/**
* ostree_sysroot_get_deployment_origin_path:
* @deployment_path: A deployment path
*
* Returns: (transfer full): Path to deployment origin file
*/
GFile *
ostree_sysroot_get_deployment_origin_path (GFile *deployment_path)
{
g_autoptr(GFile) deployment_parent = g_file_get_parent (deployment_path);
return ot_gfile_resolve_path_printf (deployment_parent,
"%s.origin",
gs_file_get_path_cached (deployment_path));
}
static gboolean
cleanup_other_bootversions (OstreeSysroot *self,
GCancellable *cancellable,
GError **error)
{
gboolean ret = FALSE;
int cleanup_bootversion;
int cleanup_subbootversion;
gs_unref_object GFile *cleanup_boot_dir = NULL;
cleanup_bootversion = self->bootversion == 0 ? 1 : 0;
cleanup_subbootversion = self->subbootversion == 0 ? 1 : 0;
cleanup_boot_dir = ot_gfile_resolve_path_printf (self->path, "boot/loader.%d", cleanup_bootversion);
if (!gs_shutil_rm_rf (cleanup_boot_dir, cancellable, error))
goto out;
g_clear_object (&cleanup_boot_dir);
cleanup_boot_dir = ot_gfile_resolve_path_printf (self->path, "ostree/boot.%d", cleanup_bootversion);
if (!gs_shutil_rm_rf (cleanup_boot_dir, cancellable, error))
goto out;
g_clear_object (&cleanup_boot_dir);
cleanup_boot_dir = ot_gfile_resolve_path_printf (self->path, "ostree/boot.%d.0", cleanup_bootversion);
if (!gs_shutil_rm_rf (cleanup_boot_dir, cancellable, error))
goto out;
g_clear_object (&cleanup_boot_dir);
cleanup_boot_dir = ot_gfile_resolve_path_printf (self->path, "ostree/boot.%d.1", cleanup_bootversion);
if (!gs_shutil_rm_rf (cleanup_boot_dir, cancellable, error))
goto out;
g_clear_object (&cleanup_boot_dir);
cleanup_boot_dir = ot_gfile_resolve_path_printf (self->path, "ostree/boot.%d.%d", self->bootversion,
cleanup_subbootversion);
if (!gs_shutil_rm_rf (cleanup_boot_dir, cancellable, error))
goto out;
g_clear_object (&cleanup_boot_dir);
ret = TRUE;
out:
return ret;
}
static gboolean
_ostree_bootloader_uboot_write_config (OstreeBootloader *bootloader,
int bootversion,
GCancellable *cancellable,
GError **error)
{
OstreeBootloaderUboot *self = OSTREE_BOOTLOADER_UBOOT (bootloader);
g_autoptr(GFile) new_config_path = NULL;
g_autofree char *config_contents = NULL;
g_autofree char *new_config_contents = NULL;
g_autoptr(GPtrArray) new_lines = NULL;
/* This should follow the symbolic link to the current bootversion. */
config_contents = glnx_file_get_contents_utf8_at (AT_FDCWD, gs_file_get_path_cached (self->config_path), NULL,
cancellable, error);
if (!config_contents)
return FALSE;
new_config_path = ot_gfile_resolve_path_printf (self->sysroot->path, "boot/loader.%d/uEnv.txt",
bootversion);
new_lines = g_ptr_array_new_with_free_func (g_free);
if (!create_config_from_boot_loader_entries (self, bootversion, new_lines,
cancellable, error))
return FALSE;
new_config_contents = _ostree_sysroot_join_lines (new_lines);
{
g_autoptr(GBytes) new_config_contents_bytes =
g_bytes_new_static (new_config_contents,
strlen (new_config_contents));
if (!ot_gfile_replace_contents_fsync (new_config_path, new_config_contents_bytes,
cancellable, error))
return FALSE;
}
return TRUE;
}
static gboolean
resolve_refspec (OstreeRepo *self,
const char *remote,
const char *ref,
gboolean allow_noent,
char **out_rev,
GError **error)
{
gboolean ret = FALSE;
__attribute__((unused)) GCancellable *cancellable = NULL;
GError *temp_error = NULL;
g_autofree char *ret_rev = NULL;
g_autoptr(GFile) child = NULL;
g_return_val_if_fail (ref != NULL, FALSE);
/* We intentionally don't allow a ref that looks like a checksum */
if (ostree_validate_checksum_string (ref, NULL))
{
ret_rev = g_strdup (ref);
}
else if (remote != NULL)
{
child = ot_gfile_resolve_path_printf (self->remote_heads_dir, "%s/%s",
remote, ref);
if (!g_file_query_exists (child, NULL))
g_clear_object (&child);
}
else
{
child = g_file_resolve_relative_path (self->local_heads_dir, ref);
if (!g_file_query_exists (child, NULL))
{
g_clear_object (&child);
child = g_file_resolve_relative_path (self->remote_heads_dir, ref);
if (!g_file_query_exists (child, NULL))
{
g_clear_object (&child);
if (!find_ref_in_remotes (self, ref, &child, error))
goto out;
}
}
}
if (child)
{
if ((ret_rev = gs_file_load_contents_utf8 (child, NULL, &temp_error)) == NULL)
{
g_propagate_error (error, temp_error);
g_prefix_error (error, "Couldn't open ref '%s': ", gs_file_get_path_cached (child));
goto out;
}
g_strchomp (ret_rev);
if (!ostree_validate_checksum_string (ret_rev, error))
goto out;
}
else
{
if (!resolve_refspec_fallback (self, remote, ref, allow_noent,
&ret_rev, cancellable, error))
goto out;
}
ot_transfer_out_value (out_rev, &ret_rev);
ret = TRUE;
out:
return ret;
}
static gboolean
_ostree_bootloader_grub2_write_config (OstreeBootloader *bootloader,
int bootversion,
GCancellable *cancellable,
GError **error)
{
OstreeBootloaderGrub2 *self = OSTREE_BOOTLOADER_GRUB2 (bootloader);
gboolean ret = FALSE;
gs_unref_object GFile *efi_new_config_temp = NULL;
gs_unref_object GFile *efi_orig_config = NULL;
gs_unref_object GFile *new_config_path = NULL;
gs_unref_object GSSubprocessContext *procctx = NULL;
gs_unref_object GSSubprocess *proc = NULL;
gs_strfreev char **child_env = g_get_environ ();
gs_free char *bootversion_str = g_strdup_printf ("%u", (guint)bootversion);
gs_unref_object GFile *config_path_efi_dir = NULL;
if (self->is_efi)
{
config_path_efi_dir = g_file_get_parent (self->config_path_efi);
new_config_path = g_file_get_child (config_path_efi_dir, "grub.cfg.new");
/* We use grub2-mkconfig to write to a temporary file first */
if (!ot_gfile_ensure_unlinked (new_config_path, cancellable, error))
goto out;
}
else
{
new_config_path = ot_gfile_resolve_path_printf (self->sysroot->path, "boot/loader.%d/grub.cfg",
bootversion);
}
procctx = gs_subprocess_context_newv ("grub2-mkconfig", "-o",
gs_file_get_path_cached (new_config_path),
NULL);
child_env = g_environ_setenv (child_env, "_OSTREE_GRUB2_BOOTVERSION", bootversion_str, TRUE);
/* We have to pass our state to the child */
if (self->is_efi)
child_env = g_environ_setenv (child_env, "_OSTREE_GRUB2_IS_EFI", "1", TRUE);
gs_subprocess_context_set_environment (procctx, child_env);
gs_subprocess_context_set_stdout_disposition (procctx, GS_SUBPROCESS_STREAM_DISPOSITION_NULL);
if (g_getenv ("OSTREE_DEBUG_GRUB2"))
gs_subprocess_context_set_stderr_disposition (procctx, GS_SUBPROCESS_STREAM_DISPOSITION_INHERIT);
else
gs_subprocess_context_set_stderr_disposition (procctx, GS_SUBPROCESS_STREAM_DISPOSITION_NULL);
/* In the current Fedora grub2 package, this script doesn't even try
to be atomic; it just does:
cat ${grub_cfg}.new > ${grub_cfg}
rm -f ${grub_cfg}.new
Upstream is fixed though.
*/
proc = gs_subprocess_new (procctx, cancellable, error);
if (!proc)
goto out;
if (!gs_subprocess_wait_sync_check (proc, cancellable, error))
goto out;
/* Now let's fdatasync() for the new file */
if (!gs_file_sync_data (new_config_path, cancellable, error))
goto out;
if (self->is_efi)
{
gs_unref_object GFile *config_path_efi_old = g_file_get_child (config_path_efi_dir, "grub.cfg.old");
/* copy current to old */
if (!ot_gfile_ensure_unlinked (config_path_efi_old, cancellable, error))
goto out;
if (!g_file_copy (self->config_path_efi, config_path_efi_old,
G_FILE_COPY_OVERWRITE, cancellable, NULL, NULL, error))
goto out;
if (!ot_gfile_ensure_unlinked (config_path_efi_old, cancellable, error))
goto out;
/* NOTE: NON-ATOMIC REPLACEMENT; WE can't do anything else on FAT;
* see https://bugzilla.gnome.org/show_bug.cgi?id=724246
*/
if (!ot_gfile_ensure_unlinked (self->config_path_efi, cancellable, error))
goto out;
if (!gs_file_rename (new_config_path, self->config_path_efi,
cancellable, error))
goto out;
}
ret = TRUE;
out:
return ret;
}
static gboolean
_ostree_bootloader_syslinux_write_config (OstreeBootloader *bootloader,
int bootversion,
GCancellable *cancellable,
GError **error)
{
gboolean ret = FALSE;
OstreeBootloaderSyslinux *self = OSTREE_BOOTLOADER_SYSLINUX (bootloader);
gs_unref_object GFile *new_config_path = NULL;
gs_free char *config_contents = NULL;
gs_free char *new_config_contents = NULL;
gs_unref_ptrarray GPtrArray *new_lines = NULL;
gs_unref_ptrarray GPtrArray *tmp_lines = NULL;
gs_free char *kernel_arg = NULL;
gboolean saw_default = FALSE;
gboolean regenerate_default = FALSE;
gboolean parsing_label = FALSE;
char **lines = NULL;
char **iter;
guint i;
new_config_path = ot_gfile_resolve_path_printf (self->sysroot->path, "boot/loader.%d/syslinux.cfg",
bootversion);
/* This should follow the symbolic link to the current bootversion. */
config_contents = gs_file_load_contents_utf8 (self->config_path, cancellable, error);
if (!config_contents)
goto out;
lines = g_strsplit (config_contents, "\n", -1);
new_lines = g_ptr_array_new_with_free_func (g_free);
tmp_lines = g_ptr_array_new_with_free_func (g_free);
/* Note special iteration condition here; we want to also loop one
* more time at the end where line = NULL to ensure we finish off
* processing the last LABEL.
*/
iter = lines;
while (TRUE)
{
char *line = *iter;
gboolean skip = FALSE;
if (parsing_label &&
(line == NULL || !g_str_has_prefix (line, "\t")))
{
parsing_label = FALSE;
if (kernel_arg == NULL)
{
g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"No KERNEL argument found after LABEL");
goto out;
}
/* If this is a non-ostree kernel, just emit the lines
* we saw.
*/
if (!g_str_has_prefix (kernel_arg, "/ostree/"))
{
for (i = 0; i < tmp_lines->len; i++)
{
g_ptr_array_add (new_lines, tmp_lines->pdata[i]);
tmp_lines->pdata[i] = NULL; /* Transfer ownership */
}
}
else
{
/* Otherwise, we drop the config on the floor - it
* will be regenerated.
*/
g_ptr_array_set_size (tmp_lines, 0);
}
}
if (line == NULL)
break;
if (!parsing_label &&
(g_str_has_prefix (line, "LABEL ")))
{
parsing_label = TRUE;
g_ptr_array_set_size (tmp_lines, 0);
}
else if (parsing_label && g_str_has_prefix (line, "\tKERNEL "))
{
g_free (kernel_arg);
kernel_arg = g_strdup (line + strlen ("\tKERNEL "));
}
else if (!parsing_label &&
(g_str_has_prefix (line, "DEFAULT ")))
{
saw_default = TRUE;
/* XXX Searching for patterns in the title is rather brittle,
* but this hack is at least noted in the code that builds
* the title to hopefully avoid regressions. */
if (g_str_has_prefix (line, "DEFAULT ostree:") || /* old format */
strstr (line, "(ostree") != NULL) /* new format */
{
regenerate_default = TRUE;
}
skip = TRUE;
}
if (skip)
{
g_free (line);
}
else
{
if (parsing_label)
{
g_ptr_array_add (tmp_lines, line);
}
else
{
g_ptr_array_add (new_lines, line);
}
}
/* Transfer ownership */
*iter = NULL;
iter++;
}
if (!saw_default)
regenerate_default = TRUE;
if (!append_config_from_boostree_loader_entries (self, regenerate_default,
bootversion, new_lines,
cancellable, error))
goto out;
new_config_contents = _ostree_sysroot_join_lines (new_lines);
{
gs_unref_bytes GBytes *new_config_contents_bytes =
g_bytes_new_static (new_config_contents,
strlen (new_config_contents));
if (!ot_gfile_replace_contents_fsync (new_config_path, new_config_contents_bytes,
cancellable, error))
goto out;
}
ret = TRUE;
out:
g_free (lines); /* Note we freed elements individually */
return ret;
}
/**
* ostree_repo_static_delta_execute_offline:
* @self: Repo
* @dir: Path to a directory containing static delta data
* @skip_validation: If %TRUE, assume data integrity
* @cancellable: Cancellable
* @error: Error
*
* Given a directory representing an already-downloaded static delta
* on disk, apply it, generating a new commit. The directory must be
* named with the form "FROM-TO", where both are checksums, and it
* must contain a file named "superblock", along with at least one part.
*/
gboolean
ostree_repo_static_delta_execute_offline (OstreeRepo *self,
GFile *dir,
gboolean skip_validation,
GCancellable *cancellable,
GError **error)
{
gboolean ret = FALSE;
guint i, n;
gs_unref_object GFile *meta_file = g_file_get_child (dir, "superblock");
gs_unref_variant GVariant *meta = NULL;
gs_unref_variant GVariant *headers = NULL;
gs_unref_variant GVariant *fallback = NULL;
if (!ot_util_variant_map (meta_file, G_VARIANT_TYPE (OSTREE_STATIC_DELTA_SUPERBLOCK_FORMAT),
FALSE, &meta, error))
goto out;
/* Parsing OSTREE_STATIC_DELTA_SUPERBLOCK_FORMAT */
/* Write the to-commit object */
{
gs_unref_variant GVariant *to_csum_v = NULL;
gs_free char *to_checksum = NULL;
gs_unref_variant GVariant *to_commit = NULL;
gboolean have_to_commit;
to_csum_v = g_variant_get_child_value (meta, 3);
if (!ostree_validate_structureof_csum_v (to_csum_v, error))
goto out;
to_checksum = ostree_checksum_from_bytes_v (to_csum_v);
if (!ostree_repo_has_object (self, OSTREE_OBJECT_TYPE_COMMIT, to_checksum,
&have_to_commit, cancellable, error))
goto out;
if (!have_to_commit)
{
to_commit = g_variant_get_child_value (meta, 4);
if (!ostree_repo_write_metadata (self, OSTREE_OBJECT_TYPE_COMMIT,
to_checksum, to_commit, NULL,
cancellable, error))
goto out;
}
}
fallback = g_variant_get_child_value (meta, 7);
if (g_variant_n_children (fallback) > 0)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Cannot execute delta offline: contains nonempty http fallback entries");
goto out;
}
headers = g_variant_get_child_value (meta, 6);
n = g_variant_n_children (headers);
for (i = 0; i < n; i++)
{
guint64 size;
guint64 usize;
const guchar *csum;
gboolean have_all;
gs_unref_variant GVariant *header = NULL;
gs_unref_variant GVariant *csum_v = NULL;
gs_unref_variant GVariant *objects = NULL;
gs_unref_object GFile *part_path = NULL;
gs_unref_object GInputStream *raw_in = NULL;
gs_unref_object GInputStream *in = NULL;
header = g_variant_get_child_value (headers, i);
g_variant_get (header, "(@aytt@ay)", &csum_v, &size, &usize, &objects);
if (!_ostree_repo_static_delta_part_have_all_objects (self, objects, &have_all,
cancellable, error))
goto out;
/* If we already have these objects, don't bother executing the
* static delta.
*/
if (have_all)
continue;
csum = ostree_checksum_bytes_peek_validate (csum_v, error);
if (!csum)
goto out;
part_path = ot_gfile_resolve_path_printf (dir, "%u", i);
in = (GInputStream*)g_file_read (part_path, cancellable, error);
if (!in)
goto out;
if (!skip_validation)
{
gs_free char *expected_checksum = ostree_checksum_from_bytes (csum);
if (!_ostree_static_delta_part_validate (self, part_path, i,
expected_checksum,
cancellable, error))
goto out;
}
{
GMappedFile *mfile = gs_file_map_noatime (part_path, cancellable, error);
gs_unref_bytes GBytes *bytes = NULL;
if (!mfile)
goto out;
bytes = g_mapped_file_get_bytes (mfile);
g_mapped_file_unref (mfile);
if (!_ostree_static_delta_part_execute (self, objects, bytes,
cancellable, error))
{
g_prefix_error (error, "executing delta part %i: ", i);
goto out;
}
}
}
ret = TRUE;
out:
return ret;
}
