Class: RubySMB::SMB1::Tree

Inherits:
Object
  • Object
show all
Defined in:
lib/ruby_smb/smb1/tree.rb

Overview

An SMB1 connected remote Tree, as returned by a [RubySMB::SMB1::Packet::TreeConnectRequest]

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(client:, share:, response:) ⇒ Tree

Returns a new instance of Tree.



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# File 'lib/ruby_smb/smb1/tree.rb', line 31

def initialize(client:, share:, response:)
  @client             = client
  @share              = share
  @id                 = response.smb_header.tid
  @guest_permissions  = response.parameter_block.guest_access_rights
  @permissions        = response.parameter_block.access_rights
end

Instance Attribute Details

#client ⇒ RubySMB::Client

Returns:



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# File 'lib/ruby_smb/smb1/tree.rb', line 9

def client
  @client
end

#guest_permissions ⇒ RubySMB::SMB1::BitField::DirectoryAccessMask

Returns:



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# File 'lib/ruby_smb/smb1/tree.rb', line 14

def guest_permissions
  @guest_permissions
end

#id ⇒ Integer

Returns:

  • (Integer) 


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# File 'lib/ruby_smb/smb1/tree.rb', line 29

def id
  @id
end

#permissions ⇒ RubySMB::SMB1::BitField::DirectoryAccessMask

Returns:



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# File 'lib/ruby_smb/smb1/tree.rb', line 19

def permissions
  @permissions
end

#share ⇒ String

Returns:

  • (String) 


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# File 'lib/ruby_smb/smb1/tree.rb', line 24

def share
  @share
end

Instance Method Details

#disconnect! ⇒ WindowsError::ErrorCode

Disconnects this Tree from the current session

Returns:

  • (WindowsError::ErrorCode) —

    the NTStatus sent back by the server.



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# File 'lib/ruby_smb/smb1/tree.rb', line 42

def disconnect!
  request = RubySMB::SMB1::Packet::TreeDisconnectRequest.new
  request = set_header_fields(request)
  raw_response = client.send_recv(request)
  response = RubySMB::SMB1::Packet::TreeDisconnectResponse.read(raw_response)
  response.status_code
end

#list(directory: '\\', pattern: '*', unicode: true, type: RubySMB::SMB1::Packet::Trans2::FindInformationLevel::FindFileFullDirectoryInfo) ⇒ Array

List directory on the remote share.

Examples:

tree = client.tree_connect("\\\\192.168.99.134\\Share")
tree.list(directory: "path\\to\\directory")

Parameters:

  • directory (String) (defaults to: '\\') —

    path to the directory to be listed

  • pattern (String) (defaults to: '*') —

    search pattern

  • type (Class) (defaults to: RubySMB::SMB1::Packet::Trans2::FindInformationLevel::FindFileFullDirectoryInfo) —

    file information class

Returns:

  • (Array) —

    array of directory structures



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# File 'lib/ruby_smb/smb1/tree.rb', line 143

def list(directory: '\\', pattern: '*', unicode: true,
         type: RubySMB::SMB1::Packet::Trans2::FindInformationLevel::FindFileFullDirectoryInfo)
  find_first_request = RubySMB::SMB1::Packet::Trans2::FindFirst2Request.new
  find_first_request = set_header_fields(find_first_request)
  find_first_request.smb_header.flags2.unicode  = 1 if unicode

  search_path = directory.dup
  search_path << '\\' unless search_path.end_with?('\\')
  search_path << pattern
  search_path = '\\' + search_path unless search_path.start_with?('\\')

  # Set the search parameters
  t2_params = find_first_request.data_block.trans2_parameters
  t2_params.search_attributes.hidden    = 1
  t2_params.search_attributes.system    = 1
  t2_params.search_attributes.directory = 1
  t2_params.flags.close_eos             = 1
  t2_params.flags.resume_keys           = 0
  t2_params.information_level           = type::CLASS_LEVEL
  t2_params.filename                    = search_path
  t2_params.search_count                = 10

  find_first_request = set_find_params(find_first_request)

  raw_response  = client.send_recv(find_first_request)
  response      = RubySMB::SMB1::Packet::Trans2::FindFirst2Response.read(raw_response)

  results = response.results(type, unicode: unicode)

  eos   = response.data_block.trans2_parameters.eos
  sid   = response.data_block.trans2_parameters.sid
  last  = results.last.file_name

  while eos.zero?
    find_next_request = RubySMB::SMB1::Packet::Trans2::FindNext2Request.new
    find_next_request = set_header_fields(find_next_request)
    find_next_request.smb_header.flags2.unicode   = 1 if unicode

    t2_params                             = find_next_request.data_block.trans2_parameters
    t2_params.sid                         = sid
    t2_params.flags.close_eos             = 1
    t2_params.flags.resume_keys           = 0
    t2_params.information_level           = type::CLASS_LEVEL
    t2_params.filename                    = last
    t2_params.search_count                = 10

    find_next_request = set_find_params(find_next_request)

    raw_response  = client.send_recv(find_next_request)
    response      = RubySMB::SMB1::Packet::Trans2::FindNext2Response.read(raw_response)

    results += response.results(type, unicode: unicode)

    eos   = response.data_block.trans2_parameters.eos
    last  = results.last.file_name
  end

  results
end

#open_file(filename:, flags: nil, options: nil, disposition: RubySMB::Dispositions::FILE_OPEN, impersonation: RubySMB::ImpersonationLevels::SEC_IMPERSONATE, read: true, write: false, delete: false) ⇒ RubySMB::SMB1::File

Open a file on the remote share.

Examples:

tree = client.tree_connect("\\\\192.168.99.134\\Share")
tree.open_file(filename: "myfile")

Parameters:

  • filename (String) —

    name of the file to be opened

  • flags (BinData::Struct, Hash) (defaults to: nil) —

    flags to setup the request (see Packet::NtCreateAndxRequest)

  • options (RubySMB::SMB1::BitField::CreateOptions, Hash) (defaults to: nil) —

    flags that defines how the file should be created

  • disposition (Integer) (defaults to: RubySMB::Dispositions::FILE_OPEN) —

    32-bit field that defines how an already-existing file or a new file needs to be handled (constants are defined in Dispositions)

  • impersonation (Integer) (defaults to: RubySMB::ImpersonationLevels::SEC_IMPERSONATE) —

    32-bit field that defines the impersonation level (constants are defined in ImpersonationLevels)

  • read (TrueClass, FalseClass) (defaults to: true) —

    request a read access

  • write (TrueClass, FalseClass) (defaults to: false) —

    request a write access

  • delete (TrueClass, FalseClass) (defaults to: false) —

    request a delete access

Returns:

Raises:



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# File 'lib/ruby_smb/smb1/tree.rb', line 67

def open_file(filename:, flags: nil, options: nil, disposition: RubySMB::Dispositions::FILE_OPEN,
              impersonation: RubySMB::ImpersonationLevels::SEC_IMPERSONATE, read: true, write: false, delete: false)
  nt_create_andx_request = RubySMB::SMB1::Packet::NtCreateAndxRequest.new
  nt_create_andx_request = set_header_fields(nt_create_andx_request)

  nt_create_andx_request.parameter_block.ext_file_attributes.normal = 1

  if flags
    nt_create_andx_request.parameter_block.flags = flags
  else
    nt_create_andx_request.parameter_block.flags.request_extended_response = 1
  end

  if options
    nt_create_andx_request.parameter_block.create_options = options
  else
    nt_create_andx_request.parameter_block.create_options.directory_file     = 0
    nt_create_andx_request.parameter_block.create_options.non_directory_file = 1
  end

  if read
    nt_create_andx_request.parameter_block.share_access.share_read     = 1
    nt_create_andx_request.parameter_block.desired_access.read_data    = 1
    nt_create_andx_request.parameter_block.desired_access.read_ea      = 1
    nt_create_andx_request.parameter_block.desired_access.read_attr    = 1
    nt_create_andx_request.parameter_block.desired_access.read_control = 1
  end

  if write
    nt_create_andx_request.parameter_block.share_access.share_write   = 1
    nt_create_andx_request.parameter_block.desired_access.write_data  = 1
    nt_create_andx_request.parameter_block.desired_access.append_data = 1
    nt_create_andx_request.parameter_block.desired_access.write_ea    = 1
    nt_create_andx_request.parameter_block.desired_access.write_attr  = 1
  end

  if delete
    nt_create_andx_request.parameter_block.share_access.share_delete    = 1
    nt_create_andx_request.parameter_block.desired_access.delete_access = 1
  end

  nt_create_andx_request.parameter_block.impersonation_level = impersonation
  nt_create_andx_request.parameter_block.create_disposition  = disposition

  unicode_enabled = nt_create_andx_request.smb_header.flags2.unicode == 1
  nt_create_andx_request.data_block.file_name = add_null_termination(str: filename, unicode: unicode_enabled)

  raw_response = @client.send_recv(nt_create_andx_request)
  response = RubySMB::SMB1::Packet::NtCreateAndxResponse.read(raw_response)
  unless response.smb_header.command == RubySMB::SMB1::Commands::SMB_COM_NT_CREATE_ANDX
    raise RubySMB::Error::InvalidPacket, 'Not a NtCreateAndxResponse packet'
  end
  unless response.status_code == WindowsError::NTStatus::STATUS_SUCCESS
    raise RubySMB::Error::UnexpectedStatusCode, response.status_code.name
  end

  case response.parameter_block.resource_type 
  when RubySMB::SMB1::ResourceType::BYTE_MODE_PIPE, RubySMB::SMB1::ResourceType::MESSAGE_MODE_PIPE
    RubySMB::SMB1::Pipe.new(name: filename, tree: self, response: response)
  when RubySMB::SMB1::ResourceType::DISK
    RubySMB::SMB1::File.new(name: filename, tree: self, response: response)
  else
    raise RubySMB::Error::RubySMBError
  end
end

#set_header_fields(request) ⇒ RubySMB::SMB::Packet

Sets a few preset header fields that will always be set the same way for Tree operations. This is, the TreeID and Extended Attributes.

Parameters:

  • the (RubySMB::SMB::Packet) —

    request packet to modify

Returns:

  • (RubySMB::SMB::Packet) —

    the modified packet.



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# File 'lib/ruby_smb/smb1/tree.rb', line 208

def set_header_fields(request)
  request.smb_header.tid        = @id
  request.smb_header.flags2.eas = 1
  request
end