patch-1.3.30 linux/include/linux/random.h

• Lines: 37
• Date: Mon Sep 25 08:19:07 1995
• Orig file: v1.3.29/linux/include/linux/random.h
• Orig date: Thu Jan 1 02:00:00 1970

diff -u --recursive --new-file v1.3.29/linux/include/linux/random.h linux/include/linux/random.h
@@ -0,0 +1,36 @@
+/*
+ * include/linux/random.h
+ *
+ * Include file for the random number generator.
+ */
+
+/*
+ * We should always include the random number generator, since it's
+ * relatively small, and it's most useful when application developers
+ * can assume that all Linux systems have it.  (Ideally, it would be
+ * best if we could assume that all Unix systems had it, but oh
+ * well....)
+ * 
+ * Also, many kernel routines will have a use for good random numbers,
+ * for example, for truely random TCP sequence numbers, which prevent
+ * certain forms of TCP spoofing attacks.
+ */
+#define CONFIG_RANDOM
+
+/* Exported functions */
+
+#ifdef CONFIG_RANDOM
+void rand_initialize(void);
+
+void add_keyboard_randomness(unsigned char scancode);
+void add_interrupt_randomness(int irq);
+
+void get_random_bytes(void *buf, int nbytes);
+int read_random(struct inode * inode, struct file * file,
+		char * buf, int nbytes);
+int read_random_unlimited(struct inode * inode, struct file * file,
+			  char * buf, int nbytes);
+#else
+#define add_keyboard_randomness(x)
+#define add_interrupt_randomness(x)
+#endif