aboutsummaryrefslogtreecommitdiff
path: root/lib/mlibc/options/posix/include/netinet/icmp6.h
blob: 7dfe237c35e2f27493ead1401b7d4ed9db01da18 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
#ifndef _NETINET_ICMP6_H
#define _NETINET_ICMP6_H

#ifdef __cplusplus
extern "C" {
#endif

#include <stdint.h>
#include <abi-bits/in.h>
#include <mlibc-config.h>

#if __MLIBC_GLIBC_OPTION
#include <bits/glibc/glibc_icmp6.h>
#endif // __MLIBC_GLIBC_OPTION

#define ICMP6_FILTER 1

#define ICMP6_FILTER_BLOCK 1
#define ICMP6_FILTER_PASS 2
#define ICMP6_FILTER_BLOCKOTHERS 3
#define ICMP6_FILTER_PASSONLY 4
#define ICMP6_ECHO_REQUEST 128

struct icmp6_filter {
	uint32_t icmp6_filt[8];
};

struct icmp6_hdr {
	uint8_t icmp6_type;
	uint8_t icmp6_code;
	uint16_t icmp6_cksum;
	union {
		uint32_t icmp6_un_data32[1];
		uint16_t icmp6_un_data16[2];
		uint8_t icmp6_un_data8[4];
	} icmp6_dataun;
};

#define icmp6_data32 icmp6_dataun.icmp6_un_data32
#define icmp6_data16 icmp6_dataun.icmp6_un_data16
#define icmp6_data8 icmp6_dataun.icmp6_un_data8

#define icmp6_pptr icmp6_data32[0]
#define icmp6_mtu icmp6_data32[0]
#define icmp6_id icmp6_data16[0]
#define icmp6_seq icmp6_data16[1]
#define icmp6_maxdelay icmp6_data16[0]

#define ICMP6_FILTER_WILLPASS(type, filterp) \
	((((filterp)->icmp6_filt[(type) >> 5]) & (1U << ((type) & 31))) == 0)

#define ICMP6_FILTER_WILLBLOCK(type, filterp) \
	((((filterp)->icmp6_filt[(type) >> 5]) & (1U << ((type) & 31))) != 0)

#define ICMP6_FILTER_SETPASS(type, filterp) \
	((((filterp)->icmp6_filt[(type) >> 5]) &= ~(1U << ((type) & 31))))

#define ICMP6_FILTER_SETBLOCK(type, filterp) \
	((((filterp)->icmp6_filt[(type) >> 5]) |=  (1U << ((type) & 31))))

#define ICMP6_FILTER_SETPASSALL(filterp) \
	memset (filterp, 0, sizeof (struct icmp6_filter));

#define ICMP6_FILTER_SETBLOCKALL(filterp) \
	memset (filterp, 0xFF, sizeof (struct icmp6_filter));

#define ND_ROUTER_SOLICIT 133
#define ND_ROUTER_ADVERT 134
#define ND_NEIGHBOR_SOLICIT 135
#define ND_NEIGHBOR_ADVERT 136
#define ND_REDIRECT 137

struct nd_router_solicit {
	struct icmp6_hdr nd_rs_hdr;
};

#define nd_rs_type nd_rs_hdr.icmp6_type
#define nd_rs_code nd_rs_hdr.icmp6_code
#define nd_rs_cksum nd_rs_hdr.icmp6_cksum
#define nd_rs_reserved nd_rs_hdr.icmp6_data32[0]

struct nd_router_advert {
	struct icmp6_hdr nd_ra_hdr;
	uint32_t nd_ra_reachable;
	uint32_t nd_ra_retransmit;
};

struct nd_opt_hdr {
	uint8_t nd_opt_type;
	uint8_t nd_opt_len;
};

#define ND_OPT_SOURCE_LINKADDR 1
#define ND_OPT_TARGET_LINKADDR 2
#define ND_OPT_PREFIX_INFORMATION 3
#define ND_OPT_REDIRECTED_HEADER 4
#define ND_OPT_MTU 5
#define ND_OPT_RTR_ADV_INTERVAL 7
#define ND_OPT_HOME_AGENT_INFO 8

struct nd_opt_prefix_info {
	uint8_t nd_opt_pi_type;
	uint8_t nd_opt_pi_len;
	uint8_t nd_opt_pi_prefix_len;
	uint8_t nd_opt_pi_flags_reserved;
	uint32_t nd_opt_pi_valid_time;
	uint32_t nd_opt_pi_preferred_time;
	uint32_t nd_opt_pi_reserved2;
	struct in6_addr nd_opt_pi_prefix;
};

#define ND_OPT_PI_FLAG_RADDR 0x20
#define ND_OPT_PI_FLAG_AUTO 0x40
#define ND_OPT_PI_FLAG_ONLINK 0x80

#define nd_ra_type nd_ra_hdr.icmp6_type
#define nd_ra_code nd_ra_hdr.icmp6_code
#define nd_ra_cksum nd_ra_hdr.icmp6_cksum
#define nd_ra_curhoplimit nd_ra_hdr.icmp6_data8[0]
#define nd_ra_flags_reserved nd_ra_hdr.icmp6_data8[1]
#define nd_ra_router_lifetime nd_ra_hdr.icmp6_data16[1]

#define ND_RA_FLAG_HOME_AGENT 0x20
#define ND_RA_FLAG_OTHER 0x40
#define ND_RA_FLAG_MANAGED 0x80

struct nd_opt_mtu {
	uint8_t nd_opt_mtu_type;
	uint8_t nd_opt_mtu_len;
	uint16_t nd_opt_mtu_reserved;
	uint32_t nd_opt_mtu_mtu;
};

#ifdef __cplusplus
}
#endif

#endif // _NETINET_ICMP6_H