[PATCH BlueZ v4 1/2] client: add public-broadcast advertising command

[raghu447 <raghavendra.rao@collabora.com>]

From: raghavendra <raghavendra.rao@collabora.com>

---
 client/advertising.c | 74 ++++++++++++++++++++++++++++++++++++++++++++
 client/advertising.h |  2 ++
 client/main.c        | 19 ++++++++++++
 3 files changed, 95 insertions(+)

diff --git a/client/advertising.c b/client/advertising.c
index f9df1b855..2fc2ac9c6 100644
--- a/client/advertising.c
+++ b/client/advertising.c
@@ -20,6 +20,9 @@
 #include <string.h>
 #include <errno.h>
 
+#include "bluetooth/bluetooth.h"
+#include "bluetooth/uuid.h"
+
 #include "gdbus/gdbus.h"
 #include "src/shared/util.h"
 #include "src/shared/shell.h"
@@ -27,6 +30,9 @@
 
 #define AD_PATH "/org/bluez/advertising"
 #define AD_IFACE "org.bluez.LEAdvertisement1"
+#define AD_PUBLIC_BROADCAST_UUID "0x1856"
+#define AD_PUBLIC_BROADCAST_SQ BIT(1)
+#define AD_PUBLIC_BROADCAST_HQ BIT(2)
 
 struct ad_data {
 	uint8_t data[245];
@@ -1005,6 +1011,74 @@ static void ad_clear_data(int type)
 	memset(&ad.data[type], 0, sizeof(ad.data[type]));
 }
 
+static bool ad_is_public_broadcast_uuid(const char *uuid)
+{
+	return uuid && !bt_uuid_strcmp(uuid, AD_PUBLIC_BROADCAST_UUID);
+}
+
+static const char *ad_public_broadcast_state(void)
+{
+	if (!ad_is_public_broadcast_uuid(ad.service[AD_TYPE_AD].uuid))
+		return NULL;
+
+	if (ad.service[AD_TYPE_AD].data.len != 2)
+		return NULL;
+
+	if (ad.service[AD_TYPE_AD].data.data[0] == AD_PUBLIC_BROADCAST_SQ &&
+			ad.service[AD_TYPE_AD].data.data[1] == 0x00)
+		return "sq";
+
+	if (ad.service[AD_TYPE_AD].data.data[0] == AD_PUBLIC_BROADCAST_HQ &&
+			ad.service[AD_TYPE_AD].data.data[1] == 0x00)
+		return "hq";
+
+	return NULL;
+}
+
+void ad_advertise_public_broadcast(DBusConnection *conn, int argc, char *argv[])
+{
+	struct ad_data data = {
+		.data = { 0x00, 0x00 },
+		.len = 2,
+	};
+	const char *state;
+
+	if (argc < 2) {
+		state = ad_public_broadcast_state();
+		if (state)
+			bt_shell_printf("Public Broadcast: %s\n", state);
+		else
+			bt_shell_printf("Public Broadcast not set\n");
+
+		return bt_shell_noninteractive_quit(EXIT_SUCCESS);
+	}
+
+	if (!strlen(argv[1])) {
+		bt_shell_printf("Public broadcast value cannot be empty\n");
+		return bt_shell_noninteractive_quit(EXIT_FAILURE);
+	}
+
+	if (!strcasecmp(argv[1], "sq"))
+		data.data[0] = AD_PUBLIC_BROADCAST_SQ;
+	else if (!strcasecmp(argv[1], "hq"))
+		data.data[0] = AD_PUBLIC_BROADCAST_HQ;
+	else {
+		bt_shell_printf("Invalid argument: accepted values are "
+				"sq or hq\n");
+		return bt_shell_noninteractive_quit(EXIT_FAILURE);
+	}
+
+	ad_clear_service(AD_TYPE_AD);
+
+	ad.service[AD_TYPE_AD].uuid = g_strdup(AD_PUBLIC_BROADCAST_UUID);
+	ad.service[AD_TYPE_AD].data = data;
+
+	g_dbus_emit_property_changed(conn, AD_PATH, AD_IFACE,
+					prop_names.service[AD_TYPE_AD]);
+
+	return bt_shell_noninteractive_quit(EXIT_SUCCESS);
+}
+
 void ad_advertise_data(DBusConnection *conn, int type, int argc, char *argv[])
 {
 	char *endptr = NULL;
diff --git a/client/advertising.h b/client/advertising.h
index 9d124c7af..8c3fd041b 100644
--- a/client/advertising.h
+++ b/client/advertising.h
@@ -34,6 +34,8 @@ void ad_advertise_local_appearance(DBusConnection *conn, long int *value);
 void ad_advertise_duration(DBusConnection *conn, long int *value);
 void ad_advertise_timeout(DBusConnection *conn, long int *value);
 void ad_advertise_data(DBusConnection *conn, int type, int argc, char *argv[]);
+void ad_advertise_public_broadcast(DBusConnection *conn, int argc,
+							char *argv[]);
 void ad_disable_data(DBusConnection *conn, int type);
 void ad_advertise_discoverable(DBusConnection *conn, dbus_bool_t *value);
 void ad_advertise_discoverable_timeout(DBusConnection *conn, long int *value);
diff --git a/client/main.c b/client/main.c
index 57fa13888..afaf6045b 100644
--- a/client/main.c
+++ b/client/main.c
@@ -2920,6 +2920,17 @@ static char *scan_generator(const char *text, int state)
 	return argument_generator(text, state, scan_arguments);
 }
 
+static const char * const public_broadcast_arguments[] = {
+	"sq",
+	"hq",
+	NULL
+};
+
+static char *public_broadcast_generator(const char *text, int state)
+{
+	return argument_generator(text, state, public_broadcast_arguments);
+}
+
 static void cmd_advertise(int argc, char *argv[])
 {
 	dbus_bool_t enable;
@@ -2970,6 +2981,11 @@ static void cmd_advertise_data(int argc, char *argv[])
 	ad_advertise_data(dbus_conn, AD_TYPE_AD, argc, argv);
 }
 
+static void cmd_advertise_public_broadcast(int argc, char *argv[])
+{
+	ad_advertise_public_broadcast(dbus_conn, argc, argv);
+}
+
 static void cmd_advertise_sr_uuids(int argc, char *argv[])
 {
 	ad_advertise_uuids(dbus_conn, AD_TYPE_SRD, argc, argv);
@@ -3653,6 +3669,9 @@ static const struct bt_shell_menu advertise_menu = {
 			"Set/Get advertise manufacturer data" },
 	{ "data", "[type] [data=xx xx ...]", cmd_advertise_data,
 			"Set/Get advertise data" },
+	{ "public-broadcast", "[sq/hq]", cmd_advertise_public_broadcast,
+			"Set/Get BLE Audio Public Broadcast Announcement",
+			public_broadcast_generator },
 	{ "sr-uuids", "[uuid1 uuid2 ...]", cmd_advertise_sr_uuids,
 			"Set/Get scan response uuids" },
 	{ "sr-solicit", "[uuid1 uuid2 ...]", cmd_advertise_sr_solicit,
-- 
2.43.0