linux-imx

/*

 *  Anycast support for IPv6

 *  Linux INET6 implementation

 *

 *  Authors:

 *  David L Stevens (dlstevens@us.ibm.com)

 *

 *  based heavily on net/ipv6/mcast.c

 *

 *  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/capability.h>

#include <linux/module.h>

#include <linux/errno.h>

#include <linux/types.h>

#include <linux/random.h>

#include <linux/string.h>

#include <linux/socket.h>

#include <linux/sockios.h>

#include <linux/net.h>

#include <linux/in6.h>

#include <linux/netdevice.h>

#include <linux/if_arp.h>

#include <linux/route.h>

#include <linux/init.h>

#include <linux/proc_fs.h>

#include <linux/seq_file.h>

#include <linux/slab.h>

​

#include <net/net_namespace.h>

#include <net/sock.h>

#include <net/snmp.h>

​

#include <net/ipv6.h>

#include <net/protocol.h>

#include <net/if_inet6.h>

#include <net/ndisc.h>

#include <net/addrconf.h>

#include <net/ip6_route.h>

​

#include <net/checksum.h>

​

#define IN6_ADDR_HSIZE_SHIFT    8

#define IN6_ADDR_HSIZE      BIT(IN6_ADDR_HSIZE_SHIFT)

/*  anycast address hash table

 */

static struct hlist_head inet6_acaddr_lst[IN6_ADDR_HSIZE];

static DEFINE_SPINLOCK(acaddr_hash_lock);

​

static int ipv6_dev_ac_dec(struct net_device *dev, const struct in6_addr *addr);

​

static u32 inet6_acaddr_hash(struct net *net, const struct in6_addr *addr)

{

    u32 val = ipv6_addr_hash(addr) ^ net_hash_mix(net);

​

    return hash_32(val, IN6_ADDR_HSIZE_SHIFT);

}

​

/*