Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef _NET_IP6_ROUTE_H |
| 2 | #define _NET_IP6_ROUTE_H |
| 3 | |
| 4 | #define IP6_RT_PRIO_FW 16 |
| 5 | #define IP6_RT_PRIO_USER 1024 |
| 6 | #define IP6_RT_PRIO_ADDRCONF 256 |
| 7 | #define IP6_RT_PRIO_KERN 512 |
| 8 | #define IP6_RT_FLOW_MASK 0x00ff |
| 9 | |
YOSHIFUJI Hideaki | 70ceb4f | 2006-03-20 17:06:24 -0800 | [diff] [blame] | 10 | struct route_info { |
| 11 | __u8 type; |
| 12 | __u8 length; |
| 13 | __u8 prefix_len; |
| 14 | #if defined(__BIG_ENDIAN_BITFIELD) |
| 15 | __u8 reserved_h:3, |
| 16 | route_pref:2, |
| 17 | reserved_l:3; |
| 18 | #elif defined(__LITTLE_ENDIAN_BITFIELD) |
| 19 | __u8 reserved_l:3, |
| 20 | route_pref:2, |
| 21 | reserved_h:3; |
| 22 | #endif |
| 23 | __u32 lifetime; |
| 24 | __u8 prefix[0]; /* 0,8 or 16 */ |
| 25 | }; |
| 26 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 27 | #ifdef __KERNEL__ |
| 28 | |
| 29 | #include <net/flow.h> |
| 30 | #include <net/ip6_fib.h> |
| 31 | #include <net/sock.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | #include <linux/ip.h> |
| 33 | #include <linux/ipv6.h> |
| 34 | |
| 35 | struct pol_chain { |
| 36 | int type; |
| 37 | int priority; |
| 38 | struct fib6_node *rules; |
| 39 | struct pol_chain *next; |
| 40 | }; |
| 41 | |
| 42 | extern struct rt6_info ip6_null_entry; |
| 43 | |
Thomas Graf | 101367c | 2006-08-04 03:39:02 -0700 | [diff] [blame] | 44 | #ifdef CONFIG_IPV6_MULTIPLE_TABLES |
| 45 | extern struct rt6_info ip6_prohibit_entry; |
| 46 | extern struct rt6_info ip6_blk_hole_entry; |
| 47 | #endif |
| 48 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | extern int ip6_rt_gc_interval; |
| 50 | |
| 51 | extern void ip6_route_input(struct sk_buff *skb); |
| 52 | |
| 53 | extern struct dst_entry * ip6_route_output(struct sock *sk, |
| 54 | struct flowi *fl); |
| 55 | |
| 56 | extern int ip6_route_me_harder(struct sk_buff *skb); |
| 57 | |
| 58 | extern void ip6_route_init(void); |
| 59 | extern void ip6_route_cleanup(void); |
| 60 | |
| 61 | extern int ipv6_route_ioctl(unsigned int cmd, void __user *arg); |
| 62 | |
| 63 | extern int ip6_route_add(struct in6_rtmsg *rtmsg, |
| 64 | struct nlmsghdr *, |
Jamal Hadi Salim | 0d51aa8 | 2005-06-21 13:51:04 -0700 | [diff] [blame] | 65 | void *rtattr, |
Thomas Graf | c71099a | 2006-08-04 23:20:06 -0700 | [diff] [blame] | 66 | struct netlink_skb_parms *req, |
| 67 | u32 table_id); |
Thomas Graf | 40e22e8 | 2006-08-22 00:00:45 -0700 | [diff] [blame^] | 68 | extern int ip6_ins_rt(struct rt6_info *); |
Thomas Graf | e0a1ad73 | 2006-08-22 00:00:21 -0700 | [diff] [blame] | 69 | extern int ip6_del_rt(struct rt6_info *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 70 | |
| 71 | extern int ip6_rt_addr_add(struct in6_addr *addr, |
| 72 | struct net_device *dev, |
| 73 | int anycast); |
| 74 | |
| 75 | extern int ip6_rt_addr_del(struct in6_addr *addr, |
| 76 | struct net_device *dev); |
| 77 | |
| 78 | extern void rt6_sndmsg(int type, struct in6_addr *dst, |
| 79 | struct in6_addr *src, |
| 80 | struct in6_addr *gw, |
| 81 | struct net_device *dev, |
| 82 | int dstlen, int srclen, |
| 83 | int metric, __u32 flags); |
| 84 | |
| 85 | extern struct rt6_info *rt6_lookup(struct in6_addr *daddr, |
| 86 | struct in6_addr *saddr, |
| 87 | int oif, int flags); |
| 88 | |
| 89 | extern struct dst_entry *ndisc_dst_alloc(struct net_device *dev, |
| 90 | struct neighbour *neigh, |
| 91 | struct in6_addr *addr, |
| 92 | int (*output)(struct sk_buff *)); |
| 93 | extern int ndisc_dst_gc(int *more); |
| 94 | extern void fib6_force_start_gc(void); |
| 95 | |
| 96 | extern struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev, |
| 97 | const struct in6_addr *addr, |
| 98 | int anycast); |
| 99 | |
| 100 | /* |
| 101 | * support functions for ND |
| 102 | * |
| 103 | */ |
| 104 | extern struct rt6_info * rt6_get_dflt_router(struct in6_addr *addr, |
| 105 | struct net_device *dev); |
| 106 | extern struct rt6_info * rt6_add_dflt_router(struct in6_addr *gwaddr, |
YOSHIFUJI Hideaki | ebacaaa | 2006-03-20 17:04:53 -0800 | [diff] [blame] | 107 | struct net_device *dev, |
| 108 | unsigned int pref); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 109 | |
| 110 | extern void rt6_purge_dflt_routers(void); |
| 111 | |
YOSHIFUJI Hideaki | 70ceb4f | 2006-03-20 17:06:24 -0800 | [diff] [blame] | 112 | extern int rt6_route_rcv(struct net_device *dev, |
| 113 | u8 *opt, int len, |
| 114 | struct in6_addr *gwaddr); |
| 115 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 116 | extern void rt6_redirect(struct in6_addr *dest, |
| 117 | struct in6_addr *saddr, |
| 118 | struct neighbour *neigh, |
| 119 | u8 *lladdr, |
| 120 | int on_link); |
| 121 | |
| 122 | extern void rt6_pmtu_discovery(struct in6_addr *daddr, |
| 123 | struct in6_addr *saddr, |
| 124 | struct net_device *dev, |
| 125 | u32 pmtu); |
| 126 | |
| 127 | struct nlmsghdr; |
| 128 | struct netlink_callback; |
| 129 | extern int inet6_dump_fib(struct sk_buff *skb, struct netlink_callback *cb); |
| 130 | extern int inet6_rtm_newroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg); |
| 131 | extern int inet6_rtm_delroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg); |
| 132 | extern int inet6_rtm_getroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg); |
| 133 | |
Patrick McHardy | 1b43af5 | 2006-08-10 23:11:17 -0700 | [diff] [blame] | 134 | struct rt6_rtnl_dump_arg |
| 135 | { |
| 136 | struct sk_buff *skb; |
| 137 | struct netlink_callback *cb; |
| 138 | }; |
| 139 | |
| 140 | extern int rt6_dump_route(struct rt6_info *rt, void *p_arg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | extern void rt6_ifdown(struct net_device *dev); |
| 142 | extern void rt6_mtu_change(struct net_device *dev, unsigned mtu); |
| 143 | |
| 144 | extern rwlock_t rt6_lock; |
| 145 | |
| 146 | /* |
| 147 | * Store a destination cache entry in a socket |
| 148 | */ |
Herbert Xu | 497c615 | 2006-07-30 20:19:33 -0700 | [diff] [blame] | 149 | static inline void __ip6_dst_store(struct sock *sk, struct dst_entry *dst, |
| 150 | struct in6_addr *daddr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 151 | { |
| 152 | struct ipv6_pinfo *np = inet6_sk(sk); |
| 153 | struct rt6_info *rt = (struct rt6_info *) dst; |
| 154 | |
Herbert Xu | f83ef8c | 2006-06-30 13:37:03 -0700 | [diff] [blame] | 155 | sk_setup_caps(sk, dst); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 156 | np->daddr_cache = daddr; |
| 157 | np->dst_cookie = rt->rt6i_node ? rt->rt6i_node->fn_sernum : 0; |
Herbert Xu | 497c615 | 2006-07-30 20:19:33 -0700 | [diff] [blame] | 158 | } |
| 159 | |
| 160 | static inline void ip6_dst_store(struct sock *sk, struct dst_entry *dst, |
| 161 | struct in6_addr *daddr) |
| 162 | { |
| 163 | write_lock(&sk->sk_dst_lock); |
| 164 | __ip6_dst_store(sk, dst, daddr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 165 | write_unlock(&sk->sk_dst_lock); |
| 166 | } |
| 167 | |
| 168 | static inline int ipv6_unicast_destination(struct sk_buff *skb) |
| 169 | { |
| 170 | struct rt6_info *rt = (struct rt6_info *) skb->dst; |
| 171 | |
| 172 | return rt->rt6i_flags & RTF_LOCAL; |
| 173 | } |
| 174 | |
| 175 | #endif |
| 176 | #endif |