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SCSTracker.c
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/*
Copyright 2001-2015 John Wiseman G8BPQ
This file is part of LinBPQ/BPQ32.
LinBPQ/BPQ32 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.
LinBPQ/BPQ32 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 LinBPQ/BPQ32. If not, see http://www.gnu.org/licenses
*/
//
// DLL to inteface DED Host Mode TNCs to BPQ32 switch
//
// Uses BPQ EXTERNAL interface
#define _CRT_SECURE_NO_WARNINGS
#define _CRT_SECURE_NO_DEPRECATE
#define _USE_32BIT_TIME_T
#include <stdio.h>
#include <stdlib.h>
#include "time.h"
#define MaxStreams 1
#include "CHeaders.h"
#include "tncinfo.h"
//#include "bpq32.h"
static char ClassName[]="TRACKERSTATUS";
static char WindowTitle[] = "SCS Tracker";
static int RigControlRow = 140;
#define NARROWMODE 30
#define WIDEMODE 30 // Robust
extern UCHAR BPQDirectory[];
extern APPLCALLS APPLCALLTABLE[];
extern char * PortConfig[33];
extern char LOC[];
static RECT Rect;
struct TNCINFO * TNCInfo[34]; // Records are Malloc'd
extern char * RigConfigMsg[35];
VOID __cdecl Debugprintf(const char * format, ...);
char * strlop(char * buf, char delim);
char NodeCall[11]; // Nodecall, Null Terminated
struct TNCINFO * CreateTTYInfo(int port, int speed);
BOOL OpenConnection(int);
BOOL SetupConnection(int);
BOOL CloseConnection(struct TNCINFO * conn);
static BOOL WriteCommBlock(struct TNCINFO * TNC);
BOOL DestroyTTYInfo(int port);
static void DEDCheckRX(struct TNCINFO * TNC);
static VOID DEDPoll(int Port);
VOID StuffAndSend(struct TNCINFO * TNC, UCHAR * Msg, int Len);
unsigned short int compute_crc(unsigned char *buf,int len);
int Unstuff(UCHAR * MsgIn, UCHAR * MsgOut, int len);
static VOID ProcessDEDFrame(struct TNCINFO * TNC);
static VOID ProcessTermModeResponse(struct TNCINFO * TNC);
static VOID ExitHost(struct TNCINFO * TNC);
static VOID DoTNCReinit(struct TNCINFO * TNC);
static VOID DoTermModeTimeout(struct TNCINFO * TNC);
VOID DoMonitorHddr(struct TNCINFO * TNC, UCHAR * Msg, int Len, int Type);
VOID DoMonitorData(struct TNCINFO * TNC, UCHAR * Msg, int Len);
int Switchmode(struct TNCINFO * TNC, int Mode);
VOID SwitchToRPacket(struct TNCINFO * TNC, char * Baud);
VOID SwitchToNormPacket(struct TNCINFO * TNC, char * Baud);
VOID SendRPBeacon(struct TNCINFO * TNC);
BOOL APIENTRY Send_AX(PMESSAGE Block, DWORD Len, UCHAR Port);
int DoScanLine(struct TNCINFO * TNC, char * Buff, int Len);
VOID SuspendOtherPorts(struct TNCINFO * ThisTNC);
VOID ReleaseOtherPorts(struct TNCINFO * ThisTNC);
VOID TRKSuspendPort(struct TNCINFO * TNC)
{
struct STREAMINFO * STREAM = &TNC->Streams[0];
STREAM->CmdSet = STREAM->CmdSave = zalloc(100);
sprintf(STREAM->CmdSet, "\1\1\1IDSPTNC");
}
VOID TRKReleasePort(struct TNCINFO * TNC)
{
struct STREAMINFO * STREAM = &TNC->Streams[0];
STREAM->CmdSet = STREAM->CmdSave = zalloc(100);
sprintf(STREAM->CmdSet, "\1\1\1I%s", TNC->NodeCall);
}
static int
ProcessLine(char * buf, int Port)
{
UCHAR * ptr,* p_cmd;
char * p_port = 0;
int BPQport;
int len=510;
struct TNCINFO * TNC;
char errbuf[256];
BPQport = Port;
TNC = TNCInfo[BPQport] = malloc(sizeof(struct TNCINFO));
memset(TNC, 0, sizeof(struct TNCINFO));
TNC->InitScript = malloc(1000);
TNC->InitScript[0] = 0;
strcpy(TNC->NormSpeed, "300"); // HF Packet
goto ConfigLine;
while(TRUE)
{
if (GetLine(buf) == 0)
return TRUE;
ConfigLine:
strcpy(errbuf, buf);
if (memcmp(buf, "****", 4) == 0)
return TRUE;
ptr = strchr(buf, ';');
if (ptr)
{
*ptr++ = 13;
*ptr = 0;
}
if (_memicmp(buf, "APPL", 4) == 0)
{
p_cmd = strtok(&buf[4], " \t\n\r");
if (p_cmd && p_cmd[0] != ';' && p_cmd[0] != '#')
TNC->ApplCmd=_strdup(_strupr(p_cmd));
}
else
// if (_mem`icmp(buf, "PACKETCHANNELS", 14) == 0)
// // Packet Channels
// TNC->PacketChannels = atoi(&buf[14]);
// else
if (_memicmp(buf, "SWITCHMODES", 11) == 0)
{
// Switch between Normal and Robust Packet
double Robust = atof(&buf[12]);
#pragma warning(push)
#pragma warning(disable : 4244)
TNC->RobustTime = Robust * 10;
#pragma warning(pop)
}
if (_memicmp(buf, "BEACONAFTERSESSION", 18) == 0) // Send Beacon after each session
TNC->RPBEACON = TRUE;
else
if (_memicmp(buf, "USEAPPLCALLS", 12) == 0)
TNC->UseAPPLCalls = TRUE;
else
if (_memicmp(buf, "DEFAULT ROBUST", 14) == 0)
TNC->RobustDefault = TRUE;
else
if (_memicmp(buf, "FORCE ROBUST", 12) == 0)
TNC->ForceRobust = TNC->RobustDefault = TRUE;
else
if (_memicmp(buf, "UPDATEMAP", 9) == 0)
TNC->PktUpdateMap = TRUE;
else
if (_memicmp(buf, "WL2KREPORT", 10) == 0)
TNC->WL2K = DecodeWL2KReportLine(buf);
else
{
strcat (TNC->InitScript, buf);
// If %B param,and not R300 or R600 extract speed
if (_memicmp(buf, "%B", 2) == 0)
{
ptr = strchr(buf, '\r');
if (ptr) *ptr = 0;
if (strchr(buf, 'R') == 0)
strcpy(TNC->NormSpeed, &buf[3]);
}
}
}
return (TRUE);
}
static int ExtProc(int fn, int port, unsigned char * buff, int code)
{
int txlen = 0;
UINT * buffptr;
struct TNCINFO * TNC = TNCInfo[port];
int Param;
int Stream = 0;
struct STREAMINFO * STREAM;
int TNCOK;
struct ScanEntry * Scan;
int NewMode;
if (TNC == NULL)
return 0;
if (TNC->hDevice == 0)
{
// Clear anything from UI_Q
while (TNC->PortRecord->UI_Q)
{
buffptr = Q_REM(&TNC->PortRecord->UI_Q);
ReleaseBuffer(buffptr);
}
if (fn > 3 && fn < 6)
goto ok;
// Try to reopen every 30 secs
TNC->ReopenTimer++;
if (TNC->ReopenTimer < 300)
return 0;
TNC->ReopenTimer = 0;
OpenCOMMPort(TNC, TNC->PortRecord->PORTCONTROL.SerialPortName, TNC->PortRecord->PORTCONTROL.BAUDRATE, TRUE);
if (TNC->hDevice == 0)
return 0;
}
ok:
switch (fn)
{
case 7:
// 100 mS Timer.
// See if waiting for connect after changing MYCALL
if (TNC->SlowTimer)
{
TNC->SlowTimer--;
if (TNC->SlowTimer == 0)
{
// Not connected in 45 secs, set back to Port Call
Debugprintf("RP No response after changing call - setting MYCALL back to %s", TNC->NodeCall);
TRKReleasePort(TNC);
}
}
return 0;
case 1: // poll
for (Stream = 0; Stream <= MaxStreams; Stream++)
{
if (TNC->Streams[Stream].ReportDISC)
{
TNC->Streams[Stream].ReportDISC = FALSE;
buff[4] = Stream;
return -1;
}
}
DEDCheckRX(TNC);
DEDPoll(port);
DEDCheckRX(TNC);
for (Stream = 0; Stream <= MaxStreams; Stream++)
{
if (TNC->Streams[Stream].PACTORtoBPQ_Q !=0)
{
int datalen;
buffptr=Q_REM(&TNC->Streams[Stream].PACTORtoBPQ_Q);
datalen=buffptr[1];
buff[4] = Stream;
buff[7] = 0xf0;
memcpy(&buff[8],buffptr+2,datalen); // Data goes to +7, but we have an extra byte
datalen+=8;
PutLengthinBuffer(buff, datalen);
// buff[5]=(datalen & 0xff);
// buff[6]=(datalen >> 8);
ReleaseBuffer(buffptr);
return (1);
}
}
return 0;
case 2: // send
buffptr = GetBuff();
if (buffptr == 0) return (0); // No buffers, so ignore
Stream = buff[4];
if (!TNC->TNCOK)
{
// Send Error Response
buffptr[1] = 36;
memcpy(buffptr+2, "No Connection to PACTOR TNC\r", 36);
C_Q_ADD(&TNC->Streams[Stream].PACTORtoBPQ_Q, buffptr);
return 0;
}
txlen = GetLengthfromBuffer(buff) - 8;
buffptr[1] = txlen;
memcpy(buffptr+2, &buff[8], txlen);
C_Q_ADD(&TNC->Streams[Stream].BPQtoPACTOR_Q, buffptr);
TNC->Streams[Stream].FramesOutstanding++;
return (0);
case 3: // CHECK IF OK TO SEND. Also used to check if TNC is responding
Stream = code;
TNCOK = (TNC->HostMode == 1 && TNC->ReinitState != 10);
STREAM = &TNC->Streams[Stream];
if (Stream == 0)
{
if (STREAM->FramesOutstanding > 4)
return (1 | TNCOK << 8 | STREAM->Disconnecting << 15);
}
else
{
if (STREAM->FramesOutstanding > 3 || TNC->Buffers < 200)
return (1 | TNCOK << 8 | STREAM->Disconnecting << 15); }
return TNCOK << 8 | STREAM->Disconnecting << 15; // OK, but lock attach if disconnecting
case 4: // reinit
ExitHost(TNC);
Sleep(50);
CloseCOMPort(TNC->hDevice);
TNC->hDevice =(HANDLE) -1;
TNC->ReopenTimer = 250;
TNC->HostMode = FALSE;
return (0);
case 5: // Close
// Ensure in Pactor
ExitHost(TNC);
Sleep(25);
CloseCOMPort(TNC->hDevice);
return (0);
case 6: // Scan Interface
Param = code;
switch (Param)
{
case 1: // Request Permission
if (TNC->TNCOK)
{
TNC->WantToChangeFreq = TRUE;
TNC->OKToChangeFreq = TRUE;
return 0;
}
return 0; // Don't lock scan if TNC isn't reponding
case 2: // Check Permission
return TNC->OKToChangeFreq;
case 3: // Release Permission
TNC->WantToChangeFreq = FALSE;
TNC->DontWantToChangeFreq = TRUE;
return 0;
default: // Change Mode. Param is Address of a struct ScanEntry
Scan = (struct ScanEntry *)buff;
// If no change, just return
NewMode = Scan->RPacketMode | (Scan->HFPacketMode << 8);
if (TNC->CurrentMode == NewMode)
return 0;
TNC->CurrentMode = NewMode;
if (Scan->RPacketMode == '1')
{
SwitchToRPacket(TNC, "R300");
return 0;
}
if (Scan->RPacketMode == '2')
{
SwitchToRPacket(TNC, "R600");
return 0;
}
if (Scan->HFPacketMode == '1')
{
SwitchToNormPacket(TNC, "300");
return 0;
}
if (Scan->HFPacketMode == '2')
{
SwitchToNormPacket(TNC, "1200");
return 0;
}
if (Scan->HFPacketMode == '3')
{
SwitchToNormPacket(TNC, "9600");
return 0;
}
}
}
return 0;
}
static int WebProc(struct TNCINFO * TNC, char * Buff, BOOL LOCAL)
{
int Interval = 15;
int Len;
if (LOCAL)
{
if (TNC->WEB_CHANGED)
Interval = 1;
else
Interval = 4;
}
else
{
if (TNC->WEB_CHANGED)
Interval = 4;
else
Interval = 15;
}
if (TNC->WEB_CHANGED)
{
TNC->WEB_CHANGED -= Interval;
if (TNC->WEB_CHANGED < 0)
TNC->WEB_CHANGED = 0;
}
Len = sprintf(Buff, "<html><meta http-equiv=expires content=0><meta http-equiv=refresh content=%d>"
"<head><title>SCSTracker Status</title></head><body><h2>SCSTracker Status</h2>", Interval);
Len += sprintf(&Buff[Len], "<table style=\"text-align: left; width: 480px; font-family: monospace; align=center \" border=1 cellpadding=2 cellspacing=2>");
Len += sprintf(&Buff[Len], "<tr><td width=90px>Comms State</td><td>%s</td></tr>", TNC->WEB_COMMSSTATE);
Len += sprintf(&Buff[Len], "<tr><td>TNC State</td><td>%s</td></tr>", TNC->WEB_TNCSTATE);
Len += sprintf(&Buff[Len], "<tr><td>Mode</td><td>%s</td></tr>", TNC->WEB_MODE);
Len += sprintf(&Buff[Len], "<tr><td>Traffic</td><td>%s</td></tr>", TNC->WEB_TRAFFIC);
Len += sprintf(&Buff[Len], "</table>");
Len = DoScanLine(TNC, Buff, Len);
return Len;
}
void *
TrackerExtInit(EXTPORTDATA * PortEntry)
{
char msg[500];
struct TNCINFO * TNC;
int port;
char * ptr;
int Stream = 0;
char * TempScript;
//
// Will be called once for each DED Host TNC Port
// The COM port number is in IOBASE
//
sprintf(msg,"SCSTRK %s", PortEntry->PORTCONTROL.SerialPortName);
WritetoConsoleLocal(msg);
port=PortEntry->PORTCONTROL.PORTNUMBER;
ReadConfigFile(port, ProcessLine);
TNC = TNCInfo[port];
if (TNC == NULL)
{
// Not defined in Config file
sprintf(msg," ** Error - no info in BPQ32.cfg for this port\n");
WritetoConsoleLocal(msg);
return ExtProc;
}
TNC->Port = port;
TNC->Hardware = H_TRK;
// Set up DED addresses for streams
for (Stream = 0; Stream <= MaxStreams; Stream++)
{
TNC->Streams[Stream].DEDStream = Stream + 1; // DED Stream = BPQ Stream + 1
}
if (TNC->PacketChannels > MaxStreams)
TNC->PacketChannels = MaxStreams;
PortEntry->MAXHOSTMODESESSIONS = 1; //TNC->PacketChannels + 1;
PortEntry->PERMITGATEWAY = TRUE; // Can change ax.25 call on each stream
PortEntry->SCANCAPABILITIES = NONE; // Scan Control 3 stage/conlock
TNC->PortRecord = PortEntry;
if (PortEntry->PORTCONTROL.PORTCALL[0] == 0)
memcpy(TNC->NodeCall, MYNODECALL, 10);
else
ConvFromAX25(&PortEntry->PORTCONTROL.PORTCALL[0], TNC->NodeCall);
PortEntry->PORTCONTROL.PROTOCOL = 10;
PortEntry->PORTCONTROL.UICAPABLE = 1;
PortEntry->PORTCONTROL.PORTQUALITY = 0;
if (PortEntry->PORTCONTROL.PORTPACLEN == 0)
PortEntry->PORTCONTROL.PORTPACLEN = 100;
TNC->Interlock = PortEntry->PORTCONTROL.PORTINTERLOCK;
TNC->SuspendPortProc = TRKSuspendPort;
TNC->ReleasePortProc = TRKReleasePort;
ptr=strchr(TNC->NodeCall, ' ');
if (ptr) *(ptr) = 0; // Null Terminate
// get NODECALL for RP tests
memcpy(NodeCall, MYNODECALL, 10);
ptr=strchr(NodeCall, ' ');
if (ptr) *(ptr) = 0; // Null Terminate
TempScript = malloc(1000);
strcpy(TempScript, "M UISC\r");
strcat(TempScript, "F 200\r"); // Sets SABM retry time to about 5 secs
strcat(TempScript, "%F 1500\r"); // Tones may be changed but I want this as standard
strcat(TempScript, TNC->InitScript);
free(TNC->InitScript);
TNC->InitScript = TempScript;
// Others go on end so they can't be overriden
strcat(TNC->InitScript, "Z 0\r"); // No Flow Control
strcat(TNC->InitScript, "Y 1\r"); // One Channel
strcat(TNC->InitScript, "E 1\r"); // Echo - Restart process needs echo
sprintf(msg, "I %s\r", TNC->NodeCall);
strcat(TNC->InitScript, msg);
strcpy(TNC->Streams[0].MyCall, TNC->NodeCall); // For 1st Connected Test
TNC->WebWindowProc = WebProc;
TNC->WebWinX = 500;
TNC->WebWinY = 200;
TNC->WEB_COMMSSTATE = zalloc(100);
TNC->WEB_TNCSTATE = zalloc(100);
TNC->WEB_MODE = zalloc(20);
TNC->WEB_TRAFFIC = zalloc(100);
#ifndef LINBPQ
CreatePactorWindow(TNC, ClassName, WindowTitle, RigControlRow, PacWndProc, 500, 200);
CreateWindowEx(0, "STATIC", "Comms State", WS_CHILD | WS_VISIBLE, 10,10,120,24, TNC->hDlg, NULL, hInstance, NULL);
TNC->xIDC_COMMSSTATE = CreateWindowEx(0, "STATIC", "", WS_CHILD | WS_VISIBLE, 116,10,386,26, TNC->hDlg, NULL, hInstance, NULL);
CreateWindowEx(0, "STATIC", "TNC State", WS_CHILD | WS_VISIBLE, 10,36,106,24, TNC->hDlg, NULL, hInstance, NULL);
TNC->xIDC_TNCSTATE = CreateWindowEx(0, "STATIC", "", WS_CHILD | WS_VISIBLE, 116,36,520,24, TNC->hDlg, NULL, hInstance, NULL);
CreateWindowEx(0, "STATIC", "Mode", WS_CHILD | WS_VISIBLE, 10,62,80,24, TNC->hDlg, NULL, hInstance, NULL);
TNC->xIDC_MODE = CreateWindowEx(0, "STATIC", "", WS_CHILD | WS_VISIBLE, 116,62,200,24, TNC->hDlg, NULL, hInstance, NULL);
TNC->xIDC_BUFFERS = CreateWindowEx(0, "STATIC", "Buffers", WS_CHILD | WS_VISIBLE, 10,88,80,24, TNC->hDlg, NULL, hInstance, NULL);
CreateWindowEx(0, "STATIC", "0", WS_CHILD | WS_VISIBLE, 116,88,144,24, TNC->hDlg, NULL, hInstance, NULL);
CreateWindowEx(0, "STATIC", "Traffic", WS_CHILD | WS_VISIBLE,10,114,80,24, TNC->hDlg, NULL, hInstance, NULL);
TNC->xIDC_TRAFFIC = CreateWindowEx(0, "STATIC", "RX 0 TX 0", WS_CHILD | WS_VISIBLE,116,114,374,24 , TNC->hDlg, NULL, hInstance, NULL);
TNC->ClientHeight = 200;
TNC->ClientWidth = 500;
MoveWindows(TNC);
#endif
if (TNC->RobustDefault)
{
TNC->Robust = TRUE;
strcat(TNC->InitScript, "%B R600\r");
SetWindowText(TNC->xIDC_MODE, "Robust Packet");
strcpy(TNC->WEB_MODE, "Robust Packet");
TNC->WEB_CHANGED = TRUE;
}
else
{
char Cmd[40];
sprintf(Cmd, "%%B %s\r", TNC->NormSpeed);
strcat(TNC->InitScript, Cmd);
SetWindowText(TNC->xIDC_MODE, "HF Packet");
strcpy(TNC->WEB_MODE, "HF Packet");
TNC->WEB_CHANGED = TRUE;
}
strcpy(TNC->WEB_TNCSTATE, "Idle");
SetWindowText(TNC->xIDC_TNCSTATE, TNC->WEB_TNCSTATE);
OpenCOMMPort(TNC,PortEntry->PORTCONTROL.SerialPortName, PortEntry->PORTCONTROL.BAUDRATE, FALSE);
TNC->InitPtr = TNC->InitScript;
if (RigConfigMsg[port] == NULL)
TNC->SwitchToPactor = TNC->RobustTime; // Don't alternate Modes if using Rig Control
WritetoConsoleLocal("\n");
return ExtProc;
}
static void DEDCheckRX(struct TNCINFO * TNC)
{
int Length, Len;
UCHAR * ptr;
UCHAR character;
UCHAR * CURSOR;
Len = ReadCOMBlock(TNC->hDevice, &TNC->RXBuffer[TNC->RXLen], 500 - TNC->RXLen);
if (Len == 0)
return; // Nothing doing
TNC->RXLen += Len;
Length = TNC->RXLen;
ptr = TNC->RXBuffer;
CURSOR = &TNC->DEDBuffer[TNC->InputLen];
if ((TNC->HostMode == 0 || TNC->ReinitState == 10) && Length > 80)
{
// Probably Signon Message
ptr[Length] = 0;
Debugprintf("TRK %s", ptr);
TNC->RXLen = 0;
return;
}
if (TNC->HostMode == 0)
{
// If we are just restarting, and TNC is in host mode, we may get "Invalid Channel" Back
if (memcmp(ptr, "\x18\x02INVALID", 9) == 0)
{
TNC->HostMode = TRUE;
TNC->HOSTSTATE = 0;
TNC->Timeout = 0;
TNC->RXLen = 0;
return;
}
// Command is echoed as * command *
if (strstr(ptr, "*") || TNC->ReinitState == 5) // 5 is waiting for reponse to JHOST1
{
ProcessTermModeResponse(TNC);
TNC->RXLen = 0;
TNC->HOSTSTATE = 0;
return;
}
}
if (TNC->ReinitState == 10)
{
if (Length == 1 && *(ptr) == '.') // 01 echoed as .
{
// TNC is in Term Mode
TNC->ReinitState = 0;
TNC->HostMode = 0;
return;
}
}
while (Length--)
{
character = *(ptr++);
if (TNC->HostMode)
{
// n 0 Success (nothing follows)
// n 1 Success (message follows, null terminated)
// n 2 Failure (message follows, null terminated)
// n 3 Link Status (null terminated)
// n 4 Monitor Header (null terminated)
// n 5 Monitor Header (null terminated)
// n 6 Monitor Information (preceeded by length-1)
// n 7 Connect Information (preceeded by length-1)
switch(TNC->HOSTSTATE)
{
case 0: // SETCHANNEL
TNC->MSGCHANNEL = character;
TNC->HOSTSTATE++;
break;
case 1: // SETMSGTYPE
TNC->MSGTYPE = character;
if (character == 0)
{
// Success, no more info
ProcessDEDFrame(TNC);
TNC->HOSTSTATE = 0;
break;
}
if (character > 0 && character < 6)
{
// Null Terminated Response)
TNC->HOSTSTATE = 5;
CURSOR = &TNC->DEDBuffer[0];
break;
}
if (character > 5 && character < 8)
{
TNC->HOSTSTATE = 2; // Get Length
break;
}
// Invalid
Debugprintf("TRK - Invalid MsgType %d %x %x %x", character, *(ptr), *(ptr+1), *(ptr+2));
break;
case 2: // Get Length
TNC->MSGCOUNT = character;
TNC->MSGCOUNT++; // Param is len - 1
TNC->MSGLENGTH = TNC->MSGCOUNT;
CURSOR = &TNC->DEDBuffer[0];
TNC->HOSTSTATE = 3; // Get Data
break;
case 5: // Collecting Null Terminated Response
*(CURSOR++) = character;
if (character)
continue; // MORE TO COME
ProcessDEDFrame(TNC);
TNC->HOSTSTATE = 0;
TNC->InputLen = 0;
break;
default:
// RECEIVING Counted Response
*(CURSOR++) = character;
TNC->MSGCOUNT--;
if (TNC->MSGCOUNT)
continue; // MORE TO COME
TNC->InputLen = CURSOR - TNC->DEDBuffer;
ProcessDEDFrame(TNC);
TNC->HOSTSTATE = 0;
TNC->InputLen = 0;
}
}
}
// End of Input - Save buffer position
TNC->InputLen = CURSOR - TNC->DEDBuffer;
TNC->RXLen = 0;
}
static BOOL WriteCommBlock(struct TNCINFO * TNC)
{
WriteCOMBlock(TNC->hDevice, TNC->TXBuffer, TNC->TXLen);
TNC->Timeout = 20; // 2 secs
return TRUE;
}
VOID DEDPoll(int Port)
{
struct TNCINFO * TNC = TNCInfo[Port];
UCHAR * Poll = TNC->TXBuffer;
char Status[80];
int Stream = 0;
int nn;
struct STREAMINFO * STREAM;
for (Stream = 0; Stream <= MaxStreams; Stream++)
{
if (TNC->PortRecord->ATTACHEDSESSIONS[Stream] && TNC->Streams[Stream].Attached == 0)
{
// New Attach
int calllen=0;
TNC->CurrentMode = 0; // Mode may be changed manually
TNC->Streams[Stream].Attached = TRUE;
TNC->PortRecord->ATTACHEDSESSIONS[Stream]->L4USER[6] |= 0x60; // Ensure P or T aren't used on ax.25
calllen = ConvFromAX25(TNC->PortRecord->ATTACHEDSESSIONS[Stream]->L4USER, TNC->Streams[Stream].MyCall);
TNC->Streams[Stream].MyCall[calllen] = 0;
// Set call to null to stop inbound connects (We only support one stream)
TNC->Streams[Stream].CmdSet = TNC->Streams[Stream].CmdSave = zalloc(100);
sprintf(TNC->Streams[Stream].CmdSet, "\1\1\1IDSPTNC");
if (Stream == 0)
{
sprintf(TNC->WEB_TNCSTATE, "In Use by %s", TNC->Streams[0].MyCall);
SetWindowText(TNC->xIDC_TNCSTATE, TNC->WEB_TNCSTATE);
TNC->WEB_CHANGED = TRUE;
// Stop Scanner
TNC->SwitchToPactor = 0; // Cancel any RP to Pactor switch
sprintf(Status, "%d SCANSTOP", TNC->Port);
Rig_Command(-1, Status);
SuspendOtherPorts(TNC); // Prevent connects on other ports in same scan gruop
}
}
}
if (TNC->Timeout)
{
TNC->Timeout--;
if (TNC->Timeout) // Still waiting
return;
// Can't use retries, as we have no way of detecting lost chars. Have to re-init on timeout
if (TNC->HostMode == 0 || TNC->ReinitState == 10) // 10 is Recovery Mode
{
DoTermModeTimeout(TNC);
return;
}
// Timed out in host mode - Clear any connection and reinit the TNC
Debugprintf("DEDHOST - Link to TNC Lost");
TNC->TNCOK = FALSE;
sprintf(TNC->WEB_COMMSSTATE, "%s Open but TNC not responding", TNC->PortRecord->PORTCONTROL.SerialPortName);
SetWindowText(TNC->xIDC_COMMSSTATE, TNC->WEB_COMMSSTATE);
TNC->WEB_CHANGED = TRUE;
TNC->HostMode = 0;
TNC->ReinitState = 0;
TNC->InitPtr = TNC->InitScript;
TNC->HOSTSTATE = 0;
for (Stream = 0; Stream <= MaxStreams; Stream++)
{
if (TNC->PortRecord->ATTACHEDSESSIONS[Stream]) // Connected
{
TNC->Streams[Stream].Connected = FALSE; // Back to Command Mode
TNC->Streams[Stream].ReportDISC = TRUE; // Tell Node
}
}
// Clear anything from UI_Q
while (TNC->PortRecord->UI_Q)
{
UINT * buffptr = Q_REM(&TNC->PortRecord->UI_Q);
ReleaseBuffer(buffptr);
}
}
if (TNC->SwitchToPactor)
{
TNC->SwitchToPactor--;
if (TNC->SwitchToPactor == 0)
{
TNC->SwitchToPactor = TNC->RobustTime;
if (TNC->Robust)
SwitchToNormPacket(TNC, "");
else
SwitchToRPacket(TNC, "R600");
}
}
for (Stream = 0; Stream <= MaxStreams; Stream++)
{
STREAM = &TNC->Streams[Stream];
if (STREAM->Attached)
CheckForDetach(TNC, Stream, STREAM, TidyClose, ForcedClose, CloseComplete);
if (STREAM->NeedDisc)
{
STREAM->NeedDisc--;
if (STREAM->NeedDisc == 0)
STREAM->ReportDISC = TRUE;
}
if (TNC->Timeout)
return; // We've sent something
}
// if we have just restarted or TNC appears to be in terminal mode, run Initialisation Sequence