We have mgd_prepare_tx(), but sometimes drivers may want/need
to take action when the exchange finishes, whether successfully
or not.
Add a notification to the driver on completion, i.e. call the
new method mgd_complete_tx().
To unify the two scenarios, and to add more information, make
both of them take a struct that has the duration (prepare only),
subtype (both) and success (complete only).
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210618133832.5d94e78f6230.I6dc979606b6f28701b740d7aab725f7853a5a155@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
If HE/6GHz is available (thus we consider dot11HE6GOptionImplemented
to be true), then always include the corresponding capability in the
probe request as required by the spec.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210618133832.25ee4a54a7d0.I8cebd799c85524c8123a11941a104dbdefc03762@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
To discover a hidden AP on the 6GHz band, the probe request
sent to the AP needs to include the AP's SSID, as some APs
would not respond with a probe response based only on short
SSID match.
To support hidden AP discovery over the 6GHz band,
when constructing the specific 6GHz band scan also include
SSIDs that were part of the original scan request, so these
can be used in the probe requests transmitted during scan.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210618133832.218df9d3203c.Ice0f7a2f6a65f1f9710b7898591481baeefaf490@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
When sending an association request, add any vendor specific
capabilities at the end of the frame. This way, mac80211 is
still completely in charge of building the frame, but drivers
can determine what should be added depending on the band and
interface type.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210618133832.80d716d69a5f.I28097ff19be6b22aebdc33a72795d2662755d41f@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
There may be cases where vendor-specific elements need to be
used over the air. Rather than have driver or firmware add
them and possibly cause problems that way, add them to the
iftype-data band capabilities. This way we can advertise to
userspace first, and use them in mac80211 next.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210618133832.e8c4f0347276.Iee5964682b3e9ec51fc1cd57a7c62383eaf6ddd7@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
We used to set regulatory info before the registration of
the device and then the regulatory info didn't get set, because
the device isn't registered so there isn't a device to set the
regulatory info for. So set the regulatory info after the device
registration.
Call reg_process_self_managed_hints() once again after the device
registration because it does nothing before it.
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210618133832.c96eadcffe80.I86799c2c866b5610b4cf91115c21d8ceb525c5aa@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
While building probe requests, only enable HE capability if
there are actually any channels in the band with HE enabled,
otherwise we're not really capable. We're doing the same in
association requests, so doing it here makes it consistent.
This also makes HE not appear available if it isn't due to
regulatory constraints.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210618133832.b5513f2af335.Ic01862678712ae4238cea43ad2185928865efad2@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
There's a WARN_ON here but it says nothing, and the later
dump of the regdomain aren't usually printed. As a first
step, include the regdomain code in the WARN_ON message,
just like in other similar instances.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210618133832.853ffdd6c62b.I63e37b2ab184ee3653686e4df4dd23eb303687d2@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
All uses of ieee80211_get_he_sta_cap() were actually wrong,
in net/mac80211/mlme.c they were wrong because that code is
also used for P2P (which is a different interface type), in
net/mac80211/main.c that should check all interface types.
Fix all that.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210618133832.ede114bc8b46.Ibcd9a5d98430e936344eb6d242ef8a65c2f59b74@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
If the AP changes capability/bandwidth in some fashion, the
message might be somewhat misleading and we don't know what
really changed. Modify the message to speak about "caps/bw"
instead of just "bandwidth", and print out the flags.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210618133832.dc22c48985fa.I4bf5fbc17ec783c21d4b50c8c35b1de390896ccd@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The following race was possible:
1. The device driver requests HW restart.
2. A scan is requested from user space and is propagated
to the driver. During this flow HW_SCANNING flag is set.
3. The thread that handles the HW restart is scheduled,
and before starting the actual reconfiguration it
checks that HW_SCANNING is not set. The flow does so
without acquiring any lock, and thus the WARN fires.
Fix this by checking that HW_SCANNING is on only after RTNL is
acquired, i.e., user space scan request handling is no longer
in transit.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210618133832.8238ab3e19ab.I2693c581c70251472b4f9089e37e06fb2c18268f@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
chanctx represents the current phy configuration and rate scale uses
it for achieving max throughput, so if phy changes bandwidth to narrow
bandwidth, RC should be _first_ updated to avoid using the wider bandwidth
before updating the phy, and vice versa.
We assume in the patch that station interface is always updated before
updating phy context by calling ieee80211_vif_update_chandef.
Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210618133832.fc4e24496aa2.Ic40ea947c2f65739ea4b5fe3babd0a544240ced6@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
If, for some strange reason, ieee80211_wep_encrypt() fails in
ieee80211_send_auth() free the SKB instead of sending out the
useless frame, in addition to the warning. This can't really
happen since the SKB was freshly allocated.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210618133832.98f058d7a8b2.Ie605e6a10e72eae02f5734032826af48b85b6d11@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
ieee80211_mgd_assoc calls ieee80211_prep_connection which
might call ieee80211_prep_channel and set smps_mode to OFF.
That will override the previous setting of smps_mode in
ieee80211_mgd_assoc and HT SMPS will be set to "disabled"
in the association request frame.
Move the setting of smps_mode in ieee80211_mgd_assoc to
after the call to ieee80211_prep_connection.
Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210618133832.d8e5cc4b527f.Icf3a67fffbdd8c408c0cadfe43f8f4cffdc90acb@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Sending nulldata packets is important for sw AP link probing and detecting
4-address mode links. The checks that dropped these packets were apparently
added to work around an iwlwifi firmware bug with multi-TID aggregation.
Fixes: 41cbb0f5a2 ("mac80211: add support for HE")
Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://lore.kernel.org/r/20210619101517.90806-1-nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Table 9-251—Supported VHT-MCS and NSS Set subfields, it has subfield VHT Extended
NSS BW Capable, its definition is:
Indicates whether the STA is capable of interpreting the Extended NSS BW
Support subfield of the VHT Capabilities Information field.
This patch is to add check for the subfield.
Signed-off-by: Wen Gong <wgong@codeaurora.org>
Link: https://lore.kernel.org/r/20210524033624.16993-1-wgong@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
offload_flags has been introduced to indicate encap status of each interface.
An interface can encap offload at runtime, or if it has some extra limitations
it can simply override the flags, so it's more flexible to check offload_flags
in Tx path.
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Link: https://lore.kernel.org/r/177785418cf407808bf3a44760302d0647076990.1623961575.git.ryder.lee@mediatek.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Make ieee80211_tx_h_rate_ctrl() get called on dequeue to improve
performance since it reduces the turnaround time for rate control.
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Link: https://lore.kernel.org/r/20210617163113.75815-2-nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This avoids calling back into tx handlers from within the rate control module.
Preparation for deferring rate control until tx dequeue
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://lore.kernel.org/r/20210617163113.75815-1-nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
If we have been keeping per-CPU statistics, consider them
regardless of USES_RSS, because we may not actually fill
those, for example in non-fast-RX cases when the connection
is not compatible with fast-RX. If we didn't fill them, the
additional data will be zero and not affect anything, and
if we did fill them then it's more correct to consider them.
This fixes an issue in mesh mode where some statistics are
not updated due to USES_RSS being set, but fast-RX isn't
used.
Reported-by: Thiraviyam Mariyappan <tmariyap@codeaurora.org>
Link: https://lore.kernel.org/r/20210610220814.13b35f5797c5.I511e9b33c5694e0d6cef4b6ae755c873d7c22124@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
In 2G band, a HE sta can only supports HT and HE, but not supports VHT.
In this case, default HE tx bitrate mask isn't filled, when we use iw to
set bitrates without any parameter.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://lore.kernel.org/r/20210609075944.51130-1-pkshih@realtek.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Use newly introduced helper function ieee80211_is_tx_data to check if
frame is a data frame. Takes into account that hardware encapsulation
can be enabled for a frame and therefore no ieee80211 header is present.
Signed-off-by: Philipp Borgers <borgers@mi.fu-berlin.de>
Link: https://lore.kernel.org/r/20210519122019.92359-4-borgers@mi.fu-berlin.de
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Data Frames with no ack flag set should be handled by the rate
controler. Make sure we reach the rate controler by returning early
from rate_control_send_low if the frame is a data frame with no ack
flag.
Signed-off-by: Philipp Borgers <borgers@mi.fu-berlin.de>
Link: https://lore.kernel.org/r/20210519122019.92359-3-borgers@mi.fu-berlin.de
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
We need to differentiate these frames since the ones we
currently put on the skb_queue_tdls_chsw have already
been converted to ethernet format, but now that we've
got a single place to enqueue to the sdata->skb_queue
this isn't hard. Just differentiate based on protocol
and adjust the code to queue the SKBs appropriately.
Link: https://lore.kernel.org/r/20210517230754.17034990abef.I5342f2183c0d246b18d36c511eb3b6be298a6572@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
QoS Data Frames that were sent with a No Ack policy should be ignored by
the minstrel statistics. There will never be an Ack for these frames so
there is no way to draw conclusions about the success of the transmission.
Signed-off-by: Philipp Borgers <borgers@mi.fu-berlin.de>
Link: https://lore.kernel.org/r/20210517120145.132814-1-borgers@mi.fu-berlin.de
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The "ap_info->tbtt_info_len" and "length" variables are the same value
but it is confusing how the names are mixed up. Let's use "length"
everywhere for consistency.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/YJaMNzZENkYFAYQX@mwanda
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Variable 'ret' is set to -ENODEV but this value is never read as it
is overwritten with a new value later on, hence it is a redundant
assignment and can be removed.
Clean up the following clang-analyzer warning:
net/mac80211/debugfs_netdev.c:60:2: warning: Value stored to 'ret' is
never read [clang-analyzer-deadcode.DeadStores]
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Link: https://lore.kernel.org/r/1619774483-116805-1-git-send-email-yang.lee@linux.alibaba.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Variable 'ps' is set to wdev->ps but this value is never read as it is
overwritten with a new value later on, hence it is a redundant
assignment and can be removed.
Cleans up the following clang-analyzer warning:
net/wireless/wext-compat.c:1170:7: warning: Value stored to 'ps' during
its initialization is never read [clang-analyzer-deadcode.DeadStores]
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Link: https://lore.kernel.org/r/1619603945-116891-1-git-send-email-yang.lee@linux.alibaba.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Fix the following out-of-bounds warning:
net/wireless/wext-spy.c:178:2: warning: 'memcpy' offset [25, 28] from the object at 'threshold' is out of the bounds of referenced subobject 'low' with type 'struct iw_quality' at offset 20 [-Warray-bounds]
The problem is that the original code is trying to copy data into a
couple of struct members adjacent to each other in a single call to
memcpy(). This causes a legitimate compiler warning because memcpy()
overruns the length of &threshold.low and &spydata->spy_thr_low. As
these are just a couple of struct members, fix this by using direct
assignments, instead of memcpy().
This helps with the ongoing efforts to globally enable -Warray-bounds
and get us closer to being able to tighten the FORTIFY_SOURCE routines
on memcpy().
Link: https://github.com/KSPP/linux/issues/109
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20210422200032.GA168995@embeddedor
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The current cleanup rbuf tries a bit too hard to avoid acquiring
the subflow socket lock. We may end-up delaying the needed ack,
or skip acking a blocked subflow.
Address the above extending the conditions used to trigger the cleanup
to reflect more closely what TCP does and invoking tcp_cleanup_rbuf()
on all the active subflows.
Note that we can't replicate the exact tests implemented in
tcp_cleanup_rbuf(), as MPTCP lacks some of the required info - e.g.
ping-pong mode.
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch added a new flag named deny_join_id0 in struct
mptcp_options_received. Set it when MP_CAPABLE with the flag
MPTCP_CAP_DENYJOIN_ID0 is received.
Also add a new flag remote_deny_join_id0 in struct mptcp_pm_data. When the
flag deny_join_id0 is set, set this remote_deny_join_id0 flag.
In mptcp_pm_create_subflow_or_signal_addr, if the remote_deny_join_id0 flag
is set, and the remote address id is zero, stop this connection.
Suggested-by: Florian Westphal <fw@strlen.de>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch defined a new flag MPTCP_CAP_DENY_JOIN_ID0 for the third bit,
labeled "C" of the MP_CAPABLE option.
Add a new flag allow_join_id0 in struct mptcp_out_options. If this flag is
set, send out the MP_CAPABLE option with the flag MPTCP_CAP_DENY_JOIN_ID0.
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch added a new sysctl, named allow_join_initial_addr_port, to
control whether allow peers to send join requests to the IP address and
port number used by the initial subflow.
Suggested-by: Florian Westphal <fw@strlen.de>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
