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/*
* Copyright (C) 2018 Red Hat, Inc.
* Copyright (C) 2022 Endless OS Foundation LLC
*
* SPDX-License-Identifier: LGPL-2.0+
*
* 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, see <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <glib-unix.h>
#include <sched.h>
#include <signal.h>
#include <stdlib.h>
#include "ot-main.h"
#include "ot-admin-builtins.h"
#include "ot-admin-functions.h"
#include "ostree.h"
#include "otutil.h"
#include "ostree-cmd-private.h"
#include "ostree.h"
static gboolean opt_hold;
static GOptionEntry options[] = {
{ "hold", 0, 0, G_OPTION_ARG_NONE, &opt_hold, "Hold /boot open during finalization", NULL },
{ NULL }
};
/* Called by ostree-finalize-staged.service, and in turn
* invokes a cmdprivate function inside the shared library.
*/
gboolean
ot_admin_builtin_finalize_staged (int argc, char **argv, OstreeCommandInvocation *invocation, GCancellable *cancellable, GError **error)
{
/* Just a sanity check; we shouldn't be called outside of the service though.
*/
struct stat stbuf;
if (fstatat (AT_FDCWD, OSTREE_PATH_BOOTED, &stbuf, 0) < 0)
return TRUE;
g_autoptr(GOptionContext) context = g_option_context_new ("");
g_autoptr(OstreeSysroot) sysroot = NULL;
/* First parse the args without loading the sysroot to see what options are
* set. */
if (!ostree_admin_option_context_parse (context, options, &argc, &argv,
OSTREE_ADMIN_BUILTIN_FLAG_NO_LOAD,
invocation, &sysroot, cancellable, error))
return FALSE;
if (opt_hold)
{
/* Load the sysroot unlocked so that a separate namespace isn't
* created. */
if (!ostree_admin_sysroot_load (sysroot,
OSTREE_ADMIN_BUILTIN_FLAG_SUPERUSER | OSTREE_ADMIN_BUILTIN_FLAG_UNLOCKED,
cancellable, error))
return FALSE;
/* In case it's an automount, open /boot so that the automount doesn't
* expire until before this process exits. If it did expire and got
* unmounted, the service would be stopped and the deployment would be
* finalized earlier than expected.
*/
int sysroot_fd = ostree_sysroot_get_fd (sysroot);
glnx_autofd int boot_fd = -1;
g_debug ("Opening /boot directory");
if (!glnx_opendirat (sysroot_fd, "boot", TRUE, &boot_fd, error))
return FALSE;
/* We want to keep /boot open until the deployment is finalized during
* system shutdown, so block until we get SIGTERM which systemd will send
* when the unit is stopped.
*/
pause ();
}
else
{
/* Load the sysroot with the normal flags and actually finalize the
* deployment. */
if (!ostree_admin_sysroot_load (sysroot,
OSTREE_ADMIN_BUILTIN_FLAG_SUPERUSER,
cancellable, error))
return FALSE;
if (!ostree_cmd__private__()->ostree_finalize_staged (sysroot, cancellable, error))
return FALSE;
}
return TRUE;
}
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