- 26 Apr, 2019 34 commits
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Rajkumar Manoharan authored
The requirement for mesh link metric refreshing, is that from one mesh point we be able to send some data frames to other mesh points which are not currently selected as a primary traffic path, but which are only 1 hop away. The absence of the primary path to the chosen node makes it necessary to apply some form of marking on a chosen packet stream so that the packets can be properly steered to the selected node for testing, and not by the regular mesh path lookup. Tested-by:
Pradeep Kumar Chitrapu <pradeepc@codeaurora.org> Signed-off-by:
Rajkumar Manoharan <rmanohar@codeaurora.org> Signed-off-by:
Johannes Berg <johannes.berg@intel.com>
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Rajkumar Manoharan authored
Allows setting of control flags of skb cb - if needed - when calling ieee80211_subif_start_xmit(). Tested-by:
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Rajkumar Manoharan authored
Adding support to allow mesh HWMP to measure link metrics on unexercised direct mesh path by sending some data frames to other mesh points which are not currently selected as a primary traffic path but only 1 hop away. The absence of the primary path to the chosen node makes it necessary to apply some form of marking on a chosen packet stream so that the packets can be properly steered to the selected node for testing, and not by the regular mesh path lookup. Tested-by:
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Alexander Wetzel authored
Mac80211 SW crypto handles replacing PTK keys correctly. Don't trigger needless warnings or workarounds when the driver can only use the known good SW crypto provided by mac80211. Signed-off-by:
Alexander Wetzel <alexander@wetzel-home.de> Signed-off-by:
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Alexander Wetzel authored
Allow Extended Key ID to be used with hwsim. Hwsim can only communicate with other hwsim cards, allowing it to bypass creation of A-MPDUs in the first place. Mixing keyIDs in an A-MPDU is therefore impossible and can never cause interoperability issues with other cards. Signed-off-by:
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Luca Coelho authored
We are copying one entire structure to another of the same type in nl80211_notify_radar_detection, so it's simpler and safer to do a struct assignment instead of memcpy(). Signed-off-by:
Luca Coelho <luciano.coelho@intel.com> Signed-off-by:
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Alexander Wetzel authored
Only enable Extended Key ID support for drivers which are not supporting crypto offload and also do not support A-MPDU. While any driver using SW crypto from mac80211 is generally able to also support Extended Key ID these drivers are likely to mix keyIDs in AMPDUs when rekeying. According to IEEE 802.11-2016 "9.7.3 A-MPDU contents" this is not allowed. Signed-off-by:
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Dan Carpenter authored
The cfg80211_merge_profile() and ieee802_11_find_bssid_profile() are a bit cleaner if we just pass the merged_ie pointer instead of a pointer to the pointer. This isn't a functional change, it's just a clean up. Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
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Ashok Raj Nagarajan authored
This patch introduce a new driver callback drv_sta_set_txpwr. This API will copy the transmit power value passed from user space and call the driver callback to set the tx power for the station. Co-developed-by:
Balaji Pothunoori <bpothuno@codeaurora.org> Signed-off-by:
Ashok Raj Nagarajan <arnagara@codeaurora.org> Signed-off-by:
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Ashok Raj Nagarajan authored
This patch adds support to set transmit power setting type and transmit power level attributes to NL80211_CMD_SET_STATION in order to facilitate adjusting the transmit power level of a station associated to the AP. The added attributes allow selection of automatic and limited transmit power level, with the level defined in dBm format. Co-developed-by:
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Johannes Berg authored
There's no need to allocate than one queue in the iTXQs case now that we no longer use ndo_select_queue to assign the AC. Signed-off-by: -
Gustavo A. R. Silva authored
One of the more common cases of allocation size calculations is finding the size of a structure that has a zero-sized array at the end, along with memory for some number of elements for that array. For example: struct foo { int stuff; struct boo entry[]; }; size = sizeof(struct foo) + count * sizeof(struct boo); instance = kzalloc(size, GFP_KERNEL) Instead of leaving these open-coded and prone to type mistakes, we can now use the new struct_size() helper: instance = kzalloc(struct_size(instance, entry, count), GFP_KERNEL) Notice that, in this case, variable size_of_regd is not necessary, hence it is removed. This code was detected with the help of Coccinelle. Signed-off-by:Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by:
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Gustavo A. R. Silva authored
One of the more common cases of allocation size calculations is finding the size of a structure that has a zero-sized array at the end, along with memory for some number of elements for that array. For example: struct foo { int stuff; struct boo entry[]; }; size = sizeof(struct foo) + count * sizeof(struct boo); instance = kzalloc(size, GFP_KERNEL) Instead of leaving these open-coded and prone to type mistakes, we can now use the new struct_size() helper: instance = kzalloc(struct_size(instance, entry, count), GFP_KERNEL) Notice that, in this case, variable size_of_regd is not necessary, hence it is removed. This code was detected with the help of Coccinelle. Signed-off-by: -
Julius Niedworok authored
At Technical University of Munich we use MAC 802.11 TX status frames to perform several measurements in MAC 802.11 setups. With ath based drivers this was possible until commit d94a461d ("ath9k: use ieee80211_tx_status_noskb where possible") as the driver ignored the IEEE80211_TX_CTL_REQ_TX_STATUS flag and always delivered tx_status frames. Since that commit, this behavior was changed and the driver now adheres to IEEE80211_TX_CTL_REQ_TX_STATUS. Due to performance reasons, IEEE80211_TX_CTL_REQ_TX_STATUS is not set for data frames from interfaces in managed mode. Hence, frames that are sent from a managed mode interface do never deliver tx_status frames. This remains true even if a monitor mode interface (the measurement interface) is added to the same ieee80211 physical device. Thus, there is no possibility for receiving tx_status frames for frames sent on an interface in managed mode, if the driver adheres to IEEE80211_TX_CTL_REQ_TX_STATUS. In order to force delivery of tx_status frames for research and debugging purposes, implement a debugfs option force_tx_status for ieee80211 physical devices. When this option is set for a physical device, IEEE80211_TX_CTL_REQ_TX_STATUS is enabled in all packets sent from that device. This option can be set via /sys/kernel/debug/ieee80211/<dev>/force_tx_status. The default is disabled. Co-developed-by:
Charlie Groh <ga58taw@mytum.de> Signed-off-by:
Julius Niedworok <julius.n@gmx.net> Signed-off-by:
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Colin Ian King authored
The zero check on variable changed is redundant as it must be between 1 and 3 at the end of the proceeding if statement block. Remove the redundant check. Signed-off-by:
Colin Ian King <colin.king@canonical.com> Signed-off-by:
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Sergey Matyukevich authored
FullMAC STAs have no way to update bss channel after CSA channel switch completion. As a result, user-space tools may provide inconsistent channel info. For instance, consider the following two commands: $ sudo iw dev wlan0 link $ sudo iw dev wlan0 info The latter command gets channel info from the hardware, so most probably its output will be correct. However the former command gets channel info from scan cache, so its output will contain outdated channel info. In fact, current bss channel info will not be updated until the next [re-]connect. Note that mac80211 STAs have a workaround for this, but it requires access to internal cfg80211 data, see ieee80211_chswitch_work: /* XXX: shouldn't really modify cfg80211-owned data! */ ifmgd->associated->channel = sdata->csa_chandef.chan; This patch suggests to convert mac80211 workaround into cfg80211 behavior and to update current bss channel in cfg80211_ch_switch_notify. Signed-off-by:
Sergey Matyukevich <sergey.matyukevich.os@quantenna.com> Signed-off-by:
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Felix Fietkau authored
A per-group shift was added to reduce the size of the per-rate transmit duration field to u16 without sacrificing a lot of precision This patch changes the macros to automatically calculate the best value for this shift based on the lowest rate within the group. This simplifies adding more groups and slightly improves accuracy for some of the existing groups. Signed-off-by:
Felix Fietkau <nbd@nbd.name> Signed-off-by:
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Felix Fietkau authored
This is needed for the upcoming driver for MT7615 4x4 802.11ac chipsets Signed-off-by:
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Felix Fietkau authored
When using iTXQ, the network stack does not need the real queue number, since mac80211 is using its internal queues anyway. In that case we can defer selecting the queue and remove a redundant station lookup in the tx path to save some CPU cycles. Signed-off-by:
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Alexander Wetzel authored
Add support for Extended Key ID as defined in IEEE 802.11-2016. - Implement the nl80211 API for Extended Key ID - Extend mac80211 API to allow drivers to support Extended Key ID - Enable Extended Key ID by default for drivers only supporting SW crypto (e.g. mac80211_hwsim) - Allow unicast Tx usage to be supressed (IEEE80211_KEY_FLAG_NO_AUTO_TX) - Select the decryption key based on the MPDU keyid - Enforce existing assumptions in the code that rekeys don't change the cipher Signed-off-by:
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Alexander Wetzel authored
Add support for IEEE 802.11-2016 "Extended Key ID for Individually Addressed Frames". Extend cfg80211 and nl80211 to allow pairwise keys to be installed for Rx only, enable Tx separately and allow Key ID 1 for pairwise keys. Signed-off-by:
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Alexander Wetzel authored
Optimize/cleanup the delay tailroom checks and adds one missing tailroom update. Signed-off-by:
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Felix Fietkau authored
When using iTXQ, tx sequence number allocation and statistics are run at dequeue time. Because of that, it is safe to enable NETIF_F_LLTX, which allows tx handlers to run on multiple CPUs in parallel. Signed-off-by:
Toke Høiland-Jørgensen <toke@redhat.com> Signed-off-by:
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Felix Fietkau authored
Reduces lock contention on enqueue/dequeue of iTXQ packets Signed-off-by:
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Felix Fietkau authored
Reduces lock contention on enqueue/dequeue of iTXQ packets Signed-off-by:
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Felix Fietkau authored
The callers of these functions are all within RCU locked sections Signed-off-by:
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Liad Kaufman authored
Update the out-dated comments as well, and have them point to the correct sections in the D4.0 spec. Signed-off-by:
Liad Kaufman <liad.kaufman@intel.com> Signed-off-by:
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Sara Sharon authored
Since an element is limited to 255 octets, a profile may be split split to several elements. Support the split as defined in the 11ax draft 3. Signed-off-by:
Sara Sharon <sara.sharon@intel.com> Signed-off-by:
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Sara Sharon authored
Since an element is limited to 255 octets, a profile may be split split to several elements. Support the split as defined in the 11ax draft 3. Detect legacy split and print a net-rate limited warning, since there is no ROI in supporting this probably non-existent split. Signed-off-by:
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Sara Sharon authored
Subelement profile may specify element IDs it doesn't inherit from the management frame. Support it. Signed-off-by:
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Sara Sharon authored
Subelement profile may specify element IDs it doesn't inherit from the management frame. Support it. Signed-off-by:
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Sara Sharon authored
When creating the IEs for the nontransmitted BSS, the index element is skipped. However, we need to get DTIM values from it, so don't skip it. Signed-off-by:
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Avraham Stern authored
P2P device interface type was not indicated in the supported interface types even when hwsim was configured with p2p device support. Fix it. Signed-off-by:
Avraham Stern <avraham.stern@intel.com> Signed-off-by:
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Shaul Triebitz authored
The iwlwifi driver creates one rule per channel, thus it needs more rules than normal. To solve this, increase NL80211_MAX_SUPP_REG_RULES so iwlwifi can also fit UHB (ultra high band) channels. Signed-off-by:
Shaul Triebitz <shaul.triebitz@intel.com> Signed-off-by:
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- 08 Apr, 2019 6 commits
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Sunil Dutt authored
This interface allows the host driver to offload OWE processing to user space. This intends to support OWE (Opportunistic Wireless Encryption) AKM by the drivers that implement SME but rely on the user space for the cryptographic/OWE processing in AP mode. Such drivers are not capable of processing/deriving the DH IE. A new NL80211 command - NL80211_CMD_UPDATE_OWE_INFO is introduced to send the request/event between the host driver and user space. Driver shall provide the OWE info (MAC address and DH IE) of the peer to user space for cryptographic processing of the DH IE through the event. Accordingly, the user space shall update the OWE info/DH IE to the driver. Following is the sequence in AP mode for OWE authentication. Driver passes the OWE info obtained from the peer in the Association Request to the user space through the event cfg80211_update_owe_info_event. User space shall process the OWE info received and generate new OWE info. This OWE info is passed to the driver through NL80211_CMD_UPDATE_OWE_INFO request. Driver eventually uses this OWE info to send the Association Response to the peer. This OWE info in the command interface carries the IEs that include PMKID of the peer if the PMKSA is still valid or an updated DH IE for generating a new PMKSA with the peer. Signed-off-by:
Liangwei Dong <liangwei@codeaurora.org> Signed-off-by:
Sunil Dutt <usdutt@codeaurora.org> Signed-off-by:
Srinivas Dasari <dasaris@codeaurora.org> [remove policy initialization - no longer exists] Signed-off-by:
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Narayanraddi Masti authored
Add support for mesh airtime link metric attribute NL80211_STA_INFO_AIRTIME_LINK_METRIC. Signed-off-by:
Narayanraddi Masti <team.nmasti@gmail.com> Signed-off-by:
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vamsi krishna authored
This commit adds the support to specify the RSSI thresholds per band for each match set. This enhances the current behavior which specifies a single rssi_threshold across all the bands by introducing the rssi_threshold_per_band. These per band rssi thresholds are referred through NL80211_BAND_* (enum nl80211_band) variables as attribute types. Such attributes/values per each band are nested through NL80211_ATTR_SCHED_SCAN_MIN_RSSI. These band specific rssi thresholds shall take precedence over the current rssi_thold per match set. Drivers indicate this support through %NL80211_EXT_FEATURE_SCHED_SCAN_BAND_SPECIFIC_RSSI_THOLD. These per band rssi attributes/values does not specify "default RSSI filter" as done by NL80211_SCHED_SCAN_MATCH_ATTR_RSSI to stay backward compatible. That said, these per band rssi values have to be specified for the corresponding matchset. Signed-off-by:
vamsi krishna <vamsin@codeaurora.org> Signed-off-by:
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Johannes Berg authored
The sched scan code here is really deep - avoid one level of indentation by short-circuiting the loop instead of putting everything into the if block. Signed-off-by: -
Vlad Buslov authored
John reports: Recent refactoring of fl_change aims to use the classifier spinlock to avoid the need for rtnl lock. In doing so, the fl_hw_replace_filer() function was moved to before the lock is taken. This can create problems for drivers if duplicate filters are created (commmon in ovs tc offload due to filters being triggered by user-space matches). Drivers registered for such filters will now receive multiple copies of the same rule, each with a different cookie value. This means that the drivers would need to do a full match field lookup to determine duplicates, repeating work that will happen in flower __fl_lookup(). Currently, drivers do not expect to receive duplicate filters. To fix this, verify that filter with same key is not present in flower classifier hash table and insert the new filter to the flower hash table before offloading it to hardware. Implement helper function fl_ht_insert_unique() to atomically verify/insert a filter. This change makes filter visible to fast path at the beginning of fl_change() function, which means it can no longer be freed directly in case of error. Refactor fl_change() error handling code to deallocate the filter with rcu timeout. Fixes: 620da486 ("net: sched: flower: refactor fl_change") Reported-by:
John Hurley <john.hurley@netronome.com> Signed-off-by:
Vlad Buslov <vladbu@mellanox.com> Acked-by:
Jiri Pirko <jiri@mellanox.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
NeilBrown says: ==================== Convert rhashtable to use bitlocks This series converts rhashtable to use a per-bucket bitlock rather than a separate array of spinlocks. This: reduces memory usage results in slightly fewer memory accesses slightly improves parallelism makes a configuration option unnecessary The main change from previous version is to use a distinct type for the pointer in the bucket which has a bit-lock in it. This helped find two places where rht_ptr() was missed, one in rhashtable_free_and_destroy() in print_ht in the test code. ==================== Signed-off-by:
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