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Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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In Linux kernels up to and including 2.6.38, with the exception of longterm
releases 2.6.32.42 (or later) and 2.6.33.15 (or later), there is a bug (*) whereby
IPv6 TOS mangling does not behave as documented and differs from the IPv4
version. The TOS mask indicates the bits one wants to zero out, so it needs to
be inverted before applying it to the original TOS field. However, the
aformentioned kernels forgo the inversion which breaks --set-tos and its
mnemonics.
(*) Fixed by upstream commit:
1ed2f73d90fb49bcf5704aee7e9084adb882bfc5 (netfilter: IPv6: fix DSCP mangle code)
Signed-off-by: Fernando Luis Vazquez Cao <fernando@oss.ntt.co.jp>
Signed-off-by: Patrick McHardy <kaber@trash.net>
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The section about MASQUERADE specifies that it takes a single option,
but in reality it takes two: --to-ports and --random.
Signed-off-by: Vlad Dogaru <ddvlad@rosedu.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
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The word "occur" had ufortunately been removed in v1.3.8~23.
References: http://bugzilla.netfilter.org/show_bug.cgi?id=707
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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References; http://bugzilla.netfilter.org/show_bug.cgi?id=713
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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References: http://bugzilla.netfilter.org/show_bug.cgi?id=713
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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This is where they belong, after all.
References: http://bugzilla.netfilter.org/show_bug.cgi?id=713
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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Comparing against the kernel time zone has significant caveats. This
patch adds documentation about the issue, and makes --utc the default
setting for libxt_time.
Furthremore, throw a warning on using the "--localtz" option, to avoid
confusion with one's shell TZ environment variable, and rename it to
"--kerneltz" to be explicit about whose timezone will be used.
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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Since xt_time is meant to work across many months, libc doing
automatic conversion from local time to UTC (during parse) is
unwanted, especially when --utc is specified. The same goes for
dumping.
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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Only one is printed on save operation, which leads me to believe that
only one is meant to be used. The manpage seems to corroborate.
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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Fixes this error:
NFQUEUE: option "--queue-num" can only be used once.
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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When ":n" or "n:" is specified, it will now be interpreted as "0:n"
and "n:<max>", respecitvely. nvals will always reflect the number of
(expanded) components. This restores the functionality of options that
take such partially-unspecified ranges.
This makes it possible to nuke the per-matchdata init functions of
some extensions and simply the extensions postparsing to the point
where it only needs to check for nvals==1 or ==2.
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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The REDIRECT target can be called without the --to-ports option
being specified. From the manual page:
...without this, the destination port is never altered.
Signed-off-by: Lutz Jaenicke <ljaenicke@innominate.com>
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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Signed-off-by: Lutz Jaenicke <ljaenicke@innominate.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
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This unfortunately got mixed up during the getopt -> guided parser
move.
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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--ctorigdstport 13
ip6tables-restore v1.4.10: conntrack rev 2 does not support port ranges
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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Of course the range end ought to be set, not doing the start value
twice.
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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iptables-restore v1.4.10: DNAT: Multiple --to-destination not supported
xtables_option_parse sets cb->xflags already, so that it cannot be
directly used to test whether an option is being used for the second
time. Thus use a private option/flag (X_TO_DEST/SRC) that is not under
the control of xtables_option_parse.
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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Most of the flags are multi-use in this extension. Also transfer
--next => --strict requirement to option table.
Furthermore, augment the error messages emitted from fcheck to contain
the policy element number, and elaborate on what an "empty policy
element" is.
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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