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-rw-r--r--bin/dnssec/dnssec-revoke.c278
1 files changed, 278 insertions, 0 deletions
diff --git a/bin/dnssec/dnssec-revoke.c b/bin/dnssec/dnssec-revoke.c
new file mode 100644
index 0000000..c532463
--- /dev/null
+++ b/bin/dnssec/dnssec-revoke.c
@@ -0,0 +1,278 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * SPDX-License-Identifier: MPL-2.0
+ *
+ * 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 https://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+/*! \file */
+
+#include <inttypes.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <unistd.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 <dst/dst.h>
+
+#if USE_PKCS11
+#include <pk11/result.h>
+#endif /* if USE_PKCS11 */
+
+#include "dnssectool.h"
+
+const char *program = "dnssec-revoke";
+
+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);
+#if USE_PKCS11
+ fprintf(stderr,
+ " -E engine: specify PKCS#11 provider "
+ "(default: %s)\n",
+ PK11_LIB_LOCATION);
+#else /* if USE_PKCS11 */
+ fprintf(stderr, " -E engine: specify OpenSSL engine\n");
+#endif /* if USE_PKCS11 */
+ fprintf(stderr, " -f: force overwrite\n");
+ fprintf(stderr, " -h: help\n");
+ fprintf(stderr, " -K directory: use directory for key files\n");
+ fprintf(stderr, " -r: remove old keyfiles after "
+ "creating revoked version\n");
+ fprintf(stderr, " -v level: set level of verbosity\n");
+ fprintf(stderr, " -V: print version information\n");
+ fprintf(stderr, "Output:\n");
+ fprintf(stderr, " K<name>+<alg>+<new id>.key, "
+ "K<name>+<alg>+<new id>.private\n");
+
+ exit(-1);
+}
+
+int
+main(int argc, char **argv) {
+ isc_result_t result;
+ const char *engine = NULL;
+ char const *filename = NULL;
+ char *dir = NULL;
+ char newname[1024], oldname[1024];
+ char keystr[DST_KEY_FORMATSIZE];
+ char *endp;
+ int ch;
+ dst_key_t *key = NULL;
+ uint32_t flags;
+ isc_buffer_t buf;
+ bool force = false;
+ bool removefile = false;
+ bool id = false;
+
+ if (argc == 1) {
+ usage();
+ }
+
+ isc_mem_create(&mctx);
+
+#if USE_PKCS11
+ pk11_result_register();
+#endif /* if USE_PKCS11 */
+ dns_result_register();
+
+ isc_commandline_errprint = false;
+
+ while ((ch = isc_commandline_parse(argc, argv, "E:fK:rRhv:V")) != -1) {
+ switch (ch) {
+ case 'E':
+ engine = isc_commandline_argument;
+ break;
+ case 'f':
+ force = true;
+ break;
+ case 'K':
+ /*
+ * We don't have to copy it here, but do it to
+ * simplify cleanup later
+ */
+ dir = isc_mem_strdup(mctx, isc_commandline_argument);
+ break;
+ case 'r':
+ removefile = true;
+ break;
+ case 'R':
+ id = true;
+ break;
+ case 'v':
+ verbose = strtol(isc_commandline_argument, &endp, 0);
+ if (*endp != '\0') {
+ fatal("-v must be followed by a number");
+ }
+ 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");
+ }
+
+ if (dir != NULL) {
+ filename = argv[isc_commandline_index];
+ } else {
+ result = isc_file_splitpath(mctx, argv[isc_commandline_index],
+ &dir, &filename);
+ if (result != ISC_R_SUCCESS) {
+ fatal("cannot process filename %s: %s",
+ argv[isc_commandline_index],
+ isc_result_totext(result));
+ }
+ if (strcmp(dir, ".") == 0) {
+ isc_mem_free(mctx, dir);
+ dir = NULL;
+ }
+ }
+
+ result = dst_lib_init(mctx, engine);
+ if (result != ISC_R_SUCCESS) {
+ fatal("Could not initialize dst: %s",
+ isc_result_totext(result));
+ }
+
+ result = dst_key_fromnamedfile(
+ filename, dir, DST_TYPE_PUBLIC | DST_TYPE_PRIVATE, mctx, &key);
+ if (result != ISC_R_SUCCESS) {
+ fatal("Invalid keyfile name %s: %s", filename,
+ isc_result_totext(result));
+ }
+
+ if (id) {
+ fprintf(stdout, "%u\n", dst_key_rid(key));
+ goto cleanup;
+ }
+ dst_key_format(key, keystr, sizeof(keystr));
+
+ if (verbose > 2) {
+ fprintf(stderr, "%s: %s\n", program, keystr);
+ }
+
+ if (force) {
+ set_keyversion(key);
+ } else {
+ check_keyversion(key, keystr);
+ }
+
+ flags = dst_key_flags(key);
+ if ((flags & DNS_KEYFLAG_REVOKE) == 0) {
+ isc_stdtime_t now;
+
+ if ((flags & DNS_KEYFLAG_KSK) == 0) {
+ fprintf(stderr,
+ "%s: warning: Key is not flagged "
+ "as a KSK. Revoking a ZSK is "
+ "legal, but undefined.\n",
+ program);
+ }
+
+ isc_stdtime_get(&now);
+ dst_key_settime(key, DST_TIME_REVOKE, now);
+
+ dst_key_setflags(key, flags | DNS_KEYFLAG_REVOKE);
+
+ isc_buffer_init(&buf, newname, sizeof(newname));
+ dst_key_buildfilename(key, DST_TYPE_PUBLIC, dir, &buf);
+
+ if (access(newname, F_OK) == 0 && !force) {
+ fatal("Key file %s already exists; "
+ "use -f to force overwrite",
+ newname);
+ }
+
+ result = dst_key_tofile(key, DST_TYPE_PUBLIC | DST_TYPE_PRIVATE,
+ dir);
+ if (result != ISC_R_SUCCESS) {
+ dst_key_format(key, keystr, sizeof(keystr));
+ fatal("Failed to write key %s: %s", keystr,
+ isc_result_totext(result));
+ }
+
+ isc_buffer_clear(&buf);
+ dst_key_buildfilename(key, 0, dir, &buf);
+ printf("%s\n", newname);
+
+ /*
+ * Remove old key file, if told to (and if
+ * it isn't the same as the new file)
+ */
+ if (removefile) {
+ isc_buffer_init(&buf, oldname, sizeof(oldname));
+ dst_key_setflags(key, flags & ~DNS_KEYFLAG_REVOKE);
+ dst_key_buildfilename(key, DST_TYPE_PRIVATE, dir, &buf);
+ if (strcmp(oldname, newname) == 0) {
+ goto cleanup;
+ }
+ (void)unlink(oldname);
+ isc_buffer_clear(&buf);
+ dst_key_buildfilename(key, DST_TYPE_PUBLIC, dir, &buf);
+ (void)unlink(oldname);
+ }
+ } else {
+ dst_key_format(key, keystr, sizeof(keystr));
+ fatal("Key %s is already revoked", keystr);
+ }
+
+cleanup:
+ dst_key_free(&key);
+ dst_lib_destroy();
+ if (verbose > 10) {
+ isc_mem_stats(mctx, stdout);
+ }
+ if (dir != NULL) {
+ isc_mem_free(mctx, dir);
+ }
+ isc_mem_destroy(&mctx);
+
+ return (0);
+}
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