Adding upstream version 3:4.8.29.upstream/3%4.8.29upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 867 insertions, 0 deletions

diff --git a/src/vfs/sftpfs/sftpfs.c b/src/vfs/sftpfs/sftpfs.c
new file mode 100644
index 0000000..55e5ada
--- /dev/null
+++ b/src/vfs/sftpfs/sftpfs.c
@@ -0,0 +1,867 @@
+/* Virtual File System: SFTP file system.
+   The interface function
+
+   Copyright (C) 2011-2022
+   Free Software Foundation, Inc.
+
+   Written by:
+   Ilia Maslakov <il.smind@gmail.com>, 2011
+   Slava Zanko <slavazanko@gmail.com>, 2011-2013
+   Andrew Borodin <aborodin@vmail.ru>, 2021-2022
+
+   This file is part of the Midnight Commander.
+
+   The Midnight Commander 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.
+
+   The Midnight Commander 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/>.
+ */
+
+#include <config.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>             /* memset() */
+
+#include "lib/global.h"
+#include "lib/vfs/netutil.h"
+#include "lib/vfs/utilvfs.h"
+#include "lib/vfs/gc.h"
+#include "lib/widget.h"
+#include "lib/tty/tty.h"        /* tty_enable_interrupt_key () */
+
+#include "internal.h"
+
+#include "sftpfs.h"
+
+/*** global variables ****************************************************************************/
+
+struct vfs_s_subclass sftpfs_subclass;
+struct vfs_class *vfs_sftpfs_ops = VFS_CLASS (&sftpfs_subclass);        /* used in file.c */
+
+/*** file scope macro definitions ****************************************************************/
+
+/*** file scope type declarations ****************************************************************/
+
+/*** file scope variables ************************************************************************/
+
+/* --------------------------------------------------------------------------------------------- */
+/*** file scope functions ************************************************************************/
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Callback for VFS-class init action.
+ *
+ * @param me structure of VFS class
+ */
+
+static int
+sftpfs_cb_init (struct vfs_class *me)
+{
+    (void) me;
+
+    if (libssh2_init (0) != 0)
+        return 0;
+
+    sftpfs_filename_buffer = g_string_new ("");
+    sftpfs_init_config_variables_patterns ();
+    return 1;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Callback for VFS-class deinit action.
+ *
+ * @param me structure of VFS class
+ */
+
+static void
+sftpfs_cb_done (struct vfs_class *me)
+{
+    (void) me;
+
+    sftpfs_deinit_config_variables_patterns ();
+    g_string_free (sftpfs_filename_buffer, TRUE);
+    libssh2_exit ();
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Callback for opening file.
+ *
+ * @param vpath path to file
+ * @param flags flags (see man 2 open)
+ * @param mode  mode (see man 2 open)
+ * @return file data handler if success, NULL otherwise
+ */
+
+static void *
+sftpfs_cb_open (const vfs_path_t * vpath, int flags, mode_t mode)
+{
+    vfs_file_handler_t *fh;
+    const vfs_path_element_t *path_element;
+    struct vfs_s_super *super;
+    const char *path_super;
+    struct vfs_s_inode *path_inode;
+    GError *mcerror = NULL;
+    gboolean is_changed = FALSE;
+
+    path_element = vfs_path_get_by_index (vpath, -1);
+
+    path_super = vfs_s_get_path (vpath, &super, 0);
+    if (path_super == NULL)
+        return NULL;
+
+    path_inode = vfs_s_find_inode (path_element->class, super, path_super, LINK_FOLLOW, FL_NONE);
+    if (path_inode != NULL && ((flags & (O_CREAT | O_EXCL)) == (O_CREAT | O_EXCL)))
+    {
+        path_element->class->verrno = EEXIST;
+        return NULL;
+    }
+
+    if (path_inode == NULL)
+    {
+        char *dirname, *name;
+        struct vfs_s_entry *ent;
+        struct vfs_s_inode *dir;
+
+        dirname = g_path_get_dirname (path_super);
+        name = g_path_get_basename (path_super);
+        dir = vfs_s_find_inode (path_element->class, super, dirname, LINK_FOLLOW, FL_DIR);
+        if (dir == NULL)
+        {
+            g_free (dirname);
+            g_free (name);
+            return NULL;
+        }
+        ent = vfs_s_generate_entry (path_element->class, name, dir, 0755);
+        path_inode = ent->ino;
+        vfs_s_insert_entry (path_element->class, dir, ent);
+        g_free (dirname);
+        g_free (name);
+        is_changed = TRUE;
+    }
+
+    if (S_ISDIR (path_inode->st.st_mode))
+    {
+        path_element->class->verrno = EISDIR;
+        return NULL;
+    }
+
+    fh = sftpfs_fh_new (path_inode, is_changed);
+
+    if (!sftpfs_open_file (fh, flags, mode, &mcerror))
+    {
+        mc_error_message (&mcerror, NULL);
+        g_free (fh);
+        return NULL;
+    }
+
+    vfs_rmstamp (path_element->class, (vfsid) super);
+    super->fd_usage++;
+    fh->ino->st.st_nlink++;
+    return fh;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Callback for opening directory.
+ *
+ * @param vpath path to directory
+ * @return directory data handler if success, NULL otherwise
+ */
+
+static void *
+sftpfs_cb_opendir (const vfs_path_t * vpath)
+{
+    GError *mcerror = NULL;
+    void *ret_value;
+
+    /* reset interrupt flag */
+    tty_got_interrupt ();
+
+    ret_value = sftpfs_opendir (vpath, &mcerror);
+    mc_error_message (&mcerror, NULL);
+    return ret_value;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Callback for reading directory entry.
+ *
+ * @param data directory data handler
+ * @return information about direntry if success, NULL otherwise
+ */
+
+static struct vfs_dirent *
+sftpfs_cb_readdir (void *data)
+{
+    GError *mcerror = NULL;
+    struct vfs_dirent *sftpfs_dirent;
+
+    if (tty_got_interrupt ())
+    {
+        tty_disable_interrupt_key ();
+        return NULL;
+    }
+
+    sftpfs_dirent = sftpfs_readdir (data, &mcerror);
+    if (!mc_error_message (&mcerror, NULL))
+    {
+        if (sftpfs_dirent != NULL)
+            vfs_print_message (_("sftp: (Ctrl-G break) Listing... %s"), sftpfs_dirent->d_name);
+        else
+            vfs_print_message ("%s", _("sftp: Listing done."));
+    }
+
+    return sftpfs_dirent;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Callback for closing directory.
+ *
+ * @param data directory data handler
+ * @return 0 if success, negative value otherwise
+ */
+
+static int
+sftpfs_cb_closedir (void *data)
+{
+    int rc;
+    GError *mcerror = NULL;
+
+    rc = sftpfs_closedir (data, &mcerror);
+    mc_error_message (&mcerror, NULL);
+    return rc;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Callback for lstat VFS-function.
+ *
+ * @param vpath path to file or directory
+ * @param buf   buffer for store stat-info
+ * @return 0 if success, negative value otherwise
+ */
+
+static int
+sftpfs_cb_lstat (const vfs_path_t * vpath, struct stat *buf)
+{
+    int rc;
+    GError *mcerror = NULL;
+
+    rc = sftpfs_lstat (vpath, buf, &mcerror);
+    mc_error_message (&mcerror, NULL);
+    return rc;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Callback for stat VFS-function.
+ *
+ * @param vpath path to file or directory
+ * @param buf   buffer for store stat-info
+ * @return 0 if success, negative value otherwise
+ */
+
+static int
+sftpfs_cb_stat (const vfs_path_t * vpath, struct stat *buf)
+{
+    int rc;
+    GError *mcerror = NULL;
+
+    rc = sftpfs_stat (vpath, buf, &mcerror);
+    mc_error_message (&mcerror, NULL);
+    return rc;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Callback for fstat VFS-function.
+ *
+ * @param data file data handler
+ * @param buf  buffer for store stat-info
+ * @return 0 if success, negative value otherwise
+ */
+
+static int
+sftpfs_cb_fstat (void *data, struct stat *buf)
+{
+    int rc;
+    GError *mcerror = NULL;
+
+    rc = sftpfs_fstat (data, buf, &mcerror);
+    mc_error_message (&mcerror, NULL);
+    return rc;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Callback for readlink VFS-function.
+ *
+ * @param vpath path to file or directory
+ * @param buf   buffer for store stat-info
+ * @param size  buffer size
+ * @return 0 if success, negative value otherwise
+ */
+
+static int
+sftpfs_cb_readlink (const vfs_path_t * vpath, char *buf, size_t size)
+{
+    int rc;
+    GError *mcerror = NULL;
+
+    rc = sftpfs_readlink (vpath, buf, size, &mcerror);
+    mc_error_message (&mcerror, NULL);
+    return rc;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Callback for utime VFS-function.
+ *
+ * @param vpath path to file or directory
+ * @param times access and modification time to set
+ * @return 0 if success, negative value otherwise
+ */
+
+static int
+sftpfs_cb_utime (const vfs_path_t * vpath, mc_timesbuf_t * times)
+{
+    int rc;
+    GError *mcerror = NULL;
+
+#ifdef HAVE_UTIMENSAT
+    time_t atime = (*times)[0].tv_sec;
+    time_t mtime = (*times)[1].tv_sec;
+#else
+    time_t atime = times->actime;
+    time_t mtime = times->modtime;
+#endif
+
+    rc = sftpfs_utime (vpath, atime, mtime, &mcerror);
+    mc_error_message (&mcerror, NULL);
+    return rc;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Callback for symlink VFS-function.
+ *
+ * @param vpath1 path to file or directory
+ * @param vpath2 path to symlink
+ * @return 0 if success, negative value otherwise
+ */
+
+static int
+sftpfs_cb_symlink (const vfs_path_t * vpath1, const vfs_path_t * vpath2)
+{
+    int rc;
+    GError *mcerror = NULL;
+
+    rc = sftpfs_symlink (vpath1, vpath2, &mcerror);
+    mc_error_message (&mcerror, NULL);
+    return rc;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Callback for symlink VFS-function.
+ *
+ * @param vpath unused
+ * @param mode  unused
+ * @param dev   unused
+ * @return always 0
+ */
+
+static int
+sftpfs_cb_mknod (const vfs_path_t * vpath, mode_t mode, dev_t dev)
+{
+    (void) vpath;
+    (void) mode;
+    (void) dev;
+
+    return 0;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Callback for link VFS-function.
+ *
+ * @param vpath1 unused
+ * @param vpath2 unused
+ * @return always 0
+ */
+
+static int
+sftpfs_cb_link (const vfs_path_t * vpath1, const vfs_path_t * vpath2)
+{
+    (void) vpath1;
+    (void) vpath2;
+
+    return 0;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Callback for chown VFS-function.
+ *
+ * @param vpath unused
+ * @param owner unused
+ * @param group unused
+ * @return always 0
+ */
+
+static int
+sftpfs_cb_chown (const vfs_path_t * vpath, uid_t owner, gid_t group)
+{
+    (void) vpath;
+    (void) owner;
+    (void) group;
+
+    return 0;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Callback for reading file content.
+ *
+ * @param data   file data handler
+ * @param buffer buffer for data
+ * @param count  data size
+ * @return 0 if success, negative value otherwise
+ */
+
+static ssize_t
+sftpfs_cb_read (void *data, char *buffer, size_t count)
+{
+    int rc;
+    GError *mcerror = NULL;
+    vfs_file_handler_t *fh = VFS_FILE_HANDLER (data);
+
+    if (tty_got_interrupt ())
+    {
+        tty_disable_interrupt_key ();
+        return 0;
+    }
+
+    rc = sftpfs_read_file (fh, buffer, count, &mcerror);
+    mc_error_message (&mcerror, NULL);
+    return rc;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Callback for writing file content.
+ *
+ * @param data  file data handler
+ * @param buf   buffer for data
+ * @param count data size
+ * @return 0 if success, negative value otherwise
+ */
+
+static ssize_t
+sftpfs_cb_write (void *data, const char *buf, size_t nbyte)
+{
+    int rc;
+    GError *mcerror = NULL;
+    vfs_file_handler_t *fh = VFS_FILE_HANDLER (data);
+
+    rc = sftpfs_write_file (fh, buf, nbyte, &mcerror);
+    mc_error_message (&mcerror, NULL);
+    return rc;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Callback for close file.
+ *
+ * @param data file data handler
+ * @return 0 if success, negative value otherwise
+ */
+
+static int
+sftpfs_cb_close (void *data)
+{
+    int rc;
+    GError *mcerror = NULL;
+    struct vfs_s_super *super = VFS_FILE_HANDLER_SUPER (data);
+    vfs_file_handler_t *fh = VFS_FILE_HANDLER (data);
+
+    super->fd_usage--;
+    if (super->fd_usage == 0)
+        vfs_stamp_create (vfs_sftpfs_ops, super);
+
+    rc = sftpfs_close_file (fh, &mcerror);
+    mc_error_message (&mcerror, NULL);
+
+    if (fh->handle != -1)
+        close (fh->handle);
+
+    vfs_s_free_inode (vfs_sftpfs_ops, fh->ino);
+
+    return rc;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Callback for chmod VFS-function.
+ *
+ * @param vpath path to file or directory
+ * @param mode  mode (see man 2 open)
+ * @return 0 if success, negative value otherwise
+ */
+
+static int
+sftpfs_cb_chmod (const vfs_path_t * vpath, mode_t mode)
+{
+    int rc;
+    GError *mcerror = NULL;
+
+    rc = sftpfs_chmod (vpath, mode, &mcerror);
+    mc_error_message (&mcerror, NULL);
+    return rc;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Callback for mkdir VFS-function.
+ *
+ * @param vpath path directory
+ * @param mode  mode (see man 2 open)
+ * @return 0 if success, negative value otherwise
+ */
+
+static int
+sftpfs_cb_mkdir (const vfs_path_t * vpath, mode_t mode)
+{
+    int rc;
+    GError *mcerror = NULL;
+
+    rc = sftpfs_mkdir (vpath, mode, &mcerror);
+    mc_error_message (&mcerror, NULL);
+    return rc;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Callback for rmdir VFS-function.
+ *
+ * @param vpath path directory
+ * @return 0 if success, negative value otherwise
+ */
+
+static int
+sftpfs_cb_rmdir (const vfs_path_t * vpath)
+{
+    int rc;
+    GError *mcerror = NULL;
+
+    rc = sftpfs_rmdir (vpath, &mcerror);
+    mc_error_message (&mcerror, NULL);
+    return rc;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Callback for lseek VFS-function.
+ *
+ * @param data   file data handler
+ * @param offset file offset
+ * @param whence method of seek (at begin, at current, at end)
+ * @return 0 if success, negative value otherwise
+ */
+
+static off_t
+sftpfs_cb_lseek (void *data, off_t offset, int whence)
+{
+    off_t ret_offset;
+    vfs_file_handler_t *fh = VFS_FILE_HANDLER (data);
+    GError *mcerror = NULL;
+
+    ret_offset = sftpfs_lseek (fh, offset, whence, &mcerror);
+    mc_error_message (&mcerror, NULL);
+    return ret_offset;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Callback for unlink VFS-function.
+ *
+ * @param vpath path to file or directory
+ * @return 0 if success, negative value otherwise
+ */
+
+static int
+sftpfs_cb_unlink (const vfs_path_t * vpath)
+{
+    int rc;
+    GError *mcerror = NULL;
+
+    rc = sftpfs_unlink (vpath, &mcerror);
+    mc_error_message (&mcerror, NULL);
+    return rc;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Callback for rename VFS-function.
+ *
+ * @param vpath1 path to source file or directory
+ * @param vpath2 path to destination file or directory
+ * @return 0 if success, negative value otherwise
+ */
+
+static int
+sftpfs_cb_rename (const vfs_path_t * vpath1, const vfs_path_t * vpath2)
+{
+    int rc;
+    GError *mcerror = NULL;
+
+    rc = sftpfs_rename (vpath1, vpath2, &mcerror);
+    mc_error_message (&mcerror, NULL);
+    return rc;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Callback for errno VFS-function.
+ *
+ * @param me unused
+ * @return value of errno global variable
+ */
+
+static int
+sftpfs_cb_errno (struct vfs_class *me)
+{
+    (void) me;
+
+    return errno;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Callback for fill_names VFS function.
+ * Add SFTP connections to the 'Active VFS connections'  list
+ *
+ * @param me   unused
+ * @param func callback function for adding SFTP-connection to list of active connections
+ */
+
+static void
+sftpfs_cb_fill_names (struct vfs_class *me, fill_names_f func)
+{
+    GList *iter;
+
+    (void) me;
+
+    for (iter = sftpfs_subclass.supers; iter != NULL; iter = g_list_next (iter))
+    {
+        const struct vfs_s_super *super = (const struct vfs_s_super *) iter->data;
+        char *name;
+
+        name = vfs_path_element_build_pretty_path_str (super->path_element);
+
+        func (name);
+        g_free (name);
+    }
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Callback for checking if connection is equal to existing connection.
+ *
+ * @param vpath_element path element with connetion data
+ * @param super         data with exists connection
+ * @param vpath         unused
+ * @param cookie        unused
+ * @return TRUE if connections is equal, FALSE otherwise
+ */
+
+static gboolean
+sftpfs_archive_same (const vfs_path_element_t * vpath_element, struct vfs_s_super *super,
+                     const vfs_path_t * vpath, void *cookie)
+{
+    int result;
+    vfs_path_element_t *orig_connect_info;
+
+    (void) vpath;
+    (void) cookie;
+
+    orig_connect_info = SFTP_SUPER (super)->original_connection_info;
+
+    result = ((g_strcmp0 (vpath_element->host, orig_connect_info->host) == 0)
+              && (g_strcmp0 (vpath_element->user, orig_connect_info->user) == 0)
+              && (vpath_element->port == orig_connect_info->port));
+
+    return result;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static struct vfs_s_super *
+sftpfs_new_archive (struct vfs_class *me)
+{
+    sftpfs_super_t *arch;
+
+    arch = g_new0 (sftpfs_super_t, 1);
+    arch->base.me = me;
+    arch->base.name = g_strdup (PATH_SEP_STR);
+    arch->auth_type = NONE;
+    arch->config_auth_type = NONE;
+    arch->socket_handle = LIBSSH2_INVALID_SOCKET;
+
+    return VFS_SUPER (arch);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Callback for opening new connection.
+ *
+ * @param super         connection data
+ * @param vpath         unused
+ * @param vpath_element path element with connetion data
+ * @return 0 if success, -1 otherwise
+ */
+
+static int
+sftpfs_open_archive (struct vfs_s_super *super, const vfs_path_t * vpath,
+                     const vfs_path_element_t * vpath_element)
+{
+    GError *mcerror = NULL;
+    sftpfs_super_t *sftpfs_super = SFTP_SUPER (super);
+    int ret_value;
+
+    (void) vpath;
+
+    if (vpath_element->host == NULL || *vpath_element->host == '\0')
+    {
+        vfs_print_message ("%s", _("sftp: Invalid host name."));
+        vpath_element->class->verrno = EPERM;
+        return -1;
+    }
+
+    sftpfs_super->original_connection_info = vfs_path_element_clone (vpath_element);
+    super->path_element = vfs_path_element_clone (vpath_element);
+
+    sftpfs_fill_connection_data_from_config (super, &mcerror);
+    if (mc_error_message (&mcerror, &ret_value))
+    {
+        vpath_element->class->verrno = ret_value;
+        return -1;
+    }
+
+    super->root =
+        vfs_s_new_inode (vpath_element->class, super,
+                         vfs_s_default_stat (vpath_element->class, S_IFDIR | 0755));
+
+    ret_value = sftpfs_open_connection (super, &mcerror);
+    mc_error_message (&mcerror, NULL);
+    return ret_value;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Callback for closing connection.
+ *
+ * @param me    unused
+ * @param super connection data
+ */
+
+static void
+sftpfs_free_archive (struct vfs_class *me, struct vfs_s_super *super)
+{
+    GError *mcerror = NULL;
+
+    (void) me;
+
+    sftpfs_close_connection (super, "Normal Shutdown", &mcerror);
+
+    vfs_path_element_free (SFTP_SUPER (super)->original_connection_info);
+
+    mc_error_message (&mcerror, NULL);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Callback for getting directory content.
+ *
+ * @param me          unused
+ * @param dir         unused
+ * @param remote_path unused
+ * @return always 0
+ */
+
+static int
+sftpfs_cb_dir_load (struct vfs_class *me, struct vfs_s_inode *dir, const char *remote_path)
+{
+    (void) me;
+    (void) dir;
+    (void) remote_path;
+
+    return 0;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/*** public functions ****************************************************************************/
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Initialization of SFTP Virtual File Sysytem.
+ */
+
+void
+vfs_init_sftpfs (void)
+{
+    tcp_init ();
+
+    vfs_init_subclass (&sftpfs_subclass, "sftpfs", VFSF_NOLINKS | VFSF_REMOTE, "sftp");
+
+    vfs_sftpfs_ops->init = sftpfs_cb_init;
+    vfs_sftpfs_ops->done = sftpfs_cb_done;
+
+    vfs_sftpfs_ops->fill_names = sftpfs_cb_fill_names;
+
+    vfs_sftpfs_ops->opendir = sftpfs_cb_opendir;
+    vfs_sftpfs_ops->readdir = sftpfs_cb_readdir;
+    vfs_sftpfs_ops->closedir = sftpfs_cb_closedir;
+    vfs_sftpfs_ops->mkdir = sftpfs_cb_mkdir;
+    vfs_sftpfs_ops->rmdir = sftpfs_cb_rmdir;
+
+    vfs_sftpfs_ops->stat = sftpfs_cb_stat;
+    vfs_sftpfs_ops->lstat = sftpfs_cb_lstat;
+    vfs_sftpfs_ops->fstat = sftpfs_cb_fstat;
+    vfs_sftpfs_ops->readlink = sftpfs_cb_readlink;
+    vfs_sftpfs_ops->symlink = sftpfs_cb_symlink;
+    vfs_sftpfs_ops->link = sftpfs_cb_link;
+    vfs_sftpfs_ops->utime = sftpfs_cb_utime;
+    vfs_sftpfs_ops->mknod = sftpfs_cb_mknod;
+    vfs_sftpfs_ops->chown = sftpfs_cb_chown;
+    vfs_sftpfs_ops->chmod = sftpfs_cb_chmod;
+
+    vfs_sftpfs_ops->open = sftpfs_cb_open;
+    vfs_sftpfs_ops->read = sftpfs_cb_read;
+    vfs_sftpfs_ops->write = sftpfs_cb_write;
+    vfs_sftpfs_ops->close = sftpfs_cb_close;
+    vfs_sftpfs_ops->lseek = sftpfs_cb_lseek;
+    vfs_sftpfs_ops->unlink = sftpfs_cb_unlink;
+    vfs_sftpfs_ops->rename = sftpfs_cb_rename;
+    vfs_sftpfs_ops->ferrno = sftpfs_cb_errno;
+
+    sftpfs_subclass.archive_same = sftpfs_archive_same;
+    sftpfs_subclass.new_archive = sftpfs_new_archive;
+    sftpfs_subclass.open_archive = sftpfs_open_archive;
+    sftpfs_subclass.free_archive = sftpfs_free_archive;
+    sftpfs_subclass.fh_new = sftpfs_fh_new;
+    sftpfs_subclass.dir_load = sftpfs_cb_dir_load;
+
+    vfs_register_class (vfs_sftpfs_ops);
+}
+
+/* --------------------------------------------------------------------------------------------- */