diff options
Diffstat (limited to 'include/net/if_inet6.h')
| -rw-r--r-- | include/net/if_inet6.h | 285 |
1 files changed, 285 insertions, 0 deletions
diff --git a/include/net/if_inet6.h b/include/net/if_inet6.h new file mode 100644 index 000000000000..e97a9accb71d --- /dev/null +++ b/include/net/if_inet6.h @@ -0,0 +1,285 @@ +/* + * inet6 interface/address list definitions + * Linux INET6 implementation + * + * Authors: + * Pedro Roque <roque@di.fc.ul.pt> + * + * + * 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. + */ + +#ifndef _NET_IF_INET6_H +#define _NET_IF_INET6_H + +#include <net/snmp.h> +#include <linux/ipv6.h> + +/* inet6_dev.if_flags */ + +#define IF_RA_OTHERCONF 0x80 +#define IF_RA_MANAGED 0x40 +#define IF_RA_RCVD 0x20 +#define IF_RS_SENT 0x10 + +/* prefix flags */ +#define IF_PREFIX_ONLINK 0x01 +#define IF_PREFIX_AUTOCONF 0x02 + +#ifdef __KERNEL__ + +struct inet6_ifaddr +{ + struct in6_addr addr; + __u32 prefix_len; + + __u32 valid_lft; + __u32 prefered_lft; + unsigned long cstamp; /* created timestamp */ + unsigned long tstamp; /* updated timestamp */ + atomic_t refcnt; + spinlock_t lock; + + __u8 probes; + __u8 flags; + + __u16 scope; + + struct timer_list timer; + + struct inet6_dev *idev; + struct rt6_info *rt; + + struct inet6_ifaddr *lst_next; /* next addr in addr_lst */ + struct inet6_ifaddr *if_next; /* next addr in inet6_dev */ + +#ifdef CONFIG_IPV6_PRIVACY + struct inet6_ifaddr *tmp_next; /* next addr in tempaddr_lst */ + struct inet6_ifaddr *ifpub; + int regen_count; +#endif + + int dead; +}; + +struct ip6_sf_socklist +{ + unsigned int sl_max; + unsigned int sl_count; + struct in6_addr sl_addr[0]; +}; + +#define IP6_SFLSIZE(count) (sizeof(struct ip6_sf_socklist) + \ + (count) * sizeof(struct in6_addr)) + +#define IP6_SFBLOCK 10 /* allocate this many at once */ + +struct ipv6_mc_socklist +{ + struct in6_addr addr; + int ifindex; + struct ipv6_mc_socklist *next; + unsigned int sfmode; /* MCAST_{INCLUDE,EXCLUDE} */ + struct ip6_sf_socklist *sflist; +}; + +struct ip6_sf_list +{ + struct ip6_sf_list *sf_next; + struct in6_addr sf_addr; + unsigned long sf_count[2]; /* include/exclude counts */ + unsigned char sf_gsresp; /* include in g & s response? */ + unsigned char sf_oldin; /* change state */ + unsigned char sf_crcount; /* retrans. left to send */ +}; + +#define MAF_TIMER_RUNNING 0x01 +#define MAF_LAST_REPORTER 0x02 +#define MAF_LOADED 0x04 +#define MAF_NOREPORT 0x08 +#define MAF_GSQUERY 0x10 + +struct ifmcaddr6 +{ + struct in6_addr mca_addr; + struct inet6_dev *idev; + struct ifmcaddr6 *next; + struct ip6_sf_list *mca_sources; + struct ip6_sf_list *mca_tomb; + unsigned int mca_sfmode; + unsigned long mca_sfcount[2]; + struct timer_list mca_timer; + unsigned mca_flags; + int mca_users; + atomic_t mca_refcnt; + spinlock_t mca_lock; + unsigned char mca_crcount; + unsigned long mca_cstamp; + unsigned long mca_tstamp; +}; + +/* Anycast stuff */ + +struct ipv6_ac_socklist +{ + struct in6_addr acl_addr; + int acl_ifindex; + struct ipv6_ac_socklist *acl_next; +}; + +struct ifacaddr6 +{ + struct in6_addr aca_addr; + struct inet6_dev *aca_idev; + struct rt6_info *aca_rt; + struct ifacaddr6 *aca_next; + int aca_users; + atomic_t aca_refcnt; + spinlock_t aca_lock; + unsigned long aca_cstamp; + unsigned long aca_tstamp; +}; + +#define IFA_HOST IPV6_ADDR_LOOPBACK +#define IFA_LINK IPV6_ADDR_LINKLOCAL +#define IFA_SITE IPV6_ADDR_SITELOCAL +#define IFA_GLOBAL 0x0000U + +struct ipv6_devstat { + struct proc_dir_entry *proc_dir_entry; + DEFINE_SNMP_STAT(struct icmpv6_mib, icmpv6); +}; + +struct inet6_dev +{ + struct net_device *dev; + + struct inet6_ifaddr *addr_list; + + struct ifmcaddr6 *mc_list; + struct ifmcaddr6 *mc_tomb; + rwlock_t mc_lock; + unsigned long mc_v1_seen; + unsigned long mc_maxdelay; + unsigned char mc_qrv; + unsigned char mc_gq_running; + unsigned char mc_ifc_count; + struct timer_list mc_gq_timer; /* general query timer */ + struct timer_list mc_ifc_timer; /* interface change timer */ + + struct ifacaddr6 *ac_list; + rwlock_t lock; + atomic_t refcnt; + __u32 if_flags; + int dead; + +#ifdef CONFIG_IPV6_PRIVACY + u8 rndid[8]; + u8 entropy[8]; + struct timer_list regen_timer; + struct inet6_ifaddr *tempaddr_list; + __u8 work_eui64[8]; + __u8 work_digest[16]; +#endif + + struct neigh_parms *nd_parms; + struct inet6_dev *next; + struct ipv6_devconf cnf; + struct ipv6_devstat stats; + unsigned long tstamp; /* ipv6InterfaceTable update timestamp */ +}; + +extern struct ipv6_devconf ipv6_devconf; + +static inline void ipv6_eth_mc_map(struct in6_addr *addr, char *buf) +{ + /* + * +-------+-------+-------+-------+-------+-------+ + * | 33 | 33 | DST13 | DST14 | DST15 | DST16 | + * +-------+-------+-------+-------+-------+-------+ + */ + + buf[0]= 0x33; + buf[1]= 0x33; + + memcpy(buf + 2, &addr->s6_addr32[3], sizeof(__u32)); +} + +static inline void ipv6_tr_mc_map(struct in6_addr *addr, char *buf) +{ + /* All nodes FF01::1, FF02::1, FF02::1:FFxx:xxxx */ + + if (((addr->s6_addr[0] == 0xFF) && + ((addr->s6_addr[1] == 0x01) || (addr->s6_addr[1] == 0x02)) && + (addr->s6_addr16[1] == 0) && + (addr->s6_addr32[1] == 0) && + (addr->s6_addr32[2] == 0) && + (addr->s6_addr16[6] == 0) && + (addr->s6_addr[15] == 1)) || + ((addr->s6_addr[0] == 0xFF) && + (addr->s6_addr[1] == 0x02) && + (addr->s6_addr16[1] == 0) && + (addr->s6_addr32[1] == 0) && + (addr->s6_addr16[4] == 0) && + (addr->s6_addr[10] == 0) && + (addr->s6_addr[11] == 1) && + (addr->s6_addr[12] == 0xff))) + { + buf[0]=0xC0; + buf[1]=0x00; + buf[2]=0x01; + buf[3]=0x00; + buf[4]=0x00; + buf[5]=0x00; + /* All routers FF0x::2 */ + } else if ((addr->s6_addr[0] ==0xff) && + ((addr->s6_addr[1] & 0xF0) == 0) && + (addr->s6_addr16[1] == 0) && + (addr->s6_addr32[1] == 0) && + (addr->s6_addr32[2] == 0) && + (addr->s6_addr16[6] == 0) && + (addr->s6_addr[15] == 2)) + { + buf[0]=0xC0; + buf[1]=0x00; + buf[2]=0x02; + buf[3]=0x00; + buf[4]=0x00; + buf[5]=0x00; + } else { + unsigned char i ; + + i = addr->s6_addr[15] & 7 ; + buf[0]=0xC0; + buf[1]=0x00; + buf[2]=0x00; + buf[3]=0x01 << i ; + buf[4]=0x00; + buf[5]=0x00; + } +} + +static inline void ipv6_arcnet_mc_map(const struct in6_addr *addr, char *buf) +{ + buf[0] = 0x00; +} + +static inline void ipv6_ib_mc_map(struct in6_addr *addr, char *buf) +{ + buf[0] = 0; /* Reserved */ + buf[1] = 0xff; /* Multicast QPN */ + buf[2] = 0xff; + buf[3] = 0xff; + buf[4] = 0xff; + buf[5] = 0x12; /* link local scope */ + buf[6] = 0x60; /* IPv6 signature */ + buf[7] = 0x1b; + buf[8] = 0; /* P_Key */ + buf[9] = 0; + memcpy(buf + 10, addr->s6_addr + 6, 10); +} +#endif +#endif |