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/* C:B**************************************************************************
This software is Copyright 2014-2017 Bright Plaza Inc. <drivetrust@drivetrust.com>
This file is part of sedutil.
sedutil is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
sedutil is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with sedutil. If not, see <http://www.gnu.org/licenses/>.
* C:E********************************************************************** */
#include "os.h"
#include "DtaResponse.h"
#include "DtaEndianFixup.h"
using namespace std;
DtaResponse::DtaResponse()
{
LOG(D1) << "Creating DtaResponse()";
}
DtaResponse::DtaResponse(void * buffer)
{
LOG(D1) << "Creating DtaResponse(buffer)";
init(buffer);
}
void
DtaResponse::init(void * buffer)
{
LOG(D1) << "Entering DtaResponse::init";
std::vector<uint8_t> bytestring, empty_atom(1, 0xff);
uint8_t * reply = (uint8_t *) buffer;
uint32_t cpos = 0;
uint32_t tokenLength;
memcpy(&h, buffer, sizeof (OPALHeader));
response.clear();
reply += sizeof (OPALHeader);
while (cpos < SWAP32(h.subpkt.length)) {
bytestring.clear();
if (!(reply[cpos] & 0x80)) //tiny atom
tokenLength = 1;
else if (!(reply[cpos] & 0x40)) // short atom
tokenLength = (reply[cpos] & 0x0f) + 1;
else if (!(reply[cpos] & 0x20)) // medium atom
tokenLength = (((reply[cpos] & 0x07) << 8) | reply[cpos + 1]) + 2;
else if (!(reply[cpos] & 0x10)) // long atom
tokenLength = ((reply[cpos + 1] << 16) | (reply[cpos + 2] << 8) | reply[cpos + 3]) + 4;
else // TOKEN
tokenLength = 1;
for (uint32_t i = 0; i < tokenLength; i++) {
bytestring.push_back(reply[cpos++]);
}
if (bytestring != empty_atom)
response.push_back(bytestring);
}
}
OPAL_TOKEN DtaResponse::tokenIs(uint32_t tokenNum)
{
LOG(D1) << "Entering DtaResponse::tokenIs";
if (!(response[tokenNum][0] & 0x80)) { //tiny atom
if ((response[tokenNum][0] & 0x40))
return OPAL_TOKEN::DTA_TOKENID_SINT;
else
return OPAL_TOKEN::DTA_TOKENID_UINT;
}
else if (!(response[tokenNum][0] & 0x40)) { // short atom
if ((response[tokenNum][0] & 0x20))
return OPAL_TOKEN::DTA_TOKENID_BYTESTRING;
else if ((response[tokenNum][0] & 0x10))
return OPAL_TOKEN::DTA_TOKENID_SINT;
else
return OPAL_TOKEN::DTA_TOKENID_UINT;
}
else if (!(response[tokenNum][0] & 0x20)) { // medium atom
if ((response[tokenNum][0] & 0x10))
return OPAL_TOKEN::DTA_TOKENID_BYTESTRING;
else if ((response[tokenNum][0] & 0x08))
return OPAL_TOKEN::DTA_TOKENID_SINT;
else
return OPAL_TOKEN::DTA_TOKENID_UINT;
}
else if (!(response[tokenNum][0] & 0x10)) { // long atom
if ((response[tokenNum][0] & 0x02))
return OPAL_TOKEN::DTA_TOKENID_BYTESTRING;
else if ((response[tokenNum][0] & 0x01))
return OPAL_TOKEN::DTA_TOKENID_SINT;
else
return OPAL_TOKEN::DTA_TOKENID_UINT;
}
else // TOKEN
return (OPAL_TOKEN) response[tokenNum][0];
}
uint32_t DtaResponse::getLength(uint32_t tokenNum)
{
return (uint32_t) response[tokenNum].size();
}
uint64_t DtaResponse::getUint64(uint32_t tokenNum)
{
LOG(D1) << "Entering DtaResponse::getUint64";
if (!(response[tokenNum][0] & 0x80)) { //tiny atom
if ((response[tokenNum][0] & 0x40)) {
LOG(E) << "unsigned int requested for signed tiny atom";
exit(EXIT_FAILURE);
}
else {
return (uint64_t) (response[tokenNum][0] & 0x3f);
}
}
else if (!(response[tokenNum][0] & 0x40)) { // short atom
if ((response[tokenNum][0] & 0x10)) {
LOG(E) << "unsigned int requested for signed short atom";
exit(EXIT_FAILURE);
}
else {
uint64_t whatever = 0;
if (response[tokenNum].size() > 9) { LOG(E) << "UINT64 with greater than 8 bytes"; }
int b = 0;
for (uint32_t i = (uint32_t) response[tokenNum].size() - 1; i > 0; i--) {
whatever |= ((uint64_t)response[tokenNum][i] << (8 * b));
b++;
}
return whatever;
}
}
else if (!(response[tokenNum][0] & 0x20)) { // medium atom
LOG(E) << "unsigned int requested for medium atom is unsupported";
exit(EXIT_FAILURE);
}
else if (!(response[tokenNum][0] & 0x10)) { // long atom
LOG(E) << "unsigned int requested for long atom is unsupported";
exit(EXIT_FAILURE);
}
else { // TOKEN
LOG(E) << "unsigned int requested for token is unsupported";
exit(EXIT_FAILURE);
}
}
uint32_t DtaResponse::getUint32(uint32_t tokenNum)
{
LOG(D1) << "Entering DtaResponse::getUint32";
uint64_t i = getUint64(tokenNum);
if (i > 0xffffffff) { LOG(E) << "UINT32 truncated "; }
return (uint32_t) i;
}
uint16_t DtaResponse::getUint16(uint32_t tokenNum)
{
LOG(D1) << "Entering DtaResponse::getUint16";
uint64_t i = getUint64(tokenNum);
if (i > 0xffff) { LOG(E) << "UINT16 truncated "; }
return (uint16_t) i;
}
uint8_t DtaResponse::getUint8(uint32_t tokenNum)
{
LOG(D1) << "Entering DtaResponse::getUint8";
uint64_t i = getUint64(tokenNum);
if (i > 0xff) { LOG(E) << "UINT8 truncated "; }
return (uint8_t) i;
}
//int64_t DtaResponse::getSint(uint32_t tokenNum) {
// LOG(E) << "DtaResponse::getSint() is not implemented";
//}
std::vector<uint8_t> DtaResponse::getRawToken(uint32_t tokenNum)
{
return response[tokenNum];
}
std::string DtaResponse::getString(uint32_t tokenNum)
{
LOG(D1) << "Entering DtaResponse::getString";
std::string s;
s.erase();
int overhead = 0;
if (!(response[tokenNum][0] & 0x80)) { //tiny atom
LOG(E) << "Cannot get a string from a tiny atom";
exit(EXIT_FAILURE);
}
else if (!(response[tokenNum][0] & 0x40)) { // short atom
overhead = 1;
}
else if (!(response[tokenNum][0] & 0x20)) { // medium atom
overhead = 2;
}
else if (!(response[tokenNum][0] & 0x10)) { // long atom
overhead = 4;
}
else {
LOG(E) << "Cannot get a string from a TOKEN";
return s;
}
for (uint32_t i = overhead; i < response[tokenNum].size(); i++) {
s.push_back(response[tokenNum][i]);
}
return s;
}
void DtaResponse::getBytes(uint32_t tokenNum, uint8_t bytearray[])
{
LOG(D1) << "Entering DtaResponse::getBytes";
int overhead = 0;
if (!(response[tokenNum][0] & 0x80)) { //tiny atom
LOG(E) << "Cannot get a bytestring from a tiny atom";
exit(EXIT_FAILURE);
}
else if (!(response[tokenNum][0] & 0x40)) { // short atom
overhead = 1;
}
else if (!(response[tokenNum][0] & 0x20)) { // medium atom
overhead = 2;
}
else if (!(response[tokenNum][0] & 0x10)) { // long atom
overhead = 4;
}
else {
LOG(E) << "Cannot get a bytestring from a TOKEN";
exit(EXIT_FAILURE);
}
for (uint32_t i = overhead; i < response[tokenNum].size(); i++) {
bytearray[i - overhead] = response[tokenNum][i];
}
}
uint32_t DtaResponse::getTokenCount()
{
LOG(D1) << "Entering DtaResponse::getTokenCount()";
return (uint32_t) response.size();
}
DtaResponse::~DtaResponse()
{
LOG(D1) << "Destroying DtaResponse";
}
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