diff options
Diffstat (limited to 'verigraph/src/it/polito/verigraph/mcnet/netobjs/PolitoMailServer.java')
| -rw-r--r-- | verigraph/src/it/polito/verigraph/mcnet/netobjs/PolitoMailServer.java | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/verigraph/src/it/polito/verigraph/mcnet/netobjs/PolitoMailServer.java b/verigraph/src/it/polito/verigraph/mcnet/netobjs/PolitoMailServer.java new file mode 100644 index 0000000..4daaaff --- /dev/null +++ b/verigraph/src/it/polito/verigraph/mcnet/netobjs/PolitoMailServer.java @@ -0,0 +1,116 @@ +/******************************************************************************* + * 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.FuncDecl; +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; +/** Mail server objects + * + * + */ +public class PolitoMailServer extends NetworkObject{ + + List<BoolExpr> constraints; + Context ctx; + DatatypeExpr politoMailServer; + Network net; + NetContext nctx; + FuncDecl isInBlacklist; + + public PolitoMailServer(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(); + politoMailServer = z3Node; + net = (Network)args[0][1]; + nctx = (NetContext)args[0][2]; + mailServerRules(); + net.saneSend(this); + } + + @Override + public DatatypeExpr getZ3Node() { + return politoMailServer; + } + + @Override + protected void addConstraints(Solver solver) { + BoolExpr[] constr = new BoolExpr[constraints.size()]; + solver.add(constraints.toArray(constr)); + } + + private void mailServerRules (){ + Expr n_0 = ctx.mkConst(politoMailServer+"_n_0", nctx.node); + Expr p_0 = ctx.mkConst(politoMailServer+"_p_0", nctx.packet); + Expr p_1 = ctx.mkConst(politoMailServer+"_p_1", nctx.packet); + IntExpr t_0 = ctx.mkIntConst(politoMailServer+"_t_0"); + IntExpr t_1 = ctx.mkIntConst(politoMailServer+"_t_1"); + + //Constraint1 send(politoMailServer, n_0, p, t_0) -> nodeHasAddr(politoMailServer,p.src) + constraints.add( ctx.mkForall(new Expr[]{n_0, p_0, t_0}, + ctx.mkImplies((BoolExpr)nctx.send.apply(politoMailServer, n_0, p_0, t_0), + (BoolExpr)nctx.nodeHasAddr.apply(politoMailServer,nctx.pf.get("src").apply(p_0))),1,null,null,null,null)); + + //Constraint2 send(politoMailServer, n_0, p, t_0) -> p.origin == politoMailServer + constraints.add( ctx.mkForall(new Expr[]{n_0, p_0, t_0}, + ctx.mkImplies((BoolExpr)nctx.send.apply(politoMailServer, n_0, p_0, t_0), + ctx.mkEq(nctx.pf.get("origin").apply(p_0),politoMailServer)),1,null,null,null,null)); + + //Constraint3 send(politoMailServer, 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(politoMailServer, 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, politoMailServer, p, t_0) -> nodeHasAddr(politoMailServer,p.dest) + constraints.add( ctx.mkForall(new Expr[]{n_0, p_0, t_0}, + ctx.mkImplies((BoolExpr)nctx.recv.apply(n_0,politoMailServer, p_0, t_0), + (BoolExpr)nctx.nodeHasAddr.apply(politoMailServer,nctx.pf.get("dest").apply(p_0))),1,null,null,null,null)); + + //Constraint5 send(politoMailServer, n_0, p, t_0) -> p.proto == POP3_RESP && p.emailFrom == 1 + constraints.add( ctx.mkForall(new Expr[]{n_0, p_0, t_0}, + ctx.mkImplies((BoolExpr)nctx.send.apply(politoMailServer, n_0, p_0, t_0), + ctx.mkAnd(ctx.mkEq(nctx.pf.get("proto").apply(p_0), ctx.mkInt(nctx.POP3_RESPONSE)), + ctx.mkEq(nctx.pf.get("emailFrom").apply(p_0), ctx.mkInt(1)))),1,null,null,null,null)); + + //Constraint6 send(politoMailServer, n_0, p, t_0) -> + // (exist p_1, t_1 : (t_1 < t_0 && recv(n_0, politoMailServer, p_1, t_1) && + // p_0.proto == POP3_RESP && p_1.proto == POP3_REQ && p_0.dest == p_1.src ) + + constraints.add( ctx.mkForall(new Expr[]{n_0, p_0, t_0}, + ctx.mkImplies((BoolExpr)nctx.send.apply(politoMailServer, n_0, p_0, t_0), + ctx.mkExists(new Expr[]{p_1, t_1}, + ctx.mkAnd(ctx.mkLt(t_1, t_0), + (BoolExpr)nctx.recv.apply(n_0, politoMailServer, p_1, t_1), + ctx.mkEq(nctx.pf.get("proto").apply(p_0), ctx.mkInt(nctx.POP3_RESPONSE)), + ctx.mkEq(nctx.pf.get("proto").apply(p_1), ctx.mkInt(nctx.POP3_REQUEST)), + ctx.mkEq(nctx.pf.get("dest").apply(p_0), nctx.pf.get("src").apply(p_1))),1,null,null,null,null)),1,null,null,null,null)); + + // constraints.add( ctx.mkForall(new Expr[]{n_0, p_0, t_0}, + // ctx.mkImplies((BoolExpr)nctx.send.apply(politoMailServer, n_0, p_0, t_0), + // ctx.mkEq(nctx.pf.get("emailFrom").apply(p_0),ctx.mkInt(2))),1,null,null,null,null)); + } +}
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