File: dhcp6.h

package info (click to toggle)
wide-dhcpv6 20080615-8squeeze1
  • links: PTS, VCS
  • area: main
  • in suites: squeeze
  • size: 2,836 kB
  • ctags: 3,372
  • sloc: ansic: 14,751; yacc: 1,101; sh: 567; lex: 456; makefile: 99
file content (392 lines) | stat: -rw-r--r-- 11,533 bytes parent folder | download | duplicates (6)
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
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
/*	$KAME: dhcp6.h,v 1.56 2005/03/20 06:46:09 jinmei Exp $	*/
/*
 * Copyright (C) 1998 and 1999 WIDE Project.
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the project nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef __DHCP6_H_DEFINED
#define __DHCP6_H_DEFINED

#ifdef __sun__
#define	__P(x)	x
typedef uint8_t u_int8_t;
#ifndef	U_INT16_T_DEFINED
#define	U_INT16_T_DEFINED
typedef uint16_t u_int16_t;
#endif
#ifndef	U_INT32_T_DEFINED
#define	U_INT32_T_DEFINED
typedef uint32_t u_int32_t;
#endif
typedef uint64_t u_int64_t;
#ifndef CMSG_SPACE
#define	CMSG_SPACE(l) \
	((unsigned int)_CMSG_HDR_ALIGN(sizeof (struct cmsghdr) + (l)))
#endif
#ifndef CMSG_LEN
#define	CMSG_LEN(l) \
	((unsigned int)_CMSG_DATA_ALIGN(sizeof (struct cmsghdr)) + (l))
#endif
#endif

/* Error Values */
#define DH6ERR_FAILURE		16
#define DH6ERR_AUTHFAIL		17
#define DH6ERR_POORLYFORMED	18
#define DH6ERR_UNAVAIL		19
#define DH6ERR_OPTUNAVAIL	20

/* Message type */
#define DH6_SOLICIT	1
#define DH6_ADVERTISE	2
#define DH6_REQUEST	3
#define DH6_CONFIRM	4
#define DH6_RENEW	5
#define DH6_REBIND	6
#define DH6_REPLY	7
#define DH6_RELEASE	8
#define DH6_DECLINE	9
#define DH6_RECONFIGURE	10
#define DH6_INFORM_REQ	11
#define DH6_RELAY_FORW	12
#define DH6_RELAY_REPLY	13

/* Predefined addresses */
#define DH6ADDR_ALLAGENT	"ff02::1:2"
#define DH6ADDR_ALLSERVER	"ff05::1:3"
#define DH6PORT_DOWNSTREAM	"546"
#define DH6PORT_UPSTREAM	"547"

/* Protocol constants */

/* timer parameters (msec, unless explicitly commented) */
#define SOL_MAX_DELAY	1000
#define SOL_TIMEOUT	1000
#define SOL_MAX_RT	120000
#define INF_TIMEOUT	1000
#define INF_MAX_RT	120000
#define REQ_TIMEOUT	1000
#define REQ_MAX_RT	30000
#define REQ_MAX_RC	10	/* Max Request retry attempts */
#define REN_TIMEOUT	10000	/* 10secs */
#define REN_MAX_RT	600000	/* 600secs */
#define REB_TIMEOUT	10000	/* 10secs */
#define REB_MAX_RT	600000	/* 600secs */
#define REL_TIMEOUT	1000	/* 1 sec */
#define REL_MAX_RC	5

#define DHCP6_DURATION_INFINITE 0xffffffff
#define DHCP6_DURATION_MIN 30

#define DHCP6_RELAY_MULTICAST_HOPS 32
#define DHCP6_RELAY_HOP_COUNT_LIMIT 32

#define DHCP6_IRT_DEFAULT 86400	/* 1 day */
#define DHCP6_IRT_MINIMUM 600

#ifndef HAVE_IN6_PKTINFO
struct in6_pktinfo {
	struct in6_addr ipi6_addr;  /* src/dst IPv6 address */
	unsigned int ipi6_ifindex;  /* send/recv interface index */
};
#endif

/* DUID: DHCP unique Identifier */
struct duid {
	size_t duid_len;	/* length */
	char *duid_id;		/* variable length ID value (must be opaque) */
};

struct dhcp6_vbuf {		/* generic variable length buffer */
	int dv_len;
	caddr_t dv_buf;
};

/* option information */
struct dhcp6_ia {		/* identity association */
	u_int32_t iaid;
	u_int32_t t1;
	u_int32_t t2;
};

struct dhcp6_prefix {		/* IA_PA */
	u_int32_t pltime;
	u_int32_t vltime;
	struct in6_addr addr;
	int plen;
};

struct dhcp6_statefuladdr {	/* IA_NA */
	u_int32_t pltime;
	u_int32_t vltime;
	struct in6_addr addr;
};

/* Internal data structure */
typedef enum { DHCP6_LISTVAL_NUM = 1,
	       DHCP6_LISTVAL_STCODE, DHCP6_LISTVAL_ADDR6,
	       DHCP6_LISTVAL_IAPD, DHCP6_LISTVAL_PREFIX6,
	       DHCP6_LISTVAL_IANA, DHCP6_LISTVAL_STATEFULADDR6,
	       DHCP6_LISTVAL_VBUF
} dhcp6_listval_type_t;
TAILQ_HEAD(dhcp6_list, dhcp6_listval);
struct dhcp6_listval {
	TAILQ_ENTRY(dhcp6_listval) link;

	dhcp6_listval_type_t type;

	union {
		int uv_num;
		u_int16_t uv_num16;
		struct in6_addr uv_addr6;
		struct dhcp6_prefix uv_prefix6;
		struct dhcp6_statefuladdr uv_statefuladdr6;
		struct dhcp6_ia uv_ia;
		struct dhcp6_vbuf uv_vbuf;
	} uv;

	struct dhcp6_list sublist;
};
#define val_num uv.uv_num
#define val_num16 uv.uv_num16
#define val_addr6 uv.uv_addr6
#define val_ia uv.uv_ia
#define val_prefix6 uv.uv_prefix6
#define val_statefuladdr6 uv.uv_statefuladdr6
#define val_vbuf uv.uv_vbuf

struct dhcp6_optinfo {
	struct duid clientID;	/* DUID */
	struct duid serverID;	/* DUID */

	int rapidcommit;	/* bool */
	int pref;		/* server preference */
	int32_t elapsed_time;	/* elapsed time (from client to server only) */
	int64_t refreshtime;	/* info refresh time for stateless options */

	struct dhcp6_list iapd_list; /* list of IA_PD */
	struct dhcp6_list iana_list; /* list of IA_NA */
	struct dhcp6_list reqopt_list; /* options in option request */
	struct dhcp6_list stcode_list; /* status code */
	struct dhcp6_list sip_list; /* SIP server list */
	struct dhcp6_list sipname_list; /* SIP domain list */
	struct dhcp6_list dns_list; /* DNS server list */
	struct dhcp6_list dnsname_list; /* Domain Search list */
	struct dhcp6_list ntp_list; /* NTP server list */
	struct dhcp6_list prefix_list; /* prefix list */
	struct dhcp6_list nis_list; /* NIS server list */
	struct dhcp6_list nisname_list; /* NIS domain list */
	struct dhcp6_list nisp_list; /* NIS+ server list */
	struct dhcp6_list nispname_list; /* NIS+ domain list */
	struct dhcp6_list bcmcs_list; /* BCMC server list */
	struct dhcp6_list bcmcsname_list; /* BCMC domain list */

	struct dhcp6_vbuf relay_msg; /* relay message */
#define relaymsg_len relay_msg.dv_len
#define relaymsg_msg relay_msg.dv_buf

	struct dhcp6_vbuf ifidopt; /* Interface-id */
#define ifidopt_len ifidopt.dv_len
#define ifidopt_id ifidopt.dv_buf

	u_int authflags;
#define DHCP6OPT_AUTHFLAG_NOINFO	0x1
	int authproto;
	int authalgorithm;
	int authrdm;
	/* the followings are effective only when NOINFO is unset */
	u_int64_t authrd;
	union {
		struct {
			u_int32_t keyid;
			struct dhcp6_vbuf realm;
			int offset; /* offset to the HMAC field */
		} aiu_delayed;
		struct {
			int type;
			int offset; /* offset to the HMAC field */
			char val[16]; /* key value */
		} aiu_reconfig;
	} authinfo;
#define delayedauth_keyid authinfo.aiu_delayed.keyid
#define delayedauth_realmlen authinfo.aiu_delayed.realm.dv_len
#define delayedauth_realmval authinfo.aiu_delayed.realm.dv_buf
#define delayedauth_offset authinfo.aiu_delayed.offset
#define reconfigauth_type authinfo.aiu_reconfig.type
#define reconfigauth_offset authinfo.aiu_reconfig.offset
#define reconfigauth_val authinfo.aiu_reconfig.val
};

/* DHCP6 base packet format */
struct dhcp6 {
	union {
		u_int8_t m;
		u_int32_t x;
	} dh6_msgtypexid;
	/* options follow */
} __attribute__ ((__packed__));
#define dh6_msgtype	dh6_msgtypexid.m
#define dh6_xid		dh6_msgtypexid.x
#define DH6_XIDMASK	0x00ffffff

/* DHCPv6 relay messages */
struct dhcp6_relay {
	u_int8_t dh6relay_msgtype;
	u_int8_t dh6relay_hcnt;
	struct in6_addr dh6relay_linkaddr; /* XXX: badly aligned */
	struct in6_addr dh6relay_peeraddr; /* ditto */
	/* options follow */
} __attribute__ ((__packed__));

/* options */
#define DH6OPT_CLIENTID	1
#define DH6OPT_SERVERID	2
#define DH6OPT_IA_NA 3
#define DH6OPT_IA_TA 4
#define DH6OPT_IAADDR 5
#define DH6OPT_ORO 6
#define DH6OPT_PREFERENCE 7
#  define DH6OPT_PREF_UNDEF -1
#  define DH6OPT_PREF_MAX 255
#define DH6OPT_ELAPSED_TIME 8
#  define DH6OPT_ELAPSED_TIME_UNDEF -1
#define DH6OPT_RELAY_MSG 9
/* #define DH6OPT_SERVER_MSG 10: deprecated */
#define DH6OPT_AUTH 11
#  define DH6OPT_AUTH_PROTO_DELAYED 2
#  define DH6OPT_AUTH_RRECONFIGURE 3
#  define DH6OPT_AUTH_ALG_HMACMD5 1
#define DH6OPT_UNICAST 12
#define DH6OPT_STATUS_CODE 13
#  define DH6OPT_STCODE_SUCCESS 0
#  define DH6OPT_STCODE_UNSPECFAIL 1
#  define DH6OPT_STCODE_NOADDRSAVAIL 2
#  define DH6OPT_STCODE_NOBINDING 3
#  define DH6OPT_STCODE_NOTONLINK 4
#  define DH6OPT_STCODE_USEMULTICAST 5
#  define DH6OPT_STCODE_NOPREFIXAVAIL 6

#define DH6OPT_RAPID_COMMIT 14
#define DH6OPT_USER_CLASS 15
#define DH6OPT_VENDOR_CLASS 16
#define DH6OPT_VENDOR_OPTS 17
#define DH6OPT_INTERFACE_ID 18
#define DH6OPT_RECONF_MSG 19

#define DH6OPT_SIP_SERVER_D 21
#define DH6OPT_SIP_SERVER_A 22
#define DH6OPT_DNS 23
#define DH6OPT_DNSNAME 24
#define DH6OPT_IA_PD 25
#define DH6OPT_IA_PD_PREFIX 26
#define DH6OPT_NIS_SERVERS 27
#define DH6OPT_NISP_SERVERS 28
#define DH6OPT_NIS_DOMAIN_NAME 29
#define DH6OPT_NISP_DOMAIN_NAME 30
#define DH6OPT_NTP 31
#define DH6OPT_REFRESHTIME 32
 #define DH6OPT_REFRESHTIME_UNDEF -1
#define DH6OPT_BCMCS_SERVER_D 33
#define DH6OPT_BCMCS_SERVER_A 34
#define DH6OPT_GEOCONF_CIVIC 36
#define DH6OPT_REMOTE_ID 37
#define DH6OPT_SUBSCRIBER_ID 38
#define DH6OPT_CLIENT_FQDN 39

/* The followings are KAME specific. */

struct dhcp6opt {
	u_int16_t dh6opt_type;
	u_int16_t dh6opt_len;
	/* type-dependent data follows */
} __attribute__ ((__packed__));

/* DUID type 1 */
struct dhcp6opt_duid_type1 {
	u_int16_t dh6_duid1_type;
	u_int16_t dh6_duid1_hwtype;
	u_int32_t dh6_duid1_time;
	/* link-layer address follows */
} __attribute__ ((__packed__));

/* Status Code */
struct dhcp6opt_stcode {
	u_int16_t dh6_stcode_type;
	u_int16_t dh6_stcode_len;
	u_int16_t dh6_stcode_code;
} __attribute__ ((__packed__));

/*
 * General format of Identity Association.
 * This format applies to Prefix Delegation (IA_PD) and Non-temporary Addresses
 * (IA_NA)
 */
struct dhcp6opt_ia {
	u_int16_t dh6_ia_type;
	u_int16_t dh6_ia_len;
	u_int32_t dh6_ia_iaid;
	u_int32_t dh6_ia_t1;
	u_int32_t dh6_ia_t2;
	/* sub options follow */
} __attribute__ ((__packed__));

/* IA Addr */
struct dhcp6opt_ia_addr {
	u_int16_t dh6_ia_addr_type;
	u_int16_t dh6_ia_addr_len;
	struct in6_addr dh6_ia_addr_addr;
	u_int32_t dh6_ia_addr_preferred_time;
	u_int32_t dh6_ia_addr_valid_time;
} __attribute__ ((__packed__));

/* IA_PD Prefix */
struct dhcp6opt_ia_pd_prefix {
	u_int16_t dh6_iapd_prefix_type;
	u_int16_t dh6_iapd_prefix_len;
	u_int32_t dh6_iapd_prefix_preferred_time;
	u_int32_t dh6_iapd_prefix_valid_time;
	u_int8_t dh6_iapd_prefix_prefix_len;
	struct in6_addr dh6_iapd_prefix_prefix_addr;
} __attribute__ ((__packed__));

/* Authentication */
struct dhcp6opt_auth {
	u_int16_t dh6_auth_type;
	u_int16_t dh6_auth_len;
	u_int8_t dh6_auth_proto;
	u_int8_t dh6_auth_alg;
	u_int8_t dh6_auth_rdm;
	u_int8_t dh6_auth_rdinfo[8];
	/* authentication information follows */
} __attribute__ ((__packed__));

enum { DHCP6_AUTHPROTO_UNDEF = -1, DHCP6_AUTHPROTO_DELAYED = 2,
       DHCP6_AUTHPROTO_RECONFIG = 3 };
enum { DHCP6_AUTHALG_UNDEF = -1, DHCP6_AUTHALG_HMACMD5 = 1 };
enum { DHCP6_AUTHRDM_UNDEF = -1, DHCP6_AUTHRDM_MONOCOUNTER = 0 };

#endif /*__DHCP6_H_DEFINED*/