/*
  *  Load, verify and execute ClamAV bytecode.
  *
  *  Copyright (C) 2009 Sourcefire, Inc.
  *
  *  Authors: Török Edvin
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License version 2 as
  *  published by the Free Software Foundation.
  *
  *  This program is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  *  MA 02110-1301, USA.
  */
 #ifndef BYTECODE_H
 #define BYTECODE_H
 #include <stdio.h>
 #include "clambc.h"

 struct cli_dbio;
 struct cli_bc_ctx;
 struct cli_bc_func;

 struct cli_bc_value;

 struct cli_bc_inst;

 struct cli_bc_type;

 struct cli_bc_engine;
 struct bitset_tag;

 enum bc_state {
     bc_loaded,
     bc_jit,
     bc_interp
 };
 

 struct cli_bc {
   unsigned verifier;
   char *sigmaker;
   unsigned id;
   struct bytecode_metadata metadata;

   unsigned num_types;

   unsigned num_func;
   struct cli_bc_func *funcs;

   struct cli_bc_type *types;

   enum bc_state state;

   uint16_t start_tid;

   struct bitset_tag *uses_apis;
 };
 
 struct cli_all_bc {
     struct cli_bc *all_bcs;
     unsigned count;
     struct cli_bcengine *engine;

 };
 

 struct cli_bc_ctx *cli_bytecode_context_alloc(void);

 int cli_bytecode_context_setfuncid(struct cli_bc_ctx *ctx, const struct cli_bc *bc, unsigned funcid);

 int cli_bytecode_context_setparam_int(struct cli_bc_ctx *ctx, unsigned i, uint64_t c);
 int cli_bytecode_context_setparam_ptr(struct cli_bc_ctx *ctx, unsigned i, void *data, unsigned datalen);
 int cli_bytecode_context_clear(struct cli_bc_ctx *ctx);

 uint64_t cli_bytecode_context_getresult_int(struct cli_bc_ctx *ctx);

 void cli_bytecode_context_destroy(struct cli_bc_ctx *ctx);

 extern int have_clamjit;

 int cli_bytecode_init(struct cli_all_bc *allbc);

 int cli_bytecode_load(struct cli_bc *bc, FILE *f, struct cli_dbio *dbio);

 int cli_bytecode_prepare(struct cli_all_bc *allbc);

 int cli_bytecode_run(const struct cli_all_bc *bcs, const struct cli_bc *bc, struct cli_bc_ctx *ctx);

 void cli_bytecode_destroy(struct cli_bc *bc);

 int cli_bytecode_done(struct cli_all_bc *allbc);

 
 #endif