summaryrefslogtreecommitdiff
path: root/net/net_rand.c
diff options
context:
space:
mode:
Diffstat (limited to 'net/net_rand.c')
-rw-r--r--net/net_rand.c68
1 files changed, 0 insertions, 68 deletions
diff --git a/net/net_rand.c b/net/net_rand.c
deleted file mode 100644
index 5387aba..0000000
--- a/net/net_rand.c
+++ /dev/null
@@ -1,68 +0,0 @@
-/*
- * Based on LiMon - BOOTP.
- *
- * Copyright 1994, 1995, 2000 Neil Russell.
- * (See License)
- * Copyright 2000 Roland Borde
- * Copyright 2000 Paolo Scaffardi
- * Copyright 2000-2004 Wolfgang Denk, wd@denx.de
- */
-
-#include <common.h>
-#include <net.h>
-#include "net_rand.h"
-
-static ulong seed1, seed2;
-
-void srand_mac(void)
-{
- ulong tst1, tst2, m_mask;
- ulong m_value = 0;
- int reg;
- unsigned char bi_enetaddr[6];
-
- /* get our mac */
- eth_getenv_enetaddr("ethaddr", bi_enetaddr);
-
- debug("BootpRequest => Our Mac: ");
- for (reg = 0; reg < 6; reg++)
- debug("%x%c", bi_enetaddr[reg], reg == 5 ? '\n' : ':');
-
- /* Mac-Manipulation 2 get seed1 */
- tst1 = 0;
- tst2 = 0;
- for (reg = 2; reg < 6; reg++) {
- tst1 = tst1 << 8;
- tst1 = tst1 | bi_enetaddr[reg];
- }
- for (reg = 0; reg < 2; reg++) {
- tst2 = tst2 | bi_enetaddr[reg];
- tst2 = tst2 << 8;
- }
-
- seed1 = tst1^tst2;
-
- /* Mirror seed1*/
- m_mask = 0x1;
- for (reg = 1; reg <= 32; reg++) {
- m_value |= (m_mask & seed1);
- seed1 = seed1 >> 1;
- m_value = m_value << 1;
- }
- seed1 = m_value;
- seed2 = 0xb78d0945;
-}
-
-unsigned long rand(void)
-{
- ulong sum;
-
- /* Random Number Generator */
- sum = seed1 + seed2;
- if (sum < seed1 || sum < seed2)
- sum++;
- seed2 = seed1;
- seed1 = sum;
-
- return sum;
-}