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Diffstat (limited to 'net/core/dev_mcast.c')
-rw-r--r--net/core/dev_mcast.c232
1 files changed, 0 insertions, 232 deletions
diff --git a/net/core/dev_mcast.c b/net/core/dev_mcast.c
deleted file mode 100644
index 3dc295beb483..000000000000
--- a/net/core/dev_mcast.c
+++ /dev/null
@@ -1,232 +0,0 @@
-/*
- * Linux NET3: Multicast List maintenance.
- *
- * Authors:
- * Tim Kordas <tjk@nostromo.eeap.cwru.edu>
- * Richard Underwood <richard@wuzz.demon.co.uk>
- *
- * Stir fried together from the IP multicast and CAP patches above
- * Alan Cox <alan@lxorguk.ukuu.org.uk>
- *
- * Fixes:
- * Alan Cox : Update the device on a real delete
- * rather than any time but...
- * Alan Cox : IFF_ALLMULTI support.
- * Alan Cox : New format set_multicast_list() calls.
- * Gleb Natapov : Remove dev_mc_lock.
- *
- * 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.
- */
-
-#include <linux/module.h>
-#include <asm/uaccess.h>
-#include <asm/system.h>
-#include <linux/bitops.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/socket.h>
-#include <linux/sockios.h>
-#include <linux/in.h>
-#include <linux/errno.h>
-#include <linux/interrupt.h>
-#include <linux/if_ether.h>
-#include <linux/inet.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <linux/init.h>
-#include <net/net_namespace.h>
-#include <net/ip.h>
-#include <net/route.h>
-#include <linux/skbuff.h>
-#include <net/sock.h>
-#include <net/arp.h>
-
-
-/*
- * Device multicast list maintenance.
- *
- * This is used both by IP and by the user level maintenance functions.
- * Unlike BSD we maintain a usage count on a given multicast address so
- * that a casual user application can add/delete multicasts used by
- * protocols without doing damage to the protocols when it deletes the
- * entries. It also helps IP as it tracks overlapping maps.
- *
- * Device mc lists are changed by bh at least if IPv6 is enabled,
- * so that it must be bh protected.
- *
- * We block accesses to device mc filters with netif_tx_lock.
- */
-
-/*
- * Delete a device level multicast
- */
-
-int dev_mc_delete(struct net_device *dev, void *addr, int alen, int glbl)
-{
- int err;
-
- netif_addr_lock_bh(dev);
- err = __dev_addr_delete(&dev->mc_list, &dev->mc_count,
- addr, alen, glbl);
- if (!err) {
- /*
- * We have altered the list, so the card
- * loaded filter is now wrong. Fix it
- */
-
- __dev_set_rx_mode(dev);
- }
- netif_addr_unlock_bh(dev);
- return err;
-}
-
-/*
- * Add a device level multicast
- */
-
-int dev_mc_add(struct net_device *dev, void *addr, int alen, int glbl)
-{
- int err;
-
- netif_addr_lock_bh(dev);
- if (alen != dev->addr_len)
- err = -EINVAL;
- else
- err = __dev_addr_add(&dev->mc_list, &dev->mc_count, addr, alen, glbl);
- if (!err)
- __dev_set_rx_mode(dev);
- netif_addr_unlock_bh(dev);
- return err;
-}
-
-/**
- * dev_mc_sync - Synchronize device's multicast list to another device
- * @to: destination device
- * @from: source device
- *
- * Add newly added addresses to the destination device and release
- * addresses that have no users left. The source device must be
- * locked by netif_tx_lock_bh.
- *
- * This function is intended to be called from the dev->set_multicast_list
- * or dev->set_rx_mode function of layered software devices.
- */
-int dev_mc_sync(struct net_device *to, struct net_device *from)
-{
- int err = 0;
-
- netif_addr_lock_bh(to);
- err = __dev_addr_sync(&to->mc_list, &to->mc_count,
- &from->mc_list, &from->mc_count);
- if (!err)
- __dev_set_rx_mode(to);
- netif_addr_unlock_bh(to);
-
- return err;
-}
-EXPORT_SYMBOL(dev_mc_sync);
-
-
-/**
- * dev_mc_unsync - Remove synchronized addresses from the destination
- * device
- * @to: destination device
- * @from: source device
- *
- * Remove all addresses that were added to the destination device by
- * dev_mc_sync(). This function is intended to be called from the
- * dev->stop function of layered software devices.
- */
-void dev_mc_unsync(struct net_device *to, struct net_device *from)
-{
- netif_addr_lock_bh(from);
- netif_addr_lock(to);
-
- __dev_addr_unsync(&to->mc_list, &to->mc_count,
- &from->mc_list, &from->mc_count);
- __dev_set_rx_mode(to);
-
- netif_addr_unlock(to);
- netif_addr_unlock_bh(from);
-}
-EXPORT_SYMBOL(dev_mc_unsync);
-
-#ifdef CONFIG_PROC_FS
-static int dev_mc_seq_show(struct seq_file *seq, void *v)
-{
- struct dev_addr_list *m;
- struct net_device *dev = v;
-
- if (v == SEQ_START_TOKEN)
- return 0;
-
- netif_addr_lock_bh(dev);
- for (m = dev->mc_list; m; m = m->next) {
- int i;
-
- seq_printf(seq, "%-4d %-15s %-5d %-5d ", dev->ifindex,
- dev->name, m->dmi_users, m->dmi_gusers);
-
- for (i = 0; i < m->dmi_addrlen; i++)
- seq_printf(seq, "%02x", m->dmi_addr[i]);
-
- seq_putc(seq, '\n');
- }
- netif_addr_unlock_bh(dev);
- return 0;
-}
-
-static const struct seq_operations dev_mc_seq_ops = {
- .start = dev_seq_start,
- .next = dev_seq_next,
- .stop = dev_seq_stop,
- .show = dev_mc_seq_show,
-};
-
-static int dev_mc_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &dev_mc_seq_ops,
- sizeof(struct seq_net_private));
-}
-
-static const struct file_operations dev_mc_seq_fops = {
- .owner = THIS_MODULE,
- .open = dev_mc_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
-#endif
-
-static int __net_init dev_mc_net_init(struct net *net)
-{
- if (!proc_net_fops_create(net, "dev_mcast", 0, &dev_mc_seq_fops))
- return -ENOMEM;
- return 0;
-}
-
-static void __net_exit dev_mc_net_exit(struct net *net)
-{
- proc_net_remove(net, "dev_mcast");
-}
-
-static struct pernet_operations __net_initdata dev_mc_net_ops = {
- .init = dev_mc_net_init,
- .exit = dev_mc_net_exit,
-};
-
-void __init dev_mcast_init(void)
-{
- register_pernet_subsys(&dev_mc_net_ops);
-}
-
-EXPORT_SYMBOL(dev_mc_add);
-EXPORT_SYMBOL(dev_mc_delete);