Add missing structs and defines from recent SMB3.1.1 documentation

The last two updates to MS-SMB2 protocol documentation added various
flags and structs (especially relating to SMB3.1.1 tree connect).
Add missing defines and structs to smb2pdu.h
Signed-off-by: NSteve French <smfrench@gmail.com>
Reviewed-by: NRonnie Sahlberg <lsahlber@redhat.com>

fs/cifs/smb2pdu.h

@@ -192,6 +192,35 @@ struct smb2_symlink_err_rsp {
 	__u8  PathBuffer[0];
 } __packed;
 
+/* SMB 3.1.1 and later dialects. See MS-SMB2 section 2.2.2.1 */
+struct smb2_error_context_rsp {
+	__le32 ErrorDataLength;
+	__le32 ErrorId;
+	__u8  ErrorContextData; /* ErrorDataLength long array */
+} __packed;
+
+/* 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)
+
+struct move_dst_ipaddr {
+	__le32 Type;
+	__u32  Reserved;
+	__u8   address[16]; /* IPv4 followed by 12 bytes rsvd or IPv6 address */
+} __packed;
+
+struct share_redirect_error_context_rsp {
+	__le32 StructureSize;
+	__le32 NotificationType;
+	__le32 ResourceNameOffset;
+	__le32 ResourceNameLength;
+	__le16 Flags;
+	__le16 TargetType;
+	__le32 IPAddrCount;
+	struct move_dst_ipaddr IpAddrMoveList[0];
+	/* __u8 ResourceName[] */ /* Name of share as counted Unicode string */
+} __packed;
+
 #define SMB2_CLIENT_GUID_SIZE 16
 
 struct smb2_negotiate_req {
@@ -320,7 +349,9 @@ struct smb2_logoff_rsp {
 } __packed;
 
 /* Flags/Reserved for SMB3.1.1 */
-#define SMB2_SHAREFLAG_CLUSTER_RECONNECT	0x0001
+#define SMB2_TREE_CONNECT_FLAG_CLUSTER_RECONNECT cpu_to_le16(0x0001)
+#define SMB2_TREE_CONNECT_FLAG_REDIRECT_TO_OWNER cpu_to_le16(0x0002)
+#define SMB2_TREE_CONNECT_FLAG_EXTENSION_PRESENT cpu_to_le16(0x0004)
 
 struct smb2_tree_connect_req {
 	struct smb2_sync_hdr sync_hdr;
@@ -331,6 +362,82 @@ struct smb2_tree_connect_req {
 	__u8   Buffer[1];	/* variable length */
 } __packed;
 
+/* See MS-SMB2 section 2.2.9.2 */
+/* Context Types */
+#define SMB2_RESERVED_TREE_CONNECT_CONTEXT_ID 0x0000
+#define SMB2_REMOTED_IDENTITY_TREE_CONNECT_CONTEXT_ID cpu_to_le16(0x0001)
+
+struct tree_connect_contexts {
+	__le16 ContextType;
+	__le16 DataLength;
+	__le32 Reserved;
+	__u8   Data[0];
+} __packed;
+
+/* Remoted identity tree connect context structures - see MS-SMB2 2.2.9.2.1 */
+struct smb3_blob_data {
+	__le16 BlobSize;
+	__u8   BlobData[0];
+} __packed;
+
+/* Valid values for Attr */
+#define SE_GROUP_MANDATORY		0x00000001
+#define SE_GROUP_ENABLED_BY_DEFAULT	0x00000002
+#define SE_GROUP_ENABLED		0x00000004
+#define SE_GROUP_OWNER			0x00000008
+#define SE_GROUP_USE_FOR_DENY_ONLY	0x00000010
+#define SE_GROUP_INTEGRITY		0x00000020
+#define SE_GROUP_INTEGRITY_ENABLED	0x00000040
+#define SE_GROUP_RESOURCE		0x20000000
+#define SE_GROUP_LOGON_ID		0xC0000000
+
+/* struct sid_attr_data is SidData array in BlobData format then le32 Attr */
+
+struct sid_array_data {
+	__le16 SidAttrCount;
+	/* SidAttrList - array of sid_attr_data structs */
+} __packed;
+
+struct luid_attr_data {
+
+} __packed;
+
+/*
+ * struct privilege_data is the same as BLOB_DATA - see MS-SMB2 2.2.9.2.1.5
+ * but with size of LUID_ATTR_DATA struct and BlobData set to LUID_ATTR DATA
+ */
+
+struct privilege_array_data {
+	__le16 PrivilegeCount;
+	/* array of privilege_data structs */
+} __packed;
+
+struct remoted_identity_tcon_context {
+	__le16 TicketType; /* must be 0x0001 */
+	__le16 TicketSize; /* total size of this struct */
+	__le16 User; /* offset to SID_ATTR_DATA struct with user info */
+	__le16 UserName; /* offset to null terminated Unicode username string */
+	__le16 Domain; /* offset to null terminated Unicode domain name */
+	__le16 Groups; /* offset to SID_ARRAY_DATA struct with group info */
+	__le16 RestrictedGroups; /* similar to above */
+	__le16 Privileges; /* offset to PRIVILEGE_ARRAY_DATA struct */
+	__le16 PrimaryGroup; /* offset to SID_ARRAY_DATA struct */
+	__le16 Owner; /* offset to BLOB_DATA struct */
+	__le16 DefaultDacl; /* offset to BLOB_DATA struct */
+	__le16 DeviceGroups; /* offset to SID_ARRAY_DATA struct */
+	__le16 UserClaims; /* offset to BLOB_DATA struct */
+	__le16 DeviceClaims; /* offset to BLOB_DATA struct */
+	__u8   TicketInfo[0]; /* variable length buf - remoted identity data */
+} __packed;
+
+struct smb2_tree_connect_req_extension {
+	__le32 TreeConnectContextOffset;
+	__le16 TreeConnectContextCount;
+	__u8  Reserved[10];
+	__u8  PathName[0]; /* variable sized array */
+	/* followed by array of TreeConnectContexts */
+} __packed;
+
 struct smb2_tree_connect_rsp {
 	struct smb2_hdr hdr;
 	__le16 StructureSize;	/* Must be 16 */
@@ -365,7 +472,8 @@ struct smb2_tree_connect_rsp {
 #define SHI1005_FLAGS_ENABLE_HASH_V1			0x00002000
 #define SHI1005_FLAGS_ENABLE_HASH_V2			0x00004000
 #define SHI1005_FLAGS_ENCRYPT_DATA			0x00008000
-#define SHI1005_FLAGS_ALL				0x0000FF33
+#define SMB2_SHAREFLAG_IDENTITY_REMOTING		0x00040000 /* 3.1.1 */
+#define SHI1005_FLAGS_ALL				0x0004FF33
 
 /* Possible share capabilities */
 #define SMB2_SHARE_CAP_DFS	cpu_to_le32(0x00000008) /* all dialects */
@@ -373,6 +481,7 @@ struct smb2_tree_connect_rsp {
 #define SMB2_SHARE_CAP_SCALEOUT	cpu_to_le32(0x00000020) /* 3.0 */
 #define SMB2_SHARE_CAP_CLUSTER	cpu_to_le32(0x00000040) /* 3.0 */
 #define SMB2_SHARE_CAP_ASYMMETRIC cpu_to_le32(0x00000080) /* 3.02 */
+#define SMB2_SHARE_CAP_REDIRECT_TO_OWNER cpu_to_le32(0x00000100) /* 3.1.1 */
 
 struct smb2_tree_disconnect_req {
 	struct smb2_sync_hdr sync_hdr;
@@ -556,6 +665,7 @@ struct create_context {
 #define SMB2_LEASE_WRITE_CACHING	cpu_to_le32(0x04)
 
 #define SMB2_LEASE_FLAG_BREAK_IN_PROGRESS cpu_to_le32(0x02)
+#define SMB2_LEASE_FLAG_PARENT_LEASE_KEY_SET cpu_to_le32(0x00000004)
 
 #define SMB2_LEASE_KEY_SIZE 16