/* * 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 #define IF_READY 0x80000000 /* 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; atomic_t refcnt; spinlock_t lock; __u8 probes; __u8 flags; __u16 scope; unsigned long cstamp; /* created timestamp */ unsigned long tstamp; /* updated timestamp */ 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; rwlock_t sflock; 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 char mca_crcount; 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 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 struct ipv6_devstat { struct proc_dir_entry *proc_dir_entry; DEFINE_SNMP_STAT(struct ipstats_mib, ipv6); DEFINE_SNMP_STAT(struct icmpv6_mib, icmpv6); DEFINE_SNMP_STAT(struct icmpv6msg_mib, icmpv6msg); }; 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 char mc_qrv; unsigned char mc_gq_running; unsigned char mc_ifc_count; unsigned long mc_v1_seen; unsigned long mc_maxdelay; 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]; struct timer_list regen_timer; struct inet6_ifaddr *tempaddr_list; #endif struct neigh_parms *nd_parms; struct inet6_dev *next; struct ipv6_devconf cnf; struct ipv6_devstat stats; unsigned long tstamp; /* ipv6InterfaceTable update timestamp */ struct rcu_head rcu; }; 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(const struct in6_addr *addr, const unsigned char *broadcast, char *buf) { unsigned char scope = broadcast[5] & 0xF; buf[0] = 0; /* Reserved */ buf[1] = 0xff; /* Multicast QPN */ buf[2] = 0xff; buf[3] = 0xff; buf[4] = 0xff; buf[5] = 0x10 | scope; /* scope from broadcast address */ buf[6] = 0x60; /* IPv6 signature */ buf[7] = 0x1b; buf[8] = broadcast[8]; /* P_Key */ buf[9] = broadcast[9]; memcpy(buf + 10, addr->s6_addr + 6, 10); } #endif #endif