diff options
Diffstat (limited to 'packet-ip.h')
-rw-r--r-- | packet-ip.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/packet-ip.h b/packet-ip.h new file mode 100644 index 0000000000..2dc52ea39d --- /dev/null +++ b/packet-ip.h @@ -0,0 +1,56 @@ +/* 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 |