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490aed58 LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2010 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
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 | |
490aed58 LP |
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 | |
5430f7f2 | 16 | Lesser General Public License for more details. |
490aed58 | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
490aed58 LP |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
490aed58 | 22 | #include <errno.h> |
490aed58 | 23 | #include <getopt.h> |
0e098b15 | 24 | #include <stddef.h> |
00843602 | 25 | #include <unistd.h> |
490aed58 | 26 | |
00843602 LP |
27 | #include "ask-password-api.h" |
28 | #include "def.h" | |
490aed58 LP |
29 | #include "log.h" |
30 | #include "macro.h" | |
21bc923a | 31 | #include "strv.h" |
490aed58 LP |
32 | |
33 | static const char *arg_icon = NULL; | |
9fa1de96 | 34 | static const char *arg_id = NULL; |
490aed58 | 35 | static const char *arg_message = NULL; |
64845bdc | 36 | static bool arg_echo = false; |
1b39d4b9 | 37 | static bool arg_use_tty = true; |
7f434cf4 | 38 | static usec_t arg_timeout = DEFAULT_TIMEOUT_USEC; |
21bc923a LP |
39 | static bool arg_accept_cached = false; |
40 | static bool arg_multiple = false; | |
490aed58 | 41 | |
601185b4 | 42 | static void help(void) { |
490aed58 | 43 | printf("%s [OPTIONS...] MESSAGE\n\n" |
ad6ab0af | 44 | "Query the user for a system passphrase, via the TTY or an UI agent.\n\n" |
21bc923a LP |
45 | " -h --help Show this help\n" |
46 | " --icon=NAME Icon name\n" | |
47 | " --timeout=SEC Timeout in sec\n" | |
64845bdc | 48 | " --echo Do not mask input (useful for usernames)\n" |
21bc923a LP |
49 | " --no-tty Ask question via agent even on TTY\n" |
50 | " --accept-cached Accept cached passwords\n" | |
9fa1de96 | 51 | " --multiple List multiple passwords if available\n" |
601185b4 ZJS |
52 | " --id=ID Query identifier (e.g. cryptsetup:/dev/sda5)\n" |
53 | , program_invocation_short_name); | |
490aed58 LP |
54 | } |
55 | ||
56 | static int parse_argv(int argc, char *argv[]) { | |
57 | ||
58 | enum { | |
59 | ARG_ICON = 0x100, | |
1b39d4b9 | 60 | ARG_TIMEOUT, |
64845bdc | 61 | ARG_ECHO, |
21bc923a LP |
62 | ARG_NO_TTY, |
63 | ARG_ACCEPT_CACHED, | |
9fa1de96 DH |
64 | ARG_MULTIPLE, |
65 | ARG_ID | |
490aed58 LP |
66 | }; |
67 | ||
68 | static const struct option options[] = { | |
21bc923a LP |
69 | { "help", no_argument, NULL, 'h' }, |
70 | { "icon", required_argument, NULL, ARG_ICON }, | |
71 | { "timeout", required_argument, NULL, ARG_TIMEOUT }, | |
64845bdc | 72 | { "echo", no_argument, NULL, ARG_ECHO }, |
21bc923a LP |
73 | { "no-tty", no_argument, NULL, ARG_NO_TTY }, |
74 | { "accept-cached", no_argument, NULL, ARG_ACCEPT_CACHED }, | |
75 | { "multiple", no_argument, NULL, ARG_MULTIPLE }, | |
9fa1de96 | 76 | { "id", required_argument, NULL, ARG_ID }, |
eb9da376 | 77 | {} |
490aed58 LP |
78 | }; |
79 | ||
80 | int c; | |
81 | ||
82 | assert(argc >= 0); | |
83 | assert(argv); | |
84 | ||
601185b4 | 85 | while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) |
490aed58 LP |
86 | |
87 | switch (c) { | |
88 | ||
89 | case 'h': | |
601185b4 ZJS |
90 | help(); |
91 | return 0; | |
490aed58 LP |
92 | |
93 | case ARG_ICON: | |
94 | arg_icon = optarg; | |
95 | break; | |
96 | ||
97 | case ARG_TIMEOUT: | |
7f602784 | 98 | if (parse_sec(optarg, &arg_timeout) < 0) { |
490aed58 LP |
99 | log_error("Failed to parse --timeout parameter %s", optarg); |
100 | return -EINVAL; | |
101 | } | |
102 | break; | |
103 | ||
64845bdc DS |
104 | case ARG_ECHO: |
105 | arg_echo = true; | |
106 | break; | |
107 | ||
1b39d4b9 LP |
108 | case ARG_NO_TTY: |
109 | arg_use_tty = false; | |
110 | break; | |
111 | ||
21bc923a LP |
112 | case ARG_ACCEPT_CACHED: |
113 | arg_accept_cached = true; | |
114 | break; | |
115 | ||
116 | case ARG_MULTIPLE: | |
117 | arg_multiple = true; | |
118 | break; | |
119 | ||
9fa1de96 DH |
120 | case ARG_ID: |
121 | arg_id = optarg; | |
122 | break; | |
123 | ||
490aed58 LP |
124 | case '?': |
125 | return -EINVAL; | |
126 | ||
127 | default: | |
eb9da376 | 128 | assert_not_reached("Unhandled option"); |
490aed58 | 129 | } |
490aed58 | 130 | |
601185b4 ZJS |
131 | if (optind != argc - 1) { |
132 | log_error("%s: required argument missing.", program_invocation_short_name); | |
490aed58 LP |
133 | return -EINVAL; |
134 | } | |
135 | ||
136 | arg_message = argv[optind]; | |
1b39d4b9 | 137 | return 1; |
490aed58 LP |
138 | } |
139 | ||
1b39d4b9 LP |
140 | int main(int argc, char *argv[]) { |
141 | int r; | |
7dcda352 | 142 | usec_t timeout; |
1b39d4b9 LP |
143 | |
144 | log_parse_environment(); | |
145 | log_open(); | |
146 | ||
601185b4 ZJS |
147 | r = parse_argv(argc, argv); |
148 | if (r <= 0) | |
1b39d4b9 LP |
149 | goto finish; |
150 | ||
7dcda352 LP |
151 | if (arg_timeout > 0) |
152 | timeout = now(CLOCK_MONOTONIC) + arg_timeout; | |
153 | else | |
154 | timeout = 0; | |
155 | ||
21bc923a | 156 | if (arg_use_tty && isatty(STDIN_FILENO)) { |
00843602 | 157 | _cleanup_free_ char *password = NULL; |
21bc923a | 158 | |
00843602 LP |
159 | r = ask_password_tty(arg_message, timeout, arg_echo, NULL, &password); |
160 | if (r < 0) { | |
161 | log_error_errno(r, "Failed to ask for password on terminal: %m"); | |
162 | goto finish; | |
21bc923a LP |
163 | } |
164 | ||
00843602 | 165 | puts(password); |
21bc923a | 166 | } else { |
00843602 LP |
167 | _cleanup_free_ char **l = NULL; |
168 | char **p; | |
21bc923a | 169 | |
00843602 LP |
170 | r = ask_password_agent(arg_message, arg_icon, arg_id, timeout, arg_echo, arg_accept_cached, &l); |
171 | if (r < 0) { | |
172 | log_error_errno(r, "Failed to ask for password via agent: %m"); | |
173 | goto finish; | |
174 | } | |
21bc923a | 175 | |
00843602 LP |
176 | STRV_FOREACH(p, l) { |
177 | puts(*p); | |
ec863ba6 | 178 | |
00843602 LP |
179 | if (!arg_multiple) |
180 | break; | |
21bc923a | 181 | } |
7f4e0805 | 182 | } |
1b39d4b9 LP |
183 | |
184 | finish: | |
185 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; | |
186 | } |