#include <net/bluetooth/l2cap.h>
#include <net/bluetooth/mgmt.h>
+#include "hci_request.h"
+#include "hci_debugfs.h"
#include "smp.h"
static void hci_rx_work(struct work_struct *work);
/* HCI callback list */
LIST_HEAD(hci_cb_list);
-DEFINE_RWLOCK(hci_cb_list_lock);
+DEFINE_MUTEX(hci_cb_list_lock);
/* HCI ID Numbering */
static DEFINE_IDA(hci_index_ida);
.llseek = default_llseek,
};
-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);
-}
-
-static const struct file_operations features_fops = {
- .open = features_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;
-}
-
-static int blacklist_open(struct inode *inode, struct file *file)
-{
- return single_open(file, blacklist_show, inode->i_private);
-}
-
-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;
-}
-
-static int uuids_open(struct inode *inode, struct file *file)
-{
- return single_open(file, uuids_show, inode->i_private);
-}
-
-static const struct file_operations uuids_fops = {
- .open = uuids_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-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;
-}
-
-static int inquiry_cache_open(struct inode *inode, struct file *file)
-{
- return single_open(file, inquiry_cache_show, inode->i_private);
-}
-
-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;
-}
-
-static int link_keys_open(struct inode *inode, struct file *file)
-{
- return single_open(file, link_keys_show, inode->i_private);
-}
-
-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;
-}
-
-static int dev_class_open(struct inode *inode, struct file *file)
-{
- return single_open(file, dev_class_show, inode->i_private);
-}
-
-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;
-}
-
-DEFINE_SIMPLE_ATTRIBUTE(voice_setting_fops, voice_setting_get,
- NULL, "0x%4.4llx\n");
-
-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;
-}
-
-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;
-}
-
-DEFINE_SIMPLE_ATTRIBUTE(auto_accept_delay_fops, auto_accept_delay_get,
- auto_accept_delay_set, "%llu\n");
-
-static ssize_t force_sc_support_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_FORCE_SC, &hdev->dbg_flags) ? 'Y': 'N';
- buf[1] = '\n';
- buf[2] = '\0';
- return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
-}
-
-static ssize_t force_sc_support_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(HCI_FORCE_SC, &hdev->dbg_flags))
- return -EALREADY;
-
- change_bit(HCI_FORCE_SC, &hdev->dbg_flags);
-
- return count;
-}
-
-static const struct file_operations force_sc_support_fops = {
- .open = simple_open,
- .read = force_sc_support_read,
- .write = force_sc_support_write,
- .llseek = default_llseek,
-};
-
-static ssize_t force_lesc_support_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_FORCE_LESC, &hdev->dbg_flags) ? 'Y': 'N';
- buf[1] = '\n';
- buf[2] = '\0';
- return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
-}
-
-static ssize_t force_lesc_support_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 == test_bit(HCI_FORCE_LESC, &hdev->dbg_flags))
- return -EALREADY;
-
- change_bit(HCI_FORCE_LESC, &hdev->dbg_flags);
-
- return count;
-}
-
-static const struct file_operations force_lesc_support_fops = {
- .open = simple_open,
- .read = force_lesc_support_read,
- .write = force_lesc_support_write,
- .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] = 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;
-
- if (val != 0 && (val < 500 || val > 3600000))
- return -EINVAL;
-
- 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_SIMPLE_ATTRIBUTE(idle_timeout_fops, idle_timeout_get,
- idle_timeout_set, "%llu\n");
-
-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_SIMPLE_ATTRIBUTE(rpa_timeout_fops, rpa_timeout_get,
- rpa_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_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;
-}
-
-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_SIMPLE_ATTRIBUTE(sniff_max_interval_fops, sniff_max_interval_get,
- sniff_max_interval_set, "%llu\n");
-
-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;
-}
-
-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;
-}
-
-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;
-}
-
-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;
-}
-
-DEFINE_SIMPLE_ATTRIBUTE(conn_info_max_age_fops, conn_info_max_age_get,
- conn_info_max_age_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);
-
- 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;
-}
-
-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;
-
- hci_dev_lock(hdev);
- seq_printf(f, "%pMR\n", &hdev->random_addr);
- hci_dev_unlock(hdev);
-
- return 0;
-}
-
-static int random_address_open(struct inode *inode, struct file *file)
-{
- return single_open(file, random_address_show, inode->i_private);
-}
-
-static const struct file_operations random_address_fops = {
- .open = random_address_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-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;
-}
-
-static int static_address_open(struct inode *inode, struct file *file)
-{
- return single_open(file, static_address_show, inode->i_private);
-}
-
-static const struct file_operations static_address_fops = {
- .open = static_address_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-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] = test_bit(HCI_FORCE_STATIC_ADDR, &hdev->dbg_flags) ? '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;
- 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(HCI_FORCE_STATIC_ADDR, &hdev->dbg_flags))
- return -EALREADY;
-
- change_bit(HCI_FORCE_STATIC_ADDR, &hdev->dbg_flags);
-
- 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_white_list, list)
- seq_printf(f, "%pMR (type %u)\n", &b->bdaddr, b->bdaddr_type);
- hci_dev_unlock(hdev);
-
- return 0;
-}
-
-static int white_list_open(struct inode *inode, struct file *file)
-{
- return single_open(file, white_list_show, inode->i_private);
-}
-
-static const struct file_operations white_list_fops = {
- .open = white_list_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-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;
-}
-
-static int identity_resolving_keys_open(struct inode *inode, struct file *file)
-{
- return single_open(file, identity_resolving_keys_show,
- inode->i_private);
-}
-
-static const struct file_operations identity_resolving_keys_fops = {
- .open = identity_resolving_keys_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-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;
-}
-
-static int long_term_keys_open(struct inode *inode, struct file *file)
-{
- return single_open(file, long_term_keys_show, inode->i_private);
-}
-
-static const struct file_operations long_term_keys_fops = {
- .open = long_term_keys_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-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_SIMPLE_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_SIMPLE_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_SIMPLE_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_SIMPLE_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_SIMPLE_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_SIMPLE_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_SIMPLE_ATTRIBUTE(adv_max_interval_fops, adv_max_interval_get,
- adv_max_interval_set, "%llu\n");
-
-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;
-}
-
-static int device_list_open(struct inode *inode, struct file *file)
-{
- return single_open(file, device_list_show, inode->i_private);
-}
-
-static const struct file_operations device_list_fops = {
- .open = device_list_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
/* ---- HCI requests ---- */
-static void hci_req_sync_complete(struct hci_dev *hdev, u8 result)
+static void hci_req_sync_complete(struct hci_dev *hdev, u8 result, u16 opcode)
{
BT_DBG("%s result 0x%2.2x", hdev->name, result);
hci_req_add(req, HCI_OP_READ_BD_ADDR, 0, NULL);
}
-static void amp_init(struct hci_request *req)
+static void amp_init1(struct hci_request *req)
{
req->hdev->flow_ctl_mode = HCI_FLOW_CTL_MODE_BLOCK_BASED;
/* Read Local Supported Commands */
hci_req_add(req, HCI_OP_READ_LOCAL_COMMANDS, 0, NULL);
- /* Read Local Supported Features */
- hci_req_add(req, HCI_OP_READ_LOCAL_FEATURES, 0, NULL);
-
/* Read Local AMP Info */
hci_req_add(req, HCI_OP_READ_LOCAL_AMP_INFO, 0, NULL);
hci_req_add(req, HCI_OP_READ_LOCATION_DATA, 0, NULL);
}
+static void amp_init2(struct hci_request *req)
+{
+ /* Read Local Supported Features. Not all AMP controllers
+ * support this so it's placed conditionally in the second
+ * stage init.
+ */
+ if (req->hdev->commands[14] & 0x20)
+ hci_req_add(req, HCI_OP_READ_LOCAL_FEATURES, 0, NULL);
+}
+
static void hci_init1_req(struct hci_request *req, unsigned long opt)
{
struct hci_dev *hdev = req->hdev;
break;
case HCI_AMP:
- amp_init(req);
+ amp_init1(req);
break;
default:
set_bit(HCI_LE_ENABLED, &hdev->dev_flags);
}
-static u8 hci_get_inquiry_mode(struct hci_dev *hdev)
-{
- if (lmp_ext_inq_capable(hdev))
- return 0x02;
-
- if (lmp_inq_rssi_capable(hdev))
- return 0x01;
-
- if (hdev->manufacturer == 11 && hdev->hci_rev == 0x00 &&
- hdev->lmp_subver == 0x0757)
- return 0x01;
-
- if (hdev->manufacturer == 15) {
- if (hdev->hci_rev == 0x03 && hdev->lmp_subver == 0x6963)
- return 0x01;
- if (hdev->hci_rev == 0x09 && hdev->lmp_subver == 0x6963)
- return 0x01;
- if (hdev->hci_rev == 0x00 && hdev->lmp_subver == 0x6965)
- return 0x01;
- }
-
- if (hdev->manufacturer == 31 && hdev->hci_rev == 0x2005 &&
- hdev->lmp_subver == 0x1805)
- return 0x01;
-
- return 0x00;
-}
-
-static void hci_setup_inquiry_mode(struct hci_request *req)
-{
- u8 mode;
-
- mode = hci_get_inquiry_mode(req->hdev);
-
- hci_req_add(req, HCI_OP_WRITE_INQUIRY_MODE, 1, &mode);
-}
-
static void hci_setup_event_mask(struct hci_request *req)
{
struct hci_dev *hdev = req->hdev;
{
struct hci_dev *hdev = req->hdev;
+ if (hdev->dev_type == HCI_AMP)
+ return amp_init2(req);
+
if (lmp_bredr_capable(hdev))
bredr_setup(req);
else
if (lmp_le_capable(hdev))
le_setup(req);
- /* AVM Berlin (31), aka "BlueFRITZ!", doesn't support the read
- * local supported commands HCI command.
+ /* All Bluetooth 1.2 and later controllers should support the
+ * HCI command for reading the local supported commands.
+ *
+ * Unfortunately some controllers indicate Bluetooth 1.2 support,
+ * but do not have support for this command. If that is the case,
+ * the driver can quirk the behavior and skip reading the local
+ * supported commands.
*/
- if (hdev->manufacturer != 31 && hdev->hci_ver > BLUETOOTH_VER_1_1)
+ if (hdev->hci_ver > BLUETOOTH_VER_1_1 &&
+ !test_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks))
hci_req_add(req, HCI_OP_READ_LOCAL_COMMANDS, 0, NULL);
if (lmp_ssp_capable(hdev)) {
if (test_bit(HCI_SSP_ENABLED, &hdev->dev_flags)) {
u8 mode = 0x01;
+
hci_req_add(req, HCI_OP_WRITE_SSP_MODE,
sizeof(mode), &mode);
} else {
}
}
- if (lmp_inq_rssi_capable(hdev))
- hci_setup_inquiry_mode(req);
+ if (lmp_inq_rssi_capable(hdev) ||
+ test_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks)) {
+ u8 mode;
+
+ /* If Extended Inquiry Result events are supported, then
+ * they are clearly preferred over Inquiry Result with RSSI
+ * events.
+ */
+ mode = lmp_ext_inq_capable(hdev) ? 0x02 : 0x01;
+
+ hci_req_add(req, HCI_OP_WRITE_INQUIRY_MODE, 1, &mode);
+ }
if (lmp_inq_tx_pwr_capable(hdev))
hci_req_add(req, HCI_OP_READ_INQ_RSP_TX_POWER, 0, NULL);
hci_setup_event_mask(req);
- /* Some Broadcom based Bluetooth controllers do not support the
- * Delete Stored Link Key command. They are clearly indicating its
- * absence in the bit mask of supported commands.
- *
- * Check the supported commands and only if the the command is marked
- * as supported send it. If not supported assume that the controller
- * does not have actual support for stored link keys which makes this
- * command redundant anyway.
- *
- * Some controllers indicate that they support handling deleting
- * stored link keys, but they don't. The quirk lets a driver
- * just disable this command.
- */
- if (hdev->commands[6] & 0x80 &&
- !test_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks)) {
- struct hci_cp_delete_stored_link_key cp;
+ if (hdev->commands[6] & 0x20) {
+ struct hci_cp_read_stored_link_key cp;
bacpy(&cp.bdaddr, BDADDR_ANY);
- cp.delete_all = 0x01;
- hci_req_add(req, HCI_OP_DELETE_STORED_LINK_KEY,
- sizeof(cp), &cp);
+ cp.read_all = 0x01;
+ hci_req_add(req, HCI_OP_READ_STORED_LINK_KEY, sizeof(cp), &cp);
}
if (hdev->commands[5] & 0x10)
* Parameter Request
*/
+ /* If the controller supports the Data Length Extension
+ * feature, enable the corresponding event.
+ */
+ if (hdev->le_features[0] & HCI_LE_DATA_LEN_EXT)
+ events[0] |= 0x40; /* LE Data Length Change */
+
/* If the controller supports Extended Scanner Filter
* Policies, enable the correspondig event.
*/
hci_req_add(req, HCI_OP_LE_READ_ADV_TX_POWER, 0, NULL);
}
+ if (hdev->le_features[0] & HCI_LE_DATA_LEN_EXT) {
+ /* Read LE Maximum Data Length */
+ hci_req_add(req, HCI_OP_LE_READ_MAX_DATA_LEN, 0, NULL);
+
+ /* Read LE Suggested Default Data Length */
+ hci_req_add(req, HCI_OP_LE_READ_DEF_DATA_LEN, 0, NULL);
+ }
+
hci_set_le_support(req);
}
{
struct hci_dev *hdev = req->hdev;
+ /* Some Broadcom based Bluetooth controllers do not support the
+ * Delete Stored Link Key command. They are clearly indicating its
+ * absence in the bit mask of supported commands.
+ *
+ * Check the supported commands and only if the the command is marked
+ * as supported send it. If not supported assume that the controller
+ * does not have actual support for stored link keys which makes this
+ * command redundant anyway.
+ *
+ * Some controllers indicate that they support handling deleting
+ * stored link keys, but they don't. The quirk lets a driver
+ * just disable this command.
+ */
+ if (hdev->commands[6] & 0x80 &&
+ !test_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks)) {
+ struct hci_cp_delete_stored_link_key cp;
+
+ bacpy(&cp.bdaddr, BDADDR_ANY);
+ cp.delete_all = 0x01;
+ hci_req_add(req, HCI_OP_DELETE_STORED_LINK_KEY,
+ sizeof(cp), &cp);
+ }
+
/* Set event mask page 2 if the HCI command for it is supported */
if (hdev->commands[22] & 0x04)
hci_set_event_mask_page_2(req);
hci_req_add(req, HCI_OP_READ_SYNC_TRAIN_PARAMS, 0, NULL);
/* Enable Secure Connections if supported and configured */
- if (bredr_sc_enabled(hdev)) {
+ if (test_bit(HCI_SSP_ENABLED, &hdev->dev_flags) &&
+ bredr_sc_enabled(hdev)) {
u8 support = 0x01;
+
hci_req_add(req, HCI_OP_WRITE_SC_SUPPORT,
sizeof(support), &support);
}
&dut_mode_fops);
}
+ err = __hci_req_sync(hdev, hci_init2_req, 0, HCI_INIT_TIMEOUT);
+ if (err < 0)
+ return err;
+
/* HCI_BREDR covers both single-mode LE, BR/EDR and dual-mode
* BR/EDR/LE type controllers. AMP controllers only need the
- * first stage init.
+ * first two stages of init.
*/
if (hdev->dev_type != HCI_BREDR)
return 0;
- err = __hci_req_sync(hdev, hci_init2_req, 0, HCI_INIT_TIMEOUT);
- if (err < 0)
- return err;
-
err = __hci_req_sync(hdev, hci_init3_req, 0, HCI_INIT_TIMEOUT);
if (err < 0)
return err;
if (err < 0)
return err;
- /* Only create debugfs entries during the initial setup
- * phase and not every time the controller gets powered on.
+ /* This function is only called when the controller is actually in
+ * configured state. When the controller is marked as unconfigured,
+ * this initialization procedure is not run.
+ *
+ * It means that it is possible that a controller runs through its
+ * setup phase and then discovers missing settings. If that is the
+ * case, then this function will not be called. It then will only
+ * be called during the config phase.
+ *
+ * So only when in setup phase or config phase, create the debugfs
+ * entries and register the SMP channels.
*/
- if (!test_bit(HCI_SETUP, &hdev->dev_flags))
+ if (!test_bit(HCI_SETUP, &hdev->dev_flags) &&
+ !test_bit(HCI_CONFIG, &hdev->dev_flags))
return 0;
- 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_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("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_bredr_capable(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);
- }
+ hci_debugfs_create_common(hdev);
- if (lmp_ssp_capable(hdev)) {
- debugfs_create_file("auto_accept_delay", 0644, hdev->debugfs,
- hdev, &auto_accept_delay_fops);
- debugfs_create_file("force_sc_support", 0644, hdev->debugfs,
- hdev, &force_sc_support_fops);
- debugfs_create_file("sc_only_mode", 0444, hdev->debugfs,
- hdev, &sc_only_mode_fops);
- if (lmp_le_capable(hdev))
- debugfs_create_file("force_lesc_support", 0644,
- hdev->debugfs, hdev,
- &force_lesc_support_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);
- }
+ if (lmp_bredr_capable(hdev))
+ hci_debugfs_create_bredr(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);
-
- /* 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_white_list_size);
- debugfs_create_file("white_list", 0444, hdev->debugfs, hdev,
- &white_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);
-
- smp_register(hdev);
- }
+ if (lmp_le_capable(hdev))
+ hci_debugfs_create_le(hdev);
return 0;
}
{
BT_DBG("%s %p", hdev->name, hdev);
+ if (!test_bit(HCI_UNREGISTER, &hdev->dev_flags)) {
+ /* Execute vendor specific shutdown routine */
+ if (hdev->shutdown)
+ hdev->shutdown(hdev);
+ }
+
cancel_delayed_work(&hdev->power_off);
hci_req_cancel(hdev, ENODEV);
cancel_delayed_work(&hdev->service_cache);
cancel_delayed_work_sync(&hdev->le_scan_disable);
+ cancel_delayed_work_sync(&hdev->le_scan_restart);
if (test_bit(HCI_MGMT, &hdev->dev_flags))
cancel_delayed_work_sync(&hdev->rpa_expired);
hci_dev_lock(hdev);
+ hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
+
if (!test_and_clear_bit(HCI_AUTO_OFF, &hdev->dev_flags)) {
if (hdev->dev_type == HCI_BREDR)
mgmt_powered(hdev, 0);
hci_conn_hash_flush(hdev);
hci_dev_unlock(hdev);
+ smp_unregister(hdev);
+
hci_notify(hdev, HCI_DEV_DOWN);
if (hdev->flush)
return err;
}
-int hci_dev_reset(__u16 dev)
+static int hci_dev_do_reset(struct hci_dev *hdev)
{
- struct hci_dev *hdev;
- int ret = 0;
+ int ret;
- hdev = hci_dev_get(dev);
- if (!hdev)
- return -ENODEV;
+ BT_DBG("%s %p", hdev->name, hdev);
hci_req_lock(hdev);
- if (!test_bit(HCI_UP, &hdev->flags)) {
- ret = -ENETDOWN;
- goto done;
- }
-
- if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) {
- ret = -EBUSY;
- goto done;
- }
-
- if (test_bit(HCI_UNCONFIGURED, &hdev->dev_flags)) {
- ret = -EOPNOTSUPP;
- goto done;
- }
-
/* Drop queues */
skb_queue_purge(&hdev->rx_q);
skb_queue_purge(&hdev->cmd_q);
ret = __hci_req_sync(hdev, hci_reset_req, 0, HCI_INIT_TIMEOUT);
-done:
hci_req_unlock(hdev);
- hci_dev_put(hdev);
return ret;
}
+int hci_dev_reset(__u16 dev)
+{
+ struct hci_dev *hdev;
+ int err;
+
+ hdev = hci_dev_get(dev);
+ if (!hdev)
+ return -ENODEV;
+
+ if (!test_bit(HCI_UP, &hdev->flags)) {
+ err = -ENETDOWN;
+ goto done;
+ }
+
+ if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) {
+ err = -EBUSY;
+ goto done;
+ }
+
+ if (test_bit(HCI_UNCONFIGURED, &hdev->dev_flags)) {
+ err = -EOPNOTSUPP;
+ goto done;
+ }
+
+ err = hci_dev_do_reset(hdev);
+
+done:
+ hci_dev_put(hdev);
+ return err;
+}
+
int hci_dev_reset_stat(__u16 dev)
{
struct hci_dev *hdev;
hci_dev_do_close(hdev);
}
+static void hci_error_reset(struct work_struct *work)
+{
+ struct hci_dev *hdev = container_of(work, struct hci_dev, error_reset);
+
+ BT_DBG("%s", hdev->name);
+
+ if (hdev->hw_error)
+ hdev->hw_error(hdev, hdev->hw_error_code);
+ else
+ BT_ERR("%s hardware error 0x%2.2x", hdev->name,
+ hdev->hw_error_code);
+
+ if (hci_dev_do_close(hdev))
+ return;
+
+ hci_dev_do_open(hdev);
+}
+
static void hci_discov_off(struct work_struct *work)
{
struct hci_dev *hdev;
}
}
+bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type)
+{
+ struct smp_ltk *k;
+ u8 addr_type;
+
+ if (type == BDADDR_BREDR) {
+ if (hci_find_link_key(hdev, bdaddr))
+ return true;
+ return false;
+ }
+
+ /* Convert to HCI addr type which struct smp_ltk uses */
+ if (type == BDADDR_LE_PUBLIC)
+ addr_type = ADDR_LE_DEV_PUBLIC;
+ else
+ addr_type = ADDR_LE_DEV_RANDOM;
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(k, &hdev->long_term_keys, list) {
+ if (k->bdaddr_type == addr_type && !bacmp(bdaddr, &k->bdaddr))
+ return true;
+ }
+ rcu_read_unlock();
+
+ return false;
+}
+
/* HCI command timer function */
static void hci_cmd_timeout(struct work_struct *work)
{
if (hash192 && rand192) {
memcpy(data->hash192, hash192, sizeof(data->hash192));
memcpy(data->rand192, rand192, sizeof(data->rand192));
+ if (hash256 && rand256)
+ data->present = 0x03;
} else {
memset(data->hash192, 0, sizeof(data->hash192));
memset(data->rand192, 0, sizeof(data->rand192));
+ if (hash256 && rand256)
+ data->present = 0x02;
+ else
+ data->present = 0x00;
}
if (hash256 && rand256) {
} else {
memset(data->hash256, 0, sizeof(data->hash256));
memset(data->rand256, 0, sizeof(data->rand256));
+ if (hash192 && rand192)
+ data->present = 0x01;
}
BT_DBG("%s for %pMR", hdev->name, bdaddr);
return NULL;
}
-static bool is_connected(struct hci_dev *hdev, bdaddr_t *addr, u8 type)
-{
- struct hci_conn *conn;
-
- conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, addr);
- if (!conn)
- return false;
-
- if (conn->dst_type != type)
- return false;
-
- if (conn->state != BT_CONNECTED)
- return false;
-
- return true;
-}
-
/* This function requires the caller holds hdev->lock */
struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list,
bdaddr_t *addr, u8 addr_type)
return params;
params = kzalloc(sizeof(*params), GFP_KERNEL);
- if (!params) {
- BT_ERR("Out of memory");
- return NULL;
- }
-
- bacpy(¶ms->addr, addr);
- params->addr_type = addr_type;
-
- list_add(¶ms->list, &hdev->le_conn_params);
- INIT_LIST_HEAD(¶ms->action);
-
- params->conn_min_interval = hdev->le_conn_min_interval;
- params->conn_max_interval = hdev->le_conn_max_interval;
- params->conn_latency = hdev->le_conn_latency;
- params->supervision_timeout = hdev->le_supv_timeout;
- params->auto_connect = HCI_AUTO_CONN_DISABLED;
-
- BT_DBG("addr %pMR (type %u)", addr, addr_type);
-
- return params;
-}
-
-/* This function requires the caller holds hdev->lock */
-int hci_conn_params_set(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type,
- u8 auto_connect)
-{
- struct hci_conn_params *params;
-
- params = hci_conn_params_add(hdev, addr, addr_type);
- if (!params)
- return -EIO;
-
- if (params->auto_connect == auto_connect)
- return 0;
-
- list_del_init(¶ms->action);
-
- switch (auto_connect) {
- case HCI_AUTO_CONN_DISABLED:
- case HCI_AUTO_CONN_LINK_LOSS:
- hci_update_background_scan(hdev);
- break;
- case HCI_AUTO_CONN_REPORT:
- list_add(¶ms->action, &hdev->pend_le_reports);
- hci_update_background_scan(hdev);
- break;
- case HCI_AUTO_CONN_DIRECT:
- case HCI_AUTO_CONN_ALWAYS:
- if (!is_connected(hdev, addr, addr_type)) {
- list_add(¶ms->action, &hdev->pend_le_conns);
- hci_update_background_scan(hdev);
- }
- break;
+ if (!params) {
+ BT_ERR("Out of memory");
+ return NULL;
}
- params->auto_connect = auto_connect;
+ bacpy(¶ms->addr, addr);
+ params->addr_type = addr_type;
- BT_DBG("addr %pMR (type %u) auto_connect %u", addr, addr_type,
- auto_connect);
+ list_add(¶ms->list, &hdev->le_conn_params);
+ INIT_LIST_HEAD(¶ms->action);
- return 0;
+ params->conn_min_interval = hdev->le_conn_min_interval;
+ params->conn_max_interval = hdev->le_conn_max_interval;
+ params->conn_latency = hdev->le_conn_latency;
+ params->supervision_timeout = hdev->le_supv_timeout;
+ params->auto_connect = HCI_AUTO_CONN_DISABLED;
+
+ BT_DBG("addr %pMR (type %u)", addr, addr_type);
+
+ return params;
}
static void hci_conn_params_free(struct hci_conn_params *params)
BT_DBG("All LE connection parameters were removed");
}
-static void inquiry_complete(struct hci_dev *hdev, u8 status)
+static void inquiry_complete(struct hci_dev *hdev, u8 status, u16 opcode)
{
if (status) {
BT_ERR("Failed to start inquiry: status %d", status);
}
}
-static void le_scan_disable_work_complete(struct hci_dev *hdev, u8 status)
+static void le_scan_disable_work_complete(struct hci_dev *hdev, u8 status,
+ u16 opcode)
{
/* General inquiry access code (GIAC) */
u8 lap[3] = { 0x33, 0x8b, 0x9e };
return;
}
+ hdev->discovery.scan_start = 0;
+
switch (hdev->discovery.type) {
case DISCOV_TYPE_LE:
hci_dev_lock(hdev);
BT_DBG("%s", hdev->name);
+ cancel_delayed_work_sync(&hdev->le_scan_restart);
+
hci_req_init(&req, hdev);
hci_req_add_le_scan_disable(&req);
BT_ERR("Disable LE scanning request failed: err %d", err);
}
-static void set_random_addr(struct hci_request *req, bdaddr_t *rpa)
+static void le_scan_restart_work_complete(struct hci_dev *hdev, u8 status,
+ u16 opcode)
{
- struct hci_dev *hdev = req->hdev;
+ unsigned long timeout, duration, scan_start, now;
- /* If we're advertising or initiating an LE connection we can't
- * go ahead and change the random address at this time. This is
- * because the eventual initiator address used for the
- * subsequently created connection will be undefined (some
- * controllers use the new address and others the one we had
- * when the operation started).
- *
- * In this kind of scenario skip the update and let the random
- * address be updated at the next cycle.
- */
- if (test_bit(HCI_LE_ADV, &hdev->dev_flags) ||
- hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT)) {
- BT_DBG("Deferring random address update");
- set_bit(HCI_RPA_EXPIRED, &hdev->dev_flags);
+ BT_DBG("%s", hdev->name);
+
+ if (status) {
+ BT_ERR("Failed to restart LE scan: status %d", status);
return;
}
- hci_req_add(req, HCI_OP_LE_SET_RANDOM_ADDR, 6, rpa);
-}
-
-int hci_update_random_address(struct hci_request *req, bool require_privacy,
- u8 *own_addr_type)
-{
- struct hci_dev *hdev = req->hdev;
- int err;
+ if (!test_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks) ||
+ !hdev->discovery.scan_start)
+ return;
- /* If privacy is enabled use a resolvable private address. If
- * current RPA has expired or there is something else than
- * the current RPA in use, then generate a new one.
+ /* When the scan was started, hdev->le_scan_disable has been queued
+ * after duration from scan_start. During scan restart this job
+ * has been canceled, and we need to queue it again after proper
+ * timeout, to make sure that scan does not run indefinitely.
*/
- if (test_bit(HCI_PRIVACY, &hdev->dev_flags)) {
- int to;
-
- *own_addr_type = ADDR_LE_DEV_RANDOM;
-
- if (!test_and_clear_bit(HCI_RPA_EXPIRED, &hdev->dev_flags) &&
- !bacmp(&hdev->random_addr, &hdev->rpa))
- return 0;
-
- err = smp_generate_rpa(hdev, hdev->irk, &hdev->rpa);
- if (err < 0) {
- BT_ERR("%s failed to generate new RPA", hdev->name);
- return err;
- }
-
- set_random_addr(req, &hdev->rpa);
-
- to = msecs_to_jiffies(hdev->rpa_timeout * 1000);
- queue_delayed_work(hdev->workqueue, &hdev->rpa_expired, to);
+ duration = hdev->discovery.scan_duration;
+ scan_start = hdev->discovery.scan_start;
+ now = jiffies;
+ if (now - scan_start <= duration) {
+ int elapsed;
+
+ if (now >= scan_start)
+ elapsed = now - scan_start;
+ else
+ elapsed = ULONG_MAX - scan_start + now;
- return 0;
+ timeout = duration - elapsed;
+ } else {
+ timeout = 0;
}
+ queue_delayed_work(hdev->workqueue,
+ &hdev->le_scan_disable, timeout);
+}
- /* In case of required privacy without resolvable private address,
- * use an non-resolvable private address. This is useful for active
- * scanning and non-connectable advertising.
- */
- if (require_privacy) {
- bdaddr_t nrpa;
+static void le_scan_restart_work(struct work_struct *work)
+{
+ struct hci_dev *hdev = container_of(work, struct hci_dev,
+ le_scan_restart.work);
+ struct hci_request req;
+ struct hci_cp_le_set_scan_enable cp;
+ int err;
- while (true) {
- /* The non-resolvable private address is generated
- * from random six bytes with the two most significant
- * bits cleared.
- */
- get_random_bytes(&nrpa, 6);
- nrpa.b[5] &= 0x3f;
+ BT_DBG("%s", hdev->name);
- /* The non-resolvable private address shall not be
- * equal to the public address.
- */
- if (bacmp(&hdev->bdaddr, &nrpa))
- break;
- }
+ /* If controller is not scanning we are done. */
+ if (!test_bit(HCI_LE_SCAN, &hdev->dev_flags))
+ return;
- *own_addr_type = ADDR_LE_DEV_RANDOM;
- set_random_addr(req, &nrpa);
- return 0;
- }
+ hci_req_init(&req, hdev);
- /* If forcing static address is in use or there is no public
- * address use the static address as random address (but skip
- * the HCI command if the current random address is already the
- * static one.
- */
- if (test_bit(HCI_FORCE_STATIC_ADDR, &hdev->dbg_flags) ||
- !bacmp(&hdev->bdaddr, BDADDR_ANY)) {
- *own_addr_type = ADDR_LE_DEV_RANDOM;
- if (bacmp(&hdev->static_addr, &hdev->random_addr))
- hci_req_add(req, HCI_OP_LE_SET_RANDOM_ADDR, 6,
- &hdev->static_addr);
- return 0;
- }
+ hci_req_add_le_scan_disable(&req);
- /* Neither privacy nor static address is being used so use a
- * public address.
- */
- *own_addr_type = ADDR_LE_DEV_PUBLIC;
+ memset(&cp, 0, sizeof(cp));
+ cp.enable = LE_SCAN_ENABLE;
+ cp.filter_dup = LE_SCAN_FILTER_DUP_ENABLE;
+ hci_req_add(&req, HCI_OP_LE_SET_SCAN_ENABLE, sizeof(cp), &cp);
- return 0;
+ err = hci_req_run(&req, le_scan_restart_work_complete);
+ if (err)
+ BT_ERR("Restart LE scan request failed: err %d", err);
}
/* Copy the Identity Address of the controller.
*
* For debugging purposes it is possible to force controllers with a
* public address to use the static random address instead.
+ *
+ * In case BR/EDR has been disabled on a dual-mode controller and
+ * userspace has configured a static address, then that address
+ * becomes the identity address instead of the public BR/EDR address.
*/
void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
u8 *bdaddr_type)
{
if (test_bit(HCI_FORCE_STATIC_ADDR, &hdev->dbg_flags) ||
- !bacmp(&hdev->bdaddr, BDADDR_ANY)) {
+ !bacmp(&hdev->bdaddr, BDADDR_ANY) ||
+ (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags) &&
+ bacmp(&hdev->static_addr, BDADDR_ANY))) {
bacpy(bdaddr, &hdev->static_addr);
*bdaddr_type = ADDR_LE_DEV_RANDOM;
} else {
hdev->le_conn_max_interval = 0x0038;
hdev->le_conn_latency = 0x0000;
hdev->le_supv_timeout = 0x002a;
+ hdev->le_def_tx_len = 0x001b;
+ hdev->le_def_tx_time = 0x0148;
+ hdev->le_max_tx_len = 0x001b;
+ hdev->le_max_tx_time = 0x0148;
+ hdev->le_max_rx_len = 0x001b;
+ hdev->le_max_rx_time = 0x0148;
hdev->rpa_timeout = HCI_DEFAULT_RPA_TIMEOUT;
hdev->discov_interleaved_timeout = DISCOV_INTERLEAVED_TIMEOUT;
INIT_WORK(&hdev->cmd_work, hci_cmd_work);
INIT_WORK(&hdev->tx_work, hci_tx_work);
INIT_WORK(&hdev->power_on, hci_power_on);
+ INIT_WORK(&hdev->error_reset, hci_error_reset);
INIT_DELAYED_WORK(&hdev->power_off, hci_power_off);
INIT_DELAYED_WORK(&hdev->discov_off, hci_discov_off);
INIT_DELAYED_WORK(&hdev->le_scan_disable, le_scan_disable_work);
+ INIT_DELAYED_WORK(&hdev->le_scan_restart, le_scan_restart_work);
skb_queue_head_init(&hdev->rx_q);
skb_queue_head_init(&hdev->cmd_q);
rfkill_destroy(hdev->rfkill);
}
- smp_unregister(hdev);
-
device_del(&hdev->dev);
debugfs_remove_recursive(hdev->debugfs);
{
BT_DBG("%p name %s", cb, cb->name);
- write_lock(&hci_cb_list_lock);
- list_add(&cb->list, &hci_cb_list);
- write_unlock(&hci_cb_list_lock);
+ mutex_lock(&hci_cb_list_lock);
+ list_add_tail(&cb->list, &hci_cb_list);
+ mutex_unlock(&hci_cb_list_lock);
return 0;
}
{
BT_DBG("%p name %s", cb, cb->name);
- write_lock(&hci_cb_list_lock);
+ mutex_lock(&hci_cb_list_lock);
list_del(&cb->list);
- write_unlock(&hci_cb_list_lock);
+ mutex_unlock(&hci_cb_list_lock);
return 0;
}
}
}
-void hci_req_init(struct hci_request *req, struct hci_dev *hdev)
-{
- skb_queue_head_init(&req->cmd_q);
- req->hdev = hdev;
- req->err = 0;
-}
-
-int hci_req_run(struct hci_request *req, hci_req_complete_t complete)
-{
- struct hci_dev *hdev = req->hdev;
- struct sk_buff *skb;
- unsigned long flags;
-
- BT_DBG("length %u", skb_queue_len(&req->cmd_q));
-
- /* If an error occurred during request building, remove all HCI
- * commands queued on the HCI request queue.
- */
- if (req->err) {
- skb_queue_purge(&req->cmd_q);
- return req->err;
- }
-
- /* Do not allow empty requests */
- if (skb_queue_empty(&req->cmd_q))
- return -ENODATA;
-
- skb = skb_peek_tail(&req->cmd_q);
- bt_cb(skb)->req.complete = complete;
-
- spin_lock_irqsave(&hdev->cmd_q.lock, flags);
- skb_queue_splice_tail(&req->cmd_q, &hdev->cmd_q);
- spin_unlock_irqrestore(&hdev->cmd_q.lock, flags);
-
- queue_work(hdev->workqueue, &hdev->cmd_work);
-
- return 0;
-}
-
bool hci_req_pending(struct hci_dev *hdev)
{
return (hdev->req_status == HCI_REQ_PEND);
}
-static struct sk_buff *hci_prepare_cmd(struct hci_dev *hdev, u16 opcode,
- u32 plen, const void *param)
-{
- int len = HCI_COMMAND_HDR_SIZE + plen;
- struct hci_command_hdr *hdr;
- struct sk_buff *skb;
-
- skb = bt_skb_alloc(len, GFP_ATOMIC);
- if (!skb)
- return NULL;
-
- hdr = (struct hci_command_hdr *) skb_put(skb, HCI_COMMAND_HDR_SIZE);
- hdr->opcode = cpu_to_le16(opcode);
- hdr->plen = plen;
-
- if (plen)
- memcpy(skb_put(skb, plen), param, plen);
-
- BT_DBG("skb len %d", skb->len);
-
- bt_cb(skb)->pkt_type = HCI_COMMAND_PKT;
- bt_cb(skb)->opcode = opcode;
-
- return skb;
-}
-
/* Send HCI command */
int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
const void *param)
/* Stand-alone HCI commands must be flagged as
* single-command requests.
*/
- bt_cb(skb)->req.start = true;
+ bt_cb(skb)->req_start = 1;
skb_queue_tail(&hdev->cmd_q, skb);
queue_work(hdev->workqueue, &hdev->cmd_work);
return 0;
}
-/* Queue a command to an asynchronous HCI request */
-void hci_req_add_ev(struct hci_request *req, u16 opcode, u32 plen,
- const void *param, u8 event)
-{
- struct hci_dev *hdev = req->hdev;
- struct sk_buff *skb;
-
- BT_DBG("%s opcode 0x%4.4x plen %d", hdev->name, opcode, plen);
-
- /* If an error occurred during request building, there is no point in
- * queueing the HCI command. We can simply return.
- */
- if (req->err)
- return;
-
- skb = hci_prepare_cmd(hdev, opcode, plen, param);
- if (!skb) {
- BT_ERR("%s no memory for command (opcode 0x%4.4x)",
- hdev->name, opcode);
- req->err = -ENOMEM;
- return;
- }
-
- if (skb_queue_empty(&req->cmd_q))
- bt_cb(skb)->req.start = true;
-
- bt_cb(skb)->req.event = event;
-
- skb_queue_tail(&req->cmd_q, skb);
-}
-
-void hci_req_add(struct hci_request *req, u16 opcode, u32 plen,
- const void *param)
-{
- hci_req_add_ev(req, opcode, plen, param, 0);
-}
-
/* Get data from the previously sent command */
void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode)
{
if (!skb)
return true;
- return bt_cb(skb)->req.start;
+ return bt_cb(skb)->req_start;
}
static void hci_resend_last(struct hci_dev *hdev)
* command queue (hdev->cmd_q).
*/
if (hdev->sent_cmd) {
- req_complete = bt_cb(hdev->sent_cmd)->req.complete;
+ req_complete = bt_cb(hdev->sent_cmd)->req_complete;
if (req_complete) {
/* We must set the complete callback to NULL to
* avoid calling the callback more than once if
* this function gets called again.
*/
- bt_cb(hdev->sent_cmd)->req.complete = NULL;
+ bt_cb(hdev->sent_cmd)->req_complete = NULL;
goto call_complete;
}
/* Remove all pending commands belonging to this request */
spin_lock_irqsave(&hdev->cmd_q.lock, flags);
while ((skb = __skb_dequeue(&hdev->cmd_q))) {
- if (bt_cb(skb)->req.start) {
+ if (bt_cb(skb)->req_start) {
__skb_queue_head(&hdev->cmd_q, skb);
break;
}
- req_complete = bt_cb(skb)->req.complete;
+ req_complete = bt_cb(skb)->req_complete;
kfree_skb(skb);
}
spin_unlock_irqrestore(&hdev->cmd_q.lock, flags);
call_complete:
if (req_complete)
- req_complete(hdev, status);
+ req_complete(hdev, status, status ? opcode : HCI_OP_NOP);
}
static void hci_rx_work(struct work_struct *work)
}
}
}
-
-void hci_req_add_le_scan_disable(struct hci_request *req)
-{
- struct hci_cp_le_set_scan_enable cp;
-
- memset(&cp, 0, sizeof(cp));
- cp.enable = LE_SCAN_DISABLE;
- hci_req_add(req, HCI_OP_LE_SET_SCAN_ENABLE, sizeof(cp), &cp);
-}
-
-static void add_to_white_list(struct hci_request *req,
- struct hci_conn_params *params)
-{
- struct hci_cp_le_add_to_white_list cp;
-
- cp.bdaddr_type = params->addr_type;
- bacpy(&cp.bdaddr, ¶ms->addr);
-
- hci_req_add(req, HCI_OP_LE_ADD_TO_WHITE_LIST, sizeof(cp), &cp);
-}
-
-static u8 update_white_list(struct hci_request *req)
-{
- struct hci_dev *hdev = req->hdev;
- struct hci_conn_params *params;
- struct bdaddr_list *b;
- uint8_t white_list_entries = 0;
-
- /* Go through the current white list programmed into the
- * controller one by one and check if that address is still
- * in the list of pending connections or list of devices to
- * report. If not present in either list, then queue the
- * command to remove it from the controller.
- */
- list_for_each_entry(b, &hdev->le_white_list, list) {
- struct hci_cp_le_del_from_white_list cp;
-
- if (hci_pend_le_action_lookup(&hdev->pend_le_conns,
- &b->bdaddr, b->bdaddr_type) ||
- hci_pend_le_action_lookup(&hdev->pend_le_reports,
- &b->bdaddr, b->bdaddr_type)) {
- white_list_entries++;
- continue;
- }
-
- cp.bdaddr_type = b->bdaddr_type;
- bacpy(&cp.bdaddr, &b->bdaddr);
-
- hci_req_add(req, HCI_OP_LE_DEL_FROM_WHITE_LIST,
- sizeof(cp), &cp);
- }
-
- /* Since all no longer valid white list entries have been
- * removed, walk through the list of pending connections
- * and ensure that any new device gets programmed into
- * the controller.
- *
- * If the list of the devices is larger than the list of
- * available white list entries in the controller, then
- * just abort and return filer policy value to not use the
- * white list.
- */
- list_for_each_entry(params, &hdev->pend_le_conns, action) {
- if (hci_bdaddr_list_lookup(&hdev->le_white_list,
- ¶ms->addr, params->addr_type))
- continue;
-
- if (white_list_entries >= hdev->le_white_list_size) {
- /* Select filter policy to accept all advertising */
- return 0x00;
- }
-
- if (hci_find_irk_by_addr(hdev, ¶ms->addr,
- params->addr_type)) {
- /* White list can not be used with RPAs */
- return 0x00;
- }
-
- white_list_entries++;
- add_to_white_list(req, params);
- }
-
- /* After adding all new pending connections, walk through
- * the list of pending reports and also add these to the
- * white list if there is still space.
- */
- list_for_each_entry(params, &hdev->pend_le_reports, action) {
- if (hci_bdaddr_list_lookup(&hdev->le_white_list,
- ¶ms->addr, params->addr_type))
- continue;
-
- if (white_list_entries >= hdev->le_white_list_size) {
- /* Select filter policy to accept all advertising */
- return 0x00;
- }
-
- if (hci_find_irk_by_addr(hdev, ¶ms->addr,
- params->addr_type)) {
- /* White list can not be used with RPAs */
- return 0x00;
- }
-
- white_list_entries++;
- add_to_white_list(req, params);
- }
-
- /* Select filter policy to use white list */
- return 0x01;
-}
-
-void hci_req_add_le_passive_scan(struct hci_request *req)
-{
- struct hci_cp_le_set_scan_param param_cp;
- struct hci_cp_le_set_scan_enable enable_cp;
- struct hci_dev *hdev = req->hdev;
- u8 own_addr_type;
- u8 filter_policy;
-
- /* Set require_privacy to false since no SCAN_REQ are send
- * during passive scanning. Not using an non-resolvable address
- * here is important so that peer devices using direct
- * advertising with our address will be correctly reported
- * by the controller.
- */
- if (hci_update_random_address(req, false, &own_addr_type))
- return;
-
- /* Adding or removing entries from the white list must
- * happen before enabling scanning. The controller does
- * not allow white list modification while scanning.
- */
- filter_policy = update_white_list(req);
-
- /* When the controller is using random resolvable addresses and
- * with that having LE privacy enabled, then controllers with
- * Extended Scanner Filter Policies support can now enable support
- * for handling directed advertising.
- *
- * So instead of using filter polices 0x00 (no whitelist)
- * and 0x01 (whitelist enabled) use the new filter policies
- * 0x02 (no whitelist) and 0x03 (whitelist enabled).
- */
- if (test_bit(HCI_PRIVACY, &hdev->dev_flags) &&
- (hdev->le_features[0] & HCI_LE_EXT_SCAN_POLICY))
- filter_policy |= 0x02;
-
- memset(¶m_cp, 0, sizeof(param_cp));
- param_cp.type = LE_SCAN_PASSIVE;
- param_cp.interval = cpu_to_le16(hdev->le_scan_interval);
- param_cp.window = cpu_to_le16(hdev->le_scan_window);
- param_cp.own_address_type = own_addr_type;
- param_cp.filter_policy = filter_policy;
- hci_req_add(req, HCI_OP_LE_SET_SCAN_PARAM, sizeof(param_cp),
- ¶m_cp);
-
- memset(&enable_cp, 0, sizeof(enable_cp));
- enable_cp.enable = LE_SCAN_ENABLE;
- enable_cp.filter_dup = LE_SCAN_FILTER_DUP_ENABLE;
- hci_req_add(req, HCI_OP_LE_SET_SCAN_ENABLE, sizeof(enable_cp),
- &enable_cp);
-}
-
-static void update_background_scan_complete(struct hci_dev *hdev, u8 status)
-{
- if (status)
- BT_DBG("HCI request failed to update background scanning: "
- "status 0x%2.2x", status);
-}
-
-/* This function controls the background scanning based on hdev->pend_le_conns
- * list. If there are pending LE connection we start the background scanning,
- * otherwise we stop it.
- *
- * This function requires the caller holds hdev->lock.
- */
-void hci_update_background_scan(struct hci_dev *hdev)
-{
- struct hci_request req;
- struct hci_conn *conn;
- int err;
-
- if (!test_bit(HCI_UP, &hdev->flags) ||
- test_bit(HCI_INIT, &hdev->flags) ||
- test_bit(HCI_SETUP, &hdev->dev_flags) ||
- test_bit(HCI_CONFIG, &hdev->dev_flags) ||
- test_bit(HCI_AUTO_OFF, &hdev->dev_flags) ||
- test_bit(HCI_UNREGISTER, &hdev->dev_flags))
- return;
-
- /* No point in doing scanning if LE support hasn't been enabled */
- if (!test_bit(HCI_LE_ENABLED, &hdev->dev_flags))
- return;
-
- /* If discovery is active don't interfere with it */
- if (hdev->discovery.state != DISCOVERY_STOPPED)
- return;
-
- /* Reset RSSI and UUID filters when starting background scanning
- * since these filters are meant for service discovery only.
- *
- * The Start Discovery and Start Service Discovery operations
- * ensure to set proper values for RSSI threshold and UUID
- * filter list. So it is safe to just reset them here.
- */
- hci_discovery_filter_clear(hdev);
-
- hci_req_init(&req, hdev);
-
- if (list_empty(&hdev->pend_le_conns) &&
- list_empty(&hdev->pend_le_reports)) {
- /* If there is no pending LE connections or devices
- * to be scanned for, we should stop the background
- * scanning.
- */
-
- /* If controller is not scanning we are done. */
- if (!test_bit(HCI_LE_SCAN, &hdev->dev_flags))
- return;
-
- hci_req_add_le_scan_disable(&req);
-
- BT_DBG("%s stopping background scanning", hdev->name);
- } else {
- /* If there is at least one pending LE connection, we should
- * keep the background scan running.
- */
-
- /* If controller is connecting, we should not start scanning
- * since some controllers are not able to scan and connect at
- * the same time.
- */
- conn = hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT);
- if (conn)
- return;
-
- /* If controller is currently scanning, we stop it to ensure we
- * don't miss any advertising (due to duplicates filter).
- */
- if (test_bit(HCI_LE_SCAN, &hdev->dev_flags))
- hci_req_add_le_scan_disable(&req);
-
- hci_req_add_le_passive_scan(&req);
-
- BT_DBG("%s starting background scanning", hdev->name);
- }
-
- err = hci_req_run(&req, update_background_scan_complete);
- if (err)
- BT_ERR("Failed to run HCI request: err %d", err);
-}
-
-static bool disconnected_whitelist_entries(struct hci_dev *hdev)
-{
- struct bdaddr_list *b;
-
- list_for_each_entry(b, &hdev->whitelist, list) {
- struct hci_conn *conn;
-
- conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &b->bdaddr);
- if (!conn)
- return true;
-
- if (conn->state != BT_CONNECTED && conn->state != BT_CONFIG)
- return true;
- }
-
- return false;
-}
-
-void hci_update_page_scan(struct hci_dev *hdev, struct hci_request *req)
-{
- u8 scan;
-
- if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags))
- return;
-
- if (!hdev_is_powered(hdev))
- return;
-
- if (mgmt_powering_down(hdev))
- return;
-
- if (test_bit(HCI_CONNECTABLE, &hdev->dev_flags) ||
- disconnected_whitelist_entries(hdev))
- scan = SCAN_PAGE;
- else
- scan = SCAN_DISABLED;
-
- if (test_bit(HCI_PSCAN, &hdev->flags) == !!(scan & SCAN_PAGE))
- return;
-
- if (test_bit(HCI_DISCOVERABLE, &hdev->dev_flags))
- scan |= SCAN_INQUIRY;
-
- if (req)
- hci_req_add(req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
- else
- hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
-}
projects / cascardo / linux.git / blobdiff