mirror of
https://github.com/fairwaves/openbts-2.8.git
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508962442c
git-svn-id: http://wush.net/svn/range/software/public/openbts/trunk@2242 19bc5d8c-e614-43d4-8b26-e1612bc8e597
102 lines
2.5 KiB
C++
102 lines
2.5 KiB
C++
/*
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* Copyright 2008, 2009 Free Software Foundation, Inc.
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*
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* This software is distributed under the terms of the GNU Affero Public License.
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* See the COPYING file in the main directory for details.
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*
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* This use of this software may be subject to additional restrictions.
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* See the LEGAL file in the main directory for details.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "GSMSAPMux.h"
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#include "GSMTransfer.h"
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#include "GSML1FEC.h"
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#include "GSML2LAPDm.h"
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#include <Logger.h>
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using namespace GSM;
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void SAPMux::writeHighSide(const L2Frame& frame)
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{
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// The SAP may or may not be present, depending on the channel type.
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OBJLOG(DEBUG) << frame;
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ScopedLock lock(mLock);
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mDownstream->writeHighSide(frame);
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}
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void SAPMux::writeLowSide(const L2Frame& frame)
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{
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OBJLOG(DEBUG) << frame.SAPI() << " " << frame;
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unsigned SAPI = frame.SAPI();
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bool data = frame.primitive()==DATA;
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if (data && (!mUpstream[SAPI])) {
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LOG(WARNING) << "received DATA for unsupported SAP " << SAPI;
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return;
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}
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if (data) {
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mUpstream[SAPI]->writeLowSide(frame);
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} else {
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// If this is a non-data primitive, copy it out to every SAP.
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for (int i=0; i<4; i++) {
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if (mUpstream[i]) mUpstream[i]->writeLowSide(frame);
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}
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}
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}
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void LoopbackSAPMux::writeHighSide(const L2Frame& frame)
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{
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OBJLOG(DEBUG) << "Loopback " << frame;
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// Substitute primitive
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L2Frame newFrame(frame);
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unsigned SAPI = frame.SAPI();
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switch (frame.primitive()) {
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case ERROR: SAPI=0; break;
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case RELEASE: return;
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default: break;
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}
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// Because this is a test fixture, as assert here.
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// If this were not a text fixture, we would print a warning
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// and ignore the frame.
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assert(mUpstream[SAPI]);
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ScopedLock lock(mLock);
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mUpstream[SAPI]->writeLowSide(newFrame);
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}
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void LoopbackSAPMux::writeLowSide(const L2Frame& frame)
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{
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assert(mDownstream);
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L2Frame newFrame(frame);
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mDownstream->writeHighSide(newFrame);
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}
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// vim: ts=4 sw=4
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