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/*_############################################################################
_##
_## SNMP4J-Agent - MutableVACM.java
_##
_## Copyright (C) 2005-2009 Frank Fock (SNMP4J.org)
_##
_## Licensed under the Apache License, Version 2.0 (the "License");
_## you may not use this file except in compliance with the License.
_## You may obtain a copy of the License at
_##
_## http://www.apache.org/licenses/LICENSE-2.0
_##
_## Unless required by applicable law or agreed to in writing, software
_## distributed under the License is distributed on an "AS IS" BASIS,
_## WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
_## See the License for the specific language governing permissions and
_## limitations under the License.
_##
_##########################################################################*/
package org.snmp4j.agent.security;
import org.snmp4j.smi.OctetString;
import org.snmp4j.smi.OID;
// JavaDoc
import org.snmp4j.security.SecurityModel;
import org.snmp4j.security.SecurityLevel;
import org.snmp4j.agent.mo.snmp.StorageType;
/**
* The MutableVACM interface extends the basic {@link VACM}
* by providing methods to change the configuration of the view-based access
* model.
*
* @author Frank Fock
* @version 1.0
*/
public interface MutableVACM extends VACM {
int VACM_MATCH_EXACT = 1;
int VACM_MATCH_PREFIX = 2;
int VACM_VIEW_INCLUDED = 1;
int VACM_VIEW_EXCLUDED = 2;
/**
* Adds a security name to group mapping to the VACM.
* @param securityModel
* the security model the mapping is based on, see
* {@link SecurityModel} for possible values.
* @param securityName
* the security name to map to a group.
* @param groupName
* the name of the group.
* @param storageType
* the storage type to use for the entry. Possible values are defined
* by {@link StorageType}.
*/
void addGroup(int securityModel,
OctetString securityName,
OctetString groupName,
int storageType);
/**
* Removes a security name to group mapping from the VACM.
* @param securityModel
* the security model the mapping is based on, see
* {@link SecurityModel} for possible values.
* @param securityName
* the mapped security name.
* @return
* true if the entry has been removed, false
* otherwise (i.e. if such an entry does not exists).
*/
boolean removeGroup(int securityModel,
OctetString securityName);
/**
* Adds an access entry for the specified group name.
* @param groupName
* the group name for which to create an access entry.
* @param prefix
* if match is {@link #VACM_MATCH_PREFIX} the context name
* checked by the VACM must exatcly match this value, otherwise a prefix
* match is sufficient.
* @param securityModel
* the security model that must be used to gain access on behalf of this
* entry, see {@link SecurityModel} for possible values.
* @param securityLevel
* the minimum security level that must be used to gain access on behalf of
* this entry, see {@link SecurityLevel} for possible values.
* @param match
* specifies the type of context match used by this entry. Possible values
* are {@link #VACM_MATCH_EXACT} and {@link #VACM_MATCH_PREFIX}.
* @param readView
* the MIB view of the SNMP context to which this conceptual row authorizes
* read access. If the value is the empty string or if there is no active
* MIB view having this value of vacmViewTreeFamilyViewName, then no access
* is granted.
* @param writeView
* the MIB view of the SNMP context to which this conceptual row authorizes
* write access. If the value is the empty string or if there is no active
* MIB view having this value of vacmViewTreeFamilyViewName, then no access
* is granted.
* @param notifyView
* the MIB view of the SNMP context to which this conceptual row authorizes
* access for notifications. If the value is the empty string or if there
* is no active MIB view having this value of vacmViewTreeFamilyViewName,
* then no access is granted.
* @param storageType
* the storage type to use for the entry. Possible values are defined
* by {@link StorageType}.
*/
void addAccess(OctetString groupName,
OctetString prefix,
int securityModel,
int securityLevel,
int match,
OctetString readView,
OctetString writeView,
OctetString notifyView,
int storageType);
/**
* Removes an access entry from the VACM.
* @param groupName
* the group name for which to remove an access entry.
* @param prefix
* the context name or prefix of the access entry.
* @param securityModel
* the security model that must be used to gain access on behalf of this
* entry, see {@link SecurityModel} for possible values.
* @param securityLevel
* the minimum security level that must be used to gain access on behalf of
* this entry, see {@link SecurityLevel} for possible values.
* @return
* true if the entry has been removed, false
* otherwise (i.e. if such an entry does not exists).
*/
boolean removeAccess(OctetString groupName,
OctetString prefix,
int securityModel,
int securityLevel);
/**
* Adds a view tree family to an VACM view.
* @param viewName
* the view name to which a tree family is to be added.
* @param subtree
* the MIB subtree which when combined with the corresponding instance of
* mask (vacmViewTreeFamilyMask) defines a family of view
* subtrees.
* @param mask
* The bit mask which, in combination with the corresponding instance of
* subtree (vacmViewTreeFamilySubtree), defines a family of
* view subtrees. See RFC 3415 vacmViewTreeFamilySubtree definition for
* more details on the bit mask.
* @param type
* specifies whether the subtree is included {@link #VACM_VIEW_INCLUDED}
* or excluded {@link #VACM_VIEW_EXCLUDED} from the view.
* @param storageType
* the storage type to use for the entry. Possible values are defined
* by {@link StorageType}.
*/
void addViewTreeFamily(OctetString viewName,
OID subtree,
OctetString mask,
int type,
int storageType);
/**
* Removes a view tree family from a VACM view.
* @param viewName
* the view name from which a subtree family is to be removed.
* @param subtree
* the MIB subtree associated with this entry.
* @return
* true if the entry has been removed, false
* otherwise (i.e. if such an entry does not exists).
*/
boolean removeViewTreeFamily(OctetString viewName,
OID subtree);
}
