-#endif
-
-struct ipv4_config ipv4_config;
-
-#ifdef CONFIG_SYSCTL
-
-static
-int ipv4_sysctl_forward(ctl_table *ctl, int write, struct file * filp,
- void __user *buffer, size_t *lenp, loff_t *ppos)
-{
- int val = IPV4_DEVCONF_ALL(FORWARDING);
- int ret;
-
- ret = proc_dointvec(ctl, write, filp, buffer, lenp, ppos);
-
- if (write && IPV4_DEVCONF_ALL(FORWARDING) != val)
- inet_forward_change();
-
- return ret;
-}
-
-static int ipv4_sysctl_forward_strategy(ctl_table *table,
- int __user *name, int nlen,
- void __user *oldval, size_t __user *oldlenp,
- void __user *newval, size_t newlen)
-{
- int *valp = table->data;
- int new;
-
- if (!newval || !newlen)
- return 0;
-
- if (newlen != sizeof(int))
- return -EINVAL;
-
- if (get_user(new, (int __user *)newval))
- return -EFAULT;
-
- if (new == *valp)
- return 0;
-
- if (oldval && oldlenp) {
- size_t len;
-
- if (get_user(len, oldlenp))
- return -EFAULT;
-
- if (len) {
- if (len > table->maxlen)
- len = table->maxlen;
- if (copy_to_user(oldval, valp, len))
- return -EFAULT;
- if (put_user(len, oldlenp))
- return -EFAULT;
- }
- }
-
- *valp = new;
- inet_forward_change();
- return 1;
-}