ReturnCode AB::decode(NetworkBuffer& buffer) {
SPDU::control(buffer);
if (sli() == 0)
return OK;
ReturnCode rc = OK;
while (buffer.hasRemaining()) {
buffer.markit();
byte code = buffer.get();
switch (code) {
case PI::PI_TDISC: {
TDISC* pi = new TDISC(buffer);
ab_disconnect = pi->getValue();
addMask(SMASK_AB_DISC);
}
break;
case PI::PI_REFLECT: {
REFLECT* pi = new REFLECT(buffer);
int length = 0;
memcpy(ab_reflect, pi->getValue(length), length);
addMask(SMASK_AB_REFL);
}
break;
case PI::PI_ENCLOSE: {
ENCLOSE* pi = new ENCLOSE(buffer);
setEnclose(pi->getValue());
addMask(SMASK_ENCLOSE);
}
break;
case PI::PI_UDATA: {
UDATA* pi = new UDATA(buffer);
int length = 0;
const byte* data;
data = pi->getValue(length);
setData(length, data);
addMask(SMASK_ENCLOSE);
}
break;
default:
buffer.reset();
goto EXIT;
}
}
EXIT:
return rc;
}
ReturnCode AEA::decode(NetworkBuffer& tsdu) {
ReturnCode rc = OK;
rc = SPDU::control(tsdu);
if (sli() == 0)
return OK;
while (tsdu.hasRemaining()) {
tsdu.markit();
byte code = tsdu.get();
switch (code) {
case PI::PI_SERIAL: {
SERIAL pi(tsdu);
aea_serial = pi.getValue();
addMask(SMASK_AEA_SERIAL);
}
break;
case PI::PI_ENCLOSE: {
ENCLOSE pi(tsdu);
setEnclose(pi.getValue());
addMask(SMASK_ENCLOSE);
}
break;
case PI::PI_UDATA: {
UDATA pi(tsdu);
int cc = 0;
const byte* data = pi.getValue(cc);
setData(cc, data);
}
break;
default:
tsdu.reset();
goto EXIT;
}
}
EXIT:
return rc;
}
ReturnCode CN_AC::decode(NetworkBuffer& tsdu) {
SPDU::control(tsdu);
if (sli() == 0)
return OK;
ReturnCode rc = OK;
while (tsdu.hasRemaining()) {
/*
switch (code) {
case PI_UDATA:
if (!bool(pmask & PMASK_UDATA) || li() > 512)
spkt.spdu_errno = SC_PROTOCOL;
break;
case PI_XDATA:
if (!bool(pmask & PMASK_XDATA) || li() <= 512)
spkt.spdu_errno = SC_PROTOCOL;
break;
default:
if (bool(code < pi_table.length) && bool(pi_table[code])
&& !bool(pmask & pi_table[code]))
spkt.spdu_errno = SC_PROTOCOL;
break;
}
if (code < pi_table.length && bool(pi_table[code])&& !bool(pi_table[code] & PMASK_PGI)) {
if (li() > 0) {
if (bool(pi_table[code] & PMASK_VARLEN)) {
if (li() > pi_length[code]) {
spkt.spdu_errno = SC_PROTOCOL;
// break;
}
} else
if (li() != pi_length[code]) {
spkt.spdu_errno = SC_PROTOCOL;
// break;
}
}
}
*/
tsdu.markit();
byte code = tsdu.get() & 0xFF;
switch (code) {
case PGI::PGI_CN_ID: {
CN_ID pi(*this, tsdu);
addMask(SMASK_CN_REF);
}
break;
case PGI::PGI_CN_ITEMS: {
CN_ITEMS pgi(*this, tsdu);
addMask(SMASK_CN_REF);
}
break;
case PI::PI_CALLED_SS: {
CALLED_SS pi(tsdu);
int length = 0;
const byte* data = pi.getValue(length);
cn_reference.udata(length, data);
addMask(SMASK_CN_REF);
}
break;
case PI::PI_CALLING_SS: {
// case PI_AR_CALLED:
// case PI_AR_CALLING:
CALLING_SS pi(tsdu);
int length = 0;
const byte* data = pi.getValue(length);
cn_reference.udata(length, data);
addMask(SMASK_CN_REF);
}
break;
case PI::PI_COMMON_REF: {
// case PI_AR_COMMON:
COMMON_REF pi(tsdu);
int length = 0;
const byte* data = pi.getValue(length);
cn_reference.cdata(length, data);
addMask(SMASK_CN_REF);
}
break;
case PI::PI_ADD_INFO: {
// case PI_AR_ADDT:
ADD_INFO pi(tsdu);
int length = 0;
const byte* data = pi.getValue(length);
cn_reference.adata(length, data);
addMask(SMASK_CN_REF);
}
break;
case PI::PI_VERSION: {
VERSION pi(tsdu);
cn_version = pi.getValue();
addMask(SMASK_CN_VRSN);
}
break;
case PI::PI_USER_REQ: {
USER_REQ pi(tsdu);
cn_require = pi.getValue();
addMask(SMASK_CN_REQ);
}
break;
case PI::PI_ISN: {
ISN pi(tsdu);
cn_isn = pi.getValue();
addMask(SMASK_CN_ISN);
}
break;
case PI::PI_TOKEN: {
if (si() != SPDU_AC) {
//FIXME throw exception
}
TOKEN pi(tsdu);
ac_token = pi.getValue();
addMask(SMASK_AC_TOKEN);
}
break;
case PI::PI_TOISN: {/* not supported yet */
}
break;
case PI::PI_SSAP_CALLING: {
SSAP_CALLING pi(tsdu);
int length = 0;
const byte* data = pi.getValue(length);
cn_callinglen = pi.pli();
//FIXME check cn_callinglen == length
memcpy(cn_calling, data, min(cn_callinglen, sizeof(cn_calling)));
addMask(SMASK_CN_CALLING);
}
break;
case PI::PI_SSAP_CALLED: {
SSAP_CALLED pi(tsdu);
int length = 0;
const byte* data = pi.getValue(length);
cn_calledlen = pi.pli();
//FIXME check cn_callinglen == length
memcpy(cn_called, data, min(cn_calledlen, sizeof(cn_calling)));
addMask(SMASK_CN_CALLED);
}
break;
case PI::PI_UDATA: {
UDATA pi(tsdu);
addMask(SMASK_UDATA_PGI);
if (pi.pli() > 0) {
// if (si() == SPDU_AB && !spkt.hasMask(SMASK_SPDU_AB)) {
// throw SSAPException(SC_PROTOCOL);
// } else
if (pi.pli() > MAX_CONNECT_DATA_SIZE) {
throw Exception(AbortCode::SC_PROTOCOL);
}
int length = 0;
const byte* data = pi.getValue(length);
setData(length, data);
}
}
break;
case PI::PI_XDATA: {
XDATA pi(tsdu);
addMask(SMASK_UDATA_PGI);
if (pi.pli() > 0) {
// if (si() == SPDU_AB && !spkt.hasMask(SMASK_SPDU_AB)) {
// throw SSAPException(SC_PROTOCOL);
// } else
if (pi.pli() > MAX_CONNECT_DATA_SIZE) {
throw Exception(AbortCode::SC_PROTOCOL);
}
int length = 0;
const byte* data = pi.getValue(length);
setData(length, data);
}
}
break;
default:
tsdu.reset();
goto EXIT;
}
}
EXIT:
return rc;
}