test/enginetest.c

   1 /*
   2  * Copyright 2000-2017 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the Apache License 2.0 (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 *eid[NUMTOADD];
  48     char *ename[NUMTOADD];
  49     char buf[256];
  50     ENGINE *ptr;
  51     int loop;
  52     int to_return = 0;
  53     ENGINE *new_h1 = NULL;
  54     ENGINE *new_h2 = NULL;
  55     ENGINE *new_h3 = NULL;
  56     ENGINE *new_h4 = NULL;
  57
  58     memset(block, 0, sizeof(block));
  59     if (!TEST_ptr(new_h1 = ENGINE_new())
  60             || !TEST_true(ENGINE_set_id(new_h1, "test_id0"))
  61             || !TEST_true(ENGINE_set_name(new_h1, "First test item"))
  62             || !TEST_ptr(new_h2 = ENGINE_new())
  63             || !TEST_true(ENGINE_set_id(new_h2, "test_id1"))
  64             || !TEST_true(ENGINE_set_name(new_h2, "Second test item"))
  65             || !TEST_ptr(new_h3 = ENGINE_new())
  66             || !TEST_true(ENGINE_set_id(new_h3, "test_id2"))
  67             || !TEST_true(ENGINE_set_name(new_h3, "Third test item"))
  68             || !TEST_ptr(new_h4 = ENGINE_new())
  69             || !TEST_true(ENGINE_set_id(new_h4, "test_id3"))
  70             || !TEST_true(ENGINE_set_name(new_h4, "Fourth test item")))
  71         goto end;
  72     TEST_info("Engines:");
  73     display_engine_list();
  74
  75     if (!TEST_true(ENGINE_add(new_h1)))
  76         goto end;
  77     TEST_info("Engines:");
  78     display_engine_list();
  79
  80     ptr = ENGINE_get_first();
  81     if (!TEST_true(ENGINE_remove(ptr)))
  82         goto end;
  83     ENGINE_free(ptr);
  84     TEST_info("Engines:");
  85     display_engine_list();
  86
  87     if (!TEST_true(ENGINE_add(new_h3))
  88             || !TEST_true(ENGINE_add(new_h2)))
  89         goto end;
  90     TEST_info("Engines:");
  91     display_engine_list();
  92
  93     if (!TEST_true(ENGINE_remove(new_h2)))
  94         goto end;
  95     TEST_info("Engines:");
  96     display_engine_list();
  97
  98     if (!TEST_true(ENGINE_add(new_h4)))
  99         goto end;
 100     TEST_info("Engines:");
 101     display_engine_list();
 102
 103     /* Should fail. */
 104     if (!TEST_false(ENGINE_add(new_h3)))
 105         goto end;
 106     ERR_clear_error();
 107
 108     /* Should fail. */
 109     if (!TEST_false(ENGINE_remove(new_h2)))
 110         goto end;
 111     ERR_clear_error();
 112
 113     if (!TEST_true(ENGINE_remove(new_h3)))
 114         goto end;
 115     TEST_info("Engines:");
 116     display_engine_list();
 117
 118     if (!TEST_true(ENGINE_remove(new_h4)))
 119         goto end;
 120     TEST_info("Engines:");
 121     display_engine_list();
 122
 123     /*
 124      * At this point, we should have an empty list, unless some hardware
 125      * support engine got added.  However, since we don't allow the config
 126      * file to be loaded and don't otherwise load any built in engines,
 127      * that is unlikely.  Still, we check, if for nothing else, then to
 128      * notify that something is a little off (and might mean that |new_h1|
 129      * wasn't unloaded when it should have)
 130      */
 131     if ((ptr = ENGINE_get_first()) != NULL) {
 132         if (!ENGINE_remove(ptr))
 133             TEST_info("Remove failed - probably no hardware support present");
 134     }
 135     ENGINE_free(ptr);
 136     TEST_info("Engines:");
 137     display_engine_list();
 138
 139     if (!TEST_true(ENGINE_add(new_h1))
 140             || !TEST_true(ENGINE_remove(new_h1)))
 141         goto end;
 142
 143     TEST_info("About to beef up the engine-type list");
 144     for (loop = 0; loop < NUMTOADD; loop++) {
 145         sprintf(buf, "id%d", loop);
 146         eid[loop] = OPENSSL_strdup(buf);
 147         sprintf(buf, "Fake engine type %d", loop);
 148         ename[loop] = OPENSSL_strdup(buf);
 149         if (!TEST_ptr(block[loop] = ENGINE_new())
 150                 || !TEST_true(ENGINE_set_id(block[loop], eid[loop]))
 151                 || !TEST_true(ENGINE_set_name(block[loop], ename[loop])))
 152             goto end;
 153     }
 154     for (loop = 0; loop < NUMTOADD; loop++) {
 155         if (!TEST_true(ENGINE_add(block[loop]))) {
 156             test_note("Adding stopped at %d, (%s,%s)",
 157                       loop, ENGINE_get_id(block[loop]),
 158                       ENGINE_get_name(block[loop]));
 159             goto cleanup_loop;
 160         }
 161     }
 162  cleanup_loop:
 163     TEST_info("About to empty the engine-type list");
 164     while ((ptr = ENGINE_get_first()) != NULL) {
 165         if (!TEST_true(ENGINE_remove(ptr)))
 166             goto end;
 167         ENGINE_free(ptr);
 168     }
 169     for (loop = 0; loop < NUMTOADD; loop++) {
 170         OPENSSL_free(eid[loop]);
 171         OPENSSL_free(ename[loop]);
 172     }
 173     to_return = 1;
 174
 175  end:
 176     ENGINE_free(new_h1);
 177     ENGINE_free(new_h2);
 178     ENGINE_free(new_h3);
 179     ENGINE_free(new_h4);
 180     for (loop = 0; loop < NUMTOADD; loop++)
 181         ENGINE_free(block[loop]);
 182     return to_return;
 183 }
 184
 185 /* Test EVP_PKEY method */
 186 static EVP_PKEY_METHOD *test_rsa = NULL;
 187
 188 static int called_encrypt = 0;
 189
 190 /* Test function to check operation has been redirected */
 191 static int test_encrypt(EVP_PKEY_CTX *ctx, unsigned char *sig,
 192                         size_t *siglen, const unsigned char *tbs, size_t tbslen)
 193 {
 194     called_encrypt = 1;
 195     return 1;
 196 }
 197
 198 static int test_pkey_meths(ENGINE *e, EVP_PKEY_METHOD **pmeth,
 199                            const int **pnids, int nid)
 200 {
 201     static const int rnid = EVP_PKEY_RSA;
 202     if (pmeth == NULL) {
 203         *pnids = &rnid;
 204         return 1;
 205     }
 206
 207     if (nid == EVP_PKEY_RSA) {
 208         *pmeth = test_rsa;
 209         return 1;
 210     }
 211
 212     *pmeth = NULL;
 213     return 0;
 214 }
 215
 216 /* Return a test EVP_PKEY value */
 217
 218 static EVP_PKEY *get_test_pkey(void)
 219 {
 220     static unsigned char n[] =
 221         "\x00\xAA\x36\xAB\xCE\x88\xAC\xFD\xFF\x55\x52\x3C\x7F\xC4\x52\x3F"
 222         "\x90\xEF\xA0\x0D\xF3\x77\x4A\x25\x9F\x2E\x62\xB4\xC5\xD9\x9C\xB5"
 223         "\xAD\xB3\x00\xA0\x28\x5E\x53\x01\x93\x0E\x0C\x70\xFB\x68\x76\x93"
 224         "\x9C\xE6\x16\xCE\x62\x4A\x11\xE0\x08\x6D\x34\x1E\xBC\xAC\xA0\xA1"
 225         "\xF5";
 226     static unsigned char e[] = "\x11";
 227
 228     RSA *rsa = RSA_new();
 229     EVP_PKEY *pk = EVP_PKEY_new();
 230
 231     if (rsa == NULL || pk == NULL || !EVP_PKEY_assign_RSA(pk, rsa)) {
 232         RSA_free(rsa);
 233         EVP_PKEY_free(pk);
 234         return NULL;
 235     }
 236
 237     if (!RSA_set0_key(rsa, BN_bin2bn(n, sizeof(n)-1, NULL),
 238                       BN_bin2bn(e, sizeof(e)-1, NULL), NULL)) {
 239         EVP_PKEY_free(pk);
 240         return NULL;
 241     }
 242
 243     return pk;
 244 }
 245
 246 static int test_redirect(void)
 247 {
 248     const unsigned char pt[] = "Hello World\n";
 249     unsigned char *tmp = NULL;
 250     size_t len;
 251     EVP_PKEY_CTX *ctx = NULL;
 252     ENGINE *e = NULL;
 253     EVP_PKEY *pkey = NULL;
 254
 255     int to_return = 0;
 256
 257     if (!TEST_ptr(pkey = get_test_pkey()))
 258         goto err;
 259
 260     len = EVP_PKEY_size(pkey);
 261     if (!TEST_ptr(tmp = OPENSSL_malloc(len)))
 262         goto err;
 263
 264     if (!TEST_ptr(ctx = EVP_PKEY_CTX_new(pkey, NULL)))
 265         goto err;
 266     TEST_info("EVP_PKEY_encrypt test: no redirection");
 267     /* Encrypt some data: should succeed but not be redirected */
 268     if (!TEST_int_gt(EVP_PKEY_encrypt_init(ctx), 0)
 269             || !TEST_int_gt(EVP_PKEY_encrypt(ctx, tmp, &len, pt, sizeof(pt)), 0)
 270             || !TEST_false(called_encrypt))
 271         goto err;
 272     EVP_PKEY_CTX_free(ctx);
 273     ctx = NULL;
 274
 275     /* Create a test ENGINE */
 276     if (!TEST_ptr(e = ENGINE_new())
 277             || !TEST_true(ENGINE_set_id(e, "Test redirect engine"))
 278             || !TEST_true(ENGINE_set_name(e, "Test redirect engine")))
 279         goto err;
 280
 281     /*
 282      * Try to create a context for this engine and test key.
 283      * Try setting test key engine. Both should fail because the
 284      * engine has no public key methods.
 285      */
 286     if (!TEST_ptr_null(ctx = EVP_PKEY_CTX_new(pkey, e))
 287             || !TEST_int_le(EVP_PKEY_set1_engine(pkey, e), 0))
 288         goto err;
 289
 290     /* Setup an empty test EVP_PKEY_METHOD and set callback to return it */
 291     if (!TEST_ptr(test_rsa = EVP_PKEY_meth_new(EVP_PKEY_RSA, 0)))
 292         goto err;
 293     ENGINE_set_pkey_meths(e, test_pkey_meths);
 294
 295     /* Getting a context for test ENGINE should now succeed */
 296     if (!TEST_ptr(ctx = EVP_PKEY_CTX_new(pkey, e)))
 297         goto err;
 298     /* Encrypt should fail because operation is not supported */
 299     if (!TEST_int_le(EVP_PKEY_encrypt_init(ctx), 0))
 300         goto err;
 301     EVP_PKEY_CTX_free(ctx);
 302     ctx = NULL;
 303
 304     /* Add test encrypt operation to method */
 305     EVP_PKEY_meth_set_encrypt(test_rsa, 0, test_encrypt);
 306
 307     TEST_info("EVP_PKEY_encrypt test: redirection via EVP_PKEY_CTX_new()");
 308     if (!TEST_ptr(ctx = EVP_PKEY_CTX_new(pkey, e)))
 309         goto err;
 310     /* Encrypt some data: should succeed and be redirected */
 311     if (!TEST_int_gt(EVP_PKEY_encrypt_init(ctx), 0)
 312             || !TEST_int_gt(EVP_PKEY_encrypt(ctx, tmp, &len, pt, sizeof(pt)), 0)
 313             || !TEST_true(called_encrypt))
 314         goto err;
 315
 316     EVP_PKEY_CTX_free(ctx);
 317     ctx = NULL;
 318     called_encrypt = 0;
 319
 320     /* Create context with default engine: should not be redirected */
 321     if (!TEST_ptr(ctx = EVP_PKEY_CTX_new(pkey, NULL))
 322             || !TEST_int_gt(EVP_PKEY_encrypt_init(ctx), 0)
 323             || !TEST_int_gt(EVP_PKEY_encrypt(ctx, tmp, &len, pt, sizeof(pt)), 0)
 324             || !TEST_false(called_encrypt))
 325         goto err;
 326
 327     EVP_PKEY_CTX_free(ctx);
 328     ctx = NULL;
 329
 330     /* Set engine explicitly for test key */
 331     if (!TEST_true(EVP_PKEY_set1_engine(pkey, e)))
 332         goto err;
 333
 334     TEST_info("EVP_PKEY_encrypt test: redirection via EVP_PKEY_set1_engine()");
 335
 336     /* Create context with default engine: should be redirected now */
 337     if (!TEST_ptr(ctx = EVP_PKEY_CTX_new(pkey, NULL))
 338             || !TEST_int_gt(EVP_PKEY_encrypt_init(ctx), 0)
 339             || !TEST_int_gt(EVP_PKEY_encrypt(ctx, tmp, &len, pt, sizeof(pt)), 0)
 340             || !TEST_true(called_encrypt))
 341         goto err;
 342
 343     to_return = 1;
 344
 345  err:
 346     EVP_PKEY_CTX_free(ctx);
 347     EVP_PKEY_free(pkey);
 348     ENGINE_free(e);
 349     OPENSSL_free(tmp);
 350     return to_return;
 351 }
 352 #endif
 353
 354 int global_init(void)
 355 {
 356     /*
 357      * If the config file gets loaded, the dynamic engine will be loaded,
 358      * and that interferes with our test above.
 359      */
 360     return OPENSSL_init_crypto(OPENSSL_INIT_NO_LOAD_CONFIG, NULL);
 361 }
 362
 363 int setup_tests(void)
 364 {
 365 #ifdef OPENSSL_NO_ENGINE
 366     TEST_note("No ENGINE support");
 367 #else
 368     ADD_TEST(test_engines);
 369     ADD_TEST(test_redirect);
 370 #endif
 371     return 1;
 372 }