Teach ifconfig(8) how to print and set the MAC labels on network

interfaces using the 'mac' argument.  Without MAC support in the
kernel, this does not change the behavior of ifconfig.

Approved by:	re
Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, Network Associates Laboratories

sbin/ifconfig/Makefile

@@ -17,6 +17,10 @@ CFLAGS+=-DUSE_VLANS
 SRCS+=	ifieee80211.c
 CFLAGS+=-DUSE_IEEE80211
 
+#comment out to exclude MAC support
+SRCS+=	ifmac.c
+CFLAGS+=-DUSE_MAC
+
 MAN=	ifconfig.8
 
 .if defined(RELEASE_CRUNCH)

sbin/ifconfig/ifconfig.c

@@ -278,6 +278,9 @@ struct	cmd {
 	{ "wepkey",	NEXTARG,	set80211wepkey },
 	{ "nwkey",	NEXTARG,	set80211nwkey },	/* NetBSD */
 	{ "-nwkey",	0,		set80211wep },		/* NetBSD */
+#endif
+#ifdef USE_MAC
+	{ "mac",	NEXTARG,	setifmac },
 #endif
 	{ "rxcsum",	IFCAP_RXCSUM,	setifcap },
 	{ "-rxcsum",	-IFCAP_RXCSUM,	setifcap },
@@ -366,6 +369,9 @@ struct	afswtch {
 #ifdef USE_IEEE80211
 	{ "ieee80211", AF_UNSPEC, ieee80211_status, NULL, NULL, },  /* XXX not real!! */
 #endif
+#ifdef USE_MAC
+	{ "mac", AF_UNSPEC, mac_status, NULL, NULL, },
+#endif
 #endif
 	{ 0,	0,	    0,		0 }
 };
@@ -1144,6 +1150,10 @@ status(const struct afswtch *afp, int addrcount, struct	sockaddr_dl *sdl,
 #ifdef USE_IEEE80211
 	if (allfamilies || afp->af_status == ieee80211_status)
 		ieee80211_status(s, NULL);
+#endif
+#ifdef USE_MAC
+	if (allfamilies || afp->af_status == mac_status)
+		mac_status(s, NULL);
 #endif
 	strncpy(ifs.ifs_name, name, sizeof ifs.ifs_name);
 	if (ioctl(s, SIOCGIFSTATUS, &ifs) == 0) 

sbin/ifconfig/ifconfig.h

@@ -64,3 +64,5 @@ extern void set80211weptxkey(const char *, int, int, const struct afswtch *rafp)
 extern void set80211wepkey(const char *, int, int, const struct afswtch *rafp);
 extern void set80211nwkey(const char *, int, int, const struct afswtch *rafp);
 extern void ieee80211_status(int s, struct rt_addrinfo *);
+extern void mac_status(int s, struct rt_addrinfo *);
+extern void setifmac(const char *, int, int, const struct afswtch *rafp);

sbin/ifconfig/ifmac.c

@@ -0,0 +1,100 @@
+/*-
+ * Copyright (c) 2001 Networks Associates Technology, Inc.
+ * All rights reserved.
+ *
+ * This software was developed for the FreeBSD Project by NAI Labs, the
+ * Security Research Division of Network Associates, Inc. under
+ * DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA
+ * CHATS research program.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote
+ *    products derived from this software without specific prior written
+ *    permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#include <sys/param.h>
+#include <sys/ioctl.h>
+#include <sys/mac.h>
+#include <sys/socket.h>
+#include <sys/sockio.h>
+
+#include <net/if.h>
+#include <net/route.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "ifconfig.h"
+
+void
+mac_status(int s, struct rt_addrinfo *info)
+{
+	struct ifreq ifr;
+	mac_t label;
+	char *label_text;
+
+	memset(&ifr, 0, sizeof(ifr));
+	strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
+
+	if (mac_prepare_ifnet_label(&label) == -1)
+		return;
+	ifr.ifr_ifru.ifru_data = (void *)label;
+	if (ioctl(s, SIOCGIFMAC, &ifr) == -1)
+		goto mac_free;
+
+	
+	if (mac_to_text(label, &label_text) == -1)
+		goto mac_free;
+
+	if (strlen(label_text) != 0)
+		printf("\tmac %s\n", label_text);
+	free(label_text);
+
+mac_free:
+	mac_free(label);
+}
+
+void
+setifmac(const char *val, int d, int s, const struct afswtch *rafp)
+{
+	struct ifreq ifr;
+	mac_t label;
+	int error;
+
+	if (mac_from_text(&label, val) == -1) {
+		perror(val);
+		return;
+	}
+
+	memset(&ifr, 0, sizeof(ifr));
+	strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
+	ifr.ifr_ifru.ifru_data = (void *)label;
+
+	error = ioctl(s, SIOCSIFMAC, &ifr);
+	mac_free(label);
+	if (error == -1)
+		perror("setifmac");
+}