1: /* dhcp6.h
2:
3: DHCPv6 Protocol structures... */
4:
5: /*
6: * Copyright (c) 2006-2010 by Internet Systems Consortium, Inc. ("ISC")
7: *
8: * Permission to use, copy, modify, and distribute this software for any
9: * purpose with or without fee is hereby granted, provided that the above
10: * copyright notice and this permission notice appear in all copies.
11: *
12: * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
13: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
14: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR
15: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
16: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
18: * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19: *
20: * Internet Systems Consortium, Inc.
21: * 950 Charter Street
22: * Redwood City, CA 94063
23: * <info@isc.org>
24: * https://www.isc.org/
25: */
26:
27:
28: /* DHCPv6 Option codes: */
29:
30: #define D6O_CLIENTID 1 /* RFC3315 */
31: #define D6O_SERVERID 2
32: #define D6O_IA_NA 3
33: #define D6O_IA_TA 4
34: #define D6O_IAADDR 5
35: #define D6O_ORO 6
36: #define D6O_PREFERENCE 7
37: #define D6O_ELAPSED_TIME 8
38: #define D6O_RELAY_MSG 9
39: /* Option code 10 unassigned. */
40: #define D6O_AUTH 11
41: #define D6O_UNICAST 12
42: #define D6O_STATUS_CODE 13
43: #define D6O_RAPID_COMMIT 14
44: #define D6O_USER_CLASS 15
45: #define D6O_VENDOR_CLASS 16
46: #define D6O_VENDOR_OPTS 17
47: #define D6O_INTERFACE_ID 18
48: #define D6O_RECONF_MSG 19
49: #define D6O_RECONF_ACCEPT 20
50: #define D6O_SIP_SERVERS_DNS 21 /* RFC3319 */
51: #define D6O_SIP_SERVERS_ADDR 22 /* RFC3319 */
52: #define D6O_NAME_SERVERS 23 /* RFC3646 */
53: #define D6O_DOMAIN_SEARCH 24 /* RFC3646 */
54: #define D6O_IA_PD 25 /* RFC3633 */
55: #define D6O_IAPREFIX 26 /* RFC3633 */
56: #define D6O_NIS_SERVERS 27 /* RFC3898 */
57: #define D6O_NISP_SERVERS 28 /* RFC3898 */
58: #define D6O_NIS_DOMAIN_NAME 29 /* RFC3898 */
59: #define D6O_NISP_DOMAIN_NAME 30 /* RFC3898 */
60: #define D6O_SNTP_SERVERS 31 /* RFC4075 */
61: #define D6O_INFORMATION_REFRESH_TIME 32 /* RFC4242 */
62: #define D6O_BCMCS_SERVER_D 33 /* RFC4280 */
63: #define D6O_BCMCS_SERVER_A 34 /* RFC4280 */
64: /* 35 is unassigned */
65: #define D6O_GEOCONF_CIVIC 36 /* RFC4776 */
66: #define D6O_REMOTE_ID 37 /* RFC4649 */
67: #define D6O_SUBSCRIBER_ID 38 /* RFC4580 */
68: #define D6O_CLIENT_FQDN 39 /* RFC4704 */
69: #define D6O_PANA_AGENT 40 /* paa-option */
70: #define D6O_NEW_POSIX_TIMEZONE 41 /* RFC4833 */
71: #define D6O_NEW_TZDB_TIMEZONE 42 /* RFC4833 */
72: #define D6O_ERO 43 /* RFC4994 */
73: #define D6O_LQ_QUERY 44 /* RFC5007 */
74: #define D6O_CLIENT_DATA 45 /* RFC5007 */
75: #define D6O_CLT_TIME 46 /* RFC5007 */
76: #define D6O_LQ_RELAY_DATA 47 /* RFC5007 */
77: #define D6O_LQ_CLIENT_LINK 48 /* RFC5007 */
78:
79: /*
80: * Status Codes, from RFC 3315 section 24.4, and RFC 3633, 5007.
81: */
82: #define STATUS_Success 0
83: #define STATUS_UnspecFail 1
84: #define STATUS_NoAddrsAvail 2
85: #define STATUS_NoBinding 3
86: #define STATUS_NotOnLink 4
87: #define STATUS_UseMulticast 5
88: #define STATUS_NoPrefixAvail 6
89: #define STATUS_UnknownQueryType 7
90: #define STATUS_MalformedQuery 8
91: #define STATUS_NotConfigured 9
92: #define STATUS_NotAllowed 10
93:
94: /*
95: * DHCPv6 message types, defined in section 5.3 of RFC 3315
96: */
97: #define DHCPV6_SOLICIT 1
98: #define DHCPV6_ADVERTISE 2
99: #define DHCPV6_REQUEST 3
100: #define DHCPV6_CONFIRM 4
101: #define DHCPV6_RENEW 5
102: #define DHCPV6_REBIND 6
103: #define DHCPV6_REPLY 7
104: #define DHCPV6_RELEASE 8
105: #define DHCPV6_DECLINE 9
106: #define DHCPV6_RECONFIGURE 10
107: #define DHCPV6_INFORMATION_REQUEST 11
108: #define DHCPV6_RELAY_FORW 12
109: #define DHCPV6_RELAY_REPL 13
110: #define DHCPV6_LEASEQUERY 14
111: #define DHCPV6_LEASEQUERY_REPLY 15
112:
113: extern const char *dhcpv6_type_names[];
114: extern const int dhcpv6_type_name_max;
115:
116: /* DUID type definitions (RFC3315 section 9).
117: */
118: #define DUID_LLT 1
119: #define DUID_EN 2
120: #define DUID_LL 3
121:
122: /* Offsets into IA_*'s where Option spaces commence. */
123: #define IA_NA_OFFSET 12 /* IAID, T1, T2, all 4 octets each */
124: #define IA_TA_OFFSET 4 /* IAID only, 4 octets */
125: #define IA_PD_OFFSET 12 /* IAID, T1, T2, all 4 octets each */
126:
127: /* Offset into IAADDR's where Option spaces commence. */
128: #define IAADDR_OFFSET 24
129:
130: /* Offset into IAPREFIX's where Option spaces commence. */
131: #define IAPREFIX_OFFSET 25
132:
133: /* Offset into LQ_QUERY's where Option spaces commence. */
134: #define LQ_QUERY_OFFSET 17
135:
136: /*
137: * DHCPv6 well-known multicast addressess, from section 5.1 of RFC 3315
138: */
139: #define All_DHCP_Relay_Agents_and_Servers "FF02::1:2"
140: #define All_DHCP_Servers "FF05::1:3"
141:
142: /*
143: * DHCPv6 Retransmission Constants (RFC3315 section 5.5, RFC 5007)
144: */
145:
146: #define SOL_MAX_DELAY 1
147: #define SOL_TIMEOUT 1
148: #define SOL_MAX_RT 120
149: #define REQ_TIMEOUT 1
150: #define REQ_MAX_RT 30
151: #define REQ_MAX_RC 10
152: #define CNF_MAX_DELAY 1
153: #define CNF_TIMEOUT 1
154: #define CNF_MAX_RT 4
155: #define CNF_MAX_RD 10
156: #define REN_TIMEOUT 10
157: #define REN_MAX_RT 600
158: #define REB_TIMEOUT 10
159: #define REB_MAX_RT 600
160: #define INF_MAX_DELAY 1
161: #define INF_TIMEOUT 1
162: #define INF_MAX_RT 120
163: #define REL_TIMEOUT 1
164: #define REL_MAX_RC 5
165: #define DEC_TIMEOUT 1
166: #define DEC_MAX_RC 5
167: #define REC_TIMEOUT 2
168: #define REC_MAX_RC 8
169: #define HOP_COUNT_LIMIT 32
170: #define LQ6_TIMEOUT 1
171: #define LQ6_MAX_RT 10
172: #define LQ6_MAX_RC 5
173:
174: /*
175: * Normal packet format, defined in section 6 of RFC 3315
176: */
177: struct dhcpv6_packet {
178: unsigned char msg_type;
179: unsigned char transaction_id[3];
180: unsigned char options[FLEXIBLE_ARRAY_MEMBER];
181: };
182:
183: /* Offset into DHCPV6 Reply packets where Options spaces commence. */
184: #define REPLY_OPTIONS_INDEX 4
185:
186: /*
187: * Relay packet format, defined in section 7 of RFC 3315
188: */
189: struct dhcpv6_relay_packet {
190: unsigned char msg_type;
191: unsigned char hop_count;
192: unsigned char link_address[16];
193: unsigned char peer_address[16];
194: unsigned char options[FLEXIBLE_ARRAY_MEMBER];
195: };
196:
197: /* Leasequery query-types (RFC 5007) */
198:
199: #define LQ6QT_BY_ADDRESS 1
200: #define LQ6QT_BY_CLIENTID 2
201:
202: /*
203: * DUID time starts 2000-01-01.
204: * This constant is the number of seconds since 1970-01-01,
205: * when the Unix epoch began.
206: */
207: #define DUID_TIME_EPOCH 946684800
208:
209: /* Information-Request Time option (RFC 4242) */
210:
211: #define IRT_DEFAULT 86400
212: #define IRT_MINIMUM 600
213:
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