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2aa62f2b 1/* $NetBSD: nameser.h,v 1.19.4.1 2007/05/17 21:25:12 jdc Exp $ */\r
2\r
3/*\r
4 * Copyright (c) 1983, 1989, 1993\r
5 * The Regents of the University of California. All rights reserved.\r
6 *\r
7 * Redistribution and use in source and binary forms, with or without\r
8 * modification, are permitted provided that the following conditions\r
9 * are met:\r
10 * 1. Redistributions of source code must retain the above copyright\r
11 * notice, this list of conditions and the following disclaimer.\r
12 * 2. Redistributions in binary form must reproduce the above copyright\r
13 * notice, this list of conditions and the following disclaimer in the\r
14 * documentation and/or other materials provided with the distribution.\r
15 * 3. Neither the name of the University nor the names of its contributors\r
16 * may be used to endorse or promote products derived from this software\r
17 * without specific prior written permission.\r
18 *\r
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND\r
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE\r
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL\r
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS\r
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)\r
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT\r
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY\r
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF\r
29 * SUCH DAMAGE.\r
30 */\r
31\r
32/*\r
33 * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")\r
34 * Copyright (c) 1996-1999 by Internet Software Consortium.\r
35 *\r
36 * Permission to use, copy, modify, and distribute this software for any\r
37 * purpose with or without fee is hereby granted, provided that the above\r
38 * copyright notice and this permission notice appear in all copies.\r
39 *\r
40 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES\r
41 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF\r
42 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR\r
43 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES\r
44 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN\r
45 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT\r
46 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.\r
47 */\r
48\r
49/*\r
50 * Id: nameser.h,v 1.7.18.1 2005/04/27 05:00:50 sra Exp\r
51 */\r
52\r
53#ifndef _ARPA_NAMESER_H_\r
54#define _ARPA_NAMESER_H_\r
55\r
56#define BIND_4_COMPAT\r
57\r
58#include <sys/param.h>\r
59#if (!defined(BSD)) || (BSD < 199306)\r
60# include <sys/bitypes.h>\r
61#else\r
62# include <sys/types.h>\r
63#endif\r
64#include <sys/EfiCdefs.h>\r
65\r
66/*%\r
67 * Revision information. This is the release date in YYYYMMDD format.\r
68 * It can change every day so the right thing to do with it is use it\r
69 * in preprocessor commands such as "#if (__NAMESER > 19931104)". Do not\r
70 * compare for equality; rather, use it to determine whether your libbind.a\r
71 * contains a new enough lib/nameser/ to support the feature you need.\r
72 */\r
73\r
74#define __NAMESER 19991006 /*%< New interface version stamp. */\r
75\r
76/*\r
77 * Define constants based on RFC0883, RFC1034, RFC 1035\r
78 */\r
79#define NS_PACKETSZ 512 /*%< default UDP packet size */\r
80#define NS_MAXDNAME 1025 /*%< maximum domain name */\r
81#define NS_MAXMSG 65535 /*%< maximum message size */\r
82#define NS_MAXCDNAME 255 /*%< maximum compressed domain name */\r
83#define NS_MAXLABEL 63 /*%< maximum length of domain label */\r
84#define NS_HFIXEDSZ 12 /*%< #/bytes of fixed data in header */\r
85#define NS_QFIXEDSZ 4 /*%< #/bytes of fixed data in query */\r
86#define NS_RRFIXEDSZ 10 /*%< #/bytes of fixed data in r record */\r
87#define NS_INT32SZ 4 /*%< #/bytes of data in a u_int32_t */\r
88#define NS_INT16SZ 2 /*%< #/bytes of data in a u_int16_t */\r
89#define NS_INT8SZ 1 /*%< #/bytes of data in a u_int8_t */\r
90#define NS_INADDRSZ 4 /*%< IPv4 T_A */\r
91#define NS_IN6ADDRSZ 16 /*%< IPv6 T_AAAA */\r
92#define NS_CMPRSFLGS 0xc0 /*%< Flag bits indicating name compression. */\r
93#define NS_DEFAULTPORT 53 /*%< For both TCP and UDP. */\r
94\r
95/*\r
96 * These can be expanded with synonyms, just keep ns_parse.c:ns_parserecord()\r
97 * in synch with it.\r
98 */\r
99typedef enum __ns_sect {\r
100 ns_s_qd = 0, /*%< Query: Question. */\r
101 ns_s_zn = 0, /*%< Update: Zone. */\r
102 ns_s_an = 1, /*%< Query: Answer. */\r
103 ns_s_pr = 1, /*%< Update: Prerequisites. */\r
104 ns_s_ns = 2, /*%< Query: Name servers. */\r
105 ns_s_ud = 2, /*%< Update: Update. */\r
106 ns_s_ar = 3, /*%< Query|Update: Additional records. */\r
107 ns_s_max = 4\r
108} ns_sect;\r
109\r
110/*%\r
111 * This is a message handle. It is caller allocated and has no dynamic data.\r
112 * This structure is intended to be opaque to all but ns_parse.c, thus the\r
113 * leading _'s on the member names. Use the accessor functions, not the _'s.\r
114 */\r
115typedef struct __ns_msg {\r
116 const u_char *_msg, *_eom;\r
117 uint16_t _id, _flags, _counts[ns_s_max];\r
118 const u_char *_sections[ns_s_max];\r
119 ns_sect _sect;\r
120 int _rrnum;\r
121 const u_char *_msg_ptr;\r
122} ns_msg;\r
123\r
124/* Private data structure - do not use from outside library. */\r
125struct _ns_flagdata { int mask, shift; };\r
126extern struct _ns_flagdata _ns_flagdata[];\r
127\r
128/* Accessor macros - this is part of the public interface. */\r
d7ce7006 129#define ns_msg_getflag(handle, flag) ( \\r
130 ((handle)._flags & _ns_flagdata[flag].mask) \\r
131 >> _ns_flagdata[flag].shift \\r
132 )\r
2aa62f2b 133\r
134#define ns_msg_id(handle) ((handle)._id + 0)\r
135#define ns_msg_base(handle) ((handle)._msg + 0)\r
136#define ns_msg_end(handle) ((handle)._eom + 0)\r
137#define ns_msg_size(handle) ((size_t)((handle)._eom - (handle)._msg))\r
138#define ns_msg_count(handle, section) ((handle)._counts[section] + 0)\r
139\r
140/*%\r
141 * This is a parsed record. It is caller allocated and has no dynamic data.\r
142 */\r
143typedef struct __ns_rr {\r
144 char name[NS_MAXDNAME];\r
145 uint16_t type;\r
146 uint16_t rr_class;\r
147 uint32_t ttl;\r
148 uint16_t rdlength;\r
149 const u_char * rdata;\r
150} ns_rr;\r
151\r
152/* Accessor macros - this is part of the public interface. */\r
153#define ns_rr_name(rr) (((rr).name[0] != '\0') ? (rr).name : ".")\r
154#define ns_rr_type(rr) ((ns_type)((rr).type + 0))\r
155#define ns_rr_class(rr) ((ns_class)((rr).rr_class + 0))\r
156#define ns_rr_ttl(rr) ((u_long)(rr).ttl + 0)\r
157#define ns_rr_rdlen(rr) ((size_t)(rr).rdlength + 0)\r
158#define ns_rr_rdata(rr) ((rr).rdata + 0)\r
159\r
160/*%\r
161 * These don't have to be in the same order as in the packet flags word,\r
162 * and they can even overlap in some cases, but they will need to be kept\r
163 * in synch with ns_parse.c:ns_flagdata[].\r
164 */\r
165typedef enum __ns_flag {\r
166 ns_f_qr, /*%< Question/Response. */\r
167 ns_f_opcode, /*%< Operation code. */\r
168 ns_f_aa, /*%< Authoritative Answer. */\r
169 ns_f_tc, /*%< Truncation occurred. */\r
170 ns_f_rd, /*%< Recursion Desired. */\r
171 ns_f_ra, /*%< Recursion Available. */\r
172 ns_f_z, /*%< MBZ. */\r
173 ns_f_ad, /*%< Authentic Data (DNSSEC). */\r
174 ns_f_cd, /*%< Checking Disabled (DNSSEC). */\r
175 ns_f_rcode, /*%< Response code. */\r
176 ns_f_max\r
177} ns_flag;\r
178\r
179/*%\r
180 * Currently defined opcodes.\r
181 */\r
182typedef enum __ns_opcode {\r
183 ns_o_query = 0, /*%< Standard query. */\r
184 ns_o_iquery = 1, /*%< Inverse query (deprecated/unsupported). */\r
185 ns_o_status = 2, /*%< Name server status query (unsupported). */\r
186 /* Opcode 3 is undefined/reserved. */\r
187 ns_o_notify = 4, /*%< Zone change notification. */\r
188 ns_o_update = 5, /*%< Zone update message. */\r
189 ns_o_max = 6\r
190} ns_opcode;\r
191\r
192/*%\r
193 * Currently defined response codes.\r
194 */\r
195typedef enum __ns_rcode {\r
196 ns_r_noerror = 0, /*%< No error occurred. */\r
197 ns_r_formerr = 1, /*%< Format error. */\r
198 ns_r_servfail = 2, /*%< Server failure. */\r
199 ns_r_nxdomain = 3, /*%< Name error. */\r
200 ns_r_notimpl = 4, /*%< Unimplemented. */\r
201 ns_r_refused = 5, /*%< Operation refused. */\r
202 /* these are for BIND_UPDATE */\r
203 ns_r_yxdomain = 6, /*%< Name exists */\r
204 ns_r_yxrrset = 7, /*%< RRset exists */\r
205 ns_r_nxrrset = 8, /*%< RRset does not exist */\r
206 ns_r_notauth = 9, /*%< Not authoritative for zone */\r
207 ns_r_notzone = 10, /*%< Zone of record different from zone section */\r
208 ns_r_max = 11,\r
209 /* The following are EDNS extended rcodes */\r
210 ns_r_badvers = 16,\r
211 /* The following are TSIG errors */\r
212 ns_r_badsig = 16,\r
213 ns_r_badkey = 17,\r
214 ns_r_badtime = 18\r
215} ns_rcode;\r
216\r
217/* BIND_UPDATE */\r
218typedef enum __ns_update_operation {\r
219 ns_uop_delete = 0,\r
220 ns_uop_add = 1,\r
221 ns_uop_max = 2\r
222} ns_update_operation;\r
223\r
d7ce7006 224/*\r
225 * This RR-like structure is particular to UPDATE.\r
226 */\r
227struct _ns_updrec {\r
228 struct _ns_updrec *r_prev; /* prev record */\r
229 struct _ns_updrec *r_next; /* next record */\r
230 u_int8_t r_section; /* ZONE/PREREQUISITE/UPDATE */\r
231 char * r_dname; /* owner of the RR */\r
232 u_int16_t r_class; /* class number */\r
233 u_int16_t r_type; /* type number */\r
234 u_int32_t r_ttl; /* time to live */\r
235 u_char * r_data; /* rdata fields as text string */\r
236 u_int16_t r_size; /* size of r_data field */\r
237 int r_opcode; /* type of operation */\r
238 /* following fields for private use by the resolver/server routines */\r
239 struct _ns_updrec *r_grpnext; /* next record when grouped */\r
240 struct databuf *r_dp; /* databuf to process */\r
241 struct databuf *r_deldp; /* databuf's deleted/overwritten */\r
242 u_int16_t r_zone; /* zone number on server */\r
243};\r
244typedef struct _ns_updrec ns_updrec;\r
245\r
2aa62f2b 246/*%\r
247 * This structure is used for TSIG authenticated messages\r
248 */\r
249struct ns_tsig_key {\r
250 char name[NS_MAXDNAME], alg[NS_MAXDNAME];\r
251 unsigned char *data;\r
252 int len;\r
253};\r
254typedef struct ns_tsig_key ns_tsig_key;\r
255\r
256/*%\r
257 * This structure is used for TSIG authenticated TCP messages\r
258 */\r
259struct ns_tcp_tsig_state {\r
260 int counter;\r
261 struct dst_key *key;\r
262 void *ctx;\r
263 unsigned char sig[NS_PACKETSZ];\r
264 int siglen;\r
265};\r
266typedef struct ns_tcp_tsig_state ns_tcp_tsig_state;\r
267\r
268#define NS_TSIG_FUDGE 300\r
269#define NS_TSIG_TCP_COUNT 100\r
270#define NS_TSIG_ALG_HMAC_MD5 "HMAC-MD5.SIG-ALG.REG.INT"\r
271\r
272#define NS_TSIG_ERROR_NO_TSIG -10\r
273#define NS_TSIG_ERROR_NO_SPACE -11\r
274#define NS_TSIG_ERROR_FORMERR -12\r
275\r
276/*%\r
277 * Currently defined type values for resources and queries.\r
278 */\r
279typedef enum __ns_type {\r
280 ns_t_invalid = 0, /*%< Cookie. */\r
281 ns_t_a = 1, /*%< Host address. */\r
282 ns_t_ns = 2, /*%< Authoritative server. */\r
283 ns_t_md = 3, /*%< Mail destination. */\r
284 ns_t_mf = 4, /*%< Mail forwarder. */\r
285 ns_t_cname = 5, /*%< Canonical name. */\r
286 ns_t_soa = 6, /*%< Start of authority zone. */\r
287 ns_t_mb = 7, /*%< Mailbox domain name. */\r
288 ns_t_mg = 8, /*%< Mail group member. */\r
289 ns_t_mr = 9, /*%< Mail rename name. */\r
290 ns_t_null = 10, /*%< Null resource record. */\r
291 ns_t_wks = 11, /*%< Well known service. */\r
292 ns_t_ptr = 12, /*%< Domain name pointer. */\r
293 ns_t_hinfo = 13, /*%< Host information. */\r
294 ns_t_minfo = 14, /*%< Mailbox information. */\r
295 ns_t_mx = 15, /*%< Mail routing information. */\r
296 ns_t_txt = 16, /*%< Text strings. */\r
297 ns_t_rp = 17, /*%< Responsible person. */\r
298 ns_t_afsdb = 18, /*%< AFS cell database. */\r
299 ns_t_x25 = 19, /*%< X_25 calling address. */\r
300 ns_t_isdn = 20, /*%< ISDN calling address. */\r
301 ns_t_rt = 21, /*%< Router. */\r
302 ns_t_nsap = 22, /*%< NSAP address. */\r
303 ns_t_nsap_ptr = 23, /*%< Reverse NSAP lookup (deprecated). */\r
304 ns_t_sig = 24, /*%< Security signature. */\r
305 ns_t_key = 25, /*%< Security key. */\r
306 ns_t_px = 26, /*%< X.400 mail mapping. */\r
307 ns_t_gpos = 27, /*%< Geographical position (withdrawn). */\r
308 ns_t_aaaa = 28, /*%< Ip6 Address. */\r
309 ns_t_loc = 29, /*%< Location Information. */\r
310 ns_t_nxt = 30, /*%< Next domain (security). */\r
311 ns_t_eid = 31, /*%< Endpoint identifier. */\r
312 ns_t_nimloc = 32, /*%< Nimrod Locator. */\r
313 ns_t_srv = 33, /*%< Server Selection. */\r
314 ns_t_atma = 34, /*%< ATM Address */\r
315 ns_t_naptr = 35, /*%< Naming Authority PoinTeR */\r
316 ns_t_kx = 36, /*%< Key Exchange */\r
317 ns_t_cert = 37, /*%< Certification record */\r
318 ns_t_a6 = 38, /*%< IPv6 address (deprecates AAAA) */\r
319 ns_t_dname = 39, /*%< Non-terminal DNAME (for IPv6) */\r
320 ns_t_sink = 40, /*%< Kitchen sink (experimentatl) */\r
321 ns_t_opt = 41, /*%< EDNS0 option (meta-RR) */\r
322 ns_t_apl = 42, /*%< Address prefix list (RFC3123) */\r
323 ns_t_tkey = 249, /*%< Transaction key */\r
324 ns_t_tsig = 250, /*%< Transaction signature. */\r
325 ns_t_ixfr = 251, /*%< Incremental zone transfer. */\r
326 ns_t_axfr = 252, /*%< Transfer zone of authority. */\r
327 ns_t_mailb = 253, /*%< Transfer mailbox records. */\r
328 ns_t_maila = 254, /*%< Transfer mail agent records. */\r
329 ns_t_any = 255, /*%< Wildcard match. */\r
330 ns_t_zxfr = 256, /*%< BIND-specific, nonstandard. */\r
331 ns_t_max = 65536\r
332} ns_type;\r
333\r
334/* Exclusively a QTYPE? (not also an RTYPE) */\r
335#define ns_t_qt_p(t) (ns_t_xfr_p(t) || (t) == ns_t_any || \\r
336 (t) == ns_t_mailb || (t) == ns_t_maila)\r
337/* Some kind of meta-RR? (not a QTYPE, but also not an RTYPE) */\r
338#define ns_t_mrr_p(t) ((t) == ns_t_tsig || (t) == ns_t_opt)\r
339/* Exclusively an RTYPE? (not also a QTYPE or a meta-RR) */\r
340#define ns_t_rr_p(t) (!ns_t_qt_p(t) && !ns_t_mrr_p(t))\r
341#define ns_t_udp_p(t) ((t) != ns_t_axfr && (t) != ns_t_zxfr)\r
342#define ns_t_xfr_p(t) ((t) == ns_t_axfr || (t) == ns_t_ixfr || \\r
343 (t) == ns_t_zxfr)\r
344\r
345/*%\r
346 * Values for class field\r
347 */\r
348typedef enum __ns_class {\r
349 ns_c_invalid = 0, /*%< Cookie. */\r
350 ns_c_in = 1, /*%< Internet. */\r
351 ns_c_2 = 2, /*%< unallocated/unsupported. */\r
352 ns_c_chaos = 3, /*%< MIT Chaos-net. */\r
353 ns_c_hs = 4, /*%< MIT Hesiod. */\r
354 /* Query class values which do not appear in resource records */\r
355 ns_c_none = 254, /*%< for prereq. sections in update requests */\r
356 ns_c_any = 255, /*%< Wildcard match. */\r
357 ns_c_max = 65536\r
358} ns_class;\r
359\r
360/* DNSSEC constants. */\r
361\r
362typedef enum __ns_key_types {\r
363 ns_kt_rsa = 1, /*%< key type RSA/MD5 */\r
364 ns_kt_dh = 2, /*%< Diffie Hellman */\r
365 ns_kt_dsa = 3, /*%< Digital Signature Standard (MANDATORY) */\r
366 ns_kt_private = 254 /*%< Private key type starts with OID */\r
367} ns_key_types;\r
368\r
369typedef enum __ns_cert_types {\r
370 cert_t_pkix = 1, /*%< PKIX (X.509v3) */\r
371 cert_t_spki = 2, /*%< SPKI */\r
372 cert_t_pgp = 3, /*%< PGP */\r
373 cert_t_url = 253, /*%< URL private type */\r
374 cert_t_oid = 254 /*%< OID private type */\r
375} ns_cert_types;\r
376\r
377/* Flags field of the KEY RR rdata. */\r
378#define NS_KEY_TYPEMASK 0xC000 /*%< Mask for "type" bits */\r
379#define NS_KEY_TYPE_AUTH_CONF 0x0000 /*%< Key usable for both */\r
380#define NS_KEY_TYPE_CONF_ONLY 0x8000 /*%< Key usable for confidentiality */\r
381#define NS_KEY_TYPE_AUTH_ONLY 0x4000 /*%< Key usable for authentication */\r
382#define NS_KEY_TYPE_NO_KEY 0xC000 /*%< No key usable for either; no key */\r
383/* The type bits can also be interpreted independently, as single bits: */\r
384#define NS_KEY_NO_AUTH 0x8000 /*%< Key unusable for authentication */\r
385#define NS_KEY_NO_CONF 0x4000 /*%< Key unusable for confidentiality */\r
386#define NS_KEY_RESERVED2 0x2000 /* Security is *mandatory* if bit=0 */\r
387#define NS_KEY_EXTENDED_FLAGS 0x1000 /*%< reserved - must be zero */\r
388#define NS_KEY_RESERVED4 0x0800 /*%< reserved - must be zero */\r
389#define NS_KEY_RESERVED5 0x0400 /*%< reserved - must be zero */\r
390#define NS_KEY_NAME_TYPE 0x0300 /*%< these bits determine the type */\r
391#define NS_KEY_NAME_USER 0x0000 /*%< key is assoc. with user */\r
392#define NS_KEY_NAME_ENTITY 0x0200 /*%< key is assoc. with entity eg host */\r
393#define NS_KEY_NAME_ZONE 0x0100 /*%< key is zone key */\r
394#define NS_KEY_NAME_RESERVED 0x0300 /*%< reserved meaning */\r
395#define NS_KEY_RESERVED8 0x0080 /*%< reserved - must be zero */\r
396#define NS_KEY_RESERVED9 0x0040 /*%< reserved - must be zero */\r
397#define NS_KEY_RESERVED10 0x0020 /*%< reserved - must be zero */\r
398#define NS_KEY_RESERVED11 0x0010 /*%< reserved - must be zero */\r
399#define NS_KEY_SIGNATORYMASK 0x000F /*%< key can sign RR's of same name */\r
400#define NS_KEY_RESERVED_BITMASK ( NS_KEY_RESERVED2 | \\r
401 NS_KEY_RESERVED4 | \\r
402 NS_KEY_RESERVED5 | \\r
403 NS_KEY_RESERVED8 | \\r
404 NS_KEY_RESERVED9 | \\r
405 NS_KEY_RESERVED10 | \\r
406 NS_KEY_RESERVED11 )\r
407#define NS_KEY_RESERVED_BITMASK2 0xFFFF /*%< no bits defined here */\r
408\r
409/* The Algorithm field of the KEY and SIG RR's is an integer, {1..254} */\r
410#define NS_ALG_MD5RSA 1 /*%< MD5 with RSA */\r
411#define NS_ALG_DH 2 /*%< Diffie Hellman KEY */\r
412#define NS_ALG_DSA 3 /*%< DSA KEY */\r
413#define NS_ALG_DSS NS_ALG_DSA\r
414#define NS_ALG_EXPIRE_ONLY 253 /*%< No alg, no security */\r
415#define NS_ALG_PRIVATE_OID 254 /*%< Key begins with OID giving alg */\r
416\r
417/* Protocol values */\r
418/* value 0 is reserved */\r
419#define NS_KEY_PROT_TLS 1\r
420#define NS_KEY_PROT_EMAIL 2\r
421#define NS_KEY_PROT_DNSSEC 3\r
422#define NS_KEY_PROT_IPSEC 4\r
423#define NS_KEY_PROT_ANY 255\r
424\r
425/* Signatures */\r
426#define NS_MD5RSA_MIN_BITS 512 /*%< Size of a mod or exp in bits */\r
427#define NS_MD5RSA_MAX_BITS 4096\r
428 /* Total of binary mod and exp */\r
429#define NS_MD5RSA_MAX_BYTES ((NS_MD5RSA_MAX_BITS+7/8)*2+3)\r
430 /* Max length of text sig block */\r
431#define NS_MD5RSA_MAX_BASE64 (((NS_MD5RSA_MAX_BYTES+2)/3)*4)\r
432#define NS_MD5RSA_MIN_SIZE ((NS_MD5RSA_MIN_BITS+7)/8)\r
433#define NS_MD5RSA_MAX_SIZE ((NS_MD5RSA_MAX_BITS+7)/8)\r
434\r
435#define NS_DSA_SIG_SIZE 41\r
436#define NS_DSA_MIN_SIZE 213\r
437#define NS_DSA_MAX_BYTES 405\r
438\r
439/* Offsets into SIG record rdata to find various values */\r
440#define NS_SIG_TYPE 0 /*%< Type flags */\r
441#define NS_SIG_ALG 2 /*%< Algorithm */\r
442#define NS_SIG_LABELS 3 /*%< How many labels in name */\r
443#define NS_SIG_OTTL 4 /*%< Original TTL */\r
444#define NS_SIG_EXPIR 8 /*%< Expiration time */\r
445#define NS_SIG_SIGNED 12 /*%< Signature time */\r
446#define NS_SIG_FOOT 16 /*%< Key footprint */\r
447#define NS_SIG_SIGNER 18 /*%< Domain name of who signed it */\r
448\r
449/* How RR types are represented as bit-flags in NXT records */\r
450#define NS_NXT_BITS 8\r
451#define NS_NXT_BIT_SET( n,p) (p[(n)/NS_NXT_BITS] |= (0x80>>((n)%NS_NXT_BITS)))\r
452#define NS_NXT_BIT_CLEAR(n,p) (p[(n)/NS_NXT_BITS] &= ~(0x80>>((n)%NS_NXT_BITS)))\r
453#define NS_NXT_BIT_ISSET(n,p) (p[(n)/NS_NXT_BITS] & (0x80>>((n)%NS_NXT_BITS)))\r
454#define NS_NXT_MAX 127\r
455\r
456/*%\r
457 * EDNS0 extended flags, host order.\r
458 */\r
459#define NS_OPT_DNSSEC_OK 0x8000U\r
460\r
461/*%\r
462 * Inline versions of get/put short/long. Pointer is advanced.\r
463 */\r
464#define NS_GET16(s, cp) do { \\r
465 const u_char *t_cp = (const u_char *)(cp); \\r
466 (s) = ((uint16_t)t_cp[0] << 8) \\r
467 | ((uint16_t)t_cp[1]) \\r
468 ; \\r
469 (cp) += NS_INT16SZ; \\r
470} while (/*CONSTCOND*/0)\r
471\r
472#define NS_GET32(l, cp) do { \\r
473 const u_char *t_cp = (const u_char *)(cp); \\r
474 (l) = ((uint32_t)t_cp[0] << 24) \\r
475 | ((uint32_t)t_cp[1] << 16) \\r
476 | ((uint32_t)t_cp[2] << 8) \\r
477 | ((uint32_t)t_cp[3]) \\r
478 ; \\r
479 (cp) += NS_INT32SZ; \\r
480} while (/*CONSTCOND*/0)\r
481\r
482#define NS_PUT16(s, cp) do { \\r
483 uint32_t t_s = (uint32_t)(s); \\r
484 u_char *t_cp = (u_char *)(cp); \\r
d7ce7006 485 *t_cp++ = (u_char)( t_s >> 8 ); \\r
486 *t_cp = (u_char)( t_s ); \\r
2aa62f2b 487 (cp) += NS_INT16SZ; \\r
488} while (/*CONSTCOND*/0)\r
489\r
490#define NS_PUT32(l, cp) do { \\r
491 uint32_t t_l = (uint32_t)(l); \\r
492 u_char *t_cp = (u_char *)(cp); \\r
d7ce7006 493 *t_cp++ = (u_char)( t_l >> 24 ); \\r
494 *t_cp++ = (u_char)( t_l >> 16 ); \\r
495 *t_cp++ = (u_char)( t_l >> 8 ); \\r
496 *t_cp = (u_char)( t_l ); \\r
2aa62f2b 497 (cp) += NS_INT32SZ; \\r
498} while (/*CONSTCOND*/0)\r
499\r
500/*%\r
501 * ANSI C identifier hiding for bind's lib/nameser.\r
502 */\r
2aa62f2b 503#define ns_get16 __ns_get16\r
504#define ns_get32 __ns_get32\r
505#define ns_put16 __ns_put16\r
506#define ns_put32 __ns_put32\r
507#define ns_initparse __ns_initparse\r
508#define ns_skiprr __ns_skiprr\r
509#define ns_parserr __ns_parserr\r
510#define ns_sprintrr __ns_sprintrr\r
511#define ns_sprintrrf __ns_sprintrrf\r
512#define ns_format_ttl __ns_format_ttl\r
513#define ns_parse_ttl __ns_parse_ttl\r
514#define ns_datetosecs __ns_datetosecs\r
515#define ns_name_ntol __ns_name_ntol\r
516#define ns_name_ntop __ns_name_ntop\r
517#define ns_name_pton __ns_name_pton\r
518#define ns_name_unpack __ns_name_unpack\r
519#define ns_name_pack __ns_name_pack\r
520#define ns_name_compress __ns_name_compress\r
521#define ns_name_uncompress __ns_name_uncompress\r
522#define ns_name_skip __ns_name_skip\r
523#define ns_name_rollback __ns_name_rollback\r
524#define ns_sign __ns_sign\r
525#define ns_sign2 __ns_sign2\r
526#define ns_sign_tcp __ns_sign_tcp\r
527#define ns_sign_tcp2 __ns_sign_tcp2\r
528#define ns_sign_tcp_init __ns_sign_tcp_init\r
529#define ns_find_tsig __ns_find_tsig\r
530#define ns_verify __ns_verify\r
531#define ns_verify_tcp __ns_verify_tcp\r
532#define ns_verify_tcp_init __ns_verify_tcp_init\r
533#define ns_samedomain __ns_samedomain\r
534#define ns_subdomain __ns_subdomain\r
535#define ns_makecanon __ns_makecanon\r
536#define ns_samename __ns_samename\r
537\r
538__BEGIN_DECLS\r
2aa62f2b 539uint16_t ns_get16(const u_char *);\r
540uint32_t ns_get32(const u_char *);\r
541void ns_put16(uint16_t, u_char *);\r
542void ns_put32(uint32_t, u_char *);\r
543int ns_initparse(const u_char *, int, ns_msg *);\r
544int ns_skiprr(const u_char *, const u_char *, ns_sect, int);\r
545int ns_parserr(ns_msg *, ns_sect, int, ns_rr *);\r
546int ns_sprintrr(const ns_msg *, const ns_rr *,\r
547 const char *, const char *, char *, size_t);\r
548int ns_sprintrrf(const u_char *, size_t, const char *,\r
549 ns_class, ns_type, u_long, const u_char *,\r
550 size_t, const char *, const char *,\r
551 char *, size_t);\r
552int ns_format_ttl(u_long, char *, size_t);\r
553int ns_parse_ttl(const char *, u_long *);\r
554uint32_t ns_datetosecs(const char *cp, int *errp);\r
555int ns_name_ntol(const u_char *, u_char *, size_t);\r
556int ns_name_ntop(const u_char *, char *, size_t);\r
557int ns_name_pton(const char *, u_char *, size_t);\r
558int ns_name_unpack(const u_char *, const u_char *,\r
559 const u_char *, u_char *, size_t);\r
560int ns_name_pack(const u_char *, u_char *, int,\r
561 const u_char **, const u_char **);\r
562int ns_name_uncompress(const u_char *, const u_char *,\r
563 const u_char *, char *, size_t);\r
564int ns_name_compress(const char *, u_char *, size_t,\r
565 const u_char **, const u_char **);\r
566int ns_name_skip(const u_char **, const u_char *);\r
567void ns_name_rollback(const u_char *, const u_char **,\r
568 const u_char **);\r
569int ns_sign(u_char *, int *, int, int, void *,\r
570 const u_char *, int, u_char *, int *, time_t);\r
571int ns_sign2(u_char *, int *, int, int, void *,\r
572 const u_char *, int, u_char *, int *, time_t,\r
573 u_char **, u_char **);\r
574int ns_sign_tcp(u_char *, int *, int, int,\r
575 ns_tcp_tsig_state *, int);\r
576int ns_sign_tcp2(u_char *, int *, int, int,\r
577 ns_tcp_tsig_state *, int,\r
578 u_char **, u_char **);\r
579int ns_sign_tcp_init(void *, const u_char *, int,\r
580 ns_tcp_tsig_state *);\r
581u_char *ns_find_tsig(u_char *, u_char *);\r
582int ns_verify(u_char *, int *, void *,\r
583 const u_char *, int, u_char *, int *,\r
584 time_t *, int);\r
585int ns_verify_tcp(u_char *, int *, ns_tcp_tsig_state *, int);\r
586int ns_verify_tcp_init(void *, const u_char *, int,\r
587 ns_tcp_tsig_state *);\r
588int ns_samedomain(const char *, const char *);\r
589int ns_subdomain(const char *, const char *);\r
590int ns_makecanon(const char *, char *, size_t);\r
591int ns_samename(const char *, const char *);\r
592__END_DECLS\r
593\r
594#ifdef BIND_4_COMPAT\r
595#include <arpa/nameser_compat.h>\r
596#endif\r
597\r
598#endif /* !_ARPA_NAMESER_H_ */\r
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