Commit Graph

162 Commits

Author SHA1 Message Date
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
David Bauer
8019c54d8a mac80211: fix incorrect parameter
he_mu_beamformer only accepts values of 0 and 1 according to the hostapd
documentation.

Signed-off-by: David Bauer <mail@david-bauer.net>
2021-02-01 00:48:37 +01:00
Daniel Golle
d9d6988434 mac80211: improve error handling when adding hostapd config
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2021-01-14 00:52:50 +00:00
Daniel Golle
cbd67dbdcd mac80211: use hostapd PID returned from config_add
Use PID returned from config_add instead of querying procd when adding
configuration to hostapd.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2021-01-10 19:18:29 +00:00
Gary Cooper
d140d18990 mac80211: add 802.11ad-support
This adds logic to properly populate defaults in /etc/config/wireless.

Signed-off-by: Gary Cooper <gaco@bitmessage.de>
2021-01-05 02:16:24 +00:00
Felix Fietkau
e1851720f1 hostapd: do not restart hostapd instance on wireless restarts
Add the flag that prevents netifd from killing hostapd/wpa_supplicant

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-12-31 14:26:00 +01:00
Paul Fertser
39c8bc4422 mac80211: fix MAC address allocations when local bit set on base addr
Testing with hwsim reveals two problems:

1. phyX/addresses has two addresses and mac80211_get_addr keeps
returning the last one when asked for more;

2. The base address has the local bit set and the operation unsets it.

Fix both.

Fixes: 866790fd82
Reported-by: Zero_Chaos
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
2020-12-22 18:59:10 +01:00
Sven Eckelmann
7ca9b82c38 mac80211: Fix wpa_supplicant config removal ubus call
If mac80211_setup_supplicant() is called with enabled=0 then it should just
destroy the interface and remove the configuration from wpa_supplicant. But
the ubus method call always returned

  Command failed: Method not found

because the actual name of the method is "config_remove".

Fixes: b5516603dd ("mac80211: more wifi reconf related fixes")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
[bump PKG_RELEASE]
Signed-off-by: David Bauer <mail@david-bauer.net>
2020-10-28 00:11:12 +01:00
David Bauer
daeda8a87e mac80211: pass phy name to hostapd_set_bss_options
hostapd_set_bss_options expects the PHY as second and the VIF as third
argument. However, only the VIF was passed as second argument without a
third argument at all.

This was never a problem, as both PHY and VIF were never accessed.
However, with FTM support the PHY is needed to determine the HW support
when configuring the BSS.

Signed-off-by: David Bauer <mail@david-bauer.net>
2020-10-28 00:08:49 +01:00
Felix Fietkau
cba4120768 mac80211: add support for specifying a per-device scan list
This is useful to bring up multiple client mode interfaces on a single
channel much faster without having to scan through a lot of channels

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-09-29 17:32:26 +02:00
Davide Fioravanti
cd36c0d2f0 mac80211: select the first available channel for 5GHz interfaces
Some 5GHz wifi interfaces, especially in Tri-band routers, can't use
channel 36. In these cases, the default configuration for 5GHz
interfaces, once enabled, doesn't work.

This patch selects the first non-disabled channel for 5GHz interfaces.

Signed-off-by: Davide Fioravanti <pantanastyle@gmail.com>
2020-09-20 17:52:25 +02:00
Felix Fietkau
acf1733496 mac80211: add preliminary support for enabling 802.11ax in config
No advanced features are configurable yet, just basic enabling of HE modes

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-09-04 15:49:35 +02:00
David Bauer
68bf5a9659 mac80211: don't kill wireless daemon on teardown
Don't kill the wireless daemon on teardown. hostapd as well as
wpa_supplicant are managed by procd which would detect the shutdown of
either process as a crash loop.

Signed-off-by: David Bauer <mail@david-bauer.net>
2020-07-31 19:52:03 +02:00
David Bauer
8b3e170526 hostapd: fix incorrect service name
When retrieving the PID for hostapd and wpa_supplicant via ubus the
wrong service name is currently used. This leads to the following error
in the log:

netifd: radio0 (1409): WARNING (wireless_add_process):
executable path /usr/sbin/wpad does not match process  path (/proc/exe)

Fixing the service name retrieves the correct PID and therefore the
warning won't occur.

Signed-off-by: David Bauer <mail@david-bauer.net>
2020-07-31 19:51:51 +02:00
David Bauer
cfd2f3bf6f mac80211: create channel list for fixed channel operation
Currently a device which has a DFS channel selected using the UCI
channel setting might switch to a non-DFS channel in case no chanlist is
provided (UCI setting "channels") when the radio detects a DFS event.

Automatically add a chanlist consisting of the configured channel when
the device does not operate in auto-channel mode and no chanlist set to
circumvent this issue.

Signed-off-by: David Bauer <mail@david-bauer.net>
2020-07-20 15:07:47 +02:00
Jan Hoffmann
dfe0bc860f mac80211: allow ACS restriction with fixed channel
This can be useful when a DFS channel is configured, as the ACS channel
list is taken into account when switching channels after a radar event.
For example, this allows to prevent the SRD channels from being used in
that case.

Signed-off-by: Jan Hoffmann <jan@3e8.eu>
[reorder structure]
Signed-off-by: David Bauer <mail@david-bauer.net>
2020-07-06 17:56:54 +02:00
Leon M. George
8f95220bcb mac80211: fix use of local variable
mac80211_get_addr is called from mac80211_generate_mac, where the local variable
initialisation id="${macidx:-0}" suggests that macidx is not always defined.
Probably, idx was supposed to be used instead of $(($macidx + 1)).

Fixes: 4d99db168c ("mac80211: try to get interface addresses from wiphy sysfs 'addresses' if no mask is set")

Signed-off-by: Leon M. George <leon@georgemail.eu>
2020-06-24 01:21:24 +02:00
John Crispin
5aa2ddd0d6 hostapd: add support for wifi-station and wifi-vlan sections
This patch adds support for 2 new uci sections.

config wifi-vlan
	# iface is optional. if it is not defined the vlan will apply
	# to all interfaces
        option iface	default_radio0
        option name	guest
        option vid	100
        option network	guest

config wifi-station
	# iface is optional. if it is not defined the station will apply
	# to all interfaces
        option iface	default_radio0
        # mac is optional. if it is not defined it will be a catch all
	# for any sta using this key
	option mac	'00:11:22:33:44:55'
        # vid is optional. if it is not defined, the sta will be part of
	# the primary iface.
	option vid	100
        option key	testtest

With this patch applied it is possible to use multiple PSKs on a single BSS.

Signed-off-by: John Crispin <john@phrozen.org>
2020-06-04 13:36:37 +02:00
John Crispin
02f08056bc mac80211: fix wifi teardown
reverts part of the recent wifi reconf patch.

Signed-off-by: John Crispin <john@phrozen.org>
2020-05-30 12:01:08 +02:00
Enrique Rodríguez Valencia
84c96de606 mac80211: Fix setting radio htmode when using mesh mode
When configuring the radio in legacy mode from luci, the htmode is not set
correctly to NOHT, causing the radio in mesh mode to be set to HT40.

Signed-off-by: Enrique Rodríguez Valencia <enrique.rodriguez@galgus.net>
2020-05-28 14:06:54 +01:00
Adrian Schmutzler
05afbcd14e mac80211: replace backticks by $(...)
This replaces deprecated backticks by more versatile $(...) syntax.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2020-05-13 19:01:23 +02:00
Ali MJ Al-Nasrawy
a8a1ef8568 mac80211: distance config: allow "auto" as a value
The user can now enable the ACK timeout estimation algorithm (dynack)
for drivers that support it.
It is also expected that the distance config accepts the same values as:
$ iw phyX set distance XXX

Signed-off-by: Ali MJ Al-Nasrawy <alimjalnasrawy@gmail.com>
2020-05-09 15:08:39 +02:00
John Crispin
b5516603dd mac80211: more wifi reconf related fixes
* uci state was not getting reset properly during teardown
* AP+STA co-exist state was not flushed properly upon channel switch
* remove a debug logger call
* properly teardown supplicant instances when they get disabled
* add md5 config support for supplicant
* don't call wpa_supplicant_prepare_interface twice

Signed-off-by: John Crispin <john@phrozen.org>
2020-05-04 16:22:03 +02:00
Daniel Golle
0495324b9b mac80211: make sure existing iface belongs to correct (fullmac) phy
Some FullMAC cfg80211 wireless devices do not support virtual
interfaces, hence there is script logic to keep the existing network
device. Improve this to support renaming the interface if needed and
make sure the existing interface actually belongs to the right phy.
Change calls to 'iw' to avoid outputing warnings and errors to not
confuse users of such devices.

Also bump PKG_RELEASE which has been forgotten in the previous two
mac80211 changes.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2020-04-17 13:31:58 +01:00
Daniel Golle
99d567a83d mac80211: fix detecting existing interface
Instead of using the actual interface name, a hard-coded 'wlan0' has
slipped into the script. Replace it.

Fixes: ccf2aa9d4b ("mac80211: detect existing interface before adding")
Reported-by: John Crispin <john@phrozen.org>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2020-04-17 11:36:35 +01:00
Daniel Golle
a66efbf916 mac80211: adapt for single-instance wpad
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2020-04-14 00:22:21 +01:00
John Crispin
22d896eb21 hostapd: fix no_reload logic
the code would unconditionally tear down all interfaces upon a reconf.
This should only be done when the reconf call fails.

Signed-off-by: John Crispin <john@phrozen.org>
2020-03-27 16:18:57 +01:00
Oldřich Jedlička
23a885bf89 mac80211: do not try to setup hostapd-managed interfaces.
For virtual access points (when multiple SSIDs are used for one
physical AP), there exist one physical network interface and
multiple virtual interfaces, which are fully under control of
hostapd. When networking is setup, the script
`/lib/netifd/wireless/mac80211.sh` is called, which tries to bring
the interface up by a call to `ip link set dev <iface> up`. This
call might fail for virtual APs, because the virtual interface
might not have been created by hostapd yet. There are some artifical
delays in the script most probably to handle this, but when DFS
channel availability check on 5GHz band is issued, hostapd can
delay creating virtual interfaces by a minute.

In order to fix this (or work around it), do not try to bring the
interface up (this is responsibility of hostapd anyway) and
do not try to set txpower on the virtual interface.

Fixes FS#2698.

Signed-off-by: Oldřich Jedlička <oldium.pro@gmail.com>
2020-03-20 21:55:17 +00:00
John Crispin
a1dd773272 mac80211: enhance wifi reload
If the reconf call fails force a full restart of the radio.

Signed-off-by: John Crispin <john@phrozen.org>
2020-02-25 17:03:44 +01:00
Tomislav Požega
cd5dbba905 mac80211: expose chanbw support to debugfs for ath9k_htc
This will ensure the htc suffixed driver also gets created
chanbw debugfs entry.

Signed-off-by: Tomislav Požega <pozega.tomislav@gmail.com>
2020-02-13 17:45:46 +01:00
Daniel Golle
3d6c571083 mac80211: add support for wds_bridge hostapd feature
hostapd allows putting WDS (4addr mode) clients into a separate bridge
other than the bridge regular (3addr mode) clients end up in. This is
useful for example giving WDS clients access to several VLANs
(trunking) while regular clients will end up inside a specific VLAN.

Add 'wds_bridge' config parameter for wifi-iface which contains the
name of the bridge. hostapd-mini already supports this feature, so all
needed is to add the UCI wrapping in mac80211.sh.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2020-01-22 14:22:17 +02:00