summaryrefslogtreecommitdiff
path: root/include/netinet/ip_icmp.h
blob: 2f4a86ddd4cf2c53c6fe111c30946f62083d5075 (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
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
#ifndef _NETINET_IP_ICMP_H
#define _NETINET_IP_ICMP_H

#include <stdint.h>
#include <netinet/in.h>
#include <netinet/ip.h>

#ifdef __cplusplus
extern "C" {
#endif

struct icmphdr {
	uint8_t type;
	uint8_t code;
	uint16_t checksum;
	union {
		struct {
			uint16_t id;
			uint16_t sequence;
		} echo;
		uint32_t gateway;
		struct {
			uint16_t __unused;
			uint16_t mtu;
		} frag;
	} un;
};

#define ICMP_ECHOREPLY		0
#define ICMP_DEST_UNREACH	3
#define ICMP_SOURCE_QUENCH	4
#define ICMP_REDIRECT		5
#define ICMP_ECHO		8
#define ICMP_TIME_EXCEEDED	11
#define ICMP_PARAMETERPROB	12
#define ICMP_TIMESTAMP		13
#define ICMP_TIMESTAMPREPLY	14
#define ICMP_INFO_REQUEST	15
#define ICMP_INFO_REPLY		16
#define ICMP_ADDRESS		17
#define ICMP_ADDRESSREPLY	18
#define NR_ICMP_TYPES		18


#define ICMP_NET_UNREACH	0
#define ICMP_HOST_UNREACH	1
#define ICMP_PROT_UNREACH	2
#define ICMP_PORT_UNREACH	3
#define ICMP_FRAG_NEEDED	4
#define ICMP_SR_FAILED		5
#define ICMP_NET_UNKNOWN	6
#define ICMP_HOST_UNKNOWN	7
#define ICMP_HOST_ISOLATED	8
#define ICMP_NET_ANO		9
#define ICMP_HOST_ANO		10
#define ICMP_NET_UNR_TOS	11
#define ICMP_HOST_UNR_TOS	12
#define ICMP_PKT_FILTERED	13
#define ICMP_PREC_VIOLATION	14
#define ICMP_PREC_CUTOFF	15
#define NR_ICMP_UNREACH		15

#define ICMP_REDIR_NET		0
#define ICMP_REDIR_HOST		1
#define ICMP_REDIR_NETTOS	2
#define ICMP_REDIR_HOSTTOS	3

#define ICMP_EXC_TTL		0
#define ICMP_EXC_FRAGTIME	1


struct icmp_ra_addr {
	uint32_t ira_addr;
	uint32_t ira_preference;
};

struct icmp {
	uint8_t  icmp_type;
	uint8_t  icmp_code;
	uint16_t icmp_cksum;
	union {
		uint8_t ih_pptr;
		struct in_addr ih_gwaddr;
		struct ih_idseq {
			uint16_t icd_id;
			uint16_t icd_seq;
		} ih_idseq;
		uint32_t ih_void;

		struct ih_pmtu {
			uint16_t ipm_void;
			uint16_t ipm_nextmtu;
		} ih_pmtu;

		struct ih_rtradv {
			uint8_t irt_num_addrs;
			uint8_t irt_wpa;
			uint16_t irt_lifetime;
		} ih_rtradv;
	} icmp_hun;
	union {
		struct {
			uint32_t its_otime;
			uint32_t its_rtime;
			uint32_t its_ttime;
		} id_ts;
		struct {
			struct ip idi_ip;
		} id_ip;
		struct icmp_ra_addr id_radv;
		uint32_t   id_mask;
		uint8_t    id_data[1];
	} icmp_dun;
};

#define	icmp_pptr	icmp_hun.ih_pptr
#define	icmp_gwaddr	icmp_hun.ih_gwaddr
#define	icmp_id		icmp_hun.ih_idseq.icd_id
#define	icmp_seq	icmp_hun.ih_idseq.icd_seq
#define	icmp_void	icmp_hun.ih_void
#define	icmp_pmvoid	icmp_hun.ih_pmtu.ipm_void
#define	icmp_nextmtu	icmp_hun.ih_pmtu.ipm_nextmtu
#define	icmp_num_addrs	icmp_hun.ih_rtradv.irt_num_addrs
#define	icmp_wpa	icmp_hun.ih_rtradv.irt_wpa
#define	icmp_lifetime	icmp_hun.ih_rtradv.irt_lifetime
#define	icmp_otime	icmp_dun.id_ts.its_otime
#define	icmp_rtime	icmp_dun.id_ts.its_rtime
#define	icmp_ttime	icmp_dun.id_ts.its_ttime
#define	icmp_ip		icmp_dun.id_ip.idi_ip
#define	icmp_radv	icmp_dun.id_radv
#define	icmp_mask	icmp_dun.id_mask
#define	icmp_data	icmp_dun.id_data

#define	ICMP_MINLEN	8
#define	ICMP_TSLEN	(8 + 3 * sizeof (n_time))
#define	ICMP_MASKLEN	12
#define	ICMP_ADVLENMIN	(8 + sizeof (struct ip) + 8)
#define	ICMP_ADVLEN(p)	(8 + ((p)->icmp_ip.ip_hl << 2) + 8)

#define	ICMP_UNREACH		3
#define	ICMP_SOURCEQUENCH	4
#define	ICMP_ROUTERADVERT	9
#define	ICMP_ROUTERSOLICIT	10
#define	ICMP_TIMXCEED		11
#define	ICMP_PARAMPROB		12
#define	ICMP_TSTAMP		13
#define	ICMP_TSTAMPREPLY	14
#define	ICMP_IREQ		15
#define	ICMP_IREQREPLY		16
#define	ICMP_MASKREQ		17
#define	ICMP_MASKREPLY		18
#define	ICMP_MAXTYPE		18

#define	ICMP_UNREACH_NET	        0
#define	ICMP_UNREACH_HOST	        1
#define	ICMP_UNREACH_PROTOCOL	        2
#define	ICMP_UNREACH_PORT	        3
#define	ICMP_UNREACH_NEEDFRAG	        4
#define	ICMP_UNREACH_SRCFAIL	        5
#define	ICMP_UNREACH_NET_UNKNOWN        6
#define	ICMP_UNREACH_HOST_UNKNOWN       7
#define	ICMP_UNREACH_ISOLATED	        8
#define	ICMP_UNREACH_NET_PROHIB	        9
#define	ICMP_UNREACH_HOST_PROHIB        10
#define	ICMP_UNREACH_TOSNET	        11
#define	ICMP_UNREACH_TOSHOST	        12
#define	ICMP_UNREACH_FILTER_PROHIB      13
#define	ICMP_UNREACH_HOST_PRECEDENCE    14
#define	ICMP_UNREACH_PRECEDENCE_CUTOFF  15

#define	ICMP_REDIRECT_NET	0
#define	ICMP_REDIRECT_HOST	1
#define	ICMP_REDIRECT_TOSNET	2
#define	ICMP_REDIRECT_TOSHOST	3

#define	ICMP_TIMXCEED_INTRANS	0
#define	ICMP_TIMXCEED_REASS	1

#define	ICMP_PARAMPROB_OPTABSENT 1

#define	ICMP_INFOTYPE(type) \
	((type) == ICMP_ECHOREPLY || (type) == ICMP_ECHO || \
	(type) == ICMP_ROUTERADVERT || (type) == ICMP_ROUTERSOLICIT || \
	(type) == ICMP_TSTAMP || (type) == ICMP_TSTAMPREPLY || \
	(type) == ICMP_IREQ || (type) == ICMP_IREQREPLY || \
	(type) == ICMP_MASKREQ || (type) == ICMP_MASKREPLY)

#ifdef __cplusplus
}
#endif

#endif