From a7fc397087f5ca483ca8d4405c351b311bcf9d93 Mon Sep 17 00:00:00 2001
From: Szymon Janc <szymon.janc@tieto.com>
Date: Thu, 23 Jan 2014 23:18:09 +0100
Subject: [PATCH] android/bluetooth: Add support for loading caches devices
 from storage

Info is now stored for all devices and bond state depends on file.
Based on that devices loaded from storage are put either to cache
or to bonded_devices list.
---
 android/bluetooth.c | 61 ++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 55 insertions(+), 6 deletions(-)

diff --git a/android/bluetooth.c b/android/bluetooth.c
index cf2dc8332..c64823f09 100644
--- a/android/bluetooth.c
+++ b/android/bluetooth.c
@@ -1679,7 +1679,8 @@ static void clear_uuids(void)
 					sizeof(cp), &cp, NULL, NULL, NULL);
 }
 
-static void create_device_from_info(GKeyFile *key_file, const char *peer)
+static struct device *create_device_from_info(GKeyFile *key_file,
+							const char *peer)
 {
 	struct device *dev;
 	uint8_t type;
@@ -1694,7 +1695,11 @@ static void create_device_from_info(GKeyFile *key_file, const char *peer)
 	str2ba(peer, &bdaddr);
 	dev = create_device(&bdaddr, type);
 
-	dev->bond_state = HAL_BOND_STATE_BONDED;
+	str = g_key_file_get_string(key_file, peer, "LinkKey", NULL);
+	if (str) {
+		g_free(str);
+		dev->bond_state = HAL_BOND_STATE_BONDED;
+	}
 
 	str = g_key_file_get_string(key_file, peer, "Name", NULL);
 	if (str) {
@@ -1730,6 +1735,8 @@ static void create_device_from_info(GKeyFile *key_file, const char *peer)
 
 		g_strfreev(uuids);
 	}
+
+	return dev;
 }
 
 static struct mgmt_link_key_info *get_key_info(GKeyFile *key_file, const char *peer)
@@ -1762,6 +1769,40 @@ failed:
 	return info;
 }
 
+static int device_timestamp_cmp(gconstpointer  a, gconstpointer  b)
+{
+	const struct device *deva = a;
+	const struct device *devb = b;
+
+	return deva->timestamp < devb->timestamp;
+}
+
+static void load_devices_cache(void)
+{
+	GKeyFile *key_file;
+	gchar **devs;
+	gsize len = 0;
+	unsigned int i;
+
+	key_file = g_key_file_new();
+
+	g_key_file_load_from_file(key_file, CACHE_FILE, 0, NULL);
+
+	devs = g_key_file_get_groups(key_file, &len);
+
+	for (i = 0; i < len; i++) {
+		struct device *dev;
+
+		dev = create_device_from_info(key_file, devs[i]);
+		devices = g_slist_prepend(devices, dev);
+	}
+
+	devices = g_slist_sort(devices, device_timestamp_cmp);
+
+	g_strfreev(devs);
+	g_key_file_free(key_file);
+}
+
 static void load_devices_info(bt_bluetooth_ready cb)
 {
 	GKeyFile *key_file;
@@ -1778,14 +1819,21 @@ static void load_devices_info(bt_bluetooth_ready cb)
 
 	for (i = 0; i < len; i++) {
 		struct mgmt_link_key_info *key_info;
-
-		create_device_from_info(key_file, devs[i]);
+		struct device *dev;
 
 		key_info = get_key_info(key_file, devs[i]);
-		if (key_info)
-			keys = g_slist_prepend(keys, key_info);
+		if (!key_info) {
+			error("Failed to load linkkey for %s, skipping",
+								devs[i]);
+			continue;
+		}
 
 		/* TODO ltk */
+
+		dev = create_device_from_info(key_file, devs[i]);
+
+		keys = g_slist_prepend(keys, key_info);
+		bonded_devices = g_slist_prepend(bonded_devices, dev);
 	}
 
 	load_link_keys(keys, cb);
@@ -1873,6 +1921,7 @@ static void read_info_complete(uint8_t status, uint16_t length,
 	clear_uuids();
 
 	load_devices_info(cb);
+	load_devices_cache();
 
 	set_io_capability();
 	set_device_id();
-- 
2.47.3