Package: ferm
Version: 2.0.3-1
Severity: normal
Tags: patch
(also applies to the version in sid)
The following works OK in iptables
iptables -t mangle -A PREROUTING -m connmark \! --mark 0 \
-j CONNMARK --restore-mark
but the corresponding ferm snippet doesn't:
table mangle chain PREROUTING mod connmark
!mark 0 CONNMARK restore-mark;
trying to feed that into ferm gives:
$ sudo /usr/sbin/ferm --lines --noexec test.ferm
Error in test.ferm line 1:
table mangle chain PREROUTING mod connmark ! mark 0 <--
Doesn't support negation: mark
Applying the following trivial patch to connmark definition allows
negation of the mark parameter:
diff --git a/src/ferm b/src/ferm
index 4845cfe..bcdb220 100755
--- a/src/ferm
+++ b/src/ferm
@@ -234,7 +234,7 @@ add_match_def 'comment', qw(comment=s);
add_match_def 'condition', qw(condition!);
add_match_def 'connbytes', qw(!connbytes connbytes-dir connbytes-mode);
add_match_def 'connlimit', qw(!connlimit-above connlimit-mask);
-add_match_def 'connmark', qw(mark);
+add_match_def 'connmark', qw(!mark);
add_match_def 'conntrack', qw(ctstate=c ctproto ctorigsrc! ctorigdst!),
qw(ctreplsrc! ctrepldst! ctstatus ctexpire=s);
add_match_def 'dscp', qw(dscp dscp-class);
The resulting rules for the above example are:
# Generated by ferm 2.0.5 on Mon Mar 30 12:57:12 2009
*mangle
:PREROUTING ACCEPT [0:0]
-A PREROUTING --match connmark ! --mark 0 --jump CONNMARK --restore-mark
COMMIT
Thanks for considering,
dam
-- System Information:
Debian Release: squeeze/sid
APT prefers unstable
APT policy: (500, 'unstable'), (500, 'stable'), (450, 'experimental')
Architecture: amd64 (x86_64)
Kernel: Linux 2.6.29-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=bg_BG.UTF-8, LC_CTYPE=bg_BG.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages ferm depends on:
ii debconf 1.5.26 Debian configuration management sy
ii iptables 1.4.2-6 administration tools for packet fi
ii lsb-base 3.2-22 Linux Standard Base 3.2 init scrip
ii perl 5.10.0-19 Larry Wall's Practical Extraction
ferm recommends no packages.
ferm suggests no packages.
-- debconf information:
* ferm/enable: true
--
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