This is a note to let you know that I've just added the patch titled
setfacl removes part of ACL when setting POSIX ACLs to Samba
to the 3.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
setfacl-removes-part-of-acl-when-setting-posix-acls-to-samba.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From baf48b7f96f5cd7f8b510dba67bcbdf96df296ff Mon Sep 17 00:00:00 2001
From: Steve French <smfrench@xxxxxxxxx>
Date: Fri, 15 Nov 2013 20:41:32 -0600
Subject: setfacl removes part of ACL when setting POSIX ACLs to Samba
From: Steve French <smfrench@xxxxxxxxx>
commit b1d93356427be6f050dc55c86eb019d173700af6 upstream.
setfacl over cifs mounts can remove the default ACL when setting the
(non-default part of) the ACL and vice versa (we were leaving at 0
rather than setting to -1 the count field for the unaffected
half of the ACL. For example notice the setfacl removed
the default ACL in this sequence:
steven@steven-GA-970A-DS3:~/cifs-2.6$ getfacl /mnt/test-dir ; setfacl
-m default:user:test:rwx,user:test:rwx /mnt/test-dir
getfacl: Removing leading '/' from absolute path names
user::rwx
group::r-x
other::r-x
default:user::rwx
default:user:test:rwx
default:group::r-x
default:mask::rwx
default:other::r-x
steven@steven-GA-970A-DS3:~/cifs-2.6$ getfacl /mnt/test-dir
getfacl: Removing leading '/' from absolute path names
user::rwx
user:test:rwx
group::r-x
mask::rwx
other::r-x
Signed-off-by: Steve French <smfrench@xxxxxxxxx>
Acked-by: Jeremy Allison <jra@xxxxxxxxx>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
Cc: Rui Xiang <rui.xiang@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/cifs/cifssmb.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -3454,11 +3454,13 @@ static __u16 ACL_to_cifs_posix(char *par
return 0;
}
cifs_acl->version = cpu_to_le16(1);
- if (acl_type == ACL_TYPE_ACCESS)
+ if (acl_type == ACL_TYPE_ACCESS) {
cifs_acl->access_entry_count = cpu_to_le16(count);
- else if (acl_type == ACL_TYPE_DEFAULT)
+ cifs_acl->default_entry_count = __constant_cpu_to_le16(0xFFFF);
+ } else if (acl_type == ACL_TYPE_DEFAULT) {
cifs_acl->default_entry_count = cpu_to_le16(count);
- else {
+ cifs_acl->access_entry_count = __constant_cpu_to_le16(0xFFFF);
+ } else {
cFYI(1, "unknown ACL type %d", acl_type);
return 0;
}
Patches currently in stable-queue which might be from smfrench@xxxxxxxxx are
queue-3.4/setfacl-removes-part-of-acl-when-setting-posix-acls-to-samba.patch
queue-3.4/cifs-fix-error-handling-in-cifs_push_mandatory_locks.patch
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