/* $NetBSD: keydata_65533.c,v 1.9 2022/09/23 12:15:31 christos Exp $ */
/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* SPDX-License-Identifier: MPL-2.0
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, you can obtain one at https://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
#ifndef GENERIC_KEYDATA_65533_C
#define GENERIC_KEYDATA_65533_C 1
#include <isc/stdtime.h>
#include <isc/time.h>
#include <dst/dst.h>
#define RRTYPE_KEYDATA_ATTRIBUTES (0)
static isc_result_t
fromtext_keydata(ARGS_FROMTEXT) {
isc_token_t token;
dns_secalg_t alg;
dns_secproto_t proto;
dns_keyflags_t flags;
uint32_t refresh, addhd, removehd;
REQUIRE(type == dns_rdatatype_keydata);
UNUSED(type);
UNUSED(rdclass);
UNUSED(origin);
UNUSED(options);
UNUSED(callbacks);
/* refresh timer */
RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
false));
RETTOK(dns_time32_fromtext(DNS_AS_STR(token), &refresh));
RETERR(uint32_tobuffer(refresh, target));
/* add hold-down */
RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
false));
RETTOK(dns_time32_fromtext(DNS_AS_STR(token), &addhd));
RETERR(uint32_tobuffer(addhd, target));
/* remove hold-down */
RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
false));
RETTOK(dns_time32_fromtext(DNS_AS_STR(token), &removehd));
RETERR(uint32_tobuffer(removehd, target));
/* flags */
RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
false));
RETTOK(dns_keyflags_fromtext(&flags, &token.value.as_textregion));
RETERR(uint16_tobuffer(flags, target));
/* protocol */
RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
false));
RETTOK(dns_secproto_fromtext(&proto, &token.value.as_textregion));
RETERR(mem_tobuffer(target, &proto, 1));
/* algorithm */
RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
false));
RETTOK(dns_secalg_fromtext(&alg, &token.value.as_textregion));
RETERR(mem_tobuffer(target, &alg, 1));
/* Do we have a placeholder KEYDATA record? */
if (flags == 0 && proto == 0 && alg == 0) {
return (ISC_R_SUCCESS);
}
/* No Key? */
if ((flags & 0xc000) == 0xc000) {
return (ISC_R_SUCCESS);
}
return (isc_base64_tobuffer(lexer, target, -2));
}
static isc_result_t
totext_keydata(ARGS_TOTEXT) {
isc_region_t sr;
char buf[sizeof("64000")];
unsigned int flags;
unsigned char proto, algorithm;
unsigned long refresh, add, deltime;
char algbuf[DNS_NAME_FORMATSIZE];
const char *keyinfo;
REQUIRE(rdata->type == dns_rdatatype_keydata);
if ((tctx->flags & DNS_STYLEFLAG_KEYDATA) == 0 || rdata->length < 16) {
return (unknown_totext(rdata, tctx, target));
}
dns_rdata_toregion(rdata, &sr);
/* refresh timer */
refresh = uint32_fromregion(&sr);
isc_region_consume(&sr, 4);
RETERR(dns_time32_totext(refresh, target));
RETERR(str_totext(" ", target));
/* add hold-down */
add = uint32_fromregion(&sr);
isc_region_consume(&sr, 4);
RETERR(dns_time32_totext(add, target));
RETERR(str_totext(" ", target));
/* remove hold-down */
deltime = uint32_fromregion(&sr);
isc_region_consume(&sr, 4);
RETERR(dns_time32_totext(deltime, target));
RETERR(str_totext(" ", target));
/* flags */
flags = uint16_fromregion(&sr);
isc_region_consume(&sr, 2);
snprintf(buf, sizeof(buf), "%u", flags);
RETERR(str_totext(buf, target));
RETERR(str_totext(" ", target));
if ((flags & DNS_KEYFLAG_KSK) != 0) {
if ((flags & DNS_KEYFLAG_REVOKE) != 0) {
keyinfo = "revoked KSK";
} else {
keyinfo = "KSK";
}
} else {
keyinfo = "ZSK";
}
/* protocol */
proto = sr.base[0];
snprintf(buf, sizeof(buf), "%u", proto);
isc_region_consume(&sr, 1);
RETERR(str_totext(buf, target));
RETERR(str_totext(" ", target));
/* algorithm */
algorithm = sr.base[0];
snprintf(buf, sizeof(buf), "%u", algorithm);
isc_region_consume(&sr, 1);
RETERR(str_totext(buf, target));
/* Do we have a placeholder KEYDATA record? */
if (flags == 0 && proto == 0 && algorithm == 0) {
if ((tctx->flags & DNS_STYLEFLAG_RRCOMMENT) != 0) {
RETERR(str_totext(" ; placeholder", target));
}
return (ISC_R_SUCCESS);
}
/* No Key? */
if ((flags & 0xc000) == 0xc000) {
return (ISC_R_SUCCESS);
}
/* key */
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_base64_totext(&sr, 60, "", target));
} else {
RETERR(isc_base64_totext(&sr, tctx->width - 2, tctx->linebreak,
target));
}
if ((tctx->flags & DNS_STYLEFLAG_RRCOMMENT) != 0) {
RETERR(str_totext(tctx->linebreak, target));
} else if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0) {
RETERR(str_totext(" ", target));
}
if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0) {
RETERR(str_totext(")", target));
}
if ((tctx->flags & DNS_STYLEFLAG_RRCOMMENT) != 0) {
isc_region_t tmpr;
char rbuf[ISC_FORMATHTTPTIMESTAMP_SIZE];
char abuf[ISC_FORMATHTTPTIMESTAMP_SIZE];
char dbuf[ISC_FORMATHTTPTIMESTAMP_SIZE];
isc_time_t t;
RETERR(str_totext(" ; ", target));
RETERR(str_totext(keyinfo, target));
dns_secalg_format((dns_secalg_t)algorithm, algbuf,
sizeof(algbuf));
RETERR(str_totext("; alg = ", target));
RETERR(str_totext(algbuf, target));
RETERR(str_totext("; key id = ", target));
dns_rdata_toregion(rdata, &tmpr);
/* Skip over refresh, addhd, and removehd */
isc_region_consume(&tmpr, 12);
snprintf(buf, sizeof(buf), "%u", dst_region_computeid(&tmpr));
RETERR(str_totext(buf, target));
if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0) {
isc_stdtime_t now;
isc_stdtime_get(&now);
RETERR(str_totext(tctx->linebreak, target));
RETERR(str_totext("; next refresh: ", target));
isc_time_set(&t, refresh, 0);
isc_time_formathttptimestamp(&t, rbuf, sizeof(rbuf));
RETERR(str_totext(rbuf, target));
if (add == 0U) {
RETERR(str_totext(tctx->linebreak, target));
RETERR(str_totext("; no trust", target));
} else {
RETERR(str_totext(tctx->linebreak, target));
if (add < now) {
RETERR(str_totext("; trusted since: ",
target));
} else {
RETERR(str_totext("; trust pending: ",
target));
}
isc_time_set(&t, add, 0);
isc_time_formathttptimestamp(&t, abuf,
sizeof(abuf));
RETERR(str_totext(abuf, target));
}
if (deltime != 0U) {
RETERR(str_totext(tctx->linebreak, target));
RETERR(str_totext("; removal pending: ",
target));
isc_time_set(&t, deltime, 0);
isc_time_formathttptimestamp(&t, dbuf,
sizeof(dbuf));
RETERR(str_totext(dbuf, target));
}
}
}
return (ISC_R_SUCCESS);
}
static isc_result_t
fromwire_keydata(ARGS_FROMWIRE) {
isc_region_t sr;
REQUIRE(type == dns_rdatatype_keydata);
UNUSED(type);
UNUSED(rdclass);
UNUSED(dctx);
UNUSED(options);
isc_buffer_activeregion(source, &sr);
isc_buffer_forward(source, sr.length);
return (mem_tobuffer(target, sr.base, sr.length));
}
static isc_result_t
towire_keydata(ARGS_TOWIRE) {
isc_region_t sr;
REQUIRE(rdata->type == dns_rdatatype_keydata);
UNUSED(cctx);
dns_rdata_toregion(rdata, &sr);
return (mem_tobuffer(target, sr.base, sr.length));
}
static int
compare_keydata(ARGS_COMPARE) {
isc_region_t r1;
isc_region_t r2;
REQUIRE(rdata1->type == rdata2->type);
REQUIRE(rdata1->rdclass == rdata2->rdclass);
REQUIRE(rdata1->type == dns_rdatatype_keydata);
dns_rdata_toregion(rdata1, &r1);
dns_rdata_toregion(rdata2, &r2);
return (isc_region_compare(&r1, &r2));
}
static isc_result_t
fromstruct_keydata(ARGS_FROMSTRUCT) {
dns_rdata_keydata_t *keydata = source;
REQUIRE(type == dns_rdatatype_keydata);
REQUIRE(keydata != NULL);
REQUIRE(keydata->common.rdtype == type);
REQUIRE(keydata->common.rdclass == rdclass);
UNUSED(type);
UNUSED(rdclass);
/* Refresh timer */
RETERR(uint32_tobuffer(keydata->refresh, target));
/* Add hold-down */
RETERR(uint32_tobuffer(keydata->addhd, target));
/* Remove hold-down */
RETERR(uint32_tobuffer(keydata->removehd, target));
/* Flags */
RETERR(uint16_tobuffer(keydata->flags, target));
/* Protocol */
RETERR(uint8_tobuffer(keydata->protocol, target));
/* Algorithm */
RETERR(uint8_tobuffer(keydata->algorithm, target));
/* Data */
return (mem_tobuffer(target, keydata->data, keydata->datalen));
}
static isc_result_t
tostruct_keydata(ARGS_TOSTRUCT) {
dns_rdata_keydata_t *keydata = target;
isc_region_t sr;
REQUIRE(rdata->type == dns_rdatatype_keydata);
REQUIRE(keydata != NULL);
keydata->common.rdclass = rdata->rdclass;
keydata->common.rdtype = rdata->type;
ISC_LINK_INIT(&keydata->common, link);
dns_rdata_toregion(rdata, &sr);
/* Refresh timer */
if (sr.length < 4) {
return (ISC_R_UNEXPECTEDEND);
}
keydata->refresh = uint32_fromregion(&sr);
isc_region_consume(&sr, 4);
/* Add hold-down */
if (sr.length < 4) {
return (ISC_R_UNEXPECTEDEND);
}
keydata->addhd = uint32_fromregion(&sr);
isc_region_consume(&sr, 4);
/* Remove hold-down */
if (sr.length < 4) {
return (ISC_R_UNEXPECTEDEND);
}
keydata->removehd = uint32_fromregion(&sr);
isc_region_consume(&sr, 4);
/* Flags */
if (sr.length < 2) {
return (ISC_R_UNEXPECTEDEND);
}
keydata->flags = uint16_fromregion(&sr);
isc_region_consume(&sr, 2);
/* Protocol */
if (sr.length < 1) {
return (ISC_R_UNEXPECTEDEND);
}
keydata->protocol = uint8_fromregion(&sr);
isc_region_consume(&sr, 1);
/* Algorithm */
if (sr.length < 1) {
return (ISC_R_UNEXPECTEDEND);
}
keydata->algorithm = uint8_fromregion(&sr);
isc_region_consume(&sr, 1);
/* Data */
keydata->datalen = sr.length;
keydata->data = mem_maybedup(mctx, sr.base, keydata->datalen);
if (keydata->data == NULL) {
return (ISC_R_NOMEMORY);
}
keydata->mctx = mctx;
return (ISC_R_SUCCESS);
}
static void
freestruct_keydata(ARGS_FREESTRUCT) {
dns_rdata_keydata_t *keydata = (dns_rdata_keydata_t *)source;
REQUIRE(keydata != NULL);
REQUIRE(keydata->common.rdtype == dns_rdatatype_keydata);
if (keydata->mctx == NULL) {
return;
}
if (keydata->data != NULL) {
isc_mem_free(keydata->mctx, keydata->data);
}
keydata->mctx = NULL;
}
static isc_result_t
additionaldata_keydata(ARGS_ADDLDATA) {
REQUIRE(rdata->type == dns_rdatatype_keydata);
UNUSED(rdata);
UNUSED(add);
UNUSED(arg);
return (ISC_R_SUCCESS);
}
static isc_result_t
digest_keydata(ARGS_DIGEST) {
isc_region_t r;
REQUIRE(rdata->type == dns_rdatatype_keydata);
dns_rdata_toregion(rdata, &r);
return ((digest)(arg, &r));
}
static bool
checkowner_keydata(ARGS_CHECKOWNER) {
REQUIRE(type == dns_rdatatype_keydata);
UNUSED(name);
UNUSED(type);
UNUSED(rdclass);
UNUSED(wildcard);
return (true);
}
static bool
checknames_keydata(ARGS_CHECKNAMES) {
REQUIRE(rdata->type == dns_rdatatype_keydata);
UNUSED(rdata);
UNUSED(owner);
UNUSED(bad);
return (true);
}
static int
casecompare_keydata(ARGS_COMPARE) {
return (compare_keydata(rdata1, rdata2));
}
#endif /* GENERIC_KEYDATA_65533_C */