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52ad194e | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
60f067b4 JS |
2 | |
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2013 Tom Gundersen <teg@jklm.no> | |
7 | ||
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. | |
12 | ||
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. | |
17 | ||
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/>. | |
20 | ***/ | |
21 | ||
60f067b4 JS |
22 | #include <getopt.h> |
23 | ||
60f067b4 | 24 | #include "sd-daemon.h" |
6300502b | 25 | |
2897b343 | 26 | #include "manager.h" |
6300502b MP |
27 | #include "signal-util.h" |
28 | #include "strv.h" | |
60f067b4 JS |
29 | |
30 | static bool arg_quiet = false; | |
e735f4d4 | 31 | static usec_t arg_timeout = 120 * USEC_PER_SEC; |
60f067b4 | 32 | static char **arg_interfaces = NULL; |
e735f4d4 | 33 | static char **arg_ignore = NULL; |
60f067b4 | 34 | |
5eef597e | 35 | static void help(void) { |
60f067b4 JS |
36 | printf("%s [OPTIONS...]\n\n" |
37 | "Block until network is configured.\n\n" | |
38 | " -h --help Show this help\n" | |
39 | " --version Print version string\n" | |
40 | " -q --quiet Do not show status information\n" | |
5eef597e | 41 | " -i --interface=INTERFACE Block until at least these interfaces have appeared\n" |
e735f4d4 MP |
42 | " --ignore=INTERFACE Don't take these interfaces into account\n" |
43 | " --timeout=SECS Maximum time to wait for network connectivity\n" | |
5eef597e | 44 | , program_invocation_short_name); |
60f067b4 JS |
45 | } |
46 | ||
47 | static int parse_argv(int argc, char *argv[]) { | |
48 | ||
49 | enum { | |
50 | ARG_VERSION = 0x100, | |
e735f4d4 MP |
51 | ARG_IGNORE, |
52 | ARG_TIMEOUT, | |
60f067b4 JS |
53 | }; |
54 | ||
55 | static const struct option options[] = { | |
56 | { "help", no_argument, NULL, 'h' }, | |
57 | { "version", no_argument, NULL, ARG_VERSION }, | |
58 | { "quiet", no_argument, NULL, 'q' }, | |
59 | { "interface", required_argument, NULL, 'i' }, | |
e735f4d4 MP |
60 | { "ignore", required_argument, NULL, ARG_IGNORE }, |
61 | { "timeout", required_argument, NULL, ARG_TIMEOUT }, | |
60f067b4 JS |
62 | {} |
63 | }; | |
64 | ||
e735f4d4 | 65 | int c, r; |
60f067b4 JS |
66 | |
67 | assert(argc >= 0); | |
68 | assert(argv); | |
69 | ||
7035cd9e | 70 | while ((c = getopt_long(argc, argv, "+hi:q", options, NULL)) >= 0) |
60f067b4 JS |
71 | |
72 | switch (c) { | |
73 | ||
74 | case 'h': | |
5eef597e MP |
75 | help(); |
76 | return 0; | |
60f067b4 JS |
77 | |
78 | case 'q': | |
79 | arg_quiet = true; | |
80 | break; | |
81 | ||
82 | case ARG_VERSION: | |
6300502b | 83 | return version(); |
60f067b4 JS |
84 | |
85 | case 'i': | |
86 | if (strv_extend(&arg_interfaces, optarg) < 0) | |
87 | return log_oom(); | |
88 | ||
89 | break; | |
90 | ||
e735f4d4 MP |
91 | case ARG_IGNORE: |
92 | if (strv_extend(&arg_ignore, optarg) < 0) | |
93 | return log_oom(); | |
94 | ||
95 | break; | |
96 | ||
97 | case ARG_TIMEOUT: | |
98 | r = parse_sec(optarg, &arg_timeout); | |
99 | if (r < 0) | |
100 | return r; | |
101 | ||
102 | break; | |
103 | ||
60f067b4 JS |
104 | case '?': |
105 | return -EINVAL; | |
106 | ||
107 | default: | |
108 | assert_not_reached("Unhandled option"); | |
109 | } | |
60f067b4 JS |
110 | |
111 | return 1; | |
112 | } | |
113 | ||
60f067b4 | 114 | int main(int argc, char *argv[]) { |
5eef597e MP |
115 | _cleanup_(manager_freep) Manager *m = NULL; |
116 | int r; | |
60f067b4 | 117 | |
5eef597e | 118 | log_set_target(LOG_TARGET_AUTO); |
60f067b4 JS |
119 | log_parse_environment(); |
120 | log_open(); | |
121 | ||
5eef597e MP |
122 | umask(0022); |
123 | ||
60f067b4 JS |
124 | r = parse_argv(argc, argv); |
125 | if (r <= 0) | |
126 | return r; | |
127 | ||
128 | if (arg_quiet) | |
129 | log_set_max_level(LOG_WARNING); | |
130 | ||
86f210e9 | 131 | assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGTERM, SIGINT, -1) >= 0); |
60f067b4 | 132 | |
e735f4d4 | 133 | r = manager_new(&m, arg_interfaces, arg_ignore, arg_timeout); |
60f067b4 | 134 | if (r < 0) { |
f47781d8 | 135 | log_error_errno(r, "Could not create manager: %m"); |
5eef597e | 136 | goto finish; |
60f067b4 JS |
137 | } |
138 | ||
5eef597e | 139 | if (manager_all_configured(m)) { |
60f067b4 | 140 | r = 0; |
5eef597e | 141 | goto finish; |
60f067b4 JS |
142 | } |
143 | ||
144 | sd_notify(false, | |
145 | "READY=1\n" | |
146 | "STATUS=Waiting for network connections..."); | |
147 | ||
148 | r = sd_event_loop(m->event); | |
149 | if (r < 0) { | |
f47781d8 | 150 | log_error_errno(r, "Event loop failed: %m"); |
5eef597e | 151 | goto finish; |
60f067b4 JS |
152 | } |
153 | ||
5eef597e | 154 | finish: |
e735f4d4 MP |
155 | strv_free(arg_interfaces); |
156 | strv_free(arg_ignore); | |
157 | ||
158 | if (r >= 0) { | |
159 | sd_notify(false, "STATUS=All interfaces configured..."); | |
60f067b4 | 160 | |
e735f4d4 MP |
161 | return EXIT_SUCCESS; |
162 | } else { | |
163 | sd_notify(false, "STATUS=Failed waiting for network connectivity..."); | |
164 | ||
165 | return EXIT_FAILURE; | |
166 | } | |
60f067b4 | 167 | } |