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No kernel handles in userspace; Domain creation.

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This commit is contained in:
Florian Pose
2008-10-02 10:19:02 +00:00
parent 6c484fa19a
commit cd4bb0a38b
9 changed files with 247 additions and 32 deletions
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master/cdev.c
+30 -7
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@@ -1373,22 +1373,41 @@ int ec_cdev_ioctl_request(
ec_cdev_priv_t *priv /**< Private data structure of file handle. */
)
{
ec_ioctl_request_t data;
ec_master_t *m;
int ret = 0;
data.handle = ecrt_request_master(master->index);
if (IS_ERR(data.handle)) {
ret = PTR_ERR(data.handle);
m = ecrt_request_master(master->index);
if (IS_ERR(m)) {
ret = PTR_ERR(m);
} else {
priv->requested = 1;
if (copy_to_user((void __user *) arg, &data, sizeof(data)))
ret = -EFAULT;
}
return ret;
}
/*****************************************************************************/
/** Create a domain.
*/
int ec_cdev_ioctl_create_domain(
ec_master_t *master, /**< EtherCAT master. */
unsigned long arg, /**< ioctl() argument. */
ec_cdev_priv_t *priv /**< Private data structure of file handle. */
)
{
ec_domain_t *domain;
if (unlikely(!priv->requested))
return -EPERM;
domain = ecrt_master_create_domain(master);
if (!domain)
return -ENOMEM;
return domain->index;
}
/******************************************************************************
* File operations
*****************************************************************************/
@@ -1506,6 +1525,10 @@ long eccdev_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
if (!(filp->f_mode & FMODE_WRITE))
return -EPERM;
return ec_cdev_ioctl_request(master, arg, priv);
case EC_IOCTL_CREATE_DOMAIN:
if (!(filp->f_mode & FMODE_WRITE))
return -EPERM;
return ec_cdev_ioctl_create_domain(master, arg, priv);
default:
return -ENOTTY;
}