[conntrack-tools] * Mon May 07 2012 Paul Wouters <pwouters at redhat.com> - 1.0.1-1 - Updated to 1.0.1 - Added daemon usi
Paul Wouters
pwouters at fedoraproject.org
Tue May 8 02:19:14 UTC 2012
commit fe8bf312366c96a6a3a70e2873fe1f98a1dafd22
Author: Paul Wouters <paul at libreswan.ca>
Date: Mon May 7 21:33:06 2012 -0400
* Mon May 07 2012 Paul Wouters <pwouters at redhat.com> - 1.0.1-1
- Updated to 1.0.1
- Added daemon using systemd and configuration file
- Removed legacy spec requirements
.gitignore | 1 +
conntrack-tools.spec | 57 ++++++--
conntrackd.conf | 419 ++++++++++++++++++++++++++++++++++++++++++++++++++
conntrackd.service | 11 ++
conntrackd.sysconfig | 6 -
sources | 2 +-
6 files changed, 476 insertions(+), 20 deletions(-)
---
diff --git a/.gitignore b/.gitignore
index 4eb5016..f6f2be9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
conntrack-tools-0.9.14.tar.bz2
/conntrack-tools-0.9.15.tar.bz2
/conntrack-tools-1.0.0.tar.bz2
+/conntrack-tools-1.0.1.tar.bz2
diff --git a/conntrack-tools.spec b/conntrack-tools.spec
index 74e030a..3eb9914 100644
--- a/conntrack-tools.spec
+++ b/conntrack-tools.spec
@@ -1,18 +1,27 @@
Name: conntrack-tools
-Version: 1.0.0
-Release: 2%{?dist}
-Summary: Tools to manipulate netfilter connection tracking table
+Version: 1.0.1
+Release: 1%{?dist}
+Summary: Manipulate netfilter connection tracking table and run High Availability
Group: System Environment/Base
License: GPLv2
URL: http://netfilter.org
Source0: http://netfilter.org/projects/%{name}/files/%{name}-%{version}.tar.bz2
-BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
+Source1: conntrackd.service
+Source2: conntrackd.conf
BuildRequires: libnfnetlink-devel >= 1.0.0, libnetfilter_conntrack-devel >= 0.9.1
-BuildRequires: pkgconfig bison flex
+BuildRequires: pkgconfig bison flex
Provides: conntrack = 1.0-1
Obsoletes: conntrack < 1.0-1
+BuildRequires: systemd-units
+Requires(post): systemd-sysv
+Requires(post): systemd-units
+Requires(preun): systemd-units
+Requires(postun): systemd-units
%description
+With conntrack-tools you can setup a High Availability cluster and
+synchronize conntrack state between multiple firewalls.
+
The conntrack-tools package contains two programs:
- conntrack: the command line interface to interact with the connection
tracking system.
@@ -34,22 +43,44 @@ show an event message (one line) per newly established connection.
%build
%configure --disable-static
%{__make} %{?_smp_mflags}
+chmod 644 doc/sync/primary-backup.sh
%install
-rm -rf $RPM_BUILD_ROOT
-%{__make} install DESTDIR=$RPM_BUILD_ROOT
-
-%clean
-rm -rf $RPM_BUILD_ROOT
+%{__make} install DESTDIR=%{buildroot}
+mkdir -p %{buildroot}%{_sysconfdir}/conntrackd
+install -d 0755 %{buildroot}%{_unitdir}
+install -m 0644 %{SOURCE1} %{buildroot}%{_unitdir}/
+install -m 0644 %{SOURCE2} %{buildroot}%{_sysconfdir}/conntrackd/
%files
-%defattr(-,root,root,-)
-%doc COPYING AUTHORS INSTALL TODO doc
+%doc COPYING AUTHORS TODO doc
+%dir %{_sysconfdir}/conntrackd
+%config(noreplace) %{_sysconfdir}/conntrackd/conntrackd.conf
+%{_unitdir}/conntrackd.service
%{_sbindir}/conntrack
%{_sbindir}/conntrackd
%{_mandir}/man8/*
+%preun
+if [ $1 -eq 0 ]; then
+ # Package removal, not upgrade
+ /bin/systemctl --no-reload disable conntrackd.service > /dev/null 2>&1 || :
+ /bin/systemctl stop conntrackd.service > /dev/null 2>&1 || :
+fi
+
+%postun
+/bin/systemctl daemon-reload >/dev/null 2>&1 || :
+if [ $1 -ge 1 ] ; then
+ # Package upgrade, not uninstall
+ /bin/systemctl try-restart conntrackd.service >/dev/null 2>&1 || :
+fi
+
%changelog
+* Mon May 07 2012 Paul Wouters <pwouters at redhat.com> - 1.0.1-1
+- Updated to 1.0.1
+- Added daemon using systemd and configuration file
+- Removed legacy spec requirements
+
* Thu Jan 12 2012 Fedora Release Engineering <rel-eng at lists.fedoraproject.org> - 1.0.0-2
- Rebuilt for https://fedoraproject.org/wiki/Fedora_17_Mass_Rebuild
@@ -94,7 +125,7 @@ rm -rf $RPM_BUILD_ROOT
- remove rollup patch
* Wed Jul 16 2008 Paul P. Komkoff Jr <i at stingr.net> - 0.9.7-2
-- fix Patch0/%patch.
+- fix Patch0/%%patch.
* Wed Jul 16 2008 Paul P. Komkoff Jr <i at stingr.net> - 0.9.7-1
- new upstream version
diff --git a/conntrackd.conf b/conntrackd.conf
new file mode 100644
index 0000000..3970e91
--- /dev/null
+++ b/conntrackd.conf
@@ -0,0 +1,419 @@
+
+# See also: http://conntrack-tools.netfilter.org/support.html
+#
+# There are 3 different modes of running conntrackd: "alarm", "notrack" and "ftfw"
+#
+# The default package ships with a FTFW configuration, see /usr/share/doc/conntrackd*
+# for example configurations for other modes.
+
+
+#
+# Synchronizer settings
+#
+Sync {
+ Mode FTFW {
+ #
+ # Size of the resend queue (in objects). This is the maximum
+ # number of objects that can be stored waiting to be confirmed
+ # via acknoledgment. If you keep this value low, the daemon
+ # will have less chances to recover state-changes under message
+ # omission. On the other hand, if you keep this value high,
+ # the daemon will consume more memory to store dead objects.
+ # Default is 131072 objects.
+ #
+ # ResendQueueSize 131072
+
+ #
+ # This parameter allows you to set an initial fixed timeout
+ # for the committed entries when this node goes from backup
+ # to primary. This mechanism provides a way to purge entries
+ # that were not recovered appropriately after the specified
+ # fixed timeout. If you set a low value, TCP entries in
+ # Established states with no traffic may hang. For example,
+ # an SSH connection without KeepAlive enabled. If not set,
+ # the daemon uses an approximate timeout value calculation
+ # mechanism. By default, this option is not set.
+ #
+ # CommitTimeout 180
+
+ #
+ # If the firewall replica goes from primary to backup,
+ # the conntrackd -t command is invoked in the script.
+ # This command schedules a flush of the table in N seconds.
+ # This is useful to purge the connection tracking table of
+ # zombie entries and avoid clashes with old entries if you
+ # trigger several consecutive hand-overs. Default is 60 seconds.
+ #
+ # PurgeTimeout 60
+
+ # Set the acknowledgement window size. If you decrease this
+ # value, the number of acknowlegdments increases. More
+ # acknowledgments means more overhead as conntrackd has to
+ # handle more control messages. On the other hand, if you
+ # increase this value, the resend queue gets more populated.
+ # This results in more overhead in the queue releasing.
+ # The following value is based on some practical experiments
+ # measuring the cycles spent by the acknowledgment handling
+ # with oprofile. If not set, default window size is 300.
+ #
+ # ACKWindowSize 300
+
+ #
+ # This clause allows you to disable the external cache. Thus,
+ # the state entries are directly injected into the kernel
+ # conntrack table. As a result, you save memory in user-space
+ # but you consume slots in the kernel conntrack table for
+ # backup state entries. Moreover, disabling the external cache
+ # means more CPU consumption. You need a Linux kernel
+ # >= 2.6.29 to use this feature. By default, this clause is
+ # set off. If you are installing conntrackd for first time,
+ # please read the user manual and I encourage you to consider
+ # using the fail-over scripts instead of enabling this option!
+ #
+ # DisableExternalCache Off
+ }
+
+ #
+ # Multicast IP and interface where messages are
+ # broadcasted (dedicated link). IMPORTANT: Make sure
+ # that iptables accepts traffic for destination
+ # 225.0.0.50, eg:
+ #
+ # iptables -I INPUT -d 225.0.0.50 -j ACCEPT
+ # iptables -I OUTPUT -d 225.0.0.50 -j ACCEPT
+ #
+ Multicast {
+ #
+ # Multicast address: The address that you use as destination
+ # in the synchronization messages. You do not have to add
+ # this IP to any of your existing interfaces. If any doubt,
+ # do not modify this value.
+ #
+ IPv4_address 225.0.0.50
+
+ #
+ # The multicast group that identifies the cluster. If any
+ # doubt, do not modify this value.
+ #
+ Group 3780
+
+ #
+ # IP address of the interface that you are going to use to
+ # send the synchronization messages. Remember that you must
+ # use a dedicated link for the synchronization messages.
+ #
+ IPv4_interface 192.168.100.100
+
+ #
+ # The name of the interface that you are going to use to
+ # send the synchronization messages.
+ #
+ Interface eth2
+
+ # The multicast sender uses a buffer to enqueue the packets
+ # that are going to be transmitted. The default size of this
+ # socket buffer is available at /proc/sys/net/core/wmem_default.
+ # This value determines the chances to have an overrun in the
+ # sender queue. The overrun results packet loss, thus, losing
+ # state information that would have to be retransmitted. If you
+ # notice some packet loss, you may want to increase the size
+ # of the sender buffer. The default size is usually around
+ # ~100 KBytes which is fairly small for busy firewalls.
+ #
+ SndSocketBuffer 1249280
+
+ # The multicast receiver uses a buffer to enqueue the packets
+ # that the socket is pending to handle. The default size of this
+ # socket buffer is available at /proc/sys/net/core/rmem_default.
+ # This value determines the chances to have an overrun in the
+ # receiver queue. The overrun results packet loss, thus, losing
+ # state information that would have to be retransmitted. If you
+ # notice some packet loss, you may want to increase the size of
+ # the receiver buffer. The default size is usually around
+ # ~100 KBytes which is fairly small for busy firewalls.
+ #
+ RcvSocketBuffer 1249280
+
+ #
+ # Enable/Disable message checksumming. This is a good
+ # property to achieve fault-tolerance. In case of doubt, do
+ # not modify this value.
+ #
+ Checksum on
+ }
+ #
+ # You can specify more than one dedicated link. Thus, if one dedicated
+ # link fails, conntrackd can fail-over to another. Note that adding
+ # more than one dedicated link does not mean that state-updates will
+ # be sent to all of them. There is only one active dedicated link at
+ # a given moment. The `Default' keyword indicates that this interface
+ # will be selected as the initial dedicated link. You can have
+ # up to 4 redundant dedicated links. Note: Use different multicast
+ # groups for every redundant link.
+ #
+ # Multicast Default {
+ # IPv4_address 225.0.0.51
+ # Group 3781
+ # IPv4_interface 192.168.100.101
+ # Interface eth3
+ # # SndSocketBuffer 1249280
+ # # RcvSocketBuffer 1249280
+ # Checksum on
+ # }
+
+ #
+ # You can use Unicast UDP instead of Multicast to propagate events.
+ # Note that you cannot use unicast UDP and Multicast at the same
+ # time, you can only select one.
+ #
+ # UDP {
+ #
+ # UDP address that this firewall uses to listen to events.
+ #
+ # IPv4_address 192.168.2.100
+ #
+ # or you may want to use an IPv6 address:
+ #
+ # IPv6_address fe80::215:58ff:fe28:5a27
+
+ #
+ # Destination UDP address that receives events, ie. the other
+ # firewall's dedicated link address.
+ #
+ # IPv4_Destination_Address 192.168.2.101
+ #
+ # or you may want to use an IPv6 address:
+ #
+ # IPv6_Destination_Address fe80::2d0:59ff:fe2a:775c
+
+ #
+ # UDP port used
+ #
+ # Port 3780
+
+ #
+ # The name of the interface that you are going to use to
+ # send the synchronization messages.
+ #
+ # Interface eth2
+
+ #
+ # The sender socket buffer size
+ #
+ # SndSocketBuffer 1249280
+
+ #
+ # The receiver socket buffer size
+ #
+ # RcvSocketBuffer 1249280
+
+ #
+ # Enable/Disable message checksumming.
+ #
+ # Checksum on
+ # }
+
+ #
+ # Other unsorted options that are related to the synchronization.
+ #
+ # Options {
+ #
+ # TCP state-entries have window tracking disabled by default,
+ # you can enable it with this option. As said, default is off.
+ # This feature requires a Linux kernel >= 2.6.36.
+ #
+ # TCPWindowTracking Off
+ # }
+}
+
+#
+# General settings
+#
+General {
+ #
+ # Set the nice value of the daemon, this value goes from -20
+ # (most favorable scheduling) to 19 (least favorable). Using a
+ # very low value reduces the chances to lose state-change events.
+ # Default is 0 but this example file sets it to most favourable
+ # scheduling as this is generally a good idea. See man nice(1) for
+ # more information.
+ #
+ Nice -20
+
+ #
+ # Select a different scheduler for the daemon, you can select between
+ # RR and FIFO and the process priority (minimum is 0, maximum is 99).
+ # See man sched_setscheduler(2) for more information. Using a RT
+ # scheduler reduces the chances to overrun the Netlink buffer.
+ #
+ # Scheduler {
+ # Type FIFO
+ # Priority 99
+ # }
+
+ #
+ # Number of buckets in the cache hashtable. The bigger it is,
+ # the closer it gets to O(1) at the cost of consuming more memory.
+ # Read some documents about tuning hashtables for further reference.
+ #
+ HashSize 32768
+
+ #
+ # Maximum number of conntracks, it should be double of:
+ # $ cat /proc/sys/net/netfilter/nf_conntrack_max
+ # since the daemon may keep some dead entries cached for possible
+ # retransmission during state synchronization.
+ #
+ HashLimit 131072
+
+ #
+ # Logfile: on (/var/log/conntrackd.log), off, or a filename
+ # Default: off
+ #
+ LogFile on
+
+ #
+ # Syslog: on, off or a facility name (daemon (default) or local0..7)
+ # Default: off
+ #
+ #Syslog on
+
+ #
+ # Lockfile
+ #
+ LockFile /var/lock/conntrack.lock
+
+ #
+ # Unix socket configuration
+ #
+ UNIX {
+ Path /var/run/conntrackd.ctl
+ Backlog 20
+ }
+
+ #
+ # Netlink event socket buffer size. If you do not specify this clause,
+ # the default buffer size value in /proc/net/core/rmem_default is
+ # used. This default value is usually around 100 Kbytes which is
+ # fairly small for busy firewalls. This leads to event message dropping
+ # and high CPU consumption. This example configuration file sets the
+ # size to 2 MBytes to avoid this sort of problems.
+ #
+ NetlinkBufferSize 2097152
+
+ #
+ # The daemon doubles the size of the netlink event socket buffer size
+ # if it detects netlink event message dropping. This clause sets the
+ # maximum buffer size growth that can be reached. This example file
+ # sets the size to 8 MBytes.
+ #
+ NetlinkBufferSizeMaxGrowth 8388608
+
+ #
+ # If the daemon detects that Netlink is dropping state-change events,
+ # it automatically schedules a resynchronization against the Kernel
+ # after 30 seconds (default value). Resynchronizations are expensive
+ # in terms of CPU consumption since the daemon has to get the full
+ # kernel state-table and purge state-entries that do not exist anymore.
+ # Be careful of setting a very small value here. You have the following
+ # choices: On (enabled, use default 30 seconds value), Off (disabled)
+ # or Value (in seconds, to set a specific amount of time). If not
+ # specified, the daemon assumes that this option is enabled.
+ #
+ # NetlinkOverrunResync On
+
+ #
+ # If you want reliable event reporting over Netlink, set on this
+ # option. If you set on this clause, it is a good idea to set off
+ # NetlinkOverrunResync. This option is off by default and you need
+ # a Linux kernel >= 2.6.31.
+ #
+ # NetlinkEventsReliable Off
+
+ #
+ # By default, the daemon receives state updates following an
+ # event-driven model. You can modify this behaviour by switching to
+ # polling mode with the PollSecs clause. This clause tells conntrackd
+ # to dump the states in the kernel every N seconds. With regards to
+ # synchronization mode, the polling mode can only guarantee that
+ # long-lifetime states are recovered. The main advantage of this method
+ # is the reduction in the state replication at the cost of reducing the
+ # chances of recovering connections.
+ #
+ # PollSecs 15
+
+ #
+ # The daemon prioritizes the handling of state-change events coming
+ # from the core. With this clause, you can set the maximum number of
+ # state-change events (those coming from kernel-space) that the daemon
+ # will handle after which it will handle other events coming from the
+ # network or userspace. A low value improves interactivity (in terms of
+ # real-time behaviour) at the cost of extra CPU consumption.
+ # Default (if not set) is 100.
+ #
+ # EventIterationLimit 100
+
+ #
+ # Event filtering: This clause allows you to filter certain traffic,
+ # There are currently three filter-sets: Protocol, Address and
+ # State. The filter is attached to an action that can be: Accept or
+ # Ignore. Thus, you can define the event filtering policy of the
+ # filter-sets in positive or negative logic depending on your needs.
+ # You can select if conntrackd filters the event messages from
+ # user-space or kernel-space. The kernel-space event filtering
+ # saves some CPU cycles by avoiding the copy of the event message
+ # from kernel-space to user-space. The kernel-space event filtering
+ # is prefered, however, you require a Linux kernel >= 2.6.29 to
+ # filter from kernel-space. If you want to select kernel-space
+ # event filtering, use the keyword 'Kernelspace' instead of
+ # 'Userspace'.
+ #
+ Filter From Userspace {
+ #
+ # Accept only certain protocols: You may want to replicate
+ # the state of flows depending on their layer 4 protocol.
+ #
+ Protocol Accept {
+ TCP
+ SCTP
+ DCCP
+ # UDP
+ # ICMP # This requires a Linux kernel >= 2.6.31
+ # IPv6-ICMP # This requires a Linux kernel >= 2.6.31
+ }
+
+ #
+ # Ignore traffic for a certain set of IP's: Usually all the
+ # IP assigned to the firewall since local traffic must be
+ # ignored, only forwarded connections are worth to replicate.
+ # Note that these values depends on the local IPs that are
+ # assigned to the firewall.
+ #
+ Address Ignore {
+ IPv4_address 127.0.0.1 # loopback
+ IPv4_address 192.168.0.100 # virtual IP 1
+ IPv4_address 192.168.1.100 # virtual IP 2
+ IPv4_address 192.168.0.1
+ IPv4_address 192.168.1.1
+ IPv4_address 192.168.100.100 # dedicated link ip
+ #
+ # You can also specify networks in format IP/cidr.
+ # IPv4_address 192.168.0.0/24
+ #
+ # You can also specify an IPv6 address
+ # IPv6_address ::1
+ }
+
+ #
+ # Uncomment this line below if you want to filter by flow state.
+ # This option introduces a trade-off in the replication: it
+ # reduces CPU consumption at the cost of having lazy backup
+ # firewall replicas. The existing TCP states are: SYN_SENT,
+ # SYN_RECV, ESTABLISHED, FIN_WAIT, CLOSE_WAIT, LAST_ACK,
+ # TIME_WAIT, CLOSED, LISTEN.
+ #
+ # State Accept {
+ # ESTABLISHED CLOSED TIME_WAIT CLOSE_WAIT for TCP
+ # }
+ }
+}
diff --git a/conntrackd.service b/conntrackd.service
new file mode 100644
index 0000000..25d0aac
--- /dev/null
+++ b/conntrackd.service
@@ -0,0 +1,11 @@
+[Unit]
+Description=connection tracking daemon for debugging and High Availablity
+After=syslog.target network.target
+
+[Service]
+Type=simple
+#PIDFile=/var/run/xl2tpd/xl2tpd.pid
+ExecStart=/usr/sbin/conntrackd -d -C /etc/conntrackd/conntrackd.conf
+
+[Install]
+WantedBy=multi-user.target
diff --git a/sources b/sources
index ab8af58..4b93ca2 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-5add24d4761baf17af630d5627a71752 conntrack-tools-1.0.0.tar.bz2
+8a60f02a177fc31fe40cc992c4de90e2 conntrack-tools-1.0.1.tar.bz2
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