diff options
Diffstat (limited to 'verigraph/service/src/mcnet/netobjs/PolitoNat.java')
| -rw-r--r-- | verigraph/service/src/mcnet/netobjs/PolitoNat.java | 176 |
1 files changed, 0 insertions, 176 deletions
diff --git a/verigraph/service/src/mcnet/netobjs/PolitoNat.java b/verigraph/service/src/mcnet/netobjs/PolitoNat.java deleted file mode 100644 index 6d8a36d..0000000 --- a/verigraph/service/src/mcnet/netobjs/PolitoNat.java +++ /dev/null @@ -1,176 +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.FuncDecl; -import com.microsoft.z3.IntExpr; -import com.microsoft.z3.Solver; - -import mcnet.components.NetContext; -import mcnet.components.Network; -import mcnet.components.NetworkObject; -/** - * NAT Model object - * - */ -public class PolitoNat extends NetworkObject{ - List<BoolExpr> constraints; - Context ctx; - DatatypeExpr nat; - List<DatatypeExpr> private_addresses; - List<NetworkObject> private_node; - Network net; - NetContext nctx; - FuncDecl private_addr_func ; - - public PolitoNat(Context ctx, Object[]... args) { - super(ctx, args); - } - - @Override - protected void init(Context ctx, Object[]... args) { - this.ctx = ctx; - isEndHost=false; - constraints = new ArrayList<BoolExpr>(); - z3Node = ((NetworkObject)args[0][0]).getZ3Node(); - nat = z3Node; - net = (Network)args[0][1]; - nctx = (NetContext)args[0][2]; - private_addresses = new ArrayList<DatatypeExpr>(); - private_node = new ArrayList<NetworkObject>(); - net.saneSend(this); - } - - @Override - public DatatypeExpr getZ3Node() { - return nat; - } - - @Override - protected void addConstraints(Solver solver) { - BoolExpr[] constr = new BoolExpr[constraints.size()]; - solver.add(constraints.toArray(constr)); - } - - /* - private void addPrivateAdd(List<DatatypeExpr> address){ - private_addresses.addAll(address); - } - */ - - public List<DatatypeExpr> getPrivateAddress(){ - return private_addresses; - } - - public void natModel(DatatypeExpr natIp){ - Expr x = ctx.mkConst("x", nctx.node); - Expr y = ctx.mkConst("y", nctx.node); - Expr z = ctx.mkConst("z", nctx.node); - - Expr p_0 = ctx.mkConst("p_0", nctx.packet); - Expr p_1 = ctx.mkConst("p_1", nctx.packet); - Expr p_2 = ctx.mkConst("p_2", nctx.packet); - - IntExpr t_0 = ctx.mkIntConst("t_0"); - IntExpr t_1 = ctx.mkIntConst("t_1"); - IntExpr t_2 = ctx.mkIntConst("t_2"); - -// private_addr_func = ctx.mkFuncDecl("private_addr_func", nctx.address, ctx.mkBoolSort()); - private_addr_func = ctx.mkFuncDecl(nat + "_nat_func", nctx.address, ctx.mkBoolSort()); - - //Constraint1 -// "send(nat, x, p_0, t_0) && !private_addr_func(p_0.dest) -> -// p_0.src == ip_politoNat && -// (exist y, p_1,t_1 : -// (recv(y, nat, p_1, t_1) && t_1 < t_0 && -// private_addr_func(p1.src) && -// p_1.origin == p_0.origin && -// same for p_1.<dest,orig_body,body,seq,proto,emailFrom,url,options> == p_0.<...>) " - constraints.add( ctx.mkForall(new Expr[]{t_0, p_0, x}, - ctx.mkImplies( - ctx.mkAnd((BoolExpr)nctx.send.apply(nat, x, p_0, t_0), - ctx.mkNot((BoolExpr)private_addr_func.apply(nctx.pf.get("dest").apply(p_0)))), - ctx.mkAnd( - ctx.mkEq(nctx.pf.get("src").apply(p_0),natIp), - ctx.mkExists(new Expr[]{y, p_1, t_1}, - ctx.mkAnd( - (BoolExpr)nctx.recv.apply(y, nat, p_1, t_1), - ctx.mkLt(t_1 , t_0), - (BoolExpr)private_addr_func.apply(nctx.pf.get("src").apply(p_1)), - ctx.mkEq(nctx.pf.get("origin").apply(p_1),nctx.pf.get("origin").apply(p_0)), - ctx.mkEq(nctx.pf.get("dest").apply(p_1),nctx.pf.get("dest").apply(p_0)), - ctx.mkEq(nctx.pf.get("orig_body").apply(p_1),nctx.pf.get("orig_body").apply(p_0)), - ctx.mkEq(nctx.pf.get("body").apply(p_1),nctx.pf.get("body").apply(p_0)), - ctx.mkEq(nctx.pf.get("seq").apply(p_1),nctx.pf.get("seq").apply(p_0)), - ctx.mkEq(nctx.pf.get("proto").apply(p_1),nctx.pf.get("proto").apply(p_0)), - ctx.mkEq(nctx.pf.get("emailFrom").apply(p_1),nctx.pf.get("emailFrom").apply(p_0)), - ctx.mkEq(nctx.pf.get("url").apply(p_1),nctx.pf.get("url").apply(p_0)), - ctx.mkEq(nctx.pf.get("options").apply(p_1),nctx.pf.get("options").apply(p_0))),1,null,null,null,null))),1,null,null,null,null)); - - //Constraint2 -// send(nat, x, p_0, t_0) && private_addr_func(p_0.dest) -> -// !private_addr_func(p_0.src) && -// (exist y, p_1,t_1 : -// (recv(y, nat, p_1, t_1) && t_1 < t_0 && -// !private_addr_func(p1.src) && -// p_1.dest == ip_politoNat && -// p_1.origin == p_0.origin && -// same for p_1.<src,orig_body,body,seq,proto,emailFrom,url,options> == p_0.<...>) - constraints.add( ctx.mkForall(new Expr[]{x, p_0, t_0}, - ctx.mkImplies( - ctx.mkAnd((BoolExpr)nctx.send.apply(nat, x, p_0, t_0), - (BoolExpr)private_addr_func.apply(nctx.pf.get("dest").apply(p_0))), - ctx.mkAnd( - ctx.mkNot((BoolExpr)private_addr_func.apply(nctx.pf.get("src").apply(p_0))), - ctx.mkExists(new Expr[]{y, p_1, t_1}, - ctx.mkAnd( - ctx.mkLt(t_1 , t_0), - (BoolExpr)nctx.recv.apply(y, nat, p_1, t_1), - ctx.mkNot((BoolExpr)private_addr_func.apply(nctx.pf.get("src").apply(p_1))), - ctx.mkEq(nctx.pf.get("dest").apply(p_1),natIp), - ctx.mkEq(nctx.pf.get("src").apply(p_1),nctx.pf.get("src").apply(p_0)), - ctx.mkEq(nctx.pf.get("origin").apply(p_0),nctx.pf.get("origin").apply(p_1)), - ctx.mkEq(nctx.pf.get("orig_body").apply(p_1),nctx.pf.get("orig_body").apply(p_0)), - ctx.mkEq(nctx.pf.get("body").apply(p_1),nctx.pf.get("body").apply(p_0)), - ctx.mkEq(nctx.pf.get("seq").apply(p_1),nctx.pf.get("seq").apply(p_0)), - ctx.mkEq(nctx.pf.get("proto").apply(p_1),nctx.pf.get("proto").apply(p_0)), - ctx.mkEq(nctx.pf.get("emailFrom").apply(p_1),nctx.pf.get("emailFrom").apply(p_0)), - ctx.mkEq(nctx.pf.get("url").apply(p_1),nctx.pf.get("url").apply(p_0)), - ctx.mkEq(nctx.pf.get("options").apply(p_1),nctx.pf.get("options").apply(p_0)), - ctx.mkExists(new Expr[]{z, p_2, t_2}, - ctx.mkAnd( - ctx.mkLt(t_2 , t_1), - (BoolExpr)nctx.recv.apply(z, nat, p_2, t_2), - (BoolExpr)private_addr_func.apply(nctx.pf.get("src").apply(p_2)), - ctx.mkEq(nctx.pf.get("src").apply(p_1),nctx.pf.get("dest").apply(p_2)), - ctx.mkEq(nctx.pf.get("src").apply(p_0),nctx.pf.get("dest").apply(p_2)), - ctx.mkEq(nctx.pf.get("src").apply(p_2),nctx.pf.get("dest").apply(p_0))),1,null,null,null,null)),1,null,null,null,null))),1,null,null,null,null)); - } - - public void setInternalAddress(ArrayList<DatatypeExpr> internalAddress){ - List<BoolExpr> constr = new ArrayList<BoolExpr>(); - Expr n_0 = ctx.mkConst("nat_node", nctx.address); - - for(DatatypeExpr n : internalAddress){ - constr.add(ctx.mkEq(n_0,n)); - } - BoolExpr[] constrs = new BoolExpr[constr.size()]; - //Constraint private_addr_func(n_0) == or(n_0==n foreach internal address) - constraints.add(ctx.mkForall(new Expr[]{n_0}, ctx.mkEq(private_addr_func.apply(n_0),ctx.mkOr(constr.toArray(constrs))),1,null,null,null,null)); - } -}
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