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2021-02-16Stable updateFedora Kernel Team1-3/+4
2020-12-04cfg80211: initialize rekey_dataSara Sharon1-1/+1
In case we have old supplicant, the akm field is uninitialized. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/iwlwifi.20201129172929.930f0ab7ebee.Ic546e384efab3f4a89f318eafddc3eb7d556aecb@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-10-30cfg80211: initialize wdev data earlierJohannes Berg1-1/+2
There's a race condition in the netdev registration in that NETDEV_REGISTER actually happens after the netdev is available, and so if we initialize things only there, we might get called with an uninitialized wdev through nl80211 - not using a wdev but using a netdev interface index. I found this while looking into a syzbot report, but it doesn't really seem to be related, and unfortunately there's no repro for it (yet). I can't (yet) explain how it managed to get into cfg80211_release_pmsr() from nl80211_netlink_notify() without the wdev having been initialized, as the latter only iterates the wdevs that are linked into the rdev, which even without the change here happened after init. However, looking at this, it seems fairly clear that the init needs to be done earlier, otherwise we might even re-init on a netns move, when data might still be pending. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Link: https://lore.kernel.org/r/20201009135821.fdcbba3aad65.Ie9201d91dbcb7da32318812effdc1561aeaf4cdc@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-10-09Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski1-0/+3
Small conflict around locking in rxrpc_process_event() - channel_lock moved to bundle in next, while state lock needs _bh() from net. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-08net: wireless: nl80211: fix out-of-bounds access in nl80211_del_key()Anant Thazhemadam1-0/+3
In nl80211_parse_key(), key.idx is first initialized as -1. If this value of key.idx remains unmodified and gets returned, and nl80211_key_allowed() also returns 0, then rdev_del_key() gets called with key.idx = -1. This causes an out-of-bounds array access. Handle this issue by checking if the value of key.idx after nl80211_parse_key() is called and return -EINVAL if key.idx < 0. Cc: stable@vger.kernel.org Reported-by: syzbot+b1bb342d1d097516cbda@syzkaller.appspotmail.com Tested-by: syzbot+b1bb342d1d097516cbda@syzkaller.appspotmail.com Signed-off-by: Anant Thazhemadam <anant.thazhemadam@gmail.com> Link: https://lore.kernel.org/r/20201007035401.9522-1-anant.thazhemadam@gmail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-10-03genetlink: move to smaller ops wherever possibleJakub Kicinski1-0/+5
Bulk of the genetlink users can use smaller ops, move them. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02nl80211: fix non-split wiphy informationJohannes Berg1-1/+4
When dumping wiphy information, we try to split the data into many submessages, but for old userspace we still support the old mode where this doesn't happen. However, in this case we were not resetting our state correctly and dumping multiple messages for each wiphy, which would have broken such older userspace. This was broken pretty much immediately afterwards because it only worked in the original commit where non-split dumps didn't have any more data than split dumps... Fixes: fe1abafd942f ("nl80211: re-add channel width and extended capa advertising") Signed-off-by: Johannes Berg <johannes.berg@intel.com> Link: https://lore.kernel.org/r/20200928130717.3e6d9c6bada2.Ie0f151a8d0d00a8e1e18f6a8c9244dd02496af67@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-10-02nl80211: reduce non-split wiphy dump sizeJohannes Berg1-13/+24
When wiphy dumps cannot be split, such as in events or with older userspace that doesn't support it, the size can today be too big. Reduce it, by doing two things: 1) remove data that couldn't have been present before the split capability was introduced since it's new, such as HE capabilities 2) as suggested by Martin Willi, remove management frame subtypes from the split dumps, as just (1) isn't even enough due to other new code capabilities. This is fine as old consumers (really just wpa_supplicant) didn't check this data before they got support for split dumps. Reported-by: Martin Willi <martin@strongswan.org> Suggested-by: Martin Willi <martin@strongswan.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Tested-by: Martin Willi <martin@strongswan.org> Link: https://lore.kernel.org/r/20200928130655.53bce7873164.I71f06c9a221cd0630429a1a56eeae68a13beca61@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-09-28nl80211: extend support to config spatial reuse parameter setRajkumar Manoharan1-0/+25
Allow the user to configure below Spatial Reuse Parameter Set element. * Non-SRG OBSS PD Max Offset * SRG BSS Color Bitmap * SRG Partial BSSID Bitmap Signed-off-by: Rajkumar Manoharan <rmanohar@codeaurora.org> Link: https://lore.kernel.org/r/1601278091-20313-2-git-send-email-rmanohar@codeaurora.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-09-28nl80211: fix OBSS PD min and max offset validationRajkumar Manoharan1-10/+8
The SRG min and max offset won't present when SRG Information Present of SR control field of Spatial Reuse Parameter Set element set to 0. Per spec. IEEE802.11ax D7.0, SRG OBSS PD Min Offset ≤ SRG OBSS PD Max Offset. Hence fix the constrain check to allow same values in both offset and also call appropriate nla_get function to read the values. Fixes: 796e90f42b7e ("cfg80211: add support for parsing OBBS_PD attributes") Signed-off-by: Rajkumar Manoharan <rmanohar@codeaurora.org> Link: https://lore.kernel.org/r/1601278091-20313-1-git-send-email-rmanohar@codeaurora.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-09-28nl80211: include frequency offset in survey infoThomas Pedersen1-0/+5
Recently channels gained a potential frequency offset, so include this in the per-channel survey info. Signed-off-by: Thomas Pedersen <thomas@adapt-ip.com> Link: https://lore.kernel.org/r/20200922022818.15855-16-thomas@adapt-ip.com [add the offset only if non-zero] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-09-28nl80211: support S1G capability overrides in assocThomas Pedersen1-0/+20
NL80211_ATTR_S1G_CAPABILITY can be passed along with NL80211_ATTR_S1G_CAPABILITY_MASK to NL80211_CMD_ASSOCIATE to indicate S1G capabilities which should override the hardware capabilities in eg. the association request. Signed-off-by: Thomas Pedersen <thomas@adapt-ip.com> Link: https://lore.kernel.org/r/20200922022818.15855-4-thomas@adapt-ip.com [johannes: always require both attributes together, commit message] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-09-28nl80211/cfg80211: support 6 GHz scanningTova Mussai1-4/+7
Support 6 GHz scanning, by * a new scan flag to scan for colocated BSSes advertised by (and found) APs on 2.4 & 5 GHz * doing the necessary reduced neighbor report parsing for this, to find them * adding the ability to split the scan request in case the device by itself cannot support this. Also add some necessary bits in mac80211 to not break with these changes. Signed-off-by: Tova Mussai <tova.mussai@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Link: https://lore.kernel.org/r/20200918113313.232917c93af9.Ida22f0212f9122f47094d81659e879a50434a6a2@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-09-18nl80211: Unsolicited broadcast probe response supportAloka Dixit1-0/+46
This patch adds new attributes to support unsolicited broadcast probe response transmission used for in-band discovery in 6GHz band (IEEE P802.11ax/D6.0 26.17.2.3.2, AP behavior for fast passive scanning). The new attribute, NL80211_ATTR_UNSOL_BCAST_PROBE_RESP, is nested which supports following parameters: (1) NL80211_UNSOL_BCAST_PROBE_RESP_ATTR_INT - Packet interval (2) NL80211_UNSOL_BCAST_PROBE_RESP_ATTR_TMPL - Template data Signed-off-by: Aloka Dixit <alokad@codeaurora.org> Link: https://lore.kernel.org/r/010101747a946698-aac263ae-2ed3-4dab-9590-0bc7131214e1-000000@us-west-2.amazonses.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-09-18nl80211: Add FILS discovery supportAloka Dixit1-0/+49
FILS discovery attribute, NL80211_ATTR_FILS_DISCOVERY, is nested which supports following parameters as given in IEEE Std 802.11ai-2016, Annex C.3 MIB detail: (1) NL80211_FILS_DISCOVERY_ATTR_INT_MIN - Minimum packet interval (2) NL80211_FILS_DISCOVERY_ATTR_INT_MAX - Maximum packet interval (3) NL80211_FILS_DISCOVERY_ATTR_TMPL - Template data Signed-off-by: Aloka Dixit <alokad@codeaurora.org> Link: https://lore.kernel.org/r/20200805011838.28166-2-alokad@codeaurora.org [fix attribute and other names, use NLA_RANGE(), use policy only once] Link: https://lore.kernel.org/r/010101747a7b38a8-306f06b2-9061-4baf-81c1-054a42a18e22-000000@us-west-2.amazonses.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-09-18nl80211: correctly validate S1G beacon headThomas Pedersen1-4/+13
The S1G beacon has a different header size than regular beacons, so adjust the beacon head validator. Signed-off-by: Thomas Pedersen <thomas@adapt-ip.com> Link: https://lore.kernel.org/r/20200908190323.15814-5-thomas@adapt-ip.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-09-18nl80211: advertise supported channel width in S1GThomas Pedersen1-0/+15
S1G supports 5 channel widths: 1, 2, 4, 8, and 16. One channel width is allowed per frequency in each operating class, so it makes more sense to advertise the specific channel width allowed. Signed-off-by: Thomas Pedersen <thomas@adapt-ip.com> Link: https://lore.kernel.org/r/20200908190323.15814-3-thomas@adapt-ip.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-09-05Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski1-1/+1
We got slightly different patches removing a double word in a comment in net/ipv4/raw.c - picked the version from net. Simple conflict in drivers/net/ethernet/ibm/ibmvnic.c. Use cached values instead of VNIC login response buffer (following what commit 507ebe6444a4 ("ibmvnic: Fix use-after-free of VNIC login response buffer") did). Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-09-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds1-1/+1
Pull networking fixes from David Miller: 1) Use netif_rx_ni() when necessary in batman-adv stack, from Jussi Kivilinna. 2) Fix loss of RTT samples in rxrpc, from David Howells. 3) Memory leak in hns_nic_dev_probe(), from Dignhao Liu. 4) ravb module cannot be unloaded, fix from Yuusuke Ashizuka. 5) We disable BH for too lokng in sctp_get_port_local(), add a cond_resched() here as well, from Xin Long. 6) Fix memory leak in st95hf_in_send_cmd, from Dinghao Liu. 7) Out of bound access in bpf_raw_tp_link_fill_link_info(), from Yonghong Song. 8) Missing of_node_put() in mt7530 DSA driver, from Sumera Priyadarsini. 9) Fix crash in bnxt_fw_reset_task(), from Michael Chan. 10) Fix geneve tunnel checksumming bug in hns3, from Yi Li. 11) Memory leak in rxkad_verify_response, from Dinghao Liu. 12) In tipc, don't use smp_processor_id() in preemptible context. From Tuong Lien. 13) Fix signedness issue in mlx4 memory allocation, from Shung-Hsi Yu. 14) Missing clk_disable_prepare() in gemini driver, from Dan Carpenter. 15) Fix ABI mismatch between driver and firmware in nfp, from Louis Peens. * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (110 commits) net/smc: fix sock refcounting in case of termination net/smc: reset sndbuf_desc if freed net/smc: set rx_off for SMCR explicitly net/smc: fix toleration of fake add_link messages tg3: Fix soft lockup when tg3_reset_task() fails. doc: net: dsa: Fix typo in config code sample net: dp83867: Fix WoL SecureOn password nfp: flower: fix ABI mismatch between driver and firmware tipc: fix shutdown() of connectionless socket ipv6: Fix sysctl max for fib_multipath_hash_policy drivers/net/wan/hdlc: Change the default of hard_header_len to 0 net: gemini: Fix another missing clk_disable_unprepare() in probe net: bcmgenet: fix mask check in bcmgenet_validate_flow() amd-xgbe: Add support for new port mode net: usb: dm9601: Add USB ID of Keenetic Plus DSL vhost: fix typo in error message net: ethernet: mlx4: Fix memory allocation in mlx4_buddy_init() pktgen: fix error message with wrong function name net: ethernet: ti: am65-cpsw: fix rmii 100Mbit link mode cxgb4: fix thermal zone device registration ...
2020-08-27nl80211: support SAE authentication offload in AP modeChung-Hsien Hsu1-3/+6
Let drivers advertise support for AP-mode SAE authentication offload with a new NL80211_EXT_FEATURE_SAE_OFFLOAD_AP flag. Signed-off-by: Chung-Hsien Hsu <stanley.hsu@cypress.com> Signed-off-by: Chi-Hsien Lin <chi-hsien.lin@cypress.com> Link: https://lore.kernel.org/r/20200817073316.33402-4-stanley.hsu@cypress.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-08-27nl80211: rename csa counter attributes countdown countersJohn Crispin1-8/+8
We want to reuse the attributes for other counters such as BSS color change. Rename them to more generic names. Signed-off-by: John Crispin <john@phrozen.org> Link: https://lore.kernel.org/r/20200811080107.3615705-1-john@phrozen.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-08-27nl80211: add support for setting fixed HE rate/gi/ltfMiles Hu1-8/+129
This patch adds the nl80211 structs, definitions, policies and parsing code required to pass fixed HE rate, GI and LTF settings. Signed-off-by: Miles Hu <milehu@codeaurora.org> Signed-off-by: John Crispin <john@phrozen.org> Link: https://lore.kernel.org/r/20200804081630.2013619-1-john@phrozen.org [fix comment] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-08-27nl80211: use NLA_POLICY_RANGE(NLA_BINARY, ...) for a few attributesJohannes Berg1-22/+14
We have a few attributes with minimum and maximum lengths that are not the same, use the new feature of being able to specify both in the policy to validate them, removing code and allowing this to be advertised to userspace in the policy export. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Link: https://lore.kernel.org/r/20200819085642.8f12ffa14f33.I9d948d59870e521febcd79bb4a986b1de1dca47b@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-08-27nl80211: clean up code/policy a bitJohannes Berg1-42/+18
Use the policy to validate minimum and exact lengths in some attributes that weren't previously covered in the right ways, and remove associated validation code. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Link: https://lore.kernel.org/r/20200805154714.3ba1e233cfa0.I5dc8109b7ab5c3f4ae925f903a30cc9b35753262@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-08-27net: wireless: Convert to use the preferred fallthrough macroMiaohe Lin1-10/+10
Convert the uses of fallthrough comments to fallthrough macro. Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> Link: https://lore.kernel.org/r/20200822082323.45495-1-linmiaohe@huawei.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-08-24treewide: Use fallthrough pseudo-keywordGustavo A. R. Silva1-10/+10
Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary fall-through markings when it is the case. [1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2020-08-20nl80211: fix NL80211_ATTR_HE_6GHZ_CAPABILITY usageJohannes Berg1-1/+1
In nl80211_set_station(), we check NL80211_ATTR_HE_6GHZ_CAPABILITY and then use NL80211_ATTR_HE_CAPABILITY, which is clearly wrong. Fix this to use NL80211_ATTR_HE_6GHZ_CAPABILITY as well. Cc: stable@vger.kernel.org Fixes: 43e64bf301fd ("cfg80211: handle 6 GHz capability of new station") Link: https://lore.kernel.org/r/20200805153516.310cef625955.I0abc04dc8abb2c7c005c88ef8fa2d0e3c9fb95c4@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-08-18netlink: consistently use NLA_POLICY_MIN_LEN()Johannes Berg1-3/+3
Change places that open-code NLA_POLICY_MIN_LEN() to use the macro instead, giving us flexibility in how we handle the details of the macro. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-18netlink: consistently use NLA_POLICY_EXACT_LEN()Johannes Berg1-4/+2
Change places that open-code NLA_POLICY_EXACT_LEN() to use the macro instead, giving us flexibility in how we handle the details of the macro. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Acked-by: Matthieu Baerts <matthieu.baerts@tessares.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-07mm, treewide: rename kzfree() to kfree_sensitive()Waiman Long1-12/+12
As said by Linus: A symmetric naming is only helpful if it implies symmetries in use. Otherwise it's actively misleading. In "kzalloc()", the z is meaningful and an important part of what the caller wants. In "kzfree()", the z is actively detrimental, because maybe in the future we really _might_ want to use that "memfill(0xdeadbeef)" or something. The "zero" part of the interface isn't even _relevant_. The main reason that kzfree() exists is to clear sensitive information that should not be leaked to other future users of the same memory objects. Rename kzfree() to kfree_sensitive() to follow the example of the recently added kvfree_sensitive() and make the intention of the API more explicit. In addition, memzero_explicit() is used to clear the memory to make sure that it won't get optimized away by the compiler. The renaming is done by using the command sequence: git grep -w --name-only kzfree |\ xargs sed -i 's/kzfree/kfree_sensitive/' followed by some editing of the kfree_sensitive() kerneldoc and adding a kzfree backward compatibility macro in slab.h. [akpm@linux-foundation.org: fs/crypto/inline_crypt.c needs linux/slab.h] [akpm@linux-foundation.org: fix fs/crypto/inline_crypt.c some more] Suggested-by: Joe Perches <joe@perches.com> Signed-off-by: Waiman Long <longman@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: David Howells <dhowells@redhat.com> Acked-by: Michal Hocko <mhocko@suse.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Cc: James Morris <jmorris@namei.org> Cc: "Serge E. Hallyn" <serge@hallyn.com> Cc: Joe Perches <joe@perches.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: David Rientjes <rientjes@google.com> Cc: Dan Carpenter <dan.carpenter@oracle.com> Cc: "Jason A . Donenfeld" <Jason@zx2c4.com> Link: http://lkml.kernel.org/r/20200616154311.12314-3-longman@redhat.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-08-03nl80211: use eth_zero_addr() to clear mac addressMiaohe Lin1-2/+1
Use eth_zero_addr() to clear mac address instead of memset(). Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> Link: https://lore.kernel.org/r/1596273349-24333-1-git-send-email-linmiaohe@huawei.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-08-02Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller1-3/+3
Resolved kernel/bpf/btf.c using instructions from merge commit 69138b34a7248d2396ab85c8652e20c0c39beaba Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-31nl80211: support 4-way handshake offloading for WPA/WPA2-PSK in AP modeChung-Hsien Hsu1-1/+3
Let drivers advertise support for AP-mode WPA/WPA2-PSK 4-way handshake offloading with a new NL80211_EXT_FEATURE_4WAY_HANDSHAKE_AP_PSK flag. Extend use of NL80211_ATTR_PMK attribute indicating it might be passed as part of NL80211_CMD_START_AP command, and contain the PSK (which is the PMK, hence the name). The driver is assumed to handle the 4-way handshake by itself in this case, instead of relying on userspace. Signed-off-by: Chung-Hsien Hsu <stanley.hsu@cypress.com> Signed-off-by: Chi-Hsien Lin <chi-hsien.lin@cypress.com> Link: https://lore.kernel.org/r/20200623134938.39997-2-chi-hsien.lin@cypress.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-31cfg80211: invert HE BSS color 'disabled' to 'enabled'Johannes Berg1-5/+2
This is in fact 'disabled' in the spec, but there it's in a place where that actually makes sense. In our internal data structures, it doesn't really make sense, and in fact the previous commit just fixed a bug in that area. Make this safer by inverting the polarity from 'disabled' to 'enabled'. Link: https://lore.kernel.org/r/20200730130051.5d8399545bd9.Ie62fdcd1a6cd9c969315bc124084a494ca6c8df3@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-31cfg80211/mac80211: avoid bss color setting in non-HE modesP Praneesh1-0/+3
Adding bss-color configuration is only valid in HE mode. Earlier we have enabled it by default, irrespective of capabilities/mode. Fix that. Reported-by: kernel test robot <lkp@intel.com> Reported-by: Rajkumar Manoharan <rmanohar@codeaurora.org> Signed-off-by: P Praneesh <ppranees@codeaurora.org> Link: https://lore.kernel.org/r/1594262781-21444-1-git-send-email-ppranees@codeaurora.org [fix up commit message] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-31cfg80211/mac80211: add connected to auth server to station infoMarkus Theil1-0/+1
This patch adds the necessary bits to later query the auth server flag for every peer from iw. Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de> Link: https://lore.kernel.org/r/20200611140238.427461-2-markus.theil@tu-ilmenau.de Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-31cfg80211/mac80211: add connected to auth server to meshconfMarkus Theil1-1/+7
Besides information about num of peerings and gate connectivity, the mesh formation byte also contains a flag for authentication server connectivity, that currently cannot be set in the mesh conf. This patch adds this capability, which is necessary to implement 802.1X authentication in mesh mode. Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de> Link: https://lore.kernel.org/r/20200611140238.427461-1-markus.theil@tu-ilmenau.de Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-31cfg80211/mac80211: add mesh_param "mesh_nolearn" to skip path discoveryLinus Lüssing1-1/+6
Currently, before being able to forward a packet between two 802.11s nodes, both a PLINK handshake is performed upon receiving a beacon and then later a PREQ/PREP exchange for path discovery is performed on demand upon receiving a data frame to forward. When running a mesh protocol on top of an 802.11s interface, like batman-adv, we do not need the multi-hop mesh routing capabilities of 802.11s and usually set mesh_fwding=0. However, even with mesh_fwding=0 the PREQ/PREP path discovery is still performed on demand. Even though in this scenario the next hop PREQ/PREP will determine is always the direct 11s neighbor node. The new mesh_nolearn parameter allows to skip the PREQ/PREP exchange in this scenario, leading to a reduced delay, reduced packet buffering and simplifies HWMP in general. mesh_nolearn is still rather conservative in that if the packet destination is not a direct 11s neighbor, it will fall back to PREQ/PREP path discovery. For normal, multi-hop 802.11s mesh routing it is usually not advisable to enable mesh_nolearn as a transmission to a direct but distant neighbor might be worse than reaching that same node via a more robust / higher throughput etc. multi-hop path. Cc: Sven Eckelmann <sven@narfation.org> Cc: Simon Wunderlich <sw@simonwunderlich.de> Signed-off-by: Linus Lüssing <ll@simonwunderlich.de> Link: https://lore.kernel.org/r/20200617073034.26149-1-linus.luessing@c0d3.blue [fix nl80211 policy to range 0/1 only] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-31nl80211: Simplify error handling path in 'nl80211_trigger_scan()'Christophe JAILLET1-8/+11
Re-write the end of 'nl80211_trigger_scan()' with a more standard, easy to understand and future proof version. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/20200712173551.274448-1-christophe.jaillet@wanadoo.fr Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-31nl80211: Remove a misleading label in 'nl80211_trigger_scan()'Christophe JAILLET1-21/+10
Since commit 5fe231e87372 ("cfg80211: vastly simplify locking"), the 'unlock' label at the end of 'nl80211_trigger_scan()' is useless and misleading, because nothing is unlocked there. Direct return can be used instead of 'err = -<error code>; goto unlock;' construction. Remove this label and simplify code accordingly. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/20200712173539.274395-1-christophe.jaillet@wanadoo.fr Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-31cfg80211: allow vendor dumpit to terminate by returning 0Julian Squires1-1/+1
nl80211 vendor netlink dumpit, like netlink_callback->dump, should signal successful completion by returning 0. Currently, that will just cause dumpit to be called again, possibly many times until an error occurs. Since skb->len is never going to be 0 by the time dumpit is called, the only way for dumpit to signal completion is by returning an error. If it returns a positive value, the current message is cancelled, but that positive value is returned and nl80211_vendor_cmd_dump gets called again. Fix that by passing a return value of 0 through. Signed-off-by: Julian Squires <julian@cipht.net> Link: https://lore.kernel.org/r/20200720145033.401307-1-julian@cipht.net [reword commit message] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-07-30cfg80211: check vendor command doit pointer before useJulian Squires1-3/+3
In the case where a vendor command does not implement doit, and has no flags set, doit would not be validated and a NULL pointer dereference would occur, for example when invoking the vendor command via iw. I encountered this while developing new vendor commands. Perhaps in practice it is advisable to always implement doit along with dumpit, but it seems reasonable to me to always check doit anyway, not just when NEED_WDEV. Signed-off-by: Julian Squires <julian@cipht.net> Link: https://lore.kernel.org/r/20200706211353.2366470-1-julian@cipht.net Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-06-26nl80211: fix memory leak when parsing NL80211_ATTR_HE_BSS_COLORLuca Coelho1-1/+1
If there is an error when parsing the NL80211_ATTR_HE_BSS_COLOR attribute, we return immediately without freeing param.acl. Fit it by using goto out instead of returning immediately. Fixes: 5c5e52d1bb96 ("nl80211: add handling for BSS color") Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/iwlwifi.20200626124931.7ad2a3eb894f.I60905fb70bd20389a3b170db515a07275e31845e@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-06-26nl80211: don't return err unconditionally in nl80211_start_ap()Luca Coelho1-1/+2
When a memory leak was fixed, a return err was changed to goto err, but, accidentally, the if (err) was removed, so now we always exit at this point. Fix it by adding if (err) back. Fixes: 9951ebfcdf2b ("nl80211: fix potential leak in AP start") Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/iwlwifi.20200626124931.871ba5b31eee.I97340172d92164ee92f3c803fe20a8a6e97714e1@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-05-31cfg80211: support bigger kek/kck key lengthNathan Errera1-4/+19
With some newer AKMs, the KCK and KEK are bigger, so allow that if the driver advertises support for it. In addition, add a new attribute for the AKM so we can use it for offloaded rekeying. Signed-off-by: Nathan Errera <nathan.errera@intel.com> [reword commit message] Link: https://lore.kernel.org/r/20200528212237.5eb58b00a5d1.I61b09d77c4f382e8d58a05dcca78096e99a6bc15@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-05-31cfg80211: add and expose HE 6 GHz band capabilitiesJohannes Berg1-1/+8
These capabilities cover what would otherwise be transported in HT/VHT capabilities, but only a subset thereof that is actually needed on 6 GHz with HE already present. Expose the capabilities to userspace, drivers are expected to set them as using the 6 GHz band (currently) requires HE capability. Link: https://lore.kernel.org/r/20200528213443.244cd5cb9db8.Icd8c773277a88c837e7e3af1d4d1013cc3b66543@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-05-31cfg80211: handle 6 GHz capability of new stationRajkumar Manoharan1-1/+17
Handle 6 GHz HE capability while adding new station. It will be used later in mac80211 station processing. Signed-off-by: Rajkumar Manoharan <rmanohar@codeaurora.org> Link: https://lore.kernel.org/r/1589399105-25472-2-git-send-email-rmanohar@codeaurora.org [handle nl80211_set_station, require WME, remove NL80211_HE_6GHZ_CAPABILITY_LEN] Link: https://lore.kernel.org/r/20200528213443.b6b711fd4312.Ic9b97d57b6c4f2b28d4b2d23d2849d8bc20bd8cc@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-05-27nl80211: Add support to configure TID specific Tx rate configurationTamizh Chelvam1-14/+42
This patch adds support to configure per TID Tx Rate configuration through NL80211_TID_CONFIG_ATTR_TX_RATE* attributes. And it uses nl80211_parse_tx_bitrate_mask api to validate the Tx rate mask. Signed-off-by: Tamizh Chelvam <tamizhr@codeaurora.org> Link: https://lore.kernel.org/r/1589357504-10175-1-git-send-email-tamizhr@codeaurora.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-05-27nl80211: add ability to report TX status for control port TXMarkus Theil1-8/+33
This adds the necessary capabilities in nl80211 to allow drivers to assign a cookie to control port TX frames (returned via extack in the netlink ACK message of the command) and then later report the frame's status. Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de> Link: https://lore.kernel.org/r/20200508144202.7678-2-markus.theil@tu-ilmenau.de [use extack cookie instead of explicit message, recombine patches] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-05-27nl80211: support scan frequencies in KHzThomas Pedersen1-12/+39
If the driver advertises NL80211_EXT_FEATURE_SCAN_FREQ_KHZ userspace can omit NL80211_ATTR_SCAN_FREQUENCIES in favor of an NL80211_ATTR_SCAN_FREQ_KHZ. To get scan results in KHz userspace must also set the NL80211_SCAN_FLAG_FREQ_KHZ. This lets nl80211 remain compatible with older userspaces while not requring and sending redundant (and potentially incorrect) scan frequency sets. Signed-off-by: Thomas Pedersen <thomas@adapt-ip.com> Link: https://lore.kernel.org/r/20200430172554.18383-4-thomas@adapt-ip.com [use just nla_nest_start() (not _noflag) for NL80211_ATTR_SCAN_FREQ_KHZ] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
generated by cgit v1.2.3 (git 2.39.0) at 2025-01-03 10:03:46 +0300