07 Aug, 2011
1 commit
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Computers have become a lot faster since we compromised on the
partial MD4 hash which we use currently for performance reasons.MD5 is a much safer choice, and is inline with both RFC1948 and
other ISS generators (OpenBSD, Solaris, etc.)Furthermore, only having 24-bits of the sequence number be truly
unpredictable is a very serious limitation. So the periodic
regeneration and 8-bit counter have been removed. We compute and
use a full 32-bit sequence number.For ipv6, DCCP was found to use a 32-bit truncated initial sequence
number (it needs 43-bits) and that is fixed here as well.Reported-by: Dan Kaminsky
Tested-by: Willy Tarreau
Signed-off-by: David S. Miller
03 Aug, 2011
1 commit
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Gergely Kalman reported crashes in check_peer_redir().
It appears commit f39925dbde778 (ipv4: Cache learned redirect
information in inetpeer.) added a race, leading to possible NULL ptr
dereference.Since we can now change dst neighbour, we should make sure a reader can
safely use a neighbour.Add RCU protection to dst neighbour, and make sure check_peer_redir()
can be called safely by different cpus in parallel.As neighbours are already freed after one RCU grace period, this patch
should not add typical RCU penalty (cache cold effects)Many thanks to Gergely for providing a pretty report pointing to the
bug.Reported-by: Gergely Kalman
Signed-off-by: Eric Dumazet
Signed-off-by: David S. Miller
02 Aug, 2011
1 commit
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My @hp.com will no longer be valid starting August 5, 2011 so an update is
necessary. My new email address is employer independent so we don't have
to worry about doing this again any time soon.Signed-off-by: Paul Moore
Signed-off-by: Paul Moore
Signed-off-by: David S. Miller
27 Jul, 2011
1 commit
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This allows us to move duplicated code in
(atomic_inc_not_zero() for now) toSigned-off-by: Arun Sharma
Reviewed-by: Eric Dumazet
Cc: Ingo Molnar
Cc: David Miller
Cc: Eric Dumazet
Acked-by: Mike Frysinger
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
26 Jul, 2011
1 commit
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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (43 commits)
fs: Merge split strings
treewide: fix potentially dangerous trailing ';' in #defined values/expressions
uwb: Fix misspelling of neighbourhood in comment
net, netfilter: Remove redundant goto in ebt_ulog_packet
trivial: don't touch files that are removed in the staging tree
lib/vsprintf: replace link to Draft by final RFC number
doc: Kconfig: `to be' -> `be'
doc: Kconfig: Typo: square -> squared
doc: Konfig: Documentation/power/{pm => apm-acpi}.txt
drivers/net: static should be at beginning of declaration
drivers/media: static should be at beginning of declaration
drivers/i2c: static should be at beginning of declaration
XTENSA: static should be at beginning of declaration
SH: static should be at beginning of declaration
MIPS: static should be at beginning of declaration
ARM: static should be at beginning of declaration
rcu: treewide: Do not use rcu_read_lock_held when calling rcu_dereference_check
Update my e-mail address
PCIe ASPM: forcedly -> forcibly
gma500: push through device driver tree
...Fix up trivial conflicts:
- arch/arm/mach-ep93xx/dma-m2p.c (deleted)
- drivers/gpio/gpio-ep93xx.c (renamed and context nearby)
- drivers/net/r8169.c (just context changes)
25 Jul, 2011
1 commit
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (145 commits)
bnx2x: use pci_pcie_cap()
bnx2x: fix bnx2x_stop_on_error flow in bnx2x_sp_rtnl_task
bnx2x: enable internal target-read for 57712 and up only
bnx2x: count statistic ramrods on EQ to prevent MC assert
bnx2x: fix loopback for non 10G link
bnx2x: dcb - send all unmapped priorities to same COS as L2
iwlwifi: Fix build with CONFIG_PM disabled.
gre: fix improper error handling
ipv4: use RT_TOS after some rt_tos conversions
via-velocity: remove duplicated #include
qlge: remove duplicated #include
igb: remove duplicated #include
can: c_can: remove duplicated #include
bnad: remove duplicated #include
net: allow netif_carrier to be called safely from IRQ
bna: Header File Consolidation
bna: HW Error Counter Fix
bna: Add HW Semaphore Unlock Logic
bna: IOC Event Name Change
bna: Mboxq Flush When IOC Disabled
...
23 Jul, 2011
6 commits
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unlinkat - Remove a directory entry
size[4] Tunlinkat tag[2] dirfid[4] name[s] flag[4]
size[4] Runlinkat tag[2]older Tremove have the below request format
size[4] Tremove tag[2] fid[4]
The remove message is used to remove a directory entry either file or directory
The remove opreation is actually a directory opertation and should ideally have
dirfid, if not we cannot represent the fid on server with anything other than
name. We will have to derive the directory name from fid in the Tremove request.NOTE: The operation doesn't clunk the unlink fid.
Signed-off-by: Aneesh Kumar K.V
Signed-off-by: Eric Van Hensbergen -
renameat - change name of file or directory
size[4] Trenameat tag[2] olddirfid[4] oldname[s] newdirfid[4] newname[s]
size[4] Rrenameat tag[2]older Trename have the below request format
size[4] Trename tag[2] fid[4] newdirfid[4] name[s]
The rename message is used to change the name of a file, possibly moving it
to a new directory. The rename opreation is actually a directory opertation
and should ideally have olddirfid, if not we cannot represent the fid on server
with anything other than name. We will have to derive the old directory name
from fid in the Trename request.Signed-off-by: Aneesh Kumar K.V
Signed-off-by: Eric Van Hensbergen -
Signed-off-by: Prem Karat
Signed-off-by: Aneesh Kumar K.V
Signed-off-by: Eric Van Hensbergen -
Signed-off-by: Aneesh Kumar K.V
Signed-off-by: Eric Van Hensbergen -
Switch to generic kernel hexdump library and cleanup macros to
be more consistent with the way we do normal debug prints.Signed-off-by: Eric Van Hensbergen
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…wireless-next-2.6 into for-davem
22 Jul, 2011
1 commit
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IPv6 fragment identification generation is way beyond what we use for
IPv4 : It uses a single generator. Its not scalable and allows DOS
attacks.Now inetpeer is IPv6 aware, we can use it to provide a more secure and
scalable frag ident generator (per destination, instead of system wide)This patch :
1) defines a new secure_ipv6_id() helper
2) extends inet_getid() to provide 32bit results
3) extends ipv6_select_ident() with a new dest parameterReported-by: Fernando Gont
Signed-off-by: Eric Dumazet
Signed-off-by: David S. Miller
21 Jul, 2011
1 commit
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In P2P client mode, the GO (AP) to connect to might
have periods of time where it is not available due
to powersave. To allow the driver to sync with it
and send frames to the GO only when it is available
add a new callback tx_sync (and the corresponding
finish_tx_sync). These callbacks can sleep unlike
the actual TX.Signed-off-by: Johannes Berg
Signed-off-by: John W. Linville
20 Jul, 2011
1 commit
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Some P2P scans are not allowed to advertise
11b rates, but that is a rather special case
so instead of having that, allow userspace
to request the rate sets (per band) that are
advertised in scan probe request frames.Since it's needed in two places now, factor
out some common code parsing a rate array.Signed-off-by: Johannes Berg
Signed-off-by: John W. Linville
18 Jul, 2011
4 commits
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In the future dst entries will be neigh-less. In that environment we
need to have an easy transition point for current users of
dst->neighbour outside of the packet output fast path.Signed-off-by: David S. Miller
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dst_{get,set}_neighbour()
Signed-off-by: David S. Miller
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It just makes it harder to see 1) what the code is doing
and 2) grep for all users of dst{->,.}neighbourSigned-off-by: David S. Miller
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This will get us closer to being able to do "neigh stuff"
completely independent of the underlying dst_entry for
protocols (ipv4/ipv6) that wish to do so.We will also be able to make dst entries neigh-less.
Signed-off-by: David S. Miller
17 Jul, 2011
4 commits
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It is always dev_queue_xmit().
Signed-off-by: David S. Miller
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It's just taking on one of two possible values, either
neigh_ops->output or dev_queue_xmit(). And this is purely depending
upon whether nud_state has NUD_CONNECTED set or not.Signed-off-by: David S. Miller
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It's always dev_queue_xmit().
Signed-off-by: David S. Miller
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Signed-off-by: David S. Miller
16 Jul, 2011
5 commits
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ieee80211_iter_keys() currently returns keys in
the backward order they were installed in, which
is a bit confusing. Add them to the tail of the
key list to make sure iterations go in the same
order that keys were originally installed in.Signed-off-by: Johannes Berg
Signed-off-by: John W. Linville -
When the driver wants to pre-program the TKIP
RX phase 1 key, it needs to be able to obtain
it for the peer's TA. Add API to allow it to
generate it.The generation uses a dummy on-stack context
since it doesn't know the RX queue.Signed-off-by: Johannes Berg
Signed-off-by: John W. Linville -
Some chips may support different lengths of user-supplied IEs with a
single scheduled scan command than with a single normal scan command.To support this, this patch creates a separate hardware description
element that describes the maximum size of user-supplied information
element data supported in scheduled scans.Signed-off-by: Luciano Coelho
Signed-off-by: John W. Linville -
Some chips can scan more SSIDs with a single scheduled scan command
than with a single normal scan command (eg. wl12xx chips).To support this, this patch creates a separate hardware description
element that describes the amount of SSIDs supported in scheduled
scans.Signed-off-by: Luciano Coelho
Signed-off-by: John W. Linville -
Since we now have the necessary API in place to support
GTK rekeying, applications will need to know whether it
is supported by a device. Add a pseudo-trigger that is
used only to advertise that capability. Also, add some
new triggers that match what iwlagn devices can do.Signed-off-by: Johannes Berg
Signed-off-by: John W. Linville
15 Jul, 2011
1 commit
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…wireless-next-2.6 into for-davem
Conflicts:
net/bluetooth/l2cap_core.c
14 Jul, 2011
3 commits
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Conflicts:
net/bluetooth/l2cap_core.c -
Now that there is a one-to-one correspondance between neighbour
and hh_cache entries, we no longer need:1) dynamic allocation
2) attachment to dst->hh
3) refcountingInitialization of the hh_cache entry is indicated by hh_len
being non-zero, and such initialization is always done with
the neighbour's lock held as a writer.Signed-off-by: David S. Miller
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In WoWLAN, devices may use crypto keys for TX/RX
and could also implement GTK rekeying. If the
driver isn't able to retrieve replay counters and
similar information from the device upon resume,
or if the device isn't responsive due to platform
issues, it isn't safe to keep the connection up
as GTK rekey messages from during the sleep time
could be replayed against it.The only protection against that is disconnecting
from the AP. Modifying mac80211 to do that while
it is resuming would be very complex and invasive
in the case that the driver requires a reconfig,
so do it after it has resumed completely. In that
case, however, packets might be replayed since it
can then only happen after TX/RX are up again, so
mark keys for interfaces that need to disconnect
as "tainted" and drop all packets that are sent
or received with those keys.Signed-off-by: Johannes Berg
Signed-off-by: John W. Linville
13 Jul, 2011
1 commit
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Get rid of all of the useless and costly indirection
by doing the neigh hash table lookup directly inside
of the neighbour binding.Rename from arp_bind_neighbour to rt_bind_neighbour.
Use new helpers {__,}ipv4_neigh_lookup()
In rt_bind_neighbour() get rid of useless tests which
are never true in the context this function is called,
namely dev is never NULL and the dst->neighbour is
always NULL.Signed-off-by: David S. Miller
12 Jul, 2011
3 commits
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Looks like I forgot to document the "gfp" parameter
to cfg80211_gtk_rekey_notify, add it.Signed-off-by: Johannes Berg
Signed-off-by: John W. Linville -
mac80211 maintains a running average of the RSSI when a STA
is associated to an AP. Report threshold events to any driver
that has registered callbacks for getting RSSI measurements.Implement callbacks in mac80211 so that driver can set thresholds.
Add callbacks in mac80211 which is invoked when an RSSI threshold
event occurs.mac80211: add tracing to rssi_reports api and remove extraneous fn argument
mac80211: scale up rssi thresholds from driver by 16 before storingSigned-off-by: Meenakshi Venkataraman
Signed-off-by: Wey-Yi Guy
Signed-off-by: John W. Linville -
Conflicts:
net/bluetooth/l2cap_core.c
11 Jul, 2011
4 commits
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Sync with Linus' tree to be able to apply pending patches that
are based on newer code already present upstream. -
We need to make sure the multiplier is odd.
Signed-off-by: David S. Miller
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And mask the hash function result by simply shifting
down the "->hash_shift" most significant bits.Currently which bits we use is arbitrary since jhash
produces entropy evenly across the whole hash function
result.But soon we'll be using universal hashing functions,
and in those cases more entropy exists in the higher
bits than the lower bits, because they use multiplies.Signed-off-by: David S. Miller
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There can 3 reasons for the "command reject" reply produced
by the stack. Each such reply should be accompanied by the
relevand data ( as defined in spec. ). Currently there is one
instance of "command reject" reply with reason "invalid cid"
wich is fixed. Also, added clean-up definitions related to the
"command reject" replies.Signed-off-by: Ilia Kolomisnky
Signed-off-by: Gustavo F. Padovan
