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Merge pull request !1 from 严志华/master
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openeuler-ci-bot 2019-12-31 17:37:34 +08:00 committed by Gitee
commit 79db3a95a1
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29
conntrack-tools-1.4.4-free-pktb-after-use.patch Normal file
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From 832166dc4780e259424ebab07b42ecf42cde6fe3 Mon Sep 17 00:00:00 2001
From: Kevin Cernekee <cernekee@chromium.org>
Date: Fri, 27 Jan 2017 12:38:46 -0800
Subject: conntrackd: cthelper: Free pktb after use
According to valgrind, this currently leaks ~512B to 2kB for each
packet sent to the userspace helper.
Signed-off-by: Kevin Cernekee <cernekee@chromium.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
src/cthelper.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/src/cthelper.c b/src/cthelper.c
index 54eb830..f01c509 100644
--- a/src/cthelper.c
+++ b/src/cthelper.c
@@ -325,6 +325,7 @@ static int nfq_queue_cb(const struct nlmsghdr *nlh, void *data)
if (pkt_verdict_issue(helper, myct, queue_num, id, verdict, pktb) < 0)
goto err4;
+ pktb_free(pktb);
nfct_destroy(ct);
if (myct->exp != NULL)
nfexp_destroy(myct->exp);
--
cgit v0.12

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conntrack-tools-1.4.4-nat_tuple-leak.patch Normal file
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From 1ba5e76a368aeb9fe17d3b691df4faa0dadc4523 Mon Sep 17 00:00:00 2001
From: Kevin Cernekee <cernekee@chromium.org>
Date: Thu, 26 Jan 2017 16:44:24 -0800
Subject: conntrackd: cthelper: Don't leak nat_tuple
nfexp_set_attr() copies |nat_tuple| rather than taking ownership, so
it should be freed at the end of the loop. Some of the other helpers
(like rpc.c) do this, but it is missing here.
Reported-by: Eric Caruso <ejcaruso@chromium.org>
Signed-off-by: Kevin Cernekee <cernekee@chromium.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
src/helpers/amanda.c | 1 +
src/helpers/ftp.c | 1 +
src/helpers/tftp.c | 1 +
3 files changed, 3 insertions(+)
diff --git a/src/helpers/amanda.c b/src/helpers/amanda.c
index 9e6c4e7..faee1cd 100644
--- a/src/helpers/amanda.c
+++ b/src/helpers/amanda.c
@@ -75,6 +75,7 @@ static int nat_amanda(struct pkt_buff *pkt, uint32_t ctinfo,
break;
}
}
+ nfct_destroy(nat_tuple);
if (port == 0) {
pr_debug("all ports in use\n");
diff --git a/src/helpers/ftp.c b/src/helpers/ftp.c
index 27ab5eb..c3aa284 100644
--- a/src/helpers/ftp.c
+++ b/src/helpers/ftp.c
@@ -423,6 +423,7 @@ static unsigned int nf_nat_ftp(struct pkt_buff *pkt,
break;
}
}
+ nfct_destroy(nat_tuple);
if (port == 0)
return NF_DROP;
diff --git a/src/helpers/tftp.c b/src/helpers/tftp.c
index 45591c6..70dd28a 100644
--- a/src/helpers/tftp.c
+++ b/src/helpers/tftp.c
@@ -65,6 +65,7 @@ static unsigned int nat_tftp(struct pkt_buff *pkt, uint32_t ctinfo,
nfexp_set_attr_u32(exp, ATTR_EXP_NAT_DIR, MYCT_DIR_REPL);
nfexp_set_attr(exp, ATTR_EXP_FN, "nat-follow-master");
nfexp_set_attr(exp, ATTR_EXP_NAT_TUPLE, nat_tuple);
+ nfct_destroy(nat_tuple);
return NF_ACCEPT;
}
--
cgit v0.12

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conntrack-tools-1.4.4.tar.bz2 Normal file
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conntrack-tools.spec Normal file
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me: conntrack-tools
Version: 1.4.4
Release: 9
Summary: Userspace tools for interacting with the Connection Tracking System
License: GPLv2
URL: http://conntrack-tools.netfilter.org/
Source0: http://netfilter.org/projects/conntrack-tools/files/conntrack-tools-%{version}.tar.bz2
Source1: conntrackd.service
Source2: conntrackd.conf
Patch0001: conntrack-tools-1.4.4-nat_tuple-leak.patch
Patch0002: conntrack-tools-1.4.4-free-pktb-after-use.patch
BuildRequires: libnfnetlink-devel >= 1.0.1 libnetfilter_conntrack-devel >= 1.0.6 libtirpc-devel
BuildRequires: libnetfilter_cttimeout-devel >= 1.0.0 libnetfilter_cthelper-devel >= 1.0.0 systemd
BuildRequires: libmnl-devel >= 1.0.3 libnetfilter_queue-devel >= 1.0.2 pkgconfig bison flex
Provides: conntrack = 1.0-1
Obsoletes: conntrack < 1.0-1
Requires(post): systemd
Requires(preun): systemd
Requires(postun): systemd
%description
The conntrack-tools are a set of userspace tools for Linux that allow system administrators
interact with the Connection Tracking System, which is the module that provides stateful packet
inspection for iptables.The tools can be used to search, list,inspect and maintain the connection
tracking subsystem of the Linux kernel. The conntrack-tools are the userspace daemon conntrackd
and the command line interface conntrack.
%package help
Summary: Help for conntrack-tools
BuildArch: noarch
%description help
This package contains man manual for conntrack-tools.
%prep
%autosetup -n conntrack-tools-%{version} -p1
%build
%configure CPPFLAGS=-I/usr/include/tirpc LIBS=-ltirpc
%make_build
rm -f doc/sync/notrack/conntrackd.conf.orig doc/sync/alarm/conntrackd.conf.orig doc/helper/conntrackd.conf.orig
chmod 644 doc/sync/primary-backup.sh
%install
%make_install
%delete_la
install -d %{buildroot}%{_sysconfdir}/conntrackd
install -d 0755 %{buildroot}%{_unitdir}
install -m644 %{SOURCE1} %{buildroot}%{_unitdir}/
install -m644 %{SOURCE2} %{buildroot}%{_sysconfdir}/conntrackd/
%post
%systemd_post conntrackd.service
%preun
%systemd_preun conntrackd.service
%postun
%systemd_postun conntrackd.service
%files
%doc AUTHORS TODO doc COPYING
%dir %{_sysconfdir}/conntrackd
%config(noreplace) %{_sysconfdir}/conntrackd/conntrackd.conf
%{_unitdir}/conntrackd.service
%{_sbindir}/{conntrack,conntrackd,nfct}
%dir %{_libdir}/conntrack-tools
%{_libdir}/conntrack-tools/*
%files help
%{_mandir}/man5/*
%{_mandir}/man8/*
%changelog
* Tue Dec 31 2019 Tianfei <tianfei16@huawei.com> - 1.4.4-9
- Package init

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# 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
# }
}
}

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[Unit]
Description=connection tracking daemon for debugging and High Availablity
After=network-online.target
Wants=network-online.target
[Service]
Type=simple
# rhbz#1255578 daemon will not start if lock file is left dangling
ExecStartPre=/bin/rm -f /var/lock/conntrack.lock
ExecStart=/usr/sbin/conntrackd -C /etc/conntrackd/conntrackd.conf
[Install]
WantedBy=multi-user.target