From a9c23729f253f65825466cfef965d259ec35a54c Mon Sep 17 00:00:00 2001
From: Andrew Tridgell <tridge@samba.org>
Date: Sat, 16 Jun 2007 17:13:42 +0000
Subject: [PATCH] r23519: added libcli code for fetching shadow copy
 information

---
 source/libcli/config.mk        |  3 +-
 source/libcli/raw/interfaces.h | 15 +++++++
 source/libcli/raw/rawrequest.c |  6 +--
 source/libcli/raw/rawshadow.c  | 79 ++++++++++++++++++++++++++++++++++
 4 files changed, 99 insertions(+), 4 deletions(-)
 create mode 100644 source/libcli/raw/rawshadow.c

diff --git a/source/libcli/config.mk b/source/libcli/config.mk
index 74af8185e..d49fc90ec 100644
--- a/source/libcli/config.mk
+++ b/source/libcli/config.mk
@@ -147,6 +147,7 @@ OBJ_FILES = raw/rawfile.o \
 		raw/rawioctl.o \
 		raw/rawacl.o \
 		raw/rawdate.o \
-		raw/rawlpq.o
+		raw/rawlpq.o \
+		raw/rawshadow.o
 
 include smb2/config.mk
diff --git a/source/libcli/raw/interfaces.h b/source/libcli/raw/interfaces.h
index 93d8dd2c2..210fb1ccc 100644
--- a/source/libcli/raw/interfaces.h
+++ b/source/libcli/raw/interfaces.h
@@ -2632,4 +2632,19 @@ struct smb_echo {
 	} out;
 };
 
+/*
+  struct for shadow copy volumes
+ */
+struct smb_shadow_copy {
+	struct {
+		union smb_handle file;
+		uint32_t max_data;
+	} in;
+	struct {
+		uint32_t num_volumes;
+		uint32_t num_names;
+		const char **names;
+	} out;
+};
+
 #endif /* __LIBCLI_RAW_INTERFACES_H__ */
diff --git a/source/libcli/raw/rawrequest.c b/source/libcli/raw/rawrequest.c
index 7d1bfdb30..a0dfe7509 100644
--- a/source/libcli/raw/rawrequest.c
+++ b/source/libcli/raw/rawrequest.c
@@ -737,9 +737,9 @@ NTTIME smbcli_pull_nttime(void *base, uint16_t offset)
   on failure zero is returned and *dest is set to NULL, otherwise the number
   of bytes consumed in the blob is returned
 */
-static size_t smbcli_blob_pull_ucs2(TALLOC_CTX* mem_ctx,
-				    const DATA_BLOB *blob, const char **dest, 
-				    const uint8_t *src, int byte_len, uint_t flags)
+size_t smbcli_blob_pull_ucs2(TALLOC_CTX* mem_ctx,
+			     const DATA_BLOB *blob, const char **dest, 
+			     const uint8_t *src, int byte_len, uint_t flags)
 {
 	int src_len, src_len2, alignment=0;
 	ssize_t ret;
diff --git a/source/libcli/raw/rawshadow.c b/source/libcli/raw/rawshadow.c
new file mode 100644
index 000000000..428ebc9f8
--- /dev/null
+++ b/source/libcli/raw/rawshadow.c
@@ -0,0 +1,79 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   shadow copy file operations
+
+   Copyright (C) Andrew Tridgell 2007
+   
+   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 2 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, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+#include "libcli/raw/libcliraw.h"
+#include "libcli/raw/ioctl.h"
+
+/* 
+   get shadow volume data
+*/
+_PUBLIC_ NTSTATUS smb_raw_shadow_data(struct smbcli_tree *tree, 
+				      TALLOC_CTX *mem_ctx, struct smb_shadow_copy *info)
+{
+	union smb_ioctl nt;
+	NTSTATUS status;
+	DATA_BLOB blob;
+	uint32_t dlength;
+	int i;
+	uint32_t ofs;
+
+	nt.ntioctl.level        = RAW_IOCTL_NTIOCTL;
+	nt.ntioctl.in.function  = FSCTL_GET_SHADOW_COPY_DATA;
+	nt.ntioctl.in.file.fnum = info->in.file.fnum;
+	nt.ntioctl.in.fsctl     = True;
+	nt.ntioctl.in.filter    = 0;
+	nt.ntioctl.in.max_data  = info->in.max_data;
+	nt.ntioctl.in.blob      = data_blob(NULL, 0);
+
+	status = smb_raw_ioctl(tree, mem_ctx, &nt);
+	
+	blob = nt.ntioctl.out.blob;
+
+	if (blob.length < 12) {
+		return NT_STATUS_INVALID_NETWORK_RESPONSE;
+	}
+	
+	info->out.num_volumes = IVAL(blob.data, 0);
+	info->out.num_names   = IVAL(blob.data, 4);
+	dlength               = IVAL(blob.data, 8);
+	if (dlength > blob.length - 12) {
+		return NT_STATUS_INVALID_NETWORK_RESPONSE;
+	}
+
+	info->out.names = talloc_array(mem_ctx, const char *, info->out.num_names);
+	NT_STATUS_HAVE_NO_MEMORY(info->out.names);
+
+	ofs = 12;
+	for (i=0;i<info->out.num_names;i++) {
+		size_t len;
+		len = smbcli_blob_pull_ucs2(info->out.names, 
+				      &blob, &info->out.names[i],
+				      blob.data+ofs, -1, STR_TERMINATE);
+		if (len == 0) {
+			return NT_STATUS_INVALID_NETWORK_RESPONSE;
+		}
+		ofs += len;
+	}
+	
+	return status;
+}
-- 
2.34.1