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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; |
e287086b LP |
35 | static const char *arg_keyname = NULL; |
36 | static char *arg_message = NULL; | |
7f434cf4 | 37 | static usec_t arg_timeout = DEFAULT_TIMEOUT_USEC; |
21bc923a | 38 | static bool arg_multiple = false; |
e287086b | 39 | static AskPasswordFlags arg_flags = ASK_PASSWORD_PUSH_CACHE; |
490aed58 | 40 | |
601185b4 | 41 | static void help(void) { |
490aed58 | 42 | printf("%s [OPTIONS...] MESSAGE\n\n" |
ad6ab0af | 43 | "Query the user for a system passphrase, via the TTY or an UI agent.\n\n" |
e287086b LP |
44 | " -h --help Show this help\n" |
45 | " --icon=NAME Icon name\n" | |
46 | " --id=ID Query identifier (e.g. \"cryptsetup:/dev/sda5\")\n" | |
47 | " --keyname=NAME Kernel key name for caching passwords (e.g. \"cryptsetup\")\n" | |
48 | " --timeout=SEC Timeout in seconds\n" | |
49 | " --echo Do not mask input (useful for usernames)\n" | |
50 | " --no-tty Ask question via agent even on TTY\n" | |
51 | " --accept-cached Accept cached passwords\n" | |
52 | " --multiple List multiple passwords if available\n" | |
601185b4 | 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 | 64 | ARG_MULTIPLE, |
e287086b LP |
65 | ARG_ID, |
66 | ARG_KEYNAME, | |
490aed58 LP |
67 | }; |
68 | ||
69 | static const struct option options[] = { | |
21bc923a LP |
70 | { "help", no_argument, NULL, 'h' }, |
71 | { "icon", required_argument, NULL, ARG_ICON }, | |
72 | { "timeout", required_argument, NULL, ARG_TIMEOUT }, | |
64845bdc | 73 | { "echo", no_argument, NULL, ARG_ECHO }, |
21bc923a LP |
74 | { "no-tty", no_argument, NULL, ARG_NO_TTY }, |
75 | { "accept-cached", no_argument, NULL, ARG_ACCEPT_CACHED }, | |
76 | { "multiple", no_argument, NULL, ARG_MULTIPLE }, | |
9fa1de96 | 77 | { "id", required_argument, NULL, ARG_ID }, |
e287086b | 78 | { "keyname", required_argument, NULL, ARG_KEYNAME }, |
eb9da376 | 79 | {} |
490aed58 LP |
80 | }; |
81 | ||
82 | int c; | |
83 | ||
84 | assert(argc >= 0); | |
85 | assert(argv); | |
86 | ||
601185b4 | 87 | while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) |
490aed58 LP |
88 | |
89 | switch (c) { | |
90 | ||
91 | case 'h': | |
601185b4 ZJS |
92 | help(); |
93 | return 0; | |
490aed58 LP |
94 | |
95 | case ARG_ICON: | |
96 | arg_icon = optarg; | |
97 | break; | |
98 | ||
99 | case ARG_TIMEOUT: | |
7f602784 | 100 | if (parse_sec(optarg, &arg_timeout) < 0) { |
490aed58 LP |
101 | log_error("Failed to parse --timeout parameter %s", optarg); |
102 | return -EINVAL; | |
103 | } | |
104 | break; | |
105 | ||
64845bdc | 106 | case ARG_ECHO: |
e287086b | 107 | arg_flags |= ASK_PASSWORD_ECHO; |
64845bdc DS |
108 | break; |
109 | ||
1b39d4b9 | 110 | case ARG_NO_TTY: |
e287086b | 111 | arg_flags |= ASK_PASSWORD_NO_TTY; |
1b39d4b9 LP |
112 | break; |
113 | ||
21bc923a | 114 | case ARG_ACCEPT_CACHED: |
e287086b | 115 | arg_flags |= ASK_PASSWORD_ACCEPT_CACHED; |
21bc923a LP |
116 | break; |
117 | ||
118 | case ARG_MULTIPLE: | |
119 | arg_multiple = true; | |
120 | break; | |
121 | ||
9fa1de96 DH |
122 | case ARG_ID: |
123 | arg_id = optarg; | |
124 | break; | |
125 | ||
e287086b LP |
126 | case ARG_KEYNAME: |
127 | arg_keyname = optarg; | |
128 | break; | |
129 | ||
490aed58 LP |
130 | case '?': |
131 | return -EINVAL; | |
132 | ||
133 | default: | |
eb9da376 | 134 | assert_not_reached("Unhandled option"); |
490aed58 | 135 | } |
490aed58 | 136 | |
e287086b LP |
137 | if (argc > optind) { |
138 | arg_message = strv_join(argv + optind, " "); | |
139 | if (!arg_message) | |
140 | return log_oom(); | |
490aed58 LP |
141 | } |
142 | ||
1b39d4b9 | 143 | return 1; |
490aed58 LP |
144 | } |
145 | ||
1b39d4b9 | 146 | int main(int argc, char *argv[]) { |
ab84f5b9 | 147 | _cleanup_strv_free_erase_ char **l = NULL; |
7dcda352 | 148 | usec_t timeout; |
e287086b LP |
149 | char **p; |
150 | int r; | |
1b39d4b9 LP |
151 | |
152 | log_parse_environment(); | |
153 | log_open(); | |
154 | ||
601185b4 ZJS |
155 | r = parse_argv(argc, argv); |
156 | if (r <= 0) | |
1b39d4b9 LP |
157 | goto finish; |
158 | ||
7dcda352 LP |
159 | if (arg_timeout > 0) |
160 | timeout = now(CLOCK_MONOTONIC) + arg_timeout; | |
161 | else | |
162 | timeout = 0; | |
163 | ||
e287086b LP |
164 | r = ask_password_auto(arg_message, arg_icon, arg_id, arg_keyname, timeout, arg_flags, &l); |
165 | if (r < 0) { | |
166 | log_error_errno(r, "Failed to query password: %m"); | |
167 | goto finish; | |
168 | } | |
21bc923a | 169 | |
e287086b LP |
170 | STRV_FOREACH(p, l) { |
171 | puts(*p); | |
ec863ba6 | 172 | |
e287086b LP |
173 | if (!arg_multiple) |
174 | break; | |
7f4e0805 | 175 | } |
1b39d4b9 LP |
176 | |
177 | finish: | |
e287086b LP |
178 | free(arg_message); |
179 | ||
1b39d4b9 LP |
180 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; |
181 | } |