/* 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/atmdev.h>
#include <linux/atmclip.h> /* CLIP_*ENCAP */
#include <linux/atmarp.h> /* manifest constants */
+#include <linux/capability.h>
#include <linux/sonet.h> /* for ioctls */
#include <linux/atmsvc.h>
#include <linux/atmmpc.h>
#include <net/atmclip.h>
#include <linux/atmlec.h>
+#include <linux/mutex.h>
#include <asm/ioctls.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);
int vcc_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
{
+ struct sock *sk = sock->sk;
struct atm_vcc *vcc;
int error;
struct list_head * pos;
error = -EINVAL;
goto done;
}
- error = put_user(vcc->sk->sk_sndbuf -
- atomic_read(&vcc->sk->sk_wmem_alloc),
+ error = put_user(sk->sk_sndbuf -
+ atomic_read(&sk->sk_wmem_alloc),
(int __user *) argp) ? -EFAULT : 0;
goto done;
case SIOCINQ:
error = -EINVAL;
goto done;
}
- skb = skb_peek(&vcc->sk->sk_receive_queue);
+ skb = skb_peek(&sk->sk_receive_queue);
error = put_user(skb ? skb->len : 0,
(int __user *)argp) ? -EFAULT : 0;
goto done;
}
case SIOCGSTAMP: /* borrowed from IP */
- error = sock_get_timestamp(vcc->sk, argp);
+ error = sock_get_timestamp(sk, argp);
goto done;
case ATM_SETSC:
printk(KERN_WARNING "ATM_SETSC is obsolete\n");
if (!error)
sock->state = SS_CONNECTED;
goto done;
- default:
+ case ATM_SETBACKEND:
+ case ATM_NEWBACKENDIF:
+ {
+ atm_backend_t backend;
+ error = get_user(backend, (atm_backend_t __user *) argp);
+ if (error)
+ goto done;
+ switch (backend) {
+ case ATM_BACKEND_PPP:
+ request_module("pppoatm");
+ break;
+ case ATM_BACKEND_BR2684:
+ request_module("br2684");
+ break;
+ }
+ }
+ break;
+ case ATMMPC_CTRL:
+ case ATMMPC_DATA:
+ request_module("mpoa");
+ break;
+ case ATMARPD_CTRL:
+ request_module("clip");
+ break;
+ case ATMLEC_CTRL:
+ request_module("lec");
break;
}
- if (cmd == ATMMPC_CTRL || cmd == ATMMPC_DATA)
- request_module("mpoa");
- if (cmd == ATMARPD_CTRL)
- request_module("clip");
- if (cmd == ATMLEC_CTRL)
- request_module("lec");
-
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;