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-rw-r--r--net/atm/ioctl.c49
1 files changed, 43 insertions, 6 deletions
diff --git a/net/atm/ioctl.c b/net/atm/ioctl.c
index 7afd8e7754fd..76ed3c8d26e6 100644
--- a/net/atm/ioctl.c
+++ b/net/atm/ioctl.c
@@ -19,6 +19,7 @@
#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 */
@@ -46,7 +47,7 @@ void deregister_atm_ioctl(struct atm_ioctl *ioctl)
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;
@@ -80,13 +81,25 @@ int vcc_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
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 */
- error = sock_get_timestampns(sk, argp);
+#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- printk(KERN_WARNING "ATM_SETSC is obsolete\n");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+ printk(KERN_WARNING "ATM_SETSC is obsolete; used by %s:%d\n",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:
@@ -99,12 +112,23 @@ int vcc_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
* 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;
@@ -155,8 +179,21 @@ int vcc_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
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