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/* cygwin/if.h
Copyright 1996, 2000, 2001, 2007, 2012, 2013 Red Hat, Inc.
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#ifndef _CYGWIN_IF_H_
#define _CYGWIN_IF_H_
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#include <sys/types.h>
#include <cygwin/socket.h>
/* Standard interface flags. */
#define IFF_UP 0x1 /* interface is up */
#define IFF_BROADCAST 0x2 /* broadcast address valid */
#define IFF_LOOPBACK 0x8 /* is a loopback net */
#define IFF_POINTOPOINT 0x10 /* is a point-to-point interface */
#define IFF_NOTRAILERS 0x20 /* avoid use of trailers */
#define IFF_RUNNING 0x40 /* resources allocated */
#define IFF_NOARP 0x80 /* no ARP protocol */
#define IFF_PROMISC 0x100 /* receive all packets */
#define IFF_MULTICAST 0x1000 /* Supports multicast */
#define IFF_LOWER_UP 0x10000 /* driver signals L1 up */
#define IFF_DORMANT 0x20000 /* driver signals dormant */
struct if_nameindex {
unsigned if_index;
char *if_name;
};
/* This is the structure expected by ioctl when the application requests
the friendly adapter name (>= XP SP1). ifru_data should point to such
a structure when ioctl is called with SIOCGIFFRNDLYNAM. */
#define IFRF_FRIENDLYNAMESIZ 260
struct ifreq_frndlyname {
int ifrf_len;
char ifrf_friendlyname[IFRF_FRIENDLYNAMESIZ];
};
/*
* Interface request structure used for socket
* ioctl's. All interface ioctl's must have parameter
* definitions which begin with ifr_name. The
* remainder may be interface specific.
*/
#define IFNAMSIZ 44
#define IF_NAMESIZE IFNAMSIZ
#define IFHWADDRLEN 6
struct ifreq {
union {
char ifrn_name[IFNAMSIZ]; /* Unique Windows Adapter name (A GUID) */
} ifr_ifrn;
union {
struct sockaddr ifru_addr;
struct sockaddr ifru_broadaddr;
struct sockaddr ifru_dstaddr;
struct sockaddr ifru_netmask;
struct sockaddr ifru_hwaddr;
int ifru_flags;
int ifru_metric;
int ifru_mtu;
int ifru_ifindex;
/* The space must be preallocated by the application. */
void *ifru_data;
/* Pad to sizeof sockaddr_in6 for further extensions. */
char __ifru_pad[28];
} ifr_ifru;
};
#define ifr_name ifr_ifrn.ifrn_name /* interface name */
#define ifr_addr ifr_ifru.ifru_addr /* address */
#define ifr_broadaddr ifr_ifru.ifru_broadaddr /* broadcast address */
#define ifr_dstaddr ifr_ifru.ifru_dstaddr /* destination address */
#define ifr_netmask ifr_ifru.ifru_netmask /* interface net mask */
#define ifr_flags ifr_ifru.ifru_flags /* flags */
#define ifr_hwaddr ifr_ifru.ifru_hwaddr /* MAC address */
#define ifr_metric ifr_ifru.ifru_metric /* metric */
#define ifr_mtu ifr_ifru.ifru_mtu /* mtu */
#define ifr_ifindex ifr_ifru.ifru_ifindex /* interface index */
#define ifr_data ifr_ifru.ifru_data /* for use by interface */
#define ifr_frndlyname ifr_ifru.ifru_data /* Windows friendly if name */
/*
* Structure used in SIOCGIFCONF request.
* Used to retrieve interface configuration
* for machine (useful for programs which
* must know all networks accessible).
*/
struct ifconf
{
int ifc_len; /* size of buffer */
union
{
caddr_t ifcu_buf;
struct ifreq *ifcu_req;
} ifc_ifcu;
};
#define ifc_buf ifc_ifcu.ifcu_buf /* buffer address */
#define ifc_req ifc_ifcu.ifcu_req /* array of structures */
#ifndef __INSIDE_CYGWIN_NET__
extern unsigned if_nametoindex (const char *);
extern char *if_indextoname (unsigned, char *);
extern struct if_nameindex *if_nameindex (void);
extern void if_freenameindex (struct if_nameindex *);
#endif
#ifdef __cplusplus
};
#endif /* __cplusplus */
#endif /* _CYGWIN_IF_H_ */
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