# test_ntlm.c

Example how to use the NTLM primitives.

    /*
     * Copyright (c) 2006 - 2007 Kungliga Tekniska Högskolan
     * (Royal Institute of Technology, Stockholm, Sweden).
     * All rights reserved.
     *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     *
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     *
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * 3. Neither the name of KTH nor the names of its contributors may be
     *    used to endorse or promote products derived from this software without
     *    specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY KTH AND ITS CONTRIBUTORS ``AS IS'' AND ANY
     * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KTH OR ITS CONTRIBUTORS BE
     * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
     * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
     * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
     * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     */

    #include "config.h"

    #include <stdio.h>
    #include <err.h>
    #include <roken.h>
    #include <getarg.h>

    #include <krb5-types.h> /* or <inttypes.h> */
    #include <heimntlm.h>

    static int
    test_parse(void)
    {
        const char *user = "foo",
            *domain = "mydomain",
            *password = "digestpassword",
            *target = "DOMAIN";
        struct ntlm_type1 type1;
        struct ntlm_type2 type2;
        struct ntlm_type3 type3;
        struct ntlm_buf data;
        int ret, flags;

        memset(&type1, 0, sizeof(type1));

        type1.flags = NTLM_NEG_UNICODE|NTLM_NEG_TARGET|NTLM_NEG_NTLM;
        type1.domain = rk_UNCONST(domain);
        type1.hostname = NULL;
        type1.os[0] = 0;
        type1.os[1] = 0;

        ret = heim_ntlm_encode_type1(&type1, &data);
        if (ret)
            errx(1, "heim_ntlm_encode_type1");

        memset(&type1, 0, sizeof(type1));

        ret = heim_ntlm_decode_type1(&data, &type1);
        free(data.data);
        if (ret)
            errx(1, "heim_ntlm_encode_type1");

        heim_ntlm_free_type1(&type1);

        /*
         *
         */

        memset(&type2, 0, sizeof(type2));

        flags = NTLM_NEG_UNICODE | NTLM_NEG_NTLM | NTLM_TARGET_DOMAIN;
        type2.flags = flags;

        memset(type2.challenge, 0x7f, sizeof(type2.challenge));
        type2.targetname = rk_UNCONST(target);
        type2.targetinfo.data = NULL;
        type2.targetinfo.length = 0;

        ret = heim_ntlm_encode_type2(&type2, &data);
        if (ret)
            errx(1, "heim_ntlm_encode_type2");

        memset(&type2, 0, sizeof(type2));

        ret = heim_ntlm_decode_type2(&data, &type2);
        free(data.data);
        if (ret)
            errx(1, "heim_ntlm_decode_type2");

        heim_ntlm_free_type2(&type2);

        /*
         *
         */

        memset(&type3, 0, sizeof(type3));

        type3.flags = flags;
        type3.username = rk_UNCONST(user);
        type3.targetname = rk_UNCONST(target);
        type3.ws = rk_UNCONST("workstation");

        {
            struct ntlm_buf key;
            heim_ntlm_nt_key(password, &key);

            heim_ntlm_calculate_ntlm1(key.data, key.length,
                                      type2.challenge,
                                      &type3.ntlm);
            free(key.data);
        }

        ret = heim_ntlm_encode_type3(&type3, &data);
        if (ret)
            errx(1, "heim_ntlm_encode_type3");

        free(type3.ntlm.data);

        memset(&type3, 0, sizeof(type3));

        ret = heim_ntlm_decode_type3(&data, 1, &type3);
        free(data.data);
        if (ret)
            errx(1, "heim_ntlm_decode_type3");

        if (strcmp("workstation", type3.ws) != 0)
            errx(1, "type3 ws wrong");

        if (strcmp(target, type3.targetname) != 0)
            errx(1, "type3 targetname wrong");

        if (strcmp(user, type3.username) != 0)
            errx(1, "type3 username wrong");

        heim_ntlm_free_type3(&type3);

        /*
         * NTLMv2
         */

        memset(&type2, 0, sizeof(type2));

        flags = NTLM_NEG_UNICODE | NTLM_NEG_NTLM | NTLM_TARGET_DOMAIN;
        type2.flags = flags;

        memset(type2.challenge, 0x7f, sizeof(type2.challenge));
        type2.targetname = rk_UNCONST(target);
        type2.targetinfo.data = "\x00\x00";
        type2.targetinfo.length = 2;

        ret = heim_ntlm_encode_type2(&type2, &data);
        if (ret)
            errx(1, "heim_ntlm_encode_type2");

        memset(&type2, 0, sizeof(type2));

        ret = heim_ntlm_decode_type2(&data, &type2);
        free(data.data);
        if (ret)
            errx(1, "heim_ntlm_decode_type2");

        heim_ntlm_free_type2(&type2);

        return 0;
    }

    static int
    test_keys(void)
    {
        const char
            *username = "test",
            *password = "test1234",
            *target = "TESTNT";
        const unsigned char
            serverchallenge[8] = "\x67\x7f\x1c\x55\x7a\x5e\xe9\x6c";
        struct ntlm_buf infotarget, infotarget2, answer, key;
        unsigned char ntlmv2[16], ntlmv2_1[16];
        int ret;

        infotarget.length = 70;
        infotarget.data =
            "\x02\x00\x0c\x00\x54\x00\x45\x00\x53\x00\x54\x00\x4e\x00\x54\x00"
            "\x01\x00\x0c\x00\x4d\x00\x45\x00\x4d\x00\x42\x00\x45\x00\x52\x00"
            "\x03\x00\x1e\x00\x6d\x00\x65\x00\x6d\x00\x62\x00\x65\x00\x72\x00"
                "\x2e\x00\x74\x00\x65\x00\x73\x00\x74\x00\x2e\x00\x63\x00\x6f"
                "\x00\x6d\x00"
            "\x00\x00\x00\x00";

        answer.length = 0;
        answer.data = NULL;

        heim_ntlm_nt_key(password, &key);

        ret = heim_ntlm_calculate_ntlm2(key.data,
                                        key.length,
                                        username,
                                        target,
                                        serverchallenge,
                                        &infotarget,
                                        ntlmv2,
                                        &answer);
        if (ret)
            errx(1, "heim_ntlm_calculate_ntlm2");

        ret = heim_ntlm_verify_ntlm2(key.data,
                                     key.length,
                                     username,
                                     target,
                                     0,
                                     serverchallenge,
                                     &answer,
                                     &infotarget2,
                                     ntlmv2_1);
        if (ret)
            errx(1, "heim_ntlm_verify_ntlm2");

        if (memcmp(ntlmv2, ntlmv2_1, sizeof(ntlmv2)) != 0)
            errx(1, "ntlm master key not same");

        if (infotarget.length > infotarget2.length)
            errx(1, "infotarget length");

        if (memcmp(infotarget.data, infotarget2.data, infotarget.length) != 0)
            errx(1, "infotarget not the same");

        free(key.data);
        free(answer.data);
        free(infotarget2.data);

        return 0;
    }

    static int
    test_ntlm2_session_resp(void)
    {
        int ret;
        struct ntlm_buf lm, ntlm;

        const unsigned char lm_resp[24] =
            "\xff\xff\xff\x00\x11\x22\x33\x44"
            "\x00\x00\x00\x00\x00\x00\x00\x00"
            "\x00\x00\x00\x00\x00\x00\x00\x00";
        const unsigned char ntlm2_sess_resp[24] =
            "\x10\xd5\x50\x83\x2d\x12\xb2\xcc"
            "\xb7\x9d\x5a\xd1\xf4\xee\xd3\xdf"
            "\x82\xac\xa4\xc3\x68\x1d\xd4\x55";

        const unsigned char client_nonce[8] =
            "\xff\xff\xff\x00\x11\x22\x33\x44";
        const unsigned char server_challenge[8] =
            "\x01\x23\x45\x67\x89\xab\xcd\xef";

        const unsigned char ntlm_hash[16] =
            "\xcd\x06\xca\x7c\x7e\x10\xc9\x9b"
            "\x1d\x33\xb7\x48\x5a\x2e\xd8\x08";

        ret = heim_ntlm_calculate_ntlm2_sess(client_nonce,
                                             server_challenge,
                                             ntlm_hash,
                                             &lm,
                                             &ntlm);
        if (ret)
            errx(1, "heim_ntlm_calculate_ntlm2_sess_resp");

        if (lm.length != 24 || memcmp(lm.data, lm_resp, 24) != 0)
            errx(1, "lm_resp wrong");
        if (ntlm.length != 24 || memcmp(ntlm.data, ntlm2_sess_resp, 24) != 0)
            errx(1, "ntlm2_sess_resp wrong");

        free(lm.data);
        free(ntlm.data);

        return 0;
    }

    static int
    test_targetinfo(void)
    {
        struct ntlm_targetinfo ti;
        struct ntlm_buf buf;
        const char *dnsservername = "dnsservername";
        int ret;

        memset(&ti, 0, sizeof(ti));

        ti.dnsservername = rk_UNCONST(dnsservername);
        ti.avflags = 1;
        ret = heim_ntlm_encode_targetinfo(&ti, 1, &buf);
        if (ret)
            return ret;

        memset(&ti, 0, sizeof(ti));

        ret = heim_ntlm_decode_targetinfo(&buf, 1, &ti);
        if (ret)
            return ret;

        if (ti.dnsservername == NULL ||
            strcmp(ti.dnsservername, dnsservername) != 0)
            errx(1, "ti.dnshostname != %s", dnsservername);
        if (ti.avflags != 1)
            errx(1, "ti.avflags != 1");

        heim_ntlm_free_targetinfo(&ti);

        return 0;
    }

    static int verbose_flag = 0;
    static int version_flag = 0;
    static int help_flag    = 0;

    static struct getargs args[] = {
        {"verbose", 0,      arg_flag,       &verbose_flag, "verbose printing", NULL },
        {"version", 0,      arg_flag,       &version_flag, "print version", NULL },
        {"help",    0,      arg_flag,       &help_flag,  NULL, NULL }
    };

    static void
    usage (int ret)
    {
        arg_printusage (args, sizeof(args)/sizeof(*args),
                        NULL, "");
        exit (ret);
    }

    int
    main(int argc, char **argv)
    {
        int ret = 0, optind = 0;

        setprogname(argv[0]);

        if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optind))
            usage(1);

        if (help_flag)
            usage (0);

        if(version_flag){
            print_version(NULL);
            exit(0);
        }

        argc -= optind;
        argv += optind;

        if (verbose_flag)
            printf("test_parse\n");

        ret += test_parse();
        if (verbose_flag)
            printf("test_keys\n");

        ret += test_keys();
        if (verbose_flag)
            printf("test_ntlm2_session_resp\n");
        ret += test_ntlm2_session_resp();

        if (verbose_flag)
            printf("test_targetinfo\n");
        ret += test_targetinfo();

        return ret;
    }