| /* |
| * 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 |
| |
| enum { |
| INET6_IFADDR_STATE_DAD, |
| INET6_IFADDR_STATE_POSTDAD, |
| INET6_IFADDR_STATE_UP, |
| INET6_IFADDR_STATE_DEAD, |
| }; |
| |
| struct inet6_ifaddr { |
| struct in6_addr addr; |
| __u32 prefix_len; |
| |
| /* In seconds, relative to tstamp. Expiry is at tstamp + HZ * lft. */ |
| __u32 valid_lft; |
| __u32 prefered_lft; |
| atomic_t refcnt; |
| spinlock_t lock; |
| spinlock_t state_lock; |
| |
| int state; |
| |
| __u8 dad_probes; |
| __u8 flags; |
| |
| __u16 scope; |
| |
| unsigned long cstamp; /* created timestamp */ |
| unsigned long tstamp; /* updated timestamp */ |
| |
| struct timer_list dad_timer; |
| |
| struct inet6_dev *idev; |
| struct rt6_info *rt; |
| |
| struct hlist_node addr_lst; |
| struct list_head if_list; |
| |
| struct list_head tmp_list; |
| struct inet6_ifaddr *ifpub; |
| int regen_count; |
| |
| bool tokenized; |
| |
| struct rcu_head rcu; |
| struct in6_addr peer_addr; |
| }; |
| |
| 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 __rcu *next; |
| rwlock_t sflock; |
| unsigned int sfmode; /* MCAST_{INCLUDE,EXCLUDE} */ |
| struct ip6_sf_socklist *sflist; |
| struct rcu_head rcu; |
| }; |
| |
| 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 int 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_ATOMIC(struct icmpv6_mib_device, icmpv6dev); |
| DEFINE_SNMP_STAT_ATOMIC(struct icmpv6msg_mib_device, icmpv6msgdev); |
| }; |
| |
| struct inet6_dev { |
| struct net_device *dev; |
| |
| struct list_head addr_list; |
| |
| struct ifmcaddr6 *mc_list; |
| struct ifmcaddr6 *mc_tomb; |
| spinlock_t mc_lock; |
| |
| unsigned char mc_qrv; /* Query Robustness Variable */ |
| unsigned char mc_gq_running; |
| unsigned char mc_ifc_count; |
| unsigned char mc_dad_count; |
| |
| unsigned long mc_v1_seen; /* Max time we stay in MLDv1 mode */ |
| unsigned long mc_qi; /* Query Interval */ |
| unsigned long mc_qri; /* Query Response Interval */ |
| unsigned long mc_maxdelay; |
| |
| struct timer_list mc_gq_timer; /* general query timer */ |
| struct timer_list mc_ifc_timer; /* interface change timer */ |
| struct timer_list mc_dad_timer; /* dad complete mc timer */ |
| |
| struct ifacaddr6 *ac_list; |
| rwlock_t lock; |
| atomic_t refcnt; |
| __u32 if_flags; |
| int dead; |
| |
| u8 rndid[8]; |
| struct timer_list regen_timer; |
| struct list_head tempaddr_list; |
| |
| struct in6_addr token; |
| |
| struct neigh_parms *nd_parms; |
| struct ipv6_devconf cnf; |
| struct ipv6_devstat stats; |
| |
| struct timer_list rs_timer; |
| __u8 rs_probes; |
| |
| unsigned long tstamp; /* ipv6InterfaceTable update timestamp */ |
| struct rcu_head rcu; |
| }; |
| |
| static inline void ipv6_eth_mc_map(const 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_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); |
| } |
| |
| static inline int ipv6_ipgre_mc_map(const struct in6_addr *addr, |
| const unsigned char *broadcast, char *buf) |
| { |
| if ((broadcast[0] | broadcast[1] | broadcast[2] | broadcast[3]) != 0) { |
| memcpy(buf, broadcast, 4); |
| } else { |
| /* v4mapped? */ |
| if ((addr->s6_addr32[0] | addr->s6_addr32[1] | |
| (addr->s6_addr32[2] ^ htonl(0x0000ffff))) != 0) |
| return -EINVAL; |
| memcpy(buf, &addr->s6_addr32[3], 4); |
| } |
| return 0; |
| } |
| |
| #endif |