g13: First chunk of code to support dm-crypt.

* g13/call-syshelp.c, g13/call-syshelp.h: New.
* g13/g13-syshelp.c, g13/g13-syshelp.h: New.
* g13/sh-cmd.c: New.
* g13/sh-blockdev.c: New.
* g13/sh-exectool.c: New.
* g13/sh-dmcrypt.c: New.
* g13/Makefile.am (sbin_PROGRAMS): Add g13-syshelp.c
(g13_syshelp_SOURCES): New.
(g13_syshelp_LDADD): New.

* g13/g13.c (opts): Add option --type.
(g13_deinit_default_ctrl): New.
(main): Implement that option.  Call g13_deinit_default_ctrl.
* g13/g13.h (struct call_syshelp_s): New declaration.
(server_control_s): Add field syshelp_local.
* g13/keyblob.h (KEYBLOB_TAG_CREATED): New.
(KEYBLOB_TAG_ALGOSTR): New.
(KEYBLOB_TAG_HDRCOPY): New.
* g13/backend.c (be_parse_conttype_name): New.
(be_get_detached_name): Add CONTTYPE_DM_CRYPT.

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

1 files changed, 93 insertions, 0 deletions

diff --git a/g13/g13-syshelp.h b/g13/g13-syshelp.h
new file mode 100644
index 000000000..205488257
--- /dev/null
+++ b/g13/g13-syshelp.h
@@ -0,0 +1,93 @@
+/* g130syshelp.h - Global definitions for G13-SYSHELP.
+ * Copyright (C) 2015 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 <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef G13_SYSHELP_H
+#define G13_SYSHELP_H
+
+#include "g13-common.h"
+
+
+struct tab_item_s;
+typedef struct tab_item_s *tab_item_t;
+
+struct tab_item_s
+{
+  tab_item_t next;
+  char *label;       /* Optional malloced label for that entry.  */
+  char *mountpoint;  /* NULL or a malloced mountpoint.  */
+  char blockdev[1];  /* String with the name of the block device.  If
+                        it starts with a slash is is a regular device
+                        name, otherwise it is a PARTUUID.  */
+};
+
+
+
+/* Forward declaration for an object defined in g13-sh-cmd.c.  */
+struct server_local_s;
+
+/* Session control object.  This object is passed down to most
+   functions.  The default values for it are set by
+   g13_syshelp_init_default_ctrl(). */
+struct server_control_s
+{
+  int no_server;      /* We are not running under server control */
+  int  status_fd;     /* Only for non-server mode */
+  struct server_local_s *server_local;
+
+  struct {
+    uid_t uid;     /* UID of the client calling use.  */
+    char *uname;
+    tab_item_t tab;/* Linked list with the g13tab items for this user.  */
+  } client;
+
+  /* Flag indicating that we should fail all commands.  */
+  int fail_all_cmds;
+
+  /* Type of the current container.  See the CONTTYPE_ constants.  */
+  int conttype;
+
+  /* A pointer into client.tab with the selected tab line or NULL. */
+  tab_item_t devti;
+};
+
+
+/*-- g13-syshelp.c --*/
+void g13_syshelp_init_default_ctrl (struct server_control_s *ctrl);
+
+/*-- sh-cmd.c --*/
+gpg_error_t syshelp_server (ctrl_t ctrl);
+gpg_error_t sh_encrypt_keyblob (ctrl_t ctrl,
+                                const void *keyblob, size_t keybloblen,
+                                char **r_enckeyblob, size_t *r_enckeybloblen);
+
+/*-- sh-exectool.c --*/
+gpg_error_t sh_exec_tool (const char *pgmname, const char *argv[],
+                          const char *input_string,
+                          char **result, size_t *resultlen);
+
+/*-- sh-blockdev.c --*/
+gpg_error_t sh_blockdev_getsz (const char *name, unsigned long long *r_nblocks);
+gpg_error_t sh_is_empty_partition (const char *name);
+
+/*-- sh-dmcrypt.c --*/
+gpg_error_t sh_dmcrypt_create_container (ctrl_t ctrl, const char *devname,
+                                         estream_t devfp);
+
+
+#endif /*G13_SYSHELP_H*/