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-/* Simple HLR/VLR database backend using dbi */
-/* (C) 2008 by Jan Luebbe <jluebbe@debian.org>
- * (C) 2009 by Holger Hans Peter Freyther <zecke@selfish.org>
- * All Rights Reserved
- *
- * 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.
- *
- * 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, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- */
-
-#include <openbsc/gsm_data.h>
-#include <openbsc/db.h>
-
-#include <libgen.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-#include <dbi/dbi.h>
-
-static char *db_basename = NULL;
-static char *db_dirname = NULL;
-static dbi_conn conn;
-
-static char *create_stmts[] = {
- "CREATE TABLE IF NOT EXISTS Meta ("
- "id INTEGER PRIMARY KEY AUTOINCREMENT, "
- "key TEXT UNIQUE NOT NULL, "
- "value TEXT NOT NULL"
- ")",
- "INSERT OR IGNORE INTO Meta "
- "(key, value) "
- "VALUES "
- "('revision', '1')",
- "CREATE TABLE IF NOT EXISTS Subscriber ("
- "id INTEGER PRIMARY KEY AUTOINCREMENT, "
- "created TIMESTAMP NOT NULL, "
- "updated TIMESTAMP NOT NULL, "
- "imsi NUMERIC UNIQUE NOT NULL, "
- "name TEXT, "
- "extension TEXT UNIQUE, "
- "authorized INTEGER NOT NULL DEFAULT 0, "
- "tmsi TEXT UNIQUE, "
- "lac INTEGER NOT NULL DEFAULT 0"
- ")",
- "CREATE TABLE IF NOT EXISTS Equipment ("
- "id INTEGER PRIMARY KEY AUTOINCREMENT, "
- "created TIMESTAMP NOT NULL, "
- "updated TIMESTAMP NOT NULL, "
- "name TEXT, "
- "imei NUMERIC UNIQUE NOT NULL"
- ")",
- "CREATE TABLE IF NOT EXISTS EquipmentWatch ("
- "id INTEGER PRIMARY KEY AUTOINCREMENT, "
- "created TIMESTAMP NOT NULL, "
- "updated TIMESTAMP NOT NULL, "
- "subscriber_id NUMERIC NOT NULL, "
- "equipment_id NUMERIC NOT NULL, "
- "UNIQUE (subscriber_id, equipment_id) "
- ")",
- "CREATE TABLE IF NOT EXISTS SMS ("
- "id INTEGER PRIMARY KEY AUTOINCREMENT, "
- "created TIMESTAMP NOT NULL, "
- "sent TIMESTAMP, "
- "sender_id NUMERIC NOT NULL, "
- "receiver_id NUMERIC NOT NULL, "
- "header NUMERIC, "
- "text TEXT NOT NULL "
- ")",
- "CREATE TABLE IF NOT EXISTS VLR ("
- "id INTEGER PRIMARY KEY AUTOINCREMENT, "
- "created TIMESTAMP NOT NULL, "
- "updated TIMESTAMP NOT NULL, "
- "subscriber_id NUMERIC UNIQUE NOT NULL, "
- "last_bts NUMERIC NOT NULL "
- ")",
-};
-
-void db_error_func(dbi_conn conn, void* data) {
- const char* msg;
- dbi_conn_error(conn, &msg);
- printf("DBI: %s\n", msg);
-}
-
-int db_init(const char *name) {
- dbi_initialize(NULL);
- conn = dbi_conn_new("sqlite3");
- if (conn==NULL) {
- printf("DB: Failed to create connection.\n");
- return 1;
- }
-
- dbi_conn_error_handler( conn, db_error_func, NULL );
-
- /* MySQL
- dbi_conn_set_option(conn, "host", "localhost");
- dbi_conn_set_option(conn, "username", "your_name");
- dbi_conn_set_option(conn, "password", "your_password");
- dbi_conn_set_option(conn, "dbname", "your_dbname");
- dbi_conn_set_option(conn, "encoding", "UTF-8");
- */
-
- /* SqLite 3 */
- db_basename = strdup(name);
- db_dirname = strdup(name);
- dbi_conn_set_option(conn, "sqlite3_dbdir", dirname(db_dirname));
- dbi_conn_set_option(conn, "dbname", basename(db_basename));
-
- if (dbi_conn_connect(conn) < 0) {
- free(db_dirname);
- free(db_basename);
- db_dirname = db_basename = NULL;
- return 1;
- }
-
- return 0;
-}
-
-int db_prepare() {
- dbi_result result;
- int i;
-
- for (i = 0; i < ARRAY_SIZE(create_stmts); i++) {
- result = dbi_conn_query(conn, create_stmts[i]);
- if (result==NULL) {
- printf("DB: Failed to create some table.\n");
- return 1;
- }
- dbi_result_free(result);
- }
-
- return 0;
-}
-
-int db_fini() {
- dbi_conn_close(conn);
- dbi_shutdown();
-
- if (db_dirname)
- free(db_dirname);
- if (db_basename)
- free(db_basename);
- return 0;
-}
-
-struct gsm_subscriber* db_create_subscriber(char *imsi) {
- dbi_result result;
- struct gsm_subscriber* subscr;
-
- /* Is this subscriber known in the db? */
- subscr = db_get_subscriber(GSM_SUBSCRIBER_IMSI, imsi);
- if (subscr) {
- result = dbi_conn_queryf(conn,
- "UPDATE Subscriber set updated = datetime('now') "
- "WHERE imsi = %s " , imsi);
- if (result==NULL) {
- printf("DB: failed to update timestamp\n");
- } else {
- dbi_result_free(result);
- }
- return subscr;
- }
-
- subscr = subscr_alloc();
- if (!subscr)
- return NULL;
- result = dbi_conn_queryf(conn,
- "INSERT INTO Subscriber "
- "(imsi, created, updated) "
- "VALUES "
- "(%s, datetime('now'), datetime('now')) ",
- imsi
- );
- if (result==NULL) {
- printf("DB: Failed to create Subscriber by IMSI.\n");
- }
- subscr->id = dbi_conn_sequence_last(conn, NULL);
- strncpy(subscr->imsi, imsi, GSM_IMSI_LENGTH-1);
- dbi_result_free(result);
- printf("DB: New Subscriber: ID %llu, IMSI %s\n", subscr->id, subscr->imsi);
- return subscr;
-}
-
-struct gsm_subscriber *db_get_subscriber(enum gsm_subscriber_field field, const char *id) {
- dbi_result result;
- const char *string;
- char *quoted;
- struct gsm_subscriber *subscr;
-
- switch (field) {
- case GSM_SUBSCRIBER_IMSI:
- dbi_conn_quote_string_copy(conn, id, &quoted);
- result = dbi_conn_queryf(conn,
- "SELECT * FROM Subscriber "
- "WHERE imsi = %s ",
- quoted
- );
- free(quoted);
- break;
- case GSM_SUBSCRIBER_TMSI:
- dbi_conn_quote_string_copy(conn, id, &quoted);
- result = dbi_conn_queryf(conn,
- "SELECT * FROM Subscriber "
- "WHERE tmsi = %s ",
- quoted
- );
- free(quoted);
- break;
- case GSM_SUBSCRIBER_EXTENSION:
- dbi_conn_quote_string_copy(conn, id, &quoted);
- result = dbi_conn_queryf(conn,
- "SELECT * FROM Subscriber "
- "WHERE extension = %s ",
- quoted
- );
- free(quoted);
- break;
- default:
- printf("DB: Unknown query selector for Subscriber.\n");
- return NULL;
- }
- if (result==NULL) {
- printf("DB: Failed to query Subscriber.\n");
- return NULL;
- }
- if (!dbi_result_next_row(result)) {
- printf("DB: Failed to find the Subscriber. '%u' '%s'\n",
- field, id);
- dbi_result_free(result);
- return NULL;
- }
-
- subscr = subscr_alloc();
- subscr->id = dbi_result_get_ulonglong(result, "id");
- string = dbi_result_get_string(result, "imsi");
- if (string)
- strncpy(subscr->imsi, string, GSM_IMSI_LENGTH);
-
- string = dbi_result_get_string(result, "tmsi");
- if (string)
- strncpy(subscr->tmsi, string, GSM_TMSI_LENGTH);
-
- string = dbi_result_get_string(result, "name");
- if (string)
- strncpy(subscr->name, string, GSM_NAME_LENGTH);
-
- string = dbi_result_get_string(result, "extension");
- if (string)
- strncpy(subscr->extension, string, GSM_EXTENSION_LENGTH);
-
- subscr->lac = dbi_result_get_uint(result, "lac");
- subscr->authorized = dbi_result_get_uint(result, "authorized");
- printf("DB: Found Subscriber: ID %llu, IMSI %s, NAME '%s', TMSI %s, EXTEN '%s', LAC %hu, AUTH %u\n",
- subscr->id, subscr->imsi, subscr->name, subscr->tmsi, subscr->extension,
- subscr->lac, subscr->authorized);
- dbi_result_free(result);
- return subscr;
-}
-
-int db_sync_subscriber(struct gsm_subscriber* subscriber) {
- dbi_result result;
- result = dbi_conn_queryf(conn,
- "UPDATE Subscriber "
- "SET updated = datetime('now'), "
- "tmsi = '%s', "
- "lac = %i, "
- "authorized = %i "
- "WHERE imsi = %s ",
- subscriber->tmsi, subscriber->lac, subscriber->authorized, subscriber->imsi
- );
-
- if (result==NULL) {
- printf("DB: Failed to update Subscriber (by IMSI).\n");
- return 1;
- }
- dbi_result_free(result);
- return 0;
-}
-
-int db_subscriber_alloc_tmsi(struct gsm_subscriber* subscriber) {
- dbi_result result=NULL;
- char* tmsi_quoted;
- for (;;) {
- sprintf(subscriber->tmsi, "%i", rand());
- dbi_conn_quote_string_copy(conn, subscriber->tmsi, &tmsi_quoted);
- result = dbi_conn_queryf(conn,
- "SELECT * FROM Subscriber "
- "WHERE tmsi = %s ",
- tmsi_quoted
- );
- free(tmsi_quoted);
- if (result==NULL) {
- printf("DB: Failed to query Subscriber while allocating new TMSI.\n");
- return 1;
- }
- if (dbi_result_get_numrows(result)){
- dbi_result_free(result);
- continue;
- }
- if (!dbi_result_next_row(result)) {
- dbi_result_free(result);
- printf("DB: Allocated TMSI %s for IMSI %s.\n", subscriber->tmsi, subscriber->imsi);
- return db_sync_subscriber(subscriber);
- }
- dbi_result_free(result);
- }
- return 0;
-}
-
-int db_subscriber_assoc_imei(struct gsm_subscriber* subscriber, char imei[GSM_IMEI_LENGTH]) {
- u_int64_t equipment_id, watch_id;
- dbi_result result;
-
- result = dbi_conn_queryf(conn,
- "INSERT OR IGNORE INTO Equipment "
- "(imei, created, updated) "
- "VALUES "
- "(%s, datetime('now'), datetime('now')) ",
- imei
- );
- if (result==NULL) {
- printf("DB: Failed to create Equipment by IMEI.\n");
- return 1;
- }
- equipment_id = 0;
- if (dbi_result_get_numrows_affected(result)) {
- equipment_id = dbi_conn_sequence_last(conn, NULL);
- }
- dbi_result_free(result);
- if (equipment_id) {
- printf("DB: New Equipment: ID %llu, IMEI %s\n", equipment_id, imei);
- }
- else {
- result = dbi_conn_queryf(conn,
- "SELECT id FROM Equipment "
- "WHERE imei = %s ",
- imei
- );
- if (result==NULL) {
- printf("DB: Failed to query Equipment by IMEI.\n");
- return 1;
- }
- if (!dbi_result_next_row(result)) {
- printf("DB: Failed to find the Equipment.\n");
- dbi_result_free(result);
- return 1;
- }
- equipment_id = dbi_result_get_ulonglong(result, "id");
- dbi_result_free(result);
- }
-
- result = dbi_conn_queryf(conn,
- "INSERT OR IGNORE INTO EquipmentWatch "
- "(subscriber_id, equipment_id, created, updated) "
- "VALUES "
- "(%llu, %llu, datetime('now'), datetime('now')) ",
- subscriber->id, equipment_id
- );
- if (result==NULL) {
- printf("DB: Failed to create EquipmentWatch.\n");
- return 1;
- }
- watch_id = 0;
- if (dbi_result_get_numrows_affected(result)) {
- watch_id = dbi_conn_sequence_last(conn, NULL);
- }
- dbi_result_free(result);
- if (watch_id) {
- printf("DB: New EquipmentWatch: ID %llu, IMSI %s, IMEI %s\n", equipment_id, subscriber->imsi, imei);
- }
- else {
- result = dbi_conn_queryf(conn,
- "UPDATE EquipmentWatch "
- "SET updated = datetime('now') "
- "WHERE subscriber_id = %llu AND equipment_id = %llu ",
- subscriber->id, equipment_id
- );
- if (result==NULL) {
- printf("DB: Failed to update EquipmentWatch.\n");
- return 1;
- }
- dbi_result_free(result);
- printf("DB: Updated EquipmentWatch: ID %llu, IMSI %s, IMEI %s\n", equipment_id, subscriber->imsi, imei);
- }
-
- return 0;
-}
-
-/* store an [unsent] SMS to the database */
-int db_sms_store(struct gsm_sms *sms)
-{
- dbi_result result;
- char *q_text;
-
- dbi_conn_quote_string_copy(conn, (char *)sms->text, &q_text);
- result = dbi_conn_queryf(conn,
- "INSERT INTO SMS "
- "(created,sender_id,receiver_id,header,text) VALUES "
- "(datetime('now'),%llu,%llu,%s,%s)",
- sms->sender->id,
- sms->receiver ? sms->receiver->id : 0,
- NULL, q_text);
- free(q_text);
-
- if (!result)
- return -EIO;
-
- dbi_result_free(result);
- return 0;
-}
-
-/* retrieve the next unsent SMS with ID >= min_id */
-struct gsm_sms *db_sms_get_unsent(int min_id)
-{
- dbi_result result;
- struct gsm_sms *sms = malloc(sizeof(*sms));
-
- if (!sms) {
- free(sms);
- return NULL;
- }
-
- result = dbi_conn_queryf(conn,
- "SELECT * FROM SMS "
- "WHERE id >= %llu ORDER BY id", min_id);
- if (!result) {
- free(sms);
- return NULL;
- }
-
- /* FIXME: fill gsm_sms from database */
-
- dbi_result_free(result);
- return sms;
-}
-
-/* mark a given SMS as read */
-int db_sms_mark_sent(struct gsm_sms *sms)
-{
- dbi_result result;
-
- result = dbi_conn_queryf(conn,
- "UPDATE SMS "
- "SET sent = datetime('now') "
- "WHERE id = %llu", sms->id);
- if (!result) {
- printf("DB: Failed to mark SMS %llu as sent.\n", sms->id);
- return 1;
- }
-
- dbi_result_free(result);
- return 0;
-}