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: Marcel Holtmann <marcel@xxxxxxxxxxxx>
---
include/net/bluetooth/hci.h | 1 +
include/net/bluetooth/mgmt.h | 7 +++++++
net/bluetooth/mgmt.c | 16 ++++++++++++++++
3 files changed, 24 insertions(+)
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index ce757303dc07..a6ea156dc7e9 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -186,6 +186,7 @@ enum {
HCI_MGMT_UNCONF_INDEX_EVENTS,
HCI_MGMT_EXT_INDEX_EVENTS,
HCI_MGMT_GENERIC_EVENTS,
+ HCI_MGMT_OOB_DATA_EVENTS,
};
/*
diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h
index 543c1ba3d892..a1a68671bf88 100644
--- a/include/net/bluetooth/mgmt.h
+++ b/include/net/bluetooth/mgmt.h
@@ -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;
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 7fa3c4b8384b..72e41d29e301 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -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);
--
2.1.0
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