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1252 lines
30 KiB
1252 lines
30 KiB
/* |
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BlueZ - Bluetooth protocol stack for Linux |
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|
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Copyright (C) 2014 Intel Corporation |
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License version 2 as |
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published by the Free Software Foundation; |
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. |
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IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY |
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CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES |
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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|
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ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, |
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COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS |
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SOFTWARE IS DISCLAIMED. |
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*/ |
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#include <linux/debugfs.h> |
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#include <net/bluetooth/bluetooth.h> |
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#include <net/bluetooth/hci_core.h> |
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#include "smp.h" |
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#include "hci_debugfs.h" |
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#define DEFINE_QUIRK_ATTRIBUTE(__name, __quirk) \ |
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static ssize_t __name ## _read(struct file *file, \ |
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char __user *user_buf, \ |
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size_t count, loff_t *ppos) \ |
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{ \ |
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struct hci_dev *hdev = file->private_data; \ |
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char buf[3]; \ |
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\ |
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buf[0] = test_bit(__quirk, &hdev->quirks) ? 'Y' : 'N'; \ |
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buf[1] = '\n'; \ |
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buf[2] = '\0'; \ |
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return simple_read_from_buffer(user_buf, count, ppos, buf, 2); \ |
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} \ |
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\ |
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static ssize_t __name ## _write(struct file *file, \ |
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const char __user *user_buf, \ |
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size_t count, loff_t *ppos) \ |
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{ \ |
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struct hci_dev *hdev = file->private_data; \ |
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bool enable; \ |
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int err; \ |
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\ |
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if (test_bit(HCI_UP, &hdev->flags)) \ |
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return -EBUSY; \ |
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\ |
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err = kstrtobool_from_user(user_buf, count, &enable); \ |
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if (err) \ |
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return err; \ |
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\ |
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if (enable == test_bit(__quirk, &hdev->quirks)) \ |
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return -EALREADY; \ |
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\ |
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change_bit(__quirk, &hdev->quirks); \ |
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\ |
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return count; \ |
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} \ |
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\ |
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static const struct file_operations __name ## _fops = { \ |
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.open = simple_open, \ |
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.read = __name ## _read, \ |
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.write = __name ## _write, \ |
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.llseek = default_llseek, \ |
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} \ |
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#define DEFINE_INFO_ATTRIBUTE(__name, __field) \ |
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static int __name ## _show(struct seq_file *f, void *ptr) \ |
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{ \ |
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struct hci_dev *hdev = f->private; \ |
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\ |
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hci_dev_lock(hdev); \ |
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seq_printf(f, "%s\n", hdev->__field ? : ""); \ |
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hci_dev_unlock(hdev); \ |
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\ |
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return 0; \ |
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} \ |
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\ |
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DEFINE_SHOW_ATTRIBUTE(__name) |
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static int features_show(struct seq_file *f, void *ptr) |
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{ |
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struct hci_dev *hdev = f->private; |
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u8 p; |
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hci_dev_lock(hdev); |
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for (p = 0; p < HCI_MAX_PAGES && p <= hdev->max_page; p++) |
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seq_printf(f, "%2u: %8ph\n", p, hdev->features[p]); |
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if (lmp_le_capable(hdev)) |
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seq_printf(f, "LE: %8ph\n", hdev->le_features); |
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hci_dev_unlock(hdev); |
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return 0; |
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} |
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DEFINE_SHOW_ATTRIBUTE(features); |
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static int device_id_show(struct seq_file *f, void *ptr) |
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{ |
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struct hci_dev *hdev = f->private; |
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hci_dev_lock(hdev); |
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seq_printf(f, "%4.4x:%4.4x:%4.4x:%4.4x\n", hdev->devid_source, |
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hdev->devid_vendor, hdev->devid_product, hdev->devid_version); |
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hci_dev_unlock(hdev); |
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return 0; |
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} |
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DEFINE_SHOW_ATTRIBUTE(device_id); |
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static int device_list_show(struct seq_file *f, void *ptr) |
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{ |
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struct hci_dev *hdev = f->private; |
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struct hci_conn_params *p; |
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struct bdaddr_list *b; |
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hci_dev_lock(hdev); |
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list_for_each_entry(b, &hdev->accept_list, list) |
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seq_printf(f, "%pMR (type %u)\n", &b->bdaddr, b->bdaddr_type); |
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list_for_each_entry(p, &hdev->le_conn_params, list) { |
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seq_printf(f, "%pMR (type %u) %u\n", &p->addr, p->addr_type, |
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p->auto_connect); |
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} |
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hci_dev_unlock(hdev); |
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return 0; |
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} |
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DEFINE_SHOW_ATTRIBUTE(device_list); |
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static int blacklist_show(struct seq_file *f, void *p) |
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{ |
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struct hci_dev *hdev = f->private; |
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struct bdaddr_list *b; |
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hci_dev_lock(hdev); |
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list_for_each_entry(b, &hdev->reject_list, list) |
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seq_printf(f, "%pMR (type %u)\n", &b->bdaddr, b->bdaddr_type); |
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hci_dev_unlock(hdev); |
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return 0; |
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} |
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DEFINE_SHOW_ATTRIBUTE(blacklist); |
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static int blocked_keys_show(struct seq_file *f, void *p) |
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{ |
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struct hci_dev *hdev = f->private; |
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struct blocked_key *key; |
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rcu_read_lock(); |
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list_for_each_entry_rcu(key, &hdev->blocked_keys, list) |
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seq_printf(f, "%u %*phN\n", key->type, 16, key->val); |
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rcu_read_unlock(); |
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return 0; |
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} |
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DEFINE_SHOW_ATTRIBUTE(blocked_keys); |
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static int uuids_show(struct seq_file *f, void *p) |
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{ |
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struct hci_dev *hdev = f->private; |
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struct bt_uuid *uuid; |
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hci_dev_lock(hdev); |
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list_for_each_entry(uuid, &hdev->uuids, list) { |
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u8 i, val[16]; |
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/* The Bluetooth UUID values are stored in big endian, |
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* but with reversed byte order. So convert them into |
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* the right order for the %pUb modifier. |
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*/ |
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for (i = 0; i < 16; i++) |
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val[i] = uuid->uuid[15 - i]; |
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seq_printf(f, "%pUb\n", val); |
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} |
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hci_dev_unlock(hdev); |
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return 0; |
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} |
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DEFINE_SHOW_ATTRIBUTE(uuids); |
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static int remote_oob_show(struct seq_file *f, void *ptr) |
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{ |
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struct hci_dev *hdev = f->private; |
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struct oob_data *data; |
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hci_dev_lock(hdev); |
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list_for_each_entry(data, &hdev->remote_oob_data, list) { |
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seq_printf(f, "%pMR (type %u) %u %*phN %*phN %*phN %*phN\n", |
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&data->bdaddr, data->bdaddr_type, data->present, |
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16, data->hash192, 16, data->rand192, |
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16, data->hash256, 16, data->rand256); |
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} |
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hci_dev_unlock(hdev); |
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return 0; |
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} |
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DEFINE_SHOW_ATTRIBUTE(remote_oob); |
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static int conn_info_min_age_set(void *data, u64 val) |
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{ |
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struct hci_dev *hdev = data; |
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if (val == 0 || val > hdev->conn_info_max_age) |
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return -EINVAL; |
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hci_dev_lock(hdev); |
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hdev->conn_info_min_age = val; |
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hci_dev_unlock(hdev); |
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return 0; |
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} |
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static int conn_info_min_age_get(void *data, u64 *val) |
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{ |
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struct hci_dev *hdev = data; |
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hci_dev_lock(hdev); |
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*val = hdev->conn_info_min_age; |
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hci_dev_unlock(hdev); |
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return 0; |
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} |
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DEFINE_DEBUGFS_ATTRIBUTE(conn_info_min_age_fops, conn_info_min_age_get, |
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conn_info_min_age_set, "%llu\n"); |
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static int conn_info_max_age_set(void *data, u64 val) |
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{ |
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struct hci_dev *hdev = data; |
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if (val == 0 || val < hdev->conn_info_min_age) |
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return -EINVAL; |
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hci_dev_lock(hdev); |
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hdev->conn_info_max_age = val; |
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hci_dev_unlock(hdev); |
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return 0; |
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} |
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static int conn_info_max_age_get(void *data, u64 *val) |
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{ |
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struct hci_dev *hdev = data; |
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hci_dev_lock(hdev); |
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*val = hdev->conn_info_max_age; |
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hci_dev_unlock(hdev); |
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return 0; |
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} |
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DEFINE_DEBUGFS_ATTRIBUTE(conn_info_max_age_fops, conn_info_max_age_get, |
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conn_info_max_age_set, "%llu\n"); |
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static ssize_t use_debug_keys_read(struct file *file, char __user *user_buf, |
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size_t count, loff_t *ppos) |
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{ |
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struct hci_dev *hdev = file->private_data; |
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char buf[3]; |
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buf[0] = hci_dev_test_flag(hdev, HCI_USE_DEBUG_KEYS) ? 'Y' : 'N'; |
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buf[1] = '\n'; |
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buf[2] = '\0'; |
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return simple_read_from_buffer(user_buf, count, ppos, buf, 2); |
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} |
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static const struct file_operations use_debug_keys_fops = { |
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.open = simple_open, |
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.read = use_debug_keys_read, |
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.llseek = default_llseek, |
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}; |
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static ssize_t sc_only_mode_read(struct file *file, char __user *user_buf, |
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size_t count, loff_t *ppos) |
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{ |
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struct hci_dev *hdev = file->private_data; |
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char buf[3]; |
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buf[0] = hci_dev_test_flag(hdev, HCI_SC_ONLY) ? 'Y' : 'N'; |
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buf[1] = '\n'; |
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buf[2] = '\0'; |
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return simple_read_from_buffer(user_buf, count, ppos, buf, 2); |
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} |
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static const struct file_operations sc_only_mode_fops = { |
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.open = simple_open, |
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.read = sc_only_mode_read, |
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.llseek = default_llseek, |
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}; |
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DEFINE_INFO_ATTRIBUTE(hardware_info, hw_info); |
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DEFINE_INFO_ATTRIBUTE(firmware_info, fw_info); |
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void hci_debugfs_create_common(struct hci_dev *hdev) |
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{ |
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debugfs_create_file("features", 0444, hdev->debugfs, hdev, |
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&features_fops); |
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debugfs_create_u16("manufacturer", 0444, hdev->debugfs, |
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&hdev->manufacturer); |
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debugfs_create_u8("hci_version", 0444, hdev->debugfs, &hdev->hci_ver); |
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debugfs_create_u16("hci_revision", 0444, hdev->debugfs, &hdev->hci_rev); |
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debugfs_create_u8("hardware_error", 0444, hdev->debugfs, |
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&hdev->hw_error_code); |
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debugfs_create_file("device_id", 0444, hdev->debugfs, hdev, |
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&device_id_fops); |
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debugfs_create_file("device_list", 0444, hdev->debugfs, hdev, |
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&device_list_fops); |
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debugfs_create_file("blacklist", 0444, hdev->debugfs, hdev, |
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&blacklist_fops); |
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debugfs_create_file("blocked_keys", 0444, hdev->debugfs, hdev, |
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&blocked_keys_fops); |
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debugfs_create_file("uuids", 0444, hdev->debugfs, hdev, &uuids_fops); |
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debugfs_create_file("remote_oob", 0400, hdev->debugfs, hdev, |
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&remote_oob_fops); |
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debugfs_create_file("conn_info_min_age", 0644, hdev->debugfs, hdev, |
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&conn_info_min_age_fops); |
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debugfs_create_file("conn_info_max_age", 0644, hdev->debugfs, hdev, |
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&conn_info_max_age_fops); |
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if (lmp_ssp_capable(hdev) || lmp_le_capable(hdev)) |
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debugfs_create_file("use_debug_keys", 0444, hdev->debugfs, |
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hdev, &use_debug_keys_fops); |
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if (lmp_sc_capable(hdev) || lmp_le_capable(hdev)) |
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debugfs_create_file("sc_only_mode", 0444, hdev->debugfs, |
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hdev, &sc_only_mode_fops); |
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if (hdev->hw_info) |
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debugfs_create_file("hardware_info", 0444, hdev->debugfs, |
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hdev, &hardware_info_fops); |
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if (hdev->fw_info) |
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debugfs_create_file("firmware_info", 0444, hdev->debugfs, |
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hdev, &firmware_info_fops); |
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} |
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static int inquiry_cache_show(struct seq_file *f, void *p) |
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{ |
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struct hci_dev *hdev = f->private; |
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struct discovery_state *cache = &hdev->discovery; |
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struct inquiry_entry *e; |
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hci_dev_lock(hdev); |
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list_for_each_entry(e, &cache->all, all) { |
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struct inquiry_data *data = &e->data; |
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seq_printf(f, "%pMR %d %d %d 0x%.2x%.2x%.2x 0x%.4x %d %d %u\n", |
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&data->bdaddr, |
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data->pscan_rep_mode, data->pscan_period_mode, |
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data->pscan_mode, data->dev_class[2], |
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data->dev_class[1], data->dev_class[0], |
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__le16_to_cpu(data->clock_offset), |
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data->rssi, data->ssp_mode, e->timestamp); |
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} |
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hci_dev_unlock(hdev); |
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return 0; |
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} |
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DEFINE_SHOW_ATTRIBUTE(inquiry_cache); |
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static int link_keys_show(struct seq_file *f, void *ptr) |
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{ |
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struct hci_dev *hdev = f->private; |
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struct link_key *key; |
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rcu_read_lock(); |
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list_for_each_entry_rcu(key, &hdev->link_keys, list) |
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seq_printf(f, "%pMR %u %*phN %u\n", &key->bdaddr, key->type, |
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HCI_LINK_KEY_SIZE, key->val, key->pin_len); |
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rcu_read_unlock(); |
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return 0; |
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} |
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DEFINE_SHOW_ATTRIBUTE(link_keys); |
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static int dev_class_show(struct seq_file *f, void *ptr) |
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{ |
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struct hci_dev *hdev = f->private; |
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hci_dev_lock(hdev); |
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seq_printf(f, "0x%.2x%.2x%.2x\n", hdev->dev_class[2], |
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hdev->dev_class[1], hdev->dev_class[0]); |
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hci_dev_unlock(hdev); |
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return 0; |
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} |
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DEFINE_SHOW_ATTRIBUTE(dev_class); |
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static int voice_setting_get(void *data, u64 *val) |
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{ |
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struct hci_dev *hdev = data; |
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hci_dev_lock(hdev); |
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*val = hdev->voice_setting; |
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hci_dev_unlock(hdev); |
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return 0; |
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} |
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DEFINE_DEBUGFS_ATTRIBUTE(voice_setting_fops, voice_setting_get, |
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NULL, "0x%4.4llx\n"); |
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static ssize_t ssp_debug_mode_read(struct file *file, char __user *user_buf, |
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size_t count, loff_t *ppos) |
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{ |
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struct hci_dev *hdev = file->private_data; |
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char buf[3]; |
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buf[0] = hdev->ssp_debug_mode ? 'Y' : 'N'; |
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buf[1] = '\n'; |
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buf[2] = '\0'; |
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return simple_read_from_buffer(user_buf, count, ppos, buf, 2); |
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} |
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static const struct file_operations ssp_debug_mode_fops = { |
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.open = simple_open, |
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.read = ssp_debug_mode_read, |
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.llseek = default_llseek, |
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}; |
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static int auto_accept_delay_set(void *data, u64 val) |
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{ |
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struct hci_dev *hdev = data; |
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hci_dev_lock(hdev); |
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hdev->auto_accept_delay = val; |
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hci_dev_unlock(hdev); |
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return 0; |
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} |
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static int min_encrypt_key_size_set(void *data, u64 val) |
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{ |
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struct hci_dev *hdev = data; |
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if (val < 1 || val > 16) |
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return -EINVAL; |
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hci_dev_lock(hdev); |
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hdev->min_enc_key_size = val; |
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hci_dev_unlock(hdev); |
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return 0; |
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} |
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static int min_encrypt_key_size_get(void *data, u64 *val) |
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{ |
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struct hci_dev *hdev = data; |
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|
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hci_dev_lock(hdev); |
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*val = hdev->min_enc_key_size; |
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hci_dev_unlock(hdev); |
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return 0; |
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} |
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DEFINE_DEBUGFS_ATTRIBUTE(min_encrypt_key_size_fops, |
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min_encrypt_key_size_get, |
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min_encrypt_key_size_set, "%llu\n"); |
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|
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static int auto_accept_delay_get(void *data, u64 *val) |
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{ |
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struct hci_dev *hdev = data; |
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|
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hci_dev_lock(hdev); |
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*val = hdev->auto_accept_delay; |
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hci_dev_unlock(hdev); |
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return 0; |
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} |
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|
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DEFINE_DEBUGFS_ATTRIBUTE(auto_accept_delay_fops, auto_accept_delay_get, |
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auto_accept_delay_set, "%llu\n"); |
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|
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static ssize_t force_bredr_smp_read(struct file *file, |
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char __user *user_buf, |
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size_t count, loff_t *ppos) |
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{ |
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struct hci_dev *hdev = file->private_data; |
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char buf[3]; |
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|
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buf[0] = hci_dev_test_flag(hdev, HCI_FORCE_BREDR_SMP) ? 'Y' : 'N'; |
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buf[1] = '\n'; |
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buf[2] = '\0'; |
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return simple_read_from_buffer(user_buf, count, ppos, buf, 2); |
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} |
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|
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static ssize_t force_bredr_smp_write(struct file *file, |
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const char __user *user_buf, |
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size_t count, loff_t *ppos) |
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{ |
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struct hci_dev *hdev = file->private_data; |
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bool enable; |
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int err; |
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|
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err = kstrtobool_from_user(user_buf, count, &enable); |
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if (err) |
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return err; |
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|
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err = smp_force_bredr(hdev, enable); |
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if (err) |
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return err; |
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|
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return count; |
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} |
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|
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static const struct file_operations force_bredr_smp_fops = { |
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.open = simple_open, |
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.read = force_bredr_smp_read, |
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.write = force_bredr_smp_write, |
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.llseek = default_llseek, |
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}; |
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|
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static int idle_timeout_set(void *data, u64 val) |
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{ |
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struct hci_dev *hdev = data; |
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|
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if (val != 0 && (val < 500 || val > 3600000)) |
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return -EINVAL; |
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|
|
hci_dev_lock(hdev); |
|
hdev->idle_timeout = val; |
|
hci_dev_unlock(hdev); |
|
|
|
return 0; |
|
} |
|
|
|
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; |
|
} |
|
|
|
DEFINE_DEBUGFS_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; |
|
} |
|
|
|
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; |
|
} |
|
|
|
DEFINE_DEBUGFS_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; |
|
} |
|
|
|
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; |
|
} |
|
|
|
DEFINE_DEBUGFS_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 the controller does not support BR/EDR Secure Connections |
|
* feature, then the BR/EDR SMP channel shall not be present. |
|
* |
|
* To test this with Bluetooth 4.0 controllers, create a debugfs |
|
* switch that allows forcing BR/EDR SMP support and accepting |
|
* cross-transport pairing on non-AES encrypted connections. |
|
*/ |
|
if (!lmp_sc_capable(hdev)) |
|
debugfs_create_file("force_bredr_smp", 0644, hdev->debugfs, |
|
hdev, &force_bredr_smp_fops); |
|
|
|
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); |
|
} |
|
|
|
if (lmp_sniff_capable(hdev)) { |
|
debugfs_create_file("idle_timeout", 0644, hdev->debugfs, |
|
hdev, &idle_timeout_fops); |
|
debugfs_create_file("sniff_min_interval", 0644, hdev->debugfs, |
|
hdev, &sniff_min_interval_fops); |
|
debugfs_create_file("sniff_max_interval", 0644, hdev->debugfs, |
|
hdev, &sniff_max_interval_fops); |
|
} |
|
} |
|
|
|
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); |
|
|
|
hci_copy_identity_address(hdev, &addr, &addr_type); |
|
|
|
seq_printf(f, "%pMR (type %u) %*phN %pMR\n", &addr, addr_type, |
|
16, hdev->irk, &hdev->rpa); |
|
|
|
hci_dev_unlock(hdev); |
|
|
|
return 0; |
|
} |
|
|
|
DEFINE_SHOW_ATTRIBUTE(identity); |
|
|
|
static int rpa_timeout_set(void *data, u64 val) |
|
{ |
|
struct hci_dev *hdev = data; |
|
|
|
/* Require the RPA timeout to be at least 30 seconds and at most |
|
* 24 hours. |
|
*/ |
|
if (val < 30 || val > (60 * 60 * 24)) |
|
return -EINVAL; |
|
|
|
hci_dev_lock(hdev); |
|
hdev->rpa_timeout = val; |
|
hci_dev_unlock(hdev); |
|
|
|
return 0; |
|
} |
|
|
|
static int rpa_timeout_get(void *data, u64 *val) |
|
{ |
|
struct hci_dev *hdev = data; |
|
|
|
hci_dev_lock(hdev); |
|
*val = hdev->rpa_timeout; |
|
hci_dev_unlock(hdev); |
|
|
|
return 0; |
|
} |
|
|
|
DEFINE_DEBUGFS_ATTRIBUTE(rpa_timeout_fops, rpa_timeout_get, |
|
rpa_timeout_set, "%llu\n"); |
|
|
|
static int random_address_show(struct seq_file *f, void *p) |
|
{ |
|
struct hci_dev *hdev = f->private; |
|
|
|
hci_dev_lock(hdev); |
|
seq_printf(f, "%pMR\n", &hdev->random_addr); |
|
hci_dev_unlock(hdev); |
|
|
|
return 0; |
|
} |
|
|
|
DEFINE_SHOW_ATTRIBUTE(random_address); |
|
|
|
static int static_address_show(struct seq_file *f, void *p) |
|
{ |
|
struct hci_dev *hdev = f->private; |
|
|
|
hci_dev_lock(hdev); |
|
seq_printf(f, "%pMR\n", &hdev->static_addr); |
|
hci_dev_unlock(hdev); |
|
|
|
return 0; |
|
} |
|
|
|
DEFINE_SHOW_ATTRIBUTE(static_address); |
|
|
|
static ssize_t force_static_address_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_FORCE_STATIC_ADDR) ? 'Y' : 'N'; |
|
buf[1] = '\n'; |
|
buf[2] = '\0'; |
|
return simple_read_from_buffer(user_buf, count, ppos, buf, 2); |
|
} |
|
|
|
static ssize_t force_static_address_write(struct file *file, |
|
const char __user *user_buf, |
|
size_t count, loff_t *ppos) |
|
{ |
|
struct hci_dev *hdev = file->private_data; |
|
bool enable; |
|
int err; |
|
|
|
if (test_bit(HCI_UP, &hdev->flags)) |
|
return -EBUSY; |
|
|
|
err = kstrtobool_from_user(user_buf, count, &enable); |
|
if (err) |
|
return err; |
|
|
|
if (enable == hci_dev_test_flag(hdev, HCI_FORCE_STATIC_ADDR)) |
|
return -EALREADY; |
|
|
|
hci_dev_change_flag(hdev, HCI_FORCE_STATIC_ADDR); |
|
|
|
return count; |
|
} |
|
|
|
static const struct file_operations force_static_address_fops = { |
|
.open = simple_open, |
|
.read = force_static_address_read, |
|
.write = force_static_address_write, |
|
.llseek = default_llseek, |
|
}; |
|
|
|
static int white_list_show(struct seq_file *f, void *ptr) |
|
{ |
|
struct hci_dev *hdev = f->private; |
|
struct bdaddr_list *b; |
|
|
|
hci_dev_lock(hdev); |
|
list_for_each_entry(b, &hdev->le_accept_list, list) |
|
seq_printf(f, "%pMR (type %u)\n", &b->bdaddr, b->bdaddr_type); |
|
hci_dev_unlock(hdev); |
|
|
|
return 0; |
|
} |
|
|
|
DEFINE_SHOW_ATTRIBUTE(white_list); |
|
|
|
static int resolv_list_show(struct seq_file *f, void *ptr) |
|
{ |
|
struct hci_dev *hdev = f->private; |
|
struct bdaddr_list *b; |
|
|
|
hci_dev_lock(hdev); |
|
list_for_each_entry(b, &hdev->le_resolv_list, list) |
|
seq_printf(f, "%pMR (type %u)\n", &b->bdaddr, b->bdaddr_type); |
|
hci_dev_unlock(hdev); |
|
|
|
return 0; |
|
} |
|
|
|
DEFINE_SHOW_ATTRIBUTE(resolv_list); |
|
|
|
static int identity_resolving_keys_show(struct seq_file *f, void *ptr) |
|
{ |
|
struct hci_dev *hdev = f->private; |
|
struct smp_irk *irk; |
|
|
|
rcu_read_lock(); |
|
list_for_each_entry_rcu(irk, &hdev->identity_resolving_keys, list) { |
|
seq_printf(f, "%pMR (type %u) %*phN %pMR\n", |
|
&irk->bdaddr, irk->addr_type, |
|
16, irk->val, &irk->rpa); |
|
} |
|
rcu_read_unlock(); |
|
|
|
return 0; |
|
} |
|
|
|
DEFINE_SHOW_ATTRIBUTE(identity_resolving_keys); |
|
|
|
static int long_term_keys_show(struct seq_file *f, void *ptr) |
|
{ |
|
struct hci_dev *hdev = f->private; |
|
struct smp_ltk *ltk; |
|
|
|
rcu_read_lock(); |
|
list_for_each_entry_rcu(ltk, &hdev->long_term_keys, list) |
|
seq_printf(f, "%pMR (type %u) %u 0x%02x %u %.4x %.16llx %*phN\n", |
|
<k->bdaddr, ltk->bdaddr_type, ltk->authenticated, |
|
ltk->type, ltk->enc_size, __le16_to_cpu(ltk->ediv), |
|
__le64_to_cpu(ltk->rand), 16, ltk->val); |
|
rcu_read_unlock(); |
|
|
|
return 0; |
|
} |
|
|
|
DEFINE_SHOW_ATTRIBUTE(long_term_keys); |
|
|
|
static int conn_min_interval_set(void *data, u64 val) |
|
{ |
|
struct hci_dev *hdev = data; |
|
|
|
if (val < 0x0006 || val > 0x0c80 || val > hdev->le_conn_max_interval) |
|
return -EINVAL; |
|
|
|
hci_dev_lock(hdev); |
|
hdev->le_conn_min_interval = val; |
|
hci_dev_unlock(hdev); |
|
|
|
return 0; |
|
} |
|
|
|
static int conn_min_interval_get(void *data, u64 *val) |
|
{ |
|
struct hci_dev *hdev = data; |
|
|
|
hci_dev_lock(hdev); |
|
*val = hdev->le_conn_min_interval; |
|
hci_dev_unlock(hdev); |
|
|
|
return 0; |
|
} |
|
|
|
DEFINE_DEBUGFS_ATTRIBUTE(conn_min_interval_fops, conn_min_interval_get, |
|
conn_min_interval_set, "%llu\n"); |
|
|
|
static int conn_max_interval_set(void *data, u64 val) |
|
{ |
|
struct hci_dev *hdev = data; |
|
|
|
if (val < 0x0006 || val > 0x0c80 || val < hdev->le_conn_min_interval) |
|
return -EINVAL; |
|
|
|
hci_dev_lock(hdev); |
|
hdev->le_conn_max_interval = val; |
|
hci_dev_unlock(hdev); |
|
|
|
return 0; |
|
} |
|
|
|
static int conn_max_interval_get(void *data, u64 *val) |
|
{ |
|
struct hci_dev *hdev = data; |
|
|
|
hci_dev_lock(hdev); |
|
*val = hdev->le_conn_max_interval; |
|
hci_dev_unlock(hdev); |
|
|
|
return 0; |
|
} |
|
|
|
DEFINE_DEBUGFS_ATTRIBUTE(conn_max_interval_fops, conn_max_interval_get, |
|
conn_max_interval_set, "%llu\n"); |
|
|
|
static int conn_latency_set(void *data, u64 val) |
|
{ |
|
struct hci_dev *hdev = data; |
|
|
|
if (val > 0x01f3) |
|
return -EINVAL; |
|
|
|
hci_dev_lock(hdev); |
|
hdev->le_conn_latency = val; |
|
hci_dev_unlock(hdev); |
|
|
|
return 0; |
|
} |
|
|
|
static int conn_latency_get(void *data, u64 *val) |
|
{ |
|
struct hci_dev *hdev = data; |
|
|
|
hci_dev_lock(hdev); |
|
*val = hdev->le_conn_latency; |
|
hci_dev_unlock(hdev); |
|
|
|
return 0; |
|
} |
|
|
|
DEFINE_DEBUGFS_ATTRIBUTE(conn_latency_fops, conn_latency_get, |
|
conn_latency_set, "%llu\n"); |
|
|
|
static int supervision_timeout_set(void *data, u64 val) |
|
{ |
|
struct hci_dev *hdev = data; |
|
|
|
if (val < 0x000a || val > 0x0c80) |
|
return -EINVAL; |
|
|
|
hci_dev_lock(hdev); |
|
hdev->le_supv_timeout = val; |
|
hci_dev_unlock(hdev); |
|
|
|
return 0; |
|
} |
|
|
|
static int supervision_timeout_get(void *data, u64 *val) |
|
{ |
|
struct hci_dev *hdev = data; |
|
|
|
hci_dev_lock(hdev); |
|
*val = hdev->le_supv_timeout; |
|
hci_dev_unlock(hdev); |
|
|
|
return 0; |
|
} |
|
|
|
DEFINE_DEBUGFS_ATTRIBUTE(supervision_timeout_fops, supervision_timeout_get, |
|
supervision_timeout_set, "%llu\n"); |
|
|
|
static int adv_channel_map_set(void *data, u64 val) |
|
{ |
|
struct hci_dev *hdev = data; |
|
|
|
if (val < 0x01 || val > 0x07) |
|
return -EINVAL; |
|
|
|
hci_dev_lock(hdev); |
|
hdev->le_adv_channel_map = val; |
|
hci_dev_unlock(hdev); |
|
|
|
return 0; |
|
} |
|
|
|
static int adv_channel_map_get(void *data, u64 *val) |
|
{ |
|
struct hci_dev *hdev = data; |
|
|
|
hci_dev_lock(hdev); |
|
*val = hdev->le_adv_channel_map; |
|
hci_dev_unlock(hdev); |
|
|
|
return 0; |
|
} |
|
|
|
DEFINE_DEBUGFS_ATTRIBUTE(adv_channel_map_fops, adv_channel_map_get, |
|
adv_channel_map_set, "%llu\n"); |
|
|
|
static int adv_min_interval_set(void *data, u64 val) |
|
{ |
|
struct hci_dev *hdev = data; |
|
|
|
if (val < 0x0020 || val > 0x4000 || val > hdev->le_adv_max_interval) |
|
return -EINVAL; |
|
|
|
hci_dev_lock(hdev); |
|
hdev->le_adv_min_interval = val; |
|
hci_dev_unlock(hdev); |
|
|
|
return 0; |
|
} |
|
|
|
static int adv_min_interval_get(void *data, u64 *val) |
|
{ |
|
struct hci_dev *hdev = data; |
|
|
|
hci_dev_lock(hdev); |
|
*val = hdev->le_adv_min_interval; |
|
hci_dev_unlock(hdev); |
|
|
|
return 0; |
|
} |
|
|
|
DEFINE_DEBUGFS_ATTRIBUTE(adv_min_interval_fops, adv_min_interval_get, |
|
adv_min_interval_set, "%llu\n"); |
|
|
|
static int adv_max_interval_set(void *data, u64 val) |
|
{ |
|
struct hci_dev *hdev = data; |
|
|
|
if (val < 0x0020 || val > 0x4000 || val < hdev->le_adv_min_interval) |
|
return -EINVAL; |
|
|
|
hci_dev_lock(hdev); |
|
hdev->le_adv_max_interval = val; |
|
hci_dev_unlock(hdev); |
|
|
|
return 0; |
|
} |
|
|
|
static int adv_max_interval_get(void *data, u64 *val) |
|
{ |
|
struct hci_dev *hdev = data; |
|
|
|
hci_dev_lock(hdev); |
|
*val = hdev->le_adv_max_interval; |
|
hci_dev_unlock(hdev); |
|
|
|
return 0; |
|
} |
|
|
|
DEFINE_DEBUGFS_ATTRIBUTE(adv_max_interval_fops, adv_max_interval_get, |
|
adv_max_interval_set, "%llu\n"); |
|
|
|
static int min_key_size_set(void *data, u64 val) |
|
{ |
|
struct hci_dev *hdev = data; |
|
|
|
if (val > hdev->le_max_key_size || val < SMP_MIN_ENC_KEY_SIZE) |
|
return -EINVAL; |
|
|
|
hci_dev_lock(hdev); |
|
hdev->le_min_key_size = val; |
|
hci_dev_unlock(hdev); |
|
|
|
return 0; |
|
} |
|
|
|
static int min_key_size_get(void *data, u64 *val) |
|
{ |
|
struct hci_dev *hdev = data; |
|
|
|
hci_dev_lock(hdev); |
|
*val = hdev->le_min_key_size; |
|
hci_dev_unlock(hdev); |
|
|
|
return 0; |
|
} |
|
|
|
DEFINE_DEBUGFS_ATTRIBUTE(min_key_size_fops, min_key_size_get, |
|
min_key_size_set, "%llu\n"); |
|
|
|
static int max_key_size_set(void *data, u64 val) |
|
{ |
|
struct hci_dev *hdev = data; |
|
|
|
if (val > SMP_MAX_ENC_KEY_SIZE || val < hdev->le_min_key_size) |
|
return -EINVAL; |
|
|
|
hci_dev_lock(hdev); |
|
hdev->le_max_key_size = val; |
|
hci_dev_unlock(hdev); |
|
|
|
return 0; |
|
} |
|
|
|
static int max_key_size_get(void *data, u64 *val) |
|
{ |
|
struct hci_dev *hdev = data; |
|
|
|
hci_dev_lock(hdev); |
|
*val = hdev->le_max_key_size; |
|
hci_dev_unlock(hdev); |
|
|
|
return 0; |
|
} |
|
|
|
DEFINE_DEBUGFS_ATTRIBUTE(max_key_size_fops, max_key_size_get, |
|
max_key_size_set, "%llu\n"); |
|
|
|
static int auth_payload_timeout_set(void *data, u64 val) |
|
{ |
|
struct hci_dev *hdev = data; |
|
|
|
if (val < 0x0001 || val > 0xffff) |
|
return -EINVAL; |
|
|
|
hci_dev_lock(hdev); |
|
hdev->auth_payload_timeout = val; |
|
hci_dev_unlock(hdev); |
|
|
|
return 0; |
|
} |
|
|
|
static int auth_payload_timeout_get(void *data, u64 *val) |
|
{ |
|
struct hci_dev *hdev = data; |
|
|
|
hci_dev_lock(hdev); |
|
*val = hdev->auth_payload_timeout; |
|
hci_dev_unlock(hdev); |
|
|
|
return 0; |
|
} |
|
|
|
DEFINE_DEBUGFS_ATTRIBUTE(auth_payload_timeout_fops, |
|
auth_payload_timeout_get, |
|
auth_payload_timeout_set, "%llu\n"); |
|
|
|
static ssize_t force_no_mitm_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_FORCE_NO_MITM) ? 'Y' : 'N'; |
|
buf[1] = '\n'; |
|
buf[2] = '\0'; |
|
return simple_read_from_buffer(user_buf, count, ppos, buf, 2); |
|
} |
|
|
|
static ssize_t force_no_mitm_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 (copy_from_user(buf, user_buf, buf_size)) |
|
return -EFAULT; |
|
|
|
buf[buf_size] = '\0'; |
|
if (strtobool(buf, &enable)) |
|
return -EINVAL; |
|
|
|
if (enable == hci_dev_test_flag(hdev, HCI_FORCE_NO_MITM)) |
|
return -EALREADY; |
|
|
|
hci_dev_change_flag(hdev, HCI_FORCE_NO_MITM); |
|
|
|
return count; |
|
} |
|
|
|
static const struct file_operations force_no_mitm_fops = { |
|
.open = simple_open, |
|
.read = force_no_mitm_read, |
|
.write = force_no_mitm_write, |
|
.llseek = default_llseek, |
|
}; |
|
|
|
DEFINE_QUIRK_ATTRIBUTE(quirk_strict_duplicate_filter, |
|
HCI_QUIRK_STRICT_DUPLICATE_FILTER); |
|
DEFINE_QUIRK_ATTRIBUTE(quirk_simultaneous_discovery, |
|
HCI_QUIRK_SIMULTANEOUS_DISCOVERY); |
|
|
|
void hci_debugfs_create_le(struct hci_dev *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); |
|
|
|
/* For controllers with a public address, provide a debug |
|
* option to force the usage of the configured static |
|
* address. By default the public address is used. |
|
*/ |
|
if (bacmp(&hdev->bdaddr, BDADDR_ANY)) |
|
debugfs_create_file("force_static_address", 0644, |
|
hdev->debugfs, hdev, |
|
&force_static_address_fops); |
|
|
|
debugfs_create_u8("white_list_size", 0444, hdev->debugfs, |
|
&hdev->le_accept_list_size); |
|
debugfs_create_file("white_list", 0444, hdev->debugfs, hdev, |
|
&white_list_fops); |
|
debugfs_create_u8("resolv_list_size", 0444, hdev->debugfs, |
|
&hdev->le_resolv_list_size); |
|
debugfs_create_file("resolv_list", 0444, hdev->debugfs, hdev, |
|
&resolv_list_fops); |
|
debugfs_create_file("identity_resolving_keys", 0400, hdev->debugfs, |
|
hdev, &identity_resolving_keys_fops); |
|
debugfs_create_file("long_term_keys", 0400, hdev->debugfs, hdev, |
|
&long_term_keys_fops); |
|
debugfs_create_file("conn_min_interval", 0644, hdev->debugfs, hdev, |
|
&conn_min_interval_fops); |
|
debugfs_create_file("conn_max_interval", 0644, hdev->debugfs, hdev, |
|
&conn_max_interval_fops); |
|
debugfs_create_file("conn_latency", 0644, hdev->debugfs, hdev, |
|
&conn_latency_fops); |
|
debugfs_create_file("supervision_timeout", 0644, hdev->debugfs, hdev, |
|
&supervision_timeout_fops); |
|
debugfs_create_file("adv_channel_map", 0644, hdev->debugfs, hdev, |
|
&adv_channel_map_fops); |
|
debugfs_create_file("adv_min_interval", 0644, hdev->debugfs, hdev, |
|
&adv_min_interval_fops); |
|
debugfs_create_file("adv_max_interval", 0644, hdev->debugfs, hdev, |
|
&adv_max_interval_fops); |
|
debugfs_create_u16("discov_interleaved_timeout", 0644, hdev->debugfs, |
|
&hdev->discov_interleaved_timeout); |
|
debugfs_create_file("min_key_size", 0644, hdev->debugfs, hdev, |
|
&min_key_size_fops); |
|
debugfs_create_file("max_key_size", 0644, hdev->debugfs, hdev, |
|
&max_key_size_fops); |
|
debugfs_create_file("auth_payload_timeout", 0644, hdev->debugfs, hdev, |
|
&auth_payload_timeout_fops); |
|
debugfs_create_file("force_no_mitm", 0644, hdev->debugfs, hdev, |
|
&force_no_mitm_fops); |
|
|
|
debugfs_create_file("quirk_strict_duplicate_filter", 0644, |
|
hdev->debugfs, hdev, |
|
&quirk_strict_duplicate_filter_fops); |
|
debugfs_create_file("quirk_simultaneous_discovery", 0644, |
|
hdev->debugfs, hdev, |
|
&quirk_simultaneous_discovery_fops); |
|
} |
|
|
|
void hci_debugfs_create_conn(struct hci_conn *conn) |
|
{ |
|
struct hci_dev *hdev = conn->hdev; |
|
char name[6]; |
|
|
|
if (IS_ERR_OR_NULL(hdev->debugfs)) |
|
return; |
|
|
|
snprintf(name, sizeof(name), "%u", conn->handle); |
|
conn->debugfs = debugfs_create_dir(name, hdev->debugfs); |
|
}
|
|
|