- 27 Oct, 2016 15 commits
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Jouni Malinen authored
The new nl80211 attributes can be used to provide KEK and nonces to allow the driver to encrypt and decrypt FILS (Re)Association Request/Response frames in station mode. Signed-off-by:
Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by:
Johannes Berg <johannes.berg@intel.com>
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Jouni Malinen authored
This defines authentication algorithms for FILS (IEEE 802.11ai). Signed-off-by:
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Jouni Malinen authored
Define the Element IDs and Element ID Extensions from IEEE P802.11ai/D11.0. In addition, add a new cfg80211_find_ext_ie() wrapper to make it easier to find information elements that used the Element ID Extension field. Signed-off-by:
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Jouni Malinen authored
This defines a feature flag that drivers can use to indicate that they support FILS authentication/association (IEEE 802.11ai) when using user space SME (NL80211_CMD_AUTHENTICATE) in station mode. Signed-off-by:
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Jouni Malinen authored
The special SAE case should be limited only for SAE since the more generic AUTH_DATA can now be used with other authentication algorithms as well. Signed-off-by:
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Jouni Malinen authored
This adds defines and nl80211 extensions to allow FILS Authentication to be implemented similarly to SAE. FILS does not need the special rules for the Authentication transaction number and Status code fields, but it does need to add non-IE fields. The previously used NL80211_ATTR_SAE_DATA can be reused for this to avoid having to duplicate that implementation. Rename that attribute to more generic NL80211_ATTR_AUTH_DATA (with backwards compatibility define for NL80211_SAE_DATA). Also document the special rules related to the Authentication transaction number and Status code fiels. Signed-off-by:
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Johannes Berg authored
It's just an inline doing the same thing, but the code is nicer with it. Signed-off-by: -
Johannes Berg authored
When we split the wiphy dump because it got too large, I added a comment and asked that all new command advertising be done only for userspace clients capable of receiving split data, in order to not break older ones (which can't use the new commands anyway) This mostly worked, and we haven't added many new commands, but I occasionally get patches that modify the wrong place. Make this easier to detect and understand by splitting out the old commands to a separate function that makes it more clear it should never be modified again. Signed-off-by: -
Johannes Berg authored
As part of interface combination checking, verify any new interface's beacon intervals. In fact, just always add the beacon interval since that's harmless. With this patch, mac80211 is prepared for drivers that set the min_beacon_int_gcd parameter in interface combinations. Signed-off-by: -
Johannes Berg authored
Remove the pointless checking against interface combinations in the initial basic beacon interval validation, that currently isn't taking into account radar detection or channels properly. Instead, just validate the basic range there, and then delay real checking to the interface combination validation that drivers must do. This means that drivers wanting to use the beacon_int_min_gcd will now have to pass the new_beacon_int when validating the AP/mesh start. Signed-off-by: -
Johannes Berg authored
This can't really be supported right now, because the IBSS interface may change its beacon interval at any time due to joining another network; thus, there's already "support" for different beacon intervals here, implicitly. Until we figure out how we should handle this case (continue to allow it to arbitrarily join? Join only if compatible?) disallow advertising that different beacon intervals are supported if IBSS is allowed. Signed-off-by: -
Johannes Berg authored
This is needed for beacon interval validation; if we don't store it, then new interfaces added won't validate that the beacon interval is the same as existing ones. Fix this. Signed-off-by: -
Johannes Berg authored
We shouldn't abort the iteration with an error when one of the potential combinations can't accomodate the beacon interval request, we should just skip that particular combination. Fix the code to do so. Signed-off-by: -
Arend Van Spriel authored
Add a helper using wdev to check if interface is running. This deals with both non-netdev and netdev interfaces. In struct wireless_dev replace 'p2p_started' and 'nan_started' by 'is_running' as those are mutually exclusive anyway, and unify all the code to use wdev_running(). Signed-off-by:
Arend van Spriel <arend.vanspriel@broadcom.com> Signed-off-by:
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Johannes Berg authored
The old WDS 4-addr frame support is very limited, e.g. * no encryption is possible on such links * it cannot support rate/HT/VHT negotiation * management APIs are very restricted These make the WDS legacy mode useless in practice. All of these are resolved by the 4-addr AP/client support, so there's also no reason to improve WDS in the future. Therefore, add a Kconfig option to disable legacy WDS. This gives people an "emergency valve" while they migrate to the better-supported 4-addr AP/client option; we plan to remove it (and the associated cfg80211/mac80211 code, which is the ultimate goal) in the future. Signed-off-by:
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- 19 Oct, 2016 8 commits
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Andrei Otcheretianski authored
Allow vendor commands that require WIPHY_VENDOR_CMD_NEED_RUNNING flag to be sent to NAN interface. Signed-off-by:
Andrei Otcheretianski <andrei.otcheretianski@intel.com> Signed-off-by:
Luca Coelho <luciano.coelho@intel.com> Signed-off-by:
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Ilan Peer authored
On a disconnect request from userspace, cfg80211 currently calls called rdev_disconnect() only in case that 'current_bss' was set, i.e. connection had been established. Change this to allow the userspace call to succeed and call the driver's disconnect() method also while the connection attempt is in progress, to be able to abort attempts. Signed-off-by:
Ilan Peer <ilan.peer@intel.com> Signed-off-by:
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Emmanuel Grumbach authored
The uapsd_queue field is in QoS IE order and not in IEEE80211_AC_*'s order. This means that mac80211 would get confused between BK and BE which is certainly not such a big deal but needs to be fixed. Signed-off-by:
Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by:
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Sara Sharon authored
Currently mac80211 determines whether HW does fragmentation by checking whether the set_frag_threshold callback is set or not. However, some drivers may want to set the HW fragmentation capability depending on HW generation. Allow this by checking a HW flag instead of checking the callback. Signed-off-by:
Sara Sharon <sara.sharon@intel.com> [added the flag to ath10k and wlcore] Signed-off-by:
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Emmanuel Grumbach authored
iwlwifi will check internally that the tid maps to an AC that is trigger enabled, but can't know what tid exactly. Allow the driver to pass a generic tid and make mac80211 assume that a trigger frame was received. Signed-off-by:
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Johannes Berg authored
When the driver sets the SUPPORTS_REORDERING_BUFFER hardware flag, the debugfs data for RX aggregation sessions won't even indicate that a session is open. Since the previous fix to store the dialog token separately, we can indicate that it's open and add the token so that there's at least some data (ssn is not available.) Signed-off-by: -
Johannes Berg authored
On drivers setting the SUPPORTS_REORDERING_BUFFER hardware flag, we crash when the peer sends an AddBA request while we already have a session open on the seame TID; this is because on those drivers, the tid_agg_rx is left NULL even though the session is valid, and the agg_session_valid bit is set. To fix this, store the dialog tokens outside the tid_agg_rx to be able to compare them to the received AddBA request. Fixes: f89e07d4 ("mac80211: agg-rx: refuse ADDBA Request with timeout update") Reported-by:
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Johannes Berg authored
The values don't match the radiotap spec, corrected that. Reported-by:
Oz Shalev <oz.shalev@intel.com> Signed-off-by:
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- 18 Oct, 2016 1 commit
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Wei Yongjun authored
'limits' is malloced in cfg80211_iter_combinations() and should be freed before leaving from the error handling cases, otherwise it will cause memory leak. Fixes: 0c317a02 ("cfg80211: support virtual interfaces with different beacon intervals") Signed-off-by:
Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by:
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- 17 Oct, 2016 5 commits
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Michael Braun authored
According to IEEE 802.11-2012 section 8.3.2 table 8-19, the outer SA/DA of A-MSDU frames need to be changed depending on FromDS/ToDS values. Signed-off-by:
Michael Braun <michael-dev@fami-braun.de> [use ether_addr_copy and add alignment annotations] Signed-off-by:
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Michael Braun authored
Signed-off-by:
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Linus Lüssing authored
For mac80211_hwsim interfaces, suggest to use wpa_supplicant with the more modern, netlink based driver instead of wext. Signed-off-by:
Linus Lüssing <linus.luessing@c0d3.blue> Signed-off-by:
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Johannes Berg authored
To avoid unused variable warnings when CONFIG_PM isn't set, add the appropriate ifdef to the policies that are only used for WoWLAN, which can only be invoked when CONFIG_PM is set. Signed-off-by: -
Johannes Berg authored
This was clearly intended to be used in the attribute parsing, so do that instead of leaving the attribute policy unused. Signed-off-by:
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- 13 Oct, 2016 2 commits
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Purushottam Kushwaha authored
This commit provides a mechanism for the host drivers to advertise the support for different beacon intervals among the respective interface combinations in a group, through NL80211_IFACE_COMB_BI_MIN_GCD (u32). This value will be compared against GCD of all beaconing interfaces of matching combinations. If the driver doesn't advertise this value, the old behaviour where all beacon intervals must be identical is retained. If it is specified, then any beacon interval for an interface in the interface combination as well as the GCD of all active beacon intervals in the combination must be greater or equal to this value. Signed-off-by:
Purushottam Kushwaha <pkushwah@qti.qualcomm.com> [change commit message, some variable names, small other things] Signed-off-by:
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Purushottam Kushwaha authored
Move the growing parameter list to a structure for the interface combination check and iteration functions in cfg80211 and mac80211 to make the code easier to understand. Signed-off-by:
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- 12 Oct, 2016 7 commits
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Johannes Berg authored
Michael Braun reported that when trying to inject A-MSDUs over monitor interfaces, the frame doesn't come out right since the QoS header A-MSDU bit is overwritten. Rather than adding that bit specifically simply preserve those bits that we don't set here, since we typically get here with a zeroed-out QoS header anyway. Signed-off-by: -
Michael Braun authored
This patch adds filtering for multicast data packets on AP_VLAN interfaces that have no authorized station connected and changes filtering on AP interfaces to not count stations assigned to AP_VLAN interfaces. This saves airtime and avoids waking up other stations currently authorized in this BSS. When using WPA, the packets dropped could not be decrypted by any station. The behaviour when there are no AP_VLAN interfaces is left unchanged. When there are AP_VLAN interfaces, this patch 1. adds filtering multicast data packets sent on AP_VLAN interfaces that have no authorized station connected. No filtering happens on 4addr AP_VLAN interfaces. 2. makes filtering of multicast data packets sent on AP interfaces depend on the number of authorized stations in this bss not assigned to an AP_VLAN interface. Therefore, a new num_mcast_sta counter is added for AP_VLAN interfaces. The existing one for AP interfaces is altered to not track stations assigned to an AP_VLAN interface. The new counter is exposed in debugfs. Signed-off-by:
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Michael Braun authored
Checking for num_mcast_sta in __ieee80211_request_smps_ap() is unnecessary as sta list will be empty in this case anyway, so the list iteration will just exit immediately. Since this isn't a "hot" code path, it doesn't really matter, and the next patch will redefine num_mcast_sta to make this check invalid. Signed-off-by:
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Johannes Berg authored
Instead of building the multi-channel ops at runtime, declare the common ops with a macro and build both that way, so that the multi-channel ops can also be const. As a side effect, due to the removed code, this decreases the size of the module (while shifting data from .bss to .text due to the newly added const). Signed-off-by: -
Johannes Berg authored
sta_info_get_bss() is equivalent to sta_info_get() in the mesh case, since sta->sdata->bss will be NULL (it's only set for AP/AP_VLAN interfaces.) Thus, the mesh check here isn't actually needed - remove it. Signed-off-by: -
git://people.freedesktop.org/~airlied/linuxLinus Torvalds authored
Pull drm updates from Dave Airlie: "Core: - Fence destaging work - DRIVER_LEGACY to split off legacy drm drivers - drm_mm refactoring - Splitting drm_crtc.c into chunks and documenting better - Display info fixes - rbtree support for prime buffer lookup - Simple VGA DAC driver Panel: - Add Nexus 7 panel - More simple panels i915: - Refactoring GEM naming - Refactored vma/active tracking - Lockless request lookups - Better stolen memory support - FBC fixes - SKL watermark fixes - VGPU improvements - dma-buf fencing support - Better DP dongle support amdgpu: - Powerplay for Iceland asics - Improved GPU reset support - UVD/VEC powergating support for CZ/ST - Preinitialised VRAM buffer support - Virtual display support - Initial SI support - GTT rework - PCI shutdown callback support - HPD IRQ storm fixes amdkfd: - bugfixes tilcdc: - Atomic modesetting support mediatek: - AAL + GAMMA engine support - Hook up gamma LUT - Temporal dithering support imx: - Pixel clock from devicetree - drm bridge support for LVDS bridges - active plane reconfiguration - VDIC deinterlacer support - Frame synchronisation unit support - Color space conversion support analogix: - PSR support - Better panel on/off support rockchip: - rk3399 vop/crtc support - PSR support vc4: - Interlaced vblank timing - 3D rendering CPU overhead reduction - HDMI output fixes tda998x: - HDMI audio ASoC support sunxi: - Allwinner A33 support - better TCON support msm: - DT binding cleanups - Explicit fence-fd support sti: - remove sti415/416 support etnaviv: - MMUv2 refactoring - GC3000 support exynos: - Refactoring HDMI DCC/PHY - G2D pm regression fix - Page fault issues with wait for vblank There is no nouveau work in this tree, as Ben didn't get a pull request in, and he was fighting moving to atomic and adding mst support, so maybe best it waits for a cycle" * tag 'drm-for-v4.9' of git://people.freedesktop.org/~airlied/linux: (1412 commits) drm/crtc: constify drm_crtc_index parameter drm/i915: Fix conflict resolution from backmerge of v4.8-rc8 to drm-next drm/i915/guc: Unwind GuC workqueue reservation if request construction fails drm/i915: Reset the breadcrumbs IRQ more carefully drm/i915: Force relocations via cpu if we run out of idle aperture drm/i915: Distinguish last emitted request from last submitted request drm/i915: Allow DP to work w/o EDID drm/i915: Move long hpd handling into the hotplug work drm/i915/execlists: Reinitialise context image after GPU hang drm/i915: Use correct index for backtracking HUNG semaphores drm/i915: Unalias obj->phys_handle and obj->userptr drm/i915: Just clear the mmiodebug before a register access drm/i915/gen9: only add the planes actually affected by ddb changes drm/i915: Allow PCH DPLL sharing regardless of DPLL_SDVO_HIGH_SPEED drm/i915/bxt: Fix HDMI DPLL configuration drm/i915/gen9: fix the watermark res_blocks value drm/i915/gen9: fix plane_blocks_per_line on watermarks calculations drm/i915/gen9: minimum scanlines for Y tile is not always 4 drm/i915/gen9: fix the WaWmMemoryReadLatency implementation drm/i915/kbl: KBL also needs to run the SAGV code ...
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Linus Torvalds authored
Merge more updates from Andrew Morton: - a few block updates that fell in my lap - lib/ updates - checkpatch - autofs - ipc - a ton of misc other things * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (100 commits) mm: split gfp_mask and mapping flags into separate fields fs: use mapping_set_error instead of opencoded set_bit treewide: remove redundant #include <linux/kconfig.h> hung_task: allow hung_task_panic when hung_task_warnings is 0 kthread: add kerneldoc for kthread_create() kthread: better support freezable kthread workers kthread: allow to modify delayed kthread work kthread: allow to cancel kthread work kthread: initial support for delayed kthread work kthread: detect when a kthread work is used by more workers kthread: add kthread_destroy_worker() kthread: add kthread_create_worker*() kthread: allow to call __kthread_create_on_node() with va_list args kthread/smpboot: do not park in kthread_create_on_cpu() kthread: kthread worker API cleanup kthread: rename probe_kthread_data() to kthread_probe_data() scripts/tags.sh: enable code completion in VIM mm: kmemleak: avoid using __va() on addresses that don't have a lowmem mapping kdump, vmcoreinfo: report memory sections virtual addresses ipc/sem.c: add cond_resched in exit_sme ...
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- 11 Oct, 2016 2 commits
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Michal Hocko authored
mapping->flags currently encodes two different things into a single flag. It contains sticky gfp_mask for page cache allocations and AS_ codes used to report errors/enospace and other states which are mapping specific. Condensing the two semantically unrelated things saves few bytes but it also complicates other things. For one thing the gfp flags space is reduced and in fact we are already running out of available bits. It can be assumed that more gfp flags will be necessary later on. To not introduce the address_space grow (at least on x86_64) we can stick it right after private_lock because we have a hole there. struct address_space { struct inode * host; /* 0 8 */ struct radix_tree_root page_tree; /* 8 16 */ spinlock_t tree_lock; /* 24 4 */ atomic_t i_mmap_writable; /* 28 4 */ struct rb_root i_mmap; /* 32 8 */ struct rw_semaphore i_mmap_rwsem; /* 40 40 */ /* --- cacheline 1 boundary (64 bytes) was 16 bytes ago --- */ long unsigned int nrpages; /* 80 8 */ long unsigned int nrexceptional; /* 88 8 */ long unsigned int writeback_index; /* 96 8 */ const struct address_space_operations * a_ops; /* 104 8 */ long unsigned int flags; /* 112 8 */ spinlock_t private_lock; /* 120 4 */ /* XXX 4 bytes hole, try to pack */ /* --- cacheline 2 boundary (128 bytes) --- */ struct list_head private_list; /* 128 16 */ void * private_data; /* 144 8 */ /* size: 152, cachelines: 3, members: 14 */ /* sum members: 148, holes: 1, sum holes: 4 */ /* last cacheline: 24 bytes */ }; Link: http://lkml.kernel.org/r/20160912114852.GI14524@dhcp22.suse.czSigned-off-by:Michal Hocko <mhocko@suse.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Michal Hocko authored
The mapping_set_error() helper sets the correct AS_ flag for the mapping so there is no reason to open code it. Use the helper directly. [akpm@linux-foundation.org: be honest about conversion from -ENXIO to -EIO] Link: http://lkml.kernel.org/r/20160912111608.2588-2-mhocko@kernel.orgSigned-off-by:
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