/* 2003 John Levon <levon@movementarian.org> */
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/kmod.h>
#include <linux/net.h> /* struct socket, struct proto_ops */
#include <linux/atmmpc.h>
#include <net/atmclip.h>
#include <linux/atmlec.h>
+#include <linux/mutex.h>
#include <asm/ioctls.h>
+#include <net/compat.h>
#include "resources.h"
#include "signaling.h" /* for WAITING and sigd_attach */
#include "common.h"
-static DECLARE_MUTEX(ioctl_mutex);
+static DEFINE_MUTEX(ioctl_mutex);
static LIST_HEAD(ioctl_list);
void register_atm_ioctl(struct atm_ioctl *ioctl)
{
- down(&ioctl_mutex);
+ mutex_lock(&ioctl_mutex);
list_add_tail(&ioctl->list, &ioctl_list);
- up(&ioctl_mutex);
+ mutex_unlock(&ioctl_mutex);
}
void deregister_atm_ioctl(struct atm_ioctl *ioctl)
{
- down(&ioctl_mutex);
+ mutex_lock(&ioctl_mutex);
list_del(&ioctl->list);
- up(&ioctl_mutex);
+ mutex_unlock(&ioctl_mutex);
}
EXPORT_SYMBOL(register_atm_ioctl);
EXPORT_SYMBOL(deregister_atm_ioctl);
-int vcc_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
+static int do_vcc_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg, int compat)
{
struct sock *sk = sock->sk;
struct atm_vcc *vcc;
}
skb = skb_peek(&sk->sk_receive_queue);
error = put_user(skb ? skb->len : 0,
- (int __user *)argp) ? -EFAULT : 0;
+ (int __user *)argp) ? -EFAULT : 0;
goto done;
}
case SIOCGSTAMP: /* borrowed from IP */
- error = sock_get_timestamp(sk, argp);
+#ifdef CONFIG_COMPAT
+ if (compat)
+ error = compat_sock_get_timestamp(sk, argp);
+ else
+#endif
+ error = sock_get_timestamp(sk, argp);
+ goto done;
+ case SIOCGSTAMPNS: /* borrowed from IP */
+#ifdef CONFIG_COMPAT
+ if (compat)
+ error = compat_sock_get_timestampns(sk, argp);
+ else
+#endif
+ error = sock_get_timestampns(sk, argp);
goto done;
case ATM_SETSC:
- printk(KERN_WARNING "ATM_SETSC is obsolete\n");
+ if (net_ratelimit())
+ printk(KERN_WARNING "ATM_SETSC is obsolete; used by %s:%d\n",
+ current->comm, task_pid_nr(current));
error = 0;
goto done;
case ATMSIGD_CTRL:
* info uses kernel pointers as opaque references,
* so the holder of the file descriptor can scribble
* on the kernel... so we should make sure that we
- * have the same privledges that /proc/kcore needs
+ * have the same privileges that /proc/kcore needs
*/
if (!capable(CAP_SYS_RAWIO)) {
error = -EPERM;
goto done;
}
+#ifdef CONFIG_COMPAT
+ /* WTF? I don't even want to _think_ about making this
+ work for 32-bit userspace. TBH I don't really want
+ to think about it at all. dwmw2. */
+ if (compat) {
+ if (net_ratelimit())
+ printk(KERN_WARNING "32-bit task cannot be atmsigd\n");
+ error = -EINVAL;
+ goto done;
+ }
+#endif
error = sigd_attach(vcc);
if (!error)
sock->state = SS_CONNECTED;
error = -ENOIOCTLCMD;
- down(&ioctl_mutex);
+ mutex_lock(&ioctl_mutex);
list_for_each(pos, &ioctl_list) {
struct atm_ioctl * ic = list_entry(pos, struct atm_ioctl, list);
if (try_module_get(ic->owner)) {
break;
}
}
- up(&ioctl_mutex);
+ mutex_unlock(&ioctl_mutex);
if (error != -ENOIOCTLCMD)
goto done;
- error = atm_dev_ioctl(cmd, argp);
+ error = atm_dev_ioctl(cmd, argp, compat);
done:
return error;
}
+
+
+int vcc_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
+{
+ return do_vcc_ioctl(sock, cmd, arg, 0);
+}
+
+#ifdef CONFIG_COMPAT
+int vcc_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
+{
+ return do_vcc_ioctl(sock, cmd, arg, 1);
+}
+#endif