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Bluetooth: Add definitions and track LE resolve list modification 

Add the definitions for adding entries to the LE resolve list and
removing entries from the LE resolve list. When the LE resolve list
gets changed via HCI commands make sure that the internal storage of
the resolve list entries gets updated.

Signed-off-by: Ankit Navik <ankit.p.navik@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Ankit Navik 2018-08-17 07:29:19 +05:30 committed by Marcel Holtmann
parent 3e4be65eb8
commit b950aa8863
4 changed files with 139 additions and 0 deletions
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14
include/net/bluetooth/hci.h
View File

@ -1517,6 +1517,20 @@ struct hci_cp_le_write_def_data_len {
__le16 tx_time;
} __packed;
#define HCI_OP_LE_ADD_TO_RESOLV_LIST 0x2027
struct hci_cp_le_add_to_resolv_list {
__u8 bdaddr_type;
bdaddr_t bdaddr;
__u8 peer_irk[16];
__u8 local_irk[16];
} __packed;
#define HCI_OP_LE_DEL_FROM_RESOLV_LIST 0x2028
struct hci_cp_le_del_from_resolv_list {
__u8 bdaddr_type;
bdaddr_t bdaddr;
} __packed;
#define HCI_OP_LE_CLEAR_RESOLV_LIST 0x2029
#define HCI_OP_LE_READ_RESOLV_LIST_SIZE 0x202a

15
include/net/bluetooth/hci_core.h
View File

@ -103,6 +103,14 @@ struct bdaddr_list {
u8 bdaddr_type;
};
struct bdaddr_list_with_irk {
struct list_head list;
bdaddr_t bdaddr;
u8 bdaddr_type;
u8 peer_irk[16];
u8 local_irk[16];
};
struct bt_uuid {
struct list_head list;
u8 uuid[16];
@ -1058,8 +1066,15 @@ int hci_inquiry(void __user *arg);
struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list,
bdaddr_t *bdaddr, u8 type);
struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk(
struct list_head *list, bdaddr_t *bdaddr,
u8 type);
int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type);
int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr,
u8 type, u8 *peer_irk, u8 *local_irk);
int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type);
int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr,
u8 type);
void hci_bdaddr_list_clear(struct list_head *list);
struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,

63
net/bluetooth/hci_core.c
View File

@ -2839,6 +2839,20 @@ struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *bdaddr_list,
return NULL;
}
struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk(
struct list_head *bdaddr_list, bdaddr_t *bdaddr,
u8 type)
{
struct bdaddr_list_with_irk *b;
list_for_each_entry(b, bdaddr_list, list) {
if (!bacmp(&b->bdaddr, bdaddr) && b->bdaddr_type == type)
return b;
}
return NULL;
}
void hci_bdaddr_list_clear(struct list_head *bdaddr_list)
{
struct bdaddr_list *b, *n;
@ -2871,6 +2885,35 @@ int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type)
return 0;
}
int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr,
u8 type, u8 *peer_irk, u8 *local_irk)
{
struct bdaddr_list_with_irk *entry;
if (!bacmp(bdaddr, BDADDR_ANY))
return -EBADF;
if (hci_bdaddr_list_lookup(list, bdaddr, type))
return -EEXIST;
entry = kzalloc(sizeof(*entry), GFP_KERNEL);
if (!entry)
return -ENOMEM;
bacpy(&entry->bdaddr, bdaddr);
entry->bdaddr_type = type;
if (peer_irk)
memcpy(entry->peer_irk, peer_irk, 16);
if (local_irk)
memcpy(entry->local_irk, local_irk, 16);
list_add(&entry->list, list);
return 0;
}
int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type)
{
struct bdaddr_list *entry;
@ -2890,6 +2933,26 @@ int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type)
return 0;
}
int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr,
u8 type)
{
struct bdaddr_list_with_irk *entry;
if (!bacmp(bdaddr, BDADDR_ANY)) {
hci_bdaddr_list_clear(list);
return 0;
}
entry = hci_bdaddr_list_lookup_with_irk(list, bdaddr, type);
if (!entry)
return -ENOENT;
list_del(&entry->list);
kfree(entry);
return 0;
}
/* This function requires the caller holds hdev->lock */
struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
bdaddr_t *addr, u8 addr_type)

47
net/bluetooth/hci_event.c
View File

@ -1454,6 +1454,45 @@ static void hci_cc_le_write_def_data_len(struct hci_dev *hdev,
hdev->le_def_tx_time = le16_to_cpu(sent->tx_time);
}
static void hci_cc_le_add_to_resolv_list(struct hci_dev *hdev,
struct sk_buff *skb)
{
struct hci_cp_le_add_to_resolv_list *sent;
__u8 status = *((__u8 *) skb->data);
BT_DBG("%s status 0x%2.2x", hdev->name, status);
if (status)
return;
sent = hci_sent_cmd_data(hdev, HCI_OP_LE_ADD_TO_RESOLV_LIST);
if (!sent)
return;
hci_bdaddr_list_add_with_irk(&hdev->le_resolv_list, &sent->bdaddr,
sent->bdaddr_type, sent->peer_irk,
sent->local_irk);
}
static void hci_cc_le_del_from_resolv_list(struct hci_dev *hdev,
struct sk_buff *skb)
{
struct hci_cp_le_del_from_resolv_list *sent;
__u8 status = *((__u8 *) skb->data);
BT_DBG("%s status 0x%2.2x", hdev->name, status);
if (status)
return;
sent = hci_sent_cmd_data(hdev, HCI_OP_LE_DEL_FROM_RESOLV_LIST);
if (!sent)
return;
hci_bdaddr_list_del_with_irk(&hdev->le_resolv_list, &sent->bdaddr,
sent->bdaddr_type);
}
static void hci_cc_le_clear_resolv_list(struct hci_dev *hdev,
struct sk_buff *skb)
{
@ -3279,6 +3318,14 @@ static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb,
hci_cc_le_write_def_data_len(hdev, skb);
break;
case HCI_OP_LE_ADD_TO_RESOLV_LIST:
hci_cc_le_add_to_resolv_list(hdev, skb);
break;
case HCI_OP_LE_DEL_FROM_RESOLV_LIST:
hci_cc_le_del_from_resolv_list(hdev, skb);
break;
case HCI_OP_LE_CLEAR_RESOLV_LIST:
hci_cc_le_clear_resolv_list(hdev, skb);
break;