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Bluetooth: btusb: Detect if an ACL packet is in fact an ISO packet

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Fix up the packet type if ISO packets are sent over the bulk endpoint.

Note: This is a stopgap since the Bluetooth specification currently
doesn't define any endpoint to transport ISO packets.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This commit is contained in:
Luiz Augusto von Dentz 2019-10-28 20:25:02 +02:00
parent 70405f0272
commit 14202eff21
1 changed files with 10 additions and 0 deletions
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10
drivers/bluetooth/btusb.c
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@ -911,11 +911,21 @@ static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
hci_skb_expect(skb) -= len;
if (skb->len == HCI_ACL_HDR_SIZE) {
__u16 handle = __le16_to_cpu(hci_acl_hdr(skb)->handle);
__le16 dlen = hci_acl_hdr(skb)->dlen;
__u8 type;
/* Complete ACL header */
hci_skb_expect(skb) = __le16_to_cpu(dlen);
/* Detect if ISO packet has been sent over bulk */
if (hci_conn_num(data->hdev, ISO_LINK)) {
type = hci_conn_lookup_type(data->hdev,
hci_handle(handle));
if (type == ISO_LINK)
hci_skb_pkt_type(skb) = HCI_ISODATA_PKT;
}
if (skb_tailroom(skb) < hci_skb_expect(skb)) {
kfree_skb(skb);
skb = NULL;