[NET]: Kill NETLINK_DEV and its only user, ethertap.

This stuff has been scheduled to die for 2 years.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 278 deletions

diff --git a/net/netlink/netlink_dev.c b/net/netlink/netlink_dev.c
deleted file mode 100644
index 59f53de4b86b..000000000000
--- a/net/netlink/netlink_dev.c
+++ /dev/null
@@ -1,278 +0,0 @@
-/*
- * NETLINK	An implementation of a loadable kernel mode driver providing
- *		multiple kernel/user space bidirectional communications links.
- *
- * 		Author: 	Alan Cox <alan@redhat.com>
- *
- *		This program is free software; you can redistribute it and/or
- *		modify it under the terms of the GNU General Public License
- *		as published by the Free Software Foundation; either version
- *		2 of the License, or (at your option) any later version.
- * 
- *	Now netlink devices are emulated on the top of netlink sockets
- *	by compatibility reasons. Remove this file after a period. --ANK
- *
- */
-
-#include <linux/module.h>
-
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/major.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/skbuff.h>
-#include <linux/netlink.h>
-#include <linux/poll.h>
-#include <linux/init.h>
-#include <linux/devfs_fs_kernel.h>
-#include <linux/smp_lock.h>
-#include <linux/device.h>
-#include <linux/bitops.h>
-
-#include <asm/system.h>
-#include <asm/uaccess.h>
-
-static long open_map;
-static struct socket *netlink_user[MAX_LINKS];
-static struct class_simple *netlink_class;
-
-/*
- *	Device operations
- */
- 
-static unsigned int netlink_poll(struct file *file, poll_table * wait)
-{
-	struct socket *sock = netlink_user[iminor(file->f_dentry->d_inode)];
-
-	if (sock->ops->poll==NULL)
-		return 0;
-	return sock->ops->poll(file, sock, wait);
-}
-
-/*
- *	Write a message to the kernel side of a communication link
- */
- 
-static ssize_t netlink_write(struct file * file, const char __user * buf,
-			     size_t count, loff_t *pos)
-{
-	struct inode *inode = file->f_dentry->d_inode;
-	struct socket *sock = netlink_user[iminor(inode)];
-	struct msghdr msg;
-	struct iovec iov;
-
-	iov.iov_base = (void __user*)buf;
-	iov.iov_len = count;
-	msg.msg_name=NULL;
-	msg.msg_namelen=0;
-	msg.msg_controllen=0;
-	msg.msg_flags=0;
-	msg.msg_iov=&iov;
-	msg.msg_iovlen=1;
-
-	return sock_sendmsg(sock, &msg, count);
-}
-
-/*
- *	Read a message from the kernel side of the communication link
- */
-
-static ssize_t netlink_read(struct file * file, char __user * buf,
-			    size_t count, loff_t *pos)
-{
-	struct inode *inode = file->f_dentry->d_inode;
-	struct socket *sock = netlink_user[iminor(inode)];
-	struct msghdr msg;
-	struct iovec iov;
-
-	iov.iov_base = buf;
-	iov.iov_len = count;
-	msg.msg_name=NULL;
-	msg.msg_namelen=0;
-	msg.msg_controllen=0;
-	msg.msg_flags=0;
-	msg.msg_iov=&iov;
-	msg.msg_iovlen=1;
-	if (file->f_flags&O_NONBLOCK)
-		msg.msg_flags=MSG_DONTWAIT;
-
-	return sock_recvmsg(sock, &msg, count, msg.msg_flags);
-}
-
-static int netlink_open(struct inode * inode, struct file * file)
-{
-	unsigned int minor = iminor(inode);
-	struct socket *sock;
-	struct sockaddr_nl nladdr;
-	int err;
-
-	if (minor>=MAX_LINKS)
-		return -ENODEV;
-	if (test_and_set_bit(minor, &open_map))
-		return -EBUSY;
-
-	err = sock_create_kern(PF_NETLINK, SOCK_RAW, minor, &sock);
-	if (err < 0)
-		goto out;
-
-	memset(&nladdr, 0, sizeof(nladdr));
-	nladdr.nl_family = AF_NETLINK;
-	nladdr.nl_groups = ~0;
-	if ((err = sock->ops->bind(sock, (struct sockaddr*)&nladdr, sizeof(nladdr))) < 0) {
-		sock_release(sock);
-		goto out;
-	}
-
-	netlink_user[minor] = sock;
-	return 0;
-
-out:
-	clear_bit(minor, &open_map);
-	return err;
-}
-
-static int netlink_release(struct inode * inode, struct file * file)
-{
-	unsigned int minor = iminor(inode);
-	struct socket *sock;
-
-	sock = netlink_user[minor];
-	netlink_user[minor] = NULL;
-	clear_bit(minor, &open_map);
-	sock_release(sock);
-	return 0;
-}
-
-
-static int netlink_ioctl(struct inode *inode, struct file *file,
-		    unsigned int cmd, unsigned long arg)
-{
-	unsigned int minor = iminor(inode);
-	int retval = 0;
-
-	if (minor >= MAX_LINKS)
-		return -ENODEV;
-	switch ( cmd ) {
-		default:
-			retval = -EINVAL;
-	}
-	return retval;
-}
-
-
-static struct file_operations netlink_fops = {
-	.owner =	THIS_MODULE,
-	.llseek =	no_llseek,
-	.read =		netlink_read,
-	.write =	netlink_write,
-	.poll =		netlink_poll,
-	.ioctl =	netlink_ioctl,
-	.open =		netlink_open,
-	.release =	netlink_release,
-};
-
-static struct {
-	char *name;
-	int minor;
-} entries[] = {
-	{
-		.name	= "route",
-		.minor	= NETLINK_ROUTE,
-	},
-	{
-		.name	= "skip",
-		.minor	= NETLINK_SKIP,
-	},
-	{
-		.name	= "usersock",
-		.minor	= NETLINK_USERSOCK,
-	},
-	{
-		.name	= "fwmonitor",
-		.minor	= NETLINK_FIREWALL,
-	},
-	{
-		.name	= "tcpdiag",
-		.minor	= NETLINK_TCPDIAG,
-	},
-	{
-		.name	= "nflog",
-		.minor	= NETLINK_NFLOG,
-	},
-	{
-		.name	= "xfrm",
-		.minor	= NETLINK_XFRM,
-	},
-	{
-		.name	= "arpd",
-		.minor	= NETLINK_ARPD,
-	},
-	{
-		.name	= "route6",
-		.minor	= NETLINK_ROUTE6,
-	},
-	{
-		.name	= "ip6_fw",
-		.minor	= NETLINK_IP6_FW,
-	},
-	{
-		.name	= "dnrtmsg",
-		.minor	= NETLINK_DNRTMSG,
-	},
-};
-
-static int __init init_netlink(void)
-{
-	int i;
-
-	if (register_chrdev(NETLINK_MAJOR,"netlink", &netlink_fops)) {
-		printk(KERN_ERR "netlink: unable to get major %d\n", NETLINK_MAJOR);
-		return -EIO;
-	}
-
-	netlink_class = class_simple_create(THIS_MODULE, "netlink");
-	if (IS_ERR(netlink_class)) {
-		printk (KERN_ERR "Error creating netlink class.\n");
-		unregister_chrdev(NETLINK_MAJOR, "netlink");
-		return PTR_ERR(netlink_class);
-	}
-
-	devfs_mk_dir("netlink");
-
-	/*  Someone tell me the official names for the uppercase ones  */
-	for (i = 0; i < ARRAY_SIZE(entries); i++) {
-		devfs_mk_cdev(MKDEV(NETLINK_MAJOR, entries[i].minor),
-			S_IFCHR|S_IRUSR|S_IWUSR, "netlink/%s", entries[i].name);
-		class_simple_device_add(netlink_class, MKDEV(NETLINK_MAJOR, entries[i].minor), NULL, "%s", entries[i].name);
-	}
-
-	for (i = 0; i < 16; i++) {
-		devfs_mk_cdev(MKDEV(NETLINK_MAJOR, i + 16),
-			S_IFCHR|S_IRUSR|S_IWUSR, "netlink/tap%d", i);
-		class_simple_device_add(netlink_class, MKDEV(NETLINK_MAJOR, i + 16), NULL, "tap%d", i);
-	}
-
-	return 0;
-}
-
-static void __exit cleanup_netlink(void)
-{
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(entries); i++) {
-		devfs_remove("netlink/%s", entries[i].name);
-		class_simple_device_remove(MKDEV(NETLINK_MAJOR, entries[i].minor));
-	}
-	for (i = 0; i < 16; i++) {
-		devfs_remove("netlink/tap%d", i);
-		class_simple_device_remove(MKDEV(NETLINK_MAJOR, i + 16));
-	}
-	devfs_remove("netlink");
-	class_simple_destroy(netlink_class);
-	unregister_chrdev(NETLINK_MAJOR, "netlink");
-}
-
-MODULE_LICENSE("GPL");
-module_init(init_netlink);
-module_exit(cleanup_netlink);