[PATCH 1/1] passwd: Support passwd file custom directory

[Jean-Christophe PLAGNIOL-VILLARD]

On Jul 3, 2014, at 3:36 PM, Herve Codina <herve.codina at celad.com> wrote:

> 
> 
> 
> Le 03/07/2014 08:57, Jean-Christophe PLAGNIOL-VILLARD a écrit :
>> 
>> On Jul 3, 2014, at 2:54 PM, Sascha Hauer <s.hauer at pengutronix.de> wrote:
>> 
>>> 
>>> On Wed, Jul 02, 2014 at 08:45:28AM +0200, Herve Codina wrote:
>>>> Hi,
>>>> 
>>>> I haven't got any news about this patch.
>>>> Has it been reviewed ?
>>>> 
>>>> I hope it was not lost in the flow of other patches.
>>>> If so, i can resend it.
>>> 
>>> Sorry, I have seen it but then forgot to write an answer.
>>> 
>>>>> diff --git a/include/password.h b/include/password.h
>>>>> index 0dd1054..9d84685 100644
>>>>> --- a/include/password.h
>>>>> +++ b/include/password.h
>>>>> @@ -18,8 +18,14 @@
>>>>> #ifndef __PASSWORD_H__
>>>>> #define __PASSWORD_H__
>>>>> 
>>>>> -#define PASSWD_FILE		"/env/etc/passwd"
>>>>> -#define PASSWD_DIR		"/env/etc/"
>>>>> +#ifdef CONFIG_PASSWORD_DIR
>>>>> +#define PASSWD_DIR		CONFIG_PASSWORD_DIR
>>>>> +#else
>>>>> +#define PASSWD_DIR		"/env/etc"
>>>>> +#endif
>>>>> +
>>>>> +#define PASSWD_FILE		PASSWD_DIR"/passwd"
>>> 
>> 
>> I don’t like this idea to have the passwd file configurable
>> 
>> Why do we need thant?
> 
> In my case i have multiple envfs images loaded with loadenv.
> and i need to have passwd file from one of these image.
> I have /env which is my barebox env and /user which is loaded from envfs
> image. I need passwd file in /user/passwd.
> 
> In a more general case, the abilily to have passwd file from a directory
> other than /env can lead, in a very simple way, to the ability to have
> passwd file from a fat filesystem or an ubifs filesystem
> 
> I use #define to set this passwd file because i want to set it at
> compile time and not at runtime.
> 
> If you prefer runtime configuration, i can do the patch according to
> sasha suggestion.

so simply use a symbol link

Best Regards,
J.
> 
> Herve
> 
> 
>>> I don't like this ifdeffery. If you want to have this configurable
>>> please make a
>>> 
>>> static char *passwd_file = "/env/etc/passwd"
>>> 
>>> int set_passwd_file(const char *file)
>>> {
>>> 	passwd_file = file;
>>> }
>>> 
>>> And call it from your board code.
>>> 
>>> Sascha
>>> 
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>>