/* $NetBSD: dnssec-settime.c,v 1.3 2019/01/09 16:54:59 christos Exp $ */
/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* 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 http://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
/*! \file */
#include <config.h>
#include <inttypes.h>
#include <stdbool.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <time.h>
#include <isc/buffer.h>
#include <isc/commandline.h>
#include <isc/file.h>
#include <isc/hash.h>
#include <isc/mem.h>
#include <isc/print.h>
#include <isc/string.h>
#include <isc/util.h>
#include <dns/keyvalues.h>
#include <dns/result.h>
#include <dns/log.h>
#include <dst/dst.h>
#if USE_PKCS11
#include <pk11/result.h>
#endif
#include "dnssectool.h"
const char *program = "dnssec-settime";
int verbose;
static isc_mem_t *mctx = NULL;
ISC_PLATFORM_NORETURN_PRE static void
usage(void) ISC_PLATFORM_NORETURN_POST;
static void
usage(void) {
fprintf(stderr, "Usage:\n");
fprintf(stderr, " %s [options] keyfile\n\n", program);
fprintf(stderr, "Version: %s\n", VERSION);
fprintf(stderr, "General options:\n");
#if USE_PKCS11
fprintf(stderr, " -E engine: specify PKCS#11 provider "
"(default: %s)\n", PK11_LIB_LOCATION);
#elif defined(USE_PKCS11)
fprintf(stderr, " -E engine: specify OpenSSL engine "
"(default \"pkcs11\")\n");
#else
fprintf(stderr, " -E engine: specify OpenSSL engine\n");
#endif
fprintf(stderr, " -f: force update of old-style "
"keys\n");
fprintf(stderr, " -K directory: set key file location\n");
fprintf(stderr, " -L ttl: set default key TTL\n");
fprintf(stderr, " -v level: set level of verbosity\n");
fprintf(stderr, " -V: print version information\n");
fprintf(stderr, " -h: help\n");
fprintf(stderr, "Timing options:\n");
fprintf(stderr, " -P date/[+-]offset/none: set/unset key "
"publication date\n");
fprintf(stderr, " -P sync date/[+-]offset/none: set/unset "
"CDS and CDNSKEY publication date\n");
fprintf(stderr, " -A date/[+-]offset/none: set/unset key "
"activation date\n");
fprintf(stderr, " -R date/[+-]offset/none: set/unset key "
"revocation date\n");
fprintf(stderr, " -I date/[+-]offset/none: set/unset key "
"inactivation date\n");
fprintf(stderr, " -D date/[+-]offset/none: set/unset key "
"deletion date\n");
fprintf(stderr, " -D sync date/[+-]offset/none: set/unset "
"CDS and CDNSKEY deletion date\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, "Printing options:\n");
fprintf(stderr, " -p C/P/Psync/A/R/I/D/Dsync/all: print a "
"particular time value or values\n");
fprintf(stderr, " -u: print times in unix epoch "
"format\n");
fprintf(stderr, "Output:\n");
fprintf(stderr, " K<name>+<alg>+<new id>.key, "
"K<name>+<alg>+<new id>.private\n");
exit (-1);
}
static void
printtime(dst_key_t *key, int type, const char *tag, bool epoch,
FILE *stream)
{
isc_result_t result;
const char *output = NULL;
isc_stdtime_t when;
if (tag != NULL)
fprintf(stream, "%s: ", tag);
result = dst_key_gettime(key, type, &when);
if (result == ISC_R_NOTFOUND) {
fprintf(stream, "UNSET\n");
} else if (epoch) {
fprintf(stream, "%d\n", (int) when);
} else {
time_t timet = when;
output = ctime(&timet);
fprintf(stream, "%s", output);
}
}
int
main(int argc, char **argv) {
isc_result_t result;
const char *engine = NULL;
const char *filename = NULL;
char *directory = NULL;
char newname[1024];
char keystr[DST_KEY_FORMATSIZE];
char *endp, *p;
int ch;
const char *predecessor = NULL;
dst_key_t *prevkey = NULL;
dst_key_t *key = NULL;
isc_buffer_t buf;
dns_name_t *name = NULL;
dns_secalg_t alg = 0;
unsigned int size = 0;
uint16_t flags = 0;
int prepub = -1;
dns_ttl_t ttl = 0;
isc_stdtime_t now;
isc_stdtime_t pub = 0, act = 0, rev = 0, inact = 0, del = 0;
isc_stdtime_t prevact = 0, previnact = 0, prevdel = 0;
bool setpub = false, setact = false;
bool setrev = false, setinact = false;
bool setdel = false, setttl = false;
bool unsetpub = false, unsetact = false;
bool unsetrev = false, unsetinact = false;
bool unsetdel = false;
bool printcreate = false, printpub = false;
bool printact = false, printrev = false;
bool printinact = false, printdel = false;
bool force = false;
bool epoch = false;
bool changed = false;
isc_log_t *log = NULL;
isc_stdtime_t syncadd = 0, syncdel = 0;
bool unsetsyncadd = false, setsyncadd = false;
bool unsetsyncdel = false, setsyncdel = false;
bool printsyncadd = false, printsyncdel = false;
if (argc == 1)
usage();
result = isc_mem_create(0, 0, &mctx);
if (result != ISC_R_SUCCESS)
fatal("Out of memory");
setup_logging(mctx, &log);
#if USE_PKCS11
pk11_result_register();
#endif
dns_result_register();
isc_commandline_errprint = false;
isc_stdtime_get(&now);
#define CMDLINE_FLAGS "A:D:E:fhI:i:K:L:P:p:R:S:uv:V"
while ((ch = isc_commandline_parse(argc, argv, CMDLINE_FLAGS)) != -1) {
switch (ch) {
case 'E':
engine = isc_commandline_argument;
break;
case 'f':
force = true;
break;
case 'p':
p = isc_commandline_argument;
if (!strcasecmp(p, "all")) {
printcreate = true;
printpub = true;
printact = true;
printrev = true;
printinact = true;
printdel = true;
printsyncadd = true;
printsyncdel = true;
break;
}
do {
switch (*p++) {
case 'C':
printcreate = true;
break;
case 'P':
if (!strncmp(p, "sync", 4)) {
p += 4;
printsyncadd = true;
break;
}
printpub = true;
break;
case 'A':
printact = true;
break;
case 'R':
printrev = true;
break;
case 'I':
printinact = true;
break;
case 'D':
if (!strncmp(p, "sync", 4)) {
p += 4;
printsyncdel = true;
break;
}
printdel = true;
break;
case ' ':
break;
default:
usage();
break;
}
} while (*p != '\0');
break;
case 'u':
epoch = true;
break;
case 'K':
/*
* We don't have to copy it here, but do it to
* simplify cleanup later
*/
directory = isc_mem_strdup(mctx,
isc_commandline_argument);
if (directory == NULL) {
fatal("Failed to allocate memory for "
"directory");
}
break;
case 'L':
ttl = strtottl(isc_commandline_argument);
setttl = true;
break;
case 'v':
verbose = strtol(isc_commandline_argument, &endp, 0);
if (*endp != '\0')
fatal("-v must be followed by a number");
break;
case 'P':
/* -Psync ? */
if (isoptarg("sync", argv, usage)) {
if (unsetsyncadd || setsyncadd)
fatal("-P sync specified more than "
"once");
changed = true;
syncadd = strtotime(isc_commandline_argument,
now, now, &setsyncadd);
unsetsyncadd = !setsyncadd;
break;
}
(void)isoptarg("dnskey", argv, usage);
if (setpub || unsetpub)
fatal("-P specified more than once");
changed = true;
pub = strtotime(isc_commandline_argument,
now, now, &setpub);
unsetpub = !setpub;
break;
case 'A':
if (setact || unsetact)
fatal("-A specified more than once");
changed = true;
act = strtotime(isc_commandline_argument,
now, now, &setact);
unsetact = !setact;
break;
case 'R':
if (setrev || unsetrev)
fatal("-R specified more than once");
changed = true;
rev = strtotime(isc_commandline_argument,
now, now, &setrev);
unsetrev = !setrev;
break;
case 'I':
if (setinact || unsetinact)
fatal("-I specified more than once");
changed = true;
inact = strtotime(isc_commandline_argument,
now, now, &setinact);
unsetinact = !setinact;
break;
case 'D':
/* -Dsync ? */
if (isoptarg("sync", argv, usage)) {
if (unsetsyncdel || setsyncdel)
fatal("-D sync specified more than "
"once");
changed = true;
syncdel = strtotime(isc_commandline_argument,
now, now, &setsyncdel);
unsetsyncdel = !setsyncdel;
break;
}
/* -Ddnskey ? */
(void)isoptarg("dnskey", argv, usage);
if (setdel || unsetdel)
fatal("-D specified more than once");
changed = true;
del = strtotime(isc_commandline_argument,
now, now, &setdel);
unsetdel = !setdel;
break;
case 'S':
predecessor = isc_commandline_argument;
break;
case 'i':
prepub = strtottl(isc_commandline_argument);
break;
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 (argc < isc_commandline_index + 1 ||
argv[isc_commandline_index] == NULL)
fatal("The key file name was not specified");
if (argc > isc_commandline_index + 1)
fatal("Extraneous arguments");
result = dst_lib_init(mctx, engine);
if (result != ISC_R_SUCCESS)
fatal("Could not initialize dst: %s",
isc_result_totext(result));
if (predecessor != NULL) {
int major, minor;
if (prepub == -1)
prepub = (30 * 86400);
if (setpub || unsetpub)
fatal("-S and -P cannot be used together");
if (setact || unsetact)
fatal("-S and -A cannot be used together");
result = dst_key_fromnamedfile(predecessor, directory,
DST_TYPE_PUBLIC |
DST_TYPE_PRIVATE,
mctx, &prevkey);
if (result != ISC_R_SUCCESS)
fatal("Invalid keyfile %s: %s",
filename, isc_result_totext(result));
if (!dst_key_isprivate(prevkey) && !dst_key_isexternal(prevkey))
fatal("%s is not a private key", filename);
name = dst_key_name(prevkey);
alg = dst_key_alg(prevkey);
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("Predecessor has incompatible format "
"version %d.%d\n\t", major, minor);
result = dst_key_gettime(prevkey, DST_TIME_ACTIVATE, &prevact);
if (result != ISC_R_SUCCESS)
fatal("Predecessor has no activation date. "
"You must set one before\n\t"
"generating a successor.");
result = dst_key_gettime(prevkey, DST_TIME_INACTIVE,
&previnact);
if (result != ISC_R_SUCCESS)
fatal("Predecessor has no inactivation date. "
"You must set one before\n\t"
"generating a successor.");
pub = previnact - prepub;
act = previnact;
if ((previnact - prepub) < now && prepub != 0)
fatal("Time until predecessor inactivation is\n\t"
"shorter than the prepublication interval. "
"Either change\n\t"
"predecessor inactivation date, or use the -i "
"option to set\n\t"
"a shorter prepublication interval.");
result = dst_key_gettime(prevkey, DST_TIME_DELETE, &prevdel);
if (result != ISC_R_SUCCESS)
fprintf(stderr, "%s: warning: Predecessor has no "
"removal date;\n\t"
"it will remain in the zone "
"indefinitely after rollover.\n",
program);
else if (prevdel < previnact)
fprintf(stderr, "%s: warning: Predecessor is "
"scheduled to be deleted\n\t"
"before it is scheduled to be "
"inactive.\n", program);
changed = setpub = setact = true;
} else {
if (prepub < 0)
prepub = 0;
if (prepub > 0) {
if (setpub && setact && (act - prepub) < pub)
fatal("Activation and publication dates "
"are closer together than the\n\t"
"prepublication interval.");
if (setpub && !setact) {
setact = true;
act = pub + prepub;
} else if (setact && !setpub) {
setpub = true;
pub = act - prepub;
}
if ((act - prepub) < now)
fatal("Time until activation is shorter "
"than the\n\tprepublication interval.");
}
}
if (directory != NULL) {
filename = argv[isc_commandline_index];
} else {
result = isc_file_splitpath(mctx, argv[isc_commandline_index],
&directory, &filename);
if (result != ISC_R_SUCCESS)
fatal("cannot process filename %s: %s",
argv[isc_commandline_index],
isc_result_totext(result));
}
result = dst_key_fromnamedfile(filename, directory,
DST_TYPE_PUBLIC | DST_TYPE_PRIVATE,
mctx, &key);
if (result != ISC_R_SUCCESS)
fatal("Invalid keyfile %s: %s",
filename, isc_result_totext(result));
if (!dst_key_isprivate(key) && !dst_key_isexternal(key))
fatal("%s is not a private key", filename);
dst_key_format(key, keystr, sizeof(keystr));
if (predecessor != NULL) {
if (!dns_name_equal(name, dst_key_name(key)))
fatal("Key name mismatch");
if (alg != dst_key_alg(key))
fatal("Key algorithm mismatch");
if (size != dst_key_size(key))
fatal("Key size mismatch");
if (flags != dst_key_flags(key))
fatal("Key flags mismatch");
}
prevdel = previnact = 0;
if ((setdel && setinact && del < inact) ||
(dst_key_gettime(key, DST_TIME_INACTIVE,
&previnact) == ISC_R_SUCCESS &&
setdel && !setinact && !unsetinact && del < previnact) ||
(dst_key_gettime(key, DST_TIME_DELETE,
&prevdel) == ISC_R_SUCCESS &&
setinact && !setdel && !unsetdel && prevdel < inact) ||
(!setdel && !unsetdel && !setinact && !unsetinact &&
prevdel != 0 && prevdel < previnact))
fprintf(stderr, "%s: warning: Key is scheduled to "
"be deleted before it is\n\t"
"scheduled to be inactive.\n",
program);
if (force)
set_keyversion(key);
else
check_keyversion(key, keystr);
if (verbose > 2)
fprintf(stderr, "%s: %s\n", program, keystr);
/*
* Set time values.
*/
if (setpub)
dst_key_settime(key, DST_TIME_PUBLISH, pub);
else if (unsetpub)
dst_key_unsettime(key, DST_TIME_PUBLISH);
if (setact)
dst_key_settime(key, DST_TIME_ACTIVATE, act);
else if (unsetact)
dst_key_unsettime(key, DST_TIME_ACTIVATE);
if (setrev) {
if ((dst_key_flags(key) & DNS_KEYFLAG_REVOKE) != 0)
fprintf(stderr, "%s: warning: Key %s is already "
"revoked; changing the revocation date "
"will not affect this.\n",
program, keystr);
if ((dst_key_flags(key) & DNS_KEYFLAG_KSK) == 0)
fprintf(stderr, "%s: warning: Key %s is not flagged as "
"a KSK, but -R was used. Revoking a "
"ZSK is legal, but undefined.\n",
program, keystr);
dst_key_settime(key, DST_TIME_REVOKE, rev);
} else if (unsetrev) {
if ((dst_key_flags(key) & DNS_KEYFLAG_REVOKE) != 0)
fprintf(stderr, "%s: warning: Key %s is already "
"revoked; removing the revocation date "
"will not affect this.\n",
program, keystr);
dst_key_unsettime(key, DST_TIME_REVOKE);
}
if (setinact)
dst_key_settime(key, DST_TIME_INACTIVE, inact);
else if (unsetinact)
dst_key_unsettime(key, DST_TIME_INACTIVE);
if (setdel)
dst_key_settime(key, DST_TIME_DELETE, del);
else if (unsetdel)
dst_key_unsettime(key, DST_TIME_DELETE);
if (setsyncadd)
dst_key_settime(key, DST_TIME_SYNCPUBLISH, syncadd);
else if (unsetsyncadd)
dst_key_unsettime(key, DST_TIME_SYNCPUBLISH);
if (setsyncdel)
dst_key_settime(key, DST_TIME_SYNCDELETE, syncdel);
else if (unsetsyncdel)
dst_key_unsettime(key, DST_TIME_SYNCDELETE);
if (setttl)
dst_key_setttl(key, ttl);
/*
* No metadata changes were made but we're forcing an upgrade
* to the new format anyway: use "-P now -A now" as the default
*/
if (force && !changed) {
dst_key_settime(key, DST_TIME_PUBLISH, now);
dst_key_settime(key, DST_TIME_ACTIVATE, now);
changed = true;
}
if (!changed && setttl)
changed = true;
/*
* Print out time values, if -p was used.
*/
if (printcreate)
printtime(key, DST_TIME_CREATED, "Created", epoch, stdout);
if (printpub)
printtime(key, DST_TIME_PUBLISH, "Publish", epoch, stdout);
if (printact)
printtime(key, DST_TIME_ACTIVATE, "Activate", epoch, stdout);
if (printrev)
printtime(key, DST_TIME_REVOKE, "Revoke", epoch, stdout);
if (printinact)
printtime(key, DST_TIME_INACTIVE, "Inactive", epoch, stdout);
if (printdel)
printtime(key, DST_TIME_DELETE, "Delete", epoch, stdout);
if (printsyncadd)
printtime(key, DST_TIME_SYNCPUBLISH, "SYNC Publish",
epoch, stdout);
if (printsyncdel)
printtime(key, DST_TIME_SYNCDELETE, "SYNC Delete",
epoch, stdout);
if (changed) {
isc_buffer_init(&buf, newname, sizeof(newname));
result = dst_key_buildfilename(key, DST_TYPE_PUBLIC, directory,
&buf);
if (result != ISC_R_SUCCESS) {
fatal("Failed to build public key filename: %s",
isc_result_totext(result));
}
result = dst_key_tofile(key, DST_TYPE_PUBLIC|DST_TYPE_PRIVATE,
directory);
if (result != ISC_R_SUCCESS) {
dst_key_format(key, keystr, sizeof(keystr));
fatal("Failed to write key %s: %s", keystr,
isc_result_totext(result));
}
printf("%s\n", newname);
isc_buffer_clear(&buf);
result = dst_key_buildfilename(key, DST_TYPE_PRIVATE, directory,
&buf);
if (result != ISC_R_SUCCESS) {
fatal("Failed to build private key filename: %s",
isc_result_totext(result));
}
printf("%s\n", newname);
}
if (prevkey != NULL)
dst_key_free(&prevkey);
dst_key_free(&key);
dst_lib_destroy();
if (verbose > 10)
isc_mem_stats(mctx, stdout);
cleanup_logging(&log);
isc_mem_free(mctx, directory);
isc_mem_destroy(&mctx);
return (0);
}