forked from osmocom/wireshark
126 lines
4.3 KiB
C
126 lines
4.3 KiB
C
/* packet_info.h
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* Definitions for packet info structures and routines
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*
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* $Id: packet_info.h,v 1.7 2001/10/01 08:29:37 guy Exp $
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@ethereal.com>
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* Copyright 1998 Gerald Combs
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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_INFO_H__
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#define __PACKET_INFO_H__
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#include "frame_data.h"
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#include "tvbuff.h"
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/* Types of addresses Ethereal knows about. */
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typedef enum {
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AT_NONE, /* no link-layer address */
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AT_ETHER, /* MAC (Ethernet, 802.x, FDDI) address */
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AT_IPv4, /* IPv4 */
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AT_IPv6, /* IPv6 */
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AT_IPX, /* IPX */
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AT_SNA, /* SNA */
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AT_ATALK, /* Appletalk DDP */
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AT_VINES, /* Banyan Vines */
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AT_OSI, /* OSI NSAP */
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AT_DLCI /* Frame Relay DLCI */
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} address_type;
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typedef struct _address {
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address_type type; /* type of address */
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int len; /* length of address, in bytes */
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const guint8 *data; /* bytes that constitute address */
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} address;
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#define SET_ADDRESS(addr, addr_type, addr_len, addr_data) { \
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(addr)->type = (addr_type); \
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(addr)->len = (addr_len); \
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(addr)->data = (addr_data); \
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}
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/*
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* Given two addresses, return "true" if they're equal, "false" otherwise.
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*/
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#define ADDRESSES_EQUAL(addr1, addr2) \
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((addr1)->type == (addr2)->type && \
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(addr1)->len == (addr2)->len && \
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memcmp((addr1)->data, (addr2)->data, (addr1)->len) == 0)
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/*
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* Copy an address, allocating a new buffer for the address data.
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*/
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#define COPY_ADDRESS(to, from) { \
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guint8 *COPY_ADDRESS_data; \
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(to)->type = (from)->type; \
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(to)->len = (from)->len; \
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COPY_ADDRESS_data = g_malloc((from)->len); \
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memcpy(COPY_ADDRESS_data, (from)->data, (from)->len); \
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(to)->data = COPY_ADDRESS_data; \
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}
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/* Types of port numbers Ethereal knows about. */
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typedef enum {
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PT_NONE, /* no port number */
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PT_SCTP, /* SCTP */
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PT_TCP, /* TCP */
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PT_UDP, /* UDP */
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PT_NCP /* NCP connection */
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} port_type;
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#define P2P_DIR_UNKNOWN -1
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#define P2P_DIR_SENT 0
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#define P2P_DIR_RECV 1
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typedef struct _packet_info {
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const char *current_proto; /* name of protocol currently being dissected */
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frame_data *fd;
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tvbuff_t *compat_top_tvb; /* only needed while converting Ethereal to use tvbuffs */
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union wtap_pseudo_header *pseudo_header;
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int len;
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int captured_len;
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address dl_src; /* link-layer source address */
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address dl_dst; /* link-layer destination address */
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address net_src; /* network-layer source address */
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address net_dst; /* network-layer destination address */
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address src; /* source address (net if present, DL otherwise )*/
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address dst; /* destination address (net if present, DL otherwise )*/
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guint32 ethertype; /* Ethernet Type Code, if this is an Ethernet packet */
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guint32 ipproto; /* IP protocol, if this is an IP packet */
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guint32 ipxptype; /* IPX packet type, if this is an IPX packet */
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gboolean fragmented; /* TRUE if the protocol is only a fragment */
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gboolean in_error_pkt; /* TRUE if we're inside an {ICMP,CLNP,...} error packet */
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port_type ptype; /* type of the following two port numbers */
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guint32 srcport; /* source port */
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guint32 destport; /* destination port */
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guint32 match_port;
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gboolean can_desegment; /* TRUE if this segment could be desegmented */
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int desegment_offset; /* offset of stuff needing desegmentation */
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guint32 desegment_len; /* requested desegmentation additional length */
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int iplen;
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int iphdrlen;
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int p2p_dir;
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void *private; /* pointer to data passed from one dissector to another */
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} packet_info;
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void blank_packetinfo(void);
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extern packet_info pi;
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#endif /* __PACKET_INFO_H__ */
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