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-rw-r--r--verigraph/service/src/mcnet/netobjs/PolitoMailServer.java117
1 files changed, 117 insertions, 0 deletions
diff --git a/verigraph/service/src/mcnet/netobjs/PolitoMailServer.java b/verigraph/service/src/mcnet/netobjs/PolitoMailServer.java
new file mode 100644
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+++ b/verigraph/service/src/mcnet/netobjs/PolitoMailServer.java
@@ -0,0 +1,117 @@
+/*******************************************************************************
+ * 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;
+/** 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));
+ }
+} \ No newline at end of file