diff options
Diffstat (limited to 'verigraph/src/it/polito/verigraph/mcnet/netobjs/PolitoEndHost.java')
| -rw-r--r-- | verigraph/src/it/polito/verigraph/mcnet/netobjs/PolitoEndHost.java | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/verigraph/src/it/polito/verigraph/mcnet/netobjs/PolitoEndHost.java b/verigraph/src/it/polito/verigraph/mcnet/netobjs/PolitoEndHost.java new file mode 100644 index 0000000..61f23af --- /dev/null +++ b/verigraph/src/it/polito/verigraph/mcnet/netobjs/PolitoEndHost.java @@ -0,0 +1,100 @@ +/******************************************************************************* + * 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 it.polito.verigraph.mcnet.netobjs; + +import java.util.ArrayList; +import java.util.List; +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 it.polito.verigraph.mcnet.components.NetContext; +import it.polito.verigraph.mcnet.components.Network; +import it.polito.verigraph.mcnet.components.NetworkObject; +import it.polito.verigraph.mcnet.netobjs.PacketModel; + +public class PolitoEndHost extends NetworkObject { + + List<BoolExpr> constraints = new ArrayList<BoolExpr>(); + Context ctx; + DatatypeExpr politoEndHost; + Network net; + NetContext nctx; + + public PolitoEndHost(Context ctx, Object[]... args) { + super(ctx, args); + } + + @Override + public DatatypeExpr getZ3Node() { + return politoEndHost; + } + + @Override + protected void init(Context ctx, Object[]... args) { + this.ctx = ctx; + this.isEndHost = true; + this.politoEndHost = this.z3Node = ((NetworkObject)args[0][0]).getZ3Node(); + this.net = (Network)args[0][1]; + this.nctx = (NetContext)args[0][2]; + } + + @Override + protected void addConstraints(Solver solver) { + BoolExpr[] constr = new BoolExpr[constraints.size()]; + solver.add(constraints.toArray(constr)); + } + + /* + * Fields that can be configured -> "dest","body","seq","proto","emailFrom","url","options" + */ + public void installEndHost (PacketModel packet){ + //System.out.println("Installing PolitoEndHost..."); + Expr n_0 = ctx.mkConst("PolitoEndHost_"+politoEndHost+"_n_0", nctx.node); + Expr p_0 = ctx.mkConst("PolitoEndHost_"+politoEndHost+"_p_0", nctx.packet); + IntExpr t_0 = ctx.mkIntConst("PolitoEndHost_"+politoEndHost+"_t_0"); + BoolExpr predicatesOnPktFields = ctx.mkTrue(); + + if(packet.getIp_dest() != null) + predicatesOnPktFields = ctx.mkAnd(predicatesOnPktFields, ctx.mkEq(nctx.pf.get("dest").apply(p_0), packet.getIp_dest())); + if(packet.getBody() != null) + predicatesOnPktFields = ctx.mkAnd(predicatesOnPktFields, ctx.mkEq(nctx.pf.get("body").apply(p_0), ctx.mkInt(packet.getBody()))); + if(packet.getEmailFrom() != null) + predicatesOnPktFields = ctx.mkAnd(predicatesOnPktFields, ctx.mkEq(nctx.pf.get("emailFrom").apply(p_0), ctx.mkInt(packet.getEmailFrom()))); + if(packet.getOptions() != null) + predicatesOnPktFields = ctx.mkAnd(predicatesOnPktFields, ctx.mkEq(nctx.pf.get("options").apply(p_0), ctx.mkInt(packet.getOptions()))); + if(packet.getProto() != null) + predicatesOnPktFields = ctx.mkAnd(predicatesOnPktFields, ctx.mkEq(nctx.pf.get("proto").apply(p_0), ctx.mkInt(packet.getProto()))); + if(packet.getSeq() != null) + predicatesOnPktFields = ctx.mkAnd(predicatesOnPktFields, ctx.mkEq(nctx.pf.get("seq").apply(p_0), ctx.mkInt(packet.getSeq()))); + if(packet.getUrl() != null) + predicatesOnPktFields = ctx.mkAnd(predicatesOnPktFields, ctx.mkEq(nctx.pf.get("url").apply(p_0), ctx.mkInt(packet.getUrl()))); + + //Constraint1 send(politoWebClient, n_0, p, t_0) -> p.origin == politoWebClient && p.orig_body == p.body && nodeHasAddr(politoWebClient,p.src) + constraints.add( ctx.mkForall(new Expr[]{n_0, p_0, t_0}, + ctx.mkImplies((BoolExpr)nctx.send.apply(politoEndHost, n_0, p_0, t_0), + ctx.mkAnd(predicatesOnPktFields, + ctx.mkEq(nctx.pf.get("orig_body").apply(p_0),nctx.pf.get("body").apply(p_0)), + ctx.mkEq(nctx.pf.get("origin").apply(p_0),politoEndHost), + (BoolExpr)nctx.nodeHasAddr.apply(politoEndHost,nctx.pf.get("src").apply(p_0)))),1,null,null,null,null)); + + //Constraint2 recv(n_0, politoWebClient, p, t_0) -> nodeHasAddr(politoWebClient,p.dest) + constraints.add( ctx.mkForall(new Expr[]{n_0, p_0, t_0}, + ctx.mkImplies((BoolExpr)nctx.recv.apply(n_0,politoEndHost, p_0, t_0), + (BoolExpr)nctx.nodeHasAddr.apply(politoEndHost,nctx.pf.get("dest").apply(p_0))),1,null,null,null,null)); + + //System.out.println("Done."); + + + return; + } + +} |