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/* [ICS VERSION STRING: unknown] */

//===========================================================================//
//									     //
// FILE NAME								     //
//    sa_DeviceGroupName.c						     //
//									     //
// DESCRIPTION								     //
//    This file contains the routines to process the SA requests for 	     //
//    records of the DeviceGroupName type.				     //
//									     //
// DATA STRUCTURES							     //
//    None								     //
//									     //
// FUNCTIONS								     //
//    sa_DeviceGroupNameRecord						     //
//									     //
//									     //
//===========================================================================//


#include "os_g.h"
#include "ib_mad.h"
#include "ib_sa.h"
#include "iba/stl_sa_priv.h"
#include "ib_status.h"
#include "cs_g.h"
#include "mai_g.h"
#include "sm_counters.h"
#include "sm_l.h"
#include "sa_l.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>

static Status_t
sa_DeviceGroupName_GetTable(Mai_t *maip, uint32_t *records);

Status_t
sa_DeviceGroupNameRecord(Mai_t *maip, sa_cntxt_t* sa_cntxt ) {
	uint32_t			records, recordLength;
	uint16_t			attribOffset;

	IB_ENTER("sa_DeviceGroupNameRecord", maip, 0, 0, 0);

	//
	//	Assume failure.
	//
	records = 0;
	recordLength = 0;

	// Check Method
	if (maip->base.method == SA_CM_GET) {
		INCREMENT_COUNTER(smCounterSaRxGetDgNameRecord);
	} else if (maip->base.method == SA_CM_GETTABLE) {
		INCREMENT_COUNTER(smCounterSaRxGetTblDgNameRecord);
	} else {
		// Generate an error response and return.
		maip->base.status = MAD_STATUS_BAD_METHOD;
		IB_LOG_WARN_FMT(__func__, "invalid Method: %s (%u)",
			cs_getMethodText(maip->base.method), maip->base.method);
		(void)sa_send_reply(maip, sa_cntxt);
		IB_EXIT(__func__, VSTATUS_OK);
		return VSTATUS_OK;
	}
	// Check Base and Class Version
	if (maip->base.bversion == STL_BASE_VERSION && maip->base.cversion == STL_SA_CLASS_VERSION) {
		recordLength = sizeof(STL_DEVICE_GROUP_NAME_RECORD);
		(void)sa_DeviceGroupName_GetTable(maip, &records);
	} else {
		// Generate an error response and return.
		maip->base.status = MAD_STATUS_BAD_CLASS;
		IB_LOG_WARN_FMT(__func__, "invalid Base and/or Class Versions: Base %u, Class %u",
			maip->base.bversion, maip->base.cversion);
		(void)sa_send_reply(maip, sa_cntxt);
		IB_EXIT(__func__, VSTATUS_OK);
		return VSTATUS_OK;
	}

	//
	// Determine reply status
	//
	if (maip->base.status != MAD_STATUS_OK) {
		records = 0;
	} else if (records == 0) {
		maip->base.status = MAD_STATUS_SA_NO_RECORDS;
	} else if ((maip->base.method == SA_CM_GET) && (records != 1)) {
		IB_LOG_WARN_FMT(__func__, "sa_DeviceGroupNameRecord: too many records for SA_CM_GET: %d", records);
		records = 0;
		maip->base.status = MAD_STATUS_SA_TOO_MANY_RECS;
	}

	attribOffset =  recordLength + Calculate_Padding(recordLength);

	/* setup attribute offset for possible RMPP transfer */
	sa_cntxt->attribLen = attribOffset;
	sa_cntxt_data( sa_cntxt, sa_data, records * attribOffset);
	(void)sa_send_reply(maip, sa_cntxt);

	IB_EXIT("sa_DeviceGroupNameRecord", VSTATUS_OK);
	return(VSTATUS_OK);
}

static Status_t
sa_DeviceGroupName_GetTable(Mai_t *maip, uint32_t *records) {
	uint8_t		*data;
	uint32_t	bytes;
	STL_SA_MAD	samad;
	Status_t	status;
	STL_DEVICE_GROUP_NAME_RECORD	record;
	int		i;
	
	IB_ENTER("sa_DeviceGroupName_GetTable", maip, *records, 0, 0);

	*records = 0;
	data = sa_data;
	bytes = Calculate_Padding(sizeof(STL_DEVICE_GROUP_NAME_RECORD));

	//  Verify the size of the data received for the request
	if ( maip->datasize-sizeof(STL_SA_MAD_HEADER) < sizeof(STL_DEVICE_GROUP_NAME_RECORD) ) {
		IB_LOG_ERROR_FMT(__func__,
			"invalid MAD length; size of STL_DEVICE_GROUP_NAME_RECORD[%"PRISZT"], datasize[%d]",
			sizeof(STL_DEVICE_GROUP_NAME_RECORD), (int)(maip->datasize-sizeof(STL_SA_MAD_HEADER)));
		maip->base.status = MAD_STATUS_SA_REQ_INVALID;
		IB_EXIT("sa_DeviceGroupName_GetTable", MAD_STATUS_SA_REQ_INVALID);
		return (MAD_STATUS_SA_REQ_INVALID);
	}

	BSWAPCOPY_STL_SA_MAD((STL_SA_MAD*)maip->data, &samad, sizeof(STL_DEVICE_GROUP_NAME_RECORD));

	status = sa_create_template_mask(maip->base.aid, samad.header.mask);
	if (status != VSTATUS_OK) {
		IB_LOG_WARN_FMT(__func__,
			"sa_create_template_mask failed.  maip->base.aid 0x%x samad.header.mask 0x%"PRIx64,
			maip->base.aid, samad.header.mask);
		IB_EXIT("sa_DeviceGroupRecord_GetTable", VSTATUS_OK);
		return VSTATUS_OK;
	}

	(void)vs_rdlock(&old_topology_lock);

	for (i = 0; i < old_topology.vfs_ptr->dg_config.number_of_dgs; i++)
	{
		if ((status = sa_check_len(data, sizeof(STL_DEVICE_GROUP_NAME_RECORD), bytes)) != VSTATUS_OK) {
			maip->base.status = MAD_STATUS_SA_NO_RESOURCES;
			IB_LOG_ERROR_FMT("sa_DeviceGroupName_GetTable", "Reached size limit at %d records", *records);
			goto done;
		}
		StringCopy((char*)record.DeviceGroupName, old_topology.vfs_ptr->dg_config.dg[i]->name, MAX_DG_NAME);
		BSWAPCOPY_STL_DEVICE_GROUP_NAME_RECORD(&record, (STL_DEVICE_GROUP_NAME_RECORD*)data);
		(void)sa_template_test_mask(samad.header.mask, samad.data, &data, sizeof(STL_DEVICE_GROUP_NAME_RECORD), bytes, records);
	}

done:
	(void)vs_rwunlock(&old_topology_lock);

	IB_EXIT("sa_DeviceGroupName_GetTable", VSTATUS_OK);
	return VSTATUS_OK;	
}