[PATCH v2 1/9] adapter: Add btd_adapter_find_device_by_fd

[Luiz Augusto von Dentz <luiz.dentz@xxxxxxxxx>]

From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>

This adds btd_adapter_find_device_by_fd that lookup a device by a fd
socket destination address.
---
 src/adapter.c | 33 +++++++++++++++++++++++++++++++++
 src/adapter.h |  1 +
 2 files changed, 34 insertions(+)

diff --git a/src/adapter.c b/src/adapter.c
index b453e86a03c1..51b099daefdf 100644
--- a/src/adapter.c
+++ b/src/adapter.c
@@ -1383,6 +1383,39 @@ struct btd_device *btd_adapter_get_device(struct btd_adapter *adapter,
 	return adapter_create_device(adapter, addr, addr_type);
 }
 
+struct btd_device *btd_adapter_find_device_by_fd(int fd)
+{
+	bdaddr_t src, dst;
+	uint8_t dst_type;
+	GIOChannel *io = NULL;
+	GError *gerr = NULL;
+	struct btd_adapter *adapter;
+
+	io = g_io_channel_unix_new(fd);
+	if (!io)
+		return NULL;
+
+	bt_io_get(io, &gerr,
+			BT_IO_OPT_SOURCE_BDADDR, &src,
+			BT_IO_OPT_DEST_BDADDR, &dst,
+			BT_IO_OPT_DEST_TYPE, &dst_type,
+			BT_IO_OPT_INVALID);
+	if (gerr) {
+		error("bt_io_get: %s", gerr->message);
+		g_error_free(gerr);
+		g_io_channel_unref(io);
+		return NULL;
+	}
+
+	g_io_channel_unref(io);
+
+	adapter = adapter_find(&src);
+	if (!adapter)
+		return NULL;
+
+	return btd_adapter_find_device(adapter, &dst, dst_type);
+}
+
 sdp_list_t *btd_adapter_get_services(struct btd_adapter *adapter)
 {
 	return adapter->services;
diff --git a/src/adapter.h b/src/adapter.h
index b09044edda70..f38f473b79d7 100644
--- a/src/adapter.h
+++ b/src/adapter.h
@@ -86,6 +86,7 @@ struct btd_device *btd_adapter_find_device(struct btd_adapter *adapter,
 							uint8_t dst_type);
 struct btd_device *btd_adapter_find_device_by_path(struct btd_adapter *adapter,
 						   const char *path);
+struct btd_device *btd_adapter_find_device_by_fd(int fd);
 
 void btd_adapter_update_found_device(struct btd_adapter *adapter,
 					const bdaddr_t *bdaddr,
-- 
2.37.2