]>
Commit | Line | Data |
---|---|---|
6f52b16c | 1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
607ca46e DH |
2 | #ifndef _UAPI_IPV6_H |
3 | #define _UAPI_IPV6_H | |
4 | ||
c66ad9ca | 5 | #include <linux/libc-compat.h> |
607ca46e DH |
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 | ||
3b50d902 | 20 | #if __UAPI_DEF_IN6_PKTINFO |
607ca46e DH |
21 | struct in6_pktinfo { |
22 | struct in6_addr ipi6_addr; | |
23 | int ipi6_ifindex; | |
24 | }; | |
3b50d902 | 25 | #endif |
607ca46e | 26 | |
3b50d902 | 27 | #if __UAPI_DEF_IP6_MTUINFO |
607ca46e DH |
28 | struct ip6_mtuinfo { |
29 | struct sockaddr_in6 ip6m_addr; | |
30 | __u32 ip6m_mtu; | |
31 | }; | |
3b50d902 | 32 | #endif |
607ca46e DH |
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 */ | |
1ababeba | 43 | #define IPV6_SRCRT_TYPE_4 4 /* Segment Routing with IPv6 */ |
607ca46e DH |
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 | ||
dd3332bf YH |
72 | /* Router Alert option values (RFC2711) */ |
73 | #define IPV6_OPT_ROUTERALERT_MLD 0x0000 /* MLD(RFC2710) */ | |
607ca46e DH |
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, | |
5cb04436 | 168 | DEVCONF_NDISC_NOTIFY, |
fc4eba58 HFS |
169 | DEVCONF_MLDV1_UNSOLICITED_REPORT_INTERVAL, |
170 | DEVCONF_MLDV2_UNSOLICITED_REPORT_INTERVAL, | |
b800c3b9 | 171 | DEVCONF_SUPPRESS_FRAG_NDISC, |
d9333196 | 172 | DEVCONF_ACCEPT_RA_FROM_LOCAL, |
7fd2561e | 173 | DEVCONF_USE_OPTIMISTIC, |
c2943f14 | 174 | DEVCONF_ACCEPT_RA_MTU, |
3d1bec99 | 175 | DEVCONF_STABLE_SECRET, |
3985e8a3 | 176 | DEVCONF_USE_OIF_ADDRS_ONLY, |
8013d1d7 | 177 | DEVCONF_ACCEPT_RA_MIN_HOP_LIMIT, |
35103d11 | 178 | DEVCONF_IGNORE_ROUTES_WITH_LINKDOWN, |
abbc3043 | 179 | DEVCONF_DROP_UNICAST_IN_L2_MULTICAST, |
7a02bf89 | 180 | DEVCONF_DROP_UNSOLICITED_NA, |
f1705ec1 | 181 | DEVCONF_KEEP_ADDR_ON_DOWN, |
bd11f074 | 182 | DEVCONF_RTR_SOLICIT_MAX_INTERVAL, |
1ababeba | 183 | DEVCONF_SEG6_ENABLED, |
bf355b8d | 184 | DEVCONF_SEG6_REQUIRE_HMAC, |
adc176c5 | 185 | DEVCONF_ENHANCED_DAD, |
d35a00b8 | 186 | DEVCONF_ADDR_GEN_MODE, |
df789fe7 | 187 | DEVCONF_DISABLE_POLICY, |
bbea124b | 188 | DEVCONF_ACCEPT_RA_RT_INFO_MIN_PLEN, |
2210d6b2 | 189 | DEVCONF_NDISC_TCLASS, |
607ca46e DH |
190 | DEVCONF_MAX |
191 | }; | |
192 | ||
193 | ||
194 | #endif /* _UAPI_IPV6_H */ |