smb3: update protocol header definitions based to include new flags

[MS-SMB2] protocol specification was recently updated to include
new flags, new negotiate context and some minor changes to fields.
Update smb2pdu.h structure definitions to match the newest version
of the protocol specification.  Updates to the compression context
values will be in a followon patch.

Signed-off-by: Steve French <stfrench@microsoft.com>

diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index a5a9e33..d6cd6e6 100644 (file)
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -181,7 +181,11 @@ struct smb2_rdma_transform {
        __le32 Reserved2;
 } __packed;
 
-struct smb2_rdma_encryption_transform {
+/* TransformType */
+#define SMB2_RDMA_TRANSFORM_TYPE_ENCRYPTION    0x0001
+#define SMB2_RDMA_TRANSFORM_TYPE_SIGNING       0x0002
+
+struct smb2_rdma_crypto_transform {
        __le16  TransformType;
        __le16  SignatureLength;
        __le16  NonceLength;
@@ -409,13 +413,29 @@ struct smb2_netname_neg_context {
 } __packed;
 
 /*
- * For rdma transform capabilities context see MS-SMB2 2.2.3.1.6
+ * For smb2_transport_capabilities context see MS-SMB2 2.2.3.1.5
  * and 2.2.4.1.5
  */
 
+/* Flags */
+#define SMB2_ACCEPT_TRANSFORM_LEVEL_SECURITY   0x00000001
+
+struct smb2_transport_capabilities_context {
+       __le16  ContextType; /* 6 */
+       __le16  DataLength;
+       __u32   Reserved;
+       __le32  Flags;
+} __packed;
+
+/*
+ * For rdma transform capabilities context see MS-SMB2 2.2.3.1.6
+ * and 2.2.4.1.6
+ */
+
 /* RDMA Transform IDs */
 #define SMB2_RDMA_TRANSFORM_NONE       0x0000
 #define SMB2_RDMA_TRANSFORM_ENCRYPTION 0x0001
+#define SMB2_RDMA_TRANSFORM_SIGNING    0x0002
 
 struct smb2_rdma_transform_capabilities_context {
        __le16  ContextType; /* 7 */
@@ -427,6 +447,11 @@ struct smb2_rdma_transform_capabilities_context {
        __le16  RDMATransformIds[];
 } __packed;
 
+/*
+ * For signing capabilities context see MS-SMB2 2.2.3.1.7
+ * and 2.2.4.1.7
+ */
+
 /* Signing algorithms */
 #define SIGNING_ALG_HMAC_SHA256        0
 #define SIGNING_ALG_AES_CMAC   1
@@ -634,7 +659,8 @@ struct smb2_tree_connect_rsp {
 #define SHI1005_FLAGS_ENABLE_HASH_V2                   0x00004000
 #define SHI1005_FLAGS_ENCRYPT_DATA                     0x00008000
 #define SMB2_SHAREFLAG_IDENTITY_REMOTING               0x00040000 /* 3.1.1 */
-#define SHI1005_FLAGS_ALL                              0x0004FF33
+#define SMB2_SHAREFLAG_COMPRESS_DATA                   0x00100000 /* 3.1.1 */
+#define SHI1005_FLAGS_ALL                              0x0014FF33
 
 /* Possible share capabilities */
 #define SMB2_SHARE_CAP_DFS     cpu_to_le32(0x00000008) /* all dialects */
@@ -1390,7 +1416,11 @@ struct smb2_lock_req {
        struct smb2_sync_hdr sync_hdr;
        __le16 StructureSize; /* Must be 48 */
        __le16 LockCount;
-       __le32 Reserved;
+       /*
+        * The least significant four bits are the index, the other 28 bits are
+        * the lock sequence number (0 to 64). See MS-SMB2 2.2.26
+        */
+       __le32 LockSequenceNumber;
        __u64  PersistentFileId; /* opaque endianness */
        __u64  VolatileFileId; /* opaque endianness */
        /* Followed by at least one */