src/network/networkd.c

	networkd.c revision 85b5673b337048fa881a5afb1d00d1a7b95950fb
e2b696ee9bffad34daaafc99d3a5d8ee13504288Lennart Poettering/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
e2b696ee9bffad34daaafc99d3a5d8ee13504288Lennart Poettering
12b42c76672a66c2d4ea7212c14f8f1b5a62b78dTom Gundersen/***
e2b696ee9bffad34daaafc99d3a5d8ee13504288Lennart Poettering  This file is part of systemd.
e2b696ee9bffad34daaafc99d3a5d8ee13504288Lennart Poettering
e2b696ee9bffad34daaafc99d3a5d8ee13504288Lennart Poettering  Copyright 2013 Tom Gundersen <teg@jklm.no>
e2b696ee9bffad34daaafc99d3a5d8ee13504288Lennart Poettering
e2b696ee9bffad34daaafc99d3a5d8ee13504288Lennart Poettering  systemd is free software; you can redistribute it and/or modify it
19adb8a3204fefd91411b5f0f350c8bc6bcf75feZbigniew Jędrzejewski-Szmek  under the terms of the GNU Lesser General Public License as published by
e2b696ee9bffad34daaafc99d3a5d8ee13504288Lennart Poettering  the Free Software Foundation; either version 2.1 of the License, or
e2b696ee9bffad34daaafc99d3a5d8ee13504288Lennart Poettering  (at your option) any later version.
e2b696ee9bffad34daaafc99d3a5d8ee13504288Lennart Poettering
e2b696ee9bffad34daaafc99d3a5d8ee13504288Lennart Poettering  systemd is distributed in the hope that it will be useful, but
e2b696ee9bffad34daaafc99d3a5d8ee13504288Lennart Poettering  WITHOUT ANY WARRANTY; without even the implied warranty of
e2b696ee9bffad34daaafc99d3a5d8ee13504288Lennart Poettering  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
e2b696ee9bffad34daaafc99d3a5d8ee13504288Lennart Poettering  Lesser General Public License for more details.
e2b696ee9bffad34daaafc99d3a5d8ee13504288Lennart Poettering
e2b696ee9bffad34daaafc99d3a5d8ee13504288Lennart Poettering  You should have received a copy of the GNU Lesser General Public License
e2b696ee9bffad34daaafc99d3a5d8ee13504288Lennart Poettering  along with systemd; If not, see <http://www.gnu.org/licenses/>.
e2b696ee9bffad34daaafc99d3a5d8ee13504288Lennart Poettering***/
e2b696ee9bffad34daaafc99d3a5d8ee13504288Lennart Poettering
e2b696ee9bffad34daaafc99d3a5d8ee13504288Lennart Poettering#include "capability.h"
e2b696ee9bffad34daaafc99d3a5d8ee13504288Lennart Poettering#include "sd-event.h"
e2b696ee9bffad34daaafc99d3a5d8ee13504288Lennart Poettering#include "sd-daemon.h"
dfdebb1b925332352966804303b2516a6506a429Zbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek#include "networkd.h"
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmekint main(int argc, char *argv[]) {
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        _cleanup_manager_free_ Manager *m = NULL;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        const char *user = "systemd-network";
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        uid_t uid;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        gid_t gid;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        int r;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        log_set_target(LOG_TARGET_AUTO);
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        log_parse_environment();
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        log_open();
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        umask(0022);
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        if (argc != 1) {
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                log_error("This program takes no arguments.");
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                r = -EINVAL;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                goto out;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        }
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        r = get_user_creds(&user, &uid, &gid, NULL, NULL);
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        if (r < 0) {
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                log_error("Cannot resolve user name %s: %s", user, strerror(-r));
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                goto out;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        }
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        /* Always create the directories people can create inotify
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek         * watches in. */
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        r = mkdir_safe_label("/run/systemd/netif", 0755, uid, gid);
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        if (r < 0)
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                log_error("Could not create runtime directory: %s",
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                          strerror(-r));
12b42c76672a66c2d4ea7212c14f8f1b5a62b78dTom Gundersen
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        r = mkdir_safe_label("/run/systemd/netif/links", 0755, uid, gid);
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        if (r < 0)
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                log_error("Could not create runtime directory 'links': %s",
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                          strerror(-r));
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        r = mkdir_safe_label("/run/systemd/netif/leases", 0755, uid, gid);
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        if (r < 0)
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                log_error("Could not create runtime directory 'leases': %s",
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                          strerror(-r));
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        r = drop_privileges(uid, gid,
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                            (1ULL << CAP_NET_ADMIN) |
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                            (1ULL << CAP_NET_BIND_SERVICE) |
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                            (1ULL << CAP_NET_BROADCAST) |
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                            (1ULL << CAP_NET_RAW));
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        if (r < 0)
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                goto out;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
12b42c76672a66c2d4ea7212c14f8f1b5a62b78dTom Gundersen        r = manager_new(&m);
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        if (r < 0) {
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                log_error("Could not create manager: %s", strerror(-r));
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                goto out;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        }
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        r = manager_udev_listen(m);
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        if (r < 0) {
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                log_error("Could not connect to udev: %s", strerror(-r));
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                goto out;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        }
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
12b42c76672a66c2d4ea7212c14f8f1b5a62b78dTom Gundersen        r = manager_rtnl_listen(m);
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        if (r < 0) {
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                log_error("Could not connect to rtnl: %s", strerror(-r));
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                goto out;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        }
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        r = manager_bus_listen(m);
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        if (r < 0) {
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                log_error("Could not connect to system bus: %s", strerror(-r));
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                goto out;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        }
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        r = manager_load_config(m);
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        if (r < 0) {
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                log_error("Could not load configuration files: %s", strerror(-r));
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                goto out;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        }
12b42c76672a66c2d4ea7212c14f8f1b5a62b78dTom Gundersen
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        r = manager_rtnl_enumerate_links(m);
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        if (r < 0) {
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                log_error("Could not enumerate links: %s", strerror(-r));
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                goto out;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        }
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        sd_notify(false,
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                  "READY=1\n"
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                  "STATUS=Processing requests...");
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        r = sd_event_loop(m->event);
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        if (r < 0) {
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                log_error("Event loop failed: %s", strerror(-r));
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                goto out;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        }
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmekout:
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        sd_notify(false,
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek                  "STATUS=Shutting down...");
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek        return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek}
798d3a524ea57aaf40cb53858aaa45ec702f012dZbigniew Jędrzejewski-Szmek