From c44cb44f7c02c30670584a5e8ed90c37e6709fba Mon Sep 17 00:00:00 2001
From: teastep <teastep@fbd18981-670d-0410-9b5c-8dc0c1a9a2bb>
Date: Sat, 9 Nov 2002 15:56:29 +0000
Subject: [PATCH] Verify interface names in the SOURCE column of
 /etc/shorewall/tcrules

git-svn-id: https://shorewall.svn.sourceforge.net/svnroot/shorewall/trunk@318 fbd18981-670d-0410-9b5c-8dc0c1a9a2bb
---
 Shorewall/firewall | 28 ++++++++++++++++------------
 1 file changed, 16 insertions(+), 12 deletions(-)

diff --git a/Shorewall/firewall b/Shorewall/firewall
index 64647672a..b44f429ae 100755
--- a/Shorewall/firewall
+++ b/Shorewall/firewall
@@ -1569,18 +1569,22 @@ process_tc_rule()
 
 	if [ "x$source" != "x-"	 ]; then
 	    case $source in
-	    *.*.*)
-		r="-s $source "
-		;;
-	    ~*)
-		r=`mac_match $source`
-		;;
-	    $FW)
-		chain=tcout
-		;;
-	    *)
-		r="-i $source "
-		;;
+		*.*.*)
+		    r="-s $source "
+		    ;;
+		~*)
+		    r=`mac_match $source`
+		    ;;
+		$FW)
+		    chain=tcout
+		    ;;
+		*)
+		    if ! list_search $source $all_interfaces; then
+			fatal_error "Error: Unknown interface $source"
+		    fi
+		    
+		    r="-i $source "
+		    ;;
 	    esac
 	fi
 	[ "x$dest"   = "x-"  ] || r="${r}-d $dest "