1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2010-2014 Intel Corporation
11 rte_eth_random_addr(uint8_t *addr)
13 #ifdef RTE_EXEC_ENV_WINDOWS /* FIXME: random is not supported */
16 uint64_t rand = rte_rand();
17 uint8_t *p = (uint8_t *)&rand;
19 rte_memcpy(addr, p, RTE_ETHER_ADDR_LEN);
20 addr[0] &= (uint8_t)~RTE_ETHER_GROUP_ADDR; /* clear multicast bit */
21 addr[0] |= RTE_ETHER_LOCAL_ADMIN_ADDR; /* set local assignment bit */
26 rte_ether_format_addr(char *buf, uint16_t size,
27 const struct rte_ether_addr *eth_addr)
29 snprintf(buf, size, RTE_ETHER_ADDR_PRT_FMT,
30 RTE_ETHER_ADDR_BYTES(eth_addr));
33 static int8_t get_xdigit(char ch)
35 if (ch >= '0' && ch <= '9')
37 if (ch >= 'a' && ch <= 'f')
39 if (ch >= 'A' && ch <= 'F')
44 /* Convert 00:11:22:33:44:55 to ethernet address */
45 static bool get_ether_addr6(const char *s0, struct rte_ether_addr *ea)
50 for (i = 0; i < RTE_ETHER_ADDR_LEN; i++) {
57 ea->addr_bytes[i] = x << 4;
61 ea->addr_bytes[i] |= x;
63 if (i < RTE_ETHER_ADDR_LEN - 1 &&
68 /* return true if at end of string */
72 /* Convert 0011:2233:4455 to ethernet address */
73 static bool get_ether_addr3(const char *s, struct rte_ether_addr *ea)
77 for (i = 0; i < RTE_ETHER_ADDR_LEN; i += 2) {
80 for (j = 0; j < 4; j++) {
88 ea->addr_bytes[i] = w >> 8;
89 ea->addr_bytes[i + 1] = w & 0xff;
91 if (i < RTE_ETHER_ADDR_LEN - 2 &&
100 * Like ether_aton_r but can handle either
101 * XX:XX:XX:XX:XX:XX or XXXX:XXXX:XXXX
102 * and is more restrictive.
105 rte_ether_unformat_addr(const char *s, struct rte_ether_addr *ea)
107 if (get_ether_addr6(s, ea))
109 if (get_ether_addr3(s, ea))