cert_37.c revision bddfe77128b0f16af263ff149db40f0d885f43d0
/*
* Copyright (C) 1999-2001 Internet Software Consortium.
*
* 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 INTERNET SOFTWARE CONSORTIUM
* DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
* INTERNET SOFTWARE CONSORTIUM 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: cert_37.c,v 1.40 2001/07/16 03:06:01 marka Exp $ */
/* Reviewed: Wed Mar 15 21:14:32 EST 2000 by tale */
/* RFC 2538 */
#ifndef RDATA_GENERIC_CERT_37_C
#define RDATA_GENERIC_CERT_37_C
#define RRTYPE_CERT_ATTRIBUTES (0)
static inline isc_result_t
fromtext_cert(ARGS_FROMTEXT) {
isc_token_t token;
dns_secalg_t secalg;
dns_cert_t cert;
REQUIRE(type == 37);
UNUSED(type);
UNUSED(rdclass);
UNUSED(origin);
UNUSED(downcase);
UNUSED(callbacks);
/*
* Cert type.
*/
RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
ISC_FALSE));
RETTOK(dns_cert_fromtext(&cert, &token.value.as_textregion));
RETERR(uint16_tobuffer(cert, target));
/*
* Key tag.
*/
RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
ISC_FALSE));
if (token.value.as_ulong > 0xffff)
RETTOK(ISC_R_RANGE);
RETERR(uint16_tobuffer(token.value.as_ulong, target));
/*
* Algorithm.
*/
RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
ISC_FALSE));
RETTOK(dns_secalg_fromtext(&secalg, &token.value.as_textregion));
RETERR(mem_tobuffer(target, &secalg, 1));
return (isc_base64_tobuffer(lexer, target, -1));
}
static inline isc_result_t
totext_cert(ARGS_TOTEXT) {
isc_region_t sr;
char buf[sizeof "64000 "];
unsigned int n;
REQUIRE(rdata->type == 37);
REQUIRE(rdata->length != 0);
UNUSED(tctx);
dns_rdata_toregion(rdata, &sr);
/*
* Type.
*/
n = uint16_fromregion(&sr);
isc_region_consume(&sr, 2);
RETERR(dns_cert_totext((dns_cert_t)n, target));
RETERR(str_totext(" ", target));
/*
* Key tag.
*/
n = uint16_fromregion(&sr);
isc_region_consume(&sr, 2);
sprintf(buf, "%u ", n);
RETERR(str_totext(buf, target));
/*
* Algorithm.
*/
RETERR(dns_secalg_totext(sr.base[0], target));
isc_region_consume(&sr, 1);
/*
* Cert.
*/
if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0)
RETERR(str_totext(" (", target));
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_cert(ARGS_FROMWIRE) {
isc_region_t sr;
REQUIRE(type == 37);
UNUSED(type);
UNUSED(rdclass);
UNUSED(dctx);
UNUSED(downcase);
isc_buffer_activeregion(source, &sr);
if (sr.length < 5)
return (ISC_R_UNEXPECTEDEND);
isc_buffer_forward(source, sr.length);
return (mem_tobuffer(target, sr.base, sr.length));
}
static inline isc_result_t
towire_cert(ARGS_TOWIRE) {
isc_region_t sr;
REQUIRE(rdata->type == 37);
REQUIRE(rdata->length != 0);
UNUSED(cctx);
dns_rdata_toregion(rdata, &sr);
return (mem_tobuffer(target, sr.base, sr.length));
}
static inline int
compare_cert(ARGS_COMPARE) {
isc_region_t r1;
isc_region_t r2;
REQUIRE(rdata1->type == rdata2->type);
REQUIRE(rdata1->rdclass == rdata2->rdclass);
REQUIRE(rdata1->type == 37);
REQUIRE(rdata1->length != 0);
REQUIRE(rdata2->length != 0);
dns_rdata_toregion(rdata1, &r1);
dns_rdata_toregion(rdata2, &r2);
return (compare_region(&r1, &r2));
}
static inline isc_result_t
fromstruct_cert(ARGS_FROMSTRUCT) {
dns_rdata_cert_t *cert = source;
REQUIRE(type == 37);
REQUIRE(source != NULL);
REQUIRE(cert->common.rdtype == type);
REQUIRE(cert->common.rdclass == rdclass);
UNUSED(type);
UNUSED(rdclass);
RETERR(uint16_tobuffer(cert->type, target));
RETERR(uint16_tobuffer(cert->key_tag, target));
RETERR(uint8_tobuffer(cert->algorithm, target));
return (mem_tobuffer(target, cert->certificate, cert->length));
}
static inline isc_result_t
tostruct_cert(ARGS_TOSTRUCT) {
dns_rdata_cert_t *cert = target;
isc_region_t region;
REQUIRE(rdata->type == 37);
REQUIRE(target != NULL);
REQUIRE(rdata->length != 0);
cert->common.rdclass = rdata->rdclass;
cert->common.rdtype = rdata->type;
ISC_LINK_INIT(&cert->common, link);
dns_rdata_toregion(rdata, &region);
cert->type = uint16_fromregion(&region);
isc_region_consume(&region, 2);
cert->key_tag = uint16_fromregion(&region);
isc_region_consume(&region, 2);
cert->algorithm = uint8_fromregion(&region);
isc_region_consume(&region, 1);
cert->length = region.length;
cert->certificate = mem_maybedup(mctx, region.base, region.length);
if (cert->certificate == NULL)
return (ISC_R_NOMEMORY);
cert->mctx = mctx;
return (ISC_R_SUCCESS);
}
static inline void
freestruct_cert(ARGS_FREESTRUCT) {
dns_rdata_cert_t *cert = source;
REQUIRE(cert != NULL);
REQUIRE(cert->common.rdtype == 37);
if (cert->mctx == NULL)
return;
if (cert->certificate != NULL)
isc_mem_free(cert->mctx, cert->certificate);
cert->mctx = NULL;
}
static inline isc_result_t
additionaldata_cert(ARGS_ADDLDATA) {
REQUIRE(rdata->type == 37);
UNUSED(rdata);
UNUSED(add);
UNUSED(arg);
return (ISC_R_SUCCESS);
}
static inline isc_result_t
digest_cert(ARGS_DIGEST) {
isc_region_t r;
REQUIRE(rdata->type == 37);
dns_rdata_toregion(rdata, &r);
return ((digest)(arg, &r));
}
#endif /* RDATA_GENERIC_CERT_37_C */