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SubjectRe: [PATCH 05/10] KConfig: Add KConfig entries for Labeled NFS
On Wed, Jul 07, 2010 at 10:31:21AM -0400, David P. Quigley wrote:
> This patch adds two entries into the fs/KConfig file. The first entry
> NFS_V4_SECURITY_LABEL enables security label support for the NFSv4 client while
> the second entry NFSD_V4_SECURITY_LABEL enables security labeling support on
> the server side.

Will there also be some way to turn these on and off at run-time (maybe
for particular exports or filesystems?)

And if so, will there be any reason not to have this on all the time? I
don't think we'll want a config option for every future possible NFSv4.x
feature.

--b.

>
> Signed-off-by: Matthew N. Dodd <Matthew.Dodd@sparta.com>
> Signed-off-by: David P. Quigley <dpquigl@tycho.nsa.gov>
> ---
> fs/nfs/Kconfig | 16 ++++++++++++++++
> fs/nfsd/Kconfig | 13 +++++++++++++
> 2 files changed, 29 insertions(+), 0 deletions(-)
>
> diff --git a/fs/nfs/Kconfig b/fs/nfs/Kconfig
> index a43d07e..67b158c 100644
> --- a/fs/nfs/Kconfig
> +++ b/fs/nfs/Kconfig
> @@ -83,6 +83,22 @@ config NFS_V4_1
>
> Unless you're an NFS developer, say N.
>
> +config NFS_V4_SECURITY_LABEL
> + bool "Provide Security Label support for NFSv4 client"
> + depends on NFS_V4 && SECURITY
> + help
> +
> + Say Y here if you want enable fine-grained security label attribute
> + support for NFS version 4. Security labels allow security modules like
> + SELinux and Smack to label files to facilitate enforcement of their policies.
> + Without this an NFSv4 mount will have the same label on each file.
> +
> + If you do not wish to enable fine-grained security labels SELinux or
> + Smack policies on NFSv4 files, say N.
> +
> +
> + If unsure, say N.
> +
> config ROOT_NFS
> bool "Root file system on NFS"
> depends on NFS_FS=y && IP_PNP
> diff --git a/fs/nfsd/Kconfig b/fs/nfsd/Kconfig
> index 503b9da..3a282f8 100644
> --- a/fs/nfsd/Kconfig
> +++ b/fs/nfsd/Kconfig
> @@ -79,3 +79,16 @@ config NFSD_V4
> available from http://linux-nfs.org/.
>
> If unsure, say N.
> +
> +config NFSD_V4_SECURITY_LABEL
> + bool "Provide Security Label support for NFSv4 server"
> + depends on NFSD_V4 && SECURITY
> + help
> +
> + Say Y here if you want enable fine-grained security label attribute
> + support for NFS version 4. Security labels allow security modules like
> + SELinux and Smack to label files to facilitate enforcement of their policies.
> + Without this an NFSv4 mount will have the same label on each file.
> +
> + If you do not wish to enable fine-grained security labels SELinux or
> + Smack policies on NFSv4 files, say N.
> --
> 1.6.2.5
>


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