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/* [ICS VERSION STRING: unknown] */

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


#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_DeviceGroupMemberRecord_GetTable(Mai_t *, uint32_t *);

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

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

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

	// Check Method
	if (maip->base.method == SA_CM_GET) {
		INCREMENT_COUNTER(smCounterSaRxGetDgMemberRecord);
	} else if (maip->base.method == SA_CM_GETTABLE) {
		INCREMENT_COUNTER(smCounterSaRxGetTblDgMemberRecord);
	} 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_MEMBER_RECORD);
		(void)sa_DeviceGroupMemberRecord_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_DeviceGroupMemberRecord: 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_DeviceGroupMemberRecord", VSTATUS_OK);
	return(VSTATUS_OK);
}

static Status_t
sa_DeviceGroupMemberRecord_GetTable(Mai_t *maip, uint32_t *records) {
	uint8_t		*data;
	uint32_t	bytes;
	STL_SA_MAD	samad;
	Status_t	status;
	Node_t		*pNode;
	Port_t		*pPort;
	STL_DEVICE_GROUP_MEMBER_RECORD record = {0};
	int		dgIndex = 0;
	STL_LID		portLid = 0;
	bool_t		checkName, checkLid, blindQuery;
	
	IB_ENTER("sa_DeviceGroupMemberRecord_GetTable", maip, *records, 0, 0);

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

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

	blindQuery = (samad.header.mask == 0);

	checkLid = samad.header.mask & STL_DEVICE_GROUP_COMPONENTMASK_LID;
	if (checkLid) {
		portLid = ntoh32(((STL_DEVICE_GROUP_MEMBER_RECORD*)(samad.data))->LID);
	}

	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_DeviceGroupMemberRecord_GetTable", VSTATUS_OK);
		return VSTATUS_OK;
	}

	(void)vs_rdlock(&old_topology_lock);
	
	checkName = samad.header.mask & STL_DEVICE_GROUP_COMPONENTMASK_DGNAME;
	if (checkName) {
		dgIndex = smGetDgIdx(&old_topology.vfs_ptr->dg_config, (char*)((STL_DEVICE_GROUP_MEMBER_RECORD*)samad.data)->DeviceGroupName);
		// Early exit if the device group name doesn't exist.
		if (dgIndex == -1) {
			goto done;
		}
	}

	if (blindQuery) {
		for (dgIndex = 0; dgIndex < old_topology.vfs_ptr->dg_config.number_of_dgs; dgIndex++) {
			for_all_nodes(&old_topology, pNode) {
				for_all_ports(pNode, pPort) {
					if (!sm_valid_port(pPort) || pPort->state <= IB_PORT_DOWN) continue;
					if (isDgMember(dgIndex, pPort->portData)) {
						if ((status = sa_check_len(data, sizeof(STL_DEVICE_GROUP_MEMBER_RECORD), bytes)) != VSTATUS_OK) {
							maip->base.status = MAD_STATUS_SA_NO_RESOURCES;
							IB_LOG_ERROR_FMT("sa_DeviceGroupMemberRecord_GetTable", "Reached size limit at %d records", *records);
							goto done;
						}

						record.LID = (pNode->nodeInfo.NodeType != NI_TYPE_SWITCH) ? pPort->portData->lid : pNode->port[0].portData->lid;
						record.Port = pPort->index;
						record.GUID = (pNode->nodeInfo.NodeType != NI_TYPE_SWITCH) ? pPort->portData->guid : pNode->port[0].portData->guid;
						memcpy((void *) &record.NodeDescription, (void *) &pNode->nodeDesc, sizeof(record.NodeDescription));
						record.NodeDescription.NodeString[STL_NODE_DESCRIPTION_ARRAY_SIZE-1]=0;
						StringCopy((void *)record.DeviceGroupName, (void *) old_topology.vfs_ptr->dg_config.dg[dgIndex]->name, MAX_DG_NAME);
						BSWAPCOPY_STL_DEVICE_GROUP_MEMBER_RECORD(&record, (STL_DEVICE_GROUP_MEMBER_RECORD*)data);
						(void)sa_template_test_mask(samad.header.mask, samad.data, &data, sizeof(STL_DEVICE_GROUP_MEMBER_RECORD), bytes, records);
					}
				}
			}
		}
	} else {
		int foundLid = 0;
		for_all_nodes(&old_topology, pNode) {
			for_all_ports(pNode, pPort) {
				if (!sm_valid_port(pPort) || pPort->state <= IB_PORT_DOWN) continue;

				// If we're looking for a matching device group name, and this port doesn't match,
				// then stop further processing for this port and search the remaining ports on this node.
				if (checkName && !(isDgMember(dgIndex, pPort->portData))) continue;
				
				// If we're looking for a matching LID, and this port doesn't match,
				// then stop further processing for this port and search the remaining ports on this node.
				if (checkLid) {
					if (pNode->nodeInfo.NodeType == NI_TYPE_SWITCH){ 
						if (portLid != pNode->port[0].portData->lid) continue;
					}
					else {
						if (portLid != pPort->portData->lid) continue;
					}
					foundLid = 1;
				}

				// For any query that doesn't specify a matching device group name,
				// return a record for each device group associated with this port.
				if (!checkName) {
					for (dgIndex = 0; (dgIndex = bitset_find_next_one(&pPort->portData->dgMember, dgIndex)) != -1; dgIndex++) {
						if ((status = sa_check_len(data, sizeof(STL_DEVICE_GROUP_MEMBER_RECORD), bytes)) != VSTATUS_OK) {
							maip->base.status = MAD_STATUS_SA_NO_RESOURCES;
							IB_LOG_ERROR_FMT("sa_DeviceGroupMemberRecord_GetTable", "Reached size limit at %d records", *records);
							goto done;
						}

						record.LID = (pNode->nodeInfo.NodeType != NI_TYPE_SWITCH) ? pPort->portData->lid : pNode->port[0].portData->lid;
						record.Port = pPort->index;
						record.GUID = (pNode->nodeInfo.NodeType != NI_TYPE_SWITCH) ? pPort->portData->guid : pNode->port[0].portData->guid;
						memcpy((void *) &record.NodeDescription, (void *) &pNode->nodeDesc, sizeof(record.NodeDescription));
						record.NodeDescription.NodeString[STL_NODE_DESCRIPTION_ARRAY_SIZE-1]=0;
						StringCopy((char *)record.DeviceGroupName, old_topology.vfs_ptr->dg_config.dg[dgIndex]->name, MAX_DG_NAME);

						BSWAPCOPY_STL_DEVICE_GROUP_MEMBER_RECORD(&record, (STL_DEVICE_GROUP_MEMBER_RECORD*)data);
						(void)sa_template_test_mask(samad.header.mask, samad.data, &data, sizeof(STL_DEVICE_GROUP_MEMBER_RECORD), bytes, records);
					}
				} else {
					// We're looking for specific device group membership
					// as specified by the DeviceGroupName that was passed in.
					// No additional iteration through the device group list is required.
					if ((status = sa_check_len(data, sizeof(STL_DEVICE_GROUP_MEMBER_RECORD), bytes)) != VSTATUS_OK) {
						maip->base.status = MAD_STATUS_SA_NO_RESOURCES;
						IB_LOG_ERROR_FMT("sa_DeviceGroupMemberRecord_GetTable", "Reached size limit at %d records", *records);
						goto done;
					}
	
					record.LID = (pNode->nodeInfo.NodeType != NI_TYPE_SWITCH) ? pPort->portData->lid : pNode->port[0].portData->lid;
					record.Port = pPort->index;
					record.GUID = (pNode->nodeInfo.NodeType != NI_TYPE_SWITCH) ? pPort->portData->guid : pNode->port[0].portData->guid;
					memcpy((void *) &record.NodeDescription, (void *) &pNode->nodeDesc, sizeof(record.NodeDescription));
					record.NodeDescription.NodeString[STL_NODE_DESCRIPTION_ARRAY_SIZE-1]=0;
					memset(record.DeviceGroupName, 0, MAX_DG_NAME);
					memcpy(record.DeviceGroupName, ((STL_DEVICE_GROUP_MEMBER_RECORD*)samad.data)->DeviceGroupName, MAX_DG_NAME-1);
	
					BSWAPCOPY_STL_DEVICE_GROUP_MEMBER_RECORD(&record, (STL_DEVICE_GROUP_MEMBER_RECORD*)data);
					(void)sa_template_test_mask(samad.header.mask, samad.data, &data, sizeof(STL_DEVICE_GROUP_MEMBER_RECORD), bytes, records);
				}
			}
			if (foundLid) break;
		}
	}
done:
	(void)vs_rwunlock(&old_topology_lock);

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