Reem M
/
http-server-example1
http
mbed-http/source/tls_socket.h@1:ce6ccd14af4c, 2019-04-15 (annotated)
- Committer:
- reeml3
- Date:
- Mon Apr 15 18:12:24 2019 +0000
- Revision:
- 1:ce6ccd14af4c
- Parent:
- 0:a49e37a83a7a
http
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
DuaaAbusharkh | 0:a49e37a83a7a | 1 | /* |
DuaaAbusharkh | 0:a49e37a83a7a | 2 | * PackageLicenseDeclared: Apache-2.0 |
DuaaAbusharkh | 0:a49e37a83a7a | 3 | * Copyright (c) 2017 ARM Limited |
DuaaAbusharkh | 0:a49e37a83a7a | 4 | * |
DuaaAbusharkh | 0:a49e37a83a7a | 5 | * Licensed under the Apache License, Version 2.0 (the "License"); |
DuaaAbusharkh | 0:a49e37a83a7a | 6 | * you may not use this file except in compliance with the License. |
DuaaAbusharkh | 0:a49e37a83a7a | 7 | * You may obtain a copy of the License at |
DuaaAbusharkh | 0:a49e37a83a7a | 8 | * |
DuaaAbusharkh | 0:a49e37a83a7a | 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
DuaaAbusharkh | 0:a49e37a83a7a | 10 | * |
DuaaAbusharkh | 0:a49e37a83a7a | 11 | * Unless required by applicable law or agreed to in writing, software |
DuaaAbusharkh | 0:a49e37a83a7a | 12 | * distributed under the License is distributed on an "AS IS" BASIS, |
DuaaAbusharkh | 0:a49e37a83a7a | 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
DuaaAbusharkh | 0:a49e37a83a7a | 14 | * See the License for the specific language governing permissions and |
DuaaAbusharkh | 0:a49e37a83a7a | 15 | * limitations under the License. |
DuaaAbusharkh | 0:a49e37a83a7a | 16 | */ |
DuaaAbusharkh | 0:a49e37a83a7a | 17 | |
DuaaAbusharkh | 0:a49e37a83a7a | 18 | #ifndef _MBED_HTTPS_TLS_SOCKET_H_ |
DuaaAbusharkh | 0:a49e37a83a7a | 19 | #define _MBED_HTTPS_TLS_SOCKET_H_ |
DuaaAbusharkh | 0:a49e37a83a7a | 20 | |
DuaaAbusharkh | 0:a49e37a83a7a | 21 | /* Change to a number between 1 and 4 to debug the TLS connection */ |
DuaaAbusharkh | 0:a49e37a83a7a | 22 | #define DEBUG_LEVEL 0 |
DuaaAbusharkh | 0:a49e37a83a7a | 23 | |
DuaaAbusharkh | 0:a49e37a83a7a | 24 | #include <string> |
DuaaAbusharkh | 0:a49e37a83a7a | 25 | #include <vector> |
DuaaAbusharkh | 0:a49e37a83a7a | 26 | #include <map> |
DuaaAbusharkh | 0:a49e37a83a7a | 27 | #include "http_parser.h" |
DuaaAbusharkh | 0:a49e37a83a7a | 28 | #include "http_response.h" |
DuaaAbusharkh | 0:a49e37a83a7a | 29 | #include "http_request_builder.h" |
DuaaAbusharkh | 0:a49e37a83a7a | 30 | #include "http_request_parser.h" |
DuaaAbusharkh | 0:a49e37a83a7a | 31 | #include "http_parsed_url.h" |
DuaaAbusharkh | 0:a49e37a83a7a | 32 | |
DuaaAbusharkh | 0:a49e37a83a7a | 33 | #include "mbedtls/platform.h" |
DuaaAbusharkh | 0:a49e37a83a7a | 34 | #include "mbedtls/ssl.h" |
DuaaAbusharkh | 0:a49e37a83a7a | 35 | #include "mbedtls/entropy.h" |
DuaaAbusharkh | 0:a49e37a83a7a | 36 | #include "mbedtls/ctr_drbg.h" |
DuaaAbusharkh | 0:a49e37a83a7a | 37 | #include "mbedtls/error.h" |
DuaaAbusharkh | 0:a49e37a83a7a | 38 | |
DuaaAbusharkh | 0:a49e37a83a7a | 39 | #if DEBUG_LEVEL > 0 |
DuaaAbusharkh | 0:a49e37a83a7a | 40 | #include "mbedtls/debug.h" |
DuaaAbusharkh | 0:a49e37a83a7a | 41 | #endif |
DuaaAbusharkh | 0:a49e37a83a7a | 42 | |
DuaaAbusharkh | 0:a49e37a83a7a | 43 | /** |
DuaaAbusharkh | 0:a49e37a83a7a | 44 | * \brief TLSSocket a wrapper around TCPSocket for interacting with TLS servers |
DuaaAbusharkh | 0:a49e37a83a7a | 45 | */ |
DuaaAbusharkh | 0:a49e37a83a7a | 46 | class TLSSocket { |
DuaaAbusharkh | 0:a49e37a83a7a | 47 | public: |
DuaaAbusharkh | 0:a49e37a83a7a | 48 | TLSSocket(NetworkInterface* net_iface, const char* hostname, uint16_t port, const char* ssl_ca_pem) { |
DuaaAbusharkh | 0:a49e37a83a7a | 49 | _tcpsocket = new TCPSocket(net_iface); |
DuaaAbusharkh | 0:a49e37a83a7a | 50 | _ssl_ca_pem = ssl_ca_pem; |
DuaaAbusharkh | 0:a49e37a83a7a | 51 | _is_connected = false; |
DuaaAbusharkh | 0:a49e37a83a7a | 52 | _debug = false; |
DuaaAbusharkh | 0:a49e37a83a7a | 53 | _hostname = hostname; |
DuaaAbusharkh | 0:a49e37a83a7a | 54 | _port = port; |
DuaaAbusharkh | 0:a49e37a83a7a | 55 | _error = 0; |
DuaaAbusharkh | 0:a49e37a83a7a | 56 | |
DuaaAbusharkh | 0:a49e37a83a7a | 57 | DRBG_PERS = "mbed TLS helloword client"; |
DuaaAbusharkh | 0:a49e37a83a7a | 58 | |
DuaaAbusharkh | 0:a49e37a83a7a | 59 | mbedtls_entropy_init(&_entropy); |
DuaaAbusharkh | 0:a49e37a83a7a | 60 | mbedtls_ctr_drbg_init(&_ctr_drbg); |
DuaaAbusharkh | 0:a49e37a83a7a | 61 | mbedtls_x509_crt_init(&_cacert); |
DuaaAbusharkh | 0:a49e37a83a7a | 62 | mbedtls_ssl_init(&_ssl); |
DuaaAbusharkh | 0:a49e37a83a7a | 63 | mbedtls_ssl_config_init(&_ssl_conf); |
DuaaAbusharkh | 0:a49e37a83a7a | 64 | } |
DuaaAbusharkh | 0:a49e37a83a7a | 65 | |
DuaaAbusharkh | 0:a49e37a83a7a | 66 | ~TLSSocket() { |
DuaaAbusharkh | 0:a49e37a83a7a | 67 | mbedtls_entropy_free(&_entropy); |
DuaaAbusharkh | 0:a49e37a83a7a | 68 | mbedtls_ctr_drbg_free(&_ctr_drbg); |
DuaaAbusharkh | 0:a49e37a83a7a | 69 | mbedtls_x509_crt_free(&_cacert); |
DuaaAbusharkh | 0:a49e37a83a7a | 70 | mbedtls_ssl_free(&_ssl); |
DuaaAbusharkh | 0:a49e37a83a7a | 71 | mbedtls_ssl_config_free(&_ssl_conf); |
DuaaAbusharkh | 0:a49e37a83a7a | 72 | |
DuaaAbusharkh | 0:a49e37a83a7a | 73 | if (_tcpsocket) { |
DuaaAbusharkh | 0:a49e37a83a7a | 74 | _tcpsocket->close(); |
DuaaAbusharkh | 0:a49e37a83a7a | 75 | delete _tcpsocket; |
DuaaAbusharkh | 0:a49e37a83a7a | 76 | } |
DuaaAbusharkh | 0:a49e37a83a7a | 77 | |
DuaaAbusharkh | 0:a49e37a83a7a | 78 | // @todo: free DRBG_PERS ? |
DuaaAbusharkh | 0:a49e37a83a7a | 79 | } |
DuaaAbusharkh | 0:a49e37a83a7a | 80 | |
DuaaAbusharkh | 0:a49e37a83a7a | 81 | nsapi_error_t connect() { |
DuaaAbusharkh | 0:a49e37a83a7a | 82 | /* Initialize the flags */ |
DuaaAbusharkh | 0:a49e37a83a7a | 83 | /* |
DuaaAbusharkh | 0:a49e37a83a7a | 84 | * Initialize TLS-related stuf. |
DuaaAbusharkh | 0:a49e37a83a7a | 85 | */ |
DuaaAbusharkh | 0:a49e37a83a7a | 86 | int ret; |
DuaaAbusharkh | 0:a49e37a83a7a | 87 | if ((ret = mbedtls_ctr_drbg_seed(&_ctr_drbg, mbedtls_entropy_func, &_entropy, |
DuaaAbusharkh | 0:a49e37a83a7a | 88 | (const unsigned char *) DRBG_PERS, |
DuaaAbusharkh | 0:a49e37a83a7a | 89 | sizeof (DRBG_PERS))) != 0) { |
DuaaAbusharkh | 0:a49e37a83a7a | 90 | print_mbedtls_error("mbedtls_crt_drbg_init", ret); |
DuaaAbusharkh | 0:a49e37a83a7a | 91 | _error = ret; |
DuaaAbusharkh | 0:a49e37a83a7a | 92 | return _error; |
DuaaAbusharkh | 0:a49e37a83a7a | 93 | } |
DuaaAbusharkh | 0:a49e37a83a7a | 94 | |
DuaaAbusharkh | 0:a49e37a83a7a | 95 | if ((ret = mbedtls_x509_crt_parse(&_cacert, (const unsigned char *)_ssl_ca_pem, |
DuaaAbusharkh | 0:a49e37a83a7a | 96 | strlen(_ssl_ca_pem) + 1)) != 0) { |
DuaaAbusharkh | 0:a49e37a83a7a | 97 | print_mbedtls_error("mbedtls_x509_crt_parse", ret); |
DuaaAbusharkh | 0:a49e37a83a7a | 98 | _error = ret; |
DuaaAbusharkh | 0:a49e37a83a7a | 99 | return _error; |
DuaaAbusharkh | 0:a49e37a83a7a | 100 | } |
DuaaAbusharkh | 0:a49e37a83a7a | 101 | |
DuaaAbusharkh | 0:a49e37a83a7a | 102 | if ((ret = mbedtls_ssl_config_defaults(&_ssl_conf, |
DuaaAbusharkh | 0:a49e37a83a7a | 103 | MBEDTLS_SSL_IS_CLIENT, |
DuaaAbusharkh | 0:a49e37a83a7a | 104 | MBEDTLS_SSL_TRANSPORT_STREAM, |
DuaaAbusharkh | 0:a49e37a83a7a | 105 | MBEDTLS_SSL_PRESET_DEFAULT)) != 0) { |
DuaaAbusharkh | 0:a49e37a83a7a | 106 | print_mbedtls_error("mbedtls_ssl_config_defaults", ret); |
DuaaAbusharkh | 0:a49e37a83a7a | 107 | _error = ret; |
DuaaAbusharkh | 0:a49e37a83a7a | 108 | return _error; |
DuaaAbusharkh | 0:a49e37a83a7a | 109 | } |
DuaaAbusharkh | 0:a49e37a83a7a | 110 | |
DuaaAbusharkh | 0:a49e37a83a7a | 111 | mbedtls_ssl_conf_ca_chain(&_ssl_conf, &_cacert, NULL); |
DuaaAbusharkh | 0:a49e37a83a7a | 112 | mbedtls_ssl_conf_rng(&_ssl_conf, mbedtls_ctr_drbg_random, &_ctr_drbg); |
DuaaAbusharkh | 0:a49e37a83a7a | 113 | |
DuaaAbusharkh | 0:a49e37a83a7a | 114 | /* It is possible to disable authentication by passing |
DuaaAbusharkh | 0:a49e37a83a7a | 115 | * MBEDTLS_SSL_VERIFY_NONE in the call to mbedtls_ssl_conf_authmode() |
DuaaAbusharkh | 0:a49e37a83a7a | 116 | */ |
DuaaAbusharkh | 0:a49e37a83a7a | 117 | mbedtls_ssl_conf_authmode(&_ssl_conf, MBEDTLS_SSL_VERIFY_REQUIRED); |
DuaaAbusharkh | 0:a49e37a83a7a | 118 | |
DuaaAbusharkh | 0:a49e37a83a7a | 119 | #if DEBUG_LEVEL > 0 |
DuaaAbusharkh | 0:a49e37a83a7a | 120 | mbedtls_ssl_conf_verify(&_ssl_conf, my_verify, NULL); |
DuaaAbusharkh | 0:a49e37a83a7a | 121 | mbedtls_ssl_conf_dbg(&_ssl_conf, my_debug, NULL); |
DuaaAbusharkh | 0:a49e37a83a7a | 122 | mbedtls_debug_set_threshold(DEBUG_LEVEL); |
DuaaAbusharkh | 0:a49e37a83a7a | 123 | #endif |
DuaaAbusharkh | 0:a49e37a83a7a | 124 | |
DuaaAbusharkh | 0:a49e37a83a7a | 125 | if ((ret = mbedtls_ssl_setup(&_ssl, &_ssl_conf)) != 0) { |
DuaaAbusharkh | 0:a49e37a83a7a | 126 | print_mbedtls_error("mbedtls_ssl_setup", ret); |
DuaaAbusharkh | 0:a49e37a83a7a | 127 | _error = ret; |
DuaaAbusharkh | 0:a49e37a83a7a | 128 | return _error; |
DuaaAbusharkh | 0:a49e37a83a7a | 129 | } |
DuaaAbusharkh | 0:a49e37a83a7a | 130 | |
DuaaAbusharkh | 0:a49e37a83a7a | 131 | mbedtls_ssl_set_hostname(&_ssl, _hostname); |
DuaaAbusharkh | 0:a49e37a83a7a | 132 | |
DuaaAbusharkh | 0:a49e37a83a7a | 133 | mbedtls_ssl_set_bio(&_ssl, static_cast<void *>(_tcpsocket), |
DuaaAbusharkh | 0:a49e37a83a7a | 134 | ssl_send, ssl_recv, NULL ); |
DuaaAbusharkh | 0:a49e37a83a7a | 135 | |
DuaaAbusharkh | 0:a49e37a83a7a | 136 | /* Connect to the server */ |
DuaaAbusharkh | 0:a49e37a83a7a | 137 | if (_debug) mbedtls_printf("Connecting to %s:%d\r\n", _hostname, _port); |
DuaaAbusharkh | 0:a49e37a83a7a | 138 | ret = _tcpsocket->connect(_hostname, _port); |
DuaaAbusharkh | 0:a49e37a83a7a | 139 | if (ret != NSAPI_ERROR_OK) { |
DuaaAbusharkh | 0:a49e37a83a7a | 140 | if (_debug) mbedtls_printf("Failed to connect\r\n"); |
DuaaAbusharkh | 0:a49e37a83a7a | 141 | onError(_tcpsocket, -1); |
DuaaAbusharkh | 0:a49e37a83a7a | 142 | return _error; |
DuaaAbusharkh | 0:a49e37a83a7a | 143 | } |
DuaaAbusharkh | 0:a49e37a83a7a | 144 | |
DuaaAbusharkh | 0:a49e37a83a7a | 145 | /* Start the handshake, the rest will be done in onReceive() */ |
DuaaAbusharkh | 0:a49e37a83a7a | 146 | if (_debug) mbedtls_printf("Starting the TLS handshake...\r\n"); |
DuaaAbusharkh | 0:a49e37a83a7a | 147 | ret = mbedtls_ssl_handshake(&_ssl); |
DuaaAbusharkh | 0:a49e37a83a7a | 148 | if (ret < 0) { |
DuaaAbusharkh | 0:a49e37a83a7a | 149 | if (ret != MBEDTLS_ERR_SSL_WANT_READ && |
DuaaAbusharkh | 0:a49e37a83a7a | 150 | ret != MBEDTLS_ERR_SSL_WANT_WRITE) { |
DuaaAbusharkh | 0:a49e37a83a7a | 151 | print_mbedtls_error("mbedtls_ssl_handshake", ret); |
DuaaAbusharkh | 0:a49e37a83a7a | 152 | onError(_tcpsocket, -1); |
DuaaAbusharkh | 0:a49e37a83a7a | 153 | } |
DuaaAbusharkh | 0:a49e37a83a7a | 154 | else { |
DuaaAbusharkh | 0:a49e37a83a7a | 155 | _error = ret; |
DuaaAbusharkh | 0:a49e37a83a7a | 156 | } |
DuaaAbusharkh | 0:a49e37a83a7a | 157 | return _error; |
DuaaAbusharkh | 0:a49e37a83a7a | 158 | } |
DuaaAbusharkh | 0:a49e37a83a7a | 159 | |
DuaaAbusharkh | 0:a49e37a83a7a | 160 | /* It also means the handshake is done, time to print info */ |
DuaaAbusharkh | 0:a49e37a83a7a | 161 | if (_debug) mbedtls_printf("TLS connection to %s:%d established\r\n", _hostname, _port); |
DuaaAbusharkh | 0:a49e37a83a7a | 162 | |
DuaaAbusharkh | 0:a49e37a83a7a | 163 | const uint32_t buf_size = 1024; |
DuaaAbusharkh | 0:a49e37a83a7a | 164 | char *buf = new char[buf_size]; |
DuaaAbusharkh | 0:a49e37a83a7a | 165 | mbedtls_x509_crt_info(buf, buf_size, "\r ", |
DuaaAbusharkh | 0:a49e37a83a7a | 166 | mbedtls_ssl_get_peer_cert(&_ssl)); |
DuaaAbusharkh | 0:a49e37a83a7a | 167 | if (_debug) mbedtls_printf("Server certificate:\r\n%s\r", buf); |
DuaaAbusharkh | 0:a49e37a83a7a | 168 | |
DuaaAbusharkh | 0:a49e37a83a7a | 169 | uint32_t flags = mbedtls_ssl_get_verify_result(&_ssl); |
DuaaAbusharkh | 0:a49e37a83a7a | 170 | if( flags != 0 ) |
DuaaAbusharkh | 0:a49e37a83a7a | 171 | { |
DuaaAbusharkh | 0:a49e37a83a7a | 172 | mbedtls_x509_crt_verify_info(buf, buf_size, "\r ! ", flags); |
DuaaAbusharkh | 0:a49e37a83a7a | 173 | if (_debug) mbedtls_printf("Certificate verification failed:\r\n%s\r\r\n", buf); |
DuaaAbusharkh | 0:a49e37a83a7a | 174 | } |
DuaaAbusharkh | 0:a49e37a83a7a | 175 | else { |
DuaaAbusharkh | 0:a49e37a83a7a | 176 | if (_debug) mbedtls_printf("Certificate verification passed\r\n\r\n"); |
DuaaAbusharkh | 0:a49e37a83a7a | 177 | } |
DuaaAbusharkh | 0:a49e37a83a7a | 178 | |
DuaaAbusharkh | 0:a49e37a83a7a | 179 | _is_connected = true; |
DuaaAbusharkh | 0:a49e37a83a7a | 180 | |
DuaaAbusharkh | 0:a49e37a83a7a | 181 | return 0; |
DuaaAbusharkh | 0:a49e37a83a7a | 182 | } |
DuaaAbusharkh | 0:a49e37a83a7a | 183 | |
DuaaAbusharkh | 0:a49e37a83a7a | 184 | bool connected() { |
DuaaAbusharkh | 0:a49e37a83a7a | 185 | return _is_connected; |
DuaaAbusharkh | 0:a49e37a83a7a | 186 | } |
DuaaAbusharkh | 0:a49e37a83a7a | 187 | |
DuaaAbusharkh | 0:a49e37a83a7a | 188 | nsapi_error_t error() { |
DuaaAbusharkh | 0:a49e37a83a7a | 189 | return _error; |
DuaaAbusharkh | 0:a49e37a83a7a | 190 | } |
DuaaAbusharkh | 0:a49e37a83a7a | 191 | |
DuaaAbusharkh | 0:a49e37a83a7a | 192 | TCPSocket* get_tcp_socket() { |
DuaaAbusharkh | 0:a49e37a83a7a | 193 | return _tcpsocket; |
DuaaAbusharkh | 0:a49e37a83a7a | 194 | } |
DuaaAbusharkh | 0:a49e37a83a7a | 195 | |
DuaaAbusharkh | 0:a49e37a83a7a | 196 | mbedtls_ssl_context* get_ssl_context() { |
DuaaAbusharkh | 0:a49e37a83a7a | 197 | return &_ssl; |
DuaaAbusharkh | 0:a49e37a83a7a | 198 | } |
DuaaAbusharkh | 0:a49e37a83a7a | 199 | |
DuaaAbusharkh | 0:a49e37a83a7a | 200 | /** |
DuaaAbusharkh | 0:a49e37a83a7a | 201 | * Set the debug flag. |
DuaaAbusharkh | 0:a49e37a83a7a | 202 | * |
DuaaAbusharkh | 0:a49e37a83a7a | 203 | * If this flag is set, debug information from mbed TLS will be logged to stdout. |
DuaaAbusharkh | 0:a49e37a83a7a | 204 | */ |
DuaaAbusharkh | 0:a49e37a83a7a | 205 | void set_debug(bool debug) { |
DuaaAbusharkh | 0:a49e37a83a7a | 206 | _debug = debug; |
DuaaAbusharkh | 0:a49e37a83a7a | 207 | } |
DuaaAbusharkh | 0:a49e37a83a7a | 208 | |
DuaaAbusharkh | 0:a49e37a83a7a | 209 | protected: |
DuaaAbusharkh | 0:a49e37a83a7a | 210 | /** |
DuaaAbusharkh | 0:a49e37a83a7a | 211 | * Helper for pretty-printing mbed TLS error codes |
DuaaAbusharkh | 0:a49e37a83a7a | 212 | */ |
DuaaAbusharkh | 0:a49e37a83a7a | 213 | static void print_mbedtls_error(const char *name, int err) { |
DuaaAbusharkh | 0:a49e37a83a7a | 214 | char buf[128]; |
DuaaAbusharkh | 0:a49e37a83a7a | 215 | mbedtls_strerror(err, buf, sizeof (buf)); |
DuaaAbusharkh | 0:a49e37a83a7a | 216 | mbedtls_printf("%s() failed: -0x%04x (%d): %s\r\n", name, -err, err, buf); |
DuaaAbusharkh | 0:a49e37a83a7a | 217 | } |
DuaaAbusharkh | 0:a49e37a83a7a | 218 | |
DuaaAbusharkh | 0:a49e37a83a7a | 219 | #if DEBUG_LEVEL > 0 |
DuaaAbusharkh | 0:a49e37a83a7a | 220 | /** |
DuaaAbusharkh | 0:a49e37a83a7a | 221 | * Debug callback for mbed TLS |
DuaaAbusharkh | 0:a49e37a83a7a | 222 | * Just prints on the USB serial port |
DuaaAbusharkh | 0:a49e37a83a7a | 223 | */ |
DuaaAbusharkh | 0:a49e37a83a7a | 224 | static void my_debug(void *ctx, int level, const char *file, int line, |
DuaaAbusharkh | 0:a49e37a83a7a | 225 | const char *str) |
DuaaAbusharkh | 0:a49e37a83a7a | 226 | { |
DuaaAbusharkh | 0:a49e37a83a7a | 227 | const char *p, *basename; |
DuaaAbusharkh | 0:a49e37a83a7a | 228 | (void) ctx; |
DuaaAbusharkh | 0:a49e37a83a7a | 229 | |
DuaaAbusharkh | 0:a49e37a83a7a | 230 | /* Extract basename from file */ |
DuaaAbusharkh | 0:a49e37a83a7a | 231 | for(p = basename = file; *p != '\0'; p++) { |
DuaaAbusharkh | 0:a49e37a83a7a | 232 | if(*p == '/' || *p == '\\') { |
DuaaAbusharkh | 0:a49e37a83a7a | 233 | basename = p + 1; |
DuaaAbusharkh | 0:a49e37a83a7a | 234 | } |
DuaaAbusharkh | 0:a49e37a83a7a | 235 | } |
DuaaAbusharkh | 0:a49e37a83a7a | 236 | |
DuaaAbusharkh | 0:a49e37a83a7a | 237 | if (_debug) { |
DuaaAbusharkh | 0:a49e37a83a7a | 238 | mbedtls_printf("%s:%04d: |%d| %s", basename, line, level, str); |
DuaaAbusharkh | 0:a49e37a83a7a | 239 | } |
DuaaAbusharkh | 0:a49e37a83a7a | 240 | } |
DuaaAbusharkh | 0:a49e37a83a7a | 241 | |
DuaaAbusharkh | 0:a49e37a83a7a | 242 | /** |
DuaaAbusharkh | 0:a49e37a83a7a | 243 | * Certificate verification callback for mbed TLS |
DuaaAbusharkh | 0:a49e37a83a7a | 244 | * Here we only use it to display information on each cert in the chain |
DuaaAbusharkh | 0:a49e37a83a7a | 245 | */ |
DuaaAbusharkh | 0:a49e37a83a7a | 246 | static int my_verify(void *data, mbedtls_x509_crt *crt, int depth, uint32_t *flags) |
DuaaAbusharkh | 0:a49e37a83a7a | 247 | { |
DuaaAbusharkh | 0:a49e37a83a7a | 248 | const uint32_t buf_size = 1024; |
DuaaAbusharkh | 0:a49e37a83a7a | 249 | char *buf = new char[buf_size]; |
DuaaAbusharkh | 0:a49e37a83a7a | 250 | (void) data; |
DuaaAbusharkh | 0:a49e37a83a7a | 251 | |
DuaaAbusharkh | 0:a49e37a83a7a | 252 | if (_debug) mbedtls_printf("\nVerifying certificate at depth %d:\n", depth); |
DuaaAbusharkh | 0:a49e37a83a7a | 253 | mbedtls_x509_crt_info(buf, buf_size - 1, " ", crt); |
DuaaAbusharkh | 0:a49e37a83a7a | 254 | if (_debug) mbedtls_printf("%s", buf); |
DuaaAbusharkh | 0:a49e37a83a7a | 255 | |
DuaaAbusharkh | 0:a49e37a83a7a | 256 | if (*flags == 0) |
DuaaAbusharkh | 0:a49e37a83a7a | 257 | if (_debug) mbedtls_printf("No verification issue for this certificate\n"); |
DuaaAbusharkh | 0:a49e37a83a7a | 258 | else |
DuaaAbusharkh | 0:a49e37a83a7a | 259 | { |
DuaaAbusharkh | 0:a49e37a83a7a | 260 | mbedtls_x509_crt_verify_info(buf, buf_size, " ! ", *flags); |
DuaaAbusharkh | 0:a49e37a83a7a | 261 | if (_debug) mbedtls_printf("%s\n", buf); |
DuaaAbusharkh | 0:a49e37a83a7a | 262 | } |
DuaaAbusharkh | 0:a49e37a83a7a | 263 | |
DuaaAbusharkh | 0:a49e37a83a7a | 264 | delete[] buf; |
DuaaAbusharkh | 0:a49e37a83a7a | 265 | return 0; |
DuaaAbusharkh | 0:a49e37a83a7a | 266 | } |
DuaaAbusharkh | 0:a49e37a83a7a | 267 | #endif |
DuaaAbusharkh | 0:a49e37a83a7a | 268 | |
DuaaAbusharkh | 0:a49e37a83a7a | 269 | /** |
DuaaAbusharkh | 0:a49e37a83a7a | 270 | * Receive callback for mbed TLS |
DuaaAbusharkh | 0:a49e37a83a7a | 271 | */ |
DuaaAbusharkh | 0:a49e37a83a7a | 272 | static int ssl_recv(void *ctx, unsigned char *buf, size_t len) { |
DuaaAbusharkh | 0:a49e37a83a7a | 273 | int recv = -1; |
DuaaAbusharkh | 0:a49e37a83a7a | 274 | TCPSocket *socket = static_cast<TCPSocket *>(ctx); |
DuaaAbusharkh | 0:a49e37a83a7a | 275 | recv = socket->recv(buf, len); |
DuaaAbusharkh | 0:a49e37a83a7a | 276 | |
DuaaAbusharkh | 0:a49e37a83a7a | 277 | if (NSAPI_ERROR_WOULD_BLOCK == recv) { |
DuaaAbusharkh | 0:a49e37a83a7a | 278 | return MBEDTLS_ERR_SSL_WANT_READ; |
DuaaAbusharkh | 0:a49e37a83a7a | 279 | } |
DuaaAbusharkh | 0:a49e37a83a7a | 280 | else if (recv < 0) { |
DuaaAbusharkh | 0:a49e37a83a7a | 281 | return -1; |
DuaaAbusharkh | 0:a49e37a83a7a | 282 | } |
DuaaAbusharkh | 0:a49e37a83a7a | 283 | else { |
DuaaAbusharkh | 0:a49e37a83a7a | 284 | return recv; |
DuaaAbusharkh | 0:a49e37a83a7a | 285 | } |
DuaaAbusharkh | 0:a49e37a83a7a | 286 | } |
DuaaAbusharkh | 0:a49e37a83a7a | 287 | |
DuaaAbusharkh | 0:a49e37a83a7a | 288 | /** |
DuaaAbusharkh | 0:a49e37a83a7a | 289 | * Send callback for mbed TLS |
DuaaAbusharkh | 0:a49e37a83a7a | 290 | */ |
DuaaAbusharkh | 0:a49e37a83a7a | 291 | static int ssl_send(void *ctx, const unsigned char *buf, size_t len) { |
DuaaAbusharkh | 0:a49e37a83a7a | 292 | int size = -1; |
DuaaAbusharkh | 0:a49e37a83a7a | 293 | TCPSocket *socket = static_cast<TCPSocket *>(ctx); |
DuaaAbusharkh | 0:a49e37a83a7a | 294 | size = socket->send(buf, len); |
DuaaAbusharkh | 0:a49e37a83a7a | 295 | |
DuaaAbusharkh | 0:a49e37a83a7a | 296 | if(NSAPI_ERROR_WOULD_BLOCK == size) { |
DuaaAbusharkh | 0:a49e37a83a7a | 297 | return len; |
DuaaAbusharkh | 0:a49e37a83a7a | 298 | } |
DuaaAbusharkh | 0:a49e37a83a7a | 299 | else if (size < 0){ |
DuaaAbusharkh | 0:a49e37a83a7a | 300 | return -1; |
DuaaAbusharkh | 0:a49e37a83a7a | 301 | } |
DuaaAbusharkh | 0:a49e37a83a7a | 302 | else { |
DuaaAbusharkh | 0:a49e37a83a7a | 303 | return size; |
DuaaAbusharkh | 0:a49e37a83a7a | 304 | } |
DuaaAbusharkh | 0:a49e37a83a7a | 305 | } |
DuaaAbusharkh | 0:a49e37a83a7a | 306 | |
DuaaAbusharkh | 0:a49e37a83a7a | 307 | private: |
DuaaAbusharkh | 0:a49e37a83a7a | 308 | void onError(TCPSocket *s, int error) { |
DuaaAbusharkh | 0:a49e37a83a7a | 309 | s->close(); |
DuaaAbusharkh | 0:a49e37a83a7a | 310 | _error = error; |
DuaaAbusharkh | 0:a49e37a83a7a | 311 | } |
DuaaAbusharkh | 0:a49e37a83a7a | 312 | |
DuaaAbusharkh | 0:a49e37a83a7a | 313 | TCPSocket* _tcpsocket; |
DuaaAbusharkh | 0:a49e37a83a7a | 314 | |
DuaaAbusharkh | 0:a49e37a83a7a | 315 | const char* DRBG_PERS; |
DuaaAbusharkh | 0:a49e37a83a7a | 316 | const char* _ssl_ca_pem; |
DuaaAbusharkh | 0:a49e37a83a7a | 317 | const char* _hostname; |
DuaaAbusharkh | 0:a49e37a83a7a | 318 | uint16_t _port; |
DuaaAbusharkh | 0:a49e37a83a7a | 319 | |
DuaaAbusharkh | 0:a49e37a83a7a | 320 | bool _debug; |
DuaaAbusharkh | 0:a49e37a83a7a | 321 | bool _is_connected; |
DuaaAbusharkh | 0:a49e37a83a7a | 322 | |
DuaaAbusharkh | 0:a49e37a83a7a | 323 | nsapi_error_t _error; |
DuaaAbusharkh | 0:a49e37a83a7a | 324 | |
DuaaAbusharkh | 0:a49e37a83a7a | 325 | mbedtls_entropy_context _entropy; |
DuaaAbusharkh | 0:a49e37a83a7a | 326 | mbedtls_ctr_drbg_context _ctr_drbg; |
DuaaAbusharkh | 0:a49e37a83a7a | 327 | mbedtls_x509_crt _cacert; |
DuaaAbusharkh | 0:a49e37a83a7a | 328 | mbedtls_ssl_context _ssl; |
DuaaAbusharkh | 0:a49e37a83a7a | 329 | mbedtls_ssl_config _ssl_conf; |
DuaaAbusharkh | 0:a49e37a83a7a | 330 | }; |
DuaaAbusharkh | 0:a49e37a83a7a | 331 | |
DuaaAbusharkh | 0:a49e37a83a7a | 332 | #endif // _MBED_HTTPS_TLS_SOCKET_H_ |