diff options
Diffstat (limited to 'net/bluetooth')
| -rw-r--r-- | net/bluetooth/hci_core.c | 31 | ||||
| -rw-r--r-- | net/bluetooth/mgmt.c | 72 |
2 files changed, 43 insertions, 60 deletions
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index c32d361c0cf7..a031589598b2 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -5680,3 +5680,34 @@ void hci_update_background_scan(struct hci_dev *hdev) if (err) BT_ERR("Failed to run HCI request: err %d", err); } + +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) || + !list_empty(&hdev->whitelist)) + 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); +} diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index c9de0d9945f5..c2457435a670 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -129,9 +129,6 @@ static const u16 mgmt_events[] = { #define CACHE_TIMEOUT msecs_to_jiffies(2 * 1000) -#define hdev_is_powered(hdev) (test_bit(HCI_UP, &hdev->flags) && \ - !test_bit(HCI_AUTO_OFF, &hdev->dev_flags)) - struct pending_cmd { struct list_head list; u16 opcode; @@ -1536,9 +1533,11 @@ static void set_discoverable_complete(struct hci_dev *hdev, u8 status) /* When the discoverable mode gets changed, make sure * that class of device has the limited discoverable - * bit correctly set. + * bit correctly set. Also update page scan based on whitelist + * entries. */ hci_req_init(&req, hdev); + hci_update_page_scan(hdev, &req); update_class(&req); hci_req_run(&req, NULL); @@ -1785,6 +1784,7 @@ static void set_connectable_complete(struct hci_dev *hdev, u8 status) if (conn_changed || discov_changed) { new_settings(hdev, cmd->sk); + hci_update_page_scan(hdev, NULL); if (discov_changed) mgmt_update_adv_data(hdev); hci_update_background_scan(hdev); @@ -1818,6 +1818,7 @@ static int set_connectable_update_settings(struct hci_dev *hdev, return err; if (changed) { + hci_update_page_scan(hdev, NULL); hci_update_background_scan(hdev); return new_settings(hdev, sk); } @@ -4381,27 +4382,6 @@ unlock: return err; } -static void set_bredr_scan(struct hci_request *req) -{ - struct hci_dev *hdev = req->hdev; - u8 scan = 0; - - /* Ensure that fast connectable is disabled. This function will - * not do anything if the page scan parameters are already what - * they should be. - */ - write_fast_connectable(req, false); - - if (test_bit(HCI_CONNECTABLE, &hdev->dev_flags) || - !list_empty(&hdev->whitelist)) - scan |= SCAN_PAGE; - if (test_bit(HCI_DISCOVERABLE, &hdev->dev_flags)) - scan |= SCAN_INQUIRY; - - if (scan) - hci_req_add(req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan); -} - static void set_bredr_complete(struct hci_dev *hdev, u8 status) { struct pending_cmd *cmd; @@ -4507,9 +4487,8 @@ static int set_bredr(struct sock *sk, struct hci_dev *hdev, void *data, u16 len) hci_req_init(&req, hdev); - if (test_bit(HCI_CONNECTABLE, &hdev->dev_flags) || - !list_empty(&hdev->whitelist)) - set_bredr_scan(&req); + write_fast_connectable(&req, false); + hci_update_page_scan(hdev, &req); /* Since only the advertising data flags will change, there * is no need to update the scan response data. @@ -5235,27 +5214,6 @@ unlock: return err; } -/* Helper for Add/Remove Device commands */ -static void update_page_scan(struct hci_dev *hdev, u8 scan) -{ - if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) - return; - - if (!hdev_is_powered(hdev)) - return; - - /* If HCI_CONNECTABLE is set then Add/Remove Device should not - * make any changes to page scanning. - */ - if (test_bit(HCI_CONNECTABLE, &hdev->dev_flags)) - return; - - if (test_bit(HCI_DISCOVERABLE, &hdev->dev_flags)) - scan |= SCAN_INQUIRY; - - hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan); -} - static void device_added(struct sock *sk, struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type, u8 action) { @@ -5291,8 +5249,6 @@ static int add_device(struct sock *sk, struct hci_dev *hdev, hci_dev_lock(hdev); if (cp->addr.type == BDADDR_BREDR) { - bool update_scan; - /* Only incoming connections action is supported for now */ if (cp->action != 0x01) { err = cmd_complete(sk, hdev->id, MGMT_OP_ADD_DEVICE, @@ -5301,15 +5257,12 @@ static int add_device(struct sock *sk, struct hci_dev *hdev, goto unlock; } - update_scan = list_empty(&hdev->whitelist); - err = hci_bdaddr_list_add(&hdev->whitelist, &cp->addr.bdaddr, cp->addr.type); if (err) goto unlock; - if (update_scan) - update_page_scan(hdev, SCAN_PAGE); + hci_update_page_scan(hdev, NULL); goto added; } @@ -5392,8 +5345,7 @@ static int remove_device(struct sock *sk, struct hci_dev *hdev, goto unlock; } - if (list_empty(&hdev->whitelist)) - update_page_scan(hdev, SCAN_DISABLED); + hci_update_page_scan(hdev, NULL); device_removed(sk, hdev, &cp->addr.bdaddr, cp->addr.type); @@ -5444,7 +5396,7 @@ static int remove_device(struct sock *sk, struct hci_dev *hdev, kfree(b); } - update_page_scan(hdev, SCAN_DISABLED); + hci_update_page_scan(hdev, NULL); list_for_each_entry_safe(p, tmp, &hdev->le_conn_params, list) { if (p->auto_connect == HCI_AUTO_CONN_DISABLED) @@ -5969,8 +5921,8 @@ static int powered_update_hci(struct hci_dev *hdev) sizeof(link_sec), &link_sec); if (lmp_bredr_capable(hdev)) { - if (test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) - set_bredr_scan(&req); + write_fast_connectable(&req, false); + hci_update_page_scan(hdev, &req); update_class(&req); update_name(&req); update_eir(&req); |