqlite_backend_t *this)
{
sqlite3_close(this->db);
free(this);
}
/**
* Described in header.
*/
backend_t *backend_create(void)
{
private_sqlite_backend_t *this = malloc_thing(private_sqlite_backend_t);
this->public.backend.get_ike_cfg = (ike_cfg_t* (*)(backend_t*, host_t*, host_t*))get_ike_cfg;
this->public.backend.get_peer_cfg = (peer_cfg_t* (*)(backend_t*,identification_t*,identification_t*,ca_info_t*))get_peer_cfg;
this->public.backend.get_peer_cfg_by_name = (peer_cfg_t* (*)(backend_t*,char*))get_peer_cfg_by_name;
this->public.backend.is_writeable = (bool(*) (backend_t*))is_writeable;
this->public.backend.destroy = (void (*)(backend_t*))destroy;
if (sqlite3_open(IPSEC_DIR "/manager.db", &this->db) != SQLITE_OK)
{
DBG1(DBG_CFG, "opening SQLite database '" IPSEC_DIR "/manager.db' failed.");
destroy(this);
return NULL;
}
return &this->public.backend;
}