When using LE Privacy it is useful to know the local identity address,
identity address type and identity resolving key. For debugging purposes
add these information to debugfs.
Signed-off-by: Marcel Holtmann <marcel@xxxxxxxxxxxx>
---
net/bluetooth/hci_core.c | 42 ++++++++++++++++++++++++++++++++++++++++--
1 file changed, 40 insertions(+), 2 deletions(-)
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 1651de959d9c..80462a126ebd 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -579,6 +579,42 @@ static int sniff_max_interval_get(void *data, u64 *val)
DEFINE_SIMPLE_ATTRIBUTE(sniff_max_interval_fops, sniff_max_interval_get,
sniff_max_interval_set, "%llu\n");
+static int identity_show(struct seq_file *f, void *p)
+{
+ struct hci_dev *hdev = f->private;
+ bdaddr_t *addr;
+ u8 addr_type;
+
+ hci_dev_lock(hdev);
+
+ if (test_bit(HCI_FORCE_STATIC_ADDR, &hdev->dev_flags) ||
+ !bacmp(&hdev->bdaddr, BDADDR_ANY)) {
+ addr = &hdev->static_addr;
+ addr_type = ADDR_LE_DEV_RANDOM;
+ } else {
+ addr = &hdev->bdaddr;
+ addr_type = ADDR_LE_DEV_PUBLIC;
+ }
+
+ seq_printf(f, "%pMR (type %u) %*phN\n", addr, addr_type, 16, hdev->irk);
+
+ hci_dev_unlock(hdev);
+
+ return 0;
+}
+
+static int identity_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, identity_show, inode->i_private);
+}
+
+static const struct file_operations identity_fops = {
+ .open = identity_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
static int random_address_show(struct seq_file *f, void *p)
{
struct hci_dev *hdev = f->private;
@@ -1624,12 +1660,14 @@ static int __hci_init(struct hci_dev *hdev)
}
if (lmp_le_capable(hdev)) {
+ debugfs_create_file("identity", 0400, hdev->debugfs,
+ hdev, &identity_fops);
+ debugfs_create_file("rpa_timeout", 0644, hdev->debugfs,
+ hdev, &rpa_timeout_fops);
debugfs_create_file("random_address", 0444, hdev->debugfs,
hdev, &random_address_fops);
debugfs_create_file("static_address", 0444, hdev->debugfs,
hdev, &static_address_fops);
- debugfs_create_file("rpa_timeout", 0644, hdev->debugfs,
- hdev, &rpa_timeout_fops);
/* For controllers with a public address, provide a debug
* option to force the usage of the configured static
--
1.8.5.3
--
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