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gerrit-public.fairphone.software / platform / external / kernel-headers / 3318540b58f2d22ddaf211f3c8887785372e4e28 / . / original / uapi / linux / ipv6.h
blob: 8c2772340c3f1ced21c54d5178365dc6ab973e0f [file] [log] [blame]
Ben Cheng224b54f2013-10-15 18:26:18 -0700[diff] [blame]1#ifndef _UAPI_IPV6_H
2#define _UAPI_IPV6_H
3
Christopher Ferris12e1f282016-02-04 12:35:07 -0800[diff] [blame]4#include <linux/libc-compat.h>
Ben Cheng224b54f2013-10-15 18:26:18 -0700[diff] [blame]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
Christopher Ferris12e1f282016-02-04 12:35:07 -0800[diff] [blame]19#if __UAPI_DEF_IN6_PKTINFO
Ben Cheng224b54f2013-10-15 18:26:18 -0700[diff] [blame]20struct in6_pktinfo {
21 struct in6_addr ipi6_addr;
22 int ipi6_ifindex;
23};
Christopher Ferris12e1f282016-02-04 12:35:07 -0800[diff] [blame]24#endif
Ben Cheng224b54f2013-10-15 18:26:18 -0700[diff] [blame]25
Christopher Ferris12e1f282016-02-04 12:35:07 -0800[diff] [blame]26#if __UAPI_DEF_IP6_MTUINFO
Ben Cheng224b54f2013-10-15 18:26:18 -0700[diff] [blame]27struct ip6_mtuinfo {
28 struct sockaddr_in6 ip6m_addr;
29 __u32 ip6m_mtu;
30};
Christopher Ferris12e1f282016-02-04 12:35:07 -0800[diff] [blame]31#endif
Ben Cheng224b54f2013-10-15 18:26:18 -0700[diff] [blame]32
33struct 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 */
46struct 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
59struct 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
70/* Router Alert option values (RFC2711) */
71#define IPV6_OPT_ROUTERALERT_MLD 0x0000 /* MLD(RFC2710) */
72
73/*
74 * routing header type 0 (used in cmsghdr struct)
75 */
76
77struct 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
89struct 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
101struct 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
114struct 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 */
136enum {
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,
166 DEVCONF_NDISC_NOTIFY,
Christopher Ferrise0845012014-07-09 14:58:51 -0700[diff] [blame]167 DEVCONF_MLDV1_UNSOLICITED_REPORT_INTERVAL,
168 DEVCONF_MLDV2_UNSOLICITED_REPORT_INTERVAL,
169 DEVCONF_SUPPRESS_FRAG_NDISC,
Christopher Ferris7c0b6392015-01-23 15:34:26 -0800[diff] [blame]170 DEVCONF_ACCEPT_RA_FROM_LOCAL,
Christopher Ferris12e1f282016-02-04 12:35:07 -0800[diff] [blame]171 DEVCONF_USE_OPTIMISTIC,
172 DEVCONF_ACCEPT_RA_MTU,
173 DEVCONF_STABLE_SECRET,
174 DEVCONF_USE_OIF_ADDRS_ONLY,
175 DEVCONF_ACCEPT_RA_MIN_HOP_LIMIT,
176 DEVCONF_IGNORE_ROUTES_WITH_LINKDOWN,
Christopher Ferrisccfaccd2016-08-24 12:11:31 -0700[diff] [blame]177 DEVCONF_DROP_UNICAST_IN_L2_MULTICAST,
178 DEVCONF_DROP_UNSOLICITED_NA,
179 DEVCONF_KEEP_ADDR_ON_DOWN,
Christopher Ferris33185402017-01-13 13:28:52 -0800[diff] [blame^]180 DEVCONF_RTR_SOLICIT_MAX_INTERVAL,
Ben Cheng224b54f2013-10-15 18:26:18 -0700[diff] [blame]181 DEVCONF_MAX
182};
183
184
185#endif /* _UAPI_IPV6_H */