1 files changed, 1292 insertions, 0 deletions

diff --git a/bin/dnssec/dnssec-keygen.c b/bin/dnssec/dnssec-keygen.c
new file mode 100644
index 0000000..3d77976
--- /dev/null
+++ b/bin/dnssec/dnssec-keygen.c
@@ -0,0 +1,1292 @@
+/*
+ * Portions 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.
+ *
+ * Portions Copyright (C) Network Associates, Inc.
+ *
+ * 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 AND NETWORK ASSOCIATES 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.
+ */
+
+/*! \file */
+
+#include <ctype.h>
+#include <inttypes.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <isc/attributes.h>
+#include <isc/buffer.h>
+#include <isc/commandline.h>
+#include <isc/mem.h>
+#include <isc/print.h>
+#include <isc/region.h>
+#include <isc/result.h>
+#include <isc/string.h>
+#include <isc/util.h>
+
+#include <dns/dnssec.h>
+#include <dns/fixedname.h>
+#include <dns/kasp.h>
+#include <dns/keyvalues.h>
+#include <dns/log.h>
+#include <dns/name.h>
+#include <dns/rdataclass.h>
+#include <dns/secalg.h>
+
+#include <dst/dst.h>
+
+#include <isccfg/cfg.h>
+#include <isccfg/grammar.h>
+#include <isccfg/kaspconf.h>
+#include <isccfg/namedconf.h>
+
+#include "dnssectool.h"
+
+#define MAX_RSA 4096 /* should be long enough... */
+
+const char *program = "dnssec-keygen";
+
+isc_log_t *lctx = NULL;
+
+noreturn static void
+usage(void);
+
+static void
+progress(int p);
+
+struct keygen_ctx {
+	const char *predecessor;
+	const char *policy;
+	const char *configfile;
+	const char *directory;
+	char *algname;
+	char *nametype;
+	char *type;
+	int generator;
+	int protocol;
+	int size;
+	int signatory;
+	dns_rdataclass_t rdclass;
+	int options;
+	int dbits;
+	dns_ttl_t ttl;
+	uint16_t kskflag;
+	uint16_t revflag;
+	dns_secalg_t alg;
+	/* timing data */
+	int prepub;
+	isc_stdtime_t now;
+	isc_stdtime_t publish;
+	isc_stdtime_t activate;
+	isc_stdtime_t inactive;
+	isc_stdtime_t revokekey;
+	isc_stdtime_t deltime;
+	isc_stdtime_t syncadd;
+	isc_stdtime_t syncdel;
+	bool setpub;
+	bool setact;
+	bool setinact;
+	bool setrev;
+	bool setdel;
+	bool setsyncadd;
+	bool setsyncdel;
+	bool unsetpub;
+	bool unsetact;
+	bool unsetinact;
+	bool unsetrev;
+	bool unsetdel;
+	/* how to generate the key */
+	bool setttl;
+	bool use_nsec3;
+	bool genonly;
+	bool showprogress;
+	bool quiet;
+	bool oldstyle;
+	/* state */
+	time_t lifetime;
+	bool ksk;
+	bool zsk;
+};
+
+typedef struct keygen_ctx keygen_ctx_t;
+
+static void
+usage(void) {
+	fprintf(stderr, "Usage:\n");
+	fprintf(stderr, "    %s [options] name\n\n", program);
+	fprintf(stderr, "Version: %s\n", PACKAGE_VERSION);
+	fprintf(stderr, "    name: owner of the key\n");
+	fprintf(stderr, "Options:\n");
+	fprintf(stderr, "    -K <directory>: write keys into directory\n");
+	fprintf(stderr, "    -k <policy>: generate keys for dnssec-policy\n");
+	fprintf(stderr, "    -l <file>: configuration file with dnssec-policy "
+			"statement\n");
+	fprintf(stderr, "    -a <algorithm>:\n");
+	fprintf(stderr, "        RSASHA1 | NSEC3RSASHA1 |\n");
+	fprintf(stderr, "        RSASHA256 | RSASHA512 |\n");
+	fprintf(stderr, "        ECDSAP256SHA256 | ECDSAP384SHA384 |\n");
+	fprintf(stderr, "        ED25519 | ED448 | DH\n");
+	fprintf(stderr, "    -3: use NSEC3-capable algorithm\n");
+	fprintf(stderr, "    -b <key size in bits>:\n");
+	fprintf(stderr, "        RSASHA1:\t[1024..%d]\n", MAX_RSA);
+	fprintf(stderr, "        NSEC3RSASHA1:\t[1024..%d]\n", MAX_RSA);
+	fprintf(stderr, "        RSASHA256:\t[1024..%d]\n", MAX_RSA);
+	fprintf(stderr, "        RSASHA512:\t[1024..%d]\n", MAX_RSA);
+	fprintf(stderr, "        DH:\t\t[128..4096]\n");
+	fprintf(stderr, "        ECDSAP256SHA256:\tignored\n");
+	fprintf(stderr, "        ECDSAP384SHA384:\tignored\n");
+	fprintf(stderr, "        ED25519:\tignored\n");
+	fprintf(stderr, "        ED448:\tignored\n");
+	fprintf(stderr, "        (key size defaults are set according to\n"
+			"        algorithm and usage (ZSK or KSK)\n");
+	fprintf(stderr, "    -n <nametype>: ZONE | HOST | ENTITY | "
+			"USER | OTHER\n");
+	fprintf(stderr, "        (DNSKEY generation defaults to ZONE)\n");
+	fprintf(stderr, "    -c <class>: (default: IN)\n");
+	fprintf(stderr, "    -d <digest bits> (0 => max, default)\n");
+	fprintf(stderr, "    -E <engine>:\n");
+	fprintf(stderr, "        name of an OpenSSL engine to use\n");
+	fprintf(stderr, "    -f <keyflag>: KSK | REVOKE\n");
+	fprintf(stderr, "    -g <generator>: use specified generator "
+			"(DH only)\n");
+	fprintf(stderr, "    -L <ttl>: default key TTL\n");
+	fprintf(stderr, "    -p <protocol>: (default: 3 [dnssec])\n");
+	fprintf(stderr, "    -s <strength>: strength value this key signs DNS "
+			"records with (default: 0)\n");
+	fprintf(stderr, "    -T <rrtype>: DNSKEY | KEY (default: DNSKEY; "
+			"use KEY for SIG(0))\n");
+	fprintf(stderr, "    -t <type>: "
+			"AUTHCONF | NOAUTHCONF | NOAUTH | NOCONF "
+			"(default: AUTHCONF)\n");
+	fprintf(stderr, "    -h: print usage and exit\n");
+	fprintf(stderr, "    -m <memory debugging mode>:\n");
+	fprintf(stderr, "       usage | trace | record | size | mctx\n");
+	fprintf(stderr, "    -v <level>: set verbosity level (0 - 10)\n");
+	fprintf(stderr, "    -V: print version information\n");
+	fprintf(stderr, "Timing options:\n");
+	fprintf(stderr, "    -P date/[+-]offset/none: set key publication date "
+			"(default: now)\n");
+	fprintf(stderr, "    -P sync date/[+-]offset/none: set CDS and CDNSKEY "
+			"publication date\n");
+	fprintf(stderr, "    -A date/[+-]offset/none: set key activation date "
+			"(default: now)\n");
+	fprintf(stderr, "    -R date/[+-]offset/none: set key "
+			"revocation date\n");
+	fprintf(stderr, "    -I date/[+-]offset/none: set key "
+			"inactivation date\n");
+	fprintf(stderr, "    -D date/[+-]offset/none: set key deletion date\n");
+	fprintf(stderr, "    -D sync date/[+-]offset/none: set CDS and CDNSKEY "
+			"deletion date\n");
+
+	fprintf(stderr, "    -G: generate key only; do not set -P or -A\n");
+	fprintf(stderr, "    -C: generate a backward-compatible key, omitting "
+			"all dates\n");
+	fprintf(stderr, "    -S <key>: generate a successor to an existing "
+			"key\n");
+	fprintf(stderr, "    -i <interval>: prepublication interval for "
+			"successor key "
+			"(default: 30 days)\n");
+	fprintf(stderr, "Output:\n");
+	fprintf(stderr, "     K<name>+<alg>+<id>.key, "
+			"K<name>+<alg>+<id>.private\n");
+
+	exit(-1);
+}
+
+static void
+progress(int p) {
+	char c = '*';
+
+	switch (p) {
+	case 0:
+		c = '.';
+		break;
+	case 1:
+		c = '+';
+		break;
+	case 2:
+		c = '*';
+		break;
+	case 3:
+		c = ' ';
+		break;
+	default:
+		break;
+	}
+	(void)putc(c, stderr);
+	(void)fflush(stderr);
+}
+
+static void
+kasp_from_conf(cfg_obj_t *config, isc_mem_t *mctx, const char *name,
+	       dns_kasp_t **kaspp) {
+	const cfg_listelt_t *element;
+	const cfg_obj_t *kasps = NULL;
+	dns_kasp_t *kasp = NULL, *kasp_next;
+	isc_result_t result = ISC_R_NOTFOUND;
+	dns_kasplist_t kasplist;
+
+	ISC_LIST_INIT(kasplist);
+
+	(void)cfg_map_get(config, "dnssec-policy", &kasps);
+	for (element = cfg_list_first(kasps); element != NULL;
+	     element = cfg_list_next(element))
+	{
+		cfg_obj_t *kconfig = cfg_listelt_value(element);
+		kasp = NULL;
+		if (strcmp(cfg_obj_asstring(cfg_tuple_get(kconfig, "name")),
+			   name) != 0)
+		{
+			continue;
+		}
+
+		result = cfg_kasp_fromconfig(kconfig, NULL, mctx, lctx,
+					     &kasplist, &kasp);
+		if (result != ISC_R_SUCCESS) {
+			fatal("failed to configure dnssec-policy '%s': %s",
+			      cfg_obj_asstring(cfg_tuple_get(kconfig, "name")),
+			      isc_result_totext(result));
+		}
+		INSIST(kasp != NULL);
+		dns_kasp_freeze(kasp);
+		break;
+	}
+
+	*kaspp = kasp;
+
+	/*
+	 * Cleanup kasp list.
+	 */
+	for (kasp = ISC_LIST_HEAD(kasplist); kasp != NULL; kasp = kasp_next) {
+		kasp_next = ISC_LIST_NEXT(kasp, link);
+		ISC_LIST_UNLINK(kasplist, kasp, link);
+		dns_kasp_detach(&kasp);
+	}
+}
+
+static void
+keygen(keygen_ctx_t *ctx, isc_mem_t *mctx, int argc, char **argv) {
+	char filename[255];
+	char algstr[DNS_SECALG_FORMATSIZE];
+	uint16_t flags = 0;
+	int param = 0;
+	bool null_key = false;
+	bool conflict = false;
+	bool show_progress = false;
+	isc_buffer_t buf;
+	dns_name_t *name;
+	dns_fixedname_t fname;
+	isc_result_t ret;
+	dst_key_t *key = NULL;
+	dst_key_t *prevkey = NULL;
+
+	UNUSED(argc);
+
+	dns_secalg_format(ctx->alg, algstr, sizeof(algstr));
+
+	if (ctx->predecessor == NULL) {
+		if (ctx->prepub == -1) {
+			ctx->prepub = 0;
+		}
+
+		name = dns_fixedname_initname(&fname);
+		isc_buffer_init(&buf, argv[isc_commandline_index],
+				strlen(argv[isc_commandline_index]));
+		isc_buffer_add(&buf, strlen(argv[isc_commandline_index]));
+		ret = dns_name_fromtext(name, &buf, dns_rootname, 0, NULL);
+		if (ret != ISC_R_SUCCESS) {
+			fatal("invalid key name %s: %s",
+			      argv[isc_commandline_index],
+			      isc_result_totext(ret));
+		}
+
+		if (!dst_algorithm_supported(ctx->alg)) {
+			fatal("unsupported algorithm: %s", algstr);
+		}
+
+		if (ctx->alg == DST_ALG_DH) {
+			ctx->options |= DST_TYPE_KEY;
+		}
+
+		if (ctx->use_nsec3) {
+			switch (ctx->alg) {
+			case DST_ALG_RSASHA1:
+				ctx->alg = DST_ALG_NSEC3RSASHA1;
+				break;
+			case DST_ALG_NSEC3RSASHA1:
+			case DST_ALG_RSASHA256:
+			case DST_ALG_RSASHA512:
+			case DST_ALG_ECDSA256:
+			case DST_ALG_ECDSA384:
+			case DST_ALG_ED25519:
+			case DST_ALG_ED448:
+				break;
+			default:
+				fatal("algorithm %s is incompatible with NSEC3"
+				      ", do not use the -3 option",
+				      algstr);
+			}
+		}
+
+		if (ctx->type != NULL && (ctx->options & DST_TYPE_KEY) != 0) {
+			if (strcasecmp(ctx->type, "NOAUTH") == 0) {
+				flags |= DNS_KEYTYPE_NOAUTH;
+			} else if (strcasecmp(ctx->type, "NOCONF") == 0) {
+				flags |= DNS_KEYTYPE_NOCONF;
+			} else if (strcasecmp(ctx->type, "NOAUTHCONF") == 0) {
+				flags |= (DNS_KEYTYPE_NOAUTH |
+					  DNS_KEYTYPE_NOCONF);
+				if (ctx->size < 0) {
+					ctx->size = 0;
+				}
+			} else if (strcasecmp(ctx->type, "AUTHCONF") == 0) {
+				/* nothing */
+			} else {
+				fatal("invalid type %s", ctx->type);
+			}
+		}
+
+		if (ctx->size < 0) {
+			switch (ctx->alg) {
+			case DST_ALG_RSASHA1:
+			case DST_ALG_NSEC3RSASHA1:
+			case DST_ALG_RSASHA256:
+			case DST_ALG_RSASHA512:
+				ctx->size = 2048;
+				if (verbose > 0) {
+					fprintf(stderr,
+						"key size not "
+						"specified; defaulting"
+						" to %d\n",
+						ctx->size);
+				}
+				break;
+			case DST_ALG_ECDSA256:
+			case DST_ALG_ECDSA384:
+			case DST_ALG_ED25519:
+			case DST_ALG_ED448:
+				break;
+			default:
+				fatal("key size not specified (-b option)");
+			}
+		}
+
+		if (!ctx->oldstyle && ctx->prepub > 0) {
+			if (ctx->setpub && ctx->setact &&
+			    (ctx->activate - ctx->prepub) < ctx->publish)
+			{
+				fatal("Activation and publication dates "
+				      "are closer together than the\n\t"
+				      "prepublication interval.");
+			}
+
+			if (!ctx->setpub && !ctx->setact) {
+				ctx->setpub = ctx->setact = true;
+				ctx->publish = ctx->now;
+				ctx->activate = ctx->now + ctx->prepub;
+			} else if (ctx->setpub && !ctx->setact) {
+				ctx->setact = true;
+				ctx->activate = ctx->publish + ctx->prepub;
+			} else if (ctx->setact && !ctx->setpub) {
+				ctx->setpub = true;
+				ctx->publish = ctx->activate - ctx->prepub;
+			}
+
+			if ((ctx->activate - ctx->prepub) < ctx->now) {
+				fatal("Time until activation is shorter "
+				      "than the\n\tprepublication interval.");
+			}
+		}
+	} else {
+		char keystr[DST_KEY_FORMATSIZE];
+		isc_stdtime_t when;
+		int major, minor;
+
+		if (ctx->prepub == -1) {
+			ctx->prepub = (30 * 86400);
+		}
+
+		if (ctx->alg != 0) {
+			fatal("-S and -a cannot be used together");
+		}
+		if (ctx->size >= 0) {
+			fatal("-S and -b cannot be used together");
+		}
+		if (ctx->nametype != NULL) {
+			fatal("-S and -n cannot be used together");
+		}
+		if (ctx->type != NULL) {
+			fatal("-S and -t cannot be used together");
+		}
+		if (ctx->setpub || ctx->unsetpub) {
+			fatal("-S and -P cannot be used together");
+		}
+		if (ctx->setact || ctx->unsetact) {
+			fatal("-S and -A cannot be used together");
+		}
+		if (ctx->use_nsec3) {
+			fatal("-S and -3 cannot be used together");
+		}
+		if (ctx->oldstyle) {
+			fatal("-S and -C cannot be used together");
+		}
+		if (ctx->genonly) {
+			fatal("-S and -G cannot be used together");
+		}
+
+		ret = dst_key_fromnamedfile(
+			ctx->predecessor, ctx->directory,
+			(DST_TYPE_PUBLIC | DST_TYPE_PRIVATE | DST_TYPE_STATE),
+			mctx, &prevkey);
+		if (ret != ISC_R_SUCCESS) {
+			fatal("Invalid keyfile %s: %s", ctx->predecessor,
+			      isc_result_totext(ret));
+		}
+		if (!dst_key_isprivate(prevkey)) {
+			fatal("%s is not a private key", ctx->predecessor);
+		}
+
+		name = dst_key_name(prevkey);
+		ctx->alg = dst_key_alg(prevkey);
+		ctx->size = dst_key_size(prevkey);
+		flags = dst_key_flags(prevkey);
+
+		dst_key_format(prevkey, keystr, sizeof(keystr));
+		dst_key_getprivateformat(prevkey, &major, &minor);
+		if (major != DST_MAJOR_VERSION || minor < DST_MINOR_VERSION) {
+			fatal("Key %s has incompatible format version %d.%d\n\t"
+			      "It is not possible to generate a successor key.",
+			      keystr, major, minor);
+		}
+
+		ret = dst_key_gettime(prevkey, DST_TIME_ACTIVATE, &when);
+		if (ret != ISC_R_SUCCESS) {
+			fatal("Key %s has no activation date.\n\t"
+			      "You must use dnssec-settime -A to set one "
+			      "before generating a successor.",
+			      keystr);
+		}
+
+		ret = dst_key_gettime(prevkey, DST_TIME_INACTIVE,
+				      &ctx->activate);
+		if (ret != ISC_R_SUCCESS) {
+			fatal("Key %s has no inactivation date.\n\t"
+			      "You must use dnssec-settime -I to set one "
+			      "before generating a successor.",
+			      keystr);
+		}
+
+		ctx->publish = ctx->activate - ctx->prepub;
+		if (ctx->publish < ctx->now) {
+			fatal("Key %s becomes inactive\n\t"
+			      "sooner than the prepublication period "
+			      "for the new key ends.\n\t"
+			      "Either change the inactivation date with "
+			      "dnssec-settime -I,\n\t"
+			      "or use the -i option to set a shorter "
+			      "prepublication interval.",
+			      keystr);
+		}
+
+		ret = dst_key_gettime(prevkey, DST_TIME_DELETE, &when);
+		if (ret != ISC_R_SUCCESS) {
+			fprintf(stderr,
+				"%s: WARNING: Key %s has no removal "
+				"date;\n\t it will remain in the zone "
+				"indefinitely after rollover.\n\t "
+				"You can use dnssec-settime -D to "
+				"change this.\n",
+				program, keystr);
+		}
+
+		ctx->setpub = ctx->setact = true;
+	}
+
+	switch (ctx->alg) {
+	case DNS_KEYALG_RSASHA1:
+	case DNS_KEYALG_NSEC3RSASHA1:
+	case DNS_KEYALG_RSASHA256:
+		if (ctx->size != 0 && (ctx->size < 1024 || ctx->size > MAX_RSA))
+		{
+			fatal("RSA key size %d out of range", ctx->size);
+		}
+		break;
+	case DNS_KEYALG_RSASHA512:
+		if (ctx->size != 0 && (ctx->size < 1024 || ctx->size > MAX_RSA))
+		{
+			fatal("RSA key size %d out of range", ctx->size);
+		}
+		break;
+	case DNS_KEYALG_DH:
+		if (ctx->size != 0 && (ctx->size < 128 || ctx->size > 4096)) {
+			fatal("DH key size %d out of range", ctx->size);
+		}
+		break;
+	case DST_ALG_ECDSA256:
+		ctx->size = 256;
+		break;
+	case DST_ALG_ECDSA384:
+		ctx->size = 384;
+		break;
+	case DST_ALG_ED25519:
+		ctx->size = 256;
+		break;
+	case DST_ALG_ED448:
+		ctx->size = 456;
+		break;
+	}
+
+	if (ctx->alg != DNS_KEYALG_DH && ctx->generator != 0) {
+		fatal("specified DH generator for a non-DH key");
+	}
+
+	if (ctx->nametype == NULL) {
+		if ((ctx->options & DST_TYPE_KEY) != 0) { /* KEY */
+			fatal("no nametype specified");
+		}
+		flags |= DNS_KEYOWNER_ZONE; /* DNSKEY */
+	} else if (strcasecmp(ctx->nametype, "zone") == 0) {
+		flags |= DNS_KEYOWNER_ZONE;
+	} else if ((ctx->options & DST_TYPE_KEY) != 0) { /* KEY */
+		if (strcasecmp(ctx->nametype, "host") == 0 ||
+		    strcasecmp(ctx->nametype, "entity") == 0)
+		{
+			flags |= DNS_KEYOWNER_ENTITY;
+		} else if (strcasecmp(ctx->nametype, "user") == 0) {
+			flags |= DNS_KEYOWNER_USER;
+		} else {
+			fatal("invalid KEY nametype %s", ctx->nametype);
+		}
+	} else if (strcasecmp(ctx->nametype, "other") != 0) { /* DNSKEY */
+		fatal("invalid DNSKEY nametype %s", ctx->nametype);
+	}
+
+	if (ctx->directory == NULL) {
+		ctx->directory = ".";
+	}
+
+	if ((ctx->options & DST_TYPE_KEY) != 0) { /* KEY */
+		flags |= ctx->signatory;
+	} else if ((flags & DNS_KEYOWNER_ZONE) != 0) { /* DNSKEY */
+		flags |= ctx->kskflag;
+		flags |= ctx->revflag;
+	}
+
+	if (ctx->protocol == -1) {
+		ctx->protocol = DNS_KEYPROTO_DNSSEC;
+	} else if ((ctx->options & DST_TYPE_KEY) == 0 &&
+		   ctx->protocol != DNS_KEYPROTO_DNSSEC)
+	{
+		fatal("invalid DNSKEY protocol: %d", ctx->protocol);
+	}
+
+	if ((flags & DNS_KEYFLAG_TYPEMASK) == DNS_KEYTYPE_NOKEY) {
+		if (ctx->size > 0) {
+			fatal("specified null key with non-zero size");
+		}
+		if ((flags & DNS_KEYFLAG_SIGNATORYMASK) != 0) {
+			fatal("specified null key with signing authority");
+		}
+	}
+
+	if ((flags & DNS_KEYFLAG_OWNERMASK) == DNS_KEYOWNER_ZONE &&
+	    ctx->alg == DNS_KEYALG_DH)
+	{
+		fatal("a key with algorithm %s cannot be a zone key", algstr);
+	}
+
+	switch (ctx->alg) {
+	case DNS_KEYALG_RSASHA1:
+	case DNS_KEYALG_NSEC3RSASHA1:
+	case DNS_KEYALG_RSASHA256:
+	case DNS_KEYALG_RSASHA512:
+		show_progress = true;
+		break;
+
+	case DNS_KEYALG_DH:
+		param = ctx->generator;
+		break;
+
+	case DST_ALG_ECDSA256:
+	case DST_ALG_ECDSA384:
+	case DST_ALG_ED25519:
+	case DST_ALG_ED448:
+		show_progress = true;
+		break;
+	}
+
+	if ((flags & DNS_KEYFLAG_TYPEMASK) == DNS_KEYTYPE_NOKEY) {
+		null_key = true;
+	}
+
+	isc_buffer_init(&buf, filename, sizeof(filename) - 1);
+
+	do {
+		conflict = false;
+
+		if (!ctx->quiet && show_progress) {
+			fprintf(stderr, "Generating key pair.");
+			ret = dst_key_generate(name, ctx->alg, ctx->size, param,
+					       flags, ctx->protocol,
+					       ctx->rdclass, mctx, &key,
+					       &progress);
+			putc('\n', stderr);
+			fflush(stderr);
+		} else {
+			ret = dst_key_generate(name, ctx->alg, ctx->size, param,
+					       flags, ctx->protocol,
+					       ctx->rdclass, mctx, &key, NULL);
+		}
+
+		if (ret != ISC_R_SUCCESS) {
+			char namestr[DNS_NAME_FORMATSIZE];
+			dns_name_format(name, namestr, sizeof(namestr));
+			fatal("failed to generate key %s/%s: %s\n", namestr,
+			      algstr, isc_result_totext(ret));
+		}
+
+		dst_key_setbits(key, ctx->dbits);
+
+		/*
+		 * Set key timing metadata (unless using -C)
+		 *
+		 * Creation date is always set to "now".
+		 *
+		 * For a new key without an explicit predecessor, publish
+		 * and activation dates are set to "now" by default, but
+		 * can both be overridden.
+		 *
+		 * For a successor key, activation is set to match the
+		 * predecessor's inactivation date.  Publish is set to 30
+		 * days earlier than that (XXX: this should be configurable).
+		 * If either of the resulting dates are in the past, that's
+		 * an error; the inactivation date of the predecessor key
+		 * must be updated before a successor key can be created.
+		 */
+		if (!ctx->oldstyle) {
+			dst_key_settime(key, DST_TIME_CREATED, ctx->now);
+
+			if (ctx->genonly && (ctx->setpub || ctx->setact)) {
+				fatal("cannot use -G together with "
+				      "-P or -A options");
+			}
+
+			if (ctx->setpub) {
+				dst_key_settime(key, DST_TIME_PUBLISH,
+						ctx->publish);
+			} else if (ctx->setact && !ctx->unsetpub) {
+				dst_key_settime(key, DST_TIME_PUBLISH,
+						ctx->activate - ctx->prepub);
+			} else if (!ctx->genonly && !ctx->unsetpub) {
+				dst_key_settime(key, DST_TIME_PUBLISH,
+						ctx->now);
+			}
+
+			if (ctx->setact) {
+				dst_key_settime(key, DST_TIME_ACTIVATE,
+						ctx->activate);
+			} else if (!ctx->genonly && !ctx->unsetact) {
+				dst_key_settime(key, DST_TIME_ACTIVATE,
+						ctx->now);
+			}
+
+			if (ctx->setrev) {
+				if (ctx->kskflag == 0) {
+					fprintf(stderr,
+						"%s: warning: Key is "
+						"not flagged as a KSK, but -R "
+						"was used. Revoking a ZSK is "
+						"legal, but undefined.\n",
+						program);
+				}
+				dst_key_settime(key, DST_TIME_REVOKE,
+						ctx->revokekey);
+			}
+
+			if (ctx->setinact) {
+				dst_key_settime(key, DST_TIME_INACTIVE,
+						ctx->inactive);
+			}
+
+			if (ctx->setdel) {
+				if (ctx->setinact &&
+				    ctx->deltime < ctx->inactive)
+				{
+					fprintf(stderr,
+						"%s: warning: Key is "
+						"scheduled to be deleted "
+						"before it is scheduled to be "
+						"made inactive.\n",
+						program);
+				}
+				dst_key_settime(key, DST_TIME_DELETE,
+						ctx->deltime);
+			}
+
+			if (ctx->setsyncadd) {
+				dst_key_settime(key, DST_TIME_SYNCPUBLISH,
+						ctx->syncadd);
+			}
+
+			if (ctx->setsyncdel) {
+				dst_key_settime(key, DST_TIME_SYNCDELETE,
+						ctx->syncdel);
+			}
+		} else {
+			if (ctx->setpub || ctx->setact || ctx->setrev ||
+			    ctx->setinact || ctx->setdel || ctx->unsetpub ||
+			    ctx->unsetact || ctx->unsetrev || ctx->unsetinact ||
+			    ctx->unsetdel || ctx->genonly || ctx->setsyncadd ||
+			    ctx->setsyncdel)
+			{
+				fatal("cannot use -C together with "
+				      "-P, -A, -R, -I, -D, or -G options");
+			}
+			/*
+			 * Compatibility mode: Private-key-format
+			 * should be set to 1.2.
+			 */
+			dst_key_setprivateformat(key, 1, 2);
+		}
+
+		/* Set the default key TTL */
+		if (ctx->setttl) {
+			dst_key_setttl(key, ctx->ttl);
+		}
+
+		/* Set dnssec-policy related metadata */
+		if (ctx->policy != NULL) {
+			dst_key_setnum(key, DST_NUM_LIFETIME, ctx->lifetime);
+			dst_key_setbool(key, DST_BOOL_KSK, ctx->ksk);
+			dst_key_setbool(key, DST_BOOL_ZSK, ctx->zsk);
+		}
+
+		/*
+		 * Do not overwrite an existing key, or create a key
+		 * if there is a risk of ID collision due to this key
+		 * or another key being revoked.
+		 */
+		if (key_collision(key, name, ctx->directory, mctx, NULL)) {
+			conflict = true;
+			if (null_key) {
+				dst_key_free(&key);
+				break;
+			}
+
+			if (verbose > 0) {
+				isc_buffer_clear(&buf);
+				ret = dst_key_buildfilename(
+					key, 0, ctx->directory, &buf);
+				if (ret == ISC_R_SUCCESS) {
+					fprintf(stderr,
+						"%s: %s already exists, or "
+						"might collide with another "
+						"key upon revokation.  "
+						"Generating a new key\n",
+						program, filename);
+				}
+			}
+
+			dst_key_free(&key);
+		}
+	} while (conflict);
+
+	if (conflict) {
+		fatal("cannot generate a null key due to possible key ID "
+		      "collision");
+	}
+
+	if (ctx->predecessor != NULL && prevkey != NULL) {
+		dst_key_setnum(prevkey, DST_NUM_SUCCESSOR, dst_key_id(key));
+		dst_key_setnum(key, DST_NUM_PREDECESSOR, dst_key_id(prevkey));
+
+		ret = dst_key_tofile(prevkey, ctx->options, ctx->directory);
+		if (ret != ISC_R_SUCCESS) {
+			char keystr[DST_KEY_FORMATSIZE];
+			dst_key_format(prevkey, keystr, sizeof(keystr));
+			fatal("failed to update predecessor %s: %s\n", keystr,
+			      isc_result_totext(ret));
+		}
+	}
+
+	ret = dst_key_tofile(key, ctx->options, ctx->directory);
+	if (ret != ISC_R_SUCCESS) {
+		char keystr[DST_KEY_FORMATSIZE];
+		dst_key_format(key, keystr, sizeof(keystr));
+		fatal("failed to write key %s: %s\n", keystr,
+		      isc_result_totext(ret));
+	}
+
+	isc_buffer_clear(&buf);
+	ret = dst_key_buildfilename(key, 0, NULL, &buf);
+	if (ret != ISC_R_SUCCESS) {
+		fatal("dst_key_buildfilename returned: %s\n",
+		      isc_result_totext(ret));
+	}
+	printf("%s\n", filename);
+
+	dst_key_free(&key);
+	if (prevkey != NULL) {
+		dst_key_free(&prevkey);
+	}
+}
+
+int
+main(int argc, char **argv) {
+	char *algname = NULL, *freeit = NULL;
+	char *classname = NULL;
+	char *endp;
+	isc_mem_t *mctx = NULL;
+	isc_result_t ret;
+	isc_textregion_t r;
+	const char *engine = NULL;
+	unsigned char c;
+	int ch;
+
+	keygen_ctx_t ctx = {
+		.options = DST_TYPE_PRIVATE | DST_TYPE_PUBLIC,
+		.prepub = -1,
+		.protocol = -1,
+		.size = -1,
+	};
+
+	if (argc == 1) {
+		usage();
+	}
+
+	isc_commandline_errprint = false;
+
+	/*
+	 * Process memory debugging argument first.
+	 */
+#define CMDLINE_FLAGS                                           \
+	"3A:a:b:Cc:D:d:E:eFf:Gg:hI:i:K:k:L:l:m:n:P:p:qR:r:S:s:" \
+	"T:t:v:V"
+	while ((ch = isc_commandline_parse(argc, argv, CMDLINE_FLAGS)) != -1) {
+		switch (ch) {
+		case 'm':
+			if (strcasecmp(isc_commandline_argument, "record") == 0)
+			{
+				isc_mem_debugging |= ISC_MEM_DEBUGRECORD;
+			}
+			if (strcasecmp(isc_commandline_argument, "trace") == 0)
+			{
+				isc_mem_debugging |= ISC_MEM_DEBUGTRACE;
+			}
+			if (strcasecmp(isc_commandline_argument, "usage") == 0)
+			{
+				isc_mem_debugging |= ISC_MEM_DEBUGUSAGE;
+			}
+			break;
+		default:
+			break;
+		}
+	}
+	isc_commandline_reset = true;
+
+	isc_mem_create(&mctx);
+	isc_stdtime_get(&ctx.now);
+
+	while ((ch = isc_commandline_parse(argc, argv, CMDLINE_FLAGS)) != -1) {
+		switch (ch) {
+		case '3':
+			ctx.use_nsec3 = true;
+			break;
+		case 'a':
+			algname = isc_commandline_argument;
+			break;
+		case 'b':
+			ctx.size = strtol(isc_commandline_argument, &endp, 10);
+			if (*endp != '\0' || ctx.size < 0) {
+				fatal("-b requires a non-negative number");
+			}
+			break;
+		case 'C':
+			ctx.oldstyle = true;
+			break;
+		case 'c':
+			classname = isc_commandline_argument;
+			break;
+		case 'd':
+			ctx.dbits = strtol(isc_commandline_argument, &endp, 10);
+			if (*endp != '\0' || ctx.dbits < 0) {
+				fatal("-d requires a non-negative number");
+			}
+			break;
+		case 'E':
+			engine = isc_commandline_argument;
+			break;
+		case 'e':
+			fprintf(stderr, "phased-out option -e "
+					"(was 'use (RSA) large exponent')\n");
+			break;
+		case 'f':
+			c = (unsigned char)(isc_commandline_argument[0]);
+			if (toupper(c) == 'K') {
+				ctx.kskflag = DNS_KEYFLAG_KSK;
+			} else if (toupper(c) == 'R') {
+				ctx.revflag = DNS_KEYFLAG_REVOKE;
+			} else {
+				fatal("unknown flag '%s'",
+				      isc_commandline_argument);
+			}
+			break;
+		case 'g':
+			ctx.generator = strtol(isc_commandline_argument, &endp,
+					       10);
+			if (*endp != '\0' || ctx.generator <= 0) {
+				fatal("-g requires a positive number");
+			}
+			break;
+		case 'K':
+			ctx.directory = isc_commandline_argument;
+			ret = try_dir(ctx.directory);
+			if (ret != ISC_R_SUCCESS) {
+				fatal("cannot open directory %s: %s",
+				      ctx.directory, isc_result_totext(ret));
+			}
+			break;
+		case 'k':
+			ctx.policy = isc_commandline_argument;
+			break;
+		case 'L':
+			ctx.ttl = strtottl(isc_commandline_argument);
+			ctx.setttl = true;
+			break;
+		case 'l':
+			ctx.configfile = isc_commandline_argument;
+			break;
+		case 'n':
+			ctx.nametype = isc_commandline_argument;
+			break;
+		case 'm':
+			break;
+		case 'p':
+			ctx.protocol = strtol(isc_commandline_argument, &endp,
+					      10);
+			if (*endp != '\0' || ctx.protocol < 0 ||
+			    ctx.protocol > 255)
+			{
+				fatal("-p must be followed by a number "
+				      "[0..255]");
+			}
+			break;
+		case 'q':
+			ctx.quiet = true;
+			break;
+		case 'r':
+			fatal("The -r option has been deprecated.\n"
+			      "System random data is always used.\n");
+			break;
+		case 's':
+			ctx.signatory = strtol(isc_commandline_argument, &endp,
+					       10);
+			if (*endp != '\0' || ctx.signatory < 0 ||
+			    ctx.signatory > 15)
+			{
+				fatal("-s must be followed by a number "
+				      "[0..15]");
+			}
+			break;
+		case 'T':
+			if (strcasecmp(isc_commandline_argument, "KEY") == 0) {
+				ctx.options |= DST_TYPE_KEY;
+			} else if (strcasecmp(isc_commandline_argument,
+					      "DNSKE"
+					      "Y") == 0)
+			{
+				/* default behavior */
+			} else {
+				fatal("unknown type '%s'",
+				      isc_commandline_argument);
+			}
+			break;
+		case 't':
+			ctx.type = isc_commandline_argument;
+			break;
+		case 'v':
+			endp = NULL;
+			verbose = strtol(isc_commandline_argument, &endp, 0);
+			if (*endp != '\0') {
+				fatal("-v must be followed by a number");
+			}
+			break;
+		case 'G':
+			ctx.genonly = true;
+			break;
+		case 'P':
+			/* -Psync ? */
+			if (isoptarg("sync", argv, usage)) {
+				if (ctx.setsyncadd) {
+					fatal("-P sync specified more than "
+					      "once");
+				}
+
+				ctx.syncadd = strtotime(
+					isc_commandline_argument, ctx.now,
+					ctx.now, &ctx.setsyncadd);
+				break;
+			}
+			(void)isoptarg("dnskey", argv, usage);
+			if (ctx.setpub || ctx.unsetpub) {
+				fatal("-P specified more than once");
+			}
+
+			ctx.publish = strtotime(isc_commandline_argument,
+						ctx.now, ctx.now, &ctx.setpub);
+			ctx.unsetpub = !ctx.setpub;
+			break;
+		case 'A':
+			if (ctx.setact || ctx.unsetact) {
+				fatal("-A specified more than once");
+			}
+
+			ctx.activate = strtotime(isc_commandline_argument,
+						 ctx.now, ctx.now, &ctx.setact);
+			ctx.unsetact = !ctx.setact;
+			break;
+		case 'R':
+			if (ctx.setrev || ctx.unsetrev) {
+				fatal("-R specified more than once");
+			}
+
+			ctx.revokekey = strtotime(isc_commandline_argument,
+						  ctx.now, ctx.now,
+						  &ctx.setrev);
+			ctx.unsetrev = !ctx.setrev;
+			break;
+		case 'I':
+			if (ctx.setinact || ctx.unsetinact) {
+				fatal("-I specified more than once");
+			}
+
+			ctx.inactive = strtotime(isc_commandline_argument,
+						 ctx.now, ctx.now,
+						 &ctx.setinact);
+			ctx.unsetinact = !ctx.setinact;
+			break;
+		case 'D':
+			/* -Dsync ? */
+			if (isoptarg("sync", argv, usage)) {
+				if (ctx.setsyncdel) {
+					fatal("-D sync specified more than "
+					      "once");
+				}
+
+				ctx.syncdel = strtotime(
+					isc_commandline_argument, ctx.now,
+					ctx.now, &ctx.setsyncdel);
+				break;
+			}
+			(void)isoptarg("dnskey", argv, usage);
+			if (ctx.setdel || ctx.unsetdel) {
+				fatal("-D specified more than once");
+			}
+
+			ctx.deltime = strtotime(isc_commandline_argument,
+						ctx.now, ctx.now, &ctx.setdel);
+			ctx.unsetdel = !ctx.setdel;
+			break;
+		case 'S':
+			ctx.predecessor = isc_commandline_argument;
+			break;
+		case 'i':
+			ctx.prepub = strtottl(isc_commandline_argument);
+			break;
+		case 'F':
+			/* Reserved for FIPS mode */
+			FALLTHROUGH;
+		case '?':
+			if (isc_commandline_option != '?') {
+				fprintf(stderr, "%s: invalid argument -%c\n",
+					program, isc_commandline_option);
+			}
+			FALLTHROUGH;
+		case 'h':
+			/* Does not return. */
+			usage();
+
+		case 'V':
+			/* Does not return. */
+			version(program);
+
+		default:
+			fprintf(stderr, "%s: unhandled option -%c\n", program,
+				isc_commandline_option);
+			exit(1);
+		}
+	}
+
+	if (!isatty(0)) {
+		ctx.quiet = true;
+	}
+
+	ret = dst_lib_init(mctx, engine);
+	if (ret != ISC_R_SUCCESS) {
+		fatal("could not initialize dst: %s", isc_result_totext(ret));
+	}
+
+	setup_logging(mctx, &lctx);
+
+	ctx.rdclass = strtoclass(classname);
+
+	if (ctx.configfile == NULL || ctx.configfile[0] == '\0') {
+		ctx.configfile = NAMED_CONFFILE;
+	}
+
+	if (ctx.predecessor == NULL) {
+		if (argc < isc_commandline_index + 1) {
+			fatal("the key name was not specified");
+		}
+		if (argc > isc_commandline_index + 1) {
+			fatal("extraneous arguments");
+		}
+	}
+
+	if (ctx.predecessor == NULL && ctx.policy == NULL) {
+		if (algname == NULL) {
+			fatal("no algorithm specified");
+		}
+		r.base = algname;
+		r.length = strlen(algname);
+		ret = dns_secalg_fromtext(&ctx.alg, &r);
+		if (ret != ISC_R_SUCCESS) {
+			fatal("unknown algorithm %s", algname);
+		}
+		if (!dst_algorithm_supported(ctx.alg)) {
+			fatal("unsupported algorithm: %s", algname);
+		}
+	}
+
+	if (ctx.policy != NULL) {
+		if (ctx.nametype != NULL) {
+			fatal("-k and -n cannot be used together");
+		}
+		if (ctx.predecessor != NULL) {
+			fatal("-k and -S cannot be used together");
+		}
+		if (ctx.oldstyle) {
+			fatal("-k and -C cannot be used together");
+		}
+		if (ctx.setttl) {
+			fatal("-k and -L cannot be used together");
+		}
+		if (ctx.prepub > 0) {
+			fatal("-k and -i cannot be used together");
+		}
+		if (ctx.size != -1) {
+			fatal("-k and -b cannot be used together");
+		}
+		if (ctx.kskflag || ctx.revflag) {
+			fatal("-k and -f cannot be used together");
+		}
+		if (ctx.options & DST_TYPE_KEY) {
+			fatal("-k and -T KEY cannot be used together");
+		}
+		if (ctx.use_nsec3) {
+			fatal("-k and -3 cannot be used together");
+		}
+
+		ctx.options |= DST_TYPE_STATE;
+
+		if (strcmp(ctx.policy, "default") == 0) {
+			ctx.use_nsec3 = false;
+			ctx.alg = DST_ALG_ECDSA256;
+			ctx.size = 0;
+			ctx.kskflag = DNS_KEYFLAG_KSK;
+			ctx.ttl = 3600;
+			ctx.setttl = true;
+			ctx.ksk = true;
+			ctx.zsk = true;
+			ctx.lifetime = 0;
+
+			keygen(&ctx, mctx, argc, argv);
+		} else {
+			cfg_parser_t *parser = NULL;
+			cfg_obj_t *config = NULL;
+			dns_kasp_t *kasp = NULL;
+			dns_kasp_key_t *kaspkey = NULL;
+
+			RUNTIME_CHECK(cfg_parser_create(mctx, lctx, &parser) ==
+				      ISC_R_SUCCESS);
+			if (cfg_parse_file(parser, ctx.configfile,
+					   &cfg_type_namedconf,
+					   &config) != ISC_R_SUCCESS)
+			{
+				fatal("unable to load dnssec-policy '%s' from "
+				      "'%s'",
+				      ctx.policy, ctx.configfile);
+			}
+
+			kasp_from_conf(config, mctx, ctx.policy, &kasp);
+			if (kasp == NULL) {
+				fatal("failed to load dnssec-policy '%s'",
+				      ctx.policy);
+			}
+			if (ISC_LIST_EMPTY(dns_kasp_keys(kasp))) {
+				fatal("dnssec-policy '%s' has no keys "
+				      "configured",
+				      ctx.policy);
+			}
+
+			ctx.ttl = dns_kasp_dnskeyttl(kasp);
+			ctx.setttl = true;
+
+			kaspkey = ISC_LIST_HEAD(dns_kasp_keys(kasp));
+
+			while (kaspkey != NULL) {
+				ctx.use_nsec3 = false;
+				ctx.alg = dns_kasp_key_algorithm(kaspkey);
+				ctx.size = dns_kasp_key_size(kaspkey);
+				ctx.kskflag = dns_kasp_key_ksk(kaspkey)
+						      ? DNS_KEYFLAG_KSK
+						      : 0;
+				ctx.ksk = dns_kasp_key_ksk(kaspkey);
+				ctx.zsk = dns_kasp_key_zsk(kaspkey);
+				ctx.lifetime = dns_kasp_key_lifetime(kaspkey);
+
+				keygen(&ctx, mctx, argc, argv);
+
+				kaspkey = ISC_LIST_NEXT(kaspkey, link);
+			}
+
+			dns_kasp_detach(&kasp);
+			cfg_obj_destroy(parser, &config);
+			cfg_parser_destroy(&parser);
+		}
+	} else {
+		keygen(&ctx, mctx, argc, argv);
+	}
+
+	cleanup_logging(&lctx);
+	dst_lib_destroy();
+	if (verbose > 10) {
+		isc_mem_stats(mctx, stdout);
+	}
+	isc_mem_destroy(&mctx);
+
+	if (freeit != NULL) {
+		free(freeit);
+	}
+
+	return (0);
+}