[Bluez-devel] [PATCH] Add sdptool option for browsing with L2CAP_UUID

[Dimitry Andric <dimitry@andric.com>]

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Some phones (e.g. Samsung D500, Motorola MPx220, and possibly some
other Windows Mobile models) don't return any services if you ask them
for the public browse group.  You notice this, when "sdptool browse
xx:xx:xx:xx:xx:xx" returns immediately, without any output.

It turns out that the Windows XP Bluetooth browser asks for
L2CAP_UUID, which *does* work for all the phones I've tested.

So I've made this simple patch, that adds a `-l' or `--l2cap' command
line option to sdptool, to use the L2CAP_UUID for browsing, instead of
PUBLIC_BROWSE_GROUP.

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# bluez-utils-2.15-sdpbrowse-l2cap.patch
#
# Some phones don't return any services if you ask them for the public
# browse group.  It turns out that the Windows XP Bluetooth browser
# asks for L2CAP_UUID, which seems to work for all phones.
#
# This patch adds a `-l' or `--l2cap' command line option to sdptool,
# to use the L2CAP_UUID for browsing, instead of PUBLIC_BROWSE_GROUP.
#
# Dimitry Andric <dimitry@andric.com>, 2005-04-04 16:39:33

diff -urNd a/utils/tools/sdptool.c b/utils/tools/sdptool.c
--- a/utils/tools/sdptool.c	2004-12-25 19:06:02.000000000 +0100
+++ b/utils/tools/sdptool.c	2005-04-04 16:35:01.000000000 +0200
@@ -2016,12 +2033,13 @@
 static struct option browse_options[] = {
 	{ "help",    0,0, 'h' },
 	{ "tree",    0,0, 't' },
+	{ "l2cap",   0,0, 'l' },
 	{ 0, 0, 0, 0 }
 };
 
 static char *browse_help = 
 	"Usage:\n"
-	"\tbrowse [--tree] [bdaddr]\n";
+	"\tbrowse [--tree] [--l2cap] [bdaddr]\n";
 
 /*
  * Browse the full SDP database (i.e. list all services starting from the
@@ -2042,6 +2060,13 @@
 		case 't':
 			context.tree = 1;
 			break;
+		case 'l':
+			/* Some phones don't return any services if you ask them for the
+			 * public browse group.  It turns out that the Windows XP Bluetooth
+			 * browser asks for L2CAP_UUID, which seems to work for all phones.
+			 */
+			sdp_uuid16_create(&(context.group), L2CAP_UUID);
+			break;
 		default:
 			printf(browse_help);
 			return -1;