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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
*
* Copyright (C) 2011 Colin Walters <walters@verbum.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Author: Colin Walters <walters@verbum.org>
*/
#include "config.h"
#include "ot-builtins.h"
#include "ostree.h"
#include <glib/gi18n.h>
static gboolean quiet;
static GOptionEntry options[] = {
{ "quiet", 'q', 0, G_OPTION_ARG_NONE, &quiet, "Don't display informational messages", NULL },
{ NULL }
};
typedef struct {
guint n_objects;
gboolean had_error;
} OtFsckData;
static gboolean
checksum_archived_file (OtFsckData *data,
GFile *file,
GChecksum **out_checksum,
GError **error)
{
gboolean ret = FALSE;
GChecksum *ret_checksum = NULL;
GInputStream *in = NULL;
GVariant *xattrs = NULL;
GFileInfo *file_info = NULL;
char buf[8192];
gsize bytes_read;
guint32 mode;
if (!ostree_parse_archived_file (file, &file_info, &xattrs, &in, NULL, error))
goto out;
ret_checksum = g_checksum_new (G_CHECKSUM_SHA256);
mode = g_file_info_get_attribute_uint32 (file_info, "unix::mode");
if (S_ISREG (mode))
{
g_assert (in != NULL);
do
{
if (!g_input_stream_read_all (in, buf, sizeof(buf), &bytes_read, NULL, error))
goto out;
g_checksum_update (ret_checksum, (guint8*)buf, bytes_read);
}
while (bytes_read > 0);
}
else if (S_ISLNK (mode))
{
const char *target = g_file_info_get_attribute_byte_string (file_info, "standard::symlink-target");
g_checksum_update (ret_checksum, (guint8*) target, strlen (target));
}
else if (S_ISBLK (mode) || S_ISCHR (mode))
{
guint32 rdev = g_file_info_get_attribute_uint32 (file_info, "unix::rdev");
guint32 rdev_be;
rdev_be = GUINT32_TO_BE (rdev);
g_checksum_update (ret_checksum, (guint8*)&rdev_be, 4);
}
ostree_checksum_update_stat (ret_checksum,
g_file_info_get_attribute_uint32 (file_info, "unix::uid"),
g_file_info_get_attribute_uint32 (file_info, "unix::gid"),
mode);
if (xattrs)
g_checksum_update (ret_checksum, (guint8*)g_variant_get_data (xattrs), g_variant_get_size (xattrs));
ret = TRUE;
ot_transfer_out_value (out_checksum, &ret_checksum);
out:
ot_clear_checksum (&ret_checksum);
g_clear_object (&in);
g_clear_object (&file_info);
ot_clear_gvariant (&xattrs);
return ret;
}
static void
object_iter_callback (OstreeRepo *repo,
const char *exp_checksum,
OstreeObjectType objtype,
GFile *objf,
GFileInfo *file_info,
gpointer user_data)
{
OtFsckData *data = user_data;
const char *path = NULL;
GChecksum *real_checksum = NULL;
GError *error = NULL;
path = ot_gfile_get_path_cached (objf);
/* nlinks = g_file_info_get_attribute_uint32 (file_info, "unix::nlink");
if (nlinks < 2 && !quiet)
g_printerr ("note: floating object: %s\n", path); */
if (ostree_repo_get_mode (repo) == OSTREE_REPO_MODE_ARCHIVE
&& !OSTREE_OBJECT_TYPE_IS_META (objtype))
{
if (!g_str_has_suffix (path, ".archive"))
{
g_set_error (&error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Invalid archive filename '%s'",
path);
goto out;
}
if (!checksum_archived_file (data, objf, &real_checksum, &error))
goto out;
}
else
{
if (!ostree_checksum_file (objf, objtype, &real_checksum, NULL, &error))
goto out;
}
if (strcmp (exp_checksum, g_checksum_get_string (real_checksum)) != 0)
{
data->had_error = TRUE;
g_printerr ("ERROR: corrupted object '%s' expected checksum: %s\n",
exp_checksum, g_checksum_get_string (real_checksum));
}
data->n_objects++;
out:
ot_clear_checksum (&real_checksum);
if (error != NULL)
{
g_printerr ("%s\n", error->message);
g_clear_error (&error);
}
}
gboolean
ostree_builtin_fsck (int argc, char **argv, const char *repo_path, GError **error)
{
GOptionContext *context;
OtFsckData data;
gboolean ret = FALSE;
OstreeRepo *repo = NULL;
context = g_option_context_new ("- Check the repository for consistency");
g_option_context_add_main_entries (context, options, NULL);
if (!g_option_context_parse (context, &argc, &argv, error))
goto out;
data.n_objects = 0;
data.had_error = FALSE;
repo = ostree_repo_new (repo_path);
if (!ostree_repo_check (repo, error))
goto out;
if (!ostree_repo_iter_objects (repo, object_iter_callback, &data, error))
goto out;
if (data.had_error)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Encountered filesystem consistency errors");
goto out;
}
if (!quiet)
g_printerr ("Total Objects: %u\n", data.n_objects);
ret = TRUE;
out:
if (context)
g_option_context_free (context);
g_clear_object (&repo);
return ret;
}
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