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261 lines
5.9 KiB
261 lines
5.9 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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/* |
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* inet6 interface/address list definitions |
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* Linux INET6 implementation |
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* |
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* Authors: |
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* Pedro Roque <[email protected]> |
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*/ |
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#ifndef _NET_IF_INET6_H |
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#define _NET_IF_INET6_H |
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#include <net/snmp.h> |
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#include <linux/ipv6.h> |
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#include <linux/refcount.h> |
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/* inet6_dev.if_flags */ |
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#define IF_RA_OTHERCONF 0x80 |
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#define IF_RA_MANAGED 0x40 |
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#define IF_RA_RCVD 0x20 |
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#define IF_RS_SENT 0x10 |
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#define IF_READY 0x80000000 |
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/* prefix flags */ |
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#define IF_PREFIX_ONLINK 0x01 |
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#define IF_PREFIX_AUTOCONF 0x02 |
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enum { |
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INET6_IFADDR_STATE_PREDAD, |
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INET6_IFADDR_STATE_DAD, |
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INET6_IFADDR_STATE_POSTDAD, |
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INET6_IFADDR_STATE_ERRDAD, |
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INET6_IFADDR_STATE_DEAD, |
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}; |
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struct inet6_ifaddr { |
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struct in6_addr addr; |
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__u32 prefix_len; |
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__u32 rt_priority; |
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/* In seconds, relative to tstamp. Expiry is at tstamp + HZ * lft. */ |
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__u32 valid_lft; |
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__u32 prefered_lft; |
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refcount_t refcnt; |
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spinlock_t lock; |
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int state; |
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__u32 flags; |
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__u8 dad_probes; |
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__u8 stable_privacy_retry; |
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__u16 scope; |
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__u64 dad_nonce; |
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unsigned long cstamp; /* created timestamp */ |
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unsigned long tstamp; /* updated timestamp */ |
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struct delayed_work dad_work; |
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struct inet6_dev *idev; |
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struct fib6_info *rt; |
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struct hlist_node addr_lst; |
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struct list_head if_list; |
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struct list_head tmp_list; |
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struct inet6_ifaddr *ifpub; |
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int regen_count; |
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bool tokenized; |
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struct rcu_head rcu; |
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struct in6_addr peer_addr; |
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}; |
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struct ip6_sf_socklist { |
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unsigned int sl_max; |
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unsigned int sl_count; |
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struct in6_addr sl_addr[]; |
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}; |
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#define IP6_SFLSIZE(count) (sizeof(struct ip6_sf_socklist) + \ |
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(count) * sizeof(struct in6_addr)) |
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#define IP6_SFBLOCK 10 /* allocate this many at once */ |
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struct ipv6_mc_socklist { |
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struct in6_addr addr; |
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int ifindex; |
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unsigned int sfmode; /* MCAST_{INCLUDE,EXCLUDE} */ |
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struct ipv6_mc_socklist __rcu *next; |
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rwlock_t sflock; |
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struct ip6_sf_socklist *sflist; |
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struct rcu_head rcu; |
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}; |
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struct ip6_sf_list { |
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struct ip6_sf_list *sf_next; |
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struct in6_addr sf_addr; |
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unsigned long sf_count[2]; /* include/exclude counts */ |
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unsigned char sf_gsresp; /* include in g & s response? */ |
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unsigned char sf_oldin; /* change state */ |
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unsigned char sf_crcount; /* retrans. left to send */ |
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}; |
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#define MAF_TIMER_RUNNING 0x01 |
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#define MAF_LAST_REPORTER 0x02 |
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#define MAF_LOADED 0x04 |
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#define MAF_NOREPORT 0x08 |
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#define MAF_GSQUERY 0x10 |
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struct ifmcaddr6 { |
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struct in6_addr mca_addr; |
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struct inet6_dev *idev; |
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struct ifmcaddr6 *next; |
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struct ip6_sf_list *mca_sources; |
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struct ip6_sf_list *mca_tomb; |
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unsigned int mca_sfmode; |
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unsigned char mca_crcount; |
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unsigned long mca_sfcount[2]; |
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struct timer_list mca_timer; |
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unsigned int mca_flags; |
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int mca_users; |
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refcount_t mca_refcnt; |
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spinlock_t mca_lock; |
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unsigned long mca_cstamp; |
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unsigned long mca_tstamp; |
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}; |
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/* Anycast stuff */ |
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struct ipv6_ac_socklist { |
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struct in6_addr acl_addr; |
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int acl_ifindex; |
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struct ipv6_ac_socklist *acl_next; |
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}; |
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struct ifacaddr6 { |
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struct in6_addr aca_addr; |
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struct fib6_info *aca_rt; |
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struct ifacaddr6 *aca_next; |
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struct hlist_node aca_addr_lst; |
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int aca_users; |
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refcount_t aca_refcnt; |
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unsigned long aca_cstamp; |
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unsigned long aca_tstamp; |
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struct rcu_head rcu; |
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}; |
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#define IFA_HOST IPV6_ADDR_LOOPBACK |
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#define IFA_LINK IPV6_ADDR_LINKLOCAL |
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#define IFA_SITE IPV6_ADDR_SITELOCAL |
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struct ipv6_devstat { |
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struct proc_dir_entry *proc_dir_entry; |
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DEFINE_SNMP_STAT(struct ipstats_mib, ipv6); |
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DEFINE_SNMP_STAT_ATOMIC(struct icmpv6_mib_device, icmpv6dev); |
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DEFINE_SNMP_STAT_ATOMIC(struct icmpv6msg_mib_device, icmpv6msgdev); |
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}; |
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struct inet6_dev { |
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struct net_device *dev; |
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struct list_head addr_list; |
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struct ifmcaddr6 *mc_list; |
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struct ifmcaddr6 *mc_tomb; |
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spinlock_t mc_lock; |
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unsigned char mc_qrv; /* Query Robustness Variable */ |
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unsigned char mc_gq_running; |
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unsigned char mc_ifc_count; |
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unsigned char mc_dad_count; |
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unsigned long mc_v1_seen; /* Max time we stay in MLDv1 mode */ |
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unsigned long mc_qi; /* Query Interval */ |
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unsigned long mc_qri; /* Query Response Interval */ |
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unsigned long mc_maxdelay; |
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struct timer_list mc_gq_timer; /* general query timer */ |
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struct timer_list mc_ifc_timer; /* interface change timer */ |
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struct timer_list mc_dad_timer; /* dad complete mc timer */ |
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struct ifacaddr6 *ac_list; |
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rwlock_t lock; |
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refcount_t refcnt; |
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__u32 if_flags; |
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int dead; |
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u32 desync_factor; |
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struct list_head tempaddr_list; |
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struct in6_addr token; |
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struct neigh_parms *nd_parms; |
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struct ipv6_devconf cnf; |
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struct ipv6_devstat stats; |
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struct timer_list rs_timer; |
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__s32 rs_interval; /* in jiffies */ |
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__u8 rs_probes; |
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unsigned long tstamp; /* ipv6InterfaceTable update timestamp */ |
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struct rcu_head rcu; |
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}; |
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static inline void ipv6_eth_mc_map(const struct in6_addr *addr, char *buf) |
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{ |
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/* |
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* +-------+-------+-------+-------+-------+-------+ |
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* | 33 | 33 | DST13 | DST14 | DST15 | DST16 | |
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* +-------+-------+-------+-------+-------+-------+ |
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*/ |
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buf[0]= 0x33; |
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buf[1]= 0x33; |
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memcpy(buf + 2, &addr->s6_addr32[3], sizeof(__u32)); |
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} |
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static inline void ipv6_arcnet_mc_map(const struct in6_addr *addr, char *buf) |
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{ |
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buf[0] = 0x00; |
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} |
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static inline void ipv6_ib_mc_map(const struct in6_addr *addr, |
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const unsigned char *broadcast, char *buf) |
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{ |
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unsigned char scope = broadcast[5] & 0xF; |
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buf[0] = 0; /* Reserved */ |
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buf[1] = 0xff; /* Multicast QPN */ |
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buf[2] = 0xff; |
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buf[3] = 0xff; |
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buf[4] = 0xff; |
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buf[5] = 0x10 | scope; /* scope from broadcast address */ |
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buf[6] = 0x60; /* IPv6 signature */ |
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buf[7] = 0x1b; |
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buf[8] = broadcast[8]; /* P_Key */ |
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buf[9] = broadcast[9]; |
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memcpy(buf + 10, addr->s6_addr + 6, 10); |
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} |
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static inline int ipv6_ipgre_mc_map(const struct in6_addr *addr, |
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const unsigned char *broadcast, char *buf) |
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{ |
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if ((broadcast[0] | broadcast[1] | broadcast[2] | broadcast[3]) != 0) { |
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memcpy(buf, broadcast, 4); |
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} else { |
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/* v4mapped? */ |
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if ((addr->s6_addr32[0] | addr->s6_addr32[1] | |
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(addr->s6_addr32[2] ^ htonl(0x0000ffff))) != 0) |
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return -EINVAL; |
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memcpy(buf, &addr->s6_addr32[3], 4); |
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} |
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return 0; |
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} |
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#endif
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