[OE-core] [PATCH 1/1] libpam: add system-auth in case of systemd

[Koen Kooi]

> Op 31 okt. 2014, om 03:59 heeft ChenQi <Qi.Chen at windriver.com> het volgende geschreven:
> 
> On 10/30/2014 09:27 PM, Koen Kooi wrote:
>>> Op 30 okt. 2014, om 10:08 heeft Chen Qi <Qi.Chen at windriver.com> het volgende geschreven:
>>> 
>>> systemd needs this file to be there because one of its configuration file
>>> in pam.d, systemd-user, requires it. Otherwise, we would have errors like
>>> below.
>>> 
>>>    systemd: PAM _pam_load_conf_file: unable to open /etc/pam.d/system-auth
>> Isn't it the same as 'common-auth'? ISTR this is due to debian vs fedora naming of PAM stuff. I think it would make more sense to check what systemd actually wants and then see if a symlink to common-auth or patching systemd to use common-auth is the right answer instead of blindly adding system-auth.
>> 
>> regards,
>> 
>> Koen
>> 
> 
> Hi Koen,
> 
> An alternative is to patch systemd's source code to change the systemd-user configuration file.
> 
> In fact, I have seen patches in OE whose purpose is merely changing 'system-auth' to 'common-auth' in the pam configuration files of the packages.
> 
> So we have two options here:
> 1. Provide system-auth
> 2. Patch packages that make use of system-auth and maintain those patches.
> 
> I think solution 1 is more reasonable but if you and other people in community think that solution 2 can bring us more benefits, I can send out a patch using solution 2.

Solution 1) introduces a new PAM file that seems to do the same as one of the common-<foo> files we have. So from a reuse and maintainability standpoint 2) would be better.

regards,

Koen



> 
> Best Regards,
> Chen Qi
> 
>>> Signed-off-by: Chen Qi <Qi.Chen at windriver.com>
>>> ---
>>> meta/recipes-extended/pam/libpam/pam.d/system-auth | 12 ++++++++++++
>>> meta/recipes-extended/pam/libpam_1.1.6.bb          |  1 +
>>> 2 files changed, 13 insertions(+)
>>> create mode 100644 meta/recipes-extended/pam/libpam/pam.d/system-auth
>>> 
>>> diff --git a/meta/recipes-extended/pam/libpam/pam.d/system-auth b/meta/recipes-extended/pam/libpam/pam.d/system-auth
>>> new file mode 100644
>>> index 0000000..ffb08ab
>>> --- /dev/null
>>> +++ b/meta/recipes-extended/pam/libpam/pam.d/system-auth
>>> @@ -0,0 +1,12 @@
>>> +# This file comes from systemd.
>>> +
>>> +auth     sufficient pam_unix.so nullok try_first_pass
>>> +
>>> +account  required   pam_nologin.so
>>> +account  sufficient pam_unix.so
>>> +
>>> +password sufficient pam_unix.so nullok sha512 shadow try_first_pass try_authtok
>>> +
>>> +-session optional   pam_loginuid.so
>>> +-session optional   pam_systemd.so
>>> +session  sufficient pam_unix.so
>>> diff --git a/meta/recipes-extended/pam/libpam_1.1.6.bb b/meta/recipes-extended/pam/libpam_1.1.6.bb
>>> index a84e51e..0910b6f 100644
>>> --- a/meta/recipes-extended/pam/libpam_1.1.6.bb
>>> +++ b/meta/recipes-extended/pam/libpam_1.1.6.bb
>>> @@ -17,6 +17,7 @@ SRC_URI = "http://linux-pam.org/library/Linux-PAM-${PV}.tar.bz2 \
>>>            file://pam.d/common-session \
>>>            file://pam.d/common-session-noninteractive \
>>>            file://pam.d/other \
>>> +           ${@bb.utils.contains('DISTRO_FEATURES', 'systemd', 'file://pam.d/system-auth', '', d)} \
>>>            file://libpam-xtests.patch \
>>>            file://destdirfix.patch \
>>>            file://fixsepbuild.patch \
>>> -- 
>>> 1.9.1
>>> 
>>> -- 
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>>> 
>> 
> 
>