Commit graph

877 commits

Author SHA1 Message Date
Linus Torvalds
4ef58d4e2a Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (42 commits)
  tree-wide: fix misspelling of "definition" in comments
  reiserfs: fix misspelling of "journaled"
  doc: Fix a typo in slub.txt.
  inotify: remove superfluous return code check
  hdlc: spelling fix in find_pvc() comment
  doc: fix regulator docs cut-and-pasteism
  mtd: Fix comment in Kconfig
  doc: Fix IRQ chip docs
  tree-wide: fix assorted typos all over the place
  drivers/ata/libata-sff.c: comment spelling fixes
  fix typos/grammos in Documentation/edac.txt
  sysctl: add missing comments
  fs/debugfs/inode.c: fix comment typos
  sgivwfb: Make use of ARRAY_SIZE.
  sky2: fix sky2_link_down copy/paste comment error
  tree-wide: fix typos "couter" -> "counter"
  tree-wide: fix typos "offest" -> "offset"
  fix kerneldoc for set_irq_msi()
  spidev: fix double "of of" in comment
  comment typo fix: sybsystem -> subsystem
  ...
2009-12-09 19:43:33 -08:00
Linus Torvalds
d7fc02c7ba 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: (1815 commits)
  mac80211: fix reorder buffer release
  iwmc3200wifi: Enable wimax core through module parameter
  iwmc3200wifi: Add wifi-wimax coexistence mode as a module parameter
  iwmc3200wifi: Coex table command does not expect a response
  iwmc3200wifi: Update wiwi priority table
  iwlwifi: driver version track kernel version
  iwlwifi: indicate uCode type when fail dump error/event log
  iwl3945: remove duplicated event logging code
  b43: fix two warnings
  ipw2100: fix rebooting hang with driver loaded
  cfg80211: indent regulatory messages with spaces
  iwmc3200wifi: fix NULL pointer dereference in pmkid update
  mac80211: Fix TX status reporting for injected data frames
  ath9k: enable 2GHz band only if the device supports it
  airo: Fix integer overflow warning
  rt2x00: Fix padding bug on L2PAD devices.
  WE: Fix set events not propagated
  b43legacy: avoid PPC fault during resume
  b43: avoid PPC fault during resume
  tcp: fix a timewait refcnt race
  ...

Fix up conflicts due to sysctl cleanups (dead sysctl_check code and
CTL_UNNUMBERED removed) in
	kernel/sysctl_check.c
	net/ipv4/sysctl_net_ipv4.c
	net/ipv6/addrconf.c
	net/sctp/sysctl.c
2009-12-08 07:55:01 -08:00
Jiri Kosina
d014d04386 Merge branch 'for-next' into for-linus
Conflicts:

	kernel/irq/chip.c
2009-12-07 18:36:35 +01:00
André Goddard Rosa
af901ca181 tree-wide: fix assorted typos all over the place
That is "success", "unknown", "through", "performance", "[re|un]mapping"
, "access", "default", "reasonable", "[con]currently", "temperature"
, "channel", "[un]used", "application", "example","hierarchy", "therefore"
, "[over|under]flow", "contiguous", "threshold", "enough" and others.

Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-12-04 15:39:55 +01:00
David S. Miller
424eff9751 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-next-2.6 2009-12-03 13:23:12 -08:00
Octavian Purdila
09ad9bc752 net: use net_eq to compare nets
Generated with the following semantic patch

@@
struct net *n1;
struct net *n2;
@@
- n1 == n2
+ net_eq(n1, n2)

@@
struct net *n1;
struct net *n2;
@@
- n1 != n2
+ !net_eq(n1, n2)

applied over {include,net,drivers/net}.

Signed-off-by: Octavian Purdila <opurdila@ixiacom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-25 15:14:13 -08:00
Joe Perches
3666ed1c48 netfilter: net/ipv[46]/netfilter: Move && and || to end of previous line
Compile tested only.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-11-23 23:17:06 +01:00
Eric W. Biederman
bb9074ff58 Merge commit 'v2.6.32-rc7'
Resolve the conflict between v2.6.32-rc7 where dn_def_dev_handler
gets a small bug fix and the sysctl tree where I am removing all
sysctl strategy routines.
2009-11-17 01:01:34 -08:00
Eric W. Biederman
f8572d8f2a sysctl net: Remove unused binary sysctl code
Now that sys_sysctl is a compatiblity wrapper around /proc/sys
all sysctl strategy routines, and all ctl_name and strategy
entries in the sysctl tables are unused, and can be
revmoed.

In addition neigh_sysctl_register has been modified to no longer
take a strategy argument and it's callers have been modified not
to pass one.

Cc: "David Miller" <davem@davemloft.net>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Cc: netdev@vger.kernel.org
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2009-11-12 02:05:06 -08:00
Patrick McHardy
dee5817e88 netfilter: remove unneccessary checks from netlink notifiers
The NETLINK_URELEASE notifier is only invoked for bound sockets, so
there is no need to check ->pid again.

Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-11-06 17:04:00 +01:00
David S. Miller
230f9bb701 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/net/usb/cdc_ether.c

All CDC ethernet devices of type USB_CLASS_COMM need to use
'&mbm_info'.

Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-06 00:55:55 -08:00
Jozsef Kadlecsik
f9dd09c7f7 netfilter: nf_nat: fix NAT issue in 2.6.30.4+
Vitezslav Samel discovered that since 2.6.30.4+ active FTP can not work
over NAT. The "cause" of the problem was a fix of unacknowledged data
detection with NAT (commit a3a9f79e36).
However, actually, that fix uncovered a long standing bug in TCP conntrack:
when NAT was enabled, we simply updated the max of the right edge of
the segments we have seen (td_end), by the offset NAT produced with
changing IP/port in the data. However, we did not update the other parameter
(td_maxend) which is affected by the NAT offset. Thus that could drift
away from the correct value and thus resulted breaking active FTP.

The patch below fixes the issue by *not* updating the conntrack parameters
from NAT, but instead taking into account the NAT offsets in conntrack in a
consistent way. (Updating from NAT would be more harder and expensive because
it'd need to re-calculate parameters we already calculated in conntrack.)

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-06 00:43:42 -08:00
Hannes Eder
76ac894080 netfilter: nf_nat_helper: tidy up adjust_tcp_sequence
The variable 'other_way' gets initialized but is not read afterwards,
so remove it.  Pass the right arguments to a pr_debug call.

While being at tidy up a bit and it fix this checkpatch warning:
  WARNING: suspect code indent for conditional statements

Signed-off-by: Hannes Eder <heder@google.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-11-05 15:51:19 +01:00
Eric Dumazet
9481721be1 netfilter: remove synchronize_net() calls in ip_queue/ip6_queue
nf_unregister_queue_handlers() already does a synchronize_rcu()
call, we dont need to do it again in callers.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-11-04 21:14:31 +01:00
Eric Dumazet
c720c7e838 inet: rename some inet_sock fields
In order to have better cache layouts of struct sock (separate zones
for rx/tx paths), we need this preliminary patch.

Goal is to transfert fields used at lookup time in the first
read-mostly cache line (inside struct sock_common) and move sk_refcnt
to a separate cache line (only written by rx path)

This patch adds inet_ prefix to daddr, rcv_saddr, dport, num, saddr,
sport and id fields. This allows a future patch to define these
fields as macros, like sk_refcnt, without name clashes.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-18 18:52:53 -07:00
Patrick McHardy
3993832464 netfilter: nfnetlink: constify message attributes and headers
Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-08-25 16:07:58 +02:00
Patrick McHardy
74f7a6552c netfilter: nf_conntrack: log packets dropped by helpers
Log packets dropped by helpers using the netfilter logging API. This
is useful in combination with nfnetlink_log to analyze those packets
in userspace for debugging.

Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-08-25 15:33:08 +02:00
Maximilian Engelhardt
cce5a5c302 netfilter: nf_nat: fix inverted logic for persistent NAT mappings
Kernel 2.6.30 introduced a patch [1] for the persistent option in the
netfilter SNAT target. This is exactly what we need here so I had a quick look
at the code and noticed that the patch is wrong. The logic is simply inverted.
The patch below fixes this.

Also note that because of this the default behavior of the SNAT target has
changed since kernel 2.6.30 as it now ignores the destination IP in choosing
the source IP for nating (which should only be the case if the persistent
option is set).

[1] http://git.eu.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=98d500d66cb7940747b424b245fc6a51ecfbf005

Signed-off-by: Maximilian Engelhardt <maxi@daemonizer.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-08-24 19:24:54 +02:00
Jan Engelhardt
35aad0ffdf netfilter: xtables: mark initial tables constant
The inputted table is never modified, so should be considered const.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-08-24 14:56:30 +02:00
Patrick McHardy
dc05a564ab Merge branch 'master' of git://dev.medozas.de/linux 2009-08-10 17:14:59 +02:00
Jan Engelhardt
e2fe35c17f netfilter: xtables: check for standard verdicts in policies
This adds the second check that Rusty wanted to have a long time ago. :-)

Base chain policies must have absolute verdicts that cease processing
in the table, otherwise rule execution may continue in an unexpected
spurious fashion (e.g. next chain that follows in memory).

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
2009-08-10 13:35:31 +02:00
Jan Engelhardt
90e7d4ab5c netfilter: xtables: check for unconditionality of policies
This adds a check that iptables's original author Rusty set forth in
a FIXME comment.

Underflows in iptables are better known as chain policies, and are
required to be unconditional or there would be a stochastical chance
for the policy rule to be skipped if it does not match. If that were
to happen, rule execution would continue in an unexpected spurious
fashion.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
2009-08-10 13:35:29 +02:00
Jan Engelhardt
a7d51738e7 netfilter: xtables: ignore unassigned hooks in check_entry_size_and_hooks
The "hook_entry" and "underflow" array contains values even for hooks
not provided, such as PREROUTING in conjunction with the "filter"
table. Usually, the values point to whatever the next rule is. For
the upcoming unconditionality and underflow checking patches however,
we must not inspect that arbitrary rule.

Skipping unassigned hooks seems like a good idea, also because
newinfo->hook_entry and newinfo->underflow will then continue to have
the poison value for detecting abnormalities.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
2009-08-10 13:35:28 +02:00
Jan Engelhardt
47901dc2c4 netfilter: xtables: use memcmp in unconditional check
Instead of inspecting each u32/char open-coded, clean up and make use
of memcmp. On some arches, memcmp is implemented as assembly or GCC's
__builtin_memcmp which can possibly take advantages of known
alignment.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
2009-08-10 13:35:27 +02:00
Jan Engelhardt
e5afbba186 netfilter: iptables: remove unused datalen variable
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
2009-08-10 13:35:25 +02:00
Jan Engelhardt
f88e6a8a50 netfilter: xtables: switch table AFs to nfproto
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
2009-08-10 13:35:23 +02:00
Jan Engelhardt
24c232d8e9 netfilter: xtables: switch hook PFs to nfproto
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
2009-08-10 13:35:21 +02:00
Jan Engelhardt
57750a22ed netfilter: conntrack: switch hook PFs to nfproto
Simple substitution to indicate that the fields indeed use the
NFPROTO_ space.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
2009-08-10 13:35:20 +02:00
Rafael Laufer
549812799c netfilter: nf_conntrack: add SCTP support for SO_ORIGINAL_DST
Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-08-10 10:08:27 +02:00
Patrick McHardy
a3a9f79e36 netfilter: tcp conntrack: fix unacknowledged data detection with NAT
When NAT helpers change the TCP packet size, the highest seen sequence
number needs to be corrected. This is currently only done upwards, when
the packet size is reduced the sequence number is unchanged. This causes
TCP conntrack to falsely detect unacknowledged data and decrease the
timeout.

Fix by updating the highest seen sequence number in both directions after
packet mangling.

Tested-by: Krzysztof Piotr Oledzki <ole@ans.pl>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-06-29 14:07:56 +02:00
Patrick McHardy
24992eacd8 netfilter: ip_tables: fix build error
Fix build error introduced by commit bb70dfa5 (netfilter: xtables:
consolidate comefrom debug cast access):

net/ipv4/netfilter/ip_tables.c: In function 'ipt_do_table':
net/ipv4/netfilter/ip_tables.c:421: error: 'comefrom' undeclared (first use in this function)
net/ipv4/netfilter/ip_tables.c:421: error: (Each undeclared identifier is reported only once
net/ipv4/netfilter/ip_tables.c:421: error: for each function it appears in.)

Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-06-12 01:53:09 +02:00
Patrick McHardy
36432dae73 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2009-06-11 16:00:49 +02:00
David S. Miller
0808dc8093 netfilter: Fix extra semi-colon in skb_walk_frags() changes.
Noticed by Jesper Dangaard Brouer

Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-09 18:05:28 -07:00
David S. Miller
343a99724e netfilter: Use frag list abstraction interfaces.
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-09 00:23:58 -07:00
Jan Kasprzak
f87fb666bb netfilter: nf_ct_icmp: keep the ICMP ct entries longer
Current conntrack code kills the ICMP conntrack entry as soon as
the first reply is received. This is incorrect, as we then see only
the first ICMP echo reply out of several possible duplicates as
ESTABLISHED, while the rest will be INVALID. Also this unnecessarily
increases the conntrackd traffic on H-A firewalls.

Make all the ICMP conntrack entries (including the replied ones)
last for the default of nf_conntrack_icmp{,v6}_timeout seconds.

Signed-off-by: Jan "Yenya" Kasprzak <kas@fi.muni.cz>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-06-08 15:53:43 +02:00
Florian Westphal
17f2f52be0 netfilter: ipt_MASQUERADE: remove redundant rwlock
The lock "protects" an assignment and a comparision of an integer.
When the caller of device_cmp() evaluates the result, nat->masq_index
may already have been changed (regardless if the lock is there or not).

So, the lock either has to be held during nf_ct_iterate_cleanup(),
or can be removed.

This does the latter.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-06-05 13:26:21 +02:00
Evgeniy Polyakov
a5e7882096 netfilter: x_tables: added hook number into match extension parameter structure.
Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-06-04 16:54:42 +02:00
Eric Dumazet
adf30907d6 net: skb->dst accessors
Define three accessors to get/set dst attached to a skb

struct dst_entry *skb_dst(const struct sk_buff *skb)

void skb_dst_set(struct sk_buff *skb, struct dst_entry *dst)

void skb_dst_drop(struct sk_buff *skb)
This one should replace occurrences of :
dst_release(skb->dst)
skb->dst = NULL;

Delete skb->dst field

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-03 02:51:04 -07:00
Eric Dumazet
511c3f92ad net: skb->rtable accessor
Define skb_rtable(const struct sk_buff *skb) accessor to get rtable from skb

Delete skb->rtable field

Setting rtable is not allowed, just set dst instead as rtable is an alias.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-03 02:51:02 -07:00
Pablo Neira Ayuso
17e6e4eac0 netfilter: conntrack: simplify event caching system
This patch simplifies the conntrack event caching system by removing
several events:

 * IPCT_[*]_VOLATILE, IPCT_HELPINFO and IPCT_NATINFO has been deleted
   since the have no clients.
 * IPCT_COUNTER_FILLING which is a leftover of the 32-bits counter
   days.
 * IPCT_REFRESH which is not of any use since we always include the
   timeout in the messages.

After this patch, the existing events are:

 * IPCT_NEW, IPCT_RELATED and IPCT_DESTROY, that are used to identify
 addition and deletion of entries.
 * IPCT_STATUS, that notes that the status bits have changes,
 eg. IPS_SEEN_REPLY and IPS_ASSURED.
 * IPCT_PROTOINFO, that reports that internal protocol information has
 changed, eg. the TCP, DCCP and SCTP protocol state.
 * IPCT_HELPER, that a helper has been assigned or unassigned to this
 entry.
 * IPCT_MARK and IPCT_SECMARK, that reports that the mark has changed, this
 covers the case when a mark is set to zero.
 * IPCT_NATSEQADJ, to report that there's updates in the NAT sequence
 adjustment.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2009-06-02 20:08:46 +02:00
Jan Engelhardt
bb70dfa5f8 netfilter: xtables: consolidate comefrom debug cast access
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
2009-05-08 10:30:49 +02:00
Jan Engelhardt
7a6b1c46e2 netfilter: xtables: remove another level of indent
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
2009-05-08 10:30:49 +02:00
Jan Engelhardt
9452258d81 netfilter: xtables: remove some goto
Combining two ifs, and goto is easily gone.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
2009-05-08 10:30:48 +02:00
Jan Engelhardt
a1ff4ac84e netfilter: xtables: reduce indent level by one
Cosmetic only. Transformation applied:

	-if (foo) { long block; } else { short block; }
	+if (!foo) { short block; continue; } long block;

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
2009-05-08 10:30:48 +02:00
Jan Engelhardt
98e8640316 netfilter: xtables: consolidate open-coded logic
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
2009-05-08 10:30:48 +02:00
Jan Engelhardt
4f2f6f236a netfilter: xtables: fix const inconsistency
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
2009-05-08 10:30:47 +02:00
Jan Engelhardt
ccf5bd8c27 netfilter: xtables: remove redundant casts
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
2009-05-08 10:30:47 +02:00
Jan Engelhardt
4ba351cf86 netfilter: xtables: use NFPROTO_ in standard targets
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
2009-05-08 10:30:47 +02:00
Jan Engelhardt
4b1e27e99f netfilter: queue: use NFPROTO_ for queue callsites
af is an nfproto.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
2009-05-08 10:30:46 +02:00
Jan Engelhardt
383ca5b874 netfilter: xtables: use NFPROTO_ for xt_proto_init callsites
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
2009-05-08 10:30:46 +02:00