Commit Graph

1443 Commits

Author SHA1 Message Date
Paul Spooren
56bdb6bb97 base-files: fix /tmp/TZ when zoneinfo not installed
The zoneinfo packages are not installed per default so neither
/tmp/localtime nor /tmp/TZ is generated.

This patch mostly reverts the previous fix and instead incooperates a
solution suggested by Jo.

Fixes "base-files: fix zoneinfo support " 8af62ed

Signed-off-by: Paul Spooren <mail@aparcar.org>
2021-06-24 20:00:20 -10:00
Rosen Penev
8af62ede18 base-files: fix zoneinfo support
The system init script currently sets /tmp/localinfo when zoneinfo is
populated. However, zoneinfo has spaces in it whereas the actual files
have _ instead of spaces. This made the if condition never return true.

Example failure when removing the if condition:

/tmp/localtime -> /usr/share/zoneinfo/America/Los Angeles

This file does not exist. America/Los_Angeles does.

Ran through shfmt -w -ci -bn -sr -s

Signed-off-by: Rosen Penev <rosenp@gmail.com>
2021-06-23 14:10:27 -10:00
Luiz Angelo Daros de Luca
fe6b9b0588 base-files: bring up vlan interface too
Vlan subinterface was never brought up when using vlan-based preinit network.
Tested forcing ifname="" before preinit_ip() on a Tp-Link Archer C5v4.

Signed-off-by: Luiz Angelo Daros de Luca <luizluca@gmail.com>
2021-06-22 23:23:00 +02:00
Hauke Mehrtens
790561d510 base-files: failsafe: Remove the VLAN modifier from interface name
Some interfaces have a VLAN modifier like :t in lan1:t, this modifier
should be removed from the interface before calling preinit_ip_config().

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2021-06-22 23:23:00 +02:00
Hauke Mehrtens
467cd378db base-files: failsafe: Fix IP configuration
Adapt the preinit_config_board() to the board.json network changes. It
now looks for the device and the ports variables to configure the LAN
network.

This works with swconfig configurations.

Fixes: FS#3866
Fixes: d42640e389 ("base-files: use "ports" array in board.json network for bridges")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Reviewed-by: Rafał Miłecki <rafal@milecki.pl>
2021-06-22 23:23:00 +02:00
Karel Kočí
cc7316d1e9 base-files: fix enabled for services with only STOP
There are services that have only STOP value set. They are executed only
on shutdown and it is common to use them for system cleanup. There is
one such service shipped directly with base-files, it is 'umount'. Those
work the same way as those with START but enabled does not report them
as enabled although it should have as they can be enabled and disabled
as any other service.

This also changes check from check for executable to check for symbolic
link. The implementation depends on those being links to service file
and it is much cleaner and direct to check for them being links.

Signed-off-by: Karel Kočí <karel.koci@nic.cz>
2021-06-22 09:45:27 -10:00
Florian Eckert
40f533b73e base-files: redirect kill ouptut for ash, telnetd and dropbear
If one of the programmes is not running, then we see the following
output in the logs.

`killall: telnetd: no process killed`

To ensure that the log is clean, redirect the output to /dev/null

Signed-off-by: Florian Eckert <fe@dev.tdt.de>
2021-06-20 15:15:32 -10:00
Florian Eckert
d8bfcc59b0 base-files: remove unused vn and _vn function
The remaining vn calls have been ported to v.
Therefore, these functions are no longer needed and will be removed.

Signed-off-by: Florian Eckert <fe@dev.tdt.de>
2021-06-20 15:15:32 -10:00
Florian Eckert
42d78fedfb base-files: change logging for upgrade on stage2
Remove vn call in favour of v call. This commit serves as preparation
for removing the vn function call.

Signed-off-by: Florian Eckert <fe@dev.tdt.de>
2021-06-20 15:15:32 -10:00
Florian Eckert
bb2b7156a4 base-files: add syslog logging for v function
The logging output should not only be displayed in the calling shell
session but also in the syslog. A sysupgrade and a configuration
import, export can thus be traced in the syslog.

Signed-off-by: Florian Eckert <fe@dev.tdt.de>
2021-06-20 15:15:32 -10:00
Chuck Fan
d374e2cdb4 base-files: upgrade: use zcat command provided by busybox
Calling `switch_to_ramfs()` will not copy the gzip executable
(/bin/gzip) to ramfs, but `/bin/zcat` will call `/bin/gzip` when
package gzip is installed, instead of the busybox-supplied zcat.
This will cause `zcat` to fail to find `gzip`, then cause the
sysupgrade to fail. Adding the `busybox` prefix here will solve
the problem.

Signed-off-by: Chuck Fan <fanck0605@qq.com>
2021-06-20 14:19:54 -10:00
Sergey Ponomarev
bffee5ea19 busybox: disable bzip2
bzip2 adds about 8kb of size. For tiny builds it's often disabled.
It's not directly used by stock OpenWrt programs.
Kernel images compressed with bzip2 are also not fully supported.

Signed-off-by: Sergey Ponomarev <stokito@gmail.com>
[fix \ indention]
Signed-off-by: Paul Spooren <mail@aparcar.org>
2021-06-20 14:17:49 -10:00
Rafał Miłecki
946019637e base-files: fix typo in config_generate MAC check
Fixes: 8d8eb9d13fc6 ("base-files: set MAC for bridge ports (devices) instead of bridge itself")
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2021-06-14 22:29:49 +02:00
Rafał Miłecki
c8d8eb9d13 base-files: set MAC for bridge ports (devices) instead of bridge itself
This restores the original config_generate behaviour. With MAC set for
bridged devices the bridge automatically gets its MAC adjusted (it picks
the lowest MAC of bridged devices).

This fixes confusing interfaces setup (bridge ports not having custom
MAC assigned).

Reported-by: Koen Vandeputte <koen.vandeputte@citymesh.com>
Fixes: e002179a6d ("base-files: simplify setting device MAC")
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2021-06-14 20:24:46 +02:00
Michael Pratt
b118aba8cb base-files: upgrade: use procd to kill managed daemons
These processes are managed by procd and set to start again when killed
via the procd instance parameter "respawn" being set during init.

Example:
procd_set_param respawn 3600 1 0

When they are killed manually during sysupgrade,
they are started again in 5 seconds or less, depending on
how the "respawn" parameter is set.

Use procd through ubus to disable the instances that respawn them,
however, allow dnsmasq, netifd, and logd to restart for remote logging.

Properly closing all these processes increases free memory by about 3 MB,
which should help low memory devices upgrade without crashing.

For very low memory devices (set to 32 MB for now)
also kill dnsmasq, netifd, and logd for an additional 3 MB of free memory.

Also, bump sleep values to allow at least 10 seconds
for network interfaces and daemons
to come up after they are killed and restarted
before caches are dropped.

Signed-off-by: Michael Pratt <mcpratt@pm.me>
2021-06-12 13:59:27 -10:00
Rafał Miłecki
e002179a6d base-files: simplify setting device MAC
1. Move code above interface generation
   It results in more logical order. Device gets its config section
   above interface section.
2. Drop the loop
   We have separated code handling bridges now so $device should be
   guaranteed to contain a single device name.
3. Drop section name
   It's not required by netifd or LuCI & it's not needed by this script
   as $device contains a single device name now.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2021-05-28 15:35:32 +02:00
Rafał Miłecki
4b9a67362d base-files: generate network config with "device" options
Replace "ifname" with "device" as netifd has been recently patches to
used the later one. It's more clear and accurate.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2021-05-27 10:58:49 +02:00
INAGAKI Hiroshi
8cc4e87a2f base-files: fix configuration generation of network if "bridge" exists
After the commit 43fc720657
("base-files: generate "device UCI type section for bridge"), the wrong
network configuration is generated for the devices that already have the
bridge device section for VLAN, such as the devices in realtek target.

As a result, the bridge device by additional "device" section is
specified to the "ports" option in the "bridge-vlan" section and netifd
shuts down the switch and the ethernet when the network service started.

Fixes: 43fc720657 ("base-files: generate "device" UCI type section for bridge")
Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>
[rmilecki: use $ports for generate_bridge_vlan argument]
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2021-05-24 09:09:00 +02:00
Rafał Miłecki
7a90ad3c43 base-files: support setting bridge MAC address
Fixes: 43fc720657 ("base-files: generate "device" UCI type section for bridge")
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2021-05-24 07:48:17 +02:00
Rafał Miłecki
80be798d4a Revert "base-files: migrate old UCI network bridge ports syntax"
This reverts commit f716c30241.

Migrating everyone to the new syntax could break downgrades. We may
reintroduce it way later if needed.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2021-05-20 12:25:25 +02:00
Rafał Miłecki
0e459668c5 base-files: generate bridge device sections with br- name prefix
Missing br- prefix could result in name conflict between DSA port
interface and bridge interface. Some devices with just one LAN port use
"lan" interface name for DSA port. Trying to create bridge with the same
"lan" name was failing.

Reported-by: David Bauer <mail@david-bauer.net>
Fixes: 43fc720657 ("base-files: generate "device" UCI type section for bridge")
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2021-05-20 10:40:59 +02:00
Philip Prindeville
b810d649fb busybox: preserve crontabs
/etc/syslog.conf is used by sysklogd, and /etc/crontabs is used
by crond, both features of busybox.  Given this, ownership for
these files should be bound to busybox, especially if one day
there's a way to do an in-place opkg update of busybox.

There's also the busybox provided syslogd which uses this file
if CONFIG_BUSYBOX_FEATURE_SYSLOGD_CFG is set.

Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>
2021-05-19 15:50:50 +02:00
Rafał Miłecki
f716c30241 base-files: migrate old UCI network bridge ports syntax
netifd has been recently patched to use more accurate "ports" option
instead of "ifname". This is a simple translation between two UCI
options.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2021-05-18 20:07:56 +02:00
Rafał Miłecki
43fc720657 base-files: generate "device" UCI type section for bridge
This switches from the old way of defining bridges in an "interface" UCI
section type (that should be used for layer 3 only). From now a defualt
board switch will have its own "device" UCI section type. It's a new &
preferred way of defining L2 devices.

Before:

config interface 'lan'
        option type 'bridge'
        option ifname 'lan1 lan2 lan3 lan4'
        option proto 'static'
        option ipaddr '192.168.1.1'
        option netmask '255.255.255.0'

After:

config device
        option name 'lan'
        option type 'bridge'
        list ports 'lan1'
        list ports 'lan2'
        list ports 'lan3'
        list ports 'lan4'

config interface 'lan'
        option ifname 'lan'
        option proto 'static'
        option ipaddr '192.168.1.1'
        option netmask '255.255.255.0'

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2021-05-18 20:07:51 +02:00
Rafał Miłecki
d42640e389 base-files: use "ports" array in board.json network for bridges
Bridge aggregates multiple ports so use a more accurate name ("ports")
and format (array) for storing them in board.json.

Example:

"network": {
	"lan": {
		"ports": [
			"lan1",
			"lan2",
			"lan3",
			"lan4"
		],
		"protocol": "static"
	},
	"wan": {
		"ifname": "wan",
		"protocol": "dhcp"
	}
}

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2021-05-18 12:30:16 +02:00
Florian Eckert
e0c6506158 base-files: change logging for upgrade on fwtool
Remove vn call in favour of v call. This commit serves as preparation
for removing the v function call.

Signed-off-by: Florian Eckert <fe@dev.tdt.de>
[alter slightly to prevent double space after colon]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2021-05-17 01:00:14 +02:00
Leonardo Mörlein
b993b68b6c build: introduce $(MKHASH)
Before this commit, it was assumed that mkhash is in the PATH. While
this was fine for the normal build workflow, this led to some issues if

    make TOPDIR="$(pwd)" -C "$pkgdir" compile

was called manually. In most of the cases, I just saw warnings like this:

    make: Entering directory '/home/.../package/gluon-status-page'
    bash: line 1: mkhash: command not found
    bash: line 1: mkhash: command not found
    bash: line 1: mkhash: command not found
    bash: line 1: mkhash: command not found
    bash: line 1: mkhash: command not found
    bash: line 1: mkhash: command not found
    bash: line 1: mkhash: command not found
    bash: line 1: mkhash: command not found
    [...]

While these were only warnings and the package still compiled sucessfully,
I also observed that some package even fail to build because of this.

After applying this commit, the variable $(MKHASH) is introduced. This
variable points to $(STAGING_DIR_HOST)/bin/mkhash, which is always the
correct path.

Signed-off-by: Leonardo Mörlein <me@irrelefant.net>
2021-05-13 15:13:15 +02:00
Jo-Philipp Wich
75ea878d1b base-files: shinit: properly handle dashes in service names
Fixes: FS#3801
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2021-05-12 12:44:32 +02:00
Daniel Golle
a2b9ec0231
base-files: upgrade: take down loop and LVM before upgrade
Users of devices with large block storage may choose to have an LVM
partition on the same device which is used for booting OpenWrt.
The presents a problem during sysupgrade as the root device is then
still busy and changing partitions will not work as desired,
leading to data corruption in case the newly flashed image is larger
than the currently installed one.
Having loop devices setup causes similar havoc.
Make sure all volume groups are offline and all loop devices have been
released before sysupgrade.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2021-05-05 13:18:43 +01:00
Alexander Egorenkov
9318f61556 base-files: fix status display command
If service() is called w/o parameter then the status display for services
with multiple instances is incorrect. E.g. samba4 or wpad have 2 instances.

root@OpenWrt:~# /etc/init.d/samba4 status
running
root@OpenWrt:~# /etc/init.d/wpad status
running

Before change:
/etc/init.d/samba4                 enabled         stopped
/etc/init.d/wpad                   enabled         stopped

After change:
/etc/init.d/samba4                 enabled         running
/etc/init.d/wpad                   enabled         running

Signed-off-by: Alexander Egorenkov <egorenar-dev@posteo.net>
2021-04-03 18:56:02 +02:00
Daniel Golle
bb107ad9c1
base-files: functions: introduce new helper functions
Introduce cmdline_get_var() to /lib/function.sh and make use of it in
export_rootdev() in /lib/upgrade/common.sh, making the code more
simple and removing one level of indentation.
Introduce get_partition_by_name() to /lib/upgrade/common.sh which is
useful on non-EFI GPT platforms like mt7622.
Remove some dead-code while at it.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2021-03-31 16:53:39 +01:00
Florian Eckert
fdbdbe8eaa base-files: add logging for configuration import
Make sysupgrade backup import more verbose.

Signed-off-by: Florian Eckert <fe@dev.tdt.de>
2021-03-21 22:45:20 +01:00
Adrian Schmutzler
85b1f4d8ca treewide: remove execute bit and shebang from board.d files
So far, board.d files were having execute bit set and contained a
shebang. However, they are just sourced in board_detect, with an
apparantly unnecessary check for execute permission beforehand.

Replace this check by one for existance and make the board.d files
"normal" files, as would be expected in /etc anyway.

Note:

This removes an apparantly unused '#!/bin/sh /etc/rc.common' in
target/linux/bcm47xx/base-files/etc/board.d/01_network

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2021-03-06 11:30:06 +01:00
Florian Eckert
dec14ac436 base-files: add new application led trigger backend
For now we have only kernel LED trigger support. With this change it is now
possible to use application triggers.

If we configure a LED with a non kernel trigger, then we check on every
restart and boot of the LED service if we have this trigger as an application
in "/usr/libexec/led-trigger". If this file with the name is found, then we
execute this to init the LED.

Possible use cases are:

- Start/Stop/Restart an application led trigger service for this led
- Init a LED that is configured by a hotplug script (VPN tunnel established)

Signed-off-by: Florian Eckert <fe@dev.tdt.de>
2021-03-05 00:10:06 -10:00
Daniel Golle
ebcb4f1d0a
treewide: fix spelling 'seperate' -> 'separate'
This popular spelling mistake was also introduced by myself lately.
Fix it everywhere.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2021-02-28 23:59:21 +00:00
Daniel Golle
84a339f015 base-files: add support for restoring config from tmpfs
Instead of only relying in /sysupgrade.tgz being present in rootfs to
restore configuration, also grab /tmp/sysupgrade.tar which may have
magically gotten there during preinit...

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2021-02-28 00:09:09 +00:00
Daniel Golle
287bd78e6f
base-files: remove unneeded '$' signs in nand.sh
When using Shell arithmetric evaluation via $((..)) the variables in
the expression do not need to be prefixed by the '$' sign.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2021-02-24 11:42:02 +00:00
Daniel Golle
5c10f26c28 sysupgrade-nand: allow limiting rootfs_data by setting env variable
Check if firmware environment variable 'rootfs_data_max' exists and is
set to a numerical value greater than 0. If so, limit rootfs_data
volume to that size instead of using the maximum available size.

This is useful on devices with lots of flash where users may want to
have eg. a volume for persistent logs and statistics or for external
applications/containers. Persistence on rootfs overlay is limited by
the size of memory available during the sysugprade process as that
data needs to be copied to RAM while the volume is being recreated
during sysupgrade. Hence it is unsuitable for keeping larger amounts
of data accross upgrade which makes additional volume(s) for
application data desirable.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2021-02-24 01:35:20 +00:00
Daniel Golle
e6aac8d98f image: add support for building FIT image with filesystem
Allow for single (external-data) FIT image to hold kernel, dtb and
squashfs. In that way, the bootloader verifies the system integrity
including the rootfs, because what's the point of checking that the
hash of the kernel is correct if it won't boot in case of squashfs
being corrupted? Better allow bootloader to check everything needed
to make it at least up to failsafe mode. As a positive side effect
this change also makes the sysupgrade process on nand potentially
much easier as it is now.
In short: mkimage has a parameter '-E' which allows generating FIT
images with 'external' data rather than embedding the data into the
device-tree blob itself. In this way, the FIT structure itself remains
small and can be parsed easily (rather than having to page around
megabytes of image content). This patch makes use of that and adds
support for adding sub-images of type 'filesystem' which are used to
store the squashfs. Now U-Boot can verify the whole OS and the new
partition parsers added in the Linux kernel can detect the filesystem
sub-images, create partitions for them, and select the active rootfs
volume based on the configuration in FIT (passing configuration via
device tree could be implemented easily at a later stage).

This new FIT partition parser works for NOR flash (on top of mtdblock),
NAND flash (on top of ubiblock) as well as classic block devices
(ie. eMMC, SDcard, SATA, NVME, ...).
It could even be used to mount such FIT images via `losetup -P` on a
user PC if this patch gets included in Linux upstream one day ;)

Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2021-02-24 01:35:20 +00:00
Rosen Penev
157cd0bd97 base-files: use hwclock --systz
The date -k patch is non standard and will be removed in the next
commit.

Tested behavior to be identical with a simple C program:

 #define _GNU_SOURCE
 #include <unistd.h>
 #include <stdio.h>
 #include <sys/time.h>
 #include <sys/syscall.h>

int main()
{
        struct timezone tt;
	struct timezone tz;

        int a = syscall(SYS_gettimeofday, NULL, &tt);
        int b = gettimeofday(NULL, &tz);
        printf("%d - %d, %d\n", a, tt.tz_minuteswest, tt.tz_dsttime);
        printf("%d - %d, %d\n", b, tz.tz_minuteswest, tz.tz_dsttime);
}

Signed-off-by: Rosen Penev <rosenp@gmail.com>
2021-02-14 15:15:32 +01:00
Brian Norris
95b30f84d2 base-files: mount pstore if present
Pstore (persistent store) can be used to stash debug information (kernel
console, panics, ftrace) across reboots or crashes. If the filesystem is
present, mount it.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2021-01-29 22:26:36 +01:00
Adrian Schmutzler
396a35dd51 base-files: remove execute bit and shebang from functions.sh
/lib/functions.sh was executable for no obvious reason and its
execute property was even checked in package-ipkg.mk just to
source it afterwards.

Remove the execute bit and shebang as this is clearly a library.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Reviewed-by: Philip Prindeville <philipp@redfish-solutions.com>
2021-01-29 14:30:32 +01:00
Adrian Schmutzler
331892f85f treewide: drop shebang from non-executable lib files
This drops the shebang from another bunch of files in various /lib
folders, as these are sourced and the shebang is useless.

Fix execute bit in one case, too.

This should cover almost all trivial cases now, i.e. where /lib is
actually used for library files.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2021-01-29 14:29:41 +01:00
Paul Spooren
2d72be766d base-files: bump Copyright to 2021
This commit is only added to keep the PKG_RELEASE correct after fixing
the $(COMMITCOUNT) logic in the previous commit.

This way the PKG_RELEASE stays the same while the compiled packages
content isn't changed.

Signed-off-by: Paul Spooren <mail@aparcar.org>
2021-01-26 17:30:09 -10:00
Paul Spooren
aa589c77b4 base-files: use $(COMMITCOUNT) in PKG_RELEASE
The newly added `$(COMMITCOUNT)` varialbe allows automatic versioning
based on the number of Git commits of a package. Replace *tedious to
bump* and *merge conflict causing* `PKG_RELEASE` and replace it with
`$(COMMITCOUNT)`.

Signed-off-by: Paul Spooren <mail@aparcar.org>
2021-01-22 19:03:53 -10:00
Adrian Schmutzler
81655e1450 base-files: read all 3 bytes in get_magic_vfat() at once
While the speed improvement might be negligible, there is still no
reason to read individual bytes.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2021-01-07 19:51:50 +01:00
Daniel Golle
9c845a5ad1 base-files: wifi: add support for 802.11ad
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2021-01-05 02:16:24 +00:00
Kagurazaka Kotori
927b9df938 x86/efi: add FAT32 esp mounting support
Adds a new function get_magic_fat32() in base-files to read FAT32 magic.
Now FAT32 EFI system partition can be handled in the same way as FAT12/FAT16.

Signed-off-by: Kagurazaka Kotori <kagurazakakotori@gmail.com>
[replace '-o' with '] || [' to satisfy shellsheck]
Signed-off-by: Paul Spooren <mail@aparcar.org>
2021-01-03 13:48:50 -10:00
Oldřich Jedlička
49d678f0d2 base-files: allow reusing of boolean value extraction logic
The `functions.sh` script has `config_get_bool()` function, which is
usable when using UCI config direct access API, but there is no
equivalent for the callback API. Introduce `get_bool()` function to
allow reusing it from init scripts.

Example:

```sh
option_cb() {
    local option="$1"
    local value="$(get_bool "$2")"
    ...
}
```

Signed-off-by: Oldřich Jedlička <oldium.pro@gmail.com>
2021-01-01 10:23:56 -10:00
Adrian Schmutzler
93b6122212 base-files: sysupgrade: add function for conffiles retrieval
The find command to retrieve files from /etc/sysupgrade.conf and
/lib/upgrade/keep.d/* is used twice in almost the same way.

Move it into a function to consolidate, enhance readability and make
future adjustments easier.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Acked-by: Paul Spooren <mail@aparcar.org>
Reviewed-by: Philip Prindeville <philipp@redfish-solutions.com>
2020-12-30 00:00:13 +01:00