/*
- * Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
#include <openssl/evp.h>
#include <openssl/ssl.h>
#include <openssl/err.h>
+#include <time.h>
#include "../ssl/packet_locl.h"
-#define CLIENT_VERSION_LEN 2
+#include "testutil.h"
+#define CLIENT_VERSION_LEN 2
-#define TOTAL_NUM_TESTS 1
+#define TOTAL_NUM_TESTS 4
/*
* Test that explicitly setting ticket data results in it appearing in the
* ClientHello for a negotiated SSL/TLS version
*/
#define TEST_SET_SESSION_TICK_DATA_VER_NEG 0
+/* Enable padding and make sure ClientHello is long enough to require it */
+#define TEST_ADD_PADDING 1
+/* Enable padding and make sure ClientHello is short enough to not need it */
+#define TEST_PADDING_NOT_NEEDED 2
+/*
+ * Enable padding and add a PSK to the ClientHello (this will also ensure the
+ * ClientHello is long enough to need padding)
+ */
+#define TEST_ADD_PADDING_AND_PSK 3
+
+#define F5_WORKAROUND_MIN_MSG_LEN 0x7f
+#define F5_WORKAROUND_MAX_MSG_LEN 0x200
+
+static const char *sessionfile = NULL;
+/* Dummy ALPN protocols used to pad out the size of the ClientHello */
+static const char alpn_prots[] =
+ "0123456789012345678901234567890123456789012345678901234567890123456789"
+ "0123456789012345678901234567890123456789012345678901234567890123456789"
+ "01234567890123456789";
-int main(int argc, char *argv[])
+static int test_client_hello(int currtest)
{
SSL_CTX *ctx;
- SSL *con;
+ SSL *con = NULL;
BIO *rbio;
BIO *wbio;
- BIO *err;
long len;
unsigned char *data;
- PACKET pkt, pkt2, pkt3;
+ PACKET pkt = {0}, pkt2 = {0}, pkt3 = {0};
char *dummytick = "Hello World!";
- unsigned int type;
+ unsigned int type = 0;
int testresult = 0;
- int currtest = 0;
+ size_t msglen;
+ BIO *sessbio = NULL;
+ SSL_SESSION *sess = NULL;
- err = BIO_new_fp(stderr, BIO_NOCLOSE | BIO_FP_TEXT);
-
- CRYPTO_set_mem_debug(1);
- CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
+#ifdef OPENSSL_NO_TLS1_3
+ if (currtest == TEST_ADD_PADDING_AND_PSK)
+ return 1;
+#endif
/*
* For each test set up an SSL_CTX and SSL and see what ClientHello gets
* produced when we try to connect
*/
- for (; currtest < TOTAL_NUM_TESTS; currtest++) {
- testresult = 0;
- ctx = SSL_CTX_new(TLS_method());
+ ctx = SSL_CTX_new(TLS_method());
+ if (!TEST_ptr(ctx))
+ goto end;
+ if (!TEST_true(SSL_CTX_set_max_proto_version(ctx, TLS_MAX_VERSION)))
+ goto end;
+
+ switch(currtest) {
+ case TEST_SET_SESSION_TICK_DATA_VER_NEG:
+#if !defined(OPENSSL_NO_TLS1_3) && defined(OPENSSL_NO_TLS1_2)
+ /* TLSv1.3 is enabled and TLSv1.2 is disabled so can't do this test */
+ return 1;
+#else
+ /* Testing for session tickets <= TLS1.2; not relevant for 1.3 */
+ if (!TEST_true(SSL_CTX_set_max_proto_version(ctx, TLS1_2_VERSION)))
+ goto end;
+#endif
+ break;
+ case TEST_ADD_PADDING_AND_PSK:
/*
- * This test is testing session tickets for <= TLS1.2. It isn't relevant
- * for TLS1.3
+ * In this case we're doing TLSv1.3 and we're sending a PSK so the
+ * ClientHello is already going to be quite long. To avoid getting one
+ * that is too long for this test we use a restricted ciphersuite list
*/
- if (ctx == NULL || !SSL_CTX_set_max_proto_version(ctx, TLS1_2_VERSION))
- goto end;
-
- con = SSL_new(ctx);
- if (con == NULL)
+ if (!TEST_true(SSL_CTX_set_cipher_list(ctx, "")))
goto end;
-
- rbio = BIO_new(BIO_s_mem());
- wbio = BIO_new(BIO_s_mem());
- if (rbio == NULL || wbio == NULL) {
- BIO_free(rbio);
- BIO_free(wbio);
+ /* Fall through */
+ case TEST_ADD_PADDING:
+ case TEST_PADDING_NOT_NEEDED:
+ SSL_CTX_set_options(ctx, SSL_OP_TLSEXT_PADDING);
+ /* Make sure we get a consistent size across TLS versions */
+ SSL_CTX_clear_options(ctx, SSL_OP_ENABLE_MIDDLEBOX_COMPAT);
+ /*
+ * Add some dummy ALPN protocols so that the ClientHello is at least
+ * F5_WORKAROUND_MIN_MSG_LEN bytes long - meaning padding will be
+ * needed.
+ */
+ if (currtest == TEST_ADD_PADDING) {
+ if (!TEST_false(SSL_CTX_set_alpn_protos(ctx,
+ (unsigned char *)alpn_prots,
+ sizeof(alpn_prots) - 1)))
+ goto end;
+ /*
+ * Otherwise we need to make sure we have a small enough message to
+ * not need padding.
+ */
+ } else if (!TEST_true(SSL_CTX_set_cipher_list(ctx,
+ "AES128-SHA"))
+ || !TEST_true(SSL_CTX_set_ciphersuites(ctx,
+ "TLS_AES_128_GCM_SHA256"))) {
goto end;
}
+ break;
- SSL_set_bio(con, rbio, wbio);
- SSL_set_connect_state(con);
+ default:
+ goto end;
+ }
- if (currtest == TEST_SET_SESSION_TICK_DATA_VER_NEG) {
- if (!SSL_set_session_ticket_ext(con, dummytick, strlen(dummytick)))
- goto end;
- }
+ con = SSL_new(ctx);
+ if (!TEST_ptr(con))
+ goto end;
- if (SSL_connect(con) > 0) {
- /* This shouldn't succeed because we don't have a server! */
+ if (currtest == TEST_ADD_PADDING_AND_PSK) {
+ sessbio = BIO_new_file(sessionfile, "r");
+ if (!TEST_ptr(sessbio)) {
+ TEST_info("Unable to open session.pem");
goto end;
}
-
- len = BIO_get_mem_data(wbio, (char **)&data);
- if (!PACKET_buf_init(&pkt, data, len))
- goto end;
-
- /* Skip the record header */
- if (!PACKET_forward(&pkt, SSL3_RT_HEADER_LENGTH))
+ sess = PEM_read_bio_SSL_SESSION(sessbio, NULL, NULL, NULL);
+ if (!TEST_ptr(sess)) {
+ TEST_info("Unable to load SSL_SESSION");
goto end;
-
- /* Skip the handshake message header */
- if (!PACKET_forward(&pkt, SSL3_HM_HEADER_LENGTH))
+ }
+ /*
+ * We reset the creation time so that we don't discard the session as
+ * too old.
+ */
+ if (!TEST_true(SSL_SESSION_set_time(sess, (long)time(NULL)))
+ || !TEST_true(SSL_set_session(con, sess)))
goto end;
+ }
- /* Skip client version and random */
- if (!PACKET_forward(&pkt, CLIENT_VERSION_LEN + SSL3_RANDOM_SIZE))
- goto end;
+ rbio = BIO_new(BIO_s_mem());
+ wbio = BIO_new(BIO_s_mem());
+ if (!TEST_ptr(rbio)|| !TEST_ptr(wbio)) {
+ BIO_free(rbio);
+ BIO_free(wbio);
+ goto end;
+ }
- /* Skip session id */
- if (!PACKET_get_length_prefixed_1(&pkt, &pkt2))
- goto end;
+ SSL_set_bio(con, rbio, wbio);
+ SSL_set_connect_state(con);
- /* Skip ciphers */
- if (!PACKET_get_length_prefixed_2(&pkt, &pkt2))
+ if (currtest == TEST_SET_SESSION_TICK_DATA_VER_NEG) {
+ if (!TEST_true(SSL_set_session_ticket_ext(con, dummytick,
+ strlen(dummytick))))
goto end;
+ }
- /* Skip compression */
- if (!PACKET_get_length_prefixed_1(&pkt, &pkt2))
- goto end;
+ if (!TEST_int_le(SSL_connect(con), 0)) {
+ /* This shouldn't succeed because we don't have a server! */
+ goto end;
+ }
- /* Extensions len */
- if (!PACKET_as_length_prefixed_2(&pkt, &pkt2))
+ len = BIO_get_mem_data(wbio, (char **)&data);
+ if (!TEST_true(PACKET_buf_init(&pkt, data, len))
+ /* Skip the record header */
+ || !PACKET_forward(&pkt, SSL3_RT_HEADER_LENGTH))
+ goto end;
+
+ msglen = PACKET_remaining(&pkt);
+
+ /* Skip the handshake message header */
+ if (!TEST_true(PACKET_forward(&pkt, SSL3_HM_HEADER_LENGTH))
+ /* Skip client version and random */
+ || !TEST_true(PACKET_forward(&pkt, CLIENT_VERSION_LEN
+ + SSL3_RANDOM_SIZE))
+ /* Skip session id */
+ || !TEST_true(PACKET_get_length_prefixed_1(&pkt, &pkt2))
+ /* Skip ciphers */
+ || !TEST_true(PACKET_get_length_prefixed_2(&pkt, &pkt2))
+ /* Skip compression */
+ || !TEST_true(PACKET_get_length_prefixed_1(&pkt, &pkt2))
+ /* Extensions len */
+ || !TEST_true(PACKET_as_length_prefixed_2(&pkt, &pkt2)))
+ goto end;
+
+ /* Loop through all extensions */
+ while (PACKET_remaining(&pkt2)) {
+
+ if (!TEST_true(PACKET_get_net_2(&pkt2, &type))
+ || !TEST_true(PACKET_get_length_prefixed_2(&pkt2, &pkt3)))
goto end;
- /* Loop through all extensions */
- while (PACKET_remaining(&pkt2)) {
-
- if (!PACKET_get_net_2(&pkt2, &type) ||
- !PACKET_get_length_prefixed_2(&pkt2, &pkt3))
- goto end;
-
- if (type == TLSEXT_TYPE_session_ticket) {
- if (currtest == TEST_SET_SESSION_TICK_DATA_VER_NEG) {
- if (PACKET_equal(&pkt3, dummytick, strlen(dummytick))) {
- /* Ticket data is as we expected */
- testresult = 1;
- } else {
- printf("Received session ticket is not as expected\n");
- }
- break;
+ if (type == TLSEXT_TYPE_session_ticket) {
+ if (currtest == TEST_SET_SESSION_TICK_DATA_VER_NEG) {
+ if (TEST_true(PACKET_equal(&pkt3, dummytick,
+ strlen(dummytick)))) {
+ /* Ticket data is as we expected */
+ testresult = 1;
}
+ goto end;
}
-
}
-
- end:
- SSL_free(con);
- SSL_CTX_free(ctx);
- if (!testresult) {
- printf("ClientHello test: FAILED (Test %d)\n", currtest);
- break;
+ if (type == TLSEXT_TYPE_padding) {
+ if (!TEST_false(currtest == TEST_PADDING_NOT_NEEDED))
+ goto end;
+ else if (TEST_true(currtest == TEST_ADD_PADDING
+ || currtest == TEST_ADD_PADDING_AND_PSK))
+ testresult = TEST_true(msglen == F5_WORKAROUND_MAX_MSG_LEN);
}
}
-#ifndef OPENSSL_NO_CRYPTO_MDEBUG
- if (CRYPTO_mem_leaks(err) <= 0)
- testresult = 0;
-#endif
- BIO_free(err);
+ if (currtest == TEST_PADDING_NOT_NEEDED)
+ testresult = 1;
+
+end:
+ SSL_free(con);
+ SSL_CTX_free(ctx);
+ SSL_SESSION_free(sess);
+ BIO_free(sessbio);
+
+ return testresult;
+}
+
+int setup_tests(void)
+{
+ if (!TEST_ptr(sessionfile = test_get_argument(0)))
+ return 0;
- return testresult?0:1;
+ ADD_ALL_TESTS(test_client_hello, TOTAL_NUM_TESTS);
+ return 1;
}
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