Adding upstream version 2:4.20.0+dfsg.upstream/2%4.20.0+dfsg

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 84 insertions, 0 deletions

diff --git a/source3/modules/util_reparse.c b/source3/modules/util_reparse.c
new file mode 100644
index 0000000..45cacbd
--- /dev/null
+++ b/source3/modules/util_reparse.c
@@ -0,0 +1,84 @@
+/*
+ * Unix SMB/CIFS implementation.
+ * Utility functions for reparse points.
+ *
+ * Copyright (C) Jeremy Allison 2018
+ *
+ * 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/>.
+ */
+
+#include "includes.h"
+#include "util_reparse.h"
+
+NTSTATUS fsctl_get_reparse_point(struct files_struct *fsp,
+				 TALLOC_CTX *mem_ctx,
+				 char **out_data,
+				 uint32_t max_out_len,
+				 uint32_t *out_len)
+{
+	DBG_DEBUG("Called on %s\n", fsp_str_dbg(fsp));
+	return NT_STATUS_NOT_A_REPARSE_POINT;
+}
+
+static NTSTATUS check_reparse_data_buffer(
+	const uint8_t *in_data, size_t in_len)
+{
+	uint16_t reparse_data_length;
+
+	if (in_len == 0) {
+		DBG_DEBUG("in_len=0\n");
+		return NT_STATUS_INVALID_BUFFER_SIZE;
+	}
+	if (in_len < 8) {
+		DBG_DEBUG("in_len=%zu\n", in_len);
+		return NT_STATUS_IO_REPARSE_DATA_INVALID;
+	}
+
+	reparse_data_length = PULL_LE_U16(in_data, 4);
+
+	if (reparse_data_length != (in_len - 8)) {
+		DBG_DEBUG("in_len=%zu, reparse_data_length=%"PRIu16"\n",
+			  in_len,
+			  reparse_data_length);
+		return NT_STATUS_IO_REPARSE_DATA_INVALID;
+	}
+
+	return NT_STATUS_OK;
+}
+
+NTSTATUS fsctl_set_reparse_point(struct files_struct *fsp,
+				 TALLOC_CTX *mem_ctx,
+				 const uint8_t *in_data,
+				 uint32_t in_len)
+{
+	NTSTATUS status;
+
+	DBG_DEBUG("Called on %s\n", fsp_str_dbg(fsp));
+
+	status = check_reparse_data_buffer(in_data, in_len);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	return NT_STATUS_NOT_A_REPARSE_POINT;
+}
+
+NTSTATUS fsctl_del_reparse_point(struct files_struct *fsp,
+				 TALLOC_CTX *mem_ctx,
+				 const uint8_t *in_data,
+				 uint32_t in_len)
+{
+	DBG_DEBUG("Called on %s\n", fsp_str_dbg(fsp));
+	return NT_STATUS_NOT_A_REPARSE_POINT;
+}