kbx: Add framework for a public key daemon.

* kbx/keyboxd.c: New.
* kbx/keyboxd.h: New.
* kbx/kbxserver.c: New.
* kbx/keyboxd-w32info.rc: New.
* kbx/Makefile.am (EXTRA_DIST): Add new rc file.
(resource_objs): Ditto.
(libexec_PROGRAMS): New.
(common_libs, commonpth_libs): New.
(kbxutil_LDADD): Use here.
(keyboxd_SOURCES): New.
(keyboxd_CFLAGS): New.
(keyboxd_LDADD): New.
(keyboxd_LDFLAGS): New.
(keyboxd_DEPENDENCIES): new.
($(PROGRAMS)): Extend.

Signed-off-by: Werner Koch <[email protected]>

1 files changed, 137 insertions, 0 deletions

diff --git a/kbx/keyboxd.h b/kbx/keyboxd.h
new file mode 100644
index 000000000..7719061f4
--- /dev/null
+++ b/kbx/keyboxd.h
@@ -0,0 +1,137 @@
+/* keyboxd.h - Global definitions for keyboxd
+ * Copyright (C) 2018 Werner Koch
+ *
+ * This file is part of GnuPG.
+ *
+ * GnuPG is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GnuPG is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef KEYBOXD_H
+#define KEYBOXD_H
+
+#ifdef GPG_ERR_SOURCE_DEFAULT
+#error GPG_ERR_SOURCE_DEFAULT already defined
+#endif
+#define GPG_ERR_SOURCE_DEFAULT  GPG_ERR_SOURCE_KEYBOX
+#include <gpg-error.h>
+
+#include <gcrypt.h>
+#include "../common/util.h"
+#include "../common/membuf.h"
+#include "../common/sysutils.h" /* (gnupg_fd_t) */
+
+
+/* A large struct name "opt" to keep global flags */
+struct
+{
+  unsigned int debug;  /* Debug flags (DBG_foo_VALUE) */
+  int verbose;         /* Verbosity level */
+  int quiet;           /* Be as quiet as possible */
+  int dry_run;         /* Don't change any persistent data */
+  int batch;           /* Batch mode */
+
+  /* True if we are running detached from the tty. */
+  int running_detached;
+
+} opt;
+
+
+/* Bit values for the --debug option.  */
+#define DBG_MPI_VALUE	  2	/* debug mpi details */
+#define DBG_CRYPTO_VALUE  4	/* debug low level crypto */
+#define DBG_MEMORY_VALUE  32	/* debug memory allocation stuff */
+#define DBG_CACHE_VALUE   64	/* debug the caching */
+#define DBG_MEMSTAT_VALUE 128	/* show memory statistics */
+#define DBG_HASHING_VALUE 512	/* debug hashing operations */
+#define DBG_IPC_VALUE     1024  /* Enable Assuan debugging.  */
+
+/* Test macros for the debug option.  */
+#define DBG_CRYPTO  (opt.debug & DBG_CRYPTO_VALUE)
+#define DBG_MEMORY  (opt.debug & DBG_MEMORY_VALUE)
+#define DBG_CACHE   (opt.debug & DBG_CACHE_VALUE)
+#define DBG_HASHING (opt.debug & DBG_HASHING_VALUE)
+#define DBG_IPC     (opt.debug & DBG_IPC_VALUE)
+
+/* Forward reference for local definitions in command.c.  */
+struct server_local_s;
+
+#if SIZEOF_UNSIGNED_LONG == 8
+# define SERVER_CONTROL_MAGIC 0x6b6579626f786420
+#else
+# define SERVER_CONTROL_MAGIC 0x6b627864
+#endif
+
+/* Collection of data per session (aka connection). */
+struct server_control_s
+{
+  unsigned long magic;/* Always has SERVER_CONTROL_MAGIC.  */
+  int refcount;       /* Count additional references to this object.  */
+
+  /* Private data used to fire up the connection thread.  We use this
+   * structure do avoid an extra allocation for only a few bytes while
+   * spawning a new connection thread.  */
+  struct {
+    gnupg_fd_t fd;
+  } thread_startup;
+
+  /* Private data of the server (kbxserver.c). */
+  struct server_local_s *server_local;
+
+  /* Environment settings for the connection.  */
+  char *lc_messages;
+
+  /* Miscellaneous info on the connection.  */
+  unsigned long client_pid;
+  int client_uid;
+
+};
+
+
+/* This is a special version of the usual _() gettext macro.  It
+ * assumes a server connection control variable with the name "ctrl"
+ * and uses that to translate a string according to the locale set for
+ * the connection.  The macro LunderscoreIMPL is used by i18n to
+ * actually define the inline function when needed.  */
+#if defined (ENABLE_NLS) || defined (USE_SIMPLE_GETTEXT)
+#define L_(a) keyboxd_Lunderscore (ctrl, (a))
+#define LunderscorePROTO                                            \
+  static inline const char *keyboxd_Lunderscore (ctrl_t ctrl,       \
+                                                 const char *string)  \
+    GNUPG_GCC_ATTR_FORMAT_ARG(2);
+#define LunderscoreIMPL                                         \
+  static inline const char *                                    \
+  keyboxd_Lunderscore (ctrl_t ctrl, const char *string)         \
+  {                                                             \
+    return ctrl? i18n_localegettext (ctrl->lc_messages, string) \
+      /*     */: gettext (string);                              \
+  }
+#else
+#define L_(a) (a)
+#endif
+
+
+/*-- keyboxd.c --*/
+void kbxd_exit (int rc) GPGRT_ATTR_NORETURN;
+void kbxd_set_progress_cb (void (*cb)(ctrl_t ctrl, const char *what,
+                                      int printchar, int current, int total),
+                           ctrl_t ctrl);
+const char *get_kbxd_socket_name (void);
+int get_kbxd_active_connection_count (void);
+void kbxd_sighup_action (void);
+
+
+/*-- kbxserver.c --*/
+void kbxd_start_command_handler (ctrl_t, gnupg_fd_t, unsigned int);
+
+#endif /*KEYBOXD_H*/