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Diffstat (limited to 'verigraph/service/src/mcnet/netobjs/EndHost.java')
| -rw-r--r-- | verigraph/service/src/mcnet/netobjs/EndHost.java | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/verigraph/service/src/mcnet/netobjs/EndHost.java b/verigraph/service/src/mcnet/netobjs/EndHost.java deleted file mode 100644 index 99cf732..0000000 --- a/verigraph/service/src/mcnet/netobjs/EndHost.java +++ /dev/null @@ -1,100 +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.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 mcnet.components.NetContext; -import mcnet.components.Network; -import mcnet.components.NetworkObject; -/** - * End host network objects - * - */ -public class EndHost extends NetworkObject{ - - List<BoolExpr> constraints; - Context ctx; - DatatypeExpr node; - Network net; - NetContext nctx; - - public EndHost(Context ctx, Object[]... args) { - super(ctx, args); - } - - @Override - protected void init(Context ctx, Object[]... args) { - this.ctx = ctx; - isEndHost=true; - constraints = new ArrayList<BoolExpr>(); - z3Node = ((NetworkObject)args[0][0]).getZ3Node(); - node = z3Node; - net = (Network)args[0][1]; - nctx = (NetContext)args[0][2]; - endHostRules(); - } - - @Override - public DatatypeExpr getZ3Node() { - return node; - } - - @Override - protected void addConstraints(Solver solver) { - BoolExpr[] constr = new BoolExpr[constraints.size()]; - solver.add(constraints.toArray(constr)); - } - - public void endHostRules (){ - Expr n_0 = ctx.mkConst("eh_"+node+"_n_0", nctx.node); - IntExpr t_0 = ctx.mkIntConst("eh_"+node+"_t_0"); - Expr p_0 = ctx.mkConst("eh_"+node+"_p_0", nctx.packet); - - //Constraint1 send(node, n_0, p, t_0) -> nodeHasAddr(node,p.src) - constraints.add( - ctx.mkForall(new Expr[]{n_0, p_0, t_0}, - ctx.mkImplies( - (BoolExpr)nctx.send.apply( new Expr[]{ node, n_0, p_0, t_0}), - (BoolExpr)nctx.nodeHasAddr.apply(new Expr[]{node, nctx.pf.get("src").apply(p_0)})),1,null,null,null,null)); - //Constraint2 send(node, n_0, p, t_0) -> p.origin == node - constraints.add( - ctx.mkForall(new Expr[]{n_0, p_0, t_0}, - ctx.mkImplies( - (BoolExpr)nctx.send.apply( new Expr[]{ node, n_0, p_0, t_0}), - ctx.mkEq(nctx.pf.get("origin").apply(p_0),node)),1,null,null,null,null)); - //Constraint3 send(node, n_0, p, t_0) -> p.orig_body == p.body - constraints.add( - ctx.mkForall(new Expr[]{n_0, p_0, t_0}, - ctx.mkImplies( - (BoolExpr)nctx.send.apply(new Expr[]{ node, n_0, p_0, t_0}), - ctx.mkEq(nctx.pf.get("orig_body").apply(p_0),nctx.pf.get("body").apply(p_0))),1,null,null,null,null)); - //Constraint4 recv(n_0, node, p, t_0) -> nodeHasAddr(node,p.dest) - constraints.add( - ctx.mkForall(new Expr[]{n_0, p_0, t_0}, - ctx.mkImplies( - (BoolExpr)nctx.recv.apply( new Expr[]{ n_0, node, p_0, t_0}), - (BoolExpr)nctx.nodeHasAddr.apply(new Expr[]{node, nctx.pf.get("dest").apply(p_0)})),1,null,null,null,null)); - -// Just a try: here we state that an endhost is not able to issue a HTTP response traffic -// See PolitoCache.py model for constants definition (2 means HTTP_RESPONSE, 1 means HTTP_REQUEST) -// constraints.add(ctx.mkForall(new Expr[]{n_0, p_0, t_0}, -// ctx.mkImplies((BoolExpr)nctx.send.apply(node, n_0, p_0, t_0), -// ctx.mkEq(nctx.pf.get("proto").apply(p_0), ctx.mkInt(1))),1,null,null,null,null)); - } -}
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