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408 lines
11 KiB
C++
408 lines
11 KiB
C++
/* ------------------------------------------------------------------------ */
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/* Copyright 2002-2018, OpenNebula Project, OpenNebula Systems */
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/* */
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/* Licensed under the Apache License, Version 2.0 (the "License"); you may */
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/* not use this file except in compliance with the License. You may obtain */
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/* a copy of the License at */
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/* */
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/* http://www.apache.org/licenses/LICENSE-2.0 */
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/* */
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/* Unless required by applicable law or agreed to in writing, software */
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/* distributed under the License is distributed on an "AS IS" BASIS, */
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/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. */
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/* See the License for the specific language governing permissions and */
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/* limitations under the License. */
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/* -------------------------------------------------------------------------*/
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#ifndef VDC_H_
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#define VDC_H_
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#include <set>
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#include "PoolObjectSQL.h"
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#include "NebulaLog.h"
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using namespace std;
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/**
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* Represents a set of resources in a zone. The class is able to manage
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* the ACL rules associated to the set.
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*/
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class ResourceSet
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{
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public:
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static string type_to_vdc_str(PoolObjectSQL::ObjectType type)
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{
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switch (type)
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{
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case PoolObjectSQL::HOST: return "HOST";
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case PoolObjectSQL::NET: return "VNET";
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case PoolObjectSQL::DATASTORE: return "DATASTORE";
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case PoolObjectSQL::CLUSTER: return "CLUSTER";
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default: return "";
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}
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}
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/**
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* Constructor for the ResourceSet, ACL rules are set based on the
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* resource type
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*/
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ResourceSet(PoolObjectSQL::ObjectType _type);
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/**
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* Writes the ResourceSet in XML form the the given stream, in the form:
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* <RESOURCE>
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* <ZONE_ID>
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* <RESOURCE_ID>
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* </RESOURCE>
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* RESOURCE is set from xml_name attribute.
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* @param oss the outpur string stream
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*/
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void to_xml(ostringstream &oss) const;
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/**
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* Builds the ResourceSet from the xml node
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* @param content of the resource set
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* @return 0 on success
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*/
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int from_xml_node(vector<xmlNodePtr>& content);
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/**
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* Adds a resource to the set. The ACL rules are updated for the groups
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*
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* @param groups set of groups to apply the rules to
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* @param zone_id ID of the zone
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* @param id ID of the vnet
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* @param error returns the error reason, if any
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*
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* @return 0 on success
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*/
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int add(const set<int>& groups, int zone_id, int id,string& error);
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/**
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* Deletes a resource from the set. The ACL rules are updated
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*
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* @param groups set of groups to apply the rules to
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* @param zone_id ID of the zone
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* @param id ID of the vnet
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* @param error returns the error reason, if any
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*
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* @return 0 on success
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*/
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int del(const set<int>& groups, int zone_id, int id, string& error);
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/**
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* Set ACL rules for a group to access this resource set
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*
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* @param group_id the group
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*/
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void add_group_rules(int group_id);
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/**
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* Remove ACL access rules to this resource set for a group
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*
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* @param group_id the group
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*/
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void del_group_rules(int group_id);
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/**
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* Add an ACL rule for group and resource
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*
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* @param group_id of the group
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* @param zone_id of the zone
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* @param id of the resource
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*/
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void add_rule(int group_id, int zone_id, int id);
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/**
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* Remove an ACL rule for group and resource
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*/
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void del_rule(int group_id, int zone_id, int id);
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private:
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/**
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* <ZONE_ID, RESOURCE_ID> pairs for the resource set
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*/
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set<pair<int, int> > resources;
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/**
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* <resource, rights> pairs to add/remove to ACL list for this set.
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*/
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set<pair<long long, long long> > rules;
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/**
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* The resource type of this set.
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*/
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PoolObjectSQL::ObjectType type;
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/**
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* XML Name of the resource
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*/
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string xml_name;
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/**
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* Insert acl rules into rules attribute.
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*
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* @param default_vdc_acl the mask for the acls.
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* @param type Object type for the acls.
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*/
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void insert_default_rules(string default_vdc_acl, PoolObjectSQL::ObjectType type);
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};
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/**
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* The Vdc class.
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*/
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class Vdc : public PoolObjectSQL
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{
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public:
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/**
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* Function to print the Vdc object into a string in XML format
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* @param xml the resulting XML string
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* @return a reference to the generated string
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*/
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string& to_xml(string& xml) const;
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/**
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* Rebuilds the object from an xml formatted string
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* @param xml_str The xml-formatted string
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*
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* @return 0 on success, -1 otherwise
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*/
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int from_xml(const string &xml_str);
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/**
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* Adds a Group to the VDC. ACL Rules are updated only for this group.
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*
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* @param group_id ID of the group
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* @param error_msg Returns the error reason, if any
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*
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* @return 0 on success
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*/
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int add_group(int group_id, string& error_msg);
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/**
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* Deletes a Group from the VDC. ACL Rules are updated only for this group.
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*
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* @param group_id ID of the group
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* @param error_msg Returns the error reason, if any
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*
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* @return 0 on success
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*/
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int del_group(int group_id, string& error_msg);
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/**
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* Adds a cluster to the VDC
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*
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* @param zone_id ID of the zone
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* @param cluster_id ID of the cluster
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* @param error_msg Returns the error reason, if any
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*
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* @return 0 on success
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*/
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int add_cluster(int zone_id, int cluster_id, string& error_msg)
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{
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return clusters.add(groups, zone_id, cluster_id, error_msg);
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}
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/**
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* Deletes a cluster from the VDC
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*
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* @param zone_id ID of the zone
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* @param cluster_id ID of the cluster
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* @param error_msg Returns the error reason, if any
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*
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* @return 0 on success
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*/
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int del_cluster(int zone_id, int cluster_id, string& error_msg)
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{
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return clusters.del(groups, zone_id, cluster_id, error_msg);
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}
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/**
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* Adds a host to the VDC
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*
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* @param zone_id ID of the zone
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* @param host_id ID of the host
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* @param error_msg Returns the error reason, if any
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*
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* @return 0 on success
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*/
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int add_host(int zone_id, int host_id, string& error_msg)
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{
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return hosts.add(groups, zone_id, host_id, error_msg);
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}
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/**
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* Deletes a host from the VDC
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*
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* @param zone_id ID of the zone
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* @param host_id ID of the host
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* @param error_msg Returns the error reason, if any
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*
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* @return 0 on success
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*/
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int del_host(int zone_id, int host_id, string& error_msg)
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{
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return hosts.del(groups, zone_id, host_id, error_msg);
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}
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/**
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* Adds a datastore to the VDC
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*
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* @param zone_id ID of the zone
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* @param datastore_id ID of the datastore
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* @param error_msg Returns the error reason, if any
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*
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* @return 0 on success
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*/
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int add_datastore(int zone_id, int datastore_id, string& error_msg)
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{
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return datastores.add(groups, zone_id, datastore_id, error_msg);
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}
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/**
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* Deletes a datastore from the VDC
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*
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* @param zone_id ID of the zone
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* @param datastore_id ID of the datastore
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* @param error_msg Returns the error reason, if any
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*
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* @return 0 on success
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*/
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int del_datastore(int zone_id, int datastore_id, string& error_msg)
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{
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return datastores.del(groups, zone_id, datastore_id, error_msg);
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}
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/**
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* Adds a vnet to the VDC
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*
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* @param zone_id ID of the zone
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* @param vnet_id ID of the vnet
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* @param error_msg Returns the error reason, if any
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*
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* @return 0 on success
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*/
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int add_vnet(int zone_id, int vnet_id, string& error_msg)
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{
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return vnets.add(groups, zone_id, vnet_id, error_msg);
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}
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/**
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* Deletes a vnet from the VDC
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*
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* @param zone_id ID of the zone
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* @param vnet_id ID of the vnet
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* @param error_msg Returns the error reason, if any
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*
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* @return 0 on success
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*/
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int del_vnet(int zone_id, int vnet_id, string& error_msg)
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{
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return vnets.del(groups, zone_id, vnet_id, error_msg);
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}
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/**
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* Special ID to refer to all OpenNebula resources, from any cluster
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* or in cluster none (* in ACL rules).
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*/
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static const int ALL_RESOURCES;
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private:
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// -------------------------------------------------------------------------
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// Friends
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// -------------------------------------------------------------------------
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friend class VdcPool;
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// *************************************************************************
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// Constructor
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// *************************************************************************
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Vdc(int id, Template* vdc_template);
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~Vdc();
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// *************************************************************************
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// Attributes (Private)
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// *************************************************************************
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set<int> groups;
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ResourceSet clusters;
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ResourceSet hosts;
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ResourceSet datastores;
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ResourceSet vnets;
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// *************************************************************************
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// DataBase implementation (Private)
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// *************************************************************************
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static const char * db_names;
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static const char * db_bootstrap;
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static const char * table;
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/**
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* Execute an INSERT or REPLACE Sql query.
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* @param db The SQL DB
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* @param replace Execute an INSERT or a REPLACE
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* @param error_str Returns the error reason, if any
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* @return 0 one success
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*/
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int insert_replace(SqlDB *db, bool replace, string& error_str);
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/**
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* Bootstraps the database table(s) associated to the Vdc
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* @return 0 on success
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*/
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static int bootstrap(SqlDB * db)
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{
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ostringstream oss(Vdc::db_bootstrap);
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return db->exec_local_wr(oss);
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};
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/**
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* Writes the Vdc in the database.
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* @param db pointer to the db
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* @return 0 on success
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*/
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int insert(SqlDB *db, string& error_str);
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/**
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* Writes/updates the Vdc's data fields in the database.
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* @param db pointer to the db
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* @return 0 on success
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*/
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int update(SqlDB *db)
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{
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string error_str;
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return insert_replace(db, true, error_str);
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}
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/**
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* Drops the Vdc from the database
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* @param db pointer to the db
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* @return 0 on success
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*/
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int drop(SqlDB *db);
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/**
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* Factory method for Vdc templates
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*/
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Template * get_new_template() const
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{
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return new Template;
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}
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};
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#endif /*VDC_H_*/
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