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smb3: improve check for when we send the security descriptor context on create

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We had cases in the previous patch where we were sending the security
descriptor context on SMB3 open (file create) in cases when we hadn't
mounted with with "modefromsid" mount option.

Add check for that mount flag before calling ad_sd_context in
open init.

Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
This commit is contained in:
Steve French 2019-12-07 17:38:22 -06:00
parent fdef665ba4
commit 231e2a0ba5
1 changed files with 2 additions and 0 deletions
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2
fs/cifs/smb2pdu.c
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@ -2630,6 +2630,8 @@ SMB2_open_init(struct cifs_tcon *tcon, struct smb_rqst *rqst, __u8 *oplock,
}
if ((oparms->disposition != FILE_OPEN) &&
(oparms->cifs_sb) &&
(oparms->cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MODE_FROM_SID) &&
(oparms->mode != ACL_NO_MODE)) {
if (n_iov > 2) {
struct create_context *ccontext =