mirror of
git://git.gnupg.org/gnupg.git
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135 lines
3.3 KiB
C
135 lines
3.3 KiB
C
/* backend.c - Dispatcher to the various backends.
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* Copyright (C) 2009 Free Software Foundation, Inc.
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*
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* This file is part of GnuPG.
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*
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* GnuPG is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* GnuPG is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include <config.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <unistd.h>
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#include "g13.h"
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#include "i18n.h"
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#include "keyblob.h"
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#include "backend.h"
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#include "be-encfs.h"
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#include "be-truecrypt.h"
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static gpg_error_t
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no_such_backend (int conttype)
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{
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log_error ("invalid backend %d given - this is most likely a bug\n",
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conttype);
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return gpg_error (GPG_ERR_INTERNAL);
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}
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/* Return true if CONTTYPE is supported by us. */
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int
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be_is_supported_conttype (int conttype)
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{
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switch (conttype)
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{
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case CONTTYPE_ENCFS:
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return 1;
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default:
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return 0;
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}
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}
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/* If the backend requires a separate file or directory for the
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container, return its name by computing it from FNAME which gives
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the g13 filename. The new file name is allocated and stored at
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R_NAME, if this is expected to be a directory true is stored at
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R_ISDIR. If no detached name is expected or an error occurs NULL
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is stored at R_NAME. The function returns 0 on success or an error
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code. */
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gpg_error_t
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be_get_detached_name (int conttype, const char *fname,
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char **r_name, int *r_isdir)
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{
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*r_name = NULL;
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*r_isdir = 0;
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switch (conttype)
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{
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case CONTTYPE_ENCFS:
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return be_encfs_get_detached_name (fname, r_name, r_isdir);
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default:
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return no_such_backend (conttype);
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}
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}
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gpg_error_t
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be_create_new_keys (int conttype, membuf_t *mb)
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{
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switch (conttype)
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{
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case CONTTYPE_ENCFS:
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return be_encfs_create_new_keys (mb);
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case CONTTYPE_TRUECRYPT:
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return be_truecrypt_create_new_keys (mb);
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default:
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return no_such_backend (conttype);
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}
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}
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/* Dispatcher to the backend's create function. */
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gpg_error_t
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be_create_container (ctrl_t ctrl, int conttype,
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const char *fname, int fd, tupledesc_t tuples,
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unsigned int *r_id)
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{
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(void)fd; /* Not yet used. */
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switch (conttype)
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{
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case CONTTYPE_ENCFS:
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return be_encfs_create_container (ctrl, fname, tuples, r_id);
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default:
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return no_such_backend (conttype);
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}
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}
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/* Dispatcher to the backend's mount function. */
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gpg_error_t
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be_mount_container (ctrl_t ctrl, int conttype,
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const char *fname, const char *mountpoint,
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tupledesc_t tuples, unsigned int *r_id)
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{
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switch (conttype)
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{
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case CONTTYPE_ENCFS:
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return be_encfs_mount_container (ctrl, fname, mountpoint, tuples, r_id);
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default:
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return no_such_backend (conttype);
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}
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}
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