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