Add options and documentation for gpgcedev.

3 files changed, 95 insertions, 3 deletions

diff --git a/README b/README
index bf6f23f..91cf382 100644
--- a/README
+++ b/README
@@ -13,3 +13,23 @@ category "libassuan".
 
 The primary FTP site is ftp://ftp.gnupg.org/gcrypt/libassuan.
 
+
+
+Notes for Windows CE:
+----------------------
+
+Libassuan supports WindowsCE (tested with WindowsMobile 6.5).  To
+install it, copy libassuan-0.dll into a location where DLL are found
+and install the included gpgcedev driver: First copy "gpgcedev.dll"
+into the root directory, second run the included program gpgcemgr on
+the device: "gpgcemgr --register".  This creates the necessary
+registry keys.  In case the copy step fails, the driver may still be
+in use: Close all applications using that driver, run "gpgcemgr
+--deactivate" to deactivate the running driver and try again.
+
+Registry keys created by "gpgcemgr --register" are:
+
+   Drivers\\GnuPG_Device\dll    -> "gpgcedev.dll"
+   Drivers\\GnuPG_Device\prefix -> "GPG"
+   Drivers\\GnuPG_Device\Index  -> 1      (dword)
+
diff --git a/src/ChangeLog b/src/ChangeLog
index 0fc7019..d3af990 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,7 @@
+2010-03-05  Werner Koch  <[email protected]>
+
+	* gpgcemgr.c: Add options to register a device and activate it.
+
 2010-02-24  Werner Koch  <[email protected]>
 
 	* gpgcemgr.c: New.
diff --git a/src/gpgcemgr.c b/src/gpgcemgr.c
index da51602..d5d354e 100644
--- a/src/gpgcemgr.c
+++ b/src/gpgcemgr.c
@@ -24,10 +24,44 @@
 
 #define PGM "gpgcemgr"
 
-#warning Fixme: Add support to create the device.
+#define GPGCEDEV_KEY_NAME L"Drivers\\GnuPG_Device"
+#define GPGCEDEV_DLL_NAME L"gpgcedev.dll"
+#define GPGCEDEV_PREFIX   L"GPG"
 
-int
-main (int argc, char **argv)
+
+static int
+install (void)
+{
+  HKEY handle;
+  DWORD disp, dw;
+  
+  if (RegCreateKeyEx (HKEY_LOCAL_MACHINE, GPGCEDEV_KEY_NAME, 0, NULL, 0,
+                      KEY_WRITE, NULL, &handle, &disp))
+    {
+      fprintf (stderr, PGM": error creating registry key: rc=%d\n", 
+               (int)GetLastError ());
+      return 1;
+    }
+
+  RegSetValueEx (handle, L"dll", 0, REG_SZ, 
+                 (void*)GPGCEDEV_DLL_NAME, sizeof (GPGCEDEV_DLL_NAME));
+  RegSetValueEx (handle, L"prefix", 0, REG_SZ,
+                 (void*)GPGCEDEV_PREFIX, sizeof (GPGCEDEV_PREFIX));
+
+  dw = 1;
+  RegSetValueEx (handle, L"Index", 0, REG_DWORD, (void*)&dw, sizeof dw);
+  
+  RegCloseKey (handle);
+
+  fprintf (stderr, PGM": registry key created\n");
+
+
+  return 0;
+}
+
+
+static int
+deinstall (void)
 {
   int result = 0;
   HANDLE shd;
@@ -63,6 +97,40 @@ main (int argc, char **argv)
         }
       FindClose (shd);
     }
+
+  return result;
+}
+
+
+
+int
+main (int argc, char **argv)
+{
+  int result = 0;
+
+  if (argc > 1 && !strcmp (argv[1], "--register"))
+    result = install ();
+  else if (argc > 1 && !strcmp (argv[1], "--deactivate"))
+    result = deinstall ();
+  else if (argc > 1 && !strcmp (argv[1], "--activate"))
+    {
+      /* This is mainly for testing.  The activation is usually done
+         right before the device is opened.  */
+      if (ActivateDevice (GPGCEDEV_DLL_NAME, 0) == INVALID_HANDLE_VALUE)
+        {
+          fprintf (stderr, PGM": ActivateDevice failed: rc=%d\n",
+                   (int)GetLastError ());
+          result = 1;
+        }
+      else
+        fprintf (stderr, PGM": device activated\n");
+    }
+  else
+    {
+      fprintf (stderr, "usage: " PGM " --register|--deactivate|--activate\n");
+      result = 1;
+    }
+
   fflush (stdout);
   fflush (stderr);
   Sleep (1000);