Merge "update verigraph"

1 files changed, 0 insertions, 296 deletions

diff --git a/verigraph/service/src/mcnet/components/Network.java b/verigraph/service/src/mcnet/components/Network.java
deleted file mode 100644
index c04f771..0000000
--- a/verigraph/service/src/mcnet/components/Network.java
+++ /dev/null
@@ -1,296 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2017 Politecnico di Torino and others.
- *
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Apache License, Version 2.0
- * which accompanies this distribution, and is available at
- * http://www.apache.org/licenses/LICENSE-2.0
- *******************************************************************************/
-
-package mcnet.components;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-
-import com.microsoft.z3.BoolExpr;
-import com.microsoft.z3.Context;
-import com.microsoft.z3.DatatypeExpr;
-import com.microsoft.z3.Expr;
-import com.microsoft.z3.IntExpr;
-import com.microsoft.z3.Solver;
-import com.microsoft.z3.Z3Exception;
-
-/**Model for a network, encompasses routing and wiring
- * 
- */
-public class Network extends Core{
-
-	Context ctx;
-	NetContext nctx;
-	List<BoolExpr> constraints; 
-	List<NetworkObject> elements;
-
-
-
-	public Network(Context ctx,Object[]... args) {
-		super(ctx, args);
-	}
-
-	@Override
-	protected void init(Context ctx, Object[]... args) {
-		this.ctx = ctx;
-		this.nctx = (NetContext) args[0][0];
-        constraints = new ArrayList<BoolExpr>();
-        elements = new ArrayList<NetworkObject>();
-
-	}
-
-	/**Composes the network linking the configured network objects
-	 *
-	 * @param elements
-	 */
-	public void attach (NetworkObject ... elements){
-	      for(NetworkObject el : elements)
-		  this.elements.add(el);
-	}
-
-	@Override
-	protected void addConstraints(Solver solver) {
-		try {
-			BoolExpr[] constr = new BoolExpr[constraints.size()];
-		    solver.add(constraints.toArray(constr));
-		} catch (Z3Exception e) {
-			e.printStackTrace();
-		}
-	}
-
-	/**
-	 * Specify host to address mapping.
-	 * Handles the case in which we have more than one address for a node
-	 * @param addrmap
-	 */
-	 public void setAddressMappings(ArrayList<Tuple<NetworkObject,ArrayList<DatatypeExpr>>> addrmap){
-		 // Set address mapping for nodes.
-		 for (Tuple<NetworkObject,ArrayList<DatatypeExpr>> entry : addrmap) {
-	    	    NetworkObject node=entry._1;
-	    	    List<DatatypeExpr> addr=entry._2;
-	            Expr a_0 = ctx.mkConst(node+"_address_mapping_a_0",nctx.address);
-	   		    ArrayList<BoolExpr> or_clause = new ArrayList<BoolExpr>();
-
-	   		   // Constraint 1 			addrToNode(foreach ad in addr) = node
-	    	    for (DatatypeExpr ad : addr){
-	              constraints.add(ctx.mkEq(nctx.addrToNode.apply(ad), node.getZ3Node()));
-	              or_clause.add(ctx.mkEq(a_0,ad));
-		        }
-	            BoolExpr[] orClause = new BoolExpr[or_clause.size()];
-
-	            // Constraint 2			nodeHasAddr(node, a_0) == Or(foreach ad in addr (a_0 == ad))
-	        	// Note we need the iff here to make sure that we set nodeHasAddr to false
-		        // for other addresses.
-	            constraints.add(ctx.mkForall(new Expr[]{a_0},
-	                  ctx.mkEq(ctx.mkOr(or_clause.toArray(orClause)), nctx.nodeHasAddr.apply(node.getZ3Node(), a_0)),1,null,null,null,null));
-			}
-	 }
-
-
-
-	/**
-	 * Don't forward packets addressed to node
-	 * @param node
-	 */
-	 public void saneSend(NetworkObject node){
-	     Expr n_0 = ctx.mkConst(node+"_saneSend_n_0", nctx.node);
-	     Expr p_0 = ctx.mkConst(node+"_saneSend_p_0", nctx.packet);
-	     IntExpr t_0 = ctx.mkIntConst(node+"_saneSend_t_0");
-	     	// Constant: node
-	        //Constraint	 send(node, n_0, p, t_0) -> !nodeHasAddr(node, p.dest)
-	        constraints.add(
-	                ctx.mkForall(new Expr[]{n_0, p_0, t_0},
-	                    ctx.mkImplies((BoolExpr)nctx.send.apply(node.getZ3Node(),n_0, p_0, t_0),
-	                    		ctx.mkNot((BoolExpr)nctx.nodeHasAddr.apply( node.getZ3Node(),
-	                    				nctx.pf.get("dest").apply(p_0)))),1,null,null,null,null));
-	    }
-
-	 /**
-	  * Node sends all traffic through gateway
-	  * @param node
-	  * @param gateway
-	  */
-	  public void setGateway (NetworkObject node, NetworkObject gateway){
-	        // SetGateway(self, node, gateway): All packets from node are sent through gateway
-	        Expr n_0 = ctx.mkConst(node+"_gateway_n_0", nctx.node);
-	        Expr p_0 = ctx.mkConst(node+"_gateway_p_0", nctx.packet);
-	        IntExpr t_0 = ctx.mkIntConst(node+"_gateway_t_0");
-
-	        //Constraint	 send(node, n_0, p_0, t_0) -> n_0 = gateway
-	        constraints.add(
-	        		 ctx.mkForall(new Expr[]{n_0, p_0, t_0},
-	        				 ctx.mkImplies(
-	        						 (BoolExpr)nctx.send.apply(node.getZ3Node(), n_0, p_0, t_0),
-	                                           ctx.mkEq(n_0,gateway.getZ3Node())),1,null,null,null,null));
-
-//	        constraints.add(ctx.mkForall(new Expr[]{n_0, p_0, t_0},
-//	            ctx.mkImplies((BoolExpr)nctx.recv.apply(n_0, node.getZ3Node(),  p_0, t_0),
-//	                                            ctx.mkEq(n_0,gateway.getZ3Node())),1,null,null,null,null));
-	  }
-
-	  /**
-	   * Assigns a specific routing table to a network object. Routing entries in the form: address -> node
-	   * @param node
-	   * @param routing_table
-	   */
-       public void routingTable (NetworkObject node,ArrayList<Tuple<DatatypeExpr,NetworkObject>> routing_table){
-	       compositionPolicy(node,routing_table);
-	   }
-
-       /**
-        * Composition policies steer packets between middleboxes.
-        * @param node
-        * @param policy
-        */
-       public void compositionPolicy (NetworkObject node,ArrayList<Tuple<DatatypeExpr,NetworkObject>> policy){
-	        //Policy is of the form predicate -> node
-	    	Expr p_0 = ctx.mkConst(node+"_composition_p_0", nctx.packet);
-	    	Expr n_0 = ctx.mkConst(node+"_composition_n_0", nctx.node);
-	    	Expr t_0 = ctx.mkIntConst(node+"_composition_t_0");
-
-	    	HashMap<String,ArrayList<BoolExpr>> collected = new HashMap<String,ArrayList<BoolExpr>>();
-	        HashMap<String,NetworkObject> node_dict = new HashMap<String,NetworkObject>();
-            BoolExpr predicates;
-            for(int y=0;y<policy.size();y++){
-            	Tuple<DatatypeExpr,NetworkObject> tp = policy.get(y);
-            	if(collected.containsKey(""+tp._2))	 collected.get(""+tp._2).add(nctx.destAddrPredicate(p_0,tp._1));
-            	else{
-            		ArrayList<BoolExpr> alb = new ArrayList<BoolExpr>();
-            		alb.add(nctx.destAddrPredicate(p_0,tp._1));
-            		collected.put(""+tp._2,alb);
-            	}
-            	node_dict.put(""+tp._2, tp._2);
-            }
-
-    	    //Constraint		foreach rtAddr,rtNode in rt( send(node, n_0, p_0, t_0) &&
-    	    //					Or(foreach rtAddr in rt destAddrPredicate(p_0,rtAddr)) -> n_0 == rtNode )
-    	 	for (Map.Entry<String,ArrayList<BoolExpr>> entry : collected.entrySet()) {
-         		BoolExpr[] pred = new BoolExpr[entry.getValue().size()];
-        	    predicates = ctx.mkOr(entry.getValue().toArray(pred));
-
-        	    constraints.add(ctx.mkForall(new Expr[]{n_0, p_0, t_0},
-                    ctx.mkImplies(ctx.mkAnd((BoolExpr)nctx.send.apply(node.getZ3Node(), n_0, p_0, t_0), predicates),
-                                ctx.mkEq(n_0, node_dict.get(entry.getKey()).getZ3Node())),1,null,null,null,null));
-         	}
-        }
-
-	    /**
-	     * Routing entries are in the form: address -> node. Also allows packet to be sent to another box for further processing
-	     * @param node
-	     * @param routing_table
-	     * @param shunt_node
-	     */
-	   public void routingTableShunt (NetworkObject node,ArrayList<Tuple<DatatypeExpr,NetworkObject>> routing_table,NetworkObject shunt_node){
-	    	   compositionPolicyShunt(node,routing_table,shunt_node);
-	   	    }
-
-	    /**
-	     * Composition policies steer packets between middleboxes.Policy is in the form: predicate -> node
-	     * @param node
-	     * @param routing_table
-	     * @param shunt_node
-	     */
-	   public void compositionPolicyShunt (NetworkObject node,ArrayList<Tuple<DatatypeExpr,NetworkObject>> routing_table,NetworkObject shunt_node){
-		    Expr p_0 = ctx.mkConst(node+"_composition_p_0", nctx.packet);
-	    	Expr n_0 = ctx.mkConst(node+"_composition_n_0", nctx.node);
-	    	Expr t_0 = ctx.mkIntConst(node+"_composition_t_0");
-
-	    	HashMap<String,ArrayList<BoolExpr>> collected = new HashMap<String,ArrayList<BoolExpr>>();
-	        HashMap<String,NetworkObject> node_dict = new HashMap<String,NetworkObject>();
-	        BoolExpr predicates;
-            for(int y=0;y<routing_table.size();y++){
-            	Tuple<DatatypeExpr,NetworkObject> tp = routing_table.get(y);
-            	if(collected.containsKey(""+tp._2))	 collected.get(""+tp._2).add(nctx.destAddrPredicate(p_0,tp._1));
-            	else{
-            		ArrayList<BoolExpr> alb = new ArrayList<BoolExpr>();
-            		alb.add(nctx.destAddrPredicate(p_0,tp._1));
-            		collected.put(""+tp._2,alb);
-            	}
-            	node_dict.put(""+tp._2, tp._2);
-            }
-
-            //Constraint		foreach rtAddr,rtNode in rt( send(node, n_0, p_0, t_0) &&
-            //					Or(foreach rtAddr in rt destAddrPredicate(p_0,rtAddr)) -> n_0 == rtNode )
-         	for (Map.Entry<String,ArrayList<BoolExpr>> entry : collected.entrySet()) {
-        	    BoolExpr[] pred = new BoolExpr[entry.getValue().size()];
-        	    predicates = ctx.mkOr(entry.getValue().toArray(pred));
-
-        	    constraints.add(ctx.mkForall(new Expr[]{n_0, p_0, t_0},
-                    ctx.mkImplies(ctx.mkAnd((BoolExpr)nctx.send.apply(node.getZ3Node(), n_0, p_0, t_0), predicates),
-                               ctx.mkOr(ctx.mkEq(n_0, node_dict.get(entry.getKey()).getZ3Node()),ctx.mkEq(n_0, shunt_node.getZ3Node()))),1,null,null,null,null));
-         	}
-
-	    }
-
-//	    public void SimpleIsolation (NetworkObject node, ArrayList<DatatypeExpr> addresses){
-//	       Expr p = ctx.mkConst(node+"_s_p", nctx.packet);
-//	       Expr n = ctx.mkConst(node+"_s_n", nctx.node);
-//	       IntExpr t = ctx.mkInt(node+"_s_t");
-//
-//	       BoolExpr[] a_pred= new BoolExpr[addresses.size()];
-//	        for(int y=0;y<addresses.size();y++){
-//	        	DatatypeExpr de = addresses.get(y);
-//	        	a_pred[y] = ctx.mkOr(ctx.mkEq(nctx.pf.get("src").apply(p), de),ctx.mkEq(nctx.pf.get("dest").apply(p), de));
-//	        }
-//
-//	        constraints.add(
-//	                ctx.mkForall(new Expr[]{p, n, t},
-//	                  ctx.mkImplies((BoolExpr)nctx.recv.apply(n, node.getZ3Node(), p, t),
-//	                            ctx.mkOr(a_pred)),1,null,null,null,null));
-//	        constraints.add(
-//	                ctx.mkForall(new Expr[]{p, n, t},
-//	                  ctx.mkImplies((BoolExpr)nctx.send.apply(node.getZ3Node(), n, p, t),
-//	                            ctx.mkOr(a_pred)),1,null,null,null,null));
-//	    }
-
-
-	   /**
-	    * Set isolation constraints on a node.
-	    * Doesn't need to be set but useful when interfering policies are in play.
-	    * @param node
-	    * @param adjacencies
-	    *
-	    */
-	   public void SetIsolationConstraint ( NetworkObject node,  ArrayList<NetworkObject> adjacencies){
-
-		   	Expr n_0 = ctx.mkConst(node+"_isolation_n_0", nctx.node);
-	        Expr p_0 = ctx.mkConst(node+"_isolation_p_0", nctx.packet);
-	        IntExpr t_0 = ctx.mkInt(node+"_isolation_t_0");
-
-	        BoolExpr[] adj = new BoolExpr[adjacencies.size()];
-	        for(int y=0;y<adjacencies.size();y++){
-	        	NetworkObject no = adjacencies.get(y);
-	        	adj[y] =  ctx.mkEq(n_0,no.getZ3Node());
-	        }
-	        BoolExpr clause = ctx.mkOr(adj);
-
-	        constraints.add(ctx.mkForall(new Expr[]{n_0, p_0, t_0},
-	            ctx.mkImplies((BoolExpr)nctx.send.apply(node.getZ3Node(), n_0, p_0, t_0),
-	                                    clause),1,null,null,null,null));
-	        constraints.add(ctx.mkForall(new Expr[]{n_0, p_0, t_0},
-	            ctx.mkImplies((BoolExpr)nctx.recv.apply(n_0, node.getZ3Node(), p_0, t_0),
-	                                    clause),1,null,null,null,null));
-	       }
-
-	  /**
-	   * Return all currently attached endhosts
-	   * @return NetworkObject
-	   */
-	   public List<String> EndHosts(){
-		   List<String> att_nos = new ArrayList<String>();
-		   for(NetworkObject el :elements){
-			   if(el.isEndHost){
-				   System.out.println("el: "+el);
-			   		att_nos.add(el.getZ3Node().toString());
-		   		}
-		   	}
-	        return att_nos;
-	   }
-}