On 07/ 7/10 12:56 PM, J. Bruce Fields wrote:
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.
I would guess that the ability to build without this feature would be
desirable if it added significant bulk to the object code. If it
doesn't, then I agree with you that having it adds unneeded clutter to
the code, and additional complexity to kernel configuration that most
people will ignore and/or get wrong.
Signed-off-by: Matthew N. Dodd<Matthew.Dodd@xxxxxxxxxx>
Signed-off-by: David P. Quigley<dpquigl@xxxxxxxxxxxxx>
---
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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