/contrib/bind9/lib/dns/rdata/generic/nsec3param_51.c
https://bitbucket.org/freebsd/freebsd-head/ · C · 319 lines · 212 code · 70 blank · 37 comment · 40 complexity · d1590bef6b6ce45c73fa108501926f9f MD5 · raw file
- /*
- * Copyright (C) 2008, 2009 Internet Systems Consortium, Inc. ("ISC")
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
- * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
- * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
- * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
- * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- * PERFORMANCE OF THIS SOFTWARE.
- */
- /* $Id: nsec3param_51.c,v 1.7 2009/12/04 21:09:34 marka Exp $ */
- /*
- * Copyright (C) 2004 Nominet, Ltd.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND NOMINET DISCLAIMS ALL WARRANTIES WITH
- * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
- * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
- * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
- * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- * PERFORMANCE OF THIS SOFTWARE.
- */
- /* RFC 5155 */
- #ifndef RDATA_GENERIC_NSEC3PARAM_51_C
- #define RDATA_GENERIC_NSEC3PARAM_51_C
- #include <isc/iterated_hash.h>
- #include <isc/base32.h>
- #define RRTYPE_NSEC3PARAM_ATTRIBUTES (DNS_RDATATYPEATTR_DNSSEC)
- static inline isc_result_t
- fromtext_nsec3param(ARGS_FROMTEXT) {
- isc_token_t token;
- unsigned int flags = 0;
- unsigned char hashalg;
- REQUIRE(type == 51);
- UNUSED(type);
- UNUSED(rdclass);
- UNUSED(callbacks);
- UNUSED(origin);
- UNUSED(options);
- /* Hash. */
- RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
- ISC_FALSE));
- RETTOK(dns_hashalg_fromtext(&hashalg, &token.value.as_textregion));
- RETERR(uint8_tobuffer(hashalg, target));
- /* Flags. */
- RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
- ISC_FALSE));
- flags = token.value.as_ulong;
- if (flags > 255U)
- RETTOK(ISC_R_RANGE);
- RETERR(uint8_tobuffer(flags, target));
- /* Iterations. */
- RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
- ISC_FALSE));
- if (token.value.as_ulong > 0xffffU)
- RETTOK(ISC_R_RANGE);
- RETERR(uint16_tobuffer(token.value.as_ulong, target));
- /* Salt. */
- RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
- ISC_FALSE));
- if (token.value.as_textregion.length > (255*2))
- RETTOK(DNS_R_TEXTTOOLONG);
- if (strcmp(DNS_AS_STR(token), "-") == 0) {
- RETERR(uint8_tobuffer(0, target));
- } else {
- RETERR(uint8_tobuffer(strlen(DNS_AS_STR(token)) / 2, target));
- RETERR(isc_hex_decodestring(DNS_AS_STR(token), target));
- }
- return (ISC_R_SUCCESS);
- }
- static inline isc_result_t
- totext_nsec3param(ARGS_TOTEXT) {
- isc_region_t sr;
- unsigned int i, j;
- unsigned char hash;
- unsigned char flags;
- char buf[sizeof("65535 ")];
- isc_uint32_t iterations;
- REQUIRE(rdata->type == 51);
- REQUIRE(rdata->length != 0);
- UNUSED(tctx);
- dns_rdata_toregion(rdata, &sr);
- hash = uint8_fromregion(&sr);
- isc_region_consume(&sr, 1);
- flags = uint8_fromregion(&sr);
- isc_region_consume(&sr, 1);
- iterations = uint16_fromregion(&sr);
- isc_region_consume(&sr, 2);
- sprintf(buf, "%u ", hash);
- RETERR(str_totext(buf, target));
- sprintf(buf, "%u ", flags);
- RETERR(str_totext(buf, target));
- sprintf(buf, "%u ", iterations);
- RETERR(str_totext(buf, target));
- j = uint8_fromregion(&sr);
- isc_region_consume(&sr, 1);
- INSIST(j <= sr.length);
- if (j != 0) {
- i = sr.length;
- sr.length = j;
- RETERR(isc_hex_totext(&sr, 1, "", target));
- sr.length = i - j;
- } else
- RETERR(str_totext("-", target));
- return (ISC_R_SUCCESS);
- }
- static inline isc_result_t
- fromwire_nsec3param(ARGS_FROMWIRE) {
- isc_region_t sr, rr;
- unsigned int saltlen;
- REQUIRE(type == 51);
- UNUSED(type);
- UNUSED(rdclass);
- UNUSED(options);
- UNUSED(dctx);
- isc_buffer_activeregion(source, &sr);
- rr = sr;
- /* hash(1), flags(1), iterations(2), saltlen(1) */
- if (sr.length < 5U)
- RETERR(DNS_R_FORMERR);
- saltlen = sr.base[4];
- isc_region_consume(&sr, 5);
- if (sr.length < saltlen)
- RETERR(DNS_R_FORMERR);
- isc_region_consume(&sr, saltlen);
- RETERR(mem_tobuffer(target, rr.base, rr.length));
- isc_buffer_forward(source, rr.length);
- return (ISC_R_SUCCESS);
- }
- static inline isc_result_t
- towire_nsec3param(ARGS_TOWIRE) {
- isc_region_t sr;
- REQUIRE(rdata->type == 51);
- REQUIRE(rdata->length != 0);
- UNUSED(cctx);
- dns_rdata_toregion(rdata, &sr);
- return (mem_tobuffer(target, sr.base, sr.length));
- }
- static inline int
- compare_nsec3param(ARGS_COMPARE) {
- isc_region_t r1;
- isc_region_t r2;
- REQUIRE(rdata1->type == rdata2->type);
- REQUIRE(rdata1->rdclass == rdata2->rdclass);
- REQUIRE(rdata1->type == 51);
- REQUIRE(rdata1->length != 0);
- REQUIRE(rdata2->length != 0);
- dns_rdata_toregion(rdata1, &r1);
- dns_rdata_toregion(rdata2, &r2);
- return (isc_region_compare(&r1, &r2));
- }
- static inline isc_result_t
- fromstruct_nsec3param(ARGS_FROMSTRUCT) {
- dns_rdata_nsec3param_t *nsec3param = source;
- REQUIRE(type == 51);
- REQUIRE(source != NULL);
- REQUIRE(nsec3param->common.rdtype == type);
- REQUIRE(nsec3param->common.rdclass == rdclass);
- UNUSED(type);
- UNUSED(rdclass);
- RETERR(uint8_tobuffer(nsec3param->hash, target));
- RETERR(uint8_tobuffer(nsec3param->flags, target));
- RETERR(uint16_tobuffer(nsec3param->iterations, target));
- RETERR(uint8_tobuffer(nsec3param->salt_length, target));
- RETERR(mem_tobuffer(target, nsec3param->salt,
- nsec3param->salt_length));
- return (ISC_R_SUCCESS);
- }
- static inline isc_result_t
- tostruct_nsec3param(ARGS_TOSTRUCT) {
- isc_region_t region;
- dns_rdata_nsec3param_t *nsec3param = target;
- REQUIRE(rdata->type == 51);
- REQUIRE(target != NULL);
- REQUIRE(rdata->length != 0);
- nsec3param->common.rdclass = rdata->rdclass;
- nsec3param->common.rdtype = rdata->type;
- ISC_LINK_INIT(&nsec3param->common, link);
- region.base = rdata->data;
- region.length = rdata->length;
- nsec3param->hash = uint8_consume_fromregion(®ion);
- nsec3param->flags = uint8_consume_fromregion(®ion);
- nsec3param->iterations = uint16_consume_fromregion(®ion);
- nsec3param->salt_length = uint8_consume_fromregion(®ion);
- nsec3param->salt = mem_maybedup(mctx, region.base,
- nsec3param->salt_length);
- if (nsec3param->salt == NULL)
- return (ISC_R_NOMEMORY);
- isc_region_consume(®ion, nsec3param->salt_length);
- nsec3param->mctx = mctx;
- return (ISC_R_SUCCESS);
- }
- static inline void
- freestruct_nsec3param(ARGS_FREESTRUCT) {
- dns_rdata_nsec3param_t *nsec3param = source;
- REQUIRE(source != NULL);
- REQUIRE(nsec3param->common.rdtype == 51);
- if (nsec3param->mctx == NULL)
- return;
- if (nsec3param->salt != NULL)
- isc_mem_free(nsec3param->mctx, nsec3param->salt);
- nsec3param->mctx = NULL;
- }
- static inline isc_result_t
- additionaldata_nsec3param(ARGS_ADDLDATA) {
- REQUIRE(rdata->type == 51);
- UNUSED(rdata);
- UNUSED(add);
- UNUSED(arg);
- return (ISC_R_SUCCESS);
- }
- static inline isc_result_t
- digest_nsec3param(ARGS_DIGEST) {
- isc_region_t r;
- REQUIRE(rdata->type == 51);
- dns_rdata_toregion(rdata, &r);
- return ((digest)(arg, &r));
- }
- static inline isc_boolean_t
- checkowner_nsec3param(ARGS_CHECKOWNER) {
- REQUIRE(type == 51);
- UNUSED(name);
- UNUSED(type);
- UNUSED(rdclass);
- UNUSED(wildcard);
- return (ISC_TRUE);
- }
- static inline isc_boolean_t
- checknames_nsec3param(ARGS_CHECKNAMES) {
- REQUIRE(rdata->type == 51);
- UNUSED(rdata);
- UNUSED(owner);
- UNUSED(bad);
- return (ISC_TRUE);
- }
- static inline int
- casecompare_nsec3param(ARGS_COMPARE) {
- return (compare_nsec3param(rdata1, rdata2));
- }
- #endif /* RDATA_GENERIC_NSEC3PARAM_51_C */