2005-04-16 16:20:36 -06:00
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#ifndef _ADDRCONF_H
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#define _ADDRCONF_H
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#define MAX_RTR_SOLICITATIONS 3
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#define RTR_SOLICITATION_INTERVAL (4*HZ)
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#define MIN_VALID_LIFETIME (2*3600) /* 2 hours */
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#define TEMP_VALID_LIFETIME (7*86400)
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#define TEMP_PREFERRED_LIFETIME (86400)
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2011-07-26 07:50:49 -06:00
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#define REGEN_MAX_RETRY (3)
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2005-04-16 16:20:36 -06:00
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#define MAX_DESYNC_FACTOR (600)
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#define ADDR_CHECK_FREQUENCY (120*HZ)
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#define IPV6_MAX_ADDRESSES 16
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2013-01-24 02:41:41 -07:00
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#define ADDRCONF_TIMER_FUZZ_MINUS (HZ > 50 ? HZ / 50 : 1)
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#define ADDRCONF_TIMER_FUZZ (HZ / 4)
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#define ADDRCONF_TIMER_FUZZ_MAX (HZ)
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2007-11-29 04:11:40 -07:00
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#include <linux/in.h>
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2005-05-03 23:17:18 -06:00
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#include <linux/in6.h>
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2005-04-16 16:20:36 -06:00
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struct prefix_info {
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__u8 type;
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__u8 length;
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__u8 prefix_len;
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#if defined(__BIG_ENDIAN_BITFIELD)
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__u8 onlink : 1,
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autoconf : 1,
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reserved : 6;
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#elif defined(__LITTLE_ENDIAN_BITFIELD)
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__u8 reserved : 6,
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autoconf : 1,
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onlink : 1;
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#else
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#error "Please fix <asm/byteorder.h>"
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#endif
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2006-11-14 21:56:00 -07:00
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__be32 valid;
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__be32 prefered;
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__be32 reserved2;
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2005-04-16 16:20:36 -06:00
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struct in6_addr prefix;
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};
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#include <linux/netdevice.h>
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#include <net/if_inet6.h>
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2005-05-03 15:25:13 -06:00
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#include <net/ipv6.h>
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2005-04-16 16:20:36 -06:00
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2012-07-18 02:11:12 -06:00
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#define IN6_ADDR_HSIZE_SHIFT 4
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#define IN6_ADDR_HSIZE (1 << IN6_ADDR_HSIZE_SHIFT)
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2005-04-16 16:20:36 -06:00
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extern int addrconf_init(void);
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extern void addrconf_cleanup(void);
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2008-03-05 11:46:57 -07:00
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extern int addrconf_add_ifaddr(struct net *net,
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void __user *arg);
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extern int addrconf_del_ifaddr(struct net *net,
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void __user *arg);
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extern int addrconf_set_dstaddr(struct net *net,
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void __user *arg);
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2005-04-16 16:20:36 -06:00
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2008-01-10 23:43:18 -07:00
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extern int ipv6_chk_addr(struct net *net,
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2011-04-21 22:53:02 -06:00
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const struct in6_addr *addr,
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2005-04-16 16:20:36 -06:00
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struct net_device *dev,
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int strict);
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2008-01-10 23:43:18 -07:00
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2007-06-27 00:56:32 -06:00
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#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
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2008-01-10 23:44:40 -07:00
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extern int ipv6_chk_home_addr(struct net *net,
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2011-04-21 22:53:02 -06:00
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const struct in6_addr *addr);
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2006-08-23 20:16:22 -06:00
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#endif
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2008-03-15 20:54:23 -06:00
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2011-04-21 22:53:02 -06:00
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extern int ipv6_chk_prefix(const struct in6_addr *addr,
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2008-03-15 20:54:23 -06:00
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struct net_device *dev);
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2008-01-10 23:44:09 -07:00
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extern struct inet6_ifaddr *ipv6_get_ifaddr(struct net *net,
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[IPV6]: Make address arguments const.
- net/ipv6/addrconf.c:
ipv6_get_ifaddr(), ipv6_dev_get_saddr()
- net/ipv6/mcast.c:
ipv6_sock_mc_join(), ipv6_sock_mc_drop(),
inet6_mc_check(),
ipv6_dev_mc_inc(), __ipv6_dev_mc_dec(), ipv6_dev_mc_dec(),
ipv6_chk_mcast_addr()
- net/ipv6/route.c:
rt6_lookup(), icmp6_dst_alloc()
- net/ipv6/ip6_output.c:
ip6_nd_hdr()
- net/ipv6/ndisc.c:
ndisc_send_ns(), ndisc_send_rs(), ndisc_send_redirect(),
ndisc_get_neigh(), __ndisc_send()
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-04-10 00:42:10 -06:00
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const struct in6_addr *addr,
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2008-01-10 23:44:09 -07:00
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struct net_device *dev,
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int strict);
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2008-08-14 16:33:21 -06:00
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extern int ipv6_dev_get_saddr(struct net *net,
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2012-08-26 11:14:14 -06:00
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const struct net_device *dev,
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[IPV6]: Make address arguments const.
- net/ipv6/addrconf.c:
ipv6_get_ifaddr(), ipv6_dev_get_saddr()
- net/ipv6/mcast.c:
ipv6_sock_mc_join(), ipv6_sock_mc_drop(),
inet6_mc_check(),
ipv6_dev_mc_inc(), __ipv6_dev_mc_dec(), ipv6_dev_mc_dec(),
ipv6_chk_mcast_addr()
- net/ipv6/route.c:
rt6_lookup(), icmp6_dst_alloc()
- net/ipv6/ip6_output.c:
ip6_nd_hdr()
- net/ipv6/ndisc.c:
ndisc_send_ns(), ndisc_send_rs(), ndisc_send_redirect(),
ndisc_get_neigh(), __ndisc_send()
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-04-10 00:42:10 -06:00
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const struct in6_addr *daddr,
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2008-03-24 18:37:42 -06:00
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unsigned int srcprefs,
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2005-04-16 16:20:36 -06:00
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struct in6_addr *saddr);
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2007-04-25 18:08:10 -06:00
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extern int ipv6_get_lladdr(struct net_device *dev,
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struct in6_addr *addr,
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unsigned char banned_flags);
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2009-03-24 10:24:51 -06:00
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extern int ipv6_rcv_saddr_equal(const struct sock *sk,
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const struct sock *sk2);
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2005-04-16 16:20:36 -06:00
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extern void addrconf_join_solict(struct net_device *dev,
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2011-04-21 22:53:02 -06:00
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const struct in6_addr *addr);
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2005-04-16 16:20:36 -06:00
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extern void addrconf_leave_solict(struct inet6_dev *idev,
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2011-04-21 22:53:02 -06:00
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const struct in6_addr *addr);
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2005-04-16 16:20:36 -06:00
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2008-05-27 02:37:49 -06:00
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static inline unsigned long addrconf_timeout_fixup(u32 timeout,
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2012-04-14 23:58:06 -06:00
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unsigned int unit)
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2008-05-27 02:37:49 -06:00
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{
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if (timeout == 0xffffffff)
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return ~0UL;
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/*
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* Avoid arithmetic overflow.
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* Assuming unit is constant and non-zero, this "if" statement
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* will go away on 64bit archs.
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*/
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if (0xfffffffe > LONG_MAX / unit && timeout > LONG_MAX / unit)
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return LONG_MAX / unit;
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return timeout;
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}
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static inline int addrconf_finite_timeout(unsigned long timeout)
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{
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return ~timeout;
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}
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2007-11-13 23:56:23 -07:00
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/*
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* IPv6 Address Label subsystem (addrlabel.c)
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*/
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extern int ipv6_addr_label_init(void);
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2010-09-24 03:55:52 -06:00
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extern void ipv6_addr_label_cleanup(void);
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2007-11-13 23:56:23 -07:00
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extern void ipv6_addr_label_rtnl_register(void);
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2008-05-28 06:51:24 -06:00
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extern u32 ipv6_addr_label(struct net *net,
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const struct in6_addr *addr,
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2007-11-13 23:56:23 -07:00
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int type, int ifindex);
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2005-04-16 16:20:36 -06:00
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/*
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* multicast prototypes (mcast.c)
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*/
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[IPV6]: Make address arguments const.
- net/ipv6/addrconf.c:
ipv6_get_ifaddr(), ipv6_dev_get_saddr()
- net/ipv6/mcast.c:
ipv6_sock_mc_join(), ipv6_sock_mc_drop(),
inet6_mc_check(),
ipv6_dev_mc_inc(), __ipv6_dev_mc_dec(), ipv6_dev_mc_dec(),
ipv6_chk_mcast_addr()
- net/ipv6/route.c:
rt6_lookup(), icmp6_dst_alloc()
- net/ipv6/ip6_output.c:
ip6_nd_hdr()
- net/ipv6/ndisc.c:
ndisc_send_ns(), ndisc_send_rs(), ndisc_send_redirect(),
ndisc_get_neigh(), __ndisc_send()
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-04-10 00:42:10 -06:00
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extern int ipv6_sock_mc_join(struct sock *sk, int ifindex,
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const struct in6_addr *addr);
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extern int ipv6_sock_mc_drop(struct sock *sk, int ifindex,
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const struct in6_addr *addr);
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2005-04-16 16:20:36 -06:00
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extern void ipv6_sock_mc_close(struct sock *sk);
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2012-05-18 12:57:34 -06:00
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extern bool inet6_mc_check(struct sock *sk,
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const struct in6_addr *mc_addr,
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const struct in6_addr *src_addr);
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2005-04-16 16:20:36 -06:00
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[IPV6]: Make address arguments const.
- net/ipv6/addrconf.c:
ipv6_get_ifaddr(), ipv6_dev_get_saddr()
- net/ipv6/mcast.c:
ipv6_sock_mc_join(), ipv6_sock_mc_drop(),
inet6_mc_check(),
ipv6_dev_mc_inc(), __ipv6_dev_mc_dec(), ipv6_dev_mc_dec(),
ipv6_chk_mcast_addr()
- net/ipv6/route.c:
rt6_lookup(), icmp6_dst_alloc()
- net/ipv6/ip6_output.c:
ip6_nd_hdr()
- net/ipv6/ndisc.c:
ndisc_send_ns(), ndisc_send_rs(), ndisc_send_redirect(),
ndisc_get_neigh(), __ndisc_send()
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-04-10 00:42:10 -06:00
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extern int ipv6_dev_mc_inc(struct net_device *dev, const struct in6_addr *addr);
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extern int __ipv6_dev_mc_dec(struct inet6_dev *idev, const struct in6_addr *addr);
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extern int ipv6_dev_mc_dec(struct net_device *dev, const struct in6_addr *addr);
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2005-04-16 16:20:36 -06:00
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extern void ipv6_mc_up(struct inet6_dev *idev);
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extern void ipv6_mc_down(struct inet6_dev *idev);
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2009-09-15 03:37:40 -06:00
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extern void ipv6_mc_unmap(struct inet6_dev *idev);
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extern void ipv6_mc_remap(struct inet6_dev *idev);
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2005-04-16 16:20:36 -06:00
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extern void ipv6_mc_init_dev(struct inet6_dev *idev);
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extern void ipv6_mc_destroy_dev(struct inet6_dev *idev);
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extern void addrconf_dad_failure(struct inet6_ifaddr *ifp);
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2012-05-18 12:57:34 -06:00
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extern bool ipv6_chk_mcast_addr(struct net_device *dev,
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const struct in6_addr *group,
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const struct in6_addr *src_addr);
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2013-01-12 22:02:18 -07:00
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/*
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* identify MLD packets for MLD filter exceptions
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*/
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static inline bool ipv6_is_mld(struct sk_buff *skb, int nexthdr, int offset)
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{
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struct icmp6hdr *hdr;
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if (nexthdr != IPPROTO_ICMPV6 ||
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!pskb_network_may_pull(skb, offset + sizeof(struct icmp6hdr)))
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return false;
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hdr = (struct icmp6hdr *)(skb_network_header(skb) + offset);
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switch (hdr->icmp6_type) {
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case ICMPV6_MGM_QUERY:
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case ICMPV6_MGM_REPORT:
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case ICMPV6_MGM_REDUCTION:
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case ICMPV6_MLD2_REPORT:
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return true;
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default:
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break;
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}
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return false;
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}
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2005-04-16 16:20:36 -06:00
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2012-01-04 03:49:15 -07:00
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extern void addrconf_prefix_rcv(struct net_device *dev,
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u8 *opt, int len, bool sllao);
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2005-04-16 16:20:36 -06:00
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/*
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* anycast prototypes (anycast.c)
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*/
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2011-04-21 22:53:02 -06:00
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extern int ipv6_sock_ac_join(struct sock *sk,int ifindex, const struct in6_addr *addr);
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extern int ipv6_sock_ac_drop(struct sock *sk,int ifindex, const struct in6_addr *addr);
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2005-04-16 16:20:36 -06:00
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extern void ipv6_sock_ac_close(struct sock *sk);
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2011-04-21 22:53:02 -06:00
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extern int ipv6_dev_ac_inc(struct net_device *dev, const struct in6_addr *addr);
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extern int __ipv6_dev_ac_dec(struct inet6_dev *idev, const struct in6_addr *addr);
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2012-05-18 12:57:34 -06:00
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extern bool ipv6_chk_acast_addr(struct net *net, struct net_device *dev,
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const struct in6_addr *addr);
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2005-04-16 16:20:36 -06:00
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/* Device notifier */
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extern int register_inet6addr_notifier(struct notifier_block *nb);
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extern int unregister_inet6addr_notifier(struct notifier_block *nb);
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2013-04-14 09:18:43 -06:00
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extern int inet6addr_notifier_call_chain(unsigned long val, void *v);
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2005-04-16 16:20:36 -06:00
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2012-12-03 18:13:35 -07:00
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extern void inet6_netconf_notify_devconf(struct net *net, int type, int ifindex,
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struct ipv6_devconf *devconf);
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2010-09-21 00:57:39 -06:00
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/**
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* __in6_dev_get - get inet6_dev pointer from netdevice
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* @dev: network device
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*
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* Caller must hold rcu_read_lock or RTNL, because this function
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* does not take a reference on the inet6_dev.
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*/
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static inline struct inet6_dev *__in6_dev_get(const struct net_device *dev)
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2005-04-16 16:20:36 -06:00
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{
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2010-09-21 00:57:39 -06:00
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return rcu_dereference_rtnl(dev->ip6_ptr);
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2005-04-16 16:20:36 -06:00
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}
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2010-09-21 00:57:39 -06:00
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/**
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* in6_dev_get - get inet6_dev pointer from netdevice
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* @dev: network device
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*
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* This version can be used in any context, and takes a reference
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* on the inet6_dev. Callers must use in6_dev_put() later to
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* release this reference.
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*/
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static inline struct inet6_dev *in6_dev_get(const struct net_device *dev)
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2005-04-16 16:20:36 -06:00
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{
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2010-09-21 00:57:39 -06:00
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struct inet6_dev *idev;
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2006-09-22 15:44:24 -06:00
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rcu_read_lock();
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2010-09-21 00:57:39 -06:00
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idev = rcu_dereference(dev->ip6_ptr);
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2005-04-16 16:20:36 -06:00
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if (idev)
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atomic_inc(&idev->refcnt);
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2006-09-22 15:44:24 -06:00
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rcu_read_unlock();
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2005-04-16 16:20:36 -06:00
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return idev;
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}
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extern void in6_dev_finish_destroy(struct inet6_dev *idev);
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2010-09-21 00:57:39 -06:00
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static inline void in6_dev_put(struct inet6_dev *idev)
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2005-04-16 16:20:36 -06:00
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{
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if (atomic_dec_and_test(&idev->refcnt))
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in6_dev_finish_destroy(idev);
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}
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2010-09-21 00:57:39 -06:00
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static inline void __in6_dev_put(struct inet6_dev *idev)
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{
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atomic_dec(&idev->refcnt);
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|
}
|
2005-04-16 16:20:36 -06:00
|
|
|
|
2010-09-21 00:57:39 -06:00
|
|
|
static inline void in6_dev_hold(struct inet6_dev *idev)
|
|
|
|
{
|
|
|
|
atomic_inc(&idev->refcnt);
|
|
|
|
}
|
2005-04-16 16:20:36 -06:00
|
|
|
|
|
|
|
extern void inet6_ifa_finish_destroy(struct inet6_ifaddr *ifp);
|
|
|
|
|
|
|
|
static inline void in6_ifa_put(struct inet6_ifaddr *ifp)
|
|
|
|
{
|
|
|
|
if (atomic_dec_and_test(&ifp->refcnt))
|
|
|
|
inet6_ifa_finish_destroy(ifp);
|
|
|
|
}
|
|
|
|
|
2010-09-21 00:57:39 -06:00
|
|
|
static inline void __in6_ifa_put(struct inet6_ifaddr *ifp)
|
|
|
|
{
|
|
|
|
atomic_dec(&ifp->refcnt);
|
|
|
|
}
|
2005-04-16 16:20:36 -06:00
|
|
|
|
2010-09-21 00:57:39 -06:00
|
|
|
static inline void in6_ifa_hold(struct inet6_ifaddr *ifp)
|
|
|
|
{
|
|
|
|
atomic_inc(&ifp->refcnt);
|
|
|
|
}
|
2005-04-16 16:20:36 -06:00
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* compute link-local solicited-node multicast address
|
|
|
|
*/
|
|
|
|
|
|
|
|
static inline void addrconf_addr_solict_mult(const struct in6_addr *addr,
|
|
|
|
struct in6_addr *solicited)
|
|
|
|
{
|
|
|
|
ipv6_addr_set(solicited,
|
2008-02-28 01:03:12 -07:00
|
|
|
htonl(0xFF020000), 0,
|
|
|
|
htonl(0x1),
|
|
|
|
htonl(0xFF000000) | addr->s6_addr32[3]);
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
|
2013-01-20 10:38:38 -07:00
|
|
|
static inline bool ipv6_addr_is_multicast(const struct in6_addr *addr)
|
2005-04-16 16:20:36 -06:00
|
|
|
{
|
2008-02-28 01:03:12 -07:00
|
|
|
return (addr->s6_addr32[0] & htonl(0xFF000000)) == htonl(0xFF000000);
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
|
2013-01-20 10:38:38 -07:00
|
|
|
static inline bool ipv6_addr_is_ll_all_nodes(const struct in6_addr *addr)
|
2005-04-16 16:20:36 -06:00
|
|
|
{
|
2013-01-20 00:38:52 -07:00
|
|
|
#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64
|
|
|
|
__u64 *p = (__u64 *)addr;
|
|
|
|
return ((p[0] ^ cpu_to_be64(0xff02000000000000UL)) | (p[1] ^ cpu_to_be64(1))) == 0UL;
|
|
|
|
#else
|
2010-09-21 00:57:39 -06:00
|
|
|
return ((addr->s6_addr32[0] ^ htonl(0xff020000)) |
|
2008-04-11 05:17:55 -06:00
|
|
|
addr->s6_addr32[1] | addr->s6_addr32[2] |
|
2010-09-21 00:57:39 -06:00
|
|
|
(addr->s6_addr32[3] ^ htonl(0x00000001))) == 0;
|
2013-01-20 00:38:52 -07:00
|
|
|
#endif
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
|
2013-01-20 10:38:38 -07:00
|
|
|
static inline bool ipv6_addr_is_ll_all_routers(const struct in6_addr *addr)
|
2005-04-16 16:20:36 -06:00
|
|
|
{
|
2013-01-20 00:38:52 -07:00
|
|
|
#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64
|
|
|
|
__u64 *p = (__u64 *)addr;
|
|
|
|
return ((p[0] ^ cpu_to_be64(0xff02000000000000UL)) | (p[1] ^ cpu_to_be64(2))) == 0UL;
|
|
|
|
#else
|
2010-09-21 00:57:39 -06:00
|
|
|
return ((addr->s6_addr32[0] ^ htonl(0xff020000)) |
|
2008-04-11 05:17:55 -06:00
|
|
|
addr->s6_addr32[1] | addr->s6_addr32[2] |
|
2010-09-21 00:57:39 -06:00
|
|
|
(addr->s6_addr32[3] ^ htonl(0x00000002))) == 0;
|
2013-01-20 00:38:52 -07:00
|
|
|
#endif
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
|
2013-01-20 10:38:38 -07:00
|
|
|
static inline bool ipv6_addr_is_isatap(const struct in6_addr *addr)
|
2007-11-29 04:11:40 -07:00
|
|
|
{
|
2010-09-21 00:57:39 -06:00
|
|
|
return (addr->s6_addr32[2] | htonl(0x02000000)) == htonl(0x02005EFE);
|
2007-11-29 04:11:40 -07:00
|
|
|
}
|
|
|
|
|
2013-01-20 00:39:00 -07:00
|
|
|
static inline bool ipv6_addr_is_solict_mult(const struct in6_addr *addr)
|
|
|
|
{
|
2013-01-20 00:39:07 -07:00
|
|
|
#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64
|
|
|
|
__u64 *p = (__u64 *)addr;
|
|
|
|
return ((p[0] ^ cpu_to_be64(0xff02000000000000UL)) |
|
|
|
|
((p[1] ^ cpu_to_be64(0x00000001ff000000UL)) &
|
|
|
|
cpu_to_be64(0xffffffffff000000UL))) == 0UL;
|
|
|
|
#else
|
|
|
|
return ((addr->s6_addr32[0] ^ htonl(0xff020000)) |
|
|
|
|
addr->s6_addr32[1] |
|
|
|
|
(addr->s6_addr32[2] ^ htonl(0x00000001)) |
|
|
|
|
(addr->s6_addr[12] ^ 0xff)) == 0;
|
|
|
|
#endif
|
2013-01-20 00:39:00 -07:00
|
|
|
}
|
|
|
|
|
2005-08-15 23:18:02 -06:00
|
|
|
#ifdef CONFIG_PROC_FS
|
|
|
|
extern int if6_proc_init(void);
|
|
|
|
extern void if6_proc_exit(void);
|
|
|
|
#endif
|
|
|
|
|
2005-04-16 16:20:36 -06:00
|
|
|
#endif
|