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Bluetooth: Add management events for controller addition & removal

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This patch adds Bluetooth Management interface events for controller
addition and removal. The events correspond to the existing HCI_DEV_REG
and HCI_DEV_UNREG stack internal events.

Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
This commit is contained in:
Johan Hedberg 2010-12-13 21:07:07 +02:00 committed by Gustavo F. Padovan
parent f7b64e69c7
commit c71e97bfaa
4 changed files with 55 additions and 0 deletions
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2
include/net/bluetooth/hci_core.h
View File

@ -662,6 +662,8 @@ void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
/* Management interface */
int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
int mgmt_index_added(u16 index);
int mgmt_index_removed(u16 index);
/* HCI info for socket */
#define hci_pi(sk) ((struct hci_pinfo *) sk)

10
include/net/bluetooth/mgmt.h
View File

@ -75,3 +75,13 @@ struct mgmt_ev_controller_error {
__le16 index;
__u8 error_code;
} __packed;
#define MGMT_EV_INDEX_ADDED 0x0004
struct mgmt_ev_index_added {
__le16 index;
} __packed;
#define MGMT_EV_INDEX_REMOVED 0x0005
struct mgmt_ev_index_removed {
__le16 index;
} __packed;

2
net/bluetooth/hci_core.c
View File

@ -960,6 +960,7 @@ int hci_register_dev(struct hci_dev *hdev)
}
}
mgmt_index_added(hdev->id);
hci_notify(hdev, HCI_DEV_REG);
return id;
@ -989,6 +990,7 @@ int hci_unregister_dev(struct hci_dev *hdev)
for (i = 0; i < NUM_REASSEMBLY; i++)
kfree_skb(hdev->reassembly[i]);
mgmt_index_removed(hdev->id);
hci_notify(hdev, HCI_DEV_UNREG);
if (hdev->rfkill) {

41
net/bluetooth/mgmt.c
View File

@ -265,3 +265,44 @@ done:
kfree(buf);
return err;
}
static int mgmt_event(u16 event, void *data, u16 data_len)
{
struct sk_buff *skb;
struct mgmt_hdr *hdr;
skb = alloc_skb(sizeof(*hdr) + data_len, GFP_ATOMIC);
if (!skb)
return -ENOMEM;
bt_cb(skb)->channel = HCI_CHANNEL_CONTROL;
hdr = (void *) skb_put(skb, sizeof(*hdr));
hdr->opcode = cpu_to_le16(event);
hdr->len = cpu_to_le16(data_len);
memcpy(skb_put(skb, data_len), data, data_len);
hci_send_to_sock(NULL, skb);
kfree_skb(skb);
return 0;
}
int mgmt_index_added(u16 index)
{
struct mgmt_ev_index_added ev;
put_unaligned_le16(index, &ev.index);
return mgmt_event(MGMT_EV_INDEX_ADDED, &ev, sizeof(ev));
}
int mgmt_index_removed(u16 index)
{
struct mgmt_ev_index_added ev;
put_unaligned_le16(index, &ev.index);
return mgmt_event(MGMT_EV_INDEX_REMOVED, &ev, sizeof(ev));
}