epan/epan.c

   1 /* epan.c
   2  *
   3  * $Id$
   4  *
   5  * Wireshark Protocol Analyzer Library
   6  *
   7  * Copyright (c) 2001 by Gerald Combs <gerald@wireshark.org>
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License
  11  * as published by the Free Software Foundation; either version 2
  12  * of the License, or (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  22  */
  23
  24 #ifdef HAVE_CONFIG_H
  25 #include "config.h"
  26 #endif
  27
  28 #if (defined(HAVE_LIBGCRYPT) || defined(HAVE_LIBGNUTLS)) && defined(_WIN32)
  29 #include <winposixtype.h>
  30 #endif
  31
  32 #ifdef HAVE_LIBGCRYPT
  33 #include <gcrypt.h>
  34 #endif /* HAVE_LIBGCRYPT */
  35
  36 #ifdef HAVE_LIBGNUTLS
  37 #include <gnutls/gnutls.h>
  38 #endif /* HAVE_LIBGNUTLS */
  39
  40
  41 #include <glib.h>
  42 #include "epan.h"
  43 #include "epan_dissect.h"
  44 #include "report_err.h"
  45
  46 #include "conversation.h"
  47 #include "circuit.h"
  48 #include "except.h"
  49 #include "packet.h"
  50 #include "column-utils.h"
  51 #include "tap.h"
  52 #include "addr_resolv.h"
  53 #include "oid_resolv.h"
  54 #include "emem.h"
  55 #include "expert.h"
  56
  57 #ifdef HAVE_LUA_5_1
  58         int wslua_init(void*);
  59 #endif
  60
  61 gchar*
  62 epan_get_version(void) {
  63   return VERSION;
  64 }
  65
  66 void
  67 epan_init(void (*register_all_protocols)(register_cb cb, gpointer client_data),
  68           void (*register_all_handoffs)(register_cb cb, gpointer client_data),
  69           register_cb cb,
  70           gpointer client_data,
  71           void (*report_failure)(const char *, va_list),
  72           void (*report_open_failure)(const char *, int, gboolean),
  73           void (*report_read_failure)(const char *, int))
  74 {
  75         init_report_err(report_failure, report_open_failure, report_read_failure);
  76
  77         /* initialize memory allocation subsystem */
  78         ep_init_chunk();
  79         se_init_chunk();
  80
  81         /* initialize the GUID to name mapping table */
  82         guids_init();
  83
  84         except_init();
  85 #ifdef HAVE_LIBGNUTLS
  86         gnutls_global_init();
  87 #elif defined(HAVE_LIBGCRYPT)
  88         gcry_check_version(NULL);
  89 #endif
  90         tvbuff_init();
  91         oid_resolv_init();
  92         tap_init();
  93         proto_init(register_all_protocols, register_all_handoffs, cb, client_data);
  94         packet_init();
  95         dfilter_init();
  96         final_registration_all_protocols();
  97         host_name_lookup_init();
  98         expert_init();
  99 #ifdef HAVE_LUA_5_1
 100         wslua_init(NULL);
 101 #endif
 102
 103 }
 104
 105 void
 106 epan_cleanup(void)
 107 {
 108         expert_cleanup();
 109         dfilter_cleanup();
 110         proto_cleanup();
 111         packet_cleanup();
 112         oid_resolv_cleanup();
 113         tvbuff_cleanup();
 114 #ifdef HAVE_LIBGNUTLS
 115         gnutls_global_deinit();
 116 #endif
 117         except_deinit();
 118         host_name_lookup_cleanup();
 119 }
 120
 121 void
 122 epan_conversation_init(void)
 123 {
 124         conversation_init();
 125 }
 126
 127 void
 128 epan_circuit_init(void)
 129 {
 130         circuit_init();
 131 }
 132
 133 epan_dissect_t*
 134 epan_dissect_new(gboolean create_proto_tree, gboolean proto_tree_visible)
 135 {
 136         epan_dissect_t  *edt;
 137
 138         edt = g_new(epan_dissect_t, 1);
 139
 140         if (create_proto_tree) {
 141                 edt->tree = proto_tree_create_root();
 142                 proto_tree_set_visible(edt->tree, proto_tree_visible);
 143         }
 144         else {
 145                 edt->tree = NULL;
 146         }
 147
 148         return edt;
 149 }
 150
 151 void
 152 epan_dissect_run(epan_dissect_t *edt, void* pseudo_header,
 153         const guint8* data, frame_data *fd, column_info *cinfo)
 154 {
 155         /* free all memory allocated during previous packet */
 156         ep_free_all();
 157
 158         dissect_packet(edt, pseudo_header, data, fd, cinfo);
 159 }
 160
 161
 162 void
 163 epan_dissect_free(epan_dissect_t* edt)
 164 {
 165         /* Free the data sources list. */
 166         free_data_sources(&edt->pi);
 167
 168         /* Free all tvb's created from this tvb, unless dissector
 169          * wanted to store the pointer (in which case, the dissector
 170          * would have incremented the usage count on that tvbuff_t*) */
 171         tvb_free_chain(edt->tvb);
 172
 173         if (edt->tree) {
 174                 proto_tree_free(edt->tree);
 175         }
 176
 177         g_free(edt);
 178 }
 179
 180 void
 181 epan_dissect_prime_dfilter(epan_dissect_t *edt, const dfilter_t* dfcode)
 182 {
 183         dfilter_prime_proto_tree(dfcode, edt->tree);
 184 }
 185
 186 void
 187 epan_dissect_fill_in_columns(epan_dissect_t *edt)
 188 {
 189     col_fill_in(&edt->pi);
 190 }