diff options
| author | Steve French <stfrench@microsoft.com> | 2019-06-24 02:01:42 -0500 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2019-07-07 22:37:43 -0500 |
| commit | 412094a8fb0711e9f332bed6723aa59706a4ff7e (patch) | |
| tree | 8c8bb1162dff355aa8c428adda25114eb845905f /fs/cifs/cifsfs.c | |
| parent | d5ecebc4900df7f6e8dff0717574668885110553 (diff) | |
| download | linux-412094a8fb0711e9f332bed6723aa59706a4ff7e.tar.gz | |
smb3: add new mount option to retrieve mode from special ACE
There is a special ACE used by some servers to allow the mode bits to be stored. This can be especially helpful in scenarios in which the client is trusted, and access checking on the client vs the POSIX mode bits is sufficient. Add mount option to allow enabling this behavior. Follow on patch will add support for chmod and queryinfo (stat) by retrieving the POSIX mode bits from the special ACE, SID: S-1-5-88-3 See e.g. https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2008-R2-and-2008/hh509017(v=ws.10) Signed-off-by: Steve French <stfrench@microsoft.com> Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Diffstat (limited to 'fs/cifs/cifsfs.c')
| -rw-r--r-- | fs/cifs/cifsfs.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index dc5fd7a648f0..0ee63ac4ef72 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -526,6 +526,8 @@ cifs_show_options(struct seq_file *s, struct dentry *root) seq_puts(s, ",nobrl"); if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_HANDLE_CACHE) seq_puts(s, ",nohandlecache"); + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MODE_FROM_SID) + seq_puts(s, ",modefromsid"); if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) seq_puts(s, ",cifsacl"); if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM) |