Move the grekey to its own file, ifconfig.c does not have interface specific

code.

Submitted by:	sam

sbin/ifconfig/Makefile

@@ -23,6 +23,7 @@ SRCS+=	ifclone.c		# clone device support
 SRCS+=	ifmac.c			# MAC support
 SRCS+=	ifmedia.c		# SIOC[GS]IFMEDIA support
 SRCS+=	ifvlan.c		# SIOC[GS]ETVLAN support
+SRCS+=	ifgre.c			# GRE keys etc
 
 SRCS+=	ifieee80211.c regdomain.c # SIOC[GS]IEEE80211 support
 DPADD+=	${LIBBSDXML} ${LIBSBUF}

sbin/ifconfig/ifconfig.c

@@ -51,7 +51,6 @@ static const char rcsid[] =
 
 #include <net/ethernet.h>
 #include <net/if.h>
-#include <net/if_gre.h>
 #include <net/if_var.h>
 #include <net/if_dl.h>
 #include <net/if_types.h>
@@ -749,18 +748,6 @@ setifmtu(const char *val, int dummy __unused, int s,
 		warn("ioctl (set mtu)");
 }
 
-static void
-setifgrekey(const char *val, int dummy __unused, int s, 
-    const struct afswtch *afp)
-{
-	uint32_t grekey = atol(val);
-
-	strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
-	ifr.ifr_data = (caddr_t)&grekey;
-	if (ioctl(s, GRESKEY, (caddr_t)&ifr) < 0)
-		warn("ioctl (set grekey)");
-}
-
 static void
 setifname(const char *val, int dummy __unused, int s, 
     const struct afswtch *afp)
@@ -876,12 +863,6 @@ status(const struct afswtch *afp, const struct sockaddr_dl *sdl,
 	if (ioctl(s, SIOCGIFSTATUS, &ifs) == 0) 
 		printf("%s", ifs.ascii);
 
-	int grekey = 0;
-	ifr.ifr_data = (caddr_t)&grekey;
-	if (ioctl(s, GREGKEY, &ifr) == 0)
-		if (grekey != 0)
-			printf("\tgrekey: %d\n", grekey);
-
 	close(s);
 	return;
 }
@@ -1053,7 +1034,6 @@ static struct cmd basic_cmds[] = {
 	DEF_CMD("noicmp",	IFF_LINK1,	setifflags),
 	DEF_CMD_ARG("mtu",			setifmtu),
 	DEF_CMD_ARG("name",			setifname),
-	DEF_CMD_ARG("grekey",			setifgrekey),
 };
 
 static __constructor void

sbin/ifconfig/ifgre.c

@@ -0,0 +1,98 @@
+/*-
+ * Copyright (c) 2008 Andrew Thompson. All rights reserved.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 HIS RELATIVES 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 MIND, 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.
+ */
+
+#ifndef lint
+static const char rcsid[] =
+  "$FreeBSD$";
+#endif
+
+#include <sys/param.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/sockio.h>
+
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <net/ethernet.h>
+#include <net/if.h>
+#include <net/if_gre.h>
+#include <net/route.h>
+
+#include <ctype.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <err.h>
+#include <errno.h>
+
+#include "ifconfig.h"
+
+static	void gre_status(int s);
+
+static void
+gre_status(int s)
+{
+	int grekey = 0;
+
+	ifr.ifr_data = (caddr_t)&grekey;
+	if (ioctl(s, GREGKEY, &ifr) == 0)
+		if (grekey != 0)
+			printf("\tgrekey: %d\n", grekey);
+}
+
+static void
+setifgrekey(const char *val, int dummy __unused, int s, 
+    const struct afswtch *afp)
+{
+	uint32_t grekey = atol(val);
+
+	strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
+	ifr.ifr_data = (caddr_t)&grekey;
+	if (ioctl(s, GRESKEY, (caddr_t)&ifr) < 0)
+		warn("ioctl (set grekey)");
+}
+
+static struct cmd gre_cmds[] = {
+	DEF_CMD_ARG("grekey",			setifgrekey),
+};
+static struct afswtch af_gre = {
+	.af_name	= "af_gre",
+	.af_af		= AF_UNSPEC,
+	.af_other_status = gre_status,
+};
+
+static __constructor void
+gre_ctor(void)
+{
+#define	N(a)	(sizeof(a) / sizeof(a[0]))
+	int i;
+
+	for (i = 0; i < N(gre_cmds);  i++)
+		cmd_register(&gre_cmds[i]);
+	af_register(&af_gre);
+#undef N
+}