Release 4.11 net/bluetooth/hci_debugfs.c
/*
BlueZ - Bluetooth protocol stack for Linux
Copyright (C) 2014 Intel Corporation
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2 as
published by the Free Software Foundation;
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
SOFTWARE IS DISCLAIMED.
*/
#include <linux/debugfs.h>
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
#include "hci_debugfs.h"
#define DEFINE_QUIRK_ATTRIBUTE(__name, __quirk) \
static ssize_t __name ## _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(__quirk, &hdev->quirks) ? 'Y' : 'N'; \
buf[1] = '\n'; \
buf[2] = '\0'; \
return simple_read_from_buffer(user_buf, count, ppos, buf, 2); \
} \
\
static ssize_t __name ## _write(struct file *file, \
const char __user *user_buf, \
size_t count, loff_t *ppos) \
{ \
struct hci_dev *hdev = file->private_data; \
char buf[32]; \
size_t buf_size = min(count, (sizeof(buf) - 1)); \
bool enable; \
\
if (test_bit(HCI_UP, &hdev->flags)) \
return -EBUSY; \
\
if (copy_from_user(buf, user_buf, buf_size)) \
return -EFAULT; \
\
buf[buf_size] = '\0'; \
if (strtobool(buf, &enable)) \
return -EINVAL; \
\
if (enable == test_bit(__quirk, &hdev->quirks)) \
return -EALREADY; \
\
change_bit(__quirk, &hdev->quirks); \
\
return count; \
} \
\
static const struct file_operations __name ## _fops = { \
.open = simple_open, \
.read = __name ## _read, \
.write = __name ## _write, \
.llseek = default_llseek, \
} \
#define DEFINE_INFO_ATTRIBUTE(__name, __field) \
static int __name ## _show(struct seq_file *f, void *ptr) \
{ \
struct hci_dev *hdev = f->private; \
\
hci_dev_lock(hdev); \
seq_printf(f, "%s\n", hdev->__field ? : ""); \
hci_dev_unlock(hdev); \
\
return 0; \
} \
\
static int __name ## _open(struct inode *inode, struct file *file) \
{ \
return single_open(file, __name ## _show, inode->i_private); \
} \
\
static const struct file_operations __name ## _fops = { \
.open = __name ## _open, \
.read = seq_read, \
.llseek = seq_lseek, \
.release = single_release, \
} \
static int features_show(struct seq_file *f, void *ptr)
{
struct hci_dev *hdev = f->private;
u8 p;
hci_dev_lock(hdev);
for (p = 0; p < HCI_MAX_PAGES && p <= hdev->max_page; p++) {
seq_printf(f, "%2u: 0x%2.2x 0x%2.2x 0x%2.2x 0x%2.2x "
"0x%2.2x 0x%2.2x 0x%2.2x 0x%2.2x\n", p,
hdev->features[p][0], hdev->features[p][1],
hdev->features[p][2], hdev->features[p][3],
hdev->features[p][4], hdev->features[p][5],
hdev->features[p][6], hdev->features[p][7]);
}
if (lmp_le_capable(hdev))
seq_printf(f, "LE: 0x%2.2x 0x%2.2x 0x%2.2x 0x%2.2x "
"0x%2.2x 0x%2.2x 0x%2.2x 0x%2.2x\n",
hdev->le_features[0], hdev->le_features[1],
hdev->le_features[2], hdev->le_features[3],
hdev->le_features[4], hdev->le_features[5],
hdev->le_features[6], hdev->le_features[7]);
hci_dev_unlock(hdev);
return 0;
}
static int features_open(struct inode *inode, struct file *file)
{
return single_open(file, features_show, inode->i_private);
}
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static const struct file_operations features_fops = {
.open = features_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
static int device_id_show(struct seq_file *f, void *ptr)
{
struct hci_dev *hdev = f->private;
hci_dev_lock(hdev);
seq_printf(f, "%4.4x:%4.4x:%4.4x:%4.4x\n", hdev->devid_source,
hdev->devid_vendor, hdev->devid_product, hdev->devid_version);
hci_dev_unlock(hdev);
return 0;
}
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static int device_id_open(struct inode *inode, struct file *file)
{
return single_open(file, device_id_show, inode->i_private);
}
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static const struct file_operations device_id_fops = {
.open = device_id_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
static int device_list_show(struct seq_file *f, void *ptr)
{
struct hci_dev *hdev = f->private;
struct hci_conn_params *p;
struct bdaddr_list *b;
hci_dev_lock(hdev);
list_for_each_entry(b, &hdev->whitelist, list)
seq_printf(f, "%pMR (type %u)\n", &b->bdaddr, b->bdaddr_type);
list_for_each_entry(p, &hdev->le_conn_params, list) {
seq_printf(f, "%pMR (type %u) %u\n", &p->addr, p->addr_type,
p->auto_connect);
}
hci_dev_unlock(hdev);
return 0;
}
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static int device_list_open(struct inode *inode, struct file *file)
{
return single_open(file, device_list_show, inode->i_private);
}
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static const struct file_operations device_list_fops = {
.open = device_list_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
static int blacklist_show(struct seq_file *f, void *p)
{
struct hci_dev *hdev = f->private;
struct bdaddr_list *b;
hci_dev_lock(hdev);
list_for_each_entry(b, &hdev->blacklist, list)
seq_printf(f, "%pMR (type %u)\n", &b->bdaddr, b->bdaddr_type);
hci_dev_unlock(hdev);
return 0;
}
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static int blacklist_open(struct inode *inode, struct file *file)
{
return single_open(file, blacklist_show, inode->i_private);
}
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static const struct file_operations blacklist_fops = {
.open = blacklist_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
static int uuids_show(struct seq_file *f, void *p)
{
struct hci_dev *hdev = f->private;
struct bt_uuid *uuid;
hci_dev_lock(hdev);
list_for_each_entry(uuid, &hdev->uuids, list) {
u8 i, val[16];
/* The Bluetooth UUID values are stored in big endian,
* but with reversed byte order. So convert them into
* the right order for the %pUb modifier.
*/
for (i = 0; i < 16; i++)
val[i] = uuid->uuid[15 - i];
seq_printf(f, "%pUb\n", val);
}
hci_dev_unlock(hdev);
return 0;
}
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static int uuids_open(struct inode *inode, struct file *file)
{
return single_open(file, uuids_show, inode->i_private);
}
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static const struct file_operations uuids_fops = {
.open = uuids_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
static int remote_oob_show(struct seq_file *f, void *ptr)
{
struct hci_dev *hdev = f->private;
struct oob_data *data;
hci_dev_lock(hdev);
list_for_each_entry(data, &hdev->remote_oob_data, list) {
seq_printf(f, "%pMR (type %u) %u %*phN %*phN %*phN %*phN\n",
&data->bdaddr, data->bdaddr_type, data->present,
16, data->hash192, 16, data->rand192,
16, data->hash256, 16, data->rand256);
}
hci_dev_unlock(hdev);
return 0;
}
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static int remote_oob_open(struct inode *inode, struct file *file)
{
return single_open(file, remote_oob_show, inode->i_private);
}
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static const struct file_operations remote_oob_fops = {
.open = remote_oob_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
static int conn_info_min_age_set(void *data, u64 val)
{
struct hci_dev *hdev = data;
if (val == 0 || val > hdev->conn_info_max_age)
return -EINVAL;
hci_dev_lock(hdev);
hdev->conn_info_min_age = val;
hci_dev_unlock(hdev);
return 0;
}
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static int conn_info_min_age_get(void *data, u64 *val)
{
struct hci_dev *hdev = data;
hci_dev_lock(hdev);
*val = hdev->conn_info_min_age;
hci_dev_unlock(hdev);
return 0;
}
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DEFINE_SIMPLE_ATTRIBUTE(conn_info_min_age_fops, conn_info_min_age_get,
conn_info_min_age_set, "%llu\n");
static int conn_info_max_age_set(void *data, u64 val)
{
struct hci_dev *hdev = data;
if (val == 0 || val < hdev->conn_info_min_age)
return -EINVAL;
hci_dev_lock(hdev);
hdev->conn_info_max_age = val;
hci_dev_unlock(hdev);
return 0;
}
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static int conn_info_max_age_get(void *data, u64 *val)
{
struct hci_dev *hdev = data;
hci_dev_lock(hdev);
*val = hdev->conn_info_max_age;
hci_dev_unlock(hdev);
return 0;
}
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DEFINE_SIMPLE_ATTRIBUTE(conn_info_max_age_fops, conn_info_max_age_get,
conn_info_max_age_set, "%llu\n");
static ssize_t use_debug_keys_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] = hci_dev_test_flag(hdev, HCI_USE_DEBUG_KEYS) ? 'Y': 'N';
buf[1] = '\n';
buf[2] = '\0';
return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
}
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static const struct file_operations use_debug_keys_fops = {
.open = simple_open,
.read = use_debug_keys_read,
.llseek = default_llseek,
};
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] = hci_dev_test_flag(hdev, HCI_SC_ONLY) ? 'Y': 'N';
buf[1] = '\n';
buf[2] = '\0';
return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
}
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static const struct file_operations sc_only_mode_fops = {
.open = simple_open,
.read = sc_only_mode_read,
.llseek = default_llseek,
};
DEFINE_INFO_ATTRIBUTE(hardware_info, hw_info);
DEFINE_INFO_ATTRIBUTE(firmware_info, fw_info);
void hci_debugfs_create_common(struct hci_dev *hdev)
{
debugfs_create_file("features", 0444, hdev->debugfs, hdev,
&features_fops);
debugfs_create_u16("manufacturer", 0444, hdev->debugfs,
&hdev->manufacturer);
debugfs_create_u8("hci_version", 0444, hdev->debugfs, &hdev->hci_ver);
debugfs_create_u16("hci_revision", 0444, hdev->debugfs, &hdev->hci_rev);
debugfs_create_u8("hardware_error", 0444, hdev->debugfs,
&hdev->hw_error_code);
debugfs_create_file("device_id", 0444, hdev->debugfs, hdev,
&device_id_fops);
debugfs_create_file("device_list", 0444, hdev->debugfs, hdev,
&device_list_fops);
debugfs_create_file("blacklist", 0444, hdev->debugfs, hdev,
&blacklist_fops);
debugfs_create_file("uuids", 0444, hdev->debugfs, hdev, &uuids_fops);
debugfs_create_file("remote_oob", 0400, hdev->debugfs, hdev,
&remote_oob_fops);
debugfs_create_file("conn_info_min_age", 0644, hdev->debugfs, hdev,
&conn_info_min_age_fops);
debugfs_create_file("conn_info_max_age", 0644, hdev->debugfs, hdev,
&conn_info_max_age_fops);
if (lmp_ssp_capable(hdev) || lmp_le_capable(hdev))
debugfs_create_file("use_debug_keys", 0444, hdev->debugfs,
hdev, &use_debug_keys_fops);
if (lmp_sc_capable(hdev) || lmp_le_capable(hdev))
debugfs_create_file("sc_only_mode", 0444, hdev->debugfs,
hdev, &sc_only_mode_fops);
if (hdev->hw_info)
debugfs_create_file("hardware_info", 0444, hdev->debugfs,
hdev, &hardware_info_fops);
if (hdev->fw_info)
debugfs_create_file("firmware_info", 0444, hdev->debugfs,
hdev, &firmware_info_fops);
}
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static int inquiry_cache_show(struct seq_file *f, void *p)
{
struct hci_dev *hdev = f->private;
struct discovery_state *cache = &hdev->discovery;
struct inquiry_entry *e;
hci_dev_lock(hdev);
list_for_each_entry(e, &cache->all, all) {
struct inquiry_data *data = &e->data;
seq_printf(f, "%pMR %d %d %d 0x%.2x%.2x%.2x 0x%.4x %d %d %u\n",
&data->bdaddr,
data->pscan_rep_mode, data->pscan_period_mode,
data->pscan_mode, data->dev_class[2],
data->dev_class[1], data->dev_class[0],
__le16_to_cpu(data->clock_offset),
data->rssi, data->ssp_mode, e->timestamp);
}
hci_dev_unlock(hdev);
return 0;
}
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static int inquiry_cache_open(struct inode *inode, struct file *file)
{
return single_open(file, inquiry_cache_show, inode->i_private);
}
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static const struct file_operations inquiry_cache_fops = {
.open = inquiry_cache_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
static int link_keys_show(struct seq_file *f, void *ptr)
{
struct hci_dev *hdev = f->private;
struct link_key *key;
rcu_read_lock();
list_for_each_entry_rcu(key, &hdev->link_keys, list)
seq_printf(f, "%pMR %u %*phN %u\n", &key->bdaddr, key->type,
HCI_LINK_KEY_SIZE, key->val, key->pin_len);
rcu_read_unlock();
return 0;
}
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static int link_keys_open(struct inode *inode, struct file *file)
{
return single_open(file, link_keys_show, inode->i_private);
}
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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;
hci_dev_lock(hdev);
seq_printf(f, "0x%.2x%.2x%.2x\n", hdev->dev_class[2],
hdev->dev_class[1], hdev->dev_class[0]);
hci_dev_unlock(hdev);
return 0;
}
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static int dev_class_open(struct inode *inode, struct file *file)
{
return single_open(file, dev_class_show, inode->i_private);
}
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static const struct file_operations dev_class_fops = {
.open = dev_class_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
static int voice_setting_get(void *data, u64 *val)
{
struct hci_dev *hdev = data;
hci_dev_lock(hdev);
*val = hdev->voice_setting;
hci_dev_unlock(hdev);
return 0;
}
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DEFINE_SIMPLE_ATTRIBUTE(voice_setting_fops, voice_setting_get,
NULL, "0x%4.4llx\n");
static ssize_t ssp_debug_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] = hdev->ssp_debug_mode ? 'Y': 'N';
buf[1] = '\n';
buf[2] = '\0';
return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
}
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static const struct file_operations ssp_debug_mode_fops = {
.open = simple_open,
.read = ssp_debug_mode_read,
.llseek = default_llseek,
};
static int auto_accept_delay_set(void *data, u64 val)
{
struct hci_dev *hdev = data;
hci_dev_lock(hdev);
hdev->auto_accept_delay = val;
hci_dev_unlock(hdev);
return 0;
}
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static int auto_accept_delay_get(void *data, u64 *val)
{
struct hci_dev *hdev = data;
hci_dev_lock(hdev);
*val = hdev->auto_accept_delay;
hci_dev_unlock(hdev);
return 0;
}
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DEFINE_SIMPLE_ATTRIBUTE(auto_accept_delay_fops, auto_accept_delay_get,
auto_accept_delay_set, "%llu\n");
static int idle_timeout_set(void *data, u64 val)
{
struct hci_dev *hdev = data;
if (val != 0 && (val < 500 || val > 3600000))
return -EINVAL;
hci_dev_lock(hdev);
hdev->idle_timeout = val;
hci_dev_unlock(hdev);
return 0;
}
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static int idle_timeout_get(void *data, u64 *val)
{
struct hci_dev *hdev = data;
hci_dev_lock(hdev);
*val = hdev->idle_timeout;
hci_dev_unlock(hdev);
return 0;
}
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DEFINE_SIMPLE_ATTRIBUTE(idle_timeout_fops, idle_timeout_get,
idle_timeout_set, "%llu\n");
static int sniff_min_interval_set(void *data, u64 val)
{
struct hci_dev *hdev = data;
if (val == 0 || val % 2 || val > hdev->sniff_max_interval)
return -EINVAL;
hci_dev_lock(hdev);
hdev->sniff_min_interval = val;
hci_dev_unlock(hdev);
return 0;
}
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Marcel Holtmann | 59 | 100.00% | 1 | 100.00% |
Total | 59 | 100.00% | 1 | 100.00% |
static int sniff_min_interval_get(void *data, u64 *val)
{
struct hci_dev *hdev = data;
hci_dev_lock(hdev);
*val = hdev->sniff_min_interval;
hci_dev_unlock(hdev);
return 0;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Marcel Holtmann | 41 | 100.00% | 1 | 100.00% |
Total | 41 | 100.00% | 1 | 100.00% |
DEFINE_SIMPLE_ATTRIBUTE(sniff_min_interval_fops, sniff_min_interval_get,
sniff_min_interval_set, "%llu\n");
static int sniff_max_interval_set(void *data, u64 val)
{
struct hci_dev *hdev = data;
if (val == 0 || val % 2 || val < hdev->sniff_min_interval)
return -EINVAL;
hci_dev_lock(hdev);
hdev->sniff_max_interval = val;
hci_dev_unlock(hdev);
return 0;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Marcel Holtmann | 59 | 100.00% | 1 | 100.00% |
Total | 59 | 100.00% | 1 | 100.00% |
static int sniff_max_interval_get(void *data, u64 *val)
{
struct hci_dev *hdev = data;
hci_dev_lock(hdev);
*val = hdev->sniff_max_interval;
hci_dev_unlock(hdev);
return 0;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Marcel Holtmann | 41 | 100.00% | 1 | 100.00% |
Total | 41 | 100.00% | 1 | 100.00% |
DEFINE_SIMPLE_ATTRIBUTE(sniff_max_interval_fops, sniff_max_interval_get,
sniff_max_interval_set, "%llu\n");
void hci_debugfs_create_bredr(struct hci_dev *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, hdev,
&voice_setting_fops);
if (lmp_ssp_capable(hdev)) {
debugfs_create_file("ssp_debug_mode", 0444, hdev->debugfs,
hdev,