Date: Wed, 13 Apr 2011 14:37:54 -0700 From: Jonathan Stuart <jstuart@adaranet.com> To: Matthew Fleming <mdf356@gmail.com> Cc: "freebsd-hackers@freebsd.org" <freebsd-hackers@freebsd.org> Subject: RE: Getting vnode + credentials of a file from a struct mount and UFS inode # Message-ID: <32AB5C9615CC494997D9ABB1DB12783C024E929FDC@SJ-EXCH-1.adaranet.com> In-Reply-To: <BANLkTimZagyfkPBQOr4FjsL_oAHhx6F%2B1Q@mail.gmail.com> References: <32AB5C9615CC494997D9ABB1DB12783C024E929F93@SJ-EXCH-1.adaranet.com> <BANLkTi=hDuVxLSaC5Y4LTwV_Hqv8nT9JDw@mail.gmail.com> <32AB5C9615CC494997D9ABB1DB12783C024E929FD0@SJ-EXCH-1.adaranet.com> <BANLkTimZagyfkPBQOr4FjsL_oAHhx6F%2B1Q@mail.gmail.com>
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Yes, however getvnode() does initialize a struct file *.. but f_cred seems =
to not contain valid/correct entries.
In my last post I probably should have pointed out that I have the inode st=
ored from another operation.
Jon
-----Original Message-----
From: Matthew Fleming [mailto:mdf356@gmail.com]
Sent: Wednesday, April 13, 2011 2:35 PM
To: Jonathan Stuart
Cc: freebsd-hackers@freebsd.org
Subject: Re: Getting vnode + credentials of a file from a struct mount and =
UFS inode #
On Wed, Apr 13, 2011 at 2:18 PM, Jonathan Stuart <jstuart@adaranet.com> wro=
te:
> Hi Matthew,
>
> Thanks, I'll give it a shot.. for some reason f_cred off the vnode is ret=
urning all zeros for uid/gid, and
> pulling the VTOI does the same thing (using getvnode()).. do these not ge=
t initialized properly?
f_cred is a field in struct file, not struct vnode, so I'm confused as
to what you're referring to.
Cheers,
matthew
> -----Original Message-----
> From: Matthew Fleming [mailto:mdf356@gmail.com]
> Sent: Wednesday, April 13, 2011 1:48 PM
> To: Jonathan Stuart
> Cc: freebsd-hackers@freebsd.org
> Subject: Re: Getting vnode + credentials of a file from a struct mount an=
d UFS inode #
>
> On Wed, Apr 13, 2011 at 12:31 PM, Jonathan Stuart <jstuart@adaranet.com> =
wrote:
>> Hi,
>>
>> I'd like to pull the owner/group ownership from a file (the information =
I have about the file is it's UFS inode # and it's struct mount *). I'm su=
re there's got to be a function that would return a vnode and I could VTOI(=
) to get this information from the inode.. but I'm having a brainfreeze.
>>
>
> VFS_VGET(mp, ino, flags, &vp) is probably what you want.
>
> Cheers,
> matthew
>
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