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Bluetooth: Process extended ADV report event

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This patch enables Extended ADV report event if extended scanning
is supported in the controller and process the same.

The new features are not handled and for now its as good as
legacy ADV report.

> HCI Event: LE Meta Event (0x3e) plen 53
      LE Extended Advertising Report (0x0d)
        Num reports: 1
        Entry 0
          Event type: 0x0013
            Props: 0x0013
              Connectable
              Scannable
              Use legacy advertising PDUs
            Data status: Complete
          Legacy PDU Type: ADV_IND (0x0013)
          Address type: Random (0x01)
          Address: DB:7E:2E:1A:85:E8 (Static)
          Primary PHY: LE 1M
          Secondary PHY: LE 1M
          SID: 0x00
          TX power: 0 dBm
          RSSI: -90 dBm (0xa6)
          Periodic advertising invteral: 0.00 msec (0x0000)
          Direct address type: Public (0x00)
          Direct address: 00:00:00:00:00:00 (OUI 00-00-00)
          Data length: 0x1b
        0f 09 44 65 73 69 67 6e 65 72 20 4d 6f 75 73 65  ..Designer Mouse
        03 19 c2 03 02 01 05 03 03 12 18                 ...........

Signed-off-by: Jaganath Kanakkassery <jaganathx.kanakkassery@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Jaganath Kanakkassery 2018-07-06 17:05:29 +05:30 committed by Marcel Holtmann
parent a2344b9e3a
commit c215e9397b
3 changed files with 87 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
include/net/bluetooth/hci.h
View File

@ -1925,6 +1925,15 @@ struct hci_ev_le_conn_complete {
#define LE_ADV_SCAN_IND 0x02
#define LE_ADV_NONCONN_IND 0x03
#define LE_ADV_SCAN_RSP 0x04
#define LE_ADV_INVALID 0x05
/* Legacy event types in extended adv report */
#define LE_LEGACY_ADV_IND 0x0013
#define LE_LEGACY_ADV_DIRECT_IND 0x0015
#define LE_LEGACY_ADV_SCAN_IND 0x0012
#define LE_LEGACY_NONCONN_IND 0x0010
#define LE_LEGACY_SCAN_RSP_ADV 0x001b
#define LE_LEGACY_SCAN_RSP_ADV_SCAN 0x001a
#define ADDR_LE_DEV_PUBLIC 0x00
#define ADDR_LE_DEV_RANDOM 0x01
@ -1989,6 +1998,23 @@ struct hci_ev_le_direct_adv_info {
__s8 rssi;
} __packed;
#define HCI_EV_LE_EXT_ADV_REPORT 0x0d
struct hci_ev_le_ext_adv_report {
__le16 evt_type;
__u8 bdaddr_type;
bdaddr_t bdaddr;
__u8 primary_phy;
__u8 secondary_phy;
__u8 sid;
__u8 tx_power;
__s8 rssi;
__le16 interval;
__u8 direct_addr_type;
bdaddr_t direct_addr;
__u8 length;
__u8 data[0];
} __packed;
/* Internal events generated by Bluetooth stack */
#define HCI_EV_STACK_INTERNAL 0xfd
struct hci_ev_stack_internal {

9
net/bluetooth/hci_core.c
View File

@ -695,6 +695,15 @@ static int hci_init3_req(struct hci_request *req, unsigned long opt)
if (hdev->commands[35] & (0x20 | 0x40))
events[1] |= 0x08; /* LE PHY Update Complete */
/* If the controller supports LE Set Extended Scan Parameters
* and LE Set Extended Scan Enable commands, enable the
* corresponding event.
*/
if (use_ext_scan(hdev))
events[1] |= 0x10; /* LE Extended Advertising
* Report
*/
hci_req_add(req, HCI_OP_LE_SET_EVENT_MASK, sizeof(events),
events);

52
net/bluetooth/hci_event.c
View File

@ -5048,6 +5048,54 @@ static void hci_le_adv_report_evt(struct hci_dev *hdev, struct sk_buff *skb)
hci_dev_unlock(hdev);
}
static u8 convert_legacy_evt_type(u16 evt_type)
{
switch (evt_type) {
case LE_LEGACY_ADV_IND:
return LE_ADV_IND;
case LE_LEGACY_ADV_DIRECT_IND:
return LE_ADV_DIRECT_IND;
case LE_LEGACY_ADV_SCAN_IND:
return LE_ADV_SCAN_IND;
case LE_LEGACY_NONCONN_IND:
return LE_ADV_NONCONN_IND;
case LE_LEGACY_SCAN_RSP_ADV:
case LE_LEGACY_SCAN_RSP_ADV_SCAN:
return LE_ADV_SCAN_RSP;
}
BT_ERR_RATELIMITED("Unknown advertising packet type: 0x%02x",
evt_type);
return LE_ADV_INVALID;
}
static void hci_le_ext_adv_report_evt(struct hci_dev *hdev, struct sk_buff *skb)
{
u8 num_reports = skb->data[0];
void *ptr = &skb->data[1];
hci_dev_lock(hdev);
while (num_reports--) {
struct hci_ev_le_ext_adv_report *ev = ptr;
u8 legacy_evt_type;
u16 evt_type;
evt_type = __le16_to_cpu(ev->evt_type);
legacy_evt_type = convert_legacy_evt_type(evt_type);
if (legacy_evt_type != LE_ADV_INVALID) {
process_adv_report(hdev, legacy_evt_type, &ev->bdaddr,
ev->bdaddr_type, NULL, 0, ev->rssi,
ev->data, ev->length);
}
ptr += sizeof(*ev) + ev->length + 1;
}
hci_dev_unlock(hdev);
}
static void hci_le_remote_feat_complete_evt(struct hci_dev *hdev,
struct sk_buff *skb)
{
@ -5280,6 +5328,10 @@ static void hci_le_meta_evt(struct hci_dev *hdev, struct sk_buff *skb)
hci_le_direct_adv_report_evt(hdev, skb);
break;
case HCI_EV_LE_EXT_ADV_REPORT:
hci_le_ext_adv_report_evt(hdev, skb);
break;
default:
break;
}