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RMLeakyBucketControl.c

Go to the documentation of this file.

/* This file was generated by mib2c and is intended for use as a mib module
   for the ucd-snmp snmpd agent. */

#include <netinet/in.h>

#ifdef IN_UCD_SNMP_SOURCE
/* If we're compiling this file inside the ucd-snmp source tree */


/* This should always be included first before anything else */
#include <config.h>


/* minimal include directives */
#include "mibincl.h"
#include "util_funcs.h"


#else /* !IN_UCD_SNMP_SOURCE */


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


#endif /* !IN_UCD_SNMP_SOURCE */


#include "RMLeakyBucketControl.h"

#include "rmClient.h"
#include "utility.h"    
 
#include <stdlib.h>
#include <string.h>
#include <ucd-snmp/util_funcs.h>


/* 
 * RMLeakyBucketControl_variables_oid:
 *   this is the top level oid that we want to register under.  This
 *   is essentially a prefix, with the suffix appearing in the
 *   variable below.
 */


oid RMLeakyBucketControl_variables_oid[] = { 1,3,6,1,4,1,343,2,15,1,2,3,4 };


/* 
 * variable4 RMLeakyBucketControl_variables:
 *   this variable defines function callbacks and type return information 
 *   for the RMLeakyBucketControl mib section 
 */


struct variable4 RMLeakyBucketControl_variables[] = {
/*  magic number        , variable type , ro/rw , callback fn  , L, oidsuffix */
#define   LEAKYBUCKETCONTROLNEXTINDEX  1
  { LEAKYBUCKETCONTROLNEXTINDEX, ASN_UNSIGNED  , RONLY , var_RMLeakyBucketControl, 1, { 1 } },
#define   LEAKYBUCKETLOGGINGRATE  5
  { LEAKYBUCKETLOGGINGRATE, ASN_TIMETICKS , RWRITE, var_LeakyBucketControlTable, 3, { 2,1,2 } },
#define   LEAKYBUCKETCONTROLREFCOUNT  6
  { LEAKYBUCKETCONTROLREFCOUNT, ASN_INTEGER   , RONLY , var_LeakyBucketControlTable, 3, { 2,1,3 } },
#define   LEAKYBUCKETCONTROLSTATUS  7
  { LEAKYBUCKETCONTROLSTATUS, ASN_INTEGER   , RWRITE, var_LeakyBucketControlTable, 3, { 2,1,4 } },

};
/*    (L = length of the oidsuffix) */


/*
 * init_RMLeakyBucketControl():
 *   Initialization routine.  This is called when the agent starts up.
 *   At a minimum, registration of your variables should take place here.
 */
void init_RMLeakyBucketControl(void) {


  /* register ourselves with the agent to handle our mib tree */
  REGISTER_MIB("RMLeakyBucketControl", RMLeakyBucketControl_variables, variable4,
               RMLeakyBucketControl_variables_oid);


  /* place any other initialization junk you need here */
}


/*
 * var_RMLeakyBucketControl():
 *   This function is called every time the agent gets a request for
 *   a scalar variable that might be found within your mib section
 *   registered above.  It is up to you to do the right thing and
 *   return the correct value.
 *     You should also correct the value of "var_len" if necessary.
 *
 *   Please see the documentation for more information about writing
 *   module extensions, and check out the examples in the examples
 *   and mibII directories.
 */
unsigned char *
var_RMLeakyBucketControl(struct variable *vp, 
                oid     *name, 
                size_t  *length, 
                int     exact, 
                size_t  *var_len, 
                WriteMethod **write_method)
{


  /* variables we may use later */
  static u_long ulong_ret;

  if (header_generic(vp,name,length,exact,var_len,write_method)
                                  == MATCH_FAILED )
    return NULL;


  /* 
   * this is where we do the value assignments for the mib results.
   */
  switch(vp->magic) {


    case LEAKYBUCKETCONTROLNEXTINDEX:
        
        ulong_ret = getNewId(LEAKYBUCKETCONTROL);
        return (unsigned char *) &ulong_ret;


    default:
      ERROR_MSG("");
  }
  return NULL;
}


/*
 * var_LeakyBucketControlTable():
 *   Handle this table separately from the scalar value case.
 *   The workings of this are basically the same as for var_RMLeakyBucketControl above.
 */
unsigned char *
var_LeakyBucketControlTable(struct variable *vp,
            oid     *name,
            size_t  *length,
            int     exact,
            size_t  *var_len,
            WriteMethod **write_method)
{


  /* variables we may use later */
  static long long_ret;

  unsigned long id;

  id = header_MyGeneric(vp,name,length,exact,var_len,write_method, LEAKYBUCKETCONTROL);
  if(id == 0) {
    switch(vp->magic) {

      case LEAKYBUCKETLOGGINGRATE:
          *write_method = write_leakyBucketLoggingRate;
          break;

      case LEAKYBUCKETCONTROLSTATUS:
          *write_method = write_leakyBucketControlStatus;
          break;


      default:
        ERROR_MSG("");
    }
    return NULL;
  }


  /* 
   * this is where we do the value assignments for the mib results.
   */
  switch(vp->magic) {


    case LEAKYBUCKETLOGGINGRATE:
        *write_method = write_leakyBucketLoggingRate;
        long_ret = 0;
        getInteger32(LEAKYBUCKETCONTROL, LEAKYBUCKETCONTROL_LOGGINGRATE, id, &long_ret);
        return (unsigned char *) &long_ret;

    case LEAKYBUCKETCONTROLREFCOUNT:
        
        long_ret = 0;
        getInteger32(LEAKYBUCKETCONTROL, LEAKYBUCKETCONTROL_REFCOUNT, id, &long_ret);
        return (unsigned char *) &long_ret;

    case LEAKYBUCKETCONTROLSTATUS:
        *write_method = write_leakyBucketControlStatus;
        long_ret = 0;
        getInteger32(LEAKYBUCKETCONTROL, LEAKYBUCKETCONTROL_STATUS, id, &long_ret);
        return (unsigned char *) &long_ret;


    default:
      ERROR_MSG("");
  }
  return NULL;
}




int
write_leakyBucketLoggingRate(int      action,
            u_char   *var_val,
            u_char   var_val_type,
            size_t   var_val_len,
            u_char   *statP,
            oid      *name,
            size_t   name_len)
{
  static long *long_ret;
  int size;

  int createNew, ret;
  unsigned long id;
  size_t prefix_len;

  static unsigned long oldVal;

  oid suffix[] = { 2, 1, 2 };
  createNew = 0;
  prefix_len = sizeof(RMLeakyBucketControl_variables_oid)/sizeof(oid);

  id = header_writeGeneric(name, name_len, RMLeakyBucketControl_variables_oid, prefix_len, suffix, 3, LEAKYBUCKETCONTROL, &createNew);

  if(id == 0 || (createNew && action == ACTION))
    return SNMP_ERR_NOSUCHNAME;



  switch ( action ) {
        case RESERVE1:
          if (var_val_type != ASN_TIMETICKS){
              fprintf(stderr, "write to leakyBucketLoggingRate not ASN_TIMETICKS\n");
              return SNMP_ERR_WRONGTYPE;
          }
          if (var_val_len > sizeof(long_ret)){
              fprintf(stderr,"write to leakyBucketLoggingRate: bad length\n");
              return SNMP_ERR_WRONGLENGTH;
          }
          break;


        case RESERVE2:
          size = var_val_len;
          long_ret = (long *) var_val;

          if(!createNew) {
            ret = getUnsigned(LEAKYBUCKETCONTROL, LEAKYBUCKETCONTROL_LOGGINGRATE, id, &oldVal);
            if(ret)
              return SNMP_ERR_INCONSISTENTVALUE;
          }


          break;


        case FREE:
             /* Release any resources that have been allocated */
          break;


        case ACTION:
             /* The variable has been stored in long_ret for
             you to use, and you have just been asked to do something with
             it.  Note that anything done here must be reversable in the UNDO case */
          ret = setUnsigned(LEAKYBUCKETCONTROL, LEAKYBUCKETCONTROL_LOGGINGRATE, id, ( (unsigned long) *long_ret )/ 100);
          if(ret)
            return SNMP_ERR_INCONSISTENTVALUE;

          break;


        case UNDO:
             /* Back out any changes made in the ACTION case */
          setUnsigned(LEAKYBUCKETCONTROL, LEAKYBUCKETCONTROL_LOGGINGRATE, id, oldVal);
          break;


        case COMMIT:
             /* Things are working well, so it's now safe to make the change
             permanently.  Make sure that anything done here can't fail! */
          break;
  }
  return SNMP_ERR_NOERROR;
}




int
write_leakyBucketControlStatus(int      action,
            u_char   *var_val,
            u_char   var_val_type,
            size_t   var_val_len,
            u_char   *statP,
            oid      *name,
            size_t   name_len)
{
  static long *long_ret;
  int size;

  int createNew, ret;
  unsigned long id;
  size_t prefix_len;

  static long oldStatus;
  static int rowCreated;

  oid suffix[] = { 2, 1, 4 };
  createNew = 0;
  prefix_len = sizeof(RMLeakyBucketControl_variables_oid)/sizeof(oid);

  id = header_writeGeneric(name, name_len, RMLeakyBucketControl_variables_oid, prefix_len, suffix, 3, LEAKYBUCKETCONTROL, &createNew);


  switch ( action ) {
        case RESERVE1:
          if (var_val_type != ASN_INTEGER){
              fprintf(stderr, "write to leakyBucketControlStatus not ASN_INTEGER\n");
              return SNMP_ERR_WRONGTYPE;
          }
          if (var_val_len > sizeof(long_ret)){
              fprintf(stderr,"write to leakyBucketControlStatus: bad length\n");
              return SNMP_ERR_WRONGLENGTH;
          }
          break;


        case RESERVE2:
          size = var_val_len;
          long_ret = (long *) var_val;

          rowCreated = 0;
          oldStatus = 0;
          if (*long_ret < ACTIVE || *long_ret > DESTROY ||
               *long_ret == NOTREADY)
            return SNMP_ERR_INCONSISTENTVALUE;

          if(createNew &&
              (*long_ret != CREATEANDWAIT && *long_ret != CREATEANDGO))
            return SNMP_ERR_INCONSISTENTVALUE;

          if (*long_ret == NOTINSERVICE || *long_ret == ACTIVE) {
            ret = getInteger32(LEAKYBUCKETCONTROL, LEAKYBUCKETCONTROL_STATUS, id, &oldStatus);
            if(ret)
              return SNMP_ERR_INCONSISTENTVALUE;
          }


          break;


        case FREE:
             /* Release any resources that have been allocated */
          break;


        case ACTION:
             /* The variable has been stored in long_ret for
             you to use, and you have just been asked to do something with
             it.  Note that anything done here must be reversable in the UNDO case */
          if(*long_ret == CREATEANDWAIT || *long_ret == CREATEANDGO) {
            ret = newEntry(LEAKYBUCKETCONTROL, id);
            if(ret)
              return SNMP_ERR_INCONSISTENTVALUE;

            rowCreated = 1;
          }
          else if (*long_ret == NOTINSERVICE || *long_ret == ACTIVE) {
            ret = setInteger32(LEAKYBUCKETCONTROL, LEAKYBUCKETCONTROL_STATUS, id, *long_ret);
            if(ret)
              return SNMP_ERR_INCONSISTENTVALUE;
          }
          else if(*long_ret == DESTROY) {
            ret = deleteEntry(LEAKYBUCKETCONTROL, id);
            if(ret)
              return SNMP_ERR_INCONSISTENTVALUE;
          }
          break;


        case UNDO:
             /* Back out any changes made in the ACTION case */
          if(rowCreated) {
            deleteEntry(LEAKYBUCKETCONTROL, id);
          }
          else if(*long_ret == NOTINSERVICE || *long_ret == ACTIVE) {
            if(oldStatus != 0)
              setInteger32(LEAKYBUCKETCONTROL, LEAKYBUCKETCONTROL_STATUS, id, oldStatus);
          }
          else if((*long_ret == DESTROY)) {

            // note: don't know how to do this yet. need to be fixed.

          }

          break;


        case COMMIT:
             /* Things are working well, so it's now safe to make the change
             permanently.  Make sure that anything done here can't fail! */
          if(*long_ret == CREATEANDGO) {
            ret = setInteger32(LEAKYBUCKETCONTROL, LEAKYBUCKETCONTROL_STATUS, id, ACTIVE);
            if(ret) {
              deleteEntry(LEAKYBUCKETCONTROL, id);
              return SNMP_ERR_COMMITFAILED;
            }
          }
          break;
  }
  return SNMP_ERR_NOERROR;
}

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