From f2e7c8f9960094622044197f99e0dc5599fea896 Mon Sep 17 00:00:00 2001
From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Date: Wed, 26 Feb 2025 13:11:28 -0500
Subject: [PATCH] client: Add support get/set PreferredBearer

This adds support for PreferredBearer which is printed with the likes of
info command:

bluetoothctl> info <addr>
...
	PreferredBearer: last-seen

It also introduces a new command to get/set the PreferredBearer:

[bluetoothctl]> bearer --help
Get/Set preferred bearer
Usage:
	 bearer <dev> [last-seen/bredr/le]

[bluetoothctl]> bearer <addr>
	PreferredBearer: last-seen
[bluetoothctl]> bearer <addr> le
bluetoothd: @ MGMT Command: Add Device (0x0033) plen 8
        LE Address: <addr>
        Action: Auto-connect remote device (0x02)
[CHG] Device <addr> PreferredBearer: le
Changing le succeeded
[bluetoothctl]> bearer <addr>
	PreferredBearer: le
[bluetoothctl]> bearer <addr> bredr
bluetoothd: @ MGMT Command: Remove Device (0x0034) plen 7
        LE Address: <addr>
[CHG] Device <addr> PreferredBearer: bredr
Changing bredr succeeded
---
 client/bluetoothctl.rst | 17 +++++++++++++++++
 client/main.c           | 27 +++++++++++++++++++++++++++
 2 files changed, 44 insertions(+)

diff --git a/client/bluetoothctl.rst b/client/bluetoothctl.rst
index fb0999626..0187e877d 100644
--- a/client/bluetoothctl.rst
+++ b/client/bluetoothctl.rst
@@ -303,6 +303,23 @@ Device information.
 
 :Usage: **> info <dev>**
 
+bearer
+------
+
+Get/Set preferred bearer.
+
+:Usage: **> bearer <dev> [last-seen/bredr/le]**
+:Example get preferred bearer:
+	| > bearer <addr>
+        |    PreferredBearer: last-seen
+:Example set preferred bearer to LE:
+	| > bearer <addr> le
+	| [CHG] Device <addr> PreferredBearer: le
+	| Changing le succeeded
+:Example set preferred bearer to BREDR:
+	| > bearer <addr> bredr
+	| [CHG] Device <addr> PreferredBearer: bredr
+	| Changing bredr succeeded
 
 Advertise Submenu
 =================
diff --git a/client/main.c b/client/main.c
index 3f2bfcf6b..1daa3d480 100644
--- a/client/main.c
+++ b/client/main.c
@@ -1726,6 +1726,7 @@ static void cmd_info(int argc, char *argv[])
 	print_property(proxy, "AdvertisingFlags");
 	print_property(proxy, "AdvertisingData");
 	print_property(proxy, "Sets");
+	print_property(proxy, "PreferredBearer");
 
 	battery_proxy = find_proxies_by_path(battery_proxies,
 					g_dbus_proxy_get_path(proxy));
@@ -2162,6 +2163,30 @@ static void cmd_wake(int argc, char *argv[])
 	return bt_shell_noninteractive_quit(EXIT_FAILURE);
 }
 
+static void cmd_bearer(int argc, char *argv[])
+{
+	GDBusProxy *proxy;
+	char *str;
+
+	proxy = find_device(argc, argv);
+	if (!proxy)
+		return bt_shell_noninteractive_quit(EXIT_FAILURE);
+
+	if (argc <= 2) {
+		print_property(proxy, "PreferredBearer");
+		return;
+	}
+
+	str = strdup(argv[2]);
+
+	if (g_dbus_proxy_set_property_basic(proxy, "PreferredBearer",
+					DBUS_TYPE_STRING, &str,
+					generic_callback, str, free))
+		return;
+
+	return bt_shell_noninteractive_quit(EXIT_FAILURE);
+}
+
 static void cmd_list_attributes(int argc, char *argv[])
 {
 	GDBusProxy *proxy;
@@ -3326,6 +3351,8 @@ static const struct bt_shell_menu main_menu = {
 				"a single profile only", dev_generator },
 	{ "wake",         "[dev] [on/off]",    cmd_wake, "Get/Set wake support",
 							dev_generator },
+	{ "bearer",       "<dev> [last-seen/bredr/le]", cmd_bearer,
+				"Get/Set preferred bearer", dev_generator },
 	{ } },
 };
 
-- 
2.47.3