[Bug 570944] Re: passwd : gives "Authentication token manipulation error"

[urusha]

Here is my solution:
1) copy "winbind" "winbind-noauthtok" "unix-noauthtok" files from attachments to /usr/share/pam-configs/ (with overwrite)
2) copy "pam_winbind.conf" from attachment to /etc/security/
3) run pam-auth-update and check "Unix authentication (no use_authtok)" & "Winbind NT/Active Directory authentication (no use_authtok)", also uncheck "Unix authentication" & "Winbind NT/Active Directory authentication"
4) use it

What it is:
1) new configs.
  1. winbind - is the same as default winbind (you need to overwrite it) but:
    a) without krb5_*, cached_login options, I think these should be placed in special config file /etc/security/pam_winbind.conf - this is much more customizable way to configure pam_winbind without any involving of pam-auth-update. Also this solves bug about not getting krb ticket and ccache when changing expired password on login (pam_winbind passwd section should contain krb5_* options too, but it doesn't)
    b) increased "Priority", it's to solve buggy changing expired password on login. Winbind should be before unix (like pam_krb5 does)
  2. winbind-noauthtok, unix-noauthtok - is the same as winbind and unix, but without use_authtok option. These configs conflicts with winbind, unix and cracklib, so you can't install winbind-noauthtok with winbind or cracklib
2) see 1-1-a
3) just changing configs in /etc/pam.d/ "the right" way
4) this solution has the next advantages:
  1. customizable - you may choose: use cracklib or not, pam-auth-update suggests different ways
  2. solves some existing bugs: allows you to change unix, wb password via passwd command (or any other graphical tools); allows to change expired unix, wb password on login; gets krb ticket and ccache after wb expired password has been changed; maybe some others...

To packages supporters:
  Why not to implement this in all pam modules packages (add unix, unix-noauthtok in libpam-runtime for example), while thinking about upgrading whole pam system?
  It would be really nice to add function of detecting if use use_authtok or not to pam-auth-update (just read configs of higher priority modules).

Some offtopic (to pam-auth-update supporters):
  Even if I use pam_winbind.conf option "mkhomedir = yes" it doesn't copy skel directory to new user home. So I'm forced to use pam_mkhomedir. But if I create config for it in /usr/share/pam-configs, it adds lines about making home derictories to /etc/pam.d/common-session-noninteractive too, and this is really BAD behavior. So the right way is to implement "Session-noninteractive:" section in config files, I think.

Thanks for attantion.

** Attachment added: "winbind"
   https://bugs.launchpad.net/ubuntu/+source/samba/+bug/570944/+attachment/2391119/+files/winbind

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Title:
  passwd : gives "Authentication token manipulation error"

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