kernel/git/stable/linux.git/net/wireless/mlme.c, branch linux-3.16.y

cfg80211/mac80211: fix BSS leaks when abandoning assoc attempts

2017-03-16T02:26:32+00:00

commit e6f462df9acd2a3295e5d34eb29e2823220cf129 upstream. When mac80211 abandons an association attempt, it may free all the data structures, but inform cfg80211 and userspace about it only by sending the deauth frame it received, in which case cfg80211 has no link to the BSS struct that was used and will not cfg80211_unhold_bss() it. Fix this by providing a way to inform cfg80211 of this with the BSS entry passed, so that it can clean up properly, and use this ability in the appropriate places in mac80211. This isn't ideal: some code is more or less duplicated and tracing is missing. However, it's a fairly small change and it's thus easier to backport - cleanups can come later. Signed-off-by: Johannes Berg [bwh: Backported to 3.16: - Drop changes to ieee80211_rx_mgmt_deauth(), ieee80211_mgd_deauth() - Adjust context] Signed-off-by: Ben Hutchings

cfg80211: change wiphy_to_dev function name

2014-04-25T15:33:04+00:00

Name wiphy_to_rdev is more accurate to describe what the function does, i.e., return a pointer pointing to struct cfg80211_registered_device. Signed-off-by: Zhao, Gang Signed-off-by: Johannes Berg

cfg80211/mac80211: move interface counting for combination check to mac80211

2014-04-09T08:55:43+00:00

Move the counting part of the interface combination check from cfg80211 to mac80211. This is needed to simplify locking when the driver has to perform a combination check by itself (eg. with channel-switch). Signed-off-by: Luciano Coelho Signed-off-by: Johannes Berg

cfg80211: DFS get CAC time from regulatory database

2014-02-25T16:32:54+00:00

Send Channel Availability Check time as a parameter of start_radar_detection() callback. Get CAC time from regulatory database. Signed-off-by: Janusz Dziedzic Signed-off-by: Johannes Berg

cfg80211: consider existing DFS interfaces

2014-02-04T20:58:17+00:00

It was possible to break interface combinations in the following way: combo 1: iftype = AP, num_ifaces = 2, num_chans = 2, combo 2: iftype = AP, num_ifaces = 1, num_chans = 1, radar = HT20 With the above interface combinations it was possible to: step 1. start AP on DFS channel by matching combo 2 step 2. start AP on non-DFS channel by matching combo 1 This was possible beacuse (step 2) did not consider if other interfaces require radar detection. The patch changes how cfg80211 tracks channels - instead of channel itself now a complete chandef is stored. Signed-off-by: Michal Kazior Signed-off-by: Johannes Berg

cfg80211: aggregate mgmt_tx parameters into a struct

2013-12-02T10:51:52+00:00

Change cfg80211 and mac80211 to use cfg80211_mgmt_tx_params struct to aggregate parameters for mgmt_tx functions. This makes the functions' signatures less clumsy and allows less painful parameters extension. Signed-off-by: Andrei Otcheretianski [fix all other drivers] Signed-off-by: Johannes Berg

cfg80211/mac80211: DFS setup chandef for cac event

2013-11-25T19:50:46+00:00

To report channel width correctly we have to send correct channel parameters from mac80211 when calling cfg80211_cac_event(). This is required in case of using channel width higher than 20MHz and we have to set correct dfs channel state after CAC (NL80211_DFS_AVAILABLE). Signed-off-by: Janusz Dziedzic Reviewed-by: Luis R. Rodriguez Signed-off-by: Johannes Berg

cfg80211: update dfs_state_entered upon dfs_state change

2013-10-21T12:50:27+00:00

The timestamp wasn't updated after transitioning to the NL80211_DFS_USABLE state after NOP time. Signed-off-by: Michal Kazior Signed-off-by: Johannes Berg

cfg80211: fix DFS channel recovery timeout

2013-10-21T12:50:27+00:00

The timeout was not properly converted from msecs to jiffies. As a result channel transition to NL80211_DFS_USABLE was delayed depending on CONFIG_HZ configuration, e.g. HZ=100 would delay the NOP from 30 minutes to 300 minutes. Signed-off-by: Michal Kazior Signed-off-by: Johannes Berg

cfg80211: add flags to cfg80211_rx_mgmt()

2013-08-23T14:06:03+00:00

Add flags intended to report various auxiliary information and introduce the NL80211_RXMGMT_FLAG_ANSWERED flag to report that the frame was already answered by the device. Signed-off-by: Vladimir Kondratiev [REPLIED->ANSWERED, reword commit message] Signed-off-by: Johannes Berg