test/enginetest.c

   1 /*
   2  * Copyright 2000-2019 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the OpenSSL license (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 #include <stdio.h>
  11 #include <string.h>
  12 #include <stdlib.h>
  13 #include <openssl/e_os2.h>
  14
  15 # include "testutil.h"
  16
  17 #ifndef OPENSSL_NO_ENGINE
  18 # include <openssl/buffer.h>
  19 # include <openssl/crypto.h>
  20 # include <openssl/engine.h>
  21 # include <openssl/rsa.h>
  22 # include <openssl/err.h>
  23
  24 static void display_engine_list(void)
  25 {
  26     ENGINE *h;
  27     int loop;
  28
  29     loop = 0;
  30     for (h = ENGINE_get_first(); h != NULL; h = ENGINE_get_next(h)) {
  31         TEST_info("#%d: id = \"%s\", name = \"%s\"",
  32                loop++, ENGINE_get_id(h), ENGINE_get_name(h));
  33     }
  34
  35     /*
  36      * ENGINE_get_first() increases the struct_ref counter, so we must call
  37      * ENGINE_free() to decrease it again
  38      */
  39     ENGINE_free(h);
  40 }
  41
  42 #define NUMTOADD 512
  43
  44 static int test_engines(void)
  45 {
  46     ENGINE *block[NUMTOADD];
  47     char buf[256];
  48     const char *id, *name;
  49     ENGINE *ptr;
  50     int loop;
  51     int to_return = 0;
  52     ENGINE *new_h1 = NULL;
  53     ENGINE *new_h2 = NULL;
  54     ENGINE *new_h3 = NULL;
  55     ENGINE *new_h4 = NULL;
  56
  57     memset(block, 0, sizeof(block));
  58     if (!TEST_ptr(new_h1 = ENGINE_new())
  59             || !TEST_true(ENGINE_set_id(new_h1, "test_id0"))
  60             || !TEST_true(ENGINE_set_name(new_h1, "First test item"))
  61             || !TEST_ptr(new_h2 = ENGINE_new())
  62             || !TEST_true(ENGINE_set_id(new_h2, "test_id1"))
  63             || !TEST_true(ENGINE_set_name(new_h2, "Second test item"))
  64             || !TEST_ptr(new_h3 = ENGINE_new())
  65             || !TEST_true(ENGINE_set_id(new_h3, "test_id2"))
  66             || !TEST_true(ENGINE_set_name(new_h3, "Third test item"))
  67             || !TEST_ptr(new_h4 = ENGINE_new())
  68             || !TEST_true(ENGINE_set_id(new_h4, "test_id3"))
  69             || !TEST_true(ENGINE_set_name(new_h4, "Fourth test item")))
  70         goto end;
  71     TEST_info("Engines:");
  72     display_engine_list();
  73
  74     if (!TEST_true(ENGINE_add(new_h1)))
  75         goto end;
  76     TEST_info("Engines:");
  77     display_engine_list();
  78
  79     ptr = ENGINE_get_first();
  80     if (!TEST_true(ENGINE_remove(ptr)))
  81         goto end;
  82     ENGINE_free(ptr);
  83     TEST_info("Engines:");
  84     display_engine_list();
  85
  86     if (!TEST_true(ENGINE_add(new_h3))
  87             || !TEST_true(ENGINE_add(new_h2)))
  88         goto end;
  89     TEST_info("Engines:");
  90     display_engine_list();
  91
  92     if (!TEST_true(ENGINE_remove(new_h2)))
  93         goto end;
  94     TEST_info("Engines:");
  95     display_engine_list();
  96
  97     if (!TEST_true(ENGINE_add(new_h4)))
  98         goto end;
  99     TEST_info("Engines:");
 100     display_engine_list();
 101
 102     /* Should fail. */
 103     if (!TEST_false(ENGINE_add(new_h3)))
 104         goto end;
 105     ERR_clear_error();
 106
 107     /* Should fail. */
 108     if (!TEST_false(ENGINE_remove(new_h2)))
 109         goto end;
 110     ERR_clear_error();
 111
 112     if (!TEST_true(ENGINE_remove(new_h3)))
 113         goto end;
 114     TEST_info("Engines:");
 115     display_engine_list();
 116
 117     if (!TEST_true(ENGINE_remove(new_h4)))
 118         goto end;
 119     TEST_info("Engines:");
 120     display_engine_list();
 121
 122     /*
 123      * At this point, we should have an empty list, unless some hardware
 124      * support engine got added.  However, since we don't allow the config
 125      * file to be loaded and don't otherwise load any built in engines,
 126      * that is unlikely.  Still, we check, if for nothing else, then to
 127      * notify that something is a little off (and might mean that |new_h1|
 128      * wasn't unloaded when it should have)
 129      */
 130     if ((ptr = ENGINE_get_first()) != NULL) {
 131         if (!ENGINE_remove(ptr))
 132             TEST_info("Remove failed - probably no hardware support present");
 133     }
 134     ENGINE_free(ptr);
 135     TEST_info("Engines:");
 136     display_engine_list();
 137
 138     if (!TEST_true(ENGINE_add(new_h1))
 139             || !TEST_true(ENGINE_remove(new_h1)))
 140         goto end;
 141
 142     TEST_info("About to beef up the engine-type list");
 143     for (loop = 0; loop < NUMTOADD; loop++) {
 144         sprintf(buf, "id%d", loop);
 145         id = OPENSSL_strdup(buf);
 146         sprintf(buf, "Fake engine type %d", loop);
 147         name = OPENSSL_strdup(buf);
 148         if (!TEST_ptr(block[loop] = ENGINE_new())
 149                 || !TEST_true(ENGINE_set_id(block[loop], id))
 150                 || !TEST_true(ENGINE_set_name(block[loop], name)))
 151             goto end;
 152     }
 153     for (loop = 0; loop < NUMTOADD; loop++) {
 154         if (!TEST_true(ENGINE_add(block[loop]))) {
 155             test_note("Adding stopped at %d, (%s,%s)",
 156                       loop, ENGINE_get_id(block[loop]),
 157                       ENGINE_get_name(block[loop]));
 158             goto cleanup_loop;
 159         }
 160     }
 161  cleanup_loop:
 162     TEST_info("About to empty the engine-type list");
 163     while ((ptr = ENGINE_get_first()) != NULL) {
 164         if (!TEST_true(ENGINE_remove(ptr)))
 165             goto end;
 166         ENGINE_free(ptr);
 167     }
 168     for (loop = 0; loop < NUMTOADD; loop++) {
 169         OPENSSL_free((void *)ENGINE_get_id(block[loop]));
 170         OPENSSL_free((void *)ENGINE_get_name(block[loop]));
 171     }
 172     to_return = 1;
 173
 174  end:
 175     ENGINE_free(new_h1);
 176     ENGINE_free(new_h2);
 177     ENGINE_free(new_h3);
 178     ENGINE_free(new_h4);
 179     for (loop = 0; loop < NUMTOADD; loop++)
 180         ENGINE_free(block[loop]);
 181     return to_return;
 182 }
 183
 184 /* Test EVP_PKEY method */
 185 static EVP_PKEY_METHOD *test_rsa = NULL;
 186
 187 static int called_encrypt = 0;
 188
 189 /* Test function to check operation has been redirected */
 190 static int test_encrypt(EVP_PKEY_CTX *ctx, unsigned char *sig,
 191                         size_t *siglen, const unsigned char *tbs, size_t tbslen)
 192 {
 193     called_encrypt = 1;
 194     return 1;
 195 }
 196
 197 static int test_pkey_meths(ENGINE *e, EVP_PKEY_METHOD **pmeth,
 198                            const int **pnids, int nid)
 199 {
 200     static const int rnid = EVP_PKEY_RSA;
 201     if (pmeth == NULL) {
 202         *pnids = &rnid;
 203         return 1;
 204     }
 205
 206     if (nid == EVP_PKEY_RSA) {
 207         *pmeth = test_rsa;
 208         return 1;
 209     }
 210
 211     *pmeth = NULL;
 212     return 0;
 213 }
 214
 215 /* Return a test EVP_PKEY value */
 216
 217 static EVP_PKEY *get_test_pkey(void)
 218 {
 219     static unsigned char n[] =
 220         "\x00\xAA\x36\xAB\xCE\x88\xAC\xFD\xFF\x55\x52\x3C\x7F\xC4\x52\x3F"
 221         "\x90\xEF\xA0\x0D\xF3\x77\x4A\x25\x9F\x2E\x62\xB4\xC5\xD9\x9C\xB5"
 222         "\xAD\xB3\x00\xA0\x28\x5E\x53\x01\x93\x0E\x0C\x70\xFB\x68\x76\x93"
 223         "\x9C\xE6\x16\xCE\x62\x4A\x11\xE0\x08\x6D\x34\x1E\xBC\xAC\xA0\xA1"
 224         "\xF5";
 225     static unsigned char e[] = "\x11";
 226
 227     RSA *rsa = RSA_new();
 228     EVP_PKEY *pk = EVP_PKEY_new();
 229
 230     if (rsa == NULL || pk == NULL || !EVP_PKEY_assign_RSA(pk, rsa)) {
 231         RSA_free(rsa);
 232         EVP_PKEY_free(pk);
 233         return NULL;
 234     }
 235
 236     if (!RSA_set0_key(rsa, BN_bin2bn(n, sizeof(n)-1, NULL),
 237                       BN_bin2bn(e, sizeof(e)-1, NULL), NULL)) {
 238         EVP_PKEY_free(pk);
 239         return NULL;
 240     }
 241
 242     return pk;
 243 }
 244
 245 static int test_redirect(void)
 246 {
 247     const unsigned char pt[] = "Hello World\n";
 248     unsigned char *tmp = NULL;
 249     size_t len;
 250     EVP_PKEY_CTX *ctx = NULL;
 251     ENGINE *e = NULL;
 252     EVP_PKEY *pkey = NULL;
 253
 254     int to_return = 0;
 255
 256     if (!TEST_ptr(pkey = get_test_pkey()))
 257         goto err;
 258
 259     len = EVP_PKEY_size(pkey);
 260     if (!TEST_ptr(tmp = OPENSSL_malloc(len)))
 261         goto err;
 262
 263     if (!TEST_ptr(ctx = EVP_PKEY_CTX_new(pkey, NULL)))
 264         goto err;
 265     TEST_info("EVP_PKEY_encrypt test: no redirection");
 266     /* Encrypt some data: should succeed but not be redirected */
 267     if (!TEST_int_gt(EVP_PKEY_encrypt_init(ctx), 0)
 268             || !TEST_int_gt(EVP_PKEY_encrypt(ctx, tmp, &len, pt, sizeof(pt)), 0)
 269             || !TEST_false(called_encrypt))
 270         goto err;
 271     EVP_PKEY_CTX_free(ctx);
 272     ctx = NULL;
 273
 274     /* Create a test ENGINE */
 275     if (!TEST_ptr(e = ENGINE_new())
 276             || !TEST_true(ENGINE_set_id(e, "Test redirect engine"))
 277             || !TEST_true(ENGINE_set_name(e, "Test redirect engine")))
 278         goto err;
 279
 280     /*
 281      * Try to create a context for this engine and test key.
 282      * Try setting test key engine. Both should fail because the
 283      * engine has no public key methods.
 284      */
 285     if (!TEST_ptr_null(EVP_PKEY_CTX_new(pkey, e))
 286             || !TEST_int_le(EVP_PKEY_set1_engine(pkey, e), 0))
 287         goto err;
 288
 289     /* Setup an empty test EVP_PKEY_METHOD and set callback to return it */
 290     if (!TEST_ptr(test_rsa = EVP_PKEY_meth_new(EVP_PKEY_RSA, 0)))
 291         goto err;
 292     ENGINE_set_pkey_meths(e, test_pkey_meths);
 293
 294     /* Getting a context for test ENGINE should now succeed */
 295     if (!TEST_ptr(ctx = EVP_PKEY_CTX_new(pkey, e)))
 296         goto err;
 297     /* Encrypt should fail because operation is not supported */
 298     if (!TEST_int_le(EVP_PKEY_encrypt_init(ctx), 0))
 299         goto err;
 300     EVP_PKEY_CTX_free(ctx);
 301     ctx = NULL;
 302
 303     /* Add test encrypt operation to method */
 304     EVP_PKEY_meth_set_encrypt(test_rsa, 0, test_encrypt);
 305
 306     TEST_info("EVP_PKEY_encrypt test: redirection via EVP_PKEY_CTX_new()");
 307     if (!TEST_ptr(ctx = EVP_PKEY_CTX_new(pkey, e)))
 308         goto err;
 309     /* Encrypt some data: should succeed and be redirected */
 310     if (!TEST_int_gt(EVP_PKEY_encrypt_init(ctx), 0)
 311             || !TEST_int_gt(EVP_PKEY_encrypt(ctx, tmp, &len, pt, sizeof(pt)), 0)
 312             || !TEST_true(called_encrypt))
 313         goto err;
 314
 315     EVP_PKEY_CTX_free(ctx);
 316     ctx = NULL;
 317     called_encrypt = 0;
 318
 319     /* Create context with default engine: should not be redirected */
 320     if (!TEST_ptr(ctx = EVP_PKEY_CTX_new(pkey, NULL))
 321             || !TEST_int_gt(EVP_PKEY_encrypt_init(ctx), 0)
 322             || !TEST_int_gt(EVP_PKEY_encrypt(ctx, tmp, &len, pt, sizeof(pt)), 0)
 323             || !TEST_false(called_encrypt))
 324         goto err;
 325
 326     EVP_PKEY_CTX_free(ctx);
 327     ctx = NULL;
 328
 329     /* Set engine explicitly for test key */
 330     if (!TEST_true(EVP_PKEY_set1_engine(pkey, e)))
 331         goto err;
 332
 333     TEST_info("EVP_PKEY_encrypt test: redirection via EVP_PKEY_set1_engine()");
 334
 335     /* Create context with default engine: should be redirected now */
 336     if (!TEST_ptr(ctx = EVP_PKEY_CTX_new(pkey, NULL))
 337             || !TEST_int_gt(EVP_PKEY_encrypt_init(ctx), 0)
 338             || !TEST_int_gt(EVP_PKEY_encrypt(ctx, tmp, &len, pt, sizeof(pt)), 0)
 339             || !TEST_true(called_encrypt))
 340         goto err;
 341
 342     to_return = 1;
 343
 344  err:
 345     EVP_PKEY_CTX_free(ctx);
 346     EVP_PKEY_free(pkey);
 347     ENGINE_free(e);
 348     OPENSSL_free(tmp);
 349     return to_return;
 350 }
 351 #endif
 352
 353 int global_init(void)
 354 {
 355     /*
 356      * If the config file gets loaded, the dynamic engine will be loaded,
 357      * and that interferes with our test above.
 358      */
 359     return OPENSSL_init_crypto(OPENSSL_INIT_NO_LOAD_CONFIG, NULL);
 360 }
 361
 362 int setup_tests(void)
 363 {
 364 #ifdef OPENSSL_NO_ENGINE
 365     TEST_note("No ENGINE support");
 366 #else
 367     ADD_TEST(test_engines);
 368     ADD_TEST(test_redirect);
 369 #endif
 370     return 1;
 371 }