Minor cleanup and add one missing define (COMPRESSION_TRANSFORM_ID)
and flag (TRANSFORM_FLAG_ENCRYPTED)
--
Thanks,
Steve
From 92b1cde9f636aed820a6a759316ba09694a14193 Mon Sep 17 00:00:00 2001
From: Steve French <stfrench@xxxxxxxxxxxxx>
Date: Tue, 17 Mar 2020 01:53:39 -0500
Subject: [PATCH] SMB3: Minor cleanup of protocol definitions
And add one missing define (COMPRESSION_TRANSFORM_ID) and
flag (TRANSFORM_FLAG_ENCRYPTED)
Signed-off-by: Steve French <stfrench@xxxxxxxxxxxxx>
---
fs/cifs/smb2pdu.h | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index 8b9f546dd842..dda928d05c13 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -91,6 +91,7 @@
#define SMB2_PROTO_NUMBER cpu_to_le32(0x424d53fe)
#define SMB2_TRANSFORM_PROTO_NUM cpu_to_le32(0x424d53fd)
+#define SMB2_COMPRESSION_TRANSFORM_ID cpu_to_le32(0x424d53fc)
/*
* SMB2 Header Definition
@@ -127,13 +128,15 @@ struct smb2_sync_pdu {
#define SMB3_AES128CCM_NONCE 11
#define SMB3_AES128GCM_NONCE 12
+/* Transform flags (for 3.0 dialect this flag indicates CCM */
+#define TRANSFORM_FLAG_ENCRYPTED 0x0001
struct smb2_transform_hdr {
__le32 ProtocolId; /* 0xFD 'S' 'M' 'B' */
__u8 Signature[16];
__u8 Nonce[16];
__le32 OriginalMessageSize;
__u16 Reserved1;
- __le16 Flags; /* EncryptionAlgorithm */
+ __le16 Flags; /* EncryptionAlgorithm for 3.0, enc enabled for 3.1.1 */
__u64 SessionId;
} __packed;
@@ -207,6 +210,10 @@ struct smb2_error_context_rsp {
__u8 ErrorContextData; /* ErrorDataLength long array */
} __packed;
+/* ErrorId values */
+#define SMB2_ERROR_ID_DEFAULT 0x00000000
+#define SMB2_ERROR_ID_SHARE_REDIRECT cpu_to_le32(0x72645253) /* "rdRS" */
+
/* Defines for Type field below (see MS-SMB2 2.2.2.2.2.1) */
#define MOVE_DST_IPADDR_V4 cpu_to_le32(0x00000001)
#define MOVE_DST_IPADDR_V6 cpu_to_le32(0x00000002)
@@ -427,7 +434,7 @@ struct smb2_logoff_rsp {
struct smb2_tree_connect_req {
struct smb2_sync_hdr sync_hdr;
__le16 StructureSize; /* Must be 9 */
- __le16 Reserved; /* Flags in SMB3.1.1 */
+ __le16 Flags; /* Reserved MBZ for dialects prior to SMB3.1.1 */
__le16 PathOffset;
__le16 PathLength;
__u8 Buffer[1]; /* variable length */
@@ -654,7 +661,7 @@ struct smb2_tree_disconnect_rsp {
| FILE_WRITE_EA_LE | FILE_WRITE_ATTRIBUTES_LE)
#define FILE_EXEC_RIGHTS_LE (FILE_EXECUTE_LE)
-/* Impersonation Levels */
+/* Impersonation Levels. See MS-WPO section 9.7 and MSDN-IMPERS */
#define IL_ANONYMOUS cpu_to_le32(0x00000000)
#define IL_IDENTIFICATION cpu_to_le32(0x00000001)
#define IL_IMPERSONATION cpu_to_le32(0x00000002)
@@ -760,7 +767,7 @@ struct create_context {
#define SMB2_LEASE_HANDLE_CACHING cpu_to_le32(0x02)
#define SMB2_LEASE_WRITE_CACHING cpu_to_le32(0x04)
-#define SMB2_LEASE_FLAG_BREAK_IN_PROGRESS cpu_to_le32(0x02)
+#define SMB2_LEASE_FLAG_BREAK_IN_PROGRESS cpu_to_le32(0x00000002)
#define SMB2_LEASE_FLAG_PARENT_LEASE_KEY_SET cpu_to_le32(0x00000004)
#define SMB2_LEASE_KEY_SIZE 16
--
2.20.1
