+//-----------------------------------------------------------------------------
+// Copyright (C) 2019 piwi
+//
+// This code is licensed to you under the terms of the GNU GPL, version 2 or,
+// at your option, any later version. See the LICENSE.txt file for the text of
+// the license.
+//-----------------------------------------------------------------------------
+// PCSC functions to use alternative Smartcard Readers
+//-----------------------------------------------------------------------------
+
+#include "pcsc.h"
+
+#include <stdlib.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <string.h>
+
+#if defined (__APPLE__)
+#include <PCSC/winscard.h>
+#include <PCSC/wintypes.h>
+#define SCARD_ATTR_VALUE(Class, Tag) ((((ULONG)(Class)) << 16) | ((ULONG)(Tag)))
+#define SCARD_CLASS_ICC_STATE 9
+#define SCARD_ATTR_ATR_STRING SCARD_ATTR_VALUE(SCARD_CLASS_ICC_STATE, 0x0303)
+#elif defined (_WIN32)
+#include <winscard.h>
+#else
+#include <winscard.h>
+#include <reader.h>
+#endif
+
+#include "ui.h"
+#include "util.h"
+#include "cmdhw.h"
+
+static SCARDCONTEXT SC_Context;
+static SCARDHANDLE SC_Card;
+static DWORD SC_Protocol;
+static char* AlternativeSmartcardReader = NULL;
+
+
+char *getAlternativeSmartcardReader(void)
+{
+ return AlternativeSmartcardReader;
+}
+
+
+bool pcscCheckForCardReaders(void)
+{
+ LONG res = SCardEstablishContext(SCARD_SCOPE_SYSTEM, NULL, NULL, &SC_Context);
+ if (res != SCARD_S_SUCCESS) {
+ return false;
+ }
+
+ DWORD pcchReaders;
+ res = SCardListReaders(SC_Context, NULL, NULL, &pcchReaders);
+ if (res != SCARD_S_SUCCESS) {
+ SCardReleaseContext(SC_Context);
+ return false;
+ }
+
+ if (res == SCARD_E_NO_READERS_AVAILABLE || res == SCARD_E_NO_SERVICE) {
+ SCardReleaseContext(SC_Context);
+ return false;
+ }
+
+ return true;
+}
+
+
+static char *pickReader(LPTSTR readerlist)
+{
+ PrintAndLogEx(NORMAL, "Please select one of these:");
+ PrintAndLogEx(NORMAL, " [0] PM3 RDV40 Smartcard Slot %s", PM3hasSmartcardSlot() ? "(default)" : "(default, not available)");
+
+ int num = 1;
+ for (LPTSTR p = readerlist; *p != '\0'; ) {
+ PrintAndLogEx(NORMAL, " [%1d] %s", num++, p);
+ while (*p++ != '\0') ; // advance to next entry
+ }
+
+ num--;
+
+ if (num == 1) {
+ printf("Your choice (0 or 1)?");
+ } else {
+ printf("Your choice (0...%d)? ", num);
+ }
+ int selection = getch() - '0';
+ printf("\n");
+
+ if (selection == 0) {
+ PrintAndLogEx(INFO, "Selected RDV40 Smartcard Slot");
+ return NULL;
+ }
+
+ if (selection >= 1 && selection <= num) {
+ LPTSTR p = readerlist;
+ for (int i = 1; i < selection; i++) {
+ while (*p++ != '\0') ; // advance to next entry
+ }
+ PrintAndLogEx(INFO, "Selected %s", p);
+ return p;
+ }
+
+ PrintAndLogEx(INFO, "Invalid selection. Using RDV40 Smartcard Slot");
+ return NULL;
+
+}
+
+
+char *matchString(LPTSTR readerlist, const char *readername)
+{
+ return pickReader(readerlist);
+}
+
+
+bool pcscSelectAlternativeCardReader(const char *readername)
+{
+ DWORD readerlist_len;
+ LONG res = SCardListReaders(SC_Context, NULL, NULL, &readerlist_len);
+ if (res != SCARD_S_SUCCESS) {
+ return false;
+ }
+
+ LPTSTR readerlist = calloc(readerlist_len, sizeof(char));
+ res = SCardListReaders(SC_Context, NULL, readerlist, &readerlist_len);
+ if (res != SCARD_S_SUCCESS) {
+ free(readerlist);
+ return false;
+ }
+
+ char *selected_readername = NULL;
+ if (readername) {
+ selected_readername = matchString(readerlist, readername);
+ } else {
+ selected_readername = pickReader(readerlist);
+ }
+
+ if (selected_readername == NULL) {
+ free(readerlist);
+ return false;
+ }
+
+ free(AlternativeSmartcardReader);
+ AlternativeSmartcardReader = malloc((strlen(selected_readername) + 1) * sizeof(char));
+ strcpy(AlternativeSmartcardReader, selected_readername);
+
+ return true;
+}
+
+
+bool pcscGetATR(smart_card_atr_t *card)
+{
+ if (!card) {
+ return false;
+ }
+
+ card->atr_len = 0;
+ memset(card->atr, 0, sizeof(card->atr));
+
+ LONG res = SCardConnect(SC_Context, AlternativeSmartcardReader, SCARD_SHARE_SHARED,
+ SCARD_PROTOCOL_T0 | SCARD_PROTOCOL_T1, &SC_Card, &SC_Protocol);
+ if (res != SCARD_S_SUCCESS) {
+ return false;
+ }
+
+ DWORD atr_len = sizeof(card->atr);
+ res = SCardGetAttrib(SC_Card, SCARD_ATTR_ATR_STRING, card->atr, &atr_len);
+ if (res != SCARD_S_SUCCESS) {
+ return false;
+ }
+ card->atr_len = atr_len;
+
+ // TODO: LogTrace without device
+
+ return true;
+}
projects / proxmark3-svn / commitdiff