diff options
Diffstat (limited to 'net/bluetooth/hci_core.c')
| -rw-r--r-- | net/bluetooth/hci_core.c | 153 |
1 files changed, 147 insertions, 6 deletions
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index c4802f3bd4c5..2f8fb33067e1 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -94,7 +94,6 @@ static ssize_t dut_mode_write(struct file *file, const char __user *user_buf, char buf[32]; size_t buf_size = min(count, (sizeof(buf)-1)); bool enable; - int err; if (!test_bit(HCI_UP, &hdev->flags)) return -ENETDOWN; @@ -121,12 +120,8 @@ static ssize_t dut_mode_write(struct file *file, const char __user *user_buf, if (IS_ERR(skb)) return PTR_ERR(skb); - err = -bt_to_errno(skb->data[0]); kfree_skb(skb); - if (err < 0) - return err; - hci_dev_change_flag(hdev, HCI_DUT_MODE); return count; @@ -1558,6 +1553,7 @@ static int hci_dev_do_close(struct hci_dev *hdev) BT_DBG("%s %p", hdev->name, hdev); if (!hci_dev_test_flag(hdev, HCI_UNREGISTER) && + !hci_dev_test_flag(hdev, HCI_USER_CHANNEL) && test_bit(HCI_UP, &hdev->flags)) { /* Execute vendor specific shutdown routine */ if (hdev->shutdown) @@ -1595,6 +1591,11 @@ static int hci_dev_do_close(struct hci_dev *hdev) if (hci_dev_test_flag(hdev, HCI_MGMT)) cancel_delayed_work_sync(&hdev->rpa_expired); + if (hdev->adv_instance_timeout) { + cancel_delayed_work_sync(&hdev->adv_instance_expire); + hdev->adv_instance_timeout = 0; + } + /* Avoid potential lockdep warnings from the *_flush() calls by * ensuring the workqueue is empty up front. */ @@ -2151,6 +2152,17 @@ static void hci_discov_off(struct work_struct *work) mgmt_discoverable_timeout(hdev); } +static void hci_adv_timeout_expire(struct work_struct *work) +{ + struct hci_dev *hdev; + + hdev = container_of(work, struct hci_dev, adv_instance_expire.work); + + BT_DBG("%s", hdev->name); + + mgmt_adv_timeout_expired(hdev); +} + void hci_uuids_clear(struct hci_dev *hdev) { struct bt_uuid *uuid, *tmp; @@ -2614,6 +2626,130 @@ int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, return 0; } +/* This function requires the caller holds hdev->lock */ +struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance) +{ + struct adv_info *adv_instance; + + list_for_each_entry(adv_instance, &hdev->adv_instances, list) { + if (adv_instance->instance == instance) + return adv_instance; + } + + return NULL; +} + +/* This function requires the caller holds hdev->lock */ +struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance) { + struct adv_info *cur_instance; + + cur_instance = hci_find_adv_instance(hdev, instance); + if (!cur_instance) + return NULL; + + if (cur_instance == list_last_entry(&hdev->adv_instances, + struct adv_info, list)) + return list_first_entry(&hdev->adv_instances, + struct adv_info, list); + else + return list_next_entry(cur_instance, list); +} + +/* This function requires the caller holds hdev->lock */ +int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance) +{ + struct adv_info *adv_instance; + + adv_instance = hci_find_adv_instance(hdev, instance); + if (!adv_instance) + return -ENOENT; + + BT_DBG("%s removing %dMR", hdev->name, instance); + + if (hdev->cur_adv_instance == instance && hdev->adv_instance_timeout) { + cancel_delayed_work(&hdev->adv_instance_expire); + hdev->adv_instance_timeout = 0; + } + + list_del(&adv_instance->list); + kfree(adv_instance); + + hdev->adv_instance_cnt--; + + return 0; +} + +/* This function requires the caller holds hdev->lock */ +void hci_adv_instances_clear(struct hci_dev *hdev) +{ + struct adv_info *adv_instance, *n; + + if (hdev->adv_instance_timeout) { + cancel_delayed_work(&hdev->adv_instance_expire); + hdev->adv_instance_timeout = 0; + } + + list_for_each_entry_safe(adv_instance, n, &hdev->adv_instances, list) { + list_del(&adv_instance->list); + kfree(adv_instance); + } + + hdev->adv_instance_cnt = 0; +} + +/* This function requires the caller holds hdev->lock */ +int hci_add_adv_instance(struct hci_dev *hdev, u8 instance, u32 flags, + u16 adv_data_len, u8 *adv_data, + u16 scan_rsp_len, u8 *scan_rsp_data, + u16 timeout, u16 duration) +{ + struct adv_info *adv_instance; + + adv_instance = hci_find_adv_instance(hdev, instance); + if (adv_instance) { + memset(adv_instance->adv_data, 0, + sizeof(adv_instance->adv_data)); + memset(adv_instance->scan_rsp_data, 0, + sizeof(adv_instance->scan_rsp_data)); + } else { + if (hdev->adv_instance_cnt >= HCI_MAX_ADV_INSTANCES || + instance < 1 || instance > HCI_MAX_ADV_INSTANCES) + return -EOVERFLOW; + + adv_instance = kzalloc(sizeof(*adv_instance), GFP_KERNEL); + if (!adv_instance) + return -ENOMEM; + + adv_instance->pending = true; + adv_instance->instance = instance; + list_add(&adv_instance->list, &hdev->adv_instances); + hdev->adv_instance_cnt++; + } + + adv_instance->flags = flags; + adv_instance->adv_data_len = adv_data_len; + adv_instance->scan_rsp_len = scan_rsp_len; + + if (adv_data_len) + memcpy(adv_instance->adv_data, adv_data, adv_data_len); + + if (scan_rsp_len) + memcpy(adv_instance->scan_rsp_data, + scan_rsp_data, scan_rsp_len); + + adv_instance->timeout = timeout; + adv_instance->remaining_time = timeout; + + if (duration == 0) + adv_instance->duration = HCI_DEFAULT_ADV_DURATION; + else + adv_instance->duration = duration; + + BT_DBG("%s for %dMR", hdev->name, instance); + + return 0; +} + struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *bdaddr_list, bdaddr_t *bdaddr, u8 type) { @@ -3019,6 +3155,9 @@ struct hci_dev *hci_alloc_dev(void) hdev->manufacturer = 0xffff; /* Default to internal use */ hdev->inq_tx_power = HCI_TX_POWER_INVALID; hdev->adv_tx_power = HCI_TX_POWER_INVALID; + hdev->adv_instance_cnt = 0; + hdev->cur_adv_instance = 0x00; + hdev->adv_instance_timeout = 0; hdev->sniff_max_interval = 800; hdev->sniff_min_interval = 80; @@ -3060,6 +3199,7 @@ struct hci_dev *hci_alloc_dev(void) INIT_LIST_HEAD(&hdev->pend_le_conns); INIT_LIST_HEAD(&hdev->pend_le_reports); INIT_LIST_HEAD(&hdev->conn_hash.list); + INIT_LIST_HEAD(&hdev->adv_instances); INIT_WORK(&hdev->rx_work, hci_rx_work); INIT_WORK(&hdev->cmd_work, hci_cmd_work); @@ -3071,6 +3211,7 @@ struct hci_dev *hci_alloc_dev(void) 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); + INIT_DELAYED_WORK(&hdev->adv_instance_expire, hci_adv_timeout_expire); skb_queue_head_init(&hdev->rx_q); skb_queue_head_init(&hdev->cmd_q); @@ -3082,7 +3223,6 @@ struct hci_dev *hci_alloc_dev(void) hci_init_sysfs(hdev); discovery_init(hdev); - adv_info_init(hdev); return hdev; } @@ -3253,6 +3393,7 @@ void hci_unregister_dev(struct hci_dev *hdev) hci_smp_ltks_clear(hdev); hci_smp_irks_clear(hdev); hci_remote_oob_data_clear(hdev); + hci_adv_instances_clear(hdev); hci_bdaddr_list_clear(&hdev->le_white_list); hci_conn_params_clear_all(hdev); hci_discovery_filter_clear(hdev); |