/*%
* Reads a public key from disk
*/
isc_result_t
dst_key_read_public(const char *filename, int type,
isc_mem_t *mctx, dst_key_t **keyp)
{
u_char rdatabuf[DST_KEY_MAXSIZE];
isc_buffer_t b;
dns_fixedname_t name;
isc_lex_t *lex = NULL;
isc_token_t token;
isc_result_t ret;
dns_rdata_t rdata = DNS_RDATA_INIT;
unsigned int opt = ISC_LEXOPT_DNSMULTILINE;
dns_rdataclass_t rdclass = dns_rdataclass_in;
isc_lexspecials_t specials;
isc_uint32_t ttl = 0;
isc_result_t result;
dns_rdatatype_t keytype;
/*
* Open the file and read its formatted contents
* File format:
* domain.name [ttl] [class] [KEY|DNSKEY] <flags> <protocol> <algorithm> <key>
*/
/* 1500 should be large enough for any key */
ret = isc_lex_create(mctx, 1500, &lex);
if (ret != ISC_R_SUCCESS)
goto cleanup;
memset(specials, 0, sizeof(specials));
specials['('] = 1;
specials[')'] = 1;
specials['"'] = 1;
isc_lex_setspecials(lex, specials);
isc_lex_setcomments(lex, ISC_LEXCOMMENT_DNSMASTERFILE);
ret = isc_lex_openfile(lex, filename);
if (ret != ISC_R_SUCCESS)
goto cleanup;
#define NEXTTOKEN(lex, opt, token) { \
ret = isc_lex_gettoken(lex, opt, token); \
if (ret != ISC_R_SUCCESS) \
goto cleanup; \
}
#define BADTOKEN() { \
ret = ISC_R_UNEXPECTEDTOKEN; \
goto cleanup; \
}
/* Read the domain name */
NEXTTOKEN(lex, opt, &token);
if (token.type != isc_tokentype_string)
BADTOKEN();
/*
* We don't support "@" in .key files.
*/
if (!strcmp(DST_AS_STR(token), "@"))
BADTOKEN();
dns_fixedname_init(&name);
isc_buffer_init(&b, DST_AS_STR(token), strlen(DST_AS_STR(token)));
isc_buffer_add(&b, strlen(DST_AS_STR(token)));
ret = dns_name_fromtext(dns_fixedname_name(&name), &b, dns_rootname,
0, NULL);
if (ret != ISC_R_SUCCESS)
goto cleanup;
/* Read the next word: either TTL, class, or 'KEY' */
NEXTTOKEN(lex, opt, &token);
if (token.type != isc_tokentype_string)
BADTOKEN();
/* If it's a TTL, read the next one */
result = dns_ttl_fromtext(&token.value.as_textregion, &ttl);
if (result == ISC_R_SUCCESS)
NEXTTOKEN(lex, opt, &token);
if (token.type != isc_tokentype_string)
BADTOKEN();
ret = dns_rdataclass_fromtext(&rdclass, &token.value.as_textregion);
if (ret == ISC_R_SUCCESS)
NEXTTOKEN(lex, opt, &token);
if (token.type != isc_tokentype_string)
BADTOKEN();
if (strcasecmp(DST_AS_STR(token), "DNSKEY") == 0)
keytype = dns_rdatatype_dnskey;
else if (strcasecmp(DST_AS_STR(token), "KEY") == 0)
keytype = dns_rdatatype_key; /*%< SIG(0), TKEY */
else
BADTOKEN();
if (((type & DST_TYPE_KEY) != 0 && keytype != dns_rdatatype_key) ||
((type & DST_TYPE_KEY) == 0 && keytype != dns_rdatatype_dnskey)) {
ret = DST_R_BADKEYTYPE;
goto cleanup;
}
isc_buffer_init(&b, rdatabuf, sizeof(rdatabuf));
ret = dns_rdata_fromtext(&rdata, rdclass, keytype, lex, NULL,
ISC_FALSE, mctx, &b, NULL);
if (ret != ISC_R_SUCCESS)
goto cleanup;
ret = dst_key_fromdns(dns_fixedname_name(&name), rdclass, &b, mctx,
keyp);
if (ret != ISC_R_SUCCESS)
goto cleanup;
dst_key_setttl(*keyp, ttl);
cleanup:
if (lex != NULL)
isc_lex_destroy(&lex);
return (ret);
}
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);
}
