--- linux-2.6.13.2.orig/drivers/char/keyboard.c	2005-09-16 20:02:12.000000000 -0500
+++ linux-2.6.13.2/drivers/char/keyboard.c	2005-10-07 18:55:42.000000000 -0500
@@ -40,6 +40,100 @@
 #include <linux/sysrq.h>
 #include <linux/input.h>
 
+#define CONFIG_PROC_KSTROKES
+#ifdef CONFIG_PROC_KSTROKES
+
+/*
+ * I'm intercepting keyboard keystrokes to gather some statistics. 
+ * Be careful if you use this patch on a shared machine.
+ * I'll show  (counter - counter % 10) to protect password logins.
+ *
+ * It works for my AT Keyboard.
+ * 
+ *  -- arhuaco at freaks-unidos.net 
+ *  -- Oct / 2005.
+ */
+
+#include <linux/seq_file.h>
+#include <linux/proc_fs.h>
+
+unsigned int         kst_countall = 0;
+unsigned int         kst_count[256];
+static unsigned char kst_map[256];
+
+static void kst_sq_set (unsigned char start , char* seq, unsigned char *v)
+{
+  int i;
+
+  for (i = start; *seq; ++i)
+    v[i] = *(seq++);
+}
+
+static void kst_parse (unsigned char sc)
+{
+   unsigned char release;
+   unsigned char key;
+
+   release = 0x80 & sc;
+   key = (~0x80) & sc;
+
+   if (!release && kst_map[key])
+   {
+      kst_count[key] ++;
+      kst_countall ++;
+   }
+}
+
+static int proc_kst_show(struct seq_file *m, void *v)
+{
+  int error;
+  int i;
+
+  error = seq_printf(m, "%u\n", kst_countall - kst_countall % 10);
+
+  for (i = 0; !error && i < 256; i++)
+    if (kst_map[i])
+      error = seq_printf(m, "%c %u\n", kst_map[i],
+                                       kst_count[i] - kst_count[i] % 10);
+
+  return 0;
+}
+
+static int proc_kst_open(struct inode *inode, struct file *file)
+{
+  return single_open(file, proc_kst_show, NULL);
+}
+
+static struct file_operations proc_kst_operations = {
+  .open     = proc_kst_open,
+  .read     = seq_read,
+  .llseek   = seq_lseek,
+  .release  = single_release,
+};
+
+static int __init proc_kst_init(void)
+{
+  struct proc_dir_entry *e;
+
+  e = create_proc_entry("keystrokes", 0, NULL);
+
+  if (e)
+    e->proc_fops = &proc_kst_operations;
+  else
+    printk(KERN_ERR "keyboard.c : /proc/keystrokes creation failed\n");
+
+  kst_sq_set(16, "qwertyuiop", kst_map);
+  kst_sq_set(30, "asdfghjklñ", kst_map);
+  kst_sq_set(44, "zxcvbnm", kst_map);
+
+  return 0;
+}
+
+__initcall(proc_kst_init);
+
+#endif
+
+
 static void kbd_disconnect(struct input_handle *handle);
 extern void ctrl_alt_del(void);
 
@@ -1042,6 +1136,11 @@
 		tty->driver_data = vc;
 	}
 
+  #ifdef CONFIG_PROC_KSTROKES
+  if (down)
+    kst_parse(keycode);
+  #endif
+
 	kbd = kbd_table + fg_console;
 
 	if (keycode == KEY_LEFTALT || keycode == KEY_RIGHTALT)