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607ca46e DH |
1 | #ifndef _UAPI_IPV6_H |
2 | #define _UAPI_IPV6_H | |
3 | ||
c66ad9ca | 4 | #include <linux/libc-compat.h> |
607ca46e DH |
5 | #include <linux/types.h> |
6 | #include <linux/in6.h> | |
7 | #include <asm/byteorder.h> | |
8 | ||
9 | /* The latest drafts declared increase in minimal mtu up to 1280. */ | |
10 | ||
11 | #define IPV6_MIN_MTU 1280 | |
12 | ||
13 | /* | |
14 | * Advanced API | |
15 | * source interface/address selection, source routing, etc... | |
16 | * *under construction* | |
17 | */ | |
18 | ||
3b50d902 | 19 | #if __UAPI_DEF_IN6_PKTINFO |
607ca46e DH |
20 | struct in6_pktinfo { |
21 | struct in6_addr ipi6_addr; | |
22 | int ipi6_ifindex; | |
23 | }; | |
3b50d902 | 24 | #endif |
607ca46e | 25 | |
3b50d902 | 26 | #if __UAPI_DEF_IP6_MTUINFO |
607ca46e DH |
27 | struct ip6_mtuinfo { |
28 | struct sockaddr_in6 ip6m_addr; | |
29 | __u32 ip6m_mtu; | |
30 | }; | |
3b50d902 | 31 | #endif |
607ca46e DH |
32 | |
33 | struct in6_ifreq { | |
34 | struct in6_addr ifr6_addr; | |
35 | __u32 ifr6_prefixlen; | |
36 | int ifr6_ifindex; | |
37 | }; | |
38 | ||
39 | #define IPV6_SRCRT_STRICT 0x01 /* Deprecated; will be removed */ | |
40 | #define IPV6_SRCRT_TYPE_0 0 /* Deprecated; will be removed */ | |
41 | #define IPV6_SRCRT_TYPE_2 2 /* IPv6 type 2 Routing Header */ | |
42 | ||
43 | /* | |
44 | * routing header | |
45 | */ | |
46 | struct ipv6_rt_hdr { | |
47 | __u8 nexthdr; | |
48 | __u8 hdrlen; | |
49 | __u8 type; | |
50 | __u8 segments_left; | |
51 | ||
52 | /* | |
53 | * type specific data | |
54 | * variable length field | |
55 | */ | |
56 | }; | |
57 | ||
58 | ||
59 | struct ipv6_opt_hdr { | |
60 | __u8 nexthdr; | |
61 | __u8 hdrlen; | |
62 | /* | |
63 | * TLV encoded option data follows. | |
64 | */ | |
65 | } __attribute__((packed)); /* required for some archs */ | |
66 | ||
67 | #define ipv6_destopt_hdr ipv6_opt_hdr | |
68 | #define ipv6_hopopt_hdr ipv6_opt_hdr | |
69 | ||
dd3332bf YH |
70 | /* Router Alert option values (RFC2711) */ |
71 | #define IPV6_OPT_ROUTERALERT_MLD 0x0000 /* MLD(RFC2710) */ | |
607ca46e DH |
72 | |
73 | /* | |
74 | * routing header type 0 (used in cmsghdr struct) | |
75 | */ | |
76 | ||
77 | struct rt0_hdr { | |
78 | struct ipv6_rt_hdr rt_hdr; | |
79 | __u32 reserved; | |
80 | struct in6_addr addr[0]; | |
81 | ||
82 | #define rt0_type rt_hdr.type | |
83 | }; | |
84 | ||
85 | /* | |
86 | * routing header type 2 | |
87 | */ | |
88 | ||
89 | struct rt2_hdr { | |
90 | struct ipv6_rt_hdr rt_hdr; | |
91 | __u32 reserved; | |
92 | struct in6_addr addr; | |
93 | ||
94 | #define rt2_type rt_hdr.type | |
95 | }; | |
96 | ||
97 | /* | |
98 | * home address option in destination options header | |
99 | */ | |
100 | ||
101 | struct ipv6_destopt_hao { | |
102 | __u8 type; | |
103 | __u8 length; | |
104 | struct in6_addr addr; | |
105 | } __attribute__((packed)); | |
106 | ||
107 | /* | |
108 | * IPv6 fixed header | |
109 | * | |
110 | * BEWARE, it is incorrect. The first 4 bits of flow_lbl | |
111 | * are glued to priority now, forming "class". | |
112 | */ | |
113 | ||
114 | struct ipv6hdr { | |
115 | #if defined(__LITTLE_ENDIAN_BITFIELD) | |
116 | __u8 priority:4, | |
117 | version:4; | |
118 | #elif defined(__BIG_ENDIAN_BITFIELD) | |
119 | __u8 version:4, | |
120 | priority:4; | |
121 | #else | |
122 | #error "Please fix <asm/byteorder.h>" | |
123 | #endif | |
124 | __u8 flow_lbl[3]; | |
125 | ||
126 | __be16 payload_len; | |
127 | __u8 nexthdr; | |
128 | __u8 hop_limit; | |
129 | ||
130 | struct in6_addr saddr; | |
131 | struct in6_addr daddr; | |
132 | }; | |
133 | ||
134 | ||
135 | /* index values for the variables in ipv6_devconf */ | |
136 | enum { | |
137 | DEVCONF_FORWARDING = 0, | |
138 | DEVCONF_HOPLIMIT, | |
139 | DEVCONF_MTU6, | |
140 | DEVCONF_ACCEPT_RA, | |
141 | DEVCONF_ACCEPT_REDIRECTS, | |
142 | DEVCONF_AUTOCONF, | |
143 | DEVCONF_DAD_TRANSMITS, | |
144 | DEVCONF_RTR_SOLICITS, | |
145 | DEVCONF_RTR_SOLICIT_INTERVAL, | |
146 | DEVCONF_RTR_SOLICIT_DELAY, | |
147 | DEVCONF_USE_TEMPADDR, | |
148 | DEVCONF_TEMP_VALID_LFT, | |
149 | DEVCONF_TEMP_PREFERED_LFT, | |
150 | DEVCONF_REGEN_MAX_RETRY, | |
151 | DEVCONF_MAX_DESYNC_FACTOR, | |
152 | DEVCONF_MAX_ADDRESSES, | |
153 | DEVCONF_FORCE_MLD_VERSION, | |
154 | DEVCONF_ACCEPT_RA_DEFRTR, | |
155 | DEVCONF_ACCEPT_RA_PINFO, | |
156 | DEVCONF_ACCEPT_RA_RTR_PREF, | |
157 | DEVCONF_RTR_PROBE_INTERVAL, | |
158 | DEVCONF_ACCEPT_RA_RT_INFO_MAX_PLEN, | |
159 | DEVCONF_PROXY_NDP, | |
160 | DEVCONF_OPTIMISTIC_DAD, | |
161 | DEVCONF_ACCEPT_SOURCE_ROUTE, | |
162 | DEVCONF_MC_FORWARDING, | |
163 | DEVCONF_DISABLE_IPV6, | |
164 | DEVCONF_ACCEPT_DAD, | |
165 | DEVCONF_FORCE_TLLAO, | |
5cb04436 | 166 | DEVCONF_NDISC_NOTIFY, |
fc4eba58 HFS |
167 | DEVCONF_MLDV1_UNSOLICITED_REPORT_INTERVAL, |
168 | DEVCONF_MLDV2_UNSOLICITED_REPORT_INTERVAL, | |
b800c3b9 | 169 | DEVCONF_SUPPRESS_FRAG_NDISC, |
d9333196 | 170 | DEVCONF_ACCEPT_RA_FROM_LOCAL, |
7fd2561e | 171 | DEVCONF_USE_OPTIMISTIC, |
c2943f14 | 172 | DEVCONF_ACCEPT_RA_MTU, |
607ca46e DH |
173 | DEVCONF_MAX |
174 | }; | |
175 | ||
176 | ||
177 | #endif /* _UAPI_IPV6_H */ |