Add DB storage for enabling / disabling arbitrary RAT types.

So far we have only GERAN-A and UTRAN-Iu, but to be future compatible,
implement an arbitrary length list of RAT types: add DB table subscriber_rat.

Backwards compatibility: if there is no entry in subscriber_rat, all RAT types
shall be allowed. As soon as there is an entry, it can either be false to
forbid a RAT or true to still allow a RAT type.

Depends: I93850710ab55a605bf61b95063a69682a2899bb1 (libosmocore)
Change-Id: I3e399ca8a85421f77a9a15e608413d1507722955

9 files changed, 283 insertions, 6 deletions

diff --git a/include/osmocom/hlr/db.h b/include/osmocom/hlr/db.h
index 1f1bacb..5fbc846 100644
--- a/include/osmocom/hlr/db.h
+++ b/include/osmocom/hlr/db.h
@@ -5,6 +5,7 @@
 
 #include <osmocom/gsupclient/gsup_peer_id.h>
 #include <osmocom/gsm/gsup.h>
+#include <osmocom/gsm/gsm_utils.h>
 
 struct hlr;
 
@@ -37,6 +38,8 @@ enum stmt_idx {
 	DB_STMT_IND_ADD,
 	DB_STMT_IND_SELECT,
 	DB_STMT_IND_DEL,
+	DB_STMT_UPD_RAT_FLAG,
+	DB_STMT_RAT_BY_ID,
 	_NUM_DB_STMT
 };
 
@@ -107,8 +110,13 @@ struct hlr_subscriber {
 	/* talloc'd IPA unit name */
 	struct osmo_ipa_name	vlr_via_proxy;
 	struct osmo_ipa_name	sgsn_via_proxy;
+	bool		rat_types[OSMO_RAT_COUNT];
 };
 
+static const struct hlr_subscriber hlr_subscriber_empty = {
+		.rat_types = { true, true, true },
+	};
+
 /* A format string for use with strptime(3). This format string is
  * used to parse the last_lu_seen column stored in the HLR database.
  * See https://sqlite.org/lang_datefunc.html, function datetime(). */
@@ -170,6 +178,10 @@ int db_subscr_purge(struct db_context *dbc, const char *by_imsi,
 int db_ind(struct db_context *dbc, const struct osmo_gsup_peer_id *vlr, unsigned int *ind);
 int db_ind_del(struct db_context *dbc, const struct osmo_gsup_peer_id *vlr);
 
+int db_subscr_set_rat_type_flag(struct db_context *dbc, int64_t subscr_id, enum osmo_rat_type rat, bool allowed);
+int db_subscr_get_rat_types(struct db_context *dbc, struct hlr_subscriber *subscr);
+int hlr_subscr_rat_flag(struct hlr *hlr, struct hlr_subscriber *subscr, enum osmo_rat_type rat, bool allowed);
+
 /*! Call sqlite3_column_text() and copy result to a char[].
  * \param[out] buf  A char[] used as sizeof() arg(!) and osmo_strlcpy() target.
  * \param[in] stmt  An sqlite3_stmt*.
diff --git a/sql/hlr.sql b/sql/hlr.sql
index e855a6c..fd71aef 100644
--- a/sql/hlr.sql
+++ b/sql/hlr.sql
@@ -87,8 +87,18 @@ CREATE TABLE ind (
 	UNIQUE (vlr)
 );
 
+-- Optional: add subscriber entries to allow or disallow specific RATs (2G or 3G or ...).
+-- If a subscriber has no entry, that means that all RATs are allowed (backwards compat).
+CREATE TABLE subscriber_rat (
+	subscriber_id	INTEGER,		-- subscriber.id
+	rat		TEXT CHECK(rat in ('GERAN-A', 'UTRAN-Iu')) NOT NULL,	-- Radio Access Technology, see enum ran_type
+	allowed		BOOLEAN CHECK(allowed in (0, 1)) NOT NULL DEFAULT 0,
+	UNIQUE (subscriber_id, rat)
+);
+
 CREATE UNIQUE INDEX idx_subscr_imsi ON subscriber (imsi);
+CREATE UNIQUE INDEX idx_subscr_rat_flag ON subscriber_rat (subscriber_id, rat);
 
 -- Set HLR database schema version number
 -- Note: This constant is currently duplicated in src/db.c and must be kept in sync!
-PRAGMA user_version = 6;
+PRAGMA user_version = 7;
diff --git a/sql/upgrade_v2_to_v3.sql b/sql/upgrade_v2_to_v3.sql
new file mode 100644
index 0000000..7d475c1
--- /dev/null
+++ b/sql/upgrade_v2_to_v3.sql
@@ -0,0 +1,8 @@
+
+CREATE TABLE subscriber_rat (
+	subscriber_id	INTEGER,		-- subscriber.id
+	rat		TEXT CHECK(rat in ('GERAN-A', 'UTRAN-Iu')) NOT NULL,	-- Radio Access Technology, see enum ran_type
+	allowed		BOOLEAN NOT NULL DEFAULT 0,
+);
+
+PRAGMA user_version = 3;
diff --git a/src/db.c b/src/db.c
index c265ffa..fa868ea 100644
--- a/src/db.c
+++ b/src/db.c
@@ -30,7 +30,7 @@
 #include "db_bootstrap.h"
 
 /* This constant is currently duplicated in sql/hlr.sql and must be kept in sync! */
-#define CURRENT_SCHEMA_VERSION	6
+#define CURRENT_SCHEMA_VERSION	7
 
 #define SEL_COLUMNS \
 	"id," \
@@ -90,6 +90,12 @@ static const char *stmt_sql[] = {
 	[DB_STMT_IND_ADD] = "INSERT INTO ind (vlr) VALUES ($vlr)",
 	[DB_STMT_IND_SELECT] = "SELECT ind FROM ind WHERE vlr = $vlr",
 	[DB_STMT_IND_DEL] = "DELETE FROM ind WHERE vlr = $vlr",
+	[DB_STMT_UPD_RAT_FLAG] = "INSERT OR REPLACE INTO subscriber_rat (subscriber_id, rat, allowed)"
+		" VALUES ($subscriber_id, $rat, $allowed)",
+	[DB_STMT_RAT_BY_ID] =
+		"SELECT rat, allowed"
+		" FROM subscriber_rat"
+		" WHERE subscriber_id = $subscriber_id",
 };
 
 static void sql3_error_log_cb(void *arg, int err_code, const char *msg)
@@ -507,6 +513,30 @@ static int db_upgrade_v6(struct db_context *dbc)
 	return rc;
 }
 
+static int db_upgrade_v7(struct db_context *dbc)
+{
+	int rc;
+	const char *statements[] = {
+		"-- Optional: add subscriber entries to allow or disallow specific RATs (2G or 3G or ...).\n"
+		"-- If a subscriber has no entry, that means that all RATs are allowed (backwards compat).\n"
+		"CREATE TABLE subscriber_rat (\n"
+		"	subscriber_id	INTEGER,		-- subscriber.id\n"
+		"	rat		TEXT CHECK(rat in ('GERAN-A', 'UTRAN-Iu')) NOT NULL,	-- Radio Access Technology, see enum ran_type\n"
+		"	allowed		BOOLEAN CHECK(allowed in (0, 1)) NOT NULL DEFAULT 0,\n"
+		"	UNIQUE (subscriber_id, rat)\n"
+		")",
+		"CREATE UNIQUE INDEX idx_subscr_rat_flag ON subscriber_rat (subscriber_id, rat)",
+		"PRAGMA user_version = 7",
+	};
+
+	rc = db_run_statements(dbc, statements, ARRAY_SIZE(statements));
+	if (rc != SQLITE_DONE) {
+		LOGP(DDB, LOGL_ERROR, "Unable to update HLR database schema to version 7\n");
+		return rc;
+	}
+	return rc;
+}
+
 typedef int (*db_upgrade_func_t)(struct db_context *dbc);
 static db_upgrade_func_t db_upgrade_path[] = {
 	db_upgrade_v1,
@@ -515,6 +545,7 @@ static db_upgrade_func_t db_upgrade_path[] = {
 	db_upgrade_v4,
 	db_upgrade_v5,
 	db_upgrade_v6,
+	db_upgrade_v7,
 };
 
 static int db_get_user_version(struct db_context *dbc)
@@ -643,9 +674,9 @@ struct db_context *db_open(void *ctx, const char *fname, bool enable_sqlite_logg
 		if (version < CURRENT_SCHEMA_VERSION) {
 			LOGP(DDB, LOGL_NOTICE, "HLR DB schema version %d is outdated\n", version);
 			if (!allow_upgrade) {
-				LOGP(DDB, LOGL_ERROR, "Not upgrading HLR database to schema version %d; "
+				LOGP(DDB, LOGL_ERROR, "Not upgrading HLR database from schema version %d to %d; "
 				     "use the --db-upgrade option to allow HLR database upgrades\n",
-				     CURRENT_SCHEMA_VERSION);
+				     version, CURRENT_SCHEMA_VERSION);
 			}
 		} else
 			LOGP(DDB, LOGL_ERROR, "HLR DB schema version %d is unknown\n", version);
diff --git a/src/db_hlr.c b/src/db_hlr.c
index b13763a..ee53a39 100644
--- a/src/db_hlr.c
+++ b/src/db_hlr.c
@@ -483,7 +483,7 @@ static int db_sel(struct db_context *dbc, sqlite3_stmt *stmt, struct hlr_subscri
 	if (!subscr)
 		goto out;
 
-	*subscr = (struct hlr_subscriber){};
+	*subscr = hlr_subscriber_empty;
 
 	/* obtain the various columns */
 	subscr->id = sqlite3_column_int64(stmt, 0);
@@ -511,6 +511,9 @@ static int db_sel(struct db_context *dbc, sqlite3_stmt *stmt, struct hlr_subscri
 out:
 	db_remove_reset(stmt);
 
+	if (ret == 0)
+		db_subscr_get_rat_types(dbc, subscr);
+
 	switch (ret) {
 	case 0:
 		*err = NULL;
@@ -987,3 +990,119 @@ int db_ind_del(struct db_context *dbc, const struct osmo_gsup_peer_id *vlr)
 {
 	return _db_ind(dbc, vlr, NULL, true);
 }
+
+int db_subscr_set_rat_type_flag(struct db_context *dbc, int64_t subscr_id, enum osmo_rat_type rat, bool allowed)
+{
+	int rc;
+	int ret = 0;
+	sqlite3_stmt *stmt = dbc->stmt[DB_STMT_UPD_RAT_FLAG];
+
+	if (!db_bind_int64(stmt, "$subscriber_id", subscr_id))
+		return -EIO;
+
+	OSMO_ASSERT(rat >= 0 && rat < OSMO_RAT_COUNT);
+	if (!db_bind_text(stmt, "$rat", osmo_rat_type_name(rat)))
+		return -EIO;
+
+	if (!db_bind_int(stmt, "$allowed", allowed ? 1 : 0))
+		return -EIO;
+
+	/* execute the statement */
+	rc = sqlite3_step(stmt);
+	if (rc != SQLITE_DONE) {
+		LOGP(DDB, LOGL_ERROR, "%s %s: SQL error: %s\n",
+		     allowed ? "enable" : "disable", osmo_rat_type_name(rat),
+		     sqlite3_errmsg(dbc->db));
+		ret = -EIO;
+		goto out;
+	}
+
+	/* verify execution result */
+	rc = sqlite3_changes(dbc->db);
+	if (!rc) {
+		LOGP(DDB, LOGL_ERROR, "Cannot %s %s: no such subscriber: ID=%" PRIu64 "\n",
+		     allowed ? "enable" : "disable", osmo_rat_type_name(rat),
+		     subscr_id);
+		ret = -ENOENT;
+		goto out;
+	} else if (rc != 1) {
+		LOGP(DDB, LOGL_ERROR, "%s %s: SQL modified %d rows (expected 1)\n",
+		     allowed ? "enable" : "disable", osmo_rat_type_name(rat),
+		     rc);
+		ret = -EIO;
+	}
+
+out:
+	db_remove_reset(stmt);
+	return ret;
+}
+
+int db_subscr_get_rat_types(struct db_context *dbc, struct hlr_subscriber *subscr)
+{
+	int rc;
+	int ret = 0;
+	int i;
+	sqlite3_stmt *stmt = dbc->stmt[DB_STMT_RAT_BY_ID];
+
+	if (!db_bind_int64(stmt, "$subscriber_id", subscr->id))
+		return -EIO;
+
+	for (i = 0; i < OSMO_RAT_COUNT; i++)
+		subscr->rat_types[i] = true;
+
+	/* execute the statement */
+	while (1) {
+		enum osmo_rat_type rat;
+		bool allowed;
+
+		rc = sqlite3_step(stmt);
+
+		if (rc == SQLITE_DONE)
+			break;
+		if (rc != SQLITE_ROW)
+			return -rc;
+
+		rc = get_string_value(osmo_rat_type_names, (const char*)sqlite3_column_text(stmt, 0));
+		if (rc == -EINVAL) {
+			ret = -EINVAL;
+			goto out;
+		}
+		if (rc <= 0 || rc >= OSMO_RAT_COUNT) {
+			ret = -EINVAL;
+			goto out;
+		}
+		rat = rc;
+
+		allowed = sqlite3_column_int(stmt, 1);
+
+		subscr->rat_types[rat] = allowed;
+		LOGP(DAUC, LOGL_DEBUG, "db: imsi='%s' %s %s\n",
+		     subscr->imsi, osmo_rat_type_name(rat), allowed ? "allowed" : "forbidden");
+	}
+
+out:
+	db_remove_reset(stmt);
+	return ret;
+}
+
+int hlr_subscr_rat_flag(struct hlr *hlr, struct hlr_subscriber *subscr, enum osmo_rat_type rat, bool allowed)
+{
+	int rc;
+	OSMO_ASSERT(rat >= 0 && rat < OSMO_RAT_COUNT);
+
+	db_subscr_get_rat_types(hlr->dbc, subscr);
+
+	if (subscr->rat_types[rat] == allowed) {
+		LOGHLR(subscr->imsi, LOGL_DEBUG, "Already has the requested value when asked to %s %s\n",
+		       allowed ? "enable" : "disable", osmo_rat_type_name(rat));
+		return -ENOEXEC;
+	}
+
+	rc = db_subscr_set_rat_type_flag(hlr->dbc, subscr->id, rat, allowed);
+	if (rc)
+		return rc > 0? -rc : rc;
+
+	/* FIXME: If we're disabling, send message to VLR to detach subscriber */
+
+	return 0;
+}
diff --git a/src/hlr_vty_subscr.c b/src/hlr_vty_subscr.c
index dfbf72f..15e26ad 100644
--- a/src/hlr_vty_subscr.c
+++ b/src/hlr_vty_subscr.c
@@ -27,6 +27,7 @@
 #include <osmocom/vty/vty.h>
 #include <osmocom/vty/command.h>
 #include <osmocom/core/utils.h>
+#include <osmocom/gsm/gsm_utils.h>
 
 #include <osmocom/hlr/hlr.h>
 #include <osmocom/hlr/db.h>
@@ -76,6 +77,7 @@ static void dump_last_lu_seen(struct vty *vty, const char *domain_label, time_t
 static void subscr_dump_full_vty(struct vty *vty, struct hlr_subscriber *subscr)
 {
 	int rc;
+	int i;
 	struct osmo_sub_auth_data aud2g;
 	struct osmo_sub_auth_data aud3g;
 
@@ -114,6 +116,10 @@ static void subscr_dump_full_vty(struct vty *vty, struct hlr_subscriber *subscr)
 		vty_out(vty, "    PS purged%s", VTY_NEWLINE);
 	dump_last_lu_seen(vty, "CS", subscr->last_lu_seen);
 	dump_last_lu_seen(vty, "PS", subscr->last_lu_seen_ps);
+	for (i = OSMO_RAT_UNKNOWN + 1; i < ARRAY_SIZE(subscr->rat_types); i++) {
+		vty_out(vty, "    %s: %s%s", osmo_rat_type_name(i), subscr->rat_types[i] ? "allowed" : "forbidden",
+			VTY_NEWLINE);
+	}
 
 	if (!*subscr->imsi)
 		return;
@@ -630,6 +636,45 @@ DEFUN(subscriber_nam,
 }
 
 
+DEFUN(subscriber_rat,
+      subscriber_rat_cmd,
+      SUBSCR_UPDATE "rat (geran-a|utran-iu) (allowed|forbidden)",
+      SUBSCR_UPDATE_HELP
+      "Allow or forbid specific Radio Access Types\n"
+      "Set access to GERAN-A\n"
+      "Set access to UTRAN-Iu\n"
+      "Allow access\n"
+      "Forbid access\n")
+{
+	struct hlr_subscriber subscr;
+	const char *id_type = argv[0];
+	const char *id = argv[1];
+	const char *rat_str = argv[2];
+	const char *allowed_forbidden = argv[3];
+	enum osmo_rat_type rat;
+	bool allowed;
+	int rc;
+
+	if (strcmp(rat_str, "geran-a") == 0)
+		rat = OSMO_RAT_GERAN_A;
+	else if (strcmp(rat_str, "utran-iu") == 0)
+		rat = OSMO_RAT_UTRAN_IU;
+
+	allowed = (strcmp(allowed_forbidden, "allowed") == 0);
+
+	if (get_subscr_by_argv(vty, id_type, id, &subscr))
+		return CMD_WARNING;
+
+	rc = hlr_subscr_rat_flag(g_hlr, &subscr, rat, allowed);
+
+	if (rc && rc != -ENOEXEC) {
+		vty_out(vty, "%% Error: cannot set %s to %s%s",
+			osmo_rat_type_name(rat), allowed ? "allowed" : "forbidden", VTY_NEWLINE);
+		return CMD_WARNING;
+	}
+	return CMD_SUCCESS;
+}
+
 void hlr_vty_subscriber_init(void)
 {
 	install_element_ve(&subscriber_show_cmd);
@@ -643,4 +688,5 @@ void hlr_vty_subscriber_init(void)
 	install_element(ENABLE_NODE, &subscriber_aud3g_cmd);
 	install_element(ENABLE_NODE, &subscriber_imei_cmd);
 	install_element(ENABLE_NODE, &subscriber_nam_cmd);
+	install_element(ENABLE_NODE, &subscriber_rat_cmd);
 }
diff --git a/src/lu_fsm.c b/src/lu_fsm.c
index af3bed3..f5154c2 100644
--- a/src/lu_fsm.c
+++ b/src/lu_fsm.c
@@ -108,6 +108,8 @@ static void lu_start(struct osmo_gsup_req *update_location_req)
 {
 	struct osmo_fsm_inst *fi;
 	struct lu *lu;
+	bool any_rat_allowed;
+	int i;
 
 	OSMO_ASSERT(update_location_req);
 	OSMO_ASSERT(update_location_req->gsup.message_type == OSMO_GSUP_MSGT_UPDATE_LOCATION_REQUEST);
@@ -151,6 +153,28 @@ static void lu_start(struct osmo_gsup_req *update_location_req)
 		return;
 	}
 
+	/* Check if any available RAT type is allowed. See 3GPP TS 29.010 3.2 'Routeing area updating' and 3.8 'Location
+	 * update' for the "No Suitable cells in location area" error code. */
+	any_rat_allowed = false;
+	for (i = 0; i < update_location_req->gsup.supported_rat_types_len; i++) {
+		enum osmo_rat_type rat = update_location_req->gsup.supported_rat_types[i];
+		if (rat <= 0 || rat >= OSMO_RAT_COUNT) {
+			lu_failure(lu, GMM_CAUSE_COND_IE_ERR, "Invalid RAT type in GSUP request: %s",
+				   osmo_rat_type_name(rat));
+			return;
+		}
+		if (lu->subscr.rat_types[rat]) {
+			any_rat_allowed = true;
+			LOG_LU(lu, LOGL_DEBUG, "subscriber allowed on %s\n", osmo_rat_type_name(rat));
+		} else {
+			LOG_LU(lu, LOGL_DEBUG, "subscriber not allowed on %s\n", osmo_rat_type_name(rat));
+		}
+	}
+	if (!any_rat_allowed && update_location_req->gsup.supported_rat_types_len > 0) {
+		lu_failure(lu, GMM_CAUSE_NO_SUIT_CELL_IN_LA, "subscriber not allowed on any available RAT type");
+		return;
+	}
+
 	/* TODO: Set subscriber tracing = deactive in VLR/SGSN */
 
 #if 0
diff --git a/tests/db_upgrade/create_subscribers.vty b/tests/db_upgrade/create_subscribers.vty
index 30eeba6..0edd22e 100644
--- a/tests/db_upgrade/create_subscribers.vty
+++ b/tests/db_upgrade/create_subscribers.vty
@@ -4,6 +4,9 @@ OsmoHLR# subscriber imsi 123456789012345 create
     ID: 1
     IMSI: 123456789012345
     MSISDN: none
+    GERAN-A: allowed
+    UTRAN-Iu: allowed
+    EUTRAN-SGs: allowed
 OsmoHLR# subscriber imsi 123456789012345 update msisdn 098765432109876
 % Updated subscriber IMSI='123456789012345' to MSISDN='098765432109876'
 OsmoHLR# subscriber imsi 123456789012345 update aud2g comp128v1 ki BeefedCafeFaceAcedAddedDecadeFee
@@ -13,11 +16,17 @@ OsmoHLR# subscriber imsi 111111111 create
     ID: 2
     IMSI: 111111111
     MSISDN: none
+    GERAN-A: allowed
+    UTRAN-Iu: allowed
+    EUTRAN-SGs: allowed
 OsmoHLR# subscriber imsi 222222222 create
 % Created subscriber 222222222
     ID: 3
     IMSI: 222222222
     MSISDN: none
+    GERAN-A: allowed
+    UTRAN-Iu: allowed
+    EUTRAN-SGs: allowed
 OsmoHLR# subscriber imsi 222222222 update msisdn 22222
 % Updated subscriber IMSI='222222222' to MSISDN='22222'
 OsmoHLR# subscriber imsi 333333 create
@@ -25,6 +34,9 @@ OsmoHLR# subscriber imsi 333333 create
     ID: 4
     IMSI: 333333
     MSISDN: none
+    GERAN-A: allowed
+    UTRAN-Iu: allowed
+    EUTRAN-SGs: allowed
 OsmoHLR# subscriber imsi 333333 update msisdn 3
 % Updated subscriber IMSI='333333' to MSISDN='3'
 OsmoHLR# subscriber imsi 333333 update aud2g comp128v2 ki 33333333333333333333333333333333
@@ -33,6 +45,9 @@ OsmoHLR# subscriber imsi 444444444444444 create
     ID: 5
     IMSI: 444444444444444
     MSISDN: none
+    GERAN-A: allowed
+    UTRAN-Iu: allowed
+    EUTRAN-SGs: allowed
 OsmoHLR# subscriber imsi 444444444444444 update msisdn 4444
 % Updated subscriber IMSI='444444444444444' to MSISDN='4444'
 OsmoHLR# subscriber imsi 444444444444444 update aud3g milenage k 44444444444444444444444444444444 op 44444444444444444444444444444444
@@ -41,6 +56,9 @@ OsmoHLR# subscriber imsi 5555555 create
     ID: 6
     IMSI: 5555555
     MSISDN: none
+    GERAN-A: allowed
+    UTRAN-Iu: allowed
+    EUTRAN-SGs: allowed
 OsmoHLR# subscriber imsi 5555555 update msisdn 55555555555555
 % Updated subscriber IMSI='5555555' to MSISDN='55555555555555'
 OsmoHLR# subscriber imsi 5555555 update aud2g xor ki 55555555555555555555555555555555
diff --git a/tests/db_upgrade/db_upgrade_test.ok b/tests/db_upgrade/db_upgrade_test.ok
index 0a45f7c..a366b3d 100644
--- a/tests/db_upgrade/db_upgrade_test.ok
+++ b/tests/db_upgrade/db_upgrade_test.ok
@@ -86,6 +86,7 @@ DDB Database <PATH>test.db' has been upgraded to HLR DB schema version 3
 DDB Database <PATH>test.db' has been upgraded to HLR DB schema version 4
 DDB Database <PATH>test.db' has been upgraded to HLR DB schema version 5
 DDB Database <PATH>test.db' has been upgraded to HLR DB schema version 6
+DDB Database <PATH>test.db' has been upgraded to HLR DB schema version 7
 DMAIN Cmdline option --db-check: Database was opened successfully, quitting.
 
 Resulting db:
@@ -174,10 +175,18 @@ subscriber_id|INTEGER|0||0
 
 Table subscriber_multi_msisdn contents:
 
+Table: subscriber_rat
+name|type|notnull|dflt_value|pk
+allowed|BOOLEAN|1|0|0
+rat|TEXT|1||0
+subscriber_id|INTEGER|0||0
+
+Table subscriber_rat contents:
+
 Verify that osmo-hlr can open it:
 osmo-hlr --database $db --db-check --config-file $srcdir/osmo-hlr.cfg
 rc = 0
 DMAIN hlr starting
 DDB using database: <PATH>test.db
-DDB Database <PATH>test.db' has HLR DB schema version 6
+DDB Database <PATH>test.db' has HLR DB schema version 7
 DMAIN Cmdline option --db-check: Database was opened successfully, quitting.