sync with more recent KAME tree. handles scoped IPv6 notation.

supports "delete" subcommand.
corrects PR 19663.

usr.sbin/gifconfig/gifconfig.8

@@ -1,6 +1,9 @@
+.\"	$FreeBSD$
+.\"	$KAME: gifconfig.8,v 1.5 2000/05/13 07:48:10 itojun Exp $
+.\"
 .\" Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
 .\" All rights reserved.
-.\"
+.\" 
 .\" Redistribution and use in source and binary forms, with or without
 .\" modification, are permitted provided that the following conditions
 .\" are met:
@@ -12,7 +15,7 @@
 .\" 3. Neither the name of the project nor the names of its contributors
 .\"    may be used to endorse or promote products derived from this software
 .\"    without specific prior written permission.
-.\"
+.\" 
 .\" THIS SOFTWARE IS PROVIDED BY THE PROJECT 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
@@ -25,9 +28,6 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\"     $Id: gifconfig.8,v 1.2 1999/10/07 04:25:54 itojun Exp $
-.\" $FreeBSD$
-.\"
 .Dd May 17, 1998
 .Dt GIFCONFIG 8
 .Os
@@ -40,6 +40,9 @@
 .Op Ar af
 .Op Ar physsrc physdest
 .Nm gifconfig
+.Ar interface
+.Ic delete
+.Nm gifconfig
 .Fl a
 .Sh DESCRIPTION
 .Nm
@@ -66,6 +69,14 @@ and will be treated as
 .Li inet
 if ommitted.
 .Pp
+If a special argument
+.Ic delete
+is specified,
+.Nm
+just deletes the existing source and destination addresses on
+.Ar interface .
+If no outer addresses are specified, this usage has no effect.
+.Pp
 .Nm
 takes the following optional argument:
 .Bl -tag -width Ds

usr.sbin/gifconfig/gifconfig.c

@@ -1,3 +1,6 @@
+/*	$FreeBSD$	*/
+/*	$KAME: gifconfig.c,v 1.12 2000/05/22 05:50:43 itojun Exp $	*/
+
 /*
  * Copyright (c) 1983, 1993
  *	The Regents of the University of California.  All rights reserved.
@@ -29,8 +32,6 @@
  * 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.
- *
- * $FreeBSD$
  */
 
 /*
@@ -57,7 +58,9 @@
 #include <sys/sysctl.h>
 
 #include <net/if.h>
+#if defined(__FreeBSD__) && __FreeBSD__ >= 3
 #include <net/if_var.h>
+#endif /* __FreeBSD__ >= 3 */
 #include <net/if_dl.h>
 #include <net/if_types.h>
 #include <net/route.h>
@@ -91,9 +94,9 @@ int	flags;
 int	metric;
 int	mtu;
 int	setpsrc = 0;
+int	newaddr = 0;
 int	s;
 kvm_t	*kvmd;
-extern	int errno;
 
 #ifdef INET6
 char ntop_buf[INET6_ADDRSTRLEN];	/*inet_ntop()*/
@@ -102,7 +105,9 @@ char ntop_buf[INET6_ADDRSTRLEN];	/*inet_ntop()*/
 void setifpsrc __P((char *, int));
 void setifpdst __P((char *, int));
 void setifflags __P((char *, int));
-
+#ifdef SIOCDIFPHYADDR
+void delifaddrs __P((char *, int));
+#endif
 
 #define	NEXTARG		0xffffff
 
@@ -113,6 +118,9 @@ struct	cmd {
 } cmds[] = {
 	{ "up",		IFF_UP,		setifflags } ,
 	{ "down",	-IFF_UP,	setifflags },
+#ifdef SIOCDIFPHYADDR
+	{ "delete",	0,		delifaddrs },
+#endif
 	{ 0,		0,		setifpsrc },
 	{ 0,		0,		setifpdst },
 };
@@ -151,7 +159,7 @@ struct afswtch {
 	caddr_t af_addreq;
 	caddr_t af_req;
 } afs[] = {
-#define	C(x) ((caddr_t) &x)
+#define C(x) ((caddr_t) &x)
 	{ "inet", AF_INET, in_status, in_getaddr, 0,
 	     SIOCSIFPHYADDR, C(addreq), C(ifr) },
 #ifdef INET6
@@ -174,9 +182,9 @@ int	ifconfig __P((int argc, char *argv[], int af, struct afswtch *rafp));
  * configuration read via sysctl().
  */
 
-#define	ROUNDUP(a) \
+#define ROUNDUP(a) \
 	((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long))
-#define	ADVANCE(x, n) (x += ROUNDUP((n)->sa_len))
+#define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len))
 
 void
 rt_xaddrs(cp, cplim, rtinfo)
@@ -219,8 +227,14 @@ main(argc, argv)
 	int all;
 
 	if (argc < 2) {
-		fprintf(stderr, "usage: gifconfig interface %s",
+		fprintf(stderr,
-		    "[ af ] physsrc physdst\n");
+		    "usage: gifconfig interface [af] [physsrc physdst]\n");
+#ifdef SIOCDIFPHYADDR
+		fprintf(stderr,
+		    "       gifconfig interface delete\n");
+#endif
+		fprintf(stderr,
+		    "       gifconfig -a\n");
 		exit(1);
 	}
 	argc--, argv++;
@@ -335,7 +349,7 @@ main(argc, argv)
 
 	if (all == 0)
 		errx(1, "interface %s does not exist", name);
-
+	
 
 	exit (0);
 }
@@ -395,15 +409,18 @@ ifconfig(argc, argv, af, rafp)
 		}
 		argc--, argv++;
 	}
-	if (1 /*newaddr*/) {
+	if (newaddr) {
 		strncpy(rafp->af_addreq, name, sizeof ifr.ifr_name);
 		if (ioctl(s, rafp->af_pifaddr, rafp->af_addreq) < 0)
 			Perror("ioctl (SIOCSIFPHYADDR)");
 	}
+	else if (setpsrc) {
+		errx(1, "destination is not specified");
+	}
 	return(0);
 }
-#define	PSRC	0
+#define PSRC	0
-#define	PDST	1
+#define PDST	1
 
 /*ARGSUSED*/
 void
@@ -424,6 +441,7 @@ setifpdst(addr, param)
 {
 	param = 0;	/*fool gcc*/
 	(*afp->af_getaddr)(addr, PDST);
+	newaddr = 1;
 }
 
 void
@@ -448,6 +466,21 @@ setifflags(vname, value)
 		Perror(vname);
 }
 
+#ifdef SIOCDIFPHYADDR
+/* ARGSUSED */
+void
+delifaddrs(vname, param)
+	char *vname;
+	int param;
+{
+	param = 0;		/* fool gcc */
+	vname = NULL;		/* ditto */
+
+	if (ioctl(s, SIOCDIFPHYADDR, (caddr_t)&ifr) < 0)
+		err(1, "ioctl(SIOCDIFPHYADDR)");
+}
+#endif
+
 #define	IFFBITS \
 "\020\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5POINTOPOINT\6NOTRAILERS\7RUNNING\10NOARP\
 \11PROMISC\12ALLMULTI\13OACTIVE\14SIMPLEX\15LINK0\16LINK1\17LINK2\20MULTICAST"
@@ -536,24 +569,35 @@ phys_status(force)
 	int flags = NI_NUMERICHOST;
 	struct ifreq *ifrp;
 	char *ver = "";
+#ifdef INET6
+	int s6;
+#endif
 
 	force = 0;	/*fool gcc*/
 
 	psrcaddr[0] = pdstaddr[0] = '\0';
 
 #ifdef INET6
-	srccmd = SIOCGIFPSRCADDR_IN6;
+	s6 = socket(AF_INET6, SOCK_DGRAM, 0);
-	dstcmd = SIOCGIFPDSTADDR_IN6;
+	if (s6 < 0) {
-	ifrp = (struct ifreq *)&in6_ifr;
+		ifrp = &ifr;
+		srccmd = SIOCGIFPSRCADDR;
+		dstcmd = SIOCGIFPDSTADDR;
+	} else {
+		close(s6);
+		srccmd = SIOCGIFPSRCADDR_IN6;
+		dstcmd = SIOCGIFPDSTADDR_IN6;
+		ifrp = (struct ifreq *)&in6_ifr;
+	}
 #else /* INET6 */
-	ifrp = ifr;
+	ifrp = &ifr;
 	srccmd = SIOCGIFPSRCADDR;
 	dstcmd = SIOCGIFPDSTADDR;
 #endif /* INET6 */
 
 	if (0 <= ioctl(s, srccmd, (caddr_t)ifrp)) {
 		getnameinfo(&ifrp->ifr_addr, ifrp->ifr_addr.sa_len,
-			    hostname, NI_MAXHOST, 0, 0, flags);
+			    hostname, sizeof(hostname), 0, 0, flags);
 #ifdef INET6
 		if (ifrp->ifr_addr.sa_family == AF_INET6)
 			ver = "6";
@@ -562,7 +606,7 @@ phys_status(force)
 	}
 	if (0 <= ioctl(s, dstcmd, (caddr_t)ifrp)) {
 		getnameinfo(&ifrp->ifr_addr, ifrp->ifr_addr.sa_len,
-			    hostname, NI_MAXHOST, 0, 0, flags);
+			    hostname, sizeof(hostname), 0, 0, flags);
 		sprintf(pdstaddr, "%s", hostname);
 	}
 	printf("\tphysical address %s --> %s\n", psrcaddr, pdstaddr);
@@ -576,7 +620,7 @@ in_status(force)
 #if 0
 	char *inet_ntoa();
 #endif
-
+	
 	memset(&null_sin, 0, sizeof(null_sin));
 
 	sin = (struct sockaddr_in *)info.rti_info[RTAX_IFA];
@@ -616,12 +660,13 @@ in6_status(force)
 	int force;
 {
 	struct sockaddr_in6 *sin, null_sin;
-#if 0
+	char hostname[NI_MAXHOST];
-	char *inet_ntop();
+	int niflags = NI_NUMERICHOST;
-#endif
-
 
 	memset(&null_sin, 0, sizeof(null_sin));
+#ifdef NI_WITHSCOPEID
+	niflags |= NI_WITHSCOPEID;
+#endif
 
 	sin = (struct sockaddr_in6 *)info.rti_info[RTAX_IFA];
 	if (!sin || sin->sin6_family != AF_INET6) {
@@ -630,8 +675,17 @@ in6_status(force)
 		/* warnx("%s has no AF_INET6 IFA address!", name); */
 		sin = &null_sin;
 	}
-	printf("\tinet6 %s ", inet_ntop(AF_INET6, &sin->sin6_addr,
+#ifdef __KAME__
-				ntop_buf, sizeof(ntop_buf)));
+	if (IN6_IS_ADDR_LINKLOCAL(&sin->sin6_addr)) {
+		sin->sin6_scope_id =
+			ntohs(*(u_int16_t *)&sin->sin6_addr.s6_addr[2]);
+		sin->sin6_addr.s6_addr[2] = 0;
+		sin->sin6_addr.s6_addr[3] = 0;
+	}
+#endif
+	getnameinfo((struct sockaddr *)sin, sin->sin6_len,
+		    hostname, sizeof(hostname), 0, 0, niflags);
+	printf("\tinet6 %s ", hostname);
 
 	if (flags & IFF_POINTOPOINT) {
 		/* note RTAX_BRD overlap with IFF_BROADCAST */
@@ -641,10 +695,17 @@ in6_status(force)
 		 * address.
 		 */
 		if (sin->sin6_family == AF_INET6) {
-			if (!sin)
+#ifdef __KAME__
-				sin = &null_sin;
+			if (IN6_IS_ADDR_LINKLOCAL(&sin->sin6_addr)) {
-			printf("--> %s ", inet_ntop(AF_INET6, &sin->sin6_addr,
+				sin->sin6_scope_id =
-						ntop_buf, sizeof(ntop_buf)));
+					ntohs(*(u_int16_t *)&sin->sin6_addr.s6_addr[2]);
+				sin->sin6_addr.s6_addr[2] = 0;
+				sin->sin6_addr.s6_addr[3] = 0;
+			}
+#endif
+			getnameinfo((struct sockaddr *)sin, sin->sin6_len,
+				    hostname, sizeof(hostname), 0, 0, niflags);
+			printf("--> %s ", hostname);
 		}
 	}
 
@@ -684,8 +745,6 @@ void
 Perror(cmd)
 	char *cmd;
 {
-	extern int errno;
-
 	switch (errno) {
 
 	case ENXIO:
@@ -701,7 +760,7 @@ Perror(cmd)
 	}
 }
 
-#define	SIN(x) ((struct sockaddr_in *) &(x))
+#define SIN(x) ((struct sockaddr_in *) &(x))
 struct sockaddr_in *sintab[] = {
 SIN(addreq.ifra_addr), SIN(addreq.ifra_dstaddr)};
 
@@ -728,7 +787,7 @@ in_getaddr(s, which)
 }
 
 #ifdef INET6
-#define	SIN6(x) ((struct sockaddr_in6 *) &(x))
+#define SIN6(x) ((struct sockaddr_in6 *) &(x))
 struct sockaddr_in6 *sin6tab[] = {
 SIN6(in6_addreq.ifra_addr), SIN6(in6_addreq.ifra_dstaddr)};