| /* (C) 2015 by Harald Welte <laforge@gnumonks.org> |
| * |
| * All Rights Reserved |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU Affero General Public License as published by |
| * the Free Software Foundation; either version 3 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 Affero General Public License for more details. |
| * |
| * You should have received a copy of the GNU Affero General Public License |
| * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| * |
| */ |
| |
| #include <osmocom/core/utils.h> |
| |
| #include <stdbool.h> |
| #include <sqlite3.h> |
| |
| #include "logging.h" |
| #include "db.h" |
| |
| static const char *stmt_sql[] = { |
| [SEL_BY_IMSI] = "SELECT id,imsi,msisdn,vlr_number,sgsn_number,sgsn_address,periodic_lu_tmr,periodic_rau_tau_tmr,nam_cs,nam_ps,lmsi,ms_purged_cs,ms_purged_ps FROM subscriber WHERE imsi = ?", |
| [UPD_VLR_BY_ID] = "UPDATE subscriber SET vlr_number = ? WHERE id = ?", |
| [UPD_SGSN_BY_ID] = "UPDATE subscriber SET sgsn_number = ? WHERE id = ?", |
| [AUC_BY_IMSI] = "SELECT id, algo_id_2g, ki, algo_id_3g, k, op, opc, sqn, ind_bitlen FROM subscriber LEFT JOIN auc_2g ON auc_2g.subscriber_id = subscriber.id LEFT JOIN auc_3g ON auc_3g.subscriber_id = subscriber.id WHERE imsi = ?", |
| [AUC_UPD_SQN] = "UPDATE auc_3g SET sqn = ? WHERE subscriber_id = ?", |
| [UPD_PURGE_CS_BY_IMSI] = "UPDATE subscriber SET ms_purged_cs=1 WHERE imsi = ?", |
| [UPD_PURGE_PS_BY_IMSI] = "UPDATE subscriber SET ms_purged_ps=1 WHERE imsi = ?", |
| [SET_NAM_PS_BY_IMSI] = "UPDATE subscriber SET nam_ps=1 WHERE imsi = ?", |
| [UNSET_NAM_PS_BY_IMSI] = "UPDATE subscriber SET nam_ps=0 WHERE imsi = ?", |
| }; |
| |
| static void sql3_error_log_cb(void *arg, int err_code, const char *msg) |
| { |
| LOGP(DDB, LOGL_ERROR, "(%d) %s\n", err_code, msg); |
| } |
| |
| static void sql3_sql_log_cb(void *arg, sqlite3 *s3, const char *stmt, int type) |
| { |
| switch (type) { |
| case 0: |
| LOGP(DDB, LOGL_DEBUG, "Opened database\n"); |
| break; |
| case 1: |
| LOGP(DDB, LOGL_DEBUG, "%s\n", stmt); |
| break; |
| case 2: |
| LOGP(DDB, LOGL_DEBUG, "Closed database\n"); |
| break; |
| default: |
| LOGP(DDB, LOGL_DEBUG, "Unknown %d\n", type); |
| break; |
| } |
| } |
| |
| /* remove bindings and reset statement to be re-executed */ |
| bool db_remove_reset(sqlite3_stmt *stmt) |
| { |
| int rc = sqlite3_clear_bindings(stmt); |
| if (rc != SQLITE_OK) { |
| LOGP(DDB, LOGL_ERROR, "Error clerearing bindings: %d\n", rc); |
| return false; |
| } |
| |
| rc = sqlite3_reset(stmt); |
| if (rc != SQLITE_OK) { |
| LOGP(DDB, LOGL_ERROR, "Error in sqlite3_reset: %d\n", rc); |
| return false; |
| } |
| return true; |
| } |
| |
| /* bind IMSI and do proper cleanup in case of failure */ |
| bool db_bind_imsi(sqlite3_stmt *stmt, const char *imsi) |
| { |
| int rc = sqlite3_bind_text(stmt, 1, imsi, -1, SQLITE_STATIC); |
| if (rc != SQLITE_OK) { |
| LOGP(DDB, LOGL_ERROR, "Error binding IMSI %s: %d\n", imsi, rc); |
| db_remove_reset(stmt); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| void db_close(struct db_context *dbc) |
| { |
| unsigned int i; |
| |
| for (i = 0; i < ARRAY_SIZE(dbc->stmt); i++) { |
| /* it is ok to call finalize on NULL */ |
| sqlite3_finalize(dbc->stmt[i]); |
| } |
| sqlite3_close(dbc->db); |
| talloc_free(dbc); |
| } |
| |
| struct db_context *db_open(void *ctx, const char *fname) |
| { |
| struct db_context *dbc = talloc_zero(ctx, struct db_context); |
| unsigned int i; |
| int rc; |
| |
| LOGP(DDB, LOGL_NOTICE, "using database: %s\n", fname); |
| LOGP(DDB, LOGL_INFO, "Compiled against SQLite3 lib version %s\n", SQLITE_VERSION); |
| LOGP(DDB, LOGL_INFO, "Running with SQLite3 lib version %s\n", sqlite3_libversion()); |
| |
| dbc->fname = talloc_strdup(dbc, fname); |
| |
| for (i = 0; i < 0xfffff; i++) { |
| const char *o = sqlite3_compileoption_get(i); |
| if (!o) |
| break; |
| LOGP(DDB, LOGL_DEBUG, "SQlite3 compiled with '%s'\n", o); |
| } |
| |
| rc = sqlite3_config(SQLITE_CONFIG_LOG, sql3_error_log_cb, NULL); |
| if (rc != SQLITE_OK) |
| LOGP(DDB, LOGL_NOTICE, "Unable to set SQlite3 error log callback\n"); |
| |
| rc = sqlite3_config(SQLITE_CONFIG_SQLLOG, sql3_sql_log_cb, NULL); |
| if (rc != SQLITE_OK) |
| LOGP(DDB, LOGL_NOTICE, "Unable to set SQlite3 SQL statement log callback\n"); |
| |
| rc = sqlite3_open(dbc->fname, &dbc->db); |
| if (rc != SQLITE_OK) { |
| LOGP(DDB, LOGL_ERROR, "Unable to open DB; rc = %d\n", rc); |
| talloc_free(dbc); |
| return NULL; |
| } |
| |
| /* enable extended result codes */ |
| rc = sqlite3_extended_result_codes(dbc->db, 1); |
| if (rc != SQLITE_OK) |
| LOGP(DDB, LOGL_ERROR, "Unable to enable SQlite3 extended result codes\n"); |
| |
| char *err_msg; |
| rc = sqlite3_exec(dbc->db, "PRAGMA journal_mode=WAL; PRAGMA synchonous = NORMAL;", 0, 0, &err_msg); |
| if (rc != SQLITE_OK) |
| LOGP(DDB, LOGL_ERROR, "Unable to set Write-Ahead Logging: %s\n", |
| err_msg); |
| |
| /* prepare all SQL statements */ |
| for (i = 0; i < ARRAY_SIZE(dbc->stmt); i++) { |
| rc = sqlite3_prepare_v2(dbc->db, stmt_sql[i], -1, |
| &dbc->stmt[i], NULL); |
| if (rc != SQLITE_OK) { |
| LOGP(DDB, LOGL_ERROR, "Unable to prepare SQL statement '%s'\n", stmt_sql[i]); |
| goto out_free; |
| } |
| } |
| |
| return dbc; |
| out_free: |
| db_close(dbc); |
| return NULL; |
| } |