xorp

policy_filter.hh

00001 // -*- c-basic-offset: 4; tab-width: 8; indent-tabs-mode: t -*-
00002 // vim:set sts=4 ts=8:
00003 
00004 // Copyright (c) 2001-2011 XORP, Inc and Others
00005 //
00006 // This program is free software; you can redistribute it and/or modify
00007 // it under the terms of the GNU General Public License, Version 2, June
00008 // 1991 as published by the Free Software Foundation. Redistribution
00009 // and/or modification of this program under the terms of any other
00010 // version of the GNU General Public License is not permitted.
00011 // 
00012 // This program is distributed in the hope that it will be useful, but
00013 // WITHOUT ANY WARRANTY; without even the implied warranty of
00014 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For more details,
00015 // see the GNU General Public License, Version 2, a copy of which can be
00016 // found in the XORP LICENSE.gpl file.
00017 // 
00018 // XORP Inc, 2953 Bunker Hill Lane, Suite 204, Santa Clara, CA 95054, USA;
00019 // http://xorp.net
00020 
00021 // $XORP: xorp/policy/backend/policy_filter.hh,v 1.13 2008/10/02 21:58:04 bms Exp $
00022 
00023 #ifndef __POLICY_BACKEND_POLICY_FILTER_HH__
00024 #define __POLICY_BACKEND_POLICY_FILTER_HH__
00025 
00026 
00027 
00028 
00029 
00030 
00031 #include "policy/common/varrw.hh"
00032 #include "policy/common/policy_exception.hh"
00033 #include "policy_instr.hh"
00034 #include "set_manager.hh"
00035 #include "filter_base.hh"
00036 #include "iv_exec.hh"
00037 #include "libxorp/ref_ptr.hh"
00038 
00044 class PolicyFilter :
00045     public NONCOPYABLE,
00046     public FilterBase
00047 {
00048 public:
00052     class ConfError : public PolicyException {
00053     public:
00054         ConfError(const char* file, size_t line, const string& init_why = "")
00055             : PolicyException("ConfError", file, line, init_why) {}   
00056     };
00057 
00058     PolicyFilter();
00059     ~PolicyFilter();
00060     
00066     void configure(const string& str);
00067 
00074     void reset();
00075 
00083     bool acceptRoute(VarRW& varrw);
00084 
00085 #ifndef XORP_DISABLE_PROFILE
00086     void set_profiler_exec(PolicyProfiler* profiler);
00087 #endif
00088 
00089 private:
00090     vector<PolicyInstr*>*   _policies;
00091     SetManager          _sman;
00092     IvExec          _exec;
00093 #ifndef XORP_DISABLE_PROFILE
00094     PolicyProfiler*     _profiler_exec;
00095 #endif
00096     SUBR*           _subr;
00097 };
00098 
00099 typedef ref_ptr<PolicyFilter> RefPf;
00100 
00101 #endif // __POLICY_BACKEND_POLICY_FILTER_HH__
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