53 static int contextMaxThreadCounter = PCSC_MAX_CONTEXT_THREADS;
54 static int contextMaxCardHandles = PCSC_MAX_CONTEXT_CARD_HANDLES;
74 static LONG MSGCleanupClient(
SCONTEXT *);
76 static void ContextThread(LPVOID pdwIndex);
80 static int contextsListhContext_seeker(
const void *el,
const void *key)
84 if ((el == NULL) || (key == NULL))
86 Log3(PCSC_LOG_CRITICAL,
"called with NULL pointer: el=%p, key=%p",
91 if (currentContext->hContext == *(int32_t *)key)
96 LONG ContextsInitialize(
int customMaxThreadCounter,
97 int customMaxThreadCardHandles)
101 if (customMaxThreadCounter != 0)
102 contextMaxThreadCounter = customMaxThreadCounter;
104 if (customMaxThreadCardHandles != 0)
105 contextMaxCardHandles = customMaxThreadCardHandles;
107 lrv = list_init(&contextsList);
110 Log2(PCSC_LOG_CRITICAL,
"list_init failed with return value: %d", lrv);
113 lrv = list_attributes_seeker(& contextsList, contextsListhContext_seeker);
116 Log2(PCSC_LOG_CRITICAL,
117 "list_attributes_seeker failed with return value: %d", lrv);
126 void ContextsDeinitialize(
void)
129 listSize = list_size(&contextsList);
130 Log2(PCSC_LOG_DEBUG,
"remaining threads: %d", listSize);
133 list_destroy(&contextsList);
156 listSize = list_size(&contextsList);
157 if (listSize >= contextMaxThreadCounter)
159 Log2(PCSC_LOG_CRITICAL,
"Too many context running: %d", listSize);
164 newContext = malloc(
sizeof(*newContext));
165 if (NULL == newContext)
167 Log1(PCSC_LOG_CRITICAL,
"Could not allocate new context");
170 memset(newContext, 0,
sizeof(*newContext));
175 lrv = list_init(&newContext->cardsList);
178 Log2(PCSC_LOG_CRITICAL,
"list_init failed with return value: %d", lrv);
183 list_attributes_copy(&newContext->cardsList, list_meter_int32_t, 1);
190 lrv = list_attributes_comparator(&newContext->cardsList,
191 list_comparator_int32_t);
194 Log2(PCSC_LOG_CRITICAL,
195 "list_attributes_comparator failed with return value: %d", lrv);
196 list_destroy(&newContext->cardsList);
202 lrv = list_append(&contextsList, newContext);
205 Log2(PCSC_LOG_CRITICAL,
"list_append failed with return value: %d",
207 list_destroy(&newContext->cardsList);
211 rv = ThreadCreate(&newContext->
pthThread, THREAD_ATTR_DETACHED,
212 (PCSCLITE_THREAD_FUNCTION( )) ContextThread, (LPVOID) newContext);
217 Log2(PCSC_LOG_CRITICAL,
"ThreadCreate failed: %s", strerror(rv));
218 lrv2 = list_delete(&contextsList, newContext);
220 Log2(PCSC_LOG_CRITICAL,
"list_delete failed with error %d", lrv2);
221 list_destroy(&newContext->cardsList);
238 (void)close(*pdwClientID);
273 "CANCEL_TRANSACTION",
277 "CMD_GET_READERS_STATE",
278 "CMD_WAIT_READER_STATE_CHANGE",
279 "CMD_STOP_WAITING_READER_STATE_CHANGE",
284 #define READ_BODY(v) \
285 if (header.size != sizeof(v)) { goto wrong_length; } \
286 ret = MessageReceive(&v, sizeof(v), filedes); \
287 if (ret != SCARD_S_SUCCESS) { Log2(PCSC_LOG_DEBUG, "Client die: %d", filedes); goto exit; }
289 #define WRITE_BODY(v) \
290 WRITE_BODY_WITH_COMMAND(CommandsText[header.command], v)
291 #define WRITE_BODY_WITH_COMMAND(command, v) \
292 Log4(PCSC_LOG_DEBUG, "%s rv=0x%X for client %d", command, v.rv, filedes); \
293 ret = MessageSend(&v, sizeof(v), filedes);
295 static void ContextThread(LPVOID newContext)
300 Log3(PCSC_LOG_DEBUG,
"Thread is started: dwClientID=%d, threadContext @%p",
311 Log2(PCSC_LOG_DEBUG,
"Client die: %d", filedes);
316 if ((header.command > CMD_ENUM_FIRST)
317 && (header.command < CMD_ENUM_LAST))
318 Log3(PCSC_LOG_DEBUG,
"Received command: %s from client %d",
319 CommandsText[header.command], filedes);
321 switch (header.command)
330 Log3(PCSC_LOG_DEBUG, "Client is protocol version %d:%d",
339 Log3(PCSC_LOG_CRITICAL,
"Client protocol is %d:%d",
340 veStr.major, veStr.minor);
341 Log3(PCSC_LOG_CRITICAL,
"Server protocol is %d:%d",
361 RFWaitForReaderInit();
365 ret =
MessageSend(readerStates,
sizeof(readerStates), filedes);
376 EHRegisterClientForEvent(filedes);
404 hContext = esStr.hContext;
407 esStr.hContext = hContext;
410 esStr.rv = MSGAddContext(esStr.hContext, threadContext);
425 reStr.rv = MSGRemoveContext(reStr.hContext, threadContext);
435 DWORD dwActiveProtocol;
440 dwActiveProtocol = coStr.dwActiveProtocol;
443 coStr.dwShareMode, coStr.dwPreferredProtocols,
444 &hCard, &dwActiveProtocol);
447 coStr.dwActiveProtocol = dwActiveProtocol;
450 coStr.rv = MSGAddHandle(coStr.hContext, coStr.hCard,
460 DWORD dwActiveProtocol;
464 if (MSGCheckHandleAssociation(rcStr.hCard, threadContext))
468 rcStr.dwPreferredProtocols, rcStr.dwInitialization,
470 rcStr.dwActiveProtocol = dwActiveProtocol;
482 if (MSGCheckHandleAssociation(diStr.hCard, threadContext))
488 diStr.rv = MSGRemoveHandle(diStr.hCard, threadContext);
500 if (MSGCheckHandleAssociation(beStr.hCard, threadContext))
515 if (MSGCheckHandleAssociation(enStr.hCard, threadContext))
519 enStr.dwDisposition);
533 psTargetContext = (
SCONTEXT *) list_seek(&contextsList,
536 if (psTargetContext != NULL)
538 uint32_t fd = psTargetContext->dwClientID;
554 if (MSGCheckHandleAssociation(stStr.hCard, threadContext))
558 stStr.rv =
SCardStatus(stStr.hCard, NULL, NULL, NULL,
576 if (MSGCheckHandleAssociation(trStr.hCard, threadContext))
580 if ((trStr.pcbRecvLength > sizeof(pbRecvBuffer))
581 || (trStr.cbSendLength > sizeof(pbSendBuffer)))
582 goto buffer_overflow;
588 Log2(PCSC_LOG_DEBUG,
"Client die: %d", filedes);
592 ioSendPci.
dwProtocol = trStr.ioSendPciProtocol;
594 ioRecvPci.
dwProtocol = trStr.ioRecvPciProtocol;
596 cbRecvLength = trStr.pcbRecvLength;
599 pbSendBuffer, trStr.cbSendLength, &ioRecvPci,
600 pbRecvBuffer, &cbRecvLength);
602 trStr.ioSendPciProtocol = ioSendPci.
dwProtocol;
604 trStr.ioRecvPciProtocol = ioRecvPci.
dwProtocol;
606 trStr.pcbRecvLength = cbRecvLength;
612 ret =
MessageSend(pbRecvBuffer, cbRecvLength, filedes);
621 DWORD dwBytesReturned;
625 if (MSGCheckHandleAssociation(ctStr.hCard, threadContext))
629 if ((ctStr.cbRecvLength > sizeof(pbRecvBuffer))
630 || (ctStr.cbSendLength > sizeof(pbSendBuffer)))
632 goto buffer_overflow;
639 Log2(PCSC_LOG_DEBUG,
"Client die: %d", filedes);
643 dwBytesReturned = ctStr.dwBytesReturned;
645 ctStr.rv =
SCardControl(ctStr.hCard, ctStr.dwControlCode,
646 pbSendBuffer, ctStr.cbSendLength,
647 pbRecvBuffer, ctStr.cbRecvLength,
650 ctStr.dwBytesReturned = dwBytesReturned;
656 ret =
MessageSend(pbRecvBuffer, dwBytesReturned, filedes);
667 if (MSGCheckHandleAssociation(gsStr.hCard, threadContext))
671 if (gsStr.cbAttrLen > sizeof(gsStr.pbAttr))
672 goto buffer_overflow;
674 cbAttrLen = gsStr.cbAttrLen;
677 gsStr.pbAttr, &cbAttrLen);
679 gsStr.cbAttrLen = cbAttrLen;
691 if (MSGCheckHandleAssociation(gsStr.hCard, threadContext))
695 if (gsStr.cbAttrLen > sizeof(gsStr.pbAttr))
696 goto buffer_overflow;
699 gsStr.pbAttr, gsStr.cbAttrLen);
706 Log2(PCSC_LOG_CRITICAL, "Unknown command: %d", header.command);
714 Log2(PCSC_LOG_DEBUG,
"Client die: %d", filedes);
720 Log2(PCSC_LOG_DEBUG,
"Buffer overflow detected: %d", filedes);
723 Log2(PCSC_LOG_DEBUG,
"Wrong length: %d", filedes);
725 (void)close(filedes);
726 (void)MSGCleanupClient(threadContext);
727 (void)pthread_exit((LPVOID) NULL);
730 LONG MSGSignalClient(uint32_t filedes, LONG rv)
735 Log2(PCSC_LOG_DEBUG,
"Signal client: %d", filedes);
738 WRITE_BODY_WITH_COMMAND(
"SIGNAL", waStr)
745 threadContext->hContext = hContext;
754 if (threadContext->hContext != hContext)
758 while (list_size(&threadContext->cardsList) != 0)
767 ptr = list_get_at(&threadContext->cardsList, 0);
770 Log1(PCSC_LOG_CRITICAL,
"list_get_at failed");
773 hCard = *(int32_t *)ptr;
778 rv = RFReaderInfoById(hCard, &rContext);
788 if (hCard != hLockId)
803 rv =
SCardStatus(hCard, NULL, NULL, NULL, NULL, NULL, NULL);
812 lrv = list_delete_at(&threadContext->cardsList, 0);
814 Log2(PCSC_LOG_CRITICAL,
815 "list_delete_at failed with return value: %d", lrv);
817 UNREF_READER(rContext)
820 list_destroy(&threadContext->cardsList);
824 threadContext->hContext = 0;
834 if (threadContext->hContext == hContext)
843 listLength = list_size(&threadContext->cardsList);
844 if (listLength >= contextMaxCardHandles)
847 "Too many card handles for thread context @%p: %d (max is %d)"
848 "Restart pcscd with --max-card-handle-per-thread value",
849 threadContext, listLength, contextMaxCardHandles);
856 lrv = list_append(&threadContext->cardsList, &hCard);
859 Log2(PCSC_LOG_CRITICAL,
860 "list_append failed with return value: %d", lrv);
878 lrv = list_delete(&threadContext->cardsList, &hCard);
882 Log2(PCSC_LOG_CRITICAL,
"list_delete failed with error %d", lrv);
890 static LONG MSGCheckHandleAssociation(
SCARDHANDLE hCard,
895 if (0 == threadContext->hContext)
899 Log1(PCSC_LOG_CRITICAL,
"Invalidated handle");
904 list_index = list_locate(&threadContext->cardsList, &hCard);
910 Log1(PCSC_LOG_ERROR,
"Client failed to authenticate");
920 static LONG MSGCleanupClient(
SCONTEXT * threadContext)
925 if (threadContext->hContext != 0)
928 (void)MSGRemoveContext(threadContext->hContext, threadContext);
932 "Thread is stopping: dwClientID=%d, threadContext @%p",
938 memset((
void*) threadContext, 0,
sizeof(
SCONTEXT));
939 Log2(PCSC_LOG_DEBUG,
"Freeing SCONTEXT @%p", threadContext);
942 lrv = list_delete(&contextsList, threadContext);
943 listSize = list_size(&contextsList);
946 Log2(PCSC_LOG_CRITICAL,
"list_delete failed with error %x", lrv);
953 Log2(PCSC_LOG_DEBUG,
"Starting suicide alarm in %d seconds",
954 TIME_BEFORE_SUICIDE);
955 alarm(TIME_BEFORE_SUICIDE);
LONG EHUnregisterClientForEvent(int32_t filedes)
Unregister a client and log an error if the client is not found.
used by SCardBeginTransaction()
contained in SCARD_CONNECT Messages.
#define SCARD_E_CANCELLED
The action was cancelled by an SCardCancel request.
wait for a reader state change
contained in SCARD_CANCEL Messages.
contained in SCARD_TRANSMIT Messages.
volatile SCARDHANDLE hLockId
Lock Id.
contained in SCARD_END_TRANSACTION Messages.
get the client/server protocol version
LONG CreateContextThread(uint32_t *pdwClientID)
Creates threads to handle messages received from Clients.
pthread_t pthThread
Event polling thread's ID.
used by SCardEstablishContext()
int32_t minor
IPC minor PROTOCOL_VERSION_MINOR.
used by SCardEndTransaction()
PCSC_API LONG SCardEstablishContext(DWORD dwScope, LPCVOID pvReserved1, LPCVOID pvReserved2, LPSCARDCONTEXT phContext)
Creates an Application Context to the PC/SC Resource Manager.
unsigned long cbPciLength
Protocol Control Inf Length.
#define SCARD_LEAVE_CARD
Do nothing on close.
This handles abstract system level calls.
#define SCARD_E_NO_SERVICE
The Smart card resource manager is not running.
int SYS_Sleep(int)
Makes the current process sleep for some seconds.
uint32_t dwClientID
Connection ID used to reference the Client.
This demarshalls functions over the message queue and keeps track of clients and their handles...
#define PROTOCOL_VERSION_MAJOR
Major version of the current message protocol.
contained in SCARD_DISCONNECT Messages.
static list_t contextsList
Context tracking list.
#define SCARD_E_INVALID_HANDLE
The supplied handle was invalid.
PCSC_API LONG SCardGetAttrib(SCARDHANDLE hCard, DWORD dwAttrId, LPBYTE pbAttr, LPDWORD pcbAttrLen)
Get an attribute from the IFD Handler (reader driver).
Information contained in SCARD_RELEASE_CONTEXT Messages.
PCSC_API LONG SCardDisconnect(SCARDHANDLE hCard, DWORD dwDisposition)
Terminates a connection made through SCardConnect().
contained in SCARD_BEGIN_TRANSACTION Messages.
Information contained in SCARD_ESTABLISH_CONTEXT Messages.
Information transmitted in CMD_VERSION Messages.
INTERNAL LONG MessageReceive(void *buffer_void, uint64_t buffer_size, int32_t filedes)
Called by the Client to get the reponse from the server or vice-versa.
used by SCardReleaseContext()
LONG SCARDCONTEXT
hContext returned by SCardEstablishContext()
#define SCARD_E_INVALID_VALUE
One or more of the supplied parameters values could not be properly interpreted.
contained in SCARD_STATUS Messages.
contained in SCARD_RECONNECT Messages.
unsigned long dwProtocol
Protocol identifier.
#define PCSCLITE_MAX_READERS_CONTEXTS
Maximum readers context (a slot is count as a reader)
contained in SCARD_GET_ATTRIB and Messages.
This defines some structures and #defines to be used over the transport layer.
Information contained in CMD_WAIT_READER_STATE_CHANGE Messages.
PCSC_API LONG SCardReconnect(SCARDHANDLE hCard, DWORD dwShareMode, DWORD dwPreferredProtocols, DWORD dwInitialization, LPDWORD pdwActiveProtocol)
Reestablishes a connection to a reader that was previously connected to using SCardConnect().
#define MAX_BUFFER_SIZE_EXTENDED
enhanced (64K + APDU + Lc + Le + SW) Tx/Rx Buffer
static READER_STATE readerStates[PCSCLITE_MAX_READERS_CONTEXTS]
Area used to read status information about the readers.
LONG EHTryToUnregisterClientForEvent(int32_t filedes)
Try to unregisted a client If no client is found then do not log an error.
char AutoExit
Represents an Application Context on the Server side.
This handles card insertion/removal events, updates ATR, protocol, and status information.
#define SCARD_W_REMOVED_CARD
The smart card has been removed, so further communication is not possible.
PCSC_API LONG SCardConnect(SCARDCONTEXT hContext, LPCSTR szReader, DWORD dwShareMode, DWORD dwPreferredProtocols, LPSCARDHANDLE phCard, LPDWORD pdwActiveProtocol)
Establishes a connection to the reader specified in * szReader.
stop waiting for a reader state change
PCSC_API LONG SCardStatus(SCARDHANDLE hCard, LPSTR mszReaderName, LPDWORD pcchReaderLen, LPDWORD pdwState, LPDWORD pdwProtocol, LPBYTE pbAtr, LPDWORD pcbAtrLen)
Returns the current status of the reader connected to by hCard.
PCSC_API LONG SCardSetAttrib(SCARDHANDLE hCard, DWORD dwAttrId, LPCBYTE pbAttr, DWORD cbAttrLen)
Set an attribute of the IFD Handler.
#define SCARD_RESET_CARD
Reset on close.
LONG SCARDHANDLE
hCard returned by SCardConnect()
static const char * CommandsText[]
Handles messages received from Clients.
#define PROTOCOL_VERSION_MINOR
Minor version of the current message protocol.
PCSC_API LONG SCardBeginTransaction(SCARDHANDLE hCard)
Establishes a temporary exclusive access mode for doing a serie of commands in a transaction.
This keeps a list of defines for pcsc-lite.
#define SCARD_W_RESET_CARD
The smart card has been reset, so any shared state information is invalid.
Protocol Control Information (PCI)
PCSC_API LONG SCardControl(SCARDHANDLE hCard, DWORD dwControlCode, LPCVOID pbSendBuffer, DWORD cbSendLength, LPVOID pbRecvBuffer, DWORD cbRecvLength, LPDWORD lpBytesReturned)
Sends a command directly to the IFD Handler (reader driver) to be processed by the reader...
Define an exported public reader state structure so each application gets instant notification of cha...
INTERNAL LONG MessageSend(void *buffer_void, uint64_t buffer_size, int32_t filedes)
Sends a menssage from client to server or vice-versa.
used by SCardDisconnect()
#define SCARD_E_NO_MEMORY
Not enough memory available to complete this command.
contained in SCARD_CONTROL Messages.
This keeps track of a list of currently available reader structures.
int32_t major
IPC major PROTOCOL_VERSION_MAJOR.
PCSC_API LONG SCardEndTransaction(SCARDHANDLE hCard, DWORD dwDisposition)
Ends a previously begun transaction.
PCSC_API LONG SCardTransmit(SCARDHANDLE hCard, const SCARD_IO_REQUEST *pioSendPci, LPCBYTE pbSendBuffer, DWORD cbSendLength, SCARD_IO_REQUEST *pioRecvPci, LPBYTE pbRecvBuffer, LPDWORD pcbRecvLength)
Sends an APDU to the smart card contained in the reader connected to by SCardConnect().
pthread_mutex_t cardsList_lock
lock for the above list
pthread_mutex_t contextsList_lock
lock for the above list
#define SCARD_S_SUCCESS
error codes from http://msdn.microsoft.com/en-us/library/aa924526.aspx
This handles smart card reader communications.
PCSC_API LONG SCardReleaseContext(SCARDCONTEXT hContext)
Destroys a communication context to the PC/SC Resource Manager.