- 25 7月, 2009 1 次提交
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由 Johannes Berg 提交于
1) there's a spin_lock() that needs to be spin_lock_bh() 2) action frames of size 24 might cause an out-of-bounds memory access (for the 25th byte only, so no big deal) Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 11 7月, 2009 1 次提交
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由 Johannes Berg 提交于
Within mac80211, we often need to copy the rx status into skb->cb. This is wasteful, as drivers could be building it in there to start with. This patch changes the API so that drivers are expected to pass the RX status in skb->cb, now accessible as IEEE80211_SKB_RXCB(skb). It also updates all drivers to pass the rx status in there, but only by making them memcpy() it into place before the call to the receive function (ieee80211_rx(_irqsafe)). Each driver can now be optimised on its own schedule. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 27 6月, 2009 1 次提交
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由 Jesper Dangaard Brouer 提交于
The mac80211 module uses rcu_call() thus it should use rcu_barrier() on module unload. The rcu_barrier() is placed in mech.c ieee80211_stop_mesh() which is invoked from ieee80211_stop() in case vif.type == NL80211_IFTYPE_MESH_POINT. Acked-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJesper Dangaard Brouer <hawk@comx.dk> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 21 5月, 2009 1 次提交
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由 Johannes Berg 提交于
We forgot to cancel all timers in mac80211 when suspending. In particular we forgot to deal with some things that can cause hardware reconfiguration -- while it is down. While at it we go ahead and add a warning in ieee80211_sta_work() if its run while the suspend->resume cycle is in effect. This should not happen and if it does it would indicate there is a bug lurking in either mac80211 or mac80211 drivers. With this now wpa_supplicant doesn't blink when I go to suspend and resume where as before there where issues with some timers running during the suspend->resume cycle. This caused a lot of incorrect assumptions and would at times bring back the device in an incoherent, but mostly recoverable, state. Signed-off-by: NLuis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 07 5月, 2009 1 次提交
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由 Johannes Berg 提交于
The config_interface method is a little strange, it contains the BSSID and beacon updates, while bss_info_changed contains most other BSS information for each interface. This patch removes config_interface and rolls all the information it previously passed to drivers into bss_info_changed. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 14 2月, 2009 1 次提交
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由 Johannes Berg 提交于
Remove all the code from mac80211 to keep track of BSSes and use the cfg80211-provided code completely. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 30 1月, 2009 2 次提交
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由 Johannes Berg 提交于
This patch adds a flag to notify drivers to start and stop beaconing when needed, for example, during a scan run. Based on Sujith's first patch to do the same, but now disables beaconing for all virtual interfaces while scanning, has a separate change flag and tracks user-space requests. Signed-off-by: NSujith <Sujith.Manoharan@atheros.com> Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
Since the standards only define 12 legacy rates, 32 is certainly a sane upper limit and we don't need to use u64 everywhere. Add sanity checking that no more than 32 rates are registered and change the variables to u32 throughout. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 11 11月, 2008 1 次提交
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由 Johannes Berg 提交于
This is a constant from the 802.11 specification. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Cc: Javier Cardona <javier@cozybit.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 01 11月, 2008 1 次提交
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由 Johannes Berg 提交于
Nothing very interesting, some checkpatch inspired stuff, some other things. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 25 9月, 2008 1 次提交
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由 Johannes Berg 提交于
There's no need to register the master netdev with cfg80211, in fact, this is quite dangerous and lead to having to add checks for the master interface all over the config handlers. This patch removes the "ieee80211_ptr" from the master iface in favour of having a small netdev_priv() associated with the master interface that stores the ieee80211_local pointer. Because of this, a lot of code in the configuration handlers can go away. To make this patch easier to verify I have also removed a number of wiphy_priv() calls in favour of getting the sdata first and then the local pointer from that. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 16 9月, 2008 3 次提交
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由 Johannes Berg 提交于
Most of the scan functions are called ieee80211_sta_scan_* or similar, make clean it up so they are all just called ieee80211_scan_*. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
When we stop an interface, the work on it may still be pending or running. We do cancel the timer, but we do not currently protect against the work struct. The race is very unlikely to hit -- it'll happen only when the driver is using mac80211's workqueue to run long-running tasks and the sta/mesh works are delayed for quite a bit. This patch fixes it by cancelling the work explicitly. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
This patch splits off mesh handling from the STA/IBSS. Unfortunately it increases mesh code size a bit, but I think it makes things clearer. The patch also reduces per-interface run-time memory usage. Also clean up a few places where ifdef is not required. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 27 8月, 2008 1 次提交
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由 Julia Lawall 提交于
In the function mesh_table_grow, it is the new table not the argument table that should be freed if the function fails (cf commit bd9b448f) The semantic match that detects this problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @r exists@ local idexpression x; expression E,f; position p1,p2,p3; identifier l; statement S; @@ x = mesh_table_alloc@p1(...) ... if (x == NULL) S ... when != E = x when != mesh_table_free(x) goto@p2 l; ... when != E = x when != f(...,x,...) when any ( return \(0\|x\); | return@p3 ...; ) @script:python@ p1 << r.p1; p2 << r.p2; p3 << r.p3; @@ print "%s: call on line %s not freed or saved before return on line %s via line %s" % (p1[0].file,p1[0].line,p3[0].line,p2[0].line) // </smpl> Signed-off-by: NJulia Lawall <julia@diku.dk> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 23 8月, 2008 1 次提交
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由 Jasper Bryant-Greene 提交于
This patch replaces net_device arguments to mac80211 internal functions with ieee80211_{local,sub_if_data} as appropriate. It also does the same for many 802.11s mesh functions, and changes the mesh path table to be indexed on sub_if_data rather than net_device. If the mesh part needs to be a separate patch let me know, but since mesh uses a lot of mac80211 functions which were being converted anyway, the changes go hand-in-hand somewhat. This patch probably does not convert all the functions which could be converted, but it is a large chunk and followup patches will be provided. Signed-off-by: NJasper Bryant-Greene <jasper@amiton.co.nz> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 22 5月, 2008 3 次提交
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由 Pavel Emelyanov 提交于
There are already two places, that kfree the mesh_table and its buckets. Signed-off-by: NPavel Emelyanov <xemul@openvz.org> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Pavel Emelyanov 提交于
This is the first (of two) clean ups after the fixes above. The err variable is not even required after this cleaning. Signed-off-by: NPavel Emelyanov <xemul@openvz.org> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Pavel Emelyanov 提交于
The mesh_path_node_copy() performs kmalloc() and thus - may fail (well, it does not now, but I'm fixing this right now). Its caller - the mesh_table_grow() - isn't prepared for such a trick yet. This preparation is just flush the new hash and make copy_node() return an int value. Signed-off-by: NPavel Emelyanov <xemul@openvz.org> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 13 5月, 2008 1 次提交
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由 Luis Carlos Cobo 提交于
This should have been updated at the same time we were transitioning from 3 byte to 4 byte mesh sequence number. Pointed out by Johannes Berg. Signed-off-by: NLuis Carlos Cobo <luisca@cozybit.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 01 5月, 2008 1 次提交
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由 Luis Carlos Cobo 提交于
This follows the new 802.11s/D2.0 draft. Signed-off-by: NLuis Carlos Cobo <luisca@cozybit.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 09 4月, 2008 1 次提交
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由 John W. Linville 提交于
This reverts commit 6c4711b4. That patch breaks mesh config comparison between beacons/probe reponses, so every beacon from a mesh network would be added as a new bss. Since the comparison has to be performed for every received beacon I believe it is best to save the mesh config in a format easy to compare, rather than do a bunch of unaligned accesses to compare field by field. Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 02 4月, 2008 1 次提交
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由 Luis Carlos Cobo 提交于
This allows cleaner code when accesing bss->mesh_config components. Signed-off-by: NLuis Carlos Cobo <luisca@cozybit.com> Acked-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 07 3月, 2008 5 次提交
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由 Luis Carlos Cobo 提交于
Signed-off-by: NLuis Carlos Cobo <luisca@cozybit.com> Acked-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Luis Carlos Cobo 提交于
Signed-off-by: NLuis Carlos Cobo <luisca@cozybit.com> Acked-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
This makes access to the STA hash table/list use RCU to protect against freeing of items. However, it's not a true RCU, the copy step is missing: whenever somebody changes a STA item it is simply updated. This is an existing race condition that is now somewhat understandable. This patch also fixes the race key freeing vs. STA destruction by making sure that sta_info_destroy() is always called under RTNL and frees the key. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Johannes Berg 提交于
Various cleanups, reducing the #ifdef mess and other things. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Luis Carlos Cobo 提交于
The two important features coded in mesh.c are: Recently Multicast Cache: in on-demand HWMP, multicast traffic is retransmitted by every receiving node. Even though a mesh TTL counter avoids infinite loops, it is also necessary to avoid traffic explosion by keeping a cache of multicast mesh frame that have been received recently. With this feature, maximum number of retransmissions of a multicast frame for the case of N nodes within the range of each other would be N. Without it, the maximum number of retransmissions would be in the order of N^(MESH_TTL - 1). Code to support mesh tables. Signed-off-by: NLuis Carlos Cobo <luisca@cozybit.com> Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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