1998-09-16 02:39:15 +00:00
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/* packet.h
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* Definitions for packet disassembly structures and routines
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*
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1998-09-21 16:16:01 +00:00
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* $Id: packet.h,v 1.6 1998/09/21 16:16:00 gram Exp $
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1998-09-16 03:22:19 +00:00
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*
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1998-09-16 02:39:15 +00:00
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@zing.org>
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* Copyright 1998 Gerald Combs
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*
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __PACKET_H__
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#define __PACKET_H__
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/* Pointer versions of ntohs and ntohl. Given a pointer to a member of a
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* byte array, returns the value of the two or four bytes at the pointer.
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* Handy for
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*/
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#if BYTE_ORDER == LITTLE_ENDIAN
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#define pntohs(p) ((guint16) \
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((guint16)*((guint8 *)p+0)<<8| \
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(guint16)*((guint8 *)p+1)<<0))
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#define pntohl(p) ((guint32)*((guint8 *)p+0)<<24| \
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(guint32)*((guint8 *)p+1)<<16| \
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(guint32)*((guint8 *)p+2)<<8| \
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(guint32)*((guint8 *)p+3)<<0)
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#else /* BIG_ENDIAN */
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#define pntohs(p) ((guint16) \
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((guint16)*((guint8 *)p+1)<<8| \
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(guint16)*((guint8 *)p+0)<<0))
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#define pntohl(p) ((guint32)*((guint8 *)p+3)<<24| \
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(guint32)*((guint8 *)p+2)<<16| \
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(guint32)*((guint8 *)p+1)<<8| \
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(guint32)*((guint8 *)p+0)<<0)
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#endif /* LITTLE_ENDIAN */
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#define IEEE_802_3_MAX_LEN 1500
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#define BYTE_VIEW_WIDTH 16
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typedef struct _frame_data {
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guint32 pkt_len; /* Packet length */
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guint32 cap_len; /* Amount actually captured */
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guint32 secs; /* Seconds */
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guint32 usecs; /* Microseconds */
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long file_off; /* File offset */
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gchar *win_info[5]; /* Packet list text */
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} frame_data;
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1998-09-17 03:12:28 +00:00
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typedef struct _packet_info {
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char *srcip;
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int ip_src;
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char *destip;
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int ipproto;
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int srcport;
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int destport;
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int iplen;
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int iphdrlen;
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} packet_info;
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1998-09-16 02:39:15 +00:00
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/* Many of the structs and definitions below were taken from include files
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* in the Linux distribution. */
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/* ARP / RARP structs and definitions */
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typedef struct _e_ether_arp {
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guint16 ar_hrd;
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guint16 ar_pro;
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guint8 ar_hln;
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guint8 ar_pln;
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guint16 ar_op;
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guint8 arp_sha[6];
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guint8 arp_spa[4];
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guint8 arp_tha[6];
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guint8 arp_tpa[4];
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} e_ether_arp;
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#ifndef ARPOP_REQUEST
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#define ARPOP_REQUEST 1 /* ARP request. */
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#endif
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#ifndef ARPOP_REPLY
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#define ARPOP_REPLY 2 /* ARP reply. */
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#endif
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/* Some OSes have different names, or don't define these at all */
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#ifndef ARPOP_RREQUEST
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#define ARPOP_RREQUEST 3 /* RARP request. */
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#endif
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#ifndef ARPOP_RREPLY
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#define ARPOP_RREPLY 4 /* RARP reply. */
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#endif
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/* ICMP structs and definitions */
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typedef struct _e_icmp {
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guint8 icmp_type;
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guint8 icmp_code;
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guint16 icmp_cksum;
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union {
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struct { /* Address mask request/reply */
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guint16 id;
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guint16 seq;
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guint32 sn_mask;
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} am;
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struct { /* Timestap request/reply */
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guint16 id;
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guint16 seq;
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guint32 orig;
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guint32 recv;
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guint32 xmit;
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} ts;
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guint32 zero; /* Unreachable */
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} opt;
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} e_icmp;
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#define ICMP_ECHOREPLY 0
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#define ICMP_UNREACH 3
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#define ICMP_SOURCEQUENCH 4
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#define ICMP_REDIRECT 5
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#define ICMP_ECHO 8
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#define ICMP_TIMXCEED 11
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#define ICMP_PARAMPROB 12
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#define ICMP_TSTAMP 13
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#define ICMP_TSTAMPREPLY 14
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#define ICMP_IREQ 15
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#define ICMP_IREQREPLY 16
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#define ICMP_MASKREQ 17
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#define ICMP_MASKREPLY 18
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/* IGMP structs and definitions */
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typedef struct _e_igmp {
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#if BYTE_ORDER == BIG_ENDIAN
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guint8 igmp_v:4;
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guint8 igmp_t:4;
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#else /* Little endian */
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guint8 igmp_t:4;
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guint8 igmp_v:4;
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#endif
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guint8 igmp_unused;
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guint16 igmp_cksum;
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guint32 igmp_gaddr;
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} e_igmp;
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#define IGMP_M_QRY 0x01
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#define IGMP_V1_M_RPT 0x02
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#define IGMP_V2_LV_GRP 0x07
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#define IGMP_DVMRP 0x03
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#define IGMP_PIM 0x04
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#define IGMP_V2_M_RPT 0x06
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#define IGMP_MTRC_RESP 0x1e
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#define IGMP_MTRC 0x1f
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/* IP structs and definitions */
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typedef struct _e_ip {
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#if BYTE_ORDER == BIG_ENDIAN
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guint8 ip_v:4;
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guint8 ip_hl:4;
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#else /* Little endian */
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guint8 ip_hl:4;
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guint8 ip_v:4;
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#endif
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guint8 ip_tos;
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guint16 ip_len;
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guint16 ip_id;
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guint16 ip_off;
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guint8 ip_ttl;
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guint8 ip_p;
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guint16 ip_sum;
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guint32 ip_src;
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guint32 ip_dst;
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} e_ip;
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#define IPTOS_TOS_MASK 0x1E
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#define IPTOS_TOS(tos) ((tos) & IPTOS_TOS_MASK)
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#define IPTOS_NONE 0x00
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#define IPTOS_LOWDELAY 0x10
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#define IPTOS_THROUGHPUT 0x08
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#define IPTOS_RELIABILITY 0x04
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#define IPTOS_LOWCOST 0x02
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#define IP_PROTO_ICMP 1
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#define IP_PROTO_IGMP 2
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#define IP_PROTO_TCP 6
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#define IP_PROTO_UDP 17
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#define IP_PROTO_OSPF 89
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/* PPP structs and definitions */
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typedef struct _e_ppphdr {
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guint8 ppp_flag;
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guint8 ppp_addr;
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guint8 ppp_ctl;
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guint16 ppp_prot;
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} e_ppphdr;
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/* TCP structs and definitions */
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typedef struct _e_tcphdr {
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guint16 th_sport;
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guint16 th_dport;
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guint32 th_seq;
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guint32 th_ack;
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#if BYTE_ORDER == LITTLE_ENDIAN
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guint8 th_x2:4;
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guint8 th_off:4;
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#else
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guint8 th_off:4;
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guint8 th_x2:4;
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#endif
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guint8 th_flags;
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#define TH_FIN 0x01
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#define TH_SYN 0x02
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#define TH_RST 0x04
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#define TH_PUSH 0x08
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#define TH_ACK 0x10
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#define TH_URG 0x20
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guint16 th_win;
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guint16 th_sum;
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guint16 th_urp;
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} e_tcphdr;
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/* UDP structs and definitions */
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typedef struct _e_udphdr {
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guint16 uh_sport;
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guint16 uh_dport;
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guint16 uh_ulen;
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guint16 uh_sum;
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} e_udphdr;
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/* UDP Ports -> should go in packet-udp.h */
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#define UDP_PORT_DNS 53
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#define UDP_PORT_BOOTPS 67
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1998-09-21 16:16:01 +00:00
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#define UDP_PORT_IPX 213
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1998-09-16 02:39:15 +00:00
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#define UDP_PORT_RIP 520
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/* TCP Ports */
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#define TCP_PORT_PRINTER 515
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/* Tree types. Each dissect_* routine should have one for each
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add_subtree() call. */
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#define ETT_IEEE8023 0
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#define ETT_ETHER2 1
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#define ETT_LLC 2
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#define ETT_TOKEN_RING 3
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#define ETT_TR_IERR_CNT 4
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#define ETT_TR_NERR_CNT 5
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#define ETT_TR_MAC 6
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#define ETT_PPP 7
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#define ETT_ARP 8
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#define ETT_IP 9
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#define ETT_UDP 10
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#define ETT_TCP 11
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#define ETT_ICMP 12
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#define ETT_IGMP 13
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#define ETT_IPX 14
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#define ETT_SPX 15
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#define ETT_NCP 16
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#define ETT_DNS 17
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#define ETT_DNS_ANS 18
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#define ETT_DNS_QRY 19
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#define ETT_RIP 20
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#define ETT_RIP_VEC 21
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#define ETT_OSPF 22
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#define ETT_OSPF_HDR 23
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#define ETT_OSPF_HELLO 24
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#define ETT_OSPF_DESC 25
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#define ETT_OSPF_LSR 26
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#define ETT_OSPF_LSA_UPD 27
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#define ETT_OSPF_LSA 28
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#define ETT_LPD 29
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#define ETT_RAW 30
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#define ETT_BOOTP 31
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#define ETT_BOOTP_OPTION 32
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#define ETT_IPv6 33
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1998-09-17 02:01:50 +00:00
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#define ETT_CLNP 34
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#define ETT_COTP 35
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1998-09-17 02:37:47 +00:00
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#define ETT_VINES 36
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#define ETT_VSPP 37
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1998-09-16 02:39:15 +00:00
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/* Should be the last item number plus one */
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1998-09-17 02:37:47 +00:00
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#define NUM_TREE_TYPES 38
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1998-09-16 02:39:15 +00:00
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/* The version of pcap.h that comes with some systems is missing these
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* #defines.
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*/
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#ifndef DLT_RAW
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#define DLT_RAW 12
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#endif
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#ifndef DLT_SLIP_BSDOS
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#define DLT_SLIP_BSDOS 13
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#endif
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#ifndef DLT_PPP_BSDOS
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#define DLT_PPP_BSDOS 14
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#endif
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/* Utility routines used by packet*.c */
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gchar* ether_to_str(guint8 *);
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gchar* ip_to_str(guint8 *);
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void packet_hex_print(GtkText *, guint8 *, gint, gint, gint);
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GtkWidget* add_item_to_tree(GtkWidget *, gint, gint, gchar *, ...);
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void decode_start_len(GtkTreeItem *, gint*, gint*);
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/* Routines in packet.c */
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void dissect_packet(const u_char *, frame_data *, GtkTree *);
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void add_subtree(GtkWidget *, GtkWidget*, gint);
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void expand_tree(GtkWidget *, gpointer);
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void collapse_tree(GtkWidget *, gpointer);
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/*
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* Routines in packet-*.c
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* Routines should take three args: packet data *, frame_data *, tree *
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* They should never modify the packet data.
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*/
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void dissect_eth(const u_char *, frame_data *, GtkTree *);
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void dissect_ppp(const u_char *, frame_data *, GtkTree *);
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void dissect_raw(const u_char *, frame_data *, GtkTree *);
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void dissect_tr(const u_char *, frame_data *, GtkTree *);
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/*
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* Routines in packet-*.c
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* Routines should take four args: packet data *, offset, frame_data *,
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* tree *
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* They should never modify the packet data.
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*/
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void dissect_arp(const u_char *, int, frame_data *, GtkTree *);
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void dissect_bootp(const u_char *, int, frame_data *, GtkTree *);
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void dissect_data(const u_char *, int, frame_data *, GtkTree *);
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void dissect_dns(const u_char *, int, frame_data *, GtkTree *);
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void dissect_icmp(const u_char *, int, frame_data *, GtkTree *);
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void dissect_igmp(const u_char *, int, frame_data *, GtkTree *);
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void dissect_ip(const u_char *, int, frame_data *, GtkTree *);
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void dissect_ipv6(const u_char *, int, frame_data *, GtkTree *);
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void dissect_ipx(const u_char *, int, frame_data *, GtkTree *);
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void dissect_llc(const u_char *, int, frame_data *, GtkTree *);
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void dissect_lpd(const u_char *, int, frame_data *, GtkTree *);
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1998-09-17 02:01:50 +00:00
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void dissect_osi(const u_char *, int, frame_data *, GtkTree *);
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1998-09-16 02:39:15 +00:00
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void dissect_ospf(const u_char *, int, frame_data *, GtkTree *);
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void dissect_ospf_hello(const u_char *, int, frame_data *, GtkTree *);
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void dissect_tcp(const u_char *, int, frame_data *, GtkTree *);
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void dissect_trmac(const u_char *, int, frame_data *, GtkTree *);
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void dissect_udp(const u_char *, int, frame_data *, GtkTree *);
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1998-09-17 02:37:47 +00:00
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void dissect_vines(const u_char *, int, frame_data *, GtkTree *);
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void dissect_vspp(const u_char *, int, frame_data *, GtkTree *);
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1998-09-16 02:39:15 +00:00
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/* This function is in ethertype.c */
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void ethertype(guint16 etype, int offset,
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const u_char *pd, frame_data *fd, GtkTree *tree,
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GtkWidget *fh_tree);
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#endif /* packet.h */
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