snmpnotifyfilterprofiletable.c

开发snmp的开发包有两个开放的SNMP开发库

    case ACTION:
        /*
         * The variable has been stored in string 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 
         */
        memcpy(StorageTmp->snmpNotifyFilterProfileName, var_val, var_val_len);
        StorageTmp->snmpNotifyFilterProfileNameLen = var_val_len;
        break;


    case UNDO:
        /*
         * Back out any changes made in the ACTION case 
         */
        SNMP_FREE(StorageTmp->snmpNotifyFilterProfileName);
        StorageTmp->snmpNotifyFilterProfileName = tmpvar;
        StorageTmp->snmpNotifyFilterProfileNameLen = tmplen;
        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! 
         */
        SNMP_FREE(tmpvar);
        break;
    }
    return SNMP_ERR_NOERROR;
}



int
write_snmpNotifyFilterProfileStorType(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 int      tmpvar;
    long            value = *((long *) var_val);
    struct snmpNotifyFilterProfileTable_data *StorageTmp = NULL;
    size_t          newlen =
        name_len -
        (sizeof(snmpNotifyFilterProfileTable_variables_oid) / sizeof(oid) +
         3 - 1);


    DEBUGMSGTL(("snmpNotifyFilterProfileTable",
                "write_snmpNotifyFilterProfileStorType entering action=%d...  \n",
                action));
    if (action != RESERVE1 &&
        (StorageTmp = (struct snmpNotifyFilterProfileTable_data *)
         header_complex((struct header_complex_index *)
                        snmpNotifyFilterProfileTableStorage, NULL,
                        &name[sizeof
                              (snmpNotifyFilterProfileTable_variables_oid)
                              / sizeof(oid) + 3 - 1], &newlen, 1, NULL,
                        NULL)) == NULL) {
        if ((StorageTmp = StorageNew) == NULL)
            return SNMP_ERR_NOSUCHNAME;     /* remove if you support creation here */
    }

    switch (action) {
    case RESERVE1:
        if (var_val_type != ASN_INTEGER) {
            return SNMP_ERR_WRONGTYPE;
        }
        if (var_val_len != sizeof(long)) {
            return SNMP_ERR_WRONGLENGTH;
        }
        if (value != SNMP_STORAGE_OTHER && value != SNMP_STORAGE_VOLATILE
            && value != SNMP_STORAGE_NONVOLATILE) {
            return SNMP_ERR_WRONGVALUE;
        }
        break;


    case RESERVE2:
        /*
         * memory reseveration, final preparation... 
         */
        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 
         */
        tmpvar = StorageTmp->snmpNotifyFilterProfileStorType;
        StorageTmp->snmpNotifyFilterProfileStorType = *((long *) var_val);
        break;


    case UNDO:
        /*
         * Back out any changes made in the ACTION case 
         */
        StorageTmp->snmpNotifyFilterProfileStorType = tmpvar;
        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_snmpNotifyFilterProfileRowStatus(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)
{
    struct snmpNotifyFilterProfileTable_data *StorageTmp = NULL;
    static struct snmpNotifyFilterProfileTable_data *StorageDel;
    size_t          newlen =
        name_len -
        (sizeof(snmpNotifyFilterProfileTable_variables_oid) / sizeof(oid) +
         3 - 1);
    static int      old_value;
    int             set_value = *((long *) var_val);
    netsnmp_variable_list *vars;
    struct header_complex_index *hciptr;


    DEBUGMSGTL(("snmpNotifyFilterProfileTable",
                "write_snmpNotifyFilterProfileRowStatus entering action=%d...  \n",
                action));
    StorageTmp = (struct snmpNotifyFilterProfileTable_data *)
        header_complex((struct header_complex_index *)
                       snmpNotifyFilterProfileTableStorage, NULL,
                       &name[sizeof
                             (snmpNotifyFilterProfileTable_variables_oid) /
                             sizeof(oid) + 3 - 1], &newlen, 1, NULL, NULL);

    switch (action) {
    case RESERVE1:
        if (var_val_type != ASN_INTEGER || var_val == NULL) {
            return SNMP_ERR_WRONGTYPE;
        }
        if (var_val_len != sizeof(long)) {
            return SNMP_ERR_WRONGLENGTH;
        }
        if (set_value < 1 || set_value > 6 || set_value == RS_NOTREADY) {
            return SNMP_ERR_WRONGVALUE;
        }
        /*
         * stage one: test validity 
         */
        if (StorageTmp == NULL) {
            /*
             * create the row now? 
             */


            /*
             * ditch illegal values now 
             */
            if (set_value == RS_ACTIVE || set_value == RS_NOTINSERVICE) {
                return SNMP_ERR_INCONSISTENTVALUE;
            }
        } else {
            /*
             * row exists.  Check for a valid state change 
             */
            if (set_value == RS_CREATEANDGO
                || set_value == RS_CREATEANDWAIT) {
                /*
                 * can't create a row that exists 
                 */
                return SNMP_ERR_INCONSISTENTVALUE;
            }
            if ((set_value == RS_ACTIVE || set_value == RS_NOTINSERVICE) &&
                StorageTmp->snmpNotifyFilterProfileNameLen == 0) {
                /*
                 * can't activate row without a profile name
                 */
                return SNMP_ERR_INCONSISTENTVALUE;
            }
            /*
             * XXX: interaction with row storage type needed 
             */
        }

        /*
         * memory reseveration, final preparation... 
         */
        if (StorageTmp == NULL &&
            (set_value == RS_CREATEANDGO
             || set_value == RS_CREATEANDWAIT)) {
            /*
             * creation 
             */
            vars = NULL;

            snmp_varlist_add_variable(&vars, NULL, 0,
                                      ASN_PRIV_IMPLIED_OCTET_STR, NULL, 0);

            if (header_complex_parse_oid
                (&
                 (name
                  [sizeof(snmpNotifyFilterProfileTable_variables_oid) /
                   sizeof(oid) + 2]), newlen, vars) != SNMPERR_SUCCESS) {
                snmp_free_var(vars);
                return SNMP_ERR_INCONSISTENTNAME;
            }

            StorageNew =
                SNMP_MALLOC_STRUCT(snmpNotifyFilterProfileTable_data);
            memdup((u_char **) & (StorageNew->snmpTargetParamsName),
                   vars->val.string, vars->val_len);
            StorageNew->snmpTargetParamsNameLen = vars->val_len;
            StorageNew->snmpNotifyFilterProfileStorType = ST_NONVOLATILE;

            StorageNew->snmpNotifyFilterProfileRowStatus = RS_NOTREADY;
            snmp_free_var(vars);
        }


        break;

    case RESERVE2:
        break;

    case FREE:
        /*
         * XXX: free, zero vars 
         */
        /*
         * Release any resources that have been allocated 
         */
        if (StorageNew != NULL) {
            SNMP_FREE(StorageNew->snmpTargetParamsName);
            SNMP_FREE(StorageNew->snmpNotifyFilterProfileName);
            free(StorageNew);
            StorageNew = NULL;
        }
        break;




    case ACTION:
        /*
         * The variable has been stored in set_value 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 (StorageTmp == NULL &&
            (set_value == RS_CREATEANDGO ||
             set_value == RS_CREATEANDWAIT)) {
            /*
             * row creation, so add it 
             */
            if (StorageNew != NULL)
                snmpNotifyFilterProfileTable_add(StorageNew);
            /*
             * XXX: ack, and if it is NULL? 
             */
        } else if (set_value != RS_DESTROY) {
            /*
             * set the flag? 
             */
            if (StorageTmp == NULL)
                return SNMP_ERR_GENERR; /* should never ever get here */
            
            old_value = StorageTmp->snmpNotifyFilterProfileRowStatus;
            StorageTmp->snmpNotifyFilterProfileRowStatus =
                *((long *) var_val);
        } else {
            /*
             * destroy...  extract it for now 
             */
            if (StorageTmp) {
                hciptr =
                    header_complex_find_entry
                    (snmpNotifyFilterProfileTableStorage, StorageTmp);
                StorageDel = (struct snmpNotifyFilterProfileTable_data *)
                    header_complex_extract_entry((struct
                                                  header_complex_index **)
                                                 &snmpNotifyFilterProfileTableStorage,
                                                 hciptr);
            }

        }
        break;

    case UNDO:
        /*
         * Back out any changes made in the ACTION case 
         */
        if (StorageTmp == NULL &&
            (set_value == RS_CREATEANDGO ||
             set_value == RS_CREATEANDWAIT)) {
            /*
             * row creation, so remove it again 
             */
            hciptr =
                header_complex_find_entry
                (snmpNotifyFilterProfileTableStorage, StorageNew);
            StorageDel = (struct snmpNotifyFilterProfileTable_data *)
                header_complex_extract_entry((struct header_complex_index
                                              **)
                                             &snmpNotifyFilterProfileTableStorage,
                                             hciptr);
            /*
             * XXX: free it 
             */
        } else if (StorageDel != NULL) {
            /*
             * row deletion, so add it again 
             */
            snmpNotifyFilterProfileTable_add(StorageDel);
            StorageDel = NULL;
        } else if (set_value != RS_DESTROY) {
            if (StorageTmp)
                StorageTmp->snmpNotifyFilterProfileRowStatus = old_value;
        }
        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 (StorageDel != NULL) {
            SNMP_FREE(StorageDel->snmpTargetParamsName);
            SNMP_FREE(StorageDel->snmpNotifyFilterProfileName);
            free(StorageDel);
            StorageDel = NULL;
        }
        if (StorageTmp && set_value == RS_CREATEANDGO) {
            if (StorageTmp->snmpNotifyFilterProfileNameLen)
                StorageTmp->snmpNotifyFilterProfileRowStatus = RS_ACTIVE;
            StorageNew = NULL;
        } else if (StorageTmp && set_value == RS_CREATEANDWAIT) {
            if (StorageTmp->snmpNotifyFilterProfileNameLen)
                StorageTmp->snmpNotifyFilterProfileRowStatus = RS_NOTINSERVICE;
            StorageNew = NULL;
        }
        break;
    }
    return SNMP_ERR_NOERROR;
}



char           *
get_FilterProfileName(const char *paramName, size_t paramName_len,
               size_t * profileName_len)
{
    netsnmp_variable_list *vars = NULL;
    struct snmpNotifyFilterProfileTable_data *data;

    /*
     * put requested info into var structure 
     */
    snmp_varlist_add_variable(&vars, NULL, 0, ASN_PRIV_IMPLIED_OCTET_STR,
                              (u_char *) paramName, paramName_len);

    /*
     * get the data from the header_complex storage 
     */
    data = (struct snmpNotifyFilterProfileTable_data *)
        header_complex_get(snmpNotifyFilterProfileTableStorage, vars);

    /*
     * free search index 
     */
    snmp_free_var(vars);

    /*
     * return the requested information (if this row is active) 
     */
    if (data && data->snmpNotifyFilterProfileRowStatus == RS_ACTIVE) {
        *profileName_len = data->snmpNotifyFilterProfileNameLen;
        return data->snmpNotifyFilterProfileName;
    }

    *profileName_len = 0;
    return NULL;
}