[PATCH 2/2] sixaxis: Ask user whether cable configuration should be allowed

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Previously, users doing cable configuration of Sixaxis PS3 controllers
would only get asked whether a device was allowed to connect to the
computer when switching it to Bluetooth mode: unplugging it, and
pressing the PS button.

Instead, we should ask the user straight away, through the agent,
whether the pad should be allowed to connect.

This makes it easier to setup those devices, while keeping security.
---
 plugins/sixaxis.c | 80 +++++++++++++++++++++++++++++++++++++++++++----
--------
 1 file changed, 63 insertions(+), 17 deletions(-)

diff --git a/plugins/sixaxis.c b/plugins/sixaxis.c
index fcc93bc..8b9c19f 100644
--- a/plugins/sixaxis.c
+++ b/plugins/sixaxis.c
@@ -44,6 +44,7 @@
 
 #include "src/adapter.h"
 #include "src/device.h"
+#include "src/agent.h"
 #include "src/plugin.h"
 #include "src/log.h"
 #include "src/shared/util.h"
@@ -71,6 +72,12 @@ static const struct {
 	},
 };
 
+struct authentication_closure {
+	struct btd_adapter *adapter;
+	struct btd_device *device;
+	int fd;
+};
+
 struct leds_data {
 	char *syspath_prefix;
 	uint8_t bitmap;
@@ -255,19 +262,57 @@ out:
 	return FALSE;
 }
 
+static void agent_auth_cb(DBusError *derr,
+				void *user_data)
+{
+	struct authentication_closure *closure = user_data;
+
+	if (derr != NULL) {
+		DBG("Agent replied negatively, removing temporary
device");
+		goto error;
+	} else {
+		char master_addr[18], adapter_addr[18];
+		bdaddr_t master_bdaddr;
+		const bdaddr_t *adapter_bdaddr;
+		const char *device_addr = "FIXME";
+
+		btd_device_set_temporary(closure->device, false);
+
+		if (get_master_bdaddr(closure->fd, &master_bdaddr) <
0)
+			goto error;
+
+		adapter_bdaddr = btd_adapter_get_address(closure
->adapter);
+		if (bacmp(adapter_bdaddr, &master_bdaddr)) {
+			if (set_master_bdaddr(closure->fd,
adapter_bdaddr) < 0)
+				goto error;
+		}
+
+		ba2str(&master_bdaddr, master_addr);
+		ba2str(adapter_bdaddr, adapter_addr);
+		DBG("remote %s old_master %s new_master %s",
+					device_addr, master_addr,
adapter_addr);
+
+		g_free(closure);
+
+		return;
+	}
+
+error:
+	btd_adapter_remove_device(closure->adapter, closure->device);
+	g_free(closure);
+}
+
 static bool setup_device(int fd, int index, struct btd_adapter
*adapter)
 {
-	char device_addr[18], master_addr[18], adapter_addr[18];
-	bdaddr_t device_bdaddr, master_bdaddr;
+	char device_addr[18];
+	bdaddr_t device_bdaddr;
 	const bdaddr_t *adapter_bdaddr;
 	struct btd_device *device;
+	struct authentication_closure *closure;
 
 	if (get_device_bdaddr(fd, &device_bdaddr) < 0)
 		return false;
 
-	if (get_master_bdaddr(fd, &master_bdaddr) < 0)
-		return false;
-
 	/* This can happen if controller was plugged while already
connected
 	 * eg. to charge up battery.
 	 * Don't set LEDs in that case, hence return false */
@@ -276,18 +321,7 @@ static bool setup_device(int fd, int index, struct
btd_adapter *adapter)
 	if (device && btd_device_is_connected(device))
 		return false;
 
-	adapter_bdaddr = btd_adapter_get_address(adapter);
-
-	if (bacmp(adapter_bdaddr, &master_bdaddr)) {
-		if (set_master_bdaddr(fd, adapter_bdaddr) < 0)
-			return false;
-	}
-
 	ba2str(&device_bdaddr, device_addr);
-	ba2str(&master_bdaddr, master_addr);
-	ba2str(adapter_bdaddr, adapter_addr);
-	DBG("remote %s old_master %s new_master %s",
-				device_addr, master_addr,
adapter_addr);
 
 	device = btd_adapter_get_device(adapter, &device_bdaddr,
BDADDR_BREDR);
 
@@ -302,7 +336,19 @@ static bool setup_device(int fd, int index, struct
btd_adapter *adapter)
 	btd_device_device_set_name(device, devices[index].name);
 	btd_device_set_pnpid(device, devices[index].source,
devices[index].vid,
 				devices[index].pid,
devices[index].version);
-	btd_device_set_temporary(device, false);
+	btd_device_set_temporary(device, true);
+
+	closure = g_try_new0(struct authentication_closure, 1);
+	if (!closure) {
+		btd_adapter_remove_device(adapter, device);
+		return false;
+	}
+	closure->adapter = adapter;
+	closure->device = device;
+	closure->fd = fd;
+	adapter_bdaddr = btd_adapter_get_address(adapter);
+	btd_request_authorization_cable_configured(adapter_bdaddr,
&device_bdaddr,
+				HID_UUID, agent_auth_cb, closure);
 
 	return true;
 }
-- 
2.4.3
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