| Commit message (Collapse) | Author | Age | Files | Lines |
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This adds the core support for having comments on ipset entries.
The comments are stored as standard null-terminated strings in
dynamically allocated memory after being passed to the kernel. As a
result of this, code has been added to the generic destroy function to
iterate all extensions and call that extension's destroy task if the set
has that extension activated, and if such a task is defined.
Signed-off-by: Oliver Smith <oliver@8.c.9.b.0.7.4.0.1.0.0.2.ip6.arpa>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
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Get rid of the structure based extensions and introduce a blob for
the extensions. Thus we can support more extension types easily.
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ip[6]tables set match and SET target need to know the family of the set
in order to reject adding rules which refer to a set with a non-mathcing
family. Currently such rules are silently accepted and then ignored
instead of generating a clear error message to the user, which is not
helpful.
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Bug reported by Quentin Armitage, netfilter bugzilla id #843.
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The "nomatch" commandline flag should invert the matching at testing,
similarly to the --return-nomatch flag of the "set" match of iptables.
Until now it worked with the elements with "nomatch" flag only. From
now on it works with elements without the flag too, i.e:
# ipset n test hash:net
# ipset a test 10.0.0.0/24 nomatch
# ipset t test 10.0.0.1
10.0.0.1 is NOT in set test.
# ipset t test 10.0.0.1 nomatch
10.0.0.1 is in set test.
# ipset a test 192.168.0.0/24
# ipset t test 192.168.0.1
192.168.0.1 is in set test.
# ipset t test 192.168.0.1 nomatch
192.168.0.1 is NOT in set test.
Before the patch the results were
...
# ipset t test 192.168.0.1
192.168.0.1 is in set test.
# ipset t test 192.168.0.1 nomatch
192.168.0.1 is in set test.
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The new revision of the set match supports to match the counters
and to suppress updating the counters at matching too.
At the set:list types, the updating of the subcounters can be
suppressed as well.
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
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Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
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Introduce extensions to elements in the core and prepare timeout as
the first one.
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
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Unfortunately not everything could be moved there, there are still
compatibility ifdefs in some other files.
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
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When an entry flagged with "nomatch" was tested by ipset, it
returned the error message "Kernel error received:
Directory not empty" instead of "<element> is NOT in set <setname>".
The internal error code was not properly transformed before returning
to userspace, fixed.
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__rcu and rcu_dereference_protected is missing from older kernel releases.
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Handle the renaming of the netlink_skb_parms structure member.
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
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Eric Dumazet spotted that RCU handling was far incomplete in the patch
which added the support of increasing the number of maximal sets automatically.
This patch completes the RCU handling of the ip_set_list array of the sets.
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The max number of sets was hardcoded at kernel cofiguration time.
The patch adds the support to increase the max number of sets automatically.
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Exceptions can now be matched and we can branch according to the
possible cases:
a. match in the set if the element is not flagged as "nomatch"
b. match in the set if the element is flagged with "nomatch"
c. no match
i.e.
iptables ... -m set --match-set ... -j ...
iptables ... -m set --match-set ... --nomatch-entries -j ...
...
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Use of "unsigned int" is preferred to bare "unsigned" in net tree.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
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Backport of Pablo's patch to the ipset package.
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These macros contain a hidden goto, and are thus extremely error
prone and make code hard to audit.
Signed-off-by: David S. Miller <davem@davemloft.net>
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[The patch changes the API of the netlink_dump_start interface: port
it to the standalone ipset package.]
The message size allocated for rtnl ifinfo dumps was limited to
a single page. This is not enough for additional interface info
available with devices that support SR-IOV and caused a bug in
which VF info would not be displayed if more than approximately
40 VFs were created per interface.
Implement a new function pointer for the rtnl_register service that will
calculate the amount of data required for the ifinfo dump and allocate
enough data to satisfy the request.
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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It was suggested by "make versioncheck" that the follwing includes of
linux/version.h are redundant:
/home/jj/src/linux-2.6/net/caif/caif_dev.c: 14 linux/version.h not needed.
/home/jj/src/linux-2.6/net/caif/chnl_net.c: 10 linux/version.h not needed.
/home/jj/src/linux-2.6/net/ipv4/gre.c: 19 linux/version.h not needed.
/home/jj/src/linux-2.6/net/netfilter/ipset/ip_set_core.c: 20 linux/version.h not needed.
/home/jj/src/linux-2.6/net/netfilter/xt_set.c: 16 linux/version.h not needed.
and it seems that it is right.
Beyond manually inspecting the source files I also did a few build
tests with various configs to confirm that including the header in
those files is indeed not needed.
Here's a patch to remove the pointless includes.
Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Acked-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
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ipset is actually using NFPROTO values rather than AF (xt_set passes
that along).
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Removing unnecessary messages saves code and text.
Site specific OOM messages are duplications of a generic MM
out of memory message and aren't really useful, so just
delete them.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
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If there was a dumping error in the middle, the set-specific variable was
not zeroed out and thus the 'done' function of the dumping wrongly tried
to release the already released reference of the set. The already released
reference was caught by __ip_set_put and triggered a kernel BUG message.
The issue was reported by Jean-Philippe Menil.
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Jan Engelhardt noticed when userspace requests a set type unknown
to the kernel, it can lead to a loop due to the unsafe type module
loading. The issue is fixed in this patch.
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With the change the sets can use any parameter available for the match
and target extensions, like input/output interface. It's required for
the hash:net,iface set type.
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A set type may have multiple revisions, for example when syntax is extended.
Support continuous revision ranges in set types.
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When ranges are added to hash types, the elements may trigger rehashing the set.
However, the last successfully added element was not kept track so the adding
started again with the first element after the rehashing. Bug reported by Mr Dash Four.
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Current listing makes possible to list sets with full content only.
The patch adds support partial listings, i.e. listing just
the existing setnames or listing set headers, without set members.
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A restoreable saving of sets requires that list:set type of sets
come last and the code part which should have taken into account
the ordering was broken. The patch fixes the listing order.
Testsuite entry added which checks the listing order.
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The support makes possible to specify the timeout value for
the SET target and a flag to reset the timeout for already existing
entries.
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The timeout variant of the list:set type must reference the member sets.
However, its garbage collector runs at timer interrupt so the mutex protection
of the references is a no go. Therefore the reference protection
is converted to rwlock.
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Revision reporting got broken by the revision checking patch, fixed.
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The revision number was not checked at the create command: if the userspace
sent a valid set type but with not supported revision number, it'd create
a loop.
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net/netfilter/ipset/ip_set_core.c:615: warning: ?clash? may be used uninitialized in this function
Signed-off-by: shanw <shanw@shanw-desktop.(none)>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
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The kernel/ subdirectory is reorganized to follow the kernel directory
structure.
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