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authorMarcel Holtmann <marcel@holtmann.org>2013-10-18 12:04:52 -0700
committerJohan Hedberg <johan.hedberg@intel.com>2013-10-19 16:24:50 +0300
commit02d08d15e0dae9f571c66cc7529a0138bbae1506 (patch)
tree4907d76cae87a61acfc94e40e197a2387aa590d9 /net/bluetooth
parentbabdbb3c130bf8b6e58811a9cf4764eb68004d25 (diff)
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Bluetooth: Expose current list of link keys via debugfs
For debugging purposes expose the current list of link keys via debugfs. This file is read-only and limited to root access. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Diffstat (limited to 'net/bluetooth')
-rw-r--r--net/bluetooth/hci_core.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 3ef5fdde8437..ee946cb26906 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -187,6 +187,34 @@ static const struct file_operations inquiry_cache_fops = {
.release = single_release,
};
+static int link_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 link_key *key = list_entry(p, struct link_key, list);
+ seq_printf(f, "%pMR %u %*phN %u\n", &key->bdaddr, key->type,
+ HCI_LINK_KEY_SIZE, key->val, key->pin_len);
+ }
+ hci_dev_unlock(hdev);
+
+ return 0;
+}
+
+static int link_keys_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, link_keys_show, inode->i_private);
+}
+
+static const struct file_operations link_keys_fops = {
+ .open = link_keys_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
static int dev_class_show(struct seq_file *f, void *ptr)
{
struct hci_dev *hdev = f->private;
@@ -1067,6 +1095,8 @@ static int __hci_init(struct hci_dev *hdev)
if (lmp_bredr_capable(hdev)) {
debugfs_create_file("inquiry_cache", 0444, hdev->debugfs,
hdev, &inquiry_cache_fops);
+ debugfs_create_file("link_keys", 0400, hdev->debugfs,
+ hdev, &link_keys_fops);
debugfs_create_file("dev_class", 0444, hdev->debugfs,
hdev, &dev_class_fops);
debugfs_create_file("voice_setting", 0444, hdev->debugfs,