tlsa_52.c revision 393fd55d91306e6def3a3d06748eee031f57bd17
/*
* Copyright (C) 2012 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.
*/
/* $Id$ */
/* draft-ietf-dane-protocol-19.txt */
#ifndef RDATA_GENERIC_TLSA_52_C
#define RDATA_GENERIC_TLSA_52_C
#define RRTYPE_TLSA_ATTRIBUTES 0
static inline isc_result_t
fromtext_tlsa(ARGS_FROMTEXT) {
isc_token_t token;
REQUIRE(type == 52);
UNUSED(type);
UNUSED(rdclass);
UNUSED(origin);
UNUSED(options);
UNUSED(callbacks);
/*
* Certificate Usage.
*/
RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
ISC_FALSE));
if (token.value.as_ulong > 0xffU)
RETTOK(ISC_R_RANGE);
RETERR(uint8_tobuffer(token.value.as_ulong, target));
/*
* Selector.
*/
RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
ISC_FALSE));
if (token.value.as_ulong > 0xffU)
RETTOK(ISC_R_RANGE);
RETERR(uint8_tobuffer(token.value.as_ulong, target));
/*
* Matching type.
*/
RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
ISC_FALSE));
if (token.value.as_ulong > 0xffU)
RETTOK(ISC_R_RANGE);
RETERR(uint8_tobuffer(token.value.as_ulong, target));
/*
* Certificate Association Data.
*/
return (isc_hex_tobuffer(lexer, target, -1));
}
static inline isc_result_t
totext_tlsa(ARGS_TOTEXT) {
isc_region_t sr;
char buf[sizeof("64000 ")];
unsigned int n;
REQUIRE(rdata->type == 52);
REQUIRE(rdata->length != 0);
UNUSED(tctx);
dns_rdata_toregion(rdata, &sr);
/*
* Certificate Usage.
*/
n = uint8_fromregion(&sr);
isc_region_consume(&sr, 1);
sprintf(buf, "%u ", n);
RETERR(str_totext(buf, target));
/*
* Selector.
*/
n = uint8_fromregion(&sr);
isc_region_consume(&sr, 1);
sprintf(buf, "%u ", n);
RETERR(str_totext(buf, target));
/*
* Matching type.
*/
n = uint8_fromregion(&sr);
isc_region_consume(&sr, 1);
sprintf(buf, "%u", n);
RETERR(str_totext(buf, target));
/*
* Certificate Association Data.
*/
if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0)
RETERR(str_totext(" (", target));
RETERR(str_totext(tctx->linebreak, target));
if (tctx->width == 0) /* No splitting */
RETERR(isc_hex_totext(&sr, 0, "", target));
else
RETERR(isc_hex_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_tlsa(ARGS_FROMWIRE) {
isc_region_t sr;
REQUIRE(type == 52);
UNUSED(type);
UNUSED(rdclass);
UNUSED(dctx);
UNUSED(options);
isc_buffer_activeregion(source, &sr);
if (sr.length < 3)
return (ISC_R_UNEXPECTEDEND);
isc_buffer_forward(source, sr.length);
return (mem_tobuffer(target, sr.base, sr.length));
}
static inline isc_result_t
towire_tlsa(ARGS_TOWIRE) {
isc_region_t sr;
REQUIRE(rdata->type == 52);
REQUIRE(rdata->length != 0);
UNUSED(cctx);
dns_rdata_toregion(rdata, &sr);
return (mem_tobuffer(target, sr.base, sr.length));
}
static inline int
compare_tlsa(ARGS_COMPARE) {
isc_region_t r1;
isc_region_t r2;
REQUIRE(rdata1->type == rdata2->type);
REQUIRE(rdata1->rdclass == rdata2->rdclass);
REQUIRE(rdata1->type == 52);
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_tlsa(ARGS_FROMSTRUCT) {
dns_rdata_tlsa_t *tlsa = source;
REQUIRE(type == 52);
REQUIRE(source != NULL);
REQUIRE(tlsa->common.rdtype == type);
REQUIRE(tlsa->common.rdclass == rdclass);
UNUSED(type);
UNUSED(rdclass);
RETERR(uint8_tobuffer(tlsa->usage, target));
RETERR(uint8_tobuffer(tlsa->selector, target));
RETERR(uint8_tobuffer(tlsa->match, target));
return (mem_tobuffer(target, tlsa->data, tlsa->length));
}
static inline isc_result_t
tostruct_tlsa(ARGS_TOSTRUCT) {
dns_rdata_tlsa_t *tlsa = target;
isc_region_t region;
REQUIRE(rdata->type == 52);
REQUIRE(target != NULL);
REQUIRE(rdata->length != 0);
tlsa->common.rdclass = rdata->rdclass;
tlsa->common.rdtype = rdata->type;
ISC_LINK_INIT(&tlsa->common, link);
dns_rdata_toregion(rdata, &region);
tlsa->usage = uint8_fromregion(&region);
isc_region_consume(&region, 1);
tlsa->selector = uint8_fromregion(&region);
isc_region_consume(&region, 1);
tlsa->match = uint8_fromregion(&region);
isc_region_consume(&region, 1);
tlsa->length = region.length;
tlsa->data = mem_maybedup(mctx, region.base, region.length);
if (tlsa->data == NULL)
return (ISC_R_NOMEMORY);
tlsa->mctx = mctx;
return (ISC_R_SUCCESS);
}
static inline void
freestruct_tlsa(ARGS_FREESTRUCT) {
dns_rdata_tlsa_t *tlsa = source;
REQUIRE(tlsa != NULL);
REQUIRE(tlsa->common.rdtype == 52);
if (tlsa->mctx == NULL)
return;
if (tlsa->data != NULL)
isc_mem_free(tlsa->mctx, tlsa->data);
tlsa->mctx = NULL;
}
static inline isc_result_t
additionaldata_tlsa(ARGS_ADDLDATA) {
REQUIRE(rdata->type == 52);
UNUSED(rdata);
UNUSED(add);
UNUSED(arg);
return (ISC_R_SUCCESS);
}
static inline isc_result_t
digest_tlsa(ARGS_DIGEST) {
isc_region_t r;
REQUIRE(rdata->type == 52);
dns_rdata_toregion(rdata, &r);
return ((digest)(arg, &r));
}
static inline isc_boolean_t
checkowner_tlsa(ARGS_CHECKOWNER) {
REQUIRE(type == 52);
UNUSED(name);
UNUSED(type);
UNUSED(rdclass);
UNUSED(wildcard);
return (ISC_TRUE);
}
static inline isc_boolean_t
checknames_tlsa(ARGS_CHECKNAMES) {
REQUIRE(rdata->type == 52);
UNUSED(rdata);
UNUSED(owner);
UNUSED(bad);
return (ISC_TRUE);
}
static inline int
casecompare_tlsa(ARGS_COMPARE) {
return (compare_tlsa(rdata1, rdata2));
}
#endif /* RDATA_GENERIC_TLSA_52_C */