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/* lbio.h
 * This file is part of the LaBrea package
 * Copyright (C) 2001, 2002 Tom Liston <tliston@premmag.com>
 * 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
 * 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.
 * $Id: lbio.h,v 1.2 2003/09/12 21:23:39 lorgor Exp $

#ifndef LBIO_H
#define LBIO_H

#include <pcap.h>

/* Main IO ctl structure */

struct io_s {
  /* control structures (mostly uses netwk byte order) */
  struct intf_entry     *ifent;           /* Interface */
  ip_addr_t       myip;       /* My own IP addr (in host byte order) */
  struct addr           *mymac;           /* My own IP MAC addr */
  struct addr           *bogus_mac; /* Bogus mac addr */
  struct pkt            *bcast;           /* Contains broadcast ARP WHO HAS for */
                              /*    switch environment */

  /* global variables */
  u_char          buf[BUFSIZE];
  int             mtu;
  int             dloff;            /* Data link offset */
  uint32_t        net;        /* Subnet for capture */
  uint32_t        mask;       /* Netmask for capture */

  /* Declarations for WinPcap list */
  char                  adapter_name_list[MAX_NUM_ADAPTER][BUFSIZE];
                              /* WinPcap driver adapter name */
  char                  adapter_desc_list[MAX_NUM_ADAPTER][BUFSIZE];
                              /* Adapter descriptions */
  int             adapter_total_num;      /* total # adapters in all */
  int             adapter_num;
  int             intf_num;

  /* handles */
  eth_t                 *eth;
  intf_t          *intf;
  pcap_t          *pcap;
  rand_t          *rnd;

typedef struct io_s io_t;
extern io_t io;               /* Let others get at this structure */

void        lbio_init(u_char *dev, u_char *texpr);
int         lbio_send_pkt(const struct pkt *pkt);
int         lbio_send_ip_pkt (struct pkt *new, const struct pkt *pkt,
                          const uint16_t ipl, const u_char *msg);
uint32_t    lbio_rand(void);
void        lbio_send_ARP_Who_Has (ip_addr_t tpa);
void        lbio_send_bogus_ARP (const ip_addr_t tpa, const struct pkt *pkt);
void        lbio_close(void);
char              *lbio_ntoa (const ip_addr_t ip);
int         lbio_ip_offset (const ip_addr_t ip, ip_addr_t *offset);
int         lbio_print_libdnet_intf_list(void);
int         lbio_print_pcap_adapter_list(void);

#endif /* LBIO_H */

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