tests: virtio-9p: add version operation test
[qemu.git] / slirp / ip6_icmp.h
1 /*
2 * Copyright (c) 2013
3 * Guillaume Subiron, Yann Bordenave, Serigne Modou Wagne.
4 */
5
6 #ifndef SLIRP_IP6_ICMP_H
7 #define SLIRP_IP6_ICMP_H
8
9 /*
10 * Interface Control Message Protocol version 6 Definitions.
11 * Per RFC 4443, March 2006.
12 *
13 * Network Discover Protocol Definitions.
14 * Per RFC 4861, September 2007.
15 */
16
17 struct icmp6_echo { /* Echo Messages */
18 uint16_t id;
19 uint16_t seq_num;
20 };
21
22 union icmp6_error_body {
23 uint32_t unused;
24 uint32_t pointer;
25 uint32_t mtu;
26 };
27
28 /*
29 * NDP Messages
30 */
31 struct ndp_rs { /* Router Solicitation Message */
32 uint32_t reserved;
33 };
34
35 struct ndp_ra { /* Router Advertisement Message */
36 uint8_t chl; /* Cur Hop Limit */
37 #ifdef HOST_WORDS_BIGENDIAN
38 uint8_t
39 M:1,
40 O:1,
41 reserved:6;
42 #else
43 uint8_t
44 reserved:6,
45 O:1,
46 M:1;
47 #endif
48 uint16_t lifetime; /* Router Lifetime */
49 uint32_t reach_time; /* Reachable Time */
50 uint32_t retrans_time; /* Retrans Timer */
51 } QEMU_PACKED;
52
53 struct ndp_ns { /* Neighbor Solicitation Message */
54 uint32_t reserved;
55 struct in6_addr target; /* Target Address */
56 } QEMU_PACKED;
57
58 struct ndp_na { /* Neighbor Advertisement Message */
59 #ifdef HOST_WORDS_BIGENDIAN
60 uint32_t
61 R:1, /* Router Flag */
62 S:1, /* Solicited Flag */
63 O:1, /* Override Flag */
64 reserved_hi:5,
65 reserved_lo:24;
66 #else
67 uint32_t
68 reserved_hi:5,
69 O:1,
70 S:1,
71 R:1,
72 reserved_lo:24;
73 #endif
74 struct in6_addr target; /* Target Address */
75 } QEMU_PACKED;
76
77 struct ndp_redirect {
78 uint32_t reserved;
79 struct in6_addr target; /* Target Address */
80 struct in6_addr dest; /* Destination Address */
81 } QEMU_PACKED;
82
83 /*
84 * Structure of an icmpv6 header.
85 */
86 struct icmp6 {
87 uint8_t icmp6_type; /* type of message, see below */
88 uint8_t icmp6_code; /* type sub code */
89 uint16_t icmp6_cksum; /* ones complement cksum of struct */
90 union {
91 union icmp6_error_body error_body;
92 struct icmp6_echo echo;
93 struct ndp_rs ndp_rs;
94 struct ndp_ra ndp_ra;
95 struct ndp_ns ndp_ns;
96 struct ndp_na ndp_na;
97 struct ndp_redirect ndp_redirect;
98 } icmp6_body;
99 #define icmp6_err icmp6_body.error_body
100 #define icmp6_echo icmp6_body.echo
101 #define icmp6_nrs icmp6_body.ndp_rs
102 #define icmp6_nra icmp6_body.ndp_ra
103 #define icmp6_nns icmp6_body.ndp_ns
104 #define icmp6_nna icmp6_body.ndp_na
105 #define icmp6_redirect icmp6_body.ndp_redirect
106 } QEMU_PACKED;
107
108 #define ICMP6_MINLEN 4
109 #define ICMP6_ERROR_MINLEN 8
110 #define ICMP6_ECHO_MINLEN 8
111 #define ICMP6_NDP_RS_MINLEN 8
112 #define ICMP6_NDP_RA_MINLEN 16
113 #define ICMP6_NDP_NS_MINLEN 24
114 #define ICMP6_NDP_NA_MINLEN 24
115 #define ICMP6_NDP_REDIRECT_MINLEN 40
116
117 /*
118 * NDP Options
119 */
120 struct ndpopt {
121 uint8_t ndpopt_type; /* Option type */
122 uint8_t ndpopt_len; /* /!\ In units of 8 octets */
123 union {
124 unsigned char linklayer_addr[6]; /* Source/Target Link-layer */
125 #define ndpopt_linklayer ndpopt_body.linklayer_addr
126 struct prefixinfo { /* Prefix Information */
127 uint8_t prefix_length;
128 #ifdef HOST_WORDS_BIGENDIAN
129 uint8_t L:1, A:1, reserved1:6;
130 #else
131 uint8_t reserved1:6, A:1, L:1;
132 #endif
133 uint32_t valid_lt; /* Valid Lifetime */
134 uint32_t pref_lt; /* Preferred Lifetime */
135 uint32_t reserved2;
136 struct in6_addr prefix;
137 } QEMU_PACKED prefixinfo;
138 #define ndpopt_prefixinfo ndpopt_body.prefixinfo
139 struct rdnss {
140 uint16_t reserved;
141 uint32_t lifetime;
142 struct in6_addr addr;
143 } QEMU_PACKED rdnss;
144 #define ndpopt_rdnss ndpopt_body.rdnss
145 } ndpopt_body;
146 } QEMU_PACKED;
147
148 /* NDP options type */
149 #define NDPOPT_LINKLAYER_SOURCE 1 /* Source Link-Layer Address */
150 #define NDPOPT_LINKLAYER_TARGET 2 /* Target Link-Layer Address */
151 #define NDPOPT_PREFIX_INFO 3 /* Prefix Information */
152 #define NDPOPT_RDNSS 25 /* Recursive DNS Server Address */
153
154 /* NDP options size, in octets. */
155 #define NDPOPT_LINKLAYER_LEN 8
156 #define NDPOPT_PREFIXINFO_LEN 32
157 #define NDPOPT_RDNSS_LEN 24
158
159 /*
160 * Definition of type and code field values.
161 * Per https://www.iana.org/assignments/icmpv6-parameters/icmpv6-parameters.xml
162 * Last Updated 2012-11-12
163 */
164
165 /* Errors */
166 #define ICMP6_UNREACH 1 /* Destination Unreachable */
167 #define ICMP6_UNREACH_NO_ROUTE 0 /* no route to dest */
168 #define ICMP6_UNREACH_DEST_PROHIB 1 /* com with dest prohibited */
169 #define ICMP6_UNREACH_SCOPE 2 /* beyond scope of src addr */
170 #define ICMP6_UNREACH_ADDRESS 3 /* address unreachable */
171 #define ICMP6_UNREACH_PORT 4 /* port unreachable */
172 #define ICMP6_UNREACH_SRC_FAIL 5 /* src addr failed */
173 #define ICMP6_UNREACH_REJECT_ROUTE 6 /* reject route to dest */
174 #define ICMP6_UNREACH_SRC_HDR_ERROR 7 /* error in src routing header */
175 #define ICMP6_TOOBIG 2 /* Packet Too Big */
176 #define ICMP6_TIMXCEED 3 /* Time Exceeded */
177 #define ICMP6_TIMXCEED_INTRANS 0 /* hop limit exceeded in transit */
178 #define ICMP6_TIMXCEED_REASS 1 /* ttl=0 in reass */
179 #define ICMP6_PARAMPROB 4 /* Parameter Problem */
180 #define ICMP6_PARAMPROB_HDR_FIELD 0 /* err header field */
181 #define ICMP6_PARAMPROB_NXTHDR_TYPE 1 /* unrecognized Next Header type */
182 #define ICMP6_PARAMPROB_IPV6_OPT 2 /* unrecognized IPv6 option */
183
184 /* Informational Messages */
185 #define ICMP6_ECHO_REQUEST 128 /* Echo Request */
186 #define ICMP6_ECHO_REPLY 129 /* Echo Reply */
187 #define ICMP6_NDP_RS 133 /* Router Solicitation (NDP) */
188 #define ICMP6_NDP_RA 134 /* Router Advertisement (NDP) */
189 #define ICMP6_NDP_NS 135 /* Neighbor Solicitation (NDP) */
190 #define ICMP6_NDP_NA 136 /* Neighbor Advertisement (NDP) */
191 #define ICMP6_NDP_REDIRECT 137 /* Redirect Message (NDP) */
192
193 /*
194 * Router Configuration Variables (rfc4861#section-6)
195 */
196 #define NDP_IsRouter 1
197 #define NDP_AdvSendAdvertisements 1
198 #define NDP_MaxRtrAdvInterval 600000
199 #define NDP_MinRtrAdvInterval ((NDP_MaxRtrAdvInterval >= 9) ? \
200 NDP_MaxRtrAdvInterval / 3 : \
201 NDP_MaxRtrAdvInterval)
202 #define NDP_AdvManagedFlag 0
203 #define NDP_AdvOtherConfigFlag 0
204 #define NDP_AdvLinkMTU 0
205 #define NDP_AdvReachableTime 0
206 #define NDP_AdvRetransTime 0
207 #define NDP_AdvCurHopLimit 64
208 #define NDP_AdvDefaultLifetime ((3 * NDP_MaxRtrAdvInterval) / 1000)
209 #define NDP_AdvValidLifetime 86400
210 #define NDP_AdvOnLinkFlag 1
211 #define NDP_AdvPrefLifetime 14400
212 #define NDP_AdvAutonomousFlag 1
213
214 void icmp6_init(Slirp *slirp);
215 void icmp6_cleanup(Slirp *slirp);
216 void icmp6_input(struct mbuf *);
217 void icmp6_send_error(struct mbuf *m, uint8_t type, uint8_t code);
218 void ndp_send_ra(Slirp *slirp);
219 void ndp_send_ns(Slirp *slirp, struct in6_addr addr);
220
221 #endif