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-rw-r--r--src/utils/kzonecheck/main.c148
-rw-r--r--src/utils/kzonecheck/zone_check.c91
-rw-r--r--src/utils/kzonecheck/zone_check.h22
3 files changed, 261 insertions, 0 deletions
diff --git a/src/utils/kzonecheck/main.c b/src/utils/kzonecheck/main.c
new file mode 100644
index 0000000..2e8ce71
--- /dev/null
+++ b/src/utils/kzonecheck/main.c
@@ -0,0 +1,148 @@
+/* Copyright (C) 2018 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 <http://www.gnu.org/licenses/>.
+*/
+
+#include <getopt.h>
+#include <libgen.h>
+#include <stdio.h>
+
+#include "contrib/time.h"
+#include "libknot/libknot.h"
+#include "knot/common/log.h"
+#include "utils/common/params.h"
+#include "utils/kzonecheck/zone_check.h"
+
+#define PROGRAM_NAME "kzonecheck"
+
+static void print_help(void)
+{
+ printf("Usage: %s [parameters] <filename>\n"
+ "\n"
+ "Parameters:\n"
+ " -o, --origin <zone_origin> Zone name.\n"
+ " (default filename without .zone)\n"
+ " -t, --time <timestamp> Current time specification.\n"
+ " (default current UNIX time)\n"
+ " -v, --verbose Enable debug output.\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 *origin = NULL;
+ bool verbose = false;
+ knot_time_t check_time = (knot_time_t)time(NULL);
+
+ /* Long options. */
+ struct option opts[] = {
+ { "origin", required_argument, NULL, 'o' },
+ { "time", required_argument, NULL, 't' },
+ { "verbose", no_argument, NULL, 'v' },
+ { "help", no_argument, NULL, 'h' },
+ { "version", no_argument, NULL, 'V' },
+ { NULL }
+ };
+
+ /* Parse command line arguments */
+ int opt = 0;
+ while ((opt = getopt_long(argc, argv, "o:t:vVh", opts, NULL)) != -1) {
+ switch (opt) {
+ case 'o':
+ origin = optarg;
+ break;
+ case 'v':
+ verbose = true;
+ break;
+ case 'h':
+ print_help();
+ return EXIT_SUCCESS;
+ case 'V':
+ print_version(PROGRAM_NAME);
+ return EXIT_SUCCESS;
+ case 't':
+ if (knot_time_parse("YMDhms|#|+-#U|+-#",
+ optarg, &check_time) != KNOT_EOK) {
+ fprintf(stderr, "Unknown time format\n");
+ return EXIT_FAILURE;
+ }
+ break;
+ default:
+ print_help();
+ return EXIT_FAILURE;
+ }
+ }
+
+ /* Check if there's at least one remaining non-option. */
+ if (optind >= argc) {
+ fprintf(stderr, "Expected zone file name\n");
+ print_help();
+ return EXIT_FAILURE;
+ }
+
+ char *filename = argv[optind];
+
+ char *zonename;
+ if (origin == NULL) {
+ /* Get zone name from file name. */
+ const char *ext = ".zone";
+ zonename = basename(filename);
+ if (strcmp(zonename + strlen(zonename) - strlen(ext), ext) == 0) {
+ zonename = strndup(zonename, strlen(zonename) - strlen(ext));
+ } else {
+ zonename = strdup(zonename);
+ }
+ } else {
+ zonename = strdup(origin);
+ }
+
+ log_init();
+ log_levels_set(LOG_TARGET_STDOUT, LOG_SOURCE_ANY, 0);
+ log_levels_set(LOG_TARGET_STDERR, LOG_SOURCE_ANY, 0);
+ log_levels_set(LOG_TARGET_SYSLOG, LOG_SOURCE_ANY, 0);
+ log_flag_set(LOG_FLAG_NOTIMESTAMP | LOG_FLAG_NOINFO);
+ if (verbose) {
+ log_levels_add(LOG_TARGET_STDOUT, LOG_SOURCE_ANY, LOG_UPTO(LOG_DEBUG));
+ }
+
+ knot_dname_t *dname = knot_dname_from_str_alloc(zonename);
+ free(zonename);
+ int ret = zone_check(filename, dname, stdout, (time_t)check_time);
+ knot_dname_free(dname, NULL);
+
+ log_close();
+
+ switch (ret) {
+ case KNOT_EOK:
+ if (verbose) {
+ fprintf(stdout, "No semantic error found\n");
+ }
+ return EXIT_SUCCESS;
+ case KNOT_EZONEINVAL:
+ fprintf(stdout, "Serious semantic error detected\n");
+ // FALLTHROUGH
+ case KNOT_ESEMCHECK:
+ return EXIT_FAILURE;
+ case KNOT_EACCES:
+ case KNOT_EFILE:
+ fprintf(stderr, "Failed to load the zone file\n");
+ return EXIT_FAILURE;
+ default:
+ fprintf(stderr, "Failed to run semantic checks (%s)\n", knot_strerror(ret));
+ return EXIT_FAILURE;
+ }
+}
diff --git a/src/utils/kzonecheck/zone_check.c b/src/utils/kzonecheck/zone_check.c
new file mode 100644
index 0000000..5ddc7d0
--- /dev/null
+++ b/src/utils/kzonecheck/zone_check.c
@@ -0,0 +1,91 @@
+/* Copyright (C) 2018 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 <http://www.gnu.org/licenses/>.
+*/
+
+#include <stdio.h>
+#include <assert.h>
+
+#include "knot/zone/contents.h"
+#include "knot/zone/zonefile.h"
+#include "utils/kzonecheck/zone_check.h"
+
+typedef struct {
+ sem_handler_t handler;
+ FILE *outfile;
+ unsigned errors[SEM_ERR_UNKNOWN + 1]; /*!< Counting errors by type. */
+ unsigned error_count; /*!< Total error count. */
+} err_handler_stats_t;
+
+static void err_callback(sem_handler_t *handler, const zone_contents_t *zone,
+ const zone_node_t *node, sem_error_t error, const char *data)
+{
+ assert(handler != NULL);
+ assert(zone != NULL);
+ err_handler_stats_t *stats = (err_handler_stats_t *)handler;
+
+ char buff[KNOT_DNAME_TXT_MAXLEN + 1] = "";
+ (void)knot_dname_to_str(buff, (node != NULL ? node->owner : zone->apex->owner),
+ sizeof(buff));
+
+ fprintf(stats->outfile, "[%s] %s%s%s\n",
+ buff, sem_error_msg(error),
+ (data != NULL ? " " : ""),
+ (data != NULL ? data : ""));
+
+ stats->errors[error]++;
+ stats->error_count++;
+}
+
+static void print_statistics(err_handler_stats_t *stats)
+{
+ fprintf(stats->outfile, "\nError summary:\n");
+ for (sem_error_t i = 0; i <= SEM_ERR_UNKNOWN; ++i) {
+ if (stats->errors[i] > 0) {
+ fprintf(stats->outfile, "%4u\t%s\n", stats->errors[i],
+ sem_error_msg(i));
+ }
+ }
+}
+
+int zone_check(const char *zone_file, const knot_dname_t *zone_name,
+ FILE *outfile, time_t time)
+{
+ err_handler_stats_t stats = {
+ .handler = { .cb = err_callback },
+ .outfile = outfile
+ };
+
+ zloader_t zl;
+ int ret = zonefile_open(&zl, zone_file, zone_name, true, time);
+ if (ret != KNOT_EOK) {
+ return ret;
+ }
+ zl.err_handler = (sem_handler_t *)&stats;
+ zl.creator->master = true;
+
+ zone_contents_t *contents = zonefile_load(&zl);
+ zonefile_close(&zl);
+ if (contents == NULL && !stats.handler.fatal_error) {
+ return KNOT_ERROR;
+ }
+ zone_contents_deep_free(contents);
+
+ if (stats.error_count > 0) {
+ print_statistics(&stats);
+ return stats.handler.fatal_error ? KNOT_EZONEINVAL : KNOT_ESEMCHECK;
+ } else {
+ return KNOT_EOK;
+ }
+}
diff --git a/src/utils/kzonecheck/zone_check.h b/src/utils/kzonecheck/zone_check.h
new file mode 100644
index 0000000..67b0f5e
--- /dev/null
+++ b/src/utils/kzonecheck/zone_check.h
@@ -0,0 +1,22 @@
+/* Copyright (C) 2017 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 <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+
+#include "libknot/libknot.h"
+
+int zone_check(const char *zone_file, const knot_dname_t *zone_name,
+ FILE *outfile, time_t time);