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Bluetooth: Fix connecting devices during LE device discovery

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If we have devices set as to be connected we should connect to them even
during normal discovery if we get a connectable advertising event. If we
also have HCI_CONNECTABLE set we should connect ADV_DIRECT_IND events
even to devices that we don't have in our pend_le_conns list. This patch
implements such behavior by passing the advertising report type to
check_pending_le_conn() and calls that function regardless of what type
of scanning we are doing.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Johan Hedberg 2014-07-07 12:45:53 +03:00 committed by Marcel Holtmann
parent 4f64fa807a
commit 1c1abcabfa
1 changed files with 29 additions and 18 deletions
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47
net/bluetooth/hci_event.c
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@ -4229,13 +4229,30 @@ static void hci_le_conn_update_complete_evt(struct hci_dev *hdev,
/* This function requires the caller holds hdev->lock */
static bool check_pending_le_conn(struct hci_dev *hdev, bdaddr_t *addr,
u8 addr_type)
u8 addr_type, u8 adv_type)
{
struct hci_conn *conn;
/* If the event is not connectable don't proceed further */
if (adv_type != LE_ADV_IND && adv_type != LE_ADV_DIRECT_IND)
return false;
/* Ignore if the device is blocked */
if (hci_blacklist_lookup(hdev, addr, addr_type))
return false;
/* If we're connectable, always connect any ADV_DIRECT_IND event */
if (test_bit(HCI_CONNECTABLE, &hdev->dev_flags) &&
adv_type == LE_ADV_DIRECT_IND)
goto connect;
/* If we're not connectable only connect devices that we have in
* our pend_le_conns list.
*/
if (!hci_pend_le_action_lookup(&hdev->pend_le_conns, addr, addr_type))
return false;
connect:
conn = hci_connect_le(hdev, addr, addr_type, BT_SECURITY_LOW,
HCI_AT_NO_BONDING, HCI_LE_AUTOCONN_TIMEOUT);
if (!IS_ERR(conn))
@ -4260,32 +4277,26 @@ static void process_adv_report(struct hci_dev *hdev, u8 type, bdaddr_t *bdaddr,
u8 bdaddr_type, s8 rssi, u8 *data, u8 len)
{
struct discovery_state *d = &hdev->discovery;
struct smp_irk *irk;
bool match;
u32 flags;
/* Check if we need to convert to identity address */
irk = hci_get_irk(hdev, bdaddr, bdaddr_type);
if (irk) {
bdaddr = &irk->bdaddr;
bdaddr_type = irk->addr_type;
}
/* Check if we have been requested to connect to this device */
check_pending_le_conn(hdev, bdaddr, bdaddr_type, type);
/* Passive scanning shouldn't trigger any device found events,
* except for devices marked as CONN_REPORT for which we do send
* device found events.
*/
if (hdev->le_scan_type == LE_SCAN_PASSIVE) {
struct hci_conn_params *param;
struct smp_irk *irk;
/* Check if we need to convert to identity address */
irk = hci_get_irk(hdev, bdaddr, bdaddr_type);
if (irk) {
bdaddr = &irk->bdaddr;
bdaddr_type = irk->addr_type;
}
/* Ignore if the device is blocked */
if (hci_blacklist_lookup(hdev, bdaddr, bdaddr_type))
return;
if (type == LE_ADV_IND || type == LE_ADV_DIRECT_IND) {
if (check_pending_le_conn(hdev, bdaddr, bdaddr_type))
return;
}
if (type == LE_ADV_DIRECT_IND)
return;