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xrdp-proprietary/sesman/chansrv/pcsc/xrdp_pcsc.c

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <pthread.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <sys/stat.h>
#define PCSC_API
typedef unsigned char BYTE;
typedef BYTE *LPBYTE;
typedef unsigned int LONG;
typedef unsigned int DWORD;
typedef DWORD *LPDWORD;
typedef const void *LPCVOID;
typedef const char *LPCSTR;
typedef char *LPSTR;
typedef void *LPVOID;
typedef const BYTE *LPCBYTE;
typedef LONG SCARDCONTEXT;
typedef SCARDCONTEXT *LPSCARDCONTEXT;
typedef LONG SCARDHANDLE;
typedef SCARDHANDLE *LPSCARDHANDLE;
#define MAX_ATR_SIZE 33
typedef struct _SCARD_READERSTATE
{
const char *szReader;
void *pvUserData;
DWORD dwCurrentState;
DWORD dwEventState;
DWORD cbAtr;
unsigned char rgbAtr[MAX_ATR_SIZE];
} SCARD_READERSTATE, *LPSCARD_READERSTATE;
typedef struct _SCARD_IO_REQUEST
{
unsigned long dwProtocol;
unsigned long cbPciLength;
} SCARD_IO_REQUEST, *PSCARD_IO_REQUEST, *LPSCARD_IO_REQUEST;
#define SCARD_PROTOCOL_T0 0x0001 /**< T=0 active protocol. */
#define SCARD_PROTOCOL_T1 0x0002 /**< T=1 active protocol. */
#define SCARD_PROTOCOL_RAW 0x0004 /**< Raw active protocol. */
PCSC_API SCARD_IO_REQUEST g_rgSCardT0Pci = { SCARD_PROTOCOL_T0, 8 };
PCSC_API SCARD_IO_REQUEST g_rgSCardT1Pci = { SCARD_PROTOCOL_T1, 8 };
PCSC_API SCARD_IO_REQUEST g_rgSCardRawPci = { SCARD_PROTOCOL_RAW, 8 };
#define LLOG_LEVEL 5
#define LLOGLN(_level, _args) \
do { if (_level < LLOG_LEVEL) { printf _args ; printf("\n"); } } while (0)
#define SCARD_ESTABLISH_CONTEXT 0x01
#define SCARD_RELEASE_CONTEXT 0x02
#define SCARD_LIST_READERS 0x03
#define SCARD_CONNECT 0x04
#define SCARD_RECONNECT 0x05
#define SCARD_DISCONNECT 0x06
#define SCARD_BEGIN_TRANSACTION 0x07
#define SCARD_END_TRANSACTION 0x08
#define SCARD_TRANSMIT 0x09
#define SCARD_CONTROL 0x0A
#define SCARD_STATUS 0x0B
#define SCARD_GET_STATUS_CHANGE 0x0C
#define SCARD_CANCEL 0x0D
#define SCARD_CANCEL_TRANSACTION 0x0E
#define SCARD_GET_ATTRIB 0x0F
#define SCARD_SET_ATTRIB 0x10
#define SCARD_S_SUCCESS 0x00000000
#define SCARD_F_INTERNAL_ERROR ((LONG)0x80100001)
#define SET_UINT32(_data, _offset, _val) do { \
(((BYTE*)(_data)) + (_offset))[0] = ((_val) >> 0) & 0xff; \
(((BYTE*)(_data)) + (_offset))[1] = ((_val) >> 8) & 0xff; \
(((BYTE*)(_data)) + (_offset))[2] = ((_val) >> 16) & 0xff; \
(((BYTE*)(_data)) + (_offset))[3] = ((_val) >> 24) & 0xff; } while (0)
#define GET_UINT32(_data, _offset) \
((((BYTE*)(_data)) + (_offset))[0] << 0) | \
((((BYTE*)(_data)) + (_offset))[1] << 8) | \
((((BYTE*)(_data)) + (_offset))[2] << 16) | \
((((BYTE*)(_data)) + (_offset))[3] << 24)
#define LMIN(_val1, _val2) (_val1) < (_val2) ? (_val1) : (_val2)
#define LMAX(_val1, _val2) (_val1) > (_val2) ? (_val1) : (_val2)
static int g_sck = -1; /* unix domain socket */
static pthread_mutex_t g_mutex = PTHREAD_MUTEX_INITIALIZER;
/* for pcsc_stringify_error */
static char g_error_str[512];
/*****************************************************************************/
static int
get_display_num_from_display(const char *display_text)
{
int rv;
int index;
int mode;
int host_index;
int disp_index;
int scre_index;
char host[256];
char disp[256];
char scre[256];
memset(host, 0, 256);
memset(disp, 0, 256);
memset(scre, 0, 256);
index = 0;
host_index = 0;
disp_index = 0;
scre_index = 0;
mode = 0;
while (display_text[index] != 0)
{
if (display_text[index] == ':')
{
mode = 1;
}
else if (display_text[index] == '.')
{
mode = 2;
}
else if (mode == 0)
{
host[host_index] = display_text[index];
host_index++;
}
else if (mode == 1)
{
disp[disp_index] = display_text[index];
disp_index++;
}
else if (mode == 2)
{
scre[scre_index] = display_text[index];
scre_index++;
}
index++;
}
host[host_index] = 0;
disp[disp_index] = 0;
scre[scre_index] = 0;
LLOGLN(0, ("get_display_num_from_display: host [%s] disp [%s] scre [%s]",
host, disp, scre));
rv = atoi(disp);
return rv;
}
/*****************************************************************************/
static int
connect_to_chansrv(void)
{
int bytes;
int dis;
int error;
char *xrdp_session;
char *xrdp_display;
char *home_str;
struct sockaddr_un saddr;
struct sockaddr *psaddr;
if (g_sck != -1)
{
/* already connected */
return 0;
}
xrdp_session = getenv("XRDP_SESSION");
if (xrdp_session == NULL)
{
/* XRDP_SESSION must be set */
LLOGLN(0, ("connect_to_chansrv: error, not xrdp session"));
return 1;
}
xrdp_display = getenv("DISPLAY");
if (xrdp_display == NULL)
{
/* DISPLAY must be set */
LLOGLN(0, ("connect_to_chansrv: error, display not set"));
return 1;
}
home_str = getenv("HOME");
if (home_str == NULL)
{
/* HOME must be set */
LLOGLN(0, ("connect_to_chansrv: error, home not set"));
return 1;
}
dis = get_display_num_from_display(xrdp_display);
if (dis < 10)
{
/* DISPLAY must be > 9 */
LLOGLN(0, ("connect_to_chansrv: error, display not > 9 %d", dis));
return 1;
}
g_sck = socket(PF_LOCAL, SOCK_STREAM, 0);
if (g_sck == -1)
{
LLOGLN(0, ("connect_to_chansrv: error, socket failed"));
return 1;
}
memset(&saddr, 0, sizeof(struct sockaddr_un));
saddr.sun_family = AF_UNIX;
bytes = sizeof(saddr.sun_path);
snprintf(saddr.sun_path, bytes, "%s/.pcsc%d/pcscd.comm", home_str, dis);
saddr.sun_path[bytes - 1] = 0;
LLOGLN(0, ("connect_to_chansrv: connecting to %s", saddr.sun_path));
psaddr = (struct sockaddr *) &saddr;
bytes = sizeof(struct sockaddr_un);
error = connect(g_sck, psaddr, bytes);
if (error == 0)
{
}
else
{
perror("connect_to_chansrv");
close(g_sck);
g_sck = -1;
LLOGLN(0, ("connect_to_chansrv: error, open %s", saddr.sun_path));
return 1;
}
return 0;
}
/*****************************************************************************/
static int
send_message(int code, char *data, int bytes)
{
char header[8];
pthread_mutex_lock(&g_mutex);
SET_UINT32(header, 0, bytes);
SET_UINT32(header, 4, code);
if (send(g_sck, header, 8, 0) != 8)
{
pthread_mutex_unlock(&g_mutex);
return 1;
}
if (send(g_sck, data, bytes, 0) != bytes)
{
pthread_mutex_unlock(&g_mutex);
return 1;
}
pthread_mutex_unlock(&g_mutex);
return 0;
}
/*****************************************************************************/
static int
get_message(int *code, char *data, int *bytes)
{
char header[8];
int max_bytes;
int error;
int recv_rv;
int max;
int lcode;
struct timeval time;
fd_set rd_set;
LLOGLN(10, ("get_message:"));
max = g_sck + 1;
while (1)
{
LLOGLN(10, ("get_message: loop"));
time.tv_sec = 1;
time.tv_usec = 0;
FD_ZERO(&rd_set);
FD_SET(((unsigned int)g_sck), &rd_set);
error = select(max, &rd_set, 0, 0, &time);
if (error == 1)
{
pthread_mutex_lock(&g_mutex);
time.tv_sec = 0;
time.tv_usec = 0;
FD_ZERO(&rd_set);
FD_SET(((unsigned int)g_sck), &rd_set);
error = select(max, &rd_set, 0, 0, &time);
if (error == 1)
{
/* just take a look at the next message */
recv_rv = recv(g_sck, header, 8, MSG_PEEK);
if (recv_rv == 8)
{
lcode = GET_UINT32(header, 4);
if (lcode == *code)
{
/* still have mutex lock */
break;
}
else
{
LLOGLN(10, ("get_message: lcode %d *code %d",
lcode, *code));
}
}
else if (recv_rv == 0)
{
pthread_mutex_unlock(&g_mutex);
LLOGLN(0, ("get_message: recv_rv 0, disconnect"));
return 1;
}
else
{
LLOGLN(10, ("get_message: recv_rv %d", recv_rv));
}
}
else
{
LLOGLN(10, ("get_message: select return %d", error));
}
pthread_mutex_unlock(&g_mutex);
usleep(1000);
}
}
if (recv(g_sck, header, 8, 0) != 8)
{
pthread_mutex_unlock(&g_mutex);
return 1;
}
max_bytes = *bytes;
*bytes = GET_UINT32(header, 0);
*code = GET_UINT32(header, 4);
if (*bytes > max_bytes)
{
pthread_mutex_unlock(&g_mutex);
return 1;
}
if (recv(g_sck, data, *bytes, 0) != *bytes)
{
pthread_mutex_unlock(&g_mutex);
return 1;
}
pthread_mutex_unlock(&g_mutex);
return 0;
}
/*****************************************************************************/
PCSC_API LONG
SCardEstablishContext(DWORD dwScope, LPCVOID pvReserved1, LPCVOID pvReserved2,
LPSCARDCONTEXT phContext)
{
char msg[256];
DWORD context;
int code;
int bytes;
int status;
LLOGLN(10, ("SCardEstablishContext:"));
if (g_sck == -1)
{
if (connect_to_chansrv() != 0)
{
LLOGLN(0, ("SCardEstablishContext: error, can not connect "
"to chansrv"));
return SCARD_F_INTERNAL_ERROR;
}
}
SET_UINT32(msg, 0, dwScope);
if (send_message(SCARD_ESTABLISH_CONTEXT, msg, 4) != 0)
{
LLOGLN(0, ("SCardEstablishContext: error, send_message"));
return SCARD_F_INTERNAL_ERROR;
}
bytes = 256;
code = SCARD_ESTABLISH_CONTEXT;
if (get_message(&code, msg, &bytes) != 0)
{
LLOGLN(0, ("SCardEstablishContext: error, get_message"));
return SCARD_F_INTERNAL_ERROR;
}
if ((code != SCARD_ESTABLISH_CONTEXT) || (bytes != 8))
{
LLOGLN(0, ("SCardEstablishContext: error, bad code"));
return SCARD_F_INTERNAL_ERROR;
}
context = GET_UINT32(msg, 0);
status = GET_UINT32(msg, 4);
LLOGLN(10, ("SCardEstablishContext: got context 0x%8.8x", context));
*phContext = context;
return status;
}
/*****************************************************************************/
PCSC_API LONG
SCardReleaseContext(SCARDCONTEXT hContext)
{
char msg[256];
int code;
int bytes;
int status;
LLOGLN(10, ("SCardReleaseContext:"));
if (g_sck == -1)
{
LLOGLN(0, ("SCardReleaseContext: error, not connected"));
return SCARD_F_INTERNAL_ERROR;
}
SET_UINT32(msg, 0, hContext);
if (send_message(SCARD_RELEASE_CONTEXT, msg, 4) != 0)
{
LLOGLN(0, ("SCardReleaseContext: error, send_message"));
return SCARD_F_INTERNAL_ERROR;
}
bytes = 256;
code = SCARD_RELEASE_CONTEXT;
if (get_message(&code, msg, &bytes) != 0)
{
LLOGLN(0, ("SCardReleaseContext: error, get_message"));
return SCARD_F_INTERNAL_ERROR;
}
if ((code != SCARD_RELEASE_CONTEXT) || (bytes != 4))
{
LLOGLN(0, ("SCardReleaseContext: error, bad code"));
return SCARD_F_INTERNAL_ERROR;
}
status = GET_UINT32(msg, 0);
LLOGLN(10, ("SCardReleaseContext: got status 0x%8.8x", status));
return status;
}
/*****************************************************************************/
PCSC_API LONG
SCardIsValidContext(SCARDCONTEXT hContext)
{
LLOGLN(10, ("SCardIsValidContext:"));
if (g_sck == -1)
{
LLOGLN(0, ("SCardIsValidContext: error, not connected"));
return SCARD_F_INTERNAL_ERROR;
}
return SCARD_S_SUCCESS;
}
/*****************************************************************************/
PCSC_API LONG
SCardConnect(SCARDCONTEXT hContext, LPCSTR szReader, DWORD dwShareMode,
DWORD dwPreferredProtocols, LPSCARDHANDLE phCard,
LPDWORD pdwActiveProtocol)
{
char msg[256];
int code;
int bytes;
int status;
int offset;
LLOGLN(10, ("SCardConnect:"));
LLOGLN(10, ("SCardConnect: hContext 0x%8.8x szReader %s dwShareMode %d "
"dwPreferredProtocols %d",
hContext, szReader, dwShareMode, dwPreferredProtocols));
if (g_sck == -1)
{
LLOGLN(0, ("SCardConnect: error, not connected"));
return SCARD_F_INTERNAL_ERROR;
}
offset = 0;
SET_UINT32(msg, offset, hContext);
offset += 4;
bytes = strlen(szReader);
if (bytes > 99)
{
LLOGLN(0, ("SCardConnect: error, name too long"));
return SCARD_F_INTERNAL_ERROR;
}
memcpy(msg + offset, szReader, bytes);
memset(msg + offset + bytes, 0, 100 - bytes);
offset += 100;
SET_UINT32(msg, offset, dwShareMode);
offset += 4;
SET_UINT32(msg, offset, dwPreferredProtocols);
offset += 4;
if (send_message(SCARD_CONNECT, msg, offset) != 0)
{
LLOGLN(0, ("SCardConnect: error, send_message"));
return SCARD_F_INTERNAL_ERROR;
}
bytes = 256;
code = SCARD_CONNECT;
if (get_message(&code, msg, &bytes) != 0)
{
LLOGLN(0, ("SCardConnect: error, get_message"));
return SCARD_F_INTERNAL_ERROR;
}
if (code != SCARD_CONNECT)
{
LLOGLN(0, ("SCardConnect: error, bad code"));
return SCARD_F_INTERNAL_ERROR;
}
*phCard = GET_UINT32(msg, 0);
*pdwActiveProtocol = GET_UINT32(msg, 4);
status = GET_UINT32(msg, 8);
LLOGLN(10, ("SCardConnect: got status 0x%8.8x hCard 0x%8.8x "
"dwActiveProtocol %d",
status, *phCard, *pdwActiveProtocol));
return status;
}
/*****************************************************************************/
PCSC_API LONG
SCardReconnect(SCARDHANDLE hCard, DWORD dwShareMode,
DWORD dwPreferredProtocols, DWORD dwInitialization,
LPDWORD pdwActiveProtocol)
{
LLOGLN(0, ("SCardReconnect:"));
if (g_sck == -1)
{
LLOGLN(0, ("SCardReconnect: error, not connected"));
return SCARD_F_INTERNAL_ERROR;
}
return SCARD_S_SUCCESS;
}
/*****************************************************************************/
PCSC_API LONG
SCardDisconnect(SCARDHANDLE hCard, DWORD dwDisposition)
{
char msg[256];
int code;
int bytes;
int status;
LLOGLN(10, ("SCardDisconnect: hCard 0x%8.8x dwDisposition %d",
hCard, dwDisposition));
if (g_sck == -1)
{
LLOGLN(0, ("SCardDisconnect: error, not connected"));
return SCARD_F_INTERNAL_ERROR;
}
SET_UINT32(msg, 0, hCard);
SET_UINT32(msg, 4, dwDisposition);
if (send_message(SCARD_DISCONNECT, msg, 8) != 0)
{
LLOGLN(0, ("SCardDisconnect: error, send_message"));
return SCARD_F_INTERNAL_ERROR;
}
bytes = 256;
code = SCARD_DISCONNECT;
if (get_message(&code, msg, &bytes) != 0)
{
LLOGLN(0, ("SCardDisconnect: error, get_message"));
return SCARD_F_INTERNAL_ERROR;
}
if ((code != SCARD_DISCONNECT) || (bytes != 4))
{
LLOGLN(0, ("SCardDisconnect: error, bad code"));
return SCARD_F_INTERNAL_ERROR;
}
status = GET_UINT32(msg, 0);
LLOGLN(10, ("SCardDisconnect: got status 0x%8.8x", status));
return status;
}
/*****************************************************************************/
PCSC_API LONG
SCardBeginTransaction(SCARDHANDLE hCard)
{
char msg[256];
int code;
int bytes;
int status;
LLOGLN(10, ("SCardBeginTransaction: hCard 0x%8.8x", hCard));
if (hCard == 0)
{
LLOGLN(0, ("SCardBeginTransaction: error, bad hCard"));
return SCARD_F_INTERNAL_ERROR;
}
if (g_sck == -1)
{
LLOGLN(0, ("SCardBeginTransaction: error, not connected"));
return SCARD_F_INTERNAL_ERROR;
}
SET_UINT32(msg, 0, hCard);
if (send_message(SCARD_BEGIN_TRANSACTION, msg, 4) != 0)
{
LLOGLN(0, ("SCardBeginTransaction: error, send_message"));
return SCARD_F_INTERNAL_ERROR;
}
bytes = 256;
code = SCARD_BEGIN_TRANSACTION;
if (get_message(&code, msg, &bytes) != 0)
{
LLOGLN(0, ("SCardBeginTransaction: error, get_message"));
return SCARD_F_INTERNAL_ERROR;
}
if ((code != SCARD_BEGIN_TRANSACTION) || (bytes != 4))
{
LLOGLN(0, ("SCardBeginTransaction: error, bad code"));
return SCARD_F_INTERNAL_ERROR;
}
status = GET_UINT32(msg, 0);
LLOGLN(10, ("SCardBeginTransaction: got status 0x%8.8x", status));
return status;
}
/*****************************************************************************/
PCSC_API LONG
SCardEndTransaction(SCARDHANDLE hCard, DWORD dwDisposition)
{
char msg[256];
int code;
int bytes;
int status;
LLOGLN(10, ("SCardEndTransaction:"));
if (g_sck == -1)
{
LLOGLN(0, ("SCardEndTransaction: error, not connected"));
return SCARD_F_INTERNAL_ERROR;
}
SET_UINT32(msg, 0, hCard);
SET_UINT32(msg, 4, dwDisposition);
if (send_message(SCARD_END_TRANSACTION, msg, 8) != 0)
{
LLOGLN(0, ("SCardEndTransaction: error, send_message"));
return SCARD_F_INTERNAL_ERROR;
}
bytes = 256;
code = SCARD_END_TRANSACTION;
if (get_message(&code, msg, &bytes) != 0)
{
LLOGLN(0, ("SCardEndTransaction: error, get_message"));
return SCARD_F_INTERNAL_ERROR;
}
if ((code != SCARD_END_TRANSACTION) || (bytes != 4))
{
LLOGLN(0, ("SCardEndTransaction: error, bad code"));
return SCARD_F_INTERNAL_ERROR;
}
status = GET_UINT32(msg, 0);
LLOGLN(10, ("SCardEndTransaction: got status 0x%8.8x", status));
return status;
}
/*****************************************************************************/
PCSC_API LONG
SCardStatus(SCARDHANDLE hCard, LPSTR mszReaderName, LPDWORD pcchReaderLen,
LPDWORD pdwState, LPDWORD pdwProtocol, LPBYTE pbAtr,
LPDWORD pcbAtrLen)
{
char *msg;
int code;
int bytes;
int status;
int offset;
int cchReaderLen;
int to_copy;
LLOGLN(10, ("SCardStatus:"));
if (hCard == 0)
{
LLOGLN(0, ("SCardStatus: error, bad hCard"));
return SCARD_F_INTERNAL_ERROR;
}
if (g_sck == -1)
{
LLOGLN(0, ("SCardStatus: error, not connected"));
return SCARD_F_INTERNAL_ERROR;
}
LLOGLN(10, (" hCard 0x%8.8x", hCard));
LLOGLN(10, (" cchReaderLen %d", *pcchReaderLen));
LLOGLN(10, (" cbAtrLen %d", *pcbAtrLen));
cchReaderLen = *pcchReaderLen;
msg = (char *) malloc(8192);
SET_UINT32(msg, 0, hCard);
SET_UINT32(msg, 4, cchReaderLen);
SET_UINT32(msg, 8, *pcbAtrLen);
if (send_message(SCARD_STATUS, msg, 12) != 0)
{
LLOGLN(0, ("SCardStatus: error, send_message"));
free(msg);
return SCARD_F_INTERNAL_ERROR;
}
bytes = 8192;
code = SCARD_STATUS;
if (get_message(&code, msg, &bytes) != 0)
{
LLOGLN(0, ("SCardStatus: error, get_message"));
free(msg);
return SCARD_F_INTERNAL_ERROR;
}
if (code != SCARD_STATUS)
{
LLOGLN(0, ("SCardStatus: error, bad code"));
free(msg);
return SCARD_F_INTERNAL_ERROR;
}
LLOGLN(10, ("SCardStatus: cchReaderLen in %d", *pcchReaderLen));
offset = 0;
*pcchReaderLen = GET_UINT32(msg, offset);
LLOGLN(10, ("SCardStatus: cchReaderLen out %d", *pcchReaderLen));
offset += 4;
if (cchReaderLen > 0)
{
to_copy = cchReaderLen - 1;
if (*pcchReaderLen < to_copy)
{
to_copy = *pcchReaderLen;
}
memcpy(mszReaderName, msg + offset, to_copy);
mszReaderName[to_copy] = 0;
}
LLOGLN(10, ("SCardStatus: mszReaderName out %s", mszReaderName));
offset += *pcchReaderLen;
*pdwState = GET_UINT32(msg, offset);
LLOGLN(10, ("SCardStatus: dwState %d", *pdwState));
offset += 4;
*pdwProtocol = GET_UINT32(msg, offset);
LLOGLN(10, ("SCardStatus: dwProtocol %d", *pdwProtocol));
offset += 4;
*pcbAtrLen = GET_UINT32(msg, offset);
offset += 4;
LLOGLN(10, ("SCardStatus: cbAtrLen %d", *pcbAtrLen));
memcpy(pbAtr, msg + offset, *pcbAtrLen);
offset += *pcbAtrLen;
status = GET_UINT32(msg, offset);
LLOGLN(10, ("SCardStatus: status %d", status));
offset += 4;
free(msg);
return status;
}
/*****************************************************************************/
PCSC_API LONG
SCardGetStatusChange(SCARDCONTEXT hContext, DWORD dwTimeout,
LPSCARD_READERSTATE rgReaderStates, DWORD cReaders)
{
char *msg;
const char *rname;
int bytes;
int code;
int index;
int offset;
int str_len;
int status;
int dwCurrentState;
int dwEventState;
int cbAtr;
char atr[36];
LLOGLN(10, ("SCardGetStatusChange:"));
LLOGLN(10, (" dwTimeout %d cReaders %d", dwTimeout, cReaders));
if (g_sck == -1)
{
LLOGLN(0, ("SCardGetStatusChange: error, not connected"));
return SCARD_F_INTERNAL_ERROR;
}
msg = (char *) malloc(8192);
SET_UINT32(msg, 0, hContext);
SET_UINT32(msg, 4, dwTimeout);
SET_UINT32(msg, 8, cReaders);
offset = 12;
for (index = 0; index < cReaders; index++)
{
rgReaderStates[index].dwCurrentState &= ~2;
rgReaderStates[index].dwEventState &= ~2;
rname = rgReaderStates[index].szReader;
if (strcmp(rname, "\\\\?PnP?\\Notification") == 0)
{
LLOGLN(10, (" \\\\?PnP?\\Notification present"));
dwCurrentState = 0;
dwEventState = 0;
cbAtr = 0;
memset(atr, 0, 36);
}
else
{
dwCurrentState = rgReaderStates[index].dwCurrentState;
dwEventState = rgReaderStates[index].dwEventState;
cbAtr = rgReaderStates[index].cbAtr;
memset(atr, 0, 36);
memcpy(atr, rgReaderStates[index].rgbAtr, 33);
}
str_len = strlen(rname);
str_len = LMIN(str_len, 99);
memset(msg + offset, 0, 100);
memcpy(msg + offset, rname, str_len);
LLOGLN(10, (" in szReader %s", rname));
offset += 100;
LLOGLN(10, (" in dwCurrentState 0x%8.8x", dwCurrentState));
SET_UINT32(msg, offset, dwCurrentState);
offset += 4;
LLOGLN(10, (" in dwEventState 0x%8.8x", dwEventState));
SET_UINT32(msg, offset, dwEventState);
offset += 4;
LLOGLN(10, (" in cbAtr %d", cbAtr));
SET_UINT32(msg, offset, cbAtr);
offset += 4;
memcpy(msg + offset, atr, 36);
offset += 36;
}
if (send_message(SCARD_GET_STATUS_CHANGE, msg, offset) != 0)
{
LLOGLN(0, ("SCardGetStatusChange: error, send_message"));
free(msg);
return SCARD_F_INTERNAL_ERROR;
}
bytes = 8192;
code = SCARD_GET_STATUS_CHANGE;
if (get_message(&code, msg, &bytes) != 0)
{
LLOGLN(0, ("SCardGetStatusChange: error, get_message"));
free(msg);
return SCARD_F_INTERNAL_ERROR;
}
if (code != SCARD_GET_STATUS_CHANGE)
{
LLOGLN(0, ("SCardGetStatusChange: error, bad code"));
free(msg);
return SCARD_F_INTERNAL_ERROR;
}
cReaders = GET_UINT32(msg, 0);
offset = 4;
LLOGLN(10, ("SCardGetStatusChange: got back cReaders %d", cReaders));
for (index = 0; index < cReaders; index++)
{
rname = rgReaderStates[index].szReader;
#if 1
if (strcmp(rname, "\\\\?PnP?\\Notification") == 0)
{
LLOGLN(10, (" out szReader %s", rgReaderStates[index].szReader));
dwCurrentState = GET_UINT32(msg, offset);
rgReaderStates[index].dwCurrentState = dwCurrentState;
offset += 4;
LLOGLN(10, (" out dwCurrentState 0x%8.8x", dwCurrentState));
// disable PnP for now
dwEventState = 4; // GET_UINT32(msg, offset);
rgReaderStates[index].dwEventState = dwEventState;
offset += 4;
LLOGLN(10, (" out dwEventState 0x%8.8x", dwEventState));
cbAtr = GET_UINT32(msg, offset);
rgReaderStates[index].cbAtr = cbAtr;
offset += 4;
LLOGLN(10, (" out cbAtr %d", cbAtr));
memcpy(rgReaderStates[index].rgbAtr, msg + offset, 33);
offset += 36;
}
else
#endif
{
LLOGLN(10, (" out szReader %s", rgReaderStates[index].szReader));
dwCurrentState = GET_UINT32(msg, offset);
rgReaderStates[index].dwCurrentState = dwCurrentState;
offset += 4;
LLOGLN(10, (" out dwCurrentState 0x%8.8x", dwCurrentState));
dwEventState = GET_UINT32(msg, offset);
rgReaderStates[index].dwEventState = dwEventState;
offset += 4;
LLOGLN(10, (" out dwEventState 0x%8.8x", dwEventState));
cbAtr = GET_UINT32(msg, offset);
rgReaderStates[index].cbAtr = cbAtr;
offset += 4;
LLOGLN(10, (" out cbAtr %d", cbAtr));
memcpy(rgReaderStates[index].rgbAtr, msg + offset, 33);
offset += 36;
}
}
status = GET_UINT32(msg, offset);
offset += 4;
free(msg);
return status;
}
/*****************************************************************************/
PCSC_API LONG
SCardControl(SCARDHANDLE hCard, DWORD dwControlCode, LPCVOID pbSendBuffer,
DWORD cbSendLength, LPVOID pbRecvBuffer, DWORD cbRecvLength,
LPDWORD lpBytesReturned)
{
char *msg;
int bytes;
int code;
int offset;
int status = 0;
LLOGLN(10, ("SCardControl:"));
if (g_sck == -1)
{
LLOGLN(0, ("SCardControl: error, not connected"));
return SCARD_F_INTERNAL_ERROR;
}
LLOGLN(10, (" hCard 0x%8.8x", hCard));
LLOGLN(10, (" dwControlCode 0x%8.8x", dwControlCode));
LLOGLN(10, (" cbSendLength %d", cbSendLength));
LLOGLN(10, (" cbRecvLength %d", cbRecvLength));
/* #define SCARD_CTL_CODE(code) (0x42000000 + (code))
control_code = (control_code & 0x3ffc) >> 2;
control_code = SCARD_CTL_CODE(control_code); */
/* PCSC to Windows control code conversion */
dwControlCode = dwControlCode - 0x42000000;
dwControlCode = dwControlCode << 2;
dwControlCode = dwControlCode | (49 << 16);
LLOGLN(10, (" MS dwControlCode 0x%8.8x", dwControlCode));
msg = (char *) malloc(8192);
offset = 0;
SET_UINT32(msg, offset, hCard);
offset += 4;
SET_UINT32(msg, offset, dwControlCode);
offset += 4;
SET_UINT32(msg, offset, cbSendLength);
offset += 4;
memcpy(msg + offset, pbSendBuffer, cbSendLength);
offset += cbSendLength;
SET_UINT32(msg, offset, cbRecvLength);
offset += 4;
if (send_message(SCARD_CONTROL, msg, offset) != 0)
{
LLOGLN(0, ("SCardControl: error, send_message"));
free(msg);
return SCARD_F_INTERNAL_ERROR;
}
bytes = 8192;
code = SCARD_CONTROL;
if (get_message(&code, msg, &bytes) != 0)
{
LLOGLN(0, ("SCardControl: error, get_message"));
free(msg);
return SCARD_F_INTERNAL_ERROR;
}
if (code != SCARD_CONTROL)
{
LLOGLN(0, ("SCardControl: error, bad code"));
free(msg);
return SCARD_F_INTERNAL_ERROR;
}
offset = 0;
*lpBytesReturned = GET_UINT32(msg, offset);
LLOGLN(10, (" cbRecvLength %d", *lpBytesReturned));
offset += 4;
memcpy(pbRecvBuffer, msg + offset, *lpBytesReturned);
offset += *lpBytesReturned;
status = GET_UINT32(msg, offset);
free(msg);
return status;
}
/*****************************************************************************/
PCSC_API LONG
SCardTransmit(SCARDHANDLE hCard, const SCARD_IO_REQUEST *pioSendPci,
LPCBYTE pbSendBuffer, DWORD cbSendLength,
SCARD_IO_REQUEST *pioRecvPci, LPBYTE pbRecvBuffer,
LPDWORD pcbRecvLength)
{
char *msg;
int bytes;
int code;
int offset;
int status;
int extra_len;
int got_recv_pci;
LLOGLN(10, ("SCardTransmit:"));
if (g_sck == -1)
{
LLOGLN(0, ("SCardTransmit: error, not connected"));
return SCARD_F_INTERNAL_ERROR;
}
LLOGLN(10, (" hCard 0x%8.8x", hCard));
LLOGLN(10, (" cbSendLength %d", cbSendLength));
LLOGLN(10, (" cbRecvLength %d", *pcbRecvLength));
LLOGLN(10, (" pioSendPci->dwProtocol %d", (int)(pioSendPci->dwProtocol)));
LLOGLN(10, (" pioSendPci->cbPciLength %d", (int)(pioSendPci->cbPciLength)));
LLOGLN(10, (" pioRecvPci %p", pioRecvPci));
if (pioRecvPci != 0)
{
LLOGLN(10, (" pioRecvPci->dwProtocol %d", (int)(pioRecvPci->dwProtocol)));
LLOGLN(10, (" pioRecvPci->cbPciLength %d", (int)(pioRecvPci->cbPciLength)));
}
msg = (char *) malloc(8192);
offset = 0;
SET_UINT32(msg, offset, hCard);
offset += 4;
SET_UINT32(msg, offset, pioSendPci->dwProtocol);
offset += 4;
SET_UINT32(msg, offset, pioSendPci->cbPciLength);
offset += 4;
extra_len = pioSendPci->cbPciLength - 8;
SET_UINT32(msg, offset, extra_len);
offset += 4;
memcpy(msg + offset, pioSendPci + 1, extra_len);
offset += extra_len;
SET_UINT32(msg, offset, cbSendLength);
offset += 4;
memcpy(msg + offset, pbSendBuffer, cbSendLength);
offset += cbSendLength;
// TODO figure out why recv pci does not work
if (1 || (pioRecvPci == 0) || (pioRecvPci->cbPciLength < 8))
{
got_recv_pci = 0;
SET_UINT32(msg, offset, 0); /* dwProtocol */
offset += 4;
SET_UINT32(msg, offset, 0); /* cbPciLength */
offset += 4;
SET_UINT32(msg, offset, 0); /* extra_len */
offset += 4;
}
else
{
got_recv_pci = 1;
SET_UINT32(msg, offset, pioRecvPci->dwProtocol);
offset += 4;
SET_UINT32(msg, offset, pioRecvPci->cbPciLength);
offset += 4;
extra_len = pioRecvPci->cbPciLength - 8;
SET_UINT32(msg, offset, extra_len);
offset += 4;
memcpy(msg + offset, pioRecvPci + 1, extra_len);
offset += extra_len;
}
SET_UINT32(msg, offset, *pcbRecvLength);
offset += 4;
if (send_message(SCARD_TRANSMIT, msg, offset) != 0)
{
LLOGLN(0, ("SCardTransmit: error, send_message"));
free(msg);
return SCARD_F_INTERNAL_ERROR;
}
bytes = 8192;
code = SCARD_TRANSMIT;
if (get_message(&code, msg, &bytes) != 0)
{
LLOGLN(0, ("SCardTransmit: error, get_message"));
free(msg);
return SCARD_F_INTERNAL_ERROR;
}
if (code != SCARD_TRANSMIT)
{
LLOGLN(0, ("SCardTransmit: error, bad code"));
free(msg);
return SCARD_F_INTERNAL_ERROR;
}
offset = 0;
if (got_recv_pci == 0)
{
offset += 8;
extra_len = GET_UINT32(msg, offset);
offset += 4;
offset += extra_len;
}
else
{
pioRecvPci->dwProtocol = GET_UINT32(msg, offset);
offset += 4;
pioRecvPci->cbPciLength = GET_UINT32(msg, offset);
offset += 4;
extra_len = GET_UINT32(msg, offset);
offset += 4;
offset += extra_len;
}
*pcbRecvLength = GET_UINT32(msg, offset);
offset += 4;
LLOGLN(10, (" cbRecvLength %d", *pcbRecvLength));
memcpy(pbRecvBuffer, msg + offset, *pcbRecvLength);
offset += *pcbRecvLength;
status = GET_UINT32(msg, offset);
free(msg);
return status;
}
/*****************************************************************************/
PCSC_API LONG
SCardListReaderGroups(SCARDCONTEXT hContext, LPSTR mszGroups,
LPDWORD pcchGroups)
{
LLOGLN(10, ("SCardListReaderGroups:"));
if (g_sck == -1)
{
LLOGLN(0, ("SCardListReaderGroups: error, not connected"));
return SCARD_F_INTERNAL_ERROR;
}
return SCARD_S_SUCCESS;
}
/*****************************************************************************/
PCSC_API LONG
SCardListReaders(SCARDCONTEXT hContext, LPCSTR mszGroups, LPSTR mszReaders,
LPDWORD pcchReaders)
{
char* msg;
char* reader_names;
int reader_names_index;
int code;
int bytes;
int num_readers;
int status;
int offset;
int index;
int bytes_groups;
int val;
int llen;
char reader[100];
LLOGLN(10, ("SCardListReaders:"));
LLOGLN(10, ("SCardListReaders: mszGroups %s", mszGroups));
LLOGLN(10, ("SCardListReaders: *pcchReaders %d", *pcchReaders));
if (g_sck == -1)
{
LLOGLN(0, ("SCardListReaders: error, not connected"));
return SCARD_F_INTERNAL_ERROR;
}
msg = (char *) malloc(8192);
offset = 0;
SET_UINT32(msg, offset, hContext);
offset += 4;
bytes_groups = 0;
if (mszGroups != 0)
{
bytes_groups = strlen(mszGroups);
}
SET_UINT32(msg, offset, bytes_groups);
offset += 4;
memcpy(msg + offset, mszGroups, bytes_groups);
offset += bytes_groups;
val = *pcchReaders;
SET_UINT32(msg, offset, val);
offset += 4;
if (send_message(SCARD_LIST_READERS, msg, offset) != 0)
{
LLOGLN(0, ("SCardListReaders: error, send_message"));
free(msg);
return SCARD_F_INTERNAL_ERROR;
}
bytes = 8192;
code = SCARD_LIST_READERS;
if (get_message(&code, msg, &bytes) != 0)
{
LLOGLN(0, ("SCardListReaders: error, get_message"));
free(msg);
return SCARD_F_INTERNAL_ERROR;
}
if (code != SCARD_LIST_READERS)
{
LLOGLN(0, ("SCardListReaders: error, bad code"));
free(msg);
return SCARD_F_INTERNAL_ERROR;
}
offset = 0;
llen = GET_UINT32(msg, offset);
offset += 4;
num_readers = GET_UINT32(msg, offset);
offset += 4;
LLOGLN(10, ("SCardListReaders: mszReaders %p pcchReaders %p num_readers %d",
mszReaders, pcchReaders, num_readers));
reader_names = (char *) malloc(8192);
reader_names_index = 0;
for (index = 0; index < num_readers; index++)
{
memcpy(reader, msg + offset, 100);
bytes = strlen(reader);
memcpy(reader_names + reader_names_index, reader, bytes);
reader_names_index += bytes;
reader_names[reader_names_index] = 0;
reader_names_index++;
offset += 100;
LLOGLN(10, ("SCardListReaders: readername %s", reader));
}
reader_names[reader_names_index] = 0;
reader_names_index++;
status = GET_UINT32(msg, offset);
LLOGLN(10, ("SCardListReaders: status 0x%8.8x", status));
offset += 4;
if (mszReaders == 0)
{
reader_names_index = llen / 2;
}
if (pcchReaders != 0)
{
*pcchReaders = reader_names_index;
}
if (mszReaders != 0)
{
memcpy(mszReaders, reader_names, reader_names_index);
}
free(msg);
free(reader_names);
return status;
}
/*****************************************************************************/
PCSC_API LONG
SCardFreeMemory(SCARDCONTEXT hContext, LPCVOID pvMem)
{
LLOGLN(0, ("SCardFreeMemory:"));
if (g_sck == -1)
{
LLOGLN(0, ("SCardFreeMemory: error, not connected"));
return SCARD_F_INTERNAL_ERROR;
}
return SCARD_S_SUCCESS;
}
/*****************************************************************************/
PCSC_API LONG
SCardCancel(SCARDCONTEXT hContext)
{
char msg[256];
int code;
int bytes;
int status;
LLOGLN(10, ("SCardCancel:"));
if (g_sck == -1)
{
LLOGLN(0, ("SCardCancel: error, not connected"));
return SCARD_F_INTERNAL_ERROR;
}
SET_UINT32(msg, 0, hContext);
if (send_message(SCARD_CANCEL, msg, 4) != 0)
{
LLOGLN(0, ("SCardCancel: error, send_message"));
return SCARD_F_INTERNAL_ERROR;
}
bytes = 256;
code = SCARD_CANCEL;
if (get_message(&code, msg, &bytes) != 0)
{
LLOGLN(0, ("SCardCancel: error, get_message"));
return SCARD_F_INTERNAL_ERROR;
}
if ((code != SCARD_RELEASE_CONTEXT) || (bytes != 4))
{
LLOGLN(0, ("SCardCancel: error, bad code"));
return SCARD_F_INTERNAL_ERROR;
}
status = GET_UINT32(msg, 0);
LLOGLN(10, ("SCardCancel: got status 0x%8.8x", status));
return status;
}
/*****************************************************************************/
PCSC_API LONG
SCardGetAttrib(SCARDHANDLE hCard, DWORD dwAttrId, LPBYTE pbAttr,
LPDWORD pcbAttrLen)
{
LLOGLN(0, ("SCardGetAttrib:"));
if (g_sck == -1)
{
LLOGLN(0, ("SCardGetAttrib: error, not connected"));
return SCARD_F_INTERNAL_ERROR;
}
return SCARD_S_SUCCESS;
}
/*****************************************************************************/
PCSC_API LONG
SCardSetAttrib(SCARDHANDLE hCard, DWORD dwAttrId, LPCBYTE pbAttr,
DWORD cbAttrLen)
{
LLOGLN(0, ("SCardSetAttrib:"));
if (g_sck == -1)
{
LLOGLN(0, ("SCardSetAttrib: error, not connected"));
return SCARD_F_INTERNAL_ERROR;
}
return SCARD_S_SUCCESS;
}
/*****************************************************************************/
PCSC_API char *
pcsc_stringify_error(const long code)
{
LLOGLN(10, ("pcsc_stringify_error: 0x%8.8x", (int)code));
switch (code)
{
case SCARD_S_SUCCESS:
snprintf(g_error_str, 511, "Command successful.");
break;
case SCARD_F_INTERNAL_ERROR:
snprintf(g_error_str, 511, "Internal error.");
break;
default:
snprintf(g_error_str, 511, "error 0x%8.8x", (int)code);
break;
}
g_error_str[511] = 0;
return g_error_str;
}
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