Duy tran / RecordType-v-16

v-16

RecordWifiConf.cpp@0:89e2c8a57572, 2017-12-12 (annotated)

Committer:
DuyLionTran
Date:
Tue Dec 12 15:58:23 2017 +0000
Revision:
0:89e2c8a57572
version 1.6

Who changed what in which revision?

UserRevisionLine numberNew contents of line
DuyLionTran 0:89e2c8a57572 1 /**
DuyLionTran 0:89e2c8a57572 2 ******************************************************************************
DuyLionTran 0:89e2c8a57572 3 * @file RecordWifiConf.h
DuyLionTran 0:89e2c8a57572 4 * @author ST / Central Labs
DuyLionTran 0:89e2c8a57572 5 * @version V2.0.0
DuyLionTran 0:89e2c8a57572 6 * @date 28 Apr 2017
DuyLionTran 0:89e2c8a57572 7 * @brief {@link RecordMimeType} that contains a Wifi configuration data
DuyLionTran 0:89e2c8a57572 8 ******************************************************************************
DuyLionTran 0:89e2c8a57572 9 * @attention
DuyLionTran 0:89e2c8a57572 10 *
DuyLionTran 0:89e2c8a57572 11 * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
DuyLionTran 0:89e2c8a57572 12 *
DuyLionTran 0:89e2c8a57572 13 * Redistribution and use in source and binary forms, with or without modification,
DuyLionTran 0:89e2c8a57572 14 * are permitted provided that the following conditions are met:
DuyLionTran 0:89e2c8a57572 15 * 1. Redistributions of source code must retain the above copyright notice,
DuyLionTran 0:89e2c8a57572 16 * this list of conditions and the following disclaimer.
DuyLionTran 0:89e2c8a57572 17 * 2. Redistributions in binary form must reproduce the above copyright notice,
DuyLionTran 0:89e2c8a57572 18 * this list of conditions and the following disclaimer in the documentation
DuyLionTran 0:89e2c8a57572 19 * and/or other materials provided with the distribution.
DuyLionTran 0:89e2c8a57572 20 * 3. Neither the name of STMicroelectronics nor the names of its contributors
DuyLionTran 0:89e2c8a57572 21 * may be used to endorse or promote products derived from this software
DuyLionTran 0:89e2c8a57572 22 * without specific prior written permission.
DuyLionTran 0:89e2c8a57572 23 *
DuyLionTran 0:89e2c8a57572 24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
DuyLionTran 0:89e2c8a57572 25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
DuyLionTran 0:89e2c8a57572 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DuyLionTran 0:89e2c8a57572 27 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
DuyLionTran 0:89e2c8a57572 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DuyLionTran 0:89e2c8a57572 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
DuyLionTran 0:89e2c8a57572 30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
DuyLionTran 0:89e2c8a57572 31 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
DuyLionTran 0:89e2c8a57572 32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
DuyLionTran 0:89e2c8a57572 33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
DuyLionTran 0:89e2c8a57572 34 *
DuyLionTran 0:89e2c8a57572 35 ******************************************************************************
DuyLionTran 0:89e2c8a57572 36 */
DuyLionTran 0:89e2c8a57572 37 #include <algorithm>
DuyLionTran 0:89e2c8a57572 38
DuyLionTran 0:89e2c8a57572 39 #include <RecordWifiConf.h>
DuyLionTran 0:89e2c8a57572 40 namespace NDefLib {
DuyLionTran 0:89e2c8a57572 41 const std::string RecordWifiConf::sWifiConfMimeType("application/vnd.wfa.wsc");
DuyLionTran 0:89e2c8a57572 42
DuyLionTran 0:89e2c8a57572 43 const RecordWifiConf::fieldType_t RecordWifiConf::sCredentialField_id = 0x100E;
DuyLionTran 0:89e2c8a57572 44 const RecordWifiConf::fieldType_t RecordWifiConf::sNetworkIdField_id = 0x1026;
DuyLionTran 0:89e2c8a57572 45 const uint8_t RecordWifiConf::sDefaultNetworkId=0x01;
DuyLionTran 0:89e2c8a57572 46 const RecordWifiConf::fieldType_t RecordWifiConf::sSsidField_id = 0x1045;
DuyLionTran 0:89e2c8a57572 47 const RecordWifiConf::fieldType_t RecordWifiConf::sNetworkKeyField_id = 0x1027;
DuyLionTran 0:89e2c8a57572 48 const RecordWifiConf::fieldType_t RecordWifiConf::sAuthTypeField_id = 0x1003;
DuyLionTran 0:89e2c8a57572 49 const RecordWifiConf::fieldType_t RecordWifiConf::sEncTypeField_id = 0x100F;
DuyLionTran 0:89e2c8a57572 50
DuyLionTran 0:89e2c8a57572 51 RecordWifiConf::RecordWifiConf(const std::string &ssid,const std::string &pass, authType_t authType,encryptionType_t encType):
DuyLionTran 0:89e2c8a57572 52 RecordMimeType(sWifiConfMimeType),
DuyLionTran 0:89e2c8a57572 53 mSsid(ssid),
DuyLionTran 0:89e2c8a57572 54 mPasskey(pass),
DuyLionTran 0:89e2c8a57572 55 mAuthType(authType),
DuyLionTran 0:89e2c8a57572 56 mEncType(encType),
DuyLionTran 0:89e2c8a57572 57 mContentIsChange(true),
DuyLionTran 0:89e2c8a57572 58 mMimeData(NULL),
DuyLionTran 0:89e2c8a57572 59 mMimeDataLenght(0) {
DuyLionTran 0:89e2c8a57572 60 }
DuyLionTran 0:89e2c8a57572 61
DuyLionTran 0:89e2c8a57572 62 /**
DuyLionTran 0:89e2c8a57572 63 * move the data into the buffer swapping the byte order
DuyLionTran 0:89e2c8a57572 64 * @param data data to write into the buffer
DuyLionTran 0:89e2c8a57572 65 * @param outBuffer buffer where write the data
DuyLionTran 0:89e2c8a57572 66 */
DuyLionTran 0:89e2c8a57572 67 template<typename T>
DuyLionTran 0:89e2c8a57572 68 void writeBEFromLE(const T& data,uint8_t *outBuffer) {
DuyLionTran 0:89e2c8a57572 69 uint8_t *buffer = (uint8_t*)&data;
DuyLionTran 0:89e2c8a57572 70 std::reverse_copy(buffer,buffer+sizeof(T),outBuffer);
DuyLionTran 0:89e2c8a57572 71 }
DuyLionTran 0:89e2c8a57572 72
DuyLionTran 0:89e2c8a57572 73 template<typename T>
DuyLionTran 0:89e2c8a57572 74 uint32_t RecordWifiConf::write_data_field(const fieldType_t& dataType,const T& data,uint8_t *buffer){
DuyLionTran 0:89e2c8a57572 75 uint32_t offset=0;
DuyLionTran 0:89e2c8a57572 76 writeBEFromLE(dataType,buffer+offset);
DuyLionTran 0:89e2c8a57572 77 offset+=sizeof(dataType);
DuyLionTran 0:89e2c8a57572 78 const fieldLenght_t dataSize = sizeof(T);
DuyLionTran 0:89e2c8a57572 79 writeBEFromLE(dataSize,buffer+offset);
DuyLionTran 0:89e2c8a57572 80 offset+=sizeof(dataSize);
DuyLionTran 0:89e2c8a57572 81 writeBEFromLE(data,buffer+offset);
DuyLionTran 0:89e2c8a57572 82 return offset+dataSize;
DuyLionTran 0:89e2c8a57572 83 }
DuyLionTran 0:89e2c8a57572 84
DuyLionTran 0:89e2c8a57572 85 uint32_t RecordWifiConf::write_data_field(const fieldType_t& dataType,
DuyLionTran 0:89e2c8a57572 86 const char *data,const fieldLenght_t& size, uint8_t *buffer){
DuyLionTran 0:89e2c8a57572 87 uint32_t offset=0;
DuyLionTran 0:89e2c8a57572 88 writeBEFromLE(dataType,buffer+offset);
DuyLionTran 0:89e2c8a57572 89 offset+=sizeof(dataType);;
DuyLionTran 0:89e2c8a57572 90 writeBEFromLE(size,buffer+offset);
DuyLionTran 0:89e2c8a57572 91 offset+=sizeof(size);
DuyLionTran 0:89e2c8a57572 92 if (data!=NULL || size!=0) {
DuyLionTran 0:89e2c8a57572 93 std::memcpy(buffer+offset,data,size);
DuyLionTran 0:89e2c8a57572 94 }
DuyLionTran 0:89e2c8a57572 95 return offset+size;
DuyLionTran 0:89e2c8a57572 96 }
DuyLionTran 0:89e2c8a57572 97
DuyLionTran 0:89e2c8a57572 98 void RecordWifiConf::update_mime_data(){
DuyLionTran 0:89e2c8a57572 99 if (!mContentIsChange) {
DuyLionTran 0:89e2c8a57572 100 return;
DuyLionTran 0:89e2c8a57572 101 }
DuyLionTran 0:89e2c8a57572 102
DuyLionTran 0:89e2c8a57572 103 mMimeDataLenght = sizeof(sCredentialField_id)+sizeof(fieldLenght_t)+
DuyLionTran 0:89e2c8a57572 104 sizeof(sNetworkIdField_id)+sizeof(fieldLenght_t)+sizeof(sDefaultNetworkId)+
DuyLionTran 0:89e2c8a57572 105 sizeof(sSsidField_id)+sizeof(fieldLenght_t)+mSsid.length()+
DuyLionTran 0:89e2c8a57572 106 sizeof(sNetworkKeyField_id)+sizeof(fieldLenght_t)+mPasskey.length()+
DuyLionTran 0:89e2c8a57572 107 sizeof(sAuthTypeField_id)+sizeof(fieldLenght_t)+2+
DuyLionTran 0:89e2c8a57572 108 sizeof(sEncTypeField_id)+sizeof(fieldLenght_t)+2;
DuyLionTran 0:89e2c8a57572 109
DuyLionTran 0:89e2c8a57572 110 if (mMimeData!=NULL) {
DuyLionTran 0:89e2c8a57572 111 delete [] mMimeData;
DuyLionTran 0:89e2c8a57572 112 }
DuyLionTran 0:89e2c8a57572 113
DuyLionTran 0:89e2c8a57572 114 mMimeData = new uint8_t[mMimeDataLenght];
DuyLionTran 0:89e2c8a57572 115
DuyLionTran 0:89e2c8a57572 116 uint32_t writeOffset=0;
DuyLionTran 0:89e2c8a57572 117 writeBEFromLE(sCredentialField_id,mMimeData+writeOffset);
DuyLionTran 0:89e2c8a57572 118 writeOffset+=sizeof(sCredentialField_id);
DuyLionTran 0:89e2c8a57572 119 writeBEFromLE((fieldLenght_t)(mMimeDataLenght-4),mMimeData+writeOffset);
DuyLionTran 0:89e2c8a57572 120 writeOffset+=sizeof(fieldLenght_t);
DuyLionTran 0:89e2c8a57572 121
DuyLionTran 0:89e2c8a57572 122 writeOffset += write_data_field(sNetworkIdField_id,sDefaultNetworkId,mMimeData+writeOffset);
DuyLionTran 0:89e2c8a57572 123 fieldLenght_t tempLength = (fieldLenght_t)sizeof(std::string::value_type)*mSsid.length();
DuyLionTran 0:89e2c8a57572 124 writeOffset += write_data_field(sSsidField_id,mSsid.data(),tempLength,mMimeData+writeOffset);
DuyLionTran 0:89e2c8a57572 125 writeOffset += write_data_field(sAuthTypeField_id,(int16_t)mAuthType,mMimeData+writeOffset);
DuyLionTran 0:89e2c8a57572 126 writeOffset += write_data_field(sEncTypeField_id,(int16_t)mEncType,mMimeData+writeOffset);
DuyLionTran 0:89e2c8a57572 127 tempLength = (fieldLenght_t)sizeof(std::string::value_type)*mPasskey.length();
DuyLionTran 0:89e2c8a57572 128 writeOffset += write_data_field(sNetworkKeyField_id,mPasskey.data(),tempLength,mMimeData+writeOffset);
DuyLionTran 0:89e2c8a57572 129
DuyLionTran 0:89e2c8a57572 130 set_mime_data_pointer(mMimeData,mMimeDataLenght);
DuyLionTran 0:89e2c8a57572 131 mContentIsChange=false;
DuyLionTran 0:89e2c8a57572 132 }
DuyLionTran 0:89e2c8a57572 133
DuyLionTran 0:89e2c8a57572 134 /**
DuyLionTran 0:89e2c8a57572 135 * Read a data from a buffer, where the buffer is in little endian and we are in
DuyLionTran 0:89e2c8a57572 136 * a big endian system
DuyLionTran 0:89e2c8a57572 137 * @param buffer buffer where read the data
DuyLionTran 0:89e2c8a57572 138 * @param out pointer to the variable where store the read data
DuyLionTran 0:89e2c8a57572 139 */
DuyLionTran 0:89e2c8a57572 140 template<typename T>
DuyLionTran 0:89e2c8a57572 141 void readLEFromBE(const uint8_t *const buffer,T* out){
DuyLionTran 0:89e2c8a57572 142 const uint32_t typeSize = sizeof(T);
DuyLionTran 0:89e2c8a57572 143 uint8_t *outBuffer = (uint8_t*)out;
DuyLionTran 0:89e2c8a57572 144 std::reverse_copy(buffer,buffer+typeSize,outBuffer);
DuyLionTran 0:89e2c8a57572 145 }
DuyLionTran 0:89e2c8a57572 146
DuyLionTran 0:89e2c8a57572 147 /**
DuyLionTran 0:89e2c8a57572 148 * Create a RecordWifiConf reading the data from the buffer.
DuyLionTran 0:89e2c8a57572 149 * @param header Record header.
DuyLionTran 0:89e2c8a57572 150 * @param buffer Buffer to read the data from.
DuyLionTran 0:89e2c8a57572 151 * @return an object of type RecordVCard or NULL
DuyLionTran 0:89e2c8a57572 152 * @par User is in charge of freeing the pointer returned by this function.
DuyLionTran 0:89e2c8a57572 153 */
DuyLionTran 0:89e2c8a57572 154 RecordWifiConf* RecordWifiConf::parse(const RecordHeader &header, const uint8_t* buffer){
DuyLionTran 0:89e2c8a57572 155 if (header.get_FNT() != RecordHeader::Mime_media_type || header.get_type_length() != sWifiConfMimeType.size()) {
DuyLionTran 0:89e2c8a57572 156 return NULL;
DuyLionTran 0:89e2c8a57572 157 }
DuyLionTran 0:89e2c8a57572 158
DuyLionTran 0:89e2c8a57572 159 if (sWifiConfMimeType.compare(0, sWifiConfMimeType.size(), (const char*) buffer, sWifiConfMimeType.size()) != 0) {
DuyLionTran 0:89e2c8a57572 160 return NULL;
DuyLionTran 0:89e2c8a57572 161 }
DuyLionTran 0:89e2c8a57572 162
DuyLionTran 0:89e2c8a57572 163 buffer += header.get_type_length();
DuyLionTran 0:89e2c8a57572 164 buffer += header.get_id_length();
DuyLionTran 0:89e2c8a57572 165
DuyLionTran 0:89e2c8a57572 166 fieldType_t type;
DuyLionTran 0:89e2c8a57572 167 fieldLenght_t dataLength;
DuyLionTran 0:89e2c8a57572 168
DuyLionTran 0:89e2c8a57572 169 readLEFromBE(buffer,&type);
DuyLionTran 0:89e2c8a57572 170 buffer+=sizeof(fieldType_t);
DuyLionTran 0:89e2c8a57572 171 readLEFromBE(buffer,&dataLength);
DuyLionTran 0:89e2c8a57572 172 buffer+=sizeof(fieldLenght_t);
DuyLionTran 0:89e2c8a57572 173
DuyLionTran 0:89e2c8a57572 174 if(type!=sCredentialField_id) {
DuyLionTran 0:89e2c8a57572 175 return NULL;
DuyLionTran 0:89e2c8a57572 176 }
DuyLionTran 0:89e2c8a57572 177
DuyLionTran 0:89e2c8a57572 178 std::string ssid;
DuyLionTran 0:89e2c8a57572 179 std::string pass;
DuyLionTran 0:89e2c8a57572 180 authType_t authType=AUTH_OPEN;
DuyLionTran 0:89e2c8a57572 181 encryptionType_t encType=ENC_TYPE_NONE;
DuyLionTran 0:89e2c8a57572 182 uint16_t enumValue;
DuyLionTran 0:89e2c8a57572 183 fieldLenght_t readData=0;
DuyLionTran 0:89e2c8a57572 184 while (readData!=dataLength) {
DuyLionTran 0:89e2c8a57572 185 readLEFromBE(buffer+readData,&type);
DuyLionTran 0:89e2c8a57572 186 readData+=sizeof(fieldType_t);
DuyLionTran 0:89e2c8a57572 187 fieldLenght_t length;
DuyLionTran 0:89e2c8a57572 188 readLEFromBE(buffer+readData,&length);
DuyLionTran 0:89e2c8a57572 189 readData+=sizeof(fieldLenght_t);
DuyLionTran 0:89e2c8a57572 190
DuyLionTran 0:89e2c8a57572 191 switch(type) {
DuyLionTran 0:89e2c8a57572 192 case sSsidField_id: {
DuyLionTran 0:89e2c8a57572 193 ssid.insert(0,(const char*)buffer+readData,length);
DuyLionTran 0:89e2c8a57572 194 break;
DuyLionTran 0:89e2c8a57572 195 }
DuyLionTran 0:89e2c8a57572 196 case sNetworkKeyField_id: {
DuyLionTran 0:89e2c8a57572 197 pass.insert(0,(const char*)buffer+readData,length);
DuyLionTran 0:89e2c8a57572 198 break;
DuyLionTran 0:89e2c8a57572 199 }
DuyLionTran 0:89e2c8a57572 200 case sAuthTypeField_id: {
DuyLionTran 0:89e2c8a57572 201 readLEFromBE(buffer+readData,&enumValue);
DuyLionTran 0:89e2c8a57572 202 authType = (authType_t)enumValue;
DuyLionTran 0:89e2c8a57572 203 break;
DuyLionTran 0:89e2c8a57572 204 }
DuyLionTran 0:89e2c8a57572 205 case sEncTypeField_id: {
DuyLionTran 0:89e2c8a57572 206 readLEFromBE(buffer+readData,&enumValue);
DuyLionTran 0:89e2c8a57572 207 encType = (encryptionType_t)enumValue;
DuyLionTran 0:89e2c8a57572 208 break;
DuyLionTran 0:89e2c8a57572 209 }
DuyLionTran 0:89e2c8a57572 210 }
DuyLionTran 0:89e2c8a57572 211
DuyLionTran 0:89e2c8a57572 212 readData+=length;
DuyLionTran 0:89e2c8a57572 213 }
DuyLionTran 0:89e2c8a57572 214
DuyLionTran 0:89e2c8a57572 215 return new RecordWifiConf(ssid,pass,authType,encType);
DuyLionTran 0:89e2c8a57572 216 }//parse
DuyLionTran 0:89e2c8a57572 217
DuyLionTran 0:89e2c8a57572 218 }
DuyLionTran 0:89e2c8a57572 219
DuyLionTran 0:89e2c8a57572 220
DuyLionTran 0:89e2c8a57572 221 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/