/*====================================================================*
*
*   Copyright (c) 2013 Qualcomm Atheros, Inc.
*
*   All rights reserved.
*
*====================================================================*/

/*====================================================================*
 *
 *   plcsnif.c -
 *
 *   Contributor(s):
 *      Charles Maier <cmaier@qca.qualcomm.com>
 *
 *--------------------------------------------------------------------*/

/*====================================================================*
 *   system header files;
 *--------------------------------------------------------------------*/

#include <unistd.h>
#include <stdlib.h>
#include <stdint.h>
#include <limits.h>

/*====================================================================*
 *   custom header files;
 *--------------------------------------------------------------------*/

#include "../tools/getoptv.h"
#include "../tools/putoptv.h"
#include "../tools/memory.h"
#include "../tools/number.h"
#include "../tools/symbol.h"
#include "../tools/types.h"
#include "../tools/flags.h"
#include "../tools/files.h"
#include "../tools/error.h"
#include "../plc/plc.h"
#include "../nda/nda.h"

/*====================================================================*
 *   custom source files;
 *--------------------------------------------------------------------*/

#ifndef MAKEFILE
#include "../plc/chipset.c"
#include "../plc/Devices.c"
#include "../plc/Confirm.c"
#include "../plc/Display.c"
#include "../plc/Failure.c"
#include "../plc/Request.c"
#include "../plc/ReadMME.c"
#include "../plc/SendMME.c"
#endif

#ifndef MAKEFILE
#include "../tools/getoptv.c"
#include "../tools/putoptv.c"
#include "../tools/version.c"
#include "../tools/uintspec.c"
#include "../tools/hexdump.c"
#include "../tools/hexdecode.c"
#include "../tools/hexencode.c"
#include "../tools/hexstring.c"
#include "../tools/hexout.c"
#include "../tools/todigit.c"
#include "../tools/synonym.c"
#include "../tools/error.c"
#include "../tools/typename.c"
#endif

#ifndef MAKEFILE
#include "../ether/openchannel.c"
#include "../ether/closechannel.c"
#include "../ether/readpacket.c"
#include "../ether/sendpacket.c"
#include "../ether/channel.c"
#endif

#ifndef MAKEFILE
#include "../mme/MMECode.c"
#include "../mme/EthernetHeader.c"
#include "../mme/QualcommHeader.c"
#include "../mme/UnwantedMessage.c"
#endif

#ifndef MAKEFILE
#include "../nda/Sniffer.c"
#include "../nda/Monitor.c"
#endif

/*====================================================================*
 *   program constants;
 *--------------------------------------------------------------------*/

#define DEFAULT_MODE 0

/*====================================================================*
 *
 *   int main (int argc, char const * argv[]);
 *
 *--------------------------------------------------------------------*/

int main (int argc, char const * argv [])

{
	extern struct channel channel;
	extern const struct _term_ devices [];
	static char const * optv [] =
	{
		"dbei:m:qt:v",
		"device [device] [...]",
		"Qualcomm Atheros Powerline Traffic Sniffer",
		"d\tdump sniffer data in hex format on stdout",
		"e\tredirect stderr messages to stdout",

#if defined (WINPCAP) || defined (LIBPCAP)

		"i n\thost interface is (n) [" LITERAL (CHANNEL_ETHNUMBER) "]",

#else

		"i s\thost interface is (s) [" LITERAL (CHANNEL_ETHDEVICE) "]",

#endif

		"m n\tmode is (n) [" LITERAL (DEFAULT_MODE) "]",
		"q\tquiet mode",
		"t n\tread timeout is (n) milliseconds [" LITERAL (CHANNEL_TIMEOUT) "]",
		"v\tverbose mode",
		(char const *) (0)
	};

#include "../plc/plc.c"

	signed colon = '\0';
	signed space = ' ';
	signed c;
	plc.action = DEFAULT_MODE;
	optind = 1;
	if (getenv (PLCDEVICE))
	{

#if defined (WINPCAP) || defined (LIBPCAP)

		channel.ifindex = atoi (getenv (PLCDEVICE));

#else

		channel.ifname = strdup (getenv (PLCDEVICE));

#endif

	}
	while (~ (c = getoptv (argc, argv, optv)))
	{
		switch (c)
		{
		case 'd':
			_setbits (plc.flags, PLC_MONITOR);
			break;
		case 'e':
			dup2 (STDOUT_FILENO, STDERR_FILENO);
			break;
		case 'i':

#if defined (WINPCAP) || defined (LIBPCAP)

			channel.ifindex = atoi (optarg);

#else

			channel.ifname = optarg;

#endif

			break;
		case 'm':
			plc.action = (uint8_t) (uintspec (optarg, 0, UCHAR_MAX));
			break;
		case 'q':
			_setbits (plc.flags, PLC_SILENCE);
			break;
		case 't':
			channel.timeout = (signed) (uintspec (optarg, 0, UINT_MAX));
			break;
		case 'v':
			_setbits (channel.flags, CHANNEL_VERBOSE);
			_setbits (plc.flags, PLC_VERBOSE);
			break;
		default: 
			break;
		}
	}
	argc -= optind;
	argv += optind;
	openchannel (& channel);
	if (! (plc.message = malloc (sizeof (* plc.message))))
	{
		error (1, errno, PLC_NOMEMORY);
	}
	if (! argc)
	{
		if (_anyset (plc.flags, PLC_MONITOR))
		{
			Monitor (& plc, colon, space);
		}
		else 
		{
			Sniffer (& plc);
		}
	}
	while ((argc) && (* argv))
	{
		if (! hexencode (channel.peer, sizeof (channel.peer), synonym (* argv, devices, SIZEOF (devices))))
		{
			error (1, errno, PLC_BAD_MAC, * argv);
		}
		Sniffer (& plc);
		argv++;
		argc--;
	}
	free (plc.message);
	closechannel (& channel);
	exit (0);
}