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DRDE/AusRegCliever/include/mdcommon.h

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/**
* \mainpage AusReg Cliever
*
* <br><hr>
*
* \par About
* \par
* <a href="http://dnseppus.meansofproduction.biz/doc/ausregcliever">The Generics Document</a>
*
* \htmlonly
* \endhtmlonly
*
* <br><hr>
*
* \par AusReg Cliever requirements
*
* The AusReg Cliever was originally developed on Debian Wheezy 64 but
* should compile on any Unix where all of the requirements are present. The master
* daemon programs was developed for a cluster but in this design that's cut back to
* a stub.
*
*
* <br><hr>
*
* \par Access AusReg Cliever source code
*
*
* See 'DEVOPS" at the delivert/support site
*
*
*
* <br><hr>
*
* \par Top Level External Dependencies... and version currently used
* <br>
* \b boost: 1.49 <br>
* \b log4cpp: 1.0 <br>
* \b AusRegTk: 1.3.2 <br>
* <br>
* See the Tk for its' dependencies, besides that and above everything should be in the git tree.
*
* <br><hr>
*
* mdcommon.h - Core Daemon Level definitions.
*
* \par Authors Support Site
*
* \htmlonly <a href=http://dnseppus.meansofproduction.biz/doc/drkoeln.de>Delivery/Suppor site</a> \endhtmlonly
*
* \par License
* juan@acm.org for Secura
*
*/
#ifndef MD_COMMON
#define MD_COMMON
#include<boost/asio/datagram_socket_service.hpp>
using namespace std;
using boost::asio::ip::udp;
#define MAX_SCENARIO 1 // defined by increasing assumption of control from TK
#define MAX_AC 1
#define MAX_CLIENTS 1
#define MAX_CLIEVER 10
#define MAX_PEER 10
#define MAX_DEBUG 1000 // Set the config parm higher than this to inhibit logNdebug(m...) where m < this
#define MAX_DEVICE MAX_PEER + MAX_CLIEVER + MAX_CLIENTS + 1
#define MD_EPOCH date()
#define MD_HEARTBEAT 1 // Network peer heartbeat in seconds.
#define MD_MAX_DATAGRAM (32*1024) // half of the IPV4 max
#define MD_REFRESH 10 // default milliseconds between API frame updates
#define MD_TYPE "EPPPEER"
#define NORMAL_DEBUG 10
#ifndef CURRENT_DEBUG
#define CURRENT_DEBUG NORMAL_DEBUG
#endif
#define NOT_OK -1
#ifndef OK
#define OK 0
#endif
#define RUNNING_DIR "/tmp"
#define theMachine thisConfig->machine[thisConfig->thisMachineContext]
enum md_mand {
MD_NAM, // Not a Mand.
MD_USER_MAND, // User defined mand type
MD_EPP, // RFC defined type
MD_RULE_ACTION,
MD_CLIEVER_CMD, // From CD command loop or other UI
MD_CLIENT_CMD, // From APIG to MD
MD_NMANDS
};
enum mdErrorCode { // In auc-md/kb index to masterDaemonConfig.err
MDERR_OK,
MDERR_MISSING,
MDERR_EXISTS,
MDERR_CONFLICT,
MDERR_NOTREADY,
MDERR_SYNTAX,
N_MDSTDERR
};
enum md_dispatch_category {
MD_NEWBORN = 0, // inbound this isn't dispatched
CD_FRAME,
MD_FRAME,
DV_MDQUERY,
MD_SHUTDOWN
};
enum md_device {
MDDEV_MD = 0,
MDDEV_CD,
MDDEV_CLIENT,
MDDEV_PEER,
MACHINE,
N_MDDEV_TYPES
};
enum md_units {
MD_UNITS_UNDEFINED = 0,
N_MD_UNITS
};
enum mdDGtype {
MDDG_HEARTBEAT = 0,
MDDG_DEVICEHB,
MDDG_NEWBORN,
MDDG_MDQUERY,
MDDG_REGSCPI,
MDDG_REGOBS,
MDDG_REGODE,
MDDG_TELEMETRY,
MDDG_CDRESET,
N_MDDG_TYPES
};
enum acTKScenario {
ACTK_ALONE = 0,
ACTK_INSECURE,
ACTK_OTEA,
N_ACTK_SCENARIOS
};
typedef
struct MD_DG_TYPE {
unsigned inBandOnly : 1;
unsigned requiresAck : 1;
unsigned isAckNak : 1;
unsigned value : 1; // i.e. boolean for ack/nak etc. where true = ack.
unsigned reserved : 4;
unsigned clieverGroup : 8; // masterDaemonConfig.thisMachineContext
unsigned reserved2 : 16;
}
mdDGflags;
typedef
struct MD_DG_HEADER {
mdDGtype msgType;
mdDGflags dgType;
mdDGtype dgSubType;
int msgSN; // Ordinal in a dialog
md_device clientType;
int sourceHandle;
int sinkHandle;
int handle; // for example if query about a device other than source or sink.
mdErrorCode ec;
int payloadSize;
int primeOffset; // for example to the name associated with the data
}
mdDGHeader;
typedef
struct MD_DATAGRAM {
mdDGHeader hdr;
char payLoad[MD_MAX_DATAGRAM - (sizeof(mdDGHeader))];
}
mdDatagram;
typedef
struct MD_REPLY {
mdDGHeader hdr;
char payLoad[512 - sizeof(mdDGHeader)];
}
mdDGReply;
class mdReply {
public:
mdDGReply dg;
mdReply() {memset((void *)&dg,0,sizeof(mdDGReply));
dg.hdr.dgType.isAckNak = true;
}
};
#if (defined(MD_MAIN) || defined(CD_MAIN) )
const char *clientTypes[N_MDDEV_TYPES ] = { "Master Daemon", "Cliever", "MD Client" };
#else
extern const char *clientTypes[N_MDDEV_TYPES];
#endif
/* \brief mdProcess
* Abstract base class of various subprocesses
*
* AC is (potentially) a distributed system with various subprocesses
* spanning the central server, the 'Cliever' middleware component and clients.
* Root class for these.
*
*/
class mdWQitem {
public:
md_dispatch_category kind;
const void *what;
int user; // User defined
mdWQitem (const void *work,md_dispatch_category priority,int x)
: what(work), kind(priority), user(x) {}
bool operator< (const mdWQitem & right) const {
return kind < right.kind;
}
};
typedef std::priority_queue < mdWQitem* > MDWQ;
class mdProcess {
public: MDWQ q;
mdProcess() {}
~mdProcess() {}
void queue(mdWQitem *w) {q.push(w);}
virtual void dispatch(mdWQitem *w)=0;
virtual void run() = 0;
};
#define MD_DEFAULT_DEVICE_PROTOCOL 0
#define MD_DEFAULT_RULE 0
typedef
struct {
unsigned open:1;
unsigned looped:1; // back channel established from passive connection.
unsigned reserved:30;
} mdCnctBool;
typedef
struct MD_CONTROL_BLOCK
{int handle; // debug mark
mdCnctBool connection;
boost::asio::ip::udp::endpoint ep;
boost::asio::ip::udp::resolver::iterator it;
boost::asio::ip::udp::socket *udp;
MD_CONTROL_BLOCK() {
handle = 0;
memset((void *)&connection,0,sizeof(connection));
udp = NULL;
}
}
mdCB;
typedef std::map<int,mdCB*> mdStdDevicePODMap; // MD Standard Device Map -
/*
*\brief stdDev: collection with MD at: 0, CD in: 1 to MAX_CLIEVER,
* PEERS in: MAX_CLIEVER + 1 to - MAX_CLIEVER+1+MAX_PEER,
*
* The mdStdDevIdx of a device is its index above.
* Within intervals clients are assigned compactly in the same order as thier handles are created and assigned.
*/
#if (defined(MD_MAIN) || defined(CD_MAIN) )
mdStdDevicePODMap cb;
int myStdDevIdx=MAX_CLIENTS+1; // global default to localhost
#else
extern mdStdDevicePODMap cb;
extern int myStdDevIdx;
#endif
class mdDGChannel
{public:
boost::asio::io_service& io_service_;
boost::asio::ip::udp::endpoint p_endpoint_;
boost::asio::ip::udp::endpoint a_endpoint_;
boost::asio::ip::udp::endpoint *ep_;
boost::asio::ip::udp::resolver *r;
boost::asio::ip::udp::resolver::query *q;
boost::asio::ip::udp::socket passive_;
boost::asio::ip::udp::socket *active_;
boost::asio::ip::udp::socket *s_;
char ack_[sizeof(mdDGReply)];
char data_[MD_MAX_DATAGRAM];
int mdStdDevIdx;
mdDatagram *inProcess;
mdReply *reply;
short port;
mdDGChannel(boost::asio::io_service& io_service,
short inport, int stdDevIdx=myStdDevIdx)
: io_service_(io_service), mdStdDevIdx(stdDevIdx),
passive_(io_service, udp::endpoint(udp::v4(), inport))
{
inProcess = (mdDatagram *)data_;
ep_ = &p_endpoint_;
port = inport;
reply = (mdReply *)ack_;
q = NULL;
r = NULL;
s_ = &passive_;
passive_.async_receive_from(
boost::asio::buffer(data_, MD_MAX_DATAGRAM), p_endpoint_,
boost::bind(&mdDGChannel::handle_receive_from, this,
boost::asio::placeholders::error,
boost::asio::placeholders::bytes_transferred));
}
void async_send(mdDatagram &dg) {
size_t dgSize = sizeof(mdDGHeader) + dg.hdr.payloadSize;
*inProcess = dg;
//std::memcpy(this->data_,(char *)&dg,dgSize);
active_->async_send_to(
boost::asio::buffer(data_, dgSize), *ep_,
boost::bind(&mdDGChannel::handle_send_to, this,
boost::asio::placeholders::error,
boost::asio::placeholders::bytes_transferred));
}
bool connect_to (std::string &host, std::string &port, int stdDevIdx=-1) {
bool value = false;
int rport = atoi(port.c_str());
boost::system::error_code ec;
boost::asio::ip::udp::endpoint remote ( boost::asio::ip::address::from_string(host.c_str()), rport);
stdDevIdx = (stdDevIdx == -1) ? mdStdDevIdx : stdDevIdx;
map<int,mdCB *>::iterator iter = cb.find(stdDevIdx);
if( iter == cb.end() ) cb[stdDevIdx] = new mdCB();
try {
if (!r) r = new udp::resolver(io_service_);
if ( q) delete q;
q = new udp::resolver::query(udp::v4(), host.c_str(), port.c_str());
cb[stdDevIdx]->it = r->resolve(*q);
if (!cb[mdStdDevIdx]->udp)
cb[mdStdDevIdx]->udp = new udp::socket(io_service_, udp::endpoint(udp::v4(), 0));
active_ = cb[mdStdDevIdx]->udp;
if (active_->is_open())
active_->connect(remote,ec);
if (!ec) value = true;
}
catch(...) {}
return (cb[stdDevIdx]->connection.open=value);
}
bool connect_to (boost::asio::ip::udp::endpoint &ep,boost::system::error_code &ec,int &step,int stdDevIdx=-1)
{
bool value = false;
stdDevIdx = stdDevIdx == -1 ? mdStdDevIdx : stdDevIdx;
map<int,mdCB *>::iterator iter = cb.find(stdDevIdx);
if( iter == cb.end() ) cb[stdDevIdx] = new mdCB();
try { if (cb[stdDevIdx]->udp) {if (cb[stdDevIdx]->udp->is_open())
cb[stdDevIdx]->udp->close();
delete cb[stdDevIdx]->udp;}
cb[stdDevIdx]->ep = ep;
active_ = cb[stdDevIdx]->udp = new boost::asio::ip::udp::socket( io_service_ , udp::endpoint(udp::v4(), 0) );
ec.clear();
active_->connect( cb[stdDevIdx]->ep, ec );
if (active_->is_open()) { value = true; cb[stdDevIdx]->connection.open=1; }
else {
step++;
active_->open( udp::v4(), ec );
if (active_->is_open()) {value = true; cb[stdDevIdx]->connection.open=1; }
}
}
catch(boost::system::system_error &be) {boost::system::system_error warning = be;}
catch(...) {}
return (value);
}
void handle_receive_from(const boost::system::error_code& error, size_t bytes_recvd);
void handle_send_to(const boost::system::error_code& asioEC, size_t sentByes)
{
size_t dgSize = inProcess->hdr.dgType.requiresAck
? sizeof(mdReply) : sizeof(mdDatagram);
// std::string debugMsg = asioEC.message();
if (inProcess->hdr.dgType.requiresAck)
active_->async_receive_from(
boost::asio::buffer(ack_, dgSize), *ep_,
boost::bind(&mdDGChannel::handle_receive_from, this,
boost::asio::placeholders::error,
boost::asio::placeholders::bytes_transferred));
else
active_->async_receive_from(
boost::asio::buffer(data_, dgSize), *ep_,
boost::bind(&mdDGChannel::handle_receive_from, this,
boost::asio::placeholders::error,
boost::asio::placeholders::bytes_transferred));
}
bool send(mdDatagram &dg) {
size_t dgSize = sizeof(mdDGHeader) + dg.hdr.payloadSize;
return (dgSize ==
active_->send(boost::asio::buffer((void *)&dg, dgSize)));
}
bool send_to(mdDatagram &dg, int mdStdDevIdx) {
size_t dgSize = sizeof(mdDGHeader) + dg.hdr.payloadSize;
return (dgSize ==
active_->send_to(boost::asio::buffer((void *)&dg, dgSize), *cb[mdStdDevIdx]->it));
}
size_t send(mdReply &dg, boost::system::error_code &ec) {
size_t dgSize = sizeof(mdDGReply);
boost::asio::socket_base::message_flags flags=0;
return (active_->send(boost::asio::buffer((void *)&dg, dgSize), flags, ec));
}
size_t send_back(mdReply &dg, boost::system::error_code &ec, int &step) {
size_t dgSize = sizeof(mdDGReply);
boost::asio::socket_base::message_flags flags=0;
step = 1;
a_endpoint_ = passive_.remote_endpoint(ec);
if (ec) return 0;
return (passive_.send_to(boost::asio::buffer((void *)&dg, dgSize), a_endpoint_, flags, ec));
}
bool send_to(mdReply &dg,int mdStdDevIdx) {
size_t dgSize = sizeof(mdDGReply);
return (dgSize ==
active_->send_to(boost::asio::buffer((void *)&dg, dgSize), *cb[mdStdDevIdx]->it));
}
};
typedef std::map<int,std::string> mdErrMsgMap;
class mdError {
int instance;
mdErrMsgMap text;
public:
mdError() { text[0] = std::string("OK");
instance = 0;
}
~mdError() {}
// The below populate the additional messages;
// Instances below 1000 are reserved for system errors, negative
// integers not used.
// Users derive from this class and implement additionalUsrMsgs.
void additionalUserMsg(int instCode,const char *msgText)
{if (instCode >= 1000) text[instCode] = std::string(msgText);}
void additionalSystemMsg(int instCode,const char *msgText)
{if (instCode < 1000 && instCode >0) text[instCode] = std::string(msgText);}
int get() {return instance;}
void get(mdError **parentPtr)
{*parentPtr = this;}
void set(int i) {instance = i;}
const char *what(char *buffer=NULL) {
if (text.find(get()) == text.end()) {
{if (!buffer) return NULL;
sprintf(buffer,"Unknown error code: %d",get());
return buffer;
}
return text[get()].c_str();
}
return "unknown";
}
};
class mdDG {
public:
mdDatagram dg;
mdDG() {memset(&dg,0,sizeof(mdDatagram));}
};
#endif
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