From 7398eb98478459d54a3516eec1697bde05c20ab0 Mon Sep 17 00:00:00 2001 From: Jan Luebbe Date: Sat, 27 Dec 2008 00:45:41 +0000 Subject: [PATCH] add first sketch of a DB backend --- src/db.c | 198 ++++++++++++++++++++++++++++++++++++++++++++++++++ src/db.h | 23 ++++++ src/db_test.c | 31 ++++++++ 3 files changed, 252 insertions(+) create mode 100644 src/db.c create mode 100644 src/db.h create mode 100644 src/db_test.c diff --git a/src/db.c b/src/db.c new file mode 100644 index 000000000..904281ae9 --- /dev/null +++ b/src/db.c @@ -0,0 +1,198 @@ +#include "db.h" + +#include +#include + +dbi_conn conn; + +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() { + dbi_initialize(NULL); + conn = dbi_conn_new("sqlite3"); + + 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 */ + dbi_conn_set_option(conn, "sqlite3_dbdir", "/tmp"); + dbi_conn_set_option(conn, "dbname", "hlr.sqlite3"); + + if (dbi_conn_connect(conn) < 0) { + return 1; + } + + return 0; +} + +int db_prepare() { + dbi_result result; + result = dbi_conn_query(conn, + "CREATE TABLE IF NOT EXISTS Subscriber (" + "id INTEGER PRIMARY KEY AUTOINCREMENT, " + "imsi INTEGER UNIQUE NOT NULL, " + "tmsi INTEGER UNIQUE, " + "extension TEXT UNIQUE, " + "lac INTEGER" + ")" + ); + if (result==NULL) { + printf("DB: Failed to create Subscriber table.\n"); + return 1; + } + dbi_result_free(result); + result = dbi_conn_query(conn, + "CREATE TABLE IF NOT EXISTS Equipment (" + "id INTEGER PRIMARY KEY AUTOINCREMENT, " + "imei INTEGER UNIQUE NOT NULL" + ")" + ); + if (result==NULL) { + printf("DB: Failed to create Equipment table.\n"); + return 1; + } + dbi_result_free(result); + return 0; +} + +int db_fini() { + dbi_conn_close(conn); + dbi_shutdown(); +} + +int db_insert_imei(uint64_t imei) { + dbi_result result; + result = dbi_conn_queryf(conn, + "INSERT OR IGNORE INTO Equipment " + "(imei) " + "VALUES " + "(%llu) ", + imei + ); + if (result==NULL) { + printf("DB: Failed to create Equipment by IMEI.\n"); + return 1; + } + dbi_result_free(result); + return 0; +} + +int db_insert_imsi(uint64_t imsi) { + dbi_result result; + result = dbi_conn_queryf(conn, + "INSERT OR IGNORE INTO Subscriber " + "(imsi) " + "VALUES " + "(%llu) ", + imsi + ); + if (result==NULL) { + printf("DB: Failed to create Subscriber by IMSI.\n"); + return 1; + } + dbi_result_free(result); + return 0; +} + +int db_imsi_set_tmsi(uint64_t imsi, uint64_t tmsi) { + if (db_insert_imsi(imsi)) { + return 1; + } + dbi_result result; + result = dbi_conn_queryf(conn, + "UPDATE Subscriber " + "SET tmsi = %llu " + "WHERE imsi = %llu ", + tmsi, imsi + ); + if (result==NULL) { + printf("DB: Failed to update Subscriber with TMSI by IMSI.\n"); + return 1; + } + dbi_result_free(result); + return 0; +} + +int db_imsi_set_lac(uint64_t imsi, uint16_t lac) { + if (db_insert_imsi(imsi)) { + return 1; + } + dbi_result result; + result = dbi_conn_queryf(conn, + "UPDATE Subscriber " + "SET lac = %u " + "WHERE imsi = %llu ", + lac, imsi + ); + if (result==NULL) { + printf("DB: Failed to update Subscriber with LAC by IMSI.\n"); + return 1; + } + dbi_result_free(result); + return 0; +} + +int db__parse_subscriber(dbi_result result, db_subscriber* subscriber) { + if (!dbi_result_first_row(result)) { + printf("DB: Failed to find Subscriber.\n"); + return 1; + } + subscriber->imsi = dbi_result_get_ulonglong(result, "imsi"); + subscriber->tmsi = dbi_result_get_ulonglong(result, "tmsi"); + // FIXME handle extension + subscriber->lac = dbi_result_get_uint(result, "lac"); + printf("DB: Subscriber: IMSI %llu, TMSI %llu, LAC %hu\n", subscriber->imsi, subscriber->tmsi, subscriber->lac); + return 0; +} + +int db_imsi_get_subscriber(uint64_t imsi, db_subscriber* subscriber) { + dbi_result result; + result = dbi_conn_queryf(conn, + "SELECT * FROM Subscriber " + "WHERE imsi = %llu ", + imsi + ); + if (result==NULL) { + printf("DB: Failed to find Subscriber by IMSI.\n"); + return 1; + } + if (db__parse_subscriber(result, subscriber)) { + printf("DB: Failed to parse Subscriber.\n"); + dbi_result_free(result); + return 1; + } + dbi_result_free(result); + return 0; +} + +int db_tmsi_get_subscriber(uint64_t tmsi, db_subscriber* subscriber) { + dbi_result result; + result = dbi_conn_queryf(conn, + "SELECT * FROM Subscriber " + "WHERE tmsi = %llu ", + tmsi + ); + if (result==NULL) { + printf("DB: Failed to find Subscriber by TMSI.\n"); + return 1; + } + if (db__parse_subscriber(result, subscriber)) { + printf("DB: Failed to parse Subscriber.\n"); + dbi_result_free(result); + return 1; + } + dbi_result_free(result); + return 0; +} + diff --git a/src/db.h b/src/db.h new file mode 100644 index 000000000..edf1655c6 --- /dev/null +++ b/src/db.h @@ -0,0 +1,23 @@ +#include + +#define NUMBER_LENGTH 32 + +typedef struct { + uint64_t imsi; + uint64_t tmsi; + char number[NUMBER_LENGTH]; + uint16_t lac; +} db_subscriber; + +int db_init(); +int db_prepare(); +int db_fini(); + +int db_insert_imei(uint64_t imei); + +int db_insert_imsi(uint64_t imsi); +int db_imsi_set_tmsi(uint64_t imsi, uint64_t tmsi); +int db_imsi_set_lac(uint64_t imsi, uint16_t lac); +int db_imsi_get_subscriber(uint64_t imsi, db_subscriber* subscriber); +int db_tmsi_get_subscriber(uint64_t tmsi, db_subscriber* subscriber); + diff --git a/src/db_test.c b/src/db_test.c new file mode 100644 index 000000000..82dde494c --- /dev/null +++ b/src/db_test.c @@ -0,0 +1,31 @@ +#include "db.h" + +#include + +int main() { + + if (db_init()) { + printf("DB: Failed to init database. Please check the option settings.\n"); + return 1; + } + printf("DB: Database initialized.\n"); + + if (db_prepare()) { + printf("DB: Failed to prepare database.\n"); + return 1; + } + printf("DB: Database prepared.\n"); + + db_insert_imsi(3243245432351LLU); + db_insert_imsi(3243245432352LLU); + db_imsi_set_tmsi(3243245432345LLU, 99999999LLU); + db_imsi_set_lac(3243245432345LLU, 42); + + db_subscriber alice; + db_imsi_get_subscriber(3243245432345LLU, &alice); + db_tmsi_get_subscriber(99999999LLU, &alice); + + db_fini(); + + return 0; +}