Merge pull request #3143 from matt335672/remove_licensing_exchange

Remove Licensing exchange
This commit is contained in:
matt335672 2024-07-15 09:02:32 +01:00 committed by GitHub
commit b6407a9bf9
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GPG Key ID: B5690EEEBB952194
2 changed files with 45 additions and 308 deletions

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@ -58,6 +58,10 @@
#define SEC_TAG_CLI_4 0xc004 /* CS_CLUSTER? */ #define SEC_TAG_CLI_4 0xc004 /* CS_CLUSTER? */
#define SEC_TAG_CLI_MONITOR 0xc005 /* CS_MONITOR */ #define SEC_TAG_CLI_MONITOR 0xc005 /* CS_MONITOR */
#define SEC_TAG_CLI_MONITOR_EX 0xc008 /* CS_MONITOR_EX */ #define SEC_TAG_CLI_MONITOR_EX 0xc008 /* CS_MONITOR_EX */
#define SEC_TAG_SRV_INFO 0x0c01 /* SC_CORE */
#define SEC_TAG_SRV_CRYPT 0x0c02 /* SC_SECURITY */
#define SEC_TAG_SRV_CHANNELS 0x0c03 /* SC_NET? */
/* Client Core Data: colorDepth, postBeta2ColorDepth (2.2.1.3.2) */ /* Client Core Data: colorDepth, postBeta2ColorDepth (2.2.1.3.2) */
#define RNS_UD_COLOR_4BPP 0xCA00 #define RNS_UD_COLOR_4BPP 0xCA00
@ -159,9 +163,16 @@
#define RDP5_NO_CURSOR_SHADOW 0x20 #define RDP5_NO_CURSOR_SHADOW 0x20
#define RDP5_NO_CURSORSETTINGS 0x40 /* disables cursor blinking */ #define RDP5_NO_CURSORSETTINGS 0x40 /* disables cursor blinking */
/* LICENSE_PREAMBLE (2.2.1.12.1.1) */
#define ERROR_ALERT 0xff
#define PREAMBLE_VERSION_3_0 0x03
/* LICENSE_BINARY_BLOB (2.2.1.12.1.2) */ /* LICENSE_BINARY_BLOB (2.2.1.12.1.2) */
#define LICENCE_TAG_USER 0x000f /* BB_CLIENT_USER_NAME_BLOB */ #define BB_ERROR_BLOB 0x0004
#define LICENCE_TAG_HOST 0x0010 /* BB_CLIENT_MACHINE_NAME_BLOB */
/* LICENSE_ERROR_MESSAGE (2.2.1.12.1.3) */
#define STATUS_VALID_CLIENT 0x00000007
#define ST_NO_TRANSITION 0x00000002
/* Maps to generalCapabilitySet in T.128 page 138 */ /* Maps to generalCapabilitySet in T.128 page 138 */
@ -452,15 +463,11 @@
#define PDUTYPE2_MONITOR_LAYOUT_PDU 55 #define PDUTYPE2_MONITOR_LAYOUT_PDU 55
/* TS_SECURITY_HEADER: flags (2.2.8.1.1.2.1) */ /* TS_SECURITY_HEADER: flags (2.2.8.1.1.2.1) */
/* TODO: to be renamed */ #define SEC_EXCHANGE_PKT 0x0001
#define SEC_CLIENT_RANDOM 0x0001 /* SEC_EXCHANGE_PKT? */
#define SEC_ENCRYPT 0x0008 #define SEC_ENCRYPT 0x0008
#define SEC_LOGON_INFO 0x0040 /* SEC_INFO_PKT */ #define SEC_INFO_PKT 0x0040
#define SEC_LICENCE_NEG 0x0080 /* SEC_LICENSE_PKT */ #define SEC_LICENSE_PKT 0x0080
#define SEC_LICENSE_ENCRYPT_CS 0x0280
#define SEC_TAG_SRV_INFO 0x0c01 /* SC_CORE */
#define SEC_TAG_SRV_CRYPT 0x0c02 /* SC_SECURITY */
#define SEC_TAG_SRV_CHANNELS 0x0c03 /* SC_NET? */
/* Slow-Path Input Event: messageType (2.2.8.1.1.3.1.1) */ /* Slow-Path Input Event: messageType (2.2.8.1.1.3.1.1) */
/* TODO: to be renamed */ /* TODO: to be renamed */

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@ -43,207 +43,6 @@ static tui8 g_pad_92[48] =
92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92
}; };
/*****************************************************************************/
/* Licensing request v2 PDU
*
* [MS-RDPBCGR] TS_SECURITY_HEADER - Basic
* [MS-RDPELE] SERVER_LICENSE_REQUEST with PREAMBLE_VERSION_2_0
*/
/* some compilers need unsigned char to avoid warnings */
static tui8 g_lic1[322] =
{
/* [MS-RDPBCGR] TS_SECURITY_HEADER - Basic
* flags (2) = 0x0080 (SEC_LICENSE_PKT)
* flagsHi (2) = unused (arbitrary data)
* [MS-RDPBCGR] LICENSE_PREAMBLE
* bMsgType (1) = 0x01 (LICENSE_REQUEST)
* flags (1) = 0x02 (PREAMBLE_VERSION_2_0)
* wMsgSize (2) = 318 (excludes the 4 bytes TS_SECURITY_HEADER Basic)
*/
0x80, 0x00, 0x3e, 0x01, 0x01, 0x02, 0x3e, 0x01,
/* [MS-RDPELE] SERVER_LICENSE_REQUEST
* ServerRandom (32) = <see hex below>
*/
0x7b, 0x3c, 0x31, 0xa6, 0xae, 0xe8, 0x74, 0xf6,
0xb4, 0xa5, 0x03, 0x90, 0xe7, 0xc2, 0xc7, 0x39,
0xba, 0x53, 0x1c, 0x30, 0x54, 0x6e, 0x90, 0x05,
0xd0, 0x05, 0xce, 0x44, 0x18, 0x91, 0x83, 0x81,
/* [MS-RDPELE] SERVER_LICENSE_REQUEST - ProductInfo
* [MS-RDPELE] PRODUCT_INFO
* dwVersion (4) = 0x00040000
* cbCompanyName (4) = 0x0000002c (44)
*/
0x00, 0x00, 0x04, 0x00, 0x2c, 0x00, 0x00, 0x00,
/*
* pbCompanyName (44) = UTF-16("Microsoft Corporation")
* cbProductId (4) = 0x00000008 (8)
*/
0x4d, 0x00, 0x69, 0x00, 0x63, 0x00, 0x72, 0x00,
0x6f, 0x00, 0x73, 0x00, 0x6f, 0x00, 0x66, 0x00,
0x74, 0x00, 0x20, 0x00, 0x43, 0x00, 0x6f, 0x00,
0x72, 0x00, 0x70, 0x00, 0x6f, 0x00, 0x72, 0x00,
0x61, 0x00, 0x74, 0x00, 0x69, 0x00, 0x6f, 0x00,
0x6e, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00,
/*
* pbProductId (8) = UTF-16("236")
*/
0x32, 0x00, 0x33, 0x00, 0x36, 0x00, 0x00, 0x00,
/* [MS-RDPELE] SERVER_LICENSE_REQUEST - KeyExchangeList
* [MS-RDPBCGR] LICENSE_BINARY_BLOB
* wBlobType (2) = 0x000d (BB_KEY_EXCHG_ALG_BLOB)
* wBlobLen (2) = 0x0004 (4)
* blobData (4) = 0x00000001 (KEY_EXCHANGE_ALG_RSA)
*/
0x0d, 0x00, 0x04, 0x00, 0x01, 0x00, 0x00, 0x00,
/* [MS-RDPELE] SERVER_LICENSE_REQUEST - ServerCertificate
* [MS-RDPBCGR] LICENSE_BINARY_BLOB
* wBlobType (2) = BB_CERTIFICATE_BLOB (0x0003)
* wBlobLen (2) = 0x00b8 (184)
* blobData = <SERVER_CERTIFICATE>
*
* [MS-RDPBCGR] SERVER_CERTIFICATE
* dwVersion (31 bits) = 0x00000001 (CERT_CHAIN_VERSION_1)
* t (1 bit) = 0 (temporary certificate)
*/
0x03, 0x00, 0xb8, 0x00, 0x01, 0x00, 0x00, 0x00,
/*
* certData = <PROPRIETARYSERVERCERTIFICATE>
*
* [MS-RDPBCGR] PROPRIETARYSERVERCERTIFICATE
* dwSigAlgId (4) = 0x00000001 (SIGNATURE_ALG_RSA)
* dwKeyAlgId (4) = 0x00000001 (KEY_EXCHANGE_ALG_RSA)
* wPublicKeyBlobType (2) = 0x0006 (BB_RSA_KEY_BLOB)
* wPublicKeyBlobLen (2) = 0x005c (92)
* PublicKeyBlob = <RSA_PUBLIC_KEY>
*
* [MS-RDPBCGR] RSA_PUBLIC_KEY
* magic (4) = 0x31415352
* keylen (4) = 0x00000048 (72)
* bitlen (4) = 0x00000200 (512)
* datalen (4) = 0x0000003f (63)
* pubExp (4) = 0x00010001 (65537)
*/
0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
0x06, 0x00, 0x5c, 0x00, 0x52, 0x53, 0x41, 0x31,
0x48, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00,
0x3f, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00,
/*
* modulus (72) = <see hex below>
*/
0x01, 0xc7, 0xc9, 0xf7, 0x8e, 0x5a, 0x38, 0xe4,
0x29, 0xc3, 0x00, 0x95, 0x2d, 0xdd, 0x4c, 0x3e,
0x50, 0x45, 0x0b, 0x0d, 0x9e, 0x2a, 0x5d, 0x18,
0x63, 0x64, 0xc4, 0x2c, 0xf7, 0x8f, 0x29, 0xd5,
0x3f, 0xc5, 0x35, 0x22, 0x34, 0xff, 0xad, 0x3a,
0xe6, 0xe3, 0x95, 0x06, 0xae, 0x55, 0x82, 0xe3,
0xc8, 0xc7, 0xb4, 0xa8, 0x47, 0xc8, 0x50, 0x71,
0x74, 0x29, 0x53, 0x89, 0x6d, 0x9c, 0xed, 0x70,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* [MS-RDPELE] SERVER_LICENSE_REQUEST - ServerCertificate
* [MS-RDPBCGR] LICENSE_BINARY_BLOB - blobData
* [MS-RDPBCGR] SERVER_CERTIFICATE - certData
* [MS-RDPBCGR] PROPRIETARYSERVERCERTIFICATE
* wSignatureBlobType (2) = 0x0008 (BB_RSA_SIGNATURE_BLOB)
* wSignatureBlobLen (2) = 0x0048 (72)
* SignatureBlob (72) = <see hex below, calculated using [MS-RDPBCGR] 5.3.3.1.2>
*/
0x08, 0x00, 0x48, 0x00, 0xa8, 0xf4, 0x31, 0xb9,
0xab, 0x4b, 0xe6, 0xb4, 0xf4, 0x39, 0x89, 0xd6,
0xb1, 0xda, 0xf6, 0x1e, 0xec, 0xb1, 0xf0, 0x54,
0x3b, 0x5e, 0x3e, 0x6a, 0x71, 0xb4, 0xf7, 0x75,
0xc8, 0x16, 0x2f, 0x24, 0x00, 0xde, 0xe9, 0x82,
0x99, 0x5f, 0x33, 0x0b, 0xa9, 0xa6, 0x94, 0xaf,
0xcb, 0x11, 0xc3, 0xf2, 0xdb, 0x09, 0x42, 0x68,
0x29, 0x56, 0x58, 0x01, 0x56, 0xdb, 0x59, 0x03,
0x69, 0xdb, 0x7d, 0x37, 0x00, 0x00, 0x00, 0x00,
/* <last 4 bytes of SignatureBlob>
*
* [MS-RDPELE] SERVER_LICENSE_REQUEST - ScopeList
* [MS-RDPELE] SCOPE_LIST
* ScopeCount (4) = 0x00000001 (1)
* ScopeArray = <LICENSE_BINARY_BLOB>
*
* [MS-RDPBCGR] LICENSE_BINARY_BLOB
* wBlobType (2) = 0x000e (BB_SCOPE_BLOB)
* wBlobLen (2) = 0x000e (14)
* blobData (14) = ISO-8859-1("microsoft.com")
*/
0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
0x0e, 0x00, 0x0e, 0x00, 0x6d, 0x69, 0x63, 0x72,
0x6f, 0x73, 0x6f, 0x66, 0x74, 0x2e, 0x63, 0x6f,
0x6d, 0x00
};
/*****************************************************************************/
/* Licensing success response v2 PDU
*
* [MS-RDPBCGR] TS_SECURITY_HEADER - Basic
* [MS-RDPELE] LICENSE_ERROR_MESSAGE with STATUS_VALID_CLIENT
*/
/* some compilers need unsigned char to avoid warnings */
static tui8 g_lic2[20] =
{
/* [MS-RDPBCGR] TS_SECURITY_HEADER - Basic
* flags (2) = 0x0080 (SEC_LICENSE_PKT)
* flagsHi (2) = unused (arbitrary data)
* [MS-RDPBCGR] LICENSE_PREAMBLE
* bMsgType (1) = 0xff (ERROR_ALERT)
* flags (1) = 0x02 (PREAMBLE_VERSION_2_0)
* wMsgSize (2) = 0x10 (16, excludes the 4 bytes TS_SECURITY_HEADER Basic)
*/
0x80, 0x00, 0x10, 0x00, 0xff, 0x02, 0x10, 0x00,
/*
* [MS-RDPBCGR] LICENSE_ERROR_MESSAGE
* dwErrorCode (4) = 0x00000007 (STATUS_VALID_CLIENT)
* dwStateTransition (4) = 0x00000002 (ST_NO_TRANSITION)
* bbErrorInfo = <LICENSE_BINARY_BLOB>
*/
0x07, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00,
/*
* [MS-RDPBCGR] LICENSE_BINARY_BLOB
* wBlobType (2) = 0x1428 <ignored by client> (should be 0x0004 BB_ERROR_BLOB)
* wBlobLen (2) = 0x0000 (0)
*/
0x28, 0x14, 0x00, 0x00
};
/*****************************************************************************/
/* Licensing success response v3 PDU
*
* [MS-RDPBCGR] TS_SECURITY_HEADER - Basic
* [MS-RDPELE] LICENSE_ERROR_MESSAGE with STATUS_VALID_CLIENT
*
* used for Media Center Edition
*/
/* some compilers need unsigned char to avoid warnings */
static tui8 g_lic3[20] =
{
/* S */
/* [MS-RDPBCGR] TS_SECURITY_HEADER - Basic
* flags (2) = 0x0280 (SEC_LICENSE_PKT | SEC_LICENSE_ENCRYPT_CS)
* flagsHi (2) = unused (arbitrary data)
* [MS-RDPBCGR] LICENSE_PREAMBLE
* bMsgType (1) = 0xff (ERROR_ALERT)
* flags (1) = 0x03 (PREAMBLE_VERSION_3_0)
* wMsgSize (2) = 0x0010 (16, excludes the 4 bytes TS_SECURITY_HEADER Basic)
*/
0x80, 0x02, 0x10, 0x00, 0xff, 0x03, 0x10, 0x00,
/*
* [MS-RDPBCGR] LICENSE_ERROR_MESSAGE
* dwErrorCode (4) = 0x00000007 (STATUS_VALID_CLIENT)
* dwStateTransition (4) = 0x00000002 (ST_NO_TRANSITION)
* bbErrorInfo = <LICENSE_BINARY_BLOB>
*/
0x07, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00,
/*
* [MS-RDPBCGR] LICENSE_BINARY_BLOB
* wBlobType (2) = 0x99f3 <ignored by client> (should be 0x0004 BB_ERROR_BLOB)
* wBlobLen (2) = 0x0000 (0)
*/
0xf3, 0x99, 0x00, 0x00
};
static const tui8 g_fips_reverse_table[256] = static const tui8 g_fips_reverse_table[256] =
{ {
0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0, 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
@ -1172,43 +971,10 @@ xrdp_sec_process_logon_info(struct xrdp_sec *self, struct stream *s)
return 0; return 0;
} }
/*****************************************************************************/
/* returns error */
static int
xrdp_sec_send_lic_initial(struct xrdp_sec *self)
{
struct stream *s;
make_stream(s);
init_stream(s, 8192);
if (xrdp_mcs_init(self->mcs_layer, s) != 0)
{
LOG(LOG_LEVEL_ERROR, "xrdp_sec_send_lic_initial: xrdp_mcs_init failed");
free_stream(s);
return 1;
}
out_uint8a(s, g_lic1, sizeof(g_lic1));
s_mark_end(s);
LOG_DEVEL(LOG_LEVEL_TRACE, "Sending [MS-RDPELE] SERVER_LICENSE_REQUEST");
if (xrdp_mcs_send(self->mcs_layer, s, MCS_GLOBAL_CHANNEL) != 0)
{
LOG(LOG_LEVEL_ERROR, "Sending [MS-RDPELE] SERVER_LICENSE_REQUEST failed");
free_stream(s);
return 1;
}
free_stream(s);
return 0;
}
/*****************************************************************************/ /*****************************************************************************/
/* /*
* Send a [MS-RDPELE] LICENSE_ERROR_MESSAGE with STATUS_VALID_CLIENT * Send a [MS-RDPBCGR] Server License Error PDU (2.2.1.12) with
* See also: [MS-RDPELE] 1.3.3 Licensing PDU Flows * STATUS_VALID_CLIENT
*/ */
/* returns error */ /* returns error */
static int static int
@ -1226,45 +992,34 @@ xrdp_sec_send_lic_response(struct xrdp_sec *self)
return 1; return 1;
} }
out_uint8a(s, g_lic2, sizeof(g_lic2)); /* [MS-RDPBCGR] TS_SECURITY_HEADER */
/* A careful reading of [MS-RDPBCGR] 2.2.1.12 shows that a securityHeader
* MUST be included, and provided the flag fields of the header does
* not contain SEC_ENCRYPT, it is always possible to send a basic
* security header */
out_uint16_le(s, SEC_LICENSE_PKT | SEC_LICENSE_ENCRYPT_CS); /* flags */
out_uint16_le(s, 0); /* flagsHi */
/* [MS-RDPBCGR] LICENSE_VALID_CLIENT_DATA */
/* preamble (LICENSE_PREAMBLE) */
out_uint8(s, ERROR_ALERT);
out_uint8(s, PREAMBLE_VERSION_3_0);
out_uint16_le(s, 16); /* Message size, including pre-amble */
/* validClientMessage */
/* From [MS-RDPBCGR] 2.2.12.1, dwStateTransition must be ST_NO_TRANSITION,
* and the bbErrorInfo field must contain an empty blob of type
* BB_ERROR_BLOB */
out_uint32_le(s, STATUS_VALID_CLIENT); /* dwErrorCode */
out_uint32_le(s, ST_NO_TRANSITION); /* dwStateTransition */
out_uint16_le(s, BB_ERROR_BLOB); /* wBlobType */
out_uint16_le(s, 0); /* wBlobLen */
s_mark_end(s); s_mark_end(s);
LOG_DEVEL(LOG_LEVEL_TRACE, "Sending [MS-RDPELE] LICENSE_ERROR_MESSAGE with STATUS_VALID_CLIENT"); LOG_DEVEL(LOG_LEVEL_TRACE, "Sending [MS-RDPBCGR] Server License Error PDU with STATUS_VALID_CLIENT");
if (xrdp_mcs_send(self->mcs_layer, s, MCS_GLOBAL_CHANNEL) != 0) if (xrdp_mcs_send(self->mcs_layer, s, MCS_GLOBAL_CHANNEL) != 0)
{ {
LOG(LOG_LEVEL_ERROR, "Sending [MS-RDPELE] LICENSE_ERROR_MESSAGE with STATUS_VALID_CLIENT failed"); LOG(LOG_LEVEL_ERROR, "Sending [MS-RDPBCGR] Server License Error PDU with STATUS_VALID_CLIENT failed");
free_stream(s);
return 1;
}
free_stream(s);
return 0;
}
/*****************************************************************************/
/* returns error */
static int
xrdp_sec_send_media_lic_response(struct xrdp_sec *self)
{
struct stream *s;
make_stream(s);
init_stream(s, 8192);
if (xrdp_mcs_init(self->mcs_layer, s) != 0)
{
LOG(LOG_LEVEL_ERROR, "xrdp_sec_send_media_lic_response: xrdp_mcs_init failed");
free_stream(s);
return 1;
}
out_uint8a(s, g_lic3, sizeof(g_lic3));
s_mark_end(s);
LOG_DEVEL(LOG_LEVEL_TRACE, "Sending [MS-RDPELE] LICENSE_ERROR_MESSAGE with STATUS_VALID_CLIENT");
if (xrdp_mcs_send(self->mcs_layer, s, MCS_GLOBAL_CHANNEL) != 0)
{
LOG(LOG_LEVEL_ERROR, "Sending [MS-RDPELE] LICENSE_ERROR_MESSAGE with STATUS_VALID_CLIENT failed");
free_stream(s); free_stream(s);
return 1; return 1;
} }
@ -1633,7 +1388,7 @@ xrdp_sec_recv(struct xrdp_sec *self, struct stream *s, int *chan)
} }
} }
if (flags & SEC_CLIENT_RANDOM) /* 0x01 TS_SECURITY_PACKET */ if (flags & SEC_EXCHANGE_PKT) /* 0x01 TS_SECURITY_PACKET */
{ {
if (!s_check_rem_and_log(s, 4, "Parsing [MS-RDPBCGR] TS_SECURITY_PACKET")) if (!s_check_rem_and_log(s, 4, "Parsing [MS-RDPBCGR] TS_SECURITY_PACKET"))
{ {
@ -1672,7 +1427,7 @@ xrdp_sec_recv(struct xrdp_sec *self, struct stream *s, int *chan)
return 0; return 0;
} }
if (flags & SEC_LOGON_INFO) /* 0x40 SEC_INFO_PKT */ if (flags & SEC_INFO_PKT)
{ {
if (xrdp_sec_process_logon_info(self, s) != 0) if (xrdp_sec_process_logon_info(self, s) != 0)
{ {
@ -1680,31 +1435,6 @@ xrdp_sec_recv(struct xrdp_sec *self, struct stream *s, int *chan)
return 1; return 1;
} }
if (self->rdp_layer->client_info.is_mce)
{
if (xrdp_sec_send_media_lic_response(self) != 0)
{
LOG(LOG_LEVEL_ERROR, "xrdp_sec_recv: xrdp_sec_send_media_lic_response failed");
return 1;
}
LOG_DEVEL(LOG_LEVEL_DEBUG, "xrdp_sec_recv: out 'send demand active'");
return -1; /* special error that means send demand active */
}
if (xrdp_sec_send_lic_initial(self) != 0)
{
LOG(LOG_LEVEL_ERROR, "xrdp_sec_recv: xrdp_sec_send_lic_initial failed");
return 1;
}
*chan = 1; /* just set a non existing channel and exit */
LOG_DEVEL(LOG_LEVEL_DEBUG, "xrdp_sec_recv: out channel 1 (non-existing channel)");
return 0;
}
if (flags & SEC_LICENCE_NEG) /* 0x80 SEC_LICENSE_PKT */
{
if (xrdp_sec_send_lic_response(self) != 0) if (xrdp_sec_send_lic_response(self) != 0)
{ {
LOG(LOG_LEVEL_ERROR, "xrdp_sec_recv: xrdp_sec_send_lic_response failed"); LOG(LOG_LEVEL_ERROR, "xrdp_sec_recv: xrdp_sec_send_lic_response failed");