Re: [RFC] getgroups2 system call

[yamt%mwd.biglobe.ne.jp@localhost (YAMAMOTO Takashi)]

hi,

> On Wed, Dec 14, 2011 at 07:45:11AM +0000, YAMAMOTO Takashi wrote:
>> do you mean to implement fuse_getgroups for NetBSD with the sysctl?
>> if you are adding a #ifdef NetBSD block to the fuse, can't it use
>> a NetBSD-specific sidechannel to get the info from an appropriate
>> puffs-supplied uucred?
> 
> FUSE filesystems are not PUFFS servers, they do not have access to
> PUFFS-supplied uucred. perfused is the PUFFS server. It has the data, 
> but in order to pass it to the FUSE filesystem, the FUSE protocol 
> neds to be extended. As I explained in another post, I have not been
> able to get consensus from FUSE maintainers on this extension. Therefore
> I have to fallback to asynchronous fecth of secondary groups through 
> a system call. 

i'm unclear why you want a system call.
in my understanding, fuse_getgroups needs to talk with perfused, not kernel.
so i suggested creating a side channel between fuse_getgroups and perfused.

YAMAMOTO Takashi

> 
> -- 
> Emmanuel Dreyfus
> manu%netbsd.org@localhost