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smb.py
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# SECUREAUTH LABS. Copyright 2018 SecureAuth Corporation. All rights reserved.
#
# This software is provided under under a slightly modified version
# of the Apache Software License. See the accompanying LICENSE file
# for more information.
#
# Copyright (C) 2001 Michael Teo <[email protected]>
# smb.py - SMB/CIFS library
#
# This software is provided 'as-is', without any express or implied warranty.
# In no event will the author be held liable for any damages arising from the
# use of this software.
#
# Permission is granted to anyone to use this software for any purpose,
# including commercial applications, and to alter it and redistribute it
# freely, subject to the following restrictions:
#
# 1. The origin of this software must not be misrepresented; you must not
# claim that you wrote the original software. If you use this software
# in a product, an acknowledgment in the product documentation would be
# appreciated but is not required.
#
# 2. Altered source versions must be plainly marked as such, and must not be
# misrepresented as being the original software.
#
# 3. This notice cannot be removed or altered from any source distribution.
#
# Altered source done by Alberto Solino (@agsolino)
# Todo:
# [ ] Try [SMB]transport fragmentation using Transact requests
# [ ] Try other methods of doing write (write_raw, transact2, write, write_and_unlock, write_and_close, write_mpx)
# [-] Try replacements for SMB_COM_NT_CREATE_ANDX (CREATE, T_TRANSACT_CREATE, OPEN_ANDX works
# [x] Fix forceWriteAndx, which needs to send a RecvRequest, because recv() will not send it
# [x] Fix Recv() when using RecvAndx and the answer comes splet in several packets
# [ ] Try [SMB]transport fragmentation with overlapping segments
# [ ] Try [SMB]transport fragmentation with out of order segments
# [x] Do chained AndX requests
# [ ] Transform the rest of the calls to structure
# [X] Implement TRANS/TRANS2 reassembly for list_path
from __future__ import division
from __future__ import print_function
import os
import socket
from binascii import a2b_hex
import datetime
from struct import pack, unpack
from contextlib import contextmanager
from impacket import nmb, ntlm, nt_errors, LOG
from impacket.structure import Structure
from impacket.spnego import SPNEGO_NegTokenInit, TypesMech, SPNEGO_NegTokenResp, ASN1_OID, asn1encode, ASN1_AID
from impacket.krb5.gssapi import KRB5_AP_REQ
# For signing
import hashlib
unicode_support = 0
unicode_convert = 1
# Dialect for SMB1
SMB_DIALECT = 'NT LM 0.12'
# Shared Device Type
SHARED_DISK = 0x00
SHARED_DISK_HIDDEN = 0x80000000
SHARED_PRINT_QUEUE = 0x01
SHARED_DEVICE = 0x02
SHARED_IPC = 0x03
# Extended attributes mask
ATTR_ARCHIVE = 0x020
ATTR_COMPRESSED = 0x800
ATTR_NORMAL = 0x080
ATTR_HIDDEN = 0x002
ATTR_READONLY = 0x001
ATTR_TEMPORARY = 0x100
ATTR_DIRECTORY = 0x010
ATTR_SYSTEM = 0x004
# Service Type
SERVICE_DISK = 'A:'
SERVICE_PRINTER = 'LPT1:'
SERVICE_IPC = 'IPC'
SERVICE_COMM = 'COMM'
SERVICE_ANY = '?????'
# Server Type (Can be used to mask with SMBMachine.get_type() or SMBDomain.get_type())
SV_TYPE_WORKSTATION = 0x00000001
SV_TYPE_SERVER = 0x00000002
SV_TYPE_SQLSERVER = 0x00000004
SV_TYPE_DOMAIN_CTRL = 0x00000008
SV_TYPE_DOMAIN_BAKCTRL = 0x00000010
SV_TYPE_TIME_SOURCE = 0x00000020
SV_TYPE_AFP = 0x00000040
SV_TYPE_NOVELL = 0x00000080
SV_TYPE_DOMAIN_MEMBER = 0x00000100
SV_TYPE_PRINTQ_SERVER = 0x00000200
SV_TYPE_DIALIN_SERVER = 0x00000400
SV_TYPE_XENIX_SERVER = 0x00000800
SV_TYPE_NT = 0x00001000
SV_TYPE_WFW = 0x00002000
SV_TYPE_SERVER_NT = 0x00004000
SV_TYPE_POTENTIAL_BROWSER = 0x00010000
SV_TYPE_BACKUP_BROWSER = 0x00020000
SV_TYPE_MASTER_BROWSER = 0x00040000
SV_TYPE_DOMAIN_MASTER = 0x00080000
SV_TYPE_LOCAL_LIST_ONLY = 0x40000000
SV_TYPE_DOMAIN_ENUM = 0x80000000
# Options values for SMB.stor_file and SMB.retr_file
SMB_O_CREAT = 0x10 # Create the file if file does not exists. Otherwise, operation fails.
SMB_O_EXCL = 0x00 # When used with SMB_O_CREAT, operation fails if file exists. Cannot be used with SMB_O_OPEN.
SMB_O_OPEN = 0x01 # Open the file if the file exists
SMB_O_TRUNC = 0x02 # Truncate the file if the file exists
# Share Access Mode
SMB_SHARE_COMPAT = 0x00
SMB_SHARE_DENY_EXCL = 0x10
SMB_SHARE_DENY_WRITE = 0x20
SMB_SHARE_DENY_READEXEC = 0x30
SMB_SHARE_DENY_NONE = 0x40
SMB_ACCESS_READ = 0x00
SMB_ACCESS_WRITE = 0x01
SMB_ACCESS_READWRITE = 0x02
SMB_ACCESS_EXEC = 0x03
TRANS_DISCONNECT_TID = 1
TRANS_NO_RESPONSE = 2
STATUS_SUCCESS = 0x00000000
STATUS_LOGON_FAILURE = 0xC000006D
STATUS_LOGON_TYPE_NOT_GRANTED = 0xC000015B
MAX_TFRAG_SIZE = 5840
EVASION_NONE = 0
EVASION_LOW = 1
EVASION_HIGH = 2
EVASION_MAX = 3
RPC_X_BAD_STUB_DATA = 0x6F7
# SMB_FILE_ATTRIBUTES
SMB_FILE_ATTRIBUTE_NORMAL = 0x0000
SMB_FILE_ATTRIBUTE_READONLY = 0x0001
SMB_FILE_ATTRIBUTE_HIDDEN = 0x0002
SMB_FILE_ATTRIBUTE_SYSTEM = 0x0004
SMB_FILE_ATTRIBUTE_VOLUME = 0x0008
SMB_FILE_ATTRIBUTE_DIRECTORY = 0x0010
SMB_FILE_ATTRIBUTE_ARCHIVE = 0x0020
SMB_SEARCH_ATTRIBUTE_READONLY = 0x0100
SMB_SEARCH_ATTRIBUTE_HIDDEN = 0x0200
SMB_SEARCH_ATTRIBUTE_SYSTEM = 0x0400
SMB_SEARCH_ATTRIBUTE_DIRECTORY = 0x1000
SMB_SEARCH_ATTRIBUTE_ARCHIVE = 0x2000
# Session SetupAndX Action flags
SMB_SETUP_GUEST = 0x01
SMB_SETUP_USE_LANMAN_KEY = 0x02
# QUERY_INFORMATION levels
SMB_INFO_ALLOCATION = 0x0001
SMB_INFO_VOLUME = 0x0002
FILE_FS_SIZE_INFORMATION = 0x0003
SMB_QUERY_FS_VOLUME_INFO = 0x0102
SMB_QUERY_FS_SIZE_INFO = 0x0103
SMB_QUERY_FILE_EA_INFO = 0x0103
SMB_QUERY_FS_DEVICE_INFO = 0x0104
SMB_QUERY_FS_ATTRIBUTE_INFO = 0x0105
SMB_QUERY_FILE_BASIC_INFO = 0x0101
SMB_QUERY_FILE_STANDARD_INFO = 0x0102
SMB_QUERY_FILE_ALL_INFO = 0x0107
FILE_FS_FULL_SIZE_INFORMATION = 0x03EF
# SET_INFORMATION levels
SMB_SET_FILE_DISPOSITION_INFO = 0x0102
SMB_SET_FILE_BASIC_INFO = 0x0101
SMB_SET_FILE_END_OF_FILE_INFO = 0x0104
# File System Attributes
FILE_CASE_SENSITIVE_SEARCH = 0x00000001
FILE_CASE_PRESERVED_NAMES = 0x00000002
FILE_UNICODE_ON_DISK = 0x00000004
FILE_PERSISTENT_ACLS = 0x00000008
FILE_FILE_COMPRESSION = 0x00000010
FILE_VOLUME_IS_COMPRESSED = 0x00008000
# FIND_FIRST2 flags and levels
SMB_FIND_CLOSE_AFTER_REQUEST = 0x0001
SMB_FIND_CLOSE_AT_EOS = 0x0002
SMB_FIND_RETURN_RESUME_KEYS = 0x0004
SMB_FIND_CONTINUE_FROM_LAST = 0x0008
SMB_FIND_WITH_BACKUP_INTENT = 0x0010
FILE_DIRECTORY_FILE = 0x00000001
FILE_DELETE_ON_CLOSE = 0x00001000
FILE_NON_DIRECTORY_FILE = 0x00000040
SMB_FIND_INFO_STANDARD = 0x0001
SMB_FIND_FILE_DIRECTORY_INFO = 0x0101
SMB_FIND_FILE_FULL_DIRECTORY_INFO= 0x0102
SMB_FIND_FILE_NAMES_INFO = 0x0103
SMB_FIND_FILE_BOTH_DIRECTORY_INFO= 0x0104
SMB_FIND_FILE_ID_FULL_DIRECTORY_INFO = 0x105
SMB_FIND_FILE_ID_BOTH_DIRECTORY_INFO = 0x106
# DesiredAccess flags
FILE_READ_DATA = 0x00000001
FILE_WRITE_DATA = 0x00000002
FILE_APPEND_DATA = 0x00000004
FILE_EXECUTE = 0x00000020
MAXIMUM_ALLOWED = 0x02000000
GENERIC_ALL = 0x10000000
GENERIC_EXECUTE = 0x20000000
GENERIC_WRITE = 0x40000000
GENERIC_READ = 0x80000000
# ShareAccess flags
FILE_SHARE_NONE = 0x00000000
FILE_SHARE_READ = 0x00000001
FILE_SHARE_WRITE = 0x00000002
FILE_SHARE_DELETE = 0x00000004
# CreateDisposition flags
FILE_SUPERSEDE = 0x00000000
FILE_OPEN = 0x00000001
FILE_CREATE = 0x00000002
FILE_OPEN_IF = 0x00000003
FILE_OVERWRITE = 0x00000004
FILE_OVERWRITE_IF = 0x00000005
def strerror(errclass, errcode):
if errclass == 0x01:
return 'OS error', ERRDOS.get(errcode, 'Unknown error')
elif errclass == 0x02:
return 'Server error', ERRSRV.get(errcode, 'Unknown error')
elif errclass == 0x03:
return 'Hardware error', ERRHRD.get(errcode, 'Unknown error')
# This is not a standard error class for SMB
#elif errclass == 0x80:
# return 'Browse error', ERRBROWSE.get(errcode, 'Unknown error')
elif errclass == 0xff:
return 'Bad command', 'Bad command. Please file bug report'
else:
return 'Unknown error', 'Unknown error'
# Raised when an error has occurred during a session
class SessionError(Exception):
# SMB X/Open error codes for the ERRDOS error class
ERRsuccess = 0
ERRbadfunc = 1
ERRbadfile = 2
ERRbadpath = 3
ERRnofids = 4
ERRnoaccess = 5
ERRbadfid = 6
ERRbadmcb = 7
ERRnomem = 8
ERRbadmem = 9
ERRbadenv = 10
ERRbadaccess = 12
ERRbaddata = 13
ERRres = 14
ERRbaddrive = 15
ERRremcd = 16
ERRdiffdevice = 17
ERRnofiles = 18
ERRgeneral = 31
ERRbadshare = 32
ERRlock = 33
ERRunsup = 50
ERRnetnamedel = 64
ERRnosuchshare = 67
ERRfilexists = 80
ERRinvalidparam = 87
ERRcannotopen = 110
ERRinsufficientbuffer = 122
ERRinvalidname = 123
ERRunknownlevel = 124
ERRnotlocked = 158
ERRrename = 183
ERRbadpipe = 230
ERRpipebusy = 231
ERRpipeclosing = 232
ERRnotconnected = 233
ERRmoredata = 234
ERRnomoreitems = 259
ERRbaddirectory = 267
ERReasnotsupported = 282
ERRlogonfailure = 1326
ERRbuftoosmall = 2123
ERRunknownipc = 2142
ERRnosuchprintjob = 2151
ERRinvgroup = 2455
# here's a special one from observing NT
ERRnoipc = 66
# These errors seem to be only returned by the NT printer driver system
ERRdriveralreadyinstalled = 1795
ERRunknownprinterport = 1796
ERRunknownprinterdriver = 1797
ERRunknownprintprocessor = 1798
ERRinvalidseparatorfile = 1799
ERRinvalidjobpriority = 1800
ERRinvalidprintername = 1801
ERRprinteralreadyexists = 1802
ERRinvalidprintercommand = 1803
ERRinvaliddatatype = 1804
ERRinvalidenvironment = 1805
ERRunknownprintmonitor = 3000
ERRprinterdriverinuse = 3001
ERRspoolfilenotfound = 3002
ERRnostartdoc = 3003
ERRnoaddjob = 3004
ERRprintprocessoralreadyinstalled = 3005
ERRprintmonitoralreadyinstalled = 3006
ERRinvalidprintmonitor = 3007
ERRprintmonitorinuse = 3008
ERRprinterhasjobsqueued = 3009
# Error codes for the ERRSRV class
ERRerror = 1
ERRbadpw = 2
ERRbadtype = 3
ERRaccess = 4
ERRinvnid = 5
ERRinvnetname = 6
ERRinvdevice = 7
ERRqfull = 49
ERRqtoobig = 50
ERRinvpfid = 52
ERRsmbcmd = 64
ERRsrverror = 65
ERRfilespecs = 67
ERRbadlink = 68
ERRbadpermits = 69
ERRbadpid = 70
ERRsetattrmode = 71
ERRpaused = 81
ERRmsgoff = 82
ERRnoroom = 83
ERRrmuns = 87
ERRtimeout = 88
ERRnoresource = 89
ERRtoomanyuids = 90
ERRbaduid = 91
ERRuseMPX = 250
ERRuseSTD = 251
ERRcontMPX = 252
ERRbadPW = None
ERRnosupport = 0
ERRunknownsmb = 22
# Error codes for the ERRHRD class
ERRnowrite = 19
ERRbadunit = 20
ERRnotready = 21
ERRbadcmd = 22
ERRdata = 23
ERRbadreq = 24
ERRseek = 25
ERRbadmedia = 26
ERRbadsector = 27
ERRnopaper = 28
ERRwrite = 29
ERRread = 30
ERRwrongdisk = 34
ERRFCBunavail = 35
ERRsharebufexc = 36
ERRdiskfull = 39
hard_msgs = {
19: ("ERRnowrite", "Attempt to write on write-protected diskette."),
20: ("ERRbadunit", "Unknown unit."),
21: ("ERRnotready", "Drive not ready."),
22: ("ERRbadcmd", "Unknown command."),
23: ("ERRdata", "Data error (CRC)."),
24: ("ERRbadreq", "Bad request structure length."),
25: ("ERRseek", "Seek error."),
26: ("ERRbadmedia", "Unknown media type."),
27: ("ERRbadsector", "Sector not found."),
28: ("ERRnopaper", "Printer out of paper."),
29: ("ERRwrite", "Write fault."),
30: ("ERRread", "Read fault."),
31: ("ERRgeneral", "General failure."),
32: ("ERRbadshare", "An open conflicts with an existing open."),
33: ("ERRlock", "A Lock request conflicted with an existing lock or specified an invalid mode, or an Unlock requested attempted to remove a lock held by another process."),
34: ("ERRwrongdisk", "The wrong disk was found in a drive."),
35: ("ERRFCBUnavail", "No FCBs are available to process request."),
36: ("ERRsharebufexc", "A sharing buffer has been exceeded.")
}
dos_msgs = {
ERRbadfunc: ("ERRbadfunc", "Invalid function."),
ERRbadfile: ("ERRbadfile", "File not found."),
ERRbadpath: ("ERRbadpath", "Directory invalid."),
ERRnofids: ("ERRnofids", "No file descriptors available"),
ERRnoaccess: ("ERRnoaccess", "Access denied."),
ERRbadfid: ("ERRbadfid", "Invalid file handle."),
ERRbadmcb: ("ERRbadmcb", "Memory control blocks destroyed."),
ERRnomem: ("ERRnomem", "Insufficient server memory to perform the requested function."),
ERRbadmem: ("ERRbadmem", "Invalid memory block address."),
ERRbadenv: ("ERRbadenv", "Invalid environment."),
11: ("ERRbadformat", "Invalid format."),
ERRbadaccess: ("ERRbadaccess", "Invalid open mode."),
ERRbaddata: ("ERRbaddata", "Invalid data."),
ERRres: ("ERRres", "reserved."),
ERRbaddrive: ("ERRbaddrive", "Invalid drive specified."),
ERRremcd: ("ERRremcd", "A Delete Directory request attempted to remove the server's current directory."),
ERRdiffdevice: ("ERRdiffdevice", "Not same device."),
ERRnofiles: ("ERRnofiles", "A File Search command can find no more files matching the specified criteria."),
ERRbadshare: ("ERRbadshare", "The sharing mode specified for an Open conflicts with existing FIDs on the file."),
ERRlock: ("ERRlock", "A Lock request conflicted with an existing lock or specified an invalid mode, or an Unlock requested attempted to remove a lock held by another process."),
ERRunsup: ("ERRunsup", "The operation is unsupported"),
ERRnosuchshare: ("ERRnosuchshare", "You specified an invalid share name"),
ERRfilexists: ("ERRfilexists", "The file named in a Create Directory, Make New File or Link request already exists."),
ERRinvalidname: ("ERRinvalidname", "Invalid name"),
ERRbadpipe: ("ERRbadpipe", "Pipe invalid."),
ERRpipebusy: ("ERRpipebusy", "All instances of the requested pipe are busy."),
ERRpipeclosing: ("ERRpipeclosing", "Pipe close in progress."),
ERRnotconnected: ("ERRnotconnected", "No process on other end of pipe."),
ERRmoredata: ("ERRmoredata", "There is more data to be returned."),
ERRinvgroup: ("ERRinvgroup", "Invalid workgroup (try the -W option)"),
ERRlogonfailure: ("ERRlogonfailure", "Logon failure"),
ERRdiskfull: ("ERRdiskfull", "Disk full"),
ERRgeneral: ("ERRgeneral", "General failure"),
ERRunknownlevel: ("ERRunknownlevel", "Unknown info level")
}
server_msgs = {
1: ("ERRerror", "Non-specific error code."),
2: ("ERRbadpw", "Bad password - name/password pair in a Tree Connect or Session Setup are invalid."),
3: ("ERRbadtype", "reserved."),
4: ("ERRaccess", "The requester does not have the necessary access rights within the specified context for the requested function. The context is defined by the TID or the UID."),
5: ("ERRinvnid", "The tree ID (TID) specified in a command was invalid."),
6: ("ERRinvnetname", "Invalid network name in tree connect."),
7: ("ERRinvdevice", "Invalid device - printer request made to non-printer connection or non-printer request made to printer connection."),
49: ("ERRqfull", "Print queue full (files) -- returned by open print file."),
50: ("ERRqtoobig", "Print queue full -- no space."),
51: ("ERRqeof", "EOF on print queue dump."),
52: ("ERRinvpfid", "Invalid print file FID."),
64: ("ERRsmbcmd", "The server did not recognize the command received."),
65: ("ERRsrverror","The server encountered an internal error, e.g., system file unavailable."),
67: ("ERRfilespecs", "The file handle (FID) and pathname parameters contained an invalid combination of values."),
68: ("ERRreserved", "reserved."),
69: ("ERRbadpermits", "The access permissions specified for a file or directory are not a valid combination. The server cannot set the requested attribute."),
70: ("ERRreserved", "reserved."),
71: ("ERRsetattrmode", "The attribute mode in the Set File Attribute request is invalid."),
81: ("ERRpaused", "Server is paused."),
82: ("ERRmsgoff", "Not receiving messages."),
83: ("ERRnoroom", "No room to buffer message."),
87: ("ERRrmuns", "Too many remote user names."),
88: ("ERRtimeout", "Operation timed out."),
89: ("ERRnoresource", "No resources currently available for request."),
90: ("ERRtoomanyuids", "Too many UIDs active on this session."),
91: ("ERRbaduid", "The UID is not known as a valid ID on this session."),
250: ("ERRusempx","Temp unable to support Raw, use MPX mode."),
251: ("ERRusestd","Temp unable to support Raw, use standard read/write."),
252: ("ERRcontmpx", "Continue in MPX mode."),
253: ("ERRreserved", "reserved."),
254: ("ERRreserved", "reserved."),
0xFFFF: ("ERRnosupport", "Function not supported.")
}
# Error clases
ERRDOS = 0x1
error_classes = { 0: ("SUCCESS", {}),
ERRDOS: ("ERRDOS", dos_msgs),
0x02: ("ERRSRV",server_msgs),
0x03: ("ERRHRD",hard_msgs),
0x04: ("ERRXOS", {} ),
0xE1: ("ERRRMX1", {} ),
0xE2: ("ERRRMX2", {} ),
0xE3: ("ERRRMX3", {} ),
0xFF: ("ERRCMD", {} ) }
def __init__( self, error_string, error_class, error_code, nt_status = 0, packet=0):
Exception.__init__(self, error_string)
self.nt_status = nt_status
self._args = error_string
if nt_status:
self.error_class = 0
self.error_code = (error_code << 16) + error_class
else:
self.error_class = error_class
self.error_code = error_code
self.packet = packet
def get_error_class( self ):
return self.error_class
def get_error_code( self ):
return self.error_code
def get_error_packet(self):
return self.packet
def __str__( self ):
error_class = SessionError.error_classes.get( self.error_class, None )
if not error_class:
error_code_str = self.error_code
error_class_str = self.error_class
else:
error_class_str = error_class[0]
error_code = error_class[1].get( self.error_code, None )
if not error_code:
error_code_str = self.error_code
else:
error_code_str = '%s(%s)' % error_code
if self.nt_status:
return 'SMB SessionError: %s(%s)' % nt_errors.ERROR_MESSAGES[self.error_code]
else:
# Fall back to the old format
return 'SMB SessionError: class: %s, code: %s' % (error_class_str, error_code_str)
# Raised when an supported feature is present/required in the protocol but is not
# currently supported by pysmb
class UnsupportedFeature(Exception):
pass
# Contains information about a SMB shared device/service
class SharedDevice:
def __init__(self, name, share_type, comment):
self.__name = name
self.__type = share_type
self.__comment = comment
def get_name(self):
return self.__name
def get_type(self):
return self.__type
def get_comment(self):
return self.__comment
def __repr__(self):
return '<SharedDevice instance: name=' + self.__name + ', type=' + str(self.__type) + ', comment="' + self.__comment + '">'
# Contains information about the shared file/directory
class SharedFile:
def __init__(self, ctime, atime, mtime, filesize, allocsize, attribs, shortname, longname):
self.__ctime = ctime
self.__atime = atime
self.__mtime = mtime
self.__filesize = filesize
self.__allocsize = allocsize
self.__attribs = attribs
try:
if isinstance(shortname,bytes):
self.__shortname = shortname[:shortname.index(b'\0')]
else:
self.__shortname = shortname[:shortname.index('\0')]
except (ValueError, TypeError):
self.__shortname = shortname
try:
if isinstance(shortname,bytes):
self.__longname = longname[:longname.index(b'\0')]
else:
self.__longname = longname[:longname.index('\0')]
except (ValueError, TypeError):
self.__longname = longname
def get_ctime(self):
return self.__ctime
def get_ctime_epoch(self):
return self.__convert_smbtime(self.__ctime)
def get_mtime(self):
return self.__mtime
def get_mtime_epoch(self):
return self.__convert_smbtime(self.__mtime)
def get_atime(self):
return self.__atime
def get_atime_epoch(self):
return self.__convert_smbtime(self.__atime)
def get_filesize(self):
return self.__filesize
def get_allocsize(self):
return self.__allocsize
def get_attributes(self):
return self.__attribs
def is_archive(self):
return self.__attribs & ATTR_ARCHIVE
def is_compressed(self):
return self.__attribs & ATTR_COMPRESSED
def is_normal(self):
return self.__attribs & ATTR_NORMAL
def is_hidden(self):
return self.__attribs & ATTR_HIDDEN
def is_readonly(self):
return self.__attribs & ATTR_READONLY
def is_temporary(self):
return self.__attribs & ATTR_TEMPORARY
def is_directory(self):
return self.__attribs & ATTR_DIRECTORY
def is_system(self):
return self.__attribs & ATTR_SYSTEM
def get_shortname(self):
return self.__shortname
def get_longname(self):
return self.__longname
def __repr__(self):
return '<SharedFile instance: shortname="' + self.__shortname + '", longname="' + self.__longname + '", filesize=' + str(self.__filesize) + '>'
@staticmethod
def __convert_smbtime(t):
x = t >> 32
y = t & 0xffffffff
geo_cal_offset = 11644473600.0 # = 369.0 * 365.25 * 24 * 60 * 60 - (3.0 * 24 * 60 * 60 + 6.0 * 60 * 60)
return (x * 4.0 * (1 << 30) + (y & 0xfff00000)) * 1.0e-7 - geo_cal_offset
# Contain information about a SMB machine
class SMBMachine:
def __init__(self, nbname, nbt_type, comment):
self.__nbname = nbname
self.__type = nbt_type
self.__comment = comment
def __repr__(self):
return '<SMBMachine instance: nbname="' + self.__nbname + '", type=' + hex(self.__type) + ', comment="' + self.__comment + '">'
class SMBDomain:
def __init__(self, nbgroup, domain_type, master_browser):
self.__nbgroup = nbgroup
self.__type = domain_type
self.__master_browser = master_browser
def __repr__(self):
return '<SMBDomain instance: nbgroup="' + self.__nbgroup + '", type=' + hex(self.__type) + ', master browser="' + self.__master_browser + '">'
# Represents a SMB Packet
class NewSMBPacket(Structure):
structure = (
('Signature', '"\xffSMB'),
('Command','B=0'),
('ErrorClass','B=0'),
('_reserved','B=0'),
('ErrorCode','<H=0'),
('Flags1','B=0'),
('Flags2','<H=0'),
('PIDHigh','<H=0'),
('SecurityFeatures','8s=""'),
('Reserved','<H=0'),
('Tid','<H=0xffff'),
('Pid','<H=0'),
('Uid','<H=0'),
('Mid','<H=0'),
('Data','*:'),
)
def __init__(self, **kargs):
Structure.__init__(self, **kargs)
if ('Flags2' in self.fields) is False:
self['Flags2'] = 0
if ('Flags1' in self.fields) is False:
self['Flags1'] = 0
if 'data' not in kargs:
self['Data'] = []
def addCommand(self, command):
if len(self['Data']) == 0:
self['Command'] = command.command
else:
self['Data'][-1]['Parameters']['AndXCommand'] = command.command
self['Data'][-1]['Parameters']['AndXOffset'] = len(self)
self['Data'].append(command)
def isMoreData(self):
return (self['Command'] in [SMB.SMB_COM_TRANSACTION, SMB.SMB_COM_READ_ANDX, SMB.SMB_COM_READ_RAW] and
self['ErrorClass'] == 1 and self['ErrorCode'] == SessionError.ERRmoredata)
def isMoreProcessingRequired(self):
return self['ErrorClass'] == 0x16 and self['ErrorCode'] == 0xc000
def isValidAnswer(self, cmd):
# this was inside a loop reading more from the net (with recv_packet(None))
if self['Command'] == cmd:
if (self['ErrorClass'] == 0x00 and self['ErrorCode'] == 0x00):
return 1
elif self.isMoreData():
return 1
elif self.isMoreProcessingRequired():
return 1
raise SessionError("SMB Library Error", self['ErrorClass'] + (self['_reserved'] << 8), self['ErrorCode'], self['Flags2'] & SMB.FLAGS2_NT_STATUS, self)
else:
raise UnsupportedFeature("Unexpected answer from server: Got %d, Expected %d" % (self['Command'], cmd))
class SMBCommand(Structure):
structure = (
('WordCount', 'B=len(Parameters)//2'),
('_ParametersLength','_-Parameters','WordCount*2'),
('Parameters',':'), # default set by constructor
('ByteCount','<H-Data'),
('Data',':'), # default set by constructor
)
def __init__(self, commandOrData = None, data = None, **kargs):
if type(commandOrData) == type(0):
self.command = commandOrData
else:
data = data or commandOrData
Structure.__init__(self, data = data, **kargs)
if data is None:
self['Parameters'] = ''
self['Data'] = ''
class AsciiOrUnicodeStructure(Structure):
UnicodeStructure = ()
AsciiStructure = ()
def __init__(self, flags = 0, **kargs):
if flags & SMB.FLAGS2_UNICODE:
self.structure = self.UnicodeStructure
else:
self.structure = self.AsciiStructure
Structure.__init__(self, **kargs)
class SMBCommand_Parameters(Structure):
pass
class SMBAndXCommand_Parameters(Structure):
commonHdr = (
('AndXCommand','B=0xff'),
('_reserved','B=0'),
('AndXOffset','<H=0'),
)
structure = ( # default structure, overridden by subclasses
('Data',':=""'),
)
############# TRANSACTIONS RELATED
# TRANS2_QUERY_FS_INFORMATION
# QUERY_FS Information Levels
# SMB_QUERY_FS_ATTRIBUTE_INFO
class SMBQueryFsAttributeInfo(Structure):
structure = (
('FileSystemAttributes','<L'),
('MaxFilenNameLengthInBytes','<L'),
('LengthOfFileSystemName','<L-FileSystemName'),
('FileSystemName',':'),
)
class SMBQueryFsInfoVolume(AsciiOrUnicodeStructure):
commonHdr = (
('ulVolSerialNbr','<L=0xABCDEFAA'),
('cCharCount','<B-VolumeLabel'),
)
AsciiStructure = (
('VolumeLabel','z'),
)
UnicodeStructure = (
('VolumeLabel','u'),
)
# FILE_FS_SIZE_INFORMATION
class FileFsSizeInformation(Structure):
structure = (
('TotalAllocationUnits','<q=148529400'),
('AvailableAllocationUnits','<q=14851044'),
('SectorsPerAllocationUnit','<L=2'),
('BytesPerSector','<L=512'),
)
# SMB_QUERY_FS_SIZE_INFO
class SMBQueryFsSizeInfo(Structure):
structure = (
('TotalAllocationUnits','<q=148529400'),
('TotalFreeAllocationUnits','<q=14851044'),
('SectorsPerAllocationUnit','<L=2'),
('BytesPerSector','<L=512'),
)
# FILE_FS_FULL_SIZE_INFORMATION
class SMBFileFsFullSizeInformation(Structure):
structure = (
('TotalAllocationUnits','<q=148529400'),
('CallerAvailableAllocationUnits','<q=148529400'),
('ActualAvailableAllocationUnits','<q=148529400'),
('SectorsPerAllocationUnit','<L=15'),
('BytesPerSector','<L=512')
)
# SMB_QUERY_FS_VOLUME_INFO
class SMBQueryFsVolumeInfo(Structure):
structure = (
('VolumeCreationTime','<q'),
('SerialNumber','<L=0xABCDEFAA'),
('VolumeLabelSize','<L=len(VolumeLabel)'),
('Reserved','<H=0x10'),
('VolumeLabel',':')
)
# SMB_FIND_FILE_BOTH_DIRECTORY_INFO level
class SMBFindFileBothDirectoryInfo(AsciiOrUnicodeStructure):
commonHdr = (
('NextEntryOffset','<L=0'),
('FileIndex','<L=0'),
('CreationTime','<q'),
('LastAccessTime','<q'),
('LastWriteTime','<q'),
('LastChangeTime','<q'),
('EndOfFile','<q=0'),
('AllocationSize','<q=0'),
('ExtFileAttributes','<L=0'),
)
AsciiStructure = (
('FileNameLength','<L-FileName','len(FileName)'),
('EaSize','<L=0'),
('ShortNameLength','<B=0'),
('Reserved','<B=0'),
('ShortName','24s'),
('FileName',':'),
)
UnicodeStructure = (
('FileNameLength','<L-FileName','len(FileName)*2'),
('EaSize','<L=0'),
('ShortNameLength','<B=0'),
('Reserved','<B=0'),
('ShortName','24s'),
('FileName',':'),
)
# SMB_FIND_FILE_ID_FULL_DIRECTORY_INFO level
class SMBFindFileIdFullDirectoryInfo(AsciiOrUnicodeStructure):
commonHdr = (
('NextEntryOffset','<L=0'),
('FileIndex','<L=0'),
('CreationTime','<q'),
('LastAccessTime','<q'),
('LastWriteTime','<q'),
('LastChangeTime','<q'),
('EndOfFile','<q=0'),
('AllocationSize','<q=0'),
('ExtFileAttributes','<L=0'),
)
AsciiStructure = (
('FileNameLength','<L-FileName','len(FileName)'),
('EaSize','<L=0'),
('FileID','<q=0'),
('FileName',':'),
)
UnicodeStructure = (
('FileNameLength','<L-FileName','len(FileName)*2'),
('EaSize','<L=0'),
('FileID','<q=0'),
('FileName',':'),
)
# SMB_FIND_FILE_ID_BOTH_DIRECTORY_INFO level
class SMBFindFileIdBothDirectoryInfo(AsciiOrUnicodeStructure):
commonHdr = (
('NextEntryOffset','<L=0'),
('FileIndex','<L=0'),
('CreationTime','<q'),
('LastAccessTime','<q'),
('LastWriteTime','<q'),
('LastChangeTime','<q'),
('EndOfFile','<q=0'),
('AllocationSize','<q=0'),
('ExtFileAttributes','<L=0'),
)
AsciiStructure = (
('FileNameLength','<L-FileName','len(FileName)'),
('EaSize','<L=0'),
('ShortNameLength','<B=0'),
('Reserved','<B=0'),
('ShortName','24s'),
('Reserved','<H=0'),
('FileID','<q=0'),
('FileName','z'),
)
UnicodeStructure = (
('FileNameLength','<L-FileName','len(FileName)*2'),
('EaSize','<L=0'),
('ShortNameLength','<B=0'),
('Reserved','<B=0'),
('ShortName','24s'),
('Reserved','<H=0'),
('FileID','<q=0'),
('FileName',':'),
)
# SMB_FIND_FILE_DIRECTORY_INFO level
class SMBFindFileDirectoryInfo(AsciiOrUnicodeStructure):
commonHdr = (
('NextEntryOffset','<L=0'),
('FileIndex','<L=0'),
('CreationTime','<q'),
('LastAccessTime','<q'),
('LastWriteTime','<q'),
('LastChangeTime','<q'),
('EndOfFile','<q=0'),
('AllocationSize','<q=1'),
('ExtFileAttributes','<L=0'),
)
AsciiStructure = (
('FileNameLength','<L-FileName','len(FileName)'),
('FileName','z'),
)
UnicodeStructure = (
('FileNameLength','<L-FileName','len(FileName)*2'),
('FileName',':'),
)
# SMB_FIND_FILE_NAMES_INFO level
class SMBFindFileNamesInfo(AsciiOrUnicodeStructure):
commonHdr = (
('NextEntryOffset','<L=0'),
('FileIndex','<L=0'),
)
AsciiStructure = (
('FileNameLength','<L-FileName','len(FileName)'),
('FileName','z'),
)
UnicodeStructure = (
('FileNameLength','<L-FileName','len(FileName)*2'),
('FileName',':'),
)
# SMB_FIND_FILE_FULL_DIRECTORY_INFO level
class SMBFindFileFullDirectoryInfo(AsciiOrUnicodeStructure):
commonHdr = (
('NextEntryOffset','<L=0'),
('FileIndex','<L=0'),
('CreationTime','<q'),
('LastAccessTime','<q'),
('LastWriteTime','<q'),
('LastChangeTime','<q'),
('EndOfFile','<q=0'),
('AllocationSize','<q=1'),
('ExtFileAttributes','<L=0'),
)
AsciiStructure = (
('FileNameLength','<L-FileName','len(FileName)'),
('EaSize','<L'),
('FileName','z'),
)
UnicodeStructure = (
('FileNameLength','<L-FileName','len(FileName)*2'),
('EaSize','<L'),
('FileName',':'),
)
# SMB_FIND_INFO_STANDARD level
class SMBFindInfoStandard(AsciiOrUnicodeStructure):
commonHdr = (
('ResumeKey','<L=0xff'),
('CreationDate','<H=0'),
('CreationTime','<H=0'),
('LastAccessDate','<H=0'),
('LastAccessTime','<H=0'),
('LastWriteDate','<H=0'),
('LastWriteTime','<H=0'),
('EaSize','<L'),
('AllocationSize','<L=1'),
('ExtFileAttributes','<H=0'),
)
AsciiStructure = (
('FileNameLength','<B-FileName','len(FileName)'),
('FileName','z'),
)
UnicodeStructure = (
('FileNameLength','<B-FileName','len(FileName)*2'),
('FileName',':'),
)
# SET_FILE_INFORMATION structures
# SMB_SET_FILE_DISPOSITION_INFO