static gboolean fsck_reachable_objects_from_commits (OtFsckData *data, GHashTable *commits, GCancellable *cancellable, GError **error) { gboolean ret = FALSE; GHashTableIter hash_iter; gpointer key, value; ot_lhash GHashTable *reachable_objects = NULL; ot_lobj GInputStream *input = NULL; ot_lobj GFileInfo *file_info = NULL; ot_lvariant GVariant *xattrs = NULL; ot_lvariant GVariant *metadata = NULL; ot_lfree guchar *computed_csum = NULL; ot_lfree char *tmp_checksum = NULL; reachable_objects = ostree_traverse_new_reachable (); g_hash_table_iter_init (&hash_iter, commits); while (g_hash_table_iter_next (&hash_iter, &key, &value)) { GVariant *serialized_key = key; const char *checksum; OstreeObjectType objtype; ostree_object_name_deserialize (serialized_key, &checksum, &objtype); g_assert (objtype == OSTREE_OBJECT_TYPE_COMMIT); if (!ostree_traverse_commit (data->repo, checksum, 0, reachable_objects, cancellable, error)) goto out; } g_hash_table_iter_init (&hash_iter, reachable_objects); while (g_hash_table_iter_next (&hash_iter, &key, &value)) { GVariant *serialized_key = key; const char *checksum; OstreeObjectType objtype; ostree_object_name_deserialize (serialized_key, &checksum, &objtype); g_clear_object (&input); g_clear_object (&file_info); g_clear_pointer (&xattrs, (GDestroyNotify) g_variant_unref); if (objtype == OSTREE_OBJECT_TYPE_COMMIT || objtype == OSTREE_OBJECT_TYPE_DIR_TREE || objtype == OSTREE_OBJECT_TYPE_DIR_META) { g_clear_pointer (&metadata, (GDestroyNotify) g_variant_unref); if (!ostree_repo_load_variant (data->repo, objtype, checksum, &metadata, error)) { g_prefix_error (error, "Loading metadata object %s: ", checksum); goto out; } if (objtype == OSTREE_OBJECT_TYPE_COMMIT) { if (!ostree_validate_structureof_commit (metadata, error)) { g_prefix_error (error, "While validating commit metadata '%s': ", checksum); goto out; } } else if (objtype == OSTREE_OBJECT_TYPE_DIR_TREE) { if (!ostree_validate_structureof_dirtree (metadata, error)) { g_prefix_error (error, "While validating directory tree '%s': ", checksum); goto out; } } else if (objtype == OSTREE_OBJECT_TYPE_DIR_META) { if (!ostree_validate_structureof_dirmeta (metadata, error)) { g_prefix_error (error, "While validating directory metadata '%s': ", checksum); goto out; } } else g_assert_not_reached (); input = g_memory_input_stream_new_from_data (g_variant_get_data (metadata), g_variant_get_size (metadata), NULL); } else if (objtype == OSTREE_OBJECT_TYPE_FILE) { guint32 mode; if (!ostree_repo_load_file (data->repo, checksum, &input, &file_info, &xattrs, cancellable, error)) { g_prefix_error (error, "Loading file object %s: ", checksum); goto out; } mode = g_file_info_get_attribute_uint32 (file_info, "unix::mode"); if (!ostree_validate_structureof_file_mode (mode, error)) { g_prefix_error (error, "While validating file '%s': ", checksum); goto out; } } else { g_assert_not_reached (); } g_free (computed_csum); if (!ostree_checksum_file_from_input (file_info, xattrs, input, objtype, &computed_csum, cancellable, error)) goto out; g_free (tmp_checksum); tmp_checksum = ostree_checksum_from_bytes (computed_csum); if (strcmp (checksum, tmp_checksum) != 0) { g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED, "corrupted object %s.%s; actual checksum: %s", checksum, ostree_object_type_to_string (objtype), tmp_checksum); goto out; } } ret = TRUE; out: return ret; }
static gboolean load_and_fsck_one_object (OstreeRepo *repo, const char *checksum, OstreeObjectType objtype, gboolean *out_found_corruption, GCancellable *cancellable, GError **error) { gboolean ret = FALSE; gboolean missing = FALSE; gs_unref_variant GVariant *metadata = NULL; gs_unref_object GInputStream *input = NULL; gs_unref_object GFileInfo *file_info = NULL; gs_unref_variant GVariant *xattrs = NULL; GError *temp_error = NULL; if (OSTREE_OBJECT_TYPE_IS_META (objtype)) { if (!ostree_repo_load_variant (repo, objtype, checksum, &metadata, &temp_error)) { if (g_error_matches (temp_error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND)) { g_clear_error (&temp_error); g_printerr ("Object missing: %s.%s\n", checksum, ostree_object_type_to_string (objtype)); missing = TRUE; } else { g_prefix_error (error, "Loading metadata object %s: ", checksum); goto out; } } else { if (objtype == OSTREE_OBJECT_TYPE_COMMIT) { if (!ostree_validate_structureof_commit (metadata, error)) { g_prefix_error (error, "While validating commit metadata '%s': ", checksum); goto out; } } else if (objtype == OSTREE_OBJECT_TYPE_DIR_TREE) { if (!ostree_validate_structureof_dirtree (metadata, error)) { g_prefix_error (error, "While validating directory tree '%s': ", checksum); goto out; } } else if (objtype == OSTREE_OBJECT_TYPE_DIR_META) { if (!ostree_validate_structureof_dirmeta (metadata, error)) { g_prefix_error (error, "While validating directory metadata '%s': ", checksum); goto out; } } input = g_memory_input_stream_new_from_data (g_variant_get_data (metadata), g_variant_get_size (metadata), NULL); } } else { guint32 mode; g_assert (objtype == OSTREE_OBJECT_TYPE_FILE); if (!ostree_repo_load_file (repo, checksum, &input, &file_info, &xattrs, cancellable, &temp_error)) { if (g_error_matches (temp_error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND)) { g_clear_error (&temp_error); g_printerr ("Object missing: %s.%s\n", checksum, ostree_object_type_to_string (objtype)); missing = TRUE; } else { g_prefix_error (error, "Loading file object %s: ", checksum); goto out; } } else { mode = g_file_info_get_attribute_uint32 (file_info, "unix::mode"); if (!ostree_validate_structureof_file_mode (mode, error)) { g_prefix_error (error, "While validating file '%s': ", checksum); goto out; } } } if (missing) { *out_found_corruption = TRUE; } else { gs_free guchar *computed_csum = NULL; gs_free char *tmp_checksum = NULL; if (!ostree_checksum_file_from_input (file_info, xattrs, input, objtype, &computed_csum, cancellable, error)) goto out; tmp_checksum = ostree_checksum_from_bytes (computed_csum); if (strcmp (checksum, tmp_checksum) != 0) { gs_free char *msg = g_strdup_printf ("corrupted object %s.%s; actual checksum: %s", checksum, ostree_object_type_to_string (objtype), tmp_checksum); if (opt_delete) { g_printerr ("%s\n", msg); (void) ostree_repo_delete_object (repo, objtype, checksum, cancellable, NULL); *out_found_corruption = TRUE; } else { g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED, msg); goto out; } } } ret = TRUE; out: return ret; }