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FreeRDP/libfreerdp/utils/smartcard_call.c

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/**
* FreeRDP: A Remote Desktop Protocol Implementation
* Smartcard Device Service Virtual Channel
*
* Copyright (C) Alexi Volkov <alexi@myrealbox.com> 2006
* Copyright 2011 O.S. Systems Software Ltda.
* Copyright 2011 Anthony Tong <atong@trustedcs.com>
* Copyright 2015 Thincast Technologies GmbH
* Copyright 2015 DI (FH) Martin Haimberger <martin.haimberger@thincast.com>
* Copyright 2017 Armin Novak <armin.novak@thincast.com>
* Copyright 2017 Thincast Technologies GmbH
*
* 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 <freerdp/config.h>
#include <winpr/assert.h>
#include <winpr/crt.h>
#include <winpr/print.h>
#include <winpr/stream.h>
#include <winpr/library.h>
#include <winpr/smartcard.h>
#include <freerdp/freerdp.h>
#include <freerdp/channels/rdpdr.h>
#include <freerdp/channels/scard.h>
#include <freerdp/utils/rdpdr_utils.h>
#include <freerdp/utils/smartcard_pack.h>
#include <freerdp/utils/smartcard_call.h>
#include <freerdp/log.h>
#define TAG FREERDP_TAG("utils.smartcard.call")
#if defined(WITH_SMARTCARD_EMULATE)
#include <freerdp/emulate/scard/smartcard_emulate.h>
#define wrap(ctx, fkt, ...) \
ctx->useEmulatedCard ? Emulate_##fkt(ctx->emulation, ##__VA_ARGS__) \
: ctx->pWinSCardApi->pfn##fkt(__VA_ARGS__)
#define wrap_ptr(ctx, fkt, ...) wrap(ctx, fkt, ##__VA_ARGS__)
#else
#define wrap(ctx, fkt, ...) \
ctx->useEmulatedCard ? SCARD_F_INTERNAL_ERROR : ctx->pWinSCardApi->pfn##fkt(__VA_ARGS__)
#define wrap_ptr(ctx, fkt, ...) \
ctx->useEmulatedCard ? NULL : ctx->pWinSCardApi->pfn##fkt(__VA_ARGS__)
#endif
struct s_scard_call_context
{
BOOL useEmulatedCard;
HANDLE StartedEvent;
wLinkedList* names;
wHashTable* rgSCardContextList;
#if defined(WITH_SMARTCARD_EMULATE)
SmartcardEmulationContext* emulation;
#endif
HANDLE hWinSCardLibrary;
SCardApiFunctionTable WinSCardApi;
const SCardApiFunctionTable* pWinSCardApi;
HANDLE stopEvent;
void* userdata;
void* (*fn_new)(void*, SCARDCONTEXT);
void (*fn_free)(void*);
};
struct s_scard_context_element
{
void* context;
void (*fn_free)(void*);
};
static void context_free(void* arg);
static LONG smartcard_EstablishContext_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
LONG status = 0;
SCARDCONTEXT hContext = { 0 };
EstablishContext_Return ret = { 0 };
EstablishContext_Call* call = &operation->call.establishContext;
status = ret.ReturnCode =
wrap(smartcard, SCardEstablishContext, call->dwScope, NULL, NULL, &hContext);
if (ret.ReturnCode == SCARD_S_SUCCESS)
{
const void* key = (void*)(size_t)hContext;
struct s_scard_context_element* pContext =
calloc(1, sizeof(struct s_scard_context_element));
if (!pContext)
return STATUS_NO_MEMORY;
pContext->fn_free = smartcard->fn_free;
if (smartcard->fn_new)
{
pContext->context = smartcard->fn_new(smartcard->userdata, hContext);
if (!pContext->context)
{
free(pContext);
return STATUS_NO_MEMORY;
}
}
if (!HashTable_Insert(smartcard->rgSCardContextList, key, (void*)pContext))
{
WLog_ERR(TAG, "ListDictionary_Add failed!");
context_free(pContext);
return STATUS_INTERNAL_ERROR;
}
}
else
{
return scard_log_status_error(TAG, "SCardEstablishContext", status);
}
// NOLINTNEXTLINE(clang-analyzer-unix.Malloc): HashTable_Insert takes ownership of pContext
smartcard_scard_context_native_to_redir(&(ret.hContext), hContext);
status = smartcard_pack_establish_context_return(out, &ret);
if (status != SCARD_S_SUCCESS)
{
return scard_log_status_error(TAG, "smartcard_pack_establish_context_return", status);
}
return ret.ReturnCode;
}
static LONG smartcard_ReleaseContext_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
Long_Return ret = { 0 };
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
ret.ReturnCode = wrap(smartcard, SCardReleaseContext, operation->hContext);
if (ret.ReturnCode == SCARD_S_SUCCESS)
HashTable_Remove(smartcard->rgSCardContextList, (void*)operation->hContext);
else
{
return scard_log_status_error(TAG, "SCardReleaseContext", ret.ReturnCode);
}
smartcard_trace_long_return(&ret, "ReleaseContext");
return ret.ReturnCode;
}
static LONG smartcard_IsValidContext_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
Long_Return ret = { 0 };
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
ret.ReturnCode = wrap(smartcard, SCardIsValidContext, operation->hContext);
smartcard_trace_long_return(&ret, "IsValidContext");
return ret.ReturnCode;
}
static LONG smartcard_ListReaderGroupsA_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
LONG status = 0;
ListReaderGroups_Return ret = { 0 };
LPSTR mszGroups = NULL;
DWORD cchGroups = 0;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
cchGroups = SCARD_AUTOALLOCATE;
ret.ReturnCode =
wrap(smartcard, SCardListReaderGroupsA, operation->hContext, (LPSTR)&mszGroups, &cchGroups);
if (cchGroups == SCARD_AUTOALLOCATE)
return SCARD_F_UNKNOWN_ERROR;
ret.msz = (BYTE*)mszGroups;
ret.cBytes = cchGroups;
status = smartcard_pack_list_reader_groups_return(out, &ret, FALSE);
if (status != SCARD_S_SUCCESS)
return status;
if (mszGroups)
wrap(smartcard, SCardFreeMemory, operation->hContext, mszGroups);
return ret.ReturnCode;
}
static LONG smartcard_ListReaderGroupsW_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
LONG status = 0;
ListReaderGroups_Return ret = { 0 };
LPWSTR mszGroups = NULL;
DWORD cchGroups = 0;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
cchGroups = SCARD_AUTOALLOCATE;
status = ret.ReturnCode = wrap(smartcard, SCardListReaderGroupsW, operation->hContext,
(LPWSTR)&mszGroups, &cchGroups);
if (cchGroups == SCARD_AUTOALLOCATE)
return SCARD_F_UNKNOWN_ERROR;
ret.msz = (BYTE*)mszGroups;
WINPR_ASSERT(cchGroups < SCARD_AUTOALLOCATE / sizeof(WCHAR));
const size_t blen = sizeof(WCHAR) * cchGroups;
WINPR_ASSERT(blen <= UINT32_MAX);
ret.cBytes = (UINT32)blen;
if (status != SCARD_S_SUCCESS)
return status;
status = smartcard_pack_list_reader_groups_return(out, &ret, TRUE);
if (status != SCARD_S_SUCCESS)
return status;
if (mszGroups)
wrap(smartcard, SCardFreeMemory, operation->hContext, mszGroups);
return ret.ReturnCode;
}
static BOOL filter_match(wLinkedList* list, LPCSTR reader, size_t readerLen)
{
if (readerLen < 1)
return FALSE;
LinkedList_Enumerator_Reset(list);
while (LinkedList_Enumerator_MoveNext(list))
{
const char* filter = LinkedList_Enumerator_Current(list);
if (filter)
{
if (strstr(reader, filter) != NULL)
return TRUE;
}
}
return FALSE;
}
static DWORD filter_device_by_name_a(wLinkedList* list, LPSTR* mszReaders, DWORD cchReaders)
{
size_t rpos = 0;
size_t wpos = 0;
if (*mszReaders == NULL || LinkedList_Count(list) < 1)
return cchReaders;
do
{
LPCSTR rreader = &(*mszReaders)[rpos];
LPSTR wreader = &(*mszReaders)[wpos];
size_t readerLen = strnlen(rreader, cchReaders - rpos);
rpos += readerLen + 1;
if (filter_match(list, rreader, readerLen))
{
if (rreader != wreader)
memmove(wreader, rreader, readerLen + 1);
wpos += readerLen + 1;
}
} while (rpos < cchReaders);
/* this string must be double 0 terminated */
if (rpos != wpos)
{
if (wpos >= cchReaders)
return 0;
(*mszReaders)[wpos++] = '\0';
}
return (DWORD)wpos;
}
static DWORD filter_device_by_name_w(wLinkedList* list, LPWSTR* mszReaders, DWORD cchReaders)
{
DWORD rc = 0;
LPSTR readers = NULL;
if (LinkedList_Count(list) < 1)
return cchReaders;
readers = ConvertMszWCharNToUtf8Alloc(*mszReaders, cchReaders, NULL);
if (!readers)
{
free(readers);
return 0;
}
free(*mszReaders);
*mszReaders = NULL;
rc = filter_device_by_name_a(list, &readers, cchReaders);
*mszReaders = ConvertMszUtf8NToWCharAlloc(readers, rc, NULL);
if (!*mszReaders)
rc = 0;
free(readers);
return rc;
}
static LONG smartcard_ListReadersA_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
ListReaders_Return ret = { 0 };
LPSTR mszReaders = NULL;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
ListReaders_Call* call = &operation->call.listReaders;
DWORD cchReaders = SCARD_AUTOALLOCATE;
LONG status = ret.ReturnCode = wrap(smartcard, SCardListReadersA, operation->hContext,
(LPCSTR)call->mszGroups, (LPSTR)&mszReaders, &cchReaders);
if (cchReaders == SCARD_AUTOALLOCATE)
return SCARD_F_UNKNOWN_ERROR;
if (status != SCARD_S_SUCCESS)
return scard_log_status_error(TAG, "SCardListReadersA", status);
cchReaders = filter_device_by_name_a(smartcard->names, &mszReaders, cchReaders);
ret.msz = (BYTE*)mszReaders;
ret.cBytes = cchReaders;
status = smartcard_pack_list_readers_return(out, &ret, FALSE);
if (mszReaders)
wrap(smartcard, SCardFreeMemory, operation->hContext, mszReaders);
if (status != SCARD_S_SUCCESS)
return scard_log_status_error(TAG, "smartcard_pack_list_readers_return", status);
return ret.ReturnCode;
}
static LONG smartcard_ListReadersW_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
LONG status = 0;
ListReaders_Return ret = { 0 };
DWORD cchReaders = 0;
ListReaders_Call* call = NULL;
union
{
const BYTE* bp;
const char* sz;
const WCHAR* wz;
} string;
union
{
WCHAR** ppw;
WCHAR* pw;
CHAR* pc;
BYTE* pb;
} mszReaders;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(operation);
call = &operation->call.listReaders;
string.bp = call->mszGroups;
cchReaders = SCARD_AUTOALLOCATE;
status = ret.ReturnCode = wrap(smartcard, SCardListReadersW, operation->hContext, string.wz,
(LPWSTR)&mszReaders.pw, &cchReaders);
if (cchReaders == SCARD_AUTOALLOCATE)
return SCARD_F_UNKNOWN_ERROR;
if (status != SCARD_S_SUCCESS)
return scard_log_status_error(TAG, "SCardListReadersW", status);
cchReaders = filter_device_by_name_w(smartcard->names, &mszReaders.pw, cchReaders);
ret.msz = mszReaders.pb;
ret.cBytes = cchReaders * sizeof(WCHAR);
status = smartcard_pack_list_readers_return(out, &ret, TRUE);
if (mszReaders.pb)
wrap(smartcard, SCardFreeMemory, operation->hContext, mszReaders.pb);
if (status != SCARD_S_SUCCESS)
return status;
return ret.ReturnCode;
}
static LONG smartcard_IntroduceReaderGroupA_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
Long_Return ret = { 0 };
ContextAndStringA_Call* call = NULL;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
call = &operation->call.contextAndStringA;
ret.ReturnCode = wrap(smartcard, SCardIntroduceReaderGroupA, operation->hContext, call->sz);
scard_log_status_error(TAG, "SCardIntroduceReaderGroupA", ret.ReturnCode);
smartcard_trace_long_return(&ret, "IntroduceReaderGroupA");
return ret.ReturnCode;
}
static LONG smartcard_IntroduceReaderGroupW_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
Long_Return ret = { 0 };
ContextAndStringW_Call* call = NULL;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
call = &operation->call.contextAndStringW;
ret.ReturnCode = wrap(smartcard, SCardIntroduceReaderGroupW, operation->hContext, call->sz);
scard_log_status_error(TAG, "SCardIntroduceReaderGroupW", ret.ReturnCode);
smartcard_trace_long_return(&ret, "IntroduceReaderGroupW");
return ret.ReturnCode;
}
static LONG smartcard_IntroduceReaderA_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
Long_Return ret = { 0 };
ContextAndTwoStringA_Call* call = NULL;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
call = &operation->call.contextAndTwoStringA;
ret.ReturnCode =
wrap(smartcard, SCardIntroduceReaderA, operation->hContext, call->sz1, call->sz2);
scard_log_status_error(TAG, "SCardIntroduceReaderA", ret.ReturnCode);
smartcard_trace_long_return(&ret, "IntroduceReaderA");
return ret.ReturnCode;
}
static LONG smartcard_IntroduceReaderW_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
Long_Return ret = { 0 };
ContextAndTwoStringW_Call* call = NULL;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
call = &operation->call.contextAndTwoStringW;
ret.ReturnCode =
wrap(smartcard, SCardIntroduceReaderW, operation->hContext, call->sz1, call->sz2);
scard_log_status_error(TAG, "SCardIntroduceReaderW", ret.ReturnCode);
smartcard_trace_long_return(&ret, "IntroduceReaderW");
return ret.ReturnCode;
}
static LONG smartcard_ForgetReaderA_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
Long_Return ret = { 0 };
ContextAndStringA_Call* call = NULL;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
call = &operation->call.contextAndStringA;
ret.ReturnCode = wrap(smartcard, SCardForgetReaderA, operation->hContext, call->sz);
scard_log_status_error(TAG, "SCardForgetReaderA", ret.ReturnCode);
smartcard_trace_long_return(&ret, "SCardForgetReaderA");
return ret.ReturnCode;
}
static LONG smartcard_ForgetReaderW_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
Long_Return ret = { 0 };
ContextAndStringW_Call* call = NULL;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
call = &operation->call.contextAndStringW;
ret.ReturnCode = wrap(smartcard, SCardForgetReaderW, operation->hContext, call->sz);
scard_log_status_error(TAG, "SCardForgetReaderW", ret.ReturnCode);
smartcard_trace_long_return(&ret, "SCardForgetReaderW");
return ret.ReturnCode;
}
static LONG smartcard_AddReaderToGroupA_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
Long_Return ret = { 0 };
ContextAndTwoStringA_Call* call = NULL;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
call = &operation->call.contextAndTwoStringA;
ret.ReturnCode =
wrap(smartcard, SCardAddReaderToGroupA, operation->hContext, call->sz1, call->sz2);
scard_log_status_error(TAG, "SCardAddReaderToGroupA", ret.ReturnCode);
smartcard_trace_long_return(&ret, "SCardAddReaderToGroupA");
return ret.ReturnCode;
}
static LONG smartcard_AddReaderToGroupW_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
Long_Return ret = { 0 };
ContextAndTwoStringW_Call* call = NULL;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
call = &operation->call.contextAndTwoStringW;
ret.ReturnCode =
wrap(smartcard, SCardAddReaderToGroupW, operation->hContext, call->sz1, call->sz2);
scard_log_status_error(TAG, "SCardAddReaderToGroupW", ret.ReturnCode);
smartcard_trace_long_return(&ret, "SCardAddReaderToGroupA");
return ret.ReturnCode;
}
static LONG smartcard_RemoveReaderFromGroupA_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
Long_Return ret = { 0 };
ContextAndTwoStringA_Call* call = NULL;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
call = &operation->call.contextAndTwoStringA;
ret.ReturnCode =
wrap(smartcard, SCardRemoveReaderFromGroupA, operation->hContext, call->sz1, call->sz2);
scard_log_status_error(TAG, "SCardRemoveReaderFromGroupA", ret.ReturnCode);
smartcard_trace_long_return(&ret, "SCardRemoveReaderFromGroupA");
return ret.ReturnCode;
}
static LONG smartcard_RemoveReaderFromGroupW_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
Long_Return ret = { 0 };
ContextAndTwoStringW_Call* call = NULL;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
call = &operation->call.contextAndTwoStringW;
ret.ReturnCode =
wrap(smartcard, SCardRemoveReaderFromGroupW, operation->hContext, call->sz1, call->sz2);
scard_log_status_error(TAG, "SCardRemoveReaderFromGroupW", ret.ReturnCode);
smartcard_trace_long_return(&ret, "SCardRemoveReaderFromGroupW");
return ret.ReturnCode;
}
static LONG smartcard_LocateCardsA_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
LONG status = 0;
LocateCards_Return ret = { 0 };
LocateCardsA_Call* call = NULL;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(operation);
call = &operation->call.locateCardsA;
ret.ReturnCode = wrap(smartcard, SCardLocateCardsA, operation->hContext, call->mszCards,
call->rgReaderStates, call->cReaders);
scard_log_status_error(TAG, "SCardLocateCardsA", ret.ReturnCode);
ret.cReaders = call->cReaders;
ret.rgReaderStates = NULL;
if (ret.cReaders > 0)
{
ret.rgReaderStates = (ReaderState_Return*)calloc(ret.cReaders, sizeof(ReaderState_Return));
if (!ret.rgReaderStates)
return STATUS_NO_MEMORY;
}
for (UINT32 x = 0; x < ret.cReaders; x++)
{
ret.rgReaderStates[x].dwCurrentState = call->rgReaderStates[x].dwCurrentState;
ret.rgReaderStates[x].dwEventState = call->rgReaderStates[x].dwEventState;
ret.rgReaderStates[x].cbAtr = call->rgReaderStates[x].cbAtr;
CopyMemory(&(ret.rgReaderStates[x].rgbAtr), &(call->rgReaderStates[x].rgbAtr),
sizeof(ret.rgReaderStates[x].rgbAtr));
}
status = smartcard_pack_locate_cards_return(out, &ret);
if (status != SCARD_S_SUCCESS)
return status;
return ret.ReturnCode;
}
static LONG smartcard_LocateCardsW_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
LONG status = 0;
LocateCards_Return ret = { 0 };
LocateCardsW_Call* call = NULL;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(operation);
call = &operation->call.locateCardsW;
ret.ReturnCode = wrap(smartcard, SCardLocateCardsW, operation->hContext, call->mszCards,
call->rgReaderStates, call->cReaders);
scard_log_status_error(TAG, "SCardLocateCardsW", ret.ReturnCode);
ret.cReaders = call->cReaders;
ret.rgReaderStates = NULL;
if (ret.cReaders > 0)
{
ret.rgReaderStates = (ReaderState_Return*)calloc(ret.cReaders, sizeof(ReaderState_Return));
if (!ret.rgReaderStates)
return STATUS_NO_MEMORY;
}
for (UINT32 x = 0; x < ret.cReaders; x++)
{
ret.rgReaderStates[x].dwCurrentState = call->rgReaderStates[x].dwCurrentState;
ret.rgReaderStates[x].dwEventState = call->rgReaderStates[x].dwEventState;
ret.rgReaderStates[x].cbAtr = call->rgReaderStates[x].cbAtr;
CopyMemory(&(ret.rgReaderStates[x].rgbAtr), &(call->rgReaderStates[x].rgbAtr),
sizeof(ret.rgReaderStates[x].rgbAtr));
}
status = smartcard_pack_locate_cards_return(out, &ret);
if (status != SCARD_S_SUCCESS)
return status;
return ret.ReturnCode;
}
static LONG smartcard_ReadCacheA_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
LONG status = 0;
BOOL autoalloc = 0;
ReadCache_Return ret = { 0 };
ReadCacheA_Call* call = NULL;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
call = &operation->call.readCacheA;
autoalloc = (call->Common.cbDataLen == SCARD_AUTOALLOCATE);
if (!call->Common.fPbDataIsNULL)
{
ret.cbDataLen = call->Common.cbDataLen;
if (!autoalloc)
{
ret.pbData = malloc(ret.cbDataLen);
if (!ret.pbData)
return SCARD_F_INTERNAL_ERROR;
}
}
if (autoalloc)
ret.ReturnCode = wrap(smartcard, SCardReadCacheA, operation->hContext,
call->Common.CardIdentifier, call->Common.FreshnessCounter,
call->szLookupName, (BYTE*)&ret.pbData, &ret.cbDataLen);
else
ret.ReturnCode =
wrap(smartcard, SCardReadCacheA, operation->hContext, call->Common.CardIdentifier,
call->Common.FreshnessCounter, call->szLookupName, ret.pbData, &ret.cbDataLen);
if ((ret.ReturnCode != SCARD_W_CACHE_ITEM_NOT_FOUND) &&
(ret.ReturnCode != SCARD_W_CACHE_ITEM_STALE))
{
scard_log_status_error(TAG, "SCardReadCacheA", ret.ReturnCode);
}
status = smartcard_pack_read_cache_return(out, &ret);
if (autoalloc)
wrap(smartcard, SCardFreeMemory, operation->hContext, ret.pbData);
else
free(ret.pbData);
if (status != SCARD_S_SUCCESS)
return status;
return ret.ReturnCode;
}
static LONG smartcard_ReadCacheW_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
LONG status = 0;
ReadCache_Return ret = { 0 };
ReadCacheW_Call* call = NULL;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
call = &operation->call.readCacheW;
if (!call->Common.fPbDataIsNULL)
ret.cbDataLen = SCARD_AUTOALLOCATE;
ret.ReturnCode =
wrap(smartcard, SCardReadCacheW, operation->hContext, call->Common.CardIdentifier,
call->Common.FreshnessCounter, call->szLookupName, (BYTE*)&ret.pbData, &ret.cbDataLen);
if ((ret.ReturnCode != SCARD_W_CACHE_ITEM_NOT_FOUND) &&
(ret.ReturnCode != SCARD_W_CACHE_ITEM_STALE))
{
scard_log_status_error(TAG, "SCardReadCacheW", ret.ReturnCode);
}
status = smartcard_pack_read_cache_return(out, &ret);
wrap(smartcard, SCardFreeMemory, operation->hContext, ret.pbData);
if (status != SCARD_S_SUCCESS)
return status;
return ret.ReturnCode;
}
static LONG smartcard_WriteCacheA_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
Long_Return ret = { 0 };
WriteCacheA_Call* call = NULL;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
call = &operation->call.writeCacheA;
ret.ReturnCode = wrap(smartcard, SCardWriteCacheA, operation->hContext,
call->Common.CardIdentifier, call->Common.FreshnessCounter,
call->szLookupName, call->Common.pbData, call->Common.cbDataLen);
scard_log_status_error(TAG, "SCardWriteCacheA", ret.ReturnCode);
smartcard_trace_long_return(&ret, "SCardWriteCacheA");
return ret.ReturnCode;
}
static LONG smartcard_WriteCacheW_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
Long_Return ret = { 0 };
WriteCacheW_Call* call = NULL;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
call = &operation->call.writeCacheW;
ret.ReturnCode = wrap(smartcard, SCardWriteCacheW, operation->hContext,
call->Common.CardIdentifier, call->Common.FreshnessCounter,
call->szLookupName, call->Common.pbData, call->Common.cbDataLen);
scard_log_status_error(TAG, "SCardWriteCacheW", ret.ReturnCode);
smartcard_trace_long_return(&ret, "SCardWriteCacheW");
return ret.ReturnCode;
}
static LONG smartcard_GetTransmitCount_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
LONG status = 0;
GetTransmitCount_Return ret = { 0 };
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
ret.ReturnCode = wrap(smartcard, SCardGetTransmitCount, operation->hCard, &ret.cTransmitCount);
scard_log_status_error(TAG, "SCardGetTransmitCount", ret.ReturnCode);
status = smartcard_pack_get_transmit_count_return(out, &ret);
if (status != SCARD_S_SUCCESS)
return status;
return ret.ReturnCode;
}
static LONG smartcard_ReleaseStartedEvent_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
WINPR_UNUSED(smartcard);
WINPR_UNUSED(out);
WINPR_UNUSED(operation);
WLog_WARN(TAG, "According to [MS-RDPESC] 3.1.4 Message Processing Events and Sequencing Rules "
"this is not supported?!?");
return SCARD_E_UNSUPPORTED_FEATURE;
}
static LONG smartcard_GetReaderIcon_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
LONG status = 0;
GetReaderIcon_Return ret = { 0 };
GetReaderIcon_Call* call = NULL;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
call = &operation->call.getReaderIcon;
ret.cbDataLen = SCARD_AUTOALLOCATE;
ret.ReturnCode = wrap(smartcard, SCardGetReaderIconW, operation->hContext, call->szReaderName,
(LPBYTE)&ret.pbData, &ret.cbDataLen);
scard_log_status_error(TAG, "SCardGetReaderIconW", ret.ReturnCode);
if (ret.cbDataLen == SCARD_AUTOALLOCATE)
return SCARD_F_UNKNOWN_ERROR;
status = smartcard_pack_get_reader_icon_return(out, &ret);
wrap(smartcard, SCardFreeMemory, operation->hContext, ret.pbData);
if (status != SCARD_S_SUCCESS)
return status;
return ret.ReturnCode;
}
static LONG smartcard_GetDeviceTypeId_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
LONG status = 0;
GetDeviceTypeId_Return ret = { 0 };
GetDeviceTypeId_Call* call = NULL;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
call = &operation->call.getDeviceTypeId;
ret.ReturnCode = wrap(smartcard, SCardGetDeviceTypeIdW, operation->hContext, call->szReaderName,
&ret.dwDeviceId);
scard_log_status_error(TAG, "SCardGetDeviceTypeIdW", ret.ReturnCode);
status = smartcard_pack_device_type_id_return(out, &ret);
if (status != SCARD_S_SUCCESS)
return status;
return ret.ReturnCode;
}
static LONG smartcard_GetStatusChangeA_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
LONG status = STATUS_NO_MEMORY;
DWORD dwTimeOut = 0;
const DWORD dwTimeStep = 100;
GetStatusChange_Return ret = { 0 };
GetStatusChangeA_Call* call = NULL;
LPSCARD_READERSTATEA rgReaderStates = NULL;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
call = &operation->call.getStatusChangeA;
dwTimeOut = call->dwTimeOut;
if (call->cReaders > 0)
{
ret.cReaders = call->cReaders;
rgReaderStates = calloc(ret.cReaders, sizeof(SCARD_READERSTATEA));
ret.rgReaderStates = (ReaderState_Return*)calloc(ret.cReaders, sizeof(ReaderState_Return));
if (!rgReaderStates || !ret.rgReaderStates)
goto fail;
}
for (UINT32 x = 0; x < MAX(1, dwTimeOut);)
{
if (call->cReaders > 0)
memcpy(rgReaderStates, call->rgReaderStates,
call->cReaders * sizeof(SCARD_READERSTATEA));
ret.ReturnCode = wrap(smartcard, SCardGetStatusChangeA, operation->hContext,
MIN(dwTimeOut, dwTimeStep), rgReaderStates, call->cReaders);
if (ret.ReturnCode != SCARD_E_TIMEOUT)
break;
if (WaitForSingleObject(smartcard->stopEvent, 0) == WAIT_OBJECT_0)
break;
if (dwTimeOut != INFINITE)
x += dwTimeStep;
}
scard_log_status_error(TAG, "SCardGetStatusChangeA", ret.ReturnCode);
for (UINT32 index = 0; index < ret.cReaders; index++)
{
const SCARD_READERSTATEA* cur = &rgReaderStates[index];
ReaderState_Return* rout = &ret.rgReaderStates[index];
rout->dwCurrentState = cur->dwCurrentState;
rout->dwEventState = cur->dwEventState;
rout->cbAtr = cur->cbAtr;
CopyMemory(&(rout->rgbAtr), cur->rgbAtr, sizeof(rout->rgbAtr));
}
status = smartcard_pack_get_status_change_return(out, &ret, TRUE);
fail:
free(ret.rgReaderStates);
free(rgReaderStates);
if (status != SCARD_S_SUCCESS)
return status;
return ret.ReturnCode;
}
static LONG smartcard_GetStatusChangeW_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
LONG status = STATUS_NO_MEMORY;
DWORD dwTimeOut = 0;
const DWORD dwTimeStep = 100;
GetStatusChange_Return ret = { 0 };
GetStatusChangeW_Call* call = NULL;
LPSCARD_READERSTATEW rgReaderStates = NULL;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
call = &operation->call.getStatusChangeW;
dwTimeOut = call->dwTimeOut;
if (call->cReaders > 0)
{
ret.cReaders = call->cReaders;
rgReaderStates = calloc(ret.cReaders, sizeof(SCARD_READERSTATEW));
ret.rgReaderStates = (ReaderState_Return*)calloc(ret.cReaders, sizeof(ReaderState_Return));
if (!rgReaderStates || !ret.rgReaderStates)
goto fail;
}
for (UINT32 x = 0; x < MAX(1, dwTimeOut);)
{
if (call->cReaders > 0)
memcpy(rgReaderStates, call->rgReaderStates,
call->cReaders * sizeof(SCARD_READERSTATEW));
{
ret.ReturnCode = wrap(smartcard, SCardGetStatusChangeW, operation->hContext,
MIN(dwTimeOut, dwTimeStep), rgReaderStates, call->cReaders);
}
if (ret.ReturnCode != SCARD_E_TIMEOUT)
break;
if (WaitForSingleObject(smartcard->stopEvent, 0) == WAIT_OBJECT_0)
break;
if (dwTimeOut != INFINITE)
x += dwTimeStep;
}
scard_log_status_error(TAG, "SCardGetStatusChangeW", ret.ReturnCode);
for (UINT32 index = 0; index < ret.cReaders; index++)
{
const SCARD_READERSTATEW* cur = &rgReaderStates[index];
ReaderState_Return* rout = &ret.rgReaderStates[index];
rout->dwCurrentState = cur->dwCurrentState;
rout->dwEventState = cur->dwEventState;
rout->cbAtr = cur->cbAtr;
CopyMemory(&(rout->rgbAtr), cur->rgbAtr, sizeof(rout->rgbAtr));
}
status = smartcard_pack_get_status_change_return(out, &ret, TRUE);
fail:
free(ret.rgReaderStates);
free(rgReaderStates);
if (status != SCARD_S_SUCCESS)
return status;
return ret.ReturnCode;
}
static LONG smartcard_Cancel_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
Long_Return ret = { 0 };
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
ret.ReturnCode = wrap(smartcard, SCardCancel, operation->hContext);
scard_log_status_error(TAG, "SCardCancel", ret.ReturnCode);
smartcard_trace_long_return(&ret, "Cancel");
return ret.ReturnCode;
}
static LONG smartcard_ConnectA_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
LONG status = 0;
SCARDHANDLE hCard = 0;
Connect_Return ret = { 0 };
ConnectA_Call* call = NULL;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
call = &operation->call.connectA;
if ((call->Common.dwPreferredProtocols == SCARD_PROTOCOL_UNDEFINED) &&
(call->Common.dwShareMode != SCARD_SHARE_DIRECT))
{
call->Common.dwPreferredProtocols = SCARD_PROTOCOL_Tx;
}
ret.ReturnCode = wrap(smartcard, SCardConnectA, operation->hContext, (char*)call->szReader,
call->Common.dwShareMode, call->Common.dwPreferredProtocols, &hCard,
&ret.dwActiveProtocol);
smartcard_scard_context_native_to_redir(&(ret.hContext), operation->hContext);
smartcard_scard_handle_native_to_redir(&(ret.hCard), hCard);
status = smartcard_pack_connect_return(out, &ret);
if (status != SCARD_S_SUCCESS)
goto out_fail;
status = ret.ReturnCode;
out_fail:
return status;
}
static LONG smartcard_ConnectW_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
LONG status = 0;
SCARDHANDLE hCard = 0;
Connect_Return ret = { 0 };
ConnectW_Call* call = NULL;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
call = &operation->call.connectW;
if ((call->Common.dwPreferredProtocols == SCARD_PROTOCOL_UNDEFINED) &&
(call->Common.dwShareMode != SCARD_SHARE_DIRECT))
{
call->Common.dwPreferredProtocols = SCARD_PROTOCOL_Tx;
}
ret.ReturnCode = wrap(smartcard, SCardConnectW, operation->hContext, (WCHAR*)call->szReader,
call->Common.dwShareMode, call->Common.dwPreferredProtocols, &hCard,
&ret.dwActiveProtocol);
smartcard_scard_context_native_to_redir(&(ret.hContext), operation->hContext);
smartcard_scard_handle_native_to_redir(&(ret.hCard), hCard);
status = smartcard_pack_connect_return(out, &ret);
if (status != SCARD_S_SUCCESS)
goto out_fail;
status = ret.ReturnCode;
out_fail:
return status;
}
static LONG smartcard_Reconnect_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
LONG status = 0;
Reconnect_Return ret = { 0 };
Reconnect_Call* call = NULL;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
call = &operation->call.reconnect;
ret.ReturnCode =
wrap(smartcard, SCardReconnect, operation->hCard, call->dwShareMode,
call->dwPreferredProtocols, call->dwInitialization, &ret.dwActiveProtocol);
scard_log_status_error(TAG, "SCardReconnect", ret.ReturnCode);
status = smartcard_pack_reconnect_return(out, &ret);
if (status != SCARD_S_SUCCESS)
return status;
return ret.ReturnCode;
}
static LONG smartcard_Disconnect_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
Long_Return ret = { 0 };
HCardAndDisposition_Call* call = NULL;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
call = &operation->call.hCardAndDisposition;
ret.ReturnCode = wrap(smartcard, SCardDisconnect, operation->hCard, call->dwDisposition);
scard_log_status_error(TAG, "SCardDisconnect", ret.ReturnCode);
smartcard_trace_long_return(&ret, "Disconnect");
return ret.ReturnCode;
}
static LONG smartcard_BeginTransaction_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
Long_Return ret = { 0 };
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
ret.ReturnCode = wrap(smartcard, SCardBeginTransaction, operation->hCard);
scard_log_status_error(TAG, "SCardBeginTransaction", ret.ReturnCode);
smartcard_trace_long_return(&ret, "BeginTransaction");
return ret.ReturnCode;
}
static LONG smartcard_EndTransaction_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
Long_Return ret = { 0 };
HCardAndDisposition_Call* call = NULL;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
call = &operation->call.hCardAndDisposition;
ret.ReturnCode = wrap(smartcard, SCardEndTransaction, operation->hCard, call->dwDisposition);
scard_log_status_error(TAG, "SCardEndTransaction", ret.ReturnCode);
smartcard_trace_long_return(&ret, "EndTransaction");
return ret.ReturnCode;
}
static LONG smartcard_State_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
LONG status = 0;
State_Return ret = { 0 };
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
ret.cbAtrLen = SCARD_ATR_LENGTH;
ret.ReturnCode = wrap(smartcard, SCardState, operation->hCard, &ret.dwState, &ret.dwProtocol,
(BYTE*)&ret.rgAtr, &ret.cbAtrLen);
scard_log_status_error(TAG, "SCardState", ret.ReturnCode);
status = smartcard_pack_state_return(out, &ret);
if (status != SCARD_S_SUCCESS)
return status;
return ret.ReturnCode;
}
static LONG smartcard_StatusA_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
LONG status = 0;
Status_Return ret = { 0 };
DWORD cchReaderLen = 0;
DWORD cbAtrLen = 0;
LPSTR mszReaderNames = NULL;
Status_Call* call = NULL;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
call = &operation->call.status;
call->cbAtrLen = 32;
cbAtrLen = call->cbAtrLen;
if (call->fmszReaderNamesIsNULL)
cchReaderLen = 0;
else
cchReaderLen = SCARD_AUTOALLOCATE;
status = ret.ReturnCode =
wrap(smartcard, SCardStatusA, operation->hCard,
call->fmszReaderNamesIsNULL ? NULL : (LPSTR)&mszReaderNames, &cchReaderLen,
&ret.dwState, &ret.dwProtocol, cbAtrLen ? (BYTE*)&ret.pbAtr : NULL, &cbAtrLen);
scard_log_status_error(TAG, "SCardStatusA", status);
if (cchReaderLen == SCARD_AUTOALLOCATE)
return SCARD_F_UNKNOWN_ERROR;
if (status == SCARD_S_SUCCESS)
{
if (!call->fmszReaderNamesIsNULL)
ret.mszReaderNames = (BYTE*)mszReaderNames;
ret.cBytes = cchReaderLen;
if (call->cbAtrLen)
ret.cbAtrLen = cbAtrLen;
}
status = smartcard_pack_status_return(out, &ret, FALSE);
if (mszReaderNames)
wrap(smartcard, SCardFreeMemory, operation->hContext, mszReaderNames);
if (status != SCARD_S_SUCCESS)
return status;
return ret.ReturnCode;
}
static LONG smartcard_StatusW_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
LONG status = 0;
Status_Return ret = { 0 };
LPWSTR mszReaderNames = NULL;
Status_Call* call = NULL;
DWORD cbAtrLen = 0;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
call = &operation->call.status;
/**
* [MS-RDPESC]
* According to 2.2.2.18 Status_Call cbAtrLen is unused an must be ignored upon receipt.
*/
cbAtrLen = call->cbAtrLen = 32;
if (call->fmszReaderNamesIsNULL)
ret.cBytes = 0;
else
ret.cBytes = SCARD_AUTOALLOCATE;
status = ret.ReturnCode =
wrap(smartcard, SCardStatusW, operation->hCard,
call->fmszReaderNamesIsNULL ? NULL : (LPWSTR)&mszReaderNames, &ret.cBytes,
&ret.dwState, &ret.dwProtocol, (BYTE*)&ret.pbAtr, &cbAtrLen);
scard_log_status_error(TAG, "SCardStatusW", status);
if (ret.cBytes == SCARD_AUTOALLOCATE)
return SCARD_F_UNKNOWN_ERROR;
if (status == SCARD_S_SUCCESS)
{
if (!call->fmszReaderNamesIsNULL)
ret.mszReaderNames = (BYTE*)mszReaderNames;
ret.cbAtrLen = cbAtrLen;
}
/* SCardStatusW returns number of characters, we need number of bytes */
WINPR_ASSERT(ret.cBytes < SCARD_AUTOALLOCATE / sizeof(WCHAR));
const size_t blen = sizeof(WCHAR) * ret.cBytes;
WINPR_ASSERT(blen <= UINT32_MAX);
ret.cBytes = (UINT32)blen;
status = smartcard_pack_status_return(out, &ret, TRUE);
if (status != SCARD_S_SUCCESS)
return status;
if (mszReaderNames)
wrap(smartcard, SCardFreeMemory, operation->hContext, mszReaderNames);
return ret.ReturnCode;
}
static LONG smartcard_Transmit_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
LONG status = 0;
Transmit_Return ret = { 0 };
Transmit_Call* call = NULL;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
call = &operation->call.transmit;
ret.cbRecvLength = 0;
ret.pbRecvBuffer = NULL;
if (call->cbRecvLength && !call->fpbRecvBufferIsNULL)
{
if (call->cbRecvLength >= 66560)
call->cbRecvLength = 66560;
ret.cbRecvLength = call->cbRecvLength;
ret.pbRecvBuffer = (BYTE*)malloc(ret.cbRecvLength);
if (!ret.pbRecvBuffer)
return STATUS_NO_MEMORY;
}
ret.pioRecvPci = call->pioRecvPci;
ret.ReturnCode =
wrap(smartcard, SCardTransmit, operation->hCard, call->pioSendPci, call->pbSendBuffer,
call->cbSendLength, ret.pioRecvPci, ret.pbRecvBuffer, &(ret.cbRecvLength));
scard_log_status_error(TAG, "SCardTransmit", ret.ReturnCode);
status = smartcard_pack_transmit_return(out, &ret);
free(ret.pbRecvBuffer);
if (status != SCARD_S_SUCCESS)
return status;
return ret.ReturnCode;
}
static LONG smartcard_Control_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
LONG status = 0;
Control_Return ret = { 0 };
Control_Call* call = NULL;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
call = &operation->call.control;
ret.cbOutBufferSize = call->cbOutBufferSize;
ret.pvOutBuffer = (BYTE*)malloc(call->cbOutBufferSize);
if (!ret.pvOutBuffer)
return SCARD_E_NO_MEMORY;
ret.ReturnCode =
wrap(smartcard, SCardControl, operation->hCard, call->dwControlCode, call->pvInBuffer,
call->cbInBufferSize, ret.pvOutBuffer, call->cbOutBufferSize, &ret.cbOutBufferSize);
scard_log_status_error(TAG, "SCardControl", ret.ReturnCode);
status = smartcard_pack_control_return(out, &ret);
free(ret.pvOutBuffer);
if (status != SCARD_S_SUCCESS)
return status;
return ret.ReturnCode;
}
static LONG smartcard_GetAttrib_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
BOOL autoAllocate = FALSE;
LONG status = 0;
DWORD cbAttrLen = 0;
LPBYTE pbAttr = NULL;
GetAttrib_Return ret = { 0 };
const GetAttrib_Call* call = NULL;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(operation);
call = &operation->call.getAttrib;
if (!call->fpbAttrIsNULL)
{
autoAllocate = (call->cbAttrLen == SCARD_AUTOALLOCATE) ? TRUE : FALSE;
cbAttrLen = call->cbAttrLen;
if (cbAttrLen && !autoAllocate)
{
ret.pbAttr = (BYTE*)malloc(cbAttrLen);
if (!ret.pbAttr)
return SCARD_E_NO_MEMORY;
}
pbAttr = autoAllocate ? (LPBYTE) & (ret.pbAttr) : ret.pbAttr;
}
ret.ReturnCode =
wrap(smartcard, SCardGetAttrib, operation->hCard, call->dwAttrId, pbAttr, &cbAttrLen);
scard_log_status_error(TAG, "SCardGetAttrib", ret.ReturnCode);
if (cbAttrLen == SCARD_AUTOALLOCATE)
return SCARD_F_UNKNOWN_ERROR;
ret.cbAttrLen = cbAttrLen;
status = smartcard_pack_get_attrib_return(out, &ret, call->dwAttrId, call->cbAttrLen);
if (autoAllocate)
wrap(smartcard, SCardFreeMemory, operation->hContext, ret.pbAttr);
else
free(ret.pbAttr);
return status;
}
static LONG smartcard_SetAttrib_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
Long_Return ret = { 0 };
SetAttrib_Call* call = NULL;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(operation);
call = &operation->call.setAttrib;
ret.ReturnCode = wrap(smartcard, SCardSetAttrib, operation->hCard, call->dwAttrId, call->pbAttr,
call->cbAttrLen);
scard_log_status_error(TAG, "SCardSetAttrib", ret.ReturnCode);
smartcard_trace_long_return(&ret, "SetAttrib");
return ret.ReturnCode;
}
static LONG smartcard_AccessStartedEvent_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
LONG status = SCARD_S_SUCCESS;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_UNUSED(operation);
if (!smartcard->StartedEvent)
smartcard->StartedEvent = wrap_ptr(smartcard, SCardAccessStartedEvent);
if (!smartcard->StartedEvent)
status = SCARD_E_NO_SERVICE;
return status;
}
static LONG smartcard_LocateCardsByATRA_Call(scard_call_context* smartcard, wStream* out,
SMARTCARD_OPERATION* operation)
{
LONG status = 0;
GetStatusChange_Return ret = { 0 };
LPSCARD_READERSTATEA state = NULL;
LPSCARD_READERSTATEA states = NULL;
LocateCardsByATRA_Call* call = NULL;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(operation);
call = &operation->call.locateCardsByATRA;
states = (LPSCARD_READERSTATEA)calloc(call->cReaders, sizeof(SCARD_READERSTATEA));
if (!states)
return STATUS_NO_MEMORY;
for (UINT32 i = 0; i < call->cReaders; i++)
{
states[i].szReader = call->rgReaderStates[i].szReader;
states[i].dwCurrentState = call->rgReaderStates[i].dwCurrentState;
states[i].dwEventState = call->rgReaderStates[i].dwEventState;
states[i].cbAtr = call->rgReaderStates[i].cbAtr;
CopyMemory(&(states[i].rgbAtr), &(call->rgReaderStates[i].rgbAtr), 36);
}
status = ret.ReturnCode = wrap(smartcard, SCardGetStatusChangeA, operation->hContext,
0x000001F4, states, call->cReaders);
scard_log_status_error(TAG, "SCardGetStatusChangeA", status);
for (UINT32 i = 0; i < call->cAtrs; i++)
{
for (UINT32 j = 0; j < call->cReaders; j++)
{
for (UINT32 k = 0; k < call->rgAtrMasks[i].cbAtr; k++)
{
if ((call->rgAtrMasks[i].rgbAtr[k] & call->rgAtrMasks[i].rgbMask[k]) !=
(states[j].rgbAtr[k] & call->rgAtrMasks[i].rgbMask[k]))
{
break;
}
states[j].dwEventState |= SCARD_STATE_ATRMATCH;
}
}
}
ret.cReaders = call->cReaders;
ret.rgReaderStates = NULL;
if (ret.cReaders > 0)
ret.rgReaderStates = (ReaderState_Return*)calloc(ret.cReaders, sizeof(ReaderState_Return));
if (!ret.rgReaderStates)
{
free(states);
return STATUS_NO_MEMORY;
}
for (UINT32 i = 0; i < ret.cReaders; i++)
{
state = &states[i];
ret.rgReaderStates[i].dwCurrentState = state->dwCurrentState;
ret.rgReaderStates[i].dwEventState = state->dwEventState;
ret.rgReaderStates[i].cbAtr = state->cbAtr;
CopyMemory(&(ret.rgReaderStates[i].rgbAtr), &(state->rgbAtr),
sizeof(ret.rgReaderStates[i].rgbAtr));
}
free(states);
status = smartcard_pack_get_status_change_return(out, &ret, FALSE);
free(ret.rgReaderStates);
if (status != SCARD_S_SUCCESS)
return status;
return ret.ReturnCode;
}
LONG smartcard_irp_device_control_call(scard_call_context* smartcard, wStream* out,
UINT32* pIoStatus, SMARTCARD_OPERATION* operation)
{
LONG result = 0;
UINT32 offset = 0;
UINT32 ioControlCode = 0;
size_t outputBufferLength = 0;
size_t objectBufferLength = 0;
WINPR_ASSERT(smartcard);
WINPR_ASSERT(out);
WINPR_ASSERT(pIoStatus);
WINPR_ASSERT(operation);
ioControlCode = operation->ioControlCode;
/**
* [MS-RDPESC] 3.2.5.1: Sending Outgoing Messages:
* the output buffer length SHOULD be set to 2048
*
* Since it's a SHOULD and not a MUST, we don't care
* about it, but we still reserve at least 2048 bytes.
*/
if (!Stream_EnsureRemainingCapacity(out, 2048))
return SCARD_E_NO_MEMORY;
/* Device Control Response */
Stream_Write_UINT32(out, 0); /* OutputBufferLength (4 bytes) */
Stream_Zero(out, SMARTCARD_COMMON_TYPE_HEADER_LENGTH); /* CommonTypeHeader (8 bytes) */
Stream_Zero(out, SMARTCARD_PRIVATE_TYPE_HEADER_LENGTH); /* PrivateTypeHeader (8 bytes) */
Stream_Write_UINT32(out, 0); /* Result (4 bytes) */
/* Call */
switch (ioControlCode)
{
case SCARD_IOCTL_ESTABLISHCONTEXT:
result = smartcard_EstablishContext_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_RELEASECONTEXT:
result = smartcard_ReleaseContext_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_ISVALIDCONTEXT:
result = smartcard_IsValidContext_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_LISTREADERGROUPSA:
result = smartcard_ListReaderGroupsA_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_LISTREADERGROUPSW:
result = smartcard_ListReaderGroupsW_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_LISTREADERSA:
result = smartcard_ListReadersA_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_LISTREADERSW:
result = smartcard_ListReadersW_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_INTRODUCEREADERGROUPA:
result = smartcard_IntroduceReaderGroupA_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_INTRODUCEREADERGROUPW:
result = smartcard_IntroduceReaderGroupW_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_FORGETREADERGROUPA:
result = smartcard_ForgetReaderA_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_FORGETREADERGROUPW:
result = smartcard_ForgetReaderW_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_INTRODUCEREADERA:
result = smartcard_IntroduceReaderA_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_INTRODUCEREADERW:
result = smartcard_IntroduceReaderW_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_FORGETREADERA:
result = smartcard_ForgetReaderA_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_FORGETREADERW:
result = smartcard_ForgetReaderW_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_ADDREADERTOGROUPA:
result = smartcard_AddReaderToGroupA_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_ADDREADERTOGROUPW:
result = smartcard_AddReaderToGroupW_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_REMOVEREADERFROMGROUPA:
result = smartcard_RemoveReaderFromGroupA_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_REMOVEREADERFROMGROUPW:
result = smartcard_RemoveReaderFromGroupW_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_LOCATECARDSA:
result = smartcard_LocateCardsA_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_LOCATECARDSW:
result = smartcard_LocateCardsW_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_GETSTATUSCHANGEA:
result = smartcard_GetStatusChangeA_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_GETSTATUSCHANGEW:
result = smartcard_GetStatusChangeW_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_CANCEL:
result = smartcard_Cancel_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_CONNECTA:
result = smartcard_ConnectA_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_CONNECTW:
result = smartcard_ConnectW_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_RECONNECT:
result = smartcard_Reconnect_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_DISCONNECT:
result = smartcard_Disconnect_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_BEGINTRANSACTION:
result = smartcard_BeginTransaction_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_ENDTRANSACTION:
result = smartcard_EndTransaction_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_STATE:
result = smartcard_State_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_STATUSA:
result = smartcard_StatusA_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_STATUSW:
result = smartcard_StatusW_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_TRANSMIT:
result = smartcard_Transmit_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_CONTROL:
result = smartcard_Control_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_GETATTRIB:
result = smartcard_GetAttrib_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_SETATTRIB:
result = smartcard_SetAttrib_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_ACCESSSTARTEDEVENT:
result = smartcard_AccessStartedEvent_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_LOCATECARDSBYATRA:
result = smartcard_LocateCardsByATRA_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_LOCATECARDSBYATRW:
result = smartcard_LocateCardsW_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_READCACHEA:
result = smartcard_ReadCacheA_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_READCACHEW:
result = smartcard_ReadCacheW_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_WRITECACHEA:
result = smartcard_WriteCacheA_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_WRITECACHEW:
result = smartcard_WriteCacheW_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_GETTRANSMITCOUNT:
result = smartcard_GetTransmitCount_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_RELEASETARTEDEVENT:
result = smartcard_ReleaseStartedEvent_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_GETREADERICON:
result = smartcard_GetReaderIcon_Call(smartcard, out, operation);
break;
case SCARD_IOCTL_GETDEVICETYPEID:
result = smartcard_GetDeviceTypeId_Call(smartcard, out, operation);
break;
default:
result = STATUS_UNSUCCESSFUL;
break;
}
/**
* [MS-RPCE] 2.2.6.3 Primitive Type Serialization
* The type MUST be aligned on an 8-byte boundary. If the size of the
* primitive type is not a multiple of 8 bytes, the data MUST be padded.
*/
if ((ioControlCode != SCARD_IOCTL_ACCESSSTARTEDEVENT) &&
(ioControlCode != SCARD_IOCTL_RELEASETARTEDEVENT))
{
offset = (RDPDR_DEVICE_IO_RESPONSE_LENGTH + RDPDR_DEVICE_IO_CONTROL_RSP_HDR_LENGTH);
smartcard_pack_write_size_align(out, Stream_GetPosition(out) - offset, 8);
}
if ((result != SCARD_S_SUCCESS) && (result != SCARD_E_TIMEOUT) &&
(result != SCARD_E_NO_READERS_AVAILABLE) && (result != SCARD_E_NO_SERVICE) &&
(result != SCARD_W_CACHE_ITEM_NOT_FOUND) && (result != SCARD_W_CACHE_ITEM_STALE))
{
WLog_WARN(TAG, "IRP failure: %s (0x%08" PRIX32 "), status: %s (0x%08" PRIX32 ")",
scard_get_ioctl_string(ioControlCode, TRUE), ioControlCode,
SCardGetErrorString(result), result);
}
*pIoStatus = STATUS_SUCCESS;
if ((result & 0xC0000000L) == 0xC0000000L)
{
/* NTSTATUS error */
*pIoStatus = (UINT32)result;
WLog_WARN(TAG, "IRP failure: %s (0x%08" PRIX32 "), ntstatus: 0x%08" PRIX32 "",
scard_get_ioctl_string(ioControlCode, TRUE), ioControlCode, result);
}
Stream_SealLength(out);
outputBufferLength = Stream_Length(out);
WINPR_ASSERT(outputBufferLength >= RDPDR_DEVICE_IO_RESPONSE_LENGTH - 4U);
outputBufferLength -= (RDPDR_DEVICE_IO_RESPONSE_LENGTH + 4U);
WINPR_ASSERT(outputBufferLength >= RDPDR_DEVICE_IO_RESPONSE_LENGTH);
objectBufferLength = outputBufferLength - RDPDR_DEVICE_IO_RESPONSE_LENGTH;
WINPR_ASSERT(outputBufferLength <= UINT32_MAX);
WINPR_ASSERT(objectBufferLength <= UINT32_MAX);
Stream_SetPosition(out, RDPDR_DEVICE_IO_RESPONSE_LENGTH);
/* Device Control Response */
Stream_Write_UINT32(out, (UINT32)outputBufferLength); /* OutputBufferLength (4 bytes) */
smartcard_pack_common_type_header(out); /* CommonTypeHeader (8 bytes) */
smartcard_pack_private_type_header(
out, (UINT32)objectBufferLength); /* PrivateTypeHeader (8 bytes) */
Stream_Write_INT32(out, result); /* Result (4 bytes) */
Stream_SetPosition(out, Stream_Length(out));
return SCARD_S_SUCCESS;
}
void context_free(void* arg)
{
struct s_scard_context_element* element = arg;
if (!arg)
return;
if (element->fn_free)
element->fn_free(element->context);
free(element);
}
scard_call_context* smartcard_call_context_new(const rdpSettings* settings)
{
wObject* obj = NULL;
scard_call_context* ctx = NULL;
WINPR_ASSERT(settings);
ctx = calloc(1, sizeof(scard_call_context));
if (!ctx)
goto fail;
ctx->stopEvent = CreateEventA(NULL, TRUE, FALSE, NULL);
if (!ctx->stopEvent)
goto fail;
ctx->names = LinkedList_New();
if (!ctx->names)
goto fail;
#if defined(WITH_SMARTCARD_EMULATE)
ctx->useEmulatedCard = freerdp_settings_get_bool(settings, FreeRDP_SmartcardEmulation);
#endif
if (ctx->useEmulatedCard)
{
#if defined(WITH_SMARTCARD_EMULATE)
ctx->emulation = Emulate_New(settings);
if (!ctx->emulation)
goto fail;
#else
WLog_ERR(TAG, "Smartcard emulation requested, but not supported!");
goto fail;
#endif
}
else
{
const char* WinSCardModule = freerdp_settings_get_string(settings, FreeRDP_WinSCardModule);
if (WinSCardModule)
{
ctx->hWinSCardLibrary = LoadLibraryX(WinSCardModule);
if (!ctx->hWinSCardLibrary)
{
WLog_ERR(TAG, "Failed to load WinSCard library: '%s'", WinSCardModule);
goto fail;
}
if (!WinSCard_LoadApiTableFunctions(&ctx->WinSCardApi, ctx->hWinSCardLibrary))
goto fail;
ctx->pWinSCardApi = &ctx->WinSCardApi;
}
else
{
ctx->pWinSCardApi = WinPR_GetSCardApiFunctionTable();
}
if (!ctx->pWinSCardApi)
{
WLog_ERR(TAG, "Failed to load WinSCard API!");
goto fail;
}
}
ctx->rgSCardContextList = HashTable_New(FALSE);
if (!ctx->rgSCardContextList)
goto fail;
obj = HashTable_ValueObject(ctx->rgSCardContextList);
WINPR_ASSERT(obj);
obj->fnObjectFree = context_free;
return ctx;
fail:
WINPR_PRAGMA_DIAG_PUSH
WINPR_PRAGMA_DIAG_IGNORED_MISMATCHED_DEALLOC
smartcard_call_context_free(ctx);
WINPR_PRAGMA_DIAG_POP
return NULL;
}
void smartcard_call_context_free(scard_call_context* ctx)
{
if (!ctx)
return;
smartcard_call_context_signal_stop(ctx, FALSE);
LinkedList_Free(ctx->names);
if (ctx->StartedEvent)
{
WINPR_ASSERT(ctx->useEmulatedCard || ctx->pWinSCardApi);
wrap(ctx, SCardReleaseStartedEvent);
}
if (ctx->useEmulatedCard)
{
#ifdef WITH_SMARTCARD_EMULATE
if (ctx->emulation)
{
Emulate_Free(ctx->emulation);
ctx->emulation = NULL;
}
#endif
}
if (ctx->hWinSCardLibrary)
{
ZeroMemory(&ctx->WinSCardApi, sizeof(SCardApiFunctionTable));
FreeLibrary(ctx->hWinSCardLibrary);
ctx->hWinSCardLibrary = NULL;
}
ctx->pWinSCardApi = NULL;
HashTable_Free(ctx->rgSCardContextList);
(void)CloseHandle(ctx->stopEvent);
free(ctx);
}
BOOL smartcard_call_context_add(scard_call_context* ctx, const char* name)
{
WINPR_ASSERT(ctx);
WINPR_ASSERT(name);
return LinkedList_AddLast(ctx->names, name);
}
BOOL smartcard_call_cancel_context(scard_call_context* ctx, SCARDCONTEXT hContext)
{
WINPR_ASSERT(ctx);
if (wrap(ctx, SCardIsValidContext, hContext) == SCARD_S_SUCCESS)
{
wrap(ctx, SCardCancel, hContext);
}
return TRUE;
}
BOOL smartcard_call_release_context(scard_call_context* ctx, SCARDCONTEXT hContext)
{
WINPR_ASSERT(ctx);
wrap(ctx, SCardReleaseContext, hContext);
return TRUE;
}
BOOL smartcard_call_cancel_all_context(scard_call_context* ctx)
{
WINPR_ASSERT(ctx);
HashTable_Clear(ctx->rgSCardContextList);
return TRUE;
}
BOOL smarcard_call_set_callbacks(scard_call_context* ctx, void* userdata,
void* (*fn_new)(void*, SCARDCONTEXT), void (*fn_free)(void*))
{
WINPR_ASSERT(ctx);
ctx->userdata = userdata;
ctx->fn_new = fn_new;
ctx->fn_free = fn_free;
return TRUE;
}
void* smartcard_call_get_context(scard_call_context* ctx, SCARDCONTEXT hContext)
{
struct s_scard_context_element* element = NULL;
WINPR_ASSERT(ctx);
element = HashTable_GetItemValue(ctx->rgSCardContextList, (void*)hContext);
if (!element)
return NULL;
return element->context;
}
BOOL smartcard_call_is_configured(scard_call_context* ctx)
{
WINPR_ASSERT(ctx);
#if defined(WITH_SMARTCARD_EMULATE)
if (ctx->useEmulatedCard)
return Emulate_IsConfigured(ctx->emulation);
#endif
return FALSE;
}
BOOL smartcard_call_context_signal_stop(scard_call_context* ctx, BOOL reset)
{
WINPR_ASSERT(ctx);
if (!ctx->stopEvent)
return TRUE;
if (reset)
return ResetEvent(ctx->stopEvent);
else
return SetEvent(ctx->stopEvent);
}
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