1 files changed, 0 insertions, 158 deletions
diff --git a/freebsd/sys/libkern/arc4random.c b/freebsd/sys/libkern/arc4random.c
deleted file mode 100644
index 89c89eea..00000000
--- a/freebsd/sys/libkern/arc4random.c
+++ /dev/null
@@ -1,158 +0,0 @@
-#include <machine/rtems-bsd-kernel-space.h>
-
-/*-
- * THE BEER-WARE LICENSE
- *
- * <dan@FreeBSD.ORG> wrote this file.  As long as you retain this notice you
- * can do whatever you want with this stuff.  If we meet some day, and you
- * think this stuff is worth it, you can buy me a beer in return.
- *
- * Dan Moschuk
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/types.h>
-#include <rtems/bsd/sys/param.h>
-#include <sys/kernel.h>
-#include <sys/random.h>
-#include <sys/libkern.h>
-#include <rtems/bsd/sys/lock.h>
-#include <sys/mutex.h>
-#include <sys/time.h>
-
-#define	ARC4_RESEED_BYTES 65536
-#define	ARC4_RESEED_SECONDS 300
-#define	ARC4_KEYBYTES (256 / 8)
-
-int arc4rand_iniseed_state = ARC4_ENTR_NONE;
-
-static u_int8_t arc4_i, arc4_j;
-static int arc4_numruns = 0;
-static u_int8_t arc4_sbox[256];
-static time_t arc4_t_reseed;
-static struct mtx arc4_mtx;
-
-static u_int8_t arc4_randbyte(void);
-
-static __inline void
-arc4_swap(u_int8_t *a, u_int8_t *b)
-{
-	u_int8_t c;
-
-	c = *a;
-	*a = *b;
-	*b = c;
-}	
-
-/*
- * Stir our S-box.
- */
-static void
-arc4_randomstir (void)
-{
-	u_int8_t key[256];
-	int r, n;
-	struct timeval tv_now;
-
-	/*
-	 * XXX read_random() returns unsafe numbers if the entropy
-	 * device is not loaded -- MarkM.
-	 */
-	r = read_random(key, ARC4_KEYBYTES);
-	getmicrouptime(&tv_now);
-	mtx_lock(&arc4_mtx);
-	/* If r == 0 || -1, just use what was on the stack. */
-	if (r > 0) {
-		for (n = r; n < sizeof(key); n++)
-			key[n] = key[n % r];
-	}
-
-	for (n = 0; n < 256; n++) {
-		arc4_j = (arc4_j + arc4_sbox[n] + key[n]) % 256;
-		arc4_swap(&arc4_sbox[n], &arc4_sbox[arc4_j]);
-	}
-	arc4_i = arc4_j = 0;
-
-	/* Reset for next reseed cycle. */
-	arc4_t_reseed = tv_now.tv_sec + ARC4_RESEED_SECONDS;
-	arc4_numruns = 0;
-
-	/*
-	 * Throw away the first N words of output, as suggested in the
-	 * paper "Weaknesses in the Key Scheduling Algorithm of RC4"
-	 * by Fluher, Mantin, and Shamir.  (N = 256 in our case.)
-	 */
-	for (n = 0; n < 256*4; n++)
-		arc4_randbyte();
-	mtx_unlock(&arc4_mtx);
-}
-
-/*
- * Initialize our S-box to its beginning defaults.
- */
-static void
-arc4_init(void)
-{
-	int n;
-
-	mtx_init(&arc4_mtx, "arc4_mtx", NULL, MTX_DEF);
-	arc4_i = arc4_j = 0;
-	for (n = 0; n < 256; n++)
-		arc4_sbox[n] = (u_int8_t) n;
-
-	arc4_t_reseed = 0;
-}
-
-SYSINIT(arc4_init, SI_SUB_LOCK, SI_ORDER_ANY, arc4_init, NULL);
-
-/*
- * Generate a random byte.
- */
-static u_int8_t
-arc4_randbyte(void)
-{
-	u_int8_t arc4_t;
-
-	arc4_i = (arc4_i + 1) % 256;
-	arc4_j = (arc4_j + arc4_sbox[arc4_i]) % 256;
-
-	arc4_swap(&arc4_sbox[arc4_i], &arc4_sbox[arc4_j]);
-
-	arc4_t = (arc4_sbox[arc4_i] + arc4_sbox[arc4_j]) % 256;
-	return arc4_sbox[arc4_t];
-}
-
-/*
- * MPSAFE
- */
-void
-arc4rand(void *ptr, u_int len, int reseed)
-{
-	u_char *p;
-	struct timeval tv;
-
-	getmicrouptime(&tv);
-	if (atomic_cmpset_int(&arc4rand_iniseed_state, ARC4_ENTR_HAVE,
-	    ARC4_ENTR_SEED) || reseed ||
-	   (arc4_numruns > ARC4_RESEED_BYTES) ||
-	   (tv.tv_sec > arc4_t_reseed))
-		arc4_randomstir();
-
-	mtx_lock(&arc4_mtx);
-	arc4_numruns += len;
-	p = ptr;
-	while (len--)
-		*p++ = arc4_randbyte();
-	mtx_unlock(&arc4_mtx);
-}
-
-uint32_t
-arc4random(void)
-{
-	uint32_t ret;
-
-	arc4rand(&ret, sizeof ret, 0);
-	return ret;
-}