test/packettest.c

   1 /* test/packettest.c */
   2 /*
   3  * Written by Matt Caswell for the OpenSSL project.
   4  */
   5 /* ====================================================================
   6  * Copyright (c) 2015 The OpenSSL Project.  All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in
  17  *    the documentation and/or other materials provided with the
  18  *    distribution.
  19  *
  20  * 3. All advertising materials mentioning features or use of this
  21  *    software must display the following acknowledgment:
  22  *    "This product includes software developed by the OpenSSL Project
  23  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  24  *
  25  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  26  *    endorse or promote products derived from this software without
  27  *    prior written permission. For written permission, please contact
  28  *    openssl-core@openssl.org.
  29  *
  30  * 5. Products derived from this software may not be called "OpenSSL"
  31  *    nor may "OpenSSL" appear in their names without prior written
  32  *    permission of the OpenSSL Project.
  33  *
  34  * 6. Redistributions of any form whatsoever must retain the following
  35  *    acknowledgment:
  36  *    "This product includes software developed by the OpenSSL Project
  37  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  38  *
  39  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  40  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  41  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  42  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  43  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  44  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  45  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  46  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  48  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  49  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  50  * OF THE POSSIBILITY OF SUCH DAMAGE.
  51  * ====================================================================
  52  *
  53  * This product includes cryptographic software written by Eric Young
  54  * (eay@cryptsoft.com).  This product includes software written by Tim
  55  * Hudson (tjh@cryptsoft.com).
  56  *
  57  */
  58
  59
  60 #include "../ssl/packet_locl.h"
  61
  62 #define BUF_LEN 255
  63
  64 static int test_PACKET_remaining(unsigned char buf[BUF_LEN])
  65 {
  66     PACKET pkt;
  67
  68     if (       !PACKET_buf_init(&pkt, buf, BUF_LEN)
  69             ||  PACKET_remaining(&pkt) != BUF_LEN
  70             || !PACKET_forward(&pkt, BUF_LEN - 1)
  71             ||  PACKET_remaining(&pkt) != 1
  72             || !PACKET_forward(&pkt, 1)
  73             ||  PACKET_remaining(&pkt) != 0) {
  74         fprintf(stderr, "test_PACKET_remaining() failed\n");
  75         return 0;
  76     }
  77
  78     return 1;
  79 }
  80
  81 static int test_PACKET_get_1(unsigned char buf[BUF_LEN])
  82 {
  83     unsigned int i;
  84     PACKET pkt;
  85
  86     if (       !PACKET_buf_init(&pkt, buf, BUF_LEN)
  87             || !PACKET_get_1(&pkt, &i)
  88             ||  i != 0x02
  89             || !PACKET_forward(&pkt, BUF_LEN - 2)
  90             || !PACKET_get_1(&pkt, &i)
  91             ||  i != 0xfe
  92             ||  PACKET_get_1(&pkt, &i)) {
  93         fprintf(stderr, "test_PACKET_get_1() failed\n");
  94         return 0;
  95     }
  96
  97     return 1;
  98 }
  99
 100 static int test_PACKET_get_4(unsigned char buf[BUF_LEN])
 101 {
 102     unsigned long i;
 103     PACKET pkt;
 104
 105     if (       !PACKET_buf_init(&pkt, buf, BUF_LEN)
 106             || !PACKET_get_4(&pkt, &i)
 107             ||  i != 0x08060402UL
 108             || !PACKET_forward(&pkt, BUF_LEN - 8)
 109             || !PACKET_get_4(&pkt, &i)
 110             ||  i != 0xfefcfaf8UL
 111             ||  PACKET_get_4(&pkt, &i)) {
 112         fprintf(stderr, "test_PACKET_get_4() failed\n");
 113         return 0;
 114     }
 115
 116     return 1;
 117 }
 118
 119 static int test_PACKET_get_net_2(unsigned char buf[BUF_LEN])
 120 {
 121     unsigned int i;
 122     PACKET pkt;
 123
 124     if (       !PACKET_buf_init(&pkt, buf, BUF_LEN)
 125             || !PACKET_get_net_2(&pkt, &i)
 126             ||  i != 0x0204
 127             || !PACKET_forward(&pkt, BUF_LEN - 4)
 128             || !PACKET_get_net_2(&pkt, &i)
 129             ||  i != 0xfcfe
 130             ||  PACKET_get_net_2(&pkt, &i)) {
 131         fprintf(stderr, "test_PACKET_get_net_2() failed\n");
 132         return 0;
 133     }
 134
 135     return 1;
 136 }
 137
 138 static int test_PACKET_get_net_3(unsigned char buf[BUF_LEN])
 139 {
 140     unsigned long i;
 141     PACKET pkt;
 142
 143     if (       !PACKET_buf_init(&pkt, buf, BUF_LEN)
 144             || !PACKET_get_net_3(&pkt, &i)
 145             ||  i != 0x020406UL
 146             || !PACKET_forward(&pkt, BUF_LEN - 6)
 147             || !PACKET_get_net_3(&pkt, &i)
 148             ||  i != 0xfafcfeUL
 149             ||  PACKET_get_net_3(&pkt, &i)) {
 150         fprintf(stderr, "test_PACKET_get_net_3() failed\n");
 151         return 0;
 152     }
 153
 154     return 1;
 155 }
 156
 157 static int test_PACKET_get_net_4(unsigned char buf[BUF_LEN])
 158 {
 159     unsigned long i;
 160     PACKET pkt;
 161
 162     if (       !PACKET_buf_init(&pkt, buf, BUF_LEN)
 163             || !PACKET_get_net_4(&pkt, &i)
 164             ||  i != 0x02040608UL
 165             || !PACKET_forward(&pkt, BUF_LEN - 8)
 166             || !PACKET_get_net_4(&pkt, &i)
 167             ||  i != 0xf8fafcfeUL
 168             ||  PACKET_get_net_4(&pkt, &i)) {
 169         fprintf(stderr, "test_PACKET_get_net_4() failed\n");
 170         return 0;
 171     }
 172
 173     return 1;
 174 }
 175
 176 static int test_PACKET_get_sub_packet(unsigned char buf[BUF_LEN])
 177 {
 178     PACKET pkt, subpkt;
 179     unsigned long i;
 180
 181     if (       !PACKET_buf_init(&pkt, buf, BUF_LEN)
 182             || !PACKET_get_sub_packet(&pkt, &subpkt, 4)
 183             || !PACKET_get_net_4(&subpkt, &i)
 184             ||  i != 0x02040608UL
 185             ||  PACKET_remaining(&subpkt)
 186             || !PACKET_forward(&pkt, BUF_LEN - 8)
 187             || !PACKET_get_sub_packet(&pkt, &subpkt, 4)
 188             || !PACKET_get_net_4(&subpkt, &i)
 189             ||  i != 0xf8fafcfeUL
 190             ||  PACKET_remaining(&subpkt)
 191             ||  PACKET_get_sub_packet(&pkt, &subpkt, 4)) {
 192         fprintf(stderr, "test_PACKET_get_sub_packet() failed\n");
 193         return 0;
 194     }
 195
 196     return 1;
 197 }
 198
 199 static int test_PACKET_get_bytes(unsigned char buf[BUF_LEN])
 200 {
 201     unsigned char *bytes;
 202     PACKET pkt;
 203
 204     if (       !PACKET_buf_init(&pkt, buf, BUF_LEN)
 205             || !PACKET_get_bytes(&pkt, &bytes, 4)
 206             ||  bytes[0] != 2 || bytes[1] != 4
 207             ||  bytes[2] != 6 || bytes[3] != 8
 208             ||  PACKET_remaining(&pkt) != BUF_LEN -4
 209             || !PACKET_forward(&pkt, BUF_LEN - 8)
 210             || !PACKET_get_bytes(&pkt, &bytes, 4)
 211             ||  bytes[0] != 0xf8 || bytes[1] != 0xfa
 212             ||  bytes[2] != 0xfc || bytes[3] != 0xfe
 213             ||  PACKET_remaining(&pkt)) {
 214         fprintf(stderr, "test_PACKET_get_bytes() failed\n");
 215         return 0;
 216     }
 217
 218     return 1;
 219 }
 220
 221 static int test_PACKET_copy_bytes(unsigned char buf[BUF_LEN])
 222 {
 223     unsigned char bytes[4];
 224     PACKET pkt;
 225
 226     if (       !PACKET_buf_init(&pkt, buf, BUF_LEN)
 227             || !PACKET_copy_bytes(&pkt, bytes, 4)
 228             ||  bytes[0] != 2 || bytes[1] != 4
 229             ||  bytes[2] != 6 || bytes[3] != 8
 230             ||  PACKET_remaining(&pkt) != BUF_LEN - 4
 231             || !PACKET_forward(&pkt, BUF_LEN - 8)
 232             || !PACKET_copy_bytes(&pkt, bytes, 4)
 233             ||  bytes[0] != 0xf8 || bytes[1] != 0xfa
 234             ||  bytes[2] != 0xfc || bytes[3] != 0xfe
 235             ||  PACKET_remaining(&pkt)) {
 236         fprintf(stderr, "test_PACKET_copy_bytes() failed\n");
 237         return 0;
 238     }
 239
 240     return 1;
 241 }
 242
 243 static int test_PACKET_copy_all(unsigned char buf[BUF_LEN])
 244 {
 245     unsigned char tmp[BUF_LEN];
 246     PACKET pkt;
 247     size_t len;
 248
 249     if (       !PACKET_buf_init(&pkt, buf, BUF_LEN)
 250                || !PACKET_copy_all(&pkt, tmp, BUF_LEN, &len)
 251                || len != BUF_LEN
 252                || memcmp(buf, tmp, BUF_LEN) != 0
 253                || PACKET_remaining(&pkt) != BUF_LEN
 254                || PACKET_copy_all(&pkt, tmp, BUF_LEN - 1, &len)) {
 255         fprintf(stderr, "test_PACKET_copy_bytes() failed\n");
 256         return 0;
 257     }
 258
 259     return 1;
 260 }
 261
 262 static int test_PACKET_memdup(unsigned char buf[BUF_LEN])
 263 {
 264     unsigned char *data = NULL;
 265     size_t len;
 266     PACKET pkt;
 267
 268     if (       !PACKET_buf_init(&pkt, buf, BUF_LEN)
 269             || !PACKET_memdup(&pkt, &data, &len)
 270             ||  len != BUF_LEN
 271             ||  memcmp(data, PACKET_data(&pkt), len)
 272             || !PACKET_forward(&pkt, 10)
 273             || !PACKET_memdup(&pkt, &data, &len)
 274             ||  len != BUF_LEN - 10
 275             ||  memcmp(data, PACKET_data(&pkt), len)) {
 276         fprintf(stderr, "test_PACKET_memdup() failed\n");
 277         OPENSSL_free(data);
 278         return 0;
 279     }
 280
 281     OPENSSL_free(data);
 282     return 1;
 283 }
 284
 285 static int test_PACKET_strndup()
 286 {
 287     char buf[10], buf2[10];
 288     char *data = NULL;
 289     PACKET pkt;
 290
 291     memset(buf, 'x', 10);
 292     memset(buf2, 'y', 10);
 293     buf2[5] = '\0';
 294
 295     if (       !PACKET_buf_init(&pkt, (unsigned char*)buf, 10)
 296             || !PACKET_strndup(&pkt, &data)
 297             ||  strlen(data) != 10
 298             ||  strncmp(data, buf, 10)
 299             || !PACKET_buf_init(&pkt, (unsigned char*)buf2, 10)
 300             || !PACKET_strndup(&pkt, &data)
 301             ||  strlen(data) != 5
 302             ||  strcmp(data, buf2)) {
 303         fprintf(stderr, "test_PACKET_strndup failed\n");
 304         OPENSSL_free(data);
 305         return 0;
 306     }
 307
 308     OPENSSL_free(data);
 309     return 1;
 310 }
 311
 312 static int test_PACKET_forward(unsigned char buf[BUF_LEN])
 313 {
 314     unsigned char *byte;
 315     PACKET pkt;
 316
 317     if (       !PACKET_buf_init(&pkt, buf, BUF_LEN)
 318             || !PACKET_forward(&pkt, 1)
 319             || !PACKET_get_bytes(&pkt, &byte, 1)
 320             ||  byte[0] != 4
 321             || !PACKET_forward(&pkt, BUF_LEN - 3)
 322             || !PACKET_get_bytes(&pkt, &byte, 1)
 323             ||  byte[0] != 0xfe) {
 324         fprintf(stderr, "test_PACKET_forward() failed\n");
 325         return 0;
 326     }
 327
 328     return 1;
 329 }
 330
 331 static int test_PACKET_buf_init()
 332 {
 333     unsigned char buf[BUF_LEN];
 334     PACKET pkt;
 335
 336     /* Also tests PACKET_remaining() */
 337     if (       !PACKET_buf_init(&pkt, buf, 4)
 338             ||  PACKET_remaining(&pkt) != 4
 339             || !PACKET_buf_init(&pkt, buf, BUF_LEN)
 340             ||  PACKET_remaining(&pkt) != BUF_LEN
 341             ||  PACKET_buf_init(&pkt, buf, -1)) {
 342         fprintf(stderr, "test_PACKET_buf_init() failed\n");
 343         return 0;
 344         }
 345
 346     return 1;
 347 }
 348
 349 static int test_PACKET_null_init()
 350 {
 351     PACKET pkt;
 352
 353     PACKET_null_init(&pkt);
 354     if (       PACKET_remaining(&pkt) != 0
 355             || PACKET_forward(&pkt, 1)) {
 356         fprintf(stderr, "test_PACKET_null_init() failed\n");
 357         return 0;
 358         }
 359
 360     return 1;
 361 }
 362
 363 static int test_PACKET_equal(unsigned char buf[BUF_LEN])
 364 {
 365     PACKET pkt;
 366
 367     if (       !PACKET_buf_init(&pkt, buf, 4)
 368             || !PACKET_equal(&pkt, buf, 4)
 369             ||  PACKET_equal(&pkt, buf + 1, 4)
 370             || !PACKET_buf_init(&pkt, buf, BUF_LEN)
 371             || !PACKET_equal(&pkt, buf, BUF_LEN)
 372             ||  PACKET_equal(&pkt, buf, BUF_LEN - 1)
 373             ||  PACKET_equal(&pkt, buf, BUF_LEN + 1)
 374             ||  PACKET_equal(&pkt, buf, 0)) {
 375         fprintf(stderr, "test_PACKET_equal() failed\n");
 376         return 0;
 377         }
 378
 379     return 1;
 380 }
 381
 382 static int test_PACKET_get_length_prefixed_1()
 383 {
 384     unsigned char buf[BUF_LEN];
 385     const size_t len = 16;
 386     unsigned int i;
 387     PACKET pkt, short_pkt, subpkt;
 388
 389     buf[0] = len;
 390     for (i = 1; i < BUF_LEN; i++) {
 391         buf[i] = (i * 2) & 0xff;
 392     }
 393
 394     if (       !PACKET_buf_init(&pkt, buf, BUF_LEN)
 395             || !PACKET_buf_init(&short_pkt, buf, len)
 396             || !PACKET_get_length_prefixed_1(&pkt, &subpkt)
 397             ||  PACKET_remaining(&subpkt) != len
 398             || !PACKET_get_net_2(&subpkt, &i)
 399             ||  i != 0x0204
 400             ||  PACKET_get_length_prefixed_1(&short_pkt, &subpkt)
 401             ||  PACKET_remaining(&short_pkt) != len) {
 402         fprintf(stderr, "test_PACKET_get_length_prefixed_1() failed\n");
 403         return 0;
 404     }
 405
 406     return 1;
 407 }
 408
 409 static int test_PACKET_get_length_prefixed_2()
 410 {
 411     unsigned char buf[1024];
 412     const size_t len = 516;  /* 0x0204 */
 413     unsigned int i;
 414     PACKET pkt, short_pkt, subpkt;
 415
 416     for (i = 1; i <= 1024; i++) {
 417         buf[i-1] = (i * 2) & 0xff;
 418     }
 419
 420     if (       !PACKET_buf_init(&pkt, buf, 1024)
 421             || !PACKET_buf_init(&short_pkt, buf, len)
 422             || !PACKET_get_length_prefixed_2(&pkt, &subpkt)
 423             ||  PACKET_remaining(&subpkt) != len
 424             || !PACKET_get_net_2(&subpkt, &i)
 425             ||  i != 0x0608
 426             ||  PACKET_get_length_prefixed_2(&short_pkt, &subpkt)
 427             ||  PACKET_remaining(&short_pkt) != len) {
 428         fprintf(stderr, "test_PACKET_get_length_prefixed_2() failed\n");
 429         return 0;
 430     }
 431
 432     return 1;
 433 }
 434
 435 static int test_PACKET_get_length_prefixed_3()
 436 {
 437     unsigned char buf[1024];
 438     const size_t len = 516;  /* 0x000204 */
 439     unsigned int i;
 440     PACKET pkt, short_pkt, subpkt;
 441
 442     for (i = 0; i < 1024; i++) {
 443         buf[i] = (i * 2) & 0xff;
 444     }
 445
 446     if (       !PACKET_buf_init(&pkt, buf, 1024)
 447             || !PACKET_buf_init(&short_pkt, buf, len)
 448             || !PACKET_get_length_prefixed_3(&pkt, &subpkt)
 449             ||  PACKET_remaining(&subpkt) != len
 450             || !PACKET_get_net_2(&subpkt, &i)
 451             ||  i != 0x0608
 452             ||  PACKET_get_length_prefixed_3(&short_pkt, &subpkt)
 453             ||  PACKET_remaining(&short_pkt) != len) {
 454         fprintf(stderr, "test_PACKET_get_length_prefixed_3() failed\n");
 455         return 0;
 456     }
 457
 458     return 1;
 459 }
 460
 461 int main(int argc, char **argv)
 462 {
 463     unsigned char buf[BUF_LEN];
 464     unsigned int i;
 465
 466     for (i=1; i<=BUF_LEN; i++) {
 467         buf[i-1] = (i * 2) & 0xff;
 468     }
 469     i = 0;
 470
 471     if (       !test_PACKET_buf_init()
 472             || !test_PACKET_null_init()
 473             || !test_PACKET_remaining(buf)
 474             || !test_PACKET_equal(buf)
 475             || !test_PACKET_get_1(buf)
 476             || !test_PACKET_get_4(buf)
 477             || !test_PACKET_get_net_2(buf)
 478             || !test_PACKET_get_net_3(buf)
 479             || !test_PACKET_get_net_4(buf)
 480             || !test_PACKET_get_sub_packet(buf)
 481             || !test_PACKET_get_bytes(buf)
 482             || !test_PACKET_copy_bytes(buf)
 483             || !test_PACKET_copy_all(buf)
 484             || !test_PACKET_memdup(buf)
 485             || !test_PACKET_strndup()
 486             || !test_PACKET_forward(buf)
 487             || !test_PACKET_get_length_prefixed_1()
 488             || !test_PACKET_get_length_prefixed_2()
 489             || !test_PACKET_get_length_prefixed_3()) {
 490         return 1;
 491     }
 492     printf("PASS\n");
 493     return 0;
 494 }