From: Steve French <stfrench@microsoft.com>
Date: Fri, 9 Apr 2021 15:20:24 -0500
Subject: [PATCH] smb3: update protocol header definitions based to include new
flags
Git-commit: bb9cad1b49e3123fd7691236be318d4a14e206fe
Patch-mainline: v5.13-rc1
References: bsc#1192606
[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>
Acked-by: Enzo Matsumiya <ematsumiya@suse.de>
---
fs/cifs/smb2pdu.h | 38 ++++++++++++++++++++++++++++++++++----
1 file changed, 34 insertions(+), 4 deletions(-)
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index a5a9e33c0d73..d6cd6e6ff14d 100644
--- 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 */
--
2.33.1