/*
* Check private key version compatibility.
*/
void check_keyversion (dst_key_t * key, char *keystr)
{
int major, minor;
dst_key_getprivateformat (key, &major, &minor);
INSIST (major <= DST_MAJOR_VERSION); /* invalid private key */
if (major < DST_MAJOR_VERSION || minor < DST_MINOR_VERSION)
fatal ("Key %s has incompatible format version %d.%d, "
"use -f to force upgrade to new version.", keystr, major, minor);
if (minor > DST_MINOR_VERSION)
fatal ("Key %s has incompatible format version %d.%d, "
"use -f to force downgrade to current version.", keystr, major, minor);
}
void
set_keyversion(dst_key_t *key) {
int major, minor;
dst_key_getprivateformat(key, &major, &minor);
INSIST(major <= DST_MAJOR_VERSION);
if (major != DST_MAJOR_VERSION || minor != DST_MINOR_VERSION)
dst_key_setprivateformat(key, DST_MAJOR_VERSION,
DST_MINOR_VERSION);
/*
* If the key is from a version older than 1.3, set
* set the creation date
*/
if (major < 1 || (major == 1 && minor <= 2)) {
isc_stdtime_t now;
isc_stdtime_get(&now);
dst_key_settime(key, DST_TIME_CREATED, now);
}
}
isc_result_t
dst__privstruct_writefile(const dst_key_t *key, const dst_private_t *priv,
const char *directory)
{
FILE *fp;
isc_result_t result;
char filename[ISC_DIR_NAMEMAX];
char buffer[MAXFIELDSIZE * 2];
isc_fsaccess_t access;
isc_stdtime_t when;
isc_uint32_t value;
isc_buffer_t b;
isc_region_t r;
int major, minor;
mode_t mode;
int i, ret;
REQUIRE(priv != NULL);
ret = check_data(priv, dst_key_alg(key), ISC_FALSE, key->external);
if (ret < 0)
return (DST_R_INVALIDPRIVATEKEY);
else if (ret != ISC_R_SUCCESS)
return (ret);
isc_buffer_init(&b, filename, sizeof(filename));
result = dst_key_buildfilename(key, DST_TYPE_PRIVATE, directory, &b);
if (result != ISC_R_SUCCESS)
return (result);
result = isc_file_mode(filename, &mode);
if (result == ISC_R_SUCCESS && mode != 0600) {
/* File exists; warn that we are changing its permissions */
isc_log_write(dns_lctx, DNS_LOGCATEGORY_GENERAL,
DNS_LOGMODULE_DNSSEC, ISC_LOG_WARNING,
"Permissions on the file %s "
"have changed from 0%o to 0600 as "
"a result of this operation.",
filename, (unsigned int)mode);
}
if ((fp = fopen(filename, "w")) == NULL)
return (DST_R_WRITEERROR);
access = 0;
isc_fsaccess_add(ISC_FSACCESS_OWNER,
ISC_FSACCESS_READ | ISC_FSACCESS_WRITE,
&access);
(void)isc_fsaccess_set(filename, access);
dst_key_getprivateformat(key, &major, &minor);
if (major == 0 && minor == 0) {
major = DST_MAJOR_VERSION;
minor = DST_MINOR_VERSION;
}
/* XXXDCL return value should be checked for full filesystem */
fprintf(fp, "%s v%d.%d\n", PRIVATE_KEY_STR, major, minor);
fprintf(fp, "%s %d ", ALGORITHM_STR, dst_key_alg(key));
/* XXXVIX this switch statement is too sparse to gen a jump table. */
switch (dst_key_alg(key)) {
case DST_ALG_RSAMD5:
fprintf(fp, "(RSA)\n");
break;
case DST_ALG_DH:
fprintf(fp, "(DH)\n");
break;
case DST_ALG_DSA:
fprintf(fp, "(DSA)\n");
break;
case DST_ALG_RSASHA1:
fprintf(fp, "(RSASHA1)\n");
break;
case DST_ALG_NSEC3RSASHA1:
fprintf(fp, "(NSEC3RSASHA1)\n");
break;
case DST_ALG_NSEC3DSA:
fprintf(fp, "(NSEC3DSA)\n");
break;
case DST_ALG_RSASHA256:
fprintf(fp, "(RSASHA256)\n");
break;
case DST_ALG_RSASHA512:
fprintf(fp, "(RSASHA512)\n");
break;
case DST_ALG_ECCGOST:
fprintf(fp, "(ECC-GOST)\n");
break;
case DST_ALG_ECDSA256:
fprintf(fp, "(ECDSAP256SHA256)\n");
break;
case DST_ALG_ECDSA384:
fprintf(fp, "(ECDSAP384SHA384)\n");
break;
case DST_ALG_HMACMD5:
fprintf(fp, "(HMAC_MD5)\n");
break;
case DST_ALG_HMACSHA1:
fprintf(fp, "(HMAC_SHA1)\n");
break;
case DST_ALG_HMACSHA224:
fprintf(fp, "(HMAC_SHA224)\n");
break;
case DST_ALG_HMACSHA256:
fprintf(fp, "(HMAC_SHA256)\n");
break;
case DST_ALG_HMACSHA384:
fprintf(fp, "(HMAC_SHA384)\n");
break;
case DST_ALG_HMACSHA512:
fprintf(fp, "(HMAC_SHA512)\n");
break;
default:
fprintf(fp, "(?)\n");
break;
}
for (i = 0; i < priv->nelements; i++) {
const char *s;
s = find_tag(priv->elements[i].tag);
r.base = priv->elements[i].data;
r.length = priv->elements[i].length;
isc_buffer_init(&b, buffer, sizeof(buffer));
result = isc_base64_totext(&r, sizeof(buffer), "", &b);
if (result != ISC_R_SUCCESS) {
fclose(fp);
return (DST_R_INVALIDPRIVATEKEY);
}
isc_buffer_usedregion(&b, &r);
fprintf(fp, "%s %.*s\n", s, (int)r.length, r.base);
}
if (key->external)
fprintf(fp, "External:\n");
/* Add the metadata tags */
if (major > 1 || (major == 1 && minor >= 3)) {
for (i = 0; i < NUMERIC_NTAGS; i++) {
result = dst_key_getnum(key, i, &value);
if (result != ISC_R_SUCCESS)
continue;
fprintf(fp, "%s %u\n", numerictags[i], value);
}
for (i = 0; i < TIMING_NTAGS; i++) {
result = dst_key_gettime(key, i, &when);
if (result != ISC_R_SUCCESS)
continue;
isc_buffer_init(&b, buffer, sizeof(buffer));
result = dns_time32_totext(when, &b);
if (result != ISC_R_SUCCESS) {
fclose(fp);
return (DST_R_INVALIDPRIVATEKEY);
}
isc_buffer_usedregion(&b, &r);
fprintf(fp, "%s %.*s\n", timetags[i], (int)r.length,
r.base);
}
}
fflush(fp);
result = ferror(fp) ? DST_R_WRITEERROR : ISC_R_SUCCESS;
fclose(fp);
return (result);
}
int
main(int argc, char **argv) {
isc_result_t result;
#ifdef USE_PKCS11
const char *engine = "pkcs11";
#else
const char *engine = NULL;
#endif
char *filename = NULL, *directory = NULL;
char newname[1024];
char keystr[DST_KEY_FORMATSIZE];
char *endp, *p;
int ch;
isc_entropy_t *ectx = NULL;
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;
isc_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_boolean_t setpub = ISC_FALSE, setact = ISC_FALSE;
isc_boolean_t setrev = ISC_FALSE, setinact = ISC_FALSE;
isc_boolean_t setdel = ISC_FALSE, setttl = 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 printcreate = ISC_FALSE, printpub = ISC_FALSE;
isc_boolean_t printact = ISC_FALSE, printrev = ISC_FALSE;
isc_boolean_t printinact = ISC_FALSE, printdel = ISC_FALSE;
isc_boolean_t force = ISC_FALSE;
isc_boolean_t epoch = ISC_FALSE;
isc_boolean_t changed = ISC_FALSE;
isc_log_t *log = NULL;
isc__mem_register();
if (argc == 1)
usage();
result = isc_mem_create(0, 0, &mctx);
if (result != ISC_R_SUCCESS)
fatal("Out of memory");
setup_logging(verbose, mctx, &log);
dns_result_register();
isc_commandline_errprint = ISC_FALSE;
isc_stdtime_get(&now);
#define CMDLINE_FLAGS "A:D:E:fhI:i:K:L:P:p:R:S:uv:"
while ((ch = isc_commandline_parse(argc, argv, CMDLINE_FLAGS)) != -1) {
switch (ch) {
case 'E':
engine = isc_commandline_argument;
break;
case 'f':
force = ISC_TRUE;
break;
case 'p':
p = isc_commandline_argument;
if (!strcasecmp(p, "all")) {
printcreate = ISC_TRUE;
printpub = ISC_TRUE;
printact = ISC_TRUE;
printrev = ISC_TRUE;
printinact = ISC_TRUE;
printdel = ISC_TRUE;
break;
}
do {
switch (*p++) {
case 'C':
printcreate = ISC_TRUE;
break;
case 'P':
printpub = ISC_TRUE;
break;
case 'A':
printact = ISC_TRUE;
break;
case 'R':
printrev = ISC_TRUE;
break;
case 'I':
printinact = ISC_TRUE;
break;
case 'D':
printdel = ISC_TRUE;
break;
case ' ':
break;
default:
usage();
break;
}
} while (*p != '\0');
break;
case 'u':
epoch = ISC_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':
if (strcmp(isc_commandline_argument, "none") == 0)
ttl = 0;
else
ttl = strtottl(isc_commandline_argument);
setttl = ISC_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':
if (setpub || unsetpub)
fatal("-P specified more than once");
changed = ISC_TRUE;
if (!strcasecmp(isc_commandline_argument, "none")) {
unsetpub = ISC_TRUE;
} else {
setpub = ISC_TRUE;
pub = strtotime(isc_commandline_argument,
now, now);
}
break;
case 'A':
if (setact || unsetact)
fatal("-A specified more than once");
changed = ISC_TRUE;
if (!strcasecmp(isc_commandline_argument, "none")) {
unsetact = ISC_TRUE;
} else {
setact = ISC_TRUE;
act = strtotime(isc_commandline_argument,
now, now);
}
break;
case 'R':
if (setrev || unsetrev)
fatal("-R specified more than once");
changed = ISC_TRUE;
if (!strcasecmp(isc_commandline_argument, "none")) {
unsetrev = ISC_TRUE;
} else {
setrev = ISC_TRUE;
rev = strtotime(isc_commandline_argument,
now, now);
}
break;
case 'I':
if (setinact || unsetinact)
fatal("-I specified more than once");
changed = ISC_TRUE;
if (!strcasecmp(isc_commandline_argument, "none")) {
unsetinact = ISC_TRUE;
} else {
setinact = ISC_TRUE;
inact = strtotime(isc_commandline_argument,
now, now);
}
break;
case 'D':
if (setdel || unsetdel)
fatal("-D specified more than once");
changed = ISC_TRUE;
if (!strcasecmp(isc_commandline_argument, "none")) {
unsetdel = ISC_TRUE;
} else {
setdel = ISC_TRUE;
del = strtotime(isc_commandline_argument,
now, now);
}
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);
/* Falls into */
case 'h':
usage();
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");
if (ectx == NULL)
setup_entropy(mctx, NULL, &ectx);
result = isc_hash_create(mctx, ectx, DNS_NAME_MAXWIRE);
if (result != ISC_R_SUCCESS)
fatal("Could not initialize hash");
result = dst_lib_init2(mctx, ectx, engine,
ISC_ENTROPY_BLOCKING | ISC_ENTROPY_GOODONLY);
if (result != ISC_R_SUCCESS)
fatal("Could not initialize dst: %s",
isc_result_totext(result));
isc_entropy_stopcallbacksources(ectx);
if (predecessor != NULL) {
char keystr[DST_KEY_FORMATSIZE];
isc_stdtime_t when;
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))
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, &when);
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, &act);
if (result != ISC_R_SUCCESS)
fatal("Predecessor has no inactivation date. "
"You must set one before\n\t"
"generating a successor.");
pub = act - prepub;
if (pub < now && prepub != 0)
fatal("Predecessor will become inactive before the\n\t"
"prepublication period ends. Either change "
"its inactivation date,\n\t"
"or use the -i option to set a shorter "
"prepublication interval.");
result = dst_key_gettime(prevkey, DST_TIME_DELETE, &when);
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);
changed = setpub = setact = ISC_TRUE;
dst_key_free(&prevkey);
} 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 = ISC_TRUE;
act = pub + prepub;
} else if (setact && !setpub) {
setpub = ISC_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))
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");
}
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 (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 = ISC_TRUE;
}
if (!changed && setttl)
changed = ISC_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 (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);
}
dst_key_free(&key);
dst_lib_destroy();
isc_hash_destroy();
cleanup_entropy(&ectx);
if (verbose > 10)
isc_mem_stats(mctx, stdout);
cleanup_logging(&log);
isc_mem_free(mctx, directory);
isc_mem_destroy(&mctx);
return (0);
}
