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bind/tests/dns/dnstap_test.c
Ondřej Surý 2c3b2dabe9 Move all the unit tests to /tests/<libname>/ 
The unit tests are now using a common base, which means that
lib/dns/tests/ code now has to include lib/isc/include/isc/test.h and
link with lib/isc/test.c and lib/ns/tests has to include both libisc and
libdns parts.

Instead of cross-linking code between the directories, move the
/lib/<foo>/test.c to /tests/<foo>.c and /lib/<foo>/include/<foo>test.h
to /tests/include/tests/<foo>.h and create a single libtest.la
convenience library in /tests/.

At the same time, move the /lib/<foo>/tests/ to /tests/<foo>/ (but keep
it symlinked to the old location) and adjust paths accordingly.  In few
places, we are now using absolute paths instead of relative paths,
because the directory level has changed.  By moving the directories
under the /tests/ directory, the test-related code is kept in a single
place and we can avoid referencing files between libns->libdns->libisc
which is unhealthy because they live in a separate Makefile-space.

In the future, the /bin/tests/ should be merged to /tests/ and symlink
kept, and the /fuzz/ directory moved to /tests/fuzz/.
2022-05-28 14:53:02 -07:00

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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 <inttypes.h>
#include <sched.h> /* IWYU pragma: keep */
#include <setjmp.h>
#include <stdarg.h>
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#define UNIT_TESTING
#include <cmocka.h>
#include <fstrm.h>
#include <protobuf-c/protobuf-c.h>
#include <isc/buffer.h>
#include <isc/file.h>
#include <isc/print.h>
#include <isc/stdio.h>
#include <isc/types.h>
#include <isc/util.h>
#include <dns/dnstap.h>
#include <dns/view.h>
#include <tests/dns.h>
#define TAPFILE TESTS_DIR "/testdata/dnstap/dnstap.file"
#define TAPSOCK TESTS_DIR "/testdata/dnstap/dnstap.sock"
#define TAPSAVED TESTS_DIR "/testdata/dnstap/dnstap.saved"
#define TAPTEXT TESTS_DIR "/testdata/dnstap/dnstap.text"
static int
cleanup(void **state __attribute__((__unused__))) {
(void)isc_file_remove(TAPFILE);
(void)isc_file_remove(TAPSOCK);
return (0);
}
static int
setup(void **state) {
/*
* Make sure files are cleaned up before the test runs.
*/
cleanup(state);
/*
* Make sure text conversions match the time zone in which
* the testdata was originally generated.
*/
setenv("TZ", "PDT8", 1);
return (0);
}
/* set up dnstap environment */
ISC_RUN_TEST_IMPL(dns_dt_create) {
isc_result_t result;
dns_dtenv_t *dtenv = NULL;
struct fstrm_iothr_options *fopt;
fopt = fstrm_iothr_options_init();
assert_non_null(fopt);
fstrm_iothr_options_set_num_input_queues(fopt, 1);
result = dns_dt_create(mctx, dns_dtmode_file, TAPFILE, &fopt, NULL,
&dtenv);
assert_int_equal(result, ISC_R_SUCCESS);
if (dtenv != NULL) {
dns_dt_detach(&dtenv);
}
if (fopt != NULL) {
fstrm_iothr_options_destroy(&fopt);
}
assert_true(isc_file_exists(TAPFILE));
fopt = fstrm_iothr_options_init();
assert_non_null(fopt);
fstrm_iothr_options_set_num_input_queues(fopt, 1);
result = dns_dt_create(mctx, dns_dtmode_unix, TAPSOCK, &fopt, NULL,
&dtenv);
assert_int_equal(result, ISC_R_SUCCESS);
if (dtenv != NULL) {
dns_dt_detach(&dtenv);
}
if (fopt != NULL) {
fstrm_iothr_options_destroy(&fopt);
}
/* 'create' should succeed, but the file shouldn't exist yet */
assert_false(isc_file_exists(TAPSOCK));
fopt = fstrm_iothr_options_init();
assert_non_null(fopt);
fstrm_iothr_options_set_num_input_queues(fopt, 1);
result = dns_dt_create(mctx, 33, TAPSOCK, &fopt, NULL, &dtenv);
assert_int_equal(result, ISC_R_FAILURE);
assert_null(dtenv);
if (dtenv != NULL) {
dns_dt_detach(&dtenv);
}
if (fopt != NULL) {
fstrm_iothr_options_destroy(&fopt);
}
}
/* send dnstap messages */
ISC_RUN_TEST_IMPL(dns_dt_send) {
isc_result_t result;
dns_dtenv_t *dtenv = NULL;
dns_dthandle_t *handle = NULL;
uint8_t *data;
size_t dsize;
unsigned char zone[DNS_NAME_MAXWIRE];
unsigned char qambuffer[4096], rambuffer[4096];
unsigned char qrmbuffer[4096], rrmbuffer[4096];
isc_buffer_t zb, qamsg, ramsg, qrmsg, rrmsg;
size_t qasize, qrsize, rasize, rrsize;
dns_fixedname_t zfname;
dns_name_t *zname;
dns_dtmsgtype_t dt;
dns_view_t *view = NULL;
dns_compress_t cctx;
isc_region_t zr;
isc_sockaddr_t qaddr;
isc_sockaddr_t raddr;
struct in_addr in;
isc_stdtime_t now;
isc_time_t p, f;
struct fstrm_iothr_options *fopt;
result = dns_test_makeview("test", false, &view);
assert_int_equal(result, ISC_R_SUCCESS);
fopt = fstrm_iothr_options_init();
assert_non_null(fopt);
fstrm_iothr_options_set_num_input_queues(fopt, 1);
result = dns_dt_create(mctx, dns_dtmode_file, TAPFILE, &fopt, NULL,
&dtenv);
assert_int_equal(result, ISC_R_SUCCESS);
dns_dt_attach(dtenv, &view->dtenv);
view->dttypes = DNS_DTTYPE_ALL;
/*
* Set up some test data
*/
zname = dns_fixedname_initname(&zfname);
isc_buffer_constinit(&zb, "example.com.", 12);
isc_buffer_add(&zb, 12);
result = dns_name_fromtext(zname, &zb, NULL, 0, NULL);
assert_int_equal(result, ISC_R_SUCCESS);
memset(&zr, 0, sizeof(zr));
isc_buffer_init(&zb, zone, sizeof(zone));
result = dns_compress_init(&cctx, -1, mctx);
assert_int_equal(result, ISC_R_SUCCESS);
dns_compress_setmethods(&cctx, DNS_COMPRESS_NONE);
result = dns_name_towire(zname, &cctx, &zb);
assert_int_equal(result, ISC_R_SUCCESS);
dns_compress_invalidate(&cctx);
isc_buffer_usedregion(&zb, &zr);
in.s_addr = inet_addr("10.53.0.1");
isc_sockaddr_fromin(&qaddr, &in, 2112);
in.s_addr = inet_addr("10.53.0.2");
isc_sockaddr_fromin(&raddr, &in, 2112);
isc_stdtime_get(&now);
isc_time_set(&p, now - 3600, 0); /* past */
isc_time_set(&f, now + 3600, 0); /* future */
result = dns_test_getdata("testdata/dnstap/query.auth", qambuffer,
sizeof(qambuffer), &qasize);
assert_int_equal(result, ISC_R_SUCCESS);
isc_buffer_init(&qamsg, qambuffer, qasize);
isc_buffer_add(&qamsg, qasize);
result = dns_test_getdata("testdata/dnstap/response.auth", rambuffer,
sizeof(rambuffer), &rasize);
assert_int_equal(result, ISC_R_SUCCESS);
isc_buffer_init(&ramsg, rambuffer, rasize);
isc_buffer_add(&ramsg, rasize);
result = dns_test_getdata("testdata/dnstap/query.recursive", qrmbuffer,
sizeof(qrmbuffer), &qrsize);
assert_int_equal(result, ISC_R_SUCCESS);
isc_buffer_init(&qrmsg, qrmbuffer, qrsize);
isc_buffer_add(&qrmsg, qrsize);
result = dns_test_getdata("testdata/dnstap/response.recursive",
rrmbuffer, sizeof(rrmbuffer), &rrsize);
assert_int_equal(result, ISC_R_SUCCESS);
isc_buffer_init(&rrmsg, rrmbuffer, rrsize);
isc_buffer_add(&rrmsg, rrsize);
for (dt = DNS_DTTYPE_SQ; dt <= DNS_DTTYPE_TR; dt <<= 1) {
isc_buffer_t *m;
isc_sockaddr_t *q = &qaddr, *r = &raddr;
switch (dt) {
case DNS_DTTYPE_AQ:
m = &qamsg;
break;
case DNS_DTTYPE_AR:
m = &ramsg;
break;
default:
m = &qrmsg;
if ((dt & DNS_DTTYPE_RESPONSE) != 0) {
m = &ramsg;
}
break;
}
dns_dt_send(view, dt, q, r, false, &zr, &p, &f, m);
dns_dt_send(view, dt, q, r, false, &zr, NULL, &f, m);
dns_dt_send(view, dt, q, r, false, &zr, &p, NULL, m);
dns_dt_send(view, dt, q, r, false, &zr, NULL, NULL, m);
dns_dt_send(view, dt, q, r, true, &zr, &p, &f, m);
dns_dt_send(view, dt, q, r, true, &zr, NULL, &f, m);
dns_dt_send(view, dt, q, r, true, &zr, &p, NULL, m);
dns_dt_send(view, dt, q, r, true, &zr, NULL, NULL, m);
}
dns_dt_detach(&view->dtenv);
dns_dt_detach(&dtenv);
dns_view_detach(&view);
result = dns_dt_open(TAPFILE, dns_dtmode_file, mctx, &handle);
assert_int_equal(result, ISC_R_SUCCESS);
while (dns_dt_getframe(handle, &data, &dsize) == ISC_R_SUCCESS) {
dns_dtdata_t *dtdata = NULL;
isc_region_t r;
static dns_dtmsgtype_t expected = DNS_DTTYPE_SQ;
static int n = 0;
r.base = data;
r.length = dsize;
result = dns_dt_parse(mctx, &r, &dtdata);
assert_int_equal(result, ISC_R_SUCCESS);
if (result != ISC_R_SUCCESS) {
n++;
continue;
}
assert_int_equal(dtdata->type, expected);
if (++n % 8 == 0) {
expected <<= 1;
}
dns_dtdata_free(&dtdata);
}
if (fopt != NULL) {
fstrm_iothr_options_destroy(&fopt);
}
if (handle != NULL) {
dns_dt_close(&handle);
}
}
/* dnstap message to text */
ISC_RUN_TEST_IMPL(dns_dt_totext) {
isc_result_t result;
dns_dthandle_t *handle = NULL;
uint8_t *data;
size_t dsize;
FILE *fp = NULL;
UNUSED(state);
result = dns_dt_open(TAPSAVED, dns_dtmode_file, mctx, &handle);
assert_int_equal(result, ISC_R_SUCCESS);
result = isc_stdio_open(TAPTEXT, "r", &fp);
assert_int_equal(result, ISC_R_SUCCESS);
while (dns_dt_getframe(handle, &data, &dsize) == ISC_R_SUCCESS) {
dns_dtdata_t *dtdata = NULL;
isc_buffer_t *b = NULL;
isc_region_t r;
char s[BUFSIZ], *p;
r.base = data;
r.length = dsize;
/* read the corresponding line of text */
p = fgets(s, sizeof(s), fp);
assert_ptr_equal(p, s);
if (p == NULL) {
break;
}
p = strchr(p, '\n');
if (p != NULL) {
*p = '\0';
}
/* parse dnstap frame */
result = dns_dt_parse(mctx, &r, &dtdata);
assert_int_equal(result, ISC_R_SUCCESS);
if (result != ISC_R_SUCCESS) {
continue;
}
isc_buffer_allocate(mctx, &b, 2048);
assert_non_null(b);
if (b == NULL) {
break;
}
/* convert to text and compare */
result = dns_dt_datatotext(dtdata, &b);
assert_int_equal(result, ISC_R_SUCCESS);
assert_string_equal((char *)isc_buffer_base(b), s);
dns_dtdata_free(&dtdata);
isc_buffer_free(&b);
}
if (handle != NULL) {
dns_dt_close(&handle);
}
}
ISC_TEST_LIST_START
ISC_TEST_ENTRY_CUSTOM(dns_dt_create, setup, cleanup)
ISC_TEST_ENTRY_CUSTOM(dns_dt_send, setup, cleanup)
ISC_TEST_ENTRY_CUSTOM(dns_dt_totext, setup, cleanup)
ISC_TEST_LIST_END
ISC_TEST_MAIN
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