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r4216 and 4217 in private:

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Make multiple attempts at TCH channel assignment.  (Yes, I saw this do something useful during one test.)
Log abmormal Disconnect and Release at NOTICE level.

Accessors for Cause element in L3 CC Release.

git-svn-id: http://wush.net/svn/range/software/public/openbts/trunk@4350 19bc5d8c-e614-43d4-8b26-e1612bc8e597
This commit is contained in:
kurtis.heimerl
2012-10-26 06:26:15 +00:00
parent 60bcb9a68b
commit f2fc9a09d9
1 changed files with 38 additions and 19 deletions
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57
Control/CallControl.cpp
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@@ -64,6 +64,9 @@ using namespace Control;
// Forward refs.
bool callManagementDispatchGSM(TransactionEntry *transaction, GSM::LogicalChannel* LCH, const GSM::L3Message *message);
@@ -207,34 +210,47 @@ bool assignTCHF(TransactionEntry *transaction, GSM::LogicalChannel *DCCH, GSM::T
TCH->open(); TCH->open();
TCH->setPhy(*DCCH); TCH->setPhy(*DCCH);
// Send the assignment. // We retry this loop in case there are stray messages in the channel.
transaction->channel(TCH); // On some phones, we see repeated Call Confirmed messages on MTC.
LOG(DEBUG) << "updated transaction " << *transaction;
LOG(INFO) << "sending AssignmentCommand for " << *TCH << " on " << *DCCH;
DCCH->send(GSM::L3AssignmentCommand(TCH->channelDescription(),GSM::L3ChannelMode(GSM::L3ChannelMode::SpeechV1)));
// This read is SUPPOSED to time out if the assignment was successful. GSM::Z100Timer retry(GSM::T3101ms-1000);
// Pad the timeout just in case there's a large latency somewhere. retry.set();
GSM::L3Frame *result = DCCH->recv(GSM::T3107ms+2000); while (!retry.expired()) {
if (result==NULL) {
LOG(INFO) << "sucessful assignment; exiting normally"; // Send the assignment.
DCCH->send(GSM::HARDRELEASE); transaction->channel(TCH);
return true; LOG(DEBUG) << "updated transaction " << *transaction;
LOG(INFO) << "sending AssignmentCommand for " << *TCH << " on " << *DCCH;
DCCH->send(GSM::L3AssignmentCommand(TCH->channelDescription(),GSM::L3ChannelMode(GSM::L3ChannelMode::SpeechV1)));
// This read is SUPPOSED to time out if the assignment was successful.
// Pad the timeout just in case there's a large latency somewhere.
GSM::L3Frame *result = DCCH->recv(GSM::T3107ms+2000);
if (!result) {
LOG(INFO) << "sucessful assignment; exiting normally";
DCCH->send(GSM::HARDRELEASE);
return true;
}
// If we got here, the assignment failed, or there was a message backlog in L3.
GSM::L3Message *msg = parseL3(*result);
if (!msg) { LOG(NOTICE) << "waiting for assignment complete, received unparsed L3 frame " << *result; }
delete result;
if (!msg) continue;
LOG(NOTICE) << "waiting for assignment complete, received " << *msg;
callManagementDispatchGSM(transaction,DCCH,msg);
} }
// If we got here, the assignment failed.
LOG(NOTICE) << "received " << *result;
delete result;
// Turn off the TCH. // Turn off the TCH.
TCH->send(GSM::RELEASE); TCH->send(GSM::RELEASE);
// RR Cause 0x04 -- "abnormal release, no activity on the radio path"
DCCH->send(GSM::L3ChannelRelease(0x04));
// Dissociate channel from the transaction. // Dissociate channel from the transaction.
// The tranaction no longer has a channel. // The tranaction no longer has a channel.
transaction->channel(NULL); transaction->channel(NULL);
// RR Cause 0x04 -- "abnormal release, no activity on the radio path"
DCCH->send(GSM::L3ChannelRelease(0x04));
// Shut down the SIP side of the call. // Shut down the SIP side of the call.
forceSIPClearing(transaction); forceSIPClearing(transaction);
// Indicate failure. // Indicate failure.
@@ -310,8 +326,11 @@ bool callManagementDispatchGSM(TransactionEntry *transaction, GSM::LogicalChanne
// Disconnect (1st step of MOD) // Disconnect (1st step of MOD)
// GSM 04.08 5.4.3.2 // GSM 04.08 5.4.3.2
if (dynamic_cast<const GSM::L3Disconnect*>(message)) { if (const GSM::L3Release *rls = dynamic_cast<const GSM::L3Release*>(message)) {
LOG(INFO) << "GSM Disconnect " << *transaction; LOG(INFO) << "GSM Disconnect " << *transaction;
if (rls->haveCause() && (rls->cause().cause() > 0x10)) {
LOG(NOTICE) << "abnormal terminatation: " << *rls;
}
/* late RLLP request */ /* late RLLP request */
if (gConfig.defines("Control.Call.QueryRRLP.Late")) { if (gConfig.defines("Control.Call.QueryRRLP.Late")) {
// Query for RRLP // Query for RRLP