469 lines
14 KiB
C
469 lines
14 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
/*
|
|
* Copyright (C) 2018 Samsung Electronics Co., Ltd.
|
|
*/
|
|
|
|
#ifndef __SMB_COMMON_H__
|
|
#define __SMB_COMMON_H__
|
|
|
|
#include <linux/kernel.h>
|
|
|
|
#include "glob.h"
|
|
#include "nterr.h"
|
|
#include "../smbfs_common/smb2pdu.h"
|
|
#include "smb2pdu.h"
|
|
|
|
/* ksmbd's Specific ERRNO */
|
|
#define ESHARE 50000
|
|
|
|
#define SMB1_PROT 0
|
|
#define SMB2_PROT 1
|
|
#define SMB21_PROT 2
|
|
/* multi-protocol negotiate request */
|
|
#define SMB2X_PROT 3
|
|
#define SMB30_PROT 4
|
|
#define SMB302_PROT 5
|
|
#define SMB311_PROT 6
|
|
#define BAD_PROT 0xFFFF
|
|
|
|
#define SMB1_VERSION_STRING "1.0"
|
|
#define SMB20_VERSION_STRING "2.0"
|
|
#define SMB21_VERSION_STRING "2.1"
|
|
#define SMB30_VERSION_STRING "3.0"
|
|
#define SMB302_VERSION_STRING "3.02"
|
|
#define SMB311_VERSION_STRING "3.1.1"
|
|
|
|
#define SMB_ECHO_INTERVAL (60 * HZ)
|
|
|
|
#define CIFS_DEFAULT_IOSIZE (64 * 1024)
|
|
#define MAX_CIFS_SMALL_BUFFER_SIZE 448 /* big enough for most */
|
|
|
|
#define MAX_STREAM_PROT_LEN 0x00FFFFFF
|
|
|
|
/* Responses when opening a file. */
|
|
#define F_SUPERSEDED 0
|
|
#define F_OPENED 1
|
|
#define F_CREATED 2
|
|
#define F_OVERWRITTEN 3
|
|
|
|
/*
|
|
* File Attribute flags
|
|
*/
|
|
#define ATTR_POSIX_SEMANTICS 0x01000000
|
|
#define ATTR_BACKUP_SEMANTICS 0x02000000
|
|
#define ATTR_DELETE_ON_CLOSE 0x04000000
|
|
#define ATTR_SEQUENTIAL_SCAN 0x08000000
|
|
#define ATTR_RANDOM_ACCESS 0x10000000
|
|
#define ATTR_NO_BUFFERING 0x20000000
|
|
#define ATTR_WRITE_THROUGH 0x80000000
|
|
|
|
/* List of FileSystemAttributes - see 2.5.1 of MS-FSCC */
|
|
#define FILE_SUPPORTS_SPARSE_VDL 0x10000000 /* faster nonsparse extend */
|
|
#define FILE_SUPPORTS_BLOCK_REFCOUNTING 0x08000000 /* allow ioctl dup extents */
|
|
#define FILE_SUPPORT_INTEGRITY_STREAMS 0x04000000
|
|
#define FILE_SUPPORTS_USN_JOURNAL 0x02000000
|
|
#define FILE_SUPPORTS_OPEN_BY_FILE_ID 0x01000000
|
|
#define FILE_SUPPORTS_EXTENDED_ATTRIBUTES 0x00800000
|
|
#define FILE_SUPPORTS_HARD_LINKS 0x00400000
|
|
#define FILE_SUPPORTS_TRANSACTIONS 0x00200000
|
|
#define FILE_SEQUENTIAL_WRITE_ONCE 0x00100000
|
|
#define FILE_READ_ONLY_VOLUME 0x00080000
|
|
#define FILE_NAMED_STREAMS 0x00040000
|
|
#define FILE_SUPPORTS_ENCRYPTION 0x00020000
|
|
#define FILE_SUPPORTS_OBJECT_IDS 0x00010000
|
|
#define FILE_VOLUME_IS_COMPRESSED 0x00008000
|
|
#define FILE_SUPPORTS_REMOTE_STORAGE 0x00000100
|
|
#define FILE_SUPPORTS_REPARSE_POINTS 0x00000080
|
|
#define FILE_SUPPORTS_SPARSE_FILES 0x00000040
|
|
#define FILE_VOLUME_QUOTAS 0x00000020
|
|
#define FILE_FILE_COMPRESSION 0x00000010
|
|
#define FILE_PERSISTENT_ACLS 0x00000008
|
|
#define FILE_UNICODE_ON_DISK 0x00000004
|
|
#define FILE_CASE_PRESERVED_NAMES 0x00000002
|
|
#define FILE_CASE_SENSITIVE_SEARCH 0x00000001
|
|
|
|
#define FILE_READ_DATA 0x00000001 /* Data can be read from the file */
|
|
#define FILE_WRITE_DATA 0x00000002 /* Data can be written to the file */
|
|
#define FILE_APPEND_DATA 0x00000004 /* Data can be appended to the file */
|
|
#define FILE_READ_EA 0x00000008 /* Extended attributes associated */
|
|
/* with the file can be read */
|
|
#define FILE_WRITE_EA 0x00000010 /* Extended attributes associated */
|
|
/* with the file can be written */
|
|
#define FILE_EXECUTE 0x00000020 /*Data can be read into memory from */
|
|
/* the file using system paging I/O */
|
|
#define FILE_DELETE_CHILD 0x00000040
|
|
#define FILE_READ_ATTRIBUTES 0x00000080 /* Attributes associated with the */
|
|
/* file can be read */
|
|
#define FILE_WRITE_ATTRIBUTES 0x00000100 /* Attributes associated with the */
|
|
/* file can be written */
|
|
#define DELETE 0x00010000 /* The file can be deleted */
|
|
#define READ_CONTROL 0x00020000 /* The access control list and */
|
|
/* ownership associated with the */
|
|
/* file can be read */
|
|
#define WRITE_DAC 0x00040000 /* The access control list and */
|
|
/* ownership associated with the */
|
|
/* file can be written. */
|
|
#define WRITE_OWNER 0x00080000 /* Ownership information associated */
|
|
/* with the file can be written */
|
|
#define SYNCHRONIZE 0x00100000 /* The file handle can waited on to */
|
|
/* synchronize with the completion */
|
|
/* of an input/output request */
|
|
#define GENERIC_ALL 0x10000000
|
|
#define GENERIC_EXECUTE 0x20000000
|
|
#define GENERIC_WRITE 0x40000000
|
|
#define GENERIC_READ 0x80000000
|
|
/* In summary - Relevant file */
|
|
/* access flags from CIFS are */
|
|
/* file_read_data, file_write_data */
|
|
/* file_execute, file_read_attributes*/
|
|
/* write_dac, and delete. */
|
|
|
|
#define SET_FILE_READ_RIGHTS (FILE_READ_DATA | FILE_READ_EA \
|
|
| FILE_READ_ATTRIBUTES \
|
|
| DELETE | READ_CONTROL | WRITE_DAC \
|
|
| WRITE_OWNER | SYNCHRONIZE)
|
|
#define SET_FILE_WRITE_RIGHTS (FILE_WRITE_DATA | FILE_APPEND_DATA \
|
|
| FILE_WRITE_EA \
|
|
| FILE_DELETE_CHILD \
|
|
| FILE_WRITE_ATTRIBUTES \
|
|
| DELETE | READ_CONTROL | WRITE_DAC \
|
|
| WRITE_OWNER | SYNCHRONIZE)
|
|
#define SET_FILE_EXEC_RIGHTS (FILE_READ_EA | FILE_WRITE_EA | FILE_EXECUTE \
|
|
| FILE_READ_ATTRIBUTES \
|
|
| FILE_WRITE_ATTRIBUTES \
|
|
| DELETE | READ_CONTROL | WRITE_DAC \
|
|
| WRITE_OWNER | SYNCHRONIZE)
|
|
|
|
#define SET_MINIMUM_RIGHTS (FILE_READ_EA | FILE_READ_ATTRIBUTES \
|
|
| READ_CONTROL | SYNCHRONIZE)
|
|
|
|
/* generic flags for file open */
|
|
#define GENERIC_READ_FLAGS (READ_CONTROL | FILE_READ_DATA | \
|
|
FILE_READ_ATTRIBUTES | \
|
|
FILE_READ_EA | SYNCHRONIZE)
|
|
|
|
#define GENERIC_WRITE_FLAGS (READ_CONTROL | FILE_WRITE_DATA | \
|
|
FILE_WRITE_ATTRIBUTES | FILE_WRITE_EA | \
|
|
FILE_APPEND_DATA | SYNCHRONIZE)
|
|
|
|
#define GENERIC_EXECUTE_FLAGS (READ_CONTROL | FILE_EXECUTE | \
|
|
FILE_READ_ATTRIBUTES | SYNCHRONIZE)
|
|
|
|
#define GENERIC_ALL_FLAGS (DELETE | READ_CONTROL | WRITE_DAC | \
|
|
WRITE_OWNER | SYNCHRONIZE | FILE_READ_DATA | \
|
|
FILE_WRITE_DATA | FILE_APPEND_DATA | \
|
|
FILE_READ_EA | FILE_WRITE_EA | \
|
|
FILE_EXECUTE | FILE_DELETE_CHILD | \
|
|
FILE_READ_ATTRIBUTES | FILE_WRITE_ATTRIBUTES)
|
|
|
|
#define SMB1_PROTO_NUMBER cpu_to_le32(0x424d53ff)
|
|
#define SMB_COM_NEGOTIATE 0x72
|
|
#define SMB1_CLIENT_GUID_SIZE (16)
|
|
|
|
#define SMBFLG_RESPONSE 0x80 /* this PDU is a response from server */
|
|
|
|
#define SMBFLG2_IS_LONG_NAME cpu_to_le16(0x40)
|
|
#define SMBFLG2_EXT_SEC cpu_to_le16(0x800)
|
|
#define SMBFLG2_ERR_STATUS cpu_to_le16(0x4000)
|
|
#define SMBFLG2_UNICODE cpu_to_le16(0x8000)
|
|
|
|
struct smb_hdr {
|
|
__be32 smb_buf_length;
|
|
__u8 Protocol[4];
|
|
__u8 Command;
|
|
union {
|
|
struct {
|
|
__u8 ErrorClass;
|
|
__u8 Reserved;
|
|
__le16 Error;
|
|
} __packed DosError;
|
|
__le32 CifsError;
|
|
} __packed Status;
|
|
__u8 Flags;
|
|
__le16 Flags2; /* note: le */
|
|
__le16 PidHigh;
|
|
union {
|
|
struct {
|
|
__le32 SequenceNumber; /* le */
|
|
__u32 Reserved; /* zero */
|
|
} __packed Sequence;
|
|
__u8 SecuritySignature[8]; /* le */
|
|
} __packed Signature;
|
|
__u8 pad[2];
|
|
__le16 Tid;
|
|
__le16 Pid;
|
|
__le16 Uid;
|
|
__le16 Mid;
|
|
__u8 WordCount;
|
|
} __packed;
|
|
|
|
struct smb_negotiate_req {
|
|
struct smb_hdr hdr; /* wct = 0 */
|
|
__le16 ByteCount;
|
|
unsigned char DialectsArray[1];
|
|
} __packed;
|
|
|
|
struct smb_negotiate_rsp {
|
|
struct smb_hdr hdr; /* wct = 17 */
|
|
__le16 DialectIndex; /* 0xFFFF = no dialect acceptable */
|
|
__le16 ByteCount;
|
|
} __packed;
|
|
|
|
struct filesystem_attribute_info {
|
|
__le32 Attributes;
|
|
__le32 MaxPathNameComponentLength;
|
|
__le32 FileSystemNameLen;
|
|
__le16 FileSystemName[1]; /* do not have to save this - get subset? */
|
|
} __packed;
|
|
|
|
struct filesystem_device_info {
|
|
__le32 DeviceType;
|
|
__le32 DeviceCharacteristics;
|
|
} __packed; /* device info level 0x104 */
|
|
|
|
struct filesystem_vol_info {
|
|
__le64 VolumeCreationTime;
|
|
__le32 SerialNumber;
|
|
__le32 VolumeLabelSize;
|
|
__le16 Reserved;
|
|
__le16 VolumeLabel[1];
|
|
} __packed;
|
|
|
|
struct filesystem_info {
|
|
__le64 TotalAllocationUnits;
|
|
__le64 FreeAllocationUnits;
|
|
__le32 SectorsPerAllocationUnit;
|
|
__le32 BytesPerSector;
|
|
} __packed; /* size info, level 0x103 */
|
|
|
|
#define EXTENDED_INFO_MAGIC 0x43667364 /* Cfsd */
|
|
#define STRING_LENGTH 28
|
|
|
|
struct fs_extended_info {
|
|
__le32 magic;
|
|
__le32 version;
|
|
__le32 release;
|
|
__u64 rel_date;
|
|
char version_string[STRING_LENGTH];
|
|
} __packed;
|
|
|
|
struct object_id_info {
|
|
char objid[16];
|
|
struct fs_extended_info extended_info;
|
|
} __packed;
|
|
|
|
struct file_directory_info {
|
|
__le32 NextEntryOffset;
|
|
__u32 FileIndex;
|
|
__le64 CreationTime;
|
|
__le64 LastAccessTime;
|
|
__le64 LastWriteTime;
|
|
__le64 ChangeTime;
|
|
__le64 EndOfFile;
|
|
__le64 AllocationSize;
|
|
__le32 ExtFileAttributes;
|
|
__le32 FileNameLength;
|
|
char FileName[];
|
|
} __packed; /* level 0x101 FF resp data */
|
|
|
|
struct file_names_info {
|
|
__le32 NextEntryOffset;
|
|
__u32 FileIndex;
|
|
__le32 FileNameLength;
|
|
char FileName[];
|
|
} __packed; /* level 0xc FF resp data */
|
|
|
|
struct file_full_directory_info {
|
|
__le32 NextEntryOffset;
|
|
__u32 FileIndex;
|
|
__le64 CreationTime;
|
|
__le64 LastAccessTime;
|
|
__le64 LastWriteTime;
|
|
__le64 ChangeTime;
|
|
__le64 EndOfFile;
|
|
__le64 AllocationSize;
|
|
__le32 ExtFileAttributes;
|
|
__le32 FileNameLength;
|
|
__le32 EaSize;
|
|
char FileName[];
|
|
} __packed; /* level 0x102 FF resp */
|
|
|
|
struct file_both_directory_info {
|
|
__le32 NextEntryOffset;
|
|
__u32 FileIndex;
|
|
__le64 CreationTime;
|
|
__le64 LastAccessTime;
|
|
__le64 LastWriteTime;
|
|
__le64 ChangeTime;
|
|
__le64 EndOfFile;
|
|
__le64 AllocationSize;
|
|
__le32 ExtFileAttributes;
|
|
__le32 FileNameLength;
|
|
__le32 EaSize; /* length of the xattrs */
|
|
__u8 ShortNameLength;
|
|
__u8 Reserved;
|
|
__u8 ShortName[24];
|
|
char FileName[];
|
|
} __packed; /* level 0x104 FFrsp data */
|
|
|
|
struct file_id_both_directory_info {
|
|
__le32 NextEntryOffset;
|
|
__u32 FileIndex;
|
|
__le64 CreationTime;
|
|
__le64 LastAccessTime;
|
|
__le64 LastWriteTime;
|
|
__le64 ChangeTime;
|
|
__le64 EndOfFile;
|
|
__le64 AllocationSize;
|
|
__le32 ExtFileAttributes;
|
|
__le32 FileNameLength;
|
|
__le32 EaSize; /* length of the xattrs */
|
|
__u8 ShortNameLength;
|
|
__u8 Reserved;
|
|
__u8 ShortName[24];
|
|
__le16 Reserved2;
|
|
__le64 UniqueId;
|
|
char FileName[];
|
|
} __packed;
|
|
|
|
struct file_id_full_dir_info {
|
|
__le32 NextEntryOffset;
|
|
__u32 FileIndex;
|
|
__le64 CreationTime;
|
|
__le64 LastAccessTime;
|
|
__le64 LastWriteTime;
|
|
__le64 ChangeTime;
|
|
__le64 EndOfFile;
|
|
__le64 AllocationSize;
|
|
__le32 ExtFileAttributes;
|
|
__le32 FileNameLength;
|
|
__le32 EaSize; /* EA size */
|
|
__le32 Reserved;
|
|
__le64 UniqueId; /* inode num - le since Samba puts ino in low 32 bit*/
|
|
char FileName[];
|
|
} __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 max_credits;
|
|
__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 {
|
|
u16 (*get_cmd_val)(struct ksmbd_work *swork);
|
|
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);
|
|
int (*generate_signingkey)(struct ksmbd_session *sess, struct ksmbd_conn *conn);
|
|
int (*generate_encryptionkey)(struct ksmbd_conn *conn, struct ksmbd_session *sess);
|
|
bool (*is_transform_hdr)(void *buf);
|
|
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);
|
|
|
|
void 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__ */
|