/contrib/bind9/lib/dns/rdata/generic/sig_24.c
https://bitbucket.org/freebsd/freebsd-head/ · C · 582 lines · 321 code · 103 blank · 158 comment · 59 complexity · e072b96291f6fcc384477ac891f5b010 MD5 · raw file
- /*
- * Copyright (C) 2004, 2005, 2007, 2009, 2012 Internet Systems Consortium, Inc. ("ISC")
- * Copyright (C) 1999-2003 Internet Software Consortium.
- *
- * 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.
- */
- /* $Id$ */
- /* Reviewed: Fri Mar 17 09:05:02 PST 2000 by gson */
- /* RFC2535 */
- #ifndef RDATA_GENERIC_SIG_24_C
- #define RDATA_GENERIC_SIG_24_C
- #define RRTYPE_SIG_ATTRIBUTES (0)
- static inline isc_result_t
- fromtext_sig(ARGS_FROMTEXT) {
- isc_token_t token;
- unsigned char c;
- long i;
- dns_rdatatype_t covered;
- char *e;
- isc_result_t result;
- dns_name_t name;
- isc_buffer_t buffer;
- isc_uint32_t time_signed, time_expire;
- REQUIRE(type == 24);
- UNUSED(type);
- UNUSED(rdclass);
- UNUSED(callbacks);
- /*
- * Type covered.
- */
- RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
- ISC_FALSE));
- result = dns_rdatatype_fromtext(&covered, &token.value.as_textregion);
- if (result != ISC_R_SUCCESS && result != ISC_R_NOTIMPLEMENTED) {
- i = strtol(DNS_AS_STR(token), &e, 10);
- if (i < 0 || i > 65535)
- RETTOK(ISC_R_RANGE);
- if (*e != 0)
- RETTOK(result);
- covered = (dns_rdatatype_t)i;
- }
- RETERR(uint16_tobuffer(covered, target));
- /*
- * Algorithm.
- */
- RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
- ISC_FALSE));
- RETTOK(dns_secalg_fromtext(&c, &token.value.as_textregion));
- RETERR(mem_tobuffer(target, &c, 1));
- /*
- * Labels.
- */
- RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
- ISC_FALSE));
- if (token.value.as_ulong > 0xffU)
- RETTOK(ISC_R_RANGE);
- c = (unsigned char)token.value.as_ulong;
- RETERR(mem_tobuffer(target, &c, 1));
- /*
- * Original ttl.
- */
- RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
- ISC_FALSE));
- RETERR(uint32_tobuffer(token.value.as_ulong, target));
- /*
- * Signature expiration.
- */
- RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
- ISC_FALSE));
- RETTOK(dns_time32_fromtext(DNS_AS_STR(token), &time_expire));
- RETERR(uint32_tobuffer(time_expire, target));
- /*
- * Time signed.
- */
- RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
- ISC_FALSE));
- RETTOK(dns_time32_fromtext(DNS_AS_STR(token), &time_signed));
- RETERR(uint32_tobuffer(time_signed, target));
- /*
- * Key footprint.
- */
- RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
- ISC_FALSE));
- RETERR(uint16_tobuffer(token.value.as_ulong, target));
- /*
- * Signer.
- */
- RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
- ISC_FALSE));
- dns_name_init(&name, NULL);
- buffer_fromregion(&buffer, &token.value.as_region);
- origin = (origin != NULL) ? origin : dns_rootname;
- RETTOK(dns_name_fromtext(&name, &buffer, origin, options, target));
- /*
- * Sig.
- */
- return (isc_base64_tobuffer(lexer, target, -1));
- }
- static inline isc_result_t
- totext_sig(ARGS_TOTEXT) {
- isc_region_t sr;
- char buf[sizeof("4294967295")];
- dns_rdatatype_t covered;
- unsigned long ttl;
- unsigned long when;
- unsigned long exp;
- unsigned long foot;
- dns_name_t name;
- dns_name_t prefix;
- isc_boolean_t sub;
- REQUIRE(rdata->type == 24);
- REQUIRE(rdata->length != 0);
- dns_rdata_toregion(rdata, &sr);
- /*
- * Type covered.
- */
- covered = uint16_fromregion(&sr);
- isc_region_consume(&sr, 2);
- /*
- * XXXAG We should have something like dns_rdatatype_isknown()
- * that does the right thing with type 0.
- */
- if (dns_rdatatype_isknown(covered) && covered != 0) {
- RETERR(dns_rdatatype_totext(covered, target));
- } else {
- char buf[sizeof("65535")];
- sprintf(buf, "%u", covered);
- RETERR(str_totext(buf, target));
- }
- RETERR(str_totext(" ", target));
- /*
- * Algorithm.
- */
- sprintf(buf, "%u", sr.base[0]);
- isc_region_consume(&sr, 1);
- RETERR(str_totext(buf, target));
- RETERR(str_totext(" ", target));
- /*
- * Labels.
- */
- sprintf(buf, "%u", sr.base[0]);
- isc_region_consume(&sr, 1);
- RETERR(str_totext(buf, target));
- RETERR(str_totext(" ", target));
- /*
- * Ttl.
- */
- ttl = uint32_fromregion(&sr);
- isc_region_consume(&sr, 4);
- sprintf(buf, "%lu", ttl);
- RETERR(str_totext(buf, target));
- RETERR(str_totext(" ", target));
- /*
- * Sig exp.
- */
- exp = uint32_fromregion(&sr);
- isc_region_consume(&sr, 4);
- RETERR(dns_time32_totext(exp, target));
- if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0)
- RETERR(str_totext(" (", target));
- RETERR(str_totext(tctx->linebreak, target));
- /*
- * Time signed.
- */
- when = uint32_fromregion(&sr);
- isc_region_consume(&sr, 4);
- RETERR(dns_time32_totext(when, target));
- RETERR(str_totext(" ", target));
- /*
- * Footprint.
- */
- foot = uint16_fromregion(&sr);
- isc_region_consume(&sr, 2);
- sprintf(buf, "%lu", foot);
- RETERR(str_totext(buf, target));
- RETERR(str_totext(" ", target));
- /*
- * Signer.
- */
- dns_name_init(&name, NULL);
- dns_name_init(&prefix, NULL);
- dns_name_fromregion(&name, &sr);
- isc_region_consume(&sr, name_length(&name));
- sub = name_prefix(&name, tctx->origin, &prefix);
- RETERR(dns_name_totext(&prefix, sub, target));
- /*
- * Sig.
- */
- RETERR(str_totext(tctx->linebreak, target));
- RETERR(isc_base64_totext(&sr, tctx->width - 2,
- tctx->linebreak, target));
- if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0)
- RETERR(str_totext(" )", target));
- return (ISC_R_SUCCESS);
- }
- static inline isc_result_t
- fromwire_sig(ARGS_FROMWIRE) {
- isc_region_t sr;
- dns_name_t name;
- REQUIRE(type == 24);
- UNUSED(type);
- UNUSED(rdclass);
- dns_decompress_setmethods(dctx, DNS_COMPRESS_NONE);
- isc_buffer_activeregion(source, &sr);
- /*
- * type covered: 2
- * algorithm: 1
- * labels: 1
- * original ttl: 4
- * signature expiration: 4
- * time signed: 4
- * key footprint: 2
- */
- if (sr.length < 18)
- return (ISC_R_UNEXPECTEDEND);
- isc_buffer_forward(source, 18);
- RETERR(mem_tobuffer(target, sr.base, 18));
- /*
- * Signer.
- */
- dns_name_init(&name, NULL);
- RETERR(dns_name_fromwire(&name, source, dctx, options, target));
- /*
- * Sig.
- */
- isc_buffer_activeregion(source, &sr);
- isc_buffer_forward(source, sr.length);
- return (mem_tobuffer(target, sr.base, sr.length));
- }
- static inline isc_result_t
- towire_sig(ARGS_TOWIRE) {
- isc_region_t sr;
- dns_name_t name;
- dns_offsets_t offsets;
- REQUIRE(rdata->type == 24);
- REQUIRE(rdata->length != 0);
- dns_compress_setmethods(cctx, DNS_COMPRESS_NONE);
- dns_rdata_toregion(rdata, &sr);
- /*
- * type covered: 2
- * algorithm: 1
- * labels: 1
- * original ttl: 4
- * signature expiration: 4
- * time signed: 4
- * key footprint: 2
- */
- RETERR(mem_tobuffer(target, sr.base, 18));
- isc_region_consume(&sr, 18);
- /*
- * Signer.
- */
- dns_name_init(&name, offsets);
- dns_name_fromregion(&name, &sr);
- isc_region_consume(&sr, name_length(&name));
- RETERR(dns_name_towire(&name, cctx, target));
- /*
- * Signature.
- */
- return (mem_tobuffer(target, sr.base, sr.length));
- }
- static inline int
- compare_sig(ARGS_COMPARE) {
- isc_region_t r1;
- isc_region_t r2;
- dns_name_t name1;
- dns_name_t name2;
- int order;
- REQUIRE(rdata1->type == rdata2->type);
- REQUIRE(rdata1->rdclass == rdata2->rdclass);
- REQUIRE(rdata1->type == 24);
- REQUIRE(rdata1->length != 0);
- REQUIRE(rdata2->length != 0);
- dns_rdata_toregion(rdata1, &r1);
- dns_rdata_toregion(rdata2, &r2);
- INSIST(r1.length > 18);
- INSIST(r2.length > 18);
- r1.length = 18;
- r2.length = 18;
- order = isc_region_compare(&r1, &r2);
- if (order != 0)
- return (order);
- dns_name_init(&name1, NULL);
- dns_name_init(&name2, NULL);
- dns_rdata_toregion(rdata1, &r1);
- dns_rdata_toregion(rdata2, &r2);
- isc_region_consume(&r1, 18);
- isc_region_consume(&r2, 18);
- dns_name_fromregion(&name1, &r1);
- dns_name_fromregion(&name2, &r2);
- order = dns_name_rdatacompare(&name1, &name2);
- if (order != 0)
- return (order);
- isc_region_consume(&r1, name_length(&name1));
- isc_region_consume(&r2, name_length(&name2));
- return (isc_region_compare(&r1, &r2));
- }
- static inline isc_result_t
- fromstruct_sig(ARGS_FROMSTRUCT) {
- dns_rdata_sig_t *sig = source;
- REQUIRE(type == 24);
- REQUIRE(source != NULL);
- REQUIRE(sig->common.rdtype == type);
- REQUIRE(sig->common.rdclass == rdclass);
- REQUIRE(sig->signature != NULL || sig->siglen == 0);
- UNUSED(type);
- UNUSED(rdclass);
- /*
- * Type covered.
- */
- RETERR(uint16_tobuffer(sig->covered, target));
- /*
- * Algorithm.
- */
- RETERR(uint8_tobuffer(sig->algorithm, target));
- /*
- * Labels.
- */
- RETERR(uint8_tobuffer(sig->labels, target));
- /*
- * Original TTL.
- */
- RETERR(uint32_tobuffer(sig->originalttl, target));
- /*
- * Expire time.
- */
- RETERR(uint32_tobuffer(sig->timeexpire, target));
- /*
- * Time signed.
- */
- RETERR(uint32_tobuffer(sig->timesigned, target));
- /*
- * Key ID.
- */
- RETERR(uint16_tobuffer(sig->keyid, target));
- /*
- * Signer name.
- */
- RETERR(name_tobuffer(&sig->signer, target));
- /*
- * Signature.
- */
- return (mem_tobuffer(target, sig->signature, sig->siglen));
- }
- static inline isc_result_t
- tostruct_sig(ARGS_TOSTRUCT) {
- isc_region_t sr;
- dns_rdata_sig_t *sig = target;
- dns_name_t signer;
- REQUIRE(rdata->type == 24);
- REQUIRE(target != NULL);
- REQUIRE(rdata->length != 0);
- sig->common.rdclass = rdata->rdclass;
- sig->common.rdtype = rdata->type;
- ISC_LINK_INIT(&sig->common, link);
- dns_rdata_toregion(rdata, &sr);
- /*
- * Type covered.
- */
- sig->covered = uint16_fromregion(&sr);
- isc_region_consume(&sr, 2);
- /*
- * Algorithm.
- */
- sig->algorithm = uint8_fromregion(&sr);
- isc_region_consume(&sr, 1);
- /*
- * Labels.
- */
- sig->labels = uint8_fromregion(&sr);
- isc_region_consume(&sr, 1);
- /*
- * Original TTL.
- */
- sig->originalttl = uint32_fromregion(&sr);
- isc_region_consume(&sr, 4);
- /*
- * Expire time.
- */
- sig->timeexpire = uint32_fromregion(&sr);
- isc_region_consume(&sr, 4);
- /*
- * Time signed.
- */
- sig->timesigned = uint32_fromregion(&sr);
- isc_region_consume(&sr, 4);
- /*
- * Key ID.
- */
- sig->keyid = uint16_fromregion(&sr);
- isc_region_consume(&sr, 2);
- dns_name_init(&signer, NULL);
- dns_name_fromregion(&signer, &sr);
- dns_name_init(&sig->signer, NULL);
- RETERR(name_duporclone(&signer, mctx, &sig->signer));
- isc_region_consume(&sr, name_length(&sig->signer));
- /*
- * Signature.
- */
- sig->siglen = sr.length;
- sig->signature = mem_maybedup(mctx, sr.base, sig->siglen);
- if (sig->signature == NULL)
- goto cleanup;
- sig->mctx = mctx;
- return (ISC_R_SUCCESS);
- cleanup:
- if (mctx != NULL)
- dns_name_free(&sig->signer, mctx);
- return (ISC_R_NOMEMORY);
- }
- static inline void
- freestruct_sig(ARGS_FREESTRUCT) {
- dns_rdata_sig_t *sig = (dns_rdata_sig_t *) source;
- REQUIRE(source != NULL);
- REQUIRE(sig->common.rdtype == 24);
- if (sig->mctx == NULL)
- return;
- dns_name_free(&sig->signer, sig->mctx);
- if (sig->signature != NULL)
- isc_mem_free(sig->mctx, sig->signature);
- sig->mctx = NULL;
- }
- static inline isc_result_t
- additionaldata_sig(ARGS_ADDLDATA) {
- REQUIRE(rdata->type == 24);
- UNUSED(rdata);
- UNUSED(add);
- UNUSED(arg);
- return (ISC_R_SUCCESS);
- }
- static inline isc_result_t
- digest_sig(ARGS_DIGEST) {
- REQUIRE(rdata->type == 24);
- UNUSED(rdata);
- UNUSED(digest);
- UNUSED(arg);
- return (ISC_R_NOTIMPLEMENTED);
- }
- static inline dns_rdatatype_t
- covers_sig(dns_rdata_t *rdata) {
- dns_rdatatype_t type;
- isc_region_t r;
- REQUIRE(rdata->type == 24);
- dns_rdata_toregion(rdata, &r);
- type = uint16_fromregion(&r);
- return (type);
- }
- static inline isc_boolean_t
- checkowner_sig(ARGS_CHECKOWNER) {
- REQUIRE(type == 24);
- UNUSED(name);
- UNUSED(type);
- UNUSED(rdclass);
- UNUSED(wildcard);
- return (ISC_TRUE);
- }
- static inline isc_boolean_t
- checknames_sig(ARGS_CHECKNAMES) {
- REQUIRE(rdata->type == 24);
- UNUSED(rdata);
- UNUSED(owner);
- UNUSED(bad);
- return (ISC_TRUE);
- }
- static inline int
- casecompare_sig(ARGS_COMPARE) {
- return (compare_sig(rdata1, rdata2));
- }
- #endif /* RDATA_GENERIC_SIG_24_C */