From aa72d09b3130ef61f1be5713b8f2c016ac5bc551 Mon Sep 17 00:00:00 2001
From: Jeremy Allison <jra@samba.org>
Date: Thu, 18 May 2017 13:24:26 -0700
Subject: [PATCH] s3: smbd: Add UCF_GMT_PATHNAME, which represents
 FLAGS2_REPARSE_PATH.

This must be set by a client to use shadow copy (@GMT) paths.

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Uri Simchoni <uri@samba.org>
---
 source3/smbd/filename.c    | 3 +++
 source3/smbd/smb2_create.c | 5 +++++
 source3/smbd/smbd.h        | 5 +++++
 3 files changed, 13 insertions(+)

diff --git a/source3/smbd/filename.c b/source3/smbd/filename.c
index 9586857da0b..fbe8eb4b325 100644
--- a/source3/smbd/filename.c
+++ b/source3/smbd/filename.c
@@ -41,6 +41,9 @@ uint32_t ucf_flags_from_smb_request(struct smb_request *req)
 		if (req->flags2 & FLAGS2_DFS_PATHNAMES) {
 			ucf_flags |= UCF_DFS_PATHNAME;
 		}
+		if (req->flags2 & FLAGS2_REPARSE_PATH) {
+			ucf_flags |= UCF_GMT_PATHNAME;
+		}
 	}
 
 	return ucf_flags;
diff --git a/source3/smbd/smb2_create.c b/source3/smbd/smb2_create.c
index 5a371aeef84..81e081875bc 100644
--- a/source3/smbd/smb2_create.c
+++ b/source3/smbd/smb2_create.c
@@ -925,6 +925,11 @@ static struct tevent_req *smbd_smb2_create_send(TALLOC_CTX *mem_ctx,
 			if (tevent_req_nomem(fname, req)) {
 				return tevent_req_post(req, ev);
 			}
+			/*
+			 * Tell filename_create_ucf_flags() this
+			 * is an @GMT path.
+			 */
+			smb1req->flags2 |= FLAGS2_REPARSE_PATH;
 		}
 
 		if (qfid) {
diff --git a/source3/smbd/smbd.h b/source3/smbd/smbd.h
index d372c7ed771..a3c372b95b1 100644
--- a/source3/smbd/smbd.h
+++ b/source3/smbd/smbd.h
@@ -74,6 +74,11 @@ struct trans_state {
 #define UCF_POSIX_PATHNAMES		0x00000008
 #define UCF_UNIX_NAME_LOOKUP		0x00000010
 #define UCF_PREP_CREATEFILE		0x00000020
+/*
+ * Use the same bit as FLAGS2_REPARSE_PATH
+ * which means the same thing.
+ */
+#define UCF_GMT_PATHNAME		0x00000400
 /*
  * Use the same bit as FLAGS2_DFS_PATHNAMES
  * which means the same thing.