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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 07:24:22 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 07:24:22 +0000 |
commit | 45d6379135504814ab723b57f0eb8be23393a51d (patch) | |
tree | d4f2ec4acca824a8446387a758b0ce4238a4dffa /lib/dns/tests/dnstap_test.c | |
parent | Initial commit. (diff) | |
download | bind9-45d6379135504814ab723b57f0eb8be23393a51d.tar.xz bind9-45d6379135504814ab723b57f0eb8be23393a51d.zip |
Adding upstream version 1:9.16.44.upstream/1%9.16.44upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | lib/dns/tests/dnstap_test.c | 402 |
1 files changed, 402 insertions, 0 deletions
diff --git a/lib/dns/tests/dnstap_test.c b/lib/dns/tests/dnstap_test.c new file mode 100644 index 0000000..17addc6 --- /dev/null +++ b/lib/dns/tests/dnstap_test.c @@ -0,0 +1,402 @@ +/* + * 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. + */ + +#if HAVE_CMOCKA + +#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 <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 "dnstest.h" + +#ifdef HAVE_DNSTAP + +#include <fstrm.h> + +#include <protobuf-c/protobuf-c.h> + +#define TAPFILE "testdata/dnstap/dnstap.file" +#define TAPSOCK "testdata/dnstap/dnstap.sock" + +#define TAPSAVED "testdata/dnstap/dnstap.saved" +#define TAPTEXT "testdata/dnstap/dnstap.text" + +static int +_setup(void **state) { + isc_result_t result; + + UNUSED(state); + + result = dns_test_begin(NULL, false); + assert_int_equal(result, ISC_R_SUCCESS); + + return (0); +} + +static int +_teardown(void **state) { + UNUSED(state); + + dns_test_end(); + + return (0); +} + +static void +cleanup() { + (void)isc_file_remove(TAPFILE); + (void)isc_file_remove(TAPSOCK); +} + +/* set up dnstap environment */ +static void +create_test(void **state) { + isc_result_t result; + dns_dtenv_t *dtenv = NULL; + struct fstrm_iothr_options *fopt; + + UNUSED(state); + + cleanup(); + + fopt = fstrm_iothr_options_init(); + assert_non_null(fopt); + fstrm_iothr_options_set_num_input_queues(fopt, 1); + + result = dns_dt_create(dt_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(dt_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(dt_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); + } + + cleanup(); +} + +/* send dnstap messages */ +static void +send_test(void **state) { + 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; + + UNUSED(state); + + cleanup(); + + result = dns_test_makeview("test", &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(dt_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, dt_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, dt_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(dt_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); + } + cleanup(); +} + +/* dnstap message to text */ +static void +totext_test(void **state) { + 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, dt_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(dt_mctx, &r, &dtdata); + assert_int_equal(result, ISC_R_SUCCESS); + if (result != ISC_R_SUCCESS) { + continue; + } + + isc_buffer_allocate(dt_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); + } + cleanup(); +} +#endif /* HAVE_DNSTAP */ + +int +main(void) { +#if HAVE_DNSTAP + const struct CMUnitTest tests[] = { + cmocka_unit_test_setup_teardown(create_test, _setup, _teardown), + cmocka_unit_test_setup_teardown(send_test, _setup, _teardown), + cmocka_unit_test_setup_teardown(totext_test, _setup, _teardown), + }; + + /* make sure text conversion gets the right local time */ + setenv("TZ", "PST8", 1); + + return (cmocka_run_group_tests(tests, NULL, NULL)); +#else /* if HAVE_DNSTAP */ + print_message("1..0 # Skipped: dnstap not enabled\n"); + return (SKIPPED_TEST_EXIT_CODE); +#endif /* HAVE_DNSTAP */ +} + +#else /* HAVE_CMOCKA */ + +#include <stdio.h> + +int +main(void) { + printf("1..0 # Skipped: cmocka not available\n"); + return (SKIPPED_TEST_EXIT_CODE); +} + +#endif /* HAVE_CMOCKA */ |