mirror of
https://github.com/OpenVPN/openvpn.git
synced 2024-09-20 12:02:28 +02:00
6fbf66fad3
It includes the --topology feature, and TAP-Win32 driver changes to allow non-admin access. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@580 e7ae566f-a301-0410-adde-c780ea21d3b5
113 lines
3.4 KiB
C
113 lines
3.4 KiB
C
/*
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* OpenVPN -- An application to securely tunnel IP networks
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* over a single UDP port, with support for SSL/TLS-based
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* session authentication and key exchange,
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* packet encryption, packet authentication, and
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* packet compression.
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*
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* Copyright (C) 2002-2005 OpenVPN Solutions LLC <info@openvpn.net>
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*
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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 version 2
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* as published by the Free Software Foundation.
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*
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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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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program (see the file COPYING included with this
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* distribution); if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef MEMDBG_H
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#define MEMDBG_H
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/*
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* Valgrind debugging support.
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*
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* Valgrind is a great tool for debugging memory issues,
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* though it seems to generate a lot of warnings in OpenSSL
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* about uninitialized data. To silence these warnings,
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* I've put together a suppressions file
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* in debug/valgrind-suppress.
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*
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* Also, grep for VALGRIND_MAKE_READABLE in the OpenVPN source.
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* Because valgrind thinks that some of the data passed from
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* OpenSSL back to OpenVPN is tainted due to being sourced
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* from uninitialized data, we need to untaint it before use --
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* otherwise we will get a lot of useless warnings.
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*
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* valgrind --tool=memcheck --error-limit=no --suppressions=debug/valgrind-suppress --gen-suppressions=yes ./openvpn ...
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*/
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#ifdef USE_VALGRIND
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#include "valgrind/memcheck.h"
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#else
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#define VALGRIND_MAKE_READABLE(addr, len)
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#endif
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#ifdef DMALLOC /* see ./configure options to enable */
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/*
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* See ./configure options to enable dmalloc
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* support for memory leak checking.
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*
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* The dmalloc package can be downloaded from:
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*
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* http://dmalloc.com/
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*
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* When dmalloc is installed and enabled,
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* use this command prior to running openvpn:
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*
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* dmalloc -l dlog -i 100 low -p log-unknown
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*
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* Also, put this in your .bashrc file:
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*
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* function dmalloc { eval `command dmalloc -b $*`; }
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*
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* Or take a more low-level approach:
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*
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* export DMALLOC_OPTIONS="debug=0x4e48503,inter=100,log=dlog"
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*
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* NOTE: When building dmalloc you need to add something
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* like this to dmalloc's settings.h -- it will allocate a static
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* buffer to be used as the malloc arena:
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*
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* #define INTERNAL_MEMORY_SPACE (1024 * 1024 * 50)
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*/
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#include "dmalloc.h"
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#define openvpn_dmalloc(file, line, size) dmalloc_malloc((file), (line), (size), DMALLOC_FUNC_MALLOC, 0, 0)
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/*
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* This #define will put the line number of the log
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* file position where leaked memory was allocated instead
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* of the source code file and line number. Make sure
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* to increase the size of dmalloc's info tables,
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* (MEMORY_TABLE_SIZE in settings.h)
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* otherwise it might get overwhelmed by the large
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* number of unique file/line combinations.
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*/
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#if 0
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#undef malloc
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#define malloc(size) openvpn_dmalloc("logfile", x_msg_line_num, (size))
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#endif
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#endif /* DMALLOC */
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/*
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* Force buffers to be zeroed after allocation.
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* For debugging only.
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*/
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/*#define ZERO_BUFFER_ON_ALLOC*/
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#endif /* MEMDBG_H */
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