16f52b16cSGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2607ca46eSDavid Howells #ifndef _UAPI_IPV6_H 3607ca46eSDavid Howells #define _UAPI_IPV6_H 4607ca46eSDavid Howells 5c66ad9caSWillem de Bruijn #include <linux/libc-compat.h> 6607ca46eSDavid Howells #include <linux/types.h> 703702d4dSHerton R. Krzesinski #include <linux/stddef.h> 8607ca46eSDavid Howells #include <linux/in6.h> 9607ca46eSDavid Howells #include <asm/byteorder.h> 10607ca46eSDavid Howells 11607ca46eSDavid Howells /* The latest drafts declared increase in minimal mtu up to 1280. */ 12607ca46eSDavid Howells 13607ca46eSDavid Howells #define IPV6_MIN_MTU 1280 14607ca46eSDavid Howells 15607ca46eSDavid Howells /* 16607ca46eSDavid Howells * Advanced API 17607ca46eSDavid Howells * source interface/address selection, source routing, etc... 18607ca46eSDavid Howells * *under construction* 19607ca46eSDavid Howells */ 20607ca46eSDavid Howells 213b50d902SWANG Cong #if __UAPI_DEF_IN6_PKTINFO 22607ca46eSDavid Howells struct in6_pktinfo { 23607ca46eSDavid Howells struct in6_addr ipi6_addr; 24607ca46eSDavid Howells int ipi6_ifindex; 25607ca46eSDavid Howells }; 263b50d902SWANG Cong #endif 27607ca46eSDavid Howells 283b50d902SWANG Cong #if __UAPI_DEF_IP6_MTUINFO 29607ca46eSDavid Howells struct ip6_mtuinfo { 30607ca46eSDavid Howells struct sockaddr_in6 ip6m_addr; 31607ca46eSDavid Howells __u32 ip6m_mtu; 32607ca46eSDavid Howells }; 333b50d902SWANG Cong #endif 34607ca46eSDavid Howells 35607ca46eSDavid Howells struct in6_ifreq { 36607ca46eSDavid Howells struct in6_addr ifr6_addr; 37607ca46eSDavid Howells __u32 ifr6_prefixlen; 38607ca46eSDavid Howells int ifr6_ifindex; 39607ca46eSDavid Howells }; 40607ca46eSDavid Howells 41607ca46eSDavid Howells #define IPV6_SRCRT_STRICT 0x01 /* Deprecated; will be removed */ 42607ca46eSDavid Howells #define IPV6_SRCRT_TYPE_0 0 /* Deprecated; will be removed */ 43607ca46eSDavid Howells #define IPV6_SRCRT_TYPE_2 2 /* IPv6 type 2 Routing Header */ 448610c7c6SAlexander Aring #define IPV6_SRCRT_TYPE_3 3 /* RPL Segment Routing with IPv6 */ 451ababebaSDavid Lebrun #define IPV6_SRCRT_TYPE_4 4 /* Segment Routing with IPv6 */ 46607ca46eSDavid Howells 47607ca46eSDavid Howells /* 48607ca46eSDavid Howells * routing header 49607ca46eSDavid Howells */ 50607ca46eSDavid Howells struct ipv6_rt_hdr { 51607ca46eSDavid Howells __u8 nexthdr; 52607ca46eSDavid Howells __u8 hdrlen; 53607ca46eSDavid Howells __u8 type; 54607ca46eSDavid Howells __u8 segments_left; 55607ca46eSDavid Howells 56607ca46eSDavid Howells /* 57607ca46eSDavid Howells * type specific data 58607ca46eSDavid Howells * variable length field 59607ca46eSDavid Howells */ 60607ca46eSDavid Howells }; 61607ca46eSDavid Howells 62607ca46eSDavid Howells 63607ca46eSDavid Howells struct ipv6_opt_hdr { 64607ca46eSDavid Howells __u8 nexthdr; 65607ca46eSDavid Howells __u8 hdrlen; 66607ca46eSDavid Howells /* 67607ca46eSDavid Howells * TLV encoded option data follows. 68607ca46eSDavid Howells */ 69607ca46eSDavid Howells } __attribute__((packed)); /* required for some archs */ 70607ca46eSDavid Howells 71607ca46eSDavid Howells #define ipv6_destopt_hdr ipv6_opt_hdr 72607ca46eSDavid Howells #define ipv6_hopopt_hdr ipv6_opt_hdr 73607ca46eSDavid Howells 74dd3332bfSYOSHIFUJI Hideaki / 吉藤英明 /* Router Alert option values (RFC2711) */ 75dd3332bfSYOSHIFUJI Hideaki / 吉藤英明 #define IPV6_OPT_ROUTERALERT_MLD 0x0000 /* MLD(RFC2710) */ 76607ca46eSDavid Howells 77607ca46eSDavid Howells /* 78607ca46eSDavid Howells * routing header type 0 (used in cmsghdr struct) 79607ca46eSDavid Howells */ 80607ca46eSDavid Howells 81607ca46eSDavid Howells struct rt0_hdr { 82607ca46eSDavid Howells struct ipv6_rt_hdr rt_hdr; 83607ca46eSDavid Howells __u32 reserved; 8400168b41SGustavo A. R. Silva struct in6_addr addr[]; 85607ca46eSDavid Howells 86607ca46eSDavid Howells #define rt0_type rt_hdr.type 87607ca46eSDavid Howells }; 88607ca46eSDavid Howells 89607ca46eSDavid Howells /* 90607ca46eSDavid Howells * routing header type 2 91607ca46eSDavid Howells */ 92607ca46eSDavid Howells 93607ca46eSDavid Howells struct rt2_hdr { 94607ca46eSDavid Howells struct ipv6_rt_hdr rt_hdr; 95607ca46eSDavid Howells __u32 reserved; 96607ca46eSDavid Howells struct in6_addr addr; 97607ca46eSDavid Howells 98607ca46eSDavid Howells #define rt2_type rt_hdr.type 99607ca46eSDavid Howells }; 100607ca46eSDavid Howells 101607ca46eSDavid Howells /* 102607ca46eSDavid Howells * home address option in destination options header 103607ca46eSDavid Howells */ 104607ca46eSDavid Howells 105607ca46eSDavid Howells struct ipv6_destopt_hao { 106607ca46eSDavid Howells __u8 type; 107607ca46eSDavid Howells __u8 length; 108607ca46eSDavid Howells struct in6_addr addr; 109607ca46eSDavid Howells } __attribute__((packed)); 110607ca46eSDavid Howells 111607ca46eSDavid Howells /* 112607ca46eSDavid Howells * IPv6 fixed header 113607ca46eSDavid Howells * 114607ca46eSDavid Howells * BEWARE, it is incorrect. The first 4 bits of flow_lbl 115607ca46eSDavid Howells * are glued to priority now, forming "class". 116607ca46eSDavid Howells */ 117607ca46eSDavid Howells 118607ca46eSDavid Howells struct ipv6hdr { 119607ca46eSDavid Howells #if defined(__LITTLE_ENDIAN_BITFIELD) 120607ca46eSDavid Howells __u8 priority:4, 121607ca46eSDavid Howells version:4; 122607ca46eSDavid Howells #elif defined(__BIG_ENDIAN_BITFIELD) 123607ca46eSDavid Howells __u8 version:4, 124607ca46eSDavid Howells priority:4; 125607ca46eSDavid Howells #else 126607ca46eSDavid Howells #error "Please fix <asm/byteorder.h>" 127607ca46eSDavid Howells #endif 128607ca46eSDavid Howells __u8 flow_lbl[3]; 129607ca46eSDavid Howells 130607ca46eSDavid Howells __be16 payload_len; 131607ca46eSDavid Howells __u8 nexthdr; 132607ca46eSDavid Howells __u8 hop_limit; 133607ca46eSDavid Howells 13458e0be1eSHangbin Liu __struct_group(/* no tag */, addrs, /* no attrs */, 135607ca46eSDavid Howells struct in6_addr saddr; 136607ca46eSDavid Howells struct in6_addr daddr; 13758e0be1eSHangbin Liu ); 138607ca46eSDavid Howells }; 139607ca46eSDavid Howells 140607ca46eSDavid Howells 141607ca46eSDavid Howells /* index values for the variables in ipv6_devconf */ 142607ca46eSDavid Howells enum { 143607ca46eSDavid Howells DEVCONF_FORWARDING = 0, 144607ca46eSDavid Howells DEVCONF_HOPLIMIT, 145607ca46eSDavid Howells DEVCONF_MTU6, 146607ca46eSDavid Howells DEVCONF_ACCEPT_RA, 147607ca46eSDavid Howells DEVCONF_ACCEPT_REDIRECTS, 148607ca46eSDavid Howells DEVCONF_AUTOCONF, 149607ca46eSDavid Howells DEVCONF_DAD_TRANSMITS, 150607ca46eSDavid Howells DEVCONF_RTR_SOLICITS, 151607ca46eSDavid Howells DEVCONF_RTR_SOLICIT_INTERVAL, 152607ca46eSDavid Howells DEVCONF_RTR_SOLICIT_DELAY, 153607ca46eSDavid Howells DEVCONF_USE_TEMPADDR, 154607ca46eSDavid Howells DEVCONF_TEMP_VALID_LFT, 155607ca46eSDavid Howells DEVCONF_TEMP_PREFERED_LFT, 156607ca46eSDavid Howells DEVCONF_REGEN_MAX_RETRY, 157607ca46eSDavid Howells DEVCONF_MAX_DESYNC_FACTOR, 158607ca46eSDavid Howells DEVCONF_MAX_ADDRESSES, 159607ca46eSDavid Howells DEVCONF_FORCE_MLD_VERSION, 160607ca46eSDavid Howells DEVCONF_ACCEPT_RA_DEFRTR, 161607ca46eSDavid Howells DEVCONF_ACCEPT_RA_PINFO, 162607ca46eSDavid Howells DEVCONF_ACCEPT_RA_RTR_PREF, 163607ca46eSDavid Howells DEVCONF_RTR_PROBE_INTERVAL, 164607ca46eSDavid Howells DEVCONF_ACCEPT_RA_RT_INFO_MAX_PLEN, 165607ca46eSDavid Howells DEVCONF_PROXY_NDP, 166607ca46eSDavid Howells DEVCONF_OPTIMISTIC_DAD, 167607ca46eSDavid Howells DEVCONF_ACCEPT_SOURCE_ROUTE, 168607ca46eSDavid Howells DEVCONF_MC_FORWARDING, 169607ca46eSDavid Howells DEVCONF_DISABLE_IPV6, 170607ca46eSDavid Howells DEVCONF_ACCEPT_DAD, 171607ca46eSDavid Howells DEVCONF_FORCE_TLLAO, 1725cb04436SHannes Frederic Sowa DEVCONF_NDISC_NOTIFY, 173fc4eba58SHannes Frederic Sowa DEVCONF_MLDV1_UNSOLICITED_REPORT_INTERVAL, 174fc4eba58SHannes Frederic Sowa DEVCONF_MLDV2_UNSOLICITED_REPORT_INTERVAL, 175b800c3b9SHannes Frederic Sowa DEVCONF_SUPPRESS_FRAG_NDISC, 176d9333196SBen Greear DEVCONF_ACCEPT_RA_FROM_LOCAL, 1777fd2561eSErik Kline DEVCONF_USE_OPTIMISTIC, 178c2943f14SHarout Hedeshian DEVCONF_ACCEPT_RA_MTU, 1793d1bec99SHannes Frederic Sowa DEVCONF_STABLE_SECRET, 1803985e8a3SErik Kline DEVCONF_USE_OIF_ADDRS_ONLY, 1818013d1d7SHangbin Liu DEVCONF_ACCEPT_RA_MIN_HOP_LIMIT, 18235103d11SAndy Gospodarek DEVCONF_IGNORE_ROUTES_WITH_LINKDOWN, 183abbc3043SJohannes Berg DEVCONF_DROP_UNICAST_IN_L2_MULTICAST, 1847a02bf89SJohannes Berg DEVCONF_DROP_UNSOLICITED_NA, 185f1705ec1SDavid Ahern DEVCONF_KEEP_ADDR_ON_DOWN, 186bd11f074SMaciej Żenczykowski DEVCONF_RTR_SOLICIT_MAX_INTERVAL, 1871ababebaSDavid Lebrun DEVCONF_SEG6_ENABLED, 188bf355b8dSDavid Lebrun DEVCONF_SEG6_REQUIRE_HMAC, 189adc176c5SErik Nordmark DEVCONF_ENHANCED_DAD, 190d35a00b8SFelix Jia DEVCONF_ADDR_GEN_MODE, 191df789fe7SDavid Forster DEVCONF_DISABLE_POLICY, 192bbea124bSJoel Scherpelz DEVCONF_ACCEPT_RA_RT_INFO_MIN_PLEN, 1932210d6b2SMaciej Żenczykowski DEVCONF_NDISC_TCLASS, 1948610c7c6SAlexander Aring DEVCONF_RPL_SEG_ENABLED, 1956b2e04bcSPraveen Chaudhary DEVCONF_RA_DEFRTR_METRIC, 1969ee11f0fSJustin Iurman DEVCONF_IOAM6_ENABLED, 1979ee11f0fSJustin Iurman DEVCONF_IOAM6_ID, 1989ee11f0fSJustin Iurman DEVCONF_IOAM6_ID_WIDE, 19918ac597aSJames Prestwood DEVCONF_NDISC_EVICT_NOCARRIER, 2003e0b8f52SArun Ajith S DEVCONF_ACCEPT_UNTRACKED_NA, 201*5027d54aSPatrick Rohr DEVCONF_ACCEPT_RA_MIN_LFT, 202607ca46eSDavid Howells DEVCONF_MAX 203607ca46eSDavid Howells }; 204607ca46eSDavid Howells 205607ca46eSDavid Howells 206607ca46eSDavid Howells #endif /* _UAPI_IPV6_H */ 207