Commit graph

22 commits

Author SHA1 Message Date
Joe Perches 0a9ee81349 netfilter: Remove unnecessary OOM logging messages
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: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2011-11-01 09:19:49 +01:00
Jesper Juhl dec17b7451 Remove redundant linux/version.h includes from net/
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>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-21 16:03:17 -07:00
Jozsef Kadlecsik 15b4d93f03 netfilter: ipset: whitespace and coding fixes detected by checkpatch.pl
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2011-06-16 19:01:26 +02:00
Jozsef Kadlecsik 9d8832320f netfilter: ipset: fix return code for destroy when sets are in use
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2011-06-16 18:57:44 +02:00
Jozsef Kadlecsik b66554cf03 netfilter: ipset: add xt_action_param to the variant level kadt functions, ipset API change
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.

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2011-06-16 18:56:47 +02:00
Jozsef Kadlecsik f1e00b3979 netfilter: ipset: set type support with multiple revisions added
A set type may have multiple revisions, for example when syntax is
extended. Support continuous revision ranges in set types.

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2011-06-16 18:51:41 +02:00
Jozsef Kadlecsik 3d14b171f0 netfilter: ipset: fix adding ranges to hash types
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.

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2011-06-16 18:49:17 +02:00
Jozsef Kadlecsik c1e2e04388 netfilter: ipset: support listing setnames and headers too
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.

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2011-06-16 18:47:07 +02:00
Jozsef Kadlecsik ac8cc925d3 netfilter: ipset: options and flags support added to the kernel API
The support makes possible to specify the timeout value for
the SET target and a flag to reset the timeout for already existing
entries.

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2011-06-16 18:42:40 +02:00
Greg Rose c7ac8679be rtnetlink: Compute and store minimum ifinfo dump size
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>
2011-06-09 20:38:07 -07:00
Jozsef Kadlecsik 9184a9cba6 netfilter: ipset: fix ip_set_flush return code
ip_set_flush returned -EPROTO instead of -IPSET_ERR_PROTOCOL, fixed

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2011-05-26 19:08:11 +02:00
David S. Miller 0b0dc0f17f Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-2.6 2011-04-19 11:28:35 -07:00
Jozsef Kadlecsik a8a8a0937e netfilter: ipset: Fix the order of listing of sets
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.

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2011-04-19 15:59:15 +02:00
Linus Torvalds c44eaf41a5 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (34 commits)
  net: Add support for SMSC LAN9530, LAN9730 and LAN89530
  mlx4_en: Restoring RX buffer pointer in case of failure
  mlx4: Sensing link type at device initialization
  ipv4: Fix "Set rt->rt_iif more sanely on output routes."
  MAINTAINERS: add entry for Xen network backend
  be2net: Fix suspend/resume operation
  be2net: Rename some struct members for clarity
  pppoe: drop PPPOX_ZOMBIEs in pppoe_flush_dev
  dsa/mv88e6131: add support for mv88e6085 switch
  ipv6: Enable RFS sk_rxhash tracking for ipv6 sockets (v2)
  be2net: Fix a potential crash during shutdown.
  bna: Fix for handling firmware heartbeat failure
  can: mcp251x: Allow pass IRQ flags through platform data.
  smsc911x: fix mac_lock acquision before calling smsc911x_mac_read
  iwlwifi: accept EEPROM version 0x423 for iwl6000
  rt2x00: fix cancelling uninitialized work
  rtlwifi: Fix some warnings/bugs
  p54usb: IDs for two new devices
  wl12xx: fix potential buffer overflow in testmode nvs push
  zd1211rw: reset rx idle timer from tasklet
  ...
2011-04-11 07:27:24 -07:00
Jozsef Kadlecsik 2f9f28b212 netfilter: ipset: references are protected by rwlock instead of mutex
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.

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2011-04-04 15:19:25 +02:00
Lucas De Marchi 25985edced Fix common misspellings
Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-31 11:26:23 -03:00
Jozsef Kadlecsik 6604271c5b netfilter: ipset: References are protected by rwlock instead of mutex
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.

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2011-03-29 15:00:43 +02:00
Jozsef Kadlecsik 5c1aba4678 netfilter: ipset: fix checking the type revision at create command
The revision of the set type 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.

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2011-03-20 15:35:01 +01:00
Shan Wei 9846ada138 netfilter: ipset: fix the compile warning in ip_set_create
net/netfilter/ipset/ip_set_core.c:615: warning: ‘clash’ may be used uninitialized in this function

Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2011-03-08 15:37:27 +01:00
Jozsef Kadlecsik 5f52bc3cdd netfilter: ipset: send error message manually
When a message carries multiple commands and one of them triggers
an error, we have to report to the userspace which one was that.
The line number of the command plays this role and there's an attribute
reserved in the header part of the message to be filled out with the error
line number. In order not to modify the original message received from
the userspace, we construct a new, complete netlink error message and
modifies the attribute there, then send it.
Netlink is notified not to send its ACK/error message.

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu
Signed-off-by: Patrick McHardy <kaber@trash.net>
2011-02-02 23:56:00 +01:00
Patrick McHardy 8da560ced5 netfilter: ipset: use nla_parse_nested()
Replace calls of the form:

nla_parse(tb, ATTR_MAX, nla_data(attr), nla_len(attr), policy)

by:

nla_parse_nested(tb, ATTR_MAX, attr, policy)

Signed-off-by: Patrick McHardy <kaber@trash.net>
2011-02-01 16:27:25 +01:00
Jozsef Kadlecsik a7b4f989a6 netfilter: ipset: IP set core support
The patch adds the IP set core support to the kernel.

The IP set core implements a netlink (nfnetlink) based protocol by which
one can create, destroy, flush, rename, swap, list, save, restore sets,
and add, delete, test elements from userspace. For simplicity (and backward
compatibilty and for not to force ip(6)tables to be linked with a netlink
library) reasons a small getsockopt-based protocol is also kept in order
to communicate with the ip(6)tables match and target.

The netlink protocol passes all u16, etc values in network order with
NLA_F_NET_BYTEORDER flag. The protocol enforces the proper use of the
NLA_F_NESTED and NLA_F_NET_BYTEORDER flags.

For other kernel subsystems (netfilter match and target) the API contains
the functions to add, delete and test elements in sets and the required calls
to get/put refereces to the sets before those operations can be performed.

The set types (which are implemented in independent modules) are stored
in a simple RCU protected list. A set type may have variants: for example
without timeout or with timeout support, for IPv4 or for IPv6. The sets
(i.e. the pointers to the sets) are stored in an array. The sets are
identified by their index in the array, which makes possible easy and
fast swapping of sets. The array is protected indirectly by the nfnl
mutex from nfnetlink. The content of the sets are protected by the rwlock
of the set.

There are functional differences between the add/del/test functions
for the kernel and userspace:

- kernel add/del/test: works on the current packet (i.e. one element)
- kernel test: may trigger an "add" operation  in order to fill
  out unspecified parts of the element from the packet (like MAC address)
- userspace add/del: works on the netlink message and thus possibly
  on multiple elements from the IPSET_ATTR_ADT container attribute.
- userspace add: may trigger resizing of a set

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2011-02-01 15:28:35 +01:00