1 files changed, 32 insertions, 0 deletions

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 8710d1febee7..6b1844f00fbf 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -385,6 +385,36 @@ static const struct file_operations static_address_fops = {
         .release        = single_release,
 };
 
+static int long_term_keys_show(struct seq_file *f, void *ptr)
+{
+        struct hci_dev *hdev = f->private;
+        struct list_head *p, *n;
+
+        hci_dev_lock(hdev);
+        list_for_each_safe(p, n, &hdev->link_keys) {
+                struct smp_ltk *ltk = list_entry(p, struct smp_ltk, list);
+                seq_printf(f, "%pMR (type %u) %u %u %u %.4x %*phN %*phN\\n",
+                           &ltk->bdaddr, ltk->bdaddr_type, ltk->authenticated,
+                           ltk->type, ltk->enc_size, __le16_to_cpu(ltk->ediv),
+                           8, ltk->rand, 16, ltk->val);
+        }
+        hci_dev_unlock(hdev);
+
+        return 0;
+}
+
+static int long_term_keys_open(struct inode *inode, struct file *file)
+{
+        return single_open(file, long_term_keys_show, inode->i_private);
+}
+
+static const struct file_operations long_term_keys_fops = {
+        .open           = long_term_keys_open,
+        .read           = seq_read,
+        .llseek         = seq_lseek,
+        .release        = single_release,
+};
+
 /* ---- HCI requests ---- */
 
 static void hci_req_sync_complete(struct hci_dev *hdev, u8 result)
@@ -1121,6 +1151,8 @@ static int __hci_init(struct hci_dev *hdev)
                                   &hdev->le_white_list_size);
                 debugfs_create_file("static_address", 0444, hdev->debugfs,
                                    hdev, &static_address_fops);
+                debugfs_create_file("long_term_keys", 0400, hdev->debugfs,
+                                    hdev, &long_term_keys_fops);
         }
 
         return 0;