/src/FreeRDP/winpr/libwinpr/sspi/Schannel/schannel.c

Source (jump to first uncovered line)
/**
 * WinPR: Windows Portable Runtime
 * Schannel Security Package
 *
 * Copyright 2012-2014 Marc-Andre Moreau <marcandre.moreau@gmail.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.
 */

#include <winpr/config.h>

#include <winpr/crt.h>
#include <winpr/sspi.h>

#include "schannel.h"

#include "../sspi.h"
#include "../../log.h"

static char* SCHANNEL_PACKAGE_NAME = "Schannel";

#define TAG WINPR_TAG("sspi.Schannel")

SCHANNEL_CONTEXT* schannel_ContextNew(void)
{
  SCHANNEL_CONTEXT* context = NULL;
  context = (SCHANNEL_CONTEXT*)calloc(1, sizeof(SCHANNEL_CONTEXT));

  if (!context)
    return NULL;

  context->openssl = schannel_openssl_new();

  if (!context->openssl)
  {
    free(context);
    return NULL;
  }

  return context;
}

void schannel_ContextFree(SCHANNEL_CONTEXT* context)
{
  if (!context)
    return;

  schannel_openssl_free(context->openssl);
  free(context);
}

static SCHANNEL_CREDENTIALS* schannel_CredentialsNew(void)
{
  SCHANNEL_CREDENTIALS* credentials = NULL;
  credentials = (SCHANNEL_CREDENTIALS*)calloc(1, sizeof(SCHANNEL_CREDENTIALS));
  return credentials;
}

static void schannel_CredentialsFree(SCHANNEL_CREDENTIALS* credentials)
{
  free(credentials);
}

static ALG_ID schannel_SupportedAlgs[] = { CALG_AES_128,
                                         CALG_AES_256,
                                         CALG_RC4,
                                         CALG_DES,
                                         CALG_3DES,
                                         CALG_MD5,
                                         CALG_SHA1,
                                         CALG_SHA_256,
                                         CALG_SHA_384,
                                         CALG_SHA_512,
                                         CALG_RSA_SIGN,
                                         CALG_DH_EPHEM,
                                         (ALG_CLASS_KEY_EXCHANGE | ALG_TYPE_RESERVED7 |
                                          6), /* what is this? */
                                         CALG_DSS_SIGN,
                                         CALG_ECDSA };

static SECURITY_STATUS SEC_ENTRY schannel_QueryCredentialsAttributesW(PCredHandle phCredential,
                                                                      ULONG ulAttribute,
                                                                      void* pBuffer)
{
  if (ulAttribute == SECPKG_ATTR_SUPPORTED_ALGS)
  {
    PSecPkgCred_SupportedAlgs SupportedAlgs = (PSecPkgCred_SupportedAlgs)pBuffer;
    SupportedAlgs->cSupportedAlgs = sizeof(schannel_SupportedAlgs) / sizeof(ALG_ID);
    SupportedAlgs->palgSupportedAlgs = (ALG_ID*)schannel_SupportedAlgs;
    return SEC_E_OK;
  }
  else if (ulAttribute == SECPKG_ATTR_CIPHER_STRENGTHS)
  {
    PSecPkgCred_CipherStrengths CipherStrengths = (PSecPkgCred_CipherStrengths)pBuffer;
    CipherStrengths->dwMinimumCipherStrength = 40;
    CipherStrengths->dwMaximumCipherStrength = 256;
    return SEC_E_OK;
  }
  else if (ulAttribute == SECPKG_ATTR_SUPPORTED_PROTOCOLS)
  {
    PSecPkgCred_SupportedProtocols SupportedProtocols = (PSecPkgCred_SupportedProtocols)pBuffer;
    /* Observed SupportedProtocols: 0x208A0 */
    SupportedProtocols->grbitProtocol = (SP_PROT_CLIENTS | SP_PROT_SERVERS);
    return SEC_E_OK;
  }

  WLog_ERR(TAG, "TODO: Implement ulAttribute=%08" PRIx32, ulAttribute);
  return SEC_E_UNSUPPORTED_FUNCTION;
}

static SECURITY_STATUS SEC_ENTRY schannel_QueryCredentialsAttributesA(PCredHandle phCredential,
                                                                      ULONG ulAttribute,
                                                                      void* pBuffer)
{
  return schannel_QueryCredentialsAttributesW(phCredential, ulAttribute, pBuffer);
}

static SECURITY_STATUS SEC_ENTRY schannel_AcquireCredentialsHandleW(
    SEC_WCHAR* pszPrincipal, SEC_WCHAR* pszPackage, ULONG fCredentialUse, void* pvLogonID,
    void* pAuthData, SEC_GET_KEY_FN pGetKeyFn, void* pvGetKeyArgument, PCredHandle phCredential,
    PTimeStamp ptsExpiry)
{
  SCHANNEL_CREDENTIALS* credentials = NULL;

  if (fCredentialUse == SECPKG_CRED_OUTBOUND)
  {
    SCHANNEL_CRED* cred = NULL;
    credentials = schannel_CredentialsNew();
    credentials->fCredentialUse = fCredentialUse;
    cred = (SCHANNEL_CRED*)pAuthData;

    if (cred)
    {
      CopyMemory(&credentials->cred, cred, sizeof(SCHANNEL_CRED));
    }

    sspi_SecureHandleSetLowerPointer(phCredential, (void*)credentials);
    sspi_SecureHandleSetUpperPointer(phCredential, (void*)SCHANNEL_PACKAGE_NAME);
    return SEC_E_OK;
  }
  else if (fCredentialUse == SECPKG_CRED_INBOUND)
  {
    credentials = schannel_CredentialsNew();
    credentials->fCredentialUse = fCredentialUse;
    sspi_SecureHandleSetLowerPointer(phCredential, (void*)credentials);
    sspi_SecureHandleSetUpperPointer(phCredential, (void*)SCHANNEL_PACKAGE_NAME);
    return SEC_E_OK;
  }

  return SEC_E_OK;
}

static SECURITY_STATUS SEC_ENTRY schannel_AcquireCredentialsHandleA(
    SEC_CHAR* pszPrincipal, SEC_CHAR* pszPackage, ULONG fCredentialUse, void* pvLogonID,
    void* pAuthData, SEC_GET_KEY_FN pGetKeyFn, void* pvGetKeyArgument, PCredHandle phCredential,
    PTimeStamp ptsExpiry)
{
  SECURITY_STATUS status = 0;
  SEC_WCHAR* pszPrincipalW = NULL;
  SEC_WCHAR* pszPackageW = NULL;
  if (pszPrincipal)
    pszPrincipalW = ConvertUtf8ToWCharAlloc(pszPrincipal, NULL);
  if (pszPackage)
    pszPackageW = ConvertUtf8ToWCharAlloc(pszPackage, NULL);

  status = schannel_AcquireCredentialsHandleW(pszPrincipalW, pszPackageW, fCredentialUse,
                                              pvLogonID, pAuthData, pGetKeyFn, pvGetKeyArgument,
                                              phCredential, ptsExpiry);
  free(pszPrincipalW);
  free(pszPackageW);
  return status;
}

static SECURITY_STATUS SEC_ENTRY schannel_FreeCredentialsHandle(PCredHandle phCredential)
{
  SCHANNEL_CREDENTIALS* credentials = NULL;

  if (!phCredential)
    return SEC_E_INVALID_HANDLE;

  credentials = (SCHANNEL_CREDENTIALS*)sspi_SecureHandleGetLowerPointer(phCredential);

  if (!credentials)
    return SEC_E_INVALID_HANDLE;

  schannel_CredentialsFree(credentials);
  return SEC_E_OK;
}

static SECURITY_STATUS SEC_ENTRY schannel_InitializeSecurityContextW(
    PCredHandle phCredential, PCtxtHandle phContext, SEC_WCHAR* pszTargetName, ULONG fContextReq,
    ULONG Reserved1, ULONG TargetDataRep, PSecBufferDesc pInput, ULONG Reserved2,
    PCtxtHandle phNewContext, PSecBufferDesc pOutput, PULONG pfContextAttr, PTimeStamp ptsExpiry)
{
  SECURITY_STATUS status = 0;
  SCHANNEL_CONTEXT* context = NULL;
  SCHANNEL_CREDENTIALS* credentials = NULL;

  /* behave like windows SSPIs that don't want empty context */
  if (phContext && !phContext->dwLower && !phContext->dwUpper)
    return SEC_E_INVALID_HANDLE;

  context = sspi_SecureHandleGetLowerPointer(phContext);

  if (!context)
  {
    context = schannel_ContextNew();

    if (!context)
      return SEC_E_INSUFFICIENT_MEMORY;

    credentials = (SCHANNEL_CREDENTIALS*)sspi_SecureHandleGetLowerPointer(phCredential);
    context->server = FALSE;
    CopyMemory(&context->cred, &credentials->cred, sizeof(SCHANNEL_CRED));
    sspi_SecureHandleSetLowerPointer(phNewContext, context);
    sspi_SecureHandleSetUpperPointer(phNewContext, (void*)SCHANNEL_PACKAGE_NAME);
    schannel_openssl_client_init(context->openssl);
  }

  status = schannel_openssl_client_process_tokens(context->openssl, pInput, pOutput);
  return status;
}

static SECURITY_STATUS SEC_ENTRY schannel_InitializeSecurityContextA(
    PCredHandle phCredential, PCtxtHandle phContext, SEC_CHAR* pszTargetName, ULONG fContextReq,
    ULONG Reserved1, ULONG TargetDataRep, PSecBufferDesc pInput, ULONG Reserved2,
    PCtxtHandle phNewContext, PSecBufferDesc pOutput, PULONG pfContextAttr, PTimeStamp ptsExpiry)
{
  SECURITY_STATUS status = 0;
  SEC_WCHAR* pszTargetNameW = NULL;

  if (pszTargetName != NULL)
  {
    pszTargetNameW = ConvertUtf8ToWCharAlloc(pszTargetName, NULL);
    if (!pszTargetNameW)
      return SEC_E_INSUFFICIENT_MEMORY;
  }

  status = schannel_InitializeSecurityContextW(
      phCredential, phContext, pszTargetNameW, fContextReq, Reserved1, TargetDataRep, pInput,
      Reserved2, phNewContext, pOutput, pfContextAttr, ptsExpiry);
  free(pszTargetNameW);
  return status;
}

static SECURITY_STATUS SEC_ENTRY schannel_AcceptSecurityContext(
    PCredHandle phCredential, PCtxtHandle phContext, PSecBufferDesc pInput, ULONG fContextReq,
    ULONG TargetDataRep, PCtxtHandle phNewContext, PSecBufferDesc pOutput, PULONG pfContextAttr,
    PTimeStamp ptsTimeStamp)
{
  SECURITY_STATUS status = 0;
  SCHANNEL_CONTEXT* context = NULL;

  /* behave like windows SSPIs that don't want empty context */
  if (phContext && !phContext->dwLower && !phContext->dwUpper)
    return SEC_E_INVALID_HANDLE;

  context = (SCHANNEL_CONTEXT*)sspi_SecureHandleGetLowerPointer(phContext);

  if (!context)
  {
    context = schannel_ContextNew();

    if (!context)
      return SEC_E_INSUFFICIENT_MEMORY;

    context->server = TRUE;
    sspi_SecureHandleSetLowerPointer(phNewContext, context);
    sspi_SecureHandleSetUpperPointer(phNewContext, (void*)SCHANNEL_PACKAGE_NAME);
    schannel_openssl_server_init(context->openssl);
  }

  status = schannel_openssl_server_process_tokens(context->openssl, pInput, pOutput);
  return status;
}

static SECURITY_STATUS SEC_ENTRY schannel_DeleteSecurityContext(PCtxtHandle phContext)
{
  SCHANNEL_CONTEXT* context = NULL;
  context = (SCHANNEL_CONTEXT*)sspi_SecureHandleGetLowerPointer(phContext);

  if (!context)
    return SEC_E_INVALID_HANDLE;

  schannel_ContextFree(context);
  return SEC_E_OK;
}

static SECURITY_STATUS SEC_ENTRY schannel_QueryContextAttributes(PCtxtHandle phContext,
                                                                 ULONG ulAttribute, void* pBuffer)
{
  if (!phContext)
    return SEC_E_INVALID_HANDLE;

  if (!pBuffer)
    return SEC_E_INSUFFICIENT_MEMORY;

  if (ulAttribute == SECPKG_ATTR_SIZES)
  {
    SecPkgContext_Sizes* Sizes = (SecPkgContext_Sizes*)pBuffer;
    Sizes->cbMaxToken = 0x6000;
    Sizes->cbMaxSignature = 16;
    Sizes->cbBlockSize = 0;
    Sizes->cbSecurityTrailer = 16;
    return SEC_E_OK;
  }
  else if (ulAttribute == SECPKG_ATTR_STREAM_SIZES)
  {
    SecPkgContext_StreamSizes* StreamSizes = (SecPkgContext_StreamSizes*)pBuffer;
    StreamSizes->cbHeader = 5;
    StreamSizes->cbTrailer = 36;
    StreamSizes->cbMaximumMessage = 0x4000;
    StreamSizes->cBuffers = 4;
    StreamSizes->cbBlockSize = 16;
    return SEC_E_OK;
  }

  WLog_ERR(TAG, "TODO: Implement ulAttribute=%08" PRIx32, ulAttribute);
  return SEC_E_UNSUPPORTED_FUNCTION;
}

static SECURITY_STATUS SEC_ENTRY schannel_MakeSignature(PCtxtHandle phContext, ULONG fQOP,
                                                        PSecBufferDesc pMessage, ULONG MessageSeqNo)
{
  return SEC_E_OK;
}

static SECURITY_STATUS SEC_ENTRY schannel_VerifySignature(PCtxtHandle phContext,
                                                          PSecBufferDesc pMessage,
                                                          ULONG MessageSeqNo, ULONG* pfQOP)
{
  return SEC_E_OK;
}

static SECURITY_STATUS SEC_ENTRY schannel_EncryptMessage(PCtxtHandle phContext, ULONG fQOP,
                                                         PSecBufferDesc pMessage,
                                                         ULONG MessageSeqNo)
{
  SECURITY_STATUS status = 0;
  SCHANNEL_CONTEXT* context = NULL;
  context = (SCHANNEL_CONTEXT*)sspi_SecureHandleGetLowerPointer(phContext);

  if (!context)
    return SEC_E_INVALID_HANDLE;

  status = schannel_openssl_encrypt_message(context->openssl, pMessage);
  return status;
}

static SECURITY_STATUS SEC_ENTRY schannel_DecryptMessage(PCtxtHandle phContext,
                                                         PSecBufferDesc pMessage,
                                                         ULONG MessageSeqNo, ULONG* pfQOP)
{
  SECURITY_STATUS status = 0;
  SCHANNEL_CONTEXT* context = NULL;
  context = (SCHANNEL_CONTEXT*)sspi_SecureHandleGetLowerPointer(phContext);

  if (!context)
    return SEC_E_INVALID_HANDLE;

  status = schannel_openssl_decrypt_message(context->openssl, pMessage);
  return status;
}

const SecurityFunctionTableA SCHANNEL_SecurityFunctionTableA = {
  3,                                    /* dwVersion */
  NULL,                                 /* EnumerateSecurityPackages */
  schannel_QueryCredentialsAttributesA, /* QueryCredentialsAttributes */
  schannel_AcquireCredentialsHandleA,   /* AcquireCredentialsHandle */
  schannel_FreeCredentialsHandle,       /* FreeCredentialsHandle */
  NULL,                                 /* Reserved2 */
  schannel_InitializeSecurityContextA,  /* InitializeSecurityContext */
  schannel_AcceptSecurityContext,       /* AcceptSecurityContext */
  NULL,                                 /* CompleteAuthToken */
  schannel_DeleteSecurityContext,       /* DeleteSecurityContext */
  NULL,                                 /* ApplyControlToken */
  schannel_QueryContextAttributes,      /* QueryContextAttributes */
  NULL,                                 /* ImpersonateSecurityContext */
  NULL,                                 /* RevertSecurityContext */
  schannel_MakeSignature,               /* MakeSignature */
  schannel_VerifySignature,             /* VerifySignature */
  NULL,                                 /* FreeContextBuffer */
  NULL,                                 /* QuerySecurityPackageInfo */
  NULL,                                 /* Reserved3 */
  NULL,                                 /* Reserved4 */
  NULL,                                 /* ExportSecurityContext */
  NULL,                                 /* ImportSecurityContext */
  NULL,                                 /* AddCredentials */
  NULL,                                 /* Reserved8 */
  NULL,                                 /* QuerySecurityContextToken */
  schannel_EncryptMessage,              /* EncryptMessage */
  schannel_DecryptMessage,              /* DecryptMessage */
  NULL,                                 /* SetContextAttributes */
  NULL,                                 /* SetCredentialsAttributes */
};

const SecurityFunctionTableW SCHANNEL_SecurityFunctionTableW = {
  3,                                    /* dwVersion */
  NULL,                                 /* EnumerateSecurityPackages */
  schannel_QueryCredentialsAttributesW, /* QueryCredentialsAttributes */
  schannel_AcquireCredentialsHandleW,   /* AcquireCredentialsHandle */
  schannel_FreeCredentialsHandle,       /* FreeCredentialsHandle */
  NULL,                                 /* Reserved2 */
  schannel_InitializeSecurityContextW,  /* InitializeSecurityContext */
  schannel_AcceptSecurityContext,       /* AcceptSecurityContext */
  NULL,                                 /* CompleteAuthToken */
  schannel_DeleteSecurityContext,       /* DeleteSecurityContext */
  NULL,                                 /* ApplyControlToken */
  schannel_QueryContextAttributes,      /* QueryContextAttributes */
  NULL,                                 /* ImpersonateSecurityContext */
  NULL,                                 /* RevertSecurityContext */
  schannel_MakeSignature,               /* MakeSignature */
  schannel_VerifySignature,             /* VerifySignature */
  NULL,                                 /* FreeContextBuffer */
  NULL,                                 /* QuerySecurityPackageInfo */
  NULL,                                 /* Reserved3 */
  NULL,                                 /* Reserved4 */
  NULL,                                 /* ExportSecurityContext */
  NULL,                                 /* ImportSecurityContext */
  NULL,                                 /* AddCredentials */
  NULL,                                 /* Reserved8 */
  NULL,                                 /* QuerySecurityContextToken */
  schannel_EncryptMessage,              /* EncryptMessage */
  schannel_DecryptMessage,              /* DecryptMessage */
  NULL,                                 /* SetContextAttributes */
  NULL,                                 /* SetCredentialsAttributes */
};

const SecPkgInfoA SCHANNEL_SecPkgInfoA = {
  0x000107B3,                 /* fCapabilities */
  1,                          /* wVersion */
  0x000E,                     /* wRPCID */
  SCHANNEL_CB_MAX_TOKEN,      /* cbMaxToken */
  "Schannel",                 /* Name */
  "Schannel Security Package" /* Comment */
};

static WCHAR SCHANNEL_SecPkgInfoW_NameBuffer[32] = { 0 };
static WCHAR SCHANNEL_SecPkgInfoW_CommentBuffer[32] = { 0 };

const SecPkgInfoW SCHANNEL_SecPkgInfoW = {
  0x000107B3,                        /* fCapabilities */
  1,                                 /* wVersion */
  0x000E,                            /* wRPCID */
  SCHANNEL_CB_MAX_TOKEN,             /* cbMaxToken */
  SCHANNEL_SecPkgInfoW_NameBuffer,   /* Name */
  SCHANNEL_SecPkgInfoW_CommentBuffer /* Comment */
};

BOOL SCHANNEL_init(void)
{
  InitializeConstWCharFromUtf8(SCHANNEL_SecPkgInfoA.Name, SCHANNEL_SecPkgInfoW_NameBuffer,
                               ARRAYSIZE(SCHANNEL_SecPkgInfoW_NameBuffer));
  InitializeConstWCharFromUtf8(SCHANNEL_SecPkgInfoA.Comment, SCHANNEL_SecPkgInfoW_CommentBuffer,
                               ARRAYSIZE(SCHANNEL_SecPkgInfoW_CommentBuffer));
  return TRUE;
}

Coverage Report

Created: 2024-05-20 06:11

Line	Count	Source (jump to first uncovered line)
1		/**
2		* WinPR: Windows Portable Runtime
3		* Schannel Security Package
4		*
5		* Copyright 2012-2014 Marc-Andre Moreau <marcandre.moreau@gmail.com>
6		*
7		* Licensed under the Apache License, Version 2.0 (the "License");
8		* you may not use this file except in compliance with the License.
9		* You may obtain a copy of the License at
10		*
11		* http://www.apache.org/licenses/LICENSE-2.0
12		*
13		* Unless required by applicable law or agreed to in writing, software
14		* distributed under the License is distributed on an "AS IS" BASIS,
15		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16		* See the License for the specific language governing permissions and
17		* limitations under the License.
18		*/
19
20		#include <winpr/config.h>
21
22		#include <winpr/crt.h>
23		#include <winpr/sspi.h>
24
25		#include "schannel.h"
26
27		#include "../sspi.h"
28		#include "../../log.h"
29
30		static char* SCHANNEL_PACKAGE_NAME = "Schannel";
31
32		#define TAG WINPR_TAG("sspi.Schannel")
33
34		SCHANNEL_CONTEXT* schannel_ContextNew(void)
35	0	{
36	0	SCHANNEL_CONTEXT* context = NULL;
37	0	context = (SCHANNEL_CONTEXT*)calloc(1, sizeof(SCHANNEL_CONTEXT));
38
39	0	if (!context)
40	0	return NULL;
41
42	0	context->openssl = schannel_openssl_new();
43
44	0	if (!context->openssl)
45	0	{
46	0	free(context);
47	0	return NULL;
48	0	}
49
50	0	return context;
51	0	}
52
53		void schannel_ContextFree(SCHANNEL_CONTEXT* context)
54	0	{
55	0	if (!context)
56	0	return;
57
58	0	schannel_openssl_free(context->openssl);
59	0	free(context);
60	0	}
61
62		static SCHANNEL_CREDENTIALS* schannel_CredentialsNew(void)
63	0	{
64	0	SCHANNEL_CREDENTIALS* credentials = NULL;
65	0	credentials = (SCHANNEL_CREDENTIALS*)calloc(1, sizeof(SCHANNEL_CREDENTIALS));
66	0	return credentials;
67	0	}
68
69		static void schannel_CredentialsFree(SCHANNEL_CREDENTIALS* credentials)
70	0	{
71	0	free(credentials);
72	0	}
73
74		static ALG_ID schannel_SupportedAlgs[] = { CALG_AES_128,
75		CALG_AES_256,
76		CALG_RC4,
77		CALG_DES,
78		CALG_3DES,
79		CALG_MD5,
80		CALG_SHA1,
81		CALG_SHA_256,
82		CALG_SHA_384,
83		CALG_SHA_512,
84		CALG_RSA_SIGN,
85		CALG_DH_EPHEM,
86		(ALG_CLASS_KEY_EXCHANGE \| ALG_TYPE_RESERVED7 \|
87		6), /* what is this? */
88		CALG_DSS_SIGN,
89		CALG_ECDSA };
90
91		static SECURITY_STATUS SEC_ENTRY schannel_QueryCredentialsAttributesW(PCredHandle phCredential,
92		ULONG ulAttribute,
93		void* pBuffer)
94	0	{
95	0	if (ulAttribute == SECPKG_ATTR_SUPPORTED_ALGS)
96	0	{
97	0	PSecPkgCred_SupportedAlgs SupportedAlgs = (PSecPkgCred_SupportedAlgs)pBuffer;
98	0	SupportedAlgs->cSupportedAlgs = sizeof(schannel_SupportedAlgs) / sizeof(ALG_ID);
99	0	SupportedAlgs->palgSupportedAlgs = (ALG_ID*)schannel_SupportedAlgs;
100	0	return SEC_E_OK;
101	0	}
102	0	else if (ulAttribute == SECPKG_ATTR_CIPHER_STRENGTHS)
103	0	{
104	0	PSecPkgCred_CipherStrengths CipherStrengths = (PSecPkgCred_CipherStrengths)pBuffer;
105	0	CipherStrengths->dwMinimumCipherStrength = 40;
106	0	CipherStrengths->dwMaximumCipherStrength = 256;
107	0	return SEC_E_OK;
108	0	}
109	0	else if (ulAttribute == SECPKG_ATTR_SUPPORTED_PROTOCOLS)
110	0	{
111	0	PSecPkgCred_SupportedProtocols SupportedProtocols = (PSecPkgCred_SupportedProtocols)pBuffer;
112		/* Observed SupportedProtocols: 0x208A0 */
113	0	SupportedProtocols->grbitProtocol = (SP_PROT_CLIENTS \| SP_PROT_SERVERS);
114	0	return SEC_E_OK;
115	0	}
116
117	0	WLog_ERR(TAG, "TODO: Implement ulAttribute=%08" PRIx32, ulAttribute);
118	0	return SEC_E_UNSUPPORTED_FUNCTION;
119	0	}
120
121		static SECURITY_STATUS SEC_ENTRY schannel_QueryCredentialsAttributesA(PCredHandle phCredential,
122		ULONG ulAttribute,
123		void* pBuffer)
124	0	{
125	0	return schannel_QueryCredentialsAttributesW(phCredential, ulAttribute, pBuffer);
126	0	}
127
128		static SECURITY_STATUS SEC_ENTRY schannel_AcquireCredentialsHandleW(
129		SEC_WCHAR* pszPrincipal, SEC_WCHAR* pszPackage, ULONG fCredentialUse, void* pvLogonID,
130		void* pAuthData, SEC_GET_KEY_FN pGetKeyFn, void* pvGetKeyArgument, PCredHandle phCredential,
131		PTimeStamp ptsExpiry)
132	0	{
133	0	SCHANNEL_CREDENTIALS* credentials = NULL;
134
135	0	if (fCredentialUse == SECPKG_CRED_OUTBOUND)
136	0	{
137	0	SCHANNEL_CRED* cred = NULL;
138	0	credentials = schannel_CredentialsNew();
139	0	credentials->fCredentialUse = fCredentialUse;
140	0	cred = (SCHANNEL_CRED*)pAuthData;
141
142	0	if (cred)
143	0	{
144	0	CopyMemory(&credentials->cred, cred, sizeof(SCHANNEL_CRED));
145	0	}
146
147	0	sspi_SecureHandleSetLowerPointer(phCredential, (void*)credentials);
148	0	sspi_SecureHandleSetUpperPointer(phCredential, (void*)SCHANNEL_PACKAGE_NAME);
149	0	return SEC_E_OK;
150	0	}
151	0	else if (fCredentialUse == SECPKG_CRED_INBOUND)
152	0	{
153	0	credentials = schannel_CredentialsNew();
154	0	credentials->fCredentialUse = fCredentialUse;
155	0	sspi_SecureHandleSetLowerPointer(phCredential, (void*)credentials);
156	0	sspi_SecureHandleSetUpperPointer(phCredential, (void*)SCHANNEL_PACKAGE_NAME);
157	0	return SEC_E_OK;
158	0	}
159
160	0	return SEC_E_OK;
161	0	}
162
163		static SECURITY_STATUS SEC_ENTRY schannel_AcquireCredentialsHandleA(
164		SEC_CHAR* pszPrincipal, SEC_CHAR* pszPackage, ULONG fCredentialUse, void* pvLogonID,
165		void* pAuthData, SEC_GET_KEY_FN pGetKeyFn, void* pvGetKeyArgument, PCredHandle phCredential,
166		PTimeStamp ptsExpiry)
167	0	{
168	0	SECURITY_STATUS status = 0;
169	0	SEC_WCHAR* pszPrincipalW = NULL;
170	0	SEC_WCHAR* pszPackageW = NULL;
171	0	if (pszPrincipal)
172	0	pszPrincipalW = ConvertUtf8ToWCharAlloc(pszPrincipal, NULL);
173	0	if (pszPackage)
174	0	pszPackageW = ConvertUtf8ToWCharAlloc(pszPackage, NULL);
175
176	0	status = schannel_AcquireCredentialsHandleW(pszPrincipalW, pszPackageW, fCredentialUse,
177	0	pvLogonID, pAuthData, pGetKeyFn, pvGetKeyArgument,
178	0	phCredential, ptsExpiry);
179	0	free(pszPrincipalW);
180	0	free(pszPackageW);
181	0	return status;
182	0	}
183
184		static SECURITY_STATUS SEC_ENTRY schannel_FreeCredentialsHandle(PCredHandle phCredential)
185	0	{
186	0	SCHANNEL_CREDENTIALS* credentials = NULL;
187
188	0	if (!phCredential)
189	0	return SEC_E_INVALID_HANDLE;
190
191	0	credentials = (SCHANNEL_CREDENTIALS*)sspi_SecureHandleGetLowerPointer(phCredential);
192
193	0	if (!credentials)
194	0	return SEC_E_INVALID_HANDLE;
195
196	0	schannel_CredentialsFree(credentials);
197	0	return SEC_E_OK;
198	0	}
199
200		static SECURITY_STATUS SEC_ENTRY schannel_InitializeSecurityContextW(
201		PCredHandle phCredential, PCtxtHandle phContext, SEC_WCHAR* pszTargetName, ULONG fContextReq,
202		ULONG Reserved1, ULONG TargetDataRep, PSecBufferDesc pInput, ULONG Reserved2,
203		PCtxtHandle phNewContext, PSecBufferDesc pOutput, PULONG pfContextAttr, PTimeStamp ptsExpiry)
204	0	{
205	0	SECURITY_STATUS status = 0;
206	0	SCHANNEL_CONTEXT* context = NULL;
207	0	SCHANNEL_CREDENTIALS* credentials = NULL;
208
209		/* behave like windows SSPIs that don't want empty context */
210	0	if (phContext && !phContext->dwLower && !phContext->dwUpper)
211	0	return SEC_E_INVALID_HANDLE;
212
213	0	context = sspi_SecureHandleGetLowerPointer(phContext);
214
215	0	if (!context)
216	0	{
217	0	context = schannel_ContextNew();
218
219	0	if (!context)
220	0	return SEC_E_INSUFFICIENT_MEMORY;
221
222	0	credentials = (SCHANNEL_CREDENTIALS*)sspi_SecureHandleGetLowerPointer(phCredential);
223	0	context->server = FALSE;
224	0	CopyMemory(&context->cred, &credentials->cred, sizeof(SCHANNEL_CRED));
225	0	sspi_SecureHandleSetLowerPointer(phNewContext, context);
226	0	sspi_SecureHandleSetUpperPointer(phNewContext, (void*)SCHANNEL_PACKAGE_NAME);
227	0	schannel_openssl_client_init(context->openssl);
228	0	}
229
230	0	status = schannel_openssl_client_process_tokens(context->openssl, pInput, pOutput);
231	0	return status;
232	0	}
233
234		static SECURITY_STATUS SEC_ENTRY schannel_InitializeSecurityContextA(
235		PCredHandle phCredential, PCtxtHandle phContext, SEC_CHAR* pszTargetName, ULONG fContextReq,
236		ULONG Reserved1, ULONG TargetDataRep, PSecBufferDesc pInput, ULONG Reserved2,
237		PCtxtHandle phNewContext, PSecBufferDesc pOutput, PULONG pfContextAttr, PTimeStamp ptsExpiry)
238	0	{
239	0	SECURITY_STATUS status = 0;
240	0	SEC_WCHAR* pszTargetNameW = NULL;
241
242	0	if (pszTargetName != NULL)
243	0	{
244	0	pszTargetNameW = ConvertUtf8ToWCharAlloc(pszTargetName, NULL);
245	0	if (!pszTargetNameW)
246	0	return SEC_E_INSUFFICIENT_MEMORY;
247	0	}
248
249	0	status = schannel_InitializeSecurityContextW(
250	0	phCredential, phContext, pszTargetNameW, fContextReq, Reserved1, TargetDataRep, pInput,
251	0	Reserved2, phNewContext, pOutput, pfContextAttr, ptsExpiry);
252	0	free(pszTargetNameW);
253	0	return status;
254	0	}
255
256		static SECURITY_STATUS SEC_ENTRY schannel_AcceptSecurityContext(
257		PCredHandle phCredential, PCtxtHandle phContext, PSecBufferDesc pInput, ULONG fContextReq,
258		ULONG TargetDataRep, PCtxtHandle phNewContext, PSecBufferDesc pOutput, PULONG pfContextAttr,
259		PTimeStamp ptsTimeStamp)
260	0	{
261	0	SECURITY_STATUS status = 0;
262	0	SCHANNEL_CONTEXT* context = NULL;
263
264		/* behave like windows SSPIs that don't want empty context */
265	0	if (phContext && !phContext->dwLower && !phContext->dwUpper)
266	0	return SEC_E_INVALID_HANDLE;
267
268	0	context = (SCHANNEL_CONTEXT*)sspi_SecureHandleGetLowerPointer(phContext);
269
270	0	if (!context)
271	0	{
272	0	context = schannel_ContextNew();
273
274	0	if (!context)
275	0	return SEC_E_INSUFFICIENT_MEMORY;
276
277	0	context->server = TRUE;
278	0	sspi_SecureHandleSetLowerPointer(phNewContext, context);
279	0	sspi_SecureHandleSetUpperPointer(phNewContext, (void*)SCHANNEL_PACKAGE_NAME);
280	0	schannel_openssl_server_init(context->openssl);
281	0	}
282
283	0	status = schannel_openssl_server_process_tokens(context->openssl, pInput, pOutput);
284	0	return status;
285	0	}
286
287		static SECURITY_STATUS SEC_ENTRY schannel_DeleteSecurityContext(PCtxtHandle phContext)
288	0	{
289	0	SCHANNEL_CONTEXT* context = NULL;
290	0	context = (SCHANNEL_CONTEXT*)sspi_SecureHandleGetLowerPointer(phContext);
291
292	0	if (!context)
293	0	return SEC_E_INVALID_HANDLE;
294
295	0	schannel_ContextFree(context);
296	0	return SEC_E_OK;
297	0	}
298
299		static SECURITY_STATUS SEC_ENTRY schannel_QueryContextAttributes(PCtxtHandle phContext,
300		ULONG ulAttribute, void* pBuffer)
301	0	{
302	0	if (!phContext)
303	0	return SEC_E_INVALID_HANDLE;
304
305	0	if (!pBuffer)
306	0	return SEC_E_INSUFFICIENT_MEMORY;
307
308	0	if (ulAttribute == SECPKG_ATTR_SIZES)
309	0	{
310	0	SecPkgContext_Sizes* Sizes = (SecPkgContext_Sizes*)pBuffer;
311	0	Sizes->cbMaxToken = 0x6000;
312	0	Sizes->cbMaxSignature = 16;
313	0	Sizes->cbBlockSize = 0;
314	0	Sizes->cbSecurityTrailer = 16;
315	0	return SEC_E_OK;
316	0	}
317	0	else if (ulAttribute == SECPKG_ATTR_STREAM_SIZES)
318	0	{
319	0	SecPkgContext_StreamSizes* StreamSizes = (SecPkgContext_StreamSizes*)pBuffer;
320	0	StreamSizes->cbHeader = 5;
321	0	StreamSizes->cbTrailer = 36;
322	0	StreamSizes->cbMaximumMessage = 0x4000;
323	0	StreamSizes->cBuffers = 4;
324	0	StreamSizes->cbBlockSize = 16;
325	0	return SEC_E_OK;
326	0	}
327
328	0	WLog_ERR(TAG, "TODO: Implement ulAttribute=%08" PRIx32, ulAttribute);
329	0	return SEC_E_UNSUPPORTED_FUNCTION;
330	0	}
331
332		static SECURITY_STATUS SEC_ENTRY schannel_MakeSignature(PCtxtHandle phContext, ULONG fQOP,
333		PSecBufferDesc pMessage, ULONG MessageSeqNo)
334	0	{
335	0	return SEC_E_OK;
336	0	}
337
338		static SECURITY_STATUS SEC_ENTRY schannel_VerifySignature(PCtxtHandle phContext,
339		PSecBufferDesc pMessage,
340		ULONG MessageSeqNo, ULONG* pfQOP)
341	0	{
342	0	return SEC_E_OK;
343	0	}
344
345		static SECURITY_STATUS SEC_ENTRY schannel_EncryptMessage(PCtxtHandle phContext, ULONG fQOP,
346		PSecBufferDesc pMessage,
347		ULONG MessageSeqNo)
348	0	{
349	0	SECURITY_STATUS status = 0;
350	0	SCHANNEL_CONTEXT* context = NULL;
351	0	context = (SCHANNEL_CONTEXT*)sspi_SecureHandleGetLowerPointer(phContext);
352
353	0	if (!context)
354	0	return SEC_E_INVALID_HANDLE;
355
356	0	status = schannel_openssl_encrypt_message(context->openssl, pMessage);
357	0	return status;
358	0	}
359
360		static SECURITY_STATUS SEC_ENTRY schannel_DecryptMessage(PCtxtHandle phContext,
361		PSecBufferDesc pMessage,
362		ULONG MessageSeqNo, ULONG* pfQOP)
363	0	{
364	0	SECURITY_STATUS status = 0;
365	0	SCHANNEL_CONTEXT* context = NULL;
366	0	context = (SCHANNEL_CONTEXT*)sspi_SecureHandleGetLowerPointer(phContext);
367
368	0	if (!context)
369	0	return SEC_E_INVALID_HANDLE;
370
371	0	status = schannel_openssl_decrypt_message(context->openssl, pMessage);
372	0	return status;
373	0	}
374
375		const SecurityFunctionTableA SCHANNEL_SecurityFunctionTableA = {
376		3, /* dwVersion */
377		NULL, /* EnumerateSecurityPackages */
378		schannel_QueryCredentialsAttributesA, /* QueryCredentialsAttributes */
379		schannel_AcquireCredentialsHandleA, /* AcquireCredentialsHandle */
380		schannel_FreeCredentialsHandle, /* FreeCredentialsHandle */
381		NULL, /* Reserved2 */
382		schannel_InitializeSecurityContextA, /* InitializeSecurityContext */
383		schannel_AcceptSecurityContext, /* AcceptSecurityContext */
384		NULL, /* CompleteAuthToken */
385		schannel_DeleteSecurityContext, /* DeleteSecurityContext */
386		NULL, /* ApplyControlToken */
387		schannel_QueryContextAttributes, /* QueryContextAttributes */
388		NULL, /* ImpersonateSecurityContext */
389		NULL, /* RevertSecurityContext */
390		schannel_MakeSignature, /* MakeSignature */
391		schannel_VerifySignature, /* VerifySignature */
392		NULL, /* FreeContextBuffer */
393		NULL, /* QuerySecurityPackageInfo */
394		NULL, /* Reserved3 */
395		NULL, /* Reserved4 */
396		NULL, /* ExportSecurityContext */
397		NULL, /* ImportSecurityContext */
398		NULL, /* AddCredentials */
399		NULL, /* Reserved8 */
400		NULL, /* QuerySecurityContextToken */
401		schannel_EncryptMessage, /* EncryptMessage */
402		schannel_DecryptMessage, /* DecryptMessage */
403		NULL, /* SetContextAttributes */
404		NULL, /* SetCredentialsAttributes */
405		};
406
407		const SecurityFunctionTableW SCHANNEL_SecurityFunctionTableW = {
408		3, /* dwVersion */
409		NULL, /* EnumerateSecurityPackages */
410		schannel_QueryCredentialsAttributesW, /* QueryCredentialsAttributes */
411		schannel_AcquireCredentialsHandleW, /* AcquireCredentialsHandle */
412		schannel_FreeCredentialsHandle, /* FreeCredentialsHandle */
413		NULL, /* Reserved2 */
414		schannel_InitializeSecurityContextW, /* InitializeSecurityContext */
415		schannel_AcceptSecurityContext, /* AcceptSecurityContext */
416		NULL, /* CompleteAuthToken */
417		schannel_DeleteSecurityContext, /* DeleteSecurityContext */
418		NULL, /* ApplyControlToken */
419		schannel_QueryContextAttributes, /* QueryContextAttributes */
420		NULL, /* ImpersonateSecurityContext */
421		NULL, /* RevertSecurityContext */
422		schannel_MakeSignature, /* MakeSignature */
423		schannel_VerifySignature, /* VerifySignature */
424		NULL, /* FreeContextBuffer */
425		NULL, /* QuerySecurityPackageInfo */
426		NULL, /* Reserved3 */
427		NULL, /* Reserved4 */
428		NULL, /* ExportSecurityContext */
429		NULL, /* ImportSecurityContext */
430		NULL, /* AddCredentials */
431		NULL, /* Reserved8 */
432		NULL, /* QuerySecurityContextToken */
433		schannel_EncryptMessage, /* EncryptMessage */
434		schannel_DecryptMessage, /* DecryptMessage */
435		NULL, /* SetContextAttributes */
436		NULL, /* SetCredentialsAttributes */
437		};
438
439		const SecPkgInfoA SCHANNEL_SecPkgInfoA = {
440		0x000107B3, /* fCapabilities */
441		1, /* wVersion */
442		0x000E, /* wRPCID */
443		SCHANNEL_CB_MAX_TOKEN, /* cbMaxToken */
444		"Schannel", /* Name */
445		"Schannel Security Package" /* Comment */
446		};
447
448		static WCHAR SCHANNEL_SecPkgInfoW_NameBuffer[32] = { 0 };
449		static WCHAR SCHANNEL_SecPkgInfoW_CommentBuffer[32] = { 0 };
450
451		const SecPkgInfoW SCHANNEL_SecPkgInfoW = {
452		0x000107B3, /* fCapabilities */
453		1, /* wVersion */
454		0x000E, /* wRPCID */
455		SCHANNEL_CB_MAX_TOKEN, /* cbMaxToken */
456		SCHANNEL_SecPkgInfoW_NameBuffer, /* Name */
457		SCHANNEL_SecPkgInfoW_CommentBuffer /* Comment */
458		};
459
460		BOOL SCHANNEL_init(void)
461	0	{
462	0	InitializeConstWCharFromUtf8(SCHANNEL_SecPkgInfoA.Name, SCHANNEL_SecPkgInfoW_NameBuffer,
463	0	ARRAYSIZE(SCHANNEL_SecPkgInfoW_NameBuffer));
464	0	InitializeConstWCharFromUtf8(SCHANNEL_SecPkgInfoA.Comment, SCHANNEL_SecPkgInfoW_CommentBuffer,
465	0	ARRAYSIZE(SCHANNEL_SecPkgInfoW_CommentBuffer));
466	0	return TRUE;
467	0	}