test/dtlstest.c

   1 /*
   2  * Copyright 2016-2017 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 <openssl/bio.h>
  11 #include <openssl/crypto.h>
  12 #include <openssl/ssl.h>
  13 #include <openssl/err.h>
  14
  15 #include "ssltestlib.h"
  16 #include "testutil.h"
  17 #include "test_main_custom.h"
  18
  19 static char *cert = NULL;
  20 static char *privkey = NULL;
  21
  22 #define NUM_TESTS   2
  23
  24
  25 #define DUMMY_CERT_STATUS_LEN  12
  26
  27 static unsigned char certstatus[] = {
  28     SSL3_RT_HANDSHAKE, /* Content type */
  29     0xfe, 0xfd, /* Record version */
  30     0, 1, /* Epoch */
  31     0, 0, 0, 0, 0, 0x0f, /* Record sequence number */
  32     0, DTLS1_HM_HEADER_LENGTH + DUMMY_CERT_STATUS_LEN - 2,
  33     SSL3_MT_CERTIFICATE_STATUS, /* Cert Status handshake message type */
  34     0, 0, DUMMY_CERT_STATUS_LEN, /* Message len */
  35     0, 5, /* Message sequence */
  36     0, 0, 0, /* Fragment offset */
  37     0, 0, DUMMY_CERT_STATUS_LEN - 2, /* Fragment len */
  38     0x80, 0x80, 0x80, 0x80, 0x80,
  39     0x80, 0x80, 0x80, 0x80, 0x80 /* Dummy data */
  40 };
  41
  42 #define RECORD_SEQUENCE 10
  43
  44 static int test_dtls_unprocessed(int testidx)
  45 {
  46     SSL_CTX *sctx = NULL, *cctx = NULL;
  47     SSL *serverssl1 = NULL, *clientssl1 = NULL;
  48     BIO *c_to_s_fbio, *c_to_s_mempacket;
  49     int testresult = 0;
  50
  51     if (!TEST_true(create_ssl_ctx_pair(DTLS_server_method(),
  52                                        DTLS_client_method(), &sctx,
  53                                        &cctx, cert, privkey)))
  54         return 0;
  55
  56     if (!TEST_true(SSL_CTX_set_cipher_list(cctx, "AES128-SHA")))
  57         goto end;
  58
  59     c_to_s_fbio = BIO_new(bio_f_tls_dump_filter());
  60     if (!TEST_ptr(c_to_s_fbio))
  61         goto end;
  62
  63     /* BIO is freed by create_ssl_connection on error */
  64     if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl1, &clientssl1,
  65                                       NULL, c_to_s_fbio)))
  66         goto end;
  67
  68     if (testidx == 1)
  69         certstatus[RECORD_SEQUENCE] = 0xff;
  70
  71     /*
  72      * Inject a dummy record from the next epoch. In test 0, this should never
  73      * get used because the message sequence number is too big. In test 1 we set
  74      * the record sequence number to be way off in the future. This should not
  75      * have an impact on the record replay protection because the record should
  76      * be dropped before it is marked as arrived
  77      */
  78     c_to_s_mempacket = SSL_get_wbio(clientssl1);
  79     c_to_s_mempacket = BIO_next(c_to_s_mempacket);
  80     mempacket_test_inject(c_to_s_mempacket, (char *)certstatus,
  81                           sizeof(certstatus), 1, INJECT_PACKET_IGNORE_REC_SEQ);
  82
  83     if (!TEST_true(create_ssl_connection(serverssl1, clientssl1,
  84                                          SSL_ERROR_NONE)))
  85         goto end;
  86
  87     testresult = 1;
  88  end:
  89     SSL_free(serverssl1);
  90     SSL_free(clientssl1);
  91     SSL_CTX_free(sctx);
  92     SSL_CTX_free(cctx);
  93
  94     return testresult;
  95 }
  96
  97 int test_main(int argc, char *argv[])
  98 {
  99     int testresult = 1;
 100
 101     if (!TEST_int_eq(argc, 3))
 102         return 1;
 103
 104     cert = argv[1];
 105     privkey = argv[2];
 106
 107     ADD_ALL_TESTS(test_dtls_unprocessed, NUM_TESTS);
 108
 109     testresult = run_tests(argv[0]);
 110
 111     bio_f_tls_dump_filter_free();
 112     bio_s_mempacket_test_free();
 113
 114     return testresult;
 115 }