Commit Graph

192 Commits

Author SHA1 Message Date
Felix Fietkau
5b8f188c0f Revert "mac80211: rework interface setup, fix race condition"
This reverts commit b7f9742da8.
There are several reports of regressions with this commit. Will be added
back once I've figured out and fixed the cause

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2024-01-13 11:19:34 +01:00
Felix Fietkau
b7f9742da8 mac80211: rework interface setup, fix race condition
Only tell netifd about vifs when the setup is complete and hostapd +
wpa_supplicant have been notified

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2024-01-11 10:40:43 +01:00
Felix Fietkau
d5a1de17ad mac80211.sh: fix deadlock on configuring multiple PHYs simultaneously
When hitting a timing window where ubus configuration calls are hitting hostapd
and wpa_supplicant simultaneously, they can deadlock waiting for each other.
Fix this by using a lock around the ubus calls.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2024-01-11 10:40:43 +01:00
Felix Fietkau
80e4e2285f mac80211: do not emit VHT160 capabilities if channel width is less than 160 MHz
Fixes compatibility issues with VHT160 capable clients

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2024-01-09 14:36:46 +01:00
Rany Hany
6ca8752a9c
mac80211: add missing newline for "min_tx_power"
This prevents min_tx_power from functioning properly in some circumstances.
Add the missing newline.

Signed-off-by: Rany Hany <rany_hany@riseup.net>
2024-01-05 16:33:52 +01:00
Christian Marangi
1070fbce6e
mac80211: fix not set noscan option for wpa_supplicant
noscan option was changed to hostapd_noscan but the entry in
wpa_supplicant was never updated resulting in the noscan option actually
never set.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2023-11-09 15:58:34 +01:00
Felix Fietkau
02b4dc93b6 mac80211: only add the mbssid option to the config when set
This avoids errors when the feature is not built into the hostapd binary

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2023-09-13 17:38:25 +02:00
Felix Fietkau
20c667cc88 hostapd: rework reload support and MAC address handling
MAC address and interface name assigned by mac80211.sh depend on the order in
which interfaces are brought up. This order changes when interfaces get added
or removed, which can cause unnecessary reload churn.

One part of the fix it making MAC address allocation more dynamic in both
wpa_supplicant and hostapd, by ignoring the provided MAC address using
the next available one, whenever the config does not explicitly specify one.

The other part is making use of support for renaming netdevs at runtime and
preserving the MAC address for renamed netdevs.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2023-09-13 12:37:44 +02:00
Felix Fietkau
651cb1422e mac80211: add multiple BSSID support
This advertises multiple BSS interfaces in a single set of beacons

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2023-09-13 12:37:44 +02:00
Felix Fietkau
da55eba968 mac80211: add support for configuring number of globally allocated MAC addresses
When a device has more than one reserved mac address, they can be used for
virtual interfaces without the local bit in the first byte

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2023-09-13 12:37:44 +02:00
Felix Fietkau
13c1080a3f hostapd: move mac address allocation from mac80211.sh to wdev.uc
Preparation for upcoming hostapd reload improvements

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2023-09-13 12:37:44 +02:00
Felix Fietkau
4a0b1af905 hostapd: allow adding initial AP without breaking STA interface connection
When switching from a STA-only configuration to AP+STA on the same phy, the
STA was previously restarted in order to notify hostapd of the new frequency,
which might not match the AP configuration.
Fix the STA restart by querying the operating frequency from within hostapd
when bringing up the AP.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2023-09-03 09:51:28 +02:00
Felix Fietkau
99a98b3024 mac80211: remove non-upstream antenna gain configuration patch
It seems that this was not functioning properly and was likely completely unused.
Keeping this out of tree also introduced some annoying churn when updating, because
of the iw nl80211.h sync patch.
If this is needed, it will be reintroduced when/if it is added upstream

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2023-08-30 12:28:30 +02:00
Felix Fietkau
ed0ad7759c hostapd: remove config_id parameters from hostapd.conf
They are no longer used

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2023-08-10 22:27:59 +02:00
Felix Fietkau
4bd9f2eda5 mac80211: fix setting mesh parameters after hostapd reload change
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2023-08-09 10:50:53 +02:00
Felix Fietkau
afa229038c mac80211: fix applying tx/rx antenna changes afer hostapd reload change
Tear down all interfaces if the antenna settings change, so that the
capabilities can be recalculated properly

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2023-08-08 20:12:13 +02:00
Felix Fietkau
e56c5f7b27 hostapd: add ucode support, use ucode for the main ubus object
This implements vastly improved dynamic configuration reload support.
It can handle configuration changes on individual wifi interfaces, as well
as adding/removing interfaces.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2023-08-01 10:08:03 +02:00
David Bauer
a63430eac3 mac80211: use 802.11ax iw modes
This adds missing HE modes to mac80211_prepare_ht_modes.

Previously mesh without wpa_supplicant would be initialized with 802.11g
/NO-HT only, as this method did not parse channel bandwidth for HE
operation.

Signed-off-by: David Bauer <mail@david-bauer.net>
2023-01-28 13:53:39 +01:00
Felix Fietkau
133a1e2f37 mac80211: work around a race condition on detecting a phy while bringing it up
When reloading modules and running wifi, a phy can sometimes be renamed
while in the middle of a hotplug call that tries to detect new phys
This can lead to bogus wifi-device sections being created

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-12-16 14:32:47 +01:00
Felix Fietkau
a797f0e82a hostapd: use wpa_supplicant for unencrypted mesh connections
It's more reliable than using iw

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-12-10 12:38:46 +01:00
Felix Fietkau
a7ca1b2314 mac80211: use board.json provided phy names in generated default config
The phy will be automatically renamed on setup

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-10-14 13:13:11 +02:00
Felix Fietkau
50a03decdf mac80211: change the default config for a renamed wiphy
use option phy to reference the device instead of path/macaddr

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-10-14 13:13:01 +02:00
Felix Fietkau
db9c4a066a mac80211: fix detecting highest radio* config section index
Deal with gaps by iterating over existing sections instead of counting

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-10-14 13:12:49 +02:00
Felix Fietkau
4d323303e7 mac80211: rename phy according to board.json entries on bringup
This allows phy names specified in board.json to be used directly instead of
the path option

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-10-14 13:12:42 +02:00
Felix Fietkau
6603748e0c mac80211: change default ifname to <phy>-<type><index>
This makes it clear, which phy a wlan device belongs to and also helps with
telling them apart by including the mode in the ifname.
Preparation for automatically renaming PHYs

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-10-14 13:12:36 +02:00
Felix Fietkau
da6b77215b mac80211: fix typo in netifd script
Reported-by: Chad Monroe <chad.monroe@smartrg.com>
Fixes: 590eaaeed5 ("mac80211: fix issues in HE capabilities")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-10-13 21:50:34 +02:00
Felix Fietkau
590eaaeed5 mac80211: fix issues in HE capabilities
Enable HE SU beamformee by default
Fix spatial reuse configuration:
- he_spr_sr_control is not a bool for enabling, it contains multiple bits
  which disable features that should be disabled by default
- one of the features (PSR) can be enabled through he_spr_psr_enabled
- add option to disable bss color / spatial reuse

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-10-13 13:45:42 +02:00
Alberto Martinez-Alvarez
b02b95d1b0 mac80211: fix parameter reading for AC_BE tx bursting
The "tx_burst" option which should control the value was
expecting more of a list and hence tx_queue_data2_burst
value wasn't updated.

Yes, it would make sense to have a list for this, the
existing  code only updates tx_queue_data2_burst and
not the other tx_queue_data[0134]_burst values.

Signed-off-by: Alberto Martinez-Alvarez <amteza@gmail.com>
(formatted commit message, wrote extra information into commit,
moved tx_burst to existing json_get_vars)
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2022-09-24 17:41:38 +02:00
Sultan Alsawaf
f338f76a66 mac80211: parse the correct set of HE capabilities for AP mode
It is common for 802.11ax NICs to support more than just AP mode, which
results in there being a distinct set of HE capabilities for each mode. As
(bad) luck would have it, iw prints out info for each HE mode in sequential
order according to `enum nl80211_iftype`, and AP mode isn't always first.

As a result, the wrong set of HE capabilities can be parsed if an AP NIC
supports station (managed) mode or any other mode preceding AP mode, since
only the first set of HE capabilities printed by iw is parsed from awk's
output.

This has a noticeable impact on beamforming for example, since managed mode
usually doesn't have beamformer capabilities enabled, while AP mode does.
Hostapd won't be set up with the configs to enable beamformer capabilities
in this scenario, causing hostapd to disable beamforming to HE stations
even when it's supported by the AP.

Always parse the correct set of HE capabilities for AP mode to fix this.
This is achieved by trimming all of iw's output prior to the AP mode
capabilities, which ensures that the first set of HE capabilities are
always for AP mode.

Signed-off-by: Sultan Alsawaf <sultan@kerneltoast.com>
2022-08-20 12:33:50 +02:00
Manas Sambhus
1ea563ae13 base-files: wifi: add random MAC support for wifi-iface
Add support for randomly generating a MAC address for a wifi-iface
instance by setting `macaddr` to `random`
When set to `random`, a new locally administered unicast MAC address
is generated and assigned to the iface everytime it is (re-)configured

Signed-off-by: Manas Sambhus <manas.sambhus+github@gmail.com>
2022-08-11 12:56:15 +02:00
Stijn Tintel
d2d5aabdbb hostapd: introduce min_tx_power option
Introduce a new option min_tx_power to configure the minimum permitted
max TX power (in dBm) for ACS and DFS channel selection.

Imagine the following regulatory rules:
  * 5180 MHz [36] (21.0 dBm)
  * 5200 MHz [40] (21.0 dBm)
  * 5220 MHz [44] (21.0 dBm)
  * 5240 MHz [48] (21.0 dBm)
  * 5260 MHz [52] (20.0 dBm) (radar detection)
  * 5280 MHz [56] (20.0 dBm) (radar detection)
  * 5300 MHz [60] (20.0 dBm) (radar detection)
  * 5320 MHz [64] (20.0 dBm) (radar detection)
  * 5500 MHz [100] (21.0 dBm) (radar detection)
  * 5520 MHz [104] (21.0 dBm) (radar detection)
  * 5540 MHz [108] (21.0 dBm) (radar detection)
  * 5560 MHz [112] (21.0 dBm) (radar detection)
  * 5580 MHz [116] (21.0 dBm) (radar detection)
  * 5600 MHz [120] (21.0 dBm) (radar detection)
  * 5620 MHz [124] (21.0 dBm) (radar detection)
  * 5640 MHz [128] (21.0 dBm) (radar detection)
  * 5660 MHz [132] (21.0 dBm) (radar detection)
  * 5680 MHz [136] (21.0 dBm) (radar detection)
  * 5700 MHz [140] (21.0 dBm) (radar detection)
  * 5720 MHz [144] (13.0 dBm) (radar detection)
  * 5745 MHz [149] (13.0 dBm)
  * 5765 MHz [153] (13.0 dBm)
  * 5785 MHz [157] (13.0 dBm)
  * 5805 MHz [161] (13.0 dBm)
  * 5825 MHz [165] (13.0 dBm)
  * 5845 MHz [169] (13.0 dBm)
  * 5865 MHz [173] (13.0 dBm)

When ACS or DFS end up selecting channel 144 or higher, some clients
might no longer be able to communicate with the AP due to the TX power
being limited to 13 dBm. Setting min_tx_power to 20 will result in
hostapd not considering these channels during ACS or after a DFS event.

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
Acked-by: David Bauer <mail@david-bauer.net>
2022-06-28 03:23:51 +03:00
Stijn Tintel
f2982bcc89 hostapd: introduce background_radar option
Introduce a new option background_radar to toggle hostapd's background
radar feature. Enabling this allows DFS CAC to run on dedicated radio RF
chains while the radio(s) are otherwise running normal AP activities on
other channels.

As OpenWrt configures hostapd to use a channel list even when a single
channel is configured, using this feature requires a list of channels in
/etc/config/wireless. Alternatively, channel can be set to auto.

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
Acked-by: David Bauer <mail@david-bauer.net>
2022-06-28 03:23:51 +03:00
David Bauer
6c152ce5b0 hostapd: randomize default BSS color
In case no specific BSS color is configured, set it to a random value.

Signed-off-by: David Bauer <mail@david-bauer.net>
Tested-by: Stijn Tintel <stijn@linux-ipv6.be>
2022-06-08 23:16:12 +02:00
Felix Fietkau
e2c4998f6d mac80211: set beamformer/beamformee number of antennas in VHT caps
Without this, beamforming is probably not working

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2021-11-22 13:04:34 +01:00
Bastian Bittorf
ea5fce3f46 mac80211: fix IBSS/adhoc mode for brcmfmac
On systems using brmcfmac (e.g. Raspberry Pi Zero W) without this fix,
the final setup-call:
iw dev wlan0 ibss join ...

fails with returncode 161 and message:
"command failed: Not supported (-95)"

So this patch calls an explicit:
iw dev wlan0 set type ibss
just prior to the 'ibss join' command.

I have tested several ath9k and mt76xx devices
with different revisions: this patch does not harm.

please also apply to stable branch.

Signed-off-by: Bastian Bittorf <bb@npl.de>
2021-11-19 18:27:47 +00:00
Felix Fietkau
42dda0ed3e mac80211: allow retry of wifi setup if an iw interface add command fails
In some cases, spurious failures might be cleared by teardown and retry

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2021-09-30 11:33:37 +02:00
Felix Fietkau
a0d81ba0d5 mac80211: fix HT40 mode for 6G band
The channel offset used for VHT segment calculation was missing for HT

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2021-08-24 17:35:45 +02:00
Bob Cantor
3933e29d1b mac80211: print an error if wifi teardown fails
drv_mac80211_teardown fails silently if the device to be torn down is
not defined.  This commit prints an error message.

branches affected: trunk, 21.02

Signed-off-by: Bob Cantor <coxede6557@w3boats.com>
2021-06-28 17:24:11 +02:00
Bob Cantor
d515f6b6cd mac80211: always call wireless_set_data (FS#3784)
When wifi is turned off, drv_mac80211_teardown sometimes fails (silently)
because the device to be torn down is not defined.

This situation arises if drv_mac80211_setup was called twice when
wifi was turned on.

This commit ensures that the device to be torn down is always defined
in drv_mac80211_teardown.

Steps to reproduce:

1) Use /sbin/wifi to turn on wifi.
   uci set wireless.@wifi-iface[0].disabled=0
   uci set wireless.@wifi-device[0].disabled=0
   uci commit
   wifi

2) Use /sbin/wifi to turn off wifi.
   uci set wireless.@wifi-device[0].disabled=1
   uci commit
   wifi

3) Observe that wifi is still up.

branches affected: trunk, 21.02

Signed-off-by: Bob Cantor <coxede6557@w3boats.com>
2021-06-28 17:24:11 +02:00
Bob Cantor
a29ab3b79a mac80211: fix no_reload logic (FS#3902)
If drv_mac80211_setup is called twice with the same wifi configuration,
then the second call returns early with error HOSTAPD_START_FAILED.
(wifi works nevertheless, despite the fact that setup is incomplete.  But
"ubus call network.wireless status" erroneously reports that radio0 is down.)

The relevant part of drv_mac80211_setup is,

if [ "$no_reload" != "0" ]; then
        add_ap=1
        ubus wait_for hostapd
        local hostapd_res="$(ubus call hostapd config_add "{\"iface\":\"$primary_ap\", \"config\":\"${hostapd_conf_file}\"}")"
        ret="$?"
        [ "$ret" != 0 -o -z "$hostapd_res" ] && {
                wireless_setup_failed HOSTAPD_START_FAILED
                return
        }
        wireless_add_process "$(jsonfilter -s "$hostapd_res" -l 1 -e @.pid)" "/usr/sbin/hostapd" 1 1
fi

This commit sets no_reload = 0 during the second call of drv_mac80211_setup.

It is perhaps worth providing a way to reproduce the situation
where drv_mac80211_setup is called twice.

When /sbin/wifi is used to turn on wifi,
   uci set wireless.@wifi-iface[0].disabled=0
   uci set wireless.@wifi-device[0].disabled=0
   uci commit
   wifi

/sbin/wifi makes the following ubus calls,
   ubus call network reload
   ubus call network.wireless down
   ubus call network.wireless up

The first and third ubus calls both call drv_mac80211_setup,
while the second ubus call triggers wireless_device_setup_cancel.
So the call sequence becomes,

   drv_mac80211_setup
   wireless_device_setup_cancel
   drv_mac80211_setup

In contrast, when LuCI is used to turn on wifi only a single call
is made to drv_mac80211_setup.

branches affected: trunk, 21.02

Signed-off-by: Bob Cantor <coxede6557@w3boats.com>
2021-06-28 17:24:11 +02:00
Felix Fietkau
49ef4dbee5 mac80211: fix processing HE capabilities (FS#3871)
Use the right argument to fix setting unsupported capabilities to 0

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2021-06-17 12:40:43 +02:00
Felix Fietkau
e1d57d4d43 mac80211: rely on iwinfo for phy->path and path->phy lookups
This avoids inconsistencies from having multiple implementations do the same thing

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2021-06-10 10:15:39 +02:00
Felix Fietkau
2cd1a10829 mac80211: fix typo
Remove stray parenthesis

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2021-06-03 05:38:59 +02:00
Felix Fietkau
42a99b18ff mac80211: do not enable VHT in the default config on 2.4 GHz
Some drivers advertise it, but it's not supported at the moment

Reported-by: John Thomson <git@johnthomson.fastmail.com.au>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2021-06-02 07:46:21 +02:00
Felix Fietkau
3518b793a2 mac80211: fix detecting VHT capabilities when generating the default config
The colon does not directly follow the "VHT Capabilities" string

Reported-by: John Thomson <git@johnthomson.fastmail.com.au>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2021-06-02 07:46:21 +02:00
Felix Fietkau
fbd6f099f5 mac80211: add more HE capabilities
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2021-05-26 11:48:15 +02:00
Felix Fietkau
8d79915327 mac80211: fix center freq selection for 6 GHz
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2021-05-26 11:48:14 +02:00
Felix Fietkau
c8bcdd5619 mac80211: set hostapd op_class for 6 GHz
This is needed to disambiguate it from 5 GHz channels

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2021-05-26 11:48:14 +02:00
Felix Fietkau
8504212f65 mac80211: rework default config script
Emit the new band option instead of hwmode
Support 6 GHz band and HE options

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2021-05-26 11:48:14 +02:00
Felix Fietkau
8b8c1cb09b mac80211: make use of the new 'band' option
Use it to look up frequencies only in the configured band to better deal
with channel number overlap

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2021-05-26 11:48:14 +02:00