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-rw-r--r--src/utils/kzonesign/main.c224
1 files changed, 224 insertions, 0 deletions
diff --git a/src/utils/kzonesign/main.c b/src/utils/kzonesign/main.c
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+++ b/src/utils/kzonesign/main.c
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+/* Copyright (C) 2020 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <getopt.h>
+#include <stdlib.h>
+
+#include "knot/conf/conf.h"
+#include "knot/updates/zone-update.h"
+#include "knot/zone/zone-load.h"
+#include "knot/zone/zonefile.h"
+#include "utils/common/params.h"
+
+#define PROGRAM_NAME "kzonesign"
+
+static const char *global_outdir = NULL;
+
+// copy-pasted from keymgr
+static bool init_conf(const char *confdb)
+{
+ size_t max_conf_size = (size_t)CONF_MAPSIZE * 1024 * 1024;
+
+ conf_flag_t flags = CONF_FNOHOSTNAME | CONF_FOPTMODULES;
+ if (confdb != NULL) {
+ flags |= CONF_FREADONLY;
+ }
+
+ conf_t *new_conf = NULL;
+ int ret = conf_new(&new_conf, conf_schema, confdb, max_conf_size, flags);
+ if (ret != KNOT_EOK) {
+ printf("Failed opening configuration database %s (%s)\n",
+ (confdb == NULL ? "" : confdb), knot_strerror(ret));
+ return false;
+ }
+ conf_update(new_conf, CONF_UPD_FNONE);
+ return true;
+}
+
+static void print_help(void)
+{
+ printf("Usage: %s [parameters] -c <conf_file> <zone_name>\n"
+ "\n"
+ "Parameters:\n"
+ " -o, --outdir <dir_name> Output directory.\n"
+ " -r, --rollover Allow key rollovers and NSEC3 re-salt.\n"
+ " -t, --time <timestamp> Current time specification.\n"
+ " (default current UNIX time)\n"
+ " -h, --help Print the program help.\n"
+ " -V, --version Print the program version.\n"
+ "\n",
+ PROGRAM_NAME);
+}
+
+int main(int argc, char *argv[])
+{
+ const char *confile = NULL, *zone_str = NULL;
+ knot_dname_t *zone_name = NULL;
+ zone_contents_t *unsigned_conts = NULL;
+ zone_t *zone_struct = NULL;
+ zone_update_t up = { 0 };
+ knot_lmdb_db_t kasp_db = { 0 };
+ zone_sign_roll_flags_t rollover = 0;
+ int64_t timestamp = 0;
+ zone_sign_reschedule_t next_sign = { 0 };
+
+ struct option opts[] = {
+ { "config", required_argument, NULL, 'c' },
+ { "outdir", required_argument, NULL, 'o' },
+ { "rollover", no_argument, NULL, 'r' },
+ { "time", required_argument, NULL, 't' },
+ { "help", no_argument, NULL, 'h' },
+ { "version", no_argument, NULL, 'V' },
+ { NULL }
+ };
+
+ tzset();
+
+ int opt;
+ while ((opt = getopt_long(argc, argv, "c:o:rt:hV", opts, NULL)) != -1) {
+ switch (opt) {
+ case 'c':
+ confile = optarg;
+ break;
+ case 'o':
+ global_outdir = optarg;
+ break;
+ case 'r':
+ rollover = KEY_ROLL_ALLOW_ALL;
+ break;
+ case 't':
+ timestamp = atol(optarg);
+ if (timestamp <= 0) {
+ print_help();
+ return EXIT_FAILURE;
+ }
+ break;
+ case 'h':
+ print_help();
+ return EXIT_SUCCESS;
+ case 'V':
+ print_version(PROGRAM_NAME);
+ return EXIT_SUCCESS;
+ default:
+ print_help();
+ return EXIT_FAILURE;
+ }
+ }
+ if (confile == NULL || argc - optind != 1) {
+ print_help();
+ return EXIT_FAILURE;
+ }
+
+ zone_str = argv[optind];
+ zone_name = knot_dname_from_str_alloc(zone_str);
+ if (zone_name == NULL) {
+ printf("Invalid zone name '%s'\n", zone_str);
+ return EXIT_FAILURE;
+ }
+
+ if (!init_conf(NULL)) {
+ free(zone_name);
+ return EXIT_FAILURE;
+ }
+
+ int ret = conf_import(conf(), confile, true, false);
+ if (ret != KNOT_EOK) {
+ printf("Failed opening configuration file '%s' (%s)\n",
+ confile, knot_strerror(ret));
+ goto fail;
+ }
+
+ conf_val_t val = conf_zone_get(conf(), C_DOMAIN, zone_name);
+ if (val.code != KNOT_EOK) {
+ printf("Zone '%s' not configured\n", zone_str);
+ ret = val.code;
+ goto fail;
+ }
+ val = conf_zone_get(conf(), C_DNSSEC_POLICY, zone_name);
+ if (val.code != KNOT_EOK) {
+ printf("Waring: DNSSEC policy not configured for zone '%s', taking defaults\n", zone_str);
+ }
+
+ zone_struct = zone_new(zone_name);
+ if (zone_struct == NULL) {
+ printf("out of memory\n");
+ ret = KNOT_ENOMEM;
+ goto fail;
+ }
+
+ ret = zone_load_contents(conf(), zone_name, &unsigned_conts, false);
+ if (ret != KNOT_EOK) {
+ printf("Failed to load zone contents (%s)\n", knot_strerror(ret));
+ goto fail;
+ }
+
+ ret = zone_update_from_contents(&up, zone_struct, unsigned_conts, UPDATE_FULL);
+ if (ret != KNOT_EOK) {
+ printf("Failed to initialize zone update (%s)\n", knot_strerror(ret));
+ zone_contents_deep_free(unsigned_conts);
+ goto fail;
+ }
+
+ kasp_db_ensure_init(&kasp_db, conf());
+ zone_struct->kaspdb = &kasp_db;
+
+ ret = knot_dnssec_zone_sign(&up, 0, rollover, timestamp, &next_sign);
+ if (ret == KNOT_DNSSEC_ENOKEY) { // exception: allow generating initial keys
+ rollover = KEY_ROLL_ALLOW_ALL;
+ ret = knot_dnssec_zone_sign(&up, 0, rollover, timestamp, &next_sign);
+ }
+ if (ret != KNOT_EOK) {
+ printf("Failed to sign the zone (%s)\n", knot_strerror(ret));
+ zone_update_clear(&up);
+ goto fail;
+ }
+
+ if (global_outdir == NULL) {
+ char *zonefile = conf_zonefile(conf(), zone_name);
+ ret = zonefile_write(zonefile, up.new_cont);
+ free(zonefile);
+ } else {
+ zone_contents_t *temp = zone_struct->contents;
+ zone_struct->contents = up.new_cont;
+ ret = zone_dump_to_dir(conf(), zone_struct, global_outdir);
+ zone_struct->contents = temp;
+ }
+ zone_update_clear(&up);
+ if (ret != KNOT_EOK) {
+ printf("Failed to flush signed zone file (%s)\n", knot_strerror(ret));
+ goto fail;
+ }
+
+ printf("Next signing: %"KNOT_TIME_PRINTF"\n", next_sign.next_sign);
+ if (rollover) {
+ printf("Next roll-over: %"KNOT_TIME_PRINTF"\n", next_sign.next_rollover);
+ if (next_sign.next_nsec3resalt) {
+ printf("Next NSEC3 re-salt: %"KNOT_TIME_PRINTF"\n", next_sign.next_nsec3resalt);
+ }
+ if (next_sign.plan_ds_check) {
+ printf("KSK submittion to parent zone needed\n");
+ }
+ }
+
+fail:
+ if (kasp_db.path != NULL) {
+ knot_lmdb_deinit(&kasp_db);
+ }
+ zone_free(&zone_struct);
+ conf_free(conf());
+ free(zone_name);
+ return ret == KNOT_EOK ? EXIT_SUCCESS : EXIT_FAILURE;
+}
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