lib/util/tests/asn1_tests.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    util_asn1 testing
   5
   6    Copyright (C) Kamen Mazdrashki <kamen.mazdrashki@postpath.com> 2009
   7    Copyright (C) Volker Lendecke 2004
   8    Copyright (C) Andrew Bartlett 2011
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 3 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  22 */
  23
  24 #include "includes.h"
  25 #include "torture/torture.h"
  26 #include "../asn1.h"
  27
  28 struct oid_data {
  29         const char *oid;        /* String OID */
  30         const char *bin_oid;    /* Binary OID represented as string */
  31 };
  32
  33 /* Data for successful OIDs conversions */
  34 static const struct oid_data oid_data_ok[] = {
  35         {
  36                 .oid = "2.5.4.0",
  37                 .bin_oid = "550400"
  38         },
  39         {
  40                 .oid = "2.5.4.1",
  41                 .bin_oid = "550401"
  42         },
  43         {
  44                 .oid = "2.5.4.130",
  45                 .bin_oid = "55048102"
  46         },
  47         {
  48                 .oid = "2.5.130.4",
  49                 .bin_oid = "55810204"
  50         },
  51         {
  52                 .oid = "2.5.4.16387",
  53                 .bin_oid = "5504818003"
  54         },
  55         {
  56                 .oid = "2.5.16387.4",
  57                 .bin_oid = "5581800304"
  58         },
  59         {
  60                 .oid = "2.5.2097155.4",
  61                 .bin_oid = "558180800304"
  62         },
  63         {
  64                 .oid = "2.5.4.130.16387.2097155.268435459",
  65                 .bin_oid = "55048102818003818080038180808003"
  66         },
  67 };
  68
  69 /* Data for successful OIDs conversions */
  70 static const char *oid_data_err[] = {
  71                 "",             /* empty OID */
  72                 ".2.5.4.130",   /* first sub-identifier is empty */
  73                 "2.5.4.130.",   /* last sub-identifier is empty */
  74                 "2..5.4.130",   /* second sub-identifier is empty */
  75                 "2.5..4.130",   /* third sub-identifier is empty */
  76                 "2.abc.4.130",  /* invalid sub-identifier */
  77                 "2.5abc.4.130", /* invalid sub-identifier (alpha-numeric)*/
  78 };
  79
  80 /* Data for successful Partial OIDs conversions */
  81 static const struct oid_data partial_oid_data_ok[] = {
  82         {
  83                 .oid = "2.5.4.130:0x81",
  84                 .bin_oid = "5504810281"
  85         },
  86         {
  87                 .oid = "2.5.4.16387:0x8180",
  88                 .bin_oid = "55048180038180"
  89         },
  90         {
  91                 .oid = "2.5.4.16387:0x81",
  92                 .bin_oid = "550481800381"
  93         },
  94         {
  95                 .oid = "2.5.2097155.4:0x818080",
  96                 .bin_oid = "558180800304818080"
  97         },
  98         {
  99                 .oid = "2.5.2097155.4:0x8180",
 100                 .bin_oid = "5581808003048180"
 101         },
 102         {
 103                 .oid = "2.5.2097155.4:0x81",
 104                 .bin_oid = "55818080030481"
 105         },
 106 };
 107
 108 static const struct {
 109         DATA_BLOB blob;
 110         int value;
 111 } integer_tests[] = {
 112         {
 113                 .blob = {"\x02\x01\x00", 3},
 114                 .value = 0
 115         },
 116         {
 117                 .blob = {"\x02\x01\x7f", 3},
 118                 .value = 127
 119         },
 120         {
 121                 .blob = {"\x02\x02\x00\x80", 4},
 122                 .value = 128
 123         },
 124         {
 125                 .blob = {"\x02\x02\x01\x00", 4},
 126                 .value = 256
 127         },
 128         {
 129                 .blob = {"\x02\x01\x80", 3},
 130                 .value = -128
 131         },
 132         {
 133                 .blob = {"\x02\x02\xff\x7f", 4},
 134                 .value = -129
 135         },
 136         {
 137                 .blob = {"\x02\x01\xff", 3},
 138                 .value = -1
 139         },
 140         {
 141                 .blob = {"\x02\x02\xff\x01", 4},
 142                 .value = -255
 143         },
 144         {
 145                 .blob = {"\x02\x02\x00\xff", 4},
 146                 .value = 255
 147         },
 148         {
 149                 .blob = {"\x02\x04\x80\x00\x00\x00", 6},
 150                 .value = 0x80000000
 151         },
 152         {
 153                 .blob = {"\x02\x04\x7f\xff\xff\xff", 6},
 154                 .value = 0x7fffffff
 155         }
 156 };
 157
 158 /* Testing ber_write_OID_String() function */
 159 static bool test_ber_write_OID_String(struct torture_context *tctx)
 160 {
 161         int i;
 162         char *hex_str;
 163         DATA_BLOB blob;
 164         TALLOC_CTX *mem_ctx;
 165         const struct oid_data *data = oid_data_ok;
 166
 167         mem_ctx = talloc_new(tctx);
 168
 169         /* check for valid OIDs */
 170         for (i = 0; i < ARRAY_SIZE(oid_data_ok); i++) {
 171                 torture_assert(tctx, ber_write_OID_String(mem_ctx, &blob, data[i].oid),
 172                                 "ber_write_OID_String failed");
 173
 174                 hex_str = hex_encode_talloc(mem_ctx, blob.data, blob.length);
 175                 torture_assert(tctx, hex_str, "No memory!");
 176
 177                 torture_assert(tctx, strequal(data[i].bin_oid, hex_str),
 178                                 talloc_asprintf(mem_ctx,
 179                                                 "Failed: oid=%s, bin_oid:%s",
 180                                                 data[i].oid, data[i].bin_oid));
 181         }
 182
 183         /* check for invalid OIDs */
 184         for (i = 0; i < ARRAY_SIZE(oid_data_err); i++) {
 185                 torture_assert(tctx,
 186                                !ber_write_OID_String(mem_ctx, &blob, oid_data_err[i]),
 187                                talloc_asprintf(mem_ctx,
 188                                                "Should fail for [%s] -> %s",
 189                                                oid_data_err[i],
 190                                                hex_encode_talloc(mem_ctx, blob.data, blob.length)));
 191         }
 192
 193         talloc_free(mem_ctx);
 194
 195         return true;
 196 }
 197
 198 /* Testing ber_read_OID_String() function */
 199 static bool test_ber_read_OID_String(struct torture_context *tctx)
 200 {
 201         int i;
 202         char *oid;
 203         DATA_BLOB oid_blob;
 204         TALLOC_CTX *mem_ctx;
 205         const struct oid_data *data = oid_data_ok;
 206
 207         mem_ctx = talloc_new(tctx);
 208
 209         for (i = 0; i < ARRAY_SIZE(oid_data_ok); i++) {
 210                 oid_blob = strhex_to_data_blob(mem_ctx, data[i].bin_oid);
 211
 212                 torture_assert(tctx, ber_read_OID_String(mem_ctx, oid_blob, &oid),
 213                                 "ber_read_OID_String failed");
 214
 215                 torture_assert(tctx, strequal(data[i].oid, oid),
 216                                 talloc_asprintf(mem_ctx,
 217                                                 "Failed: oid=%s, bin_oid:%s",
 218                                                 data[i].oid, data[i].bin_oid));
 219         }
 220
 221         talloc_free(mem_ctx);
 222
 223         return true;
 224 }
 225
 226 /* Testing ber_write_partial_OID_String() function */
 227 static bool test_ber_write_partial_OID_String(struct torture_context *tctx)
 228 {
 229         int i;
 230         char *hex_str;
 231         DATA_BLOB blob;
 232         TALLOC_CTX *mem_ctx;
 233         const struct oid_data *data = oid_data_ok;
 234
 235         mem_ctx = talloc_new(tctx);
 236
 237         /* ber_write_partial_OID_String() should work with not partial OIDs also */
 238         for (i = 0; i < ARRAY_SIZE(oid_data_ok); i++) {
 239                 torture_assert(tctx, ber_write_partial_OID_String(mem_ctx, &blob, data[i].oid),
 240                                 "ber_write_partial_OID_String failed");
 241
 242                 hex_str = hex_encode_talloc(mem_ctx, blob.data, blob.length);
 243                 torture_assert(tctx, hex_str, "No memory!");
 244
 245                 torture_assert(tctx, strequal(data[i].bin_oid, hex_str),
 246                                 talloc_asprintf(mem_ctx,
 247                                                 "Failed: oid=%s, bin_oid:%s",
 248                                                 data[i].oid, data[i].bin_oid));
 249         }
 250
 251         /* ber_write_partial_OID_String() test with partial OIDs */
 252         data = partial_oid_data_ok;
 253         for (i = 0; i < ARRAY_SIZE(partial_oid_data_ok); i++) {
 254                 torture_assert(tctx, ber_write_partial_OID_String(mem_ctx, &blob, data[i].oid),
 255                                 "ber_write_partial_OID_String failed");
 256
 257                 hex_str = hex_encode_talloc(mem_ctx, blob.data, blob.length);
 258                 torture_assert(tctx, hex_str, "No memory!");
 259
 260                 torture_assert(tctx, strequal(data[i].bin_oid, hex_str),
 261                                 talloc_asprintf(mem_ctx,
 262                                                 "Failed: oid=%s, bin_oid:%s",
 263                                                 data[i].oid, data[i].bin_oid));
 264         }
 265
 266         talloc_free(mem_ctx);
 267
 268         return true;
 269 }
 270
 271 /* Testing ber_read_partial_OID_String() function */
 272 static bool test_ber_read_partial_OID_String(struct torture_context *tctx)
 273 {
 274         int i;
 275         char *oid;
 276         DATA_BLOB oid_blob;
 277         TALLOC_CTX *mem_ctx;
 278         const struct oid_data *data = oid_data_ok;
 279
 280         mem_ctx = talloc_new(tctx);
 281
 282         /* ber_read_partial_OID_String() should work with not partial OIDs also */
 283         for (i = 0; i < ARRAY_SIZE(oid_data_ok); i++) {
 284                 oid_blob = strhex_to_data_blob(mem_ctx, data[i].bin_oid);
 285
 286                 torture_assert(tctx, ber_read_partial_OID_String(mem_ctx, oid_blob, &oid),
 287                                 "ber_read_partial_OID_String failed");
 288
 289                 torture_assert(tctx, strequal(data[i].oid, oid),
 290                                 talloc_asprintf(mem_ctx,
 291                                                 "Failed: oid=%s, bin_oid:%s",
 292                                                 data[i].oid, data[i].bin_oid));
 293         }
 294
 295         /* ber_read_partial_OID_String() test with partial OIDs */
 296         data = partial_oid_data_ok;
 297         for (i = 0; i < ARRAY_SIZE(partial_oid_data_ok); i++) {
 298                 oid_blob = strhex_to_data_blob(mem_ctx, data[i].bin_oid);
 299
 300                 torture_assert(tctx, ber_read_partial_OID_String(mem_ctx, oid_blob, &oid),
 301                                 "ber_read_partial_OID_String failed");
 302
 303                 torture_assert(tctx, strequal(data[i].oid, oid),
 304                                 talloc_asprintf(mem_ctx,
 305                                                 "Failed: oid=%s, bin_oid:%s",
 306                                                 data[i].oid, data[i].bin_oid));
 307         }
 308
 309         talloc_free(mem_ctx);
 310
 311         return true;
 312 }
 313
 314 /*
 315  * Testing asn1_read_Integer and asn1_write_Integer functions,
 316  * inspired by Love Hornquist Astrand
 317  */
 318
 319 static bool test_asn1_Integer(struct torture_context *tctx)
 320 {
 321         int i;
 322         TALLOC_CTX *mem_ctx;
 323
 324         mem_ctx = talloc_new(tctx);
 325
 326         for (i = 0; i < ARRAY_SIZE(integer_tests); i++) {
 327                 ASN1_DATA *data;
 328                 DATA_BLOB blob;
 329                 int val;
 330
 331                 data = asn1_init(mem_ctx);
 332                 if (!data) {
 333                         return -1;
 334                 }
 335
 336                 asn1_write_Integer(data, integer_tests[i].value);
 337
 338                 blob.data = data->data;
 339                 blob.length = data->length;
 340                 torture_assert_data_blob_equal(tctx, blob, integer_tests[i].blob, "asn1_write_Integer gave incorrect result");
 341
 342                 asn1_load(data, blob);
 343                 torture_assert(tctx, asn1_read_Integer(data, &val), "asn1_write_Integer output could not be read by asn1_read_Integer()");
 344
 345                 torture_assert_int_equal(tctx, val, integer_tests[i].value,
 346                         "readback of asn1_write_Integer output by asn1_read_Integer() failed");
 347         }
 348
 349         talloc_free(mem_ctx);
 350
 351         return true;
 352 }
 353
 354
 355 /* LOCAL-ASN1 test suite creation */
 356 struct torture_suite *torture_local_util_asn1(TALLOC_CTX *mem_ctx)
 357 {
 358         struct torture_suite *suite = torture_suite_create(mem_ctx, "asn1");
 359
 360         torture_suite_add_simple_test(suite, "ber_write_OID_String",
 361                                       test_ber_write_OID_String);
 362
 363         torture_suite_add_simple_test(suite, "ber_read_OID_String",
 364                                       test_ber_read_OID_String);
 365
 366         torture_suite_add_simple_test(suite, "ber_write_partial_OID_String",
 367                                       test_ber_write_partial_OID_String);
 368
 369         torture_suite_add_simple_test(suite, "ber_read_partial_OID_String",
 370                                       test_ber_read_partial_OID_String);
 371
 372         torture_suite_add_simple_test(suite, "asn1_Integer",
 373                                       test_asn1_Integer);
 374
 375         return suite;
 376 }