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