2 * Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
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
12 #include "ssltestlib.h"
14 #include "test_main_custom.h"
16 static char *cert = NULL;
17 static char *privkey = NULL;
19 #define TEST_PLAINTEXT_OVERFLOW_OK 0
20 #define TEST_PLAINTEXT_OVERFLOW_NOT_OK 1
21 #define TEST_ENCRYPTED_OVERFLOW_TLS1_3_OK 2
22 #define TEST_ENCRYPTED_OVERFLOW_TLS1_3_NOT_OK 3
23 #define TEST_ENCRYPTED_OVERFLOW_TLS1_2_OK 4
24 #define TEST_ENCRYPTED_OVERFLOW_TLS1_2_NOT_OK 5
26 #define TOTAL_RECORD_OVERFLOW_TESTS 6
28 static int write_record(BIO *b, size_t len, int rectype, int recversion)
30 unsigned char header[SSL3_RT_HEADER_LENGTH];
32 unsigned char buf[256];
34 memset(buf, 0, sizeof(buf));
37 header[1] = (recversion >> 8) & 0xff;
38 header[2] = recversion & 0xff;
39 header[3] = (len >> 8) & 0xff;
40 header[4] = len & 0xff;
42 if (!BIO_write_ex(b, header, SSL3_RT_HEADER_LENGTH, &written)
43 || written != SSL3_RT_HEADER_LENGTH)
49 if (len > sizeof(buf))
54 if (!BIO_write_ex(b, buf, outlen, &written)
64 static int fail_due_to_record_overflow(int enc)
66 long err = ERR_peek_error();
70 reason = SSL_R_ENCRYPTED_LENGTH_TOO_LONG;
72 reason = SSL_R_DATA_LENGTH_TOO_LONG;
74 if (ERR_GET_LIB(err) == ERR_LIB_SSL
75 && ERR_GET_REASON(err) == reason)
81 static int test_record_plain_overflow(int idx)
83 SSL_CTX *cctx = NULL, *sctx = NULL;
84 SSL *clientssl = NULL, *serverssl = NULL;
93 #ifdef OPENSSL_NO_TLS1_2
94 if (idx == TEST_ENCRYPTED_OVERFLOW_TLS1_2_OK
95 || idx == TEST_ENCRYPTED_OVERFLOW_TLS1_2_NOT_OK)
98 #ifdef OPENSSL_NO_TLS1_3
99 if (idx == TEST_ENCRYPTED_OVERFLOW_TLS1_3_OK
100 || idx == TEST_ENCRYPTED_OVERFLOW_TLS1_3_NOT_OK)
106 if (!create_ssl_ctx_pair(TLS_server_method(), TLS_client_method(), &sctx,
107 &cctx, cert, privkey)) {
108 printf("Unable to create SSL_CTX pair\n");
112 if (idx == TEST_ENCRYPTED_OVERFLOW_TLS1_2_OK
113 || idx == TEST_ENCRYPTED_OVERFLOW_TLS1_2_NOT_OK) {
114 len = SSL3_RT_MAX_ENCRYPTED_LENGTH - SSL3_RT_MAX_COMPRESSED_OVERHEAD;
115 SSL_CTX_set_max_proto_version(sctx, TLS1_2_VERSION);
116 } else if (idx == TEST_ENCRYPTED_OVERFLOW_TLS1_3_OK
117 || idx == TEST_ENCRYPTED_OVERFLOW_TLS1_3_NOT_OK) {
118 len = SSL3_RT_MAX_TLS13_ENCRYPTED_LENGTH;
121 if (!create_ssl_objects(sctx, cctx, &serverssl, &clientssl, NULL, NULL)) {
122 printf("Unable to create SSL objects\n");
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 (!write_record(serverbio, len, SSL3_RT_HANDSHAKE, TLS1_VERSION)) {
136 printf("Unable to write plaintext record\n");
140 if (SSL_accept(serverssl) > 0) {
141 printf("Unexpected success reading plaintext record\n");
145 overf_expected = (idx == TEST_PLAINTEXT_OVERFLOW_OK) ? 0 : 1;
146 if (fail_due_to_record_overflow(0) != overf_expected) {
147 printf("Unexpected error value received\n");
154 if (!create_ssl_connection(serverssl, clientssl, SSL_ERROR_NONE)) {
155 printf("Unable to create SSL connection\n");
159 if (idx == TEST_ENCRYPTED_OVERFLOW_TLS1_2_NOT_OK
160 || idx == TEST_ENCRYPTED_OVERFLOW_TLS1_3_NOT_OK) {
167 if (idx == TEST_ENCRYPTED_OVERFLOW_TLS1_3_OK
168 || idx == TEST_ENCRYPTED_OVERFLOW_TLS1_3_NOT_OK)
169 recversion = TLS1_VERSION;
171 recversion = TLS1_2_VERSION;
173 if (!write_record(serverbio, len, SSL3_RT_APPLICATION_DATA, recversion)) {
174 printf("Unable to write encryprted record\n");
178 if (SSL_read_ex(serverssl, &buf, sizeof(buf), &written)) {
179 printf("Unexpected success reading encrypted record\n");
183 if (fail_due_to_record_overflow(1) != overf_expected) {
184 printf("Unexpected error value received\n");
193 ERR_print_errors_fp(stdout);
202 int test_main(int argc, char *argv[])
207 printf("Invalid argument count\n");
214 ADD_ALL_TESTS(test_record_plain_overflow, TOTAL_RECORD_OVERFLOW_TESTS);
216 testresult = run_tests(argv[0]);
218 bio_s_mempacket_test_free();