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Sweden-Number/dlls/secur32/secur32.c

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Added a secur32.dll that loads other SSP DLLs and forwards calls to them.
2004-03-02 05:57:35 +01:00
/* Copyright (C) 2004 Juan Lang
*
* This file implements loading of SSP DLLs.
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "winnls.h"
#include "winreg.h"
#include "winternl.h"
#include "shlwapi.h"
#include "sspi.h"
#include "secur32_priv.h"
#include "thunks.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(secur32);
/**
* Type definitions
*/
typedef struct _SecurePackageTable
{
DWORD numPackages;
DWORD numAllocated;
SecurePackage table[1];
} SecurePackageTable;
typedef struct _SecureProviderTable
{
DWORD numProviders;
DWORD numAllocated;
SecureProvider table[1];
} SecureProviderTable;
/**
* Prototypes
*/
/* Makes sure table has space for at least howBig entries. If table is NULL,
* returns a newly allocated table. Otherwise returns the address of the
* modified table, which may not be the same was when called.
*/
static SecurePackageTable *_resizePackageTable(SecurePackageTable *table,
DWORD howBig);
/* Makes sure table has space for at least howBig entries. If table is NULL,
* returns a newly allocated table. Otherwise returns the address of the
* modified table, which may not be the same was when called.
*/
static SecureProviderTable *_resizeProviderTable(SecureProviderTable *table,
DWORD howBig);
/* Tries to load moduleName as a provider. If successful, enumerates what
* packages it can and adds them to the package and provider tables. Resizes
* tables as necessary.
*/
static void _tryLoadProvider(PWSTR moduleName);
/* Initialization: read securityproviders value and attempt to open each dll
* there. For each DLL, call _tryLoadProvider to see if it's really an SSP.
* Two undocumented functions, AddSecurityPackage(A/W) and
* DeleteSecurityPackage(A/W), seem suspiciously like they'd register or
* unregister a dll, but I'm not sure.
*/
static void SECUR32_initializeProviders(void);
/* Frees all loaded packages and providers */
static void SECUR32_freeProviders(void);
/**
* Globals
*/
static CRITICAL_SECTION cs;
static SecurePackageTable *packageTable = NULL;
static SecureProviderTable *providerTable = NULL;
static SecurityFunctionTableA securityFunctionTableA = {
SECURITY_SUPPORT_PROVIDER_INTERFACE_VERSION_2,
EnumerateSecurityPackagesA,
QueryCredentialsAttributesA,
AcquireCredentialsHandleA,
FreeCredentialsHandle,
NULL, /* Reserved2 */
InitializeSecurityContextA,
AcceptSecurityContext,
CompleteAuthToken,
DeleteSecurityContext,
ApplyControlToken,
QueryContextAttributesA,
ImpersonateSecurityContext,
RevertSecurityContext,
MakeSignature,
VerifySignature,
FreeContextBuffer,
QuerySecurityPackageInfoA,
NULL, /* Reserved3 */
NULL, /* Reserved4 */
ExportSecurityContext,
ImportSecurityContextA,
AddCredentialsA,
NULL, /* Reserved8 */
QuerySecurityContextToken,
EncryptMessage,
DecryptMessage,
SetContextAttributesA
};
static SecurityFunctionTableW securityFunctionTableW = {
SECURITY_SUPPORT_PROVIDER_INTERFACE_VERSION_2,
EnumerateSecurityPackagesW,
QueryCredentialsAttributesW,
AcquireCredentialsHandleW,
FreeCredentialsHandle,
NULL, /* Reserved2 */
InitializeSecurityContextW,
AcceptSecurityContext,
CompleteAuthToken,
DeleteSecurityContext,
ApplyControlToken,
QueryContextAttributesW,
ImpersonateSecurityContext,
RevertSecurityContext,
MakeSignature,
VerifySignature,
FreeContextBuffer,
QuerySecurityPackageInfoW,
NULL, /* Reserved3 */
NULL, /* Reserved4 */
ExportSecurityContext,
ImportSecurityContextW,
AddCredentialsW,
NULL, /* Reserved8 */
QuerySecurityContextToken,
EncryptMessage,
DecryptMessage,
SetContextAttributesW
};
PSecurityFunctionTableA SEC_ENTRY InitSecurityInterfaceA(void)
{
return &securityFunctionTableA;
}
PSecurityFunctionTableW SEC_ENTRY InitSecurityInterfaceW(void)
{
return &securityFunctionTableW;
}
/* Allocates or resizes table to have space for at least howBig packages.
* Uses Heap functions, because needs to be able to reallocate.
*/
static SecurePackageTable *_resizePackageTable(SecurePackageTable *table,
DWORD howBig)
{
SecurePackageTable *ret;
EnterCriticalSection(&cs);
if (table)
{
if (table->numAllocated < howBig)
{
ret = (SecurePackageTable *)HeapReAlloc(GetProcessHeap(), 0, table,
sizeof(SecurePackageTable) + (howBig - 1) * sizeof(SecurePackage));
if (ret)
{
ret->numAllocated = howBig;
table = ret;
}
}
else
ret = table;
}
else
{
DWORD numAllocated = (howBig > 1 ? howBig : 1);
ret = (SecurePackageTable *)HeapAlloc(GetProcessHeap(), 0,
sizeof(SecurePackageTable) +
(numAllocated - 1) * sizeof(SecurePackage));
if (ret)
{
ret->numAllocated = numAllocated;
ret->numPackages = 0;
}
}
LeaveCriticalSection(&cs);
return ret;
}
/* Allocates or resizes table to have space for at least howBig providers.
* Uses Heap functions, because needs to be able to reallocate.
*/
static SecureProviderTable *_resizeProviderTable(SecureProviderTable *table,
DWORD howBig)
{
SecureProviderTable *ret;
EnterCriticalSection(&cs);
if (table)
{
if (table->numAllocated < howBig)
{
ret = (SecureProviderTable *)HeapReAlloc(GetProcessHeap(), 0, table,
sizeof(SecureProviderTable) +
(howBig - 1) * sizeof(SecureProvider));
if (ret)
{
ret->numAllocated = howBig;
table = ret;
}
}
else
ret = table;
}
else
{
DWORD numAllocated = (howBig > 1 ? howBig : 1);
ret = (SecureProviderTable *)HeapAlloc(GetProcessHeap(), 0,
sizeof(SecureProviderTable) +
(numAllocated - 1) * sizeof(SecureProvider));
if (ret)
{
ret->numAllocated = numAllocated;
ret->numProviders = 0;
}
}
LeaveCriticalSection(&cs);
return ret;
}
PWSTR SECUR32_strdupW(PCWSTR str)
{
PWSTR ret;
if (str)
{
ret = (PWSTR)SECUR32_ALLOC((lstrlenW(str) + 1) * sizeof(WCHAR));
if (ret)
lstrcpyW(ret, str);
}
else
ret = NULL;
return ret;
}
PWSTR SECUR32_AllocWideFromMultiByte(PCSTR str)
{
PWSTR ret;
if (str)
{
int charsNeeded = MultiByteToWideChar(CP_ACP, 0, str, -1, NULL, 0);
if (charsNeeded)
{
ret = (PWSTR)SECUR32_ALLOC(charsNeeded * sizeof(WCHAR));
if (ret)
MultiByteToWideChar(CP_ACP, 0, str, -1, ret, charsNeeded);
}
else
ret = NULL;
}
else
ret = NULL;
return ret;
}
PSTR SECUR32_AllocMultiByteFromWide(PCWSTR str)
{
PSTR ret;
if (str)
{
int charsNeeded = WideCharToMultiByte(CP_ACP, 0, str, -1, NULL, 0,
NULL, NULL);
if (charsNeeded)
{
ret = (PSTR)SECUR32_ALLOC(charsNeeded);
if (ret)
WideCharToMultiByte(CP_ACP, 0, str, -1, ret, charsNeeded,
NULL, NULL);
}
else
ret = NULL;
}
else
ret = NULL;
return ret;
}
static void _makeFnTableA(PSecurityFunctionTableA fnTableA,
const PSecurityFunctionTableA inFnTableA,
const PSecurityFunctionTableW inFnTableW)
{
if (fnTableA)
{
if (inFnTableA)
{
/* The size of the version 1 table is based on platform sdk's
* sspi.h, though the sample ssp also provided with platform sdk
* implies only functions through QuerySecurityPackageInfoA are
* implemented (yikes)
*/
size_t tableSize = inFnTableA->dwVersion == 1 ?
(LPBYTE)&inFnTableA->SetContextAttributesA -
(LPBYTE)inFnTableA : sizeof(SecurityFunctionTableA);
memcpy(fnTableA, inFnTableA, tableSize);
/* override this, since we can do it internally anyway */
fnTableA->QuerySecurityPackageInfoA =
QuerySecurityPackageInfoA;
}
else if (inFnTableW)
{
/* functions with thunks */
if (inFnTableW->AcquireCredentialsHandleW)
fnTableA->AcquireCredentialsHandleA =
thunk_AcquireCredentialsHandleA;
if (inFnTableW->InitializeSecurityContextW)
fnTableA->InitializeSecurityContextA =
thunk_InitializeSecurityContextA;
if (inFnTableW->ImportSecurityContextW)
fnTableA->ImportSecurityContextA =
thunk_ImportSecurityContextA;
if (inFnTableW->AddCredentialsW)
fnTableA->AddCredentialsA =
thunk_AddCredentialsA;
if (inFnTableW->QueryCredentialsAttributesW)
fnTableA->QueryCredentialsAttributesA =
thunk_QueryCredentialsAttributesA;
if (inFnTableW->QueryContextAttributesW)
fnTableA->QueryContextAttributesA =
thunk_QueryContextAttributesA;
if (inFnTableW->SetContextAttributesW)
fnTableA->SetContextAttributesA =
thunk_SetContextAttributesA;
/* this can't be thunked, there's no extra param to know which
* package to forward to */
fnTableA->EnumerateSecurityPackagesA = NULL;
/* functions with no thunks needed */
fnTableA->AcceptSecurityContext = inFnTableW->AcceptSecurityContext;
fnTableA->CompleteAuthToken = inFnTableW->CompleteAuthToken;
fnTableA->DeleteSecurityContext = inFnTableW->DeleteSecurityContext;
fnTableA->ImpersonateSecurityContext =
inFnTableW->ImpersonateSecurityContext;
fnTableA->RevertSecurityContext = inFnTableW->RevertSecurityContext;
fnTableA->MakeSignature = inFnTableW->MakeSignature;
fnTableA->VerifySignature = inFnTableW->VerifySignature;
fnTableA->FreeContextBuffer = inFnTableW->FreeContextBuffer;
fnTableA->QuerySecurityPackageInfoA =
QuerySecurityPackageInfoA;
fnTableA->ExportSecurityContext =
inFnTableW->ExportSecurityContext;
fnTableA->QuerySecurityContextToken =
inFnTableW->QuerySecurityContextToken;
fnTableA->EncryptMessage = inFnTableW->EncryptMessage;
fnTableA->DecryptMessage = inFnTableW->DecryptMessage;
}
}
}
static void _makeFnTableW(PSecurityFunctionTableW fnTableW,
const PSecurityFunctionTableA inFnTableA,
const PSecurityFunctionTableW inFnTableW)
{
if (fnTableW)
{
if (inFnTableW)
{
/* The size of the version 1 table is based on platform sdk's
* sspi.h, though the sample ssp also provided with platform sdk
* implies only functions through QuerySecurityPackageInfoA are
* implemented (yikes)
*/
size_t tableSize = inFnTableW->dwVersion == 1 ?
(LPBYTE)&inFnTableW->SetContextAttributesW -
(LPBYTE)inFnTableW : sizeof(SecurityFunctionTableW);
memcpy(fnTableW, inFnTableW, tableSize);
/* override this, since we can do it internally anyway */
fnTableW->QuerySecurityPackageInfoW =
QuerySecurityPackageInfoW;
}
else if (inFnTableA)
{
/* functions with thunks */
if (inFnTableA->AcquireCredentialsHandleA)
fnTableW->AcquireCredentialsHandleW =
thunk_AcquireCredentialsHandleW;
if (inFnTableA->InitializeSecurityContextA)
fnTableW->InitializeSecurityContextW =
thunk_InitializeSecurityContextW;
if (inFnTableA->ImportSecurityContextA)
fnTableW->ImportSecurityContextW =
thunk_ImportSecurityContextW;
if (inFnTableA->AddCredentialsA)
fnTableW->AddCredentialsW =
thunk_AddCredentialsW;
if (inFnTableA->QueryCredentialsAttributesA)
fnTableW->QueryCredentialsAttributesW =
thunk_QueryCredentialsAttributesW;
if (inFnTableA->QueryContextAttributesA)
fnTableW->QueryContextAttributesW =
thunk_QueryContextAttributesW;
if (inFnTableA->SetContextAttributesA)
fnTableW->SetContextAttributesW =
thunk_SetContextAttributesW;
/* this can't be thunked, there's no extra param to know which
* package to forward to */
fnTableW->EnumerateSecurityPackagesW = NULL;
/* functions with no thunks needed */
fnTableW->AcceptSecurityContext = inFnTableA->AcceptSecurityContext;
fnTableW->CompleteAuthToken = inFnTableA->CompleteAuthToken;
fnTableW->DeleteSecurityContext = inFnTableA->DeleteSecurityContext;
fnTableW->ImpersonateSecurityContext =
inFnTableA->ImpersonateSecurityContext;
fnTableW->RevertSecurityContext = inFnTableA->RevertSecurityContext;
fnTableW->MakeSignature = inFnTableA->MakeSignature;
fnTableW->VerifySignature = inFnTableA->VerifySignature;
fnTableW->FreeContextBuffer = inFnTableA->FreeContextBuffer;
fnTableW->QuerySecurityPackageInfoW =
QuerySecurityPackageInfoW;
fnTableW->ExportSecurityContext =
inFnTableA->ExportSecurityContext;
fnTableW->QuerySecurityContextToken =
inFnTableA->QuerySecurityContextToken;
fnTableW->EncryptMessage = inFnTableA->EncryptMessage;
fnTableW->DecryptMessage = inFnTableA->DecryptMessage;
}
}
}
static void _copyPackageInfo(PSecPkgInfoW info, PSecPkgInfoA inInfoA,
PSecPkgInfoW inInfoW)
{
if (info && (inInfoA || inInfoW))
{
/* odd, I know, but up until Name and Comment the structures are
* identical
*/
memcpy(info, inInfoW ? inInfoW : (PSecPkgInfoW)inInfoA, sizeof(*info));
if (inInfoW)
{
info->Name = SECUR32_strdupW(inInfoW->Name);
info->Comment = SECUR32_strdupW(inInfoW->Comment);
}
else
{
info->Name = SECUR32_AllocWideFromMultiByte(inInfoA->Name);
info->Comment = SECUR32_AllocWideFromMultiByte(inInfoA->Comment);
}
}
}
static void _tryLoadProvider(PWSTR moduleName)
{
HMODULE lib = LoadLibraryW(moduleName);
if (lib)
{
INIT_SECURITY_INTERFACE_W pInitSecurityInterfaceW =
(INIT_SECURITY_INTERFACE_W)GetProcAddress(lib,
SECURITY_ENTRYPOINT_ANSIW);
INIT_SECURITY_INTERFACE_A pInitSecurityInterfaceA =
(INIT_SECURITY_INTERFACE_A)GetProcAddress(lib,
SECURITY_ENTRYPOINT_ANSIA);
TRACE("loaded %s, InitSecurityInterfaceA is %p, InitSecurityInterfaceW is %p\n",
debugstr_w(moduleName), pInitSecurityInterfaceA,
pInitSecurityInterfaceW);
if (pInitSecurityInterfaceW || pInitSecurityInterfaceA)
{
PSecurityFunctionTableA fnTableA = NULL;
PSecurityFunctionTableW fnTableW = NULL;
ULONG toAdd = 0;
PSecPkgInfoA infoA = NULL;
PSecPkgInfoW infoW = NULL;
SECURITY_STATUS ret = SEC_E_OK;
if (pInitSecurityInterfaceA)
fnTableA = pInitSecurityInterfaceA();
if (pInitSecurityInterfaceW)
fnTableW = pInitSecurityInterfaceW();
if (fnTableW && fnTableW->EnumerateSecurityPackagesW)
ret = fnTableW->EnumerateSecurityPackagesW(&toAdd, &infoW);
else if (fnTableA && fnTableA->EnumerateSecurityPackagesA)
ret = fnTableA->EnumerateSecurityPackagesA(&toAdd, &infoA);
if (ret == SEC_E_OK && toAdd > 0 && (infoW || infoA))
{
providerTable = _resizeProviderTable(providerTable,
providerTable ? providerTable->numProviders + 1 : 1);
packageTable = _resizePackageTable(packageTable,
packageTable ? packageTable->numPackages + toAdd : toAdd);
if (providerTable && packageTable)
{
ULONG i;
SecureProvider *provider =
&providerTable->table[providerTable->numProviders];
EnterCriticalSection(&cs);
provider->moduleName = SECUR32_strdupW(moduleName);
provider->lib = NULL;
for (i = 0; i < toAdd; i++)
{
SecurePackage *package =
&packageTable->table[packageTable->numPackages + i];
package->provider = provider;
_copyPackageInfo(&package->infoW,
infoA ? &infoA[i] : NULL,
infoW ? &infoW[i] : NULL);
}
packageTable->numPackages += toAdd;
providerTable->numProviders++;
LeaveCriticalSection(&cs);
}
if (infoW)
fnTableW->FreeContextBuffer(infoW);
else
fnTableA->FreeContextBuffer(infoA);
}
}
FreeLibrary(lib);
}
else
WARN("failed to load %s\n", debugstr_w(moduleName));
}
static WCHAR securityProvidersKeyW[] = {
'S','Y','S','T','E','M','\\','C','u','r','r','e','n','t','C','o','n','t','r',
'o','l','S','e','t','\\','C','o','n','t','r','o','l','\\','S','e','c','u','r',
'i','t','y','P','r','o','v','i','d','e','r','s','\0'
};
static const WCHAR securityProvidersW[] = {
'S','e','c','u','r','i','t','y','P','r','o','v','i','d','e','r','s',0
};
static void SECUR32_initializeProviders(void)
{
HKEY key;
long apiRet;
TRACE("\n");
InitializeCriticalSection(&cs);
apiRet = RegOpenKeyExW(HKEY_LOCAL_MACHINE, securityProvidersKeyW, 0,
KEY_READ, &key);
if (apiRet == ERROR_SUCCESS)
{
WCHAR securityPkgNames[MAX_PATH]; /* arbitrary len */
DWORD size = sizeof(securityPkgNames) / sizeof(WCHAR), type;
apiRet = RegQueryValueExW(key, securityProvidersW, NULL, &type,
(PBYTE)securityPkgNames, &size);
if (apiRet == ERROR_SUCCESS && type == REG_SZ)
{
WCHAR *ptr;
for (ptr = securityPkgNames;
ptr < (PWSTR)((PBYTE)securityPkgNames + size); )
{
WCHAR *comma;
for (comma = ptr; *comma && *comma != ','; comma++)
;
if (*comma == ',')
*comma = '\0';
for (; *ptr && isspace(*ptr) && ptr < securityPkgNames + size;
ptr++)
;
if (*ptr)
_tryLoadProvider(ptr);
ptr += lstrlenW(ptr) + 1;
}
}
RegCloseKey(key);
}
}
SecurePackage *SECUR32_findPackageW(PWSTR packageName)
{
SecurePackage *ret;
if (packageTable && packageName)
{
DWORD i;
for (i = 0, ret = NULL; !ret && i < packageTable->numPackages; i++)
if (!lstrcmpiW(packageTable->table[i].infoW.Name, packageName))
ret = &packageTable->table[i];
if (ret && ret->provider && !ret->provider->lib)
{
ret->provider->lib = LoadLibraryW(ret->provider->moduleName);
if (ret->provider->lib)
{
INIT_SECURITY_INTERFACE_W pInitSecurityInterfaceW =
(INIT_SECURITY_INTERFACE_W)GetProcAddress(ret->provider->lib,
SECURITY_ENTRYPOINT_ANSIW);
INIT_SECURITY_INTERFACE_A pInitSecurityInterfaceA =
(INIT_SECURITY_INTERFACE_A)GetProcAddress(ret->provider->lib,
SECURITY_ENTRYPOINT_ANSIA);
PSecurityFunctionTableA fnTableA = NULL;
PSecurityFunctionTableW fnTableW = NULL;
if (pInitSecurityInterfaceA)
fnTableA = pInitSecurityInterfaceA();
if (pInitSecurityInterfaceW)
fnTableW = pInitSecurityInterfaceW();
_makeFnTableA(&ret->provider->fnTableA, fnTableA, fnTableW);
_makeFnTableW(&ret->provider->fnTableW, fnTableA, fnTableW);
}
else
ret = NULL;
}
}
else
ret = NULL;
return ret;
}
SecurePackage *SECUR32_findPackageA(PSTR packageName)
{
SecurePackage *ret;
if (packageTable && packageName)
{
UNICODE_STRING package;
RtlCreateUnicodeStringFromAsciiz(&package, packageName);
ret = SECUR32_findPackageW(package.Buffer);
RtlFreeUnicodeString(&package);
}
else
ret = NULL;
return ret;
}
static void SECUR32_freeProviders(void)
{
DWORD i;
TRACE("\n");
EnterCriticalSection(&cs);
if (packageTable)
{
for (i = 0; i < packageTable->numPackages; i++)
{
SECUR32_FREE(packageTable->table[i].infoW.Name);
SECUR32_FREE(packageTable->table[i].infoW.Comment);
}
HeapFree(GetProcessHeap(), 0, packageTable);
packageTable = NULL;
}
if (providerTable)
{
for (i = 0; i < providerTable->numProviders; i++)
{
if (providerTable->table[i].moduleName)
SECUR32_FREE(providerTable->table[i].moduleName);
if (providerTable->table[i].lib)
FreeLibrary(providerTable->table[i].lib);
}
HeapFree(GetProcessHeap(), 0, providerTable);
providerTable = NULL;
}
LeaveCriticalSection(&cs);
DeleteCriticalSection(&cs);
}
/* Doh--if pv was allocated by a crypto package, this may not be correct.
* The sample ssp seems to use LocalAlloc/LocalFee, but there doesn't seem to
* be any guarantee, nor is there an alloc function in secur32.
*/
SECURITY_STATUS SEC_ENTRY FreeContextBuffer(PVOID pv)
{
SECURITY_STATUS ret;
/* as it turns out, SECURITY_STATUSes are actually HRESULTS */
if (pv)
{
if (SECUR32_FREE(pv) == NULL)
ret = SEC_E_OK;
else
ret = HRESULT_FROM_WIN32(GetLastError());
}
else
ret = HRESULT_FROM_WIN32(ERROR_INVALID_PARAMETER);
return ret;
}
SECURITY_STATUS SEC_ENTRY EnumerateSecurityPackagesW(PULONG pcPackages,
PSecPkgInfoW *ppPackageInfo)
{
SECURITY_STATUS ret = SEC_E_OK;
/* windows just crashes if pcPackages or ppPackageInfo is NULL, so will I */
*pcPackages = 0;
EnterCriticalSection(&cs);
if (packageTable)
{
ULONG i;
size_t bytesNeeded;
bytesNeeded = packageTable->numPackages * sizeof(SecPkgInfoW);
for (i = 0; i < packageTable->numPackages; i++)
{
if (packageTable->table[i].infoW.Name)
bytesNeeded +=
(lstrlenW(packageTable->table[i].infoW.Name) + 1) *
sizeof(WCHAR);
if (packageTable->table[i].infoW.Comment)
bytesNeeded +=
(lstrlenW(packageTable->table[i].infoW.Comment) + 1) *
sizeof(WCHAR);
}
if (bytesNeeded)
{
*ppPackageInfo = (PSecPkgInfoW)SECUR32_ALLOC(bytesNeeded);
if (*ppPackageInfo)
{
PWSTR nextString;
*pcPackages = packageTable->numPackages;
nextString = (PWSTR)((PBYTE)*ppPackageInfo +
packageTable->numPackages * sizeof(SecPkgInfoW));
for (i = 0; i < packageTable->numPackages; i++)
{
PSecPkgInfoW pkgInfo = *ppPackageInfo + i;
memcpy(pkgInfo, &packageTable->table[i].infoW,
sizeof(SecPkgInfoW));
if (packageTable->table[i].infoW.Name)
{
pkgInfo->Name = nextString;
lstrcpyW(nextString, packageTable->table[i].infoW.Name);
nextString += lstrlenW(nextString) + 1;
}
else
pkgInfo->Name = NULL;
if (packageTable->table[i].infoW.Comment)
{
pkgInfo->Comment = nextString;
lstrcpyW(nextString,
packageTable->table[i].infoW.Comment);
nextString += lstrlenW(nextString) + 1;
}
else
pkgInfo->Comment = NULL;
}
}
else
ret = SEC_E_INSUFFICIENT_MEMORY;
}
}
LeaveCriticalSection(&cs);
return ret;
}
/* Converts info (which is assumed to be an array of cPackages SecPkgInfoW
* structures) into an array of SecPkgInfoA structures, which it returns.
*/
static PSecPkgInfoA thunk_PSecPkgInfoWToA(ULONG cPackages,
const PSecPkgInfoW info)
{
PSecPkgInfoA ret;
if (info)
{
size_t bytesNeeded = cPackages * sizeof(SecPkgInfoA);
ULONG i;
for (i = 0; i < cPackages; i++)
{
if (info[i].Name)
bytesNeeded += WideCharToMultiByte(CP_ACP, 0, info[i].Name,
-1, NULL, 0, NULL, NULL);
if (info[i].Comment)
bytesNeeded += WideCharToMultiByte(CP_ACP, 0, info[i].Comment,
-1, NULL, 0, NULL, NULL);
}
ret = (PSecPkgInfoA)SECUR32_ALLOC(bytesNeeded);
if (ret)
{
PSTR nextString;
nextString = (PSTR)((PBYTE)ret + cPackages * sizeof(SecPkgInfoA));
for (i = 0; i < cPackages; i++)
{
PSecPkgInfoA pkgInfo = ret + i;
int bytes;
memcpy(pkgInfo, &info[i], sizeof(SecPkgInfoA));
if (info[i].Name)
{
pkgInfo->Name = nextString;
/* just repeat back to WideCharToMultiByte how many bytes
* it requires, since we asked it earlier
*/
bytes = WideCharToMultiByte(CP_ACP, 0, info[i].Name, -1,
NULL, 0, NULL, NULL);
WideCharToMultiByte(CP_ACP, 0, info[i].Name, -1,
pkgInfo->Name, bytes, NULL, NULL);
nextString += lstrlenA(nextString) + 1;
}
else
pkgInfo->Name = NULL;
if (info[i].Comment)
{
pkgInfo->Comment = nextString;
/* just repeat back to WideCharToMultiByte how many bytes
* it requires, since we asked it earlier
*/
bytes = WideCharToMultiByte(CP_ACP, 0, info[i].Comment, -1,
NULL, 0, NULL, NULL);
WideCharToMultiByte(CP_ACP, 0, info[i].Comment, -1,
pkgInfo->Comment, bytes, NULL, NULL);
nextString += lstrlenA(nextString) + 1;
}
else
pkgInfo->Comment = NULL;
}
}
}
else
ret = NULL;
return ret;
}
SECURITY_STATUS SEC_ENTRY EnumerateSecurityPackagesA(PULONG pcPackages,
PSecPkgInfoA *ppPackageInfo)
{
SECURITY_STATUS ret;
PSecPkgInfoW info;
ret = EnumerateSecurityPackagesW(pcPackages, &info);
if (ret == SEC_E_OK && *pcPackages && info)
{
*ppPackageInfo = thunk_PSecPkgInfoWToA(*pcPackages, info);
if (*pcPackages && !*ppPackageInfo)
{
*pcPackages = 0;
ret = SEC_E_INSUFFICIENT_MEMORY;
}
FreeContextBuffer(info);
}
return ret;
}
BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
{
if (fdwReason == DLL_PROCESS_ATTACH)
{
DisableThreadLibraryCalls(hinstDLL);
SECUR32_initializeProviders();
}
else if (fdwReason == DLL_PROCESS_DETACH)
{
SECUR32_freeProviders();
}
return TRUE;
}