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authorOthmar Gsenger <otti@anytun.org>2008-04-12 11:38:42 +0000
committerOthmar Gsenger <otti@anytun.org>2008-04-12 11:38:42 +0000
commitfffd213c8cba2135afda493d797c41c10354770e (patch)
treebb5eea1b12871d8c3fed0e687d83be3e504d11b2 /openvpn/tap-win32/macinfo.c
parentsvn cleanup (diff)
big svn cleanup
Diffstat (limited to 'openvpn/tap-win32/macinfo.c')
-rwxr-xr-xopenvpn/tap-win32/macinfo.c158
1 files changed, 0 insertions, 158 deletions
diff --git a/openvpn/tap-win32/macinfo.c b/openvpn/tap-win32/macinfo.c
deleted file mode 100755
index bc75f3d..0000000
--- a/openvpn/tap-win32/macinfo.c
+++ /dev/null
@@ -1,158 +0,0 @@
-/*
- * TAP-Win32 -- A kernel driver to provide virtual tap device functionality
- * on Windows. Originally derived from the CIPE-Win32
- * project by Damion K. Wilson, with extensive modifications by
- * James Yonan.
- *
- * All source code which derives from the CIPE-Win32 project is
- * Copyright (C) Damion K. Wilson, 2003, and is released under the
- * GPL version 2 (see below).
- *
- * All other source code is Copyright (C) 2002-2005 OpenVPN Solutions LLC,
- * and is released under the GPL version 2 (see below).
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program (see the file COPYING included with this
- * distribution); if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include "macinfo.h"
-
-int
-HexStringToDecimalInt (const int p_Character)
-{
- int l_Value = 0;
-
- if (p_Character >= 'A' && p_Character <= 'F')
- l_Value = (p_Character - 'A') + 10;
- else if (p_Character >= 'a' && p_Character <= 'f')
- l_Value = (p_Character - 'a') + 10;
- else if (p_Character >= '0' && p_Character <= '9')
- l_Value = p_Character - '0';
-
- return l_Value;
-}
-
-BOOLEAN
-ParseMAC (MACADDR dest, const char *src)
-{
- int c;
- int mac_index = 0;
- BOOLEAN high_digit = FALSE;
- int delim_action = 1;
-
- MYASSERT (src);
- MYASSERT (dest);
-
- CLEAR_MAC (dest);
-
- while (c = *src++)
- {
- if (IsMacDelimiter (c))
- {
- mac_index += delim_action;
- high_digit = FALSE;
- delim_action = 1;
- }
- else if (IsHexDigit (c))
- {
- const int digit = HexStringToDecimalInt (c);
- if (mac_index < sizeof (MACADDR))
- {
- if (!high_digit)
- {
- dest[mac_index] = (char)(digit);
- high_digit = TRUE;
- delim_action = 1;
- }
- else
- {
- dest[mac_index] = (char)(dest[mac_index] * 16 + digit);
- ++mac_index;
- high_digit = FALSE;
- delim_action = 0;
- }
- }
- else
- return FALSE;
- }
- else
- return FALSE;
- }
-
- return (mac_index + delim_action) >= sizeof (MACADDR);
-}
-
-/*
- * Generate a MAC using the GUID in the adapter name.
- *
- * The mac is constructed as 00:FF:xx:xx:xx:xx where
- * the Xs are taken from the first 32 bits of the GUID in the
- * adapter name. This is similar to the Linux 2.4 tap MAC
- * generator, except linux uses 32 random bits for the Xs.
- *
- * In general, this solution is reasonable for most
- * applications except for very large bridged TAP networks,
- * where the probability of address collisions becomes more
- * than infintesimal.
- *
- * Using the well-known "birthday paradox", on a 1000 node
- * network the probability of collision would be
- * 0.000116292153. On a 10,000 node network, the probability
- * of collision would be 0.01157288998621678766.
- */
-
-VOID GenerateRandomMac (MACADDR mac, const unsigned char *adapter_name)
-{
- unsigned const char *cp = adapter_name;
- unsigned char c;
- unsigned int i = 2;
- unsigned int byte = 0;
- int brace = 0;
- int state = 0;
-
- CLEAR_MAC (mac);
-
- mac[0] = 0x00;
- mac[1] = 0xFF;
-
- while (c = *cp++)
- {
- if (i >= sizeof (MACADDR))
- break;
- if (c == '{')
- brace = 1;
- if (IsHexDigit (c) && brace)
- {
- const unsigned int digit = HexStringToDecimalInt (c);
- if (state)
- {
- byte <<= 4;
- byte |= digit;
- mac[i++] = (unsigned char) byte;
- state = 0;
- }
- else
- {
- byte = digit;
- state = 1;
- }
- }
- }
-}
-
-VOID GenerateRelatedMAC (MACADDR dest, const MACADDR src, const int delta)
-{
- COPY_MAC (dest, src);
- dest[2] += (UCHAR) delta;
-}