/*
* Copyright (C) 2015-2017 Internet Systems Consortium, Inc. ("ISC")
*
* 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 http://mozilla.org/MPL/2.0/.
*/
/*! \file */
#include <config.h>
#include <atf-c.h>
#include <unistd.h>
#include <stdlib.h>
#include <isc/buffer.h>
#include <isc/file.h>
#include <isc/stdio.h>
#include <isc/print.h>
#include <isc/types.h>
#include <dns/dnstap.h>
#include <dns/view.h>
#include "dnstest.h"
#ifdef HAVE_DNSTAP
#include <dns/dnstap.pb-c.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"
/*
* Helper functions
*/
static void
cleanup() {
(void) isc_file_remove(TAPFILE);
(void) isc_file_remove(TAPSOCK);
}
/*
* Individual unit tests
*/
ATF_TC(create);
ATF_TC_HEAD(create, tc) {
atf_tc_set_md_var(tc, "descr", "set up dnstap environment");
}
ATF_TC_BODY(create, tc) {
isc_result_t result;
dns_dtenv_t *dtenv = NULL;
struct fstrm_iothr_options *fopt;
UNUSED(tc);
cleanup();
result = dns_test_begin(NULL, ISC_TRUE);
ATF_REQUIRE(result == ISC_R_SUCCESS);
fopt = fstrm_iothr_options_init();
ATF_REQUIRE(fopt != NULL);
fstrm_iothr_options_set_num_input_queues(fopt, 1);
result = dns_dt_create(mctx, dns_dtmode_file, TAPFILE, &fopt, &dtenv);
ATF_CHECK_EQ(result, ISC_R_SUCCESS);
if (dtenv != NULL)
dns_dt_detach(&dtenv);
if (fopt != NULL)
fstrm_iothr_options_destroy(&fopt);
ATF_CHECK(isc_file_exists(TAPFILE));
fopt = fstrm_iothr_options_init();
ATF_REQUIRE(fopt != NULL);
fstrm_iothr_options_set_num_input_queues(fopt, 1);
result = dns_dt_create(mctx, dns_dtmode_unix, TAPSOCK, &fopt, &dtenv);
ATF_CHECK_EQ(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 */
ATF_CHECK(!isc_file_exists(TAPSOCK));
fopt = fstrm_iothr_options_init();
ATF_REQUIRE(fopt != NULL);
fstrm_iothr_options_set_num_input_queues(fopt, 1);
result = dns_dt_create(mctx, 33, TAPSOCK, &fopt, &dtenv);
ATF_CHECK_EQ(result, ISC_R_FAILURE);
ATF_CHECK_EQ(dtenv, NULL);
if (dtenv != NULL)
dns_dt_detach(&dtenv);
if (fopt != NULL)
fstrm_iothr_options_destroy(&fopt);
cleanup();
dns_dt_shutdown();
dns_test_end();
}
ATF_TC(send);
ATF_TC_HEAD(send, tc) {
atf_tc_set_md_var(tc, "descr", "send dnstap messages");
}
ATF_TC_BODY(send, tc) {
isc_result_t result;
dns_dtenv_t *dtenv = NULL;
dns_dthandle_t *handle = NULL;
isc_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(tc);
cleanup();
result = dns_test_begin(NULL, ISC_TRUE);
ATF_REQUIRE(result == ISC_R_SUCCESS);
result = dns_test_makeview("test", &view);
fopt = fstrm_iothr_options_init();
ATF_REQUIRE(fopt != NULL);
fstrm_iothr_options_set_num_input_queues(fopt, 1);
result = dns_dt_create(mctx, dns_dtmode_file, TAPFILE, &fopt, &dtenv);
ATF_REQUIRE(result == ISC_R_SUCCESS);
dns_dt_attach(dtenv, &view->dtenv);
view->dttypes = DNS_DTTYPE_ALL;
/*
* Set up some test data
*/
dns_fixedname_init(&zfname);
zname = dns_fixedname_name(&zfname);
isc_buffer_constinit(&zb, "example.com.", 12);
isc_buffer_add(&zb, 12);
result = dns_name_fromtext(zname, &zb, NULL, 0, NULL);
ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
memset(&zr, 0, sizeof(zr));
isc_buffer_init(&zb, zone, sizeof(zone));
result = dns_compress_init(&cctx, -1, mctx);
dns_compress_setmethods(&cctx, DNS_COMPRESS_NONE);
result = dns_name_towire(zname, &cctx, &zb);
ATF_REQUIRE_EQ(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);
ATF_REQUIRE_EQ(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);
ATF_REQUIRE_EQ(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);
ATF_REQUIRE_EQ(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);
ATF_REQUIRE_EQ(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, ISC_FALSE, &zr, &p, &f, m);
dns_dt_send(view, dt, q, r, ISC_FALSE, &zr, NULL, &f, m);
dns_dt_send(view, dt, q, r, ISC_FALSE, &zr, &p, NULL, m);
dns_dt_send(view, dt, q, r, ISC_FALSE, &zr, NULL, NULL, m);
dns_dt_send(view, dt, q, r, ISC_TRUE, &zr, &p, &f, m);
dns_dt_send(view, dt, q, r, ISC_TRUE, &zr, NULL, &f, m);
dns_dt_send(view, dt, q, r, ISC_TRUE, &zr, &p, NULL, m);
dns_dt_send(view, dt, q, r, ISC_TRUE, &zr, NULL, NULL, m);
}
dns_dt_detach(&view->dtenv);
dns_dt_detach(&dtenv);
dns_dt_shutdown();
dns_view_detach(&view);
/*
* XXX now read back and check content.
*/
result = dns_dt_open(TAPFILE, dns_dtmode_file, mctx, &handle);
ATF_REQUIRE_EQ(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);
ATF_CHECK_EQ(result, ISC_R_SUCCESS);
if (result != ISC_R_SUCCESS) {
n++;
continue;
}
ATF_CHECK_EQ(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();
dns_test_end();
}
ATF_TC(totext);
ATF_TC_HEAD(totext, tc) {
atf_tc_set_md_var(tc, "descr", "dnstap message to text");
}
ATF_TC_BODY(totext, tc) {
isc_result_t result;
dns_dthandle_t *handle = NULL;
isc_uint8_t *data;
size_t dsize;
FILE *fp = NULL;
UNUSED(tc);
result = dns_test_begin(NULL, ISC_TRUE);
ATF_REQUIRE(result == ISC_R_SUCCESS);
result = dns_dt_open(TAPSAVED, dns_dtmode_file, mctx, &handle);
ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
result = isc_stdio_open(TAPTEXT, "r", &fp);
ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
/* make sure text conversion gets the right local time */
setenv("TZ", "PST8", 1);
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);
ATF_CHECK_EQ(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);
ATF_CHECK_EQ(result, ISC_R_SUCCESS);
if (result != ISC_R_SUCCESS)
continue;
isc_buffer_allocate(mctx, &b, 2048);
ATF_CHECK(b != NULL);
if (b == NULL)
break;
/* convert to text and compare */
result = dns_dt_datatotext(dtdata, &b);
ATF_CHECK_EQ(result, ISC_R_SUCCESS);
ATF_CHECK_STREQ((char *) isc_buffer_base(b), s);
dns_dtdata_free(&dtdata);
isc_buffer_free(&b);
}
if (handle != NULL)
dns_dt_close(&handle);
cleanup();
dns_test_end();
}
#else
ATF_TC(untested);
ATF_TC_HEAD(untested, tc) {
atf_tc_set_md_var(tc, "descr", "skipping dnstap test");
}
ATF_TC_BODY(untested, tc) {
UNUSED(tc);
atf_tc_skip("dnstap not available");
}
#endif
/*
* Main
*/
ATF_TP_ADD_TCS(tp) {
#ifdef HAVE_DNSTAP
ATF_TP_ADD_TC(tp, create);
ATF_TP_ADD_TC(tp, send);
ATF_TP_ADD_TC(tp, totext);
#else
ATF_TP_ADD_TC(tp, untested);
#endif
return (atf_no_error());
}