CmdDataSessionKey.cpp

00001 /* Copyright (c) <2016> <MultiTech Systems>, MIT License
00002  *
00003  * Permission is hereby granted, free of charge, to any person obtaining a copy of this software 
00004  * and associated documentation files (the "Software"), to deal in the Software without restriction, 
00005  * including without limitation the rights to use, copy, modify, merge, publish, distribute, 
00006  * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is 
00007  * furnished to do so, subject to the following conditions:
00008  *
00009  * The above copyright notice and this permission notice shall be included in all copies or 
00010  * substantial portions of the Software.
00011  *
00012  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING 
00013  * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
00014  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
00015  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
00016  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00017  */
00018 
00019 #include "CmdDataSessionKey.h"
00020 
00021 CmdDataSessionKey::CmdDataSessionKey(mDot* dot, mts::MTSSerial& serial) :
00022     Command(dot, "Data Session Key", "AT+DSK", "Data session encryption key (16 bytes)"), _serial(serial)
00023 {
00024     _help = std::string(text()) + ": " + std::string(desc());
00025     _usage = "(hex:16)";
00026     _queryable = true;
00027 }
00028 
00029 uint32_t CmdDataSessionKey::action(std::vector<std::string> args)
00030 {
00031     if (args.size() == 1)
00032     {
00033         if (_dot->getVerbose())
00034             _serial.writef("Data Session Key: ");
00035         _serial.writef("%s\r\n", mts::Text::bin2hexString(_dot->getDataSessionKey(), ".").c_str());
00036     }
00037     else if (args.size() == 2)
00038     {
00039         int32_t code;
00040         std::vector<uint8_t> NewKey;
00041 
00042         // Read in the key components...
00043         readByteArray(args[1], NewKey, KEY_LENGTH);
00044 
00045         if ((code = _dot->setDataSessionKey(NewKey)) == mDot::MDOT_OK) {
00046             _serial.writef("Set Data Session Key: ");
00047             _serial.writef("%s\r\n", mts::Text::bin2hexString(NewKey, ".").c_str());
00048         } else {
00049             std::string error = mDot::getReturnCodeString(code) + " - " + _dot->getLastError();
00050             setErrorMessage(error);
00051             return 1;
00052         }
00053     }
00054 
00055     return 0;
00056 }
00057 
00058 bool CmdDataSessionKey::verify(std::vector<std::string> args)
00059 {
00060     if (args.size() == 1)
00061         return true;
00062 
00063     if (args.size() == 2) {
00064         if (!isHexString(args[1], 16)) {
00065             setErrorMessage("Invalid key, expects (hex:16)");
00066             return false;
00067         }
00068 
00069         return true;
00070     }
00071 
00072     setErrorMessage("Invalid arguments");
00073     return false;
00074 }