lib/librte_net/rte_ether.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2010-2014 Intel Corporation
   3  */
   4
   5 #include <rte_ether.h>
   6
   7 void
   8 rte_eth_random_addr(uint8_t *addr)
   9 {
  10         uint64_t rand = rte_rand();
  11         uint8_t *p = (uint8_t *)&rand;
  12
  13         rte_memcpy(addr, p, RTE_ETHER_ADDR_LEN);
  14         addr[0] &= (uint8_t)~RTE_ETHER_GROUP_ADDR;      /* clear multicast bit */
  15         addr[0] |= RTE_ETHER_LOCAL_ADMIN_ADDR;  /* set local assignment bit */
  16 }
  17
  18 void
  19 rte_ether_format_addr(char *buf, uint16_t size,
  20                       const struct rte_ether_addr *eth_addr)
  21 {
  22         snprintf(buf, size, "%02X:%02X:%02X:%02X:%02X:%02X",
  23                  eth_addr->addr_bytes[0],
  24                  eth_addr->addr_bytes[1],
  25                  eth_addr->addr_bytes[2],
  26                  eth_addr->addr_bytes[3],
  27                  eth_addr->addr_bytes[4],
  28                  eth_addr->addr_bytes[5]);
  29 }