libcacard: initial commit

libcacard emulates a Common Access Card (CAC) which is a standard
for smartcards. It is used by the emulated ccid card introduced in
a following patch. Docs are available in docs/libcacard.txt

Signed-off-by: Alon Levy <alevy@redhat.com>

---

changes from v24->v25:
 * Fix out of tree builds.
 * Fix build with linux-user targets.

changes from v23->v24: (Jes Sorensen review 2)
 * Makefile.target: use obj-$(CONFIG_*) +=
 * remove unrequired includes, include qemu-common before qemu-thread
  * required adding #define NO_NSPR_10_SUPPORT (harmless)

changes from v22->v23:
 * configure fixes: (reported by Stefan Hajnoczi)
  * test a = b, not a == b (second isn't portable)
  * quote $source_path in case it contains spaces
   - this doesn't really help since there are many other places
     that need similar fixes, not introduced by this patch.

changes from v21->v22:
 * fix configure to not link libcacard if nss not found
    (reported by Stefan Hajnoczi)
 * fix vscclient linkage with simpletrace backend
    (reported by Stefan Hajnoczi)
 * card_7816.c: add missing break in ERROR_DATA_NOT_FOUND
    (reported by William van de Velde)

changes from v20->v21: (Jes Sorensen review)
 * use qemu infrastructure: qemu-thread, qemu-common (qemu_malloc
  and qemu_free), error_report
 * assert instead of ASSERT
 * cosmetic fixes
 * use strpbrk and isspace
 * add --disable-nss --enable-nss here, instead of in the final patch.
 * split vscclient, passthru and docs to following patches.

changes from v19->v20:
 * checkpatch.pl

changes from v15->v16:

Build:
 * don't erase self with distclean
 * fix make clean after make distclean
 * Makefile: make vscclient link quiet

Behavioral:
 * vcard_emul_nss: load coolkey in more situations
 * vscclient:
  * use hton,ntoh
  * send init on connect, only start vevent thread on response
  * read payload after header check, before type switch
  * remove Reconnect
  * update for vscard_common changes, empty Flush implementation

Style/Whitespace:
 * fix wrong variable usage
 * remove unused variable
 * use only C style comments
  * add copyright header
  * fix tabulation

Signed-off-by: Alon Levy <alevy@redhat.com>

libcacard: fix out of tree builds

1 files changed, 32 insertions, 0 deletions

diff --git a/libcacard/vcard_emul_type.h b/libcacard/vcard_emul_type.h
new file mode 100644
index 0000000..0242f40
--- /dev/null
+++ b/libcacard/vcard_emul_type.h
@@ -0,0 +1,32 @@
+/*
+ *  This header file abstracts the different card types. The goal is new card
+ *  types can easily be added by simply changing this file and
+ *  vcard_emul_type.c. It is currently not a requirement to dynamically add new
+ *  card types.
+ *
+ * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
+ * See the COPYING.LIB file in the top-level directory.
+ */
+
+#ifndef VCARD_EMUL_TYPE_H
+#define VCARD_EMUL_TYPE_H 1
+#include "vcardt.h"
+#include "vreadert.h"
+
+/*
+ * types
+ */
+typedef enum {
+     VCARD_EMUL_NONE = 0,
+     VCARD_EMUL_CAC,
+     VCARD_EMUL_PASSTHRU
+} VCardEmulType;
+
+/* functions used by the rest of the emulator */
+VCardStatus vcard_init(VReader *vreader, VCard *vcard, VCardEmulType type,
+                       const char *params, unsigned char * const *cert,
+                       int cert_len[], VCardKey *key[], int cert_count);
+VCardEmulType vcard_emul_type_select(VReader *vreader);
+VCardEmulType vcard_emul_type_from_string(const char *type_string);
+
+#endif