ostinato/common/sign.h
Srivats P 21ce331c43 Create a Tx Ttag tracker thread
For now we are just debug printing timestamp with T-TagId and GUID. We
need to store this tuple and compare when we Rx the same - this will be
in a upcoming commit.
2023-05-26 11:31:52 +05:30

102 lines
2.9 KiB
C++

/*
Copyright (C) 2016 Srivats P.
This file is part of "Ostinato"
This is free software: you can redistribute it and/or modify
it under the terms of the GNU 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>
*/
#ifndef _SIGN_H
#define _SIGN_H
#include "abstractprotocol.h"
#include "sign.pb.h"
/*
Sign Protocol is expected at the end of the frame (just before the Eth FCS)
---+--------+-------+
. . .| TLV(s) | Magic |
| (8+) | (32) |
---+--------+-------+
Figures in brackets represent field width in bits
TLVs are encoded as
+-------+-----+------+
| Value | Len | Type |
| (...) | (3) | (5) |
+-------+-----+------+
Len does NOT include the one byte of TypeLen
Size of the value field varies between 0 to 7 bytes
Defined TLVs
Type = 0, Len = 0 (0x00): End of TLVs
Type = 1, Len = 3 (0x61): Stream GUID
Type = 2, Len = 1 (0x22): T-Tag Placeholder (0 value)
Type = 3, Len = 1 (0x23): T-Tag with actual value
*/
class SignProtocol : public AbstractProtocol
{
public:
enum samplefield
{
// Frame Fields
sign_tlv_end = 0,
sign_tlv_guid,
sign_tlv_ttag,
sign_magic,
// Meta Fields
// - None
sign_fieldCount
};
SignProtocol(StreamBase *stream, AbstractProtocol *parent = 0);
virtual ~SignProtocol();
static AbstractProtocol* createInstance(StreamBase *stream,
AbstractProtocol *parent = 0);
virtual quint32 protocolNumber() const;
virtual void protoDataCopyInto(OstProto::Protocol &protocol) const;
virtual void protoDataCopyFrom(const OstProto::Protocol &protocol);
virtual QString name() const;
virtual QString shortName() const;
virtual int fieldCount() const;
virtual AbstractProtocol::FieldFlags fieldFlags(int index) const;
virtual QVariant fieldData(int index, FieldAttrib attrib,
int streamIndex = 0) const;
virtual bool setFieldData(int index, const QVariant &value,
FieldAttrib attrib = FieldValue);
static quint32 magic();
static bool packetGuid(const uchar *pkt, int pktLen, uint *guid);
static bool packetTtagId(const uchar *pkt, int pktLen, uint *ttagId, uint *guid);
static const quint32 kMaxGuid = 0x00ffffff;
static const quint8 kTypeLenTtagPlaceholder = 0x22;
static const quint8 kTypeLenTtag = 0x23;
private:
static const quint32 kSignMagic = 0x1d10c0da; // coda! (unicode - 0x1d10c)
static const quint8 kTypeLenEnd = 0x00;
static const quint8 kTypeLenGuid = 0x61;
OstProto::Sign data;
};
#endif