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authorHarald Welte <laforge@gnumonks.org>2016-05-03 18:49:27 +0200
committerHarald Welte <laforge@gnumonks.org>2016-05-03 18:49:27 +0200
commit3596f92fadfe55e6262098727fffdb1edfb91a6d (patch)
treef1a037ddf546c5eca95e36aafbfcb6bdd9ef676a /osmo-gsup-hlr/src/db_hlr.c
parentb565a56607e7006bf2ce843611bc3d32c8c651dc (diff)
Major update; Code now supports SAI, LU and ISD transactions
We also introduce a 'gsup_router' which enables us to route a transaction to a given VLR. It works based on the SERIAL attribute communicated at time of the IPA multiplex setup as part of the CCM sub-protocol.
Diffstat (limited to 'osmo-gsup-hlr/src/db_hlr.c')
-rw-r--r--osmo-gsup-hlr/src/db_hlr.c136
1 files changed, 136 insertions, 0 deletions
diff --git a/osmo-gsup-hlr/src/db_hlr.c b/osmo-gsup-hlr/src/db_hlr.c
new file mode 100644
index 0000000..5d22717
--- /dev/null
+++ b/osmo-gsup-hlr/src/db_hlr.c
@@ -0,0 +1,136 @@
+/* (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 <string.h>
+
+#include <osmocom/core/utils.h>
+#include <osmocom/crypt/auth.h>
+
+#include <sqlite3.h>
+
+#include "logging.h"
+#include "db.h"
+
+#define LOGHLR(imsi, level, fmt, args ...) LOGP(DAUC, level, "%s: " fmt, imsi, ## args)
+
+#define SL3_TXT(x, stmt, idx) do { \
+ const char *_txt = (const char *) sqlite3_column_text(stmt, idx); \
+ if (_txt) \
+ strncpy(x, _txt, sizeof(x)); \
+ x[sizeof(x)-1] = '\0'; \
+ } while (0)
+
+int db_subscr_get(struct db_context *dbc, const char *imsi,
+ struct hlr_subscriber *subscr)
+{
+ sqlite3_stmt *stmt = dbc->stmt[SEL_BY_IMSI];
+ int rc, ret = 0;
+
+ rc = sqlite3_bind_text(stmt, 1, imsi, -1, SQLITE_STATIC);
+ if (rc != SQLITE_OK) {
+ LOGHLR(imsi, LOGL_ERROR, "Error binding IMSI: %d\n", rc);
+ return -1;
+ }
+
+ /* execute the statement */
+ rc = sqlite3_step(stmt);
+ if (rc != SQLITE_ROW) {
+ LOGHLR(imsi, LOGL_ERROR, "Error executing SQL: %d\n", rc);
+ ret = -2;
+ goto out;
+ }
+
+ /* obtain the various columns */
+ subscr->id = sqlite3_column_int64(stmt, 0);
+ SL3_TXT(subscr->imsi, stmt, 1);
+ SL3_TXT(subscr->msisdn, stmt, 2);
+ SL3_TXT(subscr->vlr_number, stmt, 3);
+ SL3_TXT(subscr->sgsn_number, stmt, 4);
+ SL3_TXT(subscr->sgsn_address, stmt, 5);
+ subscr->periodic_lu_timer = sqlite3_column_int(stmt, 6);
+ subscr->periodic_rau_tau_timer = sqlite3_column_int(stmt, 7);
+ subscr->nam_cs = sqlite3_column_int(stmt, 8);
+ subscr->nam_ps = sqlite3_column_int(stmt, 9);
+ subscr->lmsi = sqlite3_column_int(stmt, 10);
+ subscr->ms_purged_cs = sqlite3_column_int(stmt, 11);
+ subscr->ms_purged_ps = sqlite3_column_int(stmt, 12);
+
+out:
+ /* remove bindings and reset statement to be re-executed */
+ rc = sqlite3_clear_bindings(stmt);
+ if (rc != SQLITE_OK) {
+ LOGP(DAUC, LOGL_ERROR, "Error clerearing bindings: %d\n", rc);
+ }
+ rc = sqlite3_reset(stmt);
+ if (rc != SQLITE_OK) {
+ LOGP(DAUC, LOGL_ERROR, "Error in sqlite3_reset: %d\n", rc);
+ }
+
+ return ret;
+}
+
+int db_subscr_lu(struct db_context *dbc,
+ const struct hlr_subscriber *subscr,
+ const char *vlr_or_sgsn_number, bool lu_is_ps)
+{
+ sqlite3_stmt *stmt = dbc->stmt[UPD_VLR_BY_ID];
+ const char *txt;
+ int rc, ret = 0;
+
+ if (lu_is_ps) {
+ stmt = dbc->stmt[UPD_SGSN_BY_ID];
+ txt = subscr->sgsn_number;
+ } else {
+ stmt = dbc->stmt[UPD_VLR_BY_ID];
+ txt = subscr->vlr_number;
+ }
+
+ rc = sqlite3_bind_int64(stmt, 1, subscr->id);
+ if (rc != SQLITE_OK) {
+ LOGP(DAUC, LOGL_ERROR, "Error binding ID: %d\n", rc);
+ return -1;
+ }
+
+ rc = sqlite3_bind_text(stmt, 2, txt, -1, SQLITE_STATIC);
+ if (rc != SQLITE_OK) {
+ LOGP(DAUC, LOGL_ERROR, "Error binding VLR/SGSN Number: %d\n", rc);
+ ret = -2;
+ goto out;
+ }
+
+ /* execute the statement */
+ rc = sqlite3_step(stmt);
+ if (rc != SQLITE_DONE) {
+ LOGP(DAUC, LOGL_ERROR, "Error updating SQN: %d\n", rc);
+ ret = -3;
+ goto out;
+ }
+out:
+ /* remove bindings and reset statement to be re-executed */
+ rc = sqlite3_clear_bindings(stmt);
+ if (rc != SQLITE_OK) {
+ LOGP(DAUC, LOGL_ERROR, "Error clerearing bindings: %d\n", rc);
+ }
+ rc = sqlite3_reset(stmt);
+ if (rc != SQLITE_OK) {
+ LOGP(DAUC, LOGL_ERROR, "Error in sqlite3_reset: %d\n", rc);
+ }
+
+ return ret;
+}