/* SPDX-License-Identifier: LGPL-2.1 */ /* * * Copyright (c) International Business Machines Corp., 2009, 2013 * Etersoft, 2012 * Author(s): Steve French (sfrench@us.ibm.com) * Pavel Shilovsky (pshilovsky@samba.org) 2012 * */ #ifndef _SMB2PDU_H #define _SMB2PDU_H #include #include "cifsacl.h" /* 52 transform hdr + 64 hdr + 88 create rsp */ #define SMB2_TRANSFORM_HEADER_SIZE 52 #define MAX_SMB2_HDR_SIZE 204 /* The total header size for SMB2 read and write */ #define SMB2_READWRITE_PDU_HEADER_SIZE (48 + sizeof(struct smb2_hdr)) /* See MS-SMB2 2.2.43 */ struct smb2_rdma_transform { __le16 RdmaDescriptorOffset; __le16 RdmaDescriptorLength; __le32 Channel; /* for values see channel description in smb2 read above */ __le16 TransformCount; __le16 Reserved1; __le32 Reserved2; } __packed; /* 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; __u16 Reserved; __u8 Signature[]; /* variable length */ /* u8 Nonce[] */ /* followed by padding */ } __packed; /* * Definitions for SMB2 Protocol Data Units (network frames) * * See MS-SMB2.PDF specification for protocol details. * The Naming convention is the lower case version of the SMB2 * command code name for the struct. Note that structures must be packed. * */ #define COMPOUND_FID 0xFFFFFFFFFFFFFFFFULL #define SMB2_SYMLINK_STRUCT_SIZE \ (sizeof(struct smb2_err_rsp) + sizeof(struct smb2_symlink_err_rsp)) #define SYMLINK_ERROR_TAG 0x4c4d5953 struct smb2_symlink_err_rsp { __le32 SymLinkLength; __le32 SymLinkErrorTag; __le32 ReparseTag; __le16 ReparseDataLength; __le16 UnparsedPathLength; __le16 SubstituteNameOffset; __le16 SubstituteNameLength; __le16 PrintNameOffset; __le16 PrintNameLength; __le32 Flags; __u8 PathBuffer[]; } __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; /* 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) 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 Reserved; __le16 TargetType; __le32 IPAddrCount; struct move_dst_ipaddr IpAddrMoveList[]; /* __u8 ResourceName[] */ /* Name of share as counted Unicode string */ } __packed; /* * Maximum number of iovs we need for an open/create request. * [0] : struct smb2_create_req * [1] : path * [2] : lease context * [3] : durable context * [4] : posix context * [5] : time warp context * [6] : query id context * [7] : create ea context * [8] : compound padding */ #define SMB2_CREATE_IOV_SIZE 9 /* * Maximum size of a SMB2_CREATE response is 64 (smb2 header) + * 88 (fixed part of create response) + 520 (path) + 208 (contexts) + * 2 bytes of padding. */ #define MAX_SMB2_CREATE_RESPONSE_SIZE 880 #define SMB2_LEASE_READ_CACHING_HE 0x01 #define SMB2_LEASE_HANDLE_CACHING_HE 0x02 #define SMB2_LEASE_WRITE_CACHING_HE 0x04 /* See MS-SMB2 2.2.13.2.11 */ /* Flags */ #define SMB2_DHANDLE_FLAG_PERSISTENT 0x00000002 struct durable_context_v2 { __le32 Timeout; __le32 Flags; __u64 Reserved; __u8 CreateGuid[16]; } __packed; struct create_durable_v2 { struct create_context ccontext; __u8 Name[8]; struct durable_context_v2 dcontext; } __packed; /* See MS-SMB2 2.2.13.2.12 */ struct durable_reconnect_context_v2 { struct { __u64 PersistentFileId; __u64 VolatileFileId; } Fid; __u8 CreateGuid[16]; __le32 Flags; /* see above DHANDLE_FLAG_PERSISTENT */ } __packed; /* See MS-SMB2 2.2.14.2.12 */ struct durable_reconnect_context_v2_rsp { __le32 Timeout; __le32 Flags; /* see above DHANDLE_FLAG_PERSISTENT */ } __packed; struct create_durable_handle_reconnect_v2 { struct create_context ccontext; __u8 Name[8]; struct durable_reconnect_context_v2 dcontext; __u8 Pad[4]; } __packed; /* See MS-SMB2 2.2.13.2.5 */ struct crt_twarp_ctxt { struct create_context ccontext; __u8 Name[8]; __le64 Timestamp; } __packed; /* See MS-SMB2 2.2.13.2.9 */ struct crt_query_id_ctxt { struct create_context ccontext; __u8 Name[8]; } __packed; struct crt_sd_ctxt { struct create_context ccontext; __u8 Name[8]; struct smb3_sd sd; } __packed; #define COPY_CHUNK_RES_KEY_SIZE 24 struct resume_key_req { char ResumeKey[COPY_CHUNK_RES_KEY_SIZE]; __le32 ContextLength; /* MBZ */ char Context[]; /* ignored, Windows sets to 4 bytes of zero */ } __packed; /* this goes in the ioctl buffer when doing a copychunk request */ struct copychunk_ioctl { char SourceKey[COPY_CHUNK_RES_KEY_SIZE]; __le32 ChunkCount; /* we are only sending 1 */ __le32 Reserved; /* array will only be one chunk long for us */ __le64 SourceOffset; __le64 TargetOffset; __le32 Length; /* how many bytes to copy */ __u32 Reserved2; } __packed; struct copychunk_ioctl_rsp { __le32 ChunksWritten; __le32 ChunkBytesWritten; __le32 TotalBytesWritten; } __packed; /* See MS-FSCC 2.3.29 and 2.3.30 */ struct get_retrieval_pointer_count_req { __le64 StartingVcn; /* virtual cluster number (signed) */ } __packed; struct get_retrieval_pointer_count_rsp { __le32 ExtentCount; } __packed; /* * See MS-FSCC 2.3.33 and 2.3.34 * request is the same as get_retrieval_point_count_req struct above */ struct smb3_extents { __le64 NextVcn; __le64 Lcn; /* logical cluster number */ } __packed; struct get_retrieval_pointers_refcount_rsp { __le32 ExtentCount; __u32 Reserved; __le64 StartingVcn; struct smb3_extents extents[]; } __packed; /* See MS-DFSC 2.2.2 */ struct fsctl_get_dfs_referral_req { __le16 MaxReferralLevel; __u8 RequestFileName[]; } __packed; /* DFS response is struct get_dfs_refer_rsp */ /* See MS-SMB2 2.2.31.3 */ struct network_resiliency_req { __le32 Timeout; __le32 Reserved; } __packed; /* There is no buffer for the response ie no struct network_resiliency_rsp */ #define RSS_CAPABLE cpu_to_le32(0x00000001) #define RDMA_CAPABLE cpu_to_le32(0x00000002) #define INTERNETWORK cpu_to_le16(0x0002) #define INTERNETWORKV6 cpu_to_le16(0x0017) struct network_interface_info_ioctl_rsp { __le32 Next; /* next interface. zero if this is last one */ __le32 IfIndex; __le32 Capability; /* RSS or RDMA Capable */ __le32 Reserved; __le64 LinkSpeed; __le16 Family; __u8 Buffer[126]; } __packed; struct iface_info_ipv4 { __be16 Port; __be32 IPv4Address; __be64 Reserved; } __packed; struct iface_info_ipv6 { __be16 Port; __be32 FlowInfo; __u8 IPv6Address[16]; __be32 ScopeId; } __packed; #define NO_FILE_ID 0xFFFFFFFFFFFFFFFFULL /* general ioctls to srv not to file */ struct compress_ioctl { __le16 CompressionState; /* See cifspdu.h for possible flag values */ } __packed; /* * Maximum number of iovs we need for an ioctl request. * [0] : struct smb2_ioctl_req * [1] : in_data */ #define SMB2_IOCTL_IOV_SIZE 2 /* * PDU query infolevel structure definitions * BB consider moving to a different header */ struct smb2_file_full_ea_info { /* encoding of response for level 15 */ __le32 next_entry_offset; __u8 flags; __u8 ea_name_length; __le16 ea_value_length; char ea_data[]; /* \0 terminated name plus value */ } __packed; /* level 15 Set */ struct smb2_file_reparse_point_info { __le64 IndexNumber; __le32 Tag; } __packed; struct smb2_file_network_open_info { struct_group(network_open_info, __le64 CreationTime; __le64 LastAccessTime; __le64 LastWriteTime; __le64 ChangeTime; __le64 AllocationSize; __le64 EndOfFile; __le32 Attributes; ); __le32 Reserved; } __packed; /* level 34 Query also similar returned in close rsp and open rsp */ /* See MS-FSCC 2.4.21 */ struct smb2_file_id_information { __le64 VolumeSerialNumber; __u64 PersistentFileId; /* opaque endianness */ __u64 VolatileFileId; /* opaque endianness */ } __packed; /* level 59 */ /* See MS-FSCC 2.4.18 */ struct smb2_file_id_extd_directory_info { __le32 NextEntryOffset; __u32 FileIndex; __le64 CreationTime; __le64 LastAccessTime; __le64 LastWriteTime; __le64 ChangeTime; __le64 EndOfFile; __le64 AllocationSize; __le32 FileAttributes; __le32 FileNameLength; __le32 EaSize; /* EA size */ __le32 ReparsePointTag; /* valid if FILE_ATTR_REPARSE_POINT set in FileAttributes */ __le64 UniqueId; /* inode num - le since Samba puts ino in low 32 bit */ char FileName[]; } __packed; /* level 60 */ extern char smb2_padding[7]; /* equivalent of the contents of SMB3.1.1 POSIX open context response */ struct create_posix_rsp { u32 nlink; u32 reparse_tag; u32 mode; struct cifs_sid owner; /* var-sized on the wire */ struct cifs_sid group; /* var-sized on the wire */ } __packed; #define SMB2_QUERY_DIRECTORY_IOV_SIZE 2 /* * SMB2-only POSIX info level for query dir * * See posix_info_sid_size(), posix_info_extra_size() and * posix_info_parse() to help with the handling of this struct. */ struct smb2_posix_info { __le32 NextEntryOffset; __u32 Ignored; __le64 CreationTime; __le64 LastAccessTime; __le64 LastWriteTime; __le64 ChangeTime; __le64 EndOfFile; __le64 AllocationSize; __le32 DosAttributes; __le64 Inode; __le32 DeviceId; __le32 Zero; /* beginning of POSIX Create Context Response */ __le32 HardLinks; __le32 ReparseTag; __le32 Mode; /* * var sized owner SID * var sized group SID * le32 filenamelength * u8 filename[] */ } __packed; /* * Parsed version of the above struct. Allows direct access to the * variable length fields */ struct smb2_posix_info_parsed { const struct smb2_posix_info *base; size_t size; struct cifs_sid owner; struct cifs_sid group; int name_len; const u8 *name; }; struct smb2_create_ea_ctx { struct create_context ctx; __u8 name[8]; struct smb2_file_full_ea_info ea; } __packed; #define SMB2_WSL_XATTR_UID "$LXUID" #define SMB2_WSL_XATTR_GID "$LXGID" #define SMB2_WSL_XATTR_MODE "$LXMOD" #define SMB2_WSL_XATTR_DEV "$LXDEV" #define SMB2_WSL_XATTR_NAME_LEN 6 #define SMB2_WSL_NUM_XATTRS 4 #define SMB2_WSL_XATTR_UID_SIZE 4 #define SMB2_WSL_XATTR_GID_SIZE 4 #define SMB2_WSL_XATTR_MODE_SIZE 4 #define SMB2_WSL_XATTR_DEV_SIZE 8 #define SMB2_WSL_MIN_QUERY_EA_RESP_SIZE \ (ALIGN((SMB2_WSL_NUM_XATTRS - 1) * \ (SMB2_WSL_XATTR_NAME_LEN + 1 + \ sizeof(struct smb2_file_full_ea_info)), 4) + \ SMB2_WSL_XATTR_NAME_LEN + 1 + sizeof(struct smb2_file_full_ea_info)) #define SMB2_WSL_MAX_QUERY_EA_RESP_SIZE \ (ALIGN(SMB2_WSL_MIN_QUERY_EA_RESP_SIZE + \ SMB2_WSL_XATTR_UID_SIZE + \ SMB2_WSL_XATTR_GID_SIZE + \ SMB2_WSL_XATTR_MODE_SIZE + \ SMB2_WSL_XATTR_DEV_SIZE, 4)) #endif /* _SMB2PDU_H */