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      * Depending on whether there's any hardware support compiled in, this
 125      * remove may be destined to fail.
 126      */
 127     if ((ptr = ENGINE_get_first()) != NULL) {
 128         if (!ENGINE_remove(ptr))
 129             TEST_info("Remove failed - probably no hardware support present");
 130     }
 131     ENGINE_free(ptr);
 132     TEST_info("Engines:");
 133     display_engine_list();
 134
 135     if (!TEST_true(ENGINE_add(new_h1))
 136             || !TEST_true(ENGINE_remove(new_h1)))
 137         goto end;
 138
 139     TEST_info("About to beef up the engine-type list");
 140     for (loop = 0; loop < NUMTOADD; loop++) {
 141         sprintf(buf, "id%d", loop);
 142         eid[loop] = OPENSSL_strdup(buf);
 143         sprintf(buf, "Fake engine type %d", loop);
 144         ename[loop] = OPENSSL_strdup(buf);
 145         if (!TEST_ptr(block[loop] = ENGINE_new())
 146                 || !TEST_true(ENGINE_set_id(block[loop], eid[loop]))
 147                 || !TEST_true(ENGINE_set_name(block[loop], ename[loop])))
 148             goto end;
 149     }
 150     for (loop = 0; loop < NUMTOADD; loop++) {
 151         if (!TEST_true(ENGINE_add(block[loop]))) {
 152             test_note("Adding stopped at %d, (%s,%s)",
 153                       loop, ENGINE_get_id(block[loop]),
 154                       ENGINE_get_name(block[loop]));
 155             goto cleanup_loop;
 156         }
 157     }
 158  cleanup_loop:
 159     TEST_info("About to empty the engine-type list");
 160     while ((ptr = ENGINE_get_first()) != NULL) {
 161         if (!TEST_true(ENGINE_remove(ptr)))
 162             goto end;
 163         ENGINE_free(ptr);
 164     }
 165     for (loop = 0; loop < NUMTOADD; loop++) {
 166         OPENSSL_free(eid[loop]);
 167         OPENSSL_free(ename[loop]);
 168     }
 169     to_return = 1;
 170
 171  end:
 172     ENGINE_free(new_h1);
 173     ENGINE_free(new_h2);
 174     ENGINE_free(new_h3);
 175     ENGINE_free(new_h4);
 176     for (loop = 0; loop < NUMTOADD; loop++)
 177         ENGINE_free(block[loop]);
 178     return to_return;
 179 }
 180
 181 /* Test EVP_PKEY method */
 182 static EVP_PKEY_METHOD *test_rsa = NULL;
 183
 184 static int called_encrypt = 0;
 185
 186 /* Test function to check operation has been redirected */
 187 static int test_encrypt(EVP_PKEY_CTX *ctx, unsigned char *sig,
 188                         size_t *siglen, const unsigned char *tbs, size_t tbslen)
 189 {
 190     called_encrypt = 1;
 191     return 1;
 192 }
 193
 194 static int test_pkey_meths(ENGINE *e, EVP_PKEY_METHOD **pmeth,
 195                            const int **pnids, int nid)
 196 {
 197     static const int rnid = EVP_PKEY_RSA;
 198     if (pmeth == NULL) {
 199         *pnids = &rnid;
 200         return 1;
 201     }
 202
 203     if (nid == EVP_PKEY_RSA) {
 204         *pmeth = test_rsa;
 205         return 1;
 206     }
 207
 208     *pmeth = NULL;
 209     return 0;
 210 }
 211
 212 /* Return a test EVP_PKEY value */
 213
 214 static EVP_PKEY *get_test_pkey(void)
 215 {
 216     static unsigned char n[] =
 217         "\x00\xAA\x36\xAB\xCE\x88\xAC\xFD\xFF\x55\x52\x3C\x7F\xC4\x52\x3F"
 218         "\x90\xEF\xA0\x0D\xF3\x77\x4A\x25\x9F\x2E\x62\xB4\xC5\xD9\x9C\xB5"
 219         "\xAD\xB3\x00\xA0\x28\x5E\x53\x01\x93\x0E\x0C\x70\xFB\x68\x76\x93"
 220         "\x9C\xE6\x16\xCE\x62\x4A\x11\xE0\x08\x6D\x34\x1E\xBC\xAC\xA0\xA1"
 221         "\xF5";
 222     static unsigned char e[] = "\x11";
 223
 224     RSA *rsa = RSA_new();
 225     EVP_PKEY *pk = EVP_PKEY_new();
 226
 227     if (rsa == NULL || pk == NULL || !EVP_PKEY_assign_RSA(pk, rsa)) {
 228         RSA_free(rsa);
 229         EVP_PKEY_free(pk);
 230         return NULL;
 231     }
 232
 233     if (!RSA_set0_key(rsa, BN_bin2bn(n, sizeof(n)-1, NULL),
 234                       BN_bin2bn(e, sizeof(e)-1, NULL), NULL)) {
 235         EVP_PKEY_free(pk);
 236         return NULL;
 237     }
 238
 239     return pk;
 240 }
 241
 242 static int test_redirect(void)
 243 {
 244     const unsigned char pt[] = "Hello World\n";
 245     unsigned char *tmp = NULL;
 246     size_t len;
 247     EVP_PKEY_CTX *ctx = NULL;
 248     ENGINE *e = NULL;
 249     EVP_PKEY *pkey = NULL;
 250
 251     int to_return = 0;
 252
 253     if (!TEST_ptr(pkey = get_test_pkey()))
 254         goto err;
 255
 256     len = EVP_PKEY_size(pkey);
 257     if (!TEST_ptr(tmp = OPENSSL_malloc(len)))
 258         goto err;
 259
 260     if (!TEST_ptr(ctx = EVP_PKEY_CTX_new(pkey, NULL)))
 261         goto err;
 262     TEST_info("EVP_PKEY_encrypt test: no redirection");
 263     /* Encrypt some data: should succeed but not be redirected */
 264     if (!TEST_int_gt(EVP_PKEY_encrypt_init(ctx), 0)
 265             || !TEST_int_gt(EVP_PKEY_encrypt(ctx, tmp, &len, pt, sizeof(pt)), 0)
 266             || !TEST_false(called_encrypt))
 267         goto err;
 268     EVP_PKEY_CTX_free(ctx);
 269     ctx = NULL;
 270
 271     /* Create a test ENGINE */
 272     if (!TEST_ptr(e = ENGINE_new())
 273             || !TEST_true(ENGINE_set_id(e, "Test redirect engine"))
 274             || !TEST_true(ENGINE_set_name(e, "Test redirect engine")))
 275         goto err;
 276
 277     /*
 278      * Try to create a context for this engine and test key.
 279      * Try setting test key engine. Both should fail because the
 280      * engine has no public key methods.
 281      */
 282     if (!TEST_ptr_null(ctx = EVP_PKEY_CTX_new(pkey, e))
 283             || !TEST_int_le(EVP_PKEY_set1_engine(pkey, e), 0))
 284         goto err;
 285
 286     /* Setup an empty test EVP_PKEY_METHOD and set callback to return it */
 287     if (!TEST_ptr(test_rsa = EVP_PKEY_meth_new(EVP_PKEY_RSA, 0)))
 288         goto err;
 289     ENGINE_set_pkey_meths(e, test_pkey_meths);
 290
 291     /* Getting a context for test ENGINE should now succeed */
 292     if (!TEST_ptr(ctx = EVP_PKEY_CTX_new(pkey, e)))
 293         goto err;
 294     /* Encrypt should fail because operation is not supported */
 295     if (!TEST_int_le(EVP_PKEY_encrypt_init(ctx), 0))
 296         goto err;
 297     EVP_PKEY_CTX_free(ctx);
 298     ctx = NULL;
 299
 300     /* Add test encrypt operation to method */
 301     EVP_PKEY_meth_set_encrypt(test_rsa, 0, test_encrypt);
 302
 303     TEST_info("EVP_PKEY_encrypt test: redirection via EVP_PKEY_CTX_new()");
 304     if (!TEST_ptr(ctx = EVP_PKEY_CTX_new(pkey, e)))
 305         goto err;
 306     /* Encrypt some data: should succeed and be redirected */
 307     if (!TEST_int_gt(EVP_PKEY_encrypt_init(ctx), 0)
 308             || !TEST_int_gt(EVP_PKEY_encrypt(ctx, tmp, &len, pt, sizeof(pt)), 0)
 309             || !TEST_true(called_encrypt))
 310         goto err;
 311
 312     EVP_PKEY_CTX_free(ctx);
 313     ctx = NULL;
 314     called_encrypt = 0;
 315
 316     /* Create context with default engine: should not be redirected */
 317     if (!TEST_ptr(ctx = EVP_PKEY_CTX_new(pkey, NULL))
 318             || !TEST_int_gt(EVP_PKEY_encrypt_init(ctx), 0)
 319             || !TEST_int_gt(EVP_PKEY_encrypt(ctx, tmp, &len, pt, sizeof(pt)), 0)
 320             || !TEST_false(called_encrypt))
 321         goto err;
 322
 323     EVP_PKEY_CTX_free(ctx);
 324     ctx = NULL;
 325
 326     /* Set engine explicitly for test key */
 327     if (!TEST_true(EVP_PKEY_set1_engine(pkey, e)))
 328         goto err;
 329
 330     TEST_info("EVP_PKEY_encrypt test: redirection via EVP_PKEY_set1_engine()");
 331
 332     /* Create context with default engine: should be redirected now */
 333     if (!TEST_ptr(ctx = EVP_PKEY_CTX_new(pkey, NULL))
 334             || !TEST_int_gt(EVP_PKEY_encrypt_init(ctx), 0)
 335             || !TEST_int_gt(EVP_PKEY_encrypt(ctx, tmp, &len, pt, sizeof(pt)), 0)
 336             || !TEST_true(called_encrypt))
 337         goto err;
 338
 339     to_return = 1;
 340
 341  err:
 342     EVP_PKEY_CTX_free(ctx);
 343     EVP_PKEY_free(pkey);
 344     ENGINE_free(e);
 345     OPENSSL_free(tmp);
 346     return to_return;
 347 }
 348 #endif
 349
 350 int setup_tests(void)
 351 {
 352 #ifdef OPENSSL_NO_ENGINE
 353     TEST_note("No ENGINE support");
 354 #else
 355     ADD_TEST(test_engines);
 356     ADD_TEST(test_redirect);
 357 #endif
 358     return 1;
 359 }