Re: libquota-devel - broken incomplete package ?

[Corinna Vinschen <corinna-cygwin at cygwin dot com>]

On Sep  2 13:39, Pavel Fedin wrote:
>  Hello!
> 
>  I am trying to build NFS-Ganesha, and it includes rquota protocol support,
> which relies on USRQUOTA and GRPQUOTA definitions.
>  After some searching i have found libquota-devel package which should
> apparently be responsible for these. However, inside its only include file i
> read the following comments:
> --- cut ---
>  * The typical way to use the quota library is as follows:
>  * {
>  *	quota_ctx_t qctx;
>  *
>  *	quota_init_context(&qctx, fs, -1);
>  *	{
>  *		quota_compute_usage(qctx, -1);
>  *		AND/OR
>  *		quota_data_add/quota_data_sub/quota_data_inodes();
>  *	}
>  *	quota_write_inode(qctx, USRQUOTA);
>  *	quota_write_inode(qctx, GRPQUOTA);
>  *	quota_release_context(&qctx);
>  * }
> --- cut ---
> 
>  quota_write_inode() declaration is present, however USRQUOTA and GRPQUOTA
> are entirely missing. Even more suspicious thing is include files:
> --- cut ---
> #include "ext2fs/ext2_fs.h"
> #include "ext2fs/ext2fs.h"
> #include "quotaio.h"
> #include "../e2fsck/dict.h"
> --- cut ---
>  quotaio.h is completely missing in /usr/include. What's wrong ? Is the
> package utterly broken ?
> 
>  BTW, just for interest, does Cygwin actually support quotas ? NT OS should
> actually support them i guess...

Sorry, Cygwin doesn't support quota management yet.

It can be added relatively easily, AFAICS.  There are two ntdll system
calls Nt{Query,Set}QuotaInformationFile and a Nt{Query|Set}InformationFile
info class FILE_FS_CONTROL_INFORMATION to switch quoat mgmg on and off,
which roughly provide the functionality of quotactl, at least as far as
the block quota is concerned.  Windows doesn't support inode-based or
time limit-based quota management. 

We can look into implementing this at one point, and patches are
welcome, of course.


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

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