Commit Graph

913 Commits

Author SHA1 Message Date
David S. Miller
f11c179eea Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/net/wireless/orinoco/orinoco.c
2009-02-25 00:02:05 -08:00
Josef Drexler
325fb5b4d2 netfilter: xt_recent: fix proc-file addition/removal of IPv4 addresses
Fix regression introduded by commit 079aa88 (netfilter: xt_recent: IPv6 support):

From http://bugzilla.kernel.org/show_bug.cgi?id=12753:

Problem Description:
An uninitialized buffer causes IPv4 addresses added manually (via the +IP
command to the proc interface) to never match any packets. Similarly, the -IP
command fails to remove IPv4 addresses.

Details:
In the function recent_entry_lookup, the xt_recent module does comparisons of
the entire nf_inet_addr union value, both for IPv4 and IPv6 addresses. For
addresses initialized from actual packets the remaining 12 bytes not occupied
by the IPv4 are zeroed so this works correctly. However when setting the
nf_inet_addr addr variable in the recent_mt_proc_write function, only the IPv4
bytes are initialized and the remaining 12 bytes contain garbage.

Hence addresses added in this way never match any packets, unless these
uninitialized 12 bytes happened to be zero by coincidence. Similarly, addresses
cannot consistently be removed using the proc interface due to mismatch of the
garbage bytes (although it will sometimes work to remove an address that was
added manually).

Reading the /proc/net/xt_recent/ entries hides this problem because this only
uses the first 4 bytes when displaying IPv4 addresses.

Steps to reproduce:
$ iptables -I INPUT -m recent --rcheck -j LOG
$ echo +169.254.156.239 > /proc/net/xt_recent/DEFAULT
$ cat /proc/net/xt_recent/DEFAULT
src=169.254.156.239 ttl: 0 last_seen: 119910 oldest_pkt: 1 119910

[At this point no packets from 169.254.156.239 are being logged.]

$ iptables -I INPUT -s 169.254.156.239 -m recent --set
$ cat /proc/net/xt_recent/DEFAULT
src=169.254.156.239 ttl: 0 last_seen: 119910 oldest_pkt: 1 119910
src=169.254.156.239 ttl: 255 last_seen: 126184 oldest_pkt: 4 125434, 125684, 125934, 126184

[At this point, adding the address via an iptables rule, packets are being
logged correctly.]

$ echo -169.254.156.239 > /proc/net/xt_recent/DEFAULT
$ cat /proc/net/xt_recent/DEFAULT
src=169.254.156.239 ttl: 0 last_seen: 119910 oldest_pkt: 1 119910
src=169.254.156.239 ttl: 255 last_seen: 126992 oldest_pkt: 10 125434, 125684, 125934, 126184, 126434, 126684, 126934, 126991, 126991, 126992
$ echo -169.254.156.239 > /proc/net/xt_recent/DEFAULT
$ cat /proc/net/xt_recent/DEFAULT
src=169.254.156.239 ttl: 0 last_seen: 119910 oldest_pkt: 1 119910
src=169.254.156.239 ttl: 255 last_seen: 126992 oldest_pkt: 10 125434, 125684, 125934, 126184, 126434, 126684, 126934, 126991, 126991, 126992

[Removing the address via /proc interface failed evidently.]

Possible solutions:
- initialize the addr variable in recent_mt_proc_write
- compare only 4 bytes for IPv4 addresses in recent_entry_lookup

Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-02-24 14:53:12 +01:00
Jan Engelhardt
eb132205ca netfilter: make proc/net/ip* print names from foreign NFPROTO
When extensions were moved to the NFPROTO_UNSPEC wildcard in
ab4f21e6fb, they disappeared from the
procfs files.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-02-18 16:42:19 +01:00
Eric Leblond
2c6764b743 netfilter: nfnetlink_log: fix timeout handling
NFLOG timeout was computed in timer by doing:

    flushtimeout*HZ/100

Default value of flushtimeout was HZ (for 1 second delay). This was
wrong for non 100HZ computer. This patch modify the default delay by
using 100 instead of HZ.

Signed-off-by: Eric Leblond <eric@inl.fr>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-02-18 15:29:49 +01:00
Eric Leblond
5ca431f9ae netfilter: nfnetlink_log: fix per-rule qthreshold override
In NFLOG the per-rule qthreshold should overrides per-instance only
it is set. With current code, the per-rule qthreshold is 1 if not set
and it overrides the per-instance qthreshold.

This patch modifies the default xt_NFLOG threshold from 1 to
0. Thus a value of 0 means there is no per-rule setting and the instance
parameter has to apply.

Signed-off-by: Eric Leblond <eric@inl.fr>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-02-18 15:29:23 +01:00
David S. Miller
0ecc103aec Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/net/gianfar.c
2009-02-09 23:22:21 -08:00
Qu Haoran
d4e2675a61 netfilter: xt_sctp: sctp chunk mapping doesn't work
When user tries to map all chunks given in argument, kernel
works on a copy of the chunkmap, but at the end it doesn't
check the copy, but the orginal one.

Signed-off-by: Qu Haoran <haoran.qu@6wind.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-09 14:34:56 -08:00
Pablo Neira Ayuso
1f9da25616 netfilter: ctnetlink: fix echo if not subscribed to any multicast group
This patch fixes echoing if the socket that has sent the request to
create/update/delete an entry is not subscribed to any multicast
group. With the current code, ctnetlink would not send the echo
message via unicast as nfnetlink_send() would be skip.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-09 14:34:26 -08:00
Pablo Neira Ayuso
c969aa7d2c netfilter: ctnetlink: allow changing NAT sequence adjustment in creation
This patch fixes an inconsistency in the current ctnetlink code
since NAT sequence adjustment bit can only be updated but not set
in the conntrack entry creation.

This patch is used by conntrackd to successfully recover newly
created entries that represent connections with helpers and NAT
payload mangling.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-09 14:33:57 -08:00
Herbert Xu
9a279bcbe3 net: Partially allow skb destructors to be used on receive path
As it currently stands, skb destructors are forbidden on the
receive path because the protocol end-points will overwrite
any existing destructor with their own.

This is the reason why we have to call skb_orphan in the loopback
driver before we reinject the packet back into the stack, thus
creating a period during which loopback traffic isn't charged
to any socket.

With virtualisation, we have a similar problem in that traffic
is reinjected into the stack without being associated with any
socket entity, thus providing no natural congestion push-back
for those poor folks still stuck with UDP.

Now had we been consistent in telling them that UDP simply has
no congestion feedback, I could just fob them off.  Unfortunately,
we appear to have gone to some length in catering for this on
the standard UDP path, with skb/socket accounting so that has
created a very unhealthy dependency.

Alas habits are difficult to break out of, so we may just have
to allow skb destructors on the receive path.

It turns out that making skb destructors useable on the receive path
isn't as easy as it seems.  For instance, simply adding skb_orphan
to skb_set_owner_r isn't enough.  This is because we assume all
over the IP stack that skb->sk is an IP socket if present.

The new transparent proxy code goes one step further and assumes
that skb->sk is the receiving socket if present.

Now all of this can be dealt with by adding simple checks such
as only treating skb->sk as an IP socket if skb->sk->sk_family
matches.  However, it turns out that for bridging at least we
don't need to do all of this work.

This is of interest because most virtualisation setups use bridging
so we don't actually go through the IP stack on the host (with
the exception of our old nemesis the bridge netfilter, but that's
easily taken care of).

So this patch simply adds skb_orphan to the point just before we
enter the IP stack, but after we've gone through the bridge on the
receive path.  It also adds an skb_orphan to the one place in
netfilter that touches skb->sk/skb->destructor, that is, tproxy.

One word of caution, because of the internal code structure, anyone
wishing to deploy this must use skb_set_owner_w as opposed to
skb_set_owner_r since many functions that create a new skb from
an existing one will invoke skb_set_owner_w on the new skb.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-04 16:55:27 -08:00
Harvey Harrison
09640e6365 net: replace uses of __constant_{endian}
Base versions handle constant folding now.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-01 00:45:17 -08:00
Patrick McHardy
748085fcbe netfilter: ctnetlink: fix scheduling while atomic
Caused by call to request_module() while holding nf_conntrack_lock.

Reported-and-tested-by: Kövesdi György <kgy@teledigit.hu>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-21 12:19:49 -08:00
Jan Engelhardt
e6210f3be5 netfilter 08/09: xt_time: print timezone for user information
netfilter: xt_time: print timezone for user information

Let users have a way to figure out if their distro set the kernel
timezone at all.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-12 21:18:36 -08:00
Julia Lawall
cd7fcbf1cb netfilter 07/09: simplify nf_conntrack_alloc() error handling
nf_conntrack_alloc cannot return NULL, so there is no need to check for
NULL before using the value.  I have also removed the initialization of ct
to NULL in nf_conntrack_alloc, since the value is never used, and since
perhaps it might lead one to think that return ct at the end might return
NULL.

The semantic patch that finds this problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@match exists@
expression x, E;
position p1,p2;
statement S1, S2;
@@

x@p1 = nf_conntrack_alloc(...)
... when != x = E
(
  if (x@p2 == NULL || ...) S1 else S2
|
  if (x@p2 == NULL && ...) S1 else S2
)

@other_match exists@
expression match.x, E1, E2;
position p1!=match.p1,match.p2;
@@

x@p1 = E1
... when != x = E2
x@p2

@ script:python depends on !other_match@
p1 << match.p1;
p2 << match.p2;
@@

print "%s: call to nf_conntrack_alloc %s bad test %s" % (p1[0].file,p1[0].line,p2[0].line)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-12 21:18:36 -08:00
Patrick McHardy
656caff20e netfilter 04/09: x_tables: fix match/target revision lookup
Commit 55b69e91 (netfilter: implement NFPROTO_UNSPEC as a wildcard
for extensions) broke revision probing for matches and targets that
are registered with NFPROTO_UNSPEC.

Fix by continuing the search on the NFPROTO_UNSPEC list if nothing
is found on the af-specific lists.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-12 21:18:34 -08:00
Rusty Russell
0f23174aa8 cpumask: prepare for iterators to only go to nr_cpu_ids/nr_cpumask_bits: net
In future all cpumask ops will only be valid (in general) for bit
numbers < nr_cpu_ids.  So use that instead of NR_CPUS in iterators
and other comparisons.

This is always safe: no cpu number can be >= nr_cpu_ids, and
nr_cpu_ids is initialized to NR_CPUS at boot.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Mike Travis <travis@sgi.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-29 22:44:47 -08:00
Simon Horman
68888d1053 IPVS: Make "no destination available" message more consistent between schedulers
Acked-by: Graeme Fowler <graeme@graemef.net>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-29 18:37:36 -08:00
Linus Torvalds
0191b625ca Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1429 commits)
  net: Allow dependancies of FDDI & Tokenring to be modular.
  igb: Fix build warning when DCA is disabled.
  net: Fix warning fallout from recent NAPI interface changes.
  gro: Fix potential use after free
  sfc: If AN is enabled, always read speed/duplex from the AN advertising bits
  sfc: When disabling the NIC, close the device rather than unregistering it
  sfc: SFT9001: Add cable diagnostics
  sfc: Add support for multiple PHY self-tests
  sfc: Merge top-level functions for self-tests
  sfc: Clean up PHY mode management in loopback self-test
  sfc: Fix unreliable link detection in some loopback modes
  sfc: Generate unique names for per-NIC workqueues
  802.3ad: use standard ethhdr instead of ad_header
  802.3ad: generalize out mac address initializer
  802.3ad: initialize ports LACPDU from const initializer
  802.3ad: remove typedef around ad_system
  802.3ad: turn ports is_individual into a bool
  802.3ad: turn ports is_enabled into a bool
  802.3ad: make ntt bool
  ixgbe: Fix set_ringparam in ixgbe to use the same memory pools.
  ...

Fixed trivial IPv4/6 address printing conflicts in fs/cifs/connect.c due
to the conversion to %pI (in this networking merge) and the addition of
doing IPv6 addresses (from the earlier merge of CIFS).
2008-12-28 12:49:40 -08:00
James Morris
cbacc2c7f0 Merge branch 'next' into for-linus 2008-12-25 11:40:09 +11:00
David S. Miller
eb14f01959 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:

	drivers/net/e1000e/ich8lan.c
2008-12-15 20:03:50 -08:00
Ilpo Järvinen
79f55f11a0 nf/dccp: merge errorpaths
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-14 23:19:02 -08:00
Eric Leblond
293a4f2833 netfilter: xt_NFLOG is dependant of nfnetlink_log
The patch "don't call nf_log_packet in NFLOG module" make xt_NFLOG
dependant of nfnetlink_log. This patch forces the dependencies to fix
compilation in case only xt_NFLOG compilation was asked and modifies the
help message accordingly to the change.

Signed-off-by: Eric Leblond <eric@inl.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-10 17:24:33 -08:00
Balazs Scheidler
c49b9f295e tproxy: fixe a possible read from an invalid location in the socket match
TIME_WAIT sockets need to be handled specially, and the socket match
casted inet_timewait_sock instances to inet_sock, which are not
compatible.

Handle this special case by checking sk->sk_state.

Signed-off-by: Balazs Scheidler <bazsi@balabit.hu>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-07 23:53:46 -08:00
James Morris
ec98ce480a Merge branch 'master' into next
Conflicts:
	fs/nfsd/nfs4recover.c

Manually fixed above to use new creds API functions, e.g.
nfs4_save_creds().

Signed-off-by: James Morris <jmorris@namei.org>
2008-12-04 17:16:36 +11:00
David S. Miller
ed77a89c30 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-next-2.6
Conflicts:

	net/netfilter/nf_conntrack_netlink.c
2008-11-28 02:19:15 -08:00
David S. Miller
5b9ab2ec04 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:

	drivers/net/hp-plus.c
	drivers/net/wireless/ath5k/base.c
	drivers/net/wireless/ath9k/recv.c
	net/wireless/reg.c
2008-11-26 23:48:40 -08:00
Patrick McHardy
3ec1925590 netfilter: ctnetlink: fix GFP_KERNEL allocation under spinlock
The previous fix for the conntrack creation race (netfilter: ctnetlink:
fix conntrack creation race) missed a GFP_KERNEL allocation that is
now performed while holding a spinlock. Switch to GFP_ATOMIC.

Reported-and-tested-by: Zoltan Borbely <bozo@andrews.hu>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-26 03:57:44 -08:00
Ingo Molnar
d6e8cc6cc7 netfilter: fix warning in net/netfilter/nf_conntrack_ftp.c
this warning:

  net/netfilter/nf_conntrack_ftp.c: In function 'help':
  net/netfilter/nf_conntrack_ftp.c:360: warning: 'matchoff' may be used uninitialized in this function
  net/netfilter/nf_conntrack_ftp.c:360: warning: 'matchlen' may be used uninitialized in this function

triggers because GCC does not recognize the (correct) error flow
between find_pattern(), 'found', 'matchoff' and 'matchlen'.

Annotate it.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-11-25 18:23:03 +01:00
Patrick McHardy
b54ad409fd netfilter: ctnetlink: fix conntrack creation race
Conntrack creation through ctnetlink has two races:

- the timer may expire and free the conntrack concurrently, causing an
  invalid memory access when attempting to put it in the hash tables

- an identical conntrack entry may be created in the packet processing
  path in the time between the lookup and hash insertion

Hold the conntrack lock between the lookup and insertion to avoid this.

Reported-by: Zoltan Borbely <bozo@andrews.hu>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-24 15:56:17 -08:00
Patrick McHardy
4813eadf6b netfilter: nf_conntrack_ftp: change "partial ..." message to pr_debug()
The message triggers when sending non-FTP data on port 21 or with
certain clients that use multiple syscalls to send the command.

Change to pr_debug() since users have been complaining.

Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-11-24 18:34:48 +01:00
Patrick McHardy
328bd8997d netfilter: nf_conntrack_proto_sctp: avoid bogus warning
net/netfilter/nf_conntrack_proto_sctp.c: In function 'sctp_packet':
net/netfilter/nf_conntrack_proto_sctp.c:376: warning: array subscript is above array bounds

gcc doesn't realize that do_basic_checks() guarantees that there is
at least one valid chunk and thus new_state is never SCTP_CONNTRACK_MAX
after the loop. Initialize to SCTP_CONNTRACK_NONE to avoid the warning.

Based on patch by Wu Fengguang <wfg@linux.intel.com>

Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-11-24 13:47:21 +01:00
Alexey Dobriyan
56bc0f9603 netfilter: nf_conntrack_proto_gre: spread __exit
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-11-20 10:01:37 +01:00
Alexey Dobriyan
b0ceb560a4 netfilter: xt_recent: don't save proc dirs
Not needed, since creation and removal are done by name.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-11-20 09:57:01 +01:00
Patrick McHardy
e17b666a46 netfilter: nf_conntrack: fix warning and prototype mismatch
net/netfilter/nf_conntrack_core.c:46:1: warning: symbol 'nfnetlink_parse_nat_setup_hook' was not declared. Should it be static?

Including the proper header also revealed an incorrect prototype.

Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-11-18 12:24:17 +01:00
Patrick McHardy
d9e150071d netfilter: nfnetlink_log: fix warning and prototype mismatch
net/netfilter/nfnetlink_log.c:537:1: warning: symbol 'nfulnl_log_packet' was not declared. Should it be static?

Including the proper header also revealed an incorrect prototype.

Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-11-18 12:16:52 +01:00
Pablo Neira Ayuso
19abb7b090 netfilter: ctnetlink: deliver events for conntracks changed from userspace
As for now, the creation and update of conntracks via ctnetlink do not
propagate an event to userspace. This can result in inconsistent situations
if several userspace processes modify the connection tracking table by means
of ctnetlink at the same time. Specifically, using the conntrack command
line tool and conntrackd at the same time can trigger unconsistencies.

This patch also modifies the event cache infrastructure to pass the
process PID and the ECHO flag to nfnetlink_send() to report back
to userspace if the process that triggered the change needs so.
Based on a suggestion from Patrick McHardy.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-11-18 11:56:20 +01:00
Pablo Neira Ayuso
226c0c0ef2 netfilter: ctnetlink: helper modules load-on-demand support
This patch adds module loading for helpers via ctnetlink.

* Creation path: We support explicit and implicit helper assignation. For
  the explicit case, we try to load the module. If the module is correctly
  loaded and the helper is present, we return EAGAIN to re-start the
  creation. Otherwise, we return EOPNOTSUPP.
* Update path: release the spin lock, load the module and check. If it is
  present, then return EAGAIN to re-start the update.

This patch provides a refactorized function to lookup-and-set the
connection tracking helper. The function removes the exported symbol
__nf_ct_helper_find as it has not clients anymore.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-11-18 11:54:05 +01:00
Pablo Neira Ayuso
4dc06f9633 netfilter: nf_conntrack: connection tracking helper name persistent aliases
This patch adds the macro MODULE_ALIAS_NFCT_HELPER that defines a
way to provide generic and persistent aliases for the connection
tracking helpers.

This next patch requires this patch.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-11-17 16:01:42 +01:00
Pablo Neira Ayuso
528a3a6f67 netfilter: ctnetlink: get rid of module refcounting in ctnetlink
This patch replaces the unnecessary module refcounting with
the read-side locks. With this patch, all the dump and fill_info
function are called under the RCU read lock.

Based on a patch from Fabian Hugelshofer.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-11-17 16:00:40 +01:00
Pablo Neira Ayuso
bfe2967735 netfilter: ctnetlink: use EOPNOTSUPP instead of EINVAL if the conntrack has no helper
This patch changes the return value if the conntrack has no helper assigned.
Instead of EINVAL, which is reserved for malformed messages, it returns
EOPNOTSUPP.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-11-17 15:55:48 +01:00
Pablo Neira Ayuso
238ede8160 netfilter: ctnetlink: use nf_conntrack_get instead of atomic_inc
Use nf_conntrack_get instead of the direct call to atomic_inc.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-11-17 15:53:33 +01:00
James Morris
2b82892565 Merge branch 'master' into next
Conflicts:
	security/keys/internal.h
	security/keys/process_keys.c
	security/keys/request_key.c

Fixed conflicts above by using the non 'tsk' versions.

Signed-off-by: James Morris <jmorris@namei.org>
2008-11-14 11:29:12 +11:00
David Howells
d76b0d9b2d CRED: Use creds in file structs
Attach creds to file structs and discard f_uid/f_gid.

file_operations::open() methods (such as hppfs_open()) should use file->f_cred
rather than current_cred().  At the moment file->f_cred will be current_cred()
at this point.

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: James Morris <jmorris@namei.org>
Signed-off-by: James Morris <jmorris@namei.org>
2008-11-14 10:39:25 +11:00
David S. Miller
7e452baf6b Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:

	drivers/message/fusion/mptlan.c
	drivers/net/sfc/ethtool.c
	net/mac80211/debugfs_sta.c
2008-11-11 15:43:02 -08:00
Harvey Harrison
b7b45f47d6 netfilter: payload_len is be16, add size of struct rather than size of pointer
payload_len is a be16 value, not cpu_endian, also the size of a ponter
to a struct ipv6hdr was being added, not the size of the struct itself.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-10 16:46:06 -08:00
Harvey Harrison
ca62059b7e ipvs: oldlen, newlen should be be16, not be32
Noticed by sparse:
net/netfilter/ipvs/ip_vs_proto_tcp.c:195:6: warning: incorrect type in argument 5 (different base types)
net/netfilter/ipvs/ip_vs_proto_tcp.c:195:6:    expected restricted __be16 [usertype] oldlen
net/netfilter/ipvs/ip_vs_proto_tcp.c:195:6:    got restricted __be32 [usertype] <noident>
net/netfilter/ipvs/ip_vs_proto_tcp.c:196:6: warning: incorrect type in argument 6 (different base types)
net/netfilter/ipvs/ip_vs_proto_tcp.c:196:6:    expected restricted __be16 [usertype] newlen
net/netfilter/ipvs/ip_vs_proto_tcp.c:196:6:    got restricted __be32 [usertype] <noident>
net/netfilter/ipvs/ip_vs_proto_tcp.c:270:6: warning: incorrect type in argument 5 (different base types)
net/netfilter/ipvs/ip_vs_proto_tcp.c:270:6:    expected restricted __be16 [usertype] oldlen
net/netfilter/ipvs/ip_vs_proto_tcp.c:270:6:    got restricted __be32 [usertype] <noident>
net/netfilter/ipvs/ip_vs_proto_tcp.c:271:6: warning: incorrect type in argument 6 (different base types)
net/netfilter/ipvs/ip_vs_proto_tcp.c:271:6:    expected restricted __be16 [usertype] newlen
net/netfilter/ipvs/ip_vs_proto_tcp.c:271:6:    got restricted __be32 [usertype] <noident>
net/netfilter/ipvs/ip_vs_proto_udp.c:206:6: warning: incorrect type in argument 5 (different base types)
net/netfilter/ipvs/ip_vs_proto_udp.c:206:6:    expected restricted __be16 [usertype] oldlen
net/netfilter/ipvs/ip_vs_proto_udp.c:206:6:    got restricted __be32 [usertype] <noident>
net/netfilter/ipvs/ip_vs_proto_udp.c:207:6: warning: incorrect type in argument 6 (different base types)
net/netfilter/ipvs/ip_vs_proto_udp.c:207:6:    expected restricted __be16 [usertype] newlen
net/netfilter/ipvs/ip_vs_proto_udp.c:207:6:    got restricted __be32 [usertype] <noident>
net/netfilter/ipvs/ip_vs_proto_udp.c:282:6: warning: incorrect type in argument 5 (different base types)
net/netfilter/ipvs/ip_vs_proto_udp.c:282:6:    expected restricted __be16 [usertype] oldlen
net/netfilter/ipvs/ip_vs_proto_udp.c:282:6:    got restricted __be32 [usertype] <noident>
net/netfilter/ipvs/ip_vs_proto_udp.c:283:6: warning: incorrect type in argument 6 (different base types)
net/netfilter/ipvs/ip_vs_proto_udp.c:283:6:    expected restricted __be16 [usertype] newlen
net/netfilter/ipvs/ip_vs_proto_udp.c:283:6:    got restricted __be32 [usertype] <noident>

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Acked-by: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-06 23:09:56 -08:00
David S. Miller
9eeda9abd1 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:

	drivers/net/wireless/ath5k/base.c
	net/8021q/vlan_core.c
2008-11-06 22:43:03 -08:00
Alexey Dobriyan
efb9a8c28c netfilter: netns ct: walk netns list under RTNL
netns list (just list) is under RTNL. But helper and proto unregistration
happen during rmmod when RTNL is not held, and that's how it was tested:
modprobe/rmmod vs clone(CLONE_NEWNET)/exit.

BUG: unable to handle kernel paging request at 0000000000100100	<===
IP: [<ffffffffa009890f>] nf_conntrack_l4proto_unregister+0x96/0xae [nf_conntrack]
PGD 15e300067 PUD 15e1d8067 PMD 0
Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
last sysfs file: /sys/kernel/uevent_seqnum
CPU 0
Modules linked in: nf_conntrack_proto_sctp(-) nf_conntrack_proto_dccp(-) af_packet iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 iptable_filter ip_tables xt_tcpudp ip6table_filter ip6_tables x_tables ipv6 sr_mod cdrom [last unloaded: nf_conntrack_proto_sctp]
Pid: 16758, comm: rmmod Not tainted 2.6.28-rc2-netns-xfrm #3
RIP: 0010:[<ffffffffa009890f>]  [<ffffffffa009890f>] nf_conntrack_l4proto_unregister+0x96/0xae [nf_conntrack]
RSP: 0018:ffff88015dc1fec8  EFLAGS: 00010212
RAX: 0000000000000000 RBX: 00000000001000f8 RCX: 0000000000000000
RDX: ffffffffa009575c RSI: 0000000000000003 RDI: ffffffffa00956b5
RBP: ffff88015dc1fed8 R08: 0000000000000002 R09: 0000000000000000
R10: 0000000000000000 R11: ffff88015dc1fe48 R12: ffffffffa0458f60
R13: 0000000000000880 R14: 00007fff4c361d30 R15: 0000000000000880
FS:  00007f624435a6f0(0000) GS:ffffffff80521580(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000100100 CR3: 0000000168969000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process rmmod (pid: 16758, threadinfo ffff88015dc1e000, task ffff880179864218)
Stack:
 ffffffffa0459100 0000000000000000 ffff88015dc1fee8 ffffffffa0457934
 ffff88015dc1ff78 ffffffff80253fef 746e6e6f635f666e 6f72705f6b636172
 00707463735f6f74 ffffffff8024cb30 00000000023b8010 0000000000000000
Call Trace:
 [<ffffffffa0457934>] nf_conntrack_proto_sctp_fini+0x10/0x1e [nf_conntrack_proto_sctp]
 [<ffffffff80253fef>] sys_delete_module+0x19f/0x1fe
 [<ffffffff8024cb30>] ? trace_hardirqs_on_caller+0xf0/0x114
 [<ffffffff803ea9b2>] ? trace_hardirqs_on_thunk+0x3a/0x3f
 [<ffffffff8020b52b>] system_call_fastpath+0x16/0x1b
Code: 13 35 e0 e8 c4 6c 1a e0 48 8b 1d 6d c6 46 e0 eb 16 48 89 df 4c 89 e2 48 c7 c6 fc 85 09 a0 e8 61 cd ff ff 48 8b 5b 08 48 83 eb 08 <48> 8b 43 08 0f 18 08 48 8d 43 08 48 3d 60 4f 50 80 75 d3 5b 41
RIP  [<ffffffffa009890f>] nf_conntrack_l4proto_unregister+0x96/0xae [nf_conntrack]
 RSP <ffff88015dc1fec8>
CR2: 0000000000100100
---[ end trace bde8ac82debf7192 ]---

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-05 03:03:18 -08:00
Eric Leblond
5f7340eff8 netfilter: xt_NFLOG: don't call nf_log_packet in NFLOG module.
This patch modifies xt_NFLOG to suppress the call to nf_log_packet()
function. The call of this wrapper in xt_NFLOG was causing NFLOG to
use the first initialized module. Thus, if ipt_ULOG is loaded before
nfnetlink_log all NFLOG rules are treated as plain LOG rules.

Signed-off-by: Eric Leblond <eric@inl.fr>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-11-04 14:21:08 +01:00
Alexey Dobriyan
6d9f239a1e net: '&' redux
I want to compile out proc_* and sysctl_* handlers totally and
stub them to NULL depending on config options, however usage of &
will prevent this, since taking adress of NULL pointer will break
compilation.

So, drop & in front of every ->proc_handler and every ->strategy
handler, it was never needed in fact.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-03 18:21:05 -08:00