From e731e1d6dd4a8371ca2d9f8142b9afaeedd012a4 Mon Sep 17 00:00:00 2001
From: Holger Hans Peter Freyther <zecke@selfish.org>
Date: Tue, 27 Jul 2010 18:27:46 +0800
Subject: [PATCH] gsm_04_80: Allow to specify the alert pattern for the
 notification

Allow to specify the level (not the category) of the notification
this provides an easy way to test it on the phones.
---
 openbsc/include/openbsc/gsm_04_80.h |  4 ++--
 openbsc/src/gsm_04_80.c             | 14 ++++++++++----
 openbsc/src/vty_interface_layer3.c  |  9 ++++++---
 3 files changed, 18 insertions(+), 9 deletions(-)

diff --git a/openbsc/include/openbsc/gsm_04_80.h b/openbsc/include/openbsc/gsm_04_80.h
index 0d61dbd07..bbf15ef79 100644
--- a/openbsc/include/openbsc/gsm_04_80.h
+++ b/openbsc/include/openbsc/gsm_04_80.h
@@ -24,12 +24,12 @@ int gsm0480_send_ussd_reject(struct gsm_subscriber_connection *conn,
 			     const struct ussd_request *request);
 
 struct msgb *gsm0480_create_notifySS(const char *text);
-struct msgb *gsm0480_create_unstructuredSS_Notify(const char *text);
+struct msgb *gsm0480_create_unstructuredSS_Notify(int alertLevel, const char *text);
 
 int gsm0480_wrap_invoke(struct msgb *msg, int op, int link_id);
 int gsm0480_wrap_facility(struct msgb *msg);
 
-int gsm0480_send_ussdNotify(struct gsm_subscriber_connection *conn, const char *text);
+int gsm0480_send_ussdNotify(struct gsm_subscriber_connection *conn, int level, const char *text);
 int gsm0480_send_releaseComplete(struct gsm_subscriber_connection *conn);
 
 #endif
diff --git a/openbsc/src/gsm_04_80.c b/openbsc/src/gsm_04_80.c
index 4173aded6..a7c8bd7bc 100644
--- a/openbsc/src/gsm_04_80.c
+++ b/openbsc/src/gsm_04_80.c
@@ -314,7 +314,7 @@ struct msgb *gsm0480_create_notifySS(const char *text)
 	return msg;
 }
 
-struct msgb *gsm0480_create_unstructuredSS_Notify(const char *text)
+struct msgb *gsm0480_create_unstructuredSS_Notify(int alertPattern, const char *text)
 {
 	struct msgb *msg;
 	uint8_t *seq_len_ptr, *ussd_len_ptr, *data;
@@ -343,7 +343,13 @@ struct msgb *gsm0480_create_unstructuredSS_Notify(const char *text)
 	ussd_len_ptr[0] = len;
 	/* USSD-String } */
 
-	seq_len_ptr[0] = 3 + 2 + ussd_len_ptr[0];
+	/* alertingPattern { */
+	msgb_put_u8(msg, ASN1_OCTET_STRING_TAG);
+	msgb_put_u8(msg, 1);
+	msgb_put_u8(msg, alertPattern);
+	/* } alertingPattern */
+
+	seq_len_ptr[0] = 3 + 2 + ussd_len_ptr[0] + 3;
 	/* } SEQUENCE */
 
 	return msg;
@@ -456,12 +462,12 @@ int gsm0480_send_ussd_reject(struct gsm_subscriber_connection *conn,
 	return gsm0808_submit_dtap(conn, msg, 0);
 }
 
-int gsm0480_send_ussdNotify(struct gsm_subscriber_connection *conn, const char *text)
+int gsm0480_send_ussdNotify(struct gsm_subscriber_connection *conn, int level, const char *text)
 {
 	struct gsm48_hdr *gh;
 	struct msgb *msg;
 
-	msg = gsm0480_create_unstructuredSS_Notify(text);
+	msg = gsm0480_create_unstructuredSS_Notify(level, text);
 	if (!msg)
 		return -1;
 
diff --git a/openbsc/src/vty_interface_layer3.c b/openbsc/src/vty_interface_layer3.c
index b775af139..55fe1c065 100644
--- a/openbsc/src/vty_interface_layer3.c
+++ b/openbsc/src/vty_interface_layer3.c
@@ -375,9 +375,10 @@ DEFUN(subscriber_silent_call_stop,
 
 DEFUN(subscriber_ussd_notify,
       subscriber_ussd_notify_cmd,
-      "subscriber " SUBSCR_TYPES " ID ussd-notify .TEXT",
+      "subscriber " SUBSCR_TYPES " ID ussd-notify (0|1|2) .TEXT",
       SUBSCR_HELP "USSD Notify\n"
       "Subscriber ID\n"
+      "Alerting Level\n"
       "Text Message to send\n")
 {
 	char *text;
@@ -385,6 +386,7 @@ DEFUN(subscriber_ussd_notify,
 	struct gsm_network *gsmnet = gsmnet_from_vty(vty);
 	struct gsm_subscriber *subscr = get_subscr_by_argv(gsmnet, argv[0], argv[1]);
 	int rc;
+	int level;
 
 	if (!subscr) {
 		vty_out(vty, "%% No subscriber found for %s %s%s",
@@ -392,7 +394,8 @@ DEFUN(subscriber_ussd_notify,
 		return CMD_WARNING;
 	}
 
-	text = argv_concat(argv, argc, 2);
+	level = atoi(argv[2]);
+	text = argv_concat(argv, argc, 3);
 	if (!text) {
 		subscr_put(subscr);
 		return CMD_WARNING;
@@ -407,7 +410,7 @@ DEFUN(subscriber_ussd_notify,
 		return CMD_WARNING;
 	}
 
-	gsm0480_send_ussdNotify(conn, text);
+	gsm0480_send_ussdNotify(conn, level, text);
 	gsm0480_send_releaseComplete(conn);
 
 	subscr_put(subscr);