C++ (Cpp) vhci_create_device Examples

Example #1

File: hci_vhci.c Project: PimsJay01/myscripts

static void vhci_open_timeout(struct work_struct *work)
{
	struct vhci_data *data = container_of(work, struct vhci_data,
					      open_timeout.work);

	vhci_create_device(data, amp ? HCI_AMP : HCI_BREDR);
}

Example #2

File: hci_vhci.c Project: TheDarkCode/linux

static inline ssize_t vhci_get_user(struct vhci_data *data,
				    struct iov_iter *from)
{
	size_t len = iov_iter_count(from);
	struct sk_buff *skb;
	__u8 pkt_type, opcode;
	int ret;

	if (len < 2 || len > HCI_MAX_FRAME_SIZE)
		return -EINVAL;

	skb = bt_skb_alloc(len, GFP_KERNEL);
	if (!skb)
		return -ENOMEM;

	if (copy_from_iter(skb_put(skb, len), len, from) != len) {
		kfree_skb(skb);
		return -EFAULT;
	}

	pkt_type = *((__u8 *) skb->data);
	skb_pull(skb, 1);

	switch (pkt_type) {
	case HCI_EVENT_PKT:
	case HCI_ACLDATA_PKT:
	case HCI_SCODATA_PKT:
		if (!data->hdev) {
			kfree_skb(skb);
			return -ENODEV;
		}

		hci_skb_pkt_type(skb) = pkt_type;

		ret = hci_recv_frame(data->hdev, skb);
		break;

	case HCI_VENDOR_PKT:
		cancel_delayed_work_sync(&data->open_timeout);

		opcode = *((__u8 *) skb->data);
		skb_pull(skb, 1);

		if (skb->len > 0) {
			kfree_skb(skb);
			return -EINVAL;
		}

		kfree_skb(skb);

		ret = vhci_create_device(data, opcode);
		break;

	default:
		kfree_skb(skb);
		return -EINVAL;
	}

	return (ret < 0) ? ret : len;
}

Example #3

File: hci_vhci.c Project: PimsJay01/myscripts

static inline ssize_t vhci_get_user(struct vhci_data *data,
				    struct iov_iter *from)
{
	size_t len = iov_iter_count(from);
	struct sk_buff *skb;
	__u8 pkt_type, opcode;
	int ret;
#else
static inline ssize_t vhci_get_user(struct vhci_data *data,
				    const struct iovec *iov,
				    unsigned long count)
{
	size_t len = iov_length(iov, count);
	struct sk_buff *skb;
	__u8 pkt_type, opcode;
	unsigned long i;
	int ret;
#endif

	if (len < 2 || len > HCI_MAX_FRAME_SIZE)
		return -EINVAL;

	skb = bt_skb_alloc(len, GFP_KERNEL);
	if (!skb)
		return -ENOMEM;

#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,18,0)
	if (copy_from_iter(skb_put(skb, len), len, from) != len) {
		kfree_skb(skb);
		return -EFAULT;
	}
#else
	for (i = 0; i < count; i++) {
		if (copy_from_user(skb_put(skb, iov[i].iov_len),
				   iov[i].iov_base, iov[i].iov_len)) {
			kfree_skb(skb);
			return -EFAULT;
		}
	}
#endif

	pkt_type = *((__u8 *) skb->data);
	skb_pull(skb, 1);

	switch (pkt_type) {
	case HCI_EVENT_PKT:
	case HCI_ACLDATA_PKT:
	case HCI_SCODATA_PKT:
		if (!data->hdev) {
			kfree_skb(skb);
			return -ENODEV;
		}

		bt_cb(skb)->pkt_type = pkt_type;

		ret = hci_recv_frame(data->hdev, skb);
		break;

	case HCI_VENDOR_PKT:
		if (data->hdev) {
			kfree_skb(skb);
			return -EBADFD;
		}

		cancel_delayed_work_sync(&data->open_timeout);

		opcode = *((__u8 *) skb->data);
		skb_pull(skb, 1);

		if (skb->len > 0) {
			kfree_skb(skb);
			return -EINVAL;
		}

		kfree_skb(skb);

		ret = vhci_create_device(data, opcode);
		break;

	default:
		kfree_skb(skb);
		return -EINVAL;
	}

	return (ret < 0) ? ret : len;
}

Example #4

File: hci_vhci.c Project: jyizheng/LinuxViewPageTables

static inline ssize_t vhci_get_user(struct vhci_data *data,
				    const char __user *buf, size_t count)
{
	struct sk_buff *skb;
	__u8 pkt_type, dev_type;
	int ret;

	if (count < 2 || count > HCI_MAX_FRAME_SIZE)
		return -EINVAL;

	skb = bt_skb_alloc(count, GFP_KERNEL);
	if (!skb)
		return -ENOMEM;

	if (copy_from_user(skb_put(skb, count), buf, count)) {
		kfree_skb(skb);
		return -EFAULT;
	}

	pkt_type = *((__u8 *) skb->data);
	skb_pull(skb, 1);

	switch (pkt_type) {
	case HCI_EVENT_PKT:
	case HCI_ACLDATA_PKT:
	case HCI_SCODATA_PKT:
		if (!data->hdev) {
			kfree_skb(skb);
			return -ENODEV;
		}

		bt_cb(skb)->pkt_type = pkt_type;

		ret = hci_recv_frame(data->hdev, skb);
		break;

	case HCI_VENDOR_PKT:
		if (data->hdev) {
			kfree_skb(skb);
			return -EBADFD;
		}

		cancel_delayed_work_sync(&data->open_timeout);

		dev_type = *((__u8 *) skb->data);
		skb_pull(skb, 1);

		if (skb->len > 0) {
			kfree_skb(skb);
			return -EINVAL;
		}

		kfree_skb(skb);

		if (dev_type != HCI_BREDR && dev_type != HCI_AMP)
			return -EINVAL;

		ret = vhci_create_device(data, dev_type);
		break;

	default:
		kfree_skb(skb);
		return -EINVAL;
	}

	return (ret < 0) ? ret : count;
}