Bluetooth: Introduce hdev->pend_le_conn list

This patch introduces the hdev->pend_le_conn list which holds the
device addresses the kernel should autonomously connect. It also
introduces some helper functions to manipulate the list.

The list and helper functions will be used by the next patch which
implements the LE auto connection infrastructure.

Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Andre Guedes 2014-02-26 20:21:46 -03:00 committed by Marcel Holtmann
parent 6f77d8c757
commit 77a77a30ae
2 changed files with 75 additions and 0 deletions

View File

@ -284,6 +284,7 @@ struct hci_dev {
struct list_head identity_resolving_keys;
struct list_head remote_oob_data;
struct list_head le_conn_params;
struct list_head pend_le_conns;
struct hci_dev_stats stat;
@ -799,6 +800,12 @@ void hci_conn_params_add(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type,
void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
void hci_conn_params_clear(struct hci_dev *hdev);
struct bdaddr_list *hci_pend_le_conn_lookup(struct hci_dev *hdev,
bdaddr_t *addr, u8 addr_type);
void hci_pend_le_conn_add(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
void hci_pend_le_conn_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
void hci_pend_le_conns_clear(struct hci_dev *hdev);
void hci_uuids_clear(struct hci_dev *hdev);
void hci_link_keys_clear(struct hci_dev *hdev);

View File

@ -3259,6 +3259,72 @@ void hci_conn_params_clear(struct hci_dev *hdev)
BT_DBG("All LE connection parameters were removed");
}
/* This function requires the caller holds hdev->lock */
struct bdaddr_list *hci_pend_le_conn_lookup(struct hci_dev *hdev,
bdaddr_t *addr, u8 addr_type)
{
struct bdaddr_list *entry;
list_for_each_entry(entry, &hdev->pend_le_conns, list) {
if (bacmp(&entry->bdaddr, addr) == 0 &&
entry->bdaddr_type == addr_type)
return entry;
}
return NULL;
}
/* This function requires the caller holds hdev->lock */
void hci_pend_le_conn_add(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type)
{
struct bdaddr_list *entry;
entry = hci_pend_le_conn_lookup(hdev, addr, addr_type);
if (entry)
return;
entry = kzalloc(sizeof(*entry), GFP_KERNEL);
if (!entry) {
BT_ERR("Out of memory");
return;
}
bacpy(&entry->bdaddr, addr);
entry->bdaddr_type = addr_type;
list_add(&entry->list, &hdev->pend_le_conns);
BT_DBG("addr %pMR (type %u)", addr, addr_type);
}
/* This function requires the caller holds hdev->lock */
void hci_pend_le_conn_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type)
{
struct bdaddr_list *entry;
entry = hci_pend_le_conn_lookup(hdev, addr, addr_type);
if (!entry)
return;
list_del(&entry->list);
kfree(entry);
BT_DBG("addr %pMR (type %u)", addr, addr_type);
}
/* This function requires the caller holds hdev->lock */
void hci_pend_le_conns_clear(struct hci_dev *hdev)
{
struct bdaddr_list *entry, *tmp;
list_for_each_entry_safe(entry, tmp, &hdev->pend_le_conns, list) {
list_del(&entry->list);
kfree(entry);
}
BT_DBG("All LE pending connections cleared");
}
static void inquiry_complete(struct hci_dev *hdev, u8 status)
{
if (status) {
@ -3441,6 +3507,7 @@ struct hci_dev *hci_alloc_dev(void)
INIT_LIST_HEAD(&hdev->identity_resolving_keys);
INIT_LIST_HEAD(&hdev->remote_oob_data);
INIT_LIST_HEAD(&hdev->le_conn_params);
INIT_LIST_HEAD(&hdev->pend_le_conns);
INIT_LIST_HEAD(&hdev->conn_hash.list);
INIT_WORK(&hdev->rx_work, hci_rx_work);
@ -3642,6 +3709,7 @@ void hci_unregister_dev(struct hci_dev *hdev)
hci_smp_irks_clear(hdev);
hci_remote_oob_data_clear(hdev);
hci_conn_params_clear(hdev);
hci_pend_le_conns_clear(hdev);
hci_dev_unlock(hdev);
hci_dev_put(hdev);