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scard.c
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scard.c
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/*
rdesktop: A Remote Desktop Protocol client.
Smart Card support
Copyright (C) Alexi Volkov <alexi@myrealbox.com> 2006
Copyright 2010 Pierre Ossman <ossman@cendio.se> for Cendio AB
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <strings.h>
#include <sys/types.h>
#include <time.h>
#include <arpa/inet.h>
#ifndef MAKE_PROTO
#ifdef __APPLE__
#include <PCSC/wintypes.h>
#include <PCSC/pcsclite.h>
#include <PCSC/winscard.h>
#else
#include <wintypes.h>
#include <pcsclite.h>
#include <winscard.h>
#ifdef PCSCLITE_VERSION_NUMBER
#include <reader.h>
#endif
#endif /* PCSC_OSX */
#include "rdesktop.h"
#include "scard.h"
/* variable segment */
#define SCARD_MAX_MEM 102400
#ifndef SCARD_AUTOALLOCATE
#define SCARD_AUTOALLOCATE -1
#endif
#define OUT_STREAM_SIZE 4096
#ifdef B_ENDIAN
#define swap32(x) ((((x) & 0xff) << 24) | (((x) & 0xff00) << 8) | \
(((x) & 0xff0000) >> 8) | (((x) & 0xff000000) >> 24))
#define swap16(x) ((((x) & 0xff) << 8) | (((x) & 0xff00) >> 8))
#else
#define swap32(x) (x)
#define swap16(x) (x)
#endif
static pthread_mutex_t **scard_mutex = NULL;
static uint32 curDevice = 0, curId = 0, curBytesOut = 0;
static PSCNameMapRec nameMapList = NULL;
static int nameMapCount = 0;
static pthread_t queueHandler;
static pthread_mutex_t queueAccess;
static pthread_cond_t queueEmpty;
static pthread_mutex_t hcardAccess;
static PMEM_HANDLE threadListHandle = NULL;
static PThreadListElement threadList = NULL;
static PSCThreadData queueFirst = NULL, queueLast = NULL;
static int threadCount = 0;
static PSCHCardRec hcardFirst = NULL;
static void *queue_handler_function(void *data);
/* code segment */
#endif /* MAKE_PROTO */
void
scardSetInfo(uint32 device, uint32 id, uint32 bytes_out)
{
curDevice = device;
curId = id;
curBytesOut = bytes_out;
}
#ifndef MAKE_PROTO
static RD_NTSTATUS
scard_create(uint32 device_id, uint32 accessmask, uint32 sharemode, uint32 create_disposition,
uint32 flags_and_attributes, char *filename, RD_NTHANDLE * phandle)
{
return RD_STATUS_SUCCESS;
}
static RD_NTSTATUS
scard_close(RD_NTHANDLE handle)
{
return RD_STATUS_SUCCESS;
}
static RD_NTSTATUS
scard_read(RD_NTHANDLE handle, uint8 * data, uint32 length, uint32 offset, uint32 * result)
{
return RD_STATUS_SUCCESS;
}
static RD_NTSTATUS
scard_write(RD_NTHANDLE handle, uint8 * data, uint32 length, uint32 offset, uint32 * result)
{
return RD_STATUS_SUCCESS;
}
#endif /* MAKE_PROTO */
/* Enumeration of devices from rdesktop.c */
/* returns numer of units found and initialized. */
/* optarg looks like ':"ReaderName=ReaderAlias"' */
/* when it arrives to this function. */
int
scard_enum_devices(uint32 * id, char *optarg)
{
char *name = optarg + 1;
char *alias;
int count = 0;
PSCNameMapRec tmpMap;
MYPCSC_DWORD rv;
SCARDCONTEXT hContext;
/* code segment */
rv = SCardEstablishContext(SCARD_SCOPE_SYSTEM, NULL, NULL, &hContext);
if (rv != SCARD_S_SUCCESS)
{
error("scard_enum_devices: PCSC service not available\n");
return 0;
}
else
rv = SCardReleaseContext(hContext);
count = 0;
if (0 != pthread_mutex_init(&queueAccess, NULL))
{
error("scard_enum_devices: Can't initialize queue access mutex\n");
return 0;
}
if (0 != pthread_cond_init(&queueEmpty, NULL))
{
error("scard_enum_devices: Can't initialize queue control cv\n");
return 0;
}
if (0 != pthread_mutex_init(&hcardAccess, NULL))
{
error("scard_enum_devices: Can't initialize hcard list access mutex\n");
return 0;
}
if (0 !=
pthread_create(&queueHandler, NULL, (void *(*)(void *)) queue_handler_function, NULL))
{
error("scard_enum_devices: Can't create queue handling Thread\n");
return 0;
}
strncpy(g_rdpdr_device[*id].name, "SCARD\0\0\0", 8);
toupper_str(g_rdpdr_device[*id].name);
g_rdpdr_device[*id].local_path = "/dev/scard";
g_rdpdr_device[*id].pdevice_data = NULL;
g_rdpdr_device[*id].handle = 0;
g_rdpdr_device[*id].device_type = DEVICE_TYPE_SCARD;
count++;
(*id)++;
if (*optarg == ':')
{
while ((optarg = next_arg(name, ',')) && *id < RDPDR_MAX_DEVICES)
{
int len;
char *vendor = NULL;
alias = next_arg(name, '=');
vendor = next_arg(alias, ';');
if (strlen(name) > 0)
{
if (!strlen(alias))
{
alias = name;
vendor = "\0";
}
printf("Static/aliased Device:\n");
printf(" Lin name: [%s]\n", name);
printf(" Win name: [%s]\n", alias);
printf(" Vendor : [%s]\n", vendor);
nameMapCount++;
if (nameMapList == NULL)
nameMapList = xmalloc(nameMapCount * sizeof(TSCNameMapRec));
else
nameMapList =
xrealloc(nameMapList,
nameMapCount * sizeof(TSCNameMapRec));
tmpMap = nameMapList + nameMapCount - 1;
len = strlen(alias);
strncpy(tmpMap->alias, alias, (len > 127) ? (127) : (len));
len = strlen(name);
strncpy(tmpMap->name, name, (len > 127) ? (127) : (len));
if (vendor)
{
len = strlen(vendor);
if (len > 0)
{
memset(tmpMap->vendor, 0, 128);
strncpy(tmpMap->vendor, vendor,
(len > 127) ? (127) : (len));
}
else
tmpMap->vendor[0] = '\0';
}
else
tmpMap->vendor[0] = '\0';
}
name = optarg;
}
}
return count;
}
#ifndef MAKE_PROTO
/* ---------------------------------- */
/* Changeset 2635 in the PC/SC Lite Subversion repository
* <http://svn.debian.org/wsvn/pcsclite/> amends readerfactory.c to shift the
* reader context identity by a constant IDENTITY_SHIFT bits (defined at 16
* right now), instead of (sizeof(DWORD)/2)*8 bits as cited below, which varies
* with the sizeof(DWORD). The first release with this change in it is 1.4.100;
* the lengthy comment below still applies to pcsc-lite 1.4.4 and earlier.
* - <jared.jennings.ctr@eglin.af.mil>, 25 March 2008
*
* These two functions depend heavily on the actual implementation of the smart
* card handle in PC/SC Lite 1.3.1. Here are the salient bits:
*
* From winscard.c:331, in SCardConnect:
* *phCard = RFCreateReaderHandle(rContext);
*
* RFCreateReaderHandle (readerfactory.c:1161) creates a random short (16-bit
* integer) and makes sure it's unique. Then it adds it to
* rContext->dwIdentity.
*
* From readerfactory.c:173, in RFAddReader:
* (sReadersContexts[dwContext])->dwIdentity =
* (dwContext + 1) << (sizeof(DWORD) / 2) * 8;
*
* dwContext must be less than PCSCLITE_MAX_READERS_CONTEXTS, which is defined
* to be 16 in the 1.3.1 release.
*
* The use of "(sizeof(DWORD) / 2) * 8" is what makes conversion necessary in
* order to use 64-bit card handles when talking to PC/SC Lite, and 32-bit card
* handles when talking with the server, without losing any data: a card handle
* made by a 32-bit PC/SC Lite looks like 0x00014d32, where the 4d32 is the
* random 16 bits, 01 is the reader context index + 1, and it's left-shifted by
* 16 bits (sizeof(DWORD) == 4, divided by 2 is 2, times 8 is 16.) But a 64-bit
* PC/SC Lite makes a card handle that looks like 0x0000000100004d32. The
* reader context index+1 is left-shifted 32 bits because sizeof(DWORD) is 8,
* not 4. This means the handle won't fit in 32 bits. (The multiplication by 8
* is because sizeofs are in bytes, but saying how many places to left-shift is
* speaking in bits.)
*
* So then. Maximum value of dwContext+1 is 17; we'll say this fits in a byte
* to be loose and have plenty of room. This is then left-shifted by
* sizeof(DWORD) / 2 * 8 - which in this file is sizeof(MYPCSC_DWORD) / 2 * 8.
*
* At any rate, if we take the handle as passed from PC/SC Lite, right-shift by
* sizeof(MYPCSC_DWORD) / 2, left-shift by sizeof(SERVER_DWORD) / 2, and add
* the lower two bytes of the value (the random number), we can fit all the
* information into 32 bits without losing any. Of course, any time we want to
* hand that back to PC/SC Lite, we'll have to expand it again. (And if
* sizeof(MYPCSC_DWORD) == sizeof(SERVER_DWORD), we're essentially doing
* nothing, which will not break anything.)
*
*
* - jared.jennings.ctr@eglin.af.mil, 2 Aug 2006
*/
static MYPCSC_SCARDHANDLE
scHandleToMyPCSC(SERVER_SCARDHANDLE server)
{
#ifdef PCSCLITE_1_4_4_OR_BEFORE
return (((MYPCSC_SCARDHANDLE) server >> (sizeof(SERVER_DWORD) * 8 / 2) & 0xffff)
<< (sizeof(MYPCSC_DWORD) * 8 / 2)) + (server & 0xffff);
#else
return server;
#endif
}
static SERVER_SCARDHANDLE
scHandleToServer(MYPCSC_SCARDHANDLE mypcsc)
{
#ifdef PCSCLITE_1_4_4_OR_BEFORE
return ((mypcsc >> (sizeof(MYPCSC_DWORD) * 8 / 2) & 0xffff)
<< (sizeof(SERVER_DWORD) * 8 / 2)) + (mypcsc & 0xffff);
#else
return mypcsc;
#endif
}
/* ---------------------------------- */
static void *
SC_xmalloc(PMEM_HANDLE * memHandle, unsigned int size)
{
PMEM_HANDLE handle = NULL;
if (size > 0 && memHandle)
{
handle = xmalloc(size + sizeof(MEM_HANDLE));
if (handle)
{
handle->prevHandle = NULL;
handle->nextHandle = NULL;
handle->dataSize = size;
if (*memHandle)
{
handle->prevHandle = *memHandle;
(*memHandle)->nextHandle = handle;
}
*memHandle = handle;
return handle + 1;
}
else
return NULL;
}
else
return NULL;
}
static void
SC_xfree(PMEM_HANDLE * handle, void *memptr)
{
if (memptr != NULL)
{
PMEM_HANDLE lcHandle = (PMEM_HANDLE) memptr - 1;
if (lcHandle->dataSize > 0)
{
memset(memptr, 0, lcHandle->dataSize);
if (lcHandle->nextHandle)
lcHandle->nextHandle->prevHandle = lcHandle->prevHandle;
if (lcHandle->prevHandle)
lcHandle->prevHandle->nextHandle = lcHandle->nextHandle;
if (*handle == lcHandle)
{
if (lcHandle->prevHandle)
*handle = lcHandle->prevHandle;
else
*handle = lcHandle->nextHandle;
}
xfree(lcHandle);
}
}
}
static void
SC_xfreeallmemory(PMEM_HANDLE * handle)
{
if (handle && (*handle))
{
if ((*handle)->prevHandle)
{
(*handle)->prevHandle->nextHandle = NULL;
SC_xfreeallmemory(&((*handle)->prevHandle));
}
if ((*handle)->nextHandle)
{
(*handle)->nextHandle->prevHandle = NULL;
SC_xfreeallmemory(&((*handle)->nextHandle));
}
memset(*handle, 0, (*handle)->dataSize + sizeof(MEM_HANDLE));
xfree(*handle);
*handle = NULL;
}
}
/* ---------------------------------- */
static char *
getName(char *alias)
{
int i;
PSCNameMapRec tmpMap;
for (i = 0, tmpMap = nameMapList; i < nameMapCount; i++, tmpMap++)
{
if (strcmp(tmpMap->alias, alias) == 0)
return tmpMap->name;
}
return alias;
}
static char *
getVendor(char *name)
{
int i;
PSCNameMapRec tmpMap;
for (i = 0, tmpMap = nameMapList; i < nameMapCount; i++, tmpMap++)
{
if (strcmp(tmpMap->name, name) == 0)
return tmpMap->vendor;
}
return NULL;
}
static char *
getAlias(char *name)
{
int i;
PSCNameMapRec tmpMap;
for (i = 0, tmpMap = nameMapList; i < nameMapCount; i++, tmpMap++)
{
if (strcmp(tmpMap->name, name) == 0)
return tmpMap->alias;
}
return name;
}
static int
hasAlias(char *name)
{
int i;
PSCNameMapRec tmpMap;
for (i = 0, tmpMap = nameMapList; i < nameMapCount; i++, tmpMap++)
{
if (strcmp(tmpMap->name, name) == 0)
return 1;
}
return 0;
}
static void
inRepos(STREAM in, unsigned int read)
{
SERVER_DWORD add = 4 - read % 4;
if (add < 4 && add > 0)
{
in_uint8s(in, add);
}
}
static void
outRepos(STREAM out, unsigned int written)
{
SERVER_DWORD add = (4 - written % 4) % 4;
if (add > 0)
{
out_uint8s(out, add);
}
}
static void
outBufferStartWithLimit(STREAM out, int length, int highLimit)
{
int header = (length < 0) ? (0) : ((length > highLimit) ? (highLimit) : (length));
out_uint32_le(out, header);
out_uint32_le(out, 0x00000001); /* Magic DWORD - any non zero */
}
static void
outBufferStart(STREAM out, int length)
{
outBufferStartWithLimit(out, length, 0x7FFFFFFF);
}
static void
outBufferFinishWithLimit(STREAM out, char *buffer, unsigned int length, unsigned int highLimit)
{
int header = (length < 0) ? (0) : ((length > highLimit) ? (highLimit) : (length));
out_uint32_le(out, header);
if (length <= 0)
{
out_uint32_le(out, 0x00000000);
}
else
{
if (header < length)
length = header;
out_uint8p(out, buffer, length);
outRepos(out, length);
}
}
static void
outBufferFinish(STREAM out, char *buffer, unsigned int length)
{
outBufferFinishWithLimit(out, buffer, length, 0x7FFFFFFF);
}
static void
outForceAlignment(STREAM out, unsigned int seed)
{
SERVER_DWORD add = (seed - (out->p - out->data) % seed) % seed;
if (add > 0)
out_uint8s(out, add);
}
static unsigned int
inString(PMEM_HANDLE * handle, STREAM in, char **destination, SERVER_DWORD dataLength, RD_BOOL wide)
{
unsigned int Result = (wide) ? (2 * dataLength) : (dataLength);
PMEM_HANDLE lcHandle = NULL;
char *buffer = SC_xmalloc(&lcHandle, Result + 2);
char *reader;
/* code segment */
if (wide)
{
int i;
in_uint8a(in, buffer, 2 * dataLength);
for (i = 0; i < dataLength; i++)
if ((buffer[2 * i] < 0) || (buffer[2 * i + 1] != 0))
buffer[i] = '?';
else
buffer[i] = buffer[2 * i];
}
else
{
in_uint8a(in, buffer, dataLength);
}
buffer[dataLength] = '\0';
reader = getName(buffer);
*destination = SC_xmalloc(handle, strlen(reader) + 1);
strcpy(*destination, reader);
SC_xfreeallmemory(&lcHandle);
return Result;
}
static unsigned int
outString(STREAM out, char *source, RD_BOOL wide)
{
PMEM_HANDLE lcHandle = NULL;
char *reader = getAlias(source);
unsigned int dataLength = strlen(reader) + 1;
unsigned int Result = (wide) ? (2 * dataLength) : (dataLength);
/* code segment */
if (wide)
{
int i;
char *buffer = SC_xmalloc(&lcHandle, Result);
for (i = 0; i < dataLength; i++)
{
if (source[i] < 0)
buffer[2 * i] = '?';
else
buffer[2 * i] = reader[i];
buffer[2 * i + 1] = '\0';
}
out_uint8p(out, buffer, 2 * dataLength);
}
else
{
out_uint8p(out, reader, dataLength);
}
SC_xfreeallmemory(&lcHandle);
return Result;
}
static void
inReaderName(PMEM_HANDLE * handle, STREAM in, char **destination, RD_BOOL wide)
{
SERVER_DWORD dataLength;
in->p += 0x08;
in_uint32_le(in, dataLength);
inRepos(in, inString(handle, in, destination, dataLength, wide));
}
static void
inSkipLinked(STREAM in)
{
SERVER_DWORD len;
in_uint32_le(in, len);
if (len > 0)
{
in_uint8s(in, len);
inRepos(in, len);
}
}
/* ---------------------------------- */
/* Smart Card processing functions: */
/* ---------------------------------- */
static MYPCSC_DWORD
SC_returnCode(MYPCSC_DWORD rc, PMEM_HANDLE * handle, STREAM in, STREAM out)
{
SC_xfreeallmemory(handle);
out_uint8s(out, 256);
return rc;
}
static MYPCSC_DWORD
SC_returnNoMemoryError(PMEM_HANDLE * handle, STREAM in, STREAM out)
{
return SC_returnCode(SCARD_E_NO_MEMORY, handle, in, out);
}
static MYPCSC_DWORD
TS_SCardEstablishContext(STREAM in, STREAM out)
{
MYPCSC_DWORD rv;
MYPCSC_SCARDCONTEXT hContext;
/* code segment */
DEBUG_SCARD(("SCARD: SCardEstablishContext()\n"));
rv = SCardEstablishContext(SCARD_SCOPE_SYSTEM, NULL, NULL, &hContext);
if (rv)
{
DEBUG_SCARD(("SCARD: -> Failure: %s (0x%08x)\n",
pcsc_stringify_error(rv), (unsigned int) rv));
}
else
{
DEBUG_SCARD(("SCARD: -> Success (context: 0x%08lx)\n", hContext));
}
out_uint32_le(out, 0x00000004);
out_uint32_le(out, (SERVER_DWORD) hContext); /* must not be 0 (Seems to be pointer), don't know what is this (I use hContext as value) */
/* i hope it's not a pointer because i just downcasted it - jlj */
out_uint32_le(out, 0x00000004);
out_uint32_le(out, (SERVER_DWORD) hContext);
return rv;
}
static MYPCSC_DWORD
TS_SCardReleaseContext(STREAM in, STREAM out)
{
MYPCSC_DWORD rv;
SERVER_SCARDCONTEXT hContext;
in->p += 0x1C;
in_uint32_le(in, hContext);
DEBUG_SCARD(("SCARD: SCardReleaseContext(context: 0x%08x)\n", (unsigned) hContext));
rv = SCardReleaseContext((MYPCSC_SCARDCONTEXT) hContext);
if (rv)
{
DEBUG_SCARD(("SCARD: -> Failure: %s (0x%08x)\n",
pcsc_stringify_error(rv), (unsigned int) rv));
}
else
{
DEBUG_SCARD(("SCARD: -> Success\n"));
}
return rv;
}
static MYPCSC_DWORD
TS_SCardIsValidContext(STREAM in, STREAM out)
{
MYPCSC_DWORD rv;
SERVER_SCARDCONTEXT hContext;
char *readers;
DWORD readerCount = 1024;
PMEM_HANDLE lcHandle = NULL;
in->p += 0x1C;
in_uint32_le(in, hContext);
DEBUG_SCARD(("SCARD: SCardIsValidContext(context: 0x%08x)\n", (unsigned) hContext));
/* There is no realization of SCardIsValidContext in PC/SC Lite so we call SCardListReaders */
readers = SC_xmalloc(&lcHandle, 1024);
if (!readers)
return SC_returnNoMemoryError(&lcHandle, in, out);
rv = SCardListReaders((MYPCSC_SCARDCONTEXT) hContext, NULL, readers, &readerCount);
if (rv)
{
DEBUG_SCARD(("SCARD: -> Failure: %s (0x%08x)\n",
pcsc_stringify_error(rv), (unsigned int) rv));
rv = SCARD_E_INVALID_HANDLE;
}
else
{
DEBUG_SCARD(("SCARD: -> Success\n"));
}
outForceAlignment(out, 8);
SC_xfreeallmemory(&lcHandle);
return rv;
}
static MYPCSC_DWORD
TS_SCardListReaders(STREAM in, STREAM out, RD_BOOL wide)
{
#define readerArraySize 1024
MYPCSC_DWORD rv;
SERVER_SCARDCONTEXT hContext;
SERVER_DWORD dataLength;
MYPCSC_DWORD cchReaders = readerArraySize;
unsigned char *plen1, *plen2, *pend;
char *readers, *cur;
PMEM_HANDLE lcHandle = NULL;
in->p += 0x2C;
in_uint32_le(in, hContext);
DEBUG_SCARD(("SCARD: SCardListReaders(context: 0x%08x)\n", (unsigned) hContext));
plen1 = out->p;
out_uint32_le(out, 0x00000000); /* Temp value for data length as 0x0 */
out_uint32_le(out, 0x01760650);
plen2 = out->p;
out_uint32_le(out, 0x00000000); /* Temp value for data length as 0x0 */
dataLength = 0;
readers = SC_xmalloc(&lcHandle, readerArraySize);
if (!readers)
return SC_returnNoMemoryError(&lcHandle, in, out);
readers[0] = '\0';
readers[1] = '\0';
rv = SCardListReaders((MYPCSC_SCARDCONTEXT) hContext, NULL, readers, &cchReaders);
cur = readers;
if (rv != SCARD_S_SUCCESS)
{
DEBUG_SCARD(("SCARD: -> Failure: %s (0x%08x)\n",
pcsc_stringify_error(rv), (unsigned int) rv));
}
else
{
int i;
PSCNameMapRec tmpMap;
DEBUG_SCARD(("SCARD: -> Success\n"));
for (i = 0, tmpMap = nameMapList; i < nameMapCount; i++, tmpMap++)
{
dataLength += outString(out, tmpMap->alias, wide);
}
int lenSC = strlen(cur);
if (lenSC == 0)
dataLength += outString(out, "\0", wide);
else
while (lenSC > 0)
{
if (!hasAlias(cur))
{
DEBUG_SCARD(("SCARD: \"%s\"\n", cur));
dataLength += outString(out, cur, wide);
}
cur = (void *) ((unsigned char *) cur + lenSC + 1);
lenSC = strlen(cur);
}
}
dataLength += outString(out, "\0", wide);
outRepos(out, dataLength);
pend = out->p;
out->p = plen1;
out_uint32_le(out, dataLength);
out->p = plen2;
out_uint32_le(out, dataLength);
out->p = pend;
outForceAlignment(out, 8);
SC_xfreeallmemory(&lcHandle);
return rv;
}
static MYPCSC_DWORD
TS_SCardConnect(STREAM in, STREAM out, RD_BOOL wide)
{
MYPCSC_DWORD rv;
SCARDCONTEXT hContext;
char *szReader;
SERVER_DWORD dwShareMode;
SERVER_DWORD dwPreferredProtocol;
MYPCSC_SCARDHANDLE myHCard;
SERVER_SCARDHANDLE hCard;
MYPCSC_DWORD dwActiveProtocol;
PMEM_HANDLE lcHandle = NULL;
in->p += 0x1C;
in_uint32_le(in, dwShareMode);
in_uint32_le(in, dwPreferredProtocol);
inReaderName(&lcHandle, in, &szReader, wide);
in->p += 0x04;
in_uint32_le(in, hContext);
DEBUG_SCARD(("SCARD: SCardConnect(context: 0x%08x, share: 0x%08x, proto: 0x%08x, reader: \"%s\")\n", (unsigned) hContext, (unsigned) dwShareMode, (unsigned) dwPreferredProtocol, szReader ? szReader : "NULL"));
rv = SCardConnect(hContext, szReader, (MYPCSC_DWORD) dwShareMode,
(MYPCSC_DWORD) dwPreferredProtocol, &myHCard, &dwActiveProtocol);
hCard = scHandleToServer(myHCard);
if (rv != SCARD_S_SUCCESS)
{
DEBUG_SCARD(("SCARD: -> Failure: %s (0x%08x)\n",
pcsc_stringify_error(rv), (unsigned int) rv));
}
else
{
char *szVendor = getVendor(szReader);
DEBUG_SCARD(("SCARD: -> Success (hcard: 0x%08x [0x%08lx])\n",
(unsigned) hCard, (unsigned long) myHCard));
if (szVendor && (strlen(szVendor) > 0))
{
DEBUG_SCARD(("SCARD: Set Attribute ATTR_VENDOR_NAME\n"));
pthread_mutex_lock(&hcardAccess);
PSCHCardRec hcard = xmalloc(sizeof(TSCHCardRec));
if (hcard)
{
hcard->hCard = hCard;
hcard->vendor = szVendor;
hcard->next = NULL;
hcard->prev = NULL;
if (hcardFirst)
{
hcardFirst->prev = hcard;
hcard->next = hcardFirst;
}
hcardFirst = hcard;
}
pthread_mutex_unlock(&hcardAccess);
}
}
out_uint32_le(out, 0x00000000);
out_uint32_le(out, 0x00000000);
out_uint32_le(out, 0x00000004);
out_uint32_le(out, 0x016Cff34);
/* if the active protocol > 4 billion, this is trouble. odds are low */
out_uint32_le(out, (SERVER_DWORD) dwActiveProtocol);
out_uint32_le(out, 0x00000004);
out_uint32_le(out, hCard);
outForceAlignment(out, 8);
SC_xfreeallmemory(&lcHandle);
return rv;
}
static MYPCSC_DWORD
TS_SCardReconnect(STREAM in, STREAM out)
{
MYPCSC_DWORD rv;
SCARDCONTEXT hContext;
SERVER_SCARDHANDLE hCard;
MYPCSC_SCARDHANDLE myHCard;
SERVER_DWORD dwShareMode;
SERVER_DWORD dwPreferredProtocol;
SERVER_DWORD dwInitialization;
MYPCSC_DWORD dwActiveProtocol;
in->p += 0x20;
in_uint32_le(in, dwShareMode);
in_uint32_le(in, dwPreferredProtocol);
in_uint32_le(in, dwInitialization);
in->p += 0x04;
in_uint32_le(in, hContext);
in->p += 0x04;
in_uint32_le(in, hCard);
myHCard = scHandleToMyPCSC(hCard);
DEBUG_SCARD(("SCARD: SCardReconnect(context: 0x%08x, hcard: 0x%08x [0x%08lx], share: 0x%08x, proto: 0x%08x, init: 0x%08x)\n", (unsigned) hContext, (unsigned) hCard, (unsigned long) myHCard, (unsigned) dwShareMode, (unsigned) dwPreferredProtocol, (unsigned) dwInitialization));
rv = SCardReconnect(myHCard, (MYPCSC_DWORD) dwShareMode, (MYPCSC_DWORD) dwPreferredProtocol,
(MYPCSC_DWORD) dwInitialization, &dwActiveProtocol);
if (rv != SCARD_S_SUCCESS)
{
DEBUG_SCARD(("SCARD: -> Failure: %s (0x%08x)\n",
pcsc_stringify_error(rv), (unsigned int) rv));
}
else
{
DEBUG_SCARD(("SCARD: -> Success (proto: 0x%08x)\n", (unsigned) dwActiveProtocol));
}
outForceAlignment(out, 8);
out_uint32_le(out, (SERVER_DWORD) dwActiveProtocol);
return rv;
}
static MYPCSC_DWORD
TS_SCardDisconnect(STREAM in, STREAM out)
{
MYPCSC_DWORD rv;
SERVER_SCARDCONTEXT hContext;
SERVER_SCARDHANDLE hCard;
MYPCSC_SCARDHANDLE myHCard;
SERVER_DWORD dwDisposition;
in->p += 0x20;
in_uint32_le(in, dwDisposition);
in->p += 0x04;
in_uint32_le(in, hContext);
in->p += 0x04;
in_uint32_le(in, hCard);
DEBUG_SCARD(("SCARD: SCardDisconnect(context: 0x%08x, hcard: 0x%08x, disposition: 0x%08x)\n", (unsigned) hContext, (unsigned) hCard, (unsigned) dwDisposition));
pthread_mutex_lock(&hcardAccess);
PSCHCardRec hcard = hcardFirst;
while (hcard)
{
if (hcard->hCard == hCard)
{
if (hcard->prev)
hcard->prev->next = hcard->next;
if (hcard->next)
hcard->next->prev = hcard->prev;
if (hcardFirst == hcard)
hcardFirst = hcard->next;
xfree(hcard);
break;
}
hcard = hcard->next;
}
pthread_mutex_unlock(&hcardAccess);
myHCard = scHandleToMyPCSC(hCard);
rv = SCardDisconnect(myHCard, (MYPCSC_DWORD) dwDisposition);
if (rv != SCARD_S_SUCCESS)
{
DEBUG_SCARD(("SCARD: -> Failure: %s (0x%08x)\n",
pcsc_stringify_error(rv), (unsigned int) rv));
}
else
{
DEBUG_SCARD(("SCARD: -> Success\n"));
}
outForceAlignment(out, 8);
return rv;
}
/* Currently unused */
#if 0
static int
needStatusRecheck(MYPCSC_DWORD rv, MYPCSC_LPSCARD_READERSTATE_A rsArray, SERVER_DWORD dwCount)
{
int i, recall = 0;
if (rv == SCARD_S_SUCCESS)
{
MYPCSC_LPSCARD_READERSTATE_A cur;
for (i = 0, cur = rsArray; i < dwCount; i++, cur++)
{
if (cur->dwEventState & SCARD_STATE_UNKNOWN)
{
cur->dwCurrentState = cur->dwEventState;
recall++;
}
}
}
return recall;
}
static RD_BOOL
mappedStatus(MYPCSC_DWORD code)
{
code >>= 16;
code &= 0x0000FFFF;
return (code % 2);
}
#endif
static void
copyReaderState_MyPCSCToServer(MYPCSC_LPSCARD_READERSTATE_A src, SERVER_LPSCARD_READERSTATE_A dst,
MYPCSC_DWORD readerCount)
{
MYPCSC_LPSCARD_READERSTATE_A srcIter;
SERVER_LPSCARD_READERSTATE_A dstIter;
MYPCSC_DWORD i;
for (i = 0, srcIter = src, dstIter = dst; i < readerCount; i++, srcIter++, dstIter++)
{
dstIter->szReader = srcIter->szReader;
dstIter->pvUserData = srcIter->pvUserData;