treewide: initialize properly file descriptors
[project/odhcpd.git] / src / dhcpv6.h
1 /**
2 * Copyright (C) 2012 Steven Barth <steven@midlink.org>
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2
6 * as published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License version 2 for more details.
12 *
13 */
14 #pragma once
15
16 #include "odhcpd.h"
17
18 #define ALL_DHCPV6_RELAYS "ff02::1:2"
19
20 #define ALL_DHCPV6_SERVERS "ff05::1:3"
21
22 #define DHCPV6_CLIENT_PORT 546
23 #define DHCPV6_SERVER_PORT 547
24
25 #define DHCPV6_MSG_SOLICIT 1
26 #define DHCPV6_MSG_ADVERTISE 2
27 #define DHCPV6_MSG_REQUEST 3
28 #define DHCPV6_MSG_CONFIRM 4
29 #define DHCPV6_MSG_RENEW 5
30 #define DHCPV6_MSG_REBIND 6
31 #define DHCPV6_MSG_REPLY 7
32 #define DHCPV6_MSG_RELEASE 8
33 #define DHCPV6_MSG_DECLINE 9
34 #define DHCPV6_MSG_RECONFIGURE 10
35 #define DHCPV6_MSG_INFORMATION_REQUEST 11
36 #define DHCPV6_MSG_RELAY_FORW 12
37 #define DHCPV6_MSG_RELAY_REPL 13
38
39 #define DHCPV6_OPT_CLIENTID 1
40 #define DHCPV6_OPT_SERVERID 2
41 #define DHCPV6_OPT_IA_NA 3
42 #define DHCPV6_OPT_IA_ADDR 5
43 #define DHCPV6_OPT_ORO 6
44 #define DHCPV6_OPT_STATUS 13
45 #define DHCPV6_OPT_RELAY_MSG 9
46 #define DHCPV6_OPT_AUTH 11
47 #define DHCPV6_OPT_RAPID_COMMIT 14
48 #define DHCPV6_OPT_USER_CLASS 15
49 #define DHCPV6_OPT_INTERFACE_ID 18
50 #define DHCPV6_OPT_RECONF_MSG 19
51 #define DHCPV6_OPT_RECONF_ACCEPT 20
52 #define DHCPV6_OPT_DNS_SERVERS 23
53 #define DHCPV6_OPT_DNS_DOMAIN 24
54 #define DHCPV6_OPT_IA_PD 25
55 #define DHCPV6_OPT_IA_PREFIX 26
56 #define DHCPV6_OPT_INFO_REFRESH 32
57 #define DHCPV6_OPT_FQDN 39
58 #define DHCPV6_OPT_SOL_MAX_RT 82
59 #define DHCPV6_OPT_INF_MAX_RT 83
60
61 #define DHCPV6_DUID_VENDOR 2
62
63 #define DHCPV6_STATUS_OK 0
64 #define DHCPV6_STATUS_NOADDRSAVAIL 2
65 #define DHCPV6_STATUS_NOBINDING 3
66 #define DHCPV6_STATUS_NOTONLINK 4
67 #define DHCPV6_STATUS_USEMULTICAST 5
68 #define DHCPV6_STATUS_NOPREFIXAVAIL 6
69
70 // I just remembered I have an old one lying around...
71 #define DHCPV6_ENT_NO 30462
72 #define DHCPV6_ENT_TYPE 1
73
74
75 #define DHCPV6_HOP_COUNT_LIMIT 32
76
77 #define DHCPV6_REC_TIMEOUT 2000 /* msec */
78 #define DHCPV6_REC_MAX_RC 8
79
80 struct dhcpv6_client_header {
81 uint8_t msg_type;
82 uint8_t transaction_id[3];
83 } __attribute__((packed));
84
85 struct dhcpv6_relay_header {
86 uint8_t msg_type;
87 uint8_t hop_count;
88 struct in6_addr link_address;
89 struct in6_addr peer_address;
90 uint8_t options[];
91 } __attribute__((packed));
92
93 struct dhcpv6_relay_forward_envelope {
94 uint8_t msg_type;
95 uint8_t hop_count;
96 struct in6_addr link_address;
97 struct in6_addr peer_address;
98 uint16_t interface_id_type;
99 uint16_t interface_id_len;
100 uint32_t interface_id_data;
101 uint16_t relay_message_type;
102 uint16_t relay_message_len;
103 } __attribute__((packed));
104
105 struct dhcpv6_auth_reconfigure {
106 uint16_t type;
107 uint16_t len;
108 uint8_t protocol;
109 uint8_t algorithm;
110 uint8_t rdm;
111 uint32_t replay[2];
112 uint8_t reconf_type;
113 uint8_t key[16];
114 } _packed;
115
116 struct dhcpv6_ia_hdr {
117 uint16_t type;
118 uint16_t len;
119 uint32_t iaid;
120 uint32_t t1;
121 uint32_t t2;
122 } _packed;
123
124 struct dhcpv6_ia_prefix {
125 uint16_t type;
126 uint16_t len;
127 uint32_t preferred;
128 uint32_t valid;
129 uint8_t prefix;
130 struct in6_addr addr;
131 } _packed;
132
133 struct dhcpv6_ia_addr {
134 uint16_t type;
135 uint16_t len;
136 struct in6_addr addr;
137 uint32_t preferred;
138 uint32_t valid;
139 } _packed;
140
141 struct dhcpv6_cer_id {
142 uint16_t type;
143 uint16_t len;
144 uint16_t reserved;
145 uint16_t auth_type;
146 uint8_t auth[16];
147 struct in6_addr addr;
148 };
149
150 #define dhcpv6_for_each_option(start, end, otype, olen, odata)\
151 for (uint8_t *_o = (uint8_t*)(start); _o + 4 <= (end) &&\
152 ((otype) = _o[0] << 8 | _o[1]) && ((odata) = (void*)&_o[4]) &&\
153 ((olen) = _o[2] << 8 | _o[3]) + (odata) <= (end); \
154 _o += 4 + (_o[2] << 8 | _o[3]))