From ce31ec116f9bf4ad45952b6a200f4181fac311a3 Mon Sep 17 00:00:00 2001 From: Luke Shumaker Date: Tue, 13 Sep 2016 21:24:07 -0400 Subject: ./tools/notsd-move --- src/systemd-system-update-generator/Makefile | 33 ++++++++++ .../system-update-generator.c | 73 +++++++++++++++++++++ .../systemd-system-update-generator.xml | 75 ++++++++++++++++++++++ 3 files changed, 181 insertions(+) create mode 100644 src/systemd-system-update-generator/Makefile create mode 100644 src/systemd-system-update-generator/system-update-generator.c create mode 100644 src/systemd-system-update-generator/systemd-system-update-generator.xml (limited to 'src/systemd-system-update-generator') diff --git a/src/systemd-system-update-generator/Makefile b/src/systemd-system-update-generator/Makefile new file mode 100644 index 0000000000..5e66309753 --- /dev/null +++ b/src/systemd-system-update-generator/Makefile @@ -0,0 +1,33 @@ +# -*- Mode: makefile; indent-tabs-mode: t -*- +# +# This file is part of systemd. +# +# Copyright 2010-2012 Lennart Poettering +# Copyright 2010-2012 Kay Sievers +# Copyright 2013 Zbigniew Jędrzejewski-Szmek +# Copyright 2013 David Strauss +# Copyright 2016 Luke Shumaker +# +# systemd 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 2.1 of the License, or +# (at your option) any later version. +# +# systemd 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 systemd; If not, see . +include $(dir $(lastword $(MAKEFILE_LIST)))/../../config.mk +include $(topsrcdir)/build-aux/Makefile.head.mk + +systemgenerator_PROGRAMS += systemd-system-update-generator +systemd_system_update_generator_SOURCES = \ + src/system-update-generator/system-update-generator.c + +systemd_system_update_generator_LDADD = \ + libsystemd-shared.la + +include $(topsrcdir)/build-aux/Makefile.tail.mk diff --git a/src/systemd-system-update-generator/system-update-generator.c b/src/systemd-system-update-generator/system-update-generator.c new file mode 100644 index 0000000000..e95ab39bb5 --- /dev/null +++ b/src/systemd-system-update-generator/system-update-generator.c @@ -0,0 +1,73 @@ +/*** + This file is part of systemd. + + Copyright 2012 Lennart Poettering + + systemd 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 2.1 of the License, or + (at your option) any later version. + + systemd 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 systemd; If not, see . +***/ + +#include +#include + +#include "basic/fs-util.h" +#include "basic/log.h" +#include "basic/string-util.h" +#include "basic/util.h" + +/* + * Implements the logic described in + * http://freedesktop.org/wiki/Software/systemd/SystemUpdates + */ + +static const char *arg_dest = "/tmp"; + +static int generate_symlink(void) { + const char *p = NULL; + + if (laccess("/system-update", F_OK) < 0) { + if (errno == ENOENT) + return 0; + + log_error_errno(errno, "Failed to check for system update: %m"); + return -EINVAL; + } + + p = strjoina(arg_dest, "/default.target"); + if (symlink(SYSTEM_DATA_UNIT_PATH "/system-update.target", p) < 0) + return log_error_errno(errno, "Failed to create symlink %s: %m", p); + + return 0; +} + +int main(int argc, char *argv[]) { + int r; + + if (argc > 1 && argc != 4) { + log_error("This program takes three or no arguments."); + return EXIT_FAILURE; + } + + if (argc > 1) + arg_dest = argv[2]; + + log_set_target(LOG_TARGET_SAFE); + log_parse_environment(); + log_open(); + + umask(0022); + + r = generate_symlink(); + + return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; +} diff --git a/src/systemd-system-update-generator/systemd-system-update-generator.xml b/src/systemd-system-update-generator/systemd-system-update-generator.xml new file mode 100644 index 0000000000..833ed79646 --- /dev/null +++ b/src/systemd-system-update-generator/systemd-system-update-generator.xml @@ -0,0 +1,75 @@ + + + + + + + + systemd-system-update-generator + systemd + + + + Developer + Lennart + Poettering + lennart@poettering.net + + + + + + systemd-system-update-generator + 8 + + + + systemd-system-update-generator + Generator for redirecting boot to offline update mode + + + + /usr/lib/systemd/system-generators/systemd-system-update-generator + + + + Description + + systemd-system-update-generator is a + generator that automatically redirects the boot process to + system-update.target, if + /system-update exists. This is required to + implement the logic explained in the + systemd.offline-updates7. + + + systemd-system-update-generator implements + systemd.generator7. + + + + See Also + + systemd1, + systemd.special7 + + + + -- cgit v1.2.3-54-g00ecf