/*

 * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved.

 *

 * U.S. Government Rights - Commercial software. Government users are subject

 * to the Sun Microsystems, Inc. standard license agreement and applicable

 * provisions of the FAR and its supplements.

 *

 *

 * This distribution may include materials developed by third parties. Sun,

 * Sun Microsystems, the Sun logo and Solaris are trademarks or registered

 * trademarks of Sun Microsystems, Inc. in the U.S. and other countries.

 *

 */

/*

 * Note: this file originally auto-generated by mib2c using

 *        : mib2c.iterate.conf,v 5.5 2002/12/16 22:50:18 hardaker Exp $

 */

#include <net-snmp/net-snmp-config.h>

#include <net-snmp/net-snmp-includes.h>

#include <net-snmp/agent/net-snmp-agent-includes.h>

#include "stdhdr.h"

#include "entPhysicalTable.h"

#include "entPhysicalContainsTable.h"

#include "entLastChangeTime.h"

#include "entAliasMappingTable.h"

#include "entLPMappingTable.h"

entPhysicalEntry_t *gPhysicalTableTail, *gPhysicalTableHead;

int gPhysicalTableSize;

#define ENTPHYSICALSERIALNUM_CACHE "entphyserialnum_cache"

/* Fix for 4915824 */

#define ENTPHYSICALALIAS_CACHE "entphyalias_cache"

#define ENTPHYSICALASSETID_CACHE "entphyassetid_cache"

/* End of Fix for 4915824 */

static int AddToPhysicalTable(entPhysicalEntry_t *);

static int FreePhysicalEntry(entPhysicalEntry_t *);

/** Initialize the entPhysicalTable table by defining its contents and how it's structured */

void

initialize_table_entPhysicalTable(void)

{

    static oid entPhysicalTable_oid[] = {1,3,6,1,2,1,47,1,1,1};

    netsnmp_table_registration_info *table_info;

    netsnmp_handler_registration *my_handler;

    netsnmp_iterator_info *iinfo;

    /* create the table structure itself */

    table_info = SNMP_MALLOC_TYPEDEF(netsnmp_table_registration_info);

    iinfo = SNMP_MALLOC_TYPEDEF(netsnmp_iterator_info);

    /* if your table is read only, it's easiest to change the

       HANDLER_CAN_RWRITE definition below to HANDLER_CAN_RONLY */

    /* Fix for 4921485: Temporarily disabling write access, until we */

    /*                  actually need to re-enable it */

    my_handler = netsnmp_create_handler_registration("entPhysicalTable",

                                                     entPhysicalTable_handler,

                                                     entPhysicalTable_oid,

                                                     OID_LENGTH(entPhysicalTable_oid),

                                                     HANDLER_CAN_RONLY);

    /* End of Fix for 4921485 */

    /* Future Fix for 4922782: When we re-enable write access, we will also */

    /*                         look into 4914919 - persistency.  Of course */

    /*                         we need to remove 4921485 and enable the */

    /*                         CAN_RWRITE.   Treat the write handling code */

    /*                         in entPhysicalTable_handlerNeeds as hostile: */

    /*                         everything should be tested and properly */

    /*                         reviewed.  Pay special attention to when */

    /*                         to return error codes */

/*

    my_handler = netsnmp_create_handler_registration("entPhysicalTable",

                                                     entPhysicalTable_handler,

                                                     entPhysicalTable_oid,

                                                     OID_LENGTH(entPhysicalTable_oid),

                                                     HANDLER_CAN_RWRITE);

*/

    /* End of Future Fix for 4922782 */

    if (!my_handler || !table_info || !iinfo)

        return; /* mallocs failed */

    /***************************************************

     * Setting up the table's definition

     */

    netsnmp_table_helper_add_indexes(table_info,

                                     ASN_INTEGER, /* index: entPhysicalIndex */

                                     0);

    table_info->min_column = 2;

    table_info->max_column = 16;

    /* iterator access routines */

    iinfo->get_first_data_point = entPhysicalTable_get_first_data_point;

    iinfo->get_next_data_point = entPhysicalTable_get_next_data_point;

    iinfo->table_reginfo = table_info;

    /***************************************************

     * registering the table with the master agent

     */

    DEBUGMSGTL(("initialize_table_entPhysicalTable",

                "Registering table entPhysicalTable as a table iterator\n"));		 

    netsnmp_register_table_iterator(my_handler, iinfo);

}

/** Initializes the entPhysicalTable module */

void

init_entPhysicalTable(void)

{

    /* here we initialize all the tables we're planning on supporting */

    initialize_table_entPhysicalTable();

    gPhysicalTableTail = gPhysicalTableHead = NULL;

    gPhysicalTableSize = 0;

}

/** returns the first data point within the entPhysicalTable table data.

    Set the my_loop_context variable to the first data point structure

    of your choice (from which you can find the next one).  This could

    be anything from the first node in a linked list, to an integer

    pointer containing the beginning of an array variable.

    Set the my_data_context variable to something to be returned to

    you later that will provide you with the data to return in a given

    row.  This could be the same pointer as what my_loop_context is

    set to, or something different.

    The put_index_data variable contains a list of snmp variable

    bindings, one for each index in your table.  Set the values of

    each appropriately according to the data matching the first row

    and return the put_index_data variable at the end of the function.

*/

netsnmp_variable_list *

entPhysicalTable_get_first_data_point(void **my_loop_context, void **my_data_context,

                                      netsnmp_variable_list *put_index_data,

                                      netsnmp_iterator_info *mydata)

{

    netsnmp_variable_list *vptr;

    entPhysicalEntry_t *zRunner;

    zRunner = gPhysicalTableHead;

    while (zRunner) {

        if (zRunner->entPhysicalIndex > 0)

            break;

        zRunner = zRunner->pNextEntry;

    }

    if (zRunner == NULL) return NULL;

    *my_loop_context = (void *)zRunner;

    *my_data_context = (void *)zRunner;

    vptr = put_index_data;

    snmp_set_var_value(vptr, (u_char *)&zRunner->entPhysicalIndex, sizeof(zRunner->entPhysicalIndex));

    vptr = vptr->next_variable;

    return put_index_data;

}

/** functionally the same as entPhysicalTable_get_first_data_point, but

   my_loop_context has already been set to a previous value and should

   be updated to the next in the list.  For example, if it was a

   linked list, you might want to cast it and the return

   my_loop_context->next.  The my_data_context pointer should be set

   to something you need later and the indexes in put_index_data

   updated again. */

netsnmp_variable_list *

entPhysicalTable_get_next_data_point(void **my_loop_context, void **my_data_context,

                                     netsnmp_variable_list *put_index_data,

                                     netsnmp_iterator_info *mydata)

{

    netsnmp_variable_list *vptr;

    entPhysicalEntry_t *zRunner;

    zRunner = (entPhysicalEntry_t *) *my_loop_context;

    while (zRunner) {

        zRunner = zRunner->pNextEntry;

        if (zRunner && zRunner->entPhysicalIndex > 0)

            break;

    }

    if (zRunner == NULL) return NULL;

    *my_loop_context = (void *)zRunner;

    *my_data_context = (void *)zRunner;

    vptr = put_index_data;

    snmp_set_var_value(vptr, (u_char *)&zRunner->entPhysicalIndex, sizeof(zRunner->entPhysicalIndex));

    vptr = vptr->next_variable;

    return put_index_data;

}

/** handles requests for the entPhysicalTable table, if anything else needs to be done */

int

entPhysicalTable_handler(

    netsnmp_mib_handler               *handler,

    netsnmp_handler_registration      *reginfo,

    netsnmp_agent_request_info        *reqinfo,

    netsnmp_request_info              *requests) {

    netsnmp_request_info *request;

    netsnmp_table_request_info *table_info;

    netsnmp_variable_list *var;

    entPhysicalEntry_t *zPhysicalEntry;

    static char *zentPhySerialNum, *zentPhyAlias, *zentPhyAssetId;

    static char *zOldentPhySerialNum, *zOldentPhyAlias, *zOldentPhyAssetId;

    for(request = requests; request; request = request->next) {

        var = request->requestvb;

        if (request->processed != 0)

            continue;

        /* perform anything here that you need to do before each

           request is processed. */

        /* the following extracts the my_data_context pointer set in

           the loop functions above.  You can then use the results to

           help return data for the columns of the entPhysicalTable table in question */

        zPhysicalEntry = (entPhysicalEntry_t *) netsnmp_extract_iterator_context(request);

        if ((zPhysicalEntry==NULL)||(zPhysicalEntry->entPhysicalIndex <= 0) ) {

            if (reqinfo->mode == MODE_GET) {

                netsnmp_set_request_error(reqinfo, request, SNMP_NOSUCHINSTANCE);

                continue;

            }

            /* XXX: no row existed, if you support creation and this is a

               set, start dealing with it here, else continue */

        }

        /* extracts the information about the table from the request */

        table_info = netsnmp_extract_table_info(request);

        /* table_info->colnum contains the column number requested */

        /* table_info->indexes contains a linked list of snmp variable

           bindings for the indexes of the table.  Values in the list

           have been set corresponding to the indexes of the

           request */

        if (table_info==NULL) {

            continue;

        }

        switch(reqinfo->mode) {

            /* the table_iterator helper should change all GETNEXTs

               into GETs for you automatically, so you don't have to

               worry about the GETNEXT case.  Only GETs and SETs need

               to be dealt with here */

        case MODE_GET:

            switch(table_info->colnum) {

            case COLUMN_ENTPHYSICALDESCR:

                snmp_set_var_typed_value(var, ASN_OCTET_STR, (u_char *) zPhysicalEntry->entPhysicalDescr, strlen(zPhysicalEntry->entPhysicalDescr));

                break;

            case COLUMN_ENTPHYSICALVENDORTYPE:

                snmp_set_var_typed_value(var, ASN_OBJECT_ID, (u_char *) zPhysicalEntry->entPhysicalVendorType, zPhysicalEntry->entPhysicalVendorTypeSize);

                break;

            case COLUMN_ENTPHYSICALCONTAINEDIN:

                snmp_set_var_typed_value(var, ASN_INTEGER, (u_char *)&zPhysicalEntry->entPhysicalContainedIn, sizeof(zPhysicalEntry->entPhysicalContainedIn));

                break;

            case COLUMN_ENTPHYSICALCLASS:

                snmp_set_var_typed_value(var, ASN_INTEGER, (u_char *)&zPhysicalEntry->entPhysicalClass, sizeof(zPhysicalEntry->entPhysicalClass));

                break;

            case COLUMN_ENTPHYSICALPARENTRELPOS:

                snmp_set_var_typed_value(var, ASN_INTEGER, (u_char *)&zPhysicalEntry->entPhysicalParentRelPos, sizeof(zPhysicalEntry->entPhysicalParentRelPos));

                break;

            case COLUMN_ENTPHYSICALNAME:

                snmp_set_var_typed_value(var, ASN_OCTET_STR, (u_char *) zPhysicalEntry->entPhysicalName, strlen(zPhysicalEntry->entPhysicalName));

                break;

            case COLUMN_ENTPHYSICALHARDWAREREV:

                snmp_set_var_typed_value(var, ASN_OCTET_STR, (u_char *) zPhysicalEntry->entPhysicalHardwareRev, strlen(zPhysicalEntry->entPhysicalHardwareRev));

                break;

            case COLUMN_ENTPHYSICALFIRMWAREREV:

                snmp_set_var_typed_value(var, ASN_OCTET_STR, (u_char *) zPhysicalEntry->entPhysicalFirmwareRev, strlen(zPhysicalEntry->entPhysicalFirmwareRev));

                break;

            case COLUMN_ENTPHYSICALSOFTWAREREV:

                snmp_set_var_typed_value(var, ASN_OCTET_STR, (u_char *) zPhysicalEntry->entPhysicalSoftwareRev, strlen(zPhysicalEntry->entPhysicalSoftwareRev));

                break;

            case COLUMN_ENTPHYSICALSERIALNUM:

                snmp_set_var_typed_value(var, ASN_OCTET_STR, (u_char *) zPhysicalEntry->entPhysicalSerialNum, strlen(zPhysicalEntry->entPhysicalSerialNum));

                break;

            case COLUMN_ENTPHYSICALMFGNAME:

                snmp_set_var_typed_value(var, ASN_OCTET_STR, (u_char *) zPhysicalEntry->entPhysicalMfgName, strlen(zPhysicalEntry->entPhysicalMfgName));

                break;

            case COLUMN_ENTPHYSICALMODELNAME:

                snmp_set_var_typed_value(var, ASN_OCTET_STR, (u_char *) zPhysicalEntry->entPhysicalModelName, strlen(zPhysicalEntry->entPhysicalModelName));

                break;

            case COLUMN_ENTPHYSICALALIAS:

                snmp_set_var_typed_value(var, ASN_OCTET_STR, (u_char *) zPhysicalEntry->entPhysicalAlias, strlen(zPhysicalEntry->entPhysicalAlias));

                break;

            case COLUMN_ENTPHYSICALASSETID:

                snmp_set_var_typed_value(var, ASN_OCTET_STR, (u_char *) zPhysicalEntry->entPhysicalAssetID, strlen(zPhysicalEntry->entPhysicalAssetID));

                break;

            case COLUMN_ENTPHYSICALISFRU:

                snmp_set_var_typed_value(var, ASN_INTEGER, (u_char *) &zPhysicalEntry->entPhysicalIsFRU, sizeof(zPhysicalEntry->entPhysicalIsFRU));

                break;

            default:

                /* We shouldn't get here */

                snmp_log(LOG_ERR, "problem encountered in entPhysicalTable_handler: unknown column\n");

            }

            break;

        /* Fix for 4915824: We have rewritten much of the section here, and */

        /*                  we have also improved the way the boundary */

        /*                  checking and return code is handled */

        case MODE_SET_RESERVE1:

            switch(table_info->colnum) {

            case COLUMN_ENTPHYSICALSERIALNUM:

                if (var->type != ASN_OCTET_STR) {

                    netsnmp_set_request_error(reqinfo, request, SNMP_ERR_WRONGTYPE);

                    return SNMP_ERR_WRONGTYPE;

                }

                /* Fix for 4911817: Check for size and boundary limits */

                else if ((const char*)var->val.string != NULL) {

                    if (var->val_len > 32) {

                        netsnmp_set_request_error(reqinfo, request, SNMP_ERR_WRONGLENGTH);

                        return SNMP_ERR_WRONGLENGTH;

                    }

                }

                /* End of Fix for 4911817 */

                break;

            case COLUMN_ENTPHYSICALALIAS:

                if (var->type != ASN_OCTET_STR) {

                    netsnmp_set_request_error(reqinfo, request, SNMP_ERR_WRONGTYPE);

                    return SNMP_ERR_WRONGTYPE;

                }

                /* Fix for 4911817: Check for size and boundary limits */

                else if ((const char*)var->val.string != NULL) {

                    if (var->val_len > 32) {

                        netsnmp_set_request_error(reqinfo, request, SNMP_ERR_WRONGLENGTH);

                        return SNMP_ERR_WRONGLENGTH;

                    }

                }

                /* End of Fix for 4911817 */

                break;

            case COLUMN_ENTPHYSICALASSETID:

                if (var->type != ASN_OCTET_STR) {

                    netsnmp_set_request_error(reqinfo, request, SNMP_ERR_WRONGTYPE);

                    return SNMP_ERR_WRONGTYPE;

                }

                /* Fix for 4911817: Check for size and boundary limits */

                else if ((const char*)var->val.string != NULL) {

                    if (var->val_len > 32) {

                        netsnmp_set_request_error(reqinfo, request, SNMP_ERR_WRONGLENGTH);

                        return SNMP_ERR_WRONGLENGTH;

                    }

                }

                /* End of Fix for 4911817 */

                break;

            default:

                netsnmp_set_request_error(reqinfo, request, SNMP_ERR_NOTWRITABLE);

            }

            break;

        case MODE_SET_RESERVE2:

            switch(table_info->colnum) {

            case COLUMN_ENTPHYSICALSERIALNUM:

                zOldentPhySerialNum = strdup(zPhysicalEntry->entPhysicalSerialNum);

                if (zOldentPhySerialNum == NULL)

                    netsnmp_set_request_error(reqinfo, request, SNMP_ERR_RESOURCEUNAVAILABLE);

                netsnmp_request_add_list_data (request, 

                                               netsnmp_create_data_list(ENTPHYSICALSERIALNUM_CACHE,

                                                                        zOldentPhySerialNum,

                                                                        free));

                break;

            case COLUMN_ENTPHYSICALALIAS:

                zOldentPhyAlias = strdup(zPhysicalEntry->entPhysicalAlias);

                if (zOldentPhyAlias == NULL)

                    netsnmp_set_request_error(reqinfo, request, SNMP_ERR_RESOURCEUNAVAILABLE);

                netsnmp_request_add_list_data (request,

                                               netsnmp_create_data_list(ENTPHYSICALALIAS_CACHE,

                                                                        zOldentPhyAlias,

                                                                        free));

                break;

            case COLUMN_ENTPHYSICALASSETID:

                zOldentPhyAssetId = strdup(zPhysicalEntry->entPhysicalAssetID);

                if (zOldentPhyAssetId == NULL)

                    netsnmp_set_request_error(reqinfo, request, SNMP_ERR_RESOURCEUNAVAILABLE);

                netsnmp_request_add_list_data (request,

                                               netsnmp_create_data_list(ENTPHYSICALASSETID_CACHE,

                                                                        zOldentPhyAssetId,

                                                                        free));

                break;

            default:

                netsnmp_set_request_error(reqinfo, request, SNMP_ERR_NOTWRITABLE);

            }

            break;

        case MODE_SET_FREE:

            switch(table_info->colnum) {

            /* We do not need to free anything, because the zOld* will be */

            /* freed as part of the request */

            case COLUMN_ENTPHYSICALSERIALNUM:

                break;

            case COLUMN_ENTPHYSICALALIAS:

                break;

            case COLUMN_ENTPHYSICALASSETID:

                break;

            default:

                netsnmp_set_request_error(reqinfo, request, SNMP_ERR_NOTWRITABLE);

            }

            break;

        case MODE_SET_ACTION:

            switch(table_info->colnum) {

            case COLUMN_ENTPHYSICALSERIALNUM:

                /* As part of the 4915824 fix, we have improved */

                /* the way we are doing the string copying. Using */

                /* var->val_len will guarantee that we are not copying junk, */

                /* since var->val.string is not NULL terminated*/

                free (zPhysicalEntry->entPhysicalSerialNum);

                zPhysicalEntry->entPhysicalSerialNum = (char *)malloc(sizeof(char) * (var->val_len + 1));

                if (zPhysicalEntry->entPhysicalSerialNum == NULL)

                    netsnmp_set_request_error(reqinfo, request, SNMP_ERR_RESOURCEUNAVAILABLE);

                else {

                    strncpy(zPhysicalEntry->entPhysicalSerialNum, (const char *)var->val.string, var->val_len);

                    zPhysicalEntry->entPhysicalSerialNum[var->val_len] = 0;

                }

                break;		

            case COLUMN_ENTPHYSICALALIAS:

                free (zPhysicalEntry->entPhysicalAlias);

                zPhysicalEntry->entPhysicalAlias = (char *)malloc(sizeof(char) * (var->val_len + 1));

                if (zPhysicalEntry->entPhysicalAlias == NULL)

                    netsnmp_set_request_error(reqinfo, request, SNMP_ERR_RESOURCEUNAVAILABLE);

                else {

                    strncpy(zPhysicalEntry->entPhysicalAlias, (const char *)var->val.string, var->val_len);

                    zPhysicalEntry->entPhysicalAlias[var->val_len] = 0;

                }

                break;

            case COLUMN_ENTPHYSICALASSETID:

                free (zPhysicalEntry->entPhysicalAssetID);

                zPhysicalEntry->entPhysicalAssetID = (char *)malloc(sizeof(char) * (var->val_len + 1));

                if (zPhysicalEntry->entPhysicalAssetID == NULL)

                    netsnmp_set_request_error(reqinfo, request, SNMP_ERR_RESOURCEUNAVAILABLE);

                else {

                    strncpy(zPhysicalEntry->entPhysicalAssetID, (const char *)var->val.string, var->val_len);

                    zPhysicalEntry->entPhysicalAssetID[var->val_len] = 0;

                }

                break;

            default:

                netsnmp_set_request_error(reqinfo, request, SNMP_ERR_NOTWRITABLE);

            }

            break;

        case MODE_SET_COMMIT:

            switch(table_info->colnum) {

            case COLUMN_ENTPHYSICALSERIALNUM:

                /* Fix for 4910657: There is no need to free the data set, */

                /*                  as it is handled by the agent */

                /*                  infrastructure.  However, Purify should */

                /*                  be run to make sure that there is no */

                /*                  memory leak */

                /* End of Fix 4910657 */

                break;

            case COLUMN_ENTPHYSICALALIAS:

                break;

            case COLUMN_ENTPHYSICALASSETID:

                break;

            default:

                netsnmp_set_request_error(reqinfo, request, SNMP_ERR_NOTWRITABLE);

            }

            break;

        case MODE_SET_UNDO:

            switch(table_info->colnum) {

            case COLUMN_ENTPHYSICALSERIALNUM:

                free(zPhysicalEntry->entPhysicalSerialNum);

                zentPhySerialNum = strdup((char *)netsnmp_request_get_list_data(request, ENTPHYSICALSERIALNUM_CACHE));

                zPhysicalEntry->entPhysicalSerialNum = zentPhySerialNum;

                break;

            case COLUMN_ENTPHYSICALALIAS:

                free(zPhysicalEntry->entPhysicalAlias);

                zentPhyAlias = strdup((char *)netsnmp_request_get_list_data(request, ENTPHYSICALALIAS_CACHE));

                zPhysicalEntry->entPhysicalAlias = zentPhyAlias;

                break;

            case COLUMN_ENTPHYSICALASSETID:

                free(zPhysicalEntry->entPhysicalAssetID);

                zentPhyAssetId = strdup((char *)netsnmp_request_get_list_data(request, ENTPHYSICALASSETID_CACHE));

                zPhysicalEntry->entPhysicalAssetID = zentPhyAssetId;

                break;

            default:

                netsnmp_set_request_error(reqinfo, request, SNMP_ERR_NOTWRITABLE);

            }

            break;

        /* End of Fix for 4915824 */           

        default:

            snmp_log(LOG_ERR, "problem encountered in entPhysicalTable_handler: unsupported mode\n");

        }

    }

    return SNMP_ERR_NOERROR;

}

/*

 * Allocates a physical entry. if physidx >0 attempts to reuse an

 * existing entry

 */

int

allocPhysicalEntry(int physidx, entPhysicalEntry_t * newPhysEntry)

{

    entPhysicalEntry_t *physent;

    int index;

    /* Fix for 4927388 */

    oid zerooid[] = { 0, 0 };

    /* End of Fix for 4927388 */

    /* Fix for 4927412 */

    char emptystring[1] = "";

    /* End of Fix for 4927412 */

    /* Fix for 4927412: according to RFC 2737, entPhysicalDescr has to be */

    /*                  unique - NULL should be rejected. */

    /*                  entPhysicalVendorType will default to { 0, 0 } for */