231 lines
4.9 KiB
C
231 lines
4.9 KiB
C
/* epan.c
|
|
*
|
|
* $Id$
|
|
*
|
|
* 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 "column-utils.h"
|
|
#include "tap.h"
|
|
#include "addr_resolv.h"
|
|
#include "oid_resolv.h"
|
|
#include "emem.h"
|
|
#include "expert.h"
|
|
|
|
#ifdef HAVE_LUA_5_1
|
|
int wslua_init(void*);
|
|
#endif
|
|
|
|
static void (*report_failure_func)(const char *, va_list);
|
|
static void (*report_open_failure_func)(const char *, int, gboolean);
|
|
static void (*report_read_failure_func)(const char *, int);
|
|
|
|
gchar*
|
|
epan_get_version(void) {
|
|
return VERSION;
|
|
}
|
|
|
|
void
|
|
epan_init(void (*register_all_protocols)(void),
|
|
void (*register_all_handoffs)(void),
|
|
void (*report_failure)(const char *, va_list),
|
|
void (*report_open_failure)(const char *, int, gboolean),
|
|
void (*report_read_failure)(const char *, int))
|
|
{
|
|
report_failure_func = report_failure;
|
|
report_open_failure_func = report_open_failure;
|
|
report_read_failure_func = 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();
|
|
oid_resolv_init();
|
|
tap_init();
|
|
proto_init(register_all_protocols, register_all_handoffs);
|
|
packet_init();
|
|
dfilter_init();
|
|
final_registration_all_protocols();
|
|
host_name_lookup_init();
|
|
expert_init();
|
|
#ifdef HAVE_LUA_5_1
|
|
wslua_init(NULL);
|
|
#endif
|
|
|
|
}
|
|
|
|
void
|
|
epan_cleanup(void)
|
|
{
|
|
expert_cleanup();
|
|
dfilter_cleanup();
|
|
proto_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();
|
|
}
|
|
|
|
/*
|
|
* Report a general error.
|
|
*/
|
|
void
|
|
report_failure(const char *msg_format, ...)
|
|
{
|
|
va_list ap;
|
|
|
|
va_start(ap, msg_format);
|
|
(*report_failure_func)(msg_format, ap);
|
|
va_end(ap);
|
|
}
|
|
|
|
/*
|
|
* Report an error when trying to open or create a file.
|
|
* "err" is assumed to be an error code from Wiretap; positive values are
|
|
* UNIX-style errnos, so this can be used for open failures not from
|
|
* Wiretap as long as the failue code is just an errno.
|
|
*/
|
|
void
|
|
report_open_failure(const char *filename, int err,
|
|
gboolean for_writing)
|
|
{
|
|
(*report_open_failure_func)(filename, err, for_writing);
|
|
}
|
|
|
|
/*
|
|
* Report an error when trying to read a file.
|
|
* "err" is assumed to be a UNIX-style errno.
|
|
*/
|
|
void
|
|
report_read_failure(const char *filename, int err)
|
|
{
|
|
(*report_read_failure_func)(filename, err);
|
|
}
|
|
|
|
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);
|
|
}
|