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98723 commits

Author SHA1 Message Date
David S. Miller
30902dc3cb ax25: Fix std timer socket destroy handling.
Tihomir Heidelberg - 9a4gl, reports:

--------------------
I would like to direct you attention to one problem existing in ax.25
kernel since 2.4. If listening socket is closed and its SKB queue is
released but those sockets get weird. Those "unAccepted()" sockets
should be destroyed in ax25_std_heartbeat_expiry, but it will not
happen. And there is also a note about that in ax25_std_timer.c:
/* Magic here: If we listen() and a new link dies before it
is accepted() it isn't 'dead' so doesn't get removed. */

This issue cause ax25d to stop accepting new connections and I had to
restarted ax25d approximately each day and my services were unavailable.
Also netstat -n -l shows invalid source and device for those listening
sockets. It is strange why ax25d's listening socket get weird because of
this issue, but definitely when I solved this bug I do not have problems
with ax25d anymore and my ax25d can run for months without problems.
--------------------

Actually as far as I can see, this problem is even in releases
as far back as 2.2.x as well.

It seems senseless to special case this test on TCP_LISTEN state.
Anything still stuck in state 0 has no external references and
we can just simply kill it off directly.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-17 21:26:37 -07:00
Wang Chen
9d45abe1c2 netdevice: change net_device->promiscuity/allmulti to unsigned int
The comments of dev_set_allmulti/promiscuity() is that "While the count in
the device remains above zero...". So negative count is useless.
Fix the type of the counter from "int" to "unsigned int".

Signed-off-by: Wang Chen <wangchen@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-17 21:12:48 -07:00
Eric Dumazet
cb61cb9b8b udp: sk_drops handling
In commits 33c732c361 ([IPV4]: Add raw
drops counter) and a92aa318b4 ([IPV6]:
Add raw drops counter), Wang Chen added raw drops counter for
/proc/net/raw & /proc/net/raw6

This patch adds this capability to UDP sockets too (/proc/net/udp &
/proc/net/udp6).

This means that 'RcvbufErrors' errors found in /proc/net/snmp can be also
be examined for each udp socket.

# grep Udp: /proc/net/snmp
Udp: InDatagrams NoPorts InErrors OutDatagrams RcvbufErrors SndbufErrors
Udp: 23971006 75 899420 16390693 146348 0

# cat /proc/net/udp
 sl  local_address rem_address   st tx_queue rx_queue tr tm->when retrnsmt  ---
uid  timeout inode ref pointer drops
 75: 00000000:02CB 00000000:0000 07 00000000:00000000 00:00000000 00000000  ---
  0        0 2358 2 ffff81082a538c80 0
111: 00000000:006F 00000000:0000 07 00000000:00000000 00:00000000 00000000  ---
  0        0 2286 2 ffff81042dd35c80 146348

In this example, only port 111 (0x006F) was flooded by messages that
user program could not read fast enough. 146348 messages were lost.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-17 21:04:56 -07:00
Bernard Pidoux
fe2c802ab6 rose: improving AX25 routing frames via ROSE network
ROSE network is organized through nodes connected via hamradio or Internet.
AX25 packet radio frames sent to a remote ROSE address destination are routed
through these nodes.

Without the present patch, automatic routing mechanism did not work optimally
due to an improper parameter checking.

rose_get_neigh() function is called either by rose_connect() or by
rose_route_frame().

In the case of a call from rose_connect(), f0 timer is checked to find if a connection
is already pending. In that case it returns the address of the neighbour, or returns a NULL otherwise.

When called by rose_route_frame() the purpose was to route a packet AX25 frame
through an adjacent node given a destination rose address.
However, in that case, t0 timer checked does not indicate if the adjacent node
is actually connected even if the timer is not null. Thus, for each frame sent, the
function often tried to start a new connexion even if the adjacent node was already connected.

The patch adds a "new" parameter that is true when the function is called by
rose route_frame().
This instructs rose_get_neigh() to check node parameter "restarted". 
If restarted is true it means that the route to the destination address is opened via a neighbour
node already connected.
If "restarted" is false the function returns a NULL.
In that case the calling function will initiate a new connection as before.

This results in a fast routing of frames, from nodes to nodes, until
destination is reached, as originaly specified by ROSE protocole.

Signed-off-by: Bernard Pidoux <f6bvp@amsat.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-17 17:08:32 -07:00
Chas Williams
e92481f953 atm: [fore200e] convert to use request_firmware()
Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-17 16:23:11 -07:00
Chas Williams
7255ca3f3c atm: [he] remove #ifdef clutter
Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-17 16:21:44 -07:00
Alan Cox
97928f7021 atm: [iphase] 64-bit cleanup
This fixes the most obvious 64-bit problems, but it is still very very
broken in other aspects.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-17 16:21:18 -07:00
Mitchell Blank Jr
61c33e0129 atm: use const where reasonable
From: Mitchell Blank Jr <mitch@sfgoth.com>

Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-17 16:20:06 -07:00
Chas Williams
df3bc8bd8f atm: [suni] add support for setting loopback and framing modes
Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-17 16:19:24 -07:00
Jorge Boncompte [DTI2]
2be63b878f atm: [iphase] move struct suni_priv to suni.h
Signed-off-by: Jorge Boncompte [DTI2] <jorge@dti2.net>
Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-17 16:18:49 -07:00
Randy Dunlap
f586287e0f bridge: fix IPV6=n build
Fix bridge netfilter code so that it uses CONFIG_IPV6 as needed:

net/built-in.o: In function `ebt_filter_ip6':
ebt_ip6.c:(.text+0x87c37): undefined reference to `ipv6_skip_exthdr'
net/built-in.o: In function `ebt_log_packet':
ebt_log.c:(.text+0x88dee): undefined reference to `ipv6_skip_exthdr'
make[1]: *** [.tmp_vmlinux1] Error 1

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-17 16:16:13 -07:00
Stephen Hemminger
92c0574f11 bridge: make bridge address settings sticky
Normally, the bridge just chooses the smallest mac address as the
bridge id and mac address of bridge device. But if the administrator
has explictly set the interface address then don't change it.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-17 16:10:06 -07:00
Stephen Hemminger
43aa192011 bridge: handle process all link-local frames
Any frame addressed to link-local addresses should be processed by local
receive path. The earlier code would process them only if STP was enabled.
Since there are other frames like LACP for bonding, we should always
process them.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-17 16:09:45 -07:00
Pavel Emelyanov
3d00fb9eb1 sctp: fix error path in sctp_proc_init
After the sctp_remaddr_proc_init failed, the proper rollback is
not the sctp_remaddr_proc_exit, but the sctp_assocs_proc_exit.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Acked-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-17 15:54:14 -07:00
David S. Miller
48c5732f4a netrom: Kill spurious NULL'ing of sk->sk_socket.
In nr_release(), one code path calls sock_orphan() which
will NULL out sk->sk_socket already.

In the other case, handling states other than NR_STATE_{0,1,2,3},
seems to not be possible other than due to bugs.  Even for an
uninitialized nr->state value, that would be zero or NR_STATE_0.
It might be wise to stick a WARN_ON() here.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-17 03:19:58 -07:00
David S. Miller
c751e4f8b3 x25: Use sock_orphan() instead of open-coded (and buggy) variant.
It doesn't grab the sk_callback_lock, it doesn't NULL out
the sk->sk_sleep waitqueue pointer, etc.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-17 03:05:13 -07:00
David S. Miller
0efffaf9d5 econet: Use sock_orphan() instead of open-coded (and buggy) variant.
It doesn't grab the sk_callback_lock, it doesn't NULL out
the sk->sk_sleep waitqueue pointer, etc.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-17 03:01:47 -07:00
David S. Miller
b61d38e055 x25: Use sock_graft() and remove bogus sk_socket and sk_sleep init.
This is the x25 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 02:44:35 -07:00
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
338db08551 net: Kill SOCK_SLEEP_PRE and SOCK_SLEEP_POST, no users.
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-17 01:09:00 -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
8ce9c6ede1 sctp: Kill SCTP_SOCK_SLEEP_{PRE,POST}, unused.
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-17 00:40:36 -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
Chas Williams
65c3e4715b atm: [he] send idle cells instead of unassigned when in SDH mode
Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-16 17:21:27 -07:00
Robert T. Johnson
28e84ab3ab atm: [he] limit queries to the device's register space
From: "Robert T. Johnson" <rtjohnso@eecs.berkeley.edu>
Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
2008-06-16 17:20:52 -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
Chas Williams
059e3779b5 atm: [he] only support suni driver on multimode interfaces
Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-16 17:17:31 -07:00
Jorge Boncompte [DTI2]
d6c1d704ab atm: [iphase] doesn't call phy->start due to a bogus #ifndef
This causes the suni driver to oops if you try to use sonetdiag to get
the statistics. Also add the corresponding phy->stop call to fix another
oops if you try to remove the module.

Signed-off-by: Jorge Boncompte [DTI2] <jorge@dti2.net>
Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-16 17:16:35 -07:00
Jorge Boncompte [DTI2]
c0ed0b60f2 atm: [iphase] set drvdata before enabling interrupts
Signed-off-by: Jorge Boncompte [DTI2] <jorge@dti2.net>
Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-16 17:16:04 -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
0b4419162a netns: introduce the net_hash_mix "salt" for hashes
There are many possible ways to add this "salt", thus I made this
patch to be the last in the series to change it if required.

Currently I propose to use the struct net pointer itself as this 
salt, but since this pointer is most often cache-line aligned, shift 
this right to eliminate the bits, that are most often zeroed.

After this, simply add this mix to prepared hashfn-s.

For CONFIG_NET_NS=n case this salt is 0 and no changes in hashfn
appear.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-16 17:14:11 -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