Christopher Ferris | 2598113 | 2017-11-14 16:53:49 -0800 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 2 | #ifndef _UAPI_IPV6_H |
| 3 | #define _UAPI_IPV6_H |
| 4 | |
Christopher Ferris | 12e1f28 | 2016-02-04 12:35:07 -0800 | [diff] [blame] | 5 | #include <linux/libc-compat.h> |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 6 | #include <linux/types.h> |
| 7 | #include <linux/in6.h> |
| 8 | #include <asm/byteorder.h> |
| 9 | |
| 10 | /* The latest drafts declared increase in minimal mtu up to 1280. */ |
| 11 | |
| 12 | #define IPV6_MIN_MTU 1280 |
| 13 | |
| 14 | /* |
| 15 | * Advanced API |
| 16 | * source interface/address selection, source routing, etc... |
| 17 | * *under construction* |
| 18 | */ |
| 19 | |
Christopher Ferris | 12e1f28 | 2016-02-04 12:35:07 -0800 | [diff] [blame] | 20 | #if __UAPI_DEF_IN6_PKTINFO |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 21 | struct in6_pktinfo { |
| 22 | struct in6_addr ipi6_addr; |
| 23 | int ipi6_ifindex; |
| 24 | }; |
Christopher Ferris | 12e1f28 | 2016-02-04 12:35:07 -0800 | [diff] [blame] | 25 | #endif |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 26 | |
Christopher Ferris | 12e1f28 | 2016-02-04 12:35:07 -0800 | [diff] [blame] | 27 | #if __UAPI_DEF_IP6_MTUINFO |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 28 | struct ip6_mtuinfo { |
| 29 | struct sockaddr_in6 ip6m_addr; |
| 30 | __u32 ip6m_mtu; |
| 31 | }; |
Christopher Ferris | 12e1f28 | 2016-02-04 12:35:07 -0800 | [diff] [blame] | 32 | #endif |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 33 | |
| 34 | struct in6_ifreq { |
| 35 | struct in6_addr ifr6_addr; |
| 36 | __u32 ifr6_prefixlen; |
| 37 | int ifr6_ifindex; |
| 38 | }; |
| 39 | |
| 40 | #define IPV6_SRCRT_STRICT 0x01 /* Deprecated; will be removed */ |
| 41 | #define IPV6_SRCRT_TYPE_0 0 /* Deprecated; will be removed */ |
| 42 | #define IPV6_SRCRT_TYPE_2 2 /* IPv6 type 2 Routing Header */ |
Christopher Ferris | 2fd4b3c | 2017-02-21 12:32:08 -0800 | [diff] [blame] | 43 | #define IPV6_SRCRT_TYPE_4 4 /* Segment Routing with IPv6 */ |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 44 | |
| 45 | /* |
| 46 | * routing header |
| 47 | */ |
| 48 | struct ipv6_rt_hdr { |
| 49 | __u8 nexthdr; |
| 50 | __u8 hdrlen; |
| 51 | __u8 type; |
| 52 | __u8 segments_left; |
| 53 | |
| 54 | /* |
| 55 | * type specific data |
| 56 | * variable length field |
| 57 | */ |
| 58 | }; |
| 59 | |
| 60 | |
| 61 | struct ipv6_opt_hdr { |
| 62 | __u8 nexthdr; |
| 63 | __u8 hdrlen; |
| 64 | /* |
| 65 | * TLV encoded option data follows. |
| 66 | */ |
| 67 | } __attribute__((packed)); /* required for some archs */ |
| 68 | |
| 69 | #define ipv6_destopt_hdr ipv6_opt_hdr |
| 70 | #define ipv6_hopopt_hdr ipv6_opt_hdr |
| 71 | |
| 72 | /* Router Alert option values (RFC2711) */ |
| 73 | #define IPV6_OPT_ROUTERALERT_MLD 0x0000 /* MLD(RFC2710) */ |
| 74 | |
| 75 | /* |
| 76 | * routing header type 0 (used in cmsghdr struct) |
| 77 | */ |
| 78 | |
| 79 | struct rt0_hdr { |
| 80 | struct ipv6_rt_hdr rt_hdr; |
| 81 | __u32 reserved; |
| 82 | struct in6_addr addr[0]; |
| 83 | |
| 84 | #define rt0_type rt_hdr.type |
| 85 | }; |
| 86 | |
| 87 | /* |
| 88 | * routing header type 2 |
| 89 | */ |
| 90 | |
| 91 | struct rt2_hdr { |
| 92 | struct ipv6_rt_hdr rt_hdr; |
| 93 | __u32 reserved; |
| 94 | struct in6_addr addr; |
| 95 | |
| 96 | #define rt2_type rt_hdr.type |
| 97 | }; |
| 98 | |
| 99 | /* |
| 100 | * home address option in destination options header |
| 101 | */ |
| 102 | |
| 103 | struct ipv6_destopt_hao { |
| 104 | __u8 type; |
| 105 | __u8 length; |
| 106 | struct in6_addr addr; |
| 107 | } __attribute__((packed)); |
| 108 | |
| 109 | /* |
| 110 | * IPv6 fixed header |
| 111 | * |
| 112 | * BEWARE, it is incorrect. The first 4 bits of flow_lbl |
| 113 | * are glued to priority now, forming "class". |
| 114 | */ |
| 115 | |
| 116 | struct ipv6hdr { |
| 117 | #if defined(__LITTLE_ENDIAN_BITFIELD) |
| 118 | __u8 priority:4, |
| 119 | version:4; |
| 120 | #elif defined(__BIG_ENDIAN_BITFIELD) |
| 121 | __u8 version:4, |
| 122 | priority:4; |
| 123 | #else |
| 124 | #error "Please fix <asm/byteorder.h>" |
| 125 | #endif |
| 126 | __u8 flow_lbl[3]; |
| 127 | |
| 128 | __be16 payload_len; |
| 129 | __u8 nexthdr; |
| 130 | __u8 hop_limit; |
| 131 | |
| 132 | struct in6_addr saddr; |
| 133 | struct in6_addr daddr; |
| 134 | }; |
| 135 | |
| 136 | |
| 137 | /* index values for the variables in ipv6_devconf */ |
| 138 | enum { |
| 139 | DEVCONF_FORWARDING = 0, |
| 140 | DEVCONF_HOPLIMIT, |
| 141 | DEVCONF_MTU6, |
| 142 | DEVCONF_ACCEPT_RA, |
| 143 | DEVCONF_ACCEPT_REDIRECTS, |
| 144 | DEVCONF_AUTOCONF, |
| 145 | DEVCONF_DAD_TRANSMITS, |
| 146 | DEVCONF_RTR_SOLICITS, |
| 147 | DEVCONF_RTR_SOLICIT_INTERVAL, |
| 148 | DEVCONF_RTR_SOLICIT_DELAY, |
| 149 | DEVCONF_USE_TEMPADDR, |
| 150 | DEVCONF_TEMP_VALID_LFT, |
| 151 | DEVCONF_TEMP_PREFERED_LFT, |
| 152 | DEVCONF_REGEN_MAX_RETRY, |
| 153 | DEVCONF_MAX_DESYNC_FACTOR, |
| 154 | DEVCONF_MAX_ADDRESSES, |
| 155 | DEVCONF_FORCE_MLD_VERSION, |
| 156 | DEVCONF_ACCEPT_RA_DEFRTR, |
| 157 | DEVCONF_ACCEPT_RA_PINFO, |
| 158 | DEVCONF_ACCEPT_RA_RTR_PREF, |
| 159 | DEVCONF_RTR_PROBE_INTERVAL, |
| 160 | DEVCONF_ACCEPT_RA_RT_INFO_MAX_PLEN, |
| 161 | DEVCONF_PROXY_NDP, |
| 162 | DEVCONF_OPTIMISTIC_DAD, |
| 163 | DEVCONF_ACCEPT_SOURCE_ROUTE, |
| 164 | DEVCONF_MC_FORWARDING, |
| 165 | DEVCONF_DISABLE_IPV6, |
| 166 | DEVCONF_ACCEPT_DAD, |
| 167 | DEVCONF_FORCE_TLLAO, |
| 168 | DEVCONF_NDISC_NOTIFY, |
Christopher Ferris | e084501 | 2014-07-09 14:58:51 -0700 | [diff] [blame] | 169 | DEVCONF_MLDV1_UNSOLICITED_REPORT_INTERVAL, |
| 170 | DEVCONF_MLDV2_UNSOLICITED_REPORT_INTERVAL, |
| 171 | DEVCONF_SUPPRESS_FRAG_NDISC, |
Christopher Ferris | 7c0b639 | 2015-01-23 15:34:26 -0800 | [diff] [blame] | 172 | DEVCONF_ACCEPT_RA_FROM_LOCAL, |
Christopher Ferris | 12e1f28 | 2016-02-04 12:35:07 -0800 | [diff] [blame] | 173 | DEVCONF_USE_OPTIMISTIC, |
| 174 | DEVCONF_ACCEPT_RA_MTU, |
| 175 | DEVCONF_STABLE_SECRET, |
| 176 | DEVCONF_USE_OIF_ADDRS_ONLY, |
| 177 | DEVCONF_ACCEPT_RA_MIN_HOP_LIMIT, |
| 178 | DEVCONF_IGNORE_ROUTES_WITH_LINKDOWN, |
Christopher Ferris | ccfaccd | 2016-08-24 12:11:31 -0700 | [diff] [blame] | 179 | DEVCONF_DROP_UNICAST_IN_L2_MULTICAST, |
| 180 | DEVCONF_DROP_UNSOLICITED_NA, |
| 181 | DEVCONF_KEEP_ADDR_ON_DOWN, |
Christopher Ferris | 3318540 | 2017-01-13 13:28:52 -0800 | [diff] [blame] | 182 | DEVCONF_RTR_SOLICIT_MAX_INTERVAL, |
Christopher Ferris | 2fd4b3c | 2017-02-21 12:32:08 -0800 | [diff] [blame] | 183 | DEVCONF_SEG6_ENABLED, |
| 184 | DEVCONF_SEG6_REQUIRE_HMAC, |
| 185 | DEVCONF_ENHANCED_DAD, |
Christopher Ferris | 0543f74 | 2017-07-26 13:09:46 -0700 | [diff] [blame] | 186 | DEVCONF_ADDR_GEN_MODE, |
| 187 | DEVCONF_DISABLE_POLICY, |
| 188 | DEVCONF_ACCEPT_RA_RT_INFO_MIN_PLEN, |
Christopher Ferris | a1a109e | 2018-01-31 15:03:12 -0800 | [diff] [blame^] | 189 | DEVCONF_NDISC_TCLASS, |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 190 | DEVCONF_MAX |
| 191 | }; |
| 192 | |
| 193 | |
| 194 | #endif /* _UAPI_IPV6_H */ |