The LE advertising list should be cleared when a LE scanning is
performed. This will force the list to contain only fresh advertising
entries.
In order to achieve that, it was added a handler to the Command
Complete Event generated by the LE Set Scan Enable Command.
Signed-off-by: Andre Guedes <andre.guedes@xxxxxxxxxxxxx>
---
include/net/bluetooth/hci.h | 2 ++
include/net/bluetooth/hci_core.h | 1 +
net/bluetooth/hci_core.c | 2 +-
net/bluetooth/hci_event.c | 23 +++++++++++++++++++++++
4 files changed, 27 insertions(+), 1 deletions(-)
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index fdcc494..1786794 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -670,6 +670,8 @@ struct hci_rp_le_read_buffer_size {
__u8 le_max_pkt;
} __packed;
+#define HCI_OP_LE_SET_SCAN_ENABLE 0x200c
+
#define HCI_OP_LE_CREATE_CONN 0x200d
struct hci_cp_le_create_conn {
__le16 scan_interval;
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index bf7b5df..3ead365 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -517,6 +517,7 @@ int hci_add_link_key(struct hci_dev *hdev, int new_key, bdaddr_t *bdaddr,
u8 *key, u8 type, u8 pin_len);
int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
+int hci_adv_entries_clear(struct hci_dev *hdev);
struct adv_entry *hci_find_adv_entry(struct hci_dev *hdev, bdaddr_t *bdaddr);
int hci_add_adv_entry(struct hci_dev *hdev,
struct hci_ev_le_advertising_info *ev);
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 71f8788..8f9b3a5 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1081,7 +1081,7 @@ static void hci_cmd_timer(unsigned long arg)
tasklet_schedule(&hdev->cmd_task);
}
-static int hci_adv_entries_clear(struct hci_dev *hdev)
+int hci_adv_entries_clear(struct hci_dev *hdev)
{
struct list_head *p, *n;
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 825de59..a07ed86 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -843,6 +843,25 @@ static void hci_cc_le_ltk_neg_reply(struct hci_dev *hdev, struct sk_buff *skb)
hci_req_complete(hdev, HCI_OP_LE_LTK_NEG_REPLY, rp->status);
}
+static void hci_cc_le_set_scan_enable(struct hci_dev *hdev,
+ struct sk_buff *skb)
+{
+ void *sent;
+ __u8 param_scan_enable;
+ __u8 status = *((__u8 *) skb->data);
+
+ if (status)
+ return;
+
+ sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_ENABLE);
+ if (!sent)
+ return;
+
+ param_scan_enable = *((__u8 *) sent);
+ if (param_scan_enable == 0x01)
+ hci_adv_entries_clear(hdev);
+}
+
static inline void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
{
BT_DBG("%s status 0x%x", hdev->name, status);
@@ -1799,6 +1818,10 @@ static inline void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *sk
hci_cc_le_ltk_neg_reply(hdev, skb);
break;
+ case HCI_OP_LE_SET_SCAN_ENABLE:
+ hci_cc_le_set_scan_enable(hdev, skb);
+ break;
+
default:
BT_DBG("%s opcode 0x%x", hdev->name, opcode);
break;
--
1.7.1
--
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