diff options
Diffstat (limited to 'gremlin.h')
| -rw-r--r-- | gremlin.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/gremlin.h b/gremlin.h new file mode 100644 index 0000000..c0aeab1 --- /dev/null +++ b/gremlin.h @@ -0,0 +1,72 @@ +/* + * OpenVPN -- An application to securely tunnel IP networks + * over a single UDP port, with support for SSL/TLS-based + * session authentication and key exchange, + * packet encryption, packet authentication, and + * packet compression. + * + * Copyright (C) 2002-2010 OpenVPN Technologies, Inc. <sales@openvpn.net> + * + * 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 + */ + +#ifndef GREMLIN_H +#define GREMLIN_H + +#ifdef ENABLE_DEBUG + +/* + * Gremlin options, presented as bitmask argument to --gremlin directive + */ + +#define GREMLIN_CONNECTION_FLOOD_SHIFT (0) +#define GREMLIN_CONNECTION_FLOOD_MASK (0x07) + +#define GREMLIN_PACKET_FLOOD_SHIFT (3) +#define GREMLIN_PACKET_FLOOD_MASK (0x03) + +#define GREMLIN_CORRUPT_SHIFT (5) +#define GREMLIN_CORRUPT_MASK (0x03) + +#define GREMLIN_UP_DOWN_SHIFT (7) +#define GREMLIN_UP_DOWN_MASK (0x03) + +/* 512:1/500 1024:1/100 1536:1/50 */ + +#define GREMLIN_DROP_SHIFT (9) +#define GREMLIN_DROP_MASK (0x03) + +/* extract gremlin parms */ + +#define GREMLIN_CONNECTION_FLOOD_LEVEL(x) (((x)>>GREMLIN_CONNECTION_FLOOD_SHIFT) & GREMLIN_CONNECTION_FLOOD_MASK) +#define GREMLIN_PACKET_FLOOD_LEVEL(x) (((x)>>GREMLIN_PACKET_FLOOD_SHIFT) & GREMLIN_PACKET_FLOOD_MASK) +#define GREMLIN_CORRUPT_LEVEL(x) (((x)>>GREMLIN_CORRUPT_SHIFT) & GREMLIN_CORRUPT_MASK) +#define GREMLIN_UP_DOWN_LEVEL(x) (((x)>>GREMLIN_UP_DOWN_SHIFT) & GREMLIN_UP_DOWN_MASK) +#define GREMLIN_DROP_LEVEL(x) (((x)>>GREMLIN_DROP_SHIFT) & GREMLIN_DROP_MASK) + +#include "buffer.h" + +struct packet_flood_parms +{ + int n_packets; + int packet_size; +}; + +bool ask_gremlin (int flags); +void corrupt_gremlin (struct buffer* buf, int flags); +struct packet_flood_parms get_packet_flood_parms (int level); + +#endif +#endif |