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/* packet-ip.h
* Definitions for IP packet disassembly structures and routines
*
* $Id: packet-ip.h,v 1.1 1999/03/23 03:14:38 gram Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@zing.org>
* Copyright 1998 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef __PACKET_IP_H__
#define __PACKET_IP_H__
#define IP_PROTO_ICMP 1
#define IP_PROTO_IGMP 2
#define IP_PROTO_TCP 6
#define IP_PROTO_UDP 17
#define IP_PROTO_OSPF 89
typedef enum {
NO_LENGTH, /* option has no data, hence no length */
FIXED_LENGTH, /* option always has the same length */
VARIABLE_LENGTH /* option is variable-length - optlen is minimum */
} opt_len_type;
/* Member of table of IP or TCP options. */
typedef struct {
int optcode; /* code for option */
char *name; /* name of option */
opt_len_type len_type; /* type of option length field */
int optlen; /* value length should be (minimum if VARIABLE) */
void (*dissect)(proto_tree *, const char *, const u_char *, int, guint);
/* routine to dissect option */
} ip_tcp_opt;
/* Routine to dissect IP or TCP options. */
void dissect_ip_tcp_options(proto_tree *, const u_char *, int, guint,
ip_tcp_opt *, int, int);
#endif
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