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authorRobin H. Johnson <robbat2@gentoo.org>2016-06-03 17:33:08 -0700
committerRobin H. Johnson <robbat2@gentoo.org>2016-06-03 17:33:20 -0700
commit484498f47913afcc44e9d3219a457e044eebe8d1 (patch)
tree2c7ea1967785bc43281186b4aa6342c45b6165fe /net-firewall/ipset/files/ipset.initd-r4
parentdev-perl/Term-ProgressBar: Remove old (diff)
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net-firewall/ipset: bug #554904 bump.
Package-Manager: portage-2.2.28
Diffstat (limited to 'net-firewall/ipset/files/ipset.initd-r4')
-rw-r--r--net-firewall/ipset/files/ipset.initd-r496
1 files changed, 96 insertions, 0 deletions
diff --git a/net-firewall/ipset/files/ipset.initd-r4 b/net-firewall/ipset/files/ipset.initd-r4
new file mode 100644
index 00000000000..d3e84091281
--- /dev/null
+++ b/net-firewall/ipset/files/ipset.initd-r4
@@ -0,0 +1,96 @@
+#!/sbin/openrc-run
+# Copyright 1999-2013 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+extra_commands="save"
+extra_started_commands="reload"
+
+IPSET_SAVE=${IPSET_SAVE:-/var/lib/ipset/rules-save}
+
+depend() {
+ before iptables ip6tables
+}
+
+checkconfig() {
+ if [ ! -f "${IPSET_SAVE}" ] ; then
+ eerror "Not starting ${SVCNAME}. First create some rules then run:"
+ eerror "/etc/init.d/${SVCNAME} save"
+ return 1
+ fi
+ return 0
+}
+
+start() {
+ checkconfig || return 1
+ ebegin "Loading ipset session"
+ ipset restore < "${IPSET_SAVE}"
+ eend $?
+}
+
+stop() {
+ # check if there are any references to current sets
+
+ if ! ipset list | gawk '
+ ($1 == "References:") { refcnt += $2 }
+ ($1 == "Type:" && $2 == "list:set") { set = 1 }
+ (scan) { if ($0 != "") setcnt++; else { scan = 0; set = 0 } }
+ (set && $1 == "Members:") {scan = 1}
+ END { if ((refcnt - setcnt) > 0) exit 1 }
+ '; then
+ eerror "ipset is in use, can't stop"
+ return 1
+ fi
+
+ if [ "${SAVE_ON_STOP}" = "yes" ] ; then
+ save || return 1
+ fi
+
+ ebegin "Removing kernel IP sets"
+ ipset flush
+ ipset destroy
+ eend $?
+}
+
+reload() {
+ ebegin "Reloading ipsets"
+
+ # Loading sets from a save file is only additive (there is no
+ # automatic flushing or replacing). And, we can not remove sets
+ # that are currently used in existing iptables rules.
+ #
+ # Instead, we create new temp sets for any set that is already
+ # in use, and then atomically swap them into place.
+ #
+ # XXX: This does not clean out previously used ipsets that are
+ # not in the new saved policy--it can't, because they may still
+ # be referenced in the current iptables rules.
+
+ # Build a list of all currently used sets (if any).
+ running_ipset_list=$(ipset save | gawk '/^create/{printf "%s ",$2}')
+ running_ipset_list="${running_ipset_list% }"
+ # Build a regular expression that matches those set names.
+ running_ipset_list_regex="$(echo "$running_ipset_list" | tr -s ' ' '|' )"
+
+ # Load up sets from the save file, but rename any set that already
+ # exists to a temporary name that we will swap later.
+ if ! cat ${IPSET_SAVE} | sed -r "s/^(create|add) (${running_ipset_list_regex}) /\1 \2_atomic_temp /" | ipset restore ; then
+ eend $? "Failed to load new ipsets"
+ fi
+
+ # Now for every set name that currently exists, atomically swap it
+ # with the temporary new one we created, and then destroy the old set.
+ for ipset_name in ${running_ipset_list} ; do
+ ipset swap ${ipset_name} ${ipset_name}_atomic_temp || eend $? "Failed to swap in new ipset $ipset_name"
+ ipset destroy ${ipset_name}_atomic_temp || eend $? "Failed to delete obsolete ipset ${ipset_name}_atomic_temp"
+ done
+ eend 0
+}
+
+save() {
+ ebegin "Saving ipset session"
+ touch "${IPSET_SAVE}"
+ chmod 0600 "${IPSET_SAVE}"
+ ipset save > "${IPSET_SAVE}"
+ eend $?
+}