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epan.c

/* epan.c
 *
 * $Id: epan.c 23679 2007-11-30 09:22:01Z kukosa $
 *
 * Wireshark Protocol Analyzer Library
 *
 * Copyright (c) 2001 by Gerald Combs <gerald@wireshark.org>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#if (defined(HAVE_LIBGCRYPT) || defined(HAVE_LIBGNUTLS)) && defined(_WIN32)
#include <winposixtype.h>
#endif

#ifdef HAVE_LIBGCRYPT
#include <gcrypt.h>
#endif /* HAVE_LIBGCRYPT */

#ifdef HAVE_LIBGNUTLS
#include <gnutls/gnutls.h>
#endif /* HAVE_LIBGNUTLS */


#include <glib.h>
#include "epan.h"
#include "epan_dissect.h"
#include "report_err.h"

#include "conversation.h"
#include "circuit.h"
#include "except.h"
#include "packet.h"
#include "prefs.h"
#include "column-utils.h"
#include "tap.h"
#include "addr_resolv.h"
#include "oids.h"
#include "emem.h"
#include "expert.h"

#ifdef HAVE_LUA_5_1
      int wslua_init(void*);
#endif

gchar*
epan_get_version(void) {
  return VERSION;
}

void
epan_init(void (*register_all_protocols)(register_cb cb, gpointer client_data),
        void (*register_all_handoffs)(register_cb cb, gpointer client_data),
        register_cb cb,
        gpointer client_data,
        void (*report_failure)(const char *, va_list),
        void (*report_open_failure)(const char *, int, gboolean),
        void (*report_read_failure)(const char *, int))
{
      init_report_err(report_failure, report_open_failure, report_read_failure);

      /* initialize memory allocation subsystem */
      ep_init_chunk();
      se_init_chunk();

      /* initialize the GUID to name mapping table */
      guids_init();

      except_init();
#ifdef HAVE_LIBGNUTLS
      gnutls_global_init();
#elif defined(HAVE_LIBGCRYPT)
      gcry_check_version(NULL);
#endif
      tvbuff_init();
      tap_init();
      prefs_init();
      proto_init(register_all_protocols, register_all_handoffs, cb, client_data);
      packet_init();
      dfilter_init();
      final_registration_all_protocols();
      host_name_lookup_init();
      expert_init();
      oids_init();
#ifdef HAVE_LUA_5_1
      wslua_init(NULL);
#endif

}

void
epan_cleanup(void)
{
      expert_cleanup();
      dfilter_cleanup();
      proto_cleanup();
      prefs_cleanup();
      packet_cleanup();
      oid_resolv_cleanup();
      tvbuff_cleanup();
#ifdef HAVE_LIBGNUTLS
      gnutls_global_deinit();
#endif
      except_deinit();
      host_name_lookup_cleanup();
}

void
epan_conversation_init(void)
{
      conversation_init();
}

void
epan_circuit_init(void)
{
      circuit_init();
}

epan_dissect_t*
epan_dissect_new(gboolean create_proto_tree, gboolean proto_tree_visible)
{
      epan_dissect_t    *edt;

      edt = g_new(epan_dissect_t, 1);

      if (create_proto_tree) {
            edt->tree = proto_tree_create_root();
            proto_tree_set_visible(edt->tree, proto_tree_visible);
      }
      else {
            edt->tree = NULL;
      }

      return edt;
}

void
epan_dissect_run(epan_dissect_t *edt, void* pseudo_header,
        const guint8* data, frame_data *fd, column_info *cinfo)
{
      /* free all memory allocated during previous packet */
      ep_free_all();

      dissect_packet(edt, pseudo_header, data, fd, cinfo);
}


void
epan_dissect_free(epan_dissect_t* edt)
{
      /* Free the data sources list. */
      free_data_sources(&edt->pi);

      /* Free all tvb's created from this tvb, unless dissector
       * wanted to store the pointer (in which case, the dissector
       * would have incremented the usage count on that tvbuff_t*) */
      tvb_free_chain(edt->tvb);

      if (edt->tree) {
            proto_tree_free(edt->tree);
      }

      g_free(edt);
}

void
epan_dissect_prime_dfilter(epan_dissect_t *edt, const dfilter_t* dfcode)
{
      dfilter_prime_proto_tree(dfcode, edt->tree);
}

void
epan_dissect_fill_in_columns(epan_dissect_t *edt)
{
    col_fill_in(&edt->pi);
}

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