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/*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 2001 Gerald Combs
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef DFILTER_H
#define DFILTER_H
#include <glib.h>
#include "ws_symbol_export.h"
/* Passed back to user */
typedef struct epan_dfilter dfilter_t;
#include <epan/proto.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
struct epan_dissect;
/* Module-level initialization */
void
dfilter_init(void);
/* Module-level cleanup */
void
dfilter_cleanup(void);
/* Compiles a string to a dfilter_t.
* On success, sets the dfilter* pointed to by dfp
* to either a NULL pointer (if the filter is a null
* filter, as generated by an all-blank string) or to
* a pointer to the newly-allocated dfilter_t
* structure.
*
* On failure, dfilter_error_msg points to an
* appropriate error message. This error message is
* a global string, so another invocation of
* dfilter_compile() will clear it. The dfilter*
* will be set to NULL after a failure.
*
* Returns TRUE on success, FALSE on failure.
*/
WS_DLL_PUBLIC
gboolean
dfilter_compile(const gchar *text, dfilter_t **dfp);
/* Frees all memory used by dfilter, and frees
* the dfilter itself. */
WS_DLL_PUBLIC
void
dfilter_free(dfilter_t *df);
/* dfilter_error_msg is NULL if there was no error during dfilter_compile,
* otherwise it points to a displayable error message. With MSVC and a
* libwireshark.dll, we need a special declaration.
*/
WS_DLL_PUBLIC const gchar *dfilter_error_msg;
/* Apply compiled dfilter */
WS_DLL_PUBLIC
gboolean
dfilter_apply_edt(dfilter_t *df, struct epan_dissect *edt);
/* Apply compiled dfilter */
gboolean
dfilter_apply(dfilter_t *df, proto_tree *tree);
/* Prime a proto_tree using the fields/protocols used in a dfilter. */
void
dfilter_prime_proto_tree(const dfilter_t *df, proto_tree *tree);
WS_DLL_PUBLIC
GPtrArray *
dfilter_deprecated_tokens(dfilter_t *df);
/* Print bytecode of dfilter to stdout */
WS_DLL_PUBLIC
void
dfilter_dump(dfilter_t *df);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* DFILTER_H */
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