Add a BOOTP_WIRED_TO option, for use on machines with multiple network

cards where the first detected card should not be used for bootp.
Submitted by:	Doug Ambrisko <ambrisko@whistle.com>

sys/conf/NOTES

@@ -2,7 +2,7 @@
 # LINT -- config file for checking all the sources, tries to pull in
 #	as much of the source tree as it can.
 #
-#	$Id: LINT,v 1.415 1998/03/09 22:09:10 eivind Exp $
+#	$Id: LINT,v 1.416 1998/03/10 15:42:13 eivind Exp $
 #
 # NB: You probably don't want to try running a kernel built from this
 # file.  Instead, you should start from GENERIC, and add options from
@@ -1375,6 +1375,7 @@ options		BOOTP		# Use BOOTP to obtain IP address/hostname
 options		BOOTP_NFSROOT	# NFS mount root filesystem using BOOTP info
 options		"BOOTP_NFSV3"	# Use NFS v3 to NFS mount root
 options		BOOTP_COMPAT	# Workaround for broken bootp daemons.
+options		"BOOTP_WIRED_TO=fxp0" # Use interface fxp0 for BOOTP
 
 #
 # An obsolete option to test kern_opt.c.

sys/conf/options

@@ -1,4 +1,4 @@
-#	$Id: options,v 1.65 1998/03/08 09:56:21 julian Exp $
+#	$Id: options,v 1.66 1998/03/10 15:55:38 eivind Exp $
 #
 #        On the handling of kernel options   
 # 
@@ -161,6 +161,7 @@ BOOTP			opt_bootp.h
 BOOTP_COMPAT		opt_bootp.h
 BOOTP_NFSROOT		opt_bootp.h
 BOOTP_NFSV3		opt_bootp.h
+BOOTP_WIRED_TO		opt_bootp.h
 GATEWAY			opt_defunct.h
 MROUTING		opt_mrouting.h
 INET			opt_inet.h

sys/i386/conf/LINT

@@ -2,7 +2,7 @@
 # LINT -- config file for checking all the sources, tries to pull in
 #	as much of the source tree as it can.
 #
-#	$Id: LINT,v 1.415 1998/03/09 22:09:10 eivind Exp $
+#	$Id: LINT,v 1.416 1998/03/10 15:42:13 eivind Exp $
 #
 # NB: You probably don't want to try running a kernel built from this
 # file.  Instead, you should start from GENERIC, and add options from
@@ -1375,6 +1375,7 @@ options		BOOTP		# Use BOOTP to obtain IP address/hostname
 options		BOOTP_NFSROOT	# NFS mount root filesystem using BOOTP info
 options		"BOOTP_NFSV3"	# Use NFS v3 to NFS mount root
 options		BOOTP_COMPAT	# Workaround for broken bootp daemons.
+options		"BOOTP_WIRED_TO=fxp0" # Use interface fxp0 for BOOTP
 
 #
 # An obsolete option to test kern_opt.c.

sys/i386/conf/NOTES

@@ -2,7 +2,7 @@
 # LINT -- config file for checking all the sources, tries to pull in
 #	as much of the source tree as it can.
 #
-#	$Id: LINT,v 1.415 1998/03/09 22:09:10 eivind Exp $
+#	$Id: LINT,v 1.416 1998/03/10 15:42:13 eivind Exp $
 #
 # NB: You probably don't want to try running a kernel built from this
 # file.  Instead, you should start from GENERIC, and add options from
@@ -1375,6 +1375,7 @@ options		BOOTP		# Use BOOTP to obtain IP address/hostname
 options		BOOTP_NFSROOT	# NFS mount root filesystem using BOOTP info
 options		"BOOTP_NFSV3"	# Use NFS v3 to NFS mount root
 options		BOOTP_COMPAT	# Workaround for broken bootp daemons.
+options		"BOOTP_WIRED_TO=fxp0" # Use interface fxp0 for BOOTP
 
 #
 # An obsolete option to test kern_opt.c.

sys/nfs/bootp_subr.c

@@ -1,4 +1,4 @@
-/*	$Id: bootp_subr.c,v 1.9 1998/02/09 06:10:32 eivind Exp $	*/
+/*	$Id: bootp_subr.c,v 1.10 1998/03/14 03:25:14 tegge Exp $	*/
 
 /*
  * Copyright (c) 1995 Gordon Ross, Adam Glass
@@ -774,14 +774,25 @@ bootpc_init(void)
   /*
    * Find a network interface.
    */
+#ifdef BOOTP_WIRED_TO
+  printf("bootpc_init: wired to interface '%s'\n",
+         __XSTRING(BOOTP_WIRED_TO)); 
+#endif
+  bzero(&ireq, sizeof(ireq));
   for (ifp = TAILQ_FIRST(&ifnet); ifp != 0; ifp = TAILQ_NEXT(ifp,if_link))
+  {
+    sprintf(ireq.ifr_name, "%s%d", ifp->if_name, ifp->if_unit);
+#ifdef BOOTP_WIRED_TO
+    if (strcmp(ireq.ifr_name, __XSTRING(BOOTP_WIRED_TO)) == 0)
+        break;
+#else
     if ((ifp->if_flags &
       (IFF_LOOPBACK|IFF_POINTOPOINT)) == 0)
 	break;
+#endif
+  }     
   if (ifp == NULL)
     panic("bootpc_init: no suitable interface");
-  bzero(&ireq,sizeof(ireq));
-  sprintf(ireq.ifr_name, "%s%d", ifp->if_name,ifp->if_unit);
   strcpy(nd->myif.ifra_name,ireq.ifr_name);
   printf("bootpc_init: using network interface '%s'\n",
 	 ireq.ifr_name);

sys/nfsclient/bootp_subr.c

@@ -1,4 +1,4 @@
-/*	$Id: bootp_subr.c,v 1.9 1998/02/09 06:10:32 eivind Exp $	*/
+/*	$Id: bootp_subr.c,v 1.10 1998/03/14 03:25:14 tegge Exp $	*/
 
 /*
  * Copyright (c) 1995 Gordon Ross, Adam Glass
@@ -774,14 +774,25 @@ bootpc_init(void)
   /*
    * Find a network interface.
    */
+#ifdef BOOTP_WIRED_TO
+  printf("bootpc_init: wired to interface '%s'\n",
+         __XSTRING(BOOTP_WIRED_TO)); 
+#endif
+  bzero(&ireq, sizeof(ireq));
   for (ifp = TAILQ_FIRST(&ifnet); ifp != 0; ifp = TAILQ_NEXT(ifp,if_link))
+  {
+    sprintf(ireq.ifr_name, "%s%d", ifp->if_name, ifp->if_unit);
+#ifdef BOOTP_WIRED_TO
+    if (strcmp(ireq.ifr_name, __XSTRING(BOOTP_WIRED_TO)) == 0)
+        break;
+#else
     if ((ifp->if_flags &
       (IFF_LOOPBACK|IFF_POINTOPOINT)) == 0)
 	break;
+#endif
+  }     
   if (ifp == NULL)
     panic("bootpc_init: no suitable interface");
-  bzero(&ireq,sizeof(ireq));
-  sprintf(ireq.ifr_name, "%s%d", ifp->if_name,ifp->if_unit);
   strcpy(nd->myif.ifra_name,ireq.ifr_name);
   printf("bootpc_init: using network interface '%s'\n",
 	 ireq.ifr_name);