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Commit | Line | Data |
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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
f579559b TG |
2 | /*** |
3 | This file is part of systemd. | |
4 | ||
5 | Copyright 2013 Tom Gundersen <teg@jklm.no> | |
6 | ||
7 | systemd is free software; you can redistribute it and/or modify it | |
8 | under the terms of the GNU Lesser General Public License as published by | |
9 | the Free Software Foundation; either version 2.1 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | systemd is distributed in the hope that it will be useful, but | |
13 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | Lesser General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU Lesser General Public License | |
18 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
19 | ***/ | |
20 | ||
a553fd32 | 21 | #include "sd-daemon.h" |
b76d99d9 | 22 | #include "sd-event.h" |
b1d4f8e1 | 23 | |
430f0182 | 24 | #include "capability-util.h" |
413708d1 | 25 | #include "networkd-conf.h" |
23f53b99 | 26 | #include "networkd-manager.h" |
b1d4f8e1 LP |
27 | #include "signal-util.h" |
28 | #include "user-util.h" | |
f579559b TG |
29 | |
30 | int main(int argc, char *argv[]) { | |
b76d99d9 | 31 | sd_event *event = NULL; |
e877666c | 32 | _cleanup_manager_free_ Manager *m = NULL; |
d3cf48f4 LP |
33 | const char *user = "systemd-network"; |
34 | uid_t uid; | |
35 | gid_t gid; | |
f579559b TG |
36 | int r; |
37 | ||
38 | log_set_target(LOG_TARGET_AUTO); | |
39 | log_parse_environment(); | |
40 | log_open(); | |
41 | ||
42 | umask(0022); | |
43 | ||
44 | if (argc != 1) { | |
45 | log_error("This program takes no arguments."); | |
4b6141c4 TG |
46 | r = -EINVAL; |
47 | goto out; | |
f579559b TG |
48 | } |
49 | ||
d3cf48f4 LP |
50 | r = get_user_creds(&user, &uid, &gid, NULL, NULL); |
51 | if (r < 0) { | |
da927ba9 | 52 | log_error_errno(r, "Cannot resolve user name %s: %m", user); |
d3cf48f4 LP |
53 | goto out; |
54 | } | |
55 | ||
fe8db0c5 TG |
56 | /* Always create the directories people can create inotify |
57 | * watches in. */ | |
c31ad024 | 58 | r = mkdir_safe_label("/run/systemd/netif", 0755, uid, gid, false); |
0ea51a11 | 59 | if (r < 0) |
8bde1d0c | 60 | log_warning_errno(r, "Could not create runtime directory: %m"); |
0ea51a11 | 61 | |
c31ad024 | 62 | r = mkdir_safe_label("/run/systemd/netif/links", 0755, uid, gid, false); |
0ea51a11 | 63 | if (r < 0) |
8bde1d0c | 64 | log_warning_errno(r, "Could not create runtime directory 'links': %m"); |
0ea51a11 | 65 | |
c31ad024 | 66 | r = mkdir_safe_label("/run/systemd/netif/leases", 0755, uid, gid, false); |
0ea51a11 | 67 | if (r < 0) |
8bde1d0c | 68 | log_warning_errno(r, "Could not create runtime directory 'leases': %m"); |
fe8db0c5 | 69 | |
c31ad024 | 70 | r = mkdir_safe_label("/run/systemd/netif/lldp", 0755, uid, gid, false); |
49699bac | 71 | if (r < 0) |
8bde1d0c | 72 | log_warning_errno(r, "Could not create runtime directory 'lldp': %m"); |
49699bac | 73 | |
c61f302d YW |
74 | /* Drop privileges, but only if we have been started as root. If we are not running as root we assume all |
75 | * privileges are already dropped. */ | |
76 | if (geteuid() == 0) { | |
77 | r = drop_privileges(uid, gid, | |
78 | (1ULL << CAP_NET_ADMIN) | | |
79 | (1ULL << CAP_NET_BIND_SERVICE) | | |
80 | (1ULL << CAP_NET_BROADCAST) | | |
81 | (1ULL << CAP_NET_RAW)); | |
82 | if (r < 0) | |
83 | goto out; | |
84 | } | |
d3cf48f4 | 85 | |
72c0a2c2 | 86 | assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGTERM, SIGINT, -1) >= 0); |
186fe1db | 87 | |
b76d99d9 TG |
88 | r = sd_event_default(&event); |
89 | if (r < 0) | |
90 | goto out; | |
91 | ||
92 | sd_event_set_watchdog(event, true); | |
93 | sd_event_add_signal(event, NULL, SIGTERM, NULL, NULL); | |
94 | sd_event_add_signal(event, NULL, SIGINT, NULL, NULL); | |
95 | ||
96 | r = manager_new(&m, event); | |
1f6d9bc9 | 97 | if (r < 0) { |
da927ba9 | 98 | log_error_errno(r, "Could not create manager: %m"); |
8f203c16 TG |
99 | goto out; |
100 | } | |
101 | ||
102 | r = manager_connect_bus(m); | |
103 | if (r < 0) { | |
104 | log_error_errno(r, "Could not connect to bus: %m"); | |
4b6141c4 | 105 | goto out; |
1f6d9bc9 | 106 | } |
f579559b | 107 | |
413708d1 VK |
108 | r = manager_parse_config_file(m); |
109 | if (r < 0) | |
110 | log_warning_errno(r, "Failed to parse configuration file: %m"); | |
111 | ||
f0c4cd7a | 112 | r = manager_load_config(m); |
1f6d9bc9 | 113 | if (r < 0) { |
da927ba9 | 114 | log_error_errno(r, "Could not load configuration files: %m"); |
4b6141c4 | 115 | goto out; |
1f6d9bc9 | 116 | } |
3bef724f | 117 | |
505f8da7 | 118 | r = manager_rtnl_enumerate_links(m); |
1346b1f0 | 119 | if (r < 0) { |
da927ba9 | 120 | log_error_errno(r, "Could not enumerate links: %m"); |
1346b1f0 TG |
121 | goto out; |
122 | } | |
123 | ||
45af44d4 TG |
124 | r = manager_rtnl_enumerate_addresses(m); |
125 | if (r < 0) { | |
2ee5363b | 126 | log_error_errno(r, "Could not enumerate addresses: %m"); |
45af44d4 TG |
127 | goto out; |
128 | } | |
129 | ||
1c8e710c TG |
130 | r = manager_rtnl_enumerate_routes(m); |
131 | if (r < 0) { | |
132 | log_error_errno(r, "Could not enumerate routes: %m"); | |
133 | goto out; | |
134 | } | |
135 | ||
bce67bbe SS |
136 | r = manager_rtnl_enumerate_rules(m); |
137 | if (r < 0) { | |
138 | log_error_errno(r, "Could not enumerate rules: %m"); | |
139 | goto out; | |
140 | } | |
141 | ||
b76d99d9 TG |
142 | r = manager_start(m); |
143 | if (r < 0) { | |
144 | log_error_errno(r, "Could not start manager: %m"); | |
145 | goto out; | |
146 | } | |
147 | ||
73432d67 TG |
148 | log_info("Enumeration completed"); |
149 | ||
4b6141c4 TG |
150 | sd_notify(false, |
151 | "READY=1\n" | |
152 | "STATUS=Processing requests..."); | |
f882c247 | 153 | |
b76d99d9 | 154 | r = sd_event_loop(event); |
1f6d9bc9 | 155 | if (r < 0) { |
da927ba9 | 156 | log_error_errno(r, "Event loop failed: %m"); |
4b6141c4 | 157 | goto out; |
1f6d9bc9 | 158 | } |
4b6141c4 TG |
159 | out: |
160 | sd_notify(false, | |
af4ec430 | 161 | "STOPPING=1\n" |
4b6141c4 | 162 | "STATUS=Shutting down..."); |
f579559b | 163 | |
b76d99d9 TG |
164 | sd_event_unref(event); |
165 | ||
4b6141c4 | 166 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; |
f579559b | 167 | } |