Tom Gundersen
505f8da732
This essentially swaps the roles of rtnl and udev in networkd. After this change libudev is only used for waiting for udev to initialize devices and to get udev-specific information needed for some [Match] attributes. This in particular simplifies the code in containers where udev is not really useful, but also simplifies things and reduces round-trips in the non-container case.
120 lines
3.5 KiB
C
120 lines
3.5 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright 2013 Tom Gundersen <teg@jklm.no>
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include "sd-event.h"
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#include "sd-daemon.h"
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#include "networkd.h"
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int main(int argc, char *argv[]) {
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_cleanup_manager_free_ Manager *m = NULL;
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int r;
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log_set_target(LOG_TARGET_AUTO);
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log_parse_environment();
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log_open();
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umask(0022);
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if (argc != 1) {
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log_error("This program takes no arguments.");
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r = -EINVAL;
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goto out;
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}
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/* Always create the directories people can create inotify
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* watches in. */
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r = mkdir_label("/run/systemd/network", 0755);
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if (r < 0)
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log_error("Could not create runtime directory: %s",
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strerror(-r));
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r = mkdir_label("/run/systemd/network/links", 0755);
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if (r < 0)
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log_error("Could not create runtime directory 'links': %s",
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strerror(-r));
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r = mkdir_label("/run/systemd/network/leases", 0755);
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if (r < 0)
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log_error("Could not create runtime directory 'leases': %s",
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strerror(-r));
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r = manager_new(&m);
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if (r < 0) {
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log_error("Could not create manager: %s", strerror(-r));
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goto out;
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}
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r = manager_udev_listen(m);
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if (r < 0) {
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log_error("Could not connect to udev: %s", strerror(-r));
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goto out;
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}
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r = manager_rtnl_listen(m);
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if (r < 0) {
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log_error("Could not connect to rtnl: %s", strerror(-r));
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goto out;
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}
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r = manager_bus_listen(m);
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if (r < 0) {
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log_error("Could not connect to system bus: %s", strerror(-r));
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goto out;
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}
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r = manager_load_config(m);
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if (r < 0) {
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log_error("Could not load configuration files: %s", strerror(-r));
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goto out;
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}
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r = manager_rtnl_enumerate_links(m);
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if (r < 0) {
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log_error("Could not enumerate links: %s", strerror(-r));
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goto out;
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}
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/* write out empty resolv.conf to avoid a
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* dangling symlink */
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r = manager_update_resolv_conf(m);
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if (r < 0) {
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log_error("Could not create resolv.conf: %s", strerror(-r));
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goto out;
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}
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sd_notify(false,
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"READY=1\n"
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"STATUS=Processing requests...");
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r = sd_event_loop(m->event);
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if (r < 0) {
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log_error("Event loop failed: %s", strerror(-r));
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goto out;
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}
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out:
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sd_notify(false,
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"STATUS=Shutting down...");
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return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
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}
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