Bluetooth: Introduce a whitelist for BR/EDR devices
This patch extends the Add/Remove device commands by letting user space
pass BR/EDR addresses to them. The resulting entries get stored in a new
hdev->whitelist list. The idea is that we can now selectively accept
connections from devices in the list even though HCI_CONNECTABLE is not
set (the actual implementation of this is coming in a subsequent patch).
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 705f8df..728a6ee 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -191,6 +191,31 @@
.release = single_release,
};
+static int whitelist_show(struct seq_file *f, void *p)
+{
+ struct hci_dev *hdev = f->private;
+ struct bdaddr_list *b;
+
+ hci_dev_lock(hdev);
+ list_for_each_entry(b, &hdev->whitelist, list)
+ seq_printf(f, "%pMR (type %u)\n", &b->bdaddr, b->bdaddr_type);
+ hci_dev_unlock(hdev);
+
+ return 0;
+}
+
+static int whitelist_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, whitelist_show, inode->i_private);
+}
+
+static const struct file_operations whitelist_fops = {
+ .open = whitelist_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
static int uuids_show(struct seq_file *f, void *p)
{
struct hci_dev *hdev = f->private;
@@ -1707,6 +1732,8 @@
debugfs_create_u16("hci_revision", 0444, hdev->debugfs, &hdev->hci_rev);
debugfs_create_file("blacklist", 0444, hdev->debugfs, hdev,
&blacklist_fops);
+ debugfs_create_file("whitelist", 0444, hdev->debugfs, hdev,
+ &whitelist_fops);
debugfs_create_file("uuids", 0444, hdev->debugfs, hdev, &uuids_fops);
debugfs_create_file("conn_info_min_age", 0644, hdev->debugfs, hdev,
@@ -3825,6 +3852,7 @@
INIT_LIST_HEAD(&hdev->mgmt_pending);
INIT_LIST_HEAD(&hdev->blacklist);
+ INIT_LIST_HEAD(&hdev->whitelist);
INIT_LIST_HEAD(&hdev->uuids);
INIT_LIST_HEAD(&hdev->link_keys);
INIT_LIST_HEAD(&hdev->long_term_keys);
@@ -4036,6 +4064,7 @@
hci_dev_lock(hdev);
hci_bdaddr_list_clear(&hdev->blacklist);
+ hci_bdaddr_list_clear(&hdev->whitelist);
hci_uuids_clear(hdev);
hci_link_keys_clear(hdev);
hci_smp_ltks_clear(hdev);