#include <net/netns/generic.h>
#include <net/rtnetlink.h>
#include <net/sock.h>
+#include <linux/seq_file.h>
#include <asm/uaccess.h>
return 0;
}
+#ifdef CONFIG_PROC_FS
+static int tun_chr_show_fdinfo(struct seq_file *m, struct file *f)
+{
+ struct tun_struct *tun;
+ struct ifreq ifr;
+
+ memset(&ifr, 0, sizeof(ifr));
+
+ rtnl_lock();
+ tun = tun_get(f);
+ if (tun)
+ tun_get_iff(current->nsproxy->net_ns, tun, &ifr);
+ rtnl_unlock();
+
+ if (tun)
+ tun_put(tun);
+
+ return seq_printf(m, "iff:\t%s\n", ifr.ifr_name);
+}
+#endif
+
static const struct file_operations tun_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
#endif
.open = tun_chr_open,
.release = tun_chr_close,
- .fasync = tun_chr_fasync
+ .fasync = tun_chr_fasync,
+#ifdef CONFIG_PROC_FS
+ .show_fdinfo = tun_chr_show_fdinfo,
+#endif
};
static struct miscdevice tun_miscdev = {