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Putting the actual OpenBTS P2.8 source code into the public SVN branch.

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git-svn-id: http://wush.net/svn/range/software/public/openbts/trunk@2242 19bc5d8c-e614-43d4-8b26-e1612bc8e597
This commit is contained in:
David Burgess
2011-10-07 02:40:51 +00:00
parent f367b8728b
commit c0a5c1509e
218 changed files with 217437 additions and 0 deletions
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101
GSM/GSMSAPMux.cpp Normal file
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/*
* Copyright 2008, 2009 Free Software Foundation, Inc.
*
* This software is distributed under the terms of the GNU Affero Public License.
* See the COPYING file in the main directory for details.
*
* This use of this software may be subject to additional restrictions.
* See the LEGAL file in the main directory for details.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "GSMSAPMux.h"
#include "GSMTransfer.h"
#include "GSML1FEC.h"
#include "GSML2LAPDm.h"
#include <Logger.h>
using namespace GSM;
void SAPMux::writeHighSide(const L2Frame& frame)
{
// The SAP may or may not be present, depending on the channel type.
OBJLOG(DEBUG) << frame;
ScopedLock lock(mLock);
mDownstream->writeHighSide(frame);
}
void SAPMux::writeLowSide(const L2Frame& frame)
{
OBJLOG(DEBUG) << frame.SAPI() << " " << frame;
unsigned SAPI = frame.SAPI();
bool data = frame.primitive()==DATA;
if (data && (!mUpstream[SAPI])) {
LOG(WARNING) << "received DATA for unsupported SAP " << SAPI;
return;
}
if (data) {
mUpstream[SAPI]->writeLowSide(frame);
} else {
// If this is a non-data primitive, copy it out to every SAP.
for (int i=0; i<4; i++) {
if (mUpstream[i]) mUpstream[i]->writeLowSide(frame);
}
}
}
void LoopbackSAPMux::writeHighSide(const L2Frame& frame)
{
OBJLOG(DEBUG) << "Loopback " << frame;
// Substitute primitive
L2Frame newFrame(frame);
unsigned SAPI = frame.SAPI();
switch (frame.primitive()) {
case ERROR: SAPI=0; break;
case RELEASE: return;
default: break;
}
// Because this is a test fixture, as assert here.
// If this were not a text fixture, we would print a warning
// and ignore the frame.
assert(mUpstream[SAPI]);
ScopedLock lock(mLock);
mUpstream[SAPI]->writeLowSide(newFrame);
}
void LoopbackSAPMux::writeLowSide(const L2Frame& frame)
{
assert(mDownstream);
L2Frame newFrame(frame);
mDownstream->writeHighSide(newFrame);
}
// vim: ts=4 sw=4