external/bsd/bind/dist/lib/dns/rdata/in_1/px_26.c

   1 /*      $NetBSD: px_26.c,v 1.4 2014/12/10 04:37:59 christos Exp $       */
   2
   3 /*
   4  * Copyright (C) 2004, 2005, 2007, 2009  Internet Systems Consortium, Inc. ("ISC")
   5  * Copyright (C) 1999-2001, 2003  Internet Software Consortium.
   6  *
   7  * Permission to use, copy, modify, and/or distribute this software for any
   8  * purpose with or without fee is hereby granted, provided that the above
   9  * copyright notice and this permission notice appear in all copies.
  10  *
  11  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
  12  * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
  13  * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
  14  * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
  15  * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
  16  * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  17  * PERFORMANCE OF THIS SOFTWARE.
  18  */
  19
  20 /* Id: px_26.c,v 1.45 2009/12/04 22:06:37 tbox Exp  */
  21
  22 /* Reviewed: Mon Mar 20 10:44:27 PST 2000 */
  23
  24 /* RFC2163 */
  25
  26 #ifndef RDATA_IN_1_PX_26_C
  27 #define RDATA_IN_1_PX_26_C
  28
  29 #define RRTYPE_PX_ATTRIBUTES (0)
  30
  31 static inline isc_result_t
  32 fromtext_in_px(ARGS_FROMTEXT) {
  33         isc_token_t token;
  34         dns_name_t name;
  35         isc_buffer_t buffer;
  36
  37         REQUIRE(type == 26);
  38         REQUIRE(rdclass == 1);
  39
  40         UNUSED(type);
  41         UNUSED(rdclass);
  42         UNUSED(callbacks);
  43
  44         /*
  45          * Preference.
  46          */
  47         RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
  48                                       ISC_FALSE));
  49         if (token.value.as_ulong > 0xffffU)
  50                 RETTOK(ISC_R_RANGE);
  51         RETERR(uint16_tobuffer(token.value.as_ulong, target));
  52
  53         /*
  54          * MAP822.
  55          */
  56         RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
  57                                       ISC_FALSE));
  58         dns_name_init(&name, NULL);
  59         buffer_fromregion(&buffer, &token.value.as_region);
  60         origin = (origin != NULL) ? origin : dns_rootname;
  61         RETTOK(dns_name_fromtext(&name, &buffer, origin, options, target));
  62
  63         /*
  64          * MAPX400.
  65          */
  66         RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
  67                                       ISC_FALSE));
  68         dns_name_init(&name, NULL);
  69         buffer_fromregion(&buffer, &token.value.as_region);
  70         origin = (origin != NULL) ? origin : dns_rootname;
  71         RETTOK(dns_name_fromtext(&name, &buffer, origin, options, target));
  72         return (ISC_R_SUCCESS);
  73 }
  74
  75 static inline isc_result_t
  76 totext_in_px(ARGS_TOTEXT) {
  77         isc_region_t region;
  78         dns_name_t name;
  79         dns_name_t prefix;
  80         isc_boolean_t sub;
  81         char buf[sizeof("64000")];
  82         unsigned short num;
  83
  84         REQUIRE(rdata->type == 26);
  85         REQUIRE(rdata->rdclass == 1);
  86         REQUIRE(rdata->length != 0);
  87
  88         dns_name_init(&name, NULL);
  89         dns_name_init(&prefix, NULL);
  90
  91         /*
  92          * Preference.
  93          */
  94         dns_rdata_toregion(rdata, &region);
  95         num = uint16_fromregion(&region);
  96         isc_region_consume(&region, 2);
  97         sprintf(buf, "%u", num);
  98         RETERR(str_totext(buf, target));
  99         RETERR(str_totext(" ", target));
 100
 101         /*
 102          * MAP822.
 103          */
 104         dns_name_fromregion(&name, &region);
 105         sub = name_prefix(&name, tctx->origin, &prefix);
 106         isc_region_consume(&region, name_length(&name));
 107         RETERR(dns_name_totext(&prefix, sub, target));
 108         RETERR(str_totext(" ", target));
 109
 110         /*
 111          * MAPX400.
 112          */
 113         dns_name_fromregion(&name, &region);
 114         sub = name_prefix(&name, tctx->origin, &prefix);
 115         return(dns_name_totext(&prefix, sub, target));
 116 }
 117
 118 static inline isc_result_t
 119 fromwire_in_px(ARGS_FROMWIRE) {
 120         dns_name_t name;
 121         isc_region_t sregion;
 122
 123         REQUIRE(type == 26);
 124         REQUIRE(rdclass == 1);
 125
 126         UNUSED(type);
 127         UNUSED(rdclass);
 128
 129         dns_decompress_setmethods(dctx, DNS_COMPRESS_NONE);
 130
 131         dns_name_init(&name, NULL);
 132
 133         /*
 134          * Preference.
 135          */
 136         isc_buffer_activeregion(source, &sregion);
 137         if (sregion.length < 2)
 138                 return (ISC_R_UNEXPECTEDEND);
 139         RETERR(mem_tobuffer(target, sregion.base, 2));
 140         isc_buffer_forward(source, 2);
 141
 142         /*
 143          * MAP822.
 144          */
 145         RETERR(dns_name_fromwire(&name, source, dctx, options, target));
 146
 147         /*
 148          * MAPX400.
 149          */
 150         return (dns_name_fromwire(&name, source, dctx, options, target));
 151 }
 152
 153 static inline isc_result_t
 154 towire_in_px(ARGS_TOWIRE) {
 155         dns_name_t name;
 156         dns_offsets_t offsets;
 157         isc_region_t region;
 158
 159         REQUIRE(rdata->type == 26);
 160         REQUIRE(rdata->rdclass == 1);
 161         REQUIRE(rdata->length != 0);
 162
 163         dns_compress_setmethods(cctx, DNS_COMPRESS_NONE);
 164         /*
 165          * Preference.
 166          */
 167         dns_rdata_toregion(rdata, &region);
 168         RETERR(mem_tobuffer(target, region.base, 2));
 169         isc_region_consume(&region, 2);
 170
 171         /*
 172          * MAP822.
 173          */
 174         dns_name_init(&name, offsets);
 175         dns_name_fromregion(&name, &region);
 176         RETERR(dns_name_towire(&name, cctx, target));
 177         isc_region_consume(&region, name_length(&name));
 178
 179         /*
 180          * MAPX400.
 181          */
 182         dns_name_init(&name, offsets);
 183         dns_name_fromregion(&name, &region);
 184         return (dns_name_towire(&name, cctx, target));
 185 }
 186
 187 static inline int
 188 compare_in_px(ARGS_COMPARE) {
 189         dns_name_t name1;
 190         dns_name_t name2;
 191         isc_region_t region1;
 192         isc_region_t region2;
 193         int order;
 194
 195         REQUIRE(rdata1->type == rdata2->type);
 196         REQUIRE(rdata1->rdclass == rdata2->rdclass);
 197         REQUIRE(rdata1->type == 26);
 198         REQUIRE(rdata1->rdclass == 1);
 199         REQUIRE(rdata1->length != 0);
 200         REQUIRE(rdata2->length != 0);
 201
 202         order = memcmp(rdata1->data, rdata2->data, 2);
 203         if (order != 0)
 204                 return (order < 0 ? -1 : 1);
 205
 206         dns_name_init(&name1, NULL);
 207         dns_name_init(&name2, NULL);
 208
 209         dns_rdata_toregion(rdata1, &region1);
 210         dns_rdata_toregion(rdata2, &region2);
 211
 212         isc_region_consume(&region1, 2);
 213         isc_region_consume(&region2, 2);
 214
 215         dns_name_fromregion(&name1, &region1);
 216         dns_name_fromregion(&name2, &region2);
 217
 218         order = dns_name_rdatacompare(&name1, &name2);
 219         if (order != 0)
 220                 return (order);
 221
 222         isc_region_consume(&region1, name_length(&name1));
 223         isc_region_consume(&region2, name_length(&name2));
 224
 225         dns_name_fromregion(&name1, &region1);
 226         dns_name_fromregion(&name2, &region2);
 227
 228         return (dns_name_rdatacompare(&name1, &name2));
 229 }
 230
 231 static inline isc_result_t
 232 fromstruct_in_px(ARGS_FROMSTRUCT) {
 233         dns_rdata_in_px_t *px = source;
 234         isc_region_t region;
 235
 236         REQUIRE(type == 26);
 237         REQUIRE(rdclass == 1);
 238         REQUIRE(source != NULL);
 239         REQUIRE(px->common.rdtype == type);
 240         REQUIRE(px->common.rdclass == rdclass);
 241
 242         UNUSED(type);
 243         UNUSED(rdclass);
 244
 245         RETERR(uint16_tobuffer(px->preference, target));
 246         dns_name_toregion(&px->map822, &region);
 247         RETERR(isc_buffer_copyregion(target, &region));
 248         dns_name_toregion(&px->mapx400, &region);
 249         return (isc_buffer_copyregion(target, &region));
 250 }
 251
 252 static inline isc_result_t
 253 tostruct_in_px(ARGS_TOSTRUCT) {
 254         dns_rdata_in_px_t *px = target;
 255         dns_name_t name;
 256         isc_region_t region;
 257         isc_result_t result;
 258
 259         REQUIRE(rdata->type == 26);
 260         REQUIRE(rdata->rdclass == 1);
 261         REQUIRE(target != NULL);
 262         REQUIRE(rdata->length != 0);
 263
 264         px->common.rdclass = rdata->rdclass;
 265         px->common.rdtype = rdata->type;
 266         ISC_LINK_INIT(&px->common, link);
 267
 268         dns_name_init(&name, NULL);
 269         dns_rdata_toregion(rdata, &region);
 270
 271         px->preference = uint16_fromregion(&region);
 272         isc_region_consume(&region, 2);
 273
 274         dns_name_fromregion(&name, &region);
 275
 276         dns_name_init(&px->map822, NULL);
 277         RETERR(name_duporclone(&name, mctx, &px->map822));
 278         isc_region_consume(&region, name_length(&px->map822));
 279
 280         dns_name_init(&px->mapx400, NULL);
 281         result = name_duporclone(&name, mctx, &px->mapx400);
 282         if (result != ISC_R_SUCCESS)
 283                 goto cleanup;
 284
 285         px->mctx = mctx;
 286         return (result);
 287
 288  cleanup:
 289         dns_name_free(&px->map822, mctx);
 290         return (ISC_R_NOMEMORY);
 291 }
 292
 293 static inline void
 294 freestruct_in_px(ARGS_FREESTRUCT) {
 295         dns_rdata_in_px_t *px = source;
 296
 297         REQUIRE(source != NULL);
 298         REQUIRE(px->common.rdclass == 1);
 299         REQUIRE(px->common.rdtype == 26);
 300
 301         if (px->mctx == NULL)
 302                 return;
 303
 304         dns_name_free(&px->map822, px->mctx);
 305         dns_name_free(&px->mapx400, px->mctx);
 306         px->mctx = NULL;
 307 }
 308
 309 static inline isc_result_t
 310 additionaldata_in_px(ARGS_ADDLDATA) {
 311         REQUIRE(rdata->type == 26);
 312         REQUIRE(rdata->rdclass == 1);
 313
 314         UNUSED(rdata);
 315         UNUSED(add);
 316         UNUSED(arg);
 317
 318         return (ISC_R_SUCCESS);
 319 }
 320
 321 static inline isc_result_t
 322 digest_in_px(ARGS_DIGEST) {
 323         isc_region_t r1, r2;
 324         dns_name_t name;
 325         isc_result_t result;
 326
 327         REQUIRE(rdata->type == 26);
 328         REQUIRE(rdata->rdclass == 1);
 329
 330         dns_rdata_toregion(rdata, &r1);
 331         r2 = r1;
 332         isc_region_consume(&r2, 2);
 333         r1.length = 2;
 334         result = (digest)(arg, &r1);
 335         if (result != ISC_R_SUCCESS)
 336                 return (result);
 337         dns_name_init(&name, NULL);
 338         dns_name_fromregion(&name, &r2);
 339         result = dns_name_digest(&name, digest, arg);
 340         if (result != ISC_R_SUCCESS)
 341                 return (result);
 342         isc_region_consume(&r2, name_length(&name));
 343         dns_name_init(&name, NULL);
 344         dns_name_fromregion(&name, &r2);
 345
 346         return (dns_name_digest(&name, digest, arg));
 347 }
 348
 349 static inline isc_boolean_t
 350 checkowner_in_px(ARGS_CHECKOWNER) {
 351
 352         REQUIRE(type == 26);
 353         REQUIRE(rdclass == 1);
 354
 355         UNUSED(name);
 356         UNUSED(type);
 357         UNUSED(rdclass);
 358         UNUSED(wildcard);
 359
 360         return (ISC_TRUE);
 361 }
 362
 363 static inline isc_boolean_t
 364 checknames_in_px(ARGS_CHECKNAMES) {
 365
 366         REQUIRE(rdata->type == 26);
 367         REQUIRE(rdata->rdclass == 1);
 368
 369         UNUSED(rdata);
 370         UNUSED(owner);
 371         UNUSED(bad);
 372
 373         return (ISC_TRUE);
 374 }
 375
 376 static inline int
 377 casecompare_in_px(ARGS_COMPARE) {
 378         return (compare_in_px(rdata1, rdata2));
 379 }
 380
 381 #endif  /* RDATA_IN_1_PX_26_C */