Class: Rex::Proto::SunRPC::Client

Inherits:
Object
  • Object
show all
Defined in:
lib/rex/proto/sunrpc/client.rb

Overview

XXX: CPORT!

Constant Summary collapse

AUTH_NULL = 
0
AUTH_UNIX = 
1
PMAP_PROG = 
100000
PMAP_VERS = 
2
PMAP_GETPORT = 
3
CALL = 
0

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(opts) ⇒ Client

Returns a new instance of Client.



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# File 'lib/rex/proto/sunrpc/client.rb', line 35

def initialize(opts)
	self.rhost   = opts[:rhost]
	self.rport   = opts[:rport]
	self.program = opts[:program]
	self.version = opts[:version]
	self.timeout = opts[:timeout] || 20
	self.context = opts[:context] || {}
	self.proto   = opts[:proto]

	if self.proto.downcase !~ /^(tcp|udp)$/
		raise ::Rex::ArgumentError, 'Protocol is not "tcp" or "udp"'
	end

	@pport = nil

	@auth_type = AUTH_NULL
	@auth_data = ''

	@call_sock = nil
end

Instance Attribute Details

#call_sock ⇒ Object

Returns the value of attribute call_sock.



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# File 'lib/rex/proto/sunrpc/client.rb', line 31

def call_sock
  @call_sock
end

#context ⇒ Object

Returns the value of attribute context.



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# File 'lib/rex/proto/sunrpc/client.rb', line 31

def context
  @context
end

#pport ⇒ Object

Returns the value of attribute pport.



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# File 'lib/rex/proto/sunrpc/client.rb', line 31

def pport
  @pport
end

#program ⇒ Object

Returns the value of attribute program.



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# File 'lib/rex/proto/sunrpc/client.rb', line 30

def program
  @program
end

#proto ⇒ Object

Returns the value of attribute proto.



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# File 'lib/rex/proto/sunrpc/client.rb', line 30

def proto
  @proto
end

#rhost ⇒ Object

Returns the value of attribute rhost.



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# File 'lib/rex/proto/sunrpc/client.rb', line 30

def rhost
  @rhost
end

#rport ⇒ Object

Returns the value of attribute rport.



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# File 'lib/rex/proto/sunrpc/client.rb', line 30

def rport
  @rport
end

#should_fragment ⇒ Object

Returns the value of attribute should_fragment.



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# File 'lib/rex/proto/sunrpc/client.rb', line 33

def should_fragment
  @should_fragment
end

#timeout ⇒ Object

Returns the value of attribute timeout.



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# File 'lib/rex/proto/sunrpc/client.rb', line 31

def timeout
  @timeout
end

#version ⇒ Object

Returns the value of attribute version.



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# File 'lib/rex/proto/sunrpc/client.rb', line 30

def version
  @version
end

Instance Method Details

#authnull_create ⇒ Object 



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# File 'lib/rex/proto/sunrpc/client.rb', line 97

def authnull_create
	@auth_type = AUTH_NULL
	@auth_data = ''
end

#authunix_create(host, uid, gid, groupz) ⇒ Object

Raises:



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# File 'lib/rex/proto/sunrpc/client.rb', line 102

def authunix_create(host, uid, gid, groupz)
	raise ::Rex::ArgumentError, 'Hostname length is too long' if host.length > 255
# 10?
	raise ::Rex::ArgumentError, 'Too many groups' if groupz.length > 10

	@auth_type = AUTH_UNIX
	@auth_data =
		Rex::Encoder::XDR.encode(0, host, uid, gid, groupz) # XXX: TIME! GROUPZ?!
end

#call(procedure, buffer, maxwait = self.timeout) ⇒ Object 



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# File 'lib/rex/proto/sunrpc/client.rb', line 78

def call(procedure, buffer, maxwait = self.timeout)
	buf =
		Rex::Encoder::XDR.encode(CALL, 2, @program, @version, procedure,
			@auth_type, [@auth_data, 400], AUTH_NULL, '')+
		buffer

	if ! @call_sock
		@call_sock = make_rpc(@proto, @rhost, @pport)
	end

	send_rpc(@call_sock, buf)
	recv_rpc(@call_sock, maxwait)
end

#create ⇒ Object

XXX: Add optional parameter to have proto be something else



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# File 'lib/rex/proto/sunrpc/client.rb', line 57

def create()
	proto_num = 0
	if @proto.eql?('tcp')
		proto_num = 6
	elsif @proto.eql?('udp')
		proto_num = 17
	end

	buf =
		Rex::Encoder::XDR.encode(CALL, 2, PMAP_PROG, PMAP_VERS, PMAP_GETPORT,
			@auth_type, [@auth_data, 400], AUTH_NULL, '',
			@program, @version, proto_num, 0)

	sock = make_rpc(@proto, @rhost, @rport)
	send_rpc(sock, buf)
	ret = recv_rpc(sock)
	close_rpc(sock)

	return ret
end

#destroy ⇒ Object 



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# File 'lib/rex/proto/sunrpc/client.rb', line 92

def destroy
	close_rpc(@call_sock) if @call_sock
	@call_sock = nil
end

#portmap_req(host, port, rpc_vers, procedure, buffer) ⇒ Object

XXX: Dirty, integrate some sort of request system into create/call?



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# File 'lib/rex/proto/sunrpc/client.rb', line 113

def portmap_req(host, port, rpc_vers, procedure, buffer)
	buf = Rex::Encoder::XDR.encode(CALL, 2, PMAP_PROG, rpc_vers, procedure,
		AUTH_NULL, '', AUTH_NULL, '') + buffer

	sock = make_rpc('tcp', host, port)
	send_rpc(sock, buf)
	ret = recv_rpc(sock)
	close_rpc(sock)

	return ret
end