1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
3*0Sstevel@tonic-gate * Use is subject to license terms.
4*0Sstevel@tonic-gate */
5*0Sstevel@tonic-gate
6*0Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
7*0Sstevel@tonic-gate /* All Rights Reserved */
8*0Sstevel@tonic-gate
9*0Sstevel@tonic-gate /*
10*0Sstevel@tonic-gate * Copyright (c) 1982, 1986 Regents of the University of California.
11*0Sstevel@tonic-gate * All rights reserved.
12*0Sstevel@tonic-gate *
13*0Sstevel@tonic-gate * Redistribution and use in source and binary forms are permitted
14*0Sstevel@tonic-gate * provided that this notice is preserved and that due credit is given
15*0Sstevel@tonic-gate * to the University of California at Berkeley. The name of the University
16*0Sstevel@tonic-gate * may not be used to endorse or promote products derived from this
17*0Sstevel@tonic-gate * software without specific prior written permission. This software
18*0Sstevel@tonic-gate * is provided ``as is'' without express or implied warranty.
19*0Sstevel@tonic-gate */
20*0Sstevel@tonic-gate
21*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
22*0Sstevel@tonic-gate
23*0Sstevel@tonic-gate #include <sys/types.h>
24*0Sstevel@tonic-gate #include <sys/sysmacros.h>
25*0Sstevel@tonic-gate #include <sys/ethernet.h>
26*0Sstevel@tonic-gate #include <sys/cmn_err.h>
27*0Sstevel@tonic-gate #include <sys/ksynch.h>
28*0Sstevel@tonic-gate
29*0Sstevel@tonic-gate /*
30*0Sstevel@tonic-gate * Store and retrieve local individual ethernet address.
31*0Sstevel@tonic-gate * This is typically initialized (called with 'hint' nonnull)
32*0Sstevel@tonic-gate * by the boot code.
33*0Sstevel@tonic-gate */
34*0Sstevel@tonic-gate
35*0Sstevel@tonic-gate static kmutex_t localetheraddr_lock; /* Perimeter lock for localetheraddr */
36*0Sstevel@tonic-gate
37*0Sstevel@tonic-gate int
localetheraddr(struct ether_addr * hint,struct ether_addr * result)38*0Sstevel@tonic-gate localetheraddr(struct ether_addr *hint, struct ether_addr *result)
39*0Sstevel@tonic-gate {
40*0Sstevel@tonic-gate static int found = 0;
41*0Sstevel@tonic-gate static struct ether_addr addr;
42*0Sstevel@tonic-gate
43*0Sstevel@tonic-gate mutex_enter(&localetheraddr_lock);
44*0Sstevel@tonic-gate if (!found) {
45*0Sstevel@tonic-gate if (hint == NULL) {
46*0Sstevel@tonic-gate mutex_exit(&localetheraddr_lock);
47*0Sstevel@tonic-gate return (0);
48*0Sstevel@tonic-gate }
49*0Sstevel@tonic-gate found = 1;
50*0Sstevel@tonic-gate addr = *hint;
51*0Sstevel@tonic-gate cmn_err(CE_CONT, "?Ethernet address = %s\n",
52*0Sstevel@tonic-gate ether_sprintf(&addr));
53*0Sstevel@tonic-gate }
54*0Sstevel@tonic-gate if (result != NULL)
55*0Sstevel@tonic-gate *result = addr;
56*0Sstevel@tonic-gate mutex_exit(&localetheraddr_lock);
57*0Sstevel@tonic-gate return (1);
58*0Sstevel@tonic-gate }
59*0Sstevel@tonic-gate
60*0Sstevel@tonic-gate /*
61*0Sstevel@tonic-gate * Convert Ethernet address to printable (loggable) representation.
62*0Sstevel@tonic-gate *
63*0Sstevel@tonic-gate * XXX This is not MT-safe, but its only race is for the "etherbuf".
64*0Sstevel@tonic-gate */
65*0Sstevel@tonic-gate char *
ether_sprintf(struct ether_addr * addr)66*0Sstevel@tonic-gate ether_sprintf(struct ether_addr *addr)
67*0Sstevel@tonic-gate {
68*0Sstevel@tonic-gate static char etherbuf[18];
69*0Sstevel@tonic-gate
70*0Sstevel@tonic-gate (void) snprintf(etherbuf, sizeof (etherbuf), "%x:%x:%x:%x:%x:%x",
71*0Sstevel@tonic-gate addr->ether_addr_octet[0], addr->ether_addr_octet[1],
72*0Sstevel@tonic-gate addr->ether_addr_octet[2], addr->ether_addr_octet[3],
73*0Sstevel@tonic-gate addr->ether_addr_octet[4], addr->ether_addr_octet[5]);
74*0Sstevel@tonic-gate return (etherbuf);
75*0Sstevel@tonic-gate }
76*0Sstevel@tonic-gate
77*0Sstevel@tonic-gate static int
hexval(char dig)78*0Sstevel@tonic-gate hexval(char dig)
79*0Sstevel@tonic-gate {
80*0Sstevel@tonic-gate if ('0' <= dig && dig <= '9') {
81*0Sstevel@tonic-gate return (dig - '0');
82*0Sstevel@tonic-gate } else if ('a' <= dig && dig <= 'f') {
83*0Sstevel@tonic-gate return (dig - 'a' + 10);
84*0Sstevel@tonic-gate } else if ('A' <= dig && dig <= 'F') {
85*0Sstevel@tonic-gate return (dig - 'A' + 10);
86*0Sstevel@tonic-gate } else {
87*0Sstevel@tonic-gate return (-1);
88*0Sstevel@tonic-gate }
89*0Sstevel@tonic-gate }
90*0Sstevel@tonic-gate
91*0Sstevel@tonic-gate /*
92*0Sstevel@tonic-gate * Convert Ethernet address from ascii to binary form.
93*0Sstevel@tonic-gate * Return number of bytes written.
94*0Sstevel@tonic-gate */
95*0Sstevel@tonic-gate int
ether_aton(char * addr,uchar_t * macaddr)96*0Sstevel@tonic-gate ether_aton(char *addr, uchar_t *macaddr)
97*0Sstevel@tonic-gate {
98*0Sstevel@tonic-gate int i = 0;
99*0Sstevel@tonic-gate uint_t val = 0;
100*0Sstevel@tonic-gate char *cp = addr;
101*0Sstevel@tonic-gate
102*0Sstevel@tonic-gate while (*cp != 0 && i < 6) {
103*0Sstevel@tonic-gate if (*cp == ':') {
104*0Sstevel@tonic-gate macaddr[i++] = val;
105*0Sstevel@tonic-gate val = 0;
106*0Sstevel@tonic-gate cp++;
107*0Sstevel@tonic-gate continue;
108*0Sstevel@tonic-gate }
109*0Sstevel@tonic-gate
110*0Sstevel@tonic-gate val = (val << 4) | hexval(*cp++);
111*0Sstevel@tonic-gate }
112*0Sstevel@tonic-gate macaddr[i] = val;
113*0Sstevel@tonic-gate return (i + 1);
114*0Sstevel@tonic-gate }
115