diff options
| author | Marcel Holtmann | 2019-07-16 20:34:41 +0200 |
|---|---|---|
| committer | Johan Hedberg | 2019-08-17 12:54:40 +0200 |
| commit | 58a96fc35375ab87db7c5b69336f5befde1b548f (patch) | |
| tree | 3232c0e7f6658ead557a8d5c6055676143dd3456 /net/bluetooth/hci_debugfs.c | |
| parent | Bluetooth: hci_qca: Skip 1 error print in device_want_to_sleep() (diff) | |
| download | kernel-qcow2-linux-58a96fc35375ab87db7c5b69336f5befde1b548f.tar.gz kernel-qcow2-linux-58a96fc35375ab87db7c5b69336f5befde1b548f.tar.xz kernel-qcow2-linux-58a96fc35375ab87db7c5b69336f5befde1b548f.zip | |
Bluetooth: Add debug setting for changing minimum encryption key size
For testing and qualification purposes it is useful to allow changing
the minimum encryption key size value that the host stack is going to
enforce. This adds a new debugfs setting min_encrypt_key_size to achieve
this functionality.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Diffstat (limited to 'net/bluetooth/hci_debugfs.c')
| -rw-r--r-- | net/bluetooth/hci_debugfs.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/net/bluetooth/hci_debugfs.c b/net/bluetooth/hci_debugfs.c index bb67f4a5479a..402e2cc54044 100644 --- a/net/bluetooth/hci_debugfs.c +++ b/net/bluetooth/hci_debugfs.c @@ -433,6 +433,35 @@ static int auto_accept_delay_set(void *data, u64 val) return 0; } +static int min_encrypt_key_size_set(void *data, u64 val) +{ + struct hci_dev *hdev = data; + + if (val < 1 || val > 16) + return -EINVAL; + + hci_dev_lock(hdev); + hdev->min_enc_key_size = val; + hci_dev_unlock(hdev); + + return 0; +} + +static int min_encrypt_key_size_get(void *data, u64 *val) +{ + struct hci_dev *hdev = data; + + hci_dev_lock(hdev); + *val = hdev->min_enc_key_size; + hci_dev_unlock(hdev); + + return 0; +} + +DEFINE_SIMPLE_ATTRIBUTE(min_encrypt_key_size_fops, + min_encrypt_key_size_get, + min_encrypt_key_size_set, "%llu\n"); + static int auto_accept_delay_get(void *data, u64 *val) { struct hci_dev *hdev = data; @@ -545,6 +574,8 @@ void hci_debugfs_create_bredr(struct hci_dev *hdev) if (lmp_ssp_capable(hdev)) { debugfs_create_file("ssp_debug_mode", 0444, hdev->debugfs, hdev, &ssp_debug_mode_fops); + debugfs_create_file("min_encrypt_key_size", 0644, hdev->debugfs, + hdev, &min_encrypt_key_size_fops); debugfs_create_file("auto_accept_delay", 0644, hdev->debugfs, hdev, &auto_accept_delay_fops); } |