dns/tests/private_test.c

/*
 * Copyright (C) 2011, 2012, 2016  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/.
 */

/* $Id$ */

/*! \file */

#include <config.h>

#include <atf-c.h>

#include <unistd.h>

#include <isc/buffer.h>

#include <dns/nsec3.h>
#include <dns/private.h>
#include <dns/rdataclass.h>
#include <dns/rdatatype.h>

#include <dst/dst.h>

#include "dnstest.h"

static dns_rdatatype_t privatetype = 65534;

typedef struct {
    unsigned char alg;
    dns_keytag_t keyid;
    isc_boolean_t remove;
    isc_boolean_t complete;
} signing_testcase_t;

typedef struct {
    unsigned char hash;
    unsigned char flags;
    unsigned int iterations;
    unsigned long salt;
    isc_boolean_t remove;
    isc_boolean_t pending;
    isc_boolean_t nonsec;
} nsec3_testcase_t;

/*
 * Helper functions
 */
static void
make_signing(signing_testcase_t *testcase, dns_rdata_t *private,
         unsigned char *buf, size_t len)
{
    dns_rdata_init(private);

    buf[0] = testcase->alg;
    buf[1] = (testcase->keyid & 0xff00) >> 8;
    buf[2] = (testcase->keyid & 0xff);
    buf[3] = testcase->remove;
    buf[4] = testcase->complete;
    private->data = buf;
    private->length = len;
    private->type = privatetype;
    private->rdclass = dns_rdataclass_in;
}

static void
make_nsec3(nsec3_testcase_t *testcase, dns_rdata_t *private,
       unsigned char *pbuf)
{
    dns_rdata_nsec3param_t params;
    dns_rdata_t nsec3param = DNS_RDATA_INIT;
    unsigned char bufdata[BUFSIZ];
    isc_buffer_t buf;
    isc_uint32_t salt;
    unsigned char *sp;
    int slen = 4;

    /* for simplicity, we're using a maximum salt length of 4 */
    salt = htonl(testcase->salt);
    sp = (unsigned char *) &salt;
    while (*sp == '\0' && slen > 0) {
        slen--;
        sp++;
    }

    params.common.rdclass = dns_rdataclass_in;
    params.common.rdtype = dns_rdatatype_nsec3param;
    params.hash = testcase->hash;
    params.iterations = testcase->iterations;
    params.salt = sp;
    params.salt_length = slen;

    params.flags = testcase->flags;
    if (testcase->remove) {
        params.flags |= DNS_NSEC3FLAG_REMOVE;
        if (testcase->nonsec)
            params.flags |= DNS_NSEC3FLAG_NONSEC;
    } else {
        params.flags |= DNS_NSEC3FLAG_CREATE;
        if (testcase->pending)
            params.flags |= DNS_NSEC3FLAG_INITIAL;
    }

    isc_buffer_init(&buf, bufdata, sizeof(bufdata));
    dns_rdata_fromstruct(&nsec3param, dns_rdataclass_in,
                 dns_rdatatype_nsec3param, &params, &buf);

    dns_rdata_init(private);

    dns_nsec3param_toprivate(&nsec3param, private, privatetype,
                 pbuf, DNS_NSEC3PARAM_BUFFERSIZE + 1);
}

/*
 * Individual unit tests
 */
ATF_TC(private_signing_totext);
ATF_TC_HEAD(private_signing_totext, tc) {
    atf_tc_set_md_var(tc, "descr",
              "convert private signing records to text");
}
ATF_TC_BODY(private_signing_totext, tc) {
    isc_result_t result;
    dns_rdata_t private;
    int i;

    signing_testcase_t testcases[] = {
        { DST_ALG_RSASHA512, 12345, 0, 0 },
        { DST_ALG_RSASHA256, 54321, 1, 0 },
        { DST_ALG_NSEC3RSASHA1, 22222, 0, 1 },
        { DST_ALG_RSASHA1, 33333, 1, 1 }
    };
    const char *results[] = {
        "Signing with key 12345/RSASHA512",
        "Removing signatures for key 54321/RSASHA256",
        "Done signing with key 22222/NSEC3RSASHA1",
        "Done removing signatures for key 33333/RSASHA1"
    };
    int ncases = 4;

    UNUSED(tc);

    result = dns_test_begin(NULL, ISC_TRUE);
    ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

    for (i = 0; i < ncases; i++) {
        unsigned char data[5];
        char output[BUFSIZ];
        isc_buffer_t buf;

        isc_buffer_init(&buf, output, sizeof(output));

        make_signing(&testcases[i], &private, data, sizeof(data));
        dns_private_totext(&private, &buf);
        ATF_CHECK_STREQ(output, results[i]);
    }

    dns_test_end();
}

ATF_TC(private_nsec3_totext);
ATF_TC_HEAD(private_nsec3_totext, tc) {
    atf_tc_set_md_var(tc, "descr", "convert private chain records to text");
}
ATF_TC_BODY(private_nsec3_totext, tc) {
    isc_result_t result;
    dns_rdata_t private;
    int i;

    nsec3_testcase_t testcases[] = {
        { 1, 0, 1, 0xbeef, 0, 0, 0 },
        { 1, 1, 10, 0xdadd, 0, 0, 0 },
        { 1, 0, 20, 0xbead, 0, 1, 0 },
        { 1, 0, 30, 0xdeaf, 1, 0, 0 },
        { 1, 0, 100, 0xfeedabee, 1, 0, 1 },
    };
    const char *results[] = {
        "Creating NSEC3 chain 1 0 1 BEEF",
        "Creating NSEC3 chain 1 1 10 DADD",
        "Pending NSEC3 chain 1 0 20 BEAD",
        "Removing NSEC3 chain 1 0 30 DEAF / creating NSEC chain",
        "Removing NSEC3 chain 1 0 100 FEEDABEE"
    };
    int ncases = 5;

    UNUSED(tc);

    result = dns_test_begin(NULL, ISC_TRUE);
    ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

    for (i = 0; i < ncases; i++) {
        unsigned char data[DNS_NSEC3PARAM_BUFFERSIZE + 1];
        char output[BUFSIZ];
        isc_buffer_t buf;

        isc_buffer_init(&buf, output, sizeof(output));

        make_nsec3(&testcases[i], &private, data);
        dns_private_totext(&private, &buf);
        ATF_CHECK_STREQ(output, results[i]);
    }

    dns_test_end();
}

/*
 * Main
 */
ATF_TP_ADD_TCS(tp) {
    ATF_TP_ADD_TC(tp, private_signing_totext);
    ATF_TP_ADD_TC(tp, private_nsec3_totext);
    return (atf_no_error());
}