openserSIPRegUserLookupTable.c

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/*
 * $Id: openserSIPRegUserLookupTable.c 4518 2008-07-28 15:39:28Z henningw $
 *
 * SNMPStats Module 
 * Copyright (C) 2006 SOMA Networks, INC.
 * Written by: Jeffrey Magder (jmagder@somanetworks.com)
 *
 * This file is part of Kamailio, a free SIP server.
 *
 * Kamailio is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version
 *
 * Kamailio is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 * USA
 *
 * History:
 * --------
 * 2006-11-23 initial version (jmagder)
 * 
 * Note: this file originally auto-generated by mib2c using 
 * mib2c.array-user.conf
 *
 * This file implements the openserSIPRegUserLookupTable.  For a full
 * description of the table, please see the OPENSER-SIP-SERVER-MIB.
 *
 * This file is much larger and more complicated than the files for other
 * tables.  This is because the table is settable, bringing a lot of SNMP
 * overhead.  Most of the file consists of the original auto-generated
 * code (aside from white space and comment changes).
 *
 * The functions that have been modified to implement this table are the
 * following:
 *
 * 1) openserSIPRegUserLookupTable_extract_index() 
 *
 *    - Modified to fail if the index is invalid.  The index is invalid if it
 *      does not match up with the global userLookupCounter.
 *
 * 2) openserSIPRegUserLookupTable_can_[activate|deactivate|delete]()
 *   
 *    - Simplified to always allow activation/deactivation/deletion. 
 *
 * 3) openserSIPRegUserLookupTable_set_reserve1()
 *
 *    - The reserve1 phase passes if the row is new, and the rowStatus column
 *      is being set to 'createAndGo'
 *    - The reserve1 phase passes if the row is not new, and the rowStatus
 *      column is being set to 'destroy'
 *
 * 4) openserSIPRegUserLookupTable_set_action()
 *
 *    - The function was modified to populate the row with the userIndex of the
 *      supplied URI if that URI was found on the system, and set the rowStatus
 *      to 'active'.  If the URI was not found, the rowStatus is set to
 *      'notInService' 
 *
 * You can safely ignore the other functions.  
 */

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

#include <net-snmp/library/snmp_assert.h>

#include "openserSIPRegUserLookupTable.h"
#include "snmpstats_globals.h"
#include "hashTable.h"
#include "interprocess_buffer.h"

static netsnmp_handler_registration *my_handler = NULL;
static netsnmp_table_array_callbacks cb;

oid openserSIPRegUserLookupTable_oid[] = { 
   openserSIPRegUserLookupTable_TABLE_OID };

size_t openserSIPRegUserLookupTable_oid_len = 
   OID_LENGTH(openserSIPRegUserLookupTable_oid);


/*
 * Initializes the openserSIPRegUserLookupTable table.  This step is easier
 * than in the other tables because there is no table population.  All table
 * population takes place during run time. 
 */
void init_openserSIPRegUserLookupTable(void)
{
   initialize_table_openserSIPRegUserLookupTable();
}

/* the *_row_copy routine */
static int openserSIPRegUserLookupTable_row_copy(
      openserSIPRegUserLookupTable_context * dst,
      openserSIPRegUserLookupTable_context * src)
{
   if(!dst||!src)
   {
      return 1;
   }
      
   
   /* copy index, if provided */
   if(dst->index.oids)
   {
      free(dst->index.oids);
   }

   if(snmp_clone_mem( (void*)&dst->index.oids, src->index.oids,
            src->index.len * sizeof(oid) )) {
      dst->index.oids = NULL;
      return 1;
   }

   dst->index.len = src->index.len;
   
   /* Copy out almost all components of the structure.  We don't copy out
    * the openserSIPRegUSerLookupURI (or its length).  */
   dst->openserSIPRegUserLookupIndex     = src->openserSIPRegUserLookupIndex;
   dst->openserSIPRegUserIndex           = src->openserSIPRegUserIndex;
   dst->openserSIPRegUserLookupRowStatus = 
      src->openserSIPRegUserLookupRowStatus;

   return 0;
}

/*
 * the *_extract_index routine. (Mostly auto-generated) 
 *
 * This routine is called when a set request is received for an index
 * that was not found in the table container. Here, we parse the oid
 * in the individual index components and copy those indexes to the
 * context. Then we make sure the indexes for the new row are valid.
 *
 * It has been modified from its original form in that if the indexes are
 * invalid, then they aren't returned.  An index is invalid if:
 *
 *   1) It is < 1
 *   2) It doesn't match the global userLookupIndex. (As per MIB specs)
 *
 */
int openserSIPRegUserLookupTable_extract_index(
      openserSIPRegUserLookupTable_context * ctx, 
      netsnmp_index * hdr)
{
   /*
    * temporary local storage for extracting oid index
    *
    * extract index uses varbinds (netsnmp_variable_list) to parse
    * the index OID into the individual components for each index part.
    */
   netsnmp_variable_list var_openserSIPRegUserLookupIndex;
   int err;

   /* copy index, if provided */
   if(hdr) {
      netsnmp_assert(ctx->index.oids == NULL);
      if((hdr->len > MAX_OID_LEN) ||
         snmp_clone_mem( (void*)&ctx->index.oids, hdr->oids,
                     hdr->len * sizeof(oid) )) {
         return -1;
      }
      ctx->index.len = hdr->len;
   }

   /* Set up the index */
   memset(&var_openserSIPRegUserLookupIndex, 0x00, 
         sizeof(var_openserSIPRegUserLookupIndex));

   var_openserSIPRegUserLookupIndex.type = ASN_UNSIGNED;
   var_openserSIPRegUserLookupIndex.next_variable = NULL;


   /* parse the oid into the individual index components */
   err = parse_oid_indexes( hdr->oids, hdr->len, 
         &var_openserSIPRegUserLookupIndex );

   if (err == SNMP_ERR_NOERROR) {
      
      /* copy index components into the context structure */
      ctx->openserSIPRegUserLookupIndex = 
         *var_openserSIPRegUserLookupIndex.val.integer;

      /* 
       * Check to make sure that the index corresponds to the
       * global_userLookupCounter, as per the MIB specifications. 
       */
      if (*var_openserSIPRegUserLookupIndex.val.integer != 
            global_UserLookupCounter || 
          *var_openserSIPRegUserLookupIndex.val.integer < 1) {
         err = -1;
      }

   }

   /* parsing may have allocated memory. free it. */
   snmp_reset_var_buffers( &var_openserSIPRegUserLookupIndex );

   return err;
}

/*
 * This is an auto-generated function.  In general the *_can_activate routine 
 * is called when a row is changed to determine if all the values set are
 * consistent with the row's rules for a row status of ACTIVE.  If not, then 0
 * can be returned to prevent the row status from becomming final. 
 *
 * For our purposes, we have no need for this check, so we always return 1.
 */
int openserSIPRegUserLookupTable_can_activate(
      openserSIPRegUserLookupTable_context *undo_ctx,
      openserSIPRegUserLookupTable_context *row_ctx,
      netsnmp_request_group * rg)
{
   return 1;
}

/* 
 * This is an auto-generated function.  In general the *_can_deactivate routine
 * is called when a row that is currently ACTIVE is set to a state other than
 * ACTIVE. If there are conditions in which a row should not be allowed to
 * transition out of the ACTIVE state (such as the row being referred to by
 * another row or table), check for them here.
 *
 * Since this table has no reason why this shouldn't be allowed, we always
 * return 1;
 */
int openserSIPRegUserLookupTable_can_deactivate(
      openserSIPRegUserLookupTable_context *undo_ctx,
      openserSIPRegUserLookupTable_context *row_ctx,
      netsnmp_request_group * rg)
{
   return 1;
}

/*
 * This is an auto-generated function.  In general the *_can_delete routine is
 * called to determine if a row can be deleted.  This usually involved checking
 * if it can be deactivated, and if it can be, then checking for other
 * conditions.  
 *
 * Since this table ha no reason why row deletion shouldn't be allowed, we
 * always return 1, unless we can't deactivate.  
 */
int openserSIPRegUserLookupTable_can_delete(
      openserSIPRegUserLookupTable_context *undo_ctx,
      openserSIPRegUserLookupTable_context *row_ctx,
      netsnmp_request_group * rg)
{
   if(openserSIPRegUserLookupTable_can_deactivate(undo_ctx,row_ctx,rg) != 1)
      return 0;
   
   return 1;
}

/*
 * This is an auto-generated function.  
 *
 * The *_create_row routine is called by the table handler to create a new row
 * for a given index. This is the first stage of the row creation process.  The
 * *_set_reserve_* functions can be used to prevent the row from being inserted
 * into the table even if the row passes any preliminary checks set here. 
 *
 * Returns a newly allocated openserSIPRegUserLookupTable_context structure (a
 * row in the table) if the indexes are legal.  NULL will be returned otherwise. 
 */
openserSIPRegUserLookupTable_context *
openserSIPRegUserLookupTable_create_row( netsnmp_index* hdr)
{
   openserSIPRegUserLookupTable_context * ctx =
      SNMP_MALLOC_TYPEDEF(openserSIPRegUserLookupTable_context);

   if (!ctx) 
   {
      return NULL;
   }
   
   /* 
    * Extract the index.  The function has been modified from its original
    * auto-generated version in that the function will fail if index is
    * somehow invalid. 
    */
   if(openserSIPRegUserLookupTable_extract_index( ctx, hdr )) 
   {

      if (NULL != ctx->index.oids)
      {
         free(ctx->index.oids);
      }

      free(ctx);

      return NULL;
   }

   ctx->openserSIPRegUserLookupURI       = NULL;
   ctx->openserSIPRegUserLookupURI_len   = 0;
   ctx->openserSIPRegUserIndex           = 0;
   ctx->openserSIPRegUserLookupRowStatus = 0;

   return ctx;
}

/* 
 * Auto-generated function.  The *_duplicate row routine
 */
openserSIPRegUserLookupTable_context *
openserSIPRegUserLookupTable_duplicate_row( 
      openserSIPRegUserLookupTable_context * row_ctx)
{
   openserSIPRegUserLookupTable_context * dup;

   if(!row_ctx)
      return NULL;

   dup = SNMP_MALLOC_TYPEDEF(openserSIPRegUserLookupTable_context);
   if(!dup)
      return NULL;
      
   if(openserSIPRegUserLookupTable_row_copy(dup,row_ctx)) {
      free(dup);
      dup = NULL;
   }

   return dup;
}

/* 
 * The *_delete_row method is auto-generated, and is called to delete a row.
 *
 * This will not be called if earlier checks said that this row can't be
 * deleted.  However, in our implementation there is never a reason why this
 * function can't be called. 
 */
netsnmp_index * openserSIPRegUserLookupTable_delete_row(
      openserSIPRegUserLookupTable_context * ctx )
{
   if(ctx->index.oids)
   {
      free(ctx->index.oids);
   }


   if (ctx->openserSIPRegUserLookupURI != NULL) 
   {
      pkg_free(ctx->openserSIPRegUserLookupURI);
   }

   free( ctx );

   return NULL;
}


/*
 * Large parts of this function have been auto-generated.  The functions purpose
 * is to check to make sure all SNMP set values for the given row, have been
 * valid.  If not, then the process is supposed to be aborted.  Otherwise, we
 * pass on to the *_reserve2 function.  
 *
 * For our purposes, our only check is to make sure that either of the following
 * conditions are true: 
 *
 * 1) If this row already exists, then the SET request is setting the rowStatus
 *    column to 'destroy'.
 *
 * 2) If this row does not already exist, then the SET request is setting the 
 *    rowStatus to 'createAndGo'. 
 *
 * Since the MIB specified there are to be no other modifications to the row,
 * any other condition is considered illegal, and will result in an SNMP error
 * being returned. 
 */
void openserSIPRegUserLookupTable_set_reserve1( netsnmp_request_group *rg )
{
   openserSIPRegUserLookupTable_context *row_ctx =
      (openserSIPRegUserLookupTable_context *)rg->existing_row;

   netsnmp_variable_list *var;

   netsnmp_request_group_item *current;

   int rc;

   for( current = rg->list; current; current = current->next ) {

      var = current->ri->requestvb;
      rc = SNMP_ERR_NOERROR;

      switch(current->tri->colnum) 
      {

         case COLUMN_OPENSERSIPREGUSERLOOKUPURI:

            if (row_ctx->openserSIPRegUserLookupRowStatus == 0 ||
                row_ctx->openserSIPRegUserLookupRowStatus == 
                TC_ROWSTATUS_NOTREADY) {

            } else {
               rc = SNMP_ERR_BADVALUE;
            }
            
            break;

         case COLUMN_OPENSERSIPREGUSERLOOKUPROWSTATUS:

            /** RowStatus = ASN_INTEGER */
            rc = netsnmp_check_vb_type_and_size(var, ASN_INTEGER,
                  sizeof(
                  row_ctx->openserSIPRegUserLookupRowStatus));
          
            /* Want to make sure that if it already exists that it
             * is setting it to 'destroy', or if it doesn't exist,
             * that it is setting it to 'createAndGo' */
            if (row_ctx->openserSIPRegUserLookupRowStatus == 0 && 
                *var->val.integer != TC_ROWSTATUS_CREATEANDGO) 
            {
               rc = SNMP_ERR_BADVALUE;
            } 
         
            else if (row_ctx->openserSIPRegUserLookupRowStatus ==
                  TC_ROWSTATUS_ACTIVE && 
                  *var->val.integer != 
                  TC_ROWSTATUS_DESTROY) 
            {
               rc = SNMP_ERR_BADVALUE;
            }
   
         break;

         default: /** We shouldn't get here */
            rc = SNMP_ERR_GENERR;
            snmp_log(LOG_ERR, "unknown column in openserSIPReg"
                    "UserLookupTable_set_reserve1\n");
      }

      if (rc) 
      {
         netsnmp_set_mode_request_error(
               MODE_SET_BEGIN, current->ri, rc );
      }

      rg->status = SNMP_MAX( rg->status, current->ri->status );
   }

}

/*
 * Auto-generated function.  The function is supposed to check for any
 * last-minute conditions not being met.  However, we don't have any such
 * conditions, so we leave the default function as is.
 */
void openserSIPRegUserLookupTable_set_reserve2( netsnmp_request_group *rg )
{
   openserSIPRegUserLookupTable_context *undo_ctx = 
      (openserSIPRegUserLookupTable_context *)rg->undo_info;

   netsnmp_request_group_item *current;

   netsnmp_variable_list *var;

   int rc;

   rg->rg_void = rg->list->ri;

   for( current = rg->list; current; current = current->next ) {

      var = current->ri->requestvb;
      rc = SNMP_ERR_NOERROR;

      switch(current->tri->colnum) 
      {
         case COLUMN_OPENSERSIPREGUSERLOOKUPURI:
            break;

         case COLUMN_OPENSERSIPREGUSERLOOKUPROWSTATUS:
         
            /** RowStatus = ASN_INTEGER */
            rc = netsnmp_check_vb_rowstatus(current->ri->requestvb,
               undo_ctx ? 
               undo_ctx->openserSIPRegUserLookupRowStatus:0);

            rg->rg_void = current->ri;
   
            break;

         default: /** We shouldn't get here */
            netsnmp_assert(0); /** why wasn't this caught in reserve1? */
      }

      if (rc)
      {
         netsnmp_set_mode_request_error(MODE_SET_BEGIN, current->ri, rc);
      }
   }

}

/*
 * This function is called only when all the *_reserve[1|2] functions were
 * succeful.  Its purpose is to make any changes to the row before it is
 * inserted into the table.  
 *
 * In the case of this table, this involves looking up the index of the
 * requested user in the URI to userIndex mapping hash table.  If the result is
 * found, the index will be copied to the row, and the rowStatus set to
 * 'active'.  Otherwise, the row status will be set to 'notInService'
 *
 * All other handling is auto-generated.
 */
void openserSIPRegUserLookupTable_set_action( netsnmp_request_group *rg )
{  
   /* First things first, we need to consume the interprocess buffer, in
    * case something has changed. We want to return the freshest data. */
   consumeInterprocessBuffer();

   aorToIndexStruct_t *hashRecord;

   netsnmp_variable_list *var;

   openserSIPRegUserLookupTable_context *row_ctx = 
      (openserSIPRegUserLookupTable_context *)rg->existing_row;

   openserSIPRegUserLookupTable_context *undo_ctx = 
      (openserSIPRegUserLookupTable_context *)rg->undo_info;

   netsnmp_request_group_item *current;

   int         row_err = 0;

   /* Copy the actual data to the row. */
   for( current = rg->list; current; current = current->next ) {

      var = current->ri->requestvb;

      switch(current->tri->colnum) 
      {

         case COLUMN_OPENSERSIPREGUSERLOOKUPURI:

            row_ctx->openserSIPRegUserLookupURI = 
               pkg_malloc(sizeof(char)*(var->val_len + 1));

            memcpy(row_ctx->openserSIPRegUserLookupURI,
                  var->val.string,
                  var->val_len);
         
            /* Usually NetSNMP won't terminate strings with '\0'.
             * The hash function expect them to be terminated
             * though, so we have to add this on to the end.  The +1
             * in the malloc makes sure of the extra space for us.
             */   
            row_ctx->openserSIPRegUserLookupURI[var->val_len] = '\0';

            row_ctx->openserSIPRegUserLookupURI_len = var->val_len;
      
            /* Do the lookup.  If we could find the record, then set
             * the index and the row status to active.  Otherwise,
             * set the row to notInService */
            hashRecord = 
               findHashRecord(hashTable, 
                  (char *)
                  row_ctx->openserSIPRegUserLookupURI,
                  HASH_SIZE);

            if (hashRecord == NULL) 
            {
               row_ctx->openserSIPRegUserIndex = 0;            
               row_ctx->openserSIPRegUserLookupRowStatus = 
                  TC_ROWSTATUS_NOTINSERVICE;
            } 
            else 
            {
               row_ctx->openserSIPRegUserIndex = 
                  hashRecord->userIndex;
               row_ctx->openserSIPRegUserLookupRowStatus = 
                  TC_ROWSTATUS_ACTIVE;
            }

            break;

         case COLUMN_OPENSERSIPREGUSERLOOKUPROWSTATUS:

            row_ctx->openserSIPRegUserLookupRowStatus = 
               *var->val.integer;

            if (*var->val.integer == TC_ROWSTATUS_CREATEANDGO) 
            {
               rg->row_created = 1;
               /* Set to NOT READY until the lookup URI has
                * been supplied. */
               row_ctx->openserSIPRegUserLookupRowStatus =
                  TC_ROWSTATUS_NOTREADY; 
            }
            else if (*var->val.integer == TC_ROWSTATUS_DESTROY) 
            {
               rg->row_deleted = 1;
            }
            else 
            {
               /* We should never be here, because the RESERVE
                * functions should have taken care of all other
                * values. */
            LM_ERR("invalid RowStatus in openserSIPStatusCodesTable\n");
            }

            break;

         default: /** We shouldn't get here */
            netsnmp_assert(0); /** why wasn't this caught in reserve1? */
      }
   }

   /*
    * done with all the columns. Could check row related
    * requirements here.
    */
#ifndef openserSIPRegUserLookupTable_CAN_MODIFY_ACTIVE_ROW
   if( undo_ctx && RS_IS_ACTIVE(undo_ctx->openserSIPRegUserLookupRowStatus) &&
      row_ctx && RS_IS_ACTIVE(row_ctx->openserSIPRegUserLookupRowStatus) ) {
         row_err = 1;
   }
#endif

   /*
    * check activation/deactivation
    */
   row_err = netsnmp_table_array_check_row_status(&cb, rg,
         row_ctx ? &row_ctx->openserSIPRegUserLookupRowStatus : NULL,
         undo_ctx ? &undo_ctx->openserSIPRegUserLookupRowStatus : NULL);

   if(row_err) {
      netsnmp_set_mode_request_error(MODE_SET_BEGIN,
            (netsnmp_request_info*)rg->rg_void, row_err);
      return;
   }

}

/*
 * The COMMIT phase is used to do any extra processing after the ACTION phase.
 * In our table, there is nothing to do, so the function body is empty.
 */
void openserSIPRegUserLookupTable_set_commit( netsnmp_request_group *rg )
{

}


/*
 * This function is called if the *_reserve[1|2] calls failed.  Its supposed to
 * free up any resources allocated earlier.  However, we already take care of
 * all these resources in earlier functions.  So for our purposes, the function
 * body is empty. 
 */
void openserSIPRegUserLookupTable_set_free( netsnmp_request_group *rg )
{

}


/* 
 * This function is called if an ACTION phase fails, to do extra clean-up work.
 * We don't have anything complicated enough to warrant putting anything in this
 * function.  Therefore, its just left with an empty function body. 
 */
void openserSIPRegUserLookupTable_set_undo( netsnmp_request_group *rg )
{

}


/*
 * Initialize the openserSIPRegUserLookupTable table by defining how it is
 * structured. 
 *
 * This function is mostly auto-generated.
 */
void initialize_table_openserSIPRegUserLookupTable(void)
{
   netsnmp_table_registration_info *table_info;

   if(my_handler) {
      snmp_log(LOG_ERR, "initialize_table_openserSIPRegUserLookup"
            "Table_handler called again\n");
      return;
   }

   memset(&cb, 0x00, sizeof(cb));

   /** create the table structure itself */
   table_info = SNMP_MALLOC_TYPEDEF(netsnmp_table_registration_info);

   my_handler = netsnmp_create_handler_registration(
         "openserSIPRegUserLookupTable",
         netsnmp_table_array_helper_handler,
         openserSIPRegUserLookupTable_oid,
         openserSIPRegUserLookupTable_oid_len,
         HANDLER_CAN_RWRITE);
         
   if (!my_handler || !table_info) {
      snmp_log(LOG_ERR, "malloc failed in "
             "initialize_table_openserSIPRegUserLookup"
             "Table_handler\n");
      return; /** mallocs failed */
   }

   /*
    * Setting up the table's definition
    */

   netsnmp_table_helper_add_index(table_info, ASN_UNSIGNED);

   table_info->min_column = openserSIPRegUserLookupTable_COL_MIN;
   table_info->max_column = openserSIPRegUserLookupTable_COL_MAX;

   /*
    * registering the table with the master agent
    */
   cb.get_value = openserSIPRegUserLookupTable_get_value;
   cb.container = netsnmp_container_find(
         "openserSIPRegUserLookupTable_primary:"
         "openserSIPRegUserLookupTable:"
         "table_container");

   cb.can_set = 1;
   cb.create_row    = 
      (UserRowMethod*)openserSIPRegUserLookupTable_create_row;
   cb.duplicate_row = 
      (UserRowMethod*)openserSIPRegUserLookupTable_duplicate_row;
   cb.delete_row    = 
      (UserRowMethod*)openserSIPRegUserLookupTable_delete_row;
   cb.row_copy      = 
      (Netsnmp_User_Row_Operation *)
         openserSIPRegUserLookupTable_row_copy;

   cb.can_activate   = (Netsnmp_User_Row_Action *)
      openserSIPRegUserLookupTable_can_activate;
   cb.can_deactivate = (Netsnmp_User_Row_Action *)
      openserSIPRegUserLookupTable_can_deactivate;
   cb.can_delete     = (Netsnmp_User_Row_Action *)
      openserSIPRegUserLookupTable_can_delete;

   cb.set_reserve1 = openserSIPRegUserLookupTable_set_reserve1;
   cb.set_reserve2 = openserSIPRegUserLookupTable_set_reserve2;
   cb.set_action   = openserSIPRegUserLookupTable_set_action;
   cb.set_commit   = openserSIPRegUserLookupTable_set_commit;
   cb.set_free     = openserSIPRegUserLookupTable_set_free;
   cb.set_undo     = openserSIPRegUserLookupTable_set_undo;

   DEBUGMSGTL(("initialize_table_openserSIPRegUserLookupTable",
            "Registering table openserSIPRegUserLookupTable "
            "as a table array\n"));
   
   netsnmp_table_container_register(my_handler, table_info, &cb, 
         cb.container, 1);
}

/* 
 * This function was auto-generated and didn't need modifications from its
 * auto-generation.  It is called to handle an SNMP GET request. 
 */
int openserSIPRegUserLookupTable_get_value(
         netsnmp_request_info *request,
         netsnmp_index *item,
         netsnmp_table_request_info *table_info )
{
   netsnmp_variable_list *var = request->requestvb;

   openserSIPRegUserLookupTable_context *context =
      (openserSIPRegUserLookupTable_context *)item;

   switch(table_info->colnum) 
   {
      case COLUMN_OPENSERSIPREGUSERLOOKUPURI:
         /** SnmpAdminString = ASN_OCTET_STR */
         snmp_set_var_typed_value(var, ASN_OCTET_STR, 
               (unsigned char*)
               context->openserSIPRegUserLookupURI,
               context->openserSIPRegUserLookupURI_len);
      break;
   
      case COLUMN_OPENSERSIPREGUSERINDEX:
         /** UNSIGNED32 = ASN_UNSIGNED */
         snmp_set_var_typed_value(var, ASN_UNSIGNED,
                (unsigned char*)
                &context->openserSIPRegUserIndex,
                sizeof(context->openserSIPRegUserIndex));
      break;
   
      case COLUMN_OPENSERSIPREGUSERLOOKUPROWSTATUS:
         /** RowStatus = ASN_INTEGER */
         snmp_set_var_typed_value(var, ASN_INTEGER,
               (unsigned char*)
               &context->openserSIPRegUserLookupRowStatus,
               sizeof(
               context->openserSIPRegUserLookupRowStatus));
      break;
   
   default: /** We shouldn't get here */
      snmp_log(LOG_ERR, "unknown column in "
             "openserSIPRegUserLookupTable_get_value\n");
      return SNMP_ERR_GENERR;
   }

   return SNMP_ERR_NOERROR;
}

/*
 * openserSIPRegUserLookupTable_get_by_idx
 */
const openserSIPRegUserLookupTable_context *
openserSIPRegUserLookupTable_get_by_idx(netsnmp_index * hdr)
{
   return (const openserSIPRegUserLookupTable_context *)
      CONTAINER_FIND(cb.container, hdr );
}