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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-17 02:20:36 +0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-17 02:20:36 +0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/linux/random.h
downloadlinux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/linux/random.h')
-rw-r--r--include/linux/random.h72
1 files changed, 72 insertions, 0 deletions
diff --git a/include/linux/random.h b/include/linux/random.h
new file mode 100644
index 000000000000..cc6703449916
--- /dev/null
+++ b/include/linux/random.h
@@ -0,0 +1,72 @@
+/*
+ * include/linux/random.h
+ *
+ * Include file for the random number generator.
+ */
+
+#ifndef _LINUX_RANDOM_H
+#define _LINUX_RANDOM_H
+
+#include <linux/ioctl.h>
+
+/* ioctl()'s for the random number generator */
+
+/* Get the entropy count. */
+#define RNDGETENTCNT _IOR( 'R', 0x00, int )
+
+/* Add to (or subtract from) the entropy count. (Superuser only.) */
+#define RNDADDTOENTCNT _IOW( 'R', 0x01, int )
+
+/* Get the contents of the entropy pool. (Superuser only.) */
+#define RNDGETPOOL _IOR( 'R', 0x02, int [2] )
+
+/*
+ * Write bytes into the entropy pool and add to the entropy count.
+ * (Superuser only.)
+ */
+#define RNDADDENTROPY _IOW( 'R', 0x03, int [2] )
+
+/* Clear entropy count to 0. (Superuser only.) */
+#define RNDZAPENTCNT _IO( 'R', 0x04 )
+
+/* Clear the entropy pool and associated counters. (Superuser only.) */
+#define RNDCLEARPOOL _IO( 'R', 0x06 )
+
+struct rand_pool_info {
+ int entropy_count;
+ int buf_size;
+ __u32 buf[0];
+};
+
+/* Exported functions */
+
+#ifdef __KERNEL__
+
+extern void rand_initialize_irq(int irq);
+
+extern void add_input_randomness(unsigned int type, unsigned int code,
+ unsigned int value);
+extern void add_interrupt_randomness(int irq);
+
+extern void get_random_bytes(void *buf, int nbytes);
+void generate_random_uuid(unsigned char uuid_out[16]);
+
+extern __u32 secure_ip_id(__u32 daddr);
+extern u32 secure_tcp_port_ephemeral(__u32 saddr, __u32 daddr, __u16 dport);
+extern u32 secure_tcpv6_port_ephemeral(const __u32 *saddr, const __u32 *daddr,
+ __u16 dport);
+extern __u32 secure_tcp_sequence_number(__u32 saddr, __u32 daddr,
+ __u16 sport, __u16 dport);
+extern __u32 secure_tcpv6_sequence_number(__u32 *saddr, __u32 *daddr,
+ __u16 sport, __u16 dport);
+
+#ifndef MODULE
+extern struct file_operations random_fops, urandom_fops;
+#endif
+
+unsigned int get_random_int(void);
+unsigned long randomize_range(unsigned long start, unsigned long end, unsigned long len);
+
+#endif /* __KERNEL___ */
+
+#endif /* _LINUX_RANDOM_H */