summaryrefslogtreecommitdiffstats
path: root/arptables-restore
diff options
context:
space:
mode:
authorBart De Schuymer <bdschuym@pandora.be>2005-06-14 19:27:53 +0000
committerBart De Schuymer <bdschuym@pandora.be>2005-06-14 19:27:53 +0000
commitb8b9d15edc59dcdd36fff26ed825363e47dbe27b (patch)
tree19e71a07b5f9cad58150835b880a70f29eed6a99 /arptables-restore
parenteecf3118351ae866af6182792a5769f63ae94c69 (diff)
Rok Papez <rok.papez_at_ames.si>
Diffstat (limited to 'arptables-restore')
-rw-r--r--arptables-restore71
1 files changed, 71 insertions, 0 deletions
diff --git a/arptables-restore b/arptables-restore
new file mode 100644
index 0000000..d672d54
--- /dev/null
+++ b/arptables-restore
@@ -0,0 +1,71 @@
+#!/usr/bin/perl -w
+#
+#
+# A script that imports text ebtables rules. Similar to iptables-restore.
+# It can be used to restore configuration from /etc/sysconfig/ebtables.
+#
+
+use strict;
+my $tool = "/sbin/arptables";
+my $table;
+my $rc;
+my $line;
+
+# ==============================
+# clear_arptables
+# - sets policy to accept
+# - flushes chains
+# - removes custom chains
+# ==============================
+sub clear_arptables {
+ $rc = `$tool -P INPUT ACCEPT`;
+ unless($? == 0) { print "ERROR: $rc\n"; exit -1 };
+ $rc = `$tool -P FORWARD ACCEPT`;
+ unless($? == 0) { print "ERROR: $rc\n"; exit -1 };
+ $rc = `$tool -P OUTPUT ACCEPT`;
+ unless($? == 0) { print "ERROR: $rc\n"; exit -1 };
+
+ $rc = `$tool -F`;
+ unless($? == 0) { print "ERROR: $rc\n"; exit -1 };
+
+ $rc = `$tool -L`;
+ unless($? == 0) { print "ERROR: $rc\n"; exit -1 };
+
+ foreach $line (split("\n",$rc)) {
+ unless ($line =~ m/Chain\s(.*?)\s\(.*references\)/) { next; }
+ $rc = `$tool -X $1`;
+ unless($? == 0) { print "ERROR: $rc\n"; exit -1 };
+ }
+}
+# ==============================
+
+
+unless (-x $tool) { print "ERROR: $tool isn't executable\n"; exit -1; };
+&clear_arptables();
+
+$line = 0;
+while(<>) {
+ $line++;
+ if(m/^#/) { next; };
+ if(m/^$/) { next; };
+
+ if(m/^\*(.*)/) {
+ $table = $1;
+ next;
+ }
+
+ # Process a chain directive
+ if(m/^\:(.*?)\s(.*)/) {
+ # is it a user or a built in chain ?
+ if ("$2" eq "-") {
+ $rc = `$tool -t $table -N $1`;
+ unless($? == 0) {print "ERROR(line $line): $rc\n"; exit -1};
+ next;
+ }
+ $rc = `$tool -t $table -P $1 $2`;
+ unless($? == 0) {print "ERROR(line $line): $rc\n"; exit -1};
+ next;
+ }
+ $rc = `$tool -t $table $_`;
+ unless($? == 0) {print "ERROR(line $line): $rc\n"; exit -1};
+}