Re: [PATCH v2] cifscreds: add a check and warnings for session keyring problems

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Jeff Layton píše v Čt 19. 07. 2012 v 09:35 -0400:
> Many distros do not call into pam_keyinit to set up the session keyring
> properly at login time. When cifscreds add is used in such a session,
> the kernel will spawn a new session keyring in which to install the
> credentials. That keyring will then go away once the cifscreds process
> exits.

How does one arrange that the session keyring is set up properly for
various login methods?

I added "session optional pam_keyinit.so force revoke"
into /etc/pam.d/login and /etc/pam.d/sshd and "cifscreds add" works fine
when logged in console (alt+f2) or via ssh.
Session Keyring
 812231719 --alswrv   1001   100  keyring: _ses
 132272983 --alswrv   1001    -1   \_ keyring: _uid.1001
1046511393 ----sw-v   1001   100   \_ logon: cifs:a:192.168.1.3


pam_keyinit.so was already in /etc/pam.d/gdm-password, though when
logged in into Xfce from GDM, then "cifscreds add" typed in
xfce4-terminal complains about non-persistent keyring.

I can see that the name of the top level keyring differs for Xfce session:
Session Keyring
 666176370 --alswrv   1001    -1  keyring: _uid_ses.1001
 132272983 --alswrv   1001    -1   \_ keyring: _uid.1001

Does anyone know if that is some GDM bug/feature and how avoid it?

Sorry if being off-topic here, though I guess it might help others who
will run into the problems with cifscreds, too.

Regards,
Milan



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