[388] | 1 | /***************************************************************************
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| 2 | * _ _ ____ _
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| 3 | * Project ___| | | | _ \| |
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| 4 | * / __| | | | |_) | |
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| 5 | * | (__| |_| | _ <| |___
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| 6 | * \___|\___/|_| \_\_____|
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| 7 | *
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| 8 | * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
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| 9 | *
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| 10 | * This software is licensed as described in the file COPYING, which
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| 11 | * you should have received as part of this distribution. The terms
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| 12 | * are also available at https://curl.haxx.se/docs/copyright.html.
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| 13 | *
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| 14 | * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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| 15 | * copies of the Software, and permit persons to whom the Software is
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| 16 | * furnished to do so, under the terms of the COPYING file.
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| 17 | *
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| 18 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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| 19 | * KIND, either express or implied.
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| 20 | *
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| 21 | ***************************************************************************/
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| 22 |
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| 23 | /*
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| 24 | * Source file for all CyaSSL-specific code for the TLS/SSL layer. No code
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| 25 | * but vtls.c should ever call or use these functions.
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| 26 | *
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| 27 | */
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| 28 |
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| 29 | #include "curl_setup.h"
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| 30 |
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| 31 | #ifdef USE_CYASSL
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| 32 |
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| 33 | #define WOLFSSL_OPTIONS_IGNORE_SYS
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| 34 | /* CyaSSL's version.h, which should contain only the version, should come
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| 35 | before all other CyaSSL includes and be immediately followed by build config
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| 36 | aka options.h. https://curl.haxx.se/mail/lib-2015-04/0069.html */
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| 37 | #include <cyassl/version.h>
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| 38 | #if defined(HAVE_CYASSL_OPTIONS_H) && (LIBCYASSL_VERSION_HEX > 0x03004008)
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| 39 | #if defined(CYASSL_API) || defined(WOLFSSL_API)
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| 40 | /* Safety measure. If either is defined some API include was already included
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| 41 | and that's a problem since options.h hasn't been included yet. */
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| 42 | #error "CyaSSL API was included before the CyaSSL build options."
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| 43 | #endif
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| 44 | #include <cyassl/options.h>
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| 45 | #endif
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| 46 |
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| 47 | /* To determine what functions are available we rely on one or both of:
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| 48 | - the user's options.h generated by CyaSSL/wolfSSL
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| 49 | - the symbols detected by curl's configure
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| 50 | Since they are markedly different from one another, and one or the other may
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| 51 | not be available, we do some checking below to bring things in sync. */
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| 52 |
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| 53 | /* HAVE_ALPN is wolfSSL's build time symbol for enabling ALPN in options.h. */
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| 54 | #ifndef HAVE_ALPN
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| 55 | #ifdef HAVE_WOLFSSL_USEALPN
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| 56 | #define HAVE_ALPN
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| 57 | #endif
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| 58 | #endif
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| 59 |
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| 60 | /* WOLFSSL_ALLOW_SSLV3 is wolfSSL's build time symbol for enabling SSLv3 in
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| 61 | options.h, but is only seen in >= 3.6.6 since that's when they started
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| 62 | disabling SSLv3 by default. */
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| 63 | #ifndef WOLFSSL_ALLOW_SSLV3
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| 64 | #if (LIBCYASSL_VERSION_HEX < 0x03006006) || \
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| 65 | defined(HAVE_WOLFSSLV3_CLIENT_METHOD)
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| 66 | #define WOLFSSL_ALLOW_SSLV3
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| 67 | #endif
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| 68 | #endif
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| 69 |
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| 70 | /* HAVE_SUPPORTED_CURVES is wolfSSL's build time symbol for enabling the ECC
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| 71 | supported curve extension in options.h. Note ECC is enabled separately. */
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| 72 | #ifndef HAVE_SUPPORTED_CURVES
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| 73 | #if defined(HAVE_CYASSL_CTX_USESUPPORTEDCURVE) || \
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| 74 | defined(HAVE_WOLFSSL_CTX_USESUPPORTEDCURVE)
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| 75 | #define HAVE_SUPPORTED_CURVES
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| 76 | #endif
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| 77 | #endif
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| 78 |
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| 79 | #ifdef HAVE_LIMITS_H
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| 80 | #include <limits.h>
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| 81 | #endif
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| 82 |
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| 83 | #include "urldata.h"
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| 84 | #include "sendf.h"
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| 85 | #include "inet_pton.h"
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| 86 | #include "vtls.h"
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| 87 | #include "parsedate.h"
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| 88 | #include "connect.h" /* for the connect timeout */
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| 89 | #include "select.h"
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| 90 | #include "strcase.h"
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| 91 | #include "x509asn1.h"
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| 92 | #include "curl_printf.h"
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| 93 |
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| 94 | #include <cyassl/openssl/ssl.h>
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| 95 | #include <cyassl/ssl.h>
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| 96 | #ifdef HAVE_CYASSL_ERROR_SSL_H
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| 97 | #include <cyassl/error-ssl.h>
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| 98 | #else
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| 99 | #include <cyassl/error.h>
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| 100 | #endif
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| 101 | #include <cyassl/ctaocrypt/random.h>
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| 102 | #include <cyassl/ctaocrypt/sha256.h>
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| 103 |
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| 104 | #include "cyassl.h"
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| 105 |
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| 106 | /* The last #include files should be: */
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| 107 | #include "curl_memory.h"
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| 108 | #include "memdebug.h"
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| 109 |
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| 110 | #if LIBCYASSL_VERSION_HEX < 0x02007002 /* < 2.7.2 */
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| 111 | #define CYASSL_MAX_ERROR_SZ 80
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| 112 | #endif
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| 113 |
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| 114 | /* KEEP_PEER_CERT is a product of the presence of build time symbol
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| 115 | OPENSSL_EXTRA without NO_CERTS, depending on the version. KEEP_PEER_CERT is
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| 116 | in wolfSSL's settings.h, and the latter two are build time symbols in
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| 117 | options.h. */
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| 118 | #ifndef KEEP_PEER_CERT
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| 119 | #if defined(HAVE_CYASSL_GET_PEER_CERTIFICATE) || \
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| 120 | defined(HAVE_WOLFSSL_GET_PEER_CERTIFICATE) || \
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| 121 | (defined(OPENSSL_EXTRA) && !defined(NO_CERTS))
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| 122 | #define KEEP_PEER_CERT
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| 123 | #endif
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| 124 | #endif
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| 125 |
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| 126 | struct ssl_backend_data {
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| 127 | SSL_CTX* ctx;
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| 128 | SSL* handle;
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| 129 | };
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| 130 |
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| 131 | #define BACKEND connssl->backend
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| 132 |
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| 133 | static Curl_recv cyassl_recv;
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| 134 | static Curl_send cyassl_send;
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| 135 |
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| 136 |
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| 137 | static int do_file_type(const char *type)
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| 138 | {
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| 139 | if(!type || !type[0])
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| 140 | return SSL_FILETYPE_PEM;
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| 141 | if(strcasecompare(type, "PEM"))
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| 142 | return SSL_FILETYPE_PEM;
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| 143 | if(strcasecompare(type, "DER"))
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| 144 | return SSL_FILETYPE_ASN1;
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| 145 | return -1;
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| 146 | }
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| 147 |
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| 148 | /*
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| 149 | * This function loads all the client/CA certificates and CRLs. Setup the TLS
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| 150 | * layer and do all necessary magic.
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| 151 | */
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| 152 | static CURLcode
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| 153 | cyassl_connect_step1(struct connectdata *conn,
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| 154 | int sockindex)
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| 155 | {
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| 156 | char error_buffer[CYASSL_MAX_ERROR_SZ];
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| 157 | char *ciphers;
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| 158 | struct Curl_easy *data = conn->data;
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| 159 | struct ssl_connect_data* connssl = &conn->ssl[sockindex];
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| 160 | SSL_METHOD* req_method = NULL;
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| 161 | curl_socket_t sockfd = conn->sock[sockindex];
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| 162 | #ifdef HAVE_SNI
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| 163 | bool sni = FALSE;
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| 164 | #define use_sni(x) sni = (x)
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| 165 | #else
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| 166 | #define use_sni(x) Curl_nop_stmt
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| 167 | #endif
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| 168 |
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| 169 | if(connssl->state == ssl_connection_complete)
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| 170 | return CURLE_OK;
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| 171 |
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| 172 | if(SSL_CONN_CONFIG(version_max) != CURL_SSLVERSION_MAX_NONE) {
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| 173 | failf(data, "CyaSSL does not support to set maximum SSL/TLS version");
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| 174 | return CURLE_SSL_CONNECT_ERROR;
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| 175 | }
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| 176 |
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| 177 | /* check to see if we've been told to use an explicit SSL/TLS version */
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| 178 | switch(SSL_CONN_CONFIG(version)) {
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| 179 | case CURL_SSLVERSION_DEFAULT:
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| 180 | case CURL_SSLVERSION_TLSv1:
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| 181 | #if LIBCYASSL_VERSION_HEX >= 0x03003000 /* >= 3.3.0 */
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| 182 | /* minimum protocol version is set later after the CTX object is created */
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| 183 | req_method = SSLv23_client_method();
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| 184 | #else
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| 185 | infof(data, "CyaSSL <3.3.0 cannot be configured to use TLS 1.0-1.2, "
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| 186 | "TLS 1.0 is used exclusively\n");
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| 187 | req_method = TLSv1_client_method();
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| 188 | #endif
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| 189 | use_sni(TRUE);
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| 190 | break;
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| 191 | case CURL_SSLVERSION_TLSv1_0:
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| 192 | req_method = TLSv1_client_method();
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| 193 | use_sni(TRUE);
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| 194 | break;
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| 195 | case CURL_SSLVERSION_TLSv1_1:
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| 196 | req_method = TLSv1_1_client_method();
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| 197 | use_sni(TRUE);
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| 198 | break;
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| 199 | case CURL_SSLVERSION_TLSv1_2:
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| 200 | req_method = TLSv1_2_client_method();
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| 201 | use_sni(TRUE);
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| 202 | break;
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| 203 | case CURL_SSLVERSION_TLSv1_3:
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| 204 | failf(data, "CyaSSL: TLS 1.3 is not yet supported");
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| 205 | return CURLE_SSL_CONNECT_ERROR;
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| 206 | case CURL_SSLVERSION_SSLv3:
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| 207 | #ifdef WOLFSSL_ALLOW_SSLV3
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| 208 | req_method = SSLv3_client_method();
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| 209 | use_sni(FALSE);
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| 210 | #else
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| 211 | failf(data, "CyaSSL does not support SSLv3");
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| 212 | return CURLE_NOT_BUILT_IN;
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| 213 | #endif
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| 214 | break;
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| 215 | case CURL_SSLVERSION_SSLv2:
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| 216 | failf(data, "CyaSSL does not support SSLv2");
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| 217 | return CURLE_SSL_CONNECT_ERROR;
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| 218 | default:
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| 219 | failf(data, "Unrecognized parameter passed via CURLOPT_SSLVERSION");
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| 220 | return CURLE_SSL_CONNECT_ERROR;
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| 221 | }
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| 222 |
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| 223 | if(!req_method) {
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| 224 | failf(data, "SSL: couldn't create a method!");
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| 225 | return CURLE_OUT_OF_MEMORY;
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| 226 | }
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| 227 |
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| 228 | if(BACKEND->ctx)
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| 229 | SSL_CTX_free(BACKEND->ctx);
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| 230 | BACKEND->ctx = SSL_CTX_new(req_method);
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| 231 |
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| 232 | if(!BACKEND->ctx) {
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| 233 | failf(data, "SSL: couldn't create a context!");
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| 234 | return CURLE_OUT_OF_MEMORY;
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| 235 | }
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| 236 |
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| 237 | switch(SSL_CONN_CONFIG(version)) {
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| 238 | case CURL_SSLVERSION_DEFAULT:
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| 239 | case CURL_SSLVERSION_TLSv1:
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| 240 | #if LIBCYASSL_VERSION_HEX > 0x03004006 /* > 3.4.6 */
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| 241 | /* Versions 3.3.0 to 3.4.6 we know the minimum protocol version is whatever
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| 242 | minimum version of TLS was built in and at least TLS 1.0. For later library
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| 243 | versions that could change (eg TLS 1.0 built in but defaults to TLS 1.1) so
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| 244 | we have this short circuit evaluation to find the minimum supported TLS
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| 245 | version. We use wolfSSL_CTX_SetMinVersion and not CyaSSL_SetMinVersion
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| 246 | because only the former will work before the user's CTX callback is called.
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| 247 | */
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| 248 | if((wolfSSL_CTX_SetMinVersion(BACKEND->ctx, WOLFSSL_TLSV1) != 1) &&
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| 249 | (wolfSSL_CTX_SetMinVersion(BACKEND->ctx, WOLFSSL_TLSV1_1) != 1) &&
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| 250 | (wolfSSL_CTX_SetMinVersion(BACKEND->ctx, WOLFSSL_TLSV1_2) != 1)) {
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| 251 | failf(data, "SSL: couldn't set the minimum protocol version");
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| 252 | return CURLE_SSL_CONNECT_ERROR;
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| 253 | }
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| 254 | #endif
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| 255 | break;
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| 256 | }
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| 257 |
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| 258 | ciphers = SSL_CONN_CONFIG(cipher_list);
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| 259 | if(ciphers) {
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| 260 | if(!SSL_CTX_set_cipher_list(BACKEND->ctx, ciphers)) {
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| 261 | failf(data, "failed setting cipher list: %s", ciphers);
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| 262 | return CURLE_SSL_CIPHER;
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| 263 | }
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| 264 | infof(data, "Cipher selection: %s\n", ciphers);
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| 265 | }
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| 266 |
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| 267 | #ifndef NO_FILESYSTEM
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| 268 | /* load trusted cacert */
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| 269 | if(SSL_CONN_CONFIG(CAfile)) {
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| 270 | if(1 != SSL_CTX_load_verify_locations(BACKEND->ctx,
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| 271 | SSL_CONN_CONFIG(CAfile),
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| 272 | SSL_CONN_CONFIG(CApath))) {
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| 273 | if(SSL_CONN_CONFIG(verifypeer)) {
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| 274 | /* Fail if we insist on successfully verifying the server. */
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| 275 | failf(data, "error setting certificate verify locations:\n"
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| 276 | " CAfile: %s\n CApath: %s",
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| 277 | SSL_CONN_CONFIG(CAfile)?
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| 278 | SSL_CONN_CONFIG(CAfile): "none",
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| 279 | SSL_CONN_CONFIG(CApath)?
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| 280 | SSL_CONN_CONFIG(CApath) : "none");
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| 281 | return CURLE_SSL_CACERT_BADFILE;
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| 282 | }
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| 283 | else {
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| 284 | /* Just continue with a warning if no strict certificate
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| 285 | verification is required. */
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| 286 | infof(data, "error setting certificate verify locations,"
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| 287 | " continuing anyway:\n");
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| 288 | }
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| 289 | }
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| 290 | else {
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| 291 | /* Everything is fine. */
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| 292 | infof(data, "successfully set certificate verify locations:\n");
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| 293 | }
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| 294 | infof(data,
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| 295 | " CAfile: %s\n"
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| 296 | " CApath: %s\n",
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| 297 | SSL_CONN_CONFIG(CAfile) ? SSL_CONN_CONFIG(CAfile):
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| 298 | "none",
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| 299 | SSL_CONN_CONFIG(CApath) ? SSL_CONN_CONFIG(CApath):
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| 300 | "none");
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| 301 | }
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| 302 |
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| 303 | /* Load the client certificate, and private key */
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| 304 | if(SSL_SET_OPTION(cert) && SSL_SET_OPTION(key)) {
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| 305 | int file_type = do_file_type(SSL_SET_OPTION(cert_type));
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| 306 |
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| 307 | if(SSL_CTX_use_certificate_file(BACKEND->ctx, SSL_SET_OPTION(cert),
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| 308 | file_type) != 1) {
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| 309 | failf(data, "unable to use client certificate (no key or wrong pass"
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| 310 | " phrase?)");
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| 311 | return CURLE_SSL_CONNECT_ERROR;
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| 312 | }
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| 313 |
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| 314 | file_type = do_file_type(SSL_SET_OPTION(key_type));
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| 315 | if(SSL_CTX_use_PrivateKey_file(BACKEND->ctx, SSL_SET_OPTION(key),
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| 316 | file_type) != 1) {
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| 317 | failf(data, "unable to set private key");
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| 318 | return CURLE_SSL_CONNECT_ERROR;
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| 319 | }
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| 320 | }
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| 321 | #endif /* !NO_FILESYSTEM */
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| 322 |
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| 323 | /* SSL always tries to verify the peer, this only says whether it should
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| 324 | * fail to connect if the verification fails, or if it should continue
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| 325 | * anyway. In the latter case the result of the verification is checked with
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| 326 | * SSL_get_verify_result() below. */
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| 327 | SSL_CTX_set_verify(BACKEND->ctx,
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| 328 | SSL_CONN_CONFIG(verifypeer)?SSL_VERIFY_PEER:
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| 329 | SSL_VERIFY_NONE,
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| 330 | NULL);
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| 331 |
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| 332 | #ifdef HAVE_SNI
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| 333 | if(sni) {
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| 334 | struct in_addr addr4;
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| 335 | #ifdef ENABLE_IPV6
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| 336 | struct in6_addr addr6;
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| 337 | #endif
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| 338 | const char * const hostname = SSL_IS_PROXY() ? conn->http_proxy.host.name :
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| 339 | conn->host.name;
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| 340 | size_t hostname_len = strlen(hostname);
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| 341 | if((hostname_len < USHRT_MAX) &&
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| 342 | (0 == Curl_inet_pton(AF_INET, hostname, &addr4)) &&
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| 343 | #ifdef ENABLE_IPV6
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| 344 | (0 == Curl_inet_pton(AF_INET6, hostname, &addr6)) &&
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| 345 | #endif
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| 346 | (CyaSSL_CTX_UseSNI(BACKEND->ctx, CYASSL_SNI_HOST_NAME, hostname,
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| 347 | (unsigned short)hostname_len) != 1)) {
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| 348 | infof(data, "WARNING: failed to configure server name indication (SNI) "
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| 349 | "TLS extension\n");
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| 350 | }
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| 351 | }
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| 352 | #endif
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| 353 |
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| 354 | #ifdef HAVE_SUPPORTED_CURVES
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| 355 | /* CyaSSL/wolfSSL does not send the supported ECC curves ext automatically:
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| 356 | https://github.com/wolfSSL/wolfssl/issues/366
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| 357 | The supported curves below are those also supported by OpenSSL 1.0.2 and
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| 358 | in the same order. */
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| 359 | CyaSSL_CTX_UseSupportedCurve(BACKEND->ctx, 0x17); /* secp256r1 */
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| 360 | CyaSSL_CTX_UseSupportedCurve(BACKEND->ctx, 0x19); /* secp521r1 */
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| 361 | CyaSSL_CTX_UseSupportedCurve(BACKEND->ctx, 0x18); /* secp384r1 */
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| 362 | #endif
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| 363 |
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| 364 | /* give application a chance to interfere with SSL set up. */
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| 365 | if(data->set.ssl.fsslctx) {
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| 366 | CURLcode result = CURLE_OK;
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| 367 | result = (*data->set.ssl.fsslctx)(data, BACKEND->ctx,
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| 368 | data->set.ssl.fsslctxp);
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| 369 | if(result) {
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| 370 | failf(data, "error signaled by ssl ctx callback");
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| 371 | return result;
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| 372 | }
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| 373 | }
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| 374 | #ifdef NO_FILESYSTEM
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| 375 | else if(SSL_CONN_CONFIG(verifypeer)) {
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| 376 | failf(data, "SSL: Certificates couldn't be loaded because CyaSSL was built"
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| 377 | " with \"no filesystem\". Either disable peer verification"
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| 378 | " (insecure) or if you are building an application with libcurl you"
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| 379 | " can load certificates via CURLOPT_SSL_CTX_FUNCTION.");
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| 380 | return CURLE_SSL_CONNECT_ERROR;
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| 381 | }
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| 382 | #endif
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| 383 |
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| 384 | /* Let's make an SSL structure */
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| 385 | if(BACKEND->handle)
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| 386 | SSL_free(BACKEND->handle);
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| 387 | BACKEND->handle = SSL_new(BACKEND->ctx);
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| 388 | if(!BACKEND->handle) {
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| 389 | failf(data, "SSL: couldn't create a context (handle)!");
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| 390 | return CURLE_OUT_OF_MEMORY;
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| 391 | }
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| 392 |
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| 393 | #ifdef HAVE_ALPN
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| 394 | if(conn->bits.tls_enable_alpn) {
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---|
| 395 | char protocols[128];
|
---|
| 396 | *protocols = '\0';
|
---|
| 397 |
|
---|
| 398 | /* wolfSSL's ALPN protocol name list format is a comma separated string of
|
---|
| 399 | protocols in descending order of preference, eg: "h2,http/1.1" */
|
---|
| 400 |
|
---|
| 401 | #ifdef USE_NGHTTP2
|
---|
| 402 | if(data->set.httpversion >= CURL_HTTP_VERSION_2) {
|
---|
| 403 | strcpy(protocols + strlen(protocols), NGHTTP2_PROTO_VERSION_ID ",");
|
---|
| 404 | infof(data, "ALPN, offering %s\n", NGHTTP2_PROTO_VERSION_ID);
|
---|
| 405 | }
|
---|
| 406 | #endif
|
---|
| 407 |
|
---|
| 408 | strcpy(protocols + strlen(protocols), ALPN_HTTP_1_1);
|
---|
| 409 | infof(data, "ALPN, offering %s\n", ALPN_HTTP_1_1);
|
---|
| 410 |
|
---|
| 411 | if(wolfSSL_UseALPN(BACKEND->handle, protocols,
|
---|
| 412 | (unsigned)strlen(protocols),
|
---|
| 413 | WOLFSSL_ALPN_CONTINUE_ON_MISMATCH) != SSL_SUCCESS) {
|
---|
| 414 | failf(data, "SSL: failed setting ALPN protocols");
|
---|
| 415 | return CURLE_SSL_CONNECT_ERROR;
|
---|
| 416 | }
|
---|
| 417 | }
|
---|
| 418 | #endif /* HAVE_ALPN */
|
---|
| 419 |
|
---|
| 420 | /* Check if there's a cached ID we can/should use here! */
|
---|
| 421 | if(SSL_SET_OPTION(primary.sessionid)) {
|
---|
| 422 | void *ssl_sessionid = NULL;
|
---|
| 423 |
|
---|
| 424 | Curl_ssl_sessionid_lock(conn);
|
---|
| 425 | if(!Curl_ssl_getsessionid(conn, &ssl_sessionid, NULL, sockindex)) {
|
---|
| 426 | /* we got a session id, use it! */
|
---|
| 427 | if(!SSL_set_session(BACKEND->handle, ssl_sessionid)) {
|
---|
| 428 | Curl_ssl_sessionid_unlock(conn);
|
---|
| 429 | failf(data, "SSL: SSL_set_session failed: %s",
|
---|
| 430 | ERR_error_string(SSL_get_error(BACKEND->handle, 0),
|
---|
| 431 | error_buffer));
|
---|
| 432 | return CURLE_SSL_CONNECT_ERROR;
|
---|
| 433 | }
|
---|
| 434 | /* Informational message */
|
---|
| 435 | infof(data, "SSL re-using session ID\n");
|
---|
| 436 | }
|
---|
| 437 | Curl_ssl_sessionid_unlock(conn);
|
---|
| 438 | }
|
---|
| 439 |
|
---|
| 440 | /* pass the raw socket into the SSL layer */
|
---|
| 441 | if(!SSL_set_fd(BACKEND->handle, (int)sockfd)) {
|
---|
| 442 | failf(data, "SSL: SSL_set_fd failed");
|
---|
| 443 | return CURLE_SSL_CONNECT_ERROR;
|
---|
| 444 | }
|
---|
| 445 |
|
---|
| 446 | connssl->connecting_state = ssl_connect_2;
|
---|
| 447 | return CURLE_OK;
|
---|
| 448 | }
|
---|
| 449 |
|
---|
| 450 |
|
---|
| 451 | static CURLcode
|
---|
| 452 | cyassl_connect_step2(struct connectdata *conn,
|
---|
| 453 | int sockindex)
|
---|
| 454 | {
|
---|
| 455 | int ret = -1;
|
---|
| 456 | struct Curl_easy *data = conn->data;
|
---|
| 457 | struct ssl_connect_data* connssl = &conn->ssl[sockindex];
|
---|
| 458 | const char * const hostname = SSL_IS_PROXY() ? conn->http_proxy.host.name :
|
---|
| 459 | conn->host.name;
|
---|
| 460 | const char * const dispname = SSL_IS_PROXY() ?
|
---|
| 461 | conn->http_proxy.host.dispname : conn->host.dispname;
|
---|
| 462 | const char * const pinnedpubkey = SSL_IS_PROXY() ?
|
---|
| 463 | data->set.str[STRING_SSL_PINNEDPUBLICKEY_PROXY] :
|
---|
| 464 | data->set.str[STRING_SSL_PINNEDPUBLICKEY_ORIG];
|
---|
| 465 |
|
---|
| 466 | conn->recv[sockindex] = cyassl_recv;
|
---|
| 467 | conn->send[sockindex] = cyassl_send;
|
---|
| 468 |
|
---|
| 469 | /* Enable RFC2818 checks */
|
---|
| 470 | if(SSL_CONN_CONFIG(verifyhost)) {
|
---|
| 471 | ret = CyaSSL_check_domain_name(BACKEND->handle, hostname);
|
---|
| 472 | if(ret == SSL_FAILURE)
|
---|
| 473 | return CURLE_OUT_OF_MEMORY;
|
---|
| 474 | }
|
---|
| 475 |
|
---|
| 476 | ret = SSL_connect(BACKEND->handle);
|
---|
| 477 | if(ret != 1) {
|
---|
| 478 | char error_buffer[CYASSL_MAX_ERROR_SZ];
|
---|
| 479 | int detail = SSL_get_error(BACKEND->handle, ret);
|
---|
| 480 |
|
---|
| 481 | if(SSL_ERROR_WANT_READ == detail) {
|
---|
| 482 | connssl->connecting_state = ssl_connect_2_reading;
|
---|
| 483 | return CURLE_OK;
|
---|
| 484 | }
|
---|
| 485 | else if(SSL_ERROR_WANT_WRITE == detail) {
|
---|
| 486 | connssl->connecting_state = ssl_connect_2_writing;
|
---|
| 487 | return CURLE_OK;
|
---|
| 488 | }
|
---|
| 489 | /* There is no easy way to override only the CN matching.
|
---|
| 490 | * This will enable the override of both mismatching SubjectAltNames
|
---|
| 491 | * as also mismatching CN fields */
|
---|
| 492 | else if(DOMAIN_NAME_MISMATCH == detail) {
|
---|
| 493 | #if 1
|
---|
| 494 | failf(data, "\tsubject alt name(s) or common name do not match \"%s\"\n",
|
---|
| 495 | dispname);
|
---|
| 496 | return CURLE_PEER_FAILED_VERIFICATION;
|
---|
| 497 | #else
|
---|
| 498 | /* When the CyaSSL_check_domain_name() is used and you desire to continue
|
---|
| 499 | * on a DOMAIN_NAME_MISMATCH, i.e. 'conn->ssl_config.verifyhost == 0',
|
---|
| 500 | * CyaSSL version 2.4.0 will fail with an INCOMPLETE_DATA error. The only
|
---|
| 501 | * way to do this is currently to switch the CyaSSL_check_domain_name()
|
---|
| 502 | * in and out based on the 'conn->ssl_config.verifyhost' value. */
|
---|
| 503 | if(SSL_CONN_CONFIG(verifyhost)) {
|
---|
| 504 | failf(data,
|
---|
| 505 | "\tsubject alt name(s) or common name do not match \"%s\"\n",
|
---|
| 506 | dispname);
|
---|
| 507 | return CURLE_PEER_FAILED_VERIFICATION;
|
---|
| 508 | }
|
---|
| 509 | else {
|
---|
| 510 | infof(data,
|
---|
| 511 | "\tsubject alt name(s) and/or common name do not match \"%s\"\n",
|
---|
| 512 | dispname);
|
---|
| 513 | return CURLE_OK;
|
---|
| 514 | }
|
---|
| 515 | #endif
|
---|
| 516 | }
|
---|
| 517 | #if LIBCYASSL_VERSION_HEX >= 0x02007000 /* 2.7.0 */
|
---|
| 518 | else if(ASN_NO_SIGNER_E == detail) {
|
---|
| 519 | if(SSL_CONN_CONFIG(verifypeer)) {
|
---|
| 520 | failf(data, "\tCA signer not available for verification\n");
|
---|
| 521 | return CURLE_SSL_CACERT_BADFILE;
|
---|
| 522 | }
|
---|
| 523 | else {
|
---|
| 524 | /* Just continue with a warning if no strict certificate
|
---|
| 525 | verification is required. */
|
---|
| 526 | infof(data, "CA signer not available for verification, "
|
---|
| 527 | "continuing anyway\n");
|
---|
| 528 | }
|
---|
| 529 | }
|
---|
| 530 | #endif
|
---|
| 531 | else {
|
---|
| 532 | failf(data, "SSL_connect failed with error %d: %s", detail,
|
---|
| 533 | ERR_error_string(detail, error_buffer));
|
---|
| 534 | return CURLE_SSL_CONNECT_ERROR;
|
---|
| 535 | }
|
---|
| 536 | }
|
---|
| 537 |
|
---|
| 538 | if(pinnedpubkey) {
|
---|
| 539 | #ifdef KEEP_PEER_CERT
|
---|
| 540 | X509 *x509;
|
---|
| 541 | const char *x509_der;
|
---|
| 542 | int x509_der_len;
|
---|
| 543 | curl_X509certificate x509_parsed;
|
---|
| 544 | curl_asn1Element *pubkey;
|
---|
| 545 | CURLcode result;
|
---|
| 546 |
|
---|
| 547 | x509 = SSL_get_peer_certificate(BACKEND->handle);
|
---|
| 548 | if(!x509) {
|
---|
| 549 | failf(data, "SSL: failed retrieving server certificate");
|
---|
| 550 | return CURLE_SSL_PINNEDPUBKEYNOTMATCH;
|
---|
| 551 | }
|
---|
| 552 |
|
---|
| 553 | x509_der = (const char *)CyaSSL_X509_get_der(x509, &x509_der_len);
|
---|
| 554 | if(!x509_der) {
|
---|
| 555 | failf(data, "SSL: failed retrieving ASN.1 server certificate");
|
---|
| 556 | return CURLE_SSL_PINNEDPUBKEYNOTMATCH;
|
---|
| 557 | }
|
---|
| 558 |
|
---|
| 559 | memset(&x509_parsed, 0, sizeof x509_parsed);
|
---|
| 560 | if(Curl_parseX509(&x509_parsed, x509_der, x509_der + x509_der_len))
|
---|
| 561 | return CURLE_SSL_PINNEDPUBKEYNOTMATCH;
|
---|
| 562 |
|
---|
| 563 | pubkey = &x509_parsed.subjectPublicKeyInfo;
|
---|
| 564 | if(!pubkey->header || pubkey->end <= pubkey->header) {
|
---|
| 565 | failf(data, "SSL: failed retrieving public key from server certificate");
|
---|
| 566 | return CURLE_SSL_PINNEDPUBKEYNOTMATCH;
|
---|
| 567 | }
|
---|
| 568 |
|
---|
| 569 | result = Curl_pin_peer_pubkey(data,
|
---|
| 570 | pinnedpubkey,
|
---|
| 571 | (const unsigned char *)pubkey->header,
|
---|
| 572 | (size_t)(pubkey->end - pubkey->header));
|
---|
| 573 | if(result) {
|
---|
| 574 | failf(data, "SSL: public key does not match pinned public key!");
|
---|
| 575 | return result;
|
---|
| 576 | }
|
---|
| 577 | #else
|
---|
| 578 | failf(data, "Library lacks pinning support built-in");
|
---|
| 579 | return CURLE_NOT_BUILT_IN;
|
---|
| 580 | #endif
|
---|
| 581 | }
|
---|
| 582 |
|
---|
| 583 | #ifdef HAVE_ALPN
|
---|
| 584 | if(conn->bits.tls_enable_alpn) {
|
---|
| 585 | int rc;
|
---|
| 586 | char *protocol = NULL;
|
---|
| 587 | unsigned short protocol_len = 0;
|
---|
| 588 |
|
---|
| 589 | rc = wolfSSL_ALPN_GetProtocol(BACKEND->handle, &protocol, &protocol_len);
|
---|
| 590 |
|
---|
| 591 | if(rc == SSL_SUCCESS) {
|
---|
| 592 | infof(data, "ALPN, server accepted to use %.*s\n", protocol_len,
|
---|
| 593 | protocol);
|
---|
| 594 |
|
---|
| 595 | if(protocol_len == ALPN_HTTP_1_1_LENGTH &&
|
---|
| 596 | !memcmp(protocol, ALPN_HTTP_1_1, ALPN_HTTP_1_1_LENGTH))
|
---|
| 597 | conn->negnpn = CURL_HTTP_VERSION_1_1;
|
---|
| 598 | #ifdef USE_NGHTTP2
|
---|
| 599 | else if(data->set.httpversion >= CURL_HTTP_VERSION_2 &&
|
---|
| 600 | protocol_len == NGHTTP2_PROTO_VERSION_ID_LEN &&
|
---|
| 601 | !memcmp(protocol, NGHTTP2_PROTO_VERSION_ID,
|
---|
| 602 | NGHTTP2_PROTO_VERSION_ID_LEN))
|
---|
| 603 | conn->negnpn = CURL_HTTP_VERSION_2;
|
---|
| 604 | #endif
|
---|
| 605 | else
|
---|
| 606 | infof(data, "ALPN, unrecognized protocol %.*s\n", protocol_len,
|
---|
| 607 | protocol);
|
---|
| 608 | }
|
---|
| 609 | else if(rc == SSL_ALPN_NOT_FOUND)
|
---|
| 610 | infof(data, "ALPN, server did not agree to a protocol\n");
|
---|
| 611 | else {
|
---|
| 612 | failf(data, "ALPN, failure getting protocol, error %d", rc);
|
---|
| 613 | return CURLE_SSL_CONNECT_ERROR;
|
---|
| 614 | }
|
---|
| 615 | }
|
---|
| 616 | #endif /* HAVE_ALPN */
|
---|
| 617 |
|
---|
| 618 | connssl->connecting_state = ssl_connect_3;
|
---|
| 619 | #if (LIBCYASSL_VERSION_HEX >= 0x03009010)
|
---|
| 620 | infof(data, "SSL connection using %s / %s\n",
|
---|
| 621 | wolfSSL_get_version(BACKEND->handle),
|
---|
| 622 | wolfSSL_get_cipher_name(BACKEND->handle));
|
---|
| 623 | #else
|
---|
| 624 | infof(data, "SSL connected\n");
|
---|
| 625 | #endif
|
---|
| 626 |
|
---|
| 627 | return CURLE_OK;
|
---|
| 628 | }
|
---|
| 629 |
|
---|
| 630 |
|
---|
| 631 | static CURLcode
|
---|
| 632 | cyassl_connect_step3(struct connectdata *conn,
|
---|
| 633 | int sockindex)
|
---|
| 634 | {
|
---|
| 635 | CURLcode result = CURLE_OK;
|
---|
| 636 | struct Curl_easy *data = conn->data;
|
---|
| 637 | struct ssl_connect_data *connssl = &conn->ssl[sockindex];
|
---|
| 638 |
|
---|
| 639 | DEBUGASSERT(ssl_connect_3 == connssl->connecting_state);
|
---|
| 640 |
|
---|
| 641 | if(SSL_SET_OPTION(primary.sessionid)) {
|
---|
| 642 | bool incache;
|
---|
| 643 | SSL_SESSION *our_ssl_sessionid;
|
---|
| 644 | void *old_ssl_sessionid = NULL;
|
---|
| 645 |
|
---|
| 646 | our_ssl_sessionid = SSL_get_session(BACKEND->handle);
|
---|
| 647 |
|
---|
| 648 | Curl_ssl_sessionid_lock(conn);
|
---|
| 649 | incache = !(Curl_ssl_getsessionid(conn, &old_ssl_sessionid, NULL,
|
---|
| 650 | sockindex));
|
---|
| 651 | if(incache) {
|
---|
| 652 | if(old_ssl_sessionid != our_ssl_sessionid) {
|
---|
| 653 | infof(data, "old SSL session ID is stale, removing\n");
|
---|
| 654 | Curl_ssl_delsessionid(conn, old_ssl_sessionid);
|
---|
| 655 | incache = FALSE;
|
---|
| 656 | }
|
---|
| 657 | }
|
---|
| 658 |
|
---|
| 659 | if(!incache) {
|
---|
| 660 | result = Curl_ssl_addsessionid(conn, our_ssl_sessionid,
|
---|
| 661 | 0 /* unknown size */, sockindex);
|
---|
| 662 | if(result) {
|
---|
| 663 | Curl_ssl_sessionid_unlock(conn);
|
---|
| 664 | failf(data, "failed to store ssl session");
|
---|
| 665 | return result;
|
---|
| 666 | }
|
---|
| 667 | }
|
---|
| 668 | Curl_ssl_sessionid_unlock(conn);
|
---|
| 669 | }
|
---|
| 670 |
|
---|
| 671 | connssl->connecting_state = ssl_connect_done;
|
---|
| 672 |
|
---|
| 673 | return result;
|
---|
| 674 | }
|
---|
| 675 |
|
---|
| 676 |
|
---|
| 677 | static ssize_t cyassl_send(struct connectdata *conn,
|
---|
| 678 | int sockindex,
|
---|
| 679 | const void *mem,
|
---|
| 680 | size_t len,
|
---|
| 681 | CURLcode *curlcode)
|
---|
| 682 | {
|
---|
| 683 | struct ssl_connect_data *connssl = &conn->ssl[sockindex];
|
---|
| 684 | char error_buffer[CYASSL_MAX_ERROR_SZ];
|
---|
| 685 | int memlen = (len > (size_t)INT_MAX) ? INT_MAX : (int)len;
|
---|
| 686 | int rc = SSL_write(BACKEND->handle, mem, memlen);
|
---|
| 687 |
|
---|
| 688 | if(rc < 0) {
|
---|
| 689 | int err = SSL_get_error(BACKEND->handle, rc);
|
---|
| 690 |
|
---|
| 691 | switch(err) {
|
---|
| 692 | case SSL_ERROR_WANT_READ:
|
---|
| 693 | case SSL_ERROR_WANT_WRITE:
|
---|
| 694 | /* there's data pending, re-invoke SSL_write() */
|
---|
| 695 | *curlcode = CURLE_AGAIN;
|
---|
| 696 | return -1;
|
---|
| 697 | default:
|
---|
| 698 | failf(conn->data, "SSL write: %s, errno %d",
|
---|
| 699 | ERR_error_string(err, error_buffer),
|
---|
| 700 | SOCKERRNO);
|
---|
| 701 | *curlcode = CURLE_SEND_ERROR;
|
---|
| 702 | return -1;
|
---|
| 703 | }
|
---|
| 704 | }
|
---|
| 705 | return rc;
|
---|
| 706 | }
|
---|
| 707 |
|
---|
| 708 | static void Curl_cyassl_close(struct connectdata *conn, int sockindex)
|
---|
| 709 | {
|
---|
| 710 | struct ssl_connect_data *connssl = &conn->ssl[sockindex];
|
---|
| 711 |
|
---|
| 712 | if(BACKEND->handle) {
|
---|
| 713 | (void)SSL_shutdown(BACKEND->handle);
|
---|
| 714 | SSL_free(BACKEND->handle);
|
---|
| 715 | BACKEND->handle = NULL;
|
---|
| 716 | }
|
---|
| 717 | if(BACKEND->ctx) {
|
---|
| 718 | SSL_CTX_free(BACKEND->ctx);
|
---|
| 719 | BACKEND->ctx = NULL;
|
---|
| 720 | }
|
---|
| 721 | }
|
---|
| 722 |
|
---|
| 723 | static ssize_t cyassl_recv(struct connectdata *conn,
|
---|
| 724 | int num,
|
---|
| 725 | char *buf,
|
---|
| 726 | size_t buffersize,
|
---|
| 727 | CURLcode *curlcode)
|
---|
| 728 | {
|
---|
| 729 | struct ssl_connect_data *connssl = &conn->ssl[num];
|
---|
| 730 | char error_buffer[CYASSL_MAX_ERROR_SZ];
|
---|
| 731 | int buffsize = (buffersize > (size_t)INT_MAX) ? INT_MAX : (int)buffersize;
|
---|
| 732 | int nread = SSL_read(BACKEND->handle, buf, buffsize);
|
---|
| 733 |
|
---|
| 734 | if(nread < 0) {
|
---|
| 735 | int err = SSL_get_error(BACKEND->handle, nread);
|
---|
| 736 |
|
---|
| 737 | switch(err) {
|
---|
| 738 | case SSL_ERROR_ZERO_RETURN: /* no more data */
|
---|
| 739 | break;
|
---|
| 740 | case SSL_ERROR_WANT_READ:
|
---|
| 741 | case SSL_ERROR_WANT_WRITE:
|
---|
| 742 | /* there's data pending, re-invoke SSL_read() */
|
---|
| 743 | *curlcode = CURLE_AGAIN;
|
---|
| 744 | return -1;
|
---|
| 745 | default:
|
---|
| 746 | failf(conn->data, "SSL read: %s, errno %d",
|
---|
| 747 | ERR_error_string(err, error_buffer),
|
---|
| 748 | SOCKERRNO);
|
---|
| 749 | *curlcode = CURLE_RECV_ERROR;
|
---|
| 750 | return -1;
|
---|
| 751 | }
|
---|
| 752 | }
|
---|
| 753 | return nread;
|
---|
| 754 | }
|
---|
| 755 |
|
---|
| 756 |
|
---|
| 757 | static void Curl_cyassl_session_free(void *ptr)
|
---|
| 758 | {
|
---|
| 759 | (void)ptr;
|
---|
| 760 | /* CyaSSL reuses sessions on own, no free */
|
---|
| 761 | }
|
---|
| 762 |
|
---|
| 763 |
|
---|
| 764 | static size_t Curl_cyassl_version(char *buffer, size_t size)
|
---|
| 765 | {
|
---|
| 766 | #if LIBCYASSL_VERSION_HEX >= 0x03006000
|
---|
| 767 | return snprintf(buffer, size, "wolfSSL/%s", wolfSSL_lib_version());
|
---|
| 768 | #elif defined(WOLFSSL_VERSION)
|
---|
| 769 | return snprintf(buffer, size, "wolfSSL/%s", WOLFSSL_VERSION);
|
---|
| 770 | #elif defined(CYASSL_VERSION)
|
---|
| 771 | return snprintf(buffer, size, "CyaSSL/%s", CYASSL_VERSION);
|
---|
| 772 | #else
|
---|
| 773 | return snprintf(buffer, size, "CyaSSL/%s", "<1.8.8");
|
---|
| 774 | #endif
|
---|
| 775 | }
|
---|
| 776 |
|
---|
| 777 |
|
---|
| 778 | static int Curl_cyassl_init(void)
|
---|
| 779 | {
|
---|
| 780 | return (CyaSSL_Init() == SSL_SUCCESS);
|
---|
| 781 | }
|
---|
| 782 |
|
---|
| 783 |
|
---|
| 784 | static bool Curl_cyassl_data_pending(const struct connectdata* conn,
|
---|
| 785 | int connindex)
|
---|
| 786 | {
|
---|
| 787 | const struct ssl_connect_data *connssl = &conn->ssl[connindex];
|
---|
| 788 | if(BACKEND->handle) /* SSL is in use */
|
---|
| 789 | return (0 != SSL_pending(BACKEND->handle)) ? TRUE : FALSE;
|
---|
| 790 | else
|
---|
| 791 | return FALSE;
|
---|
| 792 | }
|
---|
| 793 |
|
---|
| 794 |
|
---|
| 795 | /*
|
---|
| 796 | * This function is called to shut down the SSL layer but keep the
|
---|
| 797 | * socket open (CCC - Clear Command Channel)
|
---|
| 798 | */
|
---|
| 799 | static int Curl_cyassl_shutdown(struct connectdata *conn, int sockindex)
|
---|
| 800 | {
|
---|
| 801 | int retval = 0;
|
---|
| 802 | struct ssl_connect_data *connssl = &conn->ssl[sockindex];
|
---|
| 803 |
|
---|
| 804 | if(BACKEND->handle) {
|
---|
| 805 | SSL_free(BACKEND->handle);
|
---|
| 806 | BACKEND->handle = NULL;
|
---|
| 807 | }
|
---|
| 808 | return retval;
|
---|
| 809 | }
|
---|
| 810 |
|
---|
| 811 |
|
---|
| 812 | static CURLcode
|
---|
| 813 | cyassl_connect_common(struct connectdata *conn,
|
---|
| 814 | int sockindex,
|
---|
| 815 | bool nonblocking,
|
---|
| 816 | bool *done)
|
---|
| 817 | {
|
---|
| 818 | CURLcode result;
|
---|
| 819 | struct Curl_easy *data = conn->data;
|
---|
| 820 | struct ssl_connect_data *connssl = &conn->ssl[sockindex];
|
---|
| 821 | curl_socket_t sockfd = conn->sock[sockindex];
|
---|
| 822 | time_t timeout_ms;
|
---|
| 823 | int what;
|
---|
| 824 |
|
---|
| 825 | /* check if the connection has already been established */
|
---|
| 826 | if(ssl_connection_complete == connssl->state) {
|
---|
| 827 | *done = TRUE;
|
---|
| 828 | return CURLE_OK;
|
---|
| 829 | }
|
---|
| 830 |
|
---|
| 831 | if(ssl_connect_1 == connssl->connecting_state) {
|
---|
| 832 | /* Find out how much more time we're allowed */
|
---|
| 833 | timeout_ms = Curl_timeleft(data, NULL, TRUE);
|
---|
| 834 |
|
---|
| 835 | if(timeout_ms < 0) {
|
---|
| 836 | /* no need to continue if time already is up */
|
---|
| 837 | failf(data, "SSL connection timeout");
|
---|
| 838 | return CURLE_OPERATION_TIMEDOUT;
|
---|
| 839 | }
|
---|
| 840 |
|
---|
| 841 | result = cyassl_connect_step1(conn, sockindex);
|
---|
| 842 | if(result)
|
---|
| 843 | return result;
|
---|
| 844 | }
|
---|
| 845 |
|
---|
| 846 | while(ssl_connect_2 == connssl->connecting_state ||
|
---|
| 847 | ssl_connect_2_reading == connssl->connecting_state ||
|
---|
| 848 | ssl_connect_2_writing == connssl->connecting_state) {
|
---|
| 849 |
|
---|
| 850 | /* check allowed time left */
|
---|
| 851 | timeout_ms = Curl_timeleft(data, NULL, TRUE);
|
---|
| 852 |
|
---|
| 853 | if(timeout_ms < 0) {
|
---|
| 854 | /* no need to continue if time already is up */
|
---|
| 855 | failf(data, "SSL connection timeout");
|
---|
| 856 | return CURLE_OPERATION_TIMEDOUT;
|
---|
| 857 | }
|
---|
| 858 |
|
---|
| 859 | /* if ssl is expecting something, check if it's available. */
|
---|
| 860 | if(connssl->connecting_state == ssl_connect_2_reading
|
---|
| 861 | || connssl->connecting_state == ssl_connect_2_writing) {
|
---|
| 862 |
|
---|
| 863 | curl_socket_t writefd = ssl_connect_2_writing ==
|
---|
| 864 | connssl->connecting_state?sockfd:CURL_SOCKET_BAD;
|
---|
| 865 | curl_socket_t readfd = ssl_connect_2_reading ==
|
---|
| 866 | connssl->connecting_state?sockfd:CURL_SOCKET_BAD;
|
---|
| 867 |
|
---|
| 868 | what = Curl_socket_check(readfd, CURL_SOCKET_BAD, writefd,
|
---|
| 869 | nonblocking?0:timeout_ms);
|
---|
| 870 | if(what < 0) {
|
---|
| 871 | /* fatal error */
|
---|
| 872 | failf(data, "select/poll on SSL socket, errno: %d", SOCKERRNO);
|
---|
| 873 | return CURLE_SSL_CONNECT_ERROR;
|
---|
| 874 | }
|
---|
| 875 | else if(0 == what) {
|
---|
| 876 | if(nonblocking) {
|
---|
| 877 | *done = FALSE;
|
---|
| 878 | return CURLE_OK;
|
---|
| 879 | }
|
---|
| 880 | else {
|
---|
| 881 | /* timeout */
|
---|
| 882 | failf(data, "SSL connection timeout");
|
---|
| 883 | return CURLE_OPERATION_TIMEDOUT;
|
---|
| 884 | }
|
---|
| 885 | }
|
---|
| 886 | /* socket is readable or writable */
|
---|
| 887 | }
|
---|
| 888 |
|
---|
| 889 | /* Run transaction, and return to the caller if it failed or if
|
---|
| 890 | * this connection is part of a multi handle and this loop would
|
---|
| 891 | * execute again. This permits the owner of a multi handle to
|
---|
| 892 | * abort a connection attempt before step2 has completed while
|
---|
| 893 | * ensuring that a client using select() or epoll() will always
|
---|
| 894 | * have a valid fdset to wait on.
|
---|
| 895 | */
|
---|
| 896 | result = cyassl_connect_step2(conn, sockindex);
|
---|
| 897 | if(result || (nonblocking &&
|
---|
| 898 | (ssl_connect_2 == connssl->connecting_state ||
|
---|
| 899 | ssl_connect_2_reading == connssl->connecting_state ||
|
---|
| 900 | ssl_connect_2_writing == connssl->connecting_state)))
|
---|
| 901 | return result;
|
---|
| 902 | } /* repeat step2 until all transactions are done. */
|
---|
| 903 |
|
---|
| 904 | if(ssl_connect_3 == connssl->connecting_state) {
|
---|
| 905 | result = cyassl_connect_step3(conn, sockindex);
|
---|
| 906 | if(result)
|
---|
| 907 | return result;
|
---|
| 908 | }
|
---|
| 909 |
|
---|
| 910 | if(ssl_connect_done == connssl->connecting_state) {
|
---|
| 911 | connssl->state = ssl_connection_complete;
|
---|
| 912 | conn->recv[sockindex] = cyassl_recv;
|
---|
| 913 | conn->send[sockindex] = cyassl_send;
|
---|
| 914 | *done = TRUE;
|
---|
| 915 | }
|
---|
| 916 | else
|
---|
| 917 | *done = FALSE;
|
---|
| 918 |
|
---|
| 919 | /* Reset our connect state machine */
|
---|
| 920 | connssl->connecting_state = ssl_connect_1;
|
---|
| 921 |
|
---|
| 922 | return CURLE_OK;
|
---|
| 923 | }
|
---|
| 924 |
|
---|
| 925 |
|
---|
| 926 | static CURLcode Curl_cyassl_connect_nonblocking(struct connectdata *conn,
|
---|
| 927 | int sockindex, bool *done)
|
---|
| 928 | {
|
---|
| 929 | return cyassl_connect_common(conn, sockindex, TRUE, done);
|
---|
| 930 | }
|
---|
| 931 |
|
---|
| 932 |
|
---|
| 933 | static CURLcode Curl_cyassl_connect(struct connectdata *conn, int sockindex)
|
---|
| 934 | {
|
---|
| 935 | CURLcode result;
|
---|
| 936 | bool done = FALSE;
|
---|
| 937 |
|
---|
| 938 | result = cyassl_connect_common(conn, sockindex, FALSE, &done);
|
---|
| 939 | if(result)
|
---|
| 940 | return result;
|
---|
| 941 |
|
---|
| 942 | DEBUGASSERT(done);
|
---|
| 943 |
|
---|
| 944 | return CURLE_OK;
|
---|
| 945 | }
|
---|
| 946 |
|
---|
| 947 | static CURLcode Curl_cyassl_random(struct Curl_easy *data,
|
---|
| 948 | unsigned char *entropy, size_t length)
|
---|
| 949 | {
|
---|
| 950 | RNG rng;
|
---|
| 951 | (void)data;
|
---|
| 952 | if(InitRng(&rng))
|
---|
| 953 | return CURLE_FAILED_INIT;
|
---|
| 954 | if(length > UINT_MAX)
|
---|
| 955 | return CURLE_FAILED_INIT;
|
---|
| 956 | if(RNG_GenerateBlock(&rng, entropy, (unsigned)length))
|
---|
| 957 | return CURLE_FAILED_INIT;
|
---|
| 958 | return CURLE_OK;
|
---|
| 959 | }
|
---|
| 960 |
|
---|
| 961 | static void Curl_cyassl_sha256sum(const unsigned char *tmp, /* input */
|
---|
| 962 | size_t tmplen,
|
---|
| 963 | unsigned char *sha256sum /* output */,
|
---|
| 964 | size_t unused)
|
---|
| 965 | {
|
---|
| 966 | Sha256 SHA256pw;
|
---|
| 967 | (void)unused;
|
---|
| 968 | InitSha256(&SHA256pw);
|
---|
| 969 | Sha256Update(&SHA256pw, tmp, (word32)tmplen);
|
---|
| 970 | Sha256Final(&SHA256pw, sha256sum);
|
---|
| 971 | }
|
---|
| 972 |
|
---|
| 973 | static void *Curl_cyassl_get_internals(struct ssl_connect_data *connssl,
|
---|
| 974 | CURLINFO info UNUSED_PARAM)
|
---|
| 975 | {
|
---|
| 976 | (void)info;
|
---|
| 977 | return BACKEND->handle;
|
---|
| 978 | }
|
---|
| 979 |
|
---|
| 980 | const struct Curl_ssl Curl_ssl_cyassl = {
|
---|
| 981 | { CURLSSLBACKEND_WOLFSSL, "WolfSSL" }, /* info */
|
---|
| 982 |
|
---|
| 983 | 0, /* have_ca_path */
|
---|
| 984 | 0, /* have_certinfo */
|
---|
| 985 | #ifdef KEEP_PEER_CERT
|
---|
| 986 | 1, /* have_pinnedpubkey */
|
---|
| 987 | #else
|
---|
| 988 | 0, /* have_pinnedpubkey */
|
---|
| 989 | #endif
|
---|
| 990 | 1, /* have_ssl_ctx */
|
---|
| 991 | 0, /* support_https_proxy */
|
---|
| 992 |
|
---|
| 993 | sizeof(struct ssl_backend_data),
|
---|
| 994 |
|
---|
| 995 | Curl_cyassl_init, /* init */
|
---|
| 996 | Curl_none_cleanup, /* cleanup */
|
---|
| 997 | Curl_cyassl_version, /* version */
|
---|
| 998 | Curl_none_check_cxn, /* check_cxn */
|
---|
| 999 | Curl_cyassl_shutdown, /* shutdown */
|
---|
| 1000 | Curl_cyassl_data_pending, /* data_pending */
|
---|
| 1001 | Curl_cyassl_random, /* random */
|
---|
| 1002 | Curl_none_cert_status_request, /* cert_status_request */
|
---|
| 1003 | Curl_cyassl_connect, /* connect */
|
---|
| 1004 | Curl_cyassl_connect_nonblocking, /* connect_nonblocking */
|
---|
| 1005 | Curl_cyassl_get_internals, /* get_internals */
|
---|
| 1006 | Curl_cyassl_close, /* close_one */
|
---|
| 1007 | Curl_none_close_all, /* close_all */
|
---|
| 1008 | Curl_cyassl_session_free, /* session_free */
|
---|
| 1009 | Curl_none_set_engine, /* set_engine */
|
---|
| 1010 | Curl_none_set_engine_default, /* set_engine_default */
|
---|
| 1011 | Curl_none_engines_list, /* engines_list */
|
---|
| 1012 | Curl_none_false_start, /* false_start */
|
---|
| 1013 | Curl_none_md5sum, /* md5sum */
|
---|
| 1014 | Curl_cyassl_sha256sum /* sha256sum */
|
---|
| 1015 | };
|
---|
| 1016 |
|
---|
| 1017 | #endif
|
---|