From: Steve French <stfrench@microsoft.com>
Date: Thu, 11 Apr 2019 13:53:17 -0500
Subject: [PATCH] SMB3: Add handling for different FSCTL access flags
Git-commit: 46e6661963fb5d55952b550f0716bda22e10f1ae
Patch-mainline: v5.2-rc1
References: bsc#1144333

DesiredAccess field in SMB3 open request needs
to be set differently for READ vs. WRITE ioctls
(not just ones that request both).

Originally noticed by Pavel

Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Acked-by: Paulo Alcantara <palcantara@suse.de>
---
 fs/cifs/smb2ops.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index ed8c2ba9590b..08ff044fbb4b 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -1389,7 +1389,15 @@ smb2_ioctl_query_info(const unsigned int xid,
 		switch (qi.info_type & FSCTL_DEVICE_ACCESS_MASK) {
 		case FSCTL_DEVICE_ACCESS_FILE_READ_WRITE_ACCESS:
 			oparms.desired_access = FILE_READ_DATA | FILE_WRITE_DATA | FILE_READ_ATTRIBUTES | SYNCHRONIZE;
-			;
+			break;
+		case FSCTL_DEVICE_ACCESS_FILE_ANY_ACCESS:
+			oparms.desired_access = GENERIC_ALL;
+			break;
+		case FSCTL_DEVICE_ACCESS_FILE_READ_ACCESS:
+			oparms.desired_access = GENERIC_READ;
+			break;
+		case FSCTL_DEVICE_ACCESS_FILE_WRITE_ACCESS:
+			oparms.desired_access = GENERIC_WRITE;
 			break;
 		}
 	}
-- 
2.22.0