Sweden-Number/dlls/secur32/schannel.c

606 lines
18 KiB
C

/* Copyright (C) 2005 Juan Lang
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*
* This file implements the schannel provider, or, the SSL/TLS implementations.
* FIXME: It should be rather obvious that this file is empty of any
* implementation.
*/
#include "config.h"
#include "wine/port.h"
#include <stdarg.h>
#ifdef SONAME_LIBGNUTLS
#include <gnutls/gnutls.h>
#endif
#include "windef.h"
#include "winbase.h"
#include "sspi.h"
#include "schannel.h"
#include "secur32_priv.h"
#include "wine/debug.h"
#include "wine/library.h"
WINE_DEFAULT_DEBUG_CHANNEL(secur32);
#ifdef SONAME_LIBGNUTLS
static void *libgnutls_handle;
#define MAKE_FUNCPTR(f) static typeof(f) * p##f
MAKE_FUNCPTR(gnutls_certificate_allocate_credentials);
MAKE_FUNCPTR(gnutls_certificate_free_credentials);
MAKE_FUNCPTR(gnutls_global_deinit);
MAKE_FUNCPTR(gnutls_global_init);
MAKE_FUNCPTR(gnutls_global_set_log_function);
MAKE_FUNCPTR(gnutls_global_set_log_level);
#undef MAKE_FUNCPTR
enum schan_handle_type
{
SCHAN_HANDLE_CRED,
SCHAN_HANDLE_FREE
};
struct schan_handle
{
void *object;
enum schan_handle_type type;
};
struct schan_credentials
{
ULONG credential_use;
gnutls_certificate_credentials credentials;
};
static struct schan_handle *schan_handle_table;
static struct schan_handle *schan_free_handles;
static SIZE_T schan_handle_table_size;
static SIZE_T schan_handle_count;
static ULONG_PTR schan_alloc_handle(void *object, enum schan_handle_type type)
{
struct schan_handle *handle;
if (schan_free_handles)
{
/* Use a free handle */
handle = schan_free_handles;
if (handle->type != SCHAN_HANDLE_FREE)
{
ERR("Handle %d(%p) is in the free list, but has type %#x.\n", (handle-schan_handle_table), handle, handle->type);
return -1;
}
schan_free_handles = (struct schan_handle *)handle->object;
handle->object = object;
handle->type = type;
return handle - schan_handle_table;
}
if (!(schan_handle_count < schan_handle_table_size))
{
/* Grow the table */
SIZE_T new_size = schan_handle_table_size + (schan_handle_table_size >> 1);
struct schan_handle *new_table = HeapReAlloc(GetProcessHeap(), 0, schan_handle_table, new_size * sizeof(*schan_handle_table));
if (!new_table)
{
ERR("Failed to grow the handle table\n");
return -1;
}
schan_handle_table = new_table;
schan_handle_table_size = new_size;
}
handle = &schan_handle_table[schan_handle_count++];
handle->object = object;
handle->type = type;
return handle - schan_handle_table;
}
static void *schan_free_handle(ULONG_PTR handle_idx, enum schan_handle_type type)
{
struct schan_handle *handle;
void *object;
if (handle_idx == -1) return NULL;
handle = &schan_handle_table[handle_idx];
if (handle->type != type)
{
ERR("Handle %ld(%p) is not of type %#x\n", handle_idx, handle, type);
return NULL;
}
object = handle->object;
handle->object = schan_free_handles;
handle->type = SCHAN_HANDLE_FREE;
schan_free_handles = handle;
return object;
}
static SECURITY_STATUS schan_QueryCredentialsAttributes(
PCredHandle phCredential, ULONG ulAttribute, const VOID *pBuffer)
{
SECURITY_STATUS ret;
switch (ulAttribute)
{
case SECPKG_ATTR_SUPPORTED_ALGS:
if (pBuffer)
{
/* FIXME: get from CryptoAPI */
FIXME("SECPKG_ATTR_SUPPORTED_ALGS: stub\n");
ret = SEC_E_UNSUPPORTED_FUNCTION;
}
else
ret = SEC_E_INTERNAL_ERROR;
break;
case SECPKG_ATTR_CIPHER_STRENGTHS:
if (pBuffer)
{
SecPkgCred_CipherStrengths *r = (SecPkgCred_CipherStrengths*)pBuffer;
/* FIXME: get from CryptoAPI */
FIXME("SECPKG_ATTR_CIPHER_STRENGTHS: semi-stub\n");
r->dwMinimumCipherStrength = 40;
r->dwMaximumCipherStrength = 168;
ret = SEC_E_OK;
}
else
ret = SEC_E_INTERNAL_ERROR;
break;
case SECPKG_ATTR_SUPPORTED_PROTOCOLS:
if (pBuffer)
{
/* FIXME: get from OpenSSL? */
FIXME("SECPKG_ATTR_SUPPORTED_PROTOCOLS: stub\n");
ret = SEC_E_UNSUPPORTED_FUNCTION;
}
else
ret = SEC_E_INTERNAL_ERROR;
break;
default:
ret = SEC_E_UNSUPPORTED_FUNCTION;
}
return ret;
}
static SECURITY_STATUS SEC_ENTRY schan_QueryCredentialsAttributesA(
PCredHandle phCredential, ULONG ulAttribute, PVOID pBuffer)
{
SECURITY_STATUS ret;
TRACE("(%p, %d, %p)\n", phCredential, ulAttribute, pBuffer);
switch (ulAttribute)
{
case SECPKG_CRED_ATTR_NAMES:
FIXME("SECPKG_CRED_ATTR_NAMES: stub\n");
ret = SEC_E_UNSUPPORTED_FUNCTION;
break;
default:
ret = schan_QueryCredentialsAttributes(phCredential, ulAttribute,
pBuffer);
}
return ret;
}
static SECURITY_STATUS SEC_ENTRY schan_QueryCredentialsAttributesW(
PCredHandle phCredential, ULONG ulAttribute, PVOID pBuffer)
{
SECURITY_STATUS ret;
TRACE("(%p, %d, %p)\n", phCredential, ulAttribute, pBuffer);
switch (ulAttribute)
{
case SECPKG_CRED_ATTR_NAMES:
FIXME("SECPKG_CRED_ATTR_NAMES: stub\n");
ret = SEC_E_UNSUPPORTED_FUNCTION;
break;
default:
ret = schan_QueryCredentialsAttributes(phCredential, ulAttribute,
pBuffer);
}
return ret;
}
static SECURITY_STATUS schan_CheckCreds(const SCHANNEL_CRED *schanCred)
{
SECURITY_STATUS st;
switch (schanCred->dwVersion)
{
case SCH_CRED_V3:
case SCHANNEL_CRED_VERSION:
break;
default:
return SEC_E_INTERNAL_ERROR;
}
if (schanCred->cCreds == 0)
st = SEC_E_NO_CREDENTIALS;
else if (schanCred->cCreds > 1)
st = SEC_E_UNKNOWN_CREDENTIALS;
else
{
DWORD keySpec;
HCRYPTPROV csp;
BOOL ret, freeCSP;
ret = CryptAcquireCertificatePrivateKey(schanCred->paCred[0],
0, /* FIXME: what flags to use? */ NULL,
&csp, &keySpec, &freeCSP);
if (ret)
{
st = SEC_E_OK;
if (freeCSP)
CryptReleaseContext(csp, 0);
}
else
st = SEC_E_UNKNOWN_CREDENTIALS;
}
return st;
}
static SECURITY_STATUS schan_AcquireClientCredentials(const SCHANNEL_CRED *schanCred,
PCredHandle phCredential, PTimeStamp ptsExpiry)
{
SECURITY_STATUS st = SEC_E_OK;
TRACE("schanCred %p, phCredential %p, ptsExpiry %p\n", schanCred, phCredential, ptsExpiry);
if (schanCred)
{
st = schan_CheckCreds(schanCred);
if (st == SEC_E_NO_CREDENTIALS)
st = SEC_E_OK;
}
/* For now, the only thing I'm interested in is the direction of the
* connection, so just store it.
*/
if (st == SEC_E_OK)
{
ULONG_PTR handle;
struct schan_credentials *creds;
creds = HeapAlloc(GetProcessHeap(), 0, sizeof(*creds));
if (!creds) return SEC_E_INSUFFICIENT_MEMORY;
handle = schan_alloc_handle(creds, SCHAN_HANDLE_CRED);
if (handle == -1)
{
HeapFree(GetProcessHeap(), 0, creds);
return SEC_E_INTERNAL_ERROR;
}
creds->credential_use = SECPKG_CRED_OUTBOUND;
pgnutls_certificate_allocate_credentials(&creds->credentials);
phCredential->dwLower = handle;
phCredential->dwUpper = 0;
/* Outbound credentials have no expiry */
if (ptsExpiry)
{
ptsExpiry->LowPart = 0;
ptsExpiry->HighPart = 0;
}
}
return st;
}
static SECURITY_STATUS schan_AcquireServerCredentials(const SCHANNEL_CRED *schanCred,
PCredHandle phCredential, PTimeStamp ptsExpiry)
{
SECURITY_STATUS st;
TRACE("schanCred %p, phCredential %p, ptsExpiry %p\n", schanCred, phCredential, ptsExpiry);
if (!schanCred) return SEC_E_NO_CREDENTIALS;
st = schan_CheckCreds(schanCred);
if (st == SEC_E_OK)
{
ULONG_PTR handle;
struct schan_credentials *creds;
creds = HeapAlloc(GetProcessHeap(), 0, sizeof(*creds));
if (!creds) return SEC_E_INSUFFICIENT_MEMORY;
creds->credential_use = SECPKG_CRED_INBOUND;
handle = schan_alloc_handle(creds, SCHAN_HANDLE_CRED);
if (handle == -1)
{
HeapFree(GetProcessHeap(), 0, creds);
return SEC_E_INTERNAL_ERROR;
}
phCredential->dwLower = handle;
phCredential->dwUpper = 0;
/* FIXME: get expiry from cert */
}
return st;
}
static SECURITY_STATUS schan_AcquireCredentialsHandle(ULONG fCredentialUse,
const SCHANNEL_CRED *schanCred, PCredHandle phCredential, PTimeStamp ptsExpiry)
{
SECURITY_STATUS ret;
if (fCredentialUse == SECPKG_CRED_OUTBOUND)
ret = schan_AcquireClientCredentials(schanCred, phCredential,
ptsExpiry);
else
ret = schan_AcquireServerCredentials(schanCred, phCredential,
ptsExpiry);
return ret;
}
static SECURITY_STATUS SEC_ENTRY schan_AcquireCredentialsHandleA(
SEC_CHAR *pszPrincipal, SEC_CHAR *pszPackage, ULONG fCredentialUse,
PLUID pLogonID, PVOID pAuthData, SEC_GET_KEY_FN pGetKeyFn,
PVOID pGetKeyArgument, PCredHandle phCredential, PTimeStamp ptsExpiry)
{
TRACE("(%s, %s, 0x%08x, %p, %p, %p, %p, %p, %p)\n",
debugstr_a(pszPrincipal), debugstr_a(pszPackage), fCredentialUse,
pLogonID, pAuthData, pGetKeyFn, pGetKeyArgument, phCredential, ptsExpiry);
return schan_AcquireCredentialsHandle(fCredentialUse,
(PSCHANNEL_CRED)pAuthData, phCredential, ptsExpiry);
}
static SECURITY_STATUS SEC_ENTRY schan_AcquireCredentialsHandleW(
SEC_WCHAR *pszPrincipal, SEC_WCHAR *pszPackage, ULONG fCredentialUse,
PLUID pLogonID, PVOID pAuthData, SEC_GET_KEY_FN pGetKeyFn,
PVOID pGetKeyArgument, PCredHandle phCredential, PTimeStamp ptsExpiry)
{
TRACE("(%s, %s, 0x%08x, %p, %p, %p, %p, %p, %p)\n",
debugstr_w(pszPrincipal), debugstr_w(pszPackage), fCredentialUse,
pLogonID, pAuthData, pGetKeyFn, pGetKeyArgument, phCredential, ptsExpiry);
return schan_AcquireCredentialsHandle(fCredentialUse,
(PSCHANNEL_CRED)pAuthData, phCredential, ptsExpiry);
}
static SECURITY_STATUS SEC_ENTRY schan_FreeCredentialsHandle(
PCredHandle phCredential)
{
struct schan_credentials *creds;
TRACE("phCredential %p\n", phCredential);
if (!phCredential) return SEC_E_INVALID_HANDLE;
creds = schan_free_handle(phCredential->dwLower, SCHAN_HANDLE_CRED);
if (!creds) return SEC_E_INVALID_HANDLE;
if (creds->credential_use == SECPKG_CRED_OUTBOUND)
pgnutls_certificate_free_credentials(creds->credentials);
HeapFree(GetProcessHeap(), 0, creds);
return SEC_E_OK;
}
/***********************************************************************
* InitializeSecurityContextA
*/
static SECURITY_STATUS SEC_ENTRY schan_InitializeSecurityContextA(
PCredHandle phCredential, PCtxtHandle phContext, SEC_CHAR *pszTargetName,
ULONG fContextReq, ULONG Reserved1, ULONG TargetDataRep,
PSecBufferDesc pInput, ULONG Reserved2, PCtxtHandle phNewContext,
PSecBufferDesc pOutput, ULONG *pfContextAttr, PTimeStamp ptsExpiry)
{
SECURITY_STATUS ret;
TRACE("%p %p %s %d %d %d %p %d %p %p %p %p\n", phCredential, phContext,
debugstr_a(pszTargetName), fContextReq, Reserved1, TargetDataRep, pInput,
Reserved1, phNewContext, pOutput, pfContextAttr, ptsExpiry);
if(phCredential)
{
FIXME("stub\n");
ret = SEC_E_UNSUPPORTED_FUNCTION;
}
else
{
ret = SEC_E_INVALID_HANDLE;
}
return ret;
}
/***********************************************************************
* InitializeSecurityContextW
*/
static SECURITY_STATUS SEC_ENTRY schan_InitializeSecurityContextW(
PCredHandle phCredential, PCtxtHandle phContext, SEC_WCHAR *pszTargetName,
ULONG fContextReq, ULONG Reserved1, ULONG TargetDataRep,
PSecBufferDesc pInput,ULONG Reserved2, PCtxtHandle phNewContext,
PSecBufferDesc pOutput, ULONG *pfContextAttr, PTimeStamp ptsExpiry)
{
SECURITY_STATUS ret;
TRACE("%p %p %s %d %d %d %p %d %p %p %p %p\n", phCredential, phContext,
debugstr_w(pszTargetName), fContextReq, Reserved1, TargetDataRep, pInput,
Reserved1, phNewContext, pOutput, pfContextAttr, ptsExpiry);
if (phCredential)
{
FIXME("stub\n");
ret = SEC_E_UNSUPPORTED_FUNCTION;
}
else
{
ret = SEC_E_INVALID_HANDLE;
}
return ret;
}
static void schan_gnutls_log(int level, const char *msg)
{
TRACE("<%d> %s", level, msg);
}
static const SecurityFunctionTableA schanTableA = {
1,
NULL, /* EnumerateSecurityPackagesA */
schan_QueryCredentialsAttributesA,
schan_AcquireCredentialsHandleA,
schan_FreeCredentialsHandle,
NULL, /* Reserved2 */
schan_InitializeSecurityContextA,
NULL, /* AcceptSecurityContext */
NULL, /* CompleteAuthToken */
NULL, /* DeleteSecurityContext */
NULL, /* ApplyControlToken */
NULL, /* QueryContextAttributesA */
NULL, /* ImpersonateSecurityContext */
NULL, /* RevertSecurityContext */
NULL, /* MakeSignature */
NULL, /* VerifySignature */
FreeContextBuffer,
NULL, /* QuerySecurityPackageInfoA */
NULL, /* Reserved3 */
NULL, /* Reserved4 */
NULL, /* ExportSecurityContext */
NULL, /* ImportSecurityContextA */
NULL, /* AddCredentialsA */
NULL, /* Reserved8 */
NULL, /* QuerySecurityContextToken */
NULL, /* EncryptMessage */
NULL, /* DecryptMessage */
NULL, /* SetContextAttributesA */
};
static const SecurityFunctionTableW schanTableW = {
1,
NULL, /* EnumerateSecurityPackagesW */
schan_QueryCredentialsAttributesW,
schan_AcquireCredentialsHandleW,
schan_FreeCredentialsHandle,
NULL, /* Reserved2 */
schan_InitializeSecurityContextW,
NULL, /* AcceptSecurityContext */
NULL, /* CompleteAuthToken */
NULL, /* DeleteSecurityContext */
NULL, /* ApplyControlToken */
NULL, /* QueryContextAttributesW */
NULL, /* ImpersonateSecurityContext */
NULL, /* RevertSecurityContext */
NULL, /* MakeSignature */
NULL, /* VerifySignature */
FreeContextBuffer,
NULL, /* QuerySecurityPackageInfoW */
NULL, /* Reserved3 */
NULL, /* Reserved4 */
NULL, /* ExportSecurityContext */
NULL, /* ImportSecurityContextW */
NULL, /* AddCredentialsW */
NULL, /* Reserved8 */
NULL, /* QuerySecurityContextToken */
NULL, /* EncryptMessage */
NULL, /* DecryptMessage */
NULL, /* SetContextAttributesW */
};
static const WCHAR schannelComment[] = { 'S','c','h','a','n','n','e','l',' ',
'S','e','c','u','r','i','t','y',' ','P','a','c','k','a','g','e',0 };
static const WCHAR schannelDllName[] = { 's','c','h','a','n','n','e','l','.','d','l','l',0 };
void SECUR32_initSchannelSP(void)
{
SecureProvider *provider;
libgnutls_handle = wine_dlopen(SONAME_LIBGNUTLS, RTLD_NOW, NULL, 0);
if (!libgnutls_handle)
{
WARN("Failed to load libgnutls.\n");
return;
}
#define LOAD_FUNCPTR(f) \
if (!(p##f = wine_dlsym(libgnutls_handle, #f, NULL, 0))) \
{ \
ERR("Failed to load %s\n", #f); \
wine_dlclose(libgnutls_handle, NULL, 0); \
libgnutls_handle = NULL; \
return; \
}
LOAD_FUNCPTR(gnutls_certificate_allocate_credentials)
LOAD_FUNCPTR(gnutls_certificate_free_credentials)
LOAD_FUNCPTR(gnutls_global_deinit)
LOAD_FUNCPTR(gnutls_global_init)
LOAD_FUNCPTR(gnutls_global_set_log_function)
LOAD_FUNCPTR(gnutls_global_set_log_level)
#undef LOAD_FUNCPTR
provider = SECUR32_addProvider(&schanTableA, &schanTableW, schannelDllName);
if (provider)
{
/* This is what Windows reports. This shouldn't break any applications
* even though the functions are missing, because the wrapper will
* return SEC_E_UNSUPPORTED_FUNCTION if our function is NULL.
*/
static const long caps =
SECPKG_FLAG_INTEGRITY |
SECPKG_FLAG_PRIVACY |
SECPKG_FLAG_CONNECTION |
SECPKG_FLAG_MULTI_REQUIRED |
SECPKG_FLAG_EXTENDED_ERROR |
SECPKG_FLAG_IMPERSONATION |
SECPKG_FLAG_ACCEPT_WIN32_NAME |
SECPKG_FLAG_STREAM;
static const short version = 1;
static const long maxToken = 16384;
SEC_WCHAR *uniSPName = (SEC_WCHAR *)UNISP_NAME_W,
*schannel = (SEC_WCHAR *)SCHANNEL_NAME_W;
const SecPkgInfoW info[] = {
{ caps, version, UNISP_RPC_ID, maxToken, uniSPName, uniSPName },
{ caps, version, UNISP_RPC_ID, maxToken, schannel,
(SEC_WCHAR *)schannelComment },
};
SECUR32_addPackages(provider, sizeof(info) / sizeof(info[0]), NULL,
info);
schan_handle_table = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, 64 * sizeof(*schan_handle_table));
schan_handle_table_size = 64;
pgnutls_global_init();
if (TRACE_ON(secur32))
{
pgnutls_global_set_log_level(4);
pgnutls_global_set_log_function(schan_gnutls_log);
}
}
}
void SECUR32_deinitSchannelSP(void)
{
pgnutls_global_deinit();
if (libgnutls_handle) wine_dlclose(libgnutls_handle, NULL, 0);
}
#else /* SONAME_LIBGNUTLS */
void SECUR32_initSchannelSP(void) {}
void SECUR32_deinitSchannelSP(void) {}
#endif /* SONAME_LIBGNUTLS */