Since the introduction of TSO pcount a year ago, it has been possible
for tcp_fragment() to cause packets_out to decrease. Prior to that,
tcp_retrans_try_collapse() was the only way for that to happen on the
retransmission path.
When this happens with Reno, it is possible for sasked_out to become
invalid because it is only an estimate and not tied to any particular
packet on the retransmission queue.
Therefore we need to adjust sacked_out as well as left_out in the Reno
case. The following patch does exactly that.
This bug is pretty difficult to trigger in practice though since you
need a SACKless peer with a retransmission that occurs just as the
cached MTU value expires.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Changed crypto method from requiring a struct ieee80211_device reference
to the init handler. Instead we now have a get/set flags method for
each crypto component.
Setting of TKIP countermeasures can now be done via
set_flags(IEEE80211_CRYPTO_TKIP_COUNTERMEASURES)
Signed-off-by: James Ketrenos <jketreno@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
tree de81b55e78e85997642c651ea677078d0554a14f
parent c8030da8c159f8b82712172a6748a42523aea83a
author James Ketrenos <jketreno@linux.intel.com> 1127104380 -0500
committer James Ketrenos <jketreno@linux.intel.com> 1127315225 -0500
Added handle_deauth() callback.
Enhanced crypt_{tkip,ccmp} to support varying splits of HW/SW offload.
Changed channel freq to u32 from u16.
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
tree c1b50ac5d2d1f9b727c39c6bd86a7872f25a1127
parent 1bb997a3ac7dd1941e02426d2f70bd28993a82b7
author James Ketrenos <jketreno@linux.intel.com> 1126720779 -0500
committer James Ketrenos <jketreno@linux.intel.com> 1127314674 -0500
Added subsystem version string and reporting via MODULE_VERSION and
pritnk during load.
NOTE: This is the version support split out from patch 24/29 of the
prior series.
Signed-off-by: James Ketrenos <jketreno@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Borrowing the structure of TCP/IP for this. On the receive of new connections I
was bh_lock_socking the _new_ sock, not the listening one, duh, now it survives
the ssh connections storm I've been using to test this specific bug.
Also fixes send side skb sock accounting.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
llc_fixup_skb() had a bug dropping 3 bytes packets (like UA frames). Token ring
doesn't pad these frames.
Signed-off-by: Jochen Friedrich <jochen@scram.de>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
And make it look more like the similar routines in the TCP/IP source code.
Signed-off-by: Jochen Friedrich <jochen@scram.de>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
So as to set the newly created sk_buff ->dev member with it, that way we stop
using dev_base->next, that is the wrong thing to do, as there may well be
several interfaces being used with LLC. This was not such a big problem after
all as most of the users of llc_alloc_frame were setting the correct dev, but
this way code is reduced.
This also fixes another bug in llc_station_ac_send_null_dsap_xid_c, that was
not setting the skb->dev field.
Signed-off-by: Jochen Friedrich <jochen@scram.de>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Remove old WIRELESS_EXT version compatibility
In-tree doesn't need to maintain backward compatibility.
Signed-off-by: James Ketrenos <jketreno@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
tree 0d3e41e574fcb41b9da7f0b7e1d27ec350726654
parent dbe2885fe2f454d538eaaabefc741ded1026f476
author James Ketrenos <jketreno@linux.intel.com> 1126720499 -0500
committer James Ketrenos <jketreno@linux.intel.com> 1127314531 -0500
Updated copyright dates.
NOTE: This is a split out of just the copyright updates from patch
24/29 in the prior series.
Signed-off-by: James Ketrenos <jketreno@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
tree 5c7559a1216ae1121487f6aed94a6017490729b3
parent c1ff4c22e5622c8987bf96c09158c4924cde98c2
author Hong Liu <hong.liu@intel.com> 1125482767 +0800
committer James Ketrenos <jketreno@linux.intel.com> 1127314427 -0500
Mixed PTK/GTK CCMP/TKIP support.
Signed-off-by: Hong Liu <hong.liu@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
tree 385b391fc0d7c124cd0547fdb6183e9a0c333391
parent 97d7a47f76e72bedde7f402785559ed4c7a8e8e8
author James Ketrenos <jketreno@linux.intel.com> 1124447590 -0500
committer James Ketrenos <jketreno@linux.intel.com> 1127313735 -0500
Added ieee80211_geo to provide helper functions to drivers for
implementing supported channel maps.
Signed-off-by: James Ketrenos <jketreno@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
tree a3ad796273e98036eb0e9fc063225070fa24508a
parent 1b9c0aeb377abf8e4a43a86cff42382f74ca0259
author Mohamed Abbas <mabbas@linux.intel.com> 1124447069 -0500
committer James Ketrenos <jketreno@linux.intel.com> 1127313435 -0500
Add QoS (WME) support to the ieee80211 subsystem.
NOTE: This requires drivers that use the ieee80211 hard_start_xmit
(ipw2100 and ipw2200) to add the priority parameter to their callback.
Signed-off-by: James Ketrenos <jketreno@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
tree ba6509c7cd1dd4244a2f285f2da5d632e7ffbb25
parent 7b5f9f2ddcabdaea214527a895e6e8445cafdd80
author James Ketrenos <jketreno@linux.intel.com> 1124447000 -0500
committer James Ketrenos <jketreno@linux.intel.com> 1127313383 -0500
Per the conversations with folks at OLS, the QoS layer in 802.11
drivers can now result in NETDEV_TX_BUSY being returned when the queue
a packet is targetted for is full.
To implement this, ieee80211_xmit will now call the driver's
is_queue_full to determine if the current priority queue is full. If
so, NETDEV_TX_BUSY is returned to the kernel and no processing is done
on the frame.
Signed-off-by: James Ketrenos <jketreno@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
tree 8428e9f510e6ad6c77baec89cb57374842abf733
parent d78bfd3ddae9c422dd350159110f9c4d7cfc50de
author Liu Hong <hong.liu@intel.com> 1124446520 -0500
committer James Ketrenos <jketreno@linux.intel.com> 1127313183 -0500
Fix TKIP, repeated fragmentation problem, and payload_size reporting
1. TKIP encryption
Originally, TKIP encryption issues msdu + mpdu encryption on every
fragment. Change the behavior to msdu encryption on the whole
packet, then mpdu encryption on every fragment.
2. Avoid repeated fragmentation when !host_encrypt.
We only need do fragmentation when using host encryption. Otherwise
we only need pass the whole packet to driver, letting driver do the
fragmentation.
3. change the txb->payload_size to correct value
FW will use this value to determine whether to do fragmentation. If
we pass the wrong value, fw may cut on the wrong bound which will
make decryption fail when we do host encryption.
NOTE: This requires changing drivers (hostap) that have
extra_prefix_len used within them (structure member name change).
Signed-off-by: Hong Liu <liu.hong@intel.com>
Signed-off-by: James Ketrenos <jketreno@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
tree 40adc78b623ae70d56074934ec6334eb4f0ae6a5
parent db43d847bcebaa3df6414e26d0008eb21690e8cf
author James Ketrenos <jketreno@linux.intel.com> 1124445938 -0500
committer James Ketrenos <jketreno@linux.intel.com> 1127313102 -0500
Added ieee80211_tx_frame to convert generic 802.11 data frames into
txbs for transmission.
Added several purpose specific callbacks (handle_assoc, handle_auth,
etc.) which the driver can register with for being notified on
reception of variouf frame elements.
Signed-off-by: James Ketrenos <jketreno@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
tree b45c9c1017fd23216bfbe71e441aed9aa297fc84
parent 04aacdd71e904656a304d923bdcf57ad3bd2b254
author Ivo van Doorn <IvDoorn@gmail.com> 1124445405 -0500
committer James Ketrenos <jketreno@linux.intel.com> 1127313029 -0500
This patch adds support for the creation of RTS packets when the
config flag CFG_IEEE80211_RTS has been set.
Signed-Off-By: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: James Ketrenos <jketreno@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
tree e9c18b2c8e5ad446a4d213243c2dcf9fd1652a7b
parent 4e97ad6ae7084a4f741e94e76c41c68bc7c5a76a
author James Ketrenos <jketreno@linux.intel.com> 1124444315 -0500
committer James Ketrenos <jketreno@linux.intel.com> 1127312922 -0500
Renamed ieee80211_hdr to ieee80211_hdr_3addr and modified ieee80211_hdr
to just contain the frame_ctrl and duration_id.
Changed uses of ieee80211_hdr to ieee80211_hdr_4addr or
ieee80211_hdr_3addr based on what was expected for that portion of code.
NOTE: This requires changes to ipw2100, ipw2200, hostap, and atmel
drivers.
Signed-off-by: James Ketrenos <jketreno@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
tree 1536f39c18756698d033da72c49300a561be1289
parent 07172d7c9f10ee3d05d6f6489ba6d6ee2628da06
author Liu Hong <hong.liu@intel.com> 1124436225 -0500
committer James Ketrenos <jketreno@linux.intel.com> 1127312664 -0500
Added WE-18 support to default wireless extension handler in ieee80211
subsystem.
Updated patch since last send to account for ieee80211_device parameter
being added to the crypto init method.
Signed-off-by: James Ketrenos <jketreno@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
tree 898fedef6ca1b5b58b8bdf7e6d8894a78bbde4cd
parent 8720fff53090ae428d2159332b6f4b2749dea10f
author Zhu Yi <jketreno@io.(none)> 1124435746 -0500
committer James Ketrenos <jketreno@linux.intel.com> 1127312509 -0500
Allow drivers to fix an issue when using wpa_supplicant with WEP.
The problem is introduced by the hwcrypto patch. We changed indicator of
the encryption request from the upper layer (i.e. wpa_supplicant):
In the original host based crypto the driver could use: crypt &&
crypt->ops.
In the new hardware based crypto, the driver should use the flags
specified in ieee->sec.encrypt.
Signed-off-by: James Ketrenos <jketreno@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
tree b69e983266840983183a00f5ac02c66d5270ca47
parent cdd6372949b76694622ed74fe36e1dd17a92eb71
author Zhu Yi <jketreno@io.(none)> 1124435425 -0500
committer James Ketrenos <jketreno@linux.intel.com> 1127312421 -0500
Fix kernel Oops when module unload.
Export a new function ieee80211_crypt_quiescing from ieee80211. Device
drivers call it to make the host crypto stack enter the quiescence
state, which means "process existing requests, but don't accept new
ones". This is usually called during a driver's host crypto data
structure free (module unload) path.
Signed-off-by: James Ketrenos <jketreno@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
tree b9cdd7058b787807655ea6f125e2adbf8d26c863
parent 85d9b2bddfcf3ed2eb4d061947c25c6a832891ab
author Zhu Yi <jketreno@io.(none)> 1124435212 -0500
committer James Ketrenos <jketreno@linux.intel.com> 1127312152 -0500
Fix time calculation, switching to use jiffies_to_msecs.
Signed-off-by: James Ketrenos <jketreno@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
tree 5322d496af90d03ffbec27292dc1a6268a746ede
parent 6c9364386ccb786e4a84427ab3ad712f0b7b8904
author James Ketrenos <jketreno@linux.intel.com> 1124432367 -0500
committer James Ketrenos <jketreno@linux.intel.com> 1127311810 -0500
Hardware crypto and fragmentation offload support added (Zhu Yi)
Signed-off-by: James Ketrenos <jketreno@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
tree 367069f24fc38b4aa910e86ff40094d2078d8aa7
parent a33a198201
author James Ketrenos <jketreno@linux.intel.com> 1124430800 -0500
committer James Ketrenos <jketreno@linux.intel.com> 1127310571 -0500
Fixed a kernel oops on module unload by adding spin lock protection to
ieee80211's crypt handlers (thanks to Zhu Yi)
Modified scan result logic to report WPA and RSN IEs if set (vs.being
based on wpa_enabled)
Added ieee80211_device as the first parameter to the crypt init()
method. TKIP modified to use that structure for determining whether to
countermeasures are active.
Signed-off-by: James Ketrenos <jketreno@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Patch from Joel Sing to fix the default congestion control algorithm
for incoming connections. If a new congestion control handler is added
(via module), it should become the default for new
connections. Instead, the incoming connections use reno. The cause is
incorrect initialisation causes the tcp_init_congestion_control()
function to return after the initial if test fails.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Acked-by: Ian McDonald <imcdnzl@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Cleanup the printk's in fib_trie:
* Convert a couple of places in the dump code to BUG_ON
* Put log level's on each message
The version message really needed the message since it leaks out
on the pretty Fedora bootup.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Acked-by: Robert Olsson <Robert.Olsson@data.slu.se>,
Signed-off-by: David S. Miller <davem@davemloft.net>
The convention is that longer addresses will simply extend
the hardeware address byte arrays at the end of sockaddr_ll and
packet_mreq.
In making this change a small information leak was also closed.
The code only initializes the hardware address bytes that are
used, but all of struct sockaddr_ll was copied to userspace.
Now we just copy sockaddr_ll to the last byte of the hardware
address used.
For error checking larger structures than our internal
maximums continue to be allowed but an error is signaled if we can
not fit the hardware address into our internal structure.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vlad Drukker