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authorMounir IDRASSI <mounir.idrassi@idrix.fr>2023-06-29 00:06:20 +0200
committerMounir IDRASSI <mounir.idrassi@idrix.fr>2023-06-29 00:06:20 +0200
commit034b64f4153550cbe5849bcbfc27e187377cc512 (patch)
treed831496163c3891031765010bf1934406b0c4a3c /src/Common/SCardManager.cpp
parent502ab9112a7624dbd7c1c90c2e12ed45512b8b3c (diff)
downloadVeraCrypt-034b64f4153550cbe5849bcbfc27e187377cc512.tar.gz
VeraCrypt-034b64f4153550cbe5849bcbfc27e187377cc512.zip
EMV keyfile support: Overall code improvements and bug fixes
Diffstat (limited to 'src/Common/SCardManager.cpp')
-rw-r--r--src/Common/SCardManager.cpp109
1 files changed, 109 insertions, 0 deletions
diff --git a/src/Common/SCardManager.cpp b/src/Common/SCardManager.cpp
new file mode 100644
index 00000000..40578d39
--- /dev/null
+++ b/src/Common/SCardManager.cpp
@@ -0,0 +1,109 @@
+#include "SCardManager.h"
+#include "PCSCException.h"
+
+namespace VeraCrypt
+{
+ shared_ptr<SCardLoader> SCardManager::loader = make_shared<SCardLoader>();
+
+ SCardManager::SCardManager()
+ {
+ loader->Initialize();
+ }
+
+ SCardManager::~SCardManager()
+ {
+ loader->Finalize();
+ }
+
+ vector<wstring> SCardManager::GetReaders()
+ {
+ vector<wstring> readers;
+ LPTSTR mszReaders = NULL;
+ LPTSTR ptr = NULL;
+ DWORD dwReaders = 0;
+ SCARDCONTEXT hScardContext = 0;
+ LONG lRet = SCARD_S_SUCCESS;
+
+ hScardContext = loader->GetSCardContext();
+ lRet = loader->SCardIsValidContext(hScardContext);
+ if (SCARD_S_SUCCESS != lRet)
+ {
+ loader->SCardReleaseContext(hScardContext);
+ lRet = loader->SCardEstablishContext(SCARD_SCOPE_USER, NULL, NULL, &hScardContext);
+ if (lRet != SCARD_S_SUCCESS)
+ throw PCSCException(lRet);
+ }
+
+#ifdef SCARD_AUTOALLOCATE
+ dwReaders = SCARD_AUTOALLOCATE;
+ lRet = loader->SCardListReaders(hScardContext, NULL, (LPTSTR)&mszReaders, &dwReaders);
+#else
+ lRet = loader->SCardListReaders(hScardContext, NULL, NULL, &dwReaders);
+ if (lRet == SCARD_S_SUCCESS)
+ {
+ mszReaders = (LPTSTR)calloc(dwReaders, sizeof(char));
+ lRet = loader->SCardListReaders(hScardContext, NULL, mszReaders, &dwReaders);
+ }
+#endif
+
+ if (lRet == SCARD_S_SUCCESS && !mszReaders)
+ {
+ lRet = SCARD_E_NO_READERS_AVAILABLE;
+ }
+ if (lRet == SCARD_E_NO_READERS_AVAILABLE)
+ {
+ readers.clear();
+ lRet = SCARD_S_SUCCESS;
+ }
+
+ if (lRet == SCARD_S_SUCCESS && mszReaders)
+ {
+ ptr = mszReaders;
+ while (*ptr)
+ {
+#ifdef TC_WINDOWS
+ readers.push_back(ptr);
+#else
+ readers.push_back(StringConverter::ToWide(ptr));
+#endif
+ ptr +=
+#ifdef TC_WINDOWS
+ wcslen(ptr) + 1;
+#else
+ strlen(ptr) + 1;
+#endif
+ }
+
+#ifdef SCARD_AUTOALLOCATE
+ loader->SCardFreeMemory(hScardContext, mszReaders);
+#else
+ free(mszReaders);
+#endif
+ }
+
+ if (lRet != SCARD_S_SUCCESS)
+ throw PCSCException(lRet);
+
+ return readers;
+ }
+
+ shared_ptr<SCardReader> SCardManager::GetReader(size_t readerNumber)
+ {
+ vector<wstring> readers;
+ shared_ptr<SCardReader> smartCardReader;
+
+ loader->Initialize();
+
+ readers = GetReaders();
+ if (readerNumber < readers.size())
+ {
+ smartCardReader = make_shared<SCardReader>(readers[readerNumber], loader);
+ if (smartCardReader)
+ {
+ return smartCardReader;
+ }
+ }
+
+ throw InvalidEMVPath();
+ }
+} \ No newline at end of file