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// ====================================================================
// Hercules - TUN/TAP Abstraction Layer
// ====================================================================
//
// Copyright (C) 2002-2007 by James A. Pierson
// (C) 2002-2006 by "Fish" (David B. Trout)
//
// $Id: tuntap.h,v 1.12 2007/06/23 00:04:19 ivan Exp $
//
// $Log: tuntap.h,v $
// Revision 1.12 2007/06/23 00:04:19 ivan
// Update copyright notices to include current year (2007)
//
// Revision 1.11 2006/12/08 09:43:31 jj
// Add CVS message log
//
#ifndef __TUNTAP_H_
#define __TUNTAP_H_
#include "hercules.h"
#if defined( HAVE_STRUCT_SOCKADDR_IN_SIN_LEN )
#define set_sockaddr_in_sin_len( sockaddr_in_ptr ) \
(sockaddr_in_ptr)->sin_len = sizeof( struct sockaddr_in )
#else
#define set_sockaddr_in_sin_len( sockaddr_in_ptr )
#endif
// ====================================================================
// Declarations
// ====================================================================
//
// Create TUN/TAP Interface
//
extern int TUNTAP_CreateInterface ( char* pszTUNDevice,
int iFlags,
int* pfd,
char* pszNetDevName );
//
// Configure TUN/TAP Interface
//
#ifdef OPTION_TUNTAP_CLRIPADDR
extern int TUNTAP_ClrIPAddr ( char* pszNetDevName );
#endif
extern int TUNTAP_SetIPAddr ( char* pszNetDevName,
char* pszIPAddr );
extern int TUNTAP_SetDestAddr ( char* pszNetDevName,
char* pszDestAddr );
#ifdef OPTION_TUNTAP_SETNETMASK
extern int TUNTAP_SetNetMask ( char* pszNetDevName,
char* pszNetMask );
#endif
extern int TUNTAP_SetMTU ( char* pszNetDevName,
char* pszMTU );
#ifdef OPTION_TUNTAP_SETMACADDR
extern int TUNTAP_SetMACAddr ( char* pszNetDevName,
char* pszMACAddr );
#endif
extern int TUNTAP_SetFlags ( char* pszNetDevName,
int iFlags );
extern int TUNTAP_GetFlags ( char* pszNetDevName,
int* piFlags );
#ifdef OPTION_TUNTAP_DELADD_ROUTES
extern int TUNTAP_AddRoute ( char* pszNetDevName,
char* pszDestAddr,
char* pszNetMask,
char* pszGWAddr,
int iFlags );
extern int TUNTAP_DelRoute ( char* pszNetDevName,
char* pszDestAddr,
char* pszNetMask,
char* pszGWAddr,
int iFlags );
#endif
// (the following function used by Win32 *and* NON-Win32 platforms)
extern void build_herc_iface_mac ( BYTE* out_mac, const BYTE* in_ip );
//
// Helper Macros
//
#if defined( WIN32 )
#define TUNTAP_Open tt32_open
#define TUNTAP_Close tt32_close
#define TUNTAP_Read tt32_read
#define TUNTAP_Write tt32_write
#define TUNTAP_IOCtl tt32_ioctl
#else
#define TUNTAP_Open open
#define TUNTAP_Close close
#define TUNTAP_Read read
#define TUNTAP_Write write
#define TUNTAP_IOCtl ioctl
#endif // defined( WIN32 )
#if defined( WIN32 )
// Win32 (MinGW/Cygwin/MSVC) does not have these
// so we need to define them ourselves...
struct rtentry
{
unsigned long int rt_pad1;
struct sockaddr rt_dst; // Target address.
struct sockaddr rt_gateway; // Gateway addr (RTF_GATEWAY)
struct sockaddr rt_genmask; // Target network mask (IP)
unsigned short int rt_flags;
short int rt_pad2;
unsigned long int rt_pad3;
unsigned char rt_tos;
unsigned char rt_class;
short int rt_pad4;
short int rt_metric; // +1 for binary compatibility!
char * rt_dev; // Forcing the device at add.
unsigned long int rt_mtu; // Per route MTU/Window.
unsigned long int rt_window; // Window clamping.
unsigned short int rt_irtt; // Initial RTT.
};
#define RTF_UP 0x0001 /* Route usable. */
#define RTF_GATEWAY 0x0002 /* Destination is a gateway. */
#define RTF_HOST 0x0004 /* Host entry (net otherwise). */
#define RTF_REINSTATE 0x0008 /* Reinstate route after timeout. */
#define RTF_DYNAMIC 0x0010 /* Created dyn. (by redirect). */
#define RTF_MODIFIED 0x0020 /* Modified dyn. (by redirect). */
#define RTF_MTU 0x0040 /* Specific MTU for this route. */
#define RTF_MSS RTF_MTU /* Compatibility. */
#define RTF_WINDOW 0x0080 /* Per route window clamping. */
#define RTF_IRTT 0x0100 /* Initial round trip time. */
#define RTF_REJECT 0x0200 /* Reject route. */
#define RTF_STATIC 0x0400 /* Manually injected route. */
#define RTF_XRESOLVE 0x0800 /* External resolver. */
#define RTF_NOFORWARD 0x1000 /* Forwarding inhibited. */
#define RTF_THROW 0x2000 /* Go to next class. */
#define RTF_NOPMTUDISC 0x4000 /* Do not send packets with DF. */
/* for IPv6 */
#define RTF_DEFAULT 0x00010000 /* default - learned via ND */
#define RTF_ALLONLINK 0x00020000 /* fallback, no routers on link */
#define RTF_ADDRCONF 0x00040000 /* addrconf route - RA */
#define RTF_LINKRT 0x00100000 /* link specific - device match */
#define RTF_NONEXTHOP 0x00200000 /* route with no nexthop */
#define RTF_CACHE 0x01000000 /* cache entry */
#define RTF_FLOW 0x02000000 /* flow significant route */
#define RTF_POLICY 0x04000000 /* policy route */
#define RTCF_VALVE 0x00200000
#define RTCF_MASQ 0x00400000
#define RTCF_NAT 0x00800000
#define RTCF_DOREDIRECT 0x01000000
#define RTCF_LOG 0x02000000
#define RTCF_DIRECTSRC 0x04000000
#define RTF_LOCAL 0x80000000
#define RTF_INTERFACE 0x40000000
#define RTF_MULTICAST 0x20000000
#define RTF_BROADCAST 0x10000000
#define RTF_NAT 0x08000000
#define RTF_ADDRCLASSMASK 0xF8000000
#define RT_ADDRCLASS(flags) ((__u_int32_t) flags >> 23)
#define RT_TOS(tos) ((tos) & IPTOS_TOS_MASK)
#define RT_LOCALADDR(flags) ((flags & RTF_ADDRCLASSMASK) \
== (RTF_LOCAL|RTF_INTERFACE))
#define RT_CLASS_UNSPEC 0
#define RT_CLASS_DEFAULT 253
#define RT_CLASS_MAIN 254
#define RT_CLASS_LOCAL 255
#define RT_CLASS_MAX 255
#define RTMSG_ACK NLMSG_ACK
#define RTMSG_OVERRUN NLMSG_OVERRUN
#define RTMSG_NEWDEVICE 0x11
#define RTMSG_DELDEVICE 0x12
#define RTMSG_NEWROUTE 0x21
#define RTMSG_DELROUTE 0x22
#define RTMSG_NEWRULE 0x31
#define RTMSG_DELRULE 0x32
#define RTMSG_CONTROL 0x40
#define RTMSG_AR_FAILED 0x51 /* Address Resolution failed. */
/* Use the definitions from the kernel header files. */
//#include <asm/ioctls.h>
// PROGRAMMING NOTE: Cygwin's headers define some (but not all)
// of the below values, but we unfortunately MUST use the below
// defined values since they're what TunTap32 expects...
#undef SIOCGIFCONF // (discard Cygwin's value to use below instead)
#undef SIOCGIFFLAGS // (discard Cygwin's value to use below instead)
#undef SIOCGIFADDR // (discard Cygwin's value to use below instead)
#undef SIOCGIFBRDADDR // (discard Cygwin's value to use below instead)
#undef SIOCGIFNETMASK // (discard Cygwin's value to use below instead)
#undef SIOCGIFMETRIC // (discard Cygwin's value to use below instead)
#undef SIOCGIFMTU // (discard Cygwin's value to use below instead)
#undef SIOCGIFHWADDR // (discard Cygwin's value to use below instead)
/* Routing table calls. */
#define SIOCADDRT 0x890B /* add routing table entry */
#define SIOCDELRT 0x890C /* delete routing table entry */
#define SIOCRTMSG 0x890D /* call to routing system */
/* Socket configuration controls. */
#define SIOCGIFNAME 0x8910 /* get iface name */
#define SIOCSIFLINK 0x8911 /* set iface channel */
#define SIOCGIFCONF 0x8912 /* get iface list */
#define SIOCGIFFLAGS 0x8913 /* get flags */
#define SIOCSIFFLAGS 0x8914 /* set flags */
#define SIOCGIFADDR 0x8915 /* get PA address */
#define SIOCSIFADDR 0x8916 /* set PA address */
#define SIOCGIFDSTADDR 0x8917 /* get remote PA address */
#define SIOCSIFDSTADDR 0x8918 /* set remote PA address */
#define SIOCGIFBRDADDR 0x8919 /* get broadcast PA address */
#define SIOCSIFBRDADDR 0x891a /* set broadcast PA address */
#define SIOCGIFNETMASK 0x891b /* get network PA mask */
#define SIOCSIFNETMASK 0x891c /* set network PA mask */
#define SIOCGIFMETRIC 0x891d /* get metric */
#define SIOCSIFMETRIC 0x891e /* set metric */
#define SIOCGIFMEM 0x891f /* get memory address (BSD) */
#define SIOCSIFMEM 0x8920 /* set memory address (BSD) */
#define SIOCGIFMTU 0x8921 /* get MTU size */
#define SIOCSIFMTU 0x8922 /* set MTU size */
#define SIOCSIFHWADDR 0x8924 /* set hardware address */
#define SIOCGIFENCAP 0x8925 /* get/set encapsulations */
#define SIOCSIFENCAP 0x8926
#define SIOCGIFHWADDR 0x8927 /* Get hardware address */
#define SIOCGIFSLAVE 0x8929 /* Driver slaving support */
#define SIOCSIFSLAVE 0x8930
#define SIOCADDMULTI 0x8931 /* Multicast address lists */
#define SIOCDELMULTI 0x8932
#define SIOCGIFINDEX 0x8933 /* name -> if_index mapping */
#define SIOGIFINDEX SIOCGIFINDEX /* misprint compatibility :-) */
#define SIOCSIFPFLAGS 0x8934 /* set/get extended flags set */
#define SIOCGIFPFLAGS 0x8935
#define SIOCDIFADDR 0x8936 /* delete PA address */
#define SIOCSIFHWBROADCAST 0x8937 /* set hardware broadcast addr */
#define SIOCGIFCOUNT 0x8938 /* get number of devices */
#define SIOCGIFBR 0x8940 /* Bridging support */
#define SIOCSIFBR 0x8941 /* Set bridging options */
#define SIOCGIFTXQLEN 0x8942 /* Get the tx queue length */
#define SIOCSIFTXQLEN 0x8943 /* Set the tx queue length */
/* ARP cache control calls. */
/* 0x8950 - 0x8952 * obsolete calls, don't re-use */
#define SIOCDARP 0x8953 /* delete ARP table entry */
#define SIOCGARP 0x8954 /* get ARP table entry */
#define SIOCSARP 0x8955 /* set ARP table entry */
/* RARP cache control calls. */
#define SIOCDRARP 0x8960 /* delete RARP table entry */
#define SIOCGRARP 0x8961 /* get RARP table entry */
#define SIOCSRARP 0x8962 /* set RARP table entry */
/* Driver configuration calls */
#define SIOCGIFMAP 0x8970 /* Get device parameters */
#define SIOCSIFMAP 0x8971 /* Set device parameters */
/* DLCI configuration calls */
#define SIOCADDDLCI 0x8980 /* Create new DLCI device */
#define SIOCDELDLCI 0x8981 /* Delete DLCI device */
/* Device private ioctl calls. */
/* These 16 ioctls are available to devices via the do_ioctl() device
vector. Each device should include this file and redefine these
names as their own. Because these are device dependent it is a good
idea _NOT_ to issue them to random objects and hope. */
#define SIOCDEVPRIVATE 0x89F0 /* to 89FF */
/*
* These 16 ioctl calls are protocol private
*/
#define SIOCPROTOPRIVATE 0x89E0 /* to 89EF */
#endif // defined( WIN32 )
#endif // __TUNTAP_H_
|
