1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2013 Tom Gundersen <teg@jklm.no>
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
22 #include "capability.h"
24 #include "sd-daemon.h"
28 int main(int argc, char *argv[]) {
29 _cleanup_manager_free_ Manager *m = NULL;
30 const char *user = "systemd-network";
35 log_set_target(LOG_TARGET_AUTO);
36 log_parse_environment();
42 log_error("This program takes no arguments.");
47 r = get_user_creds(&user, &uid, &gid, NULL, NULL);
49 log_error("Cannot resolve user name %s: %s", user, strerror(-r));
53 /* Always create the directories people can create inotify
55 r = mkdir_safe_label("/run/systemd/netif", 0755, uid, gid);
57 log_error("Could not create runtime directory: %s",
60 r = mkdir_safe_label("/run/systemd/netif/links", 0755, uid, gid);
62 log_error("Could not create runtime directory 'links': %s",
65 r = mkdir_safe_label("/run/systemd/netif/leases", 0755, uid, gid);
67 log_error("Could not create runtime directory 'leases': %s",
70 r = drop_privileges(uid, gid,
71 (1ULL << CAP_NET_ADMIN) |
72 (1ULL << CAP_NET_BIND_SERVICE) |
73 (1ULL << CAP_NET_BROADCAST) |
74 (1ULL << CAP_NET_RAW));
78 assert_se(sigprocmask_many(SIG_BLOCK, SIGTERM, SIGINT, -1) == 0);
82 log_error("Could not create manager: %s", strerror(-r));
86 r = manager_udev_listen(m);
88 log_error("Could not connect to udev: %s", strerror(-r));
92 r = manager_rtnl_listen(m);
94 log_error("Could not connect to rtnl: %s", strerror(-r));
98 r = manager_bus_listen(m);
100 log_error("Could not connect to system bus: %s", strerror(-r));
104 r = manager_load_config(m);
106 log_error("Could not load configuration files: %s", strerror(-r));
110 r = manager_rtnl_enumerate_links(m);
112 log_error("Could not enumerate links: %s", strerror(-r));
118 "STATUS=Processing requests...");
120 r = sd_event_loop(m->event);
122 log_error("Event loop failed: %s", strerror(-r));
129 "STATUS=Shutting down...");
131 return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;