In the drv_mac80211_setup function, mac80211_interface_cleanup
is called to ask the kernel to delete all existing interfaces
for the phy that is being configured via netlink.
Later in the first function, mac80211_prepare_vif is called to
set up the new interfaces as required.
But sometimes, when mac80211_prepare_vif (and so the relevant
`iw phy x interface add y` command) runs, the kernel might still
be cleaning up the old interface with the same ifname. It usually
takes very few time to do that; possibly a few milliseconds of
sleep in the script after detecting this error condition could be
enough, but the busybox sh does not support sub-second sleep
intervals.
When this happens, iw obviously fails to create the new interface;
and the following message is printed in the system log, followed by
subsequent failure messages from hostapd in case this would have been
an AP interface.
Tue Mar 14 04:21:57 2017 daemon.notice netifd: radio1 (2767): command failed: Too many open files in system (-23)
This was a long-standing issue existing since at least OpenWrt Backfire,
and today I finally managed to debug and (hopefully) solve it.
It was happening very few times on most devices; but it was happening
a lot more frequently on fast platforms with multiple radios, such as
the powerpc-based dual-ath9k-radio tl-wdr4900-v1.
Signed-off-by: Vittorio Gambaletta <openwrt@vittgam.net>
The short log of changes since the 2016-06-10 release is below.
Jouni Malinen (1):
wireless-regdb: Remove DFS requirement for India (IN)
Ryan Mounce (1):
wireless-regdb: Update rules for Australia (AU) and add 60GHz rules
Seth Forshee (2):
wireless-regdb: Update 5 GHz rules for Canada
wireless-regdb: update regulatory.bin based on preceding changes
Signed-off-by: Ryan Mounce <ryan@mounce.com.au>
Some debugging/error messages are printed using wpa_printf and this
change allows finally reading them out of the syslog.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Currently, the wifi detection script is executed as part of
the (early) boot process. Pluggable wifi USB devices, which
are inserted at a later time are not automatically
detected and therefore they don't show up in LuCI.
A user has to deal with wifi detection manually, or restart
the router.
However, the current "sleep 1" window - which the boot
process waits for wifi devices to "settle down" - is too
short to detect wifi devices for some routers anyway.
For example, this can happen with USB WLAN devices on the
WNDR4700. This is because the usb controller needs to load
its firmware from UBI and initialize, before it can operate.
The issue can be seen on a BT HomeHub 5A as well as soon as
the caldata are on an ubi volume. This is because the ath9k
card has to be initialized by owl-loader first. Which has to
wait for the firmware extraction script to retrieve the pci
initialization values inside the caldata.
This patch moves the wifi configuration to hotplug scripts.
For mac80211, the wifi configuration will now automatically
run any time a "ieee80211" device is added. Likewise
broadcom-wl's script checks for new "net" devices which
have the "wl$NUMBER" moniker.
Issues with spawning multiple interface configuration - in
case the detection script is run concurrently - have been
resolved by using a named section for the initial
configuration. Concurrent configuration scripts will now
simply overwrite the same existing configuration.
A workaround which preserves the "sleep 1" window for just
the first boot has been added. This allows the existing
brcm47xx boot and mvebu uci-default scripts to correctly
setup the initial mac addresses and regulatory domain.
And finally, the patch renames the "wifi detect" into
"wifi config". As the script no longer produces any output
that has to be redirected or appended to the configuration
file.
Thanks to Martin Blumenstingl for helping with the implementation
and testing of the patch.
Acked-by: Jo-Philipp Wich <jo@mein.io>
Signed-off-by: Mathias Kresin <dev@kresin.me>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Previously, wifi detect simply dumped its generated wireless
configuration to STDOUT. A second step was needed to append
the configuration to /etc/config/wireless (or create it, if
it didn't exist).
With this patch, The wifi detection script will now use uci
to update the wireless configuration directly.
This patch also makes the initially created wifi-iface a
named section ('default_radio$X' for mac80211 and
'default_wl$X' for broadcom). With this change, uci will
not print the cfgHASH to STDOUT (which would now corrupt
the wireless configuration). It will also prevent adding
duplicated wifi interface configurations, if the wifi
configuration is run concurrently.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Changes include:
* Higher maximum transmit power in the 5170-5250 band of the BG
regdomain
* Introduction of the CU regdomain
* Introduction of the 5725-5875 band (short-range devices) in the DE
regdomain
* Introduction of 60 GHz channels 1-4 in the KR regdomain
* Introduction of the 5725-5875 band (short-range devices) in the NL
regdomain
Signed-off-by: Petko Bordjukov <bordjukov@gmail.com>
- Fix calculation of `$vht_cap` bit field
- Replace wrong reference to `$tx_stbc` variable with proper `$tx_stbc_2by1` one
- Emit proper `RX-STBC-{1,12,123,1234}` tokens for the VHT capability list
See https://dev.openwrt.org/ticket/22535 for reference.
Signed-off-by: Scott Shambarger <devel@shambarger.net>
LEDE project seems to be using "LEDE" as its acronym everywhere. To keep
things consistent adjust default wireless SSID.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Acked-by: Jo-Philipp Wich <jo@mein.io>
Acked-by: John Crispin <john@phrozen.org>
Acked-by: Alexander Couzens <lynxis@fe80.eu>
The "iw" utility expects the VHT80 to be specified as uppercase "80MHZ",
change the script to reflect that.
Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>
SVN-Revision: 47814
Add a new config option "channels" for mac80211 wifi devices. It's only
valid if automatic channel selection is used and restricts the channel
selection to one of the given channels.
config wifi-device
list channels 1
list channels 6
list channels 11
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
SVN-Revision: 47427
In order to set the multicast rate for mesh point interfaces the "mesh join"
was made explicit and moved to mac80211_setup_vif(), similar to how it is
done for IBSS interfaces.
Previously, the mesh join was made implicit in case authentication (i.e.
$key) was not used when creating the interface in mac80211_prepare_vif(),
while using authentication would create the interface first, then join
later in mac80211_setup_vif() by starting authsae.
Signed-off-by: Nils Schneider <nils@nilsschneider.net>
SVN-Revision: 47408
Before starting hostapd we create interface for it. The problem is we
try to create STA interface just to let hostapd change it to AP later.
It may fail if device doesn't support STA interfaces or if we already
hit a limit. Consider following phy (it's from BCM43602 and brcmfmac):
$ iw phy phy0 info | tail
valid interface combinations:
* #{ IBSS, managed } <= 1, #{ AP } <= 4, #{ P2P-client, P2P-GO } <= 1, #{ P2P-device } <= 1,
total <= 3, #channels <= 1
Trying to setup 2 interfaces: STA + AP results in:
radio0 (1101): command failed: Operation not supported (-95)
radio0 (1101): command failed: Operation not supported (-95)
radio0 (1101): command failed: Operation not supported (-95)
radio0 (1101): command failed: Operation not supported (-95)
radio0 (1101): Configuration file: /var/run/hostapd-phy0.conf
radio0 (1101): Could not read interface wlan0-1 flags: No such device
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
SVN-Revision: 45856
instead of failing when authsae is not installed, also try using
wpa_supplicant as the newly added -mesh variants support mesh mode
and SAE encryption.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
SVN-Revision: 45520
Two errors "netifd: radio0: sh: bad number" have recently surfaced in system
log in trunk when wifi interfaces come up. I tracked the errors to checking
numerical values of some config options without ensuring that the option has
any value.
The errors I see have apparently been introduced by r45051 (ieee80211r in
hostapd) and r45326 (start_disabled in mac80211). My patches fix two
instances of "bad number", but there may be a third one, as the original
report in bug 19345 pre-dates r45326 and already has two "bad number" errors
for radio0.
https://dev.openwrt.org/ticket/19345
Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>
SVN-Revision: 45379
Part of rev 44173 added setting the SM Power Save capability in the hostapd.conf
file if the driver indicated that it was supported. It appears this was
incorrect, because the field in the actual HT Capabilities field in the AP
configuration is really a state indication. Just copying the state from the
capability resulted in the AP indicating that it had SMPS enabled all the time
if it supported SMPS. This effectively just disables all clients from sending
packets to the AP with more than one spatial stream, for no good reason.
So remove this part of the change.
Signed-off-by: Robert Hancock <hancockrwd@gmail.com>
SVN-Revision: 44239
Add some missing 802.11n capabilities to the hostapd ht_capab string when
supported by the hardware: Spatial Multiplexing Power-Save and 7935-byte AMSDUs.
Signed-off-by: Robert Hancock <hancockrwd@gmail.com>
SVN-Revision: 44173
If '/sys/class/ieee80211/phyN' is not a symlink, the call to readlink
produces either an empty path (if /sys/class/ieee80211/phyN/device doesn't
exist) or a path that begins with '/sys/class/ieee80211' (which does not
work with the subsequent line to strip '/sys/devices' from the beginning of
the path). Modify the checks to detect these conditions, and fallback to
using the macaddr.
Signed-off-by: Nathan Hintz <nlhintz@hotmail.com>
SVN-Revision: 44172
[base-files] shell-scripting: fix wrong usage of '==' operator
normally the '==' is used for invoking a regex parser and is a bashism.
all of the fixes just want to compare a string. the used busybox-ash
will silently "ignore" this mistake, but make it portable/clean at least.
this patch does not change the behavior/logic of the scripts.
Signed-off-by: Bastian Bittorf <bittorf@bluebottle.com>
SVN-Revision: 42911
This change introduces support for wildcard patterns in "option path"
of section "wifi-device".
Objective is to allow paths like "*/usb[0-9]/*/*" in order to claim
any usb device using the same backend type, regardless of its bus
address or phy name.
Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>
SVN-Revision: 41873
The vif option dtim_period was accidently renamed dtim_interval in r38988
("netifd: add wireless configuration support and port mac80211 to the new
framework"). This is wrong and makes the dtim_period/dtim_interval a dead
option because the rest of the config generation code still uses dtim_period.
Reported-by: Jeppe Ledet-Pedersen <jlp@steinwurf.com>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
SVN-Revision: 41557
r40682 ("mac80211: clean up ht capability handling, drop the use of the
ht_capab list, use individual variables instead") removed the ht_capab list and
replaced it with optional variables to disable features for a phy. But these
variables weren't added in drv_mac80211_init_device_config and thus didn't make
any difference when modifying /etc/config/wireless.
Signed-off-by: Sven Eckelmann <sven@narfation.org>
SVN-Revision: 41180
This patch enables netifd to query 802.11ac-driver for the maximum
supported A-MPDU length exponent, possibly increasing VHT throughput by
more aggressive frame aggregation.
v2: refreshed patch
Signed-off-by: Matti Laakso <malaakso at elisanet.fi>
SVN-Revision: 40938
