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/*====================================================================*
*
* 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.
*
* NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE
* 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
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*--------------------------------------------------------------------*/
/*====================================================================*
*
* signed GetProperty (struct plc * plc, struct property * property);
*
* plc.h
*
* interrogte PLC devices for a property using the VS_GET_PROPERTY
* message and display the property value on stdout as a series of
* binary, decimal or hexadecimal bytes or an ASCII string;
*
* the current implementation retrieves properties by number, not
* by name;
*
*--------------------------------------------------------------------*/
#ifndef GETPROPERTY_SOURCE
#define GETPROPERTY_SOURCE
#include <ctype.h>
#include <stdint.h>
#include <memory.h>
#include "../tools/error.h"
#include "../tools/memory.h"
#include "../tools/number.h"
#include "../plc/plc.h"
signed GetProperty (struct plc * plc, struct plcproperty * plcproperty)
{
struct channel * channel = (struct channel *)(plc->channel);
struct message * message = (struct message *)(plc->message);
#ifndef __GNUC__
#pragma pack (push,1)
#endif
struct __packed vs_get_property_request
{
struct ethernet_hdr ethernet;
struct qualcomm_hdr qualcomm;
uint32_t COOKIE;
uint8_t DATA_FORMAT;
uint8_t PROP_FORMAT;
uint8_t RESERVED [2];
uint32_t PROP_VERSION;
uint32_t PROP_LENGTH;
uint32_t PROP_NUMBER;
}
* request = (struct vs_get_property_request *) (message);
struct __packed vs_get_property_confirm
{
struct ethernet_hdr ethernet;
struct qualcomm_hdr qualcomm;
uint32_t MSTATUS;
uint32_t COOKIE;
uint8_t DATA_FORMAT;
uint8_t RESERVED [3];
uint32_t DATA_LENGTH;
uint32_t DATA_BUFFER [1];
}
* confirm = (struct vs_get_property_confirm *) (message);
#ifndef __GNUC__
#pragma pack (pop)
#endif
Request (plc, "Get Property");
memset (message, 0, sizeof (* message));
EthernetHeader (&request->ethernet, channel->peer, channel->host, channel->type);
QualcommHeader (&request->qualcomm, 0, (VS_GET_PROPERTY | MMTYPE_REQ));
request->COOKIE = HTOLE32 (plc->cookie);
request->DATA_FORMAT = plcproperty->DATA_FORMAT;
request->PROP_FORMAT = plcproperty->PROP_FORMAT;
request->PROP_VERSION = HTOLE32 (plcproperty->PROP_VERSION);
request->PROP_LENGTH = HTOLE32 (plcproperty->PROP_LENGTH);
request->PROP_NUMBER = HTOLE32 (plcproperty->PROP_NUMBER);
plc->packetsize = (ETHER_MIN_LEN - ETHER_CRC_LEN);
if (SendMME (plc) <= 0)
{
error (PLC_EXIT (plc), errno, CHANNEL_CANTSEND);
return (-1);
}
while (ReadMME (plc, 0, (VS_GET_PROPERTY | MMTYPE_CNF)) > 0)
{
if (confirm->COOKIE != HTOLE32 (plc->cookie)) {
continue;
}
if (confirm->MSTATUS)
{
Failure (plc, PLC_WONTDOIT);
continue;
}
confirm->DATA_LENGTH = LE32TOH (confirm->DATA_LENGTH);
if (plcproperty->DATA_FORMAT == PLC_FORMAT_BIN)
{
binout (confirm->DATA_BUFFER, confirm->DATA_LENGTH, ' ', '\n', stdout);
continue;
}
if (plcproperty->DATA_FORMAT == PLC_FORMAT_HEX)
{
hexout (confirm->DATA_BUFFER, confirm->DATA_LENGTH, ' ', '\n', stdout);
continue;
}
if (plcproperty->DATA_FORMAT == PLC_FORMAT_DEC)
{
decout (confirm->DATA_BUFFER, confirm->DATA_LENGTH, ' ', '\n', stdout);
continue;
}
if (plcproperty->DATA_FORMAT == PLC_FORMAT_ASC)
{
chrout (confirm->DATA_BUFFER, confirm->DATA_LENGTH, '.', '\n', stdout);
continue;
}
}
return (0);
}
#endif
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