diff options
Diffstat (limited to 'pfinet/linux-src/include/net/addrconf.h')
| -rw-r--r-- | pfinet/linux-src/include/net/addrconf.h | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/pfinet/linux-src/include/net/addrconf.h b/pfinet/linux-src/include/net/addrconf.h new file mode 100644 index 00000000..d711d0d5 --- /dev/null +++ b/pfinet/linux-src/include/net/addrconf.h @@ -0,0 +1,158 @@ +#ifndef _ADDRCONF_H +#define _ADDRCONF_H + +#define RETRANS_TIMER HZ + +#define MAX_RTR_SOLICITATIONS 3 +#define RTR_SOLICITATION_INTERVAL (4*HZ) + +#define ADDR_CHECK_FREQUENCY (120*HZ) + +struct prefix_info { + __u8 type; + __u8 length; + __u8 prefix_len; + +#if defined(__BIG_ENDIAN_BITFIELD) + __u8 onlink : 1, + autoconf : 1, + reserved : 6; +#elif defined(__LITTLE_ENDIAN_BITFIELD) + __u8 reserved : 6, + autoconf : 1, + onlink : 1; +#else +#error "Please fix <asm/byteorder.h>" +#endif + __u32 valid; + __u32 prefered; + __u32 reserved2; + + struct in6_addr prefix; +}; + + +#ifdef __KERNEL__ + +#include <linux/in6.h> +#include <linux/netdevice.h> +#include <net/if_inet6.h> + +#define IN6_ADDR_HSIZE 16 + +extern void addrconf_init(void); +extern void addrconf_cleanup(void); + +extern int addrconf_notify(struct notifier_block *this, + unsigned long event, + void * data); + +extern int addrconf_add_ifaddr(void *arg); +extern int addrconf_del_ifaddr(void *arg); +extern int addrconf_set_dstaddr(void *arg); + +extern struct inet6_ifaddr * ipv6_chk_addr(struct in6_addr *addr, + struct device *dev, int nd); +extern int ipv6_get_saddr(struct dst_entry *dst, + struct in6_addr *daddr, + struct in6_addr *saddr); +extern struct inet6_ifaddr * ipv6_get_lladdr(struct device *dev); + +/* + * multicast prototypes (mcast.c) + */ +extern int ipv6_sock_mc_join(struct sock *sk, + int ifindex, + struct in6_addr *addr); +extern int ipv6_sock_mc_drop(struct sock *sk, + int ifindex, + struct in6_addr *addr); +extern void ipv6_sock_mc_close(struct sock *sk); + +extern int ipv6_dev_mc_inc(struct device *dev, + struct in6_addr *addr); +extern int ipv6_dev_mc_dec(struct device *dev, + struct in6_addr *addr); +extern void ipv6_mc_up(struct inet6_dev *idev); +extern void ipv6_mc_down(struct inet6_dev *idev); +extern void ipv6_mc_destroy_dev(struct inet6_dev *idev); +extern void addrconf_dad_failure(struct inet6_ifaddr *ifp); + +extern int ipv6_chk_mcast_addr(struct device *dev, + struct in6_addr *addr); + +extern void addrconf_prefix_rcv(struct device *dev, + u8 *opt, int len); + +extern struct inet6_dev * ipv6_get_idev(struct device *dev); + +extern void addrconf_forwarding_on(void); +/* + * Hash function taken from net_alias.c + */ + +static __inline__ u8 ipv6_addr_hash(struct in6_addr *addr) +{ + __u32 word; + unsigned tmp; + + /* + * We perform the hash function over the last 64 bits of the address + * This will include the IEEE address token on links that support it. + */ + + word = addr->s6_addr[2] ^ addr->s6_addr32[3]; + tmp = word ^ (word>>16); + tmp ^= (tmp >> 8); + + return ((tmp ^ (tmp >> 4)) & 0x0f); +} + +static __inline__ int ipv6_devindex_hash(int ifindex) +{ + return ifindex & (IN6_ADDR_HSIZE - 1); +} + +/* + * compute link-local solicited-node multicast address + */ + +extern __inline__ void addrconf_addr_solict_mult_old(struct in6_addr *addr, + struct in6_addr *solicited) +{ + ipv6_addr_set(solicited, + __constant_htonl(0xFF020000), 0, + __constant_htonl(0x1), addr->s6_addr32[3]); +} + +extern __inline__ void addrconf_addr_solict_mult_new(struct in6_addr *addr, + struct in6_addr *solicited) +{ + ipv6_addr_set(solicited, + __constant_htonl(0xFF020000), 0, + __constant_htonl(0x1), + __constant_htonl(0xFF000000) | addr->s6_addr32[3]); +} + + +extern __inline__ void ipv6_addr_all_nodes(struct in6_addr *addr) +{ + ipv6_addr_set(addr, + __constant_htonl(0xFF020000), 0, 0, + __constant_htonl(0x1)); +} + +extern __inline__ void ipv6_addr_all_routers(struct in6_addr *addr) +{ + ipv6_addr_set(addr, + __constant_htonl(0xFF020000), 0, 0, + __constant_htonl(0x2)); +} + +extern __inline__ int ipv6_addr_is_multicast(struct in6_addr *addr) +{ + return (addr->s6_addr32[0] & __constant_htonl(0xFF000000)) == __constant_htonl(0xFF000000); +} + +#endif +#endif |