From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- include/net/ndisc.h | 135 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 135 insertions(+) create mode 100644 include/net/ndisc.h (limited to 'include/net/ndisc.h') diff --git a/include/net/ndisc.h b/include/net/ndisc.h new file mode 100644 index 000000000000..f85d6e4b7442 --- /dev/null +++ b/include/net/ndisc.h @@ -0,0 +1,135 @@ +#ifndef _NDISC_H +#define _NDISC_H + +/* + * ICMP codes for neighbour discovery messages + */ + +#define NDISC_ROUTER_SOLICITATION 133 +#define NDISC_ROUTER_ADVERTISEMENT 134 +#define NDISC_NEIGHBOUR_SOLICITATION 135 +#define NDISC_NEIGHBOUR_ADVERTISEMENT 136 +#define NDISC_REDIRECT 137 + +/* + * ndisc options + */ + +enum { + __ND_OPT_PREFIX_INFO_END = 0, + ND_OPT_SOURCE_LL_ADDR = 1, /* RFC2461 */ + ND_OPT_TARGET_LL_ADDR = 2, /* RFC2461 */ + ND_OPT_PREFIX_INFO = 3, /* RFC2461 */ + ND_OPT_REDIRECT_HDR = 4, /* RFC2461 */ + ND_OPT_MTU = 5, /* RFC2461 */ + __ND_OPT_MAX +}; + +#define MAX_RTR_SOLICITATION_DELAY HZ + +#define ND_REACHABLE_TIME (30*HZ) +#define ND_RETRANS_TIMER HZ + +#define ND_MIN_RANDOM_FACTOR (1/2) +#define ND_MAX_RANDOM_FACTOR (3/2) + +#ifdef __KERNEL__ + +#include +#include +#include +#include +#include + +extern struct neigh_table nd_tbl; + +struct nd_msg { + struct icmp6hdr icmph; + struct in6_addr target; + __u8 opt[0]; +}; + +struct rs_msg { + struct icmp6hdr icmph; + __u8 opt[0]; +}; + +struct ra_msg { + struct icmp6hdr icmph; + __u32 reachable_time; + __u32 retrans_timer; +}; + +struct nd_opt_hdr { + __u8 nd_opt_type; + __u8 nd_opt_len; +} __attribute__((__packed__)); + + +extern int ndisc_init(struct net_proto_family *ops); + +extern void ndisc_cleanup(void); + +extern int ndisc_rcv(struct sk_buff *skb); + +extern void ndisc_send_ns(struct net_device *dev, + struct neighbour *neigh, + struct in6_addr *solicit, + struct in6_addr *daddr, + struct in6_addr *saddr); + +extern void ndisc_send_rs(struct net_device *dev, + struct in6_addr *saddr, + struct in6_addr *daddr); + +extern void ndisc_forwarding_on(void); +extern void ndisc_forwarding_off(void); + +extern void ndisc_send_redirect(struct sk_buff *skb, + struct neighbour *neigh, + struct in6_addr *target); + +extern int ndisc_mc_map(struct in6_addr *addr, char *buf, struct net_device *dev, int dir); + + +struct rt6_info * dflt_rt_lookup(void); + +/* + * IGMP + */ +extern int igmp6_init(struct net_proto_family *ops); + +extern void igmp6_cleanup(void); + +extern int igmp6_event_query(struct sk_buff *skb); + +extern int igmp6_event_report(struct sk_buff *skb); + +extern void igmp6_cleanup(void); + +#ifdef CONFIG_SYSCTL +extern int ndisc_ifinfo_sysctl_change(ctl_table *ctl, + int write, + struct file * filp, + void __user *buffer, + size_t *lenp, + loff_t *ppos); +#endif + +extern void inet6_ifinfo_notify(int event, + struct inet6_dev *idev); + +static inline struct neighbour * ndisc_get_neigh(struct net_device *dev, struct in6_addr *addr) +{ + + if (dev) + return __neigh_lookup(&nd_tbl, addr, dev, 1); + + return NULL; +} + + +#endif /* __KERNEL__ */ + + +#endif -- cgit v1.2.2