C++ (Cpp) get_priv_descr_and_size Beispiele

Beispiel #1

Datei: lwip_wlpriv.c Projekt: Ga-vin/libsylixos

/*********************************************************************************************************
** 函数名称: ioctl_private_iw_point
** 功能描述: ioctl priv call
** 输　入  : 
** 输　出  : OK or ERROR
** 全局变量:
** 调用模块:
*********************************************************************************************************/
int ioctl_private_call (struct netif *dev, struct iwreq *iwr,
                        unsigned int cmd, struct iw_request_info *info,
                        iw_handler handler)
{
    int extra_size = 0, ret = -EINVAL;
    const struct iw_priv_args *descr;

    extra_size = get_priv_descr_and_size(dev, cmd, &descr);

    /* Check if we have a pointer to user space data or not. */
    if (extra_size == 0) {
        /* No extra arguments. Trivial to handle */
        ret = handler(dev, info, &(iwr->u), (char *) &(iwr->u));
    } else {
        ret = ioctl_private_iw_point(&iwr->u.data, cmd, descr,
                         handler, dev, info, extra_size);
    }

    /* Call commit handler if needed and defined */
    if (ret == -EIWCOMMIT) {
        ret = call_commit_handler(dev);
    }

    return  (ret);
}

Beispiel #2

Datei: wext-priv.c Projekt: A2109devs/lenovo_a2109a_kernel

int compat_private_call(struct net_device *dev, struct iwreq *iwr,
			unsigned int cmd, struct iw_request_info *info,
			iw_handler handler)
{
	const struct iw_priv_args *descr;
	int ret, extra_size;

	extra_size = get_priv_descr_and_size(dev, cmd, &descr);

	/* Check if we have a pointer to user space data or not. */
	if (extra_size == 0) {
		/* No extra arguments. Trivial to handle */
		ret = handler(dev, info, &(iwr->u), (char *) &(iwr->u));
	} else {
		struct compat_iw_point *iwp_compat;
		struct iw_point iwp;

		iwp_compat = (struct compat_iw_point *) &iwr->u.data;
		iwp.pointer = compat_ptr(iwp_compat->pointer);
		iwp.length = iwp_compat->length;
		iwp.flags = iwp_compat->flags;

		ret = ioctl_private_iw_point(&iwp, cmd, descr,
					     handler, dev, info, extra_size);

		iwp_compat->pointer = ptr_to_compat(iwp.pointer);
		iwp_compat->length = iwp.length;
		iwp_compat->flags = iwp.flags;
	}

	/* Call commit handler if needed and defined */
	if (ret == -EIWCOMMIT)
		ret = call_commit_handler(dev);

	return ret;
}