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diff --git a/source3/smbd/smb2_pipes.c b/source3/smbd/smb2_pipes.c
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+/*
+ Unix SMB/CIFS implementation.
+ Pipe SMB reply routines
+ Copyright (C) Andrew Tridgell 1992-1998
+ Copyright (C) Luke Kenneth Casson Leighton 1996-1998
+ Copyright (C) Paul Ashton 1997-1998.
+ Copyright (C) Jeremy Allison 2005.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+/*
+ This file handles reply_ calls on named pipes that the server
+ makes to handle specific protocols
+*/
+
+
+#include "includes.h"
+#include "smbd/smbd.h"
+#include "smbd/globals.h"
+#include "libcli/security/security.h"
+#include "rpc_server/srv_pipe_hnd.h"
+#include "auth/auth_util.h"
+#include "librpc/rpc/dcerpc_helper.h"
+
+NTSTATUS open_np_file(struct smb_request *smb_req, const char *name,
+ struct files_struct **pfsp)
+{
+ struct smbXsrv_connection *xconn = smb_req->xconn;
+ struct connection_struct *conn = smb_req->conn;
+ struct files_struct *fsp;
+ struct smb_filename *smb_fname = NULL;
+ struct auth_session_info *session_info = conn->session_info;
+ NTSTATUS status;
+
+ status = file_new(smb_req, conn, &fsp);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("file_new failed: %s\n", nt_errstr(status)));
+ return status;
+ }
+
+ fsp->conn = conn;
+ fsp_set_fd(fsp, -1);
+ fsp->vuid = smb_req->vuid;
+ fsp->fsp_flags.can_lock = false;
+ fsp->access_mask = FILE_READ_DATA | FILE_WRITE_DATA;
+
+ smb_fname = synthetic_smb_fname(talloc_tos(),
+ name,
+ NULL,
+ NULL,
+ 0,
+ 0);
+ if (smb_fname == NULL) {
+ file_free(smb_req, fsp);
+ return NT_STATUS_NO_MEMORY;
+ }
+ status = fsp_set_smb_fname(fsp, smb_fname);
+ TALLOC_FREE(smb_fname);
+ if (!NT_STATUS_IS_OK(status)) {
+ file_free(smb_req, fsp);
+ return status;
+ }
+
+ if (smb_req->smb2req != NULL && smb_req->smb2req->was_encrypted) {
+ struct security_token *security_token = NULL;
+ uint16_t dialect = xconn->smb2.server.dialect;
+ uint16_t srv_smb_encrypt = DCERPC_SMB_ENCRYPTION_REQUIRED;
+ uint16_t cipher = xconn->smb2.server.cipher;
+ struct dom_sid smb3_sid = global_sid_Samba_SMB3;
+ size_t num_smb3_sids;
+ bool ok;
+
+ session_info = copy_session_info(fsp, conn->session_info);
+ if (session_info == NULL) {
+ DBG_ERR("Failed to copy session info\n");
+ file_free(smb_req, fsp);
+ return NT_STATUS_NO_MEMORY;
+ }
+ security_token = session_info->security_token;
+
+ /*
+ * Security check:
+ *
+ * Make sure we don't have a SMB3 SID in the security token!
+ */
+ num_smb3_sids = security_token_count_flag_sids(security_token,
+ &smb3_sid,
+ 3,
+ NULL);
+ if (num_smb3_sids != 0) {
+ DBG_ERR("ERROR: %zu SMB3 SIDs have already been "
+ "detected in the security token!\n",
+ num_smb3_sids);
+ file_free(smb_req, fsp);
+ return NT_STATUS_ACCESS_DENIED;
+ }
+
+ ok = sid_append_rid(&smb3_sid, dialect);
+ ok &= sid_append_rid(&smb3_sid, srv_smb_encrypt);
+ ok &= sid_append_rid(&smb3_sid, cipher);
+
+ if (!ok) {
+ DBG_ERR("sid too small\n");
+ file_free(smb_req, fsp);
+ return NT_STATUS_BUFFER_TOO_SMALL;
+ }
+
+ status = add_sid_to_array_unique(security_token,
+ &smb3_sid,
+ &security_token->sids,
+ &security_token->num_sids);
+ if (!NT_STATUS_IS_OK(status)) {
+ DBG_ERR("Failed to add SMB3 SID to security token\n");
+ file_free(smb_req, fsp);
+ return status;
+ }
+
+ fsp->fsp_flags.encryption_required = true;
+ }
+
+ status = np_open(fsp, name,
+ conn->sconn->remote_address,
+ conn->sconn->local_address,
+ session_info,
+ conn->sconn->ev_ctx,
+ conn->sconn->msg_ctx,
+ conn->sconn->dce_ctx,
+ &fsp->fake_file_handle);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(10, ("np_open(%s) returned %s\n", name,
+ nt_errstr(status)));
+ file_free(smb_req, fsp);
+ return status;
+ }
+
+ *pfsp = fsp;
+
+ return NT_STATUS_OK;
+}