[Solved] Udev being ignored after xinit command (inside my wm)

jopicornell · 2019-06-08 10:10:10

Hello there guys!

I bought a Security Key by Yubico and tried to make it work on my arch. I installed everything the arch wiki told me, researched a bit and found that Yubico recommends this udev rules. But I had still no luck making it work. I didn't know that much about udev rules, so I researched and learned a bit of them, as they are really simple at first glance. I contacted Yubico support and they told me that I should try using sudo, and if it works, then I have to play with my permissions. And you know... sudo worked. Then, replied to them and the final message was "As arch linux is do-it-yourself, do it yourslef" (not like this, but at the end it was the meaning). I don't blame them, the support was great...

I started wondering what was happening and had a look on the udev rules. I applied some changes. Seems like plugdev group is deprecated and I put my user's group. But I saw a TAG+="uaccess" and didn't know what was doing. ACL, interesting. But... not that much information about it. The final thing I tried was rebooting my computer and trying to run "ykman mode" to see if it worked before I run my xinit with bspwm. And it worked! I ran getfacl on the device, and the output was nice:

➜ getfacl /dev/hidraw4
getfacl: Removing leading '/' from absolute path names
# file: dev/hidraw4
# owner: root
# group: myusergroup
user::rw-
user:myuser:rw-
group::rw-
mask::rw-
other::---

But look at this after I ran the same command on a terminal emulator over my wm (on the same user, for sure):

➜ getfacl /dev/hidraw4
getfacl: Removing leading '/' from absolute path names
# file: dev/hidraw4
# owner: root
# group: myusergroup
user::rw-
group::rw-
mask::rw-
other::---

What's wrong here?? I managed to make it work changing the "GROUP=myusergroup" but seems like ACL is not being applied when I start my wm... And I'm worried that in future I have problems with more usb devices that require special udev rules.

Thanks a lot guys!!!

Last edited by jopicornell (2019-06-09 10:51:42)

seth · 2019-06-08 13:10:10

run

loginctl session-status

in either context. Are both active sessions?

jopicornell · 2019-06-09 08:53:40

Thanks for your reply seth!

This is the output before xinit:

1 - jopicornell (1000)
	   Since: Sun 2019-06-09 12:41:22 CEST; 1h 58min left
	  Leader: 877 (login)
	    Seat: seat0; vc1
	     TTY: tty1
	 Service: login; type tty; class user
	   State: active
	    Unit: session-1.scope
		  ├─ 877 login -- jopicornell
		  ├─ 991 -fish
		  ├─1356 redshift
		  └─1750 loginctl session-status

and this is the output of it after xinit:

1 - jopicornell (1000)
	   Since: Sun 2019-06-09 12:41:22 CEST; 1h 58min left
	  Leader: 877 (login)
	    Seat: seat0; vc1
	     TTY: tty1
	 Service: login; type tty; class user
	   State: online
	    Unit: session-1.scope
		  ├─ 877 login -- jopicornell
		  ├─ 991 -fish
		  ├─1356 redshift
		  ├─1808 xinit
		  ├─1809 /usr/lib/Xorg :0
		  ├─1816 sh /home/jopicornell/.xinitrc
		  ├─1821 sxhkd
		  ├─1822 bspwm
		  ├─1824 sxhkd
		  ├─1855 polybar top
		  ├─1869 compton --config /home/jopicornell/.config/compton/config -b
		  ├─1873 redshift
		  ├─1906 dunst
		  ├─1911 /usr/bin/fish -c termite
		  ├─1915 termite
		  ├─1924 /usr/bin/fish
		  └─1992 loginctl session-status

One is Online and the other is active... I've done a quick search but I didn't find anything about online status

seth · 2019-06-09 10:33:55

Post your xinitrc.

jopicornell · 2019-06-09 10:39:45

Here it is!

#!/bin/sh
SXHKD_SHELL=/usr/bin/sh
userresources=$HOME/.Xresources
usermodmap=$HOME/.Xmodmap
sysresources=/etc/X11/xinit/.Xresources
sysmodmap=/etc/X11/xinit/.Xmodmap

# merge in defaults and keymaps

if [ -f $sysresources ]; then
    xrdb -merge $sysresources
fi

if [ -f $sysmodmap ]; then
    xmodmap $sysmodmap
fi

if [ -f "$userresources" ]; then
    xrdb -merge "$userresources"

fi

if [ -f "$usermodmap" ]; then
    xmodmap "$usermodmap"
fi

# start some nice programs

if [ -d /etc/X11/xinit/xinitrc.d ] ; then
 for f in /etc/X11/xinit/xinitrc.d/?*.sh ; do
  [ -x "$f" ] && . "$f"
 done
 unset f
fi
setxkbmap -layout es
sxhkd &
bspwm
#i3

In case you are wondering what's on xinitrc.d folder scripts, there's one script that may interest you:

#!/bin/sh

systemctl --user import-environment DISPLAY XAUTHORITY

if command -v dbus-update-activation-environment >/dev/null 2>&1; then
        dbus-update-activation-environment DISPLAY XAUTHORITY
fi

The others are cadence and gtk modules.

Last edited by jopicornell (2019-06-09 10:40:22)

seth · 2019-06-09 10:46:04

Yeah that's the crucial (and often omitted) bit. Still the online state means the session is not in the foreground.
That's either because you ran this from a different TTY or because bspwm doesn't replace the xinit process (lacking "exec") - I never tried what effect the latter has on the state.

jopicornell · 2019-06-09 10:51:21

Great info! thank you.

I'll review my xinitrc and bspwm scripts to see if there's something I can improve. I'll have to research about sessions and the state of them. I've reviewed the man of loginctl, systemd and sd-login but there's no info about states. Any man or documentation useful about sessions on online state?

seth · 2019-06-09 10:56:17

https://www.freedesktop.org/wiki/Softwa … md/logind/
https://www.freedesktop.org/software/sy … state.html

Arch Linux

#1 2019-06-08 10:10:10

[Solved] Udev being ignored after xinit command (inside my wm)

#2 2019-06-08 13:10:10

Re: [Solved] Udev being ignored after xinit command (inside my wm)

#3 2019-06-09 08:53:40

Re: [Solved] Udev being ignored after xinit command (inside my wm)

#4 2019-06-09 10:33:55

Re: [Solved] Udev being ignored after xinit command (inside my wm)

#5 2019-06-09 10:39:45

Re: [Solved] Udev being ignored after xinit command (inside my wm)

#6 2019-06-09 10:46:04

Re: [Solved] Udev being ignored after xinit command (inside my wm)

#7 2019-06-09 10:51:21

Re: [Solved] Udev being ignored after xinit command (inside my wm)

#8 2019-06-09 10:56:17

Re: [Solved] Udev being ignored after xinit command (inside my wm)

Board footer