csu3_am335x/EVSE/GPL/open-plc-utils-0.3/plc/MakeRule.c

/*====================================================================*
 *
 *   Copyright (c) 2013 Qualcomm Atheros, Inc.
 *
 *   All rights reserved.
 *
 *   Redistribution and use in source and binary forms, with or
 *   without modification, are permitted (subject to the limitations
 *   in the disclaimer below) provided that the following conditions
 *   are met:
 *
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *
 *   * Redistributions in binary form must reproduce the above
 *     copyright notice, this list of conditions and the following
 *     disclaimer in the documentation and/or other materials
 *     provided with the distribution.
 *
 *   * Neither the name of Qualcomm Atheros nor the names of
 *     its contributors may be used to endorse or promote products
 *     derived from this software without specific prior written
 *     permission.
 *
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 *   GRANTED BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE
 *   COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
 *   IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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 *   PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
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 *   NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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 *--------------------------------------------------------------------*/

/*====================================================================*
 *
 *   signed MakeRule (struct plc * plc, struct rule * rule);
 *
 *   plc.h
 *
 *   This plugin for program plcrule adds or removes a temporary
 *   or permanent network classification rule to a device using a
 *   VS_CLASSIFICATION message;
 *
 *   Contributor(s):
 *      Charles Maier
 *
 *--------------------------------------------------------------------*/

#ifndef MAKERULE_SOURCE
#define MAKERULE_SOURCE

#include "../tools/error.h"

#include "../plc/rules.h"
#include "../plc/plc.h"

signed MakeRule (struct plc * plc, struct MMERule * rule)

{
	struct channel * channel = (struct channel *) (plc->channel);
	struct message * message = (struct message *) (plc->message);

#ifndef __GNUC__
#pragma pack (push,1)
#endif

	struct __packed vs_classification_request
	{
		struct ethernet_hdr ethernet;
		struct qualcomm_hdr qualcomm;
		struct MMERule rule;
	}
	* request = (struct vs_classification_request *) (message);
	struct __packed vs_classification_confirm
	{
		struct ethernet_hdr ethernet;
		struct qualcomm_hdr qualcomm;
		uint8_t MSTATUS;
	}
	* confirm = (struct vs_classification_confirm *) (message);

#ifndef __GNUC__
#pragma pack (pop)
#endif

	Request (plc, "Set MakeRules Rules");
	memset (message, 0, sizeof (* message));
	EthernetHeader (& request->ethernet, channel->peer, channel->host, channel->type);
	QualcommHeader (& request->qualcomm, 0, (VS_CLASSIFICATION | MMTYPE_REQ));
	plc->packetsize = sizeof (struct vs_classification_request);
	memcpy (& request->rule, rule, sizeof (request->rule));
	if (SendMME (plc) <= 0)
	{
		error (PLC_EXIT (plc), errno, CHANNEL_CANTSEND);
		return (-1);
	}
	if (ReadMME (plc, 0, (VS_CLASSIFICATION | MMTYPE_CNF)) <= 0)
	{
		error (PLC_EXIT (plc), errno, CHANNEL_CANTREAD);
		return (-1);
	}
	if (confirm->MSTATUS)
	{
		Failure (plc, PLC_WONTDOIT);
		return (-1);
	}
	Confirm (plc, "Setting ...");
	return (0);
}

#endif