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* netfilter: ipset: Fix ext_*() macrosSergey Popovich2015-03-231-4/+4
| | | | | | | | | So pointers returned by these macros could be referenced with -> directly. Signed-off-by: Sergey Popovich <popovich_sergei@mail.ua> Signed-off-by: Sergey Popovich <popovich_sergei@mail.ua> Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
* Make sure bit operations are not reorderedJozsef Kadlecsik2015-03-191-0/+5
| | | | | Sergey Popovich pointed out that {set,clear}_bit() operations must be protected against instruction reordering.
* Fix cidr handling for hash:*net* typesJozsef Kadlecsik2015-03-131-2/+0
| | | | | | | | Commit 092d67cda9ad4 broke the cidr handling for the hash:*net* types when the sets were used by the SET target: entries with invalid cidr values were added to the sets. Reported by Jonathan Johnson. Testsuite entry is added to verify the fix.
* More compatibility checking and simplificationsJozsef Kadlecsik2015-01-063-9/+49
| | | | | Try hard to keep the support of the 2.6.32 kernel tree and simplify the code with self-referential macros.
* Compatibility: define RCU_INIT_POINTER when __rcu is not definedJozsef Kadlecsik2015-01-061-1/+6
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* Compatibility: check kernel source for list_last_entryJozsef Kadlecsik2015-01-061-0/+6
| | | | list_last_entry is missing on CentOS7, reported by Ricardo Klein.
* Fix coding styles reported by checkpatch.plJozsef Kadlecsik2015-01-061-1/+1
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* Remove an unused macroJozsef Kadlecsik2014-12-101-4/+0
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* Use MSEC_PER_SEC consistentlyJozsef Kadlecsik2014-12-011-2/+2
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* Remove unnecessary integer RCU handling and fix sparse warningsJozsef Kadlecsik2014-11-273-82/+41
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* Fix parallel resizing and listing of the same setJozsef Kadlecsik2014-11-181-5/+8
| | | | | | | | When elements added to a hash:* type of set and resizing triggered, parallel listing could start to list the original set (before resizing) and "continue" with listing the new set. Fix it by references and using the original hash table for listing. Therefore the destroying the original hash table may happen from the resizing or listing functions.
* styles warned by checkpatch.pl fixedJozsef Kadlecsik2014-11-181-4/+5
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* Introduce RCU in all set types instead of rwlock per setJozsef Kadlecsik2014-11-182-35/+86
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Performance is tested by Jesper Dangaard Brouer: Simple drop in FORWARD ~~~~~~~~~~~~~~~~~~~~~~ Dropping via simple iptables net-mask match:: iptables -t raw -N simple || iptables -t raw -F simple iptables -t raw -I simple -s 198.18.0.0/15 -j DROP iptables -t raw -D PREROUTING -j simple iptables -t raw -I PREROUTING -j simple Drop performance in "raw": 11.3Mpps Generator: sending 12.2Mpps (tx:12264083 pps) Drop via original ipset in RAW table ~~~~~~~~~~~~~~~~~~~~~~~~~~~ Create a set with lots of elements:: sudo ./ipset destroy test echo "create test hash:ip hashsize 65536" > test.set for x in `seq 0 255`; do for y in `seq 0 255`; do echo "add test 198.18.$x.$y" >> test.set done done sudo ./ipset restore < test.set Dropping via ipset:: iptables -t raw -F iptables -t raw -N net198 || iptables -t raw -F net198 iptables -t raw -I net198 -m set --match-set test src -j DROP iptables -t raw -I PREROUTING -j net198 Drop performance in "raw" with ipset: 8Mpps Perf report numbers ipset drop in "raw":: + 24.65% ksoftirqd/1 [ip_set] [k] ip_set_test - 21.42% ksoftirqd/1 [kernel.kallsyms] [k] _raw_read_lock_bh - _raw_read_lock_bh + 99.88% ip_set_test - 19.42% ksoftirqd/1 [kernel.kallsyms] [k] _raw_read_unlock_bh - _raw_read_unlock_bh + 99.72% ip_set_test + 4.31% ksoftirqd/1 [ip_set_hash_ip] [k] hash_ip4_kadt + 2.27% ksoftirqd/1 [ixgbe] [k] ixgbe_fetch_rx_buffer + 2.18% ksoftirqd/1 [ip_tables] [k] ipt_do_table + 1.81% ksoftirqd/1 [ip_set_hash_ip] [k] hash_ip4_test + 1.61% ksoftirqd/1 [kernel.kallsyms] [k] __netif_receive_skb_core + 1.44% ksoftirqd/1 [kernel.kallsyms] [k] build_skb + 1.42% ksoftirqd/1 [kernel.kallsyms] [k] ip_rcv + 1.36% ksoftirqd/1 [kernel.kallsyms] [k] __local_bh_enable_ip + 1.16% ksoftirqd/1 [kernel.kallsyms] [k] dev_gro_receive + 1.09% ksoftirqd/1 [kernel.kallsyms] [k] __rcu_read_unlock + 0.96% ksoftirqd/1 [ixgbe] [k] ixgbe_clean_rx_irq + 0.95% ksoftirqd/1 [kernel.kallsyms] [k] __netdev_alloc_frag + 0.88% ksoftirqd/1 [kernel.kallsyms] [k] kmem_cache_alloc + 0.87% ksoftirqd/1 [xt_set] [k] set_match_v3 + 0.85% ksoftirqd/1 [kernel.kallsyms] [k] inet_gro_receive + 0.83% ksoftirqd/1 [kernel.kallsyms] [k] nf_iterate + 0.76% ksoftirqd/1 [kernel.kallsyms] [k] put_compound_page + 0.75% ksoftirqd/1 [kernel.kallsyms] [k] __rcu_read_lock Drop via ipset in RAW table with RCU-locking ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ With RCU locking, the RW-lock is gone. Drop performance in "raw" with ipset with RCU-locking: 11.3Mpps Performance-tested-by: Jesper Dangaard Brouer <brouer@redhat.com>
* Add more compatibility checkings to support older kernel releasesJozsef Kadlecsik2014-11-181-1/+3
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* Kernel API changes in em_ipset.c, support both old and new onesJozsef Kadlecsik2014-11-031-0/+2
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* net: use the new API kvfree()WANG Cong2014-11-031-0/+11
| | | | | | | | | It is available since v3.15-rc5. Cc: Pablo Neira Ayuso <pablo@netfilter.org> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Use IS_ENABLED macro and define it if requiredJozsef Kadlecsik2014-11-031-0/+11
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* Alignment problem between 64bit kernel 32bit userspaceJozsef Kadlecsik2014-11-032-3/+18
| | | | | | | | | | | | | | | | Sven-Haegar Koch reported the issue: sims:~# iptables -A OUTPUT -m set --match-set testset src -j ACCEPT iptables: Invalid argument. Run `dmesg' for more information. In syslog: x_tables: ip_tables: set.3 match: invalid size 48 (kernel) != (user) 32 which was introduced by the counter extension in ipset. The patch fixes the alignment issue with introducing a new set match revision with the fixed underlying 'struct ip_set_counter_match' structure.
* skbinfo extension: send nonzero extension elements only to userspaceJozsef Kadlecsik2014-09-151-7/+11
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* netfilter: ipset: Add skbinfo extension support to SET target.Anton Danilov2014-09-141-0/+10
| | | | | Signed-off-by: Anton Danilov <littlesmilingcloud@gmail.com> Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
* netfilter: ipset: Add skbinfo extension kernel support in the ipset core.Anton Danilov2014-09-082-1/+67
| | | | | | | | | | | Skbinfo extension provides mapping of metainformation with lookup in the ipset tables. This patch defines the flags, the constants, the functions and the structures for the data type independent support of the extension. Note the firewall mark stores in the kernel structures as two 32bit values, but transfered through netlink as one 64bit value. Signed-off-by: Anton Danilov <littlesmilingcloud@gmail.com> Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
* Fix warn: integer overflows 'sizeof(*map) + size * set->dsize'Jozsef Kadlecsik2014-08-051-0/+1
| | | | | | | | | Dan Carpenter reported that the static checker emits the warning net/netfilter/ipset/ip_set_list_set.c:600 init_list_set() warn: integer overflows 'sizeof(*map) + size * set->dsize' Limit the maximal number of elements in list type of sets.
* ipset: add forceadd kernel support for hash set typesJosh Hunt2014-03-042-2/+8
| | | | | | | | | | | | | | | | | | Adds a new property for hash set types, where if a set is created with the 'forceadd' option and the set becomes full the next addition to the set may succeed and evict a random entry from the set. To keep overhead low eviction is done very simply. It checks to see which bucket the new entry would be added. If the bucket's pos value is non-zero (meaning there's at least one entry in the bucket) it replaces the first entry in the bucket. If pos is zero, then it continues down the normal add process. This property is useful if you have a set for 'ban' lists where it may not matter if you release some entries from the set early. Signed-off-by: Josh Hunt <johunt@akamai.com> Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
* kernel: uapi: fix MARKMASK attr ABI breakageFlorian Westphal2014-02-141-2/+2
| | | | | | | | | | | | | | commit 2dfb973c0dcc6d2211 (add markmask for hash:ip,mark data type) inserted IPSET_ATTR_MARKMASK in-between other enum values, i.e. changing values of all further attributes. This causes 'ipset list' segfault on existing kernels since ipset no longer finds IPSET_ATTR_MEMSIZE (it has a different value on kernel side). Jozsef points out it should be moved below IPSET_ATTR_MARK which works since there is some extra reserved space after that value. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
* Prepare the kernel for create option flags when no extension is neededJozsef Kadlecsik2014-02-132-0/+8
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* add markmask for hash:ip,mark data typeVytas Dauksa2014-01-231-0/+2
| | | | | | | | | Introduce packet mark mask for hash:ip,mark data type. This allows to set mark bit filter for the ip set. Change-Id: Id8dd9ca7e64477c4f7b022a1d9c1a5b187f1c96e Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
* add hash:ip,mark data type to ipsetVytas Dauksa2014-01-082-4/+7
| | | | | | | | | | | | | | | | Introduce packet mark support with new ip,mark hash set. This includes userspace and kernelspace code, hash:ip,mark set tests and man page updates. The intended use of ip,mark set is similar to the ip:port type, but for protocols which don't use a predictable port number. Instead of port number it matches a firewall mark determined by a layer 7 filtering program like opendpi. As well as allowing or blocking traffic it will also be used for accounting packets and bytes sent for each protocol. Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
* ipset: remove unused codeStephen Hemminger2014-01-071-1/+0
| | | | | | | Function never used in current upstream code. Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
* net ipset: use rbtree postorder iteration instead of opencodingCody P Schafer2013-11-131-1/+2
| | | | | | | | Use rbtree_postorder_for_each_entry_safe() to destroy the rbtree instead of opencoding an alternate postorder iteration that modifies the tree Signed-off-by: Cody P Schafer <cody@linux.vnet.ibm.com> Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
* net->user_ns is available starting from 3.8, add compatibility checkingJozsef Kadlecsik2013-10-271-0/+1
| | | | Reported by Jan Engelhardt
* Avoid clashing with configured kernel in [CONFIG_]IP_SET_MAXJozsef Kadlecsik2013-10-081-0/+8
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* Compatibility code is modified not to rely on kernel version numbersJozsef Kadlecsik2013-10-021-11/+27
| | | | | | | Instead the kernel source code is checked to verify the different compatibility issues for the supported kernel releases. This way hopefully backported features will be handled properly.
* Use netlink callback dump args onlyJozsef Kadlecsik2013-10-021-0/+10
| | | | | Instead of cb->data, use callback dump args only and introduce symbolic names instead of plain numbers at accessing the argument members.
* ipset: Add net namespace for ipsetVitaly Lavrov2013-09-281-7/+9
| | | | | | | | | | | | | | | | This patch adds netns support for ipset. Major changes were made in ip_set_core.c and ip_set.h. Global variables are moved to per net namespace. Added initialization code and the destruction of the network namespace ipset subsystem. In the prototypes of public functions ip_set_* added parameter "struct net*". The remaining corrections related to the change prototypes of public functions ip_set_*. The patch for git://git.netfilter.org/ipset.git commit 6a4ec96c0b8caac5c35474e40e319704d92ca347 Signed-off-by: Vitaly Lavrov <lve@guap.ru> Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
* Use a common function at listing the extensions of the elementsJozsef Kadlecsik2013-09-251-0/+21
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* ipset: Support comments in the userspace library.Oliver Smith2013-09-231-0/+3
| | | | | | | | | This adds support to the userspace portion of ipset for handling ipsets with the comment extension enabled. The library revision has been raised accordingly. 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>
* netfilter: ipset: Support comments for ipset entries in the core.Oliver Smith2013-09-233-8/+104
| | | | | | | | | | | | | 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>
* Kconfig: ipset needs NETFILTER_NETLINKJozsef Kadlecsik2013-09-171-0/+5
| | | | | NETFILTER_NETLINK is not selectable in recent kernels, check and warn if not enabled indirectly.
* Support extensions which need a per data destroy functionJozsef Kadlecsik2013-09-091-5/+17
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* Generalize extensions supportJozsef Kadlecsik2013-09-071-0/+13
| | | | | Get rid of the structure based extensions and introduce a blob for the extensions. Thus we can support more extension types easily.
* Move extension data to set structureJozsef Kadlecsik2013-09-072-11/+22
| | | | | | Default timeout and extension offsets are moved to struct set, because all set types supports all extensions and it makes possible to generalize extension support.
* Rename extension offset ids to extension idsJozsef Kadlecsik2013-09-061-8/+8
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* Prepare ipset to support multiple networks for hash typesJozsef Kadlecsik2013-09-041-0/+2
| | | | | | In order to support hash:net,net, hash:net,port,net etc. types, arrays are introduced for the book-keeping of existing cidr sizes and network numbers in a set.
* Introduce new operation to get both setname and familyJozsef Kadlecsik2013-09-041-0/+8
| | | | | | | | 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.
* Consistent userspace testing with nomatch flagJozsef Kadlecsik2013-07-221-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* Backport nla_put_net64Jozsef Kadlecsik2013-05-091-0/+10
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* Use fix sized type for timeout in the extension partJozsef Kadlecsik2013-05-021-1/+1
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* Make sure kernel configured properly for sparse checkingsJozsef Kadlecsik2013-05-011-0/+6
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* Rename simple macro names to avoid namespace issues.Jozsef Kadlecsik2013-05-011-0/+3
| | | | Reported-by: David Laight <David.Laight@ACULAB.COM>
* set match: add support to match the countersJozsef Kadlecsik2013-04-093-6/+43
| | | | | | | | | | 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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