#include <freerdp/config.h>
#include <winpr/crt.h>
#include <winpr/crypto.h>
#include <winpr/shell.h>
#include <winpr/path.h>
#include <winpr/file.h>
#include <freerdp/log.h>
#include "redirection.h"
#include "certificate.h"
#include "license.h"

Macros
#define	TAG FREERDP_TAG("core.license")

#define	PLATFORMID (CLIENT_OS_ID_WINNT_POST_52 \| CLIENT_IMAGE_ID_MICROSOFT)

Functions
static wStream *	license_send_stream_init (rdpLicense *license)

static void	license_generate_randoms (rdpLicense *license)

static BOOL	license_generate_keys (rdpLicense *license)

static BOOL	license_generate_hwid (rdpLicense *license)

static BOOL	license_encrypt_premaster_secret (rdpLicense *license)

static LICENSE_PRODUCT_INFO *	license_new_product_info (void)

static void	license_free_product_info (LICENSE_PRODUCT_INFO *productInfo)

static BOOL	license_read_product_info (wStream s, LICENSE_PRODUCT_INFO productInfo)

static LICENSE_BLOB *	license_new_binary_blob (UINT16 type)

static void	license_free_binary_blob (LICENSE_BLOB *blob)

static BOOL	license_read_binary_blob (wStream s, LICENSE_BLOB blob)

static BOOL	license_write_binary_blob (wStream s, const LICENSE_BLOB blob)

static SCOPE_LIST *	license_new_scope_list (void)

static void	license_free_scope_list (SCOPE_LIST *scopeList)

static BOOL	license_read_scope_list (wStream s, SCOPE_LIST scopeList)

static BOOL	license_read_license_request_packet (rdpLicense license, wStream s)

static BOOL	license_read_platform_challenge_packet (rdpLicense license, wStream s)

static BOOL	license_read_new_or_upgrade_license_packet (rdpLicense license, wStream s)

static BOOL	license_read_error_alert_packet (rdpLicense license, wStream s)

static BOOL	license_write_new_license_request_packet (rdpLicense license, wStream s)

static BOOL	license_answer_license_request (rdpLicense *license)

static BOOL	license_write_platform_challenge_response_packet (rdpLicense license, wStream s, const BYTE *mac_data)

static BOOL	license_send_platform_challenge_response_packet (rdpLicense *license)

static BOOL	license_send_client_info (rdpLicense license, const LICENSE_BLOB calBlob, BYTE *signature)

static BOOL	computeCalHash (const char hostname, char hashStr)

static BOOL	saveCal (rdpSettings settings, const BYTE data, size_t length, const char *hostname)

static BYTE *	loadCalFile (rdpSettings settings, const char hostname, size_t *dataLen)

static BOOL	license_read_preamble (wStream s, BYTE bMsgType, BYTE flags, UINT16 wMsgSize)

static BOOL	license_write_preamble (wStream *s, BYTE bMsgType, BYTE flags, UINT16 wMsgSize)

static BOOL	license_send (rdpLicense license, wStream s, BYTE type)

int	license_recv (rdpLicense license, wStream s)

static BOOL	license_get_server_rsa_public_key (rdpLicense *license)

static BOOL	license_rc4_with_licenseKey (const rdpLicense license, const BYTE input, size_t len, LICENSE_BLOB *target)

static BOOL	license_encrypt_and_MAC (rdpLicense license, const BYTE input, size_t len, LICENSE_BLOB target, BYTE mac)

static BOOL	license_decrypt_and_check_MAC (rdpLicense license, const BYTE input, size_t len, LICENSE_BLOB target, const BYTE packetMac)

static BOOL	license_write_encrypted_premaster_secret_blob (wStream s, const LICENSE_BLOB blob, UINT32 ModulusLength)

static BOOL	license_read_encrypted_blob (const rdpLicense license, wStream s, LICENSE_BLOB *target)

BOOL	license_send_valid_client_error_packet (rdpRdp *rdp)

rdpLicense *	license_new (rdpRdp *rdp)

void	license_free (rdpLicense *license)

Variables
static const char	licenseStore [] = "licenses"

Macro Definition Documentation

◆ PLATFORMID

#define PLATFORMID (CLIENT_OS_ID_WINNT_POST_52 | CLIENT_IMAGE_ID_MICROSOFT)

◆ TAG

#define TAG FREERDP_TAG("core.license")

FreeRDP: A Remote Desktop Protocol Implementation RDP Licensing

Copyright 2011-2013 Marc-Andre Moreau marca.nosp@m.ndre.nosp@m..more.nosp@m.au@g.nosp@m.mail..nosp@m.com Copyright 2014 Norbert Federa norbe.nosp@m.rt.f.nosp@m.edera.nosp@m.@thi.nosp@m.ncast.nosp@m..com Copyright 2018 David Fort conta.nosp@m.ct@h.nosp@m.arden.nosp@m.ing-.nosp@m.consu.nosp@m.ltin.nosp@m.g.com

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Function Documentation

◆ computeCalHash()

static BOOL computeCalHash	(	const char *	hostname,
		char *	hashStr
	)

static

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◆ license_answer_license_request()

BOOL license_answer_license_request ( rdpLicense * license )

static

Send a NEW_LICENSE_REQUEST packet.
http://msdn.microsoft.com/en-us/library/cc241918/

Parameters

license license module

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◆ license_decrypt_and_check_MAC()

static BOOL license_decrypt_and_check_MAC	(	rdpLicense *	license,
		const BYTE *	input,
		size_t	len,
		LICENSE_BLOB *	target,
		const BYTE *	packetMac
	)

static

Decrypt the input using the license key and check the MAC

Parameters

license	rdpLicense to get keys and salt from
input	the input data to decrypt and MAC
len	size of input
target	a target LICENSE_BLOB where the decrypted input will be stored
mac	the signature buffer (16 bytes)

Returns: if the operation completed successfully

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◆ license_encrypt_and_MAC()

static BOOL license_encrypt_and_MAC	(	rdpLicense *	license,
		const BYTE *	input,
		size_t	len,
		LICENSE_BLOB *	target,
		BYTE *	mac
	)

static

Encrypt the input using the license key and MAC the input for a signature

Parameters

license	rdpLicense to get keys and salt from
input	the input data to encrypt and MAC
len	size of input
target	a target LICENSE_BLOB where the encrypted input will be stored
mac	the signature buffer (16 bytes)

Returns: if the operation completed successfully

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◆ license_encrypt_premaster_secret()

BOOL license_encrypt_premaster_secret ( rdpLicense * license )

static

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◆ license_free()

void license_free ( rdpLicense * license )

Free license module.

Parameters

license license module to be freed

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◆ license_free_binary_blob()

void license_free_binary_blob ( LICENSE_BLOB * blob )

static

Free License Binary Blob (LICENSE_BINARY_BLOB).
http://msdn.microsoft.com/en-us/library/cc240481/

Parameters

blob	license binary blob

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◆ license_free_product_info()

void license_free_product_info ( LICENSE_PRODUCT_INFO * productInfo )

static

Free Product Information (LICENSE_PRODUCT_INFO).
http://msdn.microsoft.com/en-us/library/cc241915/

Parameters

productInfo product information

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◆ license_free_scope_list()

void license_free_scope_list ( SCOPE_LIST * scopeList )

static

Free License Scope List (SCOPE_LIST).
http://msdn.microsoft.com/en-us/library/cc241916/

Parameters

scopeList scope list

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◆ license_generate_hwid()

BOOL license_generate_hwid ( rdpLicense * license )

static

Generate Unique Hardware Identifier (CLIENT_HARDWARE_ID).

Parameters

license license module

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◆ license_generate_keys()

static BOOL license_generate_keys ( rdpLicense * license )

static

Generate License Cryptographic Keys.

Parameters

license license module

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◆ license_generate_randoms()

void license_generate_randoms ( rdpLicense * license )

static

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◆ license_get_server_rsa_public_key()

static BOOL license_get_server_rsa_public_key ( rdpLicense * license )

static

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◆ license_new()

rdpLicense* license_new ( rdpRdp * rdp )

Instantiate new license module.

Parameters

rdp	RDP module

Returns: new license module

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◆ license_new_binary_blob()

LICENSE_BLOB * license_new_binary_blob ( UINT16 type )

static

Allocate New License Binary Blob (LICENSE_BINARY_BLOB).
http://msdn.microsoft.com/en-us/library/cc240481/

Returns: new license binary blob

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◆ license_new_product_info()

LICENSE_PRODUCT_INFO * license_new_product_info ( )

static

Allocate New Product Information (LICENSE_PRODUCT_INFO).
http://msdn.microsoft.com/en-us/library/cc241915/

Returns: new product information

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◆ license_new_scope_list()

SCOPE_LIST * license_new_scope_list ( )

static

Allocate New License Scope List (SCOPE_LIST).
http://msdn.microsoft.com/en-us/library/cc241916/

Returns: new scope list

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◆ license_rc4_with_licenseKey()

static BOOL license_rc4_with_licenseKey	(	const rdpLicense *	license,
		const BYTE *	input,
		size_t	len,
		LICENSE_BLOB *	target
	)

static

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◆ license_read_binary_blob()

BOOL license_read_binary_blob	(	wStream *	s,
		LICENSE_BLOB *	blob
	)

static

Read License Binary Blob (LICENSE_BINARY_BLOB).
http://msdn.microsoft.com/en-us/library/cc240481/

Parameters

s	stream
blob	license binary blob

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◆ license_read_encrypted_blob()

static BOOL license_read_encrypted_blob	(	const rdpLicense *	license,
		wStream *	s,
		LICENSE_BLOB *	target
	)

static

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◆ license_read_error_alert_packet()

BOOL license_read_error_alert_packet	(	rdpLicense *	license,
		wStream *	s
	)

static

Read an ERROR_ALERT packet.
http://msdn.microsoft.com/en-us/library/cc240482/

Parameters

license	license module
s	stream

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◆ license_read_license_request_packet()

BOOL license_read_license_request_packet	(	rdpLicense *	license,
		wStream *	s
	)

static

Read a LICENSE_REQUEST packet.
http://msdn.microsoft.com/en-us/library/cc241914/

Parameters

license	license module
s	stream

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◆ license_read_new_or_upgrade_license_packet()

BOOL license_read_new_or_upgrade_license_packet	(	rdpLicense *	license,
		wStream *	s
	)

static

Read a NEW_LICENSE packet.
http://msdn.microsoft.com/en-us/library/cc241926/

Parameters

license	license module
s	stream

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◆ license_read_platform_challenge_packet()

BOOL license_read_platform_challenge_packet	(	rdpLicense *	license,
		wStream *	s
	)

static

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◆ license_read_preamble()

static BOOL license_read_preamble	(	wStream *	s,
		BYTE *	bMsgType,
		BYTE *	flags,
		UINT16 *	wMsgSize
	)

static

Read a licensing preamble.
http://msdn.microsoft.com/en-us/library/cc240480/

Parameters

s	stream
bMsgType	license message type
flags	message flags
wMsgSize	message size

Returns: if the operation completed successfully

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◆ license_read_product_info()

BOOL license_read_product_info	(	wStream *	s,
		LICENSE_PRODUCT_INFO *	productInfo
	)

static

Read Product Information (PRODUCT_INFO).
http://msdn.microsoft.com/en-us/library/cc241915/

Parameters

s	stream
productInfo	product information

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◆ license_read_scope_list()

BOOL license_read_scope_list	(	wStream *	s,
		SCOPE_LIST *	scopeList
	)

static

Read License Scope List (SCOPE_LIST).
http://msdn.microsoft.com/en-us/library/cc241916/

Parameters

s	stream
scopeList	scope list

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◆ license_recv()

int license_recv	(	rdpLicense *	license,
		wStream *	s
	)

Receive an RDP licensing packet.
http://msdn.microsoft.com/en-us/library/cc240479/

Parameters

license	license module
s	stream

Returns: if the operation completed successfully

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◆ license_send()

static BOOL license_send	(	rdpLicense *	license,
		wStream *	s,
		BYTE	type
	)

static

Send an RDP licensing packet.
http://msdn.microsoft.com/en-us/library/cc240479/

Parameters

license	license module
s	stream

Using EXTENDED_ERROR_MSG_SUPPORTED here would cause mstsc to crash when running in server mode! This flag seems to be incorrectly documented.

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◆ license_send_client_info()

BOOL license_send_client_info	(	rdpLicense *	license,
		const LICENSE_BLOB *	calBlob,
		BYTE *	signature
	)

static

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◆ license_send_platform_challenge_response_packet()

BOOL license_send_platform_challenge_response_packet ( rdpLicense * license )

static

Send Client Challenge Response Packet.
http://msdn.microsoft.com/en-us/library/cc241922/

Parameters

license license module

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◆ license_send_stream_init()

wStream * license_send_stream_init ( rdpLicense * license )

static

Initialize a license packet stream.

Parameters

license license module

Returns: stream

Encryption of licensing packets is optional even if the rdp security layer is used. If the peer has not indicated that it is capable of processing encrypted licensing packets (rdp->do_crypt_license) we turn off encryption (via rdp->do_crypt) before initializing the rdp stream and reenable it afterwards.

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