From a4858cb942b9afa57c1220aa5d9b536a0d7ec623 Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Tue, 25 Feb 2014 19:56:31 +0200 Subject: [PATCH] Bluetooth: Fix advertising address type when toggling connectable When the connectable setting is toggled using mgmt_set_connectable the HCI_CONNECTABLE flag will only be set once the related HCI commands succeed. When determining what kind of advertising to do we need to therefore also check whether there is a pending Set Connectable command in addition to the current flag value. The enable_advertising function was already taking care of this for the advertising type with the help of the get_adv_type function, but was failing to do the same for the address type selection. This patch converts the get_adv_type function to be more generic in that it returns the expected connectable state and updates the enable_advertising function to use the return value both for the advertising type as well as the advertising address type. Signed-off-by: Johan Hedberg Signed-off-by: Marcel Holtmann --- net/bluetooth/mgmt.c | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-) diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 25b8b278debd..d6e269287cfc 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -817,10 +817,9 @@ static void update_class(struct hci_request *req) hci_req_add(req, HCI_OP_WRITE_CLASS_OF_DEV, sizeof(cod), cod); } -static u8 get_adv_type(struct hci_dev *hdev) +static bool get_connectable(struct hci_dev *hdev) { struct pending_cmd *cmd; - bool connectable; /* If there's a pending mgmt command the flag will not yet have * it's final value, so check for this first. @@ -828,12 +827,10 @@ static u8 get_adv_type(struct hci_dev *hdev) cmd = mgmt_pending_find(MGMT_OP_SET_CONNECTABLE, hdev); if (cmd) { struct mgmt_mode *cp = cmd->param; - connectable = !!cp->val; - } else { - connectable = test_bit(HCI_CONNECTABLE, &hdev->dev_flags); + return cp->val; } - return connectable ? LE_ADV_IND : LE_ADV_NONCONN_IND; + return test_bit(HCI_CONNECTABLE, &hdev->dev_flags); } static void enable_advertising(struct hci_request *req) @@ -841,17 +838,21 @@ static void enable_advertising(struct hci_request *req) struct hci_dev *hdev = req->hdev; struct hci_cp_le_set_adv_param cp; u8 own_addr_type, enable = 0x01; - bool require_privacy; + bool connectable; - require_privacy = !test_bit(HCI_CONNECTABLE, &hdev->dev_flags); + connectable = get_connectable(hdev); - if (hci_update_random_address(req, require_privacy, &own_addr_type) < 0) + /* Set require_privacy to true only when non-connectable + * advertising is used. In that case it is fine to use a + * non-resolvable private address. + */ + if (hci_update_random_address(req, !connectable, &own_addr_type) < 0) return; memset(&cp, 0, sizeof(cp)); cp.min_interval = __constant_cpu_to_le16(0x0800); cp.max_interval = __constant_cpu_to_le16(0x0800); - cp.type = get_adv_type(hdev); + cp.type = connectable ? LE_ADV_IND : LE_ADV_NONCONN_IND; cp.own_address_type = own_addr_type; cp.channel_map = hdev->le_adv_channel_map; -- 2.30.2