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-rw-r--r--openbsc/src/db.c464
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diff --git a/openbsc/src/db.c b/openbsc/src/db.c
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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;
+}