/*====================================================================*
*
* 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 ReadRules (struct plc * plc);
*
* plc.h
*
* Read and Display the classifier rules read from a PLC device.
*
* Contributor(s):
* Nathan Houghton <nhoughto@qca.qualcomm.com>
* Charles Maier <cmaier@qca.qualcomm.com>
*
*--------------------------------------------------------------------*/
#ifndef READRULES_SOURCE
#define READRULES_SOURCE
#include <limits.h>
#include <stdio.h>
#include "../plc/plc.h"
#include "../plc/rules.h"
#include "../tools/error.h"
signed ReadRules (struct plc * plc)
{
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;
uint8_t MCONTROL;
uint8_t RSVD;
uint8_t OFFSET;
uint8_t COUNT;
}
* request = (struct vs_classification_request *) (message);
struct __packed vs_classification_confirm
{
struct ethernet_hdr ethernet;
struct qualcomm_hdr qualcomm;
uint8_t MSTATUS;
uint8_t TOTAL_CLASSIFIERS;
uint8_t OFFSET;
uint8_t COUNT;
struct __packed MMEReadRule
{
uint8_t MACTION;
uint8_t MOPERAND;
uint8_t NUM_CLASSIFIERS;
struct MMEClassifier CLASSIFIER [3];
struct cspec cspec;
}
RULESET [60];
}
* confirm = (struct vs_classification_confirm *) (message);
#ifndef __GNUC__
#pragma pack (pop)
#endif
unsigned index = 0;
unsigned total = UINT_MAX;
Request (plc, "Read Classifier Rules");
while (index < total)
{
struct MMEReadRule * rule;
memset (message, 0, sizeof (* message));
EthernetHeader (& request->ethernet, channel->peer, channel->host, channel->type);
QualcommHeader (& request->qualcomm, 0, (VS_CLASSIFICATION | MMTYPE_REQ));
plc->packetsize = ETHER_MIN_LEN - ETHER_CRC_LEN;
request->MCONTROL = CONTROL_READ;
request->OFFSET = index;
request->COUNT = SIZEOF (confirm->RULESET);
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);
}
total = confirm->TOTAL_CLASSIFIERS;
index += confirm->COUNT;
rule = confirm->RULESET;
while (confirm->COUNT--)
{
int count;
int rule_len;
const char * p1;
const char * p2;
struct cspec * cspec;
if (rule->NUM_CLASSIFIERS > RULE_MAX_CLASSIFIERS)
{
error (1, 0, "too many classifiers in rule (%d, expecting <= %d)", rule->NUM_CLASSIFIERS, RULE_MAX_CLASSIFIERS);
}
rule_len = sizeof (* rule) - (RULE_MAX_CLASSIFIERS - rule->NUM_CLASSIFIERS) * sizeof (struct MMEClassifier) - sizeof (struct cspec);
if (rule->MACTION == ACTION_AUTOCONNECT || rule->MACTION == ACTION_TAGTX || rule->MACTION == ACTION_TAGRX)
{
cspec = (struct cspec *) ((uint8_t *) rule + rule_len);
rule_len += sizeof (struct cspec);
}
if (rule->MACTION == ACTION_TAGTX)
{
printf ("-T 0x%08X -V %d ", ntohl (cspec->VLAN_TAG), cspec->CSPEC_VERSION);
}
p1 = reword (rule->MACTION, actions, CLASSIFIER_ACTIONS);
if (p1 == NULL)
{
error (1, 0, "invalid classifier action");
}
p2 = reword (rule->MOPERAND, operands, CLASSIFIER_OPERANDS);
if (p2 == NULL)
{
error (1, 0, "invalid classifier operand");
}
printf ("%s", p1);
printf (" %s ", p2);
/* need to dump out the actual conditions here */
for (count = 0; count < rule->NUM_CLASSIFIERS; ++ count)
{
struct MMEClassifier * classifier = & rule->CLASSIFIER [count];
PrintRule (classifier->CR_PID, classifier->CR_OPERAND, classifier->CR_VALUE);
putchar (' ');
}
printf ("add temp\n");
rule = (struct MMEReadRule *) ((uint8_t *) (rule) + rule_len);
}
}
return (0);
}
#endif