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/*
* 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.
*/
#include <stdlib.h>
#include <string.h>
#include <isc/app.h>
#include <isc/base64.h>
#include <isc/hash.h>
#include <isc/log.h>
#include <isc/managers.h>
#include <isc/mem.h>
#include <isc/netmgr.h>
#include <isc/print.h>
#include <isc/random.h>
#include <isc/result.h>
#include <isc/sockaddr.h>
#include <isc/task.h>
#include <isc/util.h>
#include <dns/dispatch.h>
#include <dns/fixedname.h>
#include <dns/keyvalues.h>
#include <dns/message.h>
#include <dns/name.h>
#include <dns/request.h>
#include <dns/result.h>
#include <dns/tkey.h>
#include <dns/tsig.h>
#include <dns/view.h>
#define CHECK(str, x) \
{ \
if ((x) != ISC_R_SUCCESS) { \
fprintf(stderr, "I:%s: %s\n", (str), \
isc_result_totext(x)); \
exit(-1); \
} \
}
#define RUNCHECK(x) RUNTIME_CHECK((x) == ISC_R_SUCCESS)
#define TIMEOUT 30
static char *ip_address = NULL;
static int port;
static isc_mem_t *mctx = NULL;
static dns_tsigkey_t *tsigkey = NULL;
static dns_tsig_keyring_t *ring = NULL;
static dns_requestmgr_t *requestmgr = NULL;
static void
recvquery(isc_task_t *task, isc_event_t *event) {
dns_requestevent_t *reqev = (dns_requestevent_t *)event;
isc_result_t result;
dns_message_t *query = NULL, *response = NULL;
UNUSED(task);
REQUIRE(reqev != NULL);
if (reqev->result != ISC_R_SUCCESS) {
fprintf(stderr, "I:request event result: %s\n",
isc_result_totext(reqev->result));
exit(-1);
}
query = reqev->ev_arg;
dns_message_create(mctx, DNS_MESSAGE_INTENTPARSE, &response);
result = dns_request_getresponse(reqev->request, response,
DNS_MESSAGEPARSE_PRESERVEORDER);
CHECK("dns_request_getresponse", result);
if (response->rcode != dns_rcode_noerror) {
result = dns_result_fromrcode(response->rcode);
fprintf(stderr, "I:response rcode: %s\n",
isc_result_totext(result));
exit(-1);
}
result = dns_tkey_processdeleteresponse(query, response, ring);
CHECK("dns_tkey_processdhresponse", result);
dns_message_detach(&query);
dns_message_detach(&response);
dns_request_destroy(&reqev->request);
isc_event_free(&event);
isc_app_shutdown();
return;
}
static void
sendquery(isc_task_t *task, isc_event_t *event) {
struct in_addr inaddr;
isc_sockaddr_t address;
isc_result_t result;
dns_message_t *query = NULL;
dns_request_t *request = NULL;
isc_event_free(&event);
result = ISC_R_FAILURE;
if (inet_pton(AF_INET, ip_address, &inaddr) != 1) {
CHECK("inet_pton", result);
}
isc_sockaddr_fromin(&address, &inaddr, port);
dns_message_create(mctx, DNS_MESSAGE_INTENTRENDER, &query);
result = dns_tkey_builddeletequery(query, tsigkey);
CHECK("dns_tkey_builddeletequery", result);
result = dns_request_create(requestmgr, query, NULL, &address,
DNS_REQUESTOPT_TCP, tsigkey, TIMEOUT, 0, 0,
task, recvquery, query, &request);
CHECK("dns_request_create", result);
}
int
main(int argc, char **argv) {
char *keyname = NULL;
isc_nm_t *netmgr = NULL;
isc_taskmgr_t *taskmgr = NULL;
isc_sockaddr_t bind_any;
dns_dispatchmgr_t *dispatchmgr = NULL;
dns_dispatch_t *dispatchv4 = NULL;
dns_view_t *view = NULL;
dns_tkeyctx_t *tctx = NULL;
dst_key_t *dstkey = NULL;
isc_log_t *log = NULL;
isc_logconfig_t *logconfig = NULL;
isc_task_t *task = NULL;
isc_result_t result;
int type;
RUNCHECK(isc_app_start());
if (argc < 4) {
fprintf(stderr, "I:no key to delete\n");
exit(-1);
}
if (strcmp(argv[1], "-r") == 0) {
fprintf(stderr, "I:The -r options has been deprecated\n");
exit(-1);
}
ip_address = argv[1];
port = atoi(argv[2]);
keyname = argv[3];
isc_mem_create(&mctx);
isc_log_create(mctx, &log, &logconfig);
RUNCHECK(dst_lib_init(mctx, NULL));
isc_managers_create(mctx, 1, 0, &netmgr, &taskmgr, NULL);
RUNCHECK(isc_task_create(taskmgr, 0, &task));
RUNCHECK(dns_dispatchmgr_create(mctx, netmgr, &dispatchmgr));
isc_sockaddr_any(&bind_any);
RUNCHECK(dns_dispatch_createudp(dispatchmgr, &bind_any, &dispatchv4));
RUNCHECK(dns_requestmgr_create(mctx, taskmgr, dispatchmgr, dispatchv4,
NULL, &requestmgr));
RUNCHECK(dns_tsigkeyring_create(mctx, &ring));
RUNCHECK(dns_tkeyctx_create(mctx, &tctx));
RUNCHECK(dns_view_create(mctx, 0, "_test", &view));
dns_view_setkeyring(view, ring);
RUNCHECK(isc_app_onrun(mctx, task, sendquery, NULL));
type = DST_TYPE_PUBLIC | DST_TYPE_PRIVATE | DST_TYPE_KEY;
result = dst_key_fromnamedfile(keyname, NULL, type, mctx, &dstkey);
CHECK("dst_key_fromnamedfile", result);
result = dns_tsigkey_createfromkey(dst_key_name(dstkey),
DNS_TSIG_HMACMD5_NAME, dstkey, true,
NULL, 0, 0, mctx, ring, &tsigkey);
dst_key_free(&dstkey);
CHECK("dns_tsigkey_createfromkey", result);
(void)isc_app_run();
dns_requestmgr_shutdown(requestmgr);
dns_requestmgr_detach(&requestmgr);
dns_dispatch_detach(&dispatchv4);
dns_dispatchmgr_detach(&dispatchmgr);
isc_task_shutdown(task);
isc_task_detach(&task);
isc_managers_destroy(&netmgr, &taskmgr, NULL);
dns_tsigkeyring_detach(&ring);
dns_tsigkey_detach(&tsigkey);
dns_tkeyctx_destroy(&tctx);
dns_view_detach(&view);
isc_log_destroy(&log);
dst_lib_destroy();
isc_mem_destroy(&mctx);
isc_app_finish();
return (0);
}
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