More generic handling of tap device under Windows.
This commit is contained in:
Guus Sliepen
parent
83263b7446
commit
c15e8a96bf
2 changed files with 516 additions and 607 deletions
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@ -1,303 +1,291 @@
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/*
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/*
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device.c -- Interaction with CIPE driver in a Cygwin environment
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device.c -- Interaction with CIPE driver in a Cygwin environment
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Copyright (C) 2002-2003 Ivo Timmermans <ivo@o2w.nl>,
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Copyright (C) 2002-2003 Ivo Timmermans <ivo@o2w.nl>,
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2002-2003 Guus Sliepen <guus@sliepen.eu.org>
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2002-2003 Guus Sliepen <guus@sliepen.eu.org>
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This program is free software; you can redistribute it and/or modify
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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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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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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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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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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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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$Id: device.c,v 1.1.2.10 2003/07/22 20:55:20 guus Exp $
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$Id: device.c,v 1.1.2.11 2003/07/28 21:54:03 guus Exp $
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*/
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*/
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#include "system.h"
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#include "system.h"
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#include <w32api/windows.h>
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#include <w32api/windows.h>
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#include <w32api/winioctl.h>
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#include <w32api/winioctl.h>
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#include "conf.h"
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#include "conf.h"
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#include "logger.h"
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#include "logger.h"
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#include "net.h"
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#include "net.h"
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#include "route.h"
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#include "route.h"
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#include "utils.h"
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#include "utils.h"
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#include "xalloc.h"
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#include "xalloc.h"
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/* Definitions from CIPE */
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#define NETCARD_REG_KEY_2000 "SYSTEM\\CurrentControlSet\\Control\\Class\\{4D36E972-E325-11CE-BFC1-08002BE10318}"
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#define NETCARD_REG_KEY "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\NetworkCards"
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#define NETCARD_REG_KEY_2000 "SYSTEM\\CurrentControlSet\\Control\\Class\\{4D36E972-E325-11CE-BFC1-08002BE10318}"
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#define REG_SERVICE_KEY "SYSTEM\\CurrentControlSet\\Services"
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#define NETCARD_REG_KEY "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\NetworkCards"
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#define REG_CONTROL_NET "SYSTEM\\CurrentControlSet\\Control\\Network\\{4D36E972-E325-11CE-BFC1-08002BE10318}"
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#define REG_SERVICE_KEY "SYSTEM\\CurrentControlSet\\Services"
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#define USERMODEDEVICEDIR "\\\\.\\"
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#define USERMODEDEVICEDIR "\\\\.\\"
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#define SYSDEVICEDIR "\\Device\\"
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#define SYSDEVICEDIR "\\Device\\"
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#define USERDEVICEDIR "\\??\\"
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#define USERDEVICEDIR "\\??\\"
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#define TAPSUFFIX ".tap"
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#define TAPSUFFIX ".tap"
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#define TAP_CONTROL_CODE(request,method) CTL_CODE(FILE_DEVICE_PHYSICAL_NETCARD | 8000, request, method, FILE_ANY_ACCESS)
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#define PRODUCT_STRING "DKW Heavy Industries VPN Adapter."
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#define CIPE_SERVICE_NAME "CIPE_Daemon"
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#define TAP_IOCTL_GET_LASTMAC TAP_CONTROL_CODE(0, METHOD_BUFFERED)
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#define CIPE_DRIVER_NAME "CIPE"
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#define TAP_IOCTL_GET_MAC TAP_CONTROL_CODE(1, METHOD_BUFFERED)
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#define TAP_IOCTL_SET_STATISTICS TAP_CONTROL_CODE(2, METHOD_BUFFERED)
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#define CIPE_NDIS_MAJOR_VERSION 4
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#define CIPE_NDIS_MINOR_VERSION 0
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/* FIXME: This only works for Windows 2000 */
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#define OSTYPE 5
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#ifndef CIPE_DRIVER_MAJOR_VERSION
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# define CIPE_DRIVER_MAJOR_VERSION 2
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int device_fd = -1;
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#endif
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char *device = NULL;
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char *iface = NULL;
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#ifndef CIPE_DRIVER_MINOR_VERSION
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char *device_info = NULL;
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# define CIPE_DRIVER_MINOR_VERSION 1
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#endif
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int device_total_in = 0;
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int device_total_out = 0;
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#ifndef CIPE_MAC_ROOT_ADDRESS
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# define CIPE_MAC_ROOT_ADDRESS "8:0:58:0:0:1"
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HANDLE handle;
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#endif
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pid_t reader_pid;
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#define CIPE_CONTROL_CODE(request,method) CTL_CODE (FILE_DEVICE_PHYSICAL_NETCARD | 8000, request, method, FILE_ANY_ACCESS)
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int sp[2];
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#define CIPE_IOCTL_GET_LASTMAC CIPE_CONTROL_CODE (0, METHOD_BUFFERED)
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bool setup_device(void)
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#define CIPE_IOCTL_GET_MAC CIPE_CONTROL_CODE (1, METHOD_BUFFERED)
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{
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#define CIPE_IOCTL_SET_STATISTICS CIPE_CONTROL_CODE (2, METHOD_BUFFERED)
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HKEY key, key2;
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int i;
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/* Windows 2000 */
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#define OSTYPE 5
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char regpath[1024];
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char adapterid[1024];
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int device_fd = -1;
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char adaptername[1024];
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char *device = NULL;
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char tapname[1024];
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char *iface = NULL;
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char gelukt = 0;
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char *device_info = NULL;
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long len;
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int device_total_in = 0;
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bool found = false;
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int device_total_out = 0;
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cp();
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HANDLE handle;
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get_config_string(lookup_config(config_tree, "Device"), &device);
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pid_t reader_pid;
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get_config_string(lookup_config(config_tree, "Interface"), &iface);
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int sp[2];
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/* Open registry and look for network adapters */
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bool setup_device(void)
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{
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if(RegOpenKeyEx(HKEY_LOCAL_MACHINE, REG_CONTROL_NET, 0, KEY_READ, &key)) {
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HKEY key, key2, adapterkey;
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logger(LOG_ERR, _("Unable to read registry"));
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int i;
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return false;
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}
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char adapterid[1024];
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char manufacturer[1024];
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for (i = 0; ; i++) {
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char productname[1024];
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len = sizeof(adapterid);
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char adaptername[1024];
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if(RegEnumKeyEx(key, i, adapterid, &len, 0, 0, 0, NULL))
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char tapname[1024];
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break;
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char gelukt = 0;
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long len;
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if(device) {
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if(!strcmp(device, adapterid)) {
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FILETIME filetime;
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found = true;
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bool found = false;
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break;
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} else
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cp();
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continue;
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}
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get_config_string(lookup_config(config_tree, "Device"), &device);
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/* Find out more about this adapter */
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/* Open registry and look for network adapters */
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snprintf(regpath, sizeof(regpath), "%s\\%s\\Connection", REG_CONTROL_NET, adapterid);
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if (RegOpenKeyEx (HKEY_LOCAL_MACHINE, (OSTYPE > 4 ? NETCARD_REG_KEY_2000 : NETCARD_REG_KEY), 0, KEY_READ, &key)) {
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logger(LOG_ERR, _("Unable to read registry"));
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if(RegOpenKeyEx(HKEY_LOCAL_MACHINE, regpath, 0, KEY_READ, &key2)) {
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return false;
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logger(LOG_ERR, _("Unable to read registry"));
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}
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return false;
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}
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for (i = 0; ; i++) {
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len = sizeof(adapterid);
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len = sizeof(adaptername);
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if(RegEnumKeyEx (key, i, adapterid, &len, 0, 0, 0, &filetime))
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RegQueryValueEx(key2, "Name", 0, 0, adaptername, &len);
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break;
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if(iface) {
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/* Find out more about this adapter */
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if(!strcmp(iface, adaptername)) {
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found = true;
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if(RegOpenKeyEx (key, adapterid, 0, KEY_READ, &adapterkey)) {
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break;
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logger(LOG_ERR, _("Unable to read registry"));
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} else
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return false;
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continue;
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}
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}
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len = sizeof(productname);
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snprintf(tapname, sizeof(tapname), USERMODEDEVICEDIR "%s" TAPSUFFIX, adapterid);
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if(RegQueryValueEx(adapterkey, "ProductName", 0, 0, productname, &len))
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handle = CreateFile(tapname, GENERIC_WRITE | GENERIC_READ, 0, 0, OPEN_EXISTING, FILE_ATTRIBUTE_SYSTEM, 0);
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goto skip;
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if(handle != INVALID_HANDLE_VALUE) {
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CloseHandle(handle);
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len = sizeof(manufacturer);
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found = true;
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if(RegQueryValueEx(adapterkey, "Manufacturer", 0, 0, manufacturer, &len))
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break;
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goto skip;
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}
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}
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if(!strcmp(productname, "CIPE") && !strcmp(manufacturer, "DKWHeavyIndustries")) {
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if(device && strcmp(adapterid, device))
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if(!found) {
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continue;
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logger(LOG_ERR, _("No Windows tap device found!"));
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if(!device)
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return false;
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device = xstrdup(adapterid);
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}
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found = true;
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break;
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device = adapterid;
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}
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iface = adaptername;
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skip:
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snprintf(tapname, sizeof(tapname), USERMODEDEVICEDIR "%s" TAPSUFFIX, device);
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RegCloseKey (adapterkey);
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}
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/* Now we are going to open this device twice: once for reading and once for writing.
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We do this because apparently it isn't possible to check for activity in the select() loop.
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if(!found) {
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Furthermore I don't really know how to do it the "Windows" way. */
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logger(LOG_ERR, _("No CIPE adapters found!"));
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return false;
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if(socketpair(AF_UNIX, SOCK_DGRAM, PF_UNIX, sp)) {
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}
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logger(LOG_DEBUG, _("System call `%s' failed: %s"), "socketpair", strerror(errno));
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return false;
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/* Get adapter name */
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}
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len = sizeof(adaptername);
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/* The parent opens the tap device for writing. */
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RegQueryValueEx(adapterkey, (OSTYPE > 4 ? "NetCfgInstanceId" : "ServiceName"), 0, 0, adaptername, &len);
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handle = CreateFile(tapname, GENERIC_WRITE, FILE_SHARE_READ, 0, OPEN_EXISTING, FILE_ATTRIBUTE_SYSTEM , 0);
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/* FIXME? cipsrvr checks if the device is in use at this point */
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if(handle == INVALID_HANDLE_VALUE) {
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/* Try to open the corresponding tap device */
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logger(LOG_ERR, _("Could not open CIPE tap device for writing!"));
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return false;
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snprintf(tapname, sizeof(tapname), USERMODEDEVICEDIR "%s" TAPSUFFIX, adaptername);
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}
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/* Now we are going to open this device twice: once for reading and once for writing.
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device_fd = sp[0];
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We do this because apparently it isn't possible to check for activity in the select() loop.
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Furthermore I don't really know how to do it the "Windows" way. */
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/* Get MAC address from tap device */
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if(socketpair(AF_UNIX, SOCK_DGRAM, PF_UNIX, sp)) {
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if(DeviceIoControl(device_fd, TAP_IOCTL_GET_MAC, mymac.x, sizeof(mymac.x), mymac.x, sizeof(mymac.x), &len, 0)) {
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logger(LOG_DEBUG, _("System call `%s' failed: %s"), "socketpair", strerror(errno));
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logger(LOG_ERR, _("Could not get MAC address from Windows tap device!"));
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return false;
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return false;
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}
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}
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reader_pid = fork();
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if(routing_mode == RMODE_ROUTER) {
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overwrite_mac = 1;
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if(reader_pid == -1) {
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}
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logger(LOG_DEBUG, _("System call `%s' failed: %s"), "fork", strerror(errno));
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return false;
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/* Now we start the child */
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}
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reader_pid = fork();
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if(!reader_pid) {
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/* The child opens the tap device for reading, blocking.
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if(reader_pid == -1) {
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It passes everything it reads to the socket. */
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logger(LOG_DEBUG, _("System call `%s' failed: %s"), "fork", strerror(errno));
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return false;
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char buf[MTU];
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}
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int lenin;
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if(!reader_pid) {
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handle = CreateFile(tapname, GENERIC_READ, FILE_SHARE_WRITE, 0, OPEN_EXISTING, FILE_ATTRIBUTE_SYSTEM , 0);
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/* The child opens the tap device for reading, blocking.
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It passes everything it reads to the socket. */
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if(handle == INVALID_HANDLE_VALUE) {
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logger(LOG_ERR, _("Could not open CIPE tap device for reading!"));
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char buf[MTU];
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buf[0] = 0;
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int lenin;
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write(sp[1], buf, 1);
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exit(1);
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handle = CreateFile(tapname, GENERIC_READ, FILE_SHARE_WRITE, 0, OPEN_EXISTING, FILE_ATTRIBUTE_SYSTEM , 0);
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}
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if(handle == INVALID_HANDLE_VALUE) {
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logger(LOG_DEBUG, _("Tap reader forked and running."));
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logger(LOG_ERR, _("Could not open CIPE tap device for reading!"));
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buf[0] = 0;
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/* Notify success */
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write(sp[1], buf, 1);
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exit(1);
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buf[0] = 1;
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}
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write(sp[1], buf, 1);
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logger(LOG_DEBUG, _("Tap reader forked and running."));
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/* Pass packets */
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/* Notify success */
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for(;;) {
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ReadFile (handle, buf, MTU, &lenin, NULL);
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buf[0] = 1;
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write(sp[1], buf, lenin);
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write(sp[1], buf, 1);
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}
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}
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/* Pass packets */
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/* The parent opens the tap device for writing. */
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for(;;) {
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ReadFile (handle, buf, MTU, &lenin, NULL);
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handle = CreateFile(tapname, GENERIC_WRITE, FILE_SHARE_READ, 0, OPEN_EXISTING, FILE_ATTRIBUTE_SYSTEM , 0);
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write(sp[1], buf, lenin);
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}
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if(handle == INVALID_HANDLE_VALUE) {
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}
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logger(LOG_ERR, _("Could not open CIPE tap device for writing!"));
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return false;
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read(device_fd, &gelukt, 1);
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}
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if(gelukt != 1) {
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logger(LOG_DEBUG, "Tap reader failed!");
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device_fd = sp[0];
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return false;
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}
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/* Get MAC address from tap device */
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if(!get_config_string(lookup_config(config_tree, "Interface"), &iface))
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if(routing_mode == RMODE_ROUTER) {
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iface = device;
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DeviceIoControl (handle, CIPE_IOCTL_GET_MAC, mymac.x, sizeof(mymac.x), mymac.x, sizeof(mymac.x), &len, 0);
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overwrite_mac = 1;
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device_info = _("Windows tap device");
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}
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logger(LOG_INFO, _("%s (%s) is a %s"), device, iface, device_info);
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read(device_fd, &gelukt, 1);
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if(gelukt != 1) {
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return false;
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logger(LOG_DEBUG, "Tap reader failed!");
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}
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return false;
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}
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void close_device(void)
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{
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if(!get_config_string(lookup_config(config_tree, "Interface"), &iface))
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cp();
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iface = device;
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close(sp[0]);
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device_info = _("Cygwin CIPE device");
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close(sp[1]);
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CloseHandle(handle);
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logger(LOG_INFO, _("%s is a %s"), device, device_info);
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kill(reader_pid, SIGKILL);
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return false;
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}
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}
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bool read_packet(vpn_packet_t *packet)
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void close_device(void)
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{
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{
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int lenin;
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cp();
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cp();
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close(sp[0]);
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close(sp[1]);
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if((lenin = read(sp[0], packet->data, MTU)) <= 0) {
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CloseHandle(handle);
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logger(LOG_ERR, _("Error while reading from %s %s: %s"), device_info,
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device, strerror(errno));
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kill(reader_pid, SIGKILL);
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return false;
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}
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}
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bool read_packet(vpn_packet_t *packet)
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packet->len = lenin;
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{
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int lenin;
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device_total_in += packet->len;
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cp();
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ifdebug(TRAFFIC) logger(LOG_DEBUG, _("Read packet of %d bytes from %s"), packet->len,
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device_info);
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if((lenin = read(sp[0], packet->data, MTU)) <= 0) {
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logger(LOG_ERR, _("Error while reading from %s %s: %s"), device_info,
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return true;
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device, strerror(errno));
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}
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return false;
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}
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bool write_packet(vpn_packet_t *packet)
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{
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packet->len = lenin;
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int lenout;
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device_total_in += packet->len;
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cp();
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ifdebug(TRAFFIC) logger(LOG_DEBUG, _("Read packet of %d bytes from %s"), packet->len,
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ifdebug(TRAFFIC) logger(LOG_DEBUG, _("Writing packet of %d bytes to %s"),
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device_info);
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packet->len, device_info);
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return true;
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if(!WriteFile (handle, packet->data, packet->len, &lenout, NULL)) {
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}
|
logger(LOG_ERR, "Error while writing to %s %s", device_info, device);
|
||||||
|
return false;
|
||||||
bool write_packet(vpn_packet_t *packet)
|
}
|
||||||
{
|
|
||||||
int lenout;
|
device_total_out += packet->len;
|
||||||
|
|
||||||
cp();
|
return true;
|
||||||
|
}
|
||||||
ifdebug(TRAFFIC) logger(LOG_DEBUG, _("Writing packet of %d bytes to %s"),
|
|
||||||
packet->len, device_info);
|
void dump_device_stats(void)
|
||||||
|
{
|
||||||
if(!WriteFile (handle, packet->data, packet->len, &lenout, NULL)) {
|
cp();
|
||||||
logger(LOG_ERR, "Error while writing to %s %s", device_info, device);
|
|
||||||
return false;
|
logger(LOG_DEBUG, _("Statistics for %s %s:"), device_info, device);
|
||||||
}
|
logger(LOG_DEBUG, _(" total bytes in: %10d"), device_total_in);
|
||||||
|
logger(LOG_DEBUG, _(" total bytes out: %10d"), device_total_out);
|
||||||
device_total_out += packet->len;
|
}
|
||||||
|
|
||||||
return true;
|
|
||||||
}
|
|
||||||
|
|
||||||
void dump_device_stats(void)
|
|
||||||
{
|
|
||||||
cp();
|
|
||||||
|
|
||||||
logger(LOG_DEBUG, _("Statistics for %s %s:"), device_info, device);
|
|
||||||
logger(LOG_DEBUG, _(" total bytes in: %10d"), device_total_in);
|
|
||||||
logger(LOG_DEBUG, _(" total bytes out: %10d"), device_total_out);
|
|
||||||
}
|
|
||||||
|
|
|
||||||
|
|
@ -1,304 +1,225 @@
|
||||||
/*
|
/*
|
||||||
device.c -- Interaction with CIPE driver in a MinGW environment
|
device.c -- Interaction with CIPE driver in a MinGW environment
|
||||||
Copyright (C) 2002-2003 Ivo Timmermans <ivo@o2w.nl>,
|
Copyright (C) 2002-2003 Ivo Timmermans <ivo@o2w.nl>,
|
||||||
2002-2003 Guus Sliepen <guus@sliepen.eu.org>
|
2002-2003 Guus Sliepen <guus@sliepen.eu.org>
|
||||||
|
|
||||||
This program is free software; you can redistribute it and/or modify
|
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
|
it under the terms of the GNU General Public License as published by
|
||||||
the Free Software Foundation; either version 2 of the License, or
|
the Free Software Foundation; either version 2 of the License, or
|
||||||
(at your option) any later version.
|
(at your option) any later version.
|
||||||
|
|
||||||
This program is distributed in the hope that it will be useful,
|
This program is distributed in the hope that it will be useful,
|
||||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
GNU General Public License for more details.
|
GNU General Public License for more details.
|
||||||
|
|
||||||
You should have received a copy of the GNU General Public License
|
You should have received a copy of the GNU General Public License
|
||||||
along with this program; if not, write to the Free Software
|
along with this program; if not, write to the Free Software
|
||||||
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||||
|
|
||||||
$Id: device.c,v 1.1.2.2 2003/07/22 20:55:21 guus Exp $
|
$Id: device.c,v 1.1.2.3 2003/07/28 21:54:03 guus Exp $
|
||||||
*/
|
*/
|
||||||
|
|
||||||
#error "Device driver for MinGW environment not written yet!"
|
#include "system.h"
|
||||||
|
|
||||||
#include "system.h"
|
#include <windows.h>
|
||||||
|
#include <winioctl.h>
|
||||||
#include <winioctl.h>
|
|
||||||
|
#include "conf.h"
|
||||||
#include "conf.h"
|
#include "logger.h"
|
||||||
#include "logger.h"
|
#include "net.h"
|
||||||
#include "net.h"
|
#include "route.h"
|
||||||
#include "route.h"
|
#include "utils.h"
|
||||||
#include "utils.h"
|
#include "xalloc.h"
|
||||||
#include "xalloc.h"
|
|
||||||
|
#define NETCARD_REG_KEY_2000 "SYSTEM\\CurrentControlSet\\Control\\Class\\{4D36E972-E325-11CE-BFC1-08002BE10318}"
|
||||||
/* Definitions from CIPE */
|
#define NETCARD_REG_KEY "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\NetworkCards"
|
||||||
|
#define REG_SERVICE_KEY "SYSTEM\\CurrentControlSet\\Services"
|
||||||
#define NETCARD_REG_KEY_2000 "SYSTEM\\CurrentControlSet\\Control\\Class\\{4D36E972-E325-11CE-BFC1-08002BE10318}"
|
#define REG_CONTROL_NET "SYSTEM\\CurrentControlSet\\Control\\Network\\{4D36E972-E325-11CE-BFC1-08002BE10318}"
|
||||||
#define NETCARD_REG_KEY "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\NetworkCards"
|
|
||||||
#define REG_SERVICE_KEY "SYSTEM\\CurrentControlSet\\Services"
|
#define USERMODEDEVICEDIR "\\\\.\\"
|
||||||
|
#define SYSDEVICEDIR "\\Device\\"
|
||||||
#define USERMODEDEVICEDIR "\\\\.\\"
|
#define USERDEVICEDIR "\\??\\"
|
||||||
#define SYSDEVICEDIR "\\Device\\"
|
#define TAPSUFFIX ".tap"
|
||||||
#define USERDEVICEDIR "\\??\\"
|
|
||||||
#define TAPSUFFIX ".tap"
|
#define TAP_CONTROL_CODE(request,method) CTL_CODE(FILE_DEVICE_PHYSICAL_NETCARD | 8000, request, method, FILE_ANY_ACCESS)
|
||||||
|
|
||||||
#define PRODUCT_STRING "DKW Heavy Industries VPN Adapter."
|
#define TAP_IOCTL_GET_LASTMAC TAP_CONTROL_CODE(0, METHOD_BUFFERED)
|
||||||
#define CIPE_SERVICE_NAME "CIPE_Daemon"
|
#define TAP_IOCTL_GET_MAC TAP_CONTROL_CODE(1, METHOD_BUFFERED)
|
||||||
#define CIPE_DRIVER_NAME "CIPE"
|
#define TAP_IOCTL_SET_STATISTICS TAP_CONTROL_CODE(2, METHOD_BUFFERED)
|
||||||
|
|
||||||
#define CIPE_NDIS_MAJOR_VERSION 4
|
/* FIXME: This only works for Windows 2000 */
|
||||||
#define CIPE_NDIS_MINOR_VERSION 0
|
#define OSTYPE 5
|
||||||
|
|
||||||
#ifndef CIPE_DRIVER_MAJOR_VERSION
|
HANDLE device_fd = INVALID_HANDLE_VALUE;
|
||||||
# define CIPE_DRIVER_MAJOR_VERSION 2
|
char *device = NULL;
|
||||||
#endif
|
char *iface = NULL;
|
||||||
|
char *device_info = NULL;
|
||||||
#ifndef CIPE_DRIVER_MINOR_VERSION
|
|
||||||
# define CIPE_DRIVER_MINOR_VERSION 1
|
int device_total_in = 0;
|
||||||
#endif
|
int device_total_out = 0;
|
||||||
|
|
||||||
#ifndef CIPE_MAC_ROOT_ADDRESS
|
bool setup_device(void)
|
||||||
# define CIPE_MAC_ROOT_ADDRESS "8:0:58:0:0:1"
|
{
|
||||||
#endif
|
HKEY key, key2;
|
||||||
|
int i;
|
||||||
#define CIPE_CONTROL_CODE(request,method) CTL_CODE (FILE_DEVICE_PHYSICAL_NETCARD | 8000, request, method, FILE_ANY_ACCESS)
|
|
||||||
|
char regpath[1024];
|
||||||
#define CIPE_IOCTL_GET_LASTMAC CIPE_CONTROL_CODE (0, METHOD_BUFFERED)
|
char adapterid[1024];
|
||||||
#define CIPE_IOCTL_GET_MAC CIPE_CONTROL_CODE (1, METHOD_BUFFERED)
|
char adaptername[1024];
|
||||||
#define CIPE_IOCTL_SET_STATISTICS CIPE_CONTROL_CODE (2, METHOD_BUFFERED)
|
char tapname[1024];
|
||||||
|
char gelukt = 0;
|
||||||
/* Windows 2000 */
|
long len;
|
||||||
#define OSTYPE 5
|
|
||||||
|
bool found = false;
|
||||||
int device_fd = -1;
|
|
||||||
char *device = NULL;
|
cp();
|
||||||
char *iface = NULL;
|
|
||||||
char *device_info = NULL;
|
get_config_string(lookup_config(config_tree, "Device"), &device);
|
||||||
|
get_config_string(lookup_config(config_tree, "Interface"), &iface);
|
||||||
int device_total_in = 0;
|
|
||||||
int device_total_out = 0;
|
/* Open registry and look for network adapters */
|
||||||
|
|
||||||
HANDLE handle;
|
if(RegOpenKeyEx(HKEY_LOCAL_MACHINE, REG_CONTROL_NET, 0, KEY_READ, &key)) {
|
||||||
|
logger(LOG_ERR, _("Unable to read registry"));
|
||||||
pid_t reader_pid;
|
return false;
|
||||||
int sp[2];
|
}
|
||||||
|
|
||||||
bool setup_device(void)
|
for (i = 0; ; i++) {
|
||||||
{
|
len = sizeof(adapterid);
|
||||||
HKEY key, key2, adapterkey;
|
if(RegEnumKeyEx(key, i, adapterid, &len, 0, 0, 0, NULL))
|
||||||
int i;
|
break;
|
||||||
|
|
||||||
char adapterid[1024];
|
if(device) {
|
||||||
char manufacturer[1024];
|
if(!strcmp(device, adapterid)) {
|
||||||
char productname[1024];
|
found = true;
|
||||||
char adaptername[1024];
|
break;
|
||||||
char tapname[1024];
|
} else
|
||||||
char gelukt = 0;
|
continue;
|
||||||
long len;
|
}
|
||||||
|
|
||||||
FILETIME filetime;
|
/* Find out more about this adapter */
|
||||||
bool found = false;
|
|
||||||
|
snprintf(regpath, sizeof(regpath), "%s\\%s\\Connection", REG_CONTROL_NET, adapterid);
|
||||||
cp();
|
|
||||||
|
if(RegOpenKeyEx(HKEY_LOCAL_MACHINE, regpath, 0, KEY_READ, &key2)) {
|
||||||
get_config_string(lookup_config(config_tree, "Device"), &device);
|
logger(LOG_ERR, _("Unable to read registry"));
|
||||||
|
return false;
|
||||||
/* Open registry and look for network adapters */
|
}
|
||||||
|
|
||||||
if (RegOpenKeyEx (HKEY_LOCAL_MACHINE, (OSTYPE > 4 ? NETCARD_REG_KEY_2000 : NETCARD_REG_KEY), 0, KEY_READ, &key)) {
|
len = sizeof(adaptername);
|
||||||
logger(LOG_ERR, _("Unable to read registry"));
|
RegQueryValueEx(key2, "Name", 0, 0, adaptername, &len);
|
||||||
return false;
|
|
||||||
}
|
if(iface) {
|
||||||
|
if(!strcmp(iface, adaptername)) {
|
||||||
for (i = 0; ; i++) {
|
found = true;
|
||||||
len = sizeof(adapterid);
|
break;
|
||||||
if(RegEnumKeyEx (key, i, adapterid, &len, 0, 0, 0, &filetime))
|
} else
|
||||||
break;
|
continue;
|
||||||
|
}
|
||||||
/* Find out more about this adapter */
|
|
||||||
|
snprintf(tapname, sizeof(tapname), USERMODEDEVICEDIR "%s" TAPSUFFIX, adapterid);
|
||||||
if(RegOpenKeyEx (key, adapterid, 0, KEY_READ, &adapterkey)) {
|
device_fd = CreateFile(tapname, GENERIC_WRITE | GENERIC_READ, 0, 0, OPEN_EXISTING, FILE_ATTRIBUTE_SYSTEM, 0);
|
||||||
logger(LOG_ERR, _("Unable to read registry"));
|
if(device_fd != INVALID_HANDLE_VALUE) {
|
||||||
return false;
|
found = true;
|
||||||
}
|
break;
|
||||||
|
}
|
||||||
len = sizeof(productname);
|
}
|
||||||
if(RegQueryValueEx(adapterkey, "ProductName", 0, 0, productname, &len))
|
|
||||||
goto skip;
|
if(!found) {
|
||||||
|
logger(LOG_ERR, _("No Windows tap device found!"));
|
||||||
len = sizeof(manufacturer);
|
return false;
|
||||||
if(RegQueryValueEx(adapterkey, "Manufacturer", 0, 0, manufacturer, &len))
|
}
|
||||||
goto skip;
|
|
||||||
|
device = adapterid;
|
||||||
if(!strcmp(productname, "CIPE") && !strcmp(manufacturer, "DKWHeavyIndustries")) {
|
iface = adaptername;
|
||||||
if(device && strcmp(adapterid, device))
|
|
||||||
continue;
|
/* Try to open the corresponding tap device */
|
||||||
if(!device)
|
|
||||||
device = xstrdup(adapterid);
|
if(device_fd == INVALID_HANDLE_VALUE) {
|
||||||
found = true;
|
snprintf(tapname, sizeof(tapname), USERMODEDEVICEDIR "%s" TAPSUFFIX, device);
|
||||||
break;
|
device_fd = CreateFile(tapname, GENERIC_WRITE | GENERIC_READ, 0, 0, OPEN_EXISTING, FILE_ATTRIBUTE_SYSTEM, 0);
|
||||||
}
|
}
|
||||||
|
|
||||||
skip:
|
if(device_fd == INVALID_HANDLE_VALUE) {
|
||||||
RegCloseKey (adapterkey);
|
logger(LOG_ERR, _("%s (%s) is no a usable Windows tap device!"), device, iface);
|
||||||
}
|
return false;
|
||||||
|
}
|
||||||
if(!found) {
|
|
||||||
logger(LOG_ERR, _("No CIPE adapters found!"));
|
/* Get MAC address from tap device */
|
||||||
return false;
|
|
||||||
}
|
if(DeviceIoControl(device_fd, TAP_IOCTL_GET_MAC, mymac.x, sizeof(mymac.x), mymac.x, sizeof(mymac.x), &len, 0)) {
|
||||||
|
logger(LOG_ERR, _("Could not get MAC address from Windows tap device!"));
|
||||||
/* Get adapter name */
|
return false;
|
||||||
|
}
|
||||||
len = sizeof(adaptername);
|
|
||||||
RegQueryValueEx(adapterkey, (OSTYPE > 4 ? "NetCfgInstanceId" : "ServiceName"), 0, 0, adaptername, &len);
|
if(routing_mode == RMODE_ROUTER) {
|
||||||
|
overwrite_mac = 1;
|
||||||
/* FIXME? cipsrvr checks if the device is in use at this point */
|
}
|
||||||
|
|
||||||
/* Try to open the corresponding tap device */
|
if(!get_config_string(lookup_config(config_tree, "Interface"), &iface))
|
||||||
|
iface = device;
|
||||||
snprintf(tapname, sizeof(tapname), USERMODEDEVICEDIR "%s" TAPSUFFIX, adaptername);
|
|
||||||
|
device_info = _("Windows tap device");
|
||||||
/* Now we are going to open this device twice: once for reading and once for writing.
|
|
||||||
We do this because apparently it isn't possible to check for activity in the select() loop.
|
logger(LOG_INFO, _("%s (%s) is a %s"), device, iface, device_info);
|
||||||
Furthermore I don't really know how to do it the "Windows" way. */
|
|
||||||
|
return true;
|
||||||
if(socketpair(AF_UNIX, SOCK_DGRAM, PF_UNIX, sp)) {
|
}
|
||||||
logger(LOG_DEBUG, _("System call `%s' failed: %s"), "socketpair", strerror(errno));
|
|
||||||
return false;
|
void close_device(void)
|
||||||
}
|
{
|
||||||
|
cp();
|
||||||
reader_pid = fork();
|
|
||||||
|
CloseHandle(device_fd);
|
||||||
if(reader_pid == -1) {
|
}
|
||||||
logger(LOG_DEBUG, _("System call `%s' failed: %s"), "fork", strerror(errno));
|
|
||||||
return false;
|
bool read_packet(vpn_packet_t *packet)
|
||||||
}
|
{
|
||||||
|
int lenin;
|
||||||
if(!reader_pid) {
|
|
||||||
/* The child opens the tap device for reading, blocking.
|
cp();
|
||||||
It passes everything it reads to the socket. */
|
|
||||||
|
if(!ReadFile(device_fd, packet->data, MTU, &lenin, NULL)) {
|
||||||
char buf[MTU];
|
logger(LOG_ERR, _("Error while reading from %s %s: %s"), device_info,
|
||||||
int lenin;
|
device, strerror(errno));
|
||||||
|
return false;
|
||||||
handle = CreateFile(tapname, GENERIC_READ, FILE_SHARE_WRITE, 0, OPEN_EXISTING, FILE_ATTRIBUTE_SYSTEM , 0);
|
}
|
||||||
|
|
||||||
if(handle == INVALID_HANDLE_VALUE) {
|
packet->len = lenin;
|
||||||
logger(LOG_ERR, _("Could not open CIPE tap device for reading!"));
|
|
||||||
buf[0] = 0;
|
device_total_in += packet->len;
|
||||||
write(sp[1], buf, 1);
|
|
||||||
exit(1);
|
ifdebug(TRAFFIC) logger(LOG_DEBUG, _("Read packet of %d bytes from %s"), packet->len,
|
||||||
}
|
device_info);
|
||||||
|
|
||||||
logger(LOG_DEBUG, _("Tap reader forked and running."));
|
return true;
|
||||||
|
}
|
||||||
/* Notify success */
|
|
||||||
|
bool write_packet(vpn_packet_t *packet)
|
||||||
buf[0] = 1;
|
{
|
||||||
write(sp[1], buf, 1);
|
int lenout;
|
||||||
|
|
||||||
/* Pass packets */
|
cp();
|
||||||
|
|
||||||
for(;;) {
|
ifdebug(TRAFFIC) logger(LOG_DEBUG, _("Writing packet of %d bytes to %s"),
|
||||||
ReadFile (handle, buf, MTU, &lenin, NULL);
|
packet->len, device_info);
|
||||||
write(sp[1], buf, lenin);
|
|
||||||
}
|
if(!WriteFile(device_fd, packet->data, packet->len, &lenout, NULL)) {
|
||||||
}
|
logger(LOG_ERR, "Error while writing to %s %s", device_info, device);
|
||||||
|
return false;
|
||||||
/* The parent opens the tap device for writing. */
|
}
|
||||||
|
|
||||||
handle = CreateFile(tapname, GENERIC_WRITE, FILE_SHARE_READ, 0, OPEN_EXISTING, FILE_ATTRIBUTE_SYSTEM , 0);
|
device_total_out += packet->len;
|
||||||
|
|
||||||
if(handle == INVALID_HANDLE_VALUE) {
|
return true;
|
||||||
logger(LOG_ERR, _("Could not open CIPE tap device for writing!"));
|
}
|
||||||
return false;
|
|
||||||
}
|
void dump_device_stats(void)
|
||||||
|
{
|
||||||
device_fd = sp[0];
|
cp();
|
||||||
|
|
||||||
/* Get MAC address from tap device */
|
logger(LOG_DEBUG, _("Statistics for %s %s:"), device_info, device);
|
||||||
|
logger(LOG_DEBUG, _(" total bytes in: %10d"), device_total_in);
|
||||||
if(routing_mode == RMODE_ROUTER) {
|
logger(LOG_DEBUG, _(" total bytes out: %10d"), device_total_out);
|
||||||
DeviceIoControl (handle, CIPE_IOCTL_GET_MAC, mymac.x, sizeof(mymac.x), mymac.x, sizeof(mymac.x), &len, 0);
|
}
|
||||||
overwrite_mac = 1;
|
|
||||||
}
|
|
||||||
|
|
||||||
read(device_fd, &gelukt, 1);
|
|
||||||
if(gelukt != 1) {
|
|
||||||
logger(LOG_DEBUG, "Tap reader failed!");
|
|
||||||
return false;
|
|
||||||
}
|
|
||||||
|
|
||||||
if(!get_config_string(lookup_config(config_tree, "Interface"), &iface))
|
|
||||||
iface = device;
|
|
||||||
|
|
||||||
device_info = _("Cygwin CIPE device");
|
|
||||||
|
|
||||||
logger(LOG_INFO, _("%s is a %s"), device, device_info);
|
|
||||||
|
|
||||||
return true;
|
|
||||||
}
|
|
||||||
|
|
||||||
void close_device(void)
|
|
||||||
{
|
|
||||||
cp();
|
|
||||||
|
|
||||||
close(sp[0]);
|
|
||||||
close(sp[1]);
|
|
||||||
CloseHandle(handle);
|
|
||||||
|
|
||||||
kill(reader_pid, SIGKILL);
|
|
||||||
}
|
|
||||||
|
|
||||||
bool read_packet(vpn_packet_t *packet)
|
|
||||||
{
|
|
||||||
int lenin;
|
|
||||||
|
|
||||||
cp();
|
|
||||||
|
|
||||||
if((lenin = read(sp[0], packet->data, MTU)) <= 0) {
|
|
||||||
logger(LOG_ERR, _("Error while reading from %s %s: %s"), device_info,
|
|
||||||
device, strerror(errno));
|
|
||||||
return false;
|
|
||||||
}
|
|
||||||
|
|
||||||
packet->len = lenin;
|
|
||||||
|
|
||||||
device_total_in += packet->len;
|
|
||||||
|
|
||||||
ifdebug(TRAFFIC) logger(LOG_DEBUG, _("Read packet of %d bytes from %s"), packet->len,
|
|
||||||
device_info);
|
|
||||||
|
|
||||||
return true;
|
|
||||||
}
|
|
||||||
|
|
||||||
bool write_packet(vpn_packet_t *packet)
|
|
||||||
{
|
|
||||||
int lenout;
|
|
||||||
|
|
||||||
cp();
|
|
||||||
|
|
||||||
ifdebug(TRAFFIC) logger(LOG_DEBUG, _("Writing packet of %d bytes to %s"),
|
|
||||||
packet->len, device_info);
|
|
||||||
|
|
||||||
if(!WriteFile (handle, packet->data, packet->len, &lenout, NULL)) {
|
|
||||||
logger(LOG_ERR, "Error while writing to %s %s", device_info, device);
|
|
||||||
return false;
|
|
||||||
}
|
|
||||||
|
|
||||||
device_total_out += packet->len;
|
|
||||||
|
|
||||||
return true;
|
|
||||||
}
|
|
||||||
|
|
||||||
void dump_device_stats(void)
|
|
||||||
{
|
|
||||||
cp();
|
|
||||||
|
|
||||||
logger(LOG_DEBUG, _("Statistics for %s %s:"), device_info, device);
|
|
||||||
logger(LOG_DEBUG, _(" total bytes in: %10d"), device_total_in);
|
|
||||||
logger(LOG_DEBUG, _(" total bytes out: %10d"), device_total_out);
|
|
||||||
}
|
|
||||||
|
|
|
||||||
Loading…
Add table
Reference in a new issue