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Update trunk's release notes and change log with 4.4.19.* corrections

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Signed-off-by: Tom Eastep <teastep@shorewall.net>
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Tom Eastep 2011-05-13 13:14:29 -07:00
parent 9ba9d40b77
commit 6d7ebb14b8
2 changed files with 163 additions and 64 deletions
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25
Shorewall/changelog.txt
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@ -2,9 +2,30 @@ Changes in Shorewall 4.4.20 Beta 1
1) Apply Togan's patch for installation flexibility.
2) Restore use of IPSETS in the ORIGINAL DEST column.
2) Disallow degenerate entry in tcpri.
3) Correct several complex TC issues reported by Mr Dash4.
3) More fixes to LIBEXEC/TCPRI
4) Don't allow filters and tcrules to refer to non-leaf classes.
Changes in Shorewall 4.4.19.2
1) Restore the ability to have IPSET names in the ORIGINAL DEST column
of a DNAT or REDIRECT rule.
2) Correct several complex TC issues reported by Mr Dash4.
3) Detect double exclusion involving ipset expressions.
Changes in Shorewall 4.4.19.1
1) Eliminate silly duplicate rule when stopped.
2) Don't believe that all nexthop routes are default routes.
3) Restore :<low port>-<high port> in masq file.
4) Correct default route safe/restore.
Changes in Shorewall 4.4.19.1

202
Shorewall/releasenotes.txt
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@ -13,71 +13,19 @@ VI. PROBLEMS CORRECTED AND NEW FEATURES IN PRIOR RELEASES
I. P R O B L E M S C O R R E C T E D I N T H I S R E L E A S E
----------------------------------------------------------------------------
1) A duplicate ACCEPT rule in the INPUT chain has been eliminated when
the firewall is stopped.
1) Previously, the compiler would allow a degenerate entry (only the
BAND specified) in /etc/shorewall/tcpri. Such an entry now raises a
compilation error.
2) A defect introduced in Shorewall 4.4.17 broke the ability to
specify ':<low port>-<high port>' in the ADDRESS column of
/etc/shorewall/masq.
2) Previously, it was possible to specify tcfilters and tcrules that
classified traffic with the class-id of a non-leaf HFSC class. Such
classes are not capabable of handling packets.
3) Several long-standing defects having to do with default route
save/restore have been corrected in the Multi-ISP implementation.
Shorewall now generates a compile-time warning in this case.
a) Shorewall previously interpreted all 'nexthop' routes as
default routes when analyzing the pre-start routing
configuration. This could lead to unwanted default routes when
the firewall was started or stopped.
b) The default route with metric 0 was usually not restored
during 'stop' processing.
c) If there were multiple default routes in the main table prior
to 'shorewall start' and USE_DEFAULT_RT was set, only the
first one with metric 0 was deleted.
4) Shorewall-shell allowed an IPSET in the ORIGINAL DEST column of
DNAT and REDIRECT rules. That capability, inadvertently dropped in
Shorewall-perl, has now been restored.
Please note, however, that using an IPSET in this way will open the
server port from the SOURCE zone.
Example:
This rule:
DNAT net dmz:10.1.10.2 tcp 80 - +foo
will implicitly add this rule:
ACCEPT net dmz:10.1.10.2 tcp 80
5) Several problems with complex TC have been corrected:
a) The following entry in /etc/shorewall/tcclasses
A:1 - 10*full/100:50ms 20*full/100 1 tcp-ack
produced this error:
ERROR: Unknown INTERFACE (A) : /etc/shorewall/tcclasses
This has been corrected by requiring that class numbers
containing a-f or A-F must be prefaced by '0x'.
b) Shorewall reserves class number 1 for the root class of the
queuing discipline. Definining class 1 in
/etc/shorewall/tcclasses was previoulsly escaping detection by
the compiler, resulting in a run-time error.
c) The compiler did not complain if a CLASSID specified in the MARK
column of tcrules referred to an IFB class. Such a rule would be
nonsensical since packets are passed through the IFB before
they are passed through any marking rules. Such a configuration
now results in a compilation error.
d) Where there are more than 10 tcdevices, tcfilter entries could
generate invalid rules.
If a non-leaf class is specified as the default class, then
Shorewall now generates a compile-time error since that
configuration allows no network traffic to flow.
----------------------------------------------------------------------------
I I. K N O W N P R O B L E M S R E M A I N I N G
@ -336,6 +284,136 @@ V I. P R O B L E M S C O R R E C T E D A N D N E W F E A T U R E S
----------------------------------------------------------------------------
P R O B L E M S C O R R E C T E D I N 4 . 4 . 1 9
----------------------------------------------------------------------------
4.4.19.4
1) Previously, the compiler would allow a degenerate entry (only the
BAND specified) in /etc/shorewall/tcpri. Such an entry now raises a
compilation error.
2) Previously, it was possible to specify tcfilters and tcrules that
classified traffic with the class-id of a non-leaf HFSC class. Such
classes are not capabable of handling packets.
Shorewall now generates a compile-time warning in this case.
If a non-leaf class is specified as the default class, then
Shorewall now generates a compile-time error since that
configuration allows no network traffic to flow.
4.4.19.3
1) The changes in 4.4.19.1 that corrected long-standing issues with
default route save/restore were incompatible with 'gawk'. When
'gawk' was installed (rather than 'mawk'), awk syntax errors having
to do with the symbol 'default' were issued.
This incompatibility has been corrected.
2) Previously, an entry in the USER/GROUP column in the rules and
tcrules files could cause run-time start/restart failures if the
rule(s) being added did not have the firewall as the source (rules
file) and were not being added to the POSTROUTING chain (:T
designator in the tcrules file). This error is now caught by
the compiler.
3) Shorewall now insures that a route to a default gateway exists in
the main table before it attempts to add a default route through
that gateway in a provider table. This prevents start/restart
failures in the rare event that such a route does not exist.
4) CLASSIFY TC rules can apply to traffic exiting only the interface
associated with the class-id specified in the first column. In a
Multi-ISP configuration, a naive user might create this TC rule:
1:2 - 1.2.3.4
This will work fine when 1.2.3.4 can only be routed out of a single
interface. However, if we assume that eth0 is interface 1, then the
above rule only works for traffic leaving via eth0.
Beginning with this release, the Shorewall compiler will interpret
the above rule as this one:
1.2 - eth0:1.2.3.4
4.4.19.2
1) In Shorewall-shell, there was the ability to specify IPSET names in
the ORIGINAL DEST column of DNAT and REDIRECT rules. That ability,
inadvertently dropped in Shorewall-perl, has been restored.
CAUTION: When an IPSET is used in this way, the server port is
opened from the SOURCE zone.
Example:
DNAT net dmz:10.1.1.2 tcp 80 - +foo
will implicitly add this rule
ACCEPT net dmz:10.1.1.2 tcp 80
2) Several problems with complex TC have been corrected:
a) The following entry in /etc/shorewall/tcclasses
A:1 - 10*full/100:50ms 20*full/100 1 tcp-ack
produced this error:
ERROR: Unknown INTERFACE (A) : /etc/shorewall/tcclasses
This has been corrected.
b) Shorewall reserves class number 1 for the root class of the
queuing discipline. Definining class 1 in
/etc/shorewall/tcclasses was previoulsly escaping detection by
the compiler, resulting in a run-time error.
c) The compiler did not complain if a CLASSID specified in the MARK
column of tcrules referred to an IFB class. Such a rule would be
nonsensical since packets are passed through the IFB before
they are passed through any marking rules. Such a configuration
now results in a compilation error.
d) Where there are more than 10 tcdevices, tcfilter entries could
generate invalid rules.
3) Double exclusion involving ipset lists was previously not detected,
resulting in anomalous behavior.
Example:
ACCEPT:info $FW net:!10.1.0.7,10.1.0.9,+[!my-host[src]]]
Such cases now result in a compilation error.
4.4.19.1
1) A duplicate ACCEPT rule in the INPUT chain has been eliminated when
the firewall is stopped.
2) A defect introduced in Shorewall 4.4.17 broke the ability to
specify ':<low port>-<high port>' in the ADDRESS column of
/etc/shorewall/masq.
3) Several long-standing defects having to do with default route
save/restore have been corrected in the Multi-ISP implementation.
a) Shorewall previously interpreted all 'nexthop' routes as
default routes when analyzing the pre-start routing
configuration. This could lead to unwanted default routes when
the firewall was started or stopped.
b) The default route with metric 0 was usually not restored
during 'stop' processing.
c) If there were multiple default routes in the main table prior
to 'shorewall start' and USE_DEFAULT_RT was set, only the
first one with metric 0 was deleted.
4.4.19
1) Corrected a problem in optimize level 4 that resulted in the
following compile-time failure.