shorewall_code/STABLE/releasenotes.txt

Shorewall 2.0.17

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Problems Corrected in version 2.0.4

1)  A DNAT rule with 'fw' as the source that specified logging caused
    "shorewall start" to fail.

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Problems Corrected in version 2.0.5

1) Eliminated "$RESTOREBASE: ambiguous redirect" messages during 
   "shorewll stop" in the case where DISABLE_IPV6=Yes in 
   shorewall.conf.

2) An anachronistic reference to the mangle option was removed from
   shorewall.conf.

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Problems Corrected in version 2.0.6

1) Some users have reported the pkttype match option in iptables/
   Netfilter failing to match certain broadcast packets. The result 
   is that the firewall log shows a lot of broadcast packets.

   Other users have complained of the following message when 
   starting Shorewall:

	    modprobe: cant locate module ipt_pkttype

   Users experiencing either of these problems can use PKTTYPE=No in
   shorewall.conf to cause Shorewall to use IP address filtering of 
   broadcasts rather than packet type.

2) The shorewall.conf and zones file are no longer given execute
   permission by the installer script.

3) ICMP packets that are in the INVALID state are now dropped by the
   Reject and Drop default actions. They do so using the new 
   'dropInvalid' builtin action.
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Problems Corrected in version 2.0.7

1) The PKTTYPE option introduced in version 2.0.6 is now used when
   generating rules to REJECT packets. Broadcast packets are silently
   dropped rather than being rejected with an ICMP (which is a protocol
   violation) and users whose kernels have broken packet type match
   support are likely to see messages reporting this violation.
   Setting PKTTYPE=No should cause these messages to cease. 

2) Multiple interfaces with the 'blacklist' option no longer result in
   an error message at startup.

3) The following has been added to /etc/shorewall/bogons:

       0.0.0.0	 RETURN

   This prevents the 'nobogons' option from logging DHCP 'DISCOVER'
   broadcasts. 
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New Features in version 2.0.7

1) To improve supportability, the "shorewall status" command now
   includes IP and Route configuration information.

   Example:

   IP Configuration

   1: lo: <LOOPBACK,UP> mtu 16436 qdisc noqueue
      link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
      inet 127.0.0.1/8 brd 127.255.255.255 scope host lo
      inet6 ::1/128 scope host
   2: eth0: <BROADCAST,MULTICAST,PROMISC,UP> mtu 1500 qdisc pfifo_fast qlen 1000
      link/ether 00:a0:c9:15:39:78 brd ff:ff:ff:ff:ff:ff
      inet6 fe80::2a0:c9ff:fe15:3978/64 scope link
   3: eth1: <BROADCAST,MULTICAST,PROMISC,UP> mtu 1500 qdisc pfifo_fast qlen 1000
      link/ether 00:a0:c9:a7:d7:bf brd ff:ff:ff:ff:ff:ff
      inet6 fe80::2a0:c9ff:fea7:d7bf/64 scope link
   5: sit0@NONE: <NOARP> mtu 1480 qdisc noop
      link/sit 0.0.0.0 brd 0.0.0.0
   6: eth2: <BROADCAST,MULTICAST,PROMISC,UP> mtu 1500 qdisc pfifo_fast qlen 1000
      link/ether 00:40:d0:07:3a:1b brd ff:ff:ff:ff:ff:ff
      inet6 fe80::240:d0ff:fe07:3a1b/64 scope link
   7: br0: <BROADCAST,MULTICAST,NOTRAILERS,UP> mtu 1500 qdisc noqueue
      link/ether 00:40:d0:07:3a:1b brd ff:ff:ff:ff:ff:ff
      inet 192.168.1.3/24 brd 192.168.1.255 scope global br0
      inet6 fe80::240:d0ff:fe07:3a1b/64 scope link

   Routing Rules

   0:      from all lookup local	
   32765:  from all fwmark       ca lookup www.out
   32766:  from all lookup main
   32767:  from all lookup default

   Table local:

   broadcast 192.168.1.0 dev br0  proto kernel  scope link  src 192.168.1.3
   broadcast 127.255.255.255 dev lo  proto kernel  scope link  src 127.0.0.1
   local 192.168.1.3 dev br0  proto kernel  scope host  src 192.168.1.3
   broadcast 192.168.1.255 dev br0  proto kernel  scope link  src 192.168.1.3
   broadcast 127.0.0.0 dev lo  proto kernel  scope link  src 127.0.0.1
   local 127.0.0.1 dev lo  proto kernel  scope host  src 127.0.0.1
   local 127.0.0.0/8 dev lo  proto kernel  scope host  src 127.0.0.1

   Table www.out:

   default via 192.168.1.3 dev br0

   Table main:

   192.168.1.0/24 dev br0  proto kernel  scope link  src 192.168.1.3
   default via 192.168.1.254 dev br0

   Table default:
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Problems Corrected in version 2.0.8

1) User/group restricted rules now work in actions.

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Problems Corrected in version 2.0.9

1) Previously, an empty PROTO column or a value of "all" in that column
   would cause errors when processing the /etc/shorewall/tcrules file.

New Fewatures in version 2.0.9

1) The "shorewall status" command now includes the output of "brctl
   show" if the bridge tools are installed.
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Problems corrected in version 2.0.10

1) The GATEWAY column was previously ignored in 'pptpserver' entries in
   /etc/shorewall/tunnels.

2) When log rule numbers are included in the LOGFORMAT, duplicate
   rule numbers could previously be generated.

3) The /etc/shorewall/tcrules file now includes a note to the effect
   that rule evaluation continues after a match.

4) The error message produced if Shorewall couldn't obtain the routes 
   through an interface named in the SUBNET column of
   /etc/shorewall/masq was less than helpful since it didn't include
   the interface name.
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New Features in 2.0.10

The "shorewall status" command has been enhanced to include the values
of key /proc settings:

Example from a two-interface firewall:

/proc

   /proc/sys/net/ipv4/ip_forward = 1
   /proc/sys/net/ipv4/conf/all/proxy_arp = 0
   /proc/sys/net/ipv4/conf/all/arp_filter = 0
   /proc/sys/net/ipv4/conf/all/rp_filter = 0
   /proc/sys/net/ipv4/conf/default/proxy_arp = 0
   /proc/sys/net/ipv4/conf/default/arp_filter = 0
   /proc/sys/net/ipv4/conf/default/rp_filter = 0
   /proc/sys/net/ipv4/conf/eth0/proxy_arp = 0
   /proc/sys/net/ipv4/conf/eth0/arp_filter = 0
   /proc/sys/net/ipv4/conf/eth0/rp_filter = 0
   /proc/sys/net/ipv4/conf/eth1/proxy_arp = 0
   /proc/sys/net/ipv4/conf/eth1/arp_filter = 0
   /proc/sys/net/ipv4/conf/eth1/rp_filter = 0
   /proc/sys/net/ipv4/conf/lo/proxy_arp = 0
   /proc/sys/net/ipv4/conf/lo/arp_filter = 0
   /proc/sys/net/ipv4/conf/lo/rp_filter = 0

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Problems corrected in 2.0.11

1) The INSTALL file now include special instructions for Slackware
   users.

2) The bogons file has been updated.

3) Service names are replaced by port numbers in /etc/shorewall/tos.

4) A typo in the install.sh file that caused an error during a new
install has been corrected.
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New Features in 2.0.11

1) The AllowNNTP action now allows NNTP over SSL/TLS (NTTPS).

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Problems corrected in 2.0.12

1) A typo in shorewall.conf (NETNOTSYN) has been corrected.

2) The "shorewall add" and "shorewall delete" commands now work in a
   bridged environment. The syntax is:

	   shorewall add <interface>[:<port>]:<address> <zone>
	   shorewall delete <interface>[:<port>]:<address> <zone>

   Examples:

	   shorewall add br0:eth2:192.168.1.3 OK
	   shorewall delete br0:eth2:192.168.1.3 OK

3) Previously, "shorewall save" created an out-of-sequence restore
   script. The commands saved in the user's /etc/shorewall/start script
   were executed prior to the Netfilter configuration being
   restored. This has been corrected so that "shorewall save" now
   places those commands at the end of the script. 

   To accomplish this change, the "restore base" file
   (/var/lib/shorewall/restore-base) has been split into two files:

   /var/lib/shorewall/restore-base -- commands to be executed before
   Netfilter the configuration is restored.

   /var/lib/shorewall/restore-tail -- commands to be executed after the
   Netfilter configuration is restored.

4) Previously, traffic from the firewall to a dynamic zone member host
   did not need to match the interface specified when the host was
   added to the zone. For example, if eth0:1.2.3.4 is added to dynamic
   zone Z then traffic out of any firewall interface to 1.2.3.4 will
   obey the fw->Z policies and rules. This has been corrected.

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New Features in 2.0.12

1)  Variable expansion may now be used with the INCLUDE directive.

    Example:

	/etc/shorewall/params

	    FILE=/etc/foo/bar

        Any other config file:

	    INCLUDE $FILE
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Problems corrected in 2.0.13

1) A typo in /usr/share/shorewall/firewall caused the following:

   /usr/share/shorewall/firewall: line 1: match_destination_hosts: command 
   not found
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New Features in 2.0.14

1)  Previously, when rate-limiting was specified in
    /etc/shorewall/policy (LIMIT:BURST column), any traffic which
    exceeded the specified rate was silently dropped. Now, if a log
    level is given in the entry (LEVEL column) then drops are logged at
    that level at a rate of 5/min with a burst of 5.
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Problems corrected in 2.0.14

1)  A typo in the /etc/shorewall/interfaces file has been fixed.

2)  "bad variable" error messages occurring during "shorewall stop" and
    "shorewall clear" have been eliminated.

3)  A misleading typo in /etc/shorewall/tunnels has been corrected.
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Problems corrected in 2.0.15

1)  The range of ports opened by the AllowTrcrt action has been
    expanded to 33434:33524.

2)  Code mis-ported from 2.2.0 caused the following error during
    "shorewall start" where SYN rate-limiting is present in
    /etc/shorewall/policy:

      Bad argument `DROP'
      Try `iptables -h' or 'iptables --help' for more information.
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New Features in 2.0.16

1)  Recent 2.6 kernels include code that evaluates TCP packets based on
    TCP Window analysis. This can cause packets that were previously
    classified as NEW or ESTABLISHED to be classified as INVALID.

    The new kernel code can be disabled by including this command in
    your /etc/shorewall/init file:

    echo 1 > /proc/sys/net/ipv4/netfilter/ip_conntrack_tcp_be_liberal

    Additional kernel logging about INVALID TCP packets may be
    obtained by adding this command to /etc/shorewall/init:

    echo 1 > /proc/sys/net/ipv4/netfilter/ip_conntrack_log_invalid

    Traditionally, Shorewall has dropped INVALID TCP packets early. The
    new DROPINVALID option allows INVALID packets to be passed through
    the normal rules chains by setting DROPINVALID=No.

    If not specified or if specified as empty (e.g., DROPINVALID="")
    then DROPINVALID=Yes is assumed.
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Problems corrected in 2.0.17

1) Invoking the 'rejNotSyn' action results in an error at startup.