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Bluetooth: Use special function to send filter management index events

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For sending Index Added, Index Removed, Unconfigured Index Added and
Unconfigured Index Removed managment events the new helper functions
allows taking into account if these events are enabled for a certain
management socket or not.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Marcel Holtmann 2015-03-14 19:27:55 -07:00 committed by Johan Hedberg
parent 17711c6291
commit f920733885
3 changed files with 66 additions and 14 deletions
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6
include/net/bluetooth/hci.h
View File

@ -179,6 +179,12 @@ enum {
HCI_RESET,
};
/* HCI socket flags */
enum {
HCI_MGMT_INDEX_EVENTS,
HCI_MGMT_UNCONF_INDEX_EVENTS,
};
/*
* BR/EDR and/or LE controller flags: the flags defined here should represent
* states from the controller.

10
net/bluetooth/hci_sock.c
View File

@ -817,6 +817,16 @@ static int hci_sock_bind(struct socket *sock, struct sockaddr *addr,
goto done;
}
/* At the moment the index and unconfigured index events
* are enabled unconditionally. Setting them on each
* socket when binding keeps this functionality. They
* however might be cleared later and then sending of these
* events will be disabled, but that is then intentional.
*/
if (haddr.hci_channel == HCI_CHANNEL_CONTROL) {
hci_sock_set_flag(sk, HCI_MGMT_INDEX_EVENTS);
hci_sock_set_flag(sk, HCI_MGMT_UNCONF_INDEX_EVENTS);
}
break;
}

64
net/bluetooth/mgmt.c
View File

@ -250,6 +250,33 @@ static int mgmt_send_event(u16 event, struct hci_dev *hdev,
return 0;
}
static int mgmt_index_event(u16 event, struct hci_dev *hdev,
void *data, u16 data_len, int flag)
{
struct sk_buff *skb;
struct mgmt_hdr *hdr;
skb = alloc_skb(sizeof(*hdr) + data_len, GFP_KERNEL);
if (!skb)
return -ENOMEM;
hdr = (void *) skb_put(skb, sizeof(*hdr));
hdr->opcode = cpu_to_le16(event);
hdr->index = cpu_to_le16(hdev->id);
hdr->len = cpu_to_le16(data_len);
if (data)
memcpy(skb_put(skb, data_len), data, data_len);
/* Time stamp */
__net_timestamp(skb);
hci_send_to_flagged_channel(HCI_CHANNEL_CONTROL, skb, flag);
kfree_skb(skb);
return 0;
}
static int mgmt_event(u16 event, struct hci_dev *hdev, void *data, u16 len,
struct sock *skip_sk)
{
@ -6343,34 +6370,43 @@ done:
void mgmt_index_added(struct hci_dev *hdev)
{
if (hdev->dev_type != HCI_BREDR)
return;
if (test_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks))
return;
if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED))
mgmt_event(MGMT_EV_UNCONF_INDEX_ADDED, hdev, NULL, 0, NULL);
else
mgmt_event(MGMT_EV_INDEX_ADDED, hdev, NULL, 0, NULL);
switch (hdev->dev_type) {
case HCI_BREDR:
if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED)) {
mgmt_index_event(MGMT_EV_UNCONF_INDEX_ADDED, hdev,
NULL, 0, HCI_MGMT_UNCONF_INDEX_EVENTS);
} else {
mgmt_index_event(MGMT_EV_INDEX_ADDED, hdev, NULL, 0,
HCI_MGMT_INDEX_EVENTS);
}
break;
}
}
void mgmt_index_removed(struct hci_dev *hdev)
{
u8 status = MGMT_STATUS_INVALID_INDEX;
if (hdev->dev_type != HCI_BREDR)
return;
if (test_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks))
return;
mgmt_pending_foreach(0, hdev, cmd_complete_rsp, &status);
switch (hdev->dev_type) {
case HCI_BREDR:
mgmt_pending_foreach(0, hdev, cmd_complete_rsp, &status);
if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED))
mgmt_event(MGMT_EV_UNCONF_INDEX_REMOVED, hdev, NULL, 0, NULL);
else
mgmt_event(MGMT_EV_INDEX_REMOVED, hdev, NULL, 0, NULL);
if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED)) {
mgmt_index_event(MGMT_EV_UNCONF_INDEX_REMOVED, hdev,
NULL, 0, HCI_MGMT_UNCONF_INDEX_EVENTS);
} else {
mgmt_index_event(MGMT_EV_INDEX_REMOVED, hdev, NULL, 0,
HCI_MGMT_INDEX_EVENTS);
}
break;
}
}
/* This function requires the caller holds hdev->lock */