From 4aa826664dd5d6e784162c2393149ecb01550fb1 Mon Sep 17 00:00:00 2001

From: Gopal Tiwari <gtiwari@redhat.com>

Date: Wed, 18 Dec 2019 19:31:49 +0530

Subject: [PATCH BlueZ 1/2] core: Add AlwaysPairable to main.conf

commit 1880b299086659844889cdaf687133aca5eaf102

Author: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

Date:   Fri Jul 27 11:14:04 2018 +0300

    core: Add AlwaysPairable to main.conf

    This adds a new option called AlwaysPairable to main.conf, it can be

    used to enable Adapter.Pairable even in case there is no Agent

    available.

    Since that could be consider a security problem to allow pairing

    without user's consent the option defaults to false.

---

 src/adapter.c | 16 +++++++++++++++-

 src/agent.h   |  7 +++++++

 src/device.c  |  2 --

 src/hcid.h    |  1 +

 src/main.c    | 11 +++++++++++

 src/main.conf |  5 +++++

 6 files changed, 39 insertions(+), 3 deletions(-)

diff --git a/src/adapter.c b/src/adapter.c

index af340fd6e..720621f47 100644

--- a/src/adapter.c

+++ b/src/adapter.c

@@ -7754,6 +7754,19 @@ int adapter_set_io_capability(struct btd_adapter *adapter, uint8_t io_cap)

 {

 	struct mgmt_cp_set_io_capability cp;

+	if (!main_opts.pairable) {

+		if (io_cap == IO_CAPABILITY_INVALID) {

+			if (adapter->current_settings & MGMT_SETTING_BONDABLE)

+				set_mode(adapter, MGMT_OP_SET_BONDABLE, 0x00);

+

+			return 0;

+		}

+

+		if (!(adapter->current_settings & MGMT_SETTING_BONDABLE))

+			set_mode(adapter, MGMT_OP_SET_BONDABLE, 0x01);

+	} else if (io_cap == IO_CAPABILITY_INVALID)

+		io_cap = IO_CAPABILITY_NOINPUTNOOUTPUT;

+

 	memset(&cp, 0, sizeof(cp));

 	cp.io_capability = io_cap;

@@ -8682,7 +8695,8 @@ static void read_info_complete(uint8_t status, uint16_t length,

 	set_name(adapter, btd_adapter_get_name(adapter));

-	if (!(adapter->current_settings & MGMT_SETTING_BONDABLE))

+	if (main_opts.pairable &&

+			!(adapter->current_settings & MGMT_SETTING_BONDABLE))

 		set_mode(adapter, MGMT_OP_SET_BONDABLE, 0x01);

 	if (!kernel_conn_control)

diff --git a/src/agent.h b/src/agent.h

index 1e4692036..f14d14325 100644

--- a/src/agent.h

+++ b/src/agent.h

@@ -22,6 +22,13 @@

  *

  */

+#define IO_CAPABILITY_DISPLAYONLY	0x00

+#define IO_CAPABILITY_DISPLAYYESNO	0x01

+#define IO_CAPABILITY_KEYBOARDONLY	0x02

+#define IO_CAPABILITY_NOINPUTNOOUTPUT	0x03

+#define IO_CAPABILITY_KEYBOARDDISPLAY	0x04

+#define IO_CAPABILITY_INVALID		0xFF

+

 struct agent;

 typedef void (*agent_cb) (struct agent *agent, DBusError *err,

diff --git a/src/device.c b/src/device.c

index 4f1af7012..0d7907a69 100644

--- a/src/device.c

+++ b/src/device.c

@@ -75,8 +75,6 @@

 #include "attrib-server.h"

 #include "eir.h"

-#define IO_CAPABILITY_NOINPUTNOOUTPUT	0x03

-

 #define DISCONNECT_TIMER	2

 #define DISCOVERY_TIMER		1

 #define INVALID_FLAGS		0xff

diff --git a/src/hcid.h b/src/hcid.h

index 2c2b89d9c..ba250578a 100644

--- a/src/hcid.h

+++ b/src/hcid.h

@@ -38,6 +38,7 @@ typedef enum {

 struct main_opts {

 	char		*name;

 	uint32_t	class;

+	gboolean	pairable;

 	uint32_t	pairto;

 	uint32_t	discovto;

 	uint8_t		privacy;

diff --git a/src/main.c b/src/main.c

index 7e6af42cd..156406343 100644

--- a/src/main.c

+++ b/src/main.c

@@ -81,6 +81,7 @@ static const char *supported_options[] = {

 	"Name",

 	"Class",

 	"DiscoverableTimeout",

+	"AlwaysPairable"

 	"PairableTimeout",

 	"DeviceID",

 	"ReverseServiceDiscovery",

@@ -287,6 +288,16 @@ static void parse_config(GKeyFile *config)

 		main_opts.discovto = val;

 	}

+	boolean = g_key_file_get_boolean(config, "General",

+						"AlwaysPairable", &err;;

+	if (err) {

+		DBG("%s", err->message);

+		g_clear_error(&err;;

+	} else {

+		DBG("pairable=%s", boolean ? "true" : "false");

+		main_opts.pairable = boolean;

+	}

+

 	val = g_key_file_get_integer(config, "General",

 						"PairableTimeout", &err;;

 	if (err) {

diff --git a/src/main.conf b/src/main.conf

index cbae32ec5..0d480d183 100644

--- a/src/main.conf

+++ b/src/main.conf

@@ -13,6 +13,11 @@

 # 0 = disable timer, i.e. stay discoverable forever

 #DiscoverableTimeout = 0

+# Always allow pairing even if there are no agent registered

+# Possible values: true, false

+# Default: false

+#AlwaysPairable = false

+

 # How long to stay in pairable mode before going back to non-discoverable

 # The value is in seconds. Default is 0.

 # 0 = disable timer, i.e. stay pairable forever

-- 

2.17.2