2021-03-16 09:49:09 +08:00
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/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (C) 2018 Samsung Electronics Co., Ltd.
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*/
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#ifndef __SMB_COMMON_H__
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#define __SMB_COMMON_H__
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#include <linux/kernel.h>
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#include "glob.h"
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#include "nterr.h"
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2021-11-03 07:43:42 +08:00
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#include "../smbfs_common/smb2pdu.h"
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2021-03-16 09:49:09 +08:00
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#include "smb2pdu.h"
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/* ksmbd's Specific ERRNO */
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#define ESHARE 50000
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#define SMB1_PROT 0
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#define SMB2_PROT 1
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#define SMB21_PROT 2
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/* multi-protocol negotiate request */
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#define SMB2X_PROT 3
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#define SMB30_PROT 4
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#define SMB302_PROT 5
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#define SMB311_PROT 6
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#define BAD_PROT 0xFFFF
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#define SMB1_VERSION_STRING "1.0"
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#define SMB20_VERSION_STRING "2.0"
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#define SMB21_VERSION_STRING "2.1"
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#define SMB30_VERSION_STRING "3.0"
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#define SMB302_VERSION_STRING "3.02"
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#define SMB311_VERSION_STRING "3.1.1"
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2021-03-30 13:25:35 +08:00
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#define SMB_ECHO_INTERVAL (60 * HZ)
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2021-03-16 09:49:09 +08:00
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#define CIFS_DEFAULT_IOSIZE (64 * 1024)
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#define MAX_CIFS_SMALL_BUFFER_SIZE 448 /* big enough for most */
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2021-09-24 08:17:30 +08:00
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#define MAX_STREAM_PROT_LEN 0x00FFFFFF
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2021-03-16 09:49:09 +08:00
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/* Responses when opening a file. */
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#define F_SUPERSEDED 0
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#define F_OPENED 1
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#define F_CREATED 2
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#define F_OVERWRITTEN 3
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/*
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* File Attribute flags
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*/
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#define ATTR_POSIX_SEMANTICS 0x01000000
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#define ATTR_BACKUP_SEMANTICS 0x02000000
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#define ATTR_DELETE_ON_CLOSE 0x04000000
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#define ATTR_SEQUENTIAL_SCAN 0x08000000
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#define ATTR_RANDOM_ACCESS 0x10000000
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#define ATTR_NO_BUFFERING 0x20000000
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#define ATTR_WRITE_THROUGH 0x80000000
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/* List of FileSystemAttributes - see 2.5.1 of MS-FSCC */
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#define FILE_SUPPORTS_SPARSE_VDL 0x10000000 /* faster nonsparse extend */
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#define FILE_SUPPORTS_BLOCK_REFCOUNTING 0x08000000 /* allow ioctl dup extents */
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#define FILE_SUPPORT_INTEGRITY_STREAMS 0x04000000
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#define FILE_SUPPORTS_USN_JOURNAL 0x02000000
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#define FILE_SUPPORTS_OPEN_BY_FILE_ID 0x01000000
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#define FILE_SUPPORTS_EXTENDED_ATTRIBUTES 0x00800000
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#define FILE_SUPPORTS_HARD_LINKS 0x00400000
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#define FILE_SUPPORTS_TRANSACTIONS 0x00200000
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#define FILE_SEQUENTIAL_WRITE_ONCE 0x00100000
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#define FILE_READ_ONLY_VOLUME 0x00080000
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#define FILE_NAMED_STREAMS 0x00040000
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#define FILE_SUPPORTS_ENCRYPTION 0x00020000
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#define FILE_SUPPORTS_OBJECT_IDS 0x00010000
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#define FILE_VOLUME_IS_COMPRESSED 0x00008000
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#define FILE_SUPPORTS_REMOTE_STORAGE 0x00000100
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#define FILE_SUPPORTS_REPARSE_POINTS 0x00000080
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#define FILE_SUPPORTS_SPARSE_FILES 0x00000040
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#define FILE_VOLUME_QUOTAS 0x00000020
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#define FILE_FILE_COMPRESSION 0x00000010
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#define FILE_PERSISTENT_ACLS 0x00000008
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#define FILE_UNICODE_ON_DISK 0x00000004
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#define FILE_CASE_PRESERVED_NAMES 0x00000002
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#define FILE_CASE_SENSITIVE_SEARCH 0x00000001
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#define FILE_READ_DATA 0x00000001 /* Data can be read from the file */
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#define FILE_WRITE_DATA 0x00000002 /* Data can be written to the file */
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#define FILE_APPEND_DATA 0x00000004 /* Data can be appended to the file */
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#define FILE_READ_EA 0x00000008 /* Extended attributes associated */
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/* with the file can be read */
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#define FILE_WRITE_EA 0x00000010 /* Extended attributes associated */
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/* with the file can be written */
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#define FILE_EXECUTE 0x00000020 /*Data can be read into memory from */
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/* the file using system paging I/O */
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#define FILE_DELETE_CHILD 0x00000040
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#define FILE_READ_ATTRIBUTES 0x00000080 /* Attributes associated with the */
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/* file can be read */
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#define FILE_WRITE_ATTRIBUTES 0x00000100 /* Attributes associated with the */
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/* file can be written */
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#define DELETE 0x00010000 /* The file can be deleted */
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#define READ_CONTROL 0x00020000 /* The access control list and */
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/* ownership associated with the */
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/* file can be read */
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#define WRITE_DAC 0x00040000 /* The access control list and */
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/* ownership associated with the */
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/* file can be written. */
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#define WRITE_OWNER 0x00080000 /* Ownership information associated */
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/* with the file can be written */
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#define SYNCHRONIZE 0x00100000 /* The file handle can waited on to */
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/* synchronize with the completion */
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/* of an input/output request */
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#define GENERIC_ALL 0x10000000
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#define GENERIC_EXECUTE 0x20000000
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#define GENERIC_WRITE 0x40000000
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#define GENERIC_READ 0x80000000
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/* In summary - Relevant file */
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/* access flags from CIFS are */
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/* file_read_data, file_write_data */
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/* file_execute, file_read_attributes*/
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/* write_dac, and delete. */
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#define SET_FILE_READ_RIGHTS (FILE_READ_DATA | FILE_READ_EA \
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| FILE_READ_ATTRIBUTES \
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| DELETE | READ_CONTROL | WRITE_DAC \
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| WRITE_OWNER | SYNCHRONIZE)
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#define SET_FILE_WRITE_RIGHTS (FILE_WRITE_DATA | FILE_APPEND_DATA \
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| FILE_WRITE_EA \
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| FILE_DELETE_CHILD \
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| FILE_WRITE_ATTRIBUTES \
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| DELETE | READ_CONTROL | WRITE_DAC \
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| WRITE_OWNER | SYNCHRONIZE)
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#define SET_FILE_EXEC_RIGHTS (FILE_READ_EA | FILE_WRITE_EA | FILE_EXECUTE \
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| FILE_READ_ATTRIBUTES \
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| FILE_WRITE_ATTRIBUTES \
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| DELETE | READ_CONTROL | WRITE_DAC \
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| WRITE_OWNER | SYNCHRONIZE)
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#define SET_MINIMUM_RIGHTS (FILE_READ_EA | FILE_READ_ATTRIBUTES \
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| READ_CONTROL | SYNCHRONIZE)
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/* generic flags for file open */
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#define GENERIC_READ_FLAGS (READ_CONTROL | FILE_READ_DATA | \
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FILE_READ_ATTRIBUTES | \
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FILE_READ_EA | SYNCHRONIZE)
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#define GENERIC_WRITE_FLAGS (READ_CONTROL | FILE_WRITE_DATA | \
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FILE_WRITE_ATTRIBUTES | FILE_WRITE_EA | \
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FILE_APPEND_DATA | SYNCHRONIZE)
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#define GENERIC_EXECUTE_FLAGS (READ_CONTROL | FILE_EXECUTE | \
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FILE_READ_ATTRIBUTES | SYNCHRONIZE)
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#define GENERIC_ALL_FLAGS (DELETE | READ_CONTROL | WRITE_DAC | \
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WRITE_OWNER | SYNCHRONIZE | FILE_READ_DATA | \
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FILE_WRITE_DATA | FILE_APPEND_DATA | \
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FILE_READ_EA | FILE_WRITE_EA | \
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FILE_EXECUTE | FILE_DELETE_CHILD | \
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FILE_READ_ATTRIBUTES | FILE_WRITE_ATTRIBUTES)
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#define SMB1_PROTO_NUMBER cpu_to_le32(0x424d53ff)
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2021-09-22 20:00:57 +08:00
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#define SMB_COM_NEGOTIATE 0x72
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2021-03-16 09:49:09 +08:00
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#define SMB1_CLIENT_GUID_SIZE (16)
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struct smb_hdr {
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__be32 smb_buf_length;
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__u8 Protocol[4];
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__u8 Command;
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union {
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struct {
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__u8 ErrorClass;
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__u8 Reserved;
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__le16 Error;
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} __packed DosError;
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__le32 CifsError;
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} __packed Status;
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__u8 Flags;
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__le16 Flags2; /* note: le */
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__le16 PidHigh;
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union {
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struct {
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__le32 SequenceNumber; /* le */
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__u32 Reserved; /* zero */
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} __packed Sequence;
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__u8 SecuritySignature[8]; /* le */
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} __packed Signature;
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__u8 pad[2];
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__le16 Tid;
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__le16 Pid;
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__le16 Uid;
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__le16 Mid;
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__u8 WordCount;
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} __packed;
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struct smb_negotiate_req {
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struct smb_hdr hdr; /* wct = 0 */
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__le16 ByteCount;
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unsigned char DialectsArray[1];
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} __packed;
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struct smb_negotiate_rsp {
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struct smb_hdr hdr; /* wct = 17 */
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__le16 DialectIndex; /* 0xFFFF = no dialect acceptable */
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__u8 SecurityMode;
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__le16 MaxMpxCount;
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__le16 MaxNumberVcs;
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__le32 MaxBufferSize;
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__le32 MaxRawSize;
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__le32 SessionKey;
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__le32 Capabilities; /* see below */
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__le32 SystemTimeLow;
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__le32 SystemTimeHigh;
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__le16 ServerTimeZone;
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__u8 EncryptionKeyLength;
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__le16 ByteCount;
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union {
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unsigned char EncryptionKey[8]; /* cap extended security off */
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/* followed by Domain name - if extended security is off */
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/* followed by 16 bytes of server GUID */
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/* then security blob if cap_extended_security negotiated */
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struct {
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unsigned char GUID[SMB1_CLIENT_GUID_SIZE];
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unsigned char SecurityBlob[1];
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} __packed extended_response;
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} __packed u;
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} __packed;
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struct filesystem_attribute_info {
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__le32 Attributes;
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__le32 MaxPathNameComponentLength;
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__le32 FileSystemNameLen;
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__le16 FileSystemName[1]; /* do not have to save this - get subset? */
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} __packed;
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struct filesystem_device_info {
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__le32 DeviceType;
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__le32 DeviceCharacteristics;
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} __packed; /* device info level 0x104 */
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struct filesystem_vol_info {
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__le64 VolumeCreationTime;
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__le32 SerialNumber;
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__le32 VolumeLabelSize;
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__le16 Reserved;
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__le16 VolumeLabel[1];
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} __packed;
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struct filesystem_info {
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__le64 TotalAllocationUnits;
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__le64 FreeAllocationUnits;
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__le32 SectorsPerAllocationUnit;
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__le32 BytesPerSector;
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} __packed; /* size info, level 0x103 */
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#define EXTENDED_INFO_MAGIC 0x43667364 /* Cfsd */
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#define STRING_LENGTH 28
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struct fs_extended_info {
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__le32 magic;
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__le32 version;
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__le32 release;
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__u64 rel_date;
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char version_string[STRING_LENGTH];
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} __packed;
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struct object_id_info {
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char objid[16];
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struct fs_extended_info extended_info;
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} __packed;
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struct file_directory_info {
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__le32 NextEntryOffset;
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__u32 FileIndex;
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__le64 CreationTime;
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__le64 LastAccessTime;
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__le64 LastWriteTime;
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__le64 ChangeTime;
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__le64 EndOfFile;
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__le64 AllocationSize;
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__le32 ExtFileAttributes;
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__le32 FileNameLength;
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char FileName[1];
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} __packed; /* level 0x101 FF resp data */
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struct file_names_info {
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__le32 NextEntryOffset;
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__u32 FileIndex;
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__le32 FileNameLength;
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char FileName[1];
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} __packed; /* level 0xc FF resp data */
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struct file_full_directory_info {
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__le32 NextEntryOffset;
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__u32 FileIndex;
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__le64 CreationTime;
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__le64 LastAccessTime;
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__le64 LastWriteTime;
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__le64 ChangeTime;
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__le64 EndOfFile;
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__le64 AllocationSize;
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__le32 ExtFileAttributes;
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__le32 FileNameLength;
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__le32 EaSize;
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char FileName[1];
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} __packed; /* level 0x102 FF resp */
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struct file_both_directory_info {
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__le32 NextEntryOffset;
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__u32 FileIndex;
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__le64 CreationTime;
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__le64 LastAccessTime;
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__le64 LastWriteTime;
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__le64 ChangeTime;
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__le64 EndOfFile;
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__le64 AllocationSize;
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__le32 ExtFileAttributes;
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__le32 FileNameLength;
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__le32 EaSize; /* length of the xattrs */
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__u8 ShortNameLength;
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__u8 Reserved;
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__u8 ShortName[24];
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char FileName[1];
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} __packed; /* level 0x104 FFrsp data */
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struct file_id_both_directory_info {
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__le32 NextEntryOffset;
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__u32 FileIndex;
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__le64 CreationTime;
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__le64 LastAccessTime;
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__le64 LastWriteTime;
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__le64 ChangeTime;
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__le64 EndOfFile;
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__le64 AllocationSize;
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__le32 ExtFileAttributes;
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__le32 FileNameLength;
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__le32 EaSize; /* length of the xattrs */
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__u8 ShortNameLength;
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__u8 Reserved;
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__u8 ShortName[24];
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__le16 Reserved2;
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__le64 UniqueId;
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char FileName[1];
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} __packed;
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struct file_id_full_dir_info {
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__le32 NextEntryOffset;
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__u32 FileIndex;
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__le64 CreationTime;
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__le64 LastAccessTime;
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__le64 LastWriteTime;
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__le64 ChangeTime;
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__le64 EndOfFile;
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__le64 AllocationSize;
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__le32 ExtFileAttributes;
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__le32 FileNameLength;
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__le32 EaSize; /* EA size */
|
|
|
|
__le32 Reserved;
|
|
|
|
__le64 UniqueId; /* inode num - le since Samba puts ino in low 32 bit*/
|
|
|
|
char FileName[1];
|
|
|
|
} __packed; /* level 0x105 FF rsp data */
|
|
|
|
|
|
|
|
struct smb_version_values {
|
|
|
|
char *version_string;
|
|
|
|
__u16 protocol_id;
|
|
|
|
__le16 lock_cmd;
|
|
|
|
__u32 capabilities;
|
|
|
|
__u32 max_read_size;
|
|
|
|
__u32 max_write_size;
|
|
|
|
__u32 max_trans_size;
|
|
|
|
__u32 large_lock_type;
|
|
|
|
__u32 exclusive_lock_type;
|
|
|
|
__u32 shared_lock_type;
|
|
|
|
__u32 unlock_lock_type;
|
|
|
|
size_t header_size;
|
|
|
|
size_t max_header_size;
|
|
|
|
size_t read_rsp_size;
|
|
|
|
unsigned int cap_unix;
|
|
|
|
unsigned int cap_nt_find;
|
|
|
|
unsigned int cap_large_files;
|
|
|
|
__u16 signing_enabled;
|
|
|
|
__u16 signing_required;
|
|
|
|
size_t create_lease_size;
|
|
|
|
size_t create_durable_size;
|
|
|
|
size_t create_durable_v2_size;
|
|
|
|
size_t create_mxac_size;
|
|
|
|
size_t create_disk_id_size;
|
|
|
|
size_t create_posix_size;
|
|
|
|
};
|
|
|
|
|
|
|
|
struct filesystem_posix_info {
|
|
|
|
/* For undefined recommended transfer size return -1 in that field */
|
|
|
|
__le32 OptimalTransferSize; /* bsize on some os, iosize on other os */
|
|
|
|
__le32 BlockSize;
|
|
|
|
/* The next three fields are in terms of the block size.
|
|
|
|
* (above). If block size is unknown, 4096 would be a
|
|
|
|
* reasonable block size for a server to report.
|
|
|
|
* Note that returning the blocks/blocksavail removes need
|
|
|
|
* to make a second call (to QFSInfo level 0x103 to get this info.
|
|
|
|
* UserBlockAvail is typically less than or equal to BlocksAvail,
|
|
|
|
* if no distinction is made return the same value in each
|
|
|
|
*/
|
|
|
|
__le64 TotalBlocks;
|
|
|
|
__le64 BlocksAvail; /* bfree */
|
|
|
|
__le64 UserBlocksAvail; /* bavail */
|
|
|
|
/* For undefined Node fields or FSID return -1 */
|
|
|
|
__le64 TotalFileNodes;
|
|
|
|
__le64 FreeFileNodes;
|
|
|
|
__le64 FileSysIdentifier; /* fsid */
|
|
|
|
/* NB Namelen comes from FILE_SYSTEM_ATTRIBUTE_INFO call */
|
|
|
|
/* NB flags can come from FILE_SYSTEM_DEVICE_INFO call */
|
|
|
|
} __packed;
|
|
|
|
|
|
|
|
struct smb_version_ops {
|
2021-05-26 17:01:08 +08:00
|
|
|
u16 (*get_cmd_val)(struct ksmbd_work *swork);
|
2021-03-16 09:49:09 +08:00
|
|
|
int (*init_rsp_hdr)(struct ksmbd_work *swork);
|
|
|
|
void (*set_rsp_status)(struct ksmbd_work *swork, __le32 err);
|
|
|
|
int (*allocate_rsp_buf)(struct ksmbd_work *work);
|
|
|
|
int (*set_rsp_credits)(struct ksmbd_work *work);
|
|
|
|
int (*check_user_session)(struct ksmbd_work *work);
|
|
|
|
int (*get_ksmbd_tcon)(struct ksmbd_work *work);
|
|
|
|
bool (*is_sign_req)(struct ksmbd_work *work, unsigned int command);
|
|
|
|
int (*check_sign_req)(struct ksmbd_work *work);
|
|
|
|
void (*set_sign_rsp)(struct ksmbd_work *work);
|
2021-06-18 09:04:19 +08:00
|
|
|
int (*generate_signingkey)(struct ksmbd_session *sess, struct ksmbd_conn *conn);
|
2021-03-16 09:49:09 +08:00
|
|
|
int (*generate_encryptionkey)(struct ksmbd_session *sess);
|
2021-08-12 09:16:40 +08:00
|
|
|
bool (*is_transform_hdr)(void *buf);
|
2021-03-16 09:49:09 +08:00
|
|
|
int (*decrypt_req)(struct ksmbd_work *work);
|
|
|
|
int (*encrypt_resp)(struct ksmbd_work *work);
|
|
|
|
};
|
|
|
|
|
|
|
|
struct smb_version_cmds {
|
|
|
|
int (*proc)(struct ksmbd_work *swork);
|
|
|
|
};
|
|
|
|
|
|
|
|
int ksmbd_min_protocol(void);
|
|
|
|
int ksmbd_max_protocol(void);
|
|
|
|
|
|
|
|
int ksmbd_lookup_protocol_idx(char *str);
|
|
|
|
|
|
|
|
int ksmbd_verify_smb_message(struct ksmbd_work *work);
|
|
|
|
bool ksmbd_smb_request(struct ksmbd_conn *conn);
|
|
|
|
|
|
|
|
int ksmbd_lookup_dialect_by_id(__le16 *cli_dialects, __le16 dialects_count);
|
|
|
|
|
|
|
|
int ksmbd_init_smb_server(struct ksmbd_work *work);
|
|
|
|
|
|
|
|
struct ksmbd_kstat;
|
|
|
|
int ksmbd_populate_dot_dotdot_entries(struct ksmbd_work *work,
|
|
|
|
int info_level,
|
|
|
|
struct ksmbd_file *dir,
|
|
|
|
struct ksmbd_dir_info *d_info,
|
|
|
|
char *search_pattern,
|
|
|
|
int (*fn)(struct ksmbd_conn *,
|
|
|
|
int,
|
|
|
|
struct ksmbd_dir_info *,
|
|
|
|
struct ksmbd_kstat *));
|
|
|
|
|
|
|
|
int ksmbd_extract_shortname(struct ksmbd_conn *conn,
|
|
|
|
const char *longname,
|
|
|
|
char *shortname);
|
|
|
|
|
|
|
|
int ksmbd_smb_negotiate_common(struct ksmbd_work *work, unsigned int command);
|
|
|
|
|
|
|
|
int ksmbd_smb_check_shared_mode(struct file *filp, struct ksmbd_file *curr_fp);
|
|
|
|
int ksmbd_override_fsids(struct ksmbd_work *work);
|
|
|
|
void ksmbd_revert_fsids(struct ksmbd_work *work);
|
|
|
|
|
|
|
|
unsigned int ksmbd_server_side_copy_max_chunk_count(void);
|
|
|
|
unsigned int ksmbd_server_side_copy_max_chunk_size(void);
|
|
|
|
unsigned int ksmbd_server_side_copy_max_total_size(void);
|
|
|
|
bool is_asterisk(char *p);
|
|
|
|
__le32 smb_map_generic_desired_access(__le32 daccess);
|
|
|
|
|
|
|
|
static inline unsigned int get_rfc1002_len(void *buf)
|
|
|
|
{
|
|
|
|
return be32_to_cpu(*((__be32 *)buf)) & 0xffffff;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void inc_rfc1001_len(void *buf, int count)
|
|
|
|
{
|
|
|
|
be32_add_cpu((__be32 *)buf, count);
|
|
|
|
}
|
|
|
|
#endif /* __SMB_COMMON_H__ */
|