1#ifndef _LINUX_ICMPV6_H
2#define _LINUX_ICMPV6_H
3
4#include <asm/byteorder.h>
5
6struct icmp6hdr {
7
8	__u8		icmp6_type;
9	__u8		icmp6_code;
10	__u16		icmp6_cksum;
11
12
13	union {
14		__u32			un_data32[1];
15		__u16			un_data16[2];
16		__u8			un_data8[4];
17
18		struct icmpv6_echo {
19			__u16		identifier;
20			__u16		sequence;
21		} u_echo;
22
23                struct icmpv6_nd_advt {
24#if defined(__LITTLE_ENDIAN_BITFIELD)
25                        __u32		reserved:5,
26                        		override:1,
27                        		solicited:1,
28                        		router:1,
29					reserved2:24;
30#elif defined(__BIG_ENDIAN_BITFIELD)
31                        __u32		router:1,
32					solicited:1,
33                        		override:1,
34                        		reserved:29;
35#else
36#error	"Please fix <asm/byteorder.h>"
37#endif
38                } u_nd_advt;
39
40                struct icmpv6_nd_ra {
41			__u8		hop_limit;
42#if defined(__LITTLE_ENDIAN_BITFIELD)
43			__u8		reserved:6,
44					other:1,
45					managed:1;
46
47#elif defined(__BIG_ENDIAN_BITFIELD)
48			__u8		managed:1,
49					other:1,
50					reserved:6;
51#else
52#error	"Please fix <asm/byteorder.h>"
53#endif
54			__u16		rt_lifetime;
55                } u_nd_ra;
56
57	} icmp6_dataun;
58
59#define icmp6_identifier	icmp6_dataun.u_echo.identifier
60#define icmp6_sequence		icmp6_dataun.u_echo.sequence
61#define icmp6_pointer		icmp6_dataun.un_data32[0]
62#define icmp6_mtu		icmp6_dataun.un_data32[0]
63#define icmp6_unused		icmp6_dataun.un_data32[0]
64#define icmp6_maxdelay		icmp6_dataun.un_data16[0]
65#define icmp6_router		icmp6_dataun.u_nd_advt.router
66#define icmp6_solicited		icmp6_dataun.u_nd_advt.solicited
67#define icmp6_override		icmp6_dataun.u_nd_advt.override
68#define icmp6_ndiscreserved	icmp6_dataun.u_nd_advt.reserved
69#define icmp6_hop_limit		icmp6_dataun.u_nd_ra.hop_limit
70#define icmp6_addrconf_managed	icmp6_dataun.u_nd_ra.managed
71#define icmp6_addrconf_other	icmp6_dataun.u_nd_ra.other
72#define icmp6_rt_lifetime	icmp6_dataun.u_nd_ra.rt_lifetime
73};
74
75
76#define ICMPV6_DEST_UNREACH		1
77#define ICMPV6_PKT_TOOBIG		2
78#define ICMPV6_TIME_EXCEED		3
79#define ICMPV6_PARAMPROB		4
80
81#define ICMPV6_INFOMSG_MASK		0x80
82
83#define ICMPV6_ECHO_REQUEST		128
84#define ICMPV6_ECHO_REPLY		129
85#define ICMPV6_MGM_QUERY		130
86#define ICMPV6_MGM_REPORT       	131
87#define ICMPV6_MGM_REDUCTION    	132
88
89/*
90 *	Codes for Destination Unreachable
91 */
92#define ICMPV6_NOROUTE			0
93#define ICMPV6_ADM_PROHIBITED		1
94#define ICMPV6_NOT_NEIGHBOUR		2
95#define ICMPV6_ADDR_UNREACH		3
96#define ICMPV6_PORT_UNREACH		4
97
98/*
99 *	Codes for Time Exceeded
100 */
101#define ICMPV6_EXC_HOPLIMIT		0
102#define ICMPV6_EXC_FRAGTIME		1
103
104/*
105 *	Codes for Parameter Problem
106 */
107#define ICMPV6_HDR_FIELD		0
108#define ICMPV6_UNK_NEXTHDR		1
109#define ICMPV6_UNK_OPTION		2
110
111/*
112 *	constants for (set|get)sockopt
113 */
114
115#define ICMPV6_FILTER			1
116
117/*
118 *	ICMPV6 filter
119 */
120
121#define ICMPV6_FILTER_BLOCK		1
122#define ICMPV6_FILTER_PASS		2
123#define ICMPV6_FILTER_BLOCKOTHERS	3
124#define ICMPV6_FILTER_PASSONLY		4
125
126struct icmp6_filter {
127	__u32		data[8];
128};
129
130#ifdef __KERNEL__
131
132#include <linux/netdevice.h>
133#include <linux/skbuff.h>
134
135
136extern void				icmpv6_send(struct sk_buff *skb,
137						    int type, int code,
138						    __u32 info,
139						    struct net_device *dev);
140
141extern int				icmpv6_init(struct net_proto_family *ops);
142extern int				icmpv6_err_convert(int type, int code,
143							   int *err);
144extern void				icmpv6_cleanup(void);
145extern void				icmpv6_param_prob(struct sk_buff *skb,
146							  int code, int pos);
147#endif
148
149#endif
150