| #ifndef _IPV6_H |
| #define _IPV6_H |
| |
| #include <linux/types.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 ip6_mtuinfo { |
| struct sockaddr_in6 ip6m_addr; |
| __u32 ip6m_mtu; |
| }; |
| |
| struct in6_ifreq { |
| struct in6_addr ifr6_addr; |
| __u32 ifr6_prefixlen; |
| int ifr6_ifindex; |
| }; |
| |
| #define IPV6_SRCRT_STRICT 0x01 /* Deprecated; will be removed */ |
| #define IPV6_SRCRT_TYPE_0 0 /* Deprecated; will be removed */ |
| #define IPV6_SRCRT_TYPE_2 2 /* IPv6 type 2 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. |
| */ |
| } __attribute__((packed)); /* required for some archs */ |
| |
| #define ipv6_destopt_hdr ipv6_opt_hdr |
| #define ipv6_hopopt_hdr ipv6_opt_hdr |
| |
| |
| /* |
| * 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 |
| }; |
| |
| /* |
| * routing header type 2 |
| */ |
| |
| struct rt2_hdr { |
| struct ipv6_rt_hdr rt_hdr; |
| __u32 reserved; |
| struct in6_addr addr; |
| |
| #define rt2_type rt_hdr.type |
| }; |
| |
| /* |
| * home address option in destination options header |
| */ |
| |
| struct ipv6_destopt_hao { |
| __u8 type; |
| __u8 length; |
| struct in6_addr addr; |
| } __attribute__((packed)); |
| |
| /* |
| * 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]; |
| |
| __be16 payload_len; |
| __u8 nexthdr; |
| __u8 hop_limit; |
| |
| struct in6_addr saddr; |
| struct in6_addr daddr; |
| }; |
| |
| |
| /* 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_ACCEPT_RA_DEFRTR, |
| DEVCONF_ACCEPT_RA_PINFO, |
| DEVCONF_ACCEPT_RA_RTR_PREF, |
| DEVCONF_RTR_PROBE_INTERVAL, |
| DEVCONF_ACCEPT_RA_RT_INFO_MAX_PLEN, |
| DEVCONF_PROXY_NDP, |
| DEVCONF_OPTIMISTIC_DAD, |
| DEVCONF_ACCEPT_SOURCE_ROUTE, |
| DEVCONF_MC_FORWARDING, |
| DEVCONF_DISABLE_IPV6, |
| DEVCONF_ACCEPT_DAD, |
| DEVCONF_FORCE_TLLAO, |
| DEVCONF_MAX |
| }; |
| |
| |
| #endif /* _IPV6_H */ |
