libfreerdp/core/gateway/rpc.h File Reference

#include <winpr/wtypes.h>
#include <winpr/stream.h>
#include <winpr/collections.h>
#include <winpr/interlocked.h>
#include <freerdp/log.h>
#include <freerdp/utils/ringbuffer.h>
#include "../tcp.h"
#include "../transport.h"
#include "http.h"
#include "../credssp_auth.h"
#include <time.h>
#include <winpr/sspi.h>
#include <freerdp/types.h>
#include <freerdp/settings.h>
#include <freerdp/crypto/tls.h>
#include <freerdp/crypto/crypto.h>
#include <freerdp/api.h>
#include <winpr/print.h>

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Data Structures
struct	rpcconn_common_hdr_t
struct	rpcconn_rts_hdr_t
struct	RPC_PDU
struct	p_uuid_t
struct	ndr_format_t
struct	ndr_context_handle
struct	p_syntax_id_t
struct	p_cont_elem_t
struct	p_cont_list_t
struct	p_result_t
struct	p_result_list_t
struct	version_t
struct	p_rt_versions_supported_t
struct	port_any_t
struct	rpcrt_optional_data_t
struct	rpcconn_reject_optional_data_t
struct	rpcconn_disc_optional_data_t
struct	rpc_sec_verification_trailer
struct	auth_verifier_co_t
struct	rpcconn_alter_context_hdr_t
struct	rpcconn_alter_context_response_hdr_t
struct	rpcconn_bind_hdr_t
struct	rpcconn_bind_ack_hdr_t
struct	rpcconn_rpc_auth_3_hdr_t
struct	rpcconn_bind_nak_hdr_t
struct	rpcconn_cancel_hdr_t
struct	RPC_FAULT_CODE
struct	rpcconn_fault_hdr_t
struct	rpcconn_orphaned_hdr_t
struct	rpcconn_request_hdr_t
struct	rpcconn_response_hdr_t
struct	rpcconn_shutdown_hdr_t
union	rpcconn_hdr_t
struct	RPC_SECURITY_PROVIDER_INFO
struct	RpcClientCall
struct	RpcClient
struct	RpcChannel
struct	RpcPingOriginator
struct	RpcInChannel
struct	RpcOutChannel
struct	RpcVirtualConnection
struct	RpcVirtualConnectionCookieEntry
struct	rdpRpc

Macros
#define	RPC_COMMON_FIELDS_LENGTH   sizeof(rpcconn_common_hdr_t)
#define	RTS_PDU_HEADER_LENGTH   20
#define	RPC_PDU_FLAG_STUB   0x00000001
#define	PTYPE_REQUEST   0x00
#define	PTYPE_PING   0x01
#define	PTYPE_RESPONSE   0x02
#define	PTYPE_FAULT   0x03
#define	PTYPE_WORKING   0x04
#define	PTYPE_NOCALL   0x05
#define	PTYPE_REJECT   0x06
#define	PTYPE_ACK   0x07
#define	PTYPE_CL_CANCEL   0x08
#define	PTYPE_FACK   0x09
#define	PTYPE_CANCEL_ACK   0x0A
#define	PTYPE_BIND   0x0B
#define	PTYPE_BIND_ACK   0x0C
#define	PTYPE_BIND_NAK   0x0D
#define	PTYPE_ALTER_CONTEXT   0x0E
#define	PTYPE_ALTER_CONTEXT_RESP   0x0F
#define	PTYPE_RPC_AUTH_3   0x10
#define	PTYPE_SHUTDOWN   0x11
#define	PTYPE_CO_CANCEL   0x12
#define	PTYPE_ORPHANED   0x13
#define	PTYPE_RTS   0x14
#define	PFC_FIRST_FRAG   0x01
#define	PFC_LAST_FRAG   0x02
#define	PFC_PENDING_CANCEL   0x04
#define	PFC_SUPPORT_HEADER_SIGN   0x04
#define	PFC_RESERVED_1   0x08
#define	PFC_CONC_MPX   0x10
#define	PFC_DID_NOT_EXECUTE   0x20
#define	PFC_MAYBE   0x40
#define	PFC_OBJECT_UUID   0x80
#define	RPC_CO_MUST_RECV_FRAG_SIZE   1432
#define	RPC_CL_MUST_RECV_FRAG_SIZE   1464
#define	RPC_PDU_HEADER_MAX_LENGTH   32
#define	ndr_c_int_big_endian   0
#define	ndr_c_int_little_endian   1
#define	ndr_c_float_ieee   0
#define	ndr_c_float_vax   1
#define	ndr_c_float_cray   2
#define	ndr_c_float_ibm   3
#define	ndr_c_char_ascii   0
#define	ndr_c_char_ebcdic   1
#define	REASON_NOT_SPECIFIED   0
#define	TEMPORARY_CONGESTION   1
#define	LOCAL_LIMIT_EXCEEDED   2
#define	CALLED_PADDR_UNKNOWN   3
#define	PROTOCOL_VERSION_NOT_SUPPORTED   4
#define	DEFAULT_CONTEXT_NOT_SUPPORTED   5
#define	USER_DATA_NOT_READABLE   6
#define	NO_PSAP_AVAILABLE   7
#define	DEFINE_RPC_FAULT_CODE(_code, cat)
#define	nca_s_comm_failure   0x1C010001
#define	nca_s_op_rng_error   0x1C010002
#define	nca_s_unk_if   0x1C010003
#define	nca_s_wrong_boot_time   0x1C010006
#define	nca_s_you_crashed   0x1C010009
#define	nca_s_proto_error   0x1C01000B
#define	nca_s_out_args_too_big   0x1C010013
#define	nca_s_server_too_busy   0x1C010014
#define	nca_s_fault_string_too_long   0x1C010015
#define	nca_s_unsupported_type   0x1C010017
#define	nca_s_fault_int_div_by_zero   0x1C000001
#define	nca_s_fault_addr_error   0x1C000002
#define	nca_s_fault_fp_div_zero   0x1C000003
#define	nca_s_fault_fp_underflow   0x1C000004
#define	nca_s_fault_fp_overflow   0x1C000005
#define	nca_s_fault_invalid_tag   0x1C000006
#define	nca_s_fault_invalid_bound   0x1C000007
#define	nca_s_rpc_version_mismatch   0x1C000008
#define	nca_s_unspec_reject   0x1C000009
#define	nca_s_bad_actid   0x1C00000A
#define	nca_s_who_are_you_failed   0x1C00000B
#define	nca_s_manager_not_entered   0x1C00000C
#define	nca_s_fault_cancel   0x1C00000D
#define	nca_s_fault_ill_inst   0x1C00000E
#define	nca_s_fault_fp_error   0x1C00000F
#define	nca_s_fault_int_overflow   0x1C000010
#define	nca_s_fault_unspec   0x1C000012
#define	nca_s_fault_remote_comm_failure   0x1C000013
#define	nca_s_fault_pipe_empty   0x1C000014
#define	nca_s_fault_pipe_closed   0x1C000015
#define	nca_s_fault_pipe_order   0x1C000016
#define	nca_s_fault_pipe_discipline   0x1C000017
#define	nca_s_fault_pipe_comm_error   0x1C000018
#define	nca_s_fault_pipe_memory   0x1C000019
#define	nca_s_fault_context_mismatch   0x1C00001A
#define	nca_s_fault_remote_no_memory   0x1C00001B
#define	nca_s_invalid_pres_context_id   0x1C00001C
#define	nca_s_unsupported_authn_level   0x1C00001D
#define	nca_s_invalid_checksum   0x1C00001F
#define	nca_s_invalid_crc   0x1C000020
#define	nca_s_fault_user_defined   0x1C000021
#define	nca_s_fault_tx_open_failed   0x1C000022
#define	nca_s_fault_codeset_conv_error   0x1C000023
#define	nca_s_fault_object_not_found   0x1C000024
#define	nca_s_fault_no_client_stub   0x1C000025
#define	RPC_UUID_FORMAT_STRING    "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x"
#define	RPC_UUID_FORMAT_ARGUMENTS(_rpc_uuid)

Typedefs
typedef struct RPC_PDU *	PRPC_PDU
typedef UINT16	p_context_id_t
typedef UINT16	p_reject_reason_t
typedef struct ndr_format_t *	ndr_format_p_t
typedef version_t	p_rt_version_t
typedef UINT16	rpcrt_reason_code_t

Enumerations
enum	p_cont_def_result_t { acceptance , user_rejection , provider_rejection }
enum	p_provider_reason_t { reason_not_specified , abstract_syntax_not_supported , proposed_transfer_syntaxes_not_supported , local_limit_exceeded }
enum	RPC_CLIENT_STATE {   RPC_CLIENT_STATE_INITIAL , RPC_CLIENT_STATE_ESTABLISHED , RPC_CLIENT_STATE_WAIT_SECURE_BIND_ACK , RPC_CLIENT_STATE_WAIT_UNSECURE_BIND_ACK ,   RPC_CLIENT_STATE_WAIT_SECURE_ALTER_CONTEXT_RESPONSE , RPC_CLIENT_STATE_CONTEXT_NEGOTIATED , RPC_CLIENT_STATE_WAIT_RESPONSE , RPC_CLIENT_STATE_FINAL }
enum	RPC_CLIENT_CALL_STATE {   RPC_CLIENT_CALL_STATE_INITIAL , RPC_CLIENT_CALL_STATE_SEND_PDUS , RPC_CLIENT_CALL_STATE_DISPATCHED , RPC_CLIENT_CALL_STATE_RECEIVE_PDU ,   RPC_CLIENT_CALL_STATE_COMPLETE , RPC_CLIENT_CALL_STATE_FAULT , RPC_CLIENT_CALL_STATE_FINAL }
enum	CLIENT_IN_CHANNEL_STATE {   CLIENT_IN_CHANNEL_STATE_INITIAL , CLIENT_IN_CHANNEL_STATE_CONNECTED , CLIENT_IN_CHANNEL_STATE_SECURITY , CLIENT_IN_CHANNEL_STATE_NEGOTIATED ,   CLIENT_IN_CHANNEL_STATE_OPENED , CLIENT_IN_CHANNEL_STATE_OPENED_A4W , CLIENT_IN_CHANNEL_STATE_FINAL }
enum	CLIENT_OUT_CHANNEL_STATE {   CLIENT_OUT_CHANNEL_STATE_INITIAL , CLIENT_OUT_CHANNEL_STATE_CONNECTED , CLIENT_OUT_CHANNEL_STATE_SECURITY , CLIENT_OUT_CHANNEL_STATE_NEGOTIATED ,   CLIENT_OUT_CHANNEL_STATE_OPENED , CLIENT_OUT_CHANNEL_STATE_OPENED_A6W , CLIENT_OUT_CHANNEL_STATE_OPENED_A10W , CLIENT_OUT_CHANNEL_STATE_OPENED_B3W ,   CLIENT_OUT_CHANNEL_STATE_RECYCLED , CLIENT_OUT_CHANNEL_STATE_FINAL }
enum	VIRTUAL_CONNECTION_STATE {   VIRTUAL_CONNECTION_STATE_INITIAL , VIRTUAL_CONNECTION_STATE_OUT_CHANNEL_WAIT , VIRTUAL_CONNECTION_STATE_WAIT_A3W , VIRTUAL_CONNECTION_STATE_WAIT_C2 ,   VIRTUAL_CONNECTION_STATE_OPENED , VIRTUAL_CONNECTION_STATE_FINAL }

Functions
FREERDP_LOCAL void	rpc_pdu_header_print (const rpcconn_hdr_t *header)
FREERDP_LOCAL rpcconn_common_hdr_t	rpc_pdu_header_init (const rdpRpc *rpc)
FREERDP_LOCAL size_t	rpc_offset_align (size_t *offset, size_t alignment)
FREERDP_LOCAL size_t	rpc_offset_pad (size_t *offset, size_t pad)
FREERDP_LOCAL BOOL	rpc_get_stub_data_info (const rpcconn_hdr_t *header, size_t *offset, size_t *length)
FREERDP_LOCAL SSIZE_T	rpc_channel_write (RpcChannel *channel, const BYTE *data, size_t length)
FREERDP_LOCAL SSIZE_T	rpc_channel_read (RpcChannel *channel, wStream *s, size_t length)
FREERDP_LOCAL void	rpc_channel_free (RpcChannel *channel)
FREERDP_LOCAL RpcOutChannel *	rpc_out_channel_new (rdpRpc *rpc)
FREERDP_LOCAL int	rpc_out_channel_replacement_connect (RpcOutChannel *outChannel, int timeout)
FREERDP_LOCAL BOOL	rpc_in_channel_transition_to_state (RpcInChannel *inChannel, CLIENT_IN_CHANNEL_STATE state)
FREERDP_LOCAL BOOL	rpc_out_channel_transition_to_state (RpcOutChannel *outChannel, CLIENT_OUT_CHANNEL_STATE state)
FREERDP_LOCAL BOOL	rpc_virtual_connection_transition_to_state (rdpRpc *rpc, RpcVirtualConnection *connection, VIRTUAL_CONNECTION_STATE state)
FREERDP_LOCAL BOOL	rpc_connect (rdpRpc *rpc, UINT32 timeout)
FREERDP_LOCAL rdpRpc *	rpc_new (rdpTransport *transport)
FREERDP_LOCAL void	rpc_free (rdpRpc *rpc)

Macro Definition Documentation

CALLED_PADDR_UNKNOWN

#define CALLED_PADDR_UNKNOWN   3

DEFAULT_CONTEXT_NOT_SUPPORTED

#define DEFAULT_CONTEXT_NOT_SUPPORTED   5

DEFINE_RPC_FAULT_CODE

#define DEFINE_RPC_FAULT_CODE	(		_code,
			cat
	)

Value:

        {                                     \
                _code, #_code, cat                \
        }

LOCAL_LIMIT_EXCEEDED

#define LOCAL_LIMIT_EXCEEDED   2

nca_s_bad_actid

#define nca_s_bad_actid   0x1C00000A

nca_s_comm_failure

#define nca_s_comm_failure   0x1C010001

nca_s_fault_addr_error

#define nca_s_fault_addr_error   0x1C000002

nca_s_fault_cancel

#define nca_s_fault_cancel   0x1C00000D

nca_s_fault_codeset_conv_error

#define nca_s_fault_codeset_conv_error   0x1C000023

nca_s_fault_context_mismatch

#define nca_s_fault_context_mismatch   0x1C00001A

nca_s_fault_fp_div_zero

#define nca_s_fault_fp_div_zero   0x1C000003

nca_s_fault_fp_error

#define nca_s_fault_fp_error   0x1C00000F

nca_s_fault_fp_overflow

#define nca_s_fault_fp_overflow   0x1C000005

nca_s_fault_fp_underflow

#define nca_s_fault_fp_underflow   0x1C000004

nca_s_fault_ill_inst

#define nca_s_fault_ill_inst   0x1C00000E

nca_s_fault_int_div_by_zero

#define nca_s_fault_int_div_by_zero   0x1C000001

nca_s_fault_int_overflow

#define nca_s_fault_int_overflow   0x1C000010

nca_s_fault_invalid_bound

#define nca_s_fault_invalid_bound   0x1C000007

nca_s_fault_invalid_tag

#define nca_s_fault_invalid_tag   0x1C000006

nca_s_fault_no_client_stub

#define nca_s_fault_no_client_stub   0x1C000025

nca_s_fault_object_not_found

#define nca_s_fault_object_not_found   0x1C000024

nca_s_fault_pipe_closed

#define nca_s_fault_pipe_closed   0x1C000015

nca_s_fault_pipe_comm_error

#define nca_s_fault_pipe_comm_error   0x1C000018

nca_s_fault_pipe_discipline

#define nca_s_fault_pipe_discipline   0x1C000017

nca_s_fault_pipe_empty

#define nca_s_fault_pipe_empty   0x1C000014

nca_s_fault_pipe_memory

#define nca_s_fault_pipe_memory   0x1C000019

nca_s_fault_pipe_order

#define nca_s_fault_pipe_order   0x1C000016

nca_s_fault_remote_comm_failure

#define nca_s_fault_remote_comm_failure   0x1C000013

nca_s_fault_remote_no_memory

#define nca_s_fault_remote_no_memory   0x1C00001B

nca_s_fault_string_too_long

#define nca_s_fault_string_too_long   0x1C010015

nca_s_fault_tx_open_failed

#define nca_s_fault_tx_open_failed   0x1C000022

nca_s_fault_unspec

#define nca_s_fault_unspec   0x1C000012

nca_s_fault_user_defined

#define nca_s_fault_user_defined   0x1C000021

nca_s_invalid_checksum

#define nca_s_invalid_checksum   0x1C00001F

nca_s_invalid_crc

#define nca_s_invalid_crc   0x1C000020

nca_s_invalid_pres_context_id

#define nca_s_invalid_pres_context_id   0x1C00001C

nca_s_manager_not_entered

#define nca_s_manager_not_entered   0x1C00000C

nca_s_op_rng_error

#define nca_s_op_rng_error   0x1C010002

nca_s_out_args_too_big

#define nca_s_out_args_too_big   0x1C010013

nca_s_proto_error

#define nca_s_proto_error   0x1C01000B

nca_s_rpc_version_mismatch

#define nca_s_rpc_version_mismatch   0x1C000008

nca_s_server_too_busy

#define nca_s_server_too_busy   0x1C010014

nca_s_unk_if

#define nca_s_unk_if   0x1C010003

nca_s_unspec_reject

#define nca_s_unspec_reject   0x1C000009

nca_s_unsupported_authn_level

#define nca_s_unsupported_authn_level   0x1C00001D

nca_s_unsupported_type

#define nca_s_unsupported_type   0x1C010017

nca_s_who_are_you_failed

#define nca_s_who_are_you_failed   0x1C00000B

nca_s_wrong_boot_time

#define nca_s_wrong_boot_time   0x1C010006

nca_s_you_crashed

#define nca_s_you_crashed   0x1C010009

ndr_c_char_ascii

#define ndr_c_char_ascii   0

ndr_c_char_ebcdic

#define ndr_c_char_ebcdic   1

ndr_c_float_cray

#define ndr_c_float_cray   2

ndr_c_float_ibm

#define ndr_c_float_ibm   3

ndr_c_float_ieee

#define ndr_c_float_ieee   0

ndr_c_float_vax

#define ndr_c_float_vax   1

ndr_c_int_big_endian

#define ndr_c_int_big_endian   0

ndr_c_int_little_endian

#define ndr_c_int_little_endian   1

NO_PSAP_AVAILABLE

#define NO_PSAP_AVAILABLE   7

PFC_CONC_MPX

#define PFC_CONC_MPX   0x10

PFC_DID_NOT_EXECUTE

#define PFC_DID_NOT_EXECUTE   0x20

PFC_FIRST_FRAG

#define PFC_FIRST_FRAG   0x01

PFC_LAST_FRAG

#define PFC_LAST_FRAG   0x02

PFC_MAYBE

#define PFC_MAYBE   0x40

PFC_OBJECT_UUID

#define PFC_OBJECT_UUID   0x80

PFC_PENDING_CANCEL

#define PFC_PENDING_CANCEL   0x04

PFC_RESERVED_1

#define PFC_RESERVED_1   0x08

PFC_SUPPORT_HEADER_SIGN

#define PFC_SUPPORT_HEADER_SIGN   0x04

PROTOCOL_VERSION_NOT_SUPPORTED

#define PROTOCOL_VERSION_NOT_SUPPORTED   4

PTYPE_ACK

#define PTYPE_ACK   0x07

PTYPE_ALTER_CONTEXT

#define PTYPE_ALTER_CONTEXT   0x0E

PTYPE_ALTER_CONTEXT_RESP

#define PTYPE_ALTER_CONTEXT_RESP   0x0F

PTYPE_BIND

#define PTYPE_BIND   0x0B

PTYPE_BIND_ACK

#define PTYPE_BIND_ACK   0x0C

PTYPE_BIND_NAK

#define PTYPE_BIND_NAK   0x0D

PTYPE_CANCEL_ACK

#define PTYPE_CANCEL_ACK   0x0A

PTYPE_CL_CANCEL

#define PTYPE_CL_CANCEL   0x08

PTYPE_CO_CANCEL

#define PTYPE_CO_CANCEL   0x12

PTYPE_FACK

#define PTYPE_FACK   0x09

PTYPE_FAULT

#define PTYPE_FAULT   0x03

PTYPE_NOCALL

#define PTYPE_NOCALL   0x05

PTYPE_ORPHANED

#define PTYPE_ORPHANED   0x13

PTYPE_PING

#define PTYPE_PING   0x01

PTYPE_REJECT

#define PTYPE_REJECT   0x06

PTYPE_REQUEST

#define PTYPE_REQUEST   0x00

CAE Specification DCE 1.1: Remote Procedure Call Document Number: C706 http://pubs.opengroup.org/onlinepubs/9629399/

PTYPE_RESPONSE

#define PTYPE_RESPONSE   0x02

PTYPE_RPC_AUTH_3

#define PTYPE_RPC_AUTH_3   0x10

PTYPE_RTS

#define PTYPE_RTS   0x14

PTYPE_SHUTDOWN

#define PTYPE_SHUTDOWN   0x11

PTYPE_WORKING

#define PTYPE_WORKING   0x04

REASON_NOT_SPECIFIED

#define REASON_NOT_SPECIFIED   0

RPC_CL_MUST_RECV_FRAG_SIZE

#define RPC_CL_MUST_RECV_FRAG_SIZE   1464

RPC_CO_MUST_RECV_FRAG_SIZE

#define RPC_CO_MUST_RECV_FRAG_SIZE   1432

RPC_COMMON_FIELDS_LENGTH

#define RPC_COMMON_FIELDS_LENGTH   sizeof(rpcconn_common_hdr_t)

RPC_PDU_FLAG_STUB

#define RPC_PDU_FLAG_STUB   0x00000001

RPC_PDU_HEADER_MAX_LENGTH

#define RPC_PDU_HEADER_MAX_LENGTH   32

The PDU maximum header length is enough to contain either the RPC common fields or all fields up to the stub data in PDUs that use it (request, response, fault)

RPC_UUID_FORMAT_ARGUMENTS

#define RPC_UUID_FORMAT_ARGUMENTS

(

_rpc_uuid

)

Value:

        _rpc_uuid[0], _rpc_uuid[1], _rpc_uuid[2], _rpc_uuid[3], _rpc_uuid[4], _rpc_uuid[5],       \
            _rpc_uuid[6], _rpc_uuid[7], _rpc_uuid[8], _rpc_uuid[9], _rpc_uuid[10], _rpc_uuid[11], \
            _rpc_uuid[12], _rpc_uuid[13], _rpc_uuid[14], _rpc_uuid[15]

RPC_UUID_FORMAT_STRING

#define RPC_UUID_FORMAT_STRING    "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x"

RTS_PDU_HEADER_LENGTH

#define RTS_PDU_HEADER_LENGTH   20

TEMPORARY_CONGESTION

#define TEMPORARY_CONGESTION   1

USER_DATA_NOT_READABLE

#define USER_DATA_NOT_READABLE   6

Typedef Documentation

ndr_format_p_t

typedef struct ndr_format_t * ndr_format_p_t

p_context_id_t

typedef UINT16 p_context_id_t

p_reject_reason_t

typedef UINT16 p_reject_reason_t

p_rt_version_t

typedef version_t p_rt_version_t

PRPC_PDU

typedef struct RPC_PDU * PRPC_PDU

rpcrt_reason_code_t

typedef UINT16 rpcrt_reason_code_t

Enumeration Type Documentation

CLIENT_IN_CHANNEL_STATE

enum CLIENT_IN_CHANNEL_STATE

Enumerator
CLIENT_IN_CHANNEL_STATE_INITIAL
CLIENT_IN_CHANNEL_STATE_CONNECTED
CLIENT_IN_CHANNEL_STATE_SECURITY
CLIENT_IN_CHANNEL_STATE_NEGOTIATED
CLIENT_IN_CHANNEL_STATE_OPENED
CLIENT_IN_CHANNEL_STATE_OPENED_A4W
CLIENT_IN_CHANNEL_STATE_FINAL

CLIENT_OUT_CHANNEL_STATE

enum CLIENT_OUT_CHANNEL_STATE

Enumerator
CLIENT_OUT_CHANNEL_STATE_INITIAL
CLIENT_OUT_CHANNEL_STATE_CONNECTED
CLIENT_OUT_CHANNEL_STATE_SECURITY
CLIENT_OUT_CHANNEL_STATE_NEGOTIATED
CLIENT_OUT_CHANNEL_STATE_OPENED
CLIENT_OUT_CHANNEL_STATE_OPENED_A6W
CLIENT_OUT_CHANNEL_STATE_OPENED_A10W
CLIENT_OUT_CHANNEL_STATE_OPENED_B3W
CLIENT_OUT_CHANNEL_STATE_RECYCLED
CLIENT_OUT_CHANNEL_STATE_FINAL

p_cont_def_result_t

enum p_cont_def_result_t

Enumerator
acceptance
user_rejection
provider_rejection

p_provider_reason_t

enum p_provider_reason_t

Enumerator
reason_not_specified
abstract_syntax_not_supported
proposed_transfer_syntaxes_not_supported
local_limit_exceeded

RPC_CLIENT_CALL_STATE

enum RPC_CLIENT_CALL_STATE

Enumerator
RPC_CLIENT_CALL_STATE_INITIAL
RPC_CLIENT_CALL_STATE_SEND_PDUS
RPC_CLIENT_CALL_STATE_DISPATCHED
RPC_CLIENT_CALL_STATE_RECEIVE_PDU
RPC_CLIENT_CALL_STATE_COMPLETE
RPC_CLIENT_CALL_STATE_FAULT
RPC_CLIENT_CALL_STATE_FINAL

RPC_CLIENT_STATE

enum RPC_CLIENT_STATE

Enumerator
RPC_CLIENT_STATE_INITIAL
RPC_CLIENT_STATE_ESTABLISHED
RPC_CLIENT_STATE_WAIT_SECURE_BIND_ACK
RPC_CLIENT_STATE_WAIT_UNSECURE_BIND_ACK
RPC_CLIENT_STATE_WAIT_SECURE_ALTER_CONTEXT_RESPONSE
RPC_CLIENT_STATE_CONTEXT_NEGOTIATED
RPC_CLIENT_STATE_WAIT_RESPONSE
RPC_CLIENT_STATE_FINAL

VIRTUAL_CONNECTION_STATE

enum VIRTUAL_CONNECTION_STATE

Enumerator
VIRTUAL_CONNECTION_STATE_INITIAL
VIRTUAL_CONNECTION_STATE_OUT_CHANNEL_WAIT
VIRTUAL_CONNECTION_STATE_WAIT_A3W
VIRTUAL_CONNECTION_STATE_WAIT_C2
VIRTUAL_CONNECTION_STATE_OPENED
VIRTUAL_CONNECTION_STATE_FINAL

Function Documentation

rpc_channel_free()

FREERDP_LOCAL void rpc_channel_free

(

RpcChannel *

channel

)

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rpc_channel_read()

FREERDP_LOCAL SSIZE_T rpc_channel_read	(	RpcChannel *	channel,
		wStream *	s,
		size_t	length
	)

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rpc_channel_write()

FREERDP_LOCAL SSIZE_T rpc_channel_write	(	RpcChannel *	channel,
		const BYTE *	data,
		size_t	length
	)

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rpc_connect()

FREERDP_LOCAL BOOL rpc_connect	(	rdpRpc *	rpc,
		UINT32	timeout
	)

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rpc_free()

FREERDP_LOCAL void rpc_free

(

rdpRpc *

rpc

)

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rpc_get_stub_data_info()

FREERDP_LOCAL BOOL rpc_get_stub_data_info	(	const rpcconn_hdr_t *	header,
		size_t *	poffset,
		size_t *	length
	)

PDU Segments:

---

| | | PDU Header |

________________________________
PDU Body
________________________________
Security Trailer
________________________________
Authentication Token
________________________________

PDU Structure with verification trailer

MUST only appear in a request PDU!

---

| | | PDU Header | |________________________________| _______ | | /|\ | | |

Stub Data
________________________________
	PDU Body
Stub Pad
________________________________
Verification Trailer
________________________________
Authentication Pad
________________________________	__|/__

| | | Security Trailer |

________________________________
Authentication Token
________________________________

Security Trailer:

The sec_trailer structure MUST be placed at the end of the PDU, including past stub data, when present. The sec_trailer structure MUST be 4-byte aligned with respect to the beginning of the PDU. Padding octets MUST be used to align the sec_trailer structure if its natural beginning is not already 4-byte aligned.

All PDUs that carry sec_trailer information share certain common fields: frag_length and auth_length. The beginning of the sec_trailer structure for each PDU MUST be calculated to start from offset (frag_length – auth_length – 8) from the beginning of the PDU.

Immediately after the sec_trailer structure, there MUST be a BLOB carrying the authentication information produced by the security provider. This BLOB is called the authentication token and MUST be of size auth_length. The size MUST also be equal to the length from the first octet immediately after the sec_trailer structure all the way to the end of the fragment; the two values MUST be the same.

A client or a server that (during composing of a PDU) has allocated more space for the authentication token than the security provider fills in SHOULD fill in the rest of the allocated space with zero octets. These zero octets are still considered to belong to the authentication token part of the PDU.

According to [MS-RPCE], auth_pad_length is the number of padding octets used to 4-byte align the security trailer, but in practice we get values up to 15, which indicates 16-byte alignment.

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rpc_in_channel_transition_to_state()

FREERDP_LOCAL BOOL rpc_in_channel_transition_to_state	(	RpcInChannel *	inChannel,
		CLIENT_IN_CHANNEL_STATE	state
	)

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rpc_new()

FREERDP_LOCAL rdpRpc* rpc_new

(

rdpTransport *

transport

)

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rpc_offset_align()

FREERDP_LOCAL size_t rpc_offset_align	(	size_t *	offset,
		size_t	alignment
	)

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rpc_offset_pad()

FREERDP_LOCAL size_t rpc_offset_pad	(	size_t *	offset,
		size_t	pad
	)

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rpc_out_channel_new()

FREERDP_LOCAL RpcOutChannel* rpc_out_channel_new

(

rdpRpc *

rpc

)

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rpc_out_channel_replacement_connect()

FREERDP_LOCAL int rpc_out_channel_replacement_connect	(	RpcOutChannel *	outChannel,
		int	timeout
	)

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rpc_out_channel_transition_to_state()

FREERDP_LOCAL BOOL rpc_out_channel_transition_to_state	(	RpcOutChannel *	outChannel,
		CLIENT_OUT_CHANNEL_STATE	state
	)

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rpc_pdu_header_init()

FREERDP_LOCAL rpcconn_common_hdr_t rpc_pdu_header_init

(

const rdpRpc *

rpc

)

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rpc_pdu_header_print()

FREERDP_LOCAL void rpc_pdu_header_print

(

const rpcconn_hdr_t *

header

)

[MS-RPCH]: Remote Procedure Call over HTTP Protocol Specification: http://msdn.microsoft.com/en-us/library/cc243950/

                             Connection Establishment\n

Client Outbound Proxy Inbound Proxy Server
| | | |
|--------------—IN Channel Request------------—>| |
|—OUT Channel Request-->| |<-Legacy Server Response-|
| |<-----------—Legacy Server Response-----------—|
| | | |
|------—CONN_A1-----—>| | |
|-------------------—CONN_B1------------------—>| |
| |-------------------—CONN_A2------------------—>|
| | | |
|<–OUT Channel Response–| |------—CONN_B2-----—>|
|<-----—CONN_A3------—| | |
| |<------------------—CONN_C1-------------------—|
| | |<-----—CONN_B3------—|
|<-----—CONN_C2------—| | |
| | | |

rpc_virtual_connection_transition_to_state()

FREERDP_LOCAL BOOL rpc_virtual_connection_transition_to_state	(	rdpRpc *	rpc,
		RpcVirtualConnection *	connection,
		VIRTUAL_CONNECTION_STATE	state
	)

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