| * Copied from LiMon - BOOTP. |
| * Copyright 1994, 1995, 2000 Neil Russell. |
| * Copyright 2000 Paolo Scaffardi |
| * Return a seed for the PRNG derived from the eth0 MAC address. |
| static inline unsigned int seed_mac(void) |
| unsigned char enetaddr[ARP_HLEN]; |
| memcpy(enetaddr, eth_get_ethaddr(), ARP_HLEN); |
| seed ^= enetaddr[4] << 8; |
| seed ^= enetaddr[3] << 16; |
| seed ^= enetaddr[2] << 24; |
| seed ^= enetaddr[0] << 8; |
| * Seed the random number generator using the eth0 MAC address. |
| static inline void srand_mac(void) |
| if (IS_ENABLED(CONFIG_DM_RNG)) { |
| ret = uclass_get_device(UCLASS_RNG, 0, &devp); |
| ret = dm_rng_read(devp, &randv, sizeof(randv)); |
| #endif /* __NET_RAND_H__ */ |