Commit Graph

9051 Commits

Author SHA1 Message Date
David S. Miller
44ccff1f53 rose: Use sock_graft() and remove bogus sk_socket and sk_sleep init.
This is the rose variant of changeset
9375cb8a12
("ax25: Use sock_graft() and remove bogus sk_socket and sk_sleep init.")

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-17 02:39:21 -07:00
David S. Miller
7b66767f96 netrom: Use sock_graft() and remove bogus sk_socket and sk_sleep init.
This is the netrom variant of changeset
9375cb8a12
("ax25: Use sock_graft() and remove bogus sk_socket and sk_sleep init.")

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-17 02:36:44 -07:00
David S. Miller
9375cb8a12 ax25: Use sock_graft() and remove bogus sk_socket and sk_sleep init.
The way that listening sockets work in ax25 is that the packet input
code path creates new socks via ax25_make_new() and attaches them
to the incoming SKB.  This SKB gets queued up into the listening
socket's receive queue.

When accept()'d the sock gets hooked up to the real parent socket.
Alternatively, if the listening socket is closed and released, any
unborn socks stuff up in the receive queue get released.

So during this time period these sockets are unreachable in any
other way, so no wakeup events nor references to their ->sk_socket
and ->sk_sleep members can occur.  And even if they do, all such
paths have to make NULL checks.

So do not deceptively initialize them in ax25_make_new() to the
values in the listening socket.  Leave them at NULL.

Finally, use sock_graft() in ax25_accept().

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-17 02:20:54 -07:00
David S. Miller
ee5850defc llc: Use sock_graft() instead of by-hand version.
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-17 01:21:03 -07:00
David S. Miller
22196d3648 decnet: Remove SOCK_SLEEP_{PRE,POST} usage.
Just expand the wait sequence.  And as a nice side-effect
the timeout is respected now.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-17 01:06:01 -07:00
David S. Miller
caea902f72 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:

	drivers/net/wireless/rt2x00/Kconfig
	drivers/net/wireless/rt2x00/rt2x00usb.c
	net/sctp/protocol.c
2008-06-16 18:25:48 -07:00
Eric Kinzie
7e903c2ae3 atm: [br2864] fix routed vcmux support
From: Eric Kinzie <ekinzie@cmf.nrl.navy.mil>
Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-16 17:18:18 -07:00
Jorge Boncompte [DTI2]
27141666b6 atm: [br2684] Fix oops due to skb->dev being NULL
It happens that if a packet arrives in a VC between the call to open it on
the hardware and the call to change the backend to br2684, br2684_regvcc
processes the packet and oopses dereferencing skb->dev because it is
NULL before the call to br2684_push().

Signed-off-by: Jorge Boncompte [DTI2] <jorge@dti2.net>
Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
2008-06-16 17:15:33 -07:00
Pavel Emelyanov
33de014c63 inet6: add struct net argument to inet6_ehashfn
Same as for inet_hashfn, prepare its ipv6 incarnation.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-16 17:13:48 -07:00
Pavel Emelyanov
9f26b3add3 inet: add struct net argument to inet_ehashfn
Although this hash takes addresses into account, the ehash chains
can also be too long when, for instance, communications via lo occur.
So, prepare the inet_hashfn to take struct net into account.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-16 17:13:27 -07:00
Pavel Emelyanov
2086a65078 inet: add struct net argument to inet_lhashfn
Listening-on-one-port sockets in many namespaces produce long 
chains in the listening_hash-es, so prepare the inet_lhashfn to 
take struct net into account.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-16 17:13:08 -07:00
Pavel Emelyanov
7f635ab71e inet: add struct net argument to inet_bhashfn
Binding to some port in many namespaces may create too long
chains in bhash-es, so prepare the hashfn to take struct net
into account.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-16 17:12:49 -07:00
Pavel Emelyanov
19c7578fb2 udp: add struct net argument to udp_hashfn
Every caller already has this one. The new argument is currently 
unused, but this will be fixed shortly.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-16 17:12:29 -07:00
Pavel Emelyanov
e31634931d udp: provide a struct net pointer for __udp[46]_lib_mcast_deliver
They both calculate the hash chain, but currently do not have
a struct net pointer, so pass one there via additional argument,
all the more so their callers already have such.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-16 17:12:11 -07:00
Pavel Emelyanov
d6266281f8 udp: introduce a udp_hashfn function
Currently the chain to store a UDP socket is calculated with
simple (x & (UDP_HTABLE_SIZE - 1)). But taking net into account
would make this calculation a bit more complex, so moving it into
a function would help.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-16 17:11:50 -07:00
Rami Rosen
a9d246dbb0 ipv4: Remove unused definitions in net/ipv4/tcp_ipv4.c.
1) Remove ICMP_MIN_LENGTH, as it is unused.

2) Remove unneeded tcp_v4_send_check() declaration.

Signed-off-by: Rami Rosen <ramirose@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-16 17:07:16 -07:00
Eric Dumazet
68be802cd5 raw: Restore /proc/net/raw correct behavior
I just noticed "cat /proc/net/raw" was buggy, missing '\n' separators.

I believe this was introduced by commit 8cd850efa4 
([RAW]: Cleanup IPv4 raw_seq_show.)

This trivial patch restores correct behavior, and applies to current 
Linus tree (should also be applied to stable tree as well.)

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-16 17:03:32 -07:00
Ben Hutchings
6de329e26c net: Fix test for VLAN TX checksum offload capability
Selected device feature bits can be propagated to VLAN devices, so we
can make use of TX checksum offload and TSO on VLAN-tagged packets.
However, if the physical device does not do VLAN tag insertion or
generic checksum offload then the test for TX checksum offload in
dev_queue_xmit() will see a protocol of htons(ETH_P_8021Q) and yield
false.

This splits the checksum offload test into two functions:

- can_checksum_protocol() tests a given protocol against a feature bitmask

- dev_can_checksum() first tests the skb protocol against the device
  features; if that fails and the protocol is htons(ETH_P_8021Q) then
  it tests the encapsulated protocol against the effective device
  features for VLANs

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Acked-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-16 17:02:28 -07:00
Vlad Yasevich
319fa2a24f sctp: Correclty set changeover_active for SFR-CACC
Right now, any time we set a primary transport we set
the changeover_active flag.  As a result, we invoke SFR-CACC
even when there has been no changeover events.

Only set changeover_active, when there is a true changeover
event, i.e. we had a primary path and we are changing to
another transport.

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-16 17:00:29 -07:00
Wei Yongjun
80896a3584 sctp: Correctly cleanup procfs entries upon failure.
This patch remove the proc fs entry which has been created if fail to
set up proc fs entry for the SCTP protocol.

Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-16 16:59:55 -07:00
David S. Miller
93653e0448 tcp: Revert reset of deferred accept changes in 2.6.26
Ingo's system is still seeing strange behavior, and he
reports that is goes away if the rest of the deferred
accept changes are reverted too.

Therefore this reverts e4c7884028
("[TCP]: TCP_DEFER_ACCEPT updates - dont retxmt synack") and
539fae89be ("[TCP]: TCP_DEFER_ACCEPT
updates - defer timeout conflicts with max_thresh").

Just like the other revert, these ideas can be revisited for
2.6.27

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-16 16:57:40 -07:00
YOSHIFUJI Hideaki
2b4743bd6b ipv6 sit: Avoid extra need for compat layer in PRL management.
We've introduced extra need of compat layer for ip_tunnel_prl{}
for PRL (Potential Router List) management.  Though compat_ioctl
is still missing in ipv4/ipv6, let's make the interface more
straight-forward and eliminate extra need for nasty compat layer
anyway since the interface is new for 2.6.26.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-16 16:48:20 -07:00
Jesper Dangaard Brouer
47083fc073 pkt_sched: Change HTB_HYSTERESIS to a runtime parameter htb_hysteresis.
Add a htb_hysteresis parameter to htb_sch.ko and by sysfs magic make
it runtime adjustable via
/sys/module/sch_htb/parameters/htb_hysteresis mode 640.

Signed-off-by: Jesper Dangaard Brouer <hawk@comx.dk>
Acked-by: Martin Devera <devik@cdi.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-16 16:39:32 -07:00
Jesper Dangaard Brouer
f9ffcedddb pkt_sched: HTB scheduler, change default hysteresis mode to off.
The HTB hysteresis mode reduce the CPU load, but at the
cost of scheduling accuracy.

On ADSL links (512 kbit/s upstream), this inaccuracy introduce
significant jitter, enought to disturbe VoIP.  For details see my
masters thesis (http://www.adsl-optimizer.dk/thesis/), chapter 7,
section 7.3.1, pp 69-70.

Signed-off-by: Jesper Dangaard Brouer <hawk@comx.dk>
Acked-by: Martin Devera <devik@cdi.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-16 16:38:33 -07:00
David S. Miller
34a5d71305 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/linville/wireless-2.6 2008-06-14 17:33:38 -07:00
David S. Miller
942e7b102a Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/linville/wireless-next-2.6 2008-06-14 17:15:39 -07:00
Brian Haley
7d06b2e053 net: change proto destroy method to return void
Change struct proto destroy function pointer to return void.  Noticed
by Al Viro.

Signed-off-by: Brian Haley <brian.haley@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-14 17:04:49 -07:00
Vladimir Koutny
87291c0269 mac80211: eliminate IBSS warning in rate_lowest_index()
In IBSS mode prior to join/creation of new IBSS it is possible that
a frame from unknown station is received and an ibss_add_sta() is
called. This will cause a warning in rate_lowest_index() since the
list of supported rates of our station is not initialized yet.

The fix is to add ibss stations with a rate we received that frame
at; this single-element set will be extended later based on beacon
data. Also there is no need to store stations from a foreign IBSS.

Signed-off-by: Vladimir Koutny <vlado@ksp.sk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-14 12:18:14 -04:00
Harvey Harrison
c644bce95f mac80211: tkip.c use a local struct tkip_ctx in ieee80211_get_tkip_key
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-14 12:18:14 -04:00
Harvey Harrison
7c70537f97 mac80211: tkip.c fold ieee80211_gen_rc4key into its one caller
Also change the arguments of the phase1, 2 key mixing to take
a pointer to the encrytion key and the tkip_ctx in the same
order.

Do the dereference of the encryption key in the callers.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-14 12:18:13 -04:00
Harvey Harrison
c801242c38 mac80211: tkip.c consolidate tkip IV writing in helper
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-14 12:18:13 -04:00
Harvey Harrison
87228f5743 mac80211: rx.c use new helpers
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-14 12:18:13 -04:00
Harvey Harrison
002aaf4ea6 mac80211: wme.c use new helpers
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-14 12:18:13 -04:00
Harvey Harrison
a494bb1cae mac80211: use new helpers in util.c - ieee80211_get_bssid()
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-14 12:18:13 -04:00
Harvey Harrison
d5184cacf3 mac80211: wpa.c use new access helpers
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-14 12:18:13 -04:00
Harvey Harrison
6693be7124 mac80211: add utility function to get header length
Take a __le16 directly rather than a host-endian value.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-14 12:18:13 -04:00
Harvey Harrison
c9c6950c14 mac80211: make ieee80211_get_hdrlen_from_skb return unsigned
Many callers already expect it to.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-14 12:18:12 -04:00
Tomas Winkler
dc0ae30c31 mac80211: fix beacon interval value
This patch fixes setting beacon interval

1. in register_hw it honors value requested by the driver
2. It uses default 100 instead of 1000 or 10000. Scanning for beacon
interval ~1sec and above is not sane

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-14 12:18:11 -04:00
Ron Rindjunsky
8d5e0d58b3 mac80211: do not fragment while aggregation is in use
This patch denies the use of framentation while ampdu is used.

Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-14 12:18:10 -04:00
Tony Vroon
d2c3cc0070 mac80211: implement EU regulatory domain
Implement missing EU regulatory domain for mac80211. Based on the
information in IEEE 802.11-2007 (specifically pages 1142, 1143 & 1148)
and ETSI 301 893 (V1.4.1).
With thanks to Johannes Berg.

Signed-off-by: Tony Vroon <tony@linx.net>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-14 12:18:03 -04:00
David S. Miller
4ae127d1b6 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:

	drivers/net/smc911x.c
2008-06-13 20:52:39 -07:00
Tomas Winkler
995ad6c5a4 mac80211: add missing new line in debug print HT_DEBUG
This patch adds '\n' in debug printk (wme.c HT DEBUG)

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-13 16:14:53 -04:00
Abhijeet Kolekar
5c5f9664d5 mac80211 : fix for iwconfig in ad-hoc mode
The patch checks interface status, if it is in IBSS_JOINED mode
show cell id it is associated with.

Signed-off-by: Abhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-13 16:14:53 -04:00
Linus Torvalds
51558576ea 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:
  tcp: Revert 'process defer accept as established' changes.
  ipv6: Fix duplicate initialization of rawv6_prot.destroy
  bnx2x: Updating the Maintainer
  net: Eliminate flush_scheduled_work() calls while RTNL is held.
  drivers/net/r6040.c: correct bad use of round_jiffies()
  fec_mpc52xx: MPC52xx_MESSAGES_DEFAULT: 2nd NETIF_MSG_IFDOWN => IFUP
  ipg: fix receivemode IPG_RM_RECEIVEMULTICAST{,HASH} in ipg_nic_set_multicast_list()
  netfilter: nf_conntrack: fix ctnetlink related crash in nf_nat_setup_info()
  netfilter: Make nflog quiet when no one listen in userspace.
  ipv6: Fail with appropriate error code when setting not-applicable sockopt.
  ipv6: Check IPV6_MULTICAST_LOOP option value.
  ipv6: Check the hop limit setting in ancillary data.
  ipv6 route: Fix route lifetime in netlink message.
  ipv6 mcast: Check address family of gf_group in getsockopt(MS_FILTER).
  dccp: Bug in initial acknowledgment number assignment
  dccp ccid-3: X truncated due to type conversion
  dccp ccid-3: TFRC reverse-lookup Bug-Fix
  dccp ccid-2: Bug-Fix - Ack Vectors need to be ignored on request sockets
  dccp: Fix sparse warnings
  dccp ccid-3: Bug-Fix - Zero RTT is possible
2008-06-13 07:34:47 -07:00
David S. Miller
ec0a196626 tcp: Revert 'process defer accept as established' changes.
This reverts two changesets, ec3c0982a2
("[TCP]: TCP_DEFER_ACCEPT updates - process as established") and
the follow-on bug fix 9ae27e0adb
("tcp: Fix slab corruption with ipv6 and tcp6fuzz").

This change causes several problems, first reported by Ingo Molnar
as a distcc-over-loopback regression where connections were getting
stuck.

Ilpo Järvinen first spotted the locking problems.  The new function
added by this code, tcp_defer_accept_check(), only has the
child socket locked, yet it is modifying state of the parent
listening socket.

Fixing that is non-trivial at best, because we can't simply just grab
the parent listening socket lock at this point, because it would
create an ABBA deadlock.  The normal ordering is parent listening
socket --> child socket, but this code path would require the
reverse lock ordering.

Next is a problem noticed by Vitaliy Gusev, he noted:

----------------------------------------
>--- a/net/ipv4/tcp_timer.c
>+++ b/net/ipv4/tcp_timer.c
>@@ -481,6 +481,11 @@ static void tcp_keepalive_timer (unsigned long data)
> 		goto death;
> 	}
>
>+	if (tp->defer_tcp_accept.request && sk->sk_state == TCP_ESTABLISHED) {
>+		tcp_send_active_reset(sk, GFP_ATOMIC);
>+		goto death;

Here socket sk is not attached to listening socket's request queue. tcp_done()
will not call inet_csk_destroy_sock() (and tcp_v4_destroy_sock() which should
release this sk) as socket is not DEAD. Therefore socket sk will be lost for
freeing.
----------------------------------------

Finally, Alexey Kuznetsov argues that there might not even be any
real value or advantage to these new semantics even if we fix all
of the bugs:

----------------------------------------
Hiding from accept() sockets with only out-of-order data only
is the only thing which is impossible with old approach. Is this really
so valuable? My opinion: no, this is nothing but a new loophole
to consume memory without control.
----------------------------------------

So revert this thing for now.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-12 16:34:35 -07:00
David S. Miller
f23d60de71 ipv6: Fix duplicate initialization of rawv6_prot.destroy
In changeset 22dd485022
("raw: Raw socket leak.") code was added so that we
flush pending frames on raw sockets to avoid leaks.

The ipv4 part was fine, but the ipv6 part was not
done correctly.  Unlike the ipv4 side, the ipv6 code
already has a .destroy method for rawv6_prot.

So now there were two assignments to this member, and
what the compiler does is use the last one, effectively
making the ipv6 parts of that changeset a NOP.

Fix this by removing the:

	.destroy	   = inet6_destroy_sock,

line, and adding an inet6_destroy_sock() call to the
end of raw6_destroy().

Noticed by Al Viro.

Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-06-12 16:34:34 -07:00
David S. Miller
e6e30add6b Merge branch 'net-next-2.6-misc-20080612a' of git://git.linux-ipv6.org/gitroot/yoshfuji/linux-2.6-next 2008-06-11 22:33:59 -07:00
Adrian Bunk
0b04082995 net: remove CVS keywords
This patch removes CVS keywords that weren't updated for a long time
from comments.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-11 21:00:38 -07:00
David S. Miller
a405657387 Merge branch 'net-2.6-misc-20080611a' of git://git.linux-ipv6.org/gitroot/yoshfuji/linux-2.6-fix 2008-06-11 18:11:16 -07:00
David S. Miller
5cb960a805 Merge branch 'master' of git://eden-feed.erg.abdn.ac.uk/net-2.6 2008-06-11 17:53:04 -07:00