Doug Anson / mbedConnectorInterfaceWithDM

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Fork of mbedConnectorInterfaceV3 by Doug Anson

source/PassphraseAuthenticator.cpp@24:c92984bede9c, 2016-06-12 (annotated)

Committer:
ansond
Date:
Sun Jun 12 02:49:50 2016 +0000
Revision:
24:c92984bede9c
Parent:
13:9edad7677211
Child:
38:bb6d2be4d54c
updated

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ansond 13:9edad7677211 1 /**
ansond 13:9edad7677211 2 * @file PassphraseAuthenticator.cpp
ansond 13:9edad7677211 3 * @brief mbed CoAP Endpoint Device Management Passphrase-based Authenticator class
ansond 13:9edad7677211 4 * @author Doug Anson
ansond 13:9edad7677211 5 * @version 1.0
ansond 13:9edad7677211 6 * @see
ansond 13:9edad7677211 7 *
ansond 13:9edad7677211 8 * Copyright (c) 2016
ansond 13:9edad7677211 9 *
ansond 13:9edad7677211 10 * Licensed under the Apache License, Version 2.0 (the "License");
ansond 13:9edad7677211 11 * you may not use this file except in compliance with the License.
ansond 13:9edad7677211 12 * You may obtain a copy of the License at
ansond 13:9edad7677211 13 *
ansond 13:9edad7677211 14 * http://www.apache.org/licenses/LICENSE-2.0
ansond 13:9edad7677211 15 *
ansond 13:9edad7677211 16 * Unless required by applicable law or agreed to in writing, software
ansond 13:9edad7677211 17 * distributed under the License is distributed on an "AS IS" BASIS,
ansond 13:9edad7677211 18 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
ansond 13:9edad7677211 19 * See the License for the specific language governing permissions and
ansond 13:9edad7677211 20 * limitations under the License.
ansond 13:9edad7677211 21 */
ansond 13:9edad7677211 22
ansond 13:9edad7677211 23 // Class support
ansond 13:9edad7677211 24 #include "mbed-connector-interface/PassphraseAuthenticator.h"
ansond 13:9edad7677211 25
ansond 13:9edad7677211 26 // demarshalling support
ansond 13:9edad7677211 27 #include "mbed-client/m2mresource.h"
ansond 13:9edad7677211 28
ansond 13:9edad7677211 29 // constructor
ansond 13:9edad7677211 30 PassphraseAuthenticator::PassphraseAuthenticator(const Logger *logger,const void *passphrase) : Authenticator(logger,passphrase) {
ansond 13:9edad7677211 31 }
ansond 13:9edad7677211 32
ansond 13:9edad7677211 33 // copy constructor
ansond 13:9edad7677211 34 PassphraseAuthenticator::PassphraseAuthenticator(const PassphraseAuthenticator &authenticator) : Authenticator(authenticator) {
ansond 13:9edad7677211 35 }
ansond 13:9edad7677211 36
ansond 13:9edad7677211 37 // destructor
ansond 13:9edad7677211 38 PassphraseAuthenticator::~PassphraseAuthenticator() {
ansond 13:9edad7677211 39 }
ansond 13:9edad7677211 40
ansond 13:9edad7677211 41 // basic (trivial passphrase authentication)
ansond 13:9edad7677211 42 bool PassphraseAuthenticator::authenticate(void *challenge) {
ansond 13:9edad7677211 43 // use simple, trivial passphrase based comparison as the check...
ansond 13:9edad7677211 44 char *passphrase = (char *)this->m_secret;
ansond 13:9edad7677211 45 char *input_passphrase = NULL;
ansond 13:9edad7677211 46
ansond 24:c92984bede9c 47 #if defined (HAS_EXECUTE_PARAMS)
ansond 24:c92984bede9c 48 // ExecParam mbed-client: un-marshall the ExecuteParameter to get the simple string...
ansond 13:9edad7677211 49 M2MResource::M2MExecuteParameter* param = (M2MResource::M2MExecuteParameter*)challenge;
ansond 13:9edad7677211 50 if (param != NULL) {
ansond 13:9edad7677211 51 // use parameters to extract the passphrase
ansond 13:9edad7677211 52 String object_name = param->get_argument_object_name();
ansond 13:9edad7677211 53 int instance_id = (int)param->get_argument_object_instance_id();
ansond 13:9edad7677211 54 String resource_name = param->get_argument_resource_name();
ansond 13:9edad7677211 55 string value = this->coapDataToString(param->get_argument_value(),param->get_argument_value_length());
ansond 13:9edad7677211 56 input_passphrase = (char *)value.c_str();
ansond 13:9edad7677211 57 }
ansond 24:c92984bede9c 58 #else
ansond 24:c92984bede9c 59 // Non-ExecParam mbed-client: use the parameter directly...
ansond 24:c92984bede9c 60 input_passphrase = (char *)challenge;
ansond 24:c92984bede9c 61 #endif
ansond 13:9edad7677211 62
ansond 13:9edad7677211 63 // DEBUG
ansond 13:9edad7677211 64 //this->m_logger->log("Authenticator(passphrase): passphrase: [%s] challenge: [%s]",passphrase,input_passphrase);
ansond 13:9edad7677211 65
ansond 13:9edad7677211 66 // parameter checks...the compare passphrases and return the result
ansond 13:9edad7677211 67 if (passphrase != NULL && input_passphrase != NULL && strcmp(passphrase,input_passphrase) == 0) {
ansond 13:9edad7677211 68 // DEBUG
ansond 13:9edad7677211 69 this->m_logger->log("Authenticator(passphrase): Passphrases MATCH. Authenticated.");
ansond 13:9edad7677211 70
ansond 13:9edad7677211 71 // passphrases match
ansond 13:9edad7677211 72 return true;
ansond 13:9edad7677211 73 }
ansond 13:9edad7677211 74
ansond 13:9edad7677211 75 // DEBUG
ansond 13:9edad7677211 76 this->m_logger->log("Authenticator(passphrase): Passphrases do not match");
ansond 13:9edad7677211 77
ansond 13:9edad7677211 78 // authentication failure
ansond 13:9edad7677211 79 return false;
ansond 13:9edad7677211 80 }
ansond 13:9edad7677211 81
ansond 13:9edad7677211 82 // convenience method to get the URI from its buffer field...
ansond 13:9edad7677211 83 string PassphraseAuthenticator::coapDataToString(uint8_t *coap_data_ptr,int coap_data_ptr_length) {
ansond 13:9edad7677211 84 if (coap_data_ptr != NULL && coap_data_ptr_length > 0) {
ansond 13:9edad7677211 85 char buf[MAX_VALUE_BUFFER_LENGTH+1];
ansond 13:9edad7677211 86 memset(buf,0,MAX_VALUE_BUFFER_LENGTH+1);
ansond 13:9edad7677211 87 memcpy(buf,(char *)coap_data_ptr,coap_data_ptr_length);
ansond 13:9edad7677211 88 return string(buf);
ansond 13:9edad7677211 89 }
ansond 13:9edad7677211 90 return string("");
ansond 13:9edad7677211 91 }