2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2011 NetApp, Inc.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
18 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
19 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
20 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
21 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
22 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
24 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
25 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 #include <sys/cdefs.h>
29 __FBSDID("$FreeBSD$");
31 #include <sys/types.h>
32 #include <net/ethernet.h>
44 #include "net_utils.h"
47 net_parsemac(char *mac_str, uint8_t *mac_addr)
49 struct ether_addr *ea;
50 char zero_addr[ETHER_ADDR_LEN] = { 0, 0, 0, 0, 0, 0 };
55 ea = ether_aton(mac_str);
57 if (ea == NULL || ETHER_IS_MULTICAST(ea->octet) ||
58 memcmp(ea->octet, zero_addr, ETHER_ADDR_LEN) == 0) {
59 EPRINTLN("Invalid MAC %s", mac_str);
62 memcpy(mac_addr, ea->octet, ETHER_ADDR_LEN);
68 net_parsemtu(const char *mtu_str, unsigned long *mtu)
73 assert(mtu_str != NULL);
78 val = strtoul(mtu_str, &end, 0);
86 if (val == 0 && errno == EINVAL)
99 net_genmac(struct pci_devinst *pi, uint8_t *macaddr)
102 * The default MAC address is the standard NetApp OUI of 00-a0-98,
103 * followed by an MD5 of the PCI slot/func number and dev name
106 unsigned char digest[16];
109 snprintf(nstr, sizeof(nstr), "%d-%d-%s", pi->pi_slot,
110 pi->pi_func, vmname);
113 MD5Update(&mdctx, nstr, (unsigned int)strlen(nstr));
114 MD5Final(digest, &mdctx);
119 macaddr[3] = digest[0];
120 macaddr[4] = digest[1];
121 macaddr[5] = digest[2];