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Bluetooth: Fix scope of sc_only_mode debugfs entry
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The sc_only_mode debugfs entry is used to read the current state of the
Secure Connections Only mode. Before Bluetooth 4.2 this mode was only
for BR/EDR controllers and with that tight to the support Secure Simple
Pairing. Since Secure Connections is now available for BR/EDR and LE
this debugfs entry is no longer correctly place.

Move it to the common section and enable it when either BR/EDR Secure
Connections feature is supported or when the controller has LE support.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
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holtmann committed Jan 2, 2015
1 parent 05b3c3e commit cb0d2fa
Showing 1 changed file with 23 additions and 22 deletions.
45 changes: 23 additions & 22 deletions net/bluetooth/hci_debugfs.c
Original file line number Diff line number Diff line change
Expand Up @@ -212,6 +212,24 @@ static int conn_info_max_age_get(void *data, u64 *val)
DEFINE_SIMPLE_ATTRIBUTE(conn_info_max_age_fops, conn_info_max_age_get,
conn_info_max_age_set, "%llu\n");

static ssize_t sc_only_mode_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct hci_dev *hdev = file->private_data;
char buf[3];

buf[0] = test_bit(HCI_SC_ONLY, &hdev->dev_flags) ? 'Y': 'N';
buf[1] = '\n';
buf[2] = '\0';
return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
}

static const struct file_operations sc_only_mode_fops = {
.open = simple_open,
.read = sc_only_mode_read,
.llseek = default_llseek,
};

void hci_debugfs_create_common(struct hci_dev *hdev)
{
debugfs_create_file("features", 0444, hdev->debugfs, hdev,
Expand All @@ -230,6 +248,10 @@ void hci_debugfs_create_common(struct hci_dev *hdev)
&conn_info_min_age_fops);
debugfs_create_file("conn_info_max_age", 0644, hdev->debugfs, hdev,
&conn_info_max_age_fops);

if (lmp_sc_capable(hdev) || lmp_le_capable(hdev))
debugfs_create_file("sc_only_mode", 0444, hdev->debugfs,
hdev, &sc_only_mode_fops);
}

static int inquiry_cache_show(struct seq_file *f, void *p)
Expand Down Expand Up @@ -357,24 +379,6 @@ static int auto_accept_delay_get(void *data, u64 *val)
DEFINE_SIMPLE_ATTRIBUTE(auto_accept_delay_fops, auto_accept_delay_get,
auto_accept_delay_set, "%llu\n");

static ssize_t sc_only_mode_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct hci_dev *hdev = file->private_data;
char buf[3];

buf[0] = test_bit(HCI_SC_ONLY, &hdev->dev_flags) ? 'Y': 'N';
buf[1] = '\n';
buf[2] = '\0';
return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
}

static const struct file_operations sc_only_mode_fops = {
.open = simple_open,
.read = sc_only_mode_read,
.llseek = default_llseek,
};

static int idle_timeout_set(void *data, u64 val)
{
struct hci_dev *hdev = data;
Expand Down Expand Up @@ -470,12 +474,9 @@ void hci_debugfs_create_bredr(struct hci_dev *hdev)
debugfs_create_file("voice_setting", 0444, hdev->debugfs, hdev,
&voice_setting_fops);

if (lmp_ssp_capable(hdev)) {
if (lmp_ssp_capable(hdev))
debugfs_create_file("auto_accept_delay", 0644, hdev->debugfs,
hdev, &auto_accept_delay_fops);
debugfs_create_file("sc_only_mode", 0444, hdev->debugfs,
hdev, &sc_only_mode_fops);
}

if (lmp_sniff_capable(hdev)) {
debugfs_create_file("idle_timeout", 0644, hdev->debugfs,
Expand Down

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