2 * Copyright (C) 2009, 2010 Internet Systems Consortium, Inc. ("ISC")
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
9 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
10 * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
11 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
12 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
13 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
14 * PERFORMANCE OF THIS SOFTWARE.
17 /* $Id: dnssec-revoke.c,v 1.22 2010-05-06 23:50:56 tbox Exp $ */
27 #include <isc/buffer.h>
28 #include <isc/commandline.h>
29 #include <isc/entropy.h>
33 #include <isc/print.h>
34 #include <isc/string.h>
37 #include <dns/keyvalues.h>
38 #include <dns/result.h>
42 #include "dnssectool.h"
44 const char *program = "dnssec-revoke";
47 static isc_mem_t *mctx = NULL;
49 ISC_PLATFORM_NORETURN_PRE static void
50 usage(void) ISC_PLATFORM_NORETURN_POST;
54 fprintf(stderr, "Usage:\n");
55 fprintf(stderr, " %s [options] keyfile\n\n", program);
56 fprintf(stderr, "Version: %s\n", VERSION);
58 fprintf(stderr, " -E engine: specify OpenSSL engine "
59 "(default \"pkcs11\")\n");
61 fprintf(stderr, " -E engine: specify OpenSSL engine\n");
63 fprintf(stderr, " -f: force overwrite\n");
64 fprintf(stderr, " -K directory: use directory for key files\n");
65 fprintf(stderr, " -h: help\n");
66 fprintf(stderr, " -r: remove old keyfiles after "
67 "creating revoked version\n");
68 fprintf(stderr, " -v level: set level of verbosity\n");
69 fprintf(stderr, "Output:\n");
70 fprintf(stderr, " K<name>+<alg>+<new id>.key, "
71 "K<name>+<alg>+<new id>.private\n");
77 main(int argc, char **argv) {
80 const char *engine = "pkcs11";
82 const char *engine = NULL;
84 char *filename = NULL, *dir = NULL;
85 char newname[1024], oldname[1024];
86 char keystr[DST_KEY_FORMATSIZE];
89 isc_entropy_t *ectx = NULL;
90 dst_key_t *key = NULL;
93 isc_boolean_t force = ISC_FALSE;
94 isc_boolean_t remove = ISC_FALSE;
99 result = isc_mem_create(0, 0, &mctx);
100 if (result != ISC_R_SUCCESS)
101 fatal("Out of memory");
103 dns_result_register();
105 isc_commandline_errprint = ISC_FALSE;
107 while ((ch = isc_commandline_parse(argc, argv, "E:fK:rhv:")) != -1) {
110 engine = isc_commandline_argument;
117 * We don't have to copy it here, but do it to
118 * simplify cleanup later
120 dir = isc_mem_strdup(mctx, isc_commandline_argument);
122 fatal("Failed to allocate memory for "
130 verbose = strtol(isc_commandline_argument, &endp, 0);
132 fatal("-v must be followed by a number");
135 if (isc_commandline_option != '?')
136 fprintf(stderr, "%s: invalid argument -%c\n",
137 program, isc_commandline_option);
143 fprintf(stderr, "%s: unhandled option -%c\n",
144 program, isc_commandline_option);
149 if (argc < isc_commandline_index + 1 ||
150 argv[isc_commandline_index] == NULL)
151 fatal("The key file name was not specified");
152 if (argc > isc_commandline_index + 1)
153 fatal("Extraneous arguments");
156 filename = argv[isc_commandline_index];
158 result = isc_file_splitpath(mctx, argv[isc_commandline_index],
160 if (result != ISC_R_SUCCESS)
161 fatal("cannot process filename %s: %s",
162 argv[isc_commandline_index],
163 isc_result_totext(result));
164 if (strcmp(dir, ".") == 0) {
165 isc_mem_free(mctx, dir);
171 setup_entropy(mctx, NULL, &ectx);
172 result = isc_hash_create(mctx, ectx, DNS_NAME_MAXWIRE);
173 if (result != ISC_R_SUCCESS)
174 fatal("Could not initialize hash");
175 result = dst_lib_init2(mctx, ectx, engine,
176 ISC_ENTROPY_BLOCKING | ISC_ENTROPY_GOODONLY);
177 if (result != ISC_R_SUCCESS)
178 fatal("Could not initialize dst: %s",
179 isc_result_totext(result));
180 isc_entropy_stopcallbacksources(ectx);
182 result = dst_key_fromnamedfile(filename, dir,
183 DST_TYPE_PUBLIC|DST_TYPE_PRIVATE,
185 if (result != ISC_R_SUCCESS)
186 fatal("Invalid keyfile name %s: %s",
187 filename, isc_result_totext(result));
189 dst_key_format(key, keystr, sizeof(keystr));
192 fprintf(stderr, "%s: %s\n", program, keystr);
197 check_keyversion(key, keystr);
200 flags = dst_key_flags(key);
201 if ((flags & DNS_KEYFLAG_REVOKE) == 0) {
204 if ((flags & DNS_KEYFLAG_KSK) == 0)
205 fprintf(stderr, "%s: warning: Key is not flagged "
206 "as a KSK. Revoking a ZSK is "
207 "legal, but undefined.\n",
210 isc_stdtime_get(&now);
211 dst_key_settime(key, DST_TIME_REVOKE, now);
213 dst_key_setflags(key, flags | DNS_KEYFLAG_REVOKE);
215 isc_buffer_init(&buf, newname, sizeof(newname));
216 dst_key_buildfilename(key, DST_TYPE_PUBLIC, dir, &buf);
218 if (access(newname, F_OK) == 0 && !force) {
219 fatal("Key file %s already exists; "
220 "use -f to force overwrite", newname);
223 result = dst_key_tofile(key, DST_TYPE_PUBLIC|DST_TYPE_PRIVATE,
225 if (result != ISC_R_SUCCESS) {
226 dst_key_format(key, keystr, sizeof(keystr));
227 fatal("Failed to write key %s: %s", keystr,
228 isc_result_totext(result));
231 isc_buffer_clear(&buf);
232 dst_key_buildfilename(key, 0, dir, &buf);
233 printf("%s\n", newname);
236 * Remove old key file, if told to (and if
237 * it isn't the same as the new file)
239 if (remove && dst_key_alg(key) != DST_ALG_RSAMD5) {
240 isc_buffer_init(&buf, oldname, sizeof(oldname));
241 dst_key_setflags(key, flags & ~DNS_KEYFLAG_REVOKE);
242 dst_key_buildfilename(key, DST_TYPE_PRIVATE, dir, &buf);
243 if (strcmp(oldname, newname) == 0)
245 if (access(oldname, F_OK) == 0)
247 isc_buffer_clear(&buf);
248 dst_key_buildfilename(key, DST_TYPE_PUBLIC, dir, &buf);
249 if (access(oldname, F_OK) == 0)
253 dst_key_format(key, keystr, sizeof(keystr));
254 fatal("Key %s is already revoked", keystr);
261 cleanup_entropy(&ectx);
263 isc_mem_stats(mctx, stdout);
265 isc_mem_free(mctx, dir);
266 isc_mem_destroy(&mctx);