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Update GPRS attach according to 3GPP TS 24.008 version 12.8.0 Release 12... #9

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Update GPRS attach according to 3GPP TS 24.008 version 12.8.0 Release 12... #9

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20 changes: 20 additions & 0 deletions SGSNGGSN/GPRSL3Messages.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -367,6 +367,22 @@ void GMMAttach::gmParseIEs(L3GmmFrame &src, size_t &rp, const char *culprit)
mTmsiStatus = iei & 1;
continue;
}
if ((iei & 0xf0) == 0xd0) {
// 10.5.7.8 Device properties. Ignore for now
continue;
}
if ((iei & 0xf0) == 0xe0) {
// 10.5.5.29 P-TMSI type. Ignore for now
continue;
}
if ((iei & 0xf0) == 0xc0) {
// 10.5.1.15 MS network feature support. Ignore for now
continue;
}
if ((iei & 0xf0) == 0xf0) {
// 10.5.5.0 Additional update type. Ignore for now
continue;
}
switch (iei) {
case 0x19: // TV Old P-TMSI signature.
// Dont have a 3 byte 'read' function so use getField then advance rp by 3.
Expand All @@ -385,6 +401,10 @@ void GMMAttach::gmParseIEs(L3GmmFrame &src, size_t &rp, const char *culprit)
// The specified length is of the ie itself, excluding the iei type and length byte.
// Get the length, but dont move rp - let the IEs do that, because
// some of them need the length byte.
if (rp >= src.size()) {
SGSNERROR("invalid message size in "<<culprit <<" bytes="<<src.hexstr());
return;
}
int len = src.getByte(rp);
size_t nextrp = rp + len + 1;
if (nextrp > src.size()) { // last one will have nextrp == src.size()
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