1601 lines
53 KiB
C
1601 lines
53 KiB
C
/*
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* SSL client with certificate authentication
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*
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* Copyright (C) 2006-2013, ARM Limited, All Rights Reserved
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*
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* This file is part of mbed TLS (https://tls.mbed.org)
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*
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* This program 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 by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#if !defined(MBEDTLS_CONFIG_FILE)
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#include "mbedtls/config.h"
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#else
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#include MBEDTLS_CONFIG_FILE
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#endif
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#if defined(MBEDTLS_PLATFORM_C)
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#include "mbedtls/platform.h"
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#else
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#include <stdio.h>
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#define mbedtls_printf printf
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#define mbedtls_fprintf fprintf
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#define mbedtls_printf printf
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#define mbedtls_snprintf snprintf
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#endif
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#if defined(MBEDTLS_ENTROPY_C) && defined(MBEDTLS_FS_IO) && \
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defined(MBEDTLS_SSL_TLS_C) && defined(MBEDTLS_SSL_CLI_C) && \
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defined(MBEDTLS_NET_C) && defined(MBEDTLS_CTR_DRBG_C)
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#include "mbedtls/net.h"
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#include "mbedtls/ssl.h"
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#include "mbedtls/entropy.h"
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#include "mbedtls/ctr_drbg.h"
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#include "mbedtls/certs.h"
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#include "mbedtls/x509.h"
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#include "mbedtls/error.h"
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#include "mbedtls/debug.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#endif
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#if defined(MBEDTLS_TIMING_C)
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#include "mbedtls/timing.h"
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#endif
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#if defined(_MSC_VER) && !defined(EFIX64) && !defined(EFI32)
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#if !defined snprintf
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#define snprintf _snprintf
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#endif
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#endif
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#define DFL_SERVER_NAME "localhost"
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#define DFL_SERVER_ADDR NULL
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#define DFL_SERVER_PORT 4433
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#define DFL_REQUEST_PAGE "/"
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#define DFL_REQUEST_SIZE -1
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#define DFL_DEBUG_LEVEL 0
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#define DFL_NBIO 0
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#define DFL_READ_TIMEOUT 0
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#define DFL_MAX_RESEND 0
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#define DFL_CA_FILE ""
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#define DFL_CA_PATH ""
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#define DFL_CRT_FILE ""
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#define DFL_KEY_FILE ""
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#define DFL_PSK ""
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#define DFL_PSK_IDENTITY "Client_identity"
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#define DFL_FORCE_CIPHER 0
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#define DFL_RENEGOTIATION MBEDTLS_SSL_RENEGOTIATION_DISABLED
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#define DFL_ALLOW_LEGACY -2
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#define DFL_RENEGOTIATE 0
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#define DFL_EXCHANGES 1
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#define DFL_MIN_VERSION -1
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#define DFL_MAX_VERSION -1
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#define DFL_ARC4 -1
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#define DFL_AUTH_MODE -1
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#define DFL_MFL_CODE MBEDTLS_SSL_MAX_FRAG_LEN_NONE
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#define DFL_TRUNC_HMAC -1
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#define DFL_RECSPLIT -1
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#define DFL_RECONNECT 0
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#define DFL_RECO_DELAY 0
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#define DFL_TICKETS MBEDTLS_SSL_SESSION_TICKETS_ENABLED
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#define DFL_ALPN_STRING NULL
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#define DFL_TRANSPORT MBEDTLS_SSL_TRANSPORT_STREAM
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#define DFL_HS_TO_MIN 0
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#define DFL_HS_TO_MAX 0
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#define DFL_FALLBACK -1
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#define DFL_EXTENDED_MS -1
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#define DFL_ETM -1
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#define GET_REQUEST "GET %s HTTP/1.0\r\nExtra-header: "
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#define GET_REQUEST_END "\r\n\r\n"
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#if defined(MBEDTLS_X509_CRT_PARSE_C)
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#if defined(MBEDTLS_FS_IO)
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#define USAGE_IO \
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" ca_file=%%s The single file containing the top-level CA(s) you fully trust\n" \
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" default: \"\" (pre-loaded)\n" \
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" ca_path=%%s The path containing the top-level CA(s) you fully trust\n" \
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" default: \"\" (pre-loaded) (overrides ca_file)\n" \
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" crt_file=%%s Your own cert and chain (in bottom to top order, top may be omitted)\n" \
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" default: \"\" (pre-loaded)\n" \
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" key_file=%%s default: \"\" (pre-loaded)\n"
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#else
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#define USAGE_IO \
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" No file operations available (MBEDTLS_FS_IO not defined)\n"
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#endif /* MBEDTLS_FS_IO */
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#else
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#define USAGE_IO ""
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#endif /* MBEDTLS_X509_CRT_PARSE_C */
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#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
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#define USAGE_PSK \
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" psk=%%s default: \"\" (in hex, without 0x)\n" \
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" psk_identity=%%s default: \"Client_identity\"\n"
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#else
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#define USAGE_PSK ""
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#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */
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#if defined(MBEDTLS_SSL_SESSION_TICKETS)
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#define USAGE_TICKETS \
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" tickets=%%d default: 1 (enabled)\n"
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#else
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#define USAGE_TICKETS ""
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#endif /* MBEDTLS_SSL_SESSION_TICKETS */
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#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
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#define USAGE_TRUNC_HMAC \
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" trunc_hmac=%%d default: library default\n"
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#else
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#define USAGE_TRUNC_HMAC ""
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#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */
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#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
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#define USAGE_MAX_FRAG_LEN \
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" max_frag_len=%%d default: 16384 (tls default)\n" \
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" options: 512, 1024, 2048, 4096\n"
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#else
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#define USAGE_MAX_FRAG_LEN ""
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#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
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#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING)
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#define USAGE_RECSPLIT \
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" recplit=%%d default: (library default)\n"
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#else
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#define USAGE_RECSPLIT
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#endif
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#if defined(MBEDTLS_TIMING_C)
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#define USAGE_TIME \
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" reco_delay=%%d default: 0 seconds\n"
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#else
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#define USAGE_TIME ""
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#endif /* MBEDTLS_TIMING_C */
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#if defined(MBEDTLS_SSL_ALPN)
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#define USAGE_ALPN \
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" alpn=%%s default: \"\" (disabled)\n" \
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" example: spdy/1,http/1.1\n"
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#else
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#define USAGE_ALPN ""
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#endif /* MBEDTLS_SSL_ALPN */
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#if defined(MBEDTLS_SSL_PROTO_DTLS)
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#define USAGE_DTLS \
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" dtls=%%d default: 0 (TLS)\n" \
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" hs_timeout=%%d-%%d default: (library default: 1000-60000)\n" \
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" range of DTLS handshake timeouts in millisecs\n"
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#else
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#define USAGE_DTLS ""
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#endif
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#if defined(MBEDTLS_SSL_FALLBACK_SCSV)
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#define USAGE_FALLBACK \
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" fallback=0/1 default: (library default: off)\n"
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#else
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#define USAGE_FALLBACK ""
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#endif
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#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
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#define USAGE_EMS \
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" extended_ms=0/1 default: (library default: on)\n"
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#else
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#define USAGE_EMS ""
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#endif
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#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
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#define USAGE_ETM \
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" etm=0/1 default: (library default: on)\n"
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#else
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#define USAGE_ETM ""
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#endif
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#if defined(MBEDTLS_SSL_RENEGOTIATION)
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#define USAGE_RENEGO \
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" renegotiation=%%d default: 0 (disabled)\n" \
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" renegotiate=%%d default: 0 (disabled)\n"
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#else
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#define USAGE_RENEGO ""
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#endif
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#define USAGE \
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"\n usage: ssl_client2 param=<>...\n" \
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"\n acceptable parameters:\n" \
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" server_name=%%s default: localhost\n" \
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" server_addr=%%s default: given by name\n" \
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" server_port=%%d default: 4433\n" \
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" request_page=%%s default: \".\"\n" \
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" request_size=%%d default: about 34 (basic request)\n" \
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" (minimum: 0, max: 16384)\n" \
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" debug_level=%%d default: 0 (disabled)\n" \
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" nbio=%%d default: 0 (blocking I/O)\n" \
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" options: 1 (non-blocking), 2 (added delays)\n" \
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" read_timeout=%%d default: 0 (no timeout)\n" \
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" max_resend=%%d default: 0 (no resend on timeout)\n" \
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"\n" \
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USAGE_DTLS \
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"\n" \
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" auth_mode=%%s default: (library default: none)\n" \
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" options: none, optional, required\n" \
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USAGE_IO \
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"\n" \
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USAGE_PSK \
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"\n" \
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" allow_legacy=%%d default: (library default: no)\n" \
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USAGE_RENEGO \
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" exchanges=%%d default: 1\n" \
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" reconnect=%%d default: 0 (disabled)\n" \
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USAGE_TIME \
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USAGE_TICKETS \
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USAGE_MAX_FRAG_LEN \
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USAGE_TRUNC_HMAC \
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USAGE_ALPN \
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USAGE_FALLBACK \
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USAGE_EMS \
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USAGE_ETM \
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USAGE_RECSPLIT \
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"\n" \
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" arc4=%%d default: (library default: 0)\n" \
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" min_version=%%s default: (library default: tls1)\n" \
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" max_version=%%s default: (library default: tls1_2)\n" \
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" force_version=%%s default: \"\" (none)\n" \
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" options: ssl3, tls1, tls1_1, tls1_2, dtls1, dtls1_2\n" \
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"\n" \
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" force_ciphersuite=<name> default: all enabled\n"\
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" acceptable ciphersuite names:\n"
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#if !defined(MBEDTLS_ENTROPY_C) || !defined(MBEDTLS_FS_IO) || \
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!defined(MBEDTLS_SSL_TLS_C) || !defined(MBEDTLS_SSL_CLI_C) || \
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!defined(MBEDTLS_NET_C) || !defined(MBEDTLS_CTR_DRBG_C)
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int main( void )
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{
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mbedtls_printf("MBEDTLS_ENTROPY_C and/or "
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"MBEDTLS_SSL_TLS_C and/or MBEDTLS_SSL_CLI_C and/or "
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"MBEDTLS_NET_C and/or MBEDTLS_CTR_DRBG_C not defined.\n");
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return( 0 );
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}
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#else
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/*
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* global options
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*/
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struct options
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{
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const char *server_name; /* hostname of the server (client only) */
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const char *server_addr; /* address of the server (client only) */
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int server_port; /* port on which the ssl service runs */
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int debug_level; /* level of debugging */
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int nbio; /* should I/O be blocking? */
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uint32_t read_timeout; /* timeout on mbedtls_ssl_read() in milliseconds */
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int max_resend; /* DTLS times to resend on read timeout */
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const char *request_page; /* page on server to request */
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int request_size; /* pad request with header to requested size */
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const char *ca_file; /* the file with the CA certificate(s) */
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const char *ca_path; /* the path with the CA certificate(s) reside */
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const char *crt_file; /* the file with the client certificate */
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const char *key_file; /* the file with the client key */
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const char *psk; /* the pre-shared key */
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const char *psk_identity; /* the pre-shared key identity */
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int force_ciphersuite[2]; /* protocol/ciphersuite to use, or all */
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int renegotiation; /* enable / disable renegotiation */
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int allow_legacy; /* allow legacy renegotiation */
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int renegotiate; /* attempt renegotiation? */
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int renego_delay; /* delay before enforcing renegotiation */
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int exchanges; /* number of data exchanges */
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int min_version; /* minimum protocol version accepted */
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int max_version; /* maximum protocol version accepted */
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int arc4; /* flag for arc4 suites support */
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int auth_mode; /* verify mode for connection */
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unsigned char mfl_code; /* code for maximum fragment length */
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int trunc_hmac; /* negotiate truncated hmac or not */
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int recsplit; /* enable record splitting? */
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int reconnect; /* attempt to resume session */
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int reco_delay; /* delay in seconds before resuming session */
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int tickets; /* enable / disable session tickets */
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const char *alpn_string; /* ALPN supported protocols */
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int transport; /* TLS or DTLS? */
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uint32_t hs_to_min; /* Initial value of DTLS handshake timer */
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uint32_t hs_to_max; /* Max value of DTLS handshake timer */
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int fallback; /* is this a fallback connection? */
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int extended_ms; /* negotiate extended master secret? */
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int etm; /* negotiate encrypt then mac? */
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} opt;
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static void my_debug( void *ctx, int level, const char *str )
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{
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((void) level);
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mbedtls_fprintf( (FILE *) ctx, "%s", str );
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fflush( (FILE *) ctx );
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}
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/*
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* Test recv/send functions that make sure each try returns
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* WANT_READ/WANT_WRITE at least once before sucesseding
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*/
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static int my_recv( void *ctx, unsigned char *buf, size_t len )
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{
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static int first_try = 1;
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int ret;
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if( first_try )
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{
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first_try = 0;
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return( MBEDTLS_ERR_SSL_WANT_READ );
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}
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ret = mbedtls_net_recv( ctx, buf, len );
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if( ret != MBEDTLS_ERR_SSL_WANT_READ )
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first_try = 1; /* Next call will be a new operation */
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return( ret );
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}
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static int my_send( void *ctx, const unsigned char *buf, size_t len )
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{
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static int first_try = 1;
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int ret;
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if( first_try )
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{
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first_try = 0;
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return( MBEDTLS_ERR_SSL_WANT_WRITE );
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}
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ret = mbedtls_net_send( ctx, buf, len );
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if( ret != MBEDTLS_ERR_SSL_WANT_WRITE )
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first_try = 1; /* Next call will be a new operation */
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return( ret );
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}
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#if defined(MBEDTLS_X509_CRT_PARSE_C)
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/*
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* Enabled if debug_level > 1 in code below
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*/
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static int my_verify( void *data, mbedtls_x509_crt *crt, int depth, int *flags )
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{
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char buf[1024];
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((void) data);
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mbedtls_printf( "\nVerify requested for (Depth %d):\n", depth );
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mbedtls_x509_crt_info( buf, sizeof( buf ) - 1, "", crt );
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mbedtls_printf( "%s", buf );
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if ( ( *flags ) == 0 )
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mbedtls_printf( " This certificate has no flags\n" );
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else
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{
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mbedtls_x509_crt_verify_info( buf, sizeof( buf ), " ! ", *flags );
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mbedtls_printf( "%s\n", buf );
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}
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return( 0 );
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}
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#endif /* MBEDTLS_X509_CRT_PARSE_C */
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int main( int argc, char *argv[] )
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{
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int ret = 0, len, tail_len, server_fd, i, written, frags, retry_left;
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unsigned char buf[MBEDTLS_SSL_MAX_CONTENT_LEN + 1];
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#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
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unsigned char psk[MBEDTLS_PSK_MAX_LEN];
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size_t psk_len = 0;
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#endif
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#if defined(MBEDTLS_SSL_ALPN)
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const char *alpn_list[10];
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#endif
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const char *pers = "ssl_client2";
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mbedtls_entropy_context entropy;
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mbedtls_ctr_drbg_context ctr_drbg;
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mbedtls_ssl_context ssl;
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mbedtls_ssl_config conf;
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mbedtls_ssl_session saved_session;
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#if defined(MBEDTLS_X509_CRT_PARSE_C)
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mbedtls_x509_crt cacert;
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mbedtls_x509_crt clicert;
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mbedtls_pk_context pkey;
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#endif
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char *p, *q;
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const int *list;
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/*
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* Make sure memory references are valid.
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*/
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server_fd = 0;
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mbedtls_ssl_init( &ssl );
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mbedtls_ssl_config_init( &conf );
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memset( &saved_session, 0, sizeof( mbedtls_ssl_session ) );
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mbedtls_ctr_drbg_init( &ctr_drbg );
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#if defined(MBEDTLS_X509_CRT_PARSE_C)
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mbedtls_x509_crt_init( &cacert );
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mbedtls_x509_crt_init( &clicert );
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mbedtls_pk_init( &pkey );
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#endif
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#if defined(MBEDTLS_SSL_ALPN)
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memset( (void * ) alpn_list, 0, sizeof( alpn_list ) );
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#endif
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|
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if( argc == 0 )
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{
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usage:
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if( ret == 0 )
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ret = 1;
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|
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mbedtls_printf( USAGE );
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list = mbedtls_ssl_list_ciphersuites();
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while( *list )
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{
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mbedtls_printf(" %-42s", mbedtls_ssl_get_ciphersuite_name( *list ) );
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list++;
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if( !*list )
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break;
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mbedtls_printf(" %s\n", mbedtls_ssl_get_ciphersuite_name( *list ) );
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list++;
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}
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mbedtls_printf("\n");
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goto exit;
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}
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|
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opt.server_name = DFL_SERVER_NAME;
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opt.server_addr = DFL_SERVER_ADDR;
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opt.server_port = DFL_SERVER_PORT;
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opt.debug_level = DFL_DEBUG_LEVEL;
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opt.nbio = DFL_NBIO;
|
|
opt.read_timeout = DFL_READ_TIMEOUT;
|
|
opt.max_resend = DFL_MAX_RESEND;
|
|
opt.request_page = DFL_REQUEST_PAGE;
|
|
opt.request_size = DFL_REQUEST_SIZE;
|
|
opt.ca_file = DFL_CA_FILE;
|
|
opt.ca_path = DFL_CA_PATH;
|
|
opt.crt_file = DFL_CRT_FILE;
|
|
opt.key_file = DFL_KEY_FILE;
|
|
opt.psk = DFL_PSK;
|
|
opt.psk_identity = DFL_PSK_IDENTITY;
|
|
opt.force_ciphersuite[0]= DFL_FORCE_CIPHER;
|
|
opt.renegotiation = DFL_RENEGOTIATION;
|
|
opt.allow_legacy = DFL_ALLOW_LEGACY;
|
|
opt.renegotiate = DFL_RENEGOTIATE;
|
|
opt.exchanges = DFL_EXCHANGES;
|
|
opt.min_version = DFL_MIN_VERSION;
|
|
opt.max_version = DFL_MAX_VERSION;
|
|
opt.arc4 = DFL_ARC4;
|
|
opt.auth_mode = DFL_AUTH_MODE;
|
|
opt.mfl_code = DFL_MFL_CODE;
|
|
opt.trunc_hmac = DFL_TRUNC_HMAC;
|
|
opt.recsplit = DFL_RECSPLIT;
|
|
opt.reconnect = DFL_RECONNECT;
|
|
opt.reco_delay = DFL_RECO_DELAY;
|
|
opt.tickets = DFL_TICKETS;
|
|
opt.alpn_string = DFL_ALPN_STRING;
|
|
opt.transport = DFL_TRANSPORT;
|
|
opt.hs_to_min = DFL_HS_TO_MIN;
|
|
opt.hs_to_max = DFL_HS_TO_MAX;
|
|
opt.fallback = DFL_FALLBACK;
|
|
opt.extended_ms = DFL_EXTENDED_MS;
|
|
opt.etm = DFL_ETM;
|
|
|
|
for( i = 1; i < argc; i++ )
|
|
{
|
|
p = argv[i];
|
|
if( ( q = strchr( p, '=' ) ) == NULL )
|
|
goto usage;
|
|
*q++ = '\0';
|
|
|
|
if( strcmp( p, "server_name" ) == 0 )
|
|
opt.server_name = q;
|
|
else if( strcmp( p, "server_addr" ) == 0 )
|
|
opt.server_addr = q;
|
|
else if( strcmp( p, "server_port" ) == 0 )
|
|
{
|
|
opt.server_port = atoi( q );
|
|
if( opt.server_port < 1 || opt.server_port > 65535 )
|
|
goto usage;
|
|
}
|
|
else if( strcmp( p, "dtls" ) == 0 )
|
|
{
|
|
int t = atoi( q );
|
|
if( t == 0 )
|
|
opt.transport = MBEDTLS_SSL_TRANSPORT_STREAM;
|
|
else if( t == 1 )
|
|
opt.transport = MBEDTLS_SSL_TRANSPORT_DATAGRAM;
|
|
else
|
|
goto usage;
|
|
}
|
|
else if( strcmp( p, "debug_level" ) == 0 )
|
|
{
|
|
opt.debug_level = atoi( q );
|
|
if( opt.debug_level < 0 || opt.debug_level > 65535 )
|
|
goto usage;
|
|
}
|
|
else if( strcmp( p, "nbio" ) == 0 )
|
|
{
|
|
opt.nbio = atoi( q );
|
|
if( opt.nbio < 0 || opt.nbio > 2 )
|
|
goto usage;
|
|
}
|
|
else if( strcmp( p, "read_timeout" ) == 0 )
|
|
opt.read_timeout = atoi( q );
|
|
else if( strcmp( p, "max_resend" ) == 0 )
|
|
{
|
|
opt.max_resend = atoi( q );
|
|
if( opt.max_resend < 0 )
|
|
goto usage;
|
|
}
|
|
else if( strcmp( p, "request_page" ) == 0 )
|
|
opt.request_page = q;
|
|
else if( strcmp( p, "request_size" ) == 0 )
|
|
{
|
|
opt.request_size = atoi( q );
|
|
if( opt.request_size < 0 || opt.request_size > MBEDTLS_SSL_MAX_CONTENT_LEN )
|
|
goto usage;
|
|
}
|
|
else if( strcmp( p, "ca_file" ) == 0 )
|
|
opt.ca_file = q;
|
|
else if( strcmp( p, "ca_path" ) == 0 )
|
|
opt.ca_path = q;
|
|
else if( strcmp( p, "crt_file" ) == 0 )
|
|
opt.crt_file = q;
|
|
else if( strcmp( p, "key_file" ) == 0 )
|
|
opt.key_file = q;
|
|
else if( strcmp( p, "psk" ) == 0 )
|
|
opt.psk = q;
|
|
else if( strcmp( p, "psk_identity" ) == 0 )
|
|
opt.psk_identity = q;
|
|
else if( strcmp( p, "force_ciphersuite" ) == 0 )
|
|
{
|
|
opt.force_ciphersuite[0] = mbedtls_ssl_get_ciphersuite_id( q );
|
|
|
|
if( opt.force_ciphersuite[0] == 0 )
|
|
{
|
|
ret = 2;
|
|
goto usage;
|
|
}
|
|
opt.force_ciphersuite[1] = 0;
|
|
}
|
|
else if( strcmp( p, "renegotiation" ) == 0 )
|
|
{
|
|
opt.renegotiation = (atoi( q )) ? MBEDTLS_SSL_RENEGOTIATION_ENABLED :
|
|
MBEDTLS_SSL_RENEGOTIATION_DISABLED;
|
|
}
|
|
else if( strcmp( p, "allow_legacy" ) == 0 )
|
|
{
|
|
switch( atoi( q ) )
|
|
{
|
|
case -1: opt.allow_legacy = MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE; break;
|
|
case 0: opt.allow_legacy = MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION; break;
|
|
case 1: opt.allow_legacy = MBEDTLS_SSL_LEGACY_ALLOW_RENEGOTIATION; break;
|
|
default: goto usage;
|
|
}
|
|
}
|
|
else if( strcmp( p, "renegotiate" ) == 0 )
|
|
{
|
|
opt.renegotiate = atoi( q );
|
|
if( opt.renegotiate < 0 || opt.renegotiate > 1 )
|
|
goto usage;
|
|
}
|
|
else if( strcmp( p, "exchanges" ) == 0 )
|
|
{
|
|
opt.exchanges = atoi( q );
|
|
if( opt.exchanges < 1 )
|
|
goto usage;
|
|
}
|
|
else if( strcmp( p, "reconnect" ) == 0 )
|
|
{
|
|
opt.reconnect = atoi( q );
|
|
if( opt.reconnect < 0 || opt.reconnect > 2 )
|
|
goto usage;
|
|
}
|
|
else if( strcmp( p, "reco_delay" ) == 0 )
|
|
{
|
|
opt.reco_delay = atoi( q );
|
|
if( opt.reco_delay < 0 )
|
|
goto usage;
|
|
}
|
|
else if( strcmp( p, "tickets" ) == 0 )
|
|
{
|
|
opt.tickets = atoi( q );
|
|
if( opt.tickets < 0 || opt.tickets > 2 )
|
|
goto usage;
|
|
}
|
|
else if( strcmp( p, "alpn" ) == 0 )
|
|
{
|
|
opt.alpn_string = q;
|
|
}
|
|
else if( strcmp( p, "fallback" ) == 0 )
|
|
{
|
|
switch( atoi( q ) )
|
|
{
|
|
case 0: opt.fallback = MBEDTLS_SSL_IS_NOT_FALLBACK; break;
|
|
case 1: opt.fallback = MBEDTLS_SSL_IS_FALLBACK; break;
|
|
default: goto usage;
|
|
}
|
|
}
|
|
else if( strcmp( p, "extended_ms" ) == 0 )
|
|
{
|
|
switch( atoi( q ) )
|
|
{
|
|
case 0: opt.extended_ms = MBEDTLS_SSL_EXTENDED_MS_DISABLED; break;
|
|
case 1: opt.extended_ms = MBEDTLS_SSL_EXTENDED_MS_ENABLED; break;
|
|
default: goto usage;
|
|
}
|
|
}
|
|
else if( strcmp( p, "etm" ) == 0 )
|
|
{
|
|
switch( atoi( q ) )
|
|
{
|
|
case 0: opt.etm = MBEDTLS_SSL_ETM_DISABLED; break;
|
|
case 1: opt.etm = MBEDTLS_SSL_ETM_ENABLED; break;
|
|
default: goto usage;
|
|
}
|
|
}
|
|
else if( strcmp( p, "min_version" ) == 0 )
|
|
{
|
|
if( strcmp( q, "ssl3" ) == 0 )
|
|
opt.min_version = MBEDTLS_SSL_MINOR_VERSION_0;
|
|
else if( strcmp( q, "tls1" ) == 0 )
|
|
opt.min_version = MBEDTLS_SSL_MINOR_VERSION_1;
|
|
else if( strcmp( q, "tls1_1" ) == 0 ||
|
|
strcmp( q, "dtls1" ) == 0 )
|
|
opt.min_version = MBEDTLS_SSL_MINOR_VERSION_2;
|
|
else if( strcmp( q, "tls1_2" ) == 0 ||
|
|
strcmp( q, "dtls1_2" ) == 0 )
|
|
opt.min_version = MBEDTLS_SSL_MINOR_VERSION_3;
|
|
else
|
|
goto usage;
|
|
}
|
|
else if( strcmp( p, "max_version" ) == 0 )
|
|
{
|
|
if( strcmp( q, "ssl3" ) == 0 )
|
|
opt.max_version = MBEDTLS_SSL_MINOR_VERSION_0;
|
|
else if( strcmp( q, "tls1" ) == 0 )
|
|
opt.max_version = MBEDTLS_SSL_MINOR_VERSION_1;
|
|
else if( strcmp( q, "tls1_1" ) == 0 ||
|
|
strcmp( q, "dtls1" ) == 0 )
|
|
opt.max_version = MBEDTLS_SSL_MINOR_VERSION_2;
|
|
else if( strcmp( q, "tls1_2" ) == 0 ||
|
|
strcmp( q, "dtls1_2" ) == 0 )
|
|
opt.max_version = MBEDTLS_SSL_MINOR_VERSION_3;
|
|
else
|
|
goto usage;
|
|
}
|
|
else if( strcmp( p, "arc4" ) == 0 )
|
|
{
|
|
switch( atoi( q ) )
|
|
{
|
|
case 0: opt.arc4 = MBEDTLS_SSL_ARC4_DISABLED; break;
|
|
case 1: opt.arc4 = MBEDTLS_SSL_ARC4_ENABLED; break;
|
|
default: goto usage;
|
|
}
|
|
}
|
|
else if( strcmp( p, "force_version" ) == 0 )
|
|
{
|
|
if( strcmp( q, "ssl3" ) == 0 )
|
|
{
|
|
opt.min_version = MBEDTLS_SSL_MINOR_VERSION_0;
|
|
opt.max_version = MBEDTLS_SSL_MINOR_VERSION_0;
|
|
}
|
|
else if( strcmp( q, "tls1" ) == 0 )
|
|
{
|
|
opt.min_version = MBEDTLS_SSL_MINOR_VERSION_1;
|
|
opt.max_version = MBEDTLS_SSL_MINOR_VERSION_1;
|
|
}
|
|
else if( strcmp( q, "tls1_1" ) == 0 )
|
|
{
|
|
opt.min_version = MBEDTLS_SSL_MINOR_VERSION_2;
|
|
opt.max_version = MBEDTLS_SSL_MINOR_VERSION_2;
|
|
}
|
|
else if( strcmp( q, "tls1_2" ) == 0 )
|
|
{
|
|
opt.min_version = MBEDTLS_SSL_MINOR_VERSION_3;
|
|
opt.max_version = MBEDTLS_SSL_MINOR_VERSION_3;
|
|
}
|
|
else if( strcmp( q, "dtls1" ) == 0 )
|
|
{
|
|
opt.min_version = MBEDTLS_SSL_MINOR_VERSION_2;
|
|
opt.max_version = MBEDTLS_SSL_MINOR_VERSION_2;
|
|
opt.transport = MBEDTLS_SSL_TRANSPORT_DATAGRAM;
|
|
}
|
|
else if( strcmp( q, "dtls1_2" ) == 0 )
|
|
{
|
|
opt.min_version = MBEDTLS_SSL_MINOR_VERSION_3;
|
|
opt.max_version = MBEDTLS_SSL_MINOR_VERSION_3;
|
|
opt.transport = MBEDTLS_SSL_TRANSPORT_DATAGRAM;
|
|
}
|
|
else
|
|
goto usage;
|
|
}
|
|
else if( strcmp( p, "auth_mode" ) == 0 )
|
|
{
|
|
if( strcmp( q, "none" ) == 0 )
|
|
opt.auth_mode = MBEDTLS_SSL_VERIFY_NONE;
|
|
else if( strcmp( q, "optional" ) == 0 )
|
|
opt.auth_mode = MBEDTLS_SSL_VERIFY_OPTIONAL;
|
|
else if( strcmp( q, "required" ) == 0 )
|
|
opt.auth_mode = MBEDTLS_SSL_VERIFY_REQUIRED;
|
|
else
|
|
goto usage;
|
|
}
|
|
else if( strcmp( p, "max_frag_len" ) == 0 )
|
|
{
|
|
if( strcmp( q, "512" ) == 0 )
|
|
opt.mfl_code = MBEDTLS_SSL_MAX_FRAG_LEN_512;
|
|
else if( strcmp( q, "1024" ) == 0 )
|
|
opt.mfl_code = MBEDTLS_SSL_MAX_FRAG_LEN_1024;
|
|
else if( strcmp( q, "2048" ) == 0 )
|
|
opt.mfl_code = MBEDTLS_SSL_MAX_FRAG_LEN_2048;
|
|
else if( strcmp( q, "4096" ) == 0 )
|
|
opt.mfl_code = MBEDTLS_SSL_MAX_FRAG_LEN_4096;
|
|
else
|
|
goto usage;
|
|
}
|
|
else if( strcmp( p, "trunc_hmac" ) == 0 )
|
|
{
|
|
switch( atoi( q ) )
|
|
{
|
|
case 0: opt.trunc_hmac = MBEDTLS_SSL_TRUNC_HMAC_DISABLED; break;
|
|
case 1: opt.trunc_hmac = MBEDTLS_SSL_TRUNC_HMAC_ENABLED; break;
|
|
default: goto usage;
|
|
}
|
|
}
|
|
else if( strcmp( p, "hs_timeout" ) == 0 )
|
|
{
|
|
if( ( p = strchr( q, '-' ) ) == NULL )
|
|
goto usage;
|
|
*p++ = '\0';
|
|
opt.hs_to_min = atoi( q );
|
|
opt.hs_to_max = atoi( p );
|
|
if( opt.hs_to_min == 0 || opt.hs_to_max < opt.hs_to_min )
|
|
goto usage;
|
|
}
|
|
else if( strcmp( p, "recsplit" ) == 0 )
|
|
{
|
|
opt.recsplit = atoi( q );
|
|
if( opt.recsplit < 0 || opt.recsplit > 1 )
|
|
goto usage;
|
|
}
|
|
else
|
|
goto usage;
|
|
}
|
|
|
|
#if defined(MBEDTLS_DEBUG_C)
|
|
mbedtls_debug_set_threshold( opt.debug_level );
|
|
#endif
|
|
|
|
if( opt.force_ciphersuite[0] > 0 )
|
|
{
|
|
const mbedtls_ssl_ciphersuite_t *ciphersuite_info;
|
|
ciphersuite_info = mbedtls_ssl_ciphersuite_from_id( opt.force_ciphersuite[0] );
|
|
|
|
if( opt.max_version != -1 &&
|
|
ciphersuite_info->min_minor_ver > opt.max_version )
|
|
{
|
|
mbedtls_printf("forced ciphersuite not allowed with this protocol version\n");
|
|
ret = 2;
|
|
goto usage;
|
|
}
|
|
if( opt.min_version != -1 &&
|
|
ciphersuite_info->max_minor_ver < opt.min_version )
|
|
{
|
|
mbedtls_printf("forced ciphersuite not allowed with this protocol version\n");
|
|
ret = 2;
|
|
goto usage;
|
|
}
|
|
|
|
/* If the server selects a version that's not supported by
|
|
* this suite, then there will be no common ciphersuite... */
|
|
if( opt.max_version == -1 ||
|
|
opt.max_version > ciphersuite_info->max_minor_ver )
|
|
{
|
|
opt.max_version = ciphersuite_info->max_minor_ver;
|
|
}
|
|
if( opt.min_version < ciphersuite_info->min_minor_ver )
|
|
{
|
|
opt.min_version = ciphersuite_info->min_minor_ver;
|
|
/* DTLS starts with TLS 1.1 */
|
|
if( opt.transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
|
|
opt.min_version < MBEDTLS_SSL_MINOR_VERSION_2 )
|
|
opt.min_version = MBEDTLS_SSL_MINOR_VERSION_2;
|
|
}
|
|
|
|
/* Enable RC4 if needed and not explicitly disabled */
|
|
if( ciphersuite_info->cipher == MBEDTLS_CIPHER_ARC4_128 )
|
|
{
|
|
if( opt.arc4 == MBEDTLS_SSL_ARC4_DISABLED )
|
|
{
|
|
mbedtls_printf("forced RC4 ciphersuite with RC4 disabled\n");
|
|
ret = 2;
|
|
goto usage;
|
|
}
|
|
|
|
opt.arc4 = MBEDTLS_SSL_ARC4_ENABLED;
|
|
}
|
|
}
|
|
|
|
#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
|
|
/*
|
|
* Unhexify the pre-shared key if any is given
|
|
*/
|
|
if( strlen( opt.psk ) )
|
|
{
|
|
unsigned char c;
|
|
size_t j;
|
|
|
|
if( strlen( opt.psk ) % 2 != 0 )
|
|
{
|
|
mbedtls_printf("pre-shared key not valid hex\n");
|
|
goto exit;
|
|
}
|
|
|
|
psk_len = strlen( opt.psk ) / 2;
|
|
|
|
for( j = 0; j < strlen( opt.psk ); j += 2 )
|
|
{
|
|
c = opt.psk[j];
|
|
if( c >= '0' && c <= '9' )
|
|
c -= '0';
|
|
else if( c >= 'a' && c <= 'f' )
|
|
c -= 'a' - 10;
|
|
else if( c >= 'A' && c <= 'F' )
|
|
c -= 'A' - 10;
|
|
else
|
|
{
|
|
mbedtls_printf("pre-shared key not valid hex\n");
|
|
goto exit;
|
|
}
|
|
psk[ j / 2 ] = c << 4;
|
|
|
|
c = opt.psk[j + 1];
|
|
if( c >= '0' && c <= '9' )
|
|
c -= '0';
|
|
else if( c >= 'a' && c <= 'f' )
|
|
c -= 'a' - 10;
|
|
else if( c >= 'A' && c <= 'F' )
|
|
c -= 'A' - 10;
|
|
else
|
|
{
|
|
mbedtls_printf("pre-shared key not valid hex\n");
|
|
goto exit;
|
|
}
|
|
psk[ j / 2 ] |= c;
|
|
}
|
|
}
|
|
#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */
|
|
|
|
#if defined(MBEDTLS_SSL_ALPN)
|
|
if( opt.alpn_string != NULL )
|
|
{
|
|
p = (char *) opt.alpn_string;
|
|
i = 0;
|
|
|
|
/* Leave room for a final NULL in alpn_list */
|
|
while( i < (int) sizeof alpn_list - 1 && *p != '\0' )
|
|
{
|
|
alpn_list[i++] = p;
|
|
|
|
/* Terminate the current string and move on to next one */
|
|
while( *p != ',' && *p != '\0' )
|
|
p++;
|
|
if( *p == ',' )
|
|
*p++ = '\0';
|
|
}
|
|
}
|
|
#endif /* MBEDTLS_SSL_ALPN */
|
|
|
|
/*
|
|
* 0. Initialize the RNG and the session data
|
|
*/
|
|
mbedtls_printf( "\n . Seeding the random number generator..." );
|
|
fflush( stdout );
|
|
|
|
mbedtls_entropy_init( &entropy );
|
|
if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func, &entropy,
|
|
(const unsigned char *) pers,
|
|
strlen( pers ) ) ) != 0 )
|
|
{
|
|
mbedtls_printf( " failed\n ! mbedtls_ctr_drbg_seed returned -0x%x\n", -ret );
|
|
goto exit;
|
|
}
|
|
|
|
mbedtls_printf( " ok\n" );
|
|
|
|
#if defined(MBEDTLS_X509_CRT_PARSE_C)
|
|
/*
|
|
* 1.1. Load the trusted CA
|
|
*/
|
|
mbedtls_printf( " . Loading the CA root certificate ..." );
|
|
fflush( stdout );
|
|
|
|
#if defined(MBEDTLS_FS_IO)
|
|
if( strlen( opt.ca_path ) )
|
|
if( strcmp( opt.ca_path, "none" ) == 0 )
|
|
ret = 0;
|
|
else
|
|
ret = mbedtls_x509_crt_parse_path( &cacert, opt.ca_path );
|
|
else if( strlen( opt.ca_file ) )
|
|
if( strcmp( opt.ca_file, "none" ) == 0 )
|
|
ret = 0;
|
|
else
|
|
ret = mbedtls_x509_crt_parse_file( &cacert, opt.ca_file );
|
|
else
|
|
#endif
|
|
#if defined(MBEDTLS_CERTS_C)
|
|
for( i = 0; mbedtls_test_cas[i] != NULL; i++ )
|
|
{
|
|
ret = mbedtls_x509_crt_parse( &cacert,
|
|
(const unsigned char *) mbedtls_test_cas[i],
|
|
mbedtls_test_cas_len[i] );
|
|
if( ret != 0 )
|
|
break;
|
|
}
|
|
#else
|
|
{
|
|
ret = 1;
|
|
mbedtls_printf("MBEDTLS_CERTS_C not defined.");
|
|
}
|
|
#endif
|
|
if( ret < 0 )
|
|
{
|
|
mbedtls_printf( " failed\n ! mbedtls_x509_crt_parse returned -0x%x\n\n", -ret );
|
|
goto exit;
|
|
}
|
|
|
|
mbedtls_printf( " ok (%d skipped)\n", ret );
|
|
|
|
/*
|
|
* 1.2. Load own certificate and private key
|
|
*
|
|
* (can be skipped if client authentication is not required)
|
|
*/
|
|
mbedtls_printf( " . Loading the client cert. and key..." );
|
|
fflush( stdout );
|
|
|
|
#if defined(MBEDTLS_FS_IO)
|
|
if( strlen( opt.crt_file ) )
|
|
if( strcmp( opt.crt_file, "none" ) == 0 )
|
|
ret = 0;
|
|
else
|
|
ret = mbedtls_x509_crt_parse_file( &clicert, opt.crt_file );
|
|
else
|
|
#endif
|
|
#if defined(MBEDTLS_CERTS_C)
|
|
ret = mbedtls_x509_crt_parse( &clicert, (const unsigned char *) mbedtls_test_cli_crt,
|
|
mbedtls_test_cli_crt_len );
|
|
#else
|
|
{
|
|
ret = 1;
|
|
mbedtls_printf("MBEDTLS_CERTS_C not defined.");
|
|
}
|
|
#endif
|
|
if( ret != 0 )
|
|
{
|
|
mbedtls_printf( " failed\n ! mbedtls_x509_crt_parse returned -0x%x\n\n", -ret );
|
|
goto exit;
|
|
}
|
|
|
|
#if defined(MBEDTLS_FS_IO)
|
|
if( strlen( opt.key_file ) )
|
|
if( strcmp( opt.key_file, "none" ) == 0 )
|
|
ret = 0;
|
|
else
|
|
ret = mbedtls_pk_parse_keyfile( &pkey, opt.key_file, "" );
|
|
else
|
|
#endif
|
|
#if defined(MBEDTLS_CERTS_C)
|
|
ret = mbedtls_pk_parse_key( &pkey, (const unsigned char *) mbedtls_test_cli_key,
|
|
mbedtls_test_cli_key_len, NULL, 0 );
|
|
#else
|
|
{
|
|
ret = 1;
|
|
mbedtls_printf("MBEDTLS_CERTS_C not defined.");
|
|
}
|
|
#endif
|
|
if( ret != 0 )
|
|
{
|
|
mbedtls_printf( " failed\n ! mbedtls_pk_parse_key returned -0x%x\n\n", -ret );
|
|
goto exit;
|
|
}
|
|
|
|
mbedtls_printf( " ok\n" );
|
|
#endif /* MBEDTLS_X509_CRT_PARSE_C */
|
|
|
|
/*
|
|
* 2. Start the connection
|
|
*/
|
|
if( opt.server_addr == NULL)
|
|
opt.server_addr = opt.server_name;
|
|
|
|
mbedtls_printf( " . Connecting to %s/%s/%-4d...",
|
|
opt.transport == MBEDTLS_SSL_TRANSPORT_STREAM ? "tcp" : "udp",
|
|
opt.server_addr, opt.server_port );
|
|
fflush( stdout );
|
|
|
|
if( ( ret = mbedtls_net_connect( &server_fd, opt.server_addr, opt.server_port,
|
|
opt.transport == MBEDTLS_SSL_TRANSPORT_STREAM ?
|
|
MBEDTLS_NET_PROTO_TCP : MBEDTLS_NET_PROTO_UDP ) ) != 0 )
|
|
{
|
|
mbedtls_printf( " failed\n ! mbedtls_net_connect returned -0x%x\n\n", -ret );
|
|
goto exit;
|
|
}
|
|
|
|
if( opt.nbio > 0 )
|
|
ret = mbedtls_net_set_nonblock( server_fd );
|
|
else
|
|
ret = mbedtls_net_set_block( server_fd );
|
|
if( ret != 0 )
|
|
{
|
|
mbedtls_printf( " failed\n ! net_set_(non)block() returned -0x%x\n\n", -ret );
|
|
goto exit;
|
|
}
|
|
|
|
mbedtls_printf( " ok\n" );
|
|
|
|
/*
|
|
* 3. Setup stuff
|
|
*/
|
|
mbedtls_printf( " . Setting up the SSL/TLS structure..." );
|
|
fflush( stdout );
|
|
|
|
if( ( ret = mbedtls_ssl_config_defaults( &conf,
|
|
MBEDTLS_SSL_IS_CLIENT,
|
|
opt.transport ) ) != 0 )
|
|
{
|
|
mbedtls_printf( " failed\n ! mbedtls_ssl_config_defaults returned -0x%x\n\n", -ret );
|
|
goto exit;
|
|
}
|
|
|
|
if( ( ret = mbedtls_ssl_setup( &ssl, &conf ) ) != 0 )
|
|
{
|
|
mbedtls_printf( " failed\n ! mbedtls_ssl_setup returned -0x%x\n\n", -ret );
|
|
goto exit;
|
|
}
|
|
|
|
#if defined(MBEDTLS_X509_CRT_PARSE_C)
|
|
if( opt.debug_level > 0 )
|
|
mbedtls_ssl_set_verify( &conf, my_verify, NULL );
|
|
#endif
|
|
|
|
if( opt.auth_mode != DFL_AUTH_MODE )
|
|
mbedtls_ssl_set_authmode( &conf, opt.auth_mode );
|
|
|
|
#if defined(MBEDTLS_SSL_PROTO_DTLS)
|
|
if( opt.hs_to_min != DFL_HS_TO_MIN || opt.hs_to_max != DFL_HS_TO_MAX )
|
|
mbedtls_ssl_set_handshake_timeout( &conf, opt.hs_to_min, opt.hs_to_max );
|
|
#endif /* MBEDTLS_SSL_PROTO_DTLS */
|
|
|
|
#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
|
|
if( ( ret = mbedtls_ssl_set_max_frag_len( &conf, opt.mfl_code ) ) != 0 )
|
|
{
|
|
mbedtls_printf( " failed\n ! mbedtls_ssl_set_max_frag_len returned %d\n\n", ret );
|
|
goto exit;
|
|
}
|
|
#endif
|
|
|
|
#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
|
|
if( opt.trunc_hmac != DFL_TRUNC_HMAC )
|
|
mbedtls_ssl_set_truncated_hmac( &conf, opt.trunc_hmac );
|
|
#endif
|
|
|
|
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
|
|
if( opt.extended_ms != DFL_EXTENDED_MS )
|
|
mbedtls_ssl_set_extended_master_secret( &conf, opt.extended_ms );
|
|
#endif
|
|
|
|
#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
|
|
if( opt.etm != DFL_ETM )
|
|
mbedtls_ssl_set_encrypt_then_mac( &conf, opt.etm );
|
|
#endif
|
|
|
|
#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING)
|
|
if( opt.recsplit != DFL_RECSPLIT )
|
|
mbedtls_ssl_set_cbc_record_splitting( &conf, opt.recsplit
|
|
? MBEDTLS_SSL_CBC_RECORD_SPLITTING_ENABLED
|
|
: MBEDTLS_SSL_CBC_RECORD_SPLITTING_DISABLED );
|
|
#endif
|
|
|
|
#if defined(MBEDTLS_SSL_ALPN)
|
|
if( opt.alpn_string != NULL )
|
|
if( ( ret = mbedtls_ssl_set_alpn_protocols( &conf, alpn_list ) ) != 0 )
|
|
{
|
|
mbedtls_printf( " failed\n ! mbedtls_ssl_set_alpn_protocols returned %d\n\n", ret );
|
|
goto exit;
|
|
}
|
|
#endif
|
|
|
|
mbedtls_ssl_set_rng( &ssl, mbedtls_ctr_drbg_random, &ctr_drbg );
|
|
mbedtls_ssl_set_dbg( &conf, my_debug, stdout );
|
|
|
|
if( opt.nbio == 2 )
|
|
mbedtls_ssl_set_bio( &ssl, &server_fd, my_send, my_recv, NULL );
|
|
else
|
|
mbedtls_ssl_set_bio( &ssl, &server_fd, mbedtls_net_send, mbedtls_net_recv,
|
|
#if defined(MBEDTLS_HAVE_TIME)
|
|
opt.nbio == 0 ? mbedtls_net_recv_timeout : NULL
|
|
#else
|
|
NULL
|
|
#endif
|
|
);
|
|
mbedtls_ssl_set_read_timeout( &conf, opt.read_timeout );
|
|
|
|
#if defined(MBEDTLS_SSL_SESSION_TICKETS)
|
|
if( ( ret = mbedtls_ssl_set_session_tickets( &conf, opt.tickets ) ) != 0 )
|
|
{
|
|
mbedtls_printf( " failed\n ! mbedtls_ssl_set_session_tickets returned %d\n\n", ret );
|
|
goto exit;
|
|
}
|
|
#endif
|
|
|
|
if( opt.force_ciphersuite[0] != DFL_FORCE_CIPHER )
|
|
mbedtls_ssl_set_ciphersuites( &conf, opt.force_ciphersuite );
|
|
|
|
if( opt.arc4 != DFL_ARC4 )
|
|
mbedtls_ssl_set_arc4_support( &conf, opt.arc4 );
|
|
|
|
if( opt.allow_legacy != DFL_ALLOW_LEGACY )
|
|
mbedtls_ssl_legacy_renegotiation( &conf, opt.allow_legacy );
|
|
#if defined(MBEDTLS_SSL_RENEGOTIATION)
|
|
mbedtls_ssl_set_renegotiation( &conf, opt.renegotiation );
|
|
#endif
|
|
|
|
#if defined(MBEDTLS_X509_CRT_PARSE_C)
|
|
if( strcmp( opt.ca_path, "none" ) != 0 &&
|
|
strcmp( opt.ca_file, "none" ) != 0 )
|
|
{
|
|
mbedtls_ssl_set_ca_chain( &conf, &cacert, NULL );
|
|
}
|
|
if( strcmp( opt.crt_file, "none" ) != 0 &&
|
|
strcmp( opt.key_file, "none" ) != 0 )
|
|
{
|
|
if( ( ret = mbedtls_ssl_set_own_cert( &ssl, &clicert, &pkey ) ) != 0 )
|
|
{
|
|
mbedtls_printf( " failed\n ! mbedtls_ssl_set_own_cert returned %d\n\n", ret );
|
|
goto exit;
|
|
}
|
|
}
|
|
if( ( ret = mbedtls_ssl_set_hostname( &ssl, opt.server_name ) ) != 0 )
|
|
{
|
|
mbedtls_printf( " failed\n ! mbedtls_ssl_set_hostname returned %d\n\n", ret );
|
|
goto exit;
|
|
}
|
|
#endif
|
|
|
|
#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
|
|
if( ( ret = mbedtls_ssl_set_psk( &ssl, psk, psk_len,
|
|
(const unsigned char *) opt.psk_identity,
|
|
strlen( opt.psk_identity ) ) ) != 0 )
|
|
{
|
|
mbedtls_printf( " failed\n ! mbedtls_ssl_set_psk returned %d\n\n", ret );
|
|
goto exit;
|
|
}
|
|
#endif
|
|
|
|
if( opt.min_version != DFL_MIN_VERSION )
|
|
{
|
|
ret = mbedtls_ssl_set_min_version( &conf, MBEDTLS_SSL_MAJOR_VERSION_3, opt.min_version );
|
|
if( ret != 0 )
|
|
{
|
|
mbedtls_printf( " failed\n ! selected min_version is not available\n" );
|
|
goto exit;
|
|
}
|
|
}
|
|
|
|
if( opt.max_version != DFL_MAX_VERSION )
|
|
{
|
|
ret = mbedtls_ssl_set_max_version( &conf, MBEDTLS_SSL_MAJOR_VERSION_3, opt.max_version );
|
|
if( ret != 0 )
|
|
{
|
|
mbedtls_printf( " failed\n ! selected max_version is not available\n" );
|
|
goto exit;
|
|
}
|
|
}
|
|
|
|
#if defined(MBEDTLS_SSL_FALLBACK_SCSV)
|
|
if( opt.fallback != DFL_FALLBACK )
|
|
mbedtls_ssl_set_fallback( &conf, opt.fallback );
|
|
#endif
|
|
|
|
mbedtls_printf( " ok\n" );
|
|
|
|
/*
|
|
* 4. Handshake
|
|
*/
|
|
mbedtls_printf( " . Performing the SSL/TLS handshake..." );
|
|
fflush( stdout );
|
|
|
|
while( ( ret = mbedtls_ssl_handshake( &ssl ) ) != 0 )
|
|
{
|
|
if( ret != MBEDTLS_ERR_SSL_WANT_READ && ret != MBEDTLS_ERR_SSL_WANT_WRITE )
|
|
{
|
|
mbedtls_printf( " failed\n ! mbedtls_ssl_handshake returned -0x%x\n", -ret );
|
|
if( ret == MBEDTLS_ERR_X509_CERT_VERIFY_FAILED )
|
|
mbedtls_printf(
|
|
" Unable to verify the server's certificate. "
|
|
"Either it is invalid,\n"
|
|
" or you didn't set ca_file or ca_path "
|
|
"to an appropriate value.\n"
|
|
" Alternatively, you may want to use "
|
|
"auth_mode=optional for testing purposes.\n" );
|
|
mbedtls_printf( "\n" );
|
|
goto exit;
|
|
}
|
|
}
|
|
|
|
mbedtls_printf( " ok\n [ Protocol is %s ]\n [ Ciphersuite is %s ]\n",
|
|
mbedtls_ssl_get_version( &ssl ), mbedtls_ssl_get_ciphersuite( &ssl ) );
|
|
|
|
if( ( ret = mbedtls_ssl_get_record_expansion( &ssl ) ) >= 0 )
|
|
mbedtls_printf( " [ Record expansion is %d ]\n", ret );
|
|
else
|
|
mbedtls_printf( " [ Record expansion is unknown (compression) ]\n" );
|
|
|
|
#if defined(MBEDTLS_SSL_ALPN)
|
|
if( opt.alpn_string != NULL )
|
|
{
|
|
const char *alp = mbedtls_ssl_get_alpn_protocol( &ssl );
|
|
mbedtls_printf( " [ Application Layer Protocol is %s ]\n",
|
|
alp ? alp : "(none)" );
|
|
}
|
|
#endif
|
|
|
|
if( opt.reconnect != 0 )
|
|
{
|
|
mbedtls_printf(" . Saving session for reuse..." );
|
|
fflush( stdout );
|
|
|
|
if( ( ret = mbedtls_ssl_get_session( &ssl, &saved_session ) ) != 0 )
|
|
{
|
|
mbedtls_printf( " failed\n ! mbedtls_ssl_get_session returned -0x%x\n\n", -ret );
|
|
goto exit;
|
|
}
|
|
|
|
mbedtls_printf( " ok\n" );
|
|
}
|
|
|
|
#if defined(MBEDTLS_X509_CRT_PARSE_C)
|
|
/*
|
|
* 5. Verify the server certificate
|
|
*/
|
|
mbedtls_printf( " . Verifying peer X.509 certificate..." );
|
|
|
|
if( ( ret = mbedtls_ssl_get_verify_result( &ssl ) ) != 0 )
|
|
{
|
|
char vrfy_buf[512];
|
|
|
|
mbedtls_printf( " failed\n" );
|
|
|
|
mbedtls_x509_crt_verify_info( vrfy_buf, sizeof( vrfy_buf ), " ! ", ret );
|
|
|
|
mbedtls_printf( "%s\n", vrfy_buf );
|
|
}
|
|
else
|
|
mbedtls_printf( " ok\n" );
|
|
|
|
if( mbedtls_ssl_get_peer_cert( &ssl ) != NULL )
|
|
{
|
|
mbedtls_printf( " . Peer certificate information ...\n" );
|
|
mbedtls_x509_crt_info( (char *) buf, sizeof( buf ) - 1, " ",
|
|
mbedtls_ssl_get_peer_cert( &ssl ) );
|
|
mbedtls_printf( "%s\n", buf );
|
|
}
|
|
#endif /* MBEDTLS_X509_CRT_PARSE_C */
|
|
|
|
#if defined(MBEDTLS_SSL_RENEGOTIATION)
|
|
if( opt.renegotiate )
|
|
{
|
|
/*
|
|
* Perform renegotiation (this must be done when the server is waiting
|
|
* for input from our side).
|
|
*/
|
|
mbedtls_printf( " . Performing renegotiation..." );
|
|
fflush( stdout );
|
|
while( ( ret = mbedtls_ssl_renegotiate( &ssl ) ) != 0 )
|
|
{
|
|
if( ret != MBEDTLS_ERR_SSL_WANT_READ &&
|
|
ret != MBEDTLS_ERR_SSL_WANT_WRITE )
|
|
{
|
|
mbedtls_printf( " failed\n ! mbedtls_ssl_renegotiate returned %d\n\n", ret );
|
|
goto exit;
|
|
}
|
|
}
|
|
mbedtls_printf( " ok\n" );
|
|
}
|
|
#endif /* MBEDTLS_SSL_RENEGOTIATION */
|
|
|
|
/*
|
|
* 6. Write the GET request
|
|
*/
|
|
retry_left = opt.max_resend;
|
|
send_request:
|
|
mbedtls_printf( " > Write to server:" );
|
|
fflush( stdout );
|
|
|
|
len = mbedtls_snprintf( (char *) buf, sizeof(buf) - 1, GET_REQUEST,
|
|
opt.request_page );
|
|
tail_len = strlen( GET_REQUEST_END );
|
|
|
|
/* Add padding to GET request to reach opt.request_size in length */
|
|
if( opt.request_size != DFL_REQUEST_SIZE &&
|
|
len + tail_len < opt.request_size )
|
|
{
|
|
memset( buf + len, 'A', opt.request_size - len - tail_len );
|
|
len += opt.request_size - len - tail_len;
|
|
}
|
|
|
|
strncpy( (char *) buf + len, GET_REQUEST_END, sizeof(buf) - len - 1 );
|
|
len += tail_len;
|
|
|
|
/* Truncate if request size is smaller than the "natural" size */
|
|
if( opt.request_size != DFL_REQUEST_SIZE &&
|
|
len > opt.request_size )
|
|
{
|
|
len = opt.request_size;
|
|
|
|
/* Still end with \r\n unless that's really not possible */
|
|
if( len >= 2 ) buf[len - 2] = '\r';
|
|
if( len >= 1 ) buf[len - 1] = '\n';
|
|
}
|
|
|
|
if( opt.transport == MBEDTLS_SSL_TRANSPORT_STREAM )
|
|
{
|
|
for( written = 0, frags = 0; written < len; written += ret, frags++ )
|
|
{
|
|
while( ( ret = mbedtls_ssl_write( &ssl, buf + written, len - written ) )
|
|
<= 0 )
|
|
{
|
|
if( ret != MBEDTLS_ERR_SSL_WANT_READ &&
|
|
ret != MBEDTLS_ERR_SSL_WANT_WRITE )
|
|
{
|
|
mbedtls_printf( " failed\n ! mbedtls_ssl_write returned -0x%x\n\n", -ret );
|
|
goto exit;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else /* Not stream, so datagram */
|
|
{
|
|
do ret = mbedtls_ssl_write( &ssl, buf, len );
|
|
while( ret == MBEDTLS_ERR_SSL_WANT_READ ||
|
|
ret == MBEDTLS_ERR_SSL_WANT_WRITE );
|
|
|
|
if( ret < 0 )
|
|
{
|
|
mbedtls_printf( " failed\n ! mbedtls_ssl_write returned %d\n\n", ret );
|
|
goto exit;
|
|
}
|
|
|
|
frags = 1;
|
|
written = ret;
|
|
}
|
|
|
|
buf[written] = '\0';
|
|
mbedtls_printf( " %d bytes written in %d fragments\n\n%s\n", written, frags, (char *) buf );
|
|
|
|
/*
|
|
* 7. Read the HTTP response
|
|
*/
|
|
mbedtls_printf( " < Read from server:" );
|
|
fflush( stdout );
|
|
|
|
/*
|
|
* TLS and DTLS need different reading styles (stream vs datagram)
|
|
*/
|
|
if( opt.transport == MBEDTLS_SSL_TRANSPORT_STREAM )
|
|
{
|
|
do
|
|
{
|
|
len = sizeof( buf ) - 1;
|
|
memset( buf, 0, sizeof( buf ) );
|
|
ret = mbedtls_ssl_read( &ssl, buf, len );
|
|
|
|
if( ret == MBEDTLS_ERR_SSL_WANT_READ ||
|
|
ret == MBEDTLS_ERR_SSL_WANT_WRITE )
|
|
continue;
|
|
|
|
if( ret <= 0 )
|
|
{
|
|
switch( ret )
|
|
{
|
|
case MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY:
|
|
mbedtls_printf( " connection was closed gracefully\n" );
|
|
ret = 0;
|
|
goto close_notify;
|
|
|
|
case 0:
|
|
case MBEDTLS_ERR_NET_CONN_RESET:
|
|
mbedtls_printf( " connection was reset by peer\n" );
|
|
ret = 0;
|
|
goto reconnect;
|
|
|
|
default:
|
|
mbedtls_printf( " mbedtls_ssl_read returned -0x%x\n", -ret );
|
|
goto exit;
|
|
}
|
|
}
|
|
|
|
len = ret;
|
|
buf[len] = '\0';
|
|
mbedtls_printf( " %d bytes read\n\n%s", len, (char *) buf );
|
|
|
|
/* End of message should be detected according to the syntax of the
|
|
* application protocol (eg HTTP), just use a dummy test here. */
|
|
if( ret > 0 && buf[len-1] == '\n' )
|
|
{
|
|
ret = 0;
|
|
break;
|
|
}
|
|
}
|
|
while( 1 );
|
|
}
|
|
else /* Not stream, so datagram */
|
|
{
|
|
len = sizeof( buf ) - 1;
|
|
memset( buf, 0, sizeof( buf ) );
|
|
|
|
do ret = mbedtls_ssl_read( &ssl, buf, len );
|
|
while( ret == MBEDTLS_ERR_SSL_WANT_READ ||
|
|
ret == MBEDTLS_ERR_SSL_WANT_WRITE );
|
|
|
|
if( ret <= 0 )
|
|
{
|
|
switch( ret )
|
|
{
|
|
case MBEDTLS_ERR_SSL_TIMEOUT:
|
|
mbedtls_printf( " timeout\n" );
|
|
if( retry_left-- > 0 )
|
|
goto send_request;
|
|
goto exit;
|
|
|
|
case MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY:
|
|
mbedtls_printf( " connection was closed gracefully\n" );
|
|
ret = 0;
|
|
goto close_notify;
|
|
|
|
default:
|
|
mbedtls_printf( " mbedtls_ssl_read returned -0x%x\n", -ret );
|
|
goto exit;
|
|
}
|
|
}
|
|
|
|
len = ret;
|
|
buf[len] = '\0';
|
|
mbedtls_printf( " %d bytes read\n\n%s", len, (char *) buf );
|
|
ret = 0;
|
|
}
|
|
|
|
/*
|
|
* 7b. Continue doing data exchanges?
|
|
*/
|
|
if( --opt.exchanges > 0 )
|
|
goto send_request;
|
|
|
|
/*
|
|
* 8. Done, cleanly close the connection
|
|
*/
|
|
close_notify:
|
|
mbedtls_printf( " . Closing the connection..." );
|
|
|
|
/* No error checking, the connection might be closed already */
|
|
do ret = mbedtls_ssl_close_notify( &ssl );
|
|
while( ret == MBEDTLS_ERR_SSL_WANT_WRITE );
|
|
ret = 0;
|
|
|
|
mbedtls_printf( " done\n" );
|
|
|
|
/*
|
|
* 9. Reconnect?
|
|
*/
|
|
reconnect:
|
|
if( opt.reconnect != 0 )
|
|
{
|
|
--opt.reconnect;
|
|
|
|
mbedtls_net_close( server_fd );
|
|
|
|
#if defined(MBEDTLS_TIMING_C)
|
|
if( opt.reco_delay > 0 )
|
|
mbedtls_timing_m_sleep( 1000 * opt.reco_delay );
|
|
#endif
|
|
|
|
mbedtls_printf( " . Reconnecting with saved session..." );
|
|
fflush( stdout );
|
|
|
|
if( ( ret = mbedtls_ssl_session_reset( &ssl ) ) != 0 )
|
|
{
|
|
mbedtls_printf( " failed\n ! mbedtls_ssl_session_reset returned -0x%x\n\n", -ret );
|
|
goto exit;
|
|
}
|
|
|
|
if( ( ret = mbedtls_ssl_set_session( &ssl, &saved_session ) ) != 0 )
|
|
{
|
|
mbedtls_printf( " failed\n ! mbedtls_ssl_set_session returned %d\n\n", ret );
|
|
goto exit;
|
|
}
|
|
|
|
if( ( ret = mbedtls_net_connect( &server_fd, opt.server_addr, opt.server_port,
|
|
opt.transport == MBEDTLS_SSL_TRANSPORT_STREAM ?
|
|
MBEDTLS_NET_PROTO_TCP : MBEDTLS_NET_PROTO_UDP ) ) != 0 )
|
|
{
|
|
mbedtls_printf( " failed\n ! mbedtls_net_connect returned -0x%x\n\n", -ret );
|
|
goto exit;
|
|
}
|
|
|
|
if( opt.nbio > 0 )
|
|
ret = mbedtls_net_set_nonblock( server_fd );
|
|
else
|
|
ret = mbedtls_net_set_block( server_fd );
|
|
if( ret != 0 )
|
|
{
|
|
mbedtls_printf( " failed\n ! net_set_(non)block() returned -0x%x\n\n",
|
|
-ret );
|
|
goto exit;
|
|
}
|
|
|
|
while( ( ret = mbedtls_ssl_handshake( &ssl ) ) != 0 )
|
|
{
|
|
if( ret != MBEDTLS_ERR_SSL_WANT_READ &&
|
|
ret != MBEDTLS_ERR_SSL_WANT_WRITE )
|
|
{
|
|
mbedtls_printf( " failed\n ! mbedtls_ssl_handshake returned -0x%x\n\n", -ret );
|
|
goto exit;
|
|
}
|
|
}
|
|
|
|
mbedtls_printf( " ok\n" );
|
|
|
|
goto send_request;
|
|
}
|
|
|
|
/*
|
|
* Cleanup and exit
|
|
*/
|
|
exit:
|
|
#ifdef MBEDTLS_ERROR_C
|
|
if( ret != 0 )
|
|
{
|
|
char error_buf[100];
|
|
mbedtls_strerror( ret, error_buf, 100 );
|
|
mbedtls_printf("Last error was: -0x%X - %s\n\n", -ret, error_buf );
|
|
}
|
|
#endif
|
|
|
|
if( server_fd )
|
|
mbedtls_net_close( server_fd );
|
|
|
|
#if defined(MBEDTLS_X509_CRT_PARSE_C)
|
|
mbedtls_x509_crt_free( &clicert );
|
|
mbedtls_x509_crt_free( &cacert );
|
|
mbedtls_pk_free( &pkey );
|
|
#endif
|
|
mbedtls_ssl_session_free( &saved_session );
|
|
mbedtls_ssl_free( &ssl );
|
|
mbedtls_ssl_config_free( &conf );
|
|
mbedtls_ctr_drbg_free( &ctr_drbg );
|
|
mbedtls_entropy_free( &entropy );
|
|
|
|
#if defined(_WIN32)
|
|
mbedtls_printf( " + Press Enter to exit this program.\n" );
|
|
fflush( stdout ); getchar();
|
|
#endif
|
|
|
|
// Shell can not handle large exit numbers -> 1 for errors
|
|
if( ret < 0 )
|
|
ret = 1;
|
|
|
|
return( ret );
|
|
}
|
|
#endif /* MBEDTLS_BIGNUM_C && MBEDTLS_ENTROPY_C && MBEDTLS_SSL_TLS_C &&
|
|
MBEDTLS_SSL_CLI_C && MBEDTLS_NET_C && MBEDTLS_RSA_C &&
|
|
MBEDTLS_CTR_DRBG_C */
|