Mercurial > ~darius > hgwebdir.cgi > update-pg
changeset 0:58a9d49b4ae5
A script to fetch the peerguardian list and add it to pf in small pieces so we don't
get out of memory errors. Uses tableutil.
| author | darius@midget.dons.net.au |
|---|---|
| date | Fri, 23 Nov 2007 10:11:27 +1030 |
| parents | |
| children | b03231a4dcf0 |
| files | update-pg |
| diffstat | 1 files changed, 59 insertions(+), 0 deletions(-) [+] |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/update-pg Fri Nov 23 10:11:27 2007 +1030 @@ -0,0 +1,59 @@ +#!/bin/sh + +# +# Update the peer guardian table in pf +# + +TABLE=peerguardian +URL=http://peerguardian.sourceforge.net/lists/p2p.php +BASE=/var/db/peerguardian +IPSATONCE=10000 + +if [ ! -w $BASE ]; then + echo "Can't write to $BASE, giving up" >&2 + exit 1 +fi + +# Fetch new list +# Use mirror mode to save bandwidth +cd $BASE +fetch -dqm $URL +if [ $? -ne 0 ]; then + echo "Unable to fetch new list" >&2 + exit 1 +fi + +if [ -e $BASE/lastupdate -a ! $BASE/lastupdate -ot $BASE/p2p.php ]; then + echo "No update required" >&2 + exit 0 +fi + +p7zip -d <$BASE/p2p.php | sed "s/.*:\([0-9.-]\)/\1/" | tableutil -c '$whitelist = {203.31.81.0/24, 144.110.0.0/16}; $blacklist = load(text, "/dev/stdin"); $wlinv = invert($whitelist); $blocklist = intersect($wlinv, $blacklist); save(cidr, "/dev/stdout", $blocklist);' >$BASE/p2p-blocklist.txt +if [ $? -ne 0 ]; then + echo "Couldn't unpack or process blocklist" + rm -f $BASE/p2p-blocklist.txt + exit 1 +fi + +pfctl -q -T flush -t $TABLE +if [ $? -ne 0 ]; then + echo "Couldn't flush table" + rm -f $BASE/p2p-blocklist.txt + exit 1 +fi + +# Do the update in bits or pf can't allocate enough memory +len=$((`wc -l <$BASE/p2p-blocklist.txt`)) +for i in `jot - $IPSATONCE $len $IPSATONCE` $len; do + tail -${i} $BASE/p2p-blocklist.txt >$BASE/partial + pfctl -q -t $TABLE -T add -f $BASE/partial + if [ $? -ne 0 ]; then + echo "Failed to update table" >&2 + rm -f $BASE/p2p-blocklist.txt $BASE/partial + exit 1 + fi +done + +rm -f $BASE/p2p-blocklist.txt $BASE/partial +touch $BASE/lastupdate +