Commit 72000df2 authored by Marcel Holtmann's avatar Marcel Holtmann Committed by Johan Hedberg
Browse files

Bluetooth: Add support for Local OOB Extended Data Update events 



When a different user requests a new set of local out-of-band data, then
inform all previous users that the data has been updated. To limit the
scope of users, the updates are limited to previous users. If a user has
never requested out-of-band data, it will also not see the update.

Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: default avatarJohan Hedberg <johan.hedberg@intel.com>
parent 5425f98e

include/net/bluetooth/hci.h

+1 −0
Original line number Diff line number Diff line
@@ -186,6 +186,7 @@ enum { 
	HCI_MGMT_UNCONF_INDEX_EVENTS,

	HCI_MGMT_EXT_INDEX_EVENTS,

	HCI_MGMT_GENERIC_EVENTS,

	HCI_MGMT_OOB_DATA_EVENTS,

};



/*

include/net/bluetooth/mgmt.h

+7 −0
Original line number Diff line number Diff line
@@ -735,3 +735,10 @@ struct mgmt_ev_ext_index { 
#define MGMT_EV_EXT_INDEX_ADDED		0x0020



#define MGMT_EV_EXT_INDEX_REMOVED	0x0021



#define MGMT_EV_LOCAL_OOB_DATA_UPDATED	0x0022

struct mgmt_ev_local_oob_data_updated {

	__u8    type;

	__le16	eir_len;

	__u8	eir[0];

} __packed;

net/bluetooth/mgmt.c

+16 −0
Original line number Diff line number Diff line
@@ -133,6 +133,7 @@ static const u16 mgmt_events[] = { 
	MGMT_EV_NEW_CONFIG_OPTIONS,

	MGMT_EV_EXT_INDEX_ADDED,

	MGMT_EV_EXT_INDEX_REMOVED,

	MGMT_EV_LOCAL_OOB_DATA_UPDATED,

};



#define CACHE_TIMEOUT	msecs_to_jiffies(2 * 1000)
@@ -262,6 +263,13 @@ static int mgmt_index_event(u16 event, struct hci_dev *hdev, void *data, 
			       flag, NULL);

}



static int mgmt_limited_event(u16 event, struct hci_dev *hdev, void *data,

			      u16 len, int flag, struct sock *skip_sk)

{

	return mgmt_send_event(event, hdev, HCI_CHANNEL_CONTROL, data, len,

			       flag, skip_sk);

}



static int mgmt_generic_event(u16 event, struct hci_dev *hdev, void *data,

			      u16 len, struct sock *skip_sk)

{
@@ -6387,8 +6395,16 @@ static int read_local_oob_ext_data(struct sock *sk, struct hci_dev *hdev, 


	hci_dev_unlock(hdev);



	hci_sock_set_flag(sk, HCI_MGMT_OOB_DATA_EVENTS);



	err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_EXT_DATA,

				MGMT_STATUS_SUCCESS, rp, sizeof(*rp) + eir_len);

	if (err < 0)

		goto done;



	err = mgmt_limited_event(MGMT_EV_LOCAL_OOB_DATA_UPDATED, hdev,

				 rp, sizeof(*rp) + eir_len,

				 HCI_MGMT_OOB_DATA_EVENTS, sk);



done:

	kfree(rp);

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