The current default, 7, is, to put it nicely, absolutely ridiculous.
On 2.4 GHz, the only channels you should use are 1, 6 and 11, because
every other channel overlaps one of those and causes interference.
On 5/6 GHz, channel 7 does not exist at all.
Also, it's 2024, most things will support automatic channel selection,
and those that don't will likely need extra care to support prehistoric
hardware anyway.
these changes were generated with nixq 0.0.2, by running
nixq ">> lib.mdDoc[remove] Argument[keep]" --batchmode nixos/**.nix
nixq ">> mdDoc[remove] Argument[keep]" --batchmode nixos/**.nix
nixq ">> Inherit >> mdDoc[remove]" --batchmode nixos/**.nix
two mentions of the mdDoc function remain in nixos/, both of which
are inside of comments.
Since lib.mdDoc is already defined as just id, this commit is a no-op as
far as Nix (and the built manual) is concerned.
At this point this is basically a full rewrite of this module, which
is a breaking change and was necessary to properly expose the useful
parts of hostapd's config. The notable changes are:
- `hostapd` is now started with additional systemd sandbox/hardening options
- A single-daemon can now manage multiple distinct radios and BSSs, which is
why all configuration had to be moved into `hostapd.radios`
- By default WPA3-SAE will be used, but WPA2 and WPA3-SAE-TRANSITION are
supported, too
- Added passwordFile-like options for wpa and sae
- Add new relevant options for MAC ACL, WiFi5, WiFi6 and WiFi7 configuration
- Implements RFC42 as far as reasonable for hostapd
- Removes `with lib;`
the conversion procedure is simple:
- find all things that look like options, ie calls to either `mkOption`
or `lib.mkOption` that take an attrset. remember the attrset as the
option
- for all options, find a `description` attribute who's value is not a
call to `mdDoc` or `lib.mdDoc`
- textually convert the entire value of the attribute to MD with a few
simple regexes (the set from mdize-module.sh)
- if the change produced a change in the manual output, discard
- if the change kept the manual unchanged, add some text to the
description to make sure we've actually found an option. if the
manual changes this time, keep the converted description
this procedure converts 80% of nixos options to markdown. around 2000
options remain to be inspected, but most of those fail the "does not
change the manual output check": currently the MD conversion process
does not faithfully convert docbook tags like <code> and <package>, so
any option using such tags will not be converted at all.
It's possible that setting wpa=2 disables TKIP anyway, but on my machine
I could not get 802.11n to work without setting rsn_pairwise=CCMP.
N.B. rsn_pairwise takes its default from wpa_pairwise.
Applies OpenWRT's noscan patch to hostapd and the relevant option to
the hostapd module.
This noscan patch adds a new `noscan` option allowing us to create
some overlapping BSSs in HT40+/- mode.
Note: this option is disabled by default, we leave this up to the end
user whether it should be enabled or not.
Not being able to create those overlapping BSSs is basically
preventing us to use 802.11n in any urban area where chances to
overlap with another SSID are extremely high.
The patch we are using is a courtesy of the openwrt team and is
applied to the defaul hostapd package in both OpenWRT and Archlinux.
Same problem as described in acbadcdbba.
When using multiple interfaces for wifi with `networking.wlanInterfaces`
and the interface for `hostapd` contains a dash, this will fail as
systemd escapes dashes in its device names.
* nat/bind/dhcp.service:
Remove. Those services have nothing to do with a link-level service.
* sys-subsystem-net-devices-${if}.device:
Add as BindsTo dependency as this will make hostapd stop when the
device is unplugged.
* network-link-${if}.service:
Add hostapd as dependency for this service via requiredBy clause,
so that the network link is only considered to be established
only after hostapd has started.
* network.target:
Remove this from wantedBy clause as this is already implied from
dependencies stacked above hostapd. And if it's not implied than
starting hostapd is not required for this particular network
configuration.
Using pkgs.lib on the spine of module evaluation is problematic
because the pkgs argument depends on the result of module
evaluation. To prevent an infinite recursion, pkgs and some of the
modules are evaluated twice, which is inefficient. Using ‘with lib’
prevents this problem.
