2 * Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved.
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
12 #include "ssltestlib.h"
15 static char *cert = NULL;
16 static char *privkey = NULL;
18 #define TEST_PLAINTEXT_OVERFLOW_OK 0
19 #define TEST_PLAINTEXT_OVERFLOW_NOT_OK 1
20 #define TEST_ENCRYPTED_OVERFLOW_TLS1_3_OK 2
21 #define TEST_ENCRYPTED_OVERFLOW_TLS1_3_NOT_OK 3
22 #define TEST_ENCRYPTED_OVERFLOW_TLS1_2_OK 4
23 #define TEST_ENCRYPTED_OVERFLOW_TLS1_2_NOT_OK 5
25 #define TOTAL_RECORD_OVERFLOW_TESTS 6
27 static int write_record(BIO *b, size_t len, int rectype, int recversion)
29 unsigned char header[SSL3_RT_HEADER_LENGTH];
31 unsigned char buf[256];
33 memset(buf, 0, sizeof(buf));
36 header[1] = (recversion >> 8) & 0xff;
37 header[2] = recversion & 0xff;
38 header[3] = (len >> 8) & 0xff;
39 header[4] = len & 0xff;
41 if (!BIO_write_ex(b, header, SSL3_RT_HEADER_LENGTH, &written)
42 || written != SSL3_RT_HEADER_LENGTH)
48 if (len > sizeof(buf))
53 if (!BIO_write_ex(b, buf, outlen, &written)
63 static int fail_due_to_record_overflow(int enc)
65 long err = ERR_peek_error();
69 reason = SSL_R_ENCRYPTED_LENGTH_TOO_LONG;
71 reason = SSL_R_DATA_LENGTH_TOO_LONG;
73 if (ERR_GET_LIB(err) == ERR_LIB_SSL
74 && ERR_GET_REASON(err) == reason)
80 static int test_record_overflow(int idx)
82 SSL_CTX *cctx = NULL, *sctx = NULL;
83 SSL *clientssl = NULL, *serverssl = NULL;
92 #ifdef OPENSSL_NO_TLS1_2
93 if (idx == TEST_ENCRYPTED_OVERFLOW_TLS1_2_OK
94 || idx == TEST_ENCRYPTED_OVERFLOW_TLS1_2_NOT_OK)
97 #ifdef OPENSSL_NO_TLS1_3
98 if (idx == TEST_ENCRYPTED_OVERFLOW_TLS1_3_OK
99 || idx == TEST_ENCRYPTED_OVERFLOW_TLS1_3_NOT_OK)
105 if (!TEST_true(create_ssl_ctx_pair(TLS_server_method(), TLS_client_method(),
107 &sctx, &cctx, cert, privkey)))
110 if (idx == TEST_ENCRYPTED_OVERFLOW_TLS1_2_OK
111 || idx == TEST_ENCRYPTED_OVERFLOW_TLS1_2_NOT_OK) {
112 len = SSL3_RT_MAX_ENCRYPTED_LENGTH;
113 #ifndef OPENSSL_NO_COMP
114 len -= SSL3_RT_MAX_COMPRESSED_OVERHEAD;
116 SSL_CTX_set_max_proto_version(sctx, TLS1_2_VERSION);
117 } else if (idx == TEST_ENCRYPTED_OVERFLOW_TLS1_3_OK
118 || idx == TEST_ENCRYPTED_OVERFLOW_TLS1_3_NOT_OK) {
119 len = SSL3_RT_MAX_TLS13_ENCRYPTED_LENGTH;
122 if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
126 serverbio = SSL_get_rbio(serverssl);
128 if (idx == TEST_PLAINTEXT_OVERFLOW_OK
129 || idx == TEST_PLAINTEXT_OVERFLOW_NOT_OK) {
130 len = SSL3_RT_MAX_PLAIN_LENGTH;
132 if (idx == TEST_PLAINTEXT_OVERFLOW_NOT_OK)
135 if (!TEST_true(write_record(serverbio, len,
136 SSL3_RT_HANDSHAKE, TLS1_VERSION)))
139 if (!TEST_int_le(SSL_accept(serverssl), 0))
142 overf_expected = (idx == TEST_PLAINTEXT_OVERFLOW_OK) ? 0 : 1;
143 if (!TEST_int_eq(fail_due_to_record_overflow(0), overf_expected))
149 if (!TEST_true(create_ssl_connection(serverssl, clientssl,
153 if (idx == TEST_ENCRYPTED_OVERFLOW_TLS1_2_NOT_OK
154 || idx == TEST_ENCRYPTED_OVERFLOW_TLS1_3_NOT_OK) {
161 recversion = TLS1_2_VERSION;
163 if (!TEST_true(write_record(serverbio, len, SSL3_RT_APPLICATION_DATA,
167 if (!TEST_false(SSL_read_ex(serverssl, &buf, sizeof(buf), &written)))
170 if (!TEST_int_eq(fail_due_to_record_overflow(1), overf_expected))
184 OPT_TEST_DECLARE_USAGE("certfile privkeyfile\n")
186 int setup_tests(void)
188 if (!TEST_ptr(cert = test_get_argument(0))
189 || !TEST_ptr(privkey = test_get_argument(1)))
192 ADD_ALL_TESTS(test_record_overflow, TOTAL_RECORD_OVERFLOW_TESTS);
196 void cleanup_tests(void)
198 bio_s_mempacket_test_free();