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

/*====================================================================*
 *
 *   plcset.c -
 *
 *--------------------------------------------------------------------*/

/*====================================================================*
 *   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 "../ether/channel.h"

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

#ifndef MAKEFILE
#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"
#include "../plc/SetProperty.c"
#endif

#ifndef MAKEFILE
#include "../tools/synonym.c"
#include "../tools/getoptv.c"
#include "../tools/putoptv.c"
#include "../tools/version.c"
#include "../tools/uintspec.c"
#include "../tools/basespec.c"
#include "../tools/dataspec.c"
#include "../tools/bytespec.c"
#include "../tools/hexdump.c"
#include "../tools/hexencode.c"
#include "../tools/hexdecode.c"
#include "../tools/todigit.c"
#include "../tools/binout.c"
#include "../tools/error.c"
#include "../tools/memencode.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

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

#define PLCSET_PROP_VERSION 0
#define PLCSET_PROP_OPTION 1

/*====================================================================*
 *
 *   int main (int argc, char const * argv[]);
 *
 *   parse command line, populate plc structure and perform selected
 *   operations; show help summary if asked; see getoptv and putoptv
 *   to understand command line parsing and help summary display; see
 *   plc.h for the definition of struct plc;
 *
 *   the command line accepts multiple MAC addresses and the program
 *   performs the specified operations on each address, in turn; the
 *   address order is significant but the option order is not; the
 *   default address is a local broadcast that causes all devices on
 *   the local H1 interface to respond but not those at the remote
 *   end of the powerline;
 *
 *   the default address is 00:B0:52:00:00:01; omitting the address
 *   will automatically address the local device; some options will
 *   cancel themselves if this makes no sense;
 *
 *   the default interface is eth1 because most people use eth0 as
 *   their principle network connection; you can specify another
 *   interface with -i or define environment string PLC to make
 *   that the default interface and save typing;
 *
 *--------------------------------------------------------------------*/

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

{
	extern struct channel channel;
	static char const * optv [] =
	{
		"ei:n:o:qs:t:v",
		"[type data] [type data] [...] [device] [device] [...]\n\n\ttype :== 'byte'|'word'|'long'|'huge'|'text'|'data'|'zero'|'fill'|'skip'|'hfid'|'mac'|'key'",
		"Qualcomm Atheros PLC Set Property",
		"e\tredirect stderr 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

		"n n\tproperty identifier or version is (n) [" LITERAL (PLCSET_PROP_VERSION) "]",
		"o n\tproperty option is (n) [" LITERAL (PLCSET_PROP_OPTION) "]",
		"q\tquiet mode",
		"s x\tsession identifier is (x) [" LITERAL (PLCSESSION) "]",
		"t n\tread timeout is (n) milliseconds [" LITERAL (CHANNEL_TIMEOUT) "]",
		"v\tverbose mode",
		(char const *) (0)
	};

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

	struct plcproperty plcproperty;
	signed c;
	if (getenv (PLCDEVICE))
	{

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

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

#else

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

#endif

	}
	optind = 1;
	memset (& plcproperty, 0, sizeof (plcproperty));
	plcproperty.PROP_OPTION = PLCSET_PROP_OPTION;
	plcproperty.PROP_VERSION = PLCSET_PROP_VERSION;
	while (~ (c = getoptv (argc, argv, optv)))
	{
		switch (c)
		{
		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 'n':
			if (! plcproperty.PROP_NUMBER)
			{
				plcproperty.PROP_NUMBER = (uint32_t) (uintspec (optarg, 0, UINT_MAX));
			}
			else 
			{
				plcproperty.PROP_VERSION = (uint32_t) (uintspec (optarg, 0, UINT_MAX));
			}
			break;
		case 'o':
			plcproperty.PROP_OPTION = (uint8_t) (basespec (optarg, 16, sizeof (plcproperty.PROP_OPTION)));
			break;
		case 'q':
			_setbits (channel.flags, CHANNEL_SILENCE);
			_setbits (plc.flags, PLC_SILENCE);
			break;
		case 's':
			plc.cookie = (uint32_t) (basespec (optarg, 16, sizeof (plc.cookie)));
			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;
	while ((argc > 1) && (* argv))
	{
		plcproperty.DATA_LENGTH += (uint32_t) (memencode (plcproperty.DATA_BUFFER +  plcproperty.DATA_LENGTH, sizeof (plcproperty.DATA_BUFFER) - plcproperty.DATA_LENGTH, argv [0], argv [1]));
		argc -= 2;
		argv += 2;
	}
	openchannel (& channel);
	if (! (plc.message = malloc (sizeof (* plc.message))))
	{
		error (1, errno, PLC_NOMEMORY);
	}
	if (! argc)
	{
		SetProperty (& plc, & plcproperty);
	}
	while ((argc) && (* argv))
	{
		if (! hexencode (channel.peer, sizeof (channel.peer), synonym (* argv, devices, SIZEOF (devices))))
		{
			error (1, errno, PLC_BAD_MAC, * argv);
		}
		SetProperty (& plc, & plcproperty);
		argc--;
		argv++;
	}
	free (plc.message);
	closechannel (& channel);
	exit (0);
}