| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| /* |
| * Copyright (C) 2016 Namjae Jeon <linkinjeon@kernel.org> |
| * Copyright (C) 2018 Samsung Electronics Co., Ltd. |
| */ |
| |
| #ifndef _SMB2PDU_H |
| #define _SMB2PDU_H |
| |
| #include "ntlmssp.h" |
| #include "smbacl.h" |
| |
| /*Create Action Flags*/ |
| #define FILE_SUPERSEDED 0x00000000 |
| #define FILE_OPENED 0x00000001 |
| #define FILE_CREATED 0x00000002 |
| #define FILE_OVERWRITTEN 0x00000003 |
| |
| /* SMB2 Max Credits */ |
| #define SMB2_MAX_CREDITS 8192 |
| |
| /* BB FIXME - analyze following length BB */ |
| #define MAX_SMB2_HDR_SIZE 0x78 /* 4 len + 64 hdr + (2*24 wct) + 2 bct + 2 pad */ |
| |
| #define SMB21_DEFAULT_IOSIZE (1024 * 1024) |
| #define SMB3_DEFAULT_TRANS_SIZE (1024 * 1024) |
| #define SMB3_MIN_IOSIZE (64 * 1024) |
| #define SMB3_MAX_IOSIZE (8 * 1024 * 1024) |
| #define SMB3_MAX_MSGSIZE (4 * 4096) |
| |
| /* |
| * 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. |
| * |
| */ |
| |
| struct preauth_integrity_info { |
| /* PreAuth integrity Hash ID */ |
| __le16 Preauth_HashId; |
| /* PreAuth integrity Hash Value */ |
| __u8 Preauth_HashValue[SMB2_PREAUTH_HASH_SIZE]; |
| }; |
| |
| /* offset is sizeof smb2_negotiate_rsp but rounded up to 8 bytes. */ |
| #ifdef CONFIG_SMB_SERVER_KERBEROS5 |
| /* sizeof(struct smb2_negotiate_rsp) = |
| * header(64) + response(64) + GSS_LENGTH(96) + GSS_PADDING(0) |
| */ |
| #define OFFSET_OF_NEG_CONTEXT 0xe0 |
| #else |
| /* sizeof(struct smb2_negotiate_rsp) = |
| * header(64) + response(64) + GSS_LENGTH(74) + GSS_PADDING(6) |
| */ |
| #define OFFSET_OF_NEG_CONTEXT 0xd0 |
| #endif |
| |
| #define SMB2_SESSION_EXPIRED (0) |
| #define SMB2_SESSION_IN_PROGRESS BIT(0) |
| #define SMB2_SESSION_VALID BIT(1) |
| |
| struct create_durable_req_v2 { |
| struct create_context ccontext; |
| __u8 Name[8]; |
| __le32 Timeout; |
| __le32 Flags; |
| __u8 Reserved[8]; |
| __u8 CreateGuid[16]; |
| } __packed; |
| |
| struct create_durable_reconn_req { |
| struct create_context ccontext; |
| __u8 Name[8]; |
| union { |
| __u8 Reserved[16]; |
| struct { |
| __u64 PersistentFileId; |
| __u64 VolatileFileId; |
| } Fid; |
| } Data; |
| } __packed; |
| |
| struct create_durable_reconn_v2_req { |
| struct create_context ccontext; |
| __u8 Name[8]; |
| struct { |
| __u64 PersistentFileId; |
| __u64 VolatileFileId; |
| } Fid; |
| __u8 CreateGuid[16]; |
| __le32 Flags; |
| } __packed; |
| |
| struct create_app_inst_id { |
| struct create_context ccontext; |
| __u8 Name[8]; |
| __u8 Reserved[8]; |
| __u8 AppInstanceId[16]; |
| } __packed; |
| |
| struct create_app_inst_id_vers { |
| struct create_context ccontext; |
| __u8 Name[8]; |
| __u8 Reserved[2]; |
| __u8 Padding[4]; |
| __le64 AppInstanceVersionHigh; |
| __le64 AppInstanceVersionLow; |
| } __packed; |
| |
| struct create_mxac_req { |
| struct create_context ccontext; |
| __u8 Name[8]; |
| __le64 Timestamp; |
| } __packed; |
| |
| struct create_alloc_size_req { |
| struct create_context ccontext; |
| __u8 Name[8]; |
| __le64 AllocationSize; |
| } __packed; |
| |
| struct create_durable_rsp { |
| struct create_context ccontext; |
| __u8 Name[8]; |
| union { |
| __u8 Reserved[8]; |
| __u64 data; |
| } Data; |
| } __packed; |
| |
| struct create_durable_v2_rsp { |
| struct create_context ccontext; |
| __u8 Name[8]; |
| __le32 Timeout; |
| __le32 Flags; |
| } __packed; |
| |
| struct create_mxac_rsp { |
| struct create_context ccontext; |
| __u8 Name[8]; |
| __le32 QueryStatus; |
| __le32 MaximalAccess; |
| } __packed; |
| |
| struct create_disk_id_rsp { |
| struct create_context ccontext; |
| __u8 Name[8]; |
| __le64 DiskFileId; |
| __le64 VolumeId; |
| __u8 Reserved[16]; |
| } __packed; |
| |
| /* equivalent of the contents of SMB3.1.1 POSIX open context response */ |
| struct create_posix_rsp { |
| struct create_context ccontext; |
| __u8 Name[16]; |
| __le32 nlink; |
| __le32 reparse_tag; |
| __le32 mode; |
| /* SidBuffer contain two sids(Domain sid(28), UNIX group sid(16)) */ |
| u8 SidBuffer[44]; |
| } __packed; |
| |
| struct smb2_buffer_desc_v1 { |
| __le64 offset; |
| __le32 token; |
| __le32 length; |
| } __packed; |
| |
| #define SMB2_0_IOCTL_IS_FSCTL 0x00000001 |
| |
| struct smb_sockaddr_in { |
| __be16 Port; |
| __be32 IPv4address; |
| __u8 Reserved[8]; |
| } __packed; |
| |
| struct smb_sockaddr_in6 { |
| __be16 Port; |
| __be32 FlowInfo; |
| __u8 IPv6address[16]; |
| __be32 ScopeId; |
| } __packed; |
| |
| #define INTERNETWORK 0x0002 |
| #define INTERNETWORKV6 0x0017 |
| |
| struct sockaddr_storage_rsp { |
| __le16 Family; |
| union { |
| struct smb_sockaddr_in addr4; |
| struct smb_sockaddr_in6 addr6; |
| }; |
| } __packed; |
| |
| #define RSS_CAPABLE 0x00000001 |
| #define RDMA_CAPABLE 0x00000002 |
| |
| 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; |
| char SockAddr_Storage[128]; |
| } __packed; |
| |
| struct file_object_buf_type1_ioctl_rsp { |
| __u8 ObjectId[16]; |
| __u8 BirthVolumeId[16]; |
| __u8 BirthObjectId[16]; |
| __u8 DomainId[16]; |
| } __packed; |
| |
| struct resume_key_ioctl_rsp { |
| __u64 ResumeKey[3]; |
| __le32 ContextLength; |
| __u8 Context[4]; /* ignored, Windows sets to 4 bytes of zero */ |
| } __packed; |
| |
| struct copychunk_ioctl_req { |
| __le64 ResumeKey[3]; |
| __le32 ChunkCount; |
| __le32 Reserved; |
| __u8 Chunks[1]; /* array of srv_copychunk */ |
| } __packed; |
| |
| struct srv_copychunk { |
| __le64 SourceOffset; |
| __le64 TargetOffset; |
| __le32 Length; |
| __le32 Reserved; |
| } __packed; |
| |
| struct copychunk_ioctl_rsp { |
| __le32 ChunksWritten; |
| __le32 ChunkBytesWritten; |
| __le32 TotalBytesWritten; |
| } __packed; |
| |
| struct file_sparse { |
| __u8 SetSparse; |
| } __packed; |
| |
| /* FILE Info response size */ |
| #define FILE_DIRECTORY_INFORMATION_SIZE 1 |
| #define FILE_FULL_DIRECTORY_INFORMATION_SIZE 2 |
| #define FILE_BOTH_DIRECTORY_INFORMATION_SIZE 3 |
| #define FILE_BASIC_INFORMATION_SIZE 40 |
| #define FILE_STANDARD_INFORMATION_SIZE 24 |
| #define FILE_INTERNAL_INFORMATION_SIZE 8 |
| #define FILE_EA_INFORMATION_SIZE 4 |
| #define FILE_ACCESS_INFORMATION_SIZE 4 |
| #define FILE_NAME_INFORMATION_SIZE 9 |
| #define FILE_RENAME_INFORMATION_SIZE 10 |
| #define FILE_LINK_INFORMATION_SIZE 11 |
| #define FILE_NAMES_INFORMATION_SIZE 12 |
| #define FILE_DISPOSITION_INFORMATION_SIZE 13 |
| #define FILE_POSITION_INFORMATION_SIZE 14 |
| #define FILE_FULL_EA_INFORMATION_SIZE 15 |
| #define FILE_MODE_INFORMATION_SIZE 4 |
| #define FILE_ALIGNMENT_INFORMATION_SIZE 4 |
| #define FILE_ALL_INFORMATION_SIZE 104 |
| #define FILE_ALLOCATION_INFORMATION_SIZE 19 |
| #define FILE_END_OF_FILE_INFORMATION_SIZE 20 |
| #define FILE_ALTERNATE_NAME_INFORMATION_SIZE 8 |
| #define FILE_STREAM_INFORMATION_SIZE 32 |
| #define FILE_PIPE_INFORMATION_SIZE 23 |
| #define FILE_PIPE_LOCAL_INFORMATION_SIZE 24 |
| #define FILE_PIPE_REMOTE_INFORMATION_SIZE 25 |
| #define FILE_MAILSLOT_QUERY_INFORMATION_SIZE 26 |
| #define FILE_MAILSLOT_SET_INFORMATION_SIZE 27 |
| #define FILE_COMPRESSION_INFORMATION_SIZE 16 |
| #define FILE_OBJECT_ID_INFORMATION_SIZE 29 |
| /* Number 30 not defined in documents */ |
| #define FILE_MOVE_CLUSTER_INFORMATION_SIZE 31 |
| #define FILE_QUOTA_INFORMATION_SIZE 32 |
| #define FILE_REPARSE_POINT_INFORMATION_SIZE 33 |
| #define FILE_NETWORK_OPEN_INFORMATION_SIZE 56 |
| #define FILE_ATTRIBUTE_TAG_INFORMATION_SIZE 8 |
| |
| /* FS Info response size */ |
| #define FS_DEVICE_INFORMATION_SIZE 8 |
| #define FS_ATTRIBUTE_INFORMATION_SIZE 16 |
| #define FS_VOLUME_INFORMATION_SIZE 24 |
| #define FS_SIZE_INFORMATION_SIZE 24 |
| #define FS_FULL_SIZE_INFORMATION_SIZE 32 |
| #define FS_SECTOR_SIZE_INFORMATION_SIZE 28 |
| #define FS_OBJECT_ID_INFORMATION_SIZE 64 |
| #define FS_CONTROL_INFORMATION_SIZE 48 |
| #define FS_POSIX_INFORMATION_SIZE 56 |
| |
| /* FS_ATTRIBUTE_File_System_Name */ |
| #define FS_TYPE_SUPPORT_SIZE 44 |
| struct fs_type_info { |
| char *fs_name; |
| long magic_number; |
| } __packed; |
| |
| /* |
| * PDU query infolevel structure definitions |
| * BB consider moving to a different header |
| */ |
| |
| struct smb2_file_access_info { |
| __le32 AccessFlags; |
| } __packed; |
| |
| struct smb2_file_alignment_info { |
| __le32 AlignmentRequirement; |
| } __packed; |
| |
| struct smb2_file_basic_info { /* data block encoding of response to level 18 */ |
| __le64 CreationTime; /* Beginning of FILE_BASIC_INFO equivalent */ |
| __le64 LastAccessTime; |
| __le64 LastWriteTime; |
| __le64 ChangeTime; |
| __le32 Attributes; |
| __u32 Pad1; /* End of FILE_BASIC_INFO_INFO equivalent */ |
| } __packed; |
| |
| struct smb2_file_alt_name_info { |
| __le32 FileNameLength; |
| char FileName[]; |
| } __packed; |
| |
| struct smb2_file_stream_info { |
| __le32 NextEntryOffset; |
| __le32 StreamNameLength; |
| __le64 StreamSize; |
| __le64 StreamAllocationSize; |
| char StreamName[]; |
| } __packed; |
| |
| struct smb2_file_ntwrk_info { |
| __le64 CreationTime; |
| __le64 LastAccessTime; |
| __le64 LastWriteTime; |
| __le64 ChangeTime; |
| __le64 AllocationSize; |
| __le64 EndOfFile; |
| __le32 Attributes; |
| __le32 Reserved; |
| } __packed; |
| |
| struct smb2_file_standard_info { |
| __le64 AllocationSize; |
| __le64 EndOfFile; |
| __le32 NumberOfLinks; /* hard links */ |
| __u8 DeletePending; |
| __u8 Directory; |
| __le16 Reserved; |
| } __packed; /* level 18 Query */ |
| |
| struct smb2_file_ea_info { |
| __le32 EASize; |
| } __packed; |
| |
| struct smb2_file_alloc_info { |
| __le64 AllocationSize; |
| } __packed; |
| |
| struct smb2_file_disposition_info { |
| __u8 DeletePending; |
| } __packed; |
| |
| struct smb2_file_pos_info { |
| __le64 CurrentByteOffset; |
| } __packed; |
| |
| #define FILE_MODE_INFO_MASK cpu_to_le32(0x0000100e) |
| |
| struct smb2_file_mode_info { |
| __le32 Mode; |
| } __packed; |
| |
| #define COMPRESSION_FORMAT_NONE 0x0000 |
| #define COMPRESSION_FORMAT_LZNT1 0x0002 |
| |
| struct smb2_file_comp_info { |
| __le64 CompressedFileSize; |
| __le16 CompressionFormat; |
| __u8 CompressionUnitShift; |
| __u8 ChunkShift; |
| __u8 ClusterShift; |
| __u8 Reserved[3]; |
| } __packed; |
| |
| struct smb2_file_attr_tag_info { |
| __le32 FileAttributes; |
| __le32 ReparseTag; |
| } __packed; |
| |
| #define SL_RESTART_SCAN 0x00000001 |
| #define SL_RETURN_SINGLE_ENTRY 0x00000002 |
| #define SL_INDEX_SPECIFIED 0x00000004 |
| |
| struct smb2_ea_info_req { |
| __le32 NextEntryOffset; |
| __u8 EaNameLength; |
| char name[1]; |
| } __packed; /* level 15 Query */ |
| |
| struct smb2_ea_info { |
| __le32 NextEntryOffset; |
| __u8 Flags; |
| __u8 EaNameLength; |
| __le16 EaValueLength; |
| char name[1]; |
| /* optionally followed by value */ |
| } __packed; /* level 15 Query */ |
| |
| struct create_ea_buf_req { |
| struct create_context ccontext; |
| __u8 Name[8]; |
| struct smb2_ea_info ea; |
| } __packed; |
| |
| struct create_sd_buf_req { |
| struct create_context ccontext; |
| __u8 Name[8]; |
| struct smb_ntsd ntsd; |
| } __packed; |
| |
| 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; |
| /* SidBuffer contain two sids (UNIX user sid(16), UNIX group sid(16)) */ |
| u8 SidBuffer[32]; |
| __le32 name_len; |
| u8 name[]; |
| /* |
| * var sized owner SID |
| * var sized group SID |
| * le32 filenamelength |
| * u8 filename[] |
| */ |
| } __packed; |
| |
| /* functions */ |
| void init_smb2_1_server(struct ksmbd_conn *conn); |
| void init_smb3_0_server(struct ksmbd_conn *conn); |
| void init_smb3_02_server(struct ksmbd_conn *conn); |
| int init_smb3_11_server(struct ksmbd_conn *conn); |
| |
| void init_smb2_max_read_size(unsigned int sz); |
| void init_smb2_max_write_size(unsigned int sz); |
| void init_smb2_max_trans_size(unsigned int sz); |
| void init_smb2_max_credits(unsigned int sz); |
| |
| bool is_smb2_neg_cmd(struct ksmbd_work *work); |
| bool is_smb2_rsp(struct ksmbd_work *work); |
| |
| u16 get_smb2_cmd_val(struct ksmbd_work *work); |
| void set_smb2_rsp_status(struct ksmbd_work *work, __le32 err); |
| int init_smb2_rsp_hdr(struct ksmbd_work *work); |
| int smb2_allocate_rsp_buf(struct ksmbd_work *work); |
| bool is_chained_smb2_message(struct ksmbd_work *work); |
| int init_smb2_neg_rsp(struct ksmbd_work *work); |
| void smb2_set_err_rsp(struct ksmbd_work *work); |
| int smb2_check_user_session(struct ksmbd_work *work); |
| int smb2_get_ksmbd_tcon(struct ksmbd_work *work); |
| bool smb2_is_sign_req(struct ksmbd_work *work, unsigned int command); |
| int smb2_check_sign_req(struct ksmbd_work *work); |
| void smb2_set_sign_rsp(struct ksmbd_work *work); |
| int smb3_check_sign_req(struct ksmbd_work *work); |
| void smb3_set_sign_rsp(struct ksmbd_work *work); |
| int find_matching_smb2_dialect(int start_index, __le16 *cli_dialects, |
| __le16 dialects_count); |
| struct file_lock *smb_flock_init(struct file *f); |
| int setup_async_work(struct ksmbd_work *work, void (*fn)(void **), |
| void **arg); |
| void smb2_send_interim_resp(struct ksmbd_work *work, __le32 status); |
| struct channel *lookup_chann_list(struct ksmbd_session *sess, |
| struct ksmbd_conn *conn); |
| void smb3_preauth_hash_rsp(struct ksmbd_work *work); |
| bool smb3_is_transform_hdr(void *buf); |
| int smb3_decrypt_req(struct ksmbd_work *work); |
| int smb3_encrypt_resp(struct ksmbd_work *work); |
| bool smb3_11_final_sess_setup_resp(struct ksmbd_work *work); |
| int smb2_set_rsp_credits(struct ksmbd_work *work); |
| bool smb3_encryption_negotiated(struct ksmbd_conn *conn); |
| |
| /* smb2 misc functions */ |
| int ksmbd_smb2_check_message(struct ksmbd_work *work); |
| |
| /* smb2 command handlers */ |
| int smb2_handle_negotiate(struct ksmbd_work *work); |
| int smb2_negotiate_request(struct ksmbd_work *work); |
| int smb2_sess_setup(struct ksmbd_work *work); |
| int smb2_tree_connect(struct ksmbd_work *work); |
| int smb2_tree_disconnect(struct ksmbd_work *work); |
| int smb2_session_logoff(struct ksmbd_work *work); |
| int smb2_open(struct ksmbd_work *work); |
| int smb2_query_info(struct ksmbd_work *work); |
| int smb2_query_dir(struct ksmbd_work *work); |
| int smb2_close(struct ksmbd_work *work); |
| int smb2_echo(struct ksmbd_work *work); |
| int smb2_set_info(struct ksmbd_work *work); |
| int smb2_read(struct ksmbd_work *work); |
| int smb2_write(struct ksmbd_work *work); |
| int smb2_flush(struct ksmbd_work *work); |
| int smb2_cancel(struct ksmbd_work *work); |
| int smb2_lock(struct ksmbd_work *work); |
| int smb2_ioctl(struct ksmbd_work *work); |
| int smb2_oplock_break(struct ksmbd_work *work); |
| int smb2_notify(struct ksmbd_work *ksmbd_work); |
| |
| /* |
| * Get the body of the smb2 message excluding the 4 byte rfc1002 headers |
| * from request/response buffer. |
| */ |
| static inline void *smb2_get_msg(void *buf) |
| { |
| return buf + 4; |
| } |
| |
| #endif /* _SMB2PDU_H */ |
