http://www.ousob.com --- Legacy Redefined OuSob - File: /wwwroot/clipx/usr/include/linux/ipv6.h

#ifndef _IPV6_H #define _IPV6_H #include <linux/config.h> #include <linux/in6.h> #include <asm/byteorder.h> /* The latest drafts declared increase in minimal mtu up to 1280. */ #define IPV6_MIN_MTU 1280 /* * Advanced API * source interface/address selection, source routing, etc... * *under construction* */ struct in6_pktinfo { struct in6_addr ipi6_addr; int ipi6_ifindex; }; struct in6_ifreq { struct in6_addr ifr6_addr; __u32 ifr6_prefixlen; int ifr6_ifindex; }; #define IPV6_SRCRT_STRICT 0x01 /* this hop must be a neighbor */ #define IPV6_SRCRT_TYPE_0 0 /* IPv6 type 0 Routing Header */ /* * routing header */ struct ipv6_rt_hdr { __u8 nexthdr; __u8 hdrlen; __u8 type; __u8 segments_left; /* * type specific data * variable length field */ }; struct ipv6_opt_hdr { __u8 nexthdr; __u8 hdrlen; /* * TLV encoded option data follows. */ }; #define ipv6_destopt_hdr ipv6_opt_hdr #define ipv6_hopopt_hdr ipv6_opt_hdr #ifdef __KERNEL__ #define ipv6_optlen(p) (((p)->hdrlen+1) << 3) #endif /* * routing header type 0 (used in cmsghdr struct) */ struct rt0_hdr { struct ipv6_rt_hdr rt_hdr; __u32 reserved; struct in6_addr addr[0]; #define rt0_type rt_hdr.type }; struct ipv6_auth_hdr { __u8 nexthdr; __u8 hdrlen; /* This one is measured in 32 bit units! */ __u16 reserved; __u32 spi; __u32 seq_no; /* Sequence number */ __u8 auth_data[0]; /* Length variable but >=4. Mind the 64 bit alignment! */ }; struct ipv6_esp_hdr { __u32 spi; __u32 seq_no; /* Sequence number */ __u8 enc_data[0]; /* Length variable but >=8. Mind the 64 bit alignment! */ }; struct ipv6_comp_hdr { __u8 nexthdr; __u8 flags; __u16 cpi; }; /* * IPv6 fixed header * * BEWARE, it is incorrect. The first 4 bits of flow_lbl * are glued to priority now, forming "class". */ struct ipv6hdr { #if defined(__LITTLE_ENDIAN_BITFIELD) __u8 priority:4, version:4; #elif defined(__BIG_ENDIAN_BITFIELD) __u8 version:4, priority:4; #else #error "Please fix <asm/byteorder.h>" #endif __u8 flow_lbl[3]; __u16 payload_len; __u8 nexthdr; __u8 hop_limit; struct in6_addr saddr; struct in6_addr daddr; }; /* * This structure contains configuration options per IPv6 link. */ struct ipv6_devconf { __s32 forwarding; __s32 hop_limit; __s32 mtu6; __s32 accept_ra; __s32 accept_redirects; __s32 autoconf; __s32 dad_transmits; __s32 rtr_solicits; __s32 rtr_solicit_interval; __s32 rtr_solicit_delay; __s32 force_mld_version; #ifdef CONFIG_IPV6_PRIVACY __s32 use_tempaddr; __s32 temp_valid_lft; __s32 temp_prefered_lft; __s32 regen_max_retry; __s32 max_desync_factor; #endif __s32 max_addresses; void *sysctl; }; /* index values for the variables in ipv6_devconf */ enum { DEVCONF_FORWARDING = 0, DEVCONF_HOPLIMIT, DEVCONF_MTU6, DEVCONF_ACCEPT_RA, DEVCONF_ACCEPT_REDIRECTS, DEVCONF_AUTOCONF, DEVCONF_DAD_TRANSMITS, DEVCONF_RTR_SOLICITS, DEVCONF_RTR_SOLICIT_INTERVAL, DEVCONF_RTR_SOLICIT_DELAY, DEVCONF_USE_TEMPADDR, DEVCONF_TEMP_VALID_LFT, DEVCONF_TEMP_PREFERED_LFT, DEVCONF_REGEN_MAX_RETRY, DEVCONF_MAX_DESYNC_FACTOR, DEVCONF_MAX_ADDRESSES, DEVCONF_FORCE_MLD_VERSION, DEVCONF_MAX }; #ifdef __KERNEL__ #include <linux/icmpv6.h> #include <linux/tcp.h> #include <linux/udp.h> #include <net/if_inet6.h> /* struct ipv6_mc_socklist */ #include <net/inet_sock.h> /* This structure contains results of exthdrs parsing as offsets from skb->nh. */ struct inet6_skb_parm { int iif; __u16 ra; __u16 hop; __u16 dst0; __u16 srcrt; __u16 dst1; __u16 lastopt; __u32 nhoff; __u16 flags; #define IP6SKB_XFRM_TRANSFORMED 1 }; #define IP6CB(skb) ((struct inet6_skb_parm*)((skb)->cb)) static inline int inet6_iif(const struct sk_buff *skb) { return IP6CB(skb)->iif; } struct inet6_request_sock { struct in6_addr loc_addr; struct in6_addr rmt_addr; struct sk_buff *pktopts; int iif; }; struct tcp6_request_sock { struct tcp_request_sock tcp6rsk_tcp; struct inet6_request_sock tcp6rsk_inet6; }; /** * struct ipv6_pinfo - ipv6 private area * * In the struct sock hierarchy (tcp6_sock, upd6_sock, etc) * this _must_ be the last member, so that inet6_sk_generic * is able to calculate its offset from the base struct sock * by using the struct proto->slab_obj_size member. -acme */ struct ipv6_pinfo { struct in6_addr saddr; struct in6_addr rcv_saddr; struct in6_addr daddr; struct in6_addr *daddr_cache; __u32 flow_label; __u32 frag_size; __s16 hop_limit; __s16 mcast_hops; int mcast_oif; /* pktoption flags */ union { struct { __u16 srcrt:2, osrcrt:2, rxinfo:1, rxoinfo:1, rxhlim:1, rxohlim:1, hopopts:1, ohopopts:1, dstopts:1, odstopts:1, rxflow:1, rxtclass:1; } bits; __u16 all; } rxopt; /* sockopt flags */ __u8 mc_loop:1, recverr:1, sndflow:1, pmtudisc:2, ipv6only:1; __u8 tclass; __u32 dst_cookie; struct ipv6_mc_socklist *ipv6_mc_list; struct ipv6_ac_socklist *ipv6_ac_list; struct ipv6_fl_socklist *ipv6_fl_list; struct ipv6_txoptions *opt; struct sk_buff *pktoptions; struct { struct ipv6_txoptions *opt; struct rt6_info *rt; int hop_limit; int tclass; } cork; }; /* WARNING: don't change the layout of the members in {raw,udp,tcp}6_sock! */ struct raw6_sock { /* inet_sock has to be the first member of raw6_sock */ struct inet_sock inet; __u32 checksum; /* perform checksum */ __u32 offset; /* checksum offset */ struct icmp6_filter filter; /* ipv6_pinfo has to be the last member of raw6_sock, see inet6_sk_generic */ struct ipv6_pinfo inet6; }; struct udp6_sock { struct udp_sock udp; /* ipv6_pinfo has to be the last member of udp6_sock, see inet6_sk_generic */ struct ipv6_pinfo inet6; }; struct tcp6_sock { struct tcp_sock tcp; /* ipv6_pinfo has to be the last member of tcp6_sock, see inet6_sk_generic */ struct ipv6_pinfo inet6; }; extern int inet6_sk_rebuild_header(struct sock *sk); #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) static inline struct ipv6_pinfo * inet6_sk(const struct sock *__sk) { return inet_sk(__sk)->pinet6; } static inline struct inet6_request_sock * inet6_rsk(const struct request_sock *rsk) { return (struct inet6_request_sock *)(((u8 *)rsk) + inet_rsk(rsk)->inet6_rsk_offset); } static inline u32 inet6_rsk_offset(struct request_sock *rsk) { return rsk->rsk_ops->obj_size - sizeof(struct inet6_request_sock); } static inline struct request_sock *inet6_reqsk_alloc(struct request_sock_ops *ops) { struct request_sock *req = reqsk_alloc(ops); if (req != NULL) inet_rsk(req)->inet6_rsk_offset = inet6_rsk_offset(req); return req; } static inline struct raw6_sock *raw6_sk(const struct sock *sk) { return (struct raw6_sock *)sk; } static inline void inet_sk_copy_descendant(struct sock *sk_to, const struct sock *sk_from) { int ancestor_size = sizeof(struct inet_sock); if (sk_from->sk_family == PF_INET6) ancestor_size += sizeof(struct ipv6_pinfo); __inet_sk_copy_descendant(sk_to, sk_from, ancestor_size); } #define __ipv6_only_sock(sk) (inet6_sk(sk)->ipv6only) #define ipv6_only_sock(sk) ((sk)->sk_family == PF_INET6 && __ipv6_only_sock(sk)) struct inet6_timewait_sock { struct in6_addr tw_v6_daddr; struct in6_addr tw_v6_rcv_saddr; }; struct tcp6_timewait_sock { struct tcp_timewait_sock tcp6tw_tcp; struct inet6_timewait_sock tcp6tw_inet6; }; static inline u16 inet6_tw_offset(const struct proto *prot) { return prot->twsk_prot->twsk_obj_size - sizeof(struct inet6_timewait_sock); } static inline struct inet6_timewait_sock *inet6_twsk(const struct sock *sk) { return (struct inet6_timewait_sock *)(((u8 *)sk) + inet_twsk(sk)->tw_ipv6_offset); } static inline struct in6_addr *__inet6_rcv_saddr(const struct sock *sk) { return likely(sk->sk_state != TCP_TIME_WAIT) ? &inet6_sk(sk)->rcv_saddr : &inet6_twsk(sk)->tw_v6_rcv_saddr; } static inline struct in6_addr *inet6_rcv_saddr(const struct sock *sk) { return sk->sk_family == AF_INET6 ? __inet6_rcv_saddr(sk) : NULL; } static inline int inet_v6_ipv6only(const struct sock *sk) { return likely(sk->sk_state != TCP_TIME_WAIT) ? ipv6_only_sock(sk) : inet_twsk(sk)->tw_ipv6only; } #else #define __ipv6_only_sock(sk) 0 #define ipv6_only_sock(sk) 0 static inline struct ipv6_pinfo * inet6_sk(const struct sock *__sk) { return NULL; } static inline struct inet6_request_sock * inet6_rsk(const struct request_sock *rsk) { return NULL; } static inline struct raw6_sock *raw6_sk(const struct sock *sk) { return NULL; } #define __inet6_rcv_saddr(__sk) NULL #define inet6_rcv_saddr(__sk) NULL #define tcp_twsk_ipv6only(__sk) 0 #define inet_v6_ipv6only(__sk) 0 #endif /* defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) */ #define INET6_MATCH(__sk, __hash, __saddr, __daddr, __ports, __dif)\ (((__sk)->sk_hash == (__hash)) && \ ((*((__u32 *)&(inet_sk(__sk)->dport))) == (__ports)) && \ ((__sk)->sk_family == AF_INET6) && \ ipv6_addr_equal(&inet6_sk(__sk)->daddr, (__saddr)) && \ ipv6_addr_equal(&inet6_sk(__sk)->rcv_saddr, (__daddr)) && \ (!((__sk)->sk_bound_dev_if) || ((__sk)->sk_bound_dev_if == (__dif)))) #endif /* __KERNEL__ */ #endif /* _IPV6_H */