add first sketch of a DB backend

This commit is contained in:
Jan Luebbe 2008-12-27 00:45:41 +00:00
parent 702d8707a9
commit 7398eb9847
3 changed files with 252 additions and 0 deletions

198
src/db.c Normal file
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#include "db.h"
#include <stdio.h>
#include <dbi/dbi.h>
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;
}

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src/db.h Normal file
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#include <stdint.h>
#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);

31
src/db_test.c Normal file
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#include "db.h"
#include <stdio.h>
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;
}