mirror of
https://git.gnunet.org/libmicrohttpd.git
synced 2026-10-03 04:03:18 +03:00
Evgeny Grin (Karlson2k)
b84dc1b220
The test now tries several TLS versions. If no TLS versions are supported, then the test is considered SKIPPED. This way test is forward compatible with future GnuTLS and libcurl versions.
720 lines
18 KiB
C
720 lines
18 KiB
C
/*
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This file is part of libmicrohttpd
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Copyright (C) 2007 Christian Grothoff
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libmicrohttpd is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published
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by the Free Software Foundation; either version 2, or (at your
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option) any later version.
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libmicrohttpd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with libmicrohttpd; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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/**
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* @file tls_test_common.c
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* @brief Common tls test functions
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* @author Sagie Amir
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*/
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#include "tls_test_common.h"
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#include "tls_test_keys.h"
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/**
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* Map @a know_gnutls_tls_ids values to printable names.
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*/
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const char *tls_names[KNOW_TLS_IDS_COUNT] = {
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"Bad value",
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"SSL version 3",
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"TLS version 1.0",
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"TLS version 1.1",
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"TLS version 1.2",
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"TLS version 1.3"
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};
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/**
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* Map @a know_gnutls_tls_ids values to GnuTLS priorities strings.
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*/
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const char *priorities_map[KNOW_TLS_IDS_COUNT] = {
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"NONE",
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"NORMAL:!VERS-ALL:+VERS-SSL3.0",
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"NORMAL:!VERS-ALL:+VERS-TLS1.0",
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"NORMAL:!VERS-ALL:+VERS-TLS1.1",
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"NORMAL:!VERS-ALL:+VERS-TLS1.2",
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"NORMAL:!VERS-ALL:+VERS-TLS1.3"
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};
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/**
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* Map @a know_gnutls_tls_ids values to libcurl @a CURLOPT_SSLVERSION value.
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*/
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const long libcurl_tls_vers_map[KNOW_TLS_IDS_COUNT] = {
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CURL_SSLVERSION_LAST, /* bad value */
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CURL_SSLVERSION_SSLv3,
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#if CURL_AT_LEAST_VERSION (7,34,0)
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CURL_SSLVERSION_TLSv1_0,
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#else /* CURL VER < 7.34.0 */
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CURL_SSLVERSION_TLSv1, /* TLS 1.0 or later */
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#endif /* CURL VER < 7.34.0 */
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#if CURL_AT_LEAST_VERSION (7,34,0)
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CURL_SSLVERSION_TLSv1_1,
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#else /* CURL VER < 7.34.0 */
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CURL_SSLVERSION_LAST, /* bad value, not supported by this libcurl version */
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#endif /* CURL VER < 7.34.0 */
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#if CURL_AT_LEAST_VERSION (7,34,0)
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CURL_SSLVERSION_TLSv1_2,
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#else /* CURL VER < 7.34.0 */
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CURL_SSLVERSION_LAST, /* bad value, not supported by this libcurl version */
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#endif /* CURL VER < 7.34.0 */
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#if CURL_AT_LEAST_VERSION (7,52,0)
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CURL_SSLVERSION_TLSv1_3
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#else /* CURL VER < 7.34.0 */
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CURL_SSLVERSION_LAST /* bad value, not supported by this libcurl version */
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#endif /* CURL VER < 7.34.0 */
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};
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#if CURL_AT_LEAST_VERSION (7,54,0)
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/**
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* Map @a know_gnutls_tls_ids values to libcurl @a CURLOPT_SSLVERSION value
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* for maximum supported TLS version.
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*/
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const long libcurl_tls_max_vers_map[KNOW_TLS_IDS_COUNT] = {
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CURL_SSLVERSION_MAX_DEFAULT, /* bad value */
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CURL_SSLVERSION_MAX_DEFAULT, /* SSLv3 */
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CURL_SSLVERSION_MAX_TLSv1_0,
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CURL_SSLVERSION_MAX_TLSv1_1,
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CURL_SSLVERSION_MAX_TLSv1_2,
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CURL_SSLVERSION_MAX_TLSv1_3
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};
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#endif /* CURL_AT_LEAST_VERSION(7,54,0) */
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/*
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* test HTTPS transfer
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*/
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unsigned int
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test_daemon_get (void *cls,
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const char *cipher_suite,
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int proto_version,
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uint16_t port,
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int ver_peer)
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{
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CURL *c;
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struct CBC cbc;
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CURLcode errornum;
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CURLcode e;
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char url[255];
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size_t len;
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(void) cls; /* Unused. Silence compiler warning. */
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len = strlen (test_data);
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if (NULL == (cbc.buf = malloc (sizeof (char) * len)))
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{
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fprintf (stderr, MHD_E_MEM);
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return 1;
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}
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cbc.size = len;
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cbc.pos = 0;
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/* construct url - this might use doc_path */
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gen_test_uri (url,
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sizeof (url),
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port);
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c = curl_easy_init ();
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#ifdef _DEBUG
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curl_easy_setopt (c, CURLOPT_VERBOSE, 1L);
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#endif
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if ((CURLE_OK != (e = curl_easy_setopt (c, CURLOPT_URL, url))) ||
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(CURLE_OK != (e = curl_easy_setopt (c, CURLOPT_HTTP_VERSION,
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CURL_HTTP_VERSION_1_1))) ||
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(CURLE_OK != (e = curl_easy_setopt (c, CURLOPT_TIMEOUT, 10L))) ||
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(CURLE_OK != (e = curl_easy_setopt (c, CURLOPT_CONNECTTIMEOUT, 10L))) ||
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(CURLE_OK != (e = curl_easy_setopt (c, CURLOPT_WRITEFUNCTION,
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©Buffer))) ||
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(CURLE_OK != (e = curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc))) ||
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(CURLE_OK != (e = curl_easy_setopt (c, CURLOPT_FAILONERROR, 1L))) ||
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(CURLE_OK != (e = curl_easy_setopt (c, CURLOPT_NOSIGNAL, 1L))))
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{
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fprintf (stderr, "curl_easy_setopt failed: `%s'\n",
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curl_easy_strerror (e));
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curl_easy_cleanup (c);
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free (cbc.buf);
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return 1;
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}
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/* TLS options */
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if ((CURLE_OK != (e = curl_easy_setopt (c, CURLOPT_SSLVERSION,
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proto_version))) ||
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((NULL != cipher_suite) &&
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(CURLE_OK != (e = curl_easy_setopt (c, CURLOPT_SSL_CIPHER_LIST,
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cipher_suite)))) ||
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/* perform peer authentication */
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/* TODO merge into send_curl_req */
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(CURLE_OK != (e = curl_easy_setopt (c, CURLOPT_SSL_VERIFYPEER,
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ver_peer))) ||
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(CURLE_OK != (e = curl_easy_setopt (c, CURLOPT_SSL_VERIFYHOST, 0L))))
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{
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fprintf (stderr, "HTTPS curl_easy_setopt failed: `%s'\n",
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curl_easy_strerror (e));
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curl_easy_cleanup (c);
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free (cbc.buf);
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return 1;
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}
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if (ver_peer &&
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(CURLE_OK !=
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(e = curl_easy_setopt (c, CURLOPT_CAINFO, ca_cert_file_name))))
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{
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fprintf (stderr, "HTTPS curl_easy_setopt failed: `%s'\n",
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curl_easy_strerror (e));
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curl_easy_cleanup (c);
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free (cbc.buf);
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return 1;
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}
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if (CURLE_OK != (errornum = curl_easy_perform (c)))
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{
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fprintf (stderr, "curl_easy_perform failed: `%s'\n",
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curl_easy_strerror (errornum));
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curl_easy_cleanup (c);
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free (cbc.buf);
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return 1;
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}
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curl_easy_cleanup (c);
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if (memcmp (cbc.buf, test_data, len) != 0)
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{
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fprintf (stderr, "Error: local data & received data differ.\n");
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free (cbc.buf);
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return 1;
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}
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free (cbc.buf);
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return 0;
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}
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void
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print_test_result (unsigned int test_outcome,
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const char *test_name)
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{
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if (test_outcome != 0)
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fprintf (stderr,
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"running test: %s [fail: %u]\n",
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test_name, test_outcome);
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#if 0
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else
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fprintf (stdout,
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"running test: %s [pass]\n",
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test_name);
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#endif
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}
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size_t
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copyBuffer (void *ptr,
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size_t size,
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size_t nmemb,
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void *ctx)
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{
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struct CBC *cbc = ctx;
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if (cbc->pos + size * nmemb > cbc->size)
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{
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fprintf (stderr, "Server data does not fit buffer.\n");
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return 0; /* overflow */
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}
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memcpy (&cbc->buf[cbc->pos], ptr, size * nmemb);
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cbc->pos += size * nmemb;
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return size * nmemb;
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}
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/**
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* HTTP access handler call back
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*/
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enum MHD_Result
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http_ahc (void *cls,
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struct MHD_Connection *connection,
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const char *url,
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const char *method,
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const char *version,
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const char *upload_data,
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size_t *upload_data_size,
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void **req_cls)
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{
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static int aptr;
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struct MHD_Response *response;
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enum MHD_Result ret;
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(void) cls; (void) url; (void) version; /* Unused. Silent compiler warning. */
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(void) upload_data; (void) upload_data_size; /* Unused. Silent compiler warning. */
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if (0 != strcmp (method, MHD_HTTP_METHOD_GET))
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return MHD_NO; /* unexpected method */
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if (&aptr != *req_cls)
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{
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/* do never respond on first call */
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*req_cls = &aptr;
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return MHD_YES;
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}
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*req_cls = NULL; /* reset when done */
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response = MHD_create_response_from_buffer_static (strlen (test_data),
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test_data);
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ret = MHD_queue_response (connection, MHD_HTTP_OK, response);
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MHD_destroy_response (response);
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return ret;
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}
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/* HTTP access handler call back */
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enum MHD_Result
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http_dummy_ahc (void *cls,
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struct MHD_Connection *connection,
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const char *url,
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const char *method,
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const char *version,
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const char *upload_data,
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size_t *upload_data_size,
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void **req_cls)
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{
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(void) cls;
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(void) connection;
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(void) url;
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(void) method;
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(void) version; /* Unused. Silent compiler warning. */
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(void) upload_data;
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(void) upload_data_size;
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(void) req_cls; /* Unused. Silent compiler warning. */
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return 0;
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}
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/**
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* send a test http request to the daemon
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* @param url
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* @param cbc - may be null
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* @param cipher_suite
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* @param proto_version
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* @return
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*/
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/* TODO have test wrap consider a NULL cbc */
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CURLcode
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send_curl_req (char *url,
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struct CBC *cbc,
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const char *cipher_suite,
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int proto_version)
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{
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CURL *c;
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CURLcode errornum;
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CURLcode e;
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c = curl_easy_init ();
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#ifdef _DEBUG
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curl_easy_setopt (c, CURLOPT_VERBOSE, 1L);
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#endif
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if ((CURLE_OK != (e = curl_easy_setopt (c, CURLOPT_URL, url))) ||
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(CURLE_OK != (e = curl_easy_setopt (c, CURLOPT_HTTP_VERSION,
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CURL_HTTP_VERSION_1_1))) ||
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(CURLE_OK != (e = curl_easy_setopt (c, CURLOPT_TIMEOUT, 60L))) ||
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(CURLE_OK != (e = curl_easy_setopt (c, CURLOPT_CONNECTTIMEOUT, 60L))) ||
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(CURLE_OK != (e = curl_easy_setopt (c, CURLOPT_FAILONERROR, 1L))) ||
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(CURLE_OK != (e = curl_easy_setopt (c, CURLOPT_NOSIGNAL, 1L))))
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{
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fprintf (stderr, "curl_easy_setopt failed: `%s'\n",
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curl_easy_strerror (e));
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curl_easy_cleanup (c);
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return e;
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}
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if (cbc != NULL)
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{
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if ((CURLE_OK != (e = curl_easy_setopt (c, CURLOPT_WRITEFUNCTION,
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©Buffer))) ||
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(CURLE_OK != (e = curl_easy_setopt (c, CURLOPT_WRITEDATA, cbc))))
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{
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fprintf (stderr, "curl_easy_setopt failed: `%s'\n",
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curl_easy_strerror (e));
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curl_easy_cleanup (c);
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return e;
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}
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}
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/* TLS options */
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if ((CURLE_OK != (e = curl_easy_setopt (c, CURLOPT_SSLVERSION,
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proto_version))) ||
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((NULL != cipher_suite) &&
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(CURLE_OK != (e = curl_easy_setopt (c, CURLOPT_SSL_CIPHER_LIST,
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cipher_suite)))) ||
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/* currently skip any peer authentication */
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(CURLE_OK != (e = curl_easy_setopt (c, CURLOPT_SSL_VERIFYPEER, 0L))) ||
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(CURLE_OK != (e = curl_easy_setopt (c, CURLOPT_SSL_VERIFYHOST, 0L))))
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{
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fprintf (stderr, "HTTPS curl_easy_setopt failed: `%s'\n",
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curl_easy_strerror (e));
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curl_easy_cleanup (c);
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return e;
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}
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if (CURLE_OK != (errornum = curl_easy_perform (c)))
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{
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fprintf (stderr, "curl_easy_perform failed: `%s'\n",
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curl_easy_strerror (errornum));
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curl_easy_cleanup (c);
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return errornum;
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}
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curl_easy_cleanup (c);
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return CURLE_OK;
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}
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/**
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* compile test URI
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*
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* @param[out] uri - char buffer into which the url is compiled
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* @param uri_len number of bytes available in @a url
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* @param port port to use for the test
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* @return 1 on error
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*/
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unsigned int
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gen_test_uri (char *uri,
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size_t uri_len,
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uint16_t port)
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{
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int res;
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res = snprintf (uri,
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uri_len,
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"https://127.0.0.1:%u/urlpath",
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(unsigned int) port);
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if (res <= 0)
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return 1;
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if ((size_t) res >= uri_len)
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return 1;
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return 0;
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}
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/**
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* test HTTPS data transfer
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*/
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unsigned int
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test_https_transfer (void *cls,
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uint16_t port,
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const char *cipher_suite,
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int proto_version)
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{
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size_t len;
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unsigned int ret = 0;
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struct CBC cbc;
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char url[255];
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(void) cls; /* Unused. Silent compiler warning. */
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len = strlen (test_data);
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if (NULL == (cbc.buf = malloc (sizeof (char) * len)))
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{
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fprintf (stderr, MHD_E_MEM);
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return 1;
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}
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cbc.size = len;
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cbc.pos = 0;
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if (gen_test_uri (url,
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sizeof (url),
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port))
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{
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ret = 1;
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goto cleanup;
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}
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if (CURLE_OK !=
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send_curl_req (url, &cbc, cipher_suite, proto_version))
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{
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ret = 1;
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goto cleanup;
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}
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/* compare test data & daemon response */
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if ( (len != strlen (test_data)) ||
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(memcmp (cbc.buf,
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test_data,
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len) != 0) )
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{
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fprintf (stderr, "Error: original data & received data differ.\n");
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ret = 1;
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}
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cleanup:
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free (cbc.buf);
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return ret;
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}
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/**
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* setup test case
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*
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* @param d
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* @param daemon_flags
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* @param arg_list
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* @return port number on success or zero on failure
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*/
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static uint16_t
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setup_testcase (struct MHD_Daemon **d, uint16_t port, unsigned int daemon_flags,
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va_list arg_list)
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{
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*d = MHD_start_daemon_va (daemon_flags, port,
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NULL, NULL, &http_ahc, NULL, arg_list);
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if (*d == NULL)
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{
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fprintf (stderr, MHD_E_SERVER_INIT);
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return 0;
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}
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if (0 == port)
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{
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const union MHD_DaemonInfo *dinfo;
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dinfo = MHD_get_daemon_info (*d, MHD_DAEMON_INFO_BIND_PORT);
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if ((NULL == dinfo) || (0 == dinfo->port) )
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{
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MHD_stop_daemon (*d);
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return 0;
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}
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port = dinfo->port;
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}
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return port;
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}
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static void
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teardown_testcase (struct MHD_Daemon *d)
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{
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MHD_stop_daemon (d);
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}
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unsigned int
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setup_session (gnutls_session_t *session,
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gnutls_certificate_credentials_t *xcred)
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{
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if (GNUTLS_E_SUCCESS == gnutls_init (session, GNUTLS_CLIENT))
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{
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if (GNUTLS_E_SUCCESS == gnutls_set_default_priority (*session))
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{
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if (GNUTLS_E_SUCCESS == gnutls_certificate_allocate_credentials (xcred))
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{
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if (GNUTLS_E_SUCCESS == gnutls_credentials_set (*session,
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GNUTLS_CRD_CERTIFICATE,
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|
*xcred))
|
|
{
|
|
return 0;
|
|
}
|
|
gnutls_certificate_free_credentials (*xcred);
|
|
}
|
|
}
|
|
gnutls_deinit (*session);
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
|
|
unsigned int
|
|
teardown_session (gnutls_session_t session,
|
|
gnutls_certificate_credentials_t xcred)
|
|
{
|
|
gnutls_deinit (session);
|
|
gnutls_certificate_free_credentials (xcred);
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* TODO test_wrap: change sig to (setup_func, test, va_list test_arg) */
|
|
unsigned int
|
|
test_wrap (const char *test_name, unsigned int
|
|
(*test_function)(void *cls, uint16_t port, const char *cipher_suite,
|
|
int proto_version), void *cls,
|
|
uint16_t port,
|
|
unsigned int daemon_flags, const char *cipher_suite,
|
|
int proto_version, ...)
|
|
{
|
|
unsigned int ret;
|
|
va_list arg_list;
|
|
struct MHD_Daemon *d;
|
|
(void) cls; /* Unused. Silent compiler warning. */
|
|
|
|
va_start (arg_list, proto_version);
|
|
port = setup_testcase (&d, port, daemon_flags, arg_list);
|
|
if (0 == port)
|
|
{
|
|
va_end (arg_list);
|
|
fprintf (stderr, "Failed to setup testcase %s\n", test_name);
|
|
return 1;
|
|
}
|
|
#if 0
|
|
fprintf (stdout, "running test: %s ", test_name);
|
|
#endif
|
|
ret = test_function (NULL, port, cipher_suite, proto_version);
|
|
#if 0
|
|
if (ret == 0)
|
|
{
|
|
fprintf (stdout, "[pass]\n");
|
|
}
|
|
else
|
|
{
|
|
fprintf (stdout, "[fail]\n");
|
|
}
|
|
#endif
|
|
teardown_testcase (d);
|
|
va_end (arg_list);
|
|
return ret;
|
|
}
|
|
|
|
|
|
static int inited_tls_is_gnutls = 0;
|
|
static int inited_tls_is_openssl = 0;
|
|
|
|
int
|
|
curl_tls_is_gnutls (void)
|
|
{
|
|
const char *tlslib;
|
|
if (inited_tls_is_gnutls)
|
|
return 1;
|
|
if (inited_tls_is_openssl)
|
|
return 0;
|
|
|
|
tlslib = curl_version_info (CURLVERSION_NOW)->ssl_version;
|
|
if (NULL == tlslib)
|
|
return 0;
|
|
if (0 == strncmp (tlslib, "GnuTLS/", 7))
|
|
return 1;
|
|
|
|
/* Multi-backends handled during initialization by setting variable */
|
|
return 0;
|
|
}
|
|
|
|
|
|
int
|
|
curl_tls_is_openssl (void)
|
|
{
|
|
const char *tlslib;
|
|
if (inited_tls_is_gnutls)
|
|
return 0;
|
|
if (inited_tls_is_openssl)
|
|
return 1;
|
|
|
|
tlslib = curl_version_info (CURLVERSION_NOW)->ssl_version;
|
|
if (NULL == tlslib)
|
|
return 0;
|
|
if (0 == strncmp (tlslib, "OpenSSL/", 8))
|
|
return 1;
|
|
|
|
/* Multi-backends handled during initialization by setting variable */
|
|
return 0;
|
|
}
|
|
|
|
|
|
int
|
|
curl_tls_is_nss (void)
|
|
{
|
|
const char *tlslib;
|
|
if (inited_tls_is_gnutls)
|
|
return 0;
|
|
if (inited_tls_is_openssl)
|
|
return 0;
|
|
|
|
tlslib = curl_version_info (CURLVERSION_NOW)->ssl_version;
|
|
if (NULL == tlslib)
|
|
return 0;
|
|
if (0 == strncmp (tlslib, "NSS/", 4))
|
|
return 1;
|
|
|
|
/* Handle multi-backends with selected backend */
|
|
if (NULL != strstr (tlslib," NSS/"))
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int
|
|
curl_tls_is_schannel (void)
|
|
{
|
|
const char *tlslib;
|
|
if (inited_tls_is_gnutls)
|
|
return 0;
|
|
if (inited_tls_is_openssl)
|
|
return 0;
|
|
|
|
tlslib = curl_version_info (CURLVERSION_NOW)->ssl_version;
|
|
if (NULL == tlslib)
|
|
return 0;
|
|
if ((0 == strncmp (tlslib, "Schannel", 8)) || (0 == strncmp (tlslib, "WinSSL",
|
|
6)))
|
|
return 1;
|
|
|
|
/* Handle multi-backends with selected backend */
|
|
if ((NULL != strstr (tlslib," Schannel")) || (NULL != strstr (tlslib,
|
|
" WinSSL")))
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int
|
|
curl_tls_is_sectransport (void)
|
|
{
|
|
const char *tlslib;
|
|
if (inited_tls_is_gnutls)
|
|
return 0;
|
|
if (inited_tls_is_openssl)
|
|
return 0;
|
|
|
|
tlslib = curl_version_info (CURLVERSION_NOW)->ssl_version;
|
|
if (NULL == tlslib)
|
|
return 0;
|
|
if (0 == strncmp (tlslib, "SecureTransport", 15))
|
|
return 1;
|
|
|
|
/* Handle multi-backends with selected backend */
|
|
if (NULL != strstr (tlslib," SecureTransport"))
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int
|
|
testsuite_curl_global_init (void)
|
|
{
|
|
CURLcode res;
|
|
#if LIBCURL_VERSION_NUM >= 0x073800
|
|
if (CURLSSLSET_OK != curl_global_sslset (CURLSSLBACKEND_GNUTLS, NULL, NULL))
|
|
{
|
|
CURLsslset e;
|
|
e = curl_global_sslset (CURLSSLBACKEND_OPENSSL, NULL, NULL);
|
|
if (CURLSSLSET_TOO_LATE == e)
|
|
fprintf (stderr, "WARNING: libcurl was already initialised.\n");
|
|
else if (CURLSSLSET_OK == e)
|
|
inited_tls_is_openssl = 1;
|
|
}
|
|
else
|
|
inited_tls_is_gnutls = 1;
|
|
#endif /* LIBCURL_VERSION_NUM >= 0x07380 */
|
|
res = curl_global_init (CURL_GLOBAL_ALL);
|
|
if (CURLE_OK != res)
|
|
{
|
|
fprintf (stderr, "libcurl initialisation error: %s\n",
|
|
curl_easy_strerror (res));
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|