| Current Path : /usr/src/contrib/bind9/bin/dnssec/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //usr/src/contrib/bind9/bin/dnssec/dnssec-keygen.c |
/*
* Portions Copyright (C) 2004-2011 Internet Systems Consortium, Inc. ("ISC")
* Portions Copyright (C) 1999-2003 Internet Software Consortium.
*
* 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.
*
* Portions Copyright (C) 1995-2000 by 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.
*/
/* $Id: dnssec-keygen.c,v 1.115.14.4 2011/11/30 00:51:38 marka Exp $ */
/*! \file */
#include <config.h>
#include <ctype.h>
#include <stdlib.h>
#include <unistd.h>
#include <isc/buffer.h>
#include <isc/commandline.h>
#include <isc/entropy.h>
#include <isc/mem.h>
#include <isc/region.h>
#include <isc/string.h>
#include <isc/util.h>
#include <dns/dnssec.h>
#include <dns/fixedname.h>
#include <dns/keyvalues.h>
#include <dns/log.h>
#include <dns/name.h>
#include <dns/rdataclass.h>
#include <dns/result.h>
#include <dns/secalg.h>
#include <dst/dst.h>
#include "dnssectool.h"
#define MAX_RSA 4096 /* should be long enough... */
const char *program = "dnssec-keygen";
int verbose;
#define DEFAULT_ALGORITHM "RSASHA1"
#define DEFAULT_NSEC3_ALGORITHM "NSEC3RSASHA1"
ISC_PLATFORM_NORETURN_PRE static void
usage(void) ISC_PLATFORM_NORETURN_POST;
static void progress(int p);
static void
usage(void) {
fprintf(stderr, "Usage:\n");
fprintf(stderr, " %s [options] name\n\n", program);
fprintf(stderr, "Version: %s\n", VERSION);
fprintf(stderr, " name: owner of the key\n");
fprintf(stderr, "Options:\n");
fprintf(stderr, " -K <directory>: write keys into directory\n");
fprintf(stderr, " -a <algorithm>:\n");
fprintf(stderr, " RSA | RSAMD5 | DSA | RSASHA1 | NSEC3RSASHA1"
" | NSEC3DSA |\n");
fprintf(stderr, " RSASHA256 | RSASHA512 | ECCGOST |\n");
fprintf(stderr, " DH | HMAC-MD5 | HMAC-SHA1 | HMAC-SHA224 | "
"HMAC-SHA256 | \n");
fprintf(stderr, " HMAC-SHA384 | HMAC-SHA512\n");
fprintf(stderr, " (default: RSASHA1, or "
"NSEC3RSASHA1 if using -3)\n");
fprintf(stderr, " -3: use NSEC3-capable algorithm\n");
fprintf(stderr, " -b <key size in bits>:\n");
fprintf(stderr, " RSAMD5:\t[512..%d]\n", MAX_RSA);
fprintf(stderr, " RSASHA1:\t[512..%d]\n", MAX_RSA);
fprintf(stderr, " NSEC3RSASHA1:\t[512..%d]\n", MAX_RSA);
fprintf(stderr, " RSASHA256:\t[512..%d]\n", MAX_RSA);
fprintf(stderr, " RSASHA512:\t[1024..%d]\n", MAX_RSA);
fprintf(stderr, " DH:\t\t[128..4096]\n");
fprintf(stderr, " DSA:\t\t[512..1024] and divisible by 64\n");
fprintf(stderr, " NSEC3DSA:\t[512..1024] and divisible "
"by 64\n");
fprintf(stderr, " ECCGOST:\tignored\n");
fprintf(stderr, " HMAC-MD5:\t[1..512]\n");
fprintf(stderr, " HMAC-SHA1:\t[1..160]\n");
fprintf(stderr, " HMAC-SHA224:\t[1..224]\n");
fprintf(stderr, " HMAC-SHA256:\t[1..256]\n");
fprintf(stderr, " HMAC-SHA384:\t[1..384]\n");
fprintf(stderr, " HMAC-SHA512:\t[1..512]\n");
fprintf(stderr, " (if using the default algorithm, key size\n"
" defaults to 2048 for KSK, or 1024 for all "
"others)\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");
#ifdef USE_PKCS11
fprintf(stderr, " -E <engine name> (default \"pkcs11\")\n");
#else
fprintf(stderr, " -E <engine name>\n");
#endif
fprintf(stderr, " -e: use large exponent (RSAMD5/RSASHA1 only)\n");
fprintf(stderr, " -f <keyflag>: KSK | REVOKE\n");
fprintf(stderr, " -g <generator>: use specified generator "
"(DH only)\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, " ECCGOST:\tignored\n");
fprintf(stderr, " -t <type>: "
"AUTHCONF | NOAUTHCONF | NOAUTH | NOCONF "
"(default: AUTHCONF)\n");
fprintf(stderr, " -r <randomdev>: a file containing random data\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, "Timing options:\n");
fprintf(stderr, " -P date/[+-]offset/none: set key publication date "
"(default: now)\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, " -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 isc_boolean_t
dsa_size_ok(int size) {
return (ISC_TF(size >= 512 && size <= 1024 && size % 64 == 0));
}
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);
}
int
main(int argc, char **argv) {
char *algname = NULL, *freeit = NULL;
char *nametype = NULL, *type = NULL;
char *classname = NULL;
char *endp;
dst_key_t *key = NULL;
dns_fixedname_t fname;
dns_name_t *name;
isc_uint16_t flags = 0, kskflag = 0, revflag = 0;
dns_secalg_t alg;
isc_boolean_t conflict = ISC_FALSE, null_key = ISC_FALSE;
isc_boolean_t oldstyle = ISC_FALSE;
isc_mem_t *mctx = NULL;
int ch, rsa_exp = 0, generator = 0, param = 0;
int protocol = -1, size = -1, signatory = 0;
isc_result_t ret;
isc_textregion_t r;
char filename[255];
const char *directory = NULL;
const char *predecessor = NULL;
dst_key_t *prevkey = NULL;
isc_buffer_t buf;
isc_log_t *log = NULL;
isc_entropy_t *ectx = NULL;
#ifdef USE_PKCS11
const char *engine = "pkcs11";
#else
const char *engine = NULL;
#endif
dns_rdataclass_t rdclass;
int options = DST_TYPE_PRIVATE | DST_TYPE_PUBLIC;
int dbits = 0;
isc_boolean_t use_default = ISC_FALSE, use_nsec3 = ISC_FALSE;
isc_stdtime_t publish = 0, activate = 0, revoke = 0;
isc_stdtime_t inactive = 0, delete = 0;
isc_stdtime_t now;
int prepub = -1;
isc_boolean_t setpub = ISC_FALSE, setact = ISC_FALSE;
isc_boolean_t setrev = ISC_FALSE, setinact = ISC_FALSE;
isc_boolean_t setdel = ISC_FALSE;
isc_boolean_t unsetpub = ISC_FALSE, unsetact = ISC_FALSE;
isc_boolean_t unsetrev = ISC_FALSE, unsetinact = ISC_FALSE;
isc_boolean_t unsetdel = ISC_FALSE;
isc_boolean_t genonly = ISC_FALSE;
isc_boolean_t quiet = ISC_FALSE;
isc_boolean_t show_progress = ISC_FALSE;
unsigned char c;
if (argc == 1)
usage();
dns_result_register();
isc_commandline_errprint = ISC_FALSE;
/*
* Process memory debugging argument first.
*/
#define CMDLINE_FLAGS "3A:a:b:Cc:D:d:E:eFf:Gg:hI:i:K:km:n:P:p:qR:r:S:s:T:t: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;
if (strcasecmp(isc_commandline_argument, "size") == 0)
isc_mem_debugging |= ISC_MEM_DEBUGSIZE;
if (strcasecmp(isc_commandline_argument, "mctx") == 0)
isc_mem_debugging |= ISC_MEM_DEBUGCTX;
break;
default:
break;
}
}
isc_commandline_reset = ISC_TRUE;
RUNTIME_CHECK(isc_mem_create(0, 0, &mctx) == ISC_R_SUCCESS);
isc_stdtime_get(&now);
while ((ch = isc_commandline_parse(argc, argv, CMDLINE_FLAGS)) != -1) {
switch (ch) {
case '3':
use_nsec3 = ISC_TRUE;
break;
case 'a':
algname = isc_commandline_argument;
break;
case 'b':
size = strtol(isc_commandline_argument, &endp, 10);
if (*endp != '\0' || size < 0)
fatal("-b requires a non-negative number");
break;
case 'C':
oldstyle = ISC_TRUE;
break;
case 'c':
classname = isc_commandline_argument;
break;
case 'd':
dbits = strtol(isc_commandline_argument, &endp, 10);
if (*endp != '\0' || dbits < 0)
fatal("-d requires a non-negative number");
break;
case 'E':
engine = isc_commandline_argument;
break;
case 'e':
rsa_exp = 1;
break;
case 'f':
c = (unsigned char)(isc_commandline_argument[0]);
if (toupper(c) == 'K')
kskflag = DNS_KEYFLAG_KSK;
else if (toupper(c) == 'R')
revflag = DNS_KEYFLAG_REVOKE;
else
fatal("unknown flag '%s'",
isc_commandline_argument);
break;
case 'g':
generator = strtol(isc_commandline_argument,
&endp, 10);
if (*endp != '\0' || generator <= 0)
fatal("-g requires a positive number");
break;
case 'K':
directory = isc_commandline_argument;
ret = try_dir(directory);
if (ret != ISC_R_SUCCESS)
fatal("cannot open directory %s: %s",
directory, isc_result_totext(ret));
break;
case 'k':
fatal("The -k option has been deprecated.\n"
"To generate a key-signing key, use -f KSK.\n"
"To generate a key with TYPE=KEY, use -T KEY.\n");
break;
case 'n':
nametype = isc_commandline_argument;
break;
case 'm':
break;
case 'p':
protocol = strtol(isc_commandline_argument, &endp, 10);
if (*endp != '\0' || protocol < 0 || protocol > 255)
fatal("-p must be followed by a number "
"[0..255]");
break;
case 'q':
quiet = ISC_TRUE;
break;
case 'r':
setup_entropy(mctx, isc_commandline_argument, &ectx);
break;
case 's':
signatory = strtol(isc_commandline_argument,
&endp, 10);
if (*endp != '\0' || signatory < 0 || signatory > 15)
fatal("-s must be followed by a number "
"[0..15]");
break;
case 'T':
if (strcasecmp(isc_commandline_argument, "KEY") == 0)
options |= DST_TYPE_KEY;
else if (strcasecmp(isc_commandline_argument,
"DNSKEY") == 0)
/* default behavior */
;
else
fatal("unknown type '%s'",
isc_commandline_argument);
break;
case 't':
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 'z':
/* already the default */
break;
case 'G':
genonly = ISC_TRUE;
break;
case 'P':
if (setpub || unsetpub)
fatal("-P specified more than once");
if (strcasecmp(isc_commandline_argument, "none")) {
setpub = ISC_TRUE;
publish = strtotime(isc_commandline_argument,
now, now);
} else {
unsetpub = ISC_TRUE;
}
break;
case 'A':
if (setact || unsetact)
fatal("-A specified more than once");
if (strcasecmp(isc_commandline_argument, "none")) {
setact = ISC_TRUE;
activate = strtotime(isc_commandline_argument,
now, now);
} else {
unsetact = ISC_TRUE;
}
break;
case 'R':
if (setrev || unsetrev)
fatal("-R specified more than once");
if (strcasecmp(isc_commandline_argument, "none")) {
setrev = ISC_TRUE;
revoke = strtotime(isc_commandline_argument,
now, now);
} else {
unsetrev = ISC_TRUE;
}
break;
case 'I':
if (setinact || unsetinact)
fatal("-I specified more than once");
if (strcasecmp(isc_commandline_argument, "none")) {
setinact = ISC_TRUE;
inactive = strtotime(isc_commandline_argument,
now, now);
} else {
unsetinact = ISC_TRUE;
}
break;
case 'D':
if (setdel || unsetdel)
fatal("-D specified more than once");
if (strcasecmp(isc_commandline_argument, "none")) {
setdel = ISC_TRUE;
delete = strtotime(isc_commandline_argument,
now, now);
} else {
unsetdel = ISC_TRUE;
}
break;
case 'S':
predecessor = isc_commandline_argument;
break;
case 'i':
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':
usage();
default:
fprintf(stderr, "%s: unhandled option -%c\n",
program, isc_commandline_option);
exit(1);
}
}
if (!isatty(0))
quiet = ISC_TRUE;
if (ectx == NULL)
setup_entropy(mctx, NULL, &ectx);
ret = dst_lib_init2(mctx, ectx, engine,
ISC_ENTROPY_BLOCKING | ISC_ENTROPY_GOODONLY);
if (ret != ISC_R_SUCCESS)
fatal("could not initialize dst: %s",
isc_result_totext(ret));
setup_logging(verbose, mctx, &log);
if (predecessor == NULL) {
if (prepub == -1)
prepub = 0;
if (argc < isc_commandline_index + 1)
fatal("the key name was not specified");
if (argc > isc_commandline_index + 1)
fatal("extraneous arguments");
dns_fixedname_init(&fname);
name = dns_fixedname_name(&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 (algname == NULL) {
use_default = ISC_TRUE;
if (use_nsec3)
algname = strdup(DEFAULT_NSEC3_ALGORITHM);
else
algname = strdup(DEFAULT_ALGORITHM);
if (algname == NULL)
fatal("strdup failed");
freeit = algname;
if (verbose > 0)
fprintf(stderr, "no algorithm specified; "
"defaulting to %s\n", algname);
}
if (strcasecmp(algname, "RSA") == 0) {
fprintf(stderr, "The use of RSA (RSAMD5) is not "
"recommended.\nIf you still wish to "
"use RSA (RSAMD5) please specify "
"\"-a RSAMD5\"\n");
return (1);
} else if (strcasecmp(algname, "HMAC-MD5") == 0)
alg = DST_ALG_HMACMD5;
else if (strcasecmp(algname, "HMAC-SHA1") == 0)
alg = DST_ALG_HMACSHA1;
else if (strcasecmp(algname, "HMAC-SHA224") == 0)
alg = DST_ALG_HMACSHA224;
else if (strcasecmp(algname, "HMAC-SHA256") == 0)
alg = DST_ALG_HMACSHA256;
else if (strcasecmp(algname, "HMAC-SHA384") == 0)
alg = DST_ALG_HMACSHA384;
else if (strcasecmp(algname, "HMAC-SHA512") == 0)
alg = DST_ALG_HMACSHA512;
else {
r.base = algname;
r.length = strlen(algname);
ret = dns_secalg_fromtext(&alg, &r);
if (ret != ISC_R_SUCCESS)
fatal("unknown algorithm %s", algname);
if (alg == DST_ALG_DH)
options |= DST_TYPE_KEY;
}
if (use_nsec3 &&
alg != DST_ALG_NSEC3DSA && alg != DST_ALG_NSEC3RSASHA1 &&
alg != DST_ALG_RSASHA256 && alg!= DST_ALG_RSASHA512 &&
alg != DST_ALG_ECCGOST) {
fatal("%s is incompatible with NSEC3; "
"do not use the -3 option", algname);
}
if (type != NULL && (options & DST_TYPE_KEY) != 0) {
if (strcasecmp(type, "NOAUTH") == 0)
flags |= DNS_KEYTYPE_NOAUTH;
else if (strcasecmp(type, "NOCONF") == 0)
flags |= DNS_KEYTYPE_NOCONF;
else if (strcasecmp(type, "NOAUTHCONF") == 0) {
flags |= (DNS_KEYTYPE_NOAUTH |
DNS_KEYTYPE_NOCONF);
if (size < 0)
size = 0;
}
else if (strcasecmp(type, "AUTHCONF") == 0)
/* nothing */;
else
fatal("invalid type %s", type);
}
if (size < 0) {
if (use_default) {
if ((kskflag & DNS_KEYFLAG_KSK) != 0)
size = 2048;
else
size = 1024;
if (verbose > 0)
fprintf(stderr, "key size not "
"specified; defaulting "
"to %d\n", size);
} else if (alg != DST_ALG_ECCGOST)
fatal("key size not specified (-b option)");
}
if (!oldstyle && prepub > 0) {
if (setpub && setact && (activate - prepub) < publish)
fatal("Activation and publication dates "
"are closer together than the\n\t"
"prepublication interval.");
if (!setpub && !setact) {
setpub = setact = ISC_TRUE;
publish = now;
activate = now + prepub;
} else if (setpub && !setact) {
setact = ISC_TRUE;
activate = publish + prepub;
} else if (setact && !setpub) {
setpub = ISC_TRUE;
publish = activate - prepub;
}
if ((activate - prepub) < 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 (prepub == -1)
prepub = (30 * 86400);
if (algname != NULL)
fatal("-S and -a cannot be used together");
if (size >= 0)
fatal("-S and -b cannot be used together");
if (nametype != NULL)
fatal("-S and -n cannot be used together");
if (type != NULL)
fatal("-S and -t cannot be used together");
if (setpub || unsetpub)
fatal("-S and -P cannot be used together");
if (setact || unsetact)
fatal("-S and -A cannot be used together");
if (use_nsec3)
fatal("-S and -3 cannot be used together");
if (oldstyle)
fatal("-S and -C cannot be used together");
if (genonly)
fatal("-S and -G cannot be used together");
ret = dst_key_fromnamedfile(predecessor, directory,
DST_TYPE_PUBLIC | DST_TYPE_PRIVATE,
mctx, &prevkey);
if (ret != ISC_R_SUCCESS)
fatal("Invalid keyfile %s: %s",
filename, isc_result_totext(ret));
if (!dst_key_isprivate(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("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, &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);
publish = activate - prepub;
if (publish < 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);
setpub = setact = ISC_TRUE;
}
switch (alg) {
case DNS_KEYALG_RSAMD5:
case DNS_KEYALG_RSASHA1:
case DNS_KEYALG_NSEC3RSASHA1:
case DNS_KEYALG_RSASHA256:
if (size != 0 && (size < 512 || size > MAX_RSA))
fatal("RSA key size %d out of range", size);
break;
case DNS_KEYALG_RSASHA512:
if (size != 0 && (size < 1024 || size > MAX_RSA))
fatal("RSA key size %d out of range", size);
break;
case DNS_KEYALG_DH:
if (size != 0 && (size < 128 || size > 4096))
fatal("DH key size %d out of range", size);
break;
case DNS_KEYALG_DSA:
case DNS_KEYALG_NSEC3DSA:
if (size != 0 && !dsa_size_ok(size))
fatal("invalid DSS key size: %d", size);
break;
case DST_ALG_ECCGOST:
break;
case DST_ALG_HMACMD5:
options |= DST_TYPE_KEY;
if (size < 1 || size > 512)
fatal("HMAC-MD5 key size %d out of range", size);
if (dbits != 0 && (dbits < 80 || dbits > 128))
fatal("HMAC-MD5 digest bits %d out of range", dbits);
if ((dbits % 8) != 0)
fatal("HMAC-MD5 digest bits %d not divisible by 8",
dbits);
break;
case DST_ALG_HMACSHA1:
options |= DST_TYPE_KEY;
if (size < 1 || size > 160)
fatal("HMAC-SHA1 key size %d out of range", size);
if (dbits != 0 && (dbits < 80 || dbits > 160))
fatal("HMAC-SHA1 digest bits %d out of range", dbits);
if ((dbits % 8) != 0)
fatal("HMAC-SHA1 digest bits %d not divisible by 8",
dbits);
break;
case DST_ALG_HMACSHA224:
options |= DST_TYPE_KEY;
if (size < 1 || size > 224)
fatal("HMAC-SHA224 key size %d out of range", size);
if (dbits != 0 && (dbits < 112 || dbits > 224))
fatal("HMAC-SHA224 digest bits %d out of range", dbits);
if ((dbits % 8) != 0)
fatal("HMAC-SHA224 digest bits %d not divisible by 8",
dbits);
break;
case DST_ALG_HMACSHA256:
options |= DST_TYPE_KEY;
if (size < 1 || size > 256)
fatal("HMAC-SHA256 key size %d out of range", size);
if (dbits != 0 && (dbits < 128 || dbits > 256))
fatal("HMAC-SHA256 digest bits %d out of range", dbits);
if ((dbits % 8) != 0)
fatal("HMAC-SHA256 digest bits %d not divisible by 8",
dbits);
break;
case DST_ALG_HMACSHA384:
options |= DST_TYPE_KEY;
if (size < 1 || size > 384)
fatal("HMAC-384 key size %d out of range", size);
if (dbits != 0 && (dbits < 192 || dbits > 384))
fatal("HMAC-SHA384 digest bits %d out of range", dbits);
if ((dbits % 8) != 0)
fatal("HMAC-SHA384 digest bits %d not divisible by 8",
dbits);
break;
case DST_ALG_HMACSHA512:
options |= DST_TYPE_KEY;
if (size < 1 || size > 512)
fatal("HMAC-SHA512 key size %d out of range", size);
if (dbits != 0 && (dbits < 256 || dbits > 512))
fatal("HMAC-SHA512 digest bits %d out of range", dbits);
if ((dbits % 8) != 0)
fatal("HMAC-SHA512 digest bits %d not divisible by 8",
dbits);
break;
}
if (!(alg == DNS_KEYALG_RSAMD5 || alg == DNS_KEYALG_RSASHA1 ||
alg == DNS_KEYALG_NSEC3RSASHA1 || alg == DNS_KEYALG_RSASHA256 ||
alg == DNS_KEYALG_RSASHA512 || alg == DST_ALG_ECCGOST) &&
rsa_exp != 0)
fatal("specified RSA exponent for a non-RSA key");
if (alg != DNS_KEYALG_DH && generator != 0)
fatal("specified DH generator for a non-DH key");
if (nametype == NULL) {
if ((options & DST_TYPE_KEY) != 0) /* KEY / HMAC */
fatal("no nametype specified");
flags |= DNS_KEYOWNER_ZONE; /* DNSKEY */
} else if (strcasecmp(nametype, "zone") == 0)
flags |= DNS_KEYOWNER_ZONE;
else if ((options & DST_TYPE_KEY) != 0) { /* KEY / HMAC */
if (strcasecmp(nametype, "host") == 0 ||
strcasecmp(nametype, "entity") == 0)
flags |= DNS_KEYOWNER_ENTITY;
else if (strcasecmp(nametype, "user") == 0)
flags |= DNS_KEYOWNER_USER;
else
fatal("invalid KEY nametype %s", nametype);
} else if (strcasecmp(nametype, "other") != 0) /* DNSKEY */
fatal("invalid DNSKEY nametype %s", nametype);
rdclass = strtoclass(classname);
if (directory == NULL)
directory = ".";
if ((options & DST_TYPE_KEY) != 0) /* KEY / HMAC */
flags |= signatory;
else if ((flags & DNS_KEYOWNER_ZONE) != 0) { /* DNSKEY */
flags |= kskflag;
flags |= revflag;
}
if (protocol == -1)
protocol = DNS_KEYPROTO_DNSSEC;
else if ((options & DST_TYPE_KEY) == 0 &&
protocol != DNS_KEYPROTO_DNSSEC)
fatal("invalid DNSKEY protocol: %d", protocol);
if ((flags & DNS_KEYFLAG_TYPEMASK) == DNS_KEYTYPE_NOKEY) {
if (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 &&
(alg == DNS_KEYALG_DH || alg == DST_ALG_HMACMD5 ||
alg == DST_ALG_HMACSHA1 || alg == DST_ALG_HMACSHA224 ||
alg == DST_ALG_HMACSHA256 || alg == DST_ALG_HMACSHA384 ||
alg == DST_ALG_HMACSHA512))
fatal("a key with algorithm '%s' cannot be a zone key",
algname);
switch(alg) {
case DNS_KEYALG_RSAMD5:
case DNS_KEYALG_RSASHA1:
case DNS_KEYALG_NSEC3RSASHA1:
case DNS_KEYALG_RSASHA256:
case DNS_KEYALG_RSASHA512:
param = rsa_exp;
show_progress = ISC_TRUE;
break;
case DNS_KEYALG_DH:
param = generator;
break;
case DNS_KEYALG_DSA:
case DNS_KEYALG_NSEC3DSA:
case DST_ALG_ECCGOST:
show_progress = ISC_TRUE;
/* fall through */
case DST_ALG_HMACMD5:
case DST_ALG_HMACSHA1:
case DST_ALG_HMACSHA224:
case DST_ALG_HMACSHA256:
case DST_ALG_HMACSHA384:
case DST_ALG_HMACSHA512:
param = 0;
break;
}
if ((flags & DNS_KEYFLAG_TYPEMASK) == DNS_KEYTYPE_NOKEY)
null_key = ISC_TRUE;
isc_buffer_init(&buf, filename, sizeof(filename) - 1);
do {
conflict = ISC_FALSE;
if (!quiet && show_progress) {
fprintf(stderr, "Generating key pair.");
ret = dst_key_generate2(name, alg, size, param, flags,
protocol, rdclass, mctx, &key,
&progress);
putc('\n', stderr);
fflush(stderr);
} else {
ret = dst_key_generate2(name, alg, size, param, flags,
protocol, rdclass, mctx, &key,
NULL);
}
isc_entropy_stopcallbacksources(ectx);
if (ret != ISC_R_SUCCESS) {
char namestr[DNS_NAME_FORMATSIZE];
char algstr[DNS_SECALG_FORMATSIZE];
dns_name_format(name, namestr, sizeof(namestr));
dns_secalg_format(alg, algstr, sizeof(algstr));
fatal("failed to generate key %s/%s: %s\n",
namestr, algstr, isc_result_totext(ret));
/* NOTREACHED */
exit(-1);
}
dst_key_setbits(key, 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 (!oldstyle) {
dst_key_settime(key, DST_TIME_CREATED, now);
if (genonly && (setpub || setact))
fatal("cannot use -G together with "
"-P or -A options");
if (setpub)
dst_key_settime(key, DST_TIME_PUBLISH, publish);
else if (setact)
dst_key_settime(key, DST_TIME_PUBLISH,
activate);
else if (!genonly && !unsetpub)
dst_key_settime(key, DST_TIME_PUBLISH, now);
if (setact)
dst_key_settime(key, DST_TIME_ACTIVATE,
activate);
else if (!genonly && !unsetact)
dst_key_settime(key, DST_TIME_ACTIVATE, now);
if (setrev) {
if (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, revoke);
}
if (setinact)
dst_key_settime(key, DST_TIME_INACTIVE,
inactive);
if (setdel)
dst_key_settime(key, DST_TIME_DELETE, delete);
} else {
if (setpub || setact || setrev || setinact ||
setdel || unsetpub || unsetact ||
unsetrev || unsetinact || unsetdel || genonly)
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);
}
/*
* 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, directory, mctx, NULL)) {
conflict = ISC_TRUE;
if (null_key) {
dst_key_free(&key);
break;
}
if (verbose > 0) {
isc_buffer_clear(&buf);
ret = dst_key_buildfilename(key, 0,
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 == ISC_TRUE);
if (conflict)
fatal("cannot generate a null key due to possible key ID "
"collision");
ret = dst_key_tofile(key, options, 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);
cleanup_logging(&log);
cleanup_entropy(&ectx);
dst_lib_destroy();
dns_name_destroy();
if (verbose > 10)
isc_mem_stats(mctx, stdout);
isc_mem_destroy(&mctx);
if (freeit != NULL)
free(freeit);
return (0);
}