From: Miao-chen Chou <mcchou@xxxxxxxxxxxx>
This patch adds gatt_db_cleanup() function to clear client-role GATT DB for the
unpaired device. According to Core Specification v4.2 [1] and v5.0 [2], the
attributes should be cleared between unbonded devices after disconnection, since
the attributes are no long valid.
[1] Page 525, Section 2.5.2 Attribute Caching, Part G, Volume 3: "For clients
that do not have a trusted relationship with the server, the attribute cache is
valid only during the connection."
[2] Page 2227, Section 2.5.2 Attribute Caching, Part G, Volume 3: "For clients
that do not have a trusted relationship with the server, the attribute cache is
valid only during the connection."
---
src/device.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/src/device.c b/src/device.c
index 1b05561e4..f8cde0b43 100644
--- a/src/device.c
+++ b/src/device.c
@@ -267,6 +267,7 @@ struct pending_sdp_query {
static int device_browse_gatt(struct btd_device *device, DBusMessage *msg);
static int device_browse_sdp(struct btd_device *device, DBusMessage *msg);
+static void store_gatt_db(struct btd_device *device);
static struct pending_sdp_query *pending_sdp_query_new(DBusConnection *conn,
DBusMessage *msg, const struct btd_device *dev)
@@ -546,6 +547,15 @@ static void browse_request_free(struct browse_req *req)
g_free(req);
}
+static void gatt_db_cleanup(struct btd_device* device)
+{
+ if (!device->db)
+ return;
+
+ gatt_db_clear(device->db);
+ store_gatt_db(device);
+}
+
static void gatt_client_cleanup(struct btd_device *device)
{
if (!device->client)
@@ -578,6 +588,9 @@ static void attio_cleanup(struct btd_device *device)
device->att_io = NULL;
}
+ if (!device->bredr_state.bonded && !device->le_state.bonded)
+ gatt_db_cleanup(device);
+
gatt_client_cleanup(device);
gatt_server_cleanup(device);
--
2.13.0.219.gdb65acc882-goog
--
To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
