lib/krb5/test_pac.c

   1 /*
   2  * Copyright (c) 2006 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the Institute nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 #include "krb5_locl.h"
  35
  36 /*
  37  * This PAC and keys are copied (with permission) from Samba torture
  38  * regression test suite, they where created by Andrew Bartlet.
  39  */
  40
  41 static const unsigned char saved_pac[] = {
  42         0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0xd8, 0x01, 0x00, 0x00,
  43         0x48, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0a, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00,
  44         0x20, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x14, 0x00, 0x00, 0x00,
  45         0x40, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x00, 0x00, 0x00, 0x14, 0x00, 0x00, 0x00,
  46         0x58, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x10, 0x08, 0x00, 0xcc, 0xcc, 0xcc, 0xcc,
  47         0xc8, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x30, 0xdf, 0xa6, 0xcb,
  48         0x4f, 0x7d, 0xc5, 0x01, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0xff,
  49         0xff, 0xff, 0xff, 0x7f, 0xc0, 0x3c, 0x4e, 0x59, 0x62, 0x73, 0xc5, 0x01, 0xc0, 0x3c, 0x4e, 0x59,
  50         0x62, 0x73, 0xc5, 0x01, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f, 0x16, 0x00, 0x16, 0x00,
  51         0x04, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00,
  52         0x0c, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00,
  53         0x14, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x00, 0x02, 0x00, 0x65, 0x00, 0x00, 0x00,
  54         0xed, 0x03, 0x00, 0x00, 0x04, 0x02, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x1c, 0x00, 0x02, 0x00,
  55         0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  56         0x00, 0x00, 0x00, 0x00, 0x14, 0x00, 0x16, 0x00, 0x20, 0x00, 0x02, 0x00, 0x16, 0x00, 0x18, 0x00,
  57         0x24, 0x00, 0x02, 0x00, 0x28, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  58         0x00, 0x21, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  59         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  60         0x01, 0x00, 0x00, 0x00, 0x2c, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  61         0x00, 0x00, 0x00, 0x00, 0x0b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0b, 0x00, 0x00, 0x00,
  62         0x57, 0x00, 0x32, 0x00, 0x30, 0x00, 0x30, 0x00, 0x33, 0x00, 0x46, 0x00, 0x49, 0x00, 0x4e, 0x00,
  63         0x41, 0x00, 0x4c, 0x00, 0x24, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  64         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  65         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  66         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  67         0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x04, 0x02, 0x00, 0x00, 0x07, 0x00, 0x00, 0x00,
  68         0x0b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0a, 0x00, 0x00, 0x00, 0x57, 0x00, 0x32, 0x00,
  69         0x30, 0x00, 0x30, 0x00, 0x33, 0x00, 0x46, 0x00, 0x49, 0x00, 0x4e, 0x00, 0x41, 0x00, 0x4c, 0x00,
  70         0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0b, 0x00, 0x00, 0x00, 0x57, 0x00, 0x49, 0x00,
  71         0x4e, 0x00, 0x32, 0x00, 0x4b, 0x00, 0x33, 0x00, 0x54, 0x00, 0x48, 0x00, 0x49, 0x00, 0x4e, 0x00,
  72         0x4b, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x01, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05,
  73         0x15, 0x00, 0x00, 0x00, 0x11, 0x2f, 0xaf, 0xb5, 0x90, 0x04, 0x1b, 0xec, 0x50, 0x3b, 0xec, 0xdc,
  74         0x01, 0x00, 0x00, 0x00, 0x30, 0x00, 0x02, 0x00, 0x07, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
  75         0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  76         0x80, 0x66, 0x28, 0xea, 0x37, 0x80, 0xc5, 0x01, 0x16, 0x00, 0x77, 0x00, 0x32, 0x00, 0x30, 0x00,
  77         0x30, 0x00, 0x33, 0x00, 0x66, 0x00, 0x69, 0x00, 0x6e, 0x00, 0x61, 0x00, 0x6c, 0x00, 0x24, 0x00,
  78         0x76, 0xff, 0xff, 0xff, 0x37, 0xd5, 0xb0, 0xf7, 0x24, 0xf0, 0xd6, 0xd4, 0xec, 0x09, 0x86, 0x5a,
  79         0xa0, 0xe8, 0xc3, 0xa9, 0x00, 0x00, 0x00, 0x00, 0x76, 0xff, 0xff, 0xff, 0xb4, 0xd8, 0xb8, 0xfe,
  80         0x83, 0xb3, 0x13, 0x3f, 0xfc, 0x5c, 0x41, 0xad, 0xe2, 0x64, 0x83, 0xe0, 0x00, 0x00, 0x00, 0x00
  81 };
  82
  83 static int type_1_length = 472;
  84
  85 static const krb5_keyblock kdc_keyblock = {
  86     ETYPE_ARCFOUR_HMAC_MD5,
  87     { 16, "\xB2\x86\x75\x71\x48\xAF\x7F\xD2\x52\xC5\x36\x03\xA1\x50\xB7\xE7" }
  88 };
  89
  90 static const krb5_keyblock member_keyblock = {
  91     ETYPE_ARCFOUR_HMAC_MD5,
  92     { 16, "\xD2\x17\xFA\xEA\xE5\xE6\xB5\xF9\x5C\xCC\x94\x07\x7A\xB8\xA5\xFC" }
  93 };
  94
  95 static time_t authtime = 1120440609;
  96 static const char *user = "w2003final$@WIN2K3.THINKER.LOCAL";
  97
  98 /*
  99  * This pac from Christan Krause
 100  */
 101
 102 static const unsigned char saved_pac2[] =
 103     "\x05\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xc8\x01\x00\x00"
 104     "\x58\x00\x00\x00\x00\x00\x00\x00\x0a\x00\x00\x00\x18\x00\x00\x00"
 105     "\x20\x02\x00\x00\x00\x00\x00\x00\x0c\x00\x00\x00\x70\x00\x00\x00"
 106     "\x38\x02\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x14\x00\x00\x00"
 107     "\xa8\x02\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x14\x00\x00\x00"
 108     "\xc0\x02\x00\x00\x00\x00\x00\x00\x01\x10\x08\x00\xcc\xcc\xcc\xcc"
 109     "\xb8\x01\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x7d\xee\x09\x76"
 110     "\xf2\x39\xc9\x01\xff\xff\xff\xff\xff\xff\xff\x7f\xff\xff\xff\xff"
 111     "\xff\xff\xff\x7f\x6d\x49\x38\x62\xf2\x39\xc9\x01\x6d\x09\xa2\x8c"
 112     "\xbb\x3a\xc9\x01\xff\xff\xff\xff\xff\xff\xff\x7f\x0e\x00\x0e\x00"
 113     "\x04\x00\x02\x00\x10\x00\x10\x00\x08\x00\x02\x00\x00\x00\x00\x00"
 114     "\x0c\x00\x02\x00\x00\x00\x00\x00\x10\x00\x02\x00\x00\x00\x00\x00"
 115     "\x14\x00\x02\x00\x00\x00\x00\x00\x18\x00\x02\x00\x02\x01\x00\x00"
 116     "\x52\x04\x00\x00\x01\x02\x00\x00\x03\x00\x00\x00\x1c\x00\x02\x00"
 117     "\x20\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
 118     "\x00\x00\x00\x00\x10\x00\x12\x00\x20\x00\x02\x00\x0e\x00\x10\x00"
 119     "\x24\x00\x02\x00\x28\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00"
 120     "\x10\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
 121     "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
 122     "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
 123     "\x00\x00\x00\x00\x07\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00"
 124     "\x6f\x00\x70\x00\x65\x00\x6e\x00\x6d\x00\x73\x00\x70\x00\x00\x00"
 125     "\x08\x00\x00\x00\x00\x00\x00\x00\x08\x00\x00\x00\x6f\x00\x70\x00"
 126     "\x65\x00\x6e\x00\x20\x00\x6d\x00\x73\x00\x70\x00\x00\x00\x00\x00"
 127     "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
 128     "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
 129     "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00\x00\x00"
 130     "\x60\x04\x00\x00\x07\x00\x00\x00\x01\x02\x00\x00\x07\x00\x00\x00"
 131     "\x5e\x04\x00\x00\x07\x00\x00\x00\x09\x00\x00\x00\x00\x00\x00\x00"
 132     "\x08\x00\x00\x00\x43\x00\x48\x00\x4b\x00\x52\x00\x2d\x00\x41\x00"
 133     "\x44\x00\x53\x00\x08\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00"
 134     "\x4d\x00\x53\x00\x50\x00\x2d\x00\x41\x00\x44\x00\x53\x00\x00\x00"
 135     "\x04\x00\x00\x00\x01\x04\x00\x00\x00\x00\x00\x05\x15\x00\x00\x00"
 136     "\x91\xad\xdc\x4c\x63\xb8\xb5\x48\xd5\x53\xd2\xd1\x00\x00\x00\x00"
 137     "\x00\x66\xeb\x75\xf2\x39\xc9\x01\x0e\x00\x6f\x00\x70\x00\x65\x00"
 138     "\x6e\x00\x6d\x00\x73\x00\x70\x00\x38\x00\x10\x00\x28\x00\x48\x00"
 139     "\x00\x00\x00\x00\x00\x00\x00\x00\x6f\x00\x70\x00\x65\x00\x6e\x00"
 140     "\x6d\x00\x73\x00\x70\x00\x40\x00\x6d\x00\x73\x00\x70\x00\x2d\x00"
 141     "\x61\x00\x64\x00\x73\x00\x2e\x00\x70\x00\x65\x00\x70\x00\x70\x00"
 142     "\x65\x00\x72\x00\x63\x00\x6f\x00\x6e\x00\x2e\x00\x64\x00\x65\x00"
 143     "\x4d\x00\x53\x00\x50\x00\x2d\x00\x41\x00\x44\x00\x53\x00\x2e\x00"
 144     "\x50\x00\x45\x00\x50\x00\x50\x00\x45\x00\x52\x00\x43\x00\x4f\x00"
 145     "\x4e\x00\x2e\x00\x44\x00\x45\x00\x76\xff\xff\xff\xb3\x56\x15\x29"
 146     "\x37\xc6\x5c\xf7\x97\x35\xfa\xec\x59\xe8\x96\xa0\x00\x00\x00\x00"
 147     "\x76\xff\xff\xff\x50\x71\xa2\xb1\xa3\x64\x82\x5c\xfd\x23\xea\x3b"
 148     "\xb0\x19\x12\xd4\x00\x00\x00\x00";
 149
 150
 151 static const krb5_keyblock member_keyblock2 = {
 152     ETYPE_DES_CBC_MD5,
 153     { 8, "\x9e\x37\x83\x25\x4a\x7f\xf2\xf8" }
 154 };
 155
 156 static time_t authtime2 = 1225304188;
 157 static const char *user2 = "openmsp";
 158
 159
 160
 161 int
 162 main(int argc, char **argv)
 163 {
 164     krb5_error_code ret;
 165     krb5_context context;
 166     krb5_pac pac;
 167     krb5_data data;
 168     krb5_principal p, p2;
 169
 170     ret = krb5_init_context(&context);
 171     if (ret)
 172         errx(1, "krb5_init_contex");
 173
 174     krb5_enctype_enable(context, ETYPE_DES_CBC_MD5);
 175
 176     ret = krb5_parse_name(context, user, &p);
 177     if (ret)
 178         krb5_err(context, 1, ret, "krb5_parse_name");
 179
 180     ret = krb5_pac_parse(context, saved_pac, sizeof(saved_pac), &pac);
 181     if (ret)
 182         krb5_err(context, 1, ret, "krb5_pac_parse");
 183
 184     ret = krb5_pac_verify(context, pac, authtime, p,
 185                            &member_keyblock, &kdc_keyblock);
 186     if (ret)
 187         krb5_err(context, 1, ret, "krb5_pac_verify");
 188
 189     ret = _krb5_pac_sign(context, pac, authtime, p,
 190                          &member_keyblock, &kdc_keyblock, &data);
 191     if (ret)
 192         krb5_err(context, 1, ret, "_krb5_pac_sign");
 193
 194     krb5_pac_free(context, pac);
 195
 196     ret = krb5_pac_parse(context, data.data, data.length, &pac);
 197     krb5_data_free(&data);
 198     if (ret)
 199         krb5_err(context, 1, ret, "krb5_pac_parse 2");
 200
 201     ret = krb5_pac_verify(context, pac, authtime, p,
 202                            &member_keyblock, &kdc_keyblock);
 203     if (ret)
 204         krb5_err(context, 1, ret, "krb5_pac_verify 2");
 205
 206     /* make a copy and try to reproduce it */
 207     {
 208         uint32_t *list;
 209         size_t len, i;
 210         krb5_pac pac2;
 211
 212         ret = krb5_pac_init(context, &pac2);
 213         if (ret)
 214             krb5_err(context, 1, ret, "krb5_pac_init");
 215
 216         /* our two user buffer plus the three "system" buffers */
 217         ret = krb5_pac_get_types(context, pac, &len, &list);
 218         if (ret)
 219             krb5_err(context, 1, ret, "krb5_pac_get_types");
 220
 221         for (i = 0; i < len; i++) {
 222             /* skip server_cksum, privsvr_cksum, and logon_name */
 223             if (list[i] == 6 || list[i] == 7 || list[i] == 10)
 224                 continue;
 225
 226             ret = krb5_pac_get_buffer(context, pac, list[i], &data);
 227             if (ret)
 228                 krb5_err(context, 1, ret, "krb5_pac_get_buffer");
 229
 230             if (list[i] == 1) {
 231                 if (type_1_length != data.length)
 232                     krb5_errx(context, 1, "type 1 have wrong length: %lu",
 233                               (unsigned long)data.length);
 234             } else
 235                 krb5_errx(context, 1, "unknown type %lu",
 236                           (unsigned long)list[i]);
 237
 238             ret = krb5_pac_add_buffer(context, pac2, list[i], &data);
 239             if (ret)
 240                 krb5_err(context, 1, ret, "krb5_pac_add_buffer");
 241             krb5_data_free(&data);
 242         }
 243         free(list);
 244
 245         ret = _krb5_pac_sign(context, pac2, authtime, p,
 246                              &member_keyblock, &kdc_keyblock, &data);
 247         if (ret)
 248             krb5_err(context, 1, ret, "_krb5_pac_sign 4");
 249
 250         krb5_pac_free(context, pac2);
 251
 252         ret = krb5_pac_parse(context, data.data, data.length, &pac2);
 253         if (ret)
 254             krb5_err(context, 1, ret, "krb5_pac_parse 4");
 255
 256         ret = krb5_pac_verify(context, pac2, authtime, p,
 257                               &member_keyblock, &kdc_keyblock);
 258         if (ret)
 259             krb5_err(context, 1, ret, "krb5_pac_verify 4");
 260
 261         krb5_pac_free(context, pac2);
 262     }
 263
 264     krb5_pac_free(context, pac);
 265
 266     /*
 267      * check pac from Christian
 268      */
 269
 270     ret = krb5_parse_name(context, user2, &p2);
 271     if (ret)
 272         krb5_err(context, 1, ret, "krb5_parse_name");
 273
 274     ret = krb5_pac_parse(context, saved_pac2, sizeof(saved_pac2) -1, &pac);
 275     if (ret)
 276         krb5_err(context, 1, ret, "krb5_pac_parse");
 277
 278     ret = krb5_pac_verify(context, pac, authtime2, p2,
 279                            &member_keyblock2, NULL);
 280     if (ret == 0)
 281         krb5_errx(context, 1, "krb5_pac_verify");
 282
 283     krb5_pac_free(context, pac);
 284     krb5_free_principal(context, p2);
 285
 286     /*
 287      * Test empty free
 288      */
 289
 290     ret = krb5_pac_init(context, &pac);
 291     if (ret)
 292         krb5_err(context, 1, ret, "krb5_pac_init");
 293     krb5_pac_free(context, pac);
 294
 295     /*
 296      * Test add remove buffer
 297      */
 298
 299     ret = krb5_pac_init(context, &pac);
 300     if (ret)
 301         krb5_err(context, 1, ret, "krb5_pac_init");
 302
 303     {
 304         const krb5_data cdata = { 2, "\x00\x01" } ;
 305
 306         ret = krb5_pac_add_buffer(context, pac, 1, &cdata);
 307         if (ret)
 308             krb5_err(context, 1, ret, "krb5_pac_add_buffer");
 309     }
 310     {
 311         ret = krb5_pac_get_buffer(context, pac, 1, &data);
 312         if (ret)
 313             krb5_err(context, 1, ret, "krb5_pac_get_buffer");
 314         if (data.length != 2 || memcmp(data.data, "\x00\x01", 2) != 0)
 315             krb5_errx(context, 1, "krb5_pac_get_buffer data not the same");
 316         krb5_data_free(&data);
 317     }
 318
 319     {
 320         const krb5_data cdata = { 2, "\x02\x00" } ;
 321
 322         ret = krb5_pac_add_buffer(context, pac, 2, &cdata);
 323         if (ret)
 324             krb5_err(context, 1, ret, "krb5_pac_add_buffer");
 325     }
 326     {
 327         ret = krb5_pac_get_buffer(context, pac, 1, &data);
 328         if (ret)
 329             krb5_err(context, 1, ret, "krb5_pac_get_buffer");
 330         if (data.length != 2 || memcmp(data.data, "\x00\x01", 2) != 0)
 331             krb5_errx(context, 1, "krb5_pac_get_buffer data not the same");
 332         krb5_data_free(&data);
 333         /* */
 334         ret = krb5_pac_get_buffer(context, pac, 2, &data);
 335         if (ret)
 336             krb5_err(context, 1, ret, "krb5_pac_get_buffer");
 337         if (data.length != 2 || memcmp(data.data, "\x02\x00", 2) != 0)
 338             krb5_errx(context, 1, "krb5_pac_get_buffer data not the same");
 339         krb5_data_free(&data);
 340     }
 341
 342     ret = _krb5_pac_sign(context, pac, authtime, p,
 343                          &member_keyblock, &kdc_keyblock, &data);
 344     if (ret)
 345         krb5_err(context, 1, ret, "_krb5_pac_sign");
 346
 347     krb5_pac_free(context, pac);
 348
 349     ret = krb5_pac_parse(context, data.data, data.length, &pac);
 350     krb5_data_free(&data);
 351     if (ret)
 352         krb5_err(context, 1, ret, "krb5_pac_parse 3");
 353
 354     ret = krb5_pac_verify(context, pac, authtime, p,
 355                            &member_keyblock, &kdc_keyblock);
 356     if (ret)
 357         krb5_err(context, 1, ret, "krb5_pac_verify 3");
 358
 359     {
 360         uint32_t *list;
 361         size_t len;
 362
 363         /* our two user buffer plus the three "system" buffers */
 364         ret = krb5_pac_get_types(context, pac, &len, &list);
 365         if (ret)
 366             krb5_err(context, 1, ret, "krb5_pac_get_types");
 367         if (len != 5)
 368             krb5_errx(context, 1, "list wrong length");
 369         free(list);
 370     }
 371
 372     krb5_pac_free(context, pac);
 373
 374     krb5_free_principal(context, p);
 375     krb5_free_context(context);
 376
 377     return 0;
 378 }