mirror of
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fdf312709a
SHA1 is now in security level 0. SHA1 is required for DTLSv1.1. Therefore dtlstest needed some adjustments in the event that DTLSv1.2 is disabled. Reviewed-by: Paul Dale <pauli@openssl.org> (Merged from https://github.com/openssl/openssl/pull/15047)
474 lines
15 KiB
C
474 lines
15 KiB
C
/*
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* Copyright 2016-2020 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <string.h>
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#include <openssl/bio.h>
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#include <openssl/crypto.h>
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#include <openssl/ssl.h>
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#include <openssl/err.h>
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#include "helpers/ssltestlib.h"
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#include "testutil.h"
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static char *cert = NULL;
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static char *privkey = NULL;
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static unsigned int timer_cb_count;
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#define NUM_TESTS 2
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#define DUMMY_CERT_STATUS_LEN 12
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static unsigned char certstatus[] = {
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SSL3_RT_HANDSHAKE, /* Content type */
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0xfe, 0xfd, /* Record version */
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0, 1, /* Epoch */
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0, 0, 0, 0, 0, 0x0f, /* Record sequence number */
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0, DTLS1_HM_HEADER_LENGTH + DUMMY_CERT_STATUS_LEN - 2,
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SSL3_MT_CERTIFICATE_STATUS, /* Cert Status handshake message type */
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0, 0, DUMMY_CERT_STATUS_LEN, /* Message len */
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0, 5, /* Message sequence */
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0, 0, 0, /* Fragment offset */
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0, 0, DUMMY_CERT_STATUS_LEN - 2, /* Fragment len */
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0x80, 0x80, 0x80, 0x80, 0x80,
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0x80, 0x80, 0x80, 0x80, 0x80 /* Dummy data */
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};
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#define RECORD_SEQUENCE 10
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static unsigned int timer_cb(SSL *s, unsigned int timer_us)
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{
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++timer_cb_count;
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if (timer_us == 0)
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return 50000;
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else
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return 2 * timer_us;
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}
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static int test_dtls_unprocessed(int testidx)
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{
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SSL_CTX *sctx = NULL, *cctx = NULL;
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SSL *serverssl1 = NULL, *clientssl1 = NULL;
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BIO *c_to_s_fbio, *c_to_s_mempacket;
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int testresult = 0;
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timer_cb_count = 0;
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if (!TEST_true(create_ssl_ctx_pair(NULL, DTLS_server_method(),
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DTLS_client_method(),
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DTLS1_VERSION, 0,
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&sctx, &cctx, cert, privkey)))
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return 0;
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#ifndef OPENSSL_NO_DTLS1_2
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if (!TEST_true(SSL_CTX_set_cipher_list(cctx, "AES128-SHA")))
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goto end;
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#else
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/* Default sigalgs are SHA1 based in <DTLS1.2 which is in security level 0 */
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if (!TEST_true(SSL_CTX_set_cipher_list(sctx, "AES128-SHA:@SECLEVEL=0"))
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|| !TEST_true(SSL_CTX_set_cipher_list(cctx,
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"AES128-SHA:@SECLEVEL=0")))
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goto end;
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#endif
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c_to_s_fbio = BIO_new(bio_f_tls_dump_filter());
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if (!TEST_ptr(c_to_s_fbio))
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goto end;
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/* BIO is freed by create_ssl_connection on error */
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if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl1, &clientssl1,
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NULL, c_to_s_fbio)))
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goto end;
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DTLS_set_timer_cb(clientssl1, timer_cb);
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if (testidx == 1)
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certstatus[RECORD_SEQUENCE] = 0xff;
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/*
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* Inject a dummy record from the next epoch. In test 0, this should never
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* get used because the message sequence number is too big. In test 1 we set
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* the record sequence number to be way off in the future.
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*/
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c_to_s_mempacket = SSL_get_wbio(clientssl1);
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c_to_s_mempacket = BIO_next(c_to_s_mempacket);
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mempacket_test_inject(c_to_s_mempacket, (char *)certstatus,
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sizeof(certstatus), 1, INJECT_PACKET_IGNORE_REC_SEQ);
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/*
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* Create the connection. We use "create_bare_ssl_connection" here so that
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* we can force the connection to not do "SSL_read" once partly connected.
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* We don't want to accidentally read the dummy records we injected because
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* they will fail to decrypt.
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*/
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if (!TEST_true(create_bare_ssl_connection(serverssl1, clientssl1,
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SSL_ERROR_NONE, 0)))
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goto end;
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if (timer_cb_count == 0) {
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printf("timer_callback was not called.\n");
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goto end;
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}
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testresult = 1;
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end:
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SSL_free(serverssl1);
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SSL_free(clientssl1);
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SSL_CTX_free(sctx);
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SSL_CTX_free(cctx);
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return testresult;
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}
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#define CLI_TO_SRV_EPOCH_0_RECS 3
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#define CLI_TO_SRV_EPOCH_1_RECS 1
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#if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_DH)
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# define SRV_TO_CLI_EPOCH_0_RECS 10
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#else
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/*
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* In this case we have no ServerKeyExchange message, because we don't have
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* ECDHE or DHE. When it is present it gets fragmented into 3 records in this
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* test.
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*/
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# define SRV_TO_CLI_EPOCH_0_RECS 9
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#endif
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#define SRV_TO_CLI_EPOCH_1_RECS 1
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#define TOTAL_FULL_HAND_RECORDS \
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(CLI_TO_SRV_EPOCH_0_RECS + CLI_TO_SRV_EPOCH_1_RECS + \
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SRV_TO_CLI_EPOCH_0_RECS + SRV_TO_CLI_EPOCH_1_RECS)
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#define CLI_TO_SRV_RESUME_EPOCH_0_RECS 3
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#define CLI_TO_SRV_RESUME_EPOCH_1_RECS 1
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#define SRV_TO_CLI_RESUME_EPOCH_0_RECS 2
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#define SRV_TO_CLI_RESUME_EPOCH_1_RECS 1
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#define TOTAL_RESUME_HAND_RECORDS \
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(CLI_TO_SRV_RESUME_EPOCH_0_RECS + CLI_TO_SRV_RESUME_EPOCH_1_RECS + \
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SRV_TO_CLI_RESUME_EPOCH_0_RECS + SRV_TO_CLI_RESUME_EPOCH_1_RECS)
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#define TOTAL_RECORDS (TOTAL_FULL_HAND_RECORDS + TOTAL_RESUME_HAND_RECORDS)
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/*
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* We are assuming a ServerKeyExchange message is sent in this test. If we don't
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* have either DH or EC, then it won't be
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*/
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#if !defined(OPENSSL_NO_DH) || !defined(OPENSSL_NO_EC)
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static int test_dtls_drop_records(int idx)
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{
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SSL_CTX *sctx = NULL, *cctx = NULL;
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SSL *serverssl = NULL, *clientssl = NULL;
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BIO *c_to_s_fbio, *mempackbio;
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int testresult = 0;
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int epoch = 0;
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SSL_SESSION *sess = NULL;
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int cli_to_srv_epoch0, cli_to_srv_epoch1, srv_to_cli_epoch0;
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if (!TEST_true(create_ssl_ctx_pair(NULL, DTLS_server_method(),
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DTLS_client_method(),
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DTLS1_VERSION, 0,
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&sctx, &cctx, cert, privkey)))
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return 0;
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#ifdef OPENSSL_NO_DTLS1_2
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/* Default sigalgs are SHA1 based in <DTLS1.2 which is in security level 0 */
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if (!TEST_true(SSL_CTX_set_cipher_list(sctx, "DEFAULT:@SECLEVEL=0"))
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|| !TEST_true(SSL_CTX_set_cipher_list(cctx,
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"DEFAULT:@SECLEVEL=0")))
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goto end;
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#endif
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if (!TEST_true(SSL_CTX_set_dh_auto(sctx, 1)))
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goto end;
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if (idx >= TOTAL_FULL_HAND_RECORDS) {
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/* We're going to do a resumption handshake. Get a session first. */
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if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
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NULL, NULL))
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|| !TEST_true(create_ssl_connection(serverssl, clientssl,
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SSL_ERROR_NONE))
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|| !TEST_ptr(sess = SSL_get1_session(clientssl)))
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goto end;
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SSL_shutdown(clientssl);
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SSL_shutdown(serverssl);
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SSL_free(serverssl);
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SSL_free(clientssl);
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serverssl = clientssl = NULL;
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cli_to_srv_epoch0 = CLI_TO_SRV_RESUME_EPOCH_0_RECS;
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cli_to_srv_epoch1 = CLI_TO_SRV_RESUME_EPOCH_1_RECS;
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srv_to_cli_epoch0 = SRV_TO_CLI_RESUME_EPOCH_0_RECS;
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idx -= TOTAL_FULL_HAND_RECORDS;
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} else {
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cli_to_srv_epoch0 = CLI_TO_SRV_EPOCH_0_RECS;
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cli_to_srv_epoch1 = CLI_TO_SRV_EPOCH_1_RECS;
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srv_to_cli_epoch0 = SRV_TO_CLI_EPOCH_0_RECS;
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}
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c_to_s_fbio = BIO_new(bio_f_tls_dump_filter());
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if (!TEST_ptr(c_to_s_fbio))
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goto end;
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/* BIO is freed by create_ssl_connection on error */
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if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
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NULL, c_to_s_fbio)))
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goto end;
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if (sess != NULL) {
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if (!TEST_true(SSL_set_session(clientssl, sess)))
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goto end;
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}
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DTLS_set_timer_cb(clientssl, timer_cb);
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DTLS_set_timer_cb(serverssl, timer_cb);
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/* Work out which record to drop based on the test number */
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if (idx >= cli_to_srv_epoch0 + cli_to_srv_epoch1) {
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mempackbio = SSL_get_wbio(serverssl);
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idx -= cli_to_srv_epoch0 + cli_to_srv_epoch1;
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if (idx >= srv_to_cli_epoch0) {
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epoch = 1;
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idx -= srv_to_cli_epoch0;
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}
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} else {
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mempackbio = SSL_get_wbio(clientssl);
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if (idx >= cli_to_srv_epoch0) {
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epoch = 1;
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idx -= cli_to_srv_epoch0;
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}
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mempackbio = BIO_next(mempackbio);
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}
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BIO_ctrl(mempackbio, MEMPACKET_CTRL_SET_DROP_EPOCH, epoch, NULL);
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BIO_ctrl(mempackbio, MEMPACKET_CTRL_SET_DROP_REC, idx, NULL);
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if (!TEST_true(create_ssl_connection(serverssl, clientssl, SSL_ERROR_NONE)))
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goto end;
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if (sess != NULL && !TEST_true(SSL_session_reused(clientssl)))
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goto end;
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/* If the test did what we planned then it should have dropped a record */
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if (!TEST_int_eq((int)BIO_ctrl(mempackbio, MEMPACKET_CTRL_GET_DROP_REC, 0,
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NULL), -1))
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goto end;
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testresult = 1;
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end:
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SSL_SESSION_free(sess);
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SSL_free(serverssl);
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SSL_free(clientssl);
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SSL_CTX_free(sctx);
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SSL_CTX_free(cctx);
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return testresult;
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}
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#endif /* !defined(OPENSSL_NO_DH) || !defined(OPENSSL_NO_EC) */
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static const char dummy_cookie[] = "0123456";
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static int generate_cookie_cb(SSL *ssl, unsigned char *cookie,
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unsigned int *cookie_len)
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{
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memcpy(cookie, dummy_cookie, sizeof(dummy_cookie));
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*cookie_len = sizeof(dummy_cookie);
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return 1;
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}
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static int verify_cookie_cb(SSL *ssl, const unsigned char *cookie,
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unsigned int cookie_len)
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{
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return TEST_mem_eq(cookie, cookie_len, dummy_cookie, sizeof(dummy_cookie));
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}
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static int test_cookie(void)
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{
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SSL_CTX *sctx = NULL, *cctx = NULL;
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SSL *serverssl = NULL, *clientssl = NULL;
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int testresult = 0;
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if (!TEST_true(create_ssl_ctx_pair(NULL, DTLS_server_method(),
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DTLS_client_method(),
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DTLS1_VERSION, 0,
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&sctx, &cctx, cert, privkey)))
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return 0;
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SSL_CTX_set_options(sctx, SSL_OP_COOKIE_EXCHANGE);
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SSL_CTX_set_cookie_generate_cb(sctx, generate_cookie_cb);
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SSL_CTX_set_cookie_verify_cb(sctx, verify_cookie_cb);
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#ifdef OPENSSL_NO_DTLS1_2
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/* Default sigalgs are SHA1 based in <DTLS1.2 which is in security level 0 */
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if (!TEST_true(SSL_CTX_set_cipher_list(sctx, "DEFAULT:@SECLEVEL=0"))
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|| !TEST_true(SSL_CTX_set_cipher_list(cctx,
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"DEFAULT:@SECLEVEL=0")))
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goto end;
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#endif
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if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
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NULL, NULL))
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|| !TEST_true(create_ssl_connection(serverssl, clientssl,
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SSL_ERROR_NONE)))
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goto end;
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testresult = 1;
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end:
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SSL_free(serverssl);
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SSL_free(clientssl);
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SSL_CTX_free(sctx);
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SSL_CTX_free(cctx);
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return testresult;
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}
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static int test_dtls_duplicate_records(void)
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{
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SSL_CTX *sctx = NULL, *cctx = NULL;
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SSL *serverssl = NULL, *clientssl = NULL;
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int testresult = 0;
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if (!TEST_true(create_ssl_ctx_pair(NULL, DTLS_server_method(),
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DTLS_client_method(),
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DTLS1_VERSION, 0,
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&sctx, &cctx, cert, privkey)))
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return 0;
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#ifdef OPENSSL_NO_DTLS1_2
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/* Default sigalgs are SHA1 based in <DTLS1.2 which is in security level 0 */
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if (!TEST_true(SSL_CTX_set_cipher_list(sctx, "DEFAULT:@SECLEVEL=0"))
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|| !TEST_true(SSL_CTX_set_cipher_list(cctx,
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"DEFAULT:@SECLEVEL=0")))
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goto end;
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#endif
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if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
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NULL, NULL)))
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goto end;
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DTLS_set_timer_cb(clientssl, timer_cb);
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DTLS_set_timer_cb(serverssl, timer_cb);
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BIO_ctrl(SSL_get_wbio(clientssl), MEMPACKET_CTRL_SET_DUPLICATE_REC, 1, NULL);
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BIO_ctrl(SSL_get_wbio(serverssl), MEMPACKET_CTRL_SET_DUPLICATE_REC, 1, NULL);
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if (!TEST_true(create_ssl_connection(serverssl, clientssl, SSL_ERROR_NONE)))
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goto end;
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testresult = 1;
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end:
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SSL_free(serverssl);
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SSL_free(clientssl);
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SSL_CTX_free(sctx);
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SSL_CTX_free(cctx);
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return testresult;
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}
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/*
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* Test just sending a Finished message as the first message. Should fail due
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* to an unexpected message.
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*/
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static int test_just_finished(void)
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{
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int testresult = 0, ret;
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SSL_CTX *sctx = NULL;
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SSL *serverssl = NULL;
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BIO *rbio = NULL, *wbio = NULL, *sbio = NULL;
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unsigned char buf[] = {
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/* Record header */
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SSL3_RT_HANDSHAKE, /* content type */
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(DTLS1_2_VERSION >> 8) & 0xff, /* protocol version hi byte */
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DTLS1_2_VERSION & 0xff, /* protocol version lo byte */
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0, 0, /* epoch */
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0, 0, 0, 0, 0, 0, /* record sequence */
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0, DTLS1_HM_HEADER_LENGTH + SHA_DIGEST_LENGTH, /* record length */
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/* Message header */
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SSL3_MT_FINISHED, /* message type */
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0, 0, SHA_DIGEST_LENGTH, /* message length */
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0, 0, /* message sequence */
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0, 0, 0, /* fragment offset */
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0, 0, SHA_DIGEST_LENGTH, /* fragment length */
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/* Message body */
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
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};
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if (!TEST_true(create_ssl_ctx_pair(NULL, DTLS_server_method(),
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NULL, 0, 0,
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&sctx, NULL, cert, privkey)))
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return 0;
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serverssl = SSL_new(sctx);
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rbio = BIO_new(BIO_s_mem());
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wbio = BIO_new(BIO_s_mem());
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if (!TEST_ptr(serverssl) || !TEST_ptr(rbio) || !TEST_ptr(wbio))
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goto end;
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sbio = rbio;
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SSL_set0_rbio(serverssl, rbio);
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SSL_set0_wbio(serverssl, wbio);
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rbio = wbio = NULL;
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DTLS_set_timer_cb(serverssl, timer_cb);
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if (!TEST_int_eq(BIO_write(sbio, buf, sizeof(buf)), sizeof(buf)))
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goto end;
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/* We expect the attempt to process the message to fail */
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if (!TEST_int_le(ret = SSL_accept(serverssl), 0))
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goto end;
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/* Check that we got the error we were expecting */
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if (!TEST_int_eq(SSL_get_error(serverssl, ret), SSL_ERROR_SSL))
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goto end;
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if (!TEST_int_eq(ERR_GET_REASON(ERR_get_error()), SSL_R_UNEXPECTED_MESSAGE))
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goto end;
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testresult = 1;
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end:
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BIO_free(rbio);
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BIO_free(wbio);
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SSL_free(serverssl);
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SSL_CTX_free(sctx);
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return testresult;
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}
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OPT_TEST_DECLARE_USAGE("certfile privkeyfile\n")
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int setup_tests(void)
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{
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if (!test_skip_common_options()) {
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TEST_error("Error parsing test options\n");
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return 0;
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}
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if (!TEST_ptr(cert = test_get_argument(0))
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|| !TEST_ptr(privkey = test_get_argument(1)))
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return 0;
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|
ADD_ALL_TESTS(test_dtls_unprocessed, NUM_TESTS);
|
|
#if !defined(OPENSSL_NO_DH) || !defined(OPENSSL_NO_EC)
|
|
ADD_ALL_TESTS(test_dtls_drop_records, TOTAL_RECORDS);
|
|
#endif
|
|
ADD_TEST(test_cookie);
|
|
ADD_TEST(test_dtls_duplicate_records);
|
|
ADD_TEST(test_just_finished);
|
|
|
|
return 1;
|
|
}
|
|
|
|
void cleanup_tests(void)
|
|
{
|
|
bio_f_tls_dump_filter_free();
|
|
bio_s_mempacket_test_free();
|
|
}
|