| Commit message (Collapse) | Author | Age | Files | Lines |
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As it is, we assign the outer modes output function to the dst entry
when we create the xfrm bundle. This leads to two problems on interfamily
scenarios. We might insert ipv4 packets into ip6_fragment when called
from xfrm6_output. The system crashes if we try to fragment an ipv4
packet with ip6_fragment. This issue was introduced with git commit
ad0081e4 (ipv6: Fragment locally generated tunnel-mode IPSec6 packets
as needed). The second issue is, that we might insert ipv4 packets in
netfilter6 and vice versa on interfamily scenarios.
With this patch we assign the inner mode output function to the dst entry
when we create the xfrm bundle. So xfrm4_output/xfrm6_output from the inner
mode is used and the right fragmentation and netfilter functions are called.
We switch then to outer mode with the output_finish functions.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Commit 443457242beb (factorize sync-rcu call in
unregister_netdevice_many) mistakenly removed one test from dev_close()
Following actions trigger a BUG :
modprobe bonding
modprobe dummy
ifconfig bond0 up
ifenslave bond0 dummy0
rmmod dummy
dev_close() must not close a non IFF_UP device.
With help from Frank Blaschka and Einar EL Lueck
Reported-by: Frank Blaschka <blaschka@linux.vnet.ibm.com>
Reported-by: Einar EL Lueck <ELELUECK@de.ibm.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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ip link add link eth2 eth2.103 type vlan id 103 gvrp on loose_binding on
ip link set eth2.103 up
rmmod tg3 # driver providing eth2
BUG: unable to handle kernel NULL pointer dereference at (null)
IP: [<ffffffffa0030c9e>] garp_request_leave+0x3e/0xc0 [garp]
PGD 11d251067 PUD 11b9e0067 PMD 0
Oops: 0000 [#1] SMP
last sysfs file: /sys/devices/virtual/net/eth2.104/ifindex
CPU 0
Modules linked in: tg3(-) 8021q garp nfsd lockd auth_rpcgss sunrpc libphy sg [last unloaded: x_tables]
Pid: 11494, comm: rmmod Tainted: G W 2.6.39-rc6-00261-gfd71257-dirty #580 HP ProLiant BL460c G6
RIP: 0010:[<ffffffffa0030c9e>] [<ffffffffa0030c9e>] garp_request_leave+0x3e/0xc0 [garp]
RSP: 0018:ffff88007a19bae8 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff88011b5e2000 RCX: 0000000000000002
RDX: 0000000000000000 RSI: 0000000000000175 RDI: ffffffffa0030d5b
RBP: ffff88007a19bb18 R08: 0000000000000001 R09: ffff88011bd64a00
R10: ffff88011d34ec00 R11: 0000000000000000 R12: 0000000000000002
R13: ffff88007a19bc48 R14: ffff88007a19bb88 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff88011fc00000(0063) knlGS:00000000f77d76c0
CS: 0010 DS: 002b ES: 002b CR0: 000000008005003b
CR2: 0000000000000000 CR3: 000000011a675000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process rmmod (pid: 11494, threadinfo ffff88007a19a000, task ffff8800798595c0)
Stack:
ffff88007a19bb36 ffff88011c84b800 ffff88011b5e2000 ffff88007a19bc48
ffff88007a19bb88 0000000000000006 ffff88007a19bb38 ffffffffa003a5f6
ffff88007a19bb38 670088007a19bba8 ffff88007a19bb58 ffffffffa00397e7
Call Trace:
[<ffffffffa003a5f6>] vlan_gvrp_request_leave+0x46/0x50 [8021q]
[<ffffffffa00397e7>] vlan_dev_stop+0xb7/0xc0 [8021q]
[<ffffffff8137e427>] __dev_close_many+0x87/0xe0
[<ffffffff8137e507>] dev_close_many+0x87/0x110
[<ffffffff8137e630>] rollback_registered_many+0xa0/0x240
[<ffffffff8137e7e9>] unregister_netdevice_many+0x19/0x60
[<ffffffffa00389eb>] vlan_device_event+0x53b/0x550 [8021q]
[<ffffffff8143f448>] ? ip6mr_device_event+0xa8/0xd0
[<ffffffff81479d03>] notifier_call_chain+0x53/0x80
[<ffffffff81062539>] __raw_notifier_call_chain+0x9/0x10
[<ffffffff81062551>] raw_notifier_call_chain+0x11/0x20
[<ffffffff8137df82>] call_netdevice_notifiers+0x32/0x60
[<ffffffff8137e69f>] rollback_registered_many+0x10f/0x240
[<ffffffff8137e85f>] rollback_registered+0x2f/0x40
[<ffffffff8137e8c8>] unregister_netdevice_queue+0x58/0x90
[<ffffffff8137e9eb>] unregister_netdev+0x1b/0x30
[<ffffffffa005d73f>] tg3_remove_one+0x6f/0x10b [tg3]
We should call vlan_gvrp_request_leave() from unregister_vlan_dev(),
not from vlan_dev_stop(), because vlan_gvrp_uninit_applicant()
is called right after unregister_netdevice_queue(). In batch mode,
unregister_netdevice_queue() doesn’t immediately call vlan_dev_stop().
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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TCP Cubic keeps a metric that estimates the amount of delayed
acknowledgements to use in adjusting the window. If an abnormally
large number of packets are acknowledged at once, then the update
could wrap and reach zero. This kind of ACK could only
happen when there was a large window and huge number of
ACK's were lost.
This patch limits the value of delayed ack ratio. The choice of 32
is just a conservative value since normally it should be range of
1 to 4 packets.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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A length of zero (after subtracting two for the type and len fields) for
the DCCPO_{CHANGE,CONFIRM}_{L,R} options will cause an underflow due to
the subtraction. The subsequent code may read past the end of the
options value buffer when parsing. I'm unsure of what the consequences
of this might be, but it's probably not good.
Signed-off-by: Dan Rosenberg <drosenberg@vsecurity.com>
Cc: stable@kernel.org
Acked-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Commit 4a94445c9a5c (net: Use ip_route_input_noref() in input path)
added a bug in IP defragmentation handling, in case timeout is fired.
When a frame is defragmented, we use last skb dst field when building
final skb. Its dst is valid, since we are in rcu read section.
But if a timeout occurs, we take first queued fragment to build one ICMP
TIME EXCEEDED message. Problem is all queued skb have weak dst pointers,
since we escaped RCU critical section after their queueing. icmp_send()
might dereference a now freed (and possibly reused) part of memory.
Calling skb_dst_drop() and ip_route_input_noref() to revalidate route is
the only possible choice.
Reported-by: Denys Fedoryshchenko <denys@visp.net.lb>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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ctl_table_headers registered with register_net_sysctl_table should
have been unregistered with the equivalent unregister_net_sysctl_table
Signed-off-by: Lucian Adrian Grijincu <lucian.grijincu@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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ioctl() calls against a socket with an inappropriate ioctl operation
are incorrectly returning EINVAL rather than ENOTTY:
[ENOTTY]
Inappropriate I/O control operation.
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=33992
Signed-off-by: Lifeng Sun <lifongsun@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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fib_trie_table() is called during netns creation and
Chromium uses clone(CLONE_NEWNET) to sandbox renderer process.
Don't print anything.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This fixes the following oops discovered by Dan Aloni:
> Anyway, the following is the output of the Oops that I got on the
> Ubuntu kernel on which I first detected the problem
> (2.6.37-12-generic). The Oops that followed will be more useful, I
> guess.
>[ 5594.669852] BUG: unable to handle kernel NULL pointer dereference
> at (null)
> [ 5594.681606] IP: [<ffffffff81550b7b>] unix_dgram_recvmsg+0x1fb/0x420
> [ 5594.687576] PGD 2a05d067 PUD 2b951067 PMD 0
> [ 5594.693720] Oops: 0002 [#1] SMP
> [ 5594.699888] last sysfs file:
The bug was that unix domain sockets use a pseduo packet for
connecting and accept uses that psudo packet to get the socket.
In the buggy seqpacket case we were allowing unconnected
sockets to call recvmsg and try to receive the pseudo packet.
That is always wrong and as of commit 7361c36c5 the pseudo
packet had become enough different from a normal packet
that the kernel started oopsing.
Do for seqpacket_recv what was done for seqpacket_send in 2.5
and only allow it on connected seqpacket sockets.
Cc: stable@kernel.org
Tested-by: Dan Aloni <dan@aloni.org>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The 88e6085 has a few differences from the other devices in the port
control registers, causing unknown multicast/broadcast packets to get
dropped when using the standard port setup.
At the same time update kconfig to clarify that the mv88e6085 is now
supported.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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IPsec extended sequence numbers can be used only with the new
anti-replay window implementation. So check if the new implementation
is used if an esn state is inserted and return an error if it is not.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When we use IPsec extended sequence numbers, we may overwrite
the last scatterlist of the associated data by the scatterlist
for the skb. This patch fixes this by placing the scatterlist
for the skb right behind the last scatterlist of the associated
data. esp4 does it already like that.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
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On replay initialization, we compute the size of the replay
buffer to see if the replay window fits into the buffer.
This computation lacks a mutliplication by 8 because we need
the size in bit, not in byte. So we might return an error
even though the replay window would fit into the buffer.
This patch fixes this issue.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Since commit 62fa8a846d7d (net: Implement read-only protection and COW'ing
of metrics.) the kernel throws an oops.
[ 101.620985] BUG: unable to handle kernel NULL pointer dereference at
(null)
[ 101.621050] IP: [< (null)>] (null)
[ 101.621084] PGD 6e53c067 PUD 3dd6a067 PMD 0
[ 101.621122] Oops: 0010 [#1] SMP
[ 101.621153] last sysfs file: /sys/devices/virtual/ppp/ppp/uevent
[ 101.621192] CPU 2
[ 101.621206] Modules linked in: l2tp_ppp pppox ppp_generic slhc
l2tp_netlink l2tp_core deflate zlib_deflate twofish_x86_64
twofish_common des_generic cbc ecb sha1_generic hmac af_key
iptable_filter snd_pcm_oss snd_mixer_oss snd_seq snd_seq_device loop
snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_intel snd_hda_codec
snd_pcm snd_timer snd i2c_i801 iTCO_wdt psmouse soundcore snd_page_alloc
evdev uhci_hcd ehci_hcd thermal
[ 101.621552]
[ 101.621567] Pid: 5129, comm: openl2tpd Not tainted 2.6.39-rc4-Quad #3
Gigabyte Technology Co., Ltd. G33-DS3R/G33-DS3R
[ 101.621637] RIP: 0010:[<0000000000000000>] [< (null)>] (null)
[ 101.621684] RSP: 0018:ffff88003ddeba60 EFLAGS: 00010202
[ 101.621716] RAX: ffff88003ddb5600 RBX: ffff88003ddb5600 RCX:
0000000000000020
[ 101.621758] RDX: ffffffff81a69a00 RSI: ffffffff81b7ee61 RDI:
ffff88003ddb5600
[ 101.621800] RBP: ffff8800537cd900 R08: 0000000000000000 R09:
ffff88003ddb5600
[ 101.621840] R10: 0000000000000005 R11: 0000000000014b38 R12:
ffff88003ddb5600
[ 101.621881] R13: ffffffff81b7e480 R14: ffffffff81b7e8b8 R15:
ffff88003ddebad8
[ 101.621924] FS: 00007f06e4182700(0000) GS:ffff88007fd00000(0000)
knlGS:0000000000000000
[ 101.621971] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 101.622005] CR2: 0000000000000000 CR3: 0000000045274000 CR4:
00000000000006e0
[ 101.622046] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[ 101.622087] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
0000000000000400
[ 101.622129] Process openl2tpd (pid: 5129, threadinfo
ffff88003ddea000, task ffff88003de9a280)
[ 101.622177] Stack:
[ 101.622191] ffffffff81447efa ffff88007d3ded80 ffff88003de9a280
ffff88007d3ded80
[ 101.622245] 0000000000000001 ffff88003ddebbb8 ffffffff8148d5a7
0000000000000212
[ 101.622299] ffff88003dcea000 ffff88003dcea188 ffffffff00000001
ffffffff81b7e480
[ 101.622353] Call Trace:
[ 101.622374] [<ffffffff81447efa>] ? ipv4_blackhole_route+0x1ba/0x210
[ 101.622415] [<ffffffff8148d5a7>] ? xfrm_lookup+0x417/0x510
[ 101.622450] [<ffffffff8127672a>] ? extract_buf+0x9a/0x140
[ 101.622485] [<ffffffff8144c6a0>] ? __ip_flush_pending_frames+0x70/0x70
[ 101.622526] [<ffffffff8146fbbf>] ? udp_sendmsg+0x62f/0x810
[ 101.622562] [<ffffffff813f98a6>] ? sock_sendmsg+0x116/0x130
[ 101.622599] [<ffffffff8109df58>] ? find_get_page+0x18/0x90
[ 101.622633] [<ffffffff8109fd6a>] ? filemap_fault+0x12a/0x4b0
[ 101.622668] [<ffffffff813fb5c4>] ? move_addr_to_kernel+0x64/0x90
[ 101.622706] [<ffffffff81405d5a>] ? verify_iovec+0x7a/0xf0
[ 101.622739] [<ffffffff813fc772>] ? sys_sendmsg+0x292/0x420
[ 101.622774] [<ffffffff810b994a>] ? handle_pte_fault+0x8a/0x7c0
[ 101.622810] [<ffffffff810b76fe>] ? __pte_alloc+0xae/0x130
[ 101.622844] [<ffffffff810ba2f8>] ? handle_mm_fault+0x138/0x380
[ 101.622880] [<ffffffff81024af9>] ? do_page_fault+0x189/0x410
[ 101.622915] [<ffffffff813fbe03>] ? sys_getsockname+0xf3/0x110
[ 101.622952] [<ffffffff81450c4d>] ? ip_setsockopt+0x4d/0xa0
[ 101.622986] [<ffffffff813f9932>] ? sockfd_lookup_light+0x22/0x90
[ 101.623024] [<ffffffff814b61fb>] ? system_call_fastpath+0x16/0x1b
[ 101.623060] Code: Bad RIP value.
[ 101.623090] RIP [< (null)>] (null)
[ 101.623125] RSP <ffff88003ddeba60>
[ 101.623146] CR2: 0000000000000000
[ 101.650871] ---[ end trace ca3856a7d8e8dad4 ]---
[ 101.651011] __sk_free: optmem leakage (160 bytes) detected.
The oops happens in dst_metrics_write_ptr()
include/net/dst.h:124: return dst->ops->cow_metrics(dst, p);
dst->ops->cow_metrics is NULL and causes the oops.
Provide cow_metrics() methods, like we did in commit 214f45c91bb
(net: provide default_advmss() methods to blackhole dst_ops)
Signed-off-by: Held Bernhard <berny156@gmx.de>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
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The locking with SMPS requests means that the
debugs file should lock the mgd mutex, not the
iflist mutex. Calls to __ieee80211_request_smps()
need to hold that mutex, so add an assertion.
This has always been wrong, but for some reason
never been noticed, probably because the locking
error only happens while unassociated.
Cc: stable@kernel.org [2.6.34+]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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When retrasmitting one frame, only SAR bits in control field should
be kept.
Signed-off-by: Ruiyi Zhang <Ruiyi.zhang@atheros.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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shutdown should wait for SCO link to be properly disconnected before
detroying the socket, otherwise an application using the socket may
assume link is properly disconnected before it really happens which
can be a problem when e.g synchronizing profile switch.
Signed-off-by: Luiz Augusto von Dentz <luiz.dentz-von@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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In the teardown path the reset command is sent to the controller,
this event causes the command timer to be reactivated.
So the timer is removed in two situations, when the adapter isn't
marked as UP and when we know that some command has been sent.
Reported-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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hci_io_capa_reply_evt() holds reference for hciconnection. It's useless since
hci_io_capa_request_evt()/hci_simple_pair_complete_evt() already protects the
connection. In addition it leaves connection open after failed SSP pairing.
Signed-off-by: Ville Tervo <ville.tervo@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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This reverts commit 1e253c3b8a1aeed51eef6fc366812f219b97de65.
It breaks 802.3ad bonding inside of a bridge.
The commit was meant to support transport bridging, and specifically
virtual machines bridged to an ethernet interface connected to a
switch port wiht 802.1x enabled.
But this isn't the way to do it, it breaks too many other things.
Signed-off-by: David S. Miller <davem@davemloft.net>
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The changes introduced with git-commit a02e4b7d ("ipv6: Demark default
hoplimit as zero.") missed to remove the hoplimit initialization. As a
result, ipv6_get_mtu interprets the return value of dst_metric_raw
(-1) as 255 and answers ping6 with this hoplimit. This patche removes
the line such that ping6 is answered with the hoplimit value
configured via sysctl.
Signed-off-by: Thomas Egerer <thomas.egerer@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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At this point, skb->data points to skb_transport_header.
So, headroom check is wrong.
For some case:bridge(UFO is on) + eth device(UFO is off),
there is no enough headroom for IPv6 frag head.
But headroom check is always false.
This will bring about data be moved to there prior to skb->head,
when adding IPv6 frag header to skb.
Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
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v2: added space after 'if' according code style.
We can get here with a NULL socket argument passed from userspace,
so we need to handle it accordingly.
Thanks to Dave Jones pointing at this issue in net/can/bcm.c
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We can get here with a NULL socket argument passed from userspace,
so we need to handle it accordingly.
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-2.6
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A restoreable saving of sets requires that list:set type of sets
come last and the code part which should have taken into account
the ordering was broken. The patch fixes the listing order.
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Patrick McHardy <kaber@trash.net>
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The SET target with --del-set did not work due to using wrongly
the internal dimension of --add-set instead of --del-set.
Also, the checkentries did not release the set references when
returned an error. Bugs reported by Lennert Buytenhek.
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Patrick McHardy <kaber@trash.net>
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Enforce that the second "src/dst" parameter of the set match and SET target
must be "src", because we have access to the source MAC only in the packet.
The previous behaviour, that the type required the second parameter
but actually ignored the value was counter-intuitive and confusing.
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Patrick McHardy <kaber@trash.net>
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Scot Doyle demonstrated ip_options_compile() could be called with an skb
without an attached route, using a setup involving a bridge, netfilter,
and forged IP packets.
Let's make ip_options_compile() and ip_options_rcv_srr() a bit more
robust, instead of changing bridge/netfilter code.
With help from Hiroaki SHIMODA.
Reported-by: Scot Doyle <lkml@scotdoyle.com>
Tested-by: Scot Doyle <lkml@scotdoyle.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Hiroaki SHIMODA <shimoda.hiroaki@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This reverts commit c191a836a908d1dd6b40c503741f91b914de3348.
It causes known regressions for programs that expect to be able to use
SO_REUSEADDR to shutdown a socket, then successfully rebind another
socket to the same ID.
Programs such as haproxy and amavisd expect this to work.
This should fix kernel bugzilla 32832.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Since we can not update retran path to unconfirmed transports,
when we remove a peer, the retran path may not be update if the
other transports are all unconfirmed, and we will still using
the removed transport as the retran path. This may cause panic
if retrasnmit happen.
Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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commit fbdf501c9374966a56829ecca3a7f25d2b49a305
sctp: Do no select unconfirmed transports for retransmissions
Introduced the initial falt.
commit d598b166ced20d9b9281ea3527c0e18405ddb803
sctp: Make sure we always return valid retransmit path
Solved the problem, but forgot to change the DEBUG statement.
Thus it was still possible to dereference a NULL pointer.
Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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NETIF_F_TSO_ECN has no effect when TSO is disabled; this just means
that feature state will be accurately reported to user-space.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The feature flags NETIF_F_TSO and NETIF_F_TSO6 independently enable
TSO for IPv4 and IPv6 respectively. However, the test in
netdev_fix_features() and its predecessor functions was never updated
to check for NETIF_F_TSO6, possibly because it was originally proposed
that TSO for IPv6 would be dependent on both feature flags.
Now that these feature flags can be changed independently from
user-space and we depend on netdev_fix_features() to fix invalid
feature combinations, it's important to disable them both if
scatter-gather is disabled. Also disable NETIF_F_TSO_ECN so
user-space sees all TSO features as disabled.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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It adds -Wall (which the kernel carefully controls already) and of all
things -DDEBUG (which should be set by other means if desired, please
we have dynamic-debug these days).
Kill this noise.
Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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5b40964eadea40509d353318d2c82e8b7bf5e8a5 ("irda: Remove BKL instances
from af_irda.c") introduced a path where we have a locking unbalance.
If we pass invalid flags, we unlock a socket we never locked,
resulting in this...
=====================================
[ BUG: bad unlock balance detected! ]
-------------------------------------
trinity/20101 is trying to release lock (sk_lock-AF_IRDA) at:
[<ffffffffa057f001>] irda_sendmsg+0x207/0x21d [irda]
but there are no more locks to release!
other info that might help us debug this:
no locks held by trinity/20101.
stack backtrace:
Pid: 20101, comm: trinity Not tainted 2.6.39-rc3+ #3
Call Trace:
[<ffffffffa057f001>] ? irda_sendmsg+0x207/0x21d [irda]
[<ffffffff81085041>] print_unlock_inbalance_bug+0xc7/0xd2
[<ffffffffa057f001>] ? irda_sendmsg+0x207/0x21d [irda]
[<ffffffff81086aca>] lock_release+0xcf/0x18e
[<ffffffff813ed190>] release_sock+0x2d/0x155
[<ffffffffa057f001>] irda_sendmsg+0x207/0x21d [irda]
[<ffffffff813e9f8c>] __sock_sendmsg+0x69/0x75
[<ffffffff813ea105>] sock_sendmsg+0xa1/0xb6
[<ffffffff81100ca3>] ? might_fault+0x5c/0xac
[<ffffffff81086b7c>] ? lock_release+0x181/0x18e
[<ffffffff81100cec>] ? might_fault+0xa5/0xac
[<ffffffff81100ca3>] ? might_fault+0x5c/0xac
[<ffffffff81133b94>] ? fcheck_files+0xb9/0xf0
[<ffffffff813f387a>] ? copy_from_user+0x2f/0x31
[<ffffffff813f3b70>] ? verify_iovec+0x52/0xa6
[<ffffffff813eb4e3>] sys_sendmsg+0x23a/0x2b8
[<ffffffff81086b7c>] ? lock_release+0x181/0x18e
[<ffffffff810773c6>] ? up_read+0x28/0x2c
[<ffffffff814bec3d>] ? do_page_fault+0x360/0x3b4
[<ffffffff81087043>] ? trace_hardirqs_on_caller+0x10b/0x12f
[<ffffffff810458aa>] ? finish_task_switch+0xb2/0xe3
[<ffffffff8104583e>] ? finish_task_switch+0x46/0xe3
[<ffffffff8108364a>] ? trace_hardirqs_off_caller+0x33/0x90
[<ffffffff814bbaf9>] ? retint_swapgs+0x13/0x1b
[<ffffffff81087043>] ? trace_hardirqs_on_caller+0x10b/0x12f
[<ffffffff810a9dd3>] ? audit_syscall_entry+0x11c/0x148
[<ffffffff8125609e>] ? trace_hardirqs_on_thunk+0x3a/0x3f
[<ffffffff814c22c2>] system_call_fastpath+0x16/0x1b
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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controlling igmp_max_membership is useful even when IP_MULTICAST
is off.
Quagga(an OSPF deamon) uses multicast addresses for all interfaces
using a single socket and hits igmp_max_membership limit when
there are 20 interfaces or more.
Always export sysctl igmp_max_memberships in proc, just like
igmp_max_msf
Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
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On 64bit arches, we use 752 bytes of stack when cleanup_once() is called
from inet_getpeer().
Lets share the avl stack to save ~376 bytes.
Before patch :
# objdump -d net/ipv4/inetpeer.o | scripts/checkstack.pl
0x000006c3 unlink_from_pool [inetpeer.o]: 376
0x00000721 unlink_from_pool [inetpeer.o]: 376
0x00000cb1 inet_getpeer [inetpeer.o]: 376
0x00000e6d inet_getpeer [inetpeer.o]: 376
0x0004 inet_initpeers [inetpeer.o]: 112
# size net/ipv4/inetpeer.o
text data bss dec hex filename
5320 432 21 5773 168d net/ipv4/inetpeer.o
After patch :
objdump -d net/ipv4/inetpeer.o | scripts/checkstack.pl
0x00000c11 inet_getpeer [inetpeer.o]: 376
0x00000dcd inet_getpeer [inetpeer.o]: 376
0x00000ab9 peer_check_expire [inetpeer.o]: 328
0x00000b7f peer_check_expire [inetpeer.o]: 328
0x0004 inet_initpeers [inetpeer.o]: 112
# size net/ipv4/inetpeer.o
text data bss dec hex filename
5163 432 21 5616 15f0 net/ipv4/inetpeer.o
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Scot Doyle <lkml@scotdoyle.com>
Cc: Stephen Hemminger <shemminger@vyatta.com>
Cc: Hiroaki SHIMODA <shimoda.hiroaki@gmail.com>
Reviewed-by: Hiroaki SHIMODA <shimoda.hiroaki@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Commit 462fb2af9788a82 (bridge : Sanitize skb before it enters the IP
stack), missed one IPCB init before calling ip_options_compile()
Thanks to Scot Doyle for his tests and bug reports.
Reported-by: Scot Doyle <lkml@scotdoyle.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Hiroaki SHIMODA <shimoda.hiroaki@gmail.com>
Acked-by: Bandan Das <bandan.das@stratus.com>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Cc: Jan Lübbe <jluebbe@debian.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fixes bugzilla #32872
The LLC stack pretends to support non-linear skbs but there is a
direct use of skb_tail_pointer() in llc_fixup_skb().
Use pskb_may_pull() to see if data_size bytes remain and can be
accessed linearly in the packet, instead of direct pointer checks.
Signed-off-by: David S. Miller <davem@davemloft.net>
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In the CAIF Payload message the Packet Type indication must be set to
UNCLASSIFIED in order to allow packet prioritization in the modem's
network stack. Otherwise TCP-Ack is not prioritized in the modems
transmit queue.
Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (34 commits)
net: Add support for SMSC LAN9530, LAN9730 and LAN89530
mlx4_en: Restoring RX buffer pointer in case of failure
mlx4: Sensing link type at device initialization
ipv4: Fix "Set rt->rt_iif more sanely on output routes."
MAINTAINERS: add entry for Xen network backend
be2net: Fix suspend/resume operation
be2net: Rename some struct members for clarity
pppoe: drop PPPOX_ZOMBIEs in pppoe_flush_dev
dsa/mv88e6131: add support for mv88e6085 switch
ipv6: Enable RFS sk_rxhash tracking for ipv6 sockets (v2)
be2net: Fix a potential crash during shutdown.
bna: Fix for handling firmware heartbeat failure
can: mcp251x: Allow pass IRQ flags through platform data.
smsc911x: fix mac_lock acquision before calling smsc911x_mac_read
iwlwifi: accept EEPROM version 0x423 for iwl6000
rt2x00: fix cancelling uninitialized work
rtlwifi: Fix some warnings/bugs
p54usb: IDs for two new devices
wl12xx: fix potential buffer overflow in testmode nvs push
zd1211rw: reset rx idle timer from tasklet
...
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Commit 1018b5c01636c7c6bda31a719bda34fc631db29a ("Set rt->rt_iif more
sanely on output routes.") breaks rt_is_{output,input}_route.
This became the cause to return "IP_PKTINFO's ->ipi_ifindex == 0".
To fix it, this does:
1) Add "int rt_route_iif;" to struct rtable
2) For input routes, always set rt_route_iif to same value as rt_iif
3) For output routes, always set rt_route_iif to zero. Set rt_iif
as it is done currently.
4) Change rt_is_{output,input}_route() to test rt_route_iif
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
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Cleaning the ieee80211_rx_data.flags field here is wrong, instead the
flags should be valid accross processing the frame on different
interfaces. Fix this by removing the incorrect flags=0 assignment.
Introduced in commit 554891e63a29af35cc6bb403ef34e319518114d0
(mac80211: move packet flags into packet).
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The mv88e6085 is identical to the mv88e6095, except that all ports are
10/100 Mb/s, so use the existing setup code except for the cpu/dsa speed
selection in _setup_port().
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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properly record sk_rxhash in ipv6 sockets (v2)
Noticed while working on another project that flows to sockets which I had open
on a test systems weren't getting steered properly when I had RFS enabled.
Looking more closely I found that:
1) The affected sockets were all ipv6
2) They weren't getting steered because sk->sk_rxhash was never set from the
incomming skbs on that socket.
This was occuring because there are several points in the IPv4 tcp and udp code
which save the rxhash value when a new connection is established. Those calls
to sock_rps_save_rxhash were never added to the corresponding ipv6 code paths.
This patch adds those calls. Tested by myself to properly enable RFS
functionalty on ipv6.
Change notes:
v2:
Filtered UDP to only arm RFS on bound sockets (Eric Dumazet)
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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