epan/sigcomp_state_hdlr.h

   1 /* sigcomp_state_hdlr.c
   2  * Routines making up the State handler of the Univerasl Decompressor Virtual Machine (UDVM)
   3  * used for Signaling Compression (SigComp) dissection.
   4  * Copyright 2004, Anders Broman <anders.broman@ericsson.com>
   5  *
   6  * $Id$
   7  *
   8  * Wireshark - Network traffic analyzer
   9  * By Gerald Combs <gerald@wireshark.org>
  10  * Copyright 1998 Gerald Combs
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  25  * References:
  26  * http://www.ietf.org/rfc/rfc3320.txt?number=3320
  27  * http://www.ietf.org/rfc/rfc3321.txt?number=3321
  28  * Useful links :
  29  * http://www.ietf.org/internet-drafts/draft-ietf-rohc-sigcomp-impl-guide-03.txt
  30  * http://www.ietf.org/internet-drafts/draft-ietf-rohc-sigcomp-sip-01.txt
  31  */
  32
  33 #ifndef SIGCOMP_STATE_HDLR_H
  34 #define SIGCOMP_STATE_HDLR_H
  35
  36 extern const value_string result_code_vals[];
  37 extern int udvm_state_access(tvbuff_t *tvb, proto_tree *tree,guint8 *buff,guint16 p_id_start, guint16 p_id_length, guint16 state_begin, guint16 *state_length,
  38                                                                 guint16 *state_address, guint16 *state_instruction, gint hf_id);
  39
  40 extern void udvm_state_create(guint8 *state_buff,guint8 *state_identifier_buff,guint16 p_id_length);
  41 extern void udvm_state_free(guint8 buff[],guint16 p_id_start,guint16 p_id_length);
  42
  43 extern void sigcomp_init_udvm(void);
  44
  45 #define STATE_BUFFER_SIZE 20
  46 #define STATE_MIN_ACCESS_LEN 6
  47
  48 #endif
  49 /* SIGCOMP_STATE_HDLR_H */