src/shared/ask-password-api.c

	ask-password-api.c revision 981e4cd325410384cdadd837f34c002699d2d750
0797faae937515a5225a36db4a1ec79480d2555cjorton/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton/***
0797faae937515a5225a36db4a1ec79480d2555cjorton  This file is part of systemd.
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton  Copyright 2010 Lennart Poettering
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton  systemd is free software; you can redistribute it and/or modify it
0797faae937515a5225a36db4a1ec79480d2555cjorton  under the terms of the GNU Lesser General Public License as published by
0797faae937515a5225a36db4a1ec79480d2555cjorton  the Free Software Foundation; either version 2.1 of the License, or
0797faae937515a5225a36db4a1ec79480d2555cjorton  (at your option) any later version.
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton  systemd is distributed in the hope that it will be useful, but
0797faae937515a5225a36db4a1ec79480d2555cjorton  WITHOUT ANY WARRANTY; without even the implied warranty of
0797faae937515a5225a36db4a1ec79480d2555cjorton  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
0797faae937515a5225a36db4a1ec79480d2555cjorton  Lesser General Public License for more details.
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton  You should have received a copy of the GNU Lesser General Public License
0797faae937515a5225a36db4a1ec79480d2555cjorton  along with systemd; If not, see <http://www.gnu.org/licenses/>.
0797faae937515a5225a36db4a1ec79480d2555cjorton***/
0797faae937515a5225a36db4a1ec79480d2555cjorton#include <stdbool.h>
0797faae937515a5225a36db4a1ec79480d2555cjorton#include <termios.h>
0797faae937515a5225a36db4a1ec79480d2555cjorton#include <unistd.h>
0797faae937515a5225a36db4a1ec79480d2555cjorton#include <sys/poll.h>
0797faae937515a5225a36db4a1ec79480d2555cjorton#include <sys/inotify.h>
0797faae937515a5225a36db4a1ec79480d2555cjorton#include <errno.h>
0797faae937515a5225a36db4a1ec79480d2555cjorton#include <fcntl.h>
0797faae937515a5225a36db4a1ec79480d2555cjorton#include <sys/socket.h>
0797faae937515a5225a36db4a1ec79480d2555cjorton#include <string.h>
0797faae937515a5225a36db4a1ec79480d2555cjorton#include <sys/un.h>
0797faae937515a5225a36db4a1ec79480d2555cjorton#include <stddef.h>
0797faae937515a5225a36db4a1ec79480d2555cjorton#include <sys/signalfd.h>
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton#include "util.h"
0797faae937515a5225a36db4a1ec79480d2555cjorton#include "mkdir.h"
0797faae937515a5225a36db4a1ec79480d2555cjorton#include "strv.h"
dca6643570b2f028bc7af76329bd7e333bf7493cpquerna
dca6643570b2f028bc7af76329bd7e333bf7493cpquerna#include "ask-password-api.h"
dca6643570b2f028bc7af76329bd7e333bf7493cpquerna
dca6643570b2f028bc7af76329bd7e333bf7493cpquernastatic void backspace_chars(int ttyfd, size_t p) {
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton        if (ttyfd < 0)
2685f3814b77577ef7b2523442dab1ca88df1e41jorton                return;
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton        while (p > 0) {
0797faae937515a5225a36db4a1ec79480d2555cjorton                p--;
a10d8ce69c26142323c66adaba109be1b4baa379wrowe
a10d8ce69c26142323c66adaba109be1b4baa379wrowe                loop_write(ttyfd, "\b \b", 3, false);
0797faae937515a5225a36db4a1ec79480d2555cjorton        }
0797faae937515a5225a36db4a1ec79480d2555cjorton}
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjortonint ask_password_tty(
0797faae937515a5225a36db4a1ec79480d2555cjorton                const char *message,
eab15974b1d8bbcb6d4f9ec75527b39ffded82aajorton                usec_t until,
0797faae937515a5225a36db4a1ec79480d2555cjorton                const char *flag_file,
bf8ae84ccab0e10cacda6098f6a696577752c433wrowe                char **_passphrase) {
bf8ae84ccab0e10cacda6098f6a696577752c433wrowe
bf8ae84ccab0e10cacda6098f6a696577752c433wrowe        struct termios old_termios, new_termios;
bf8ae84ccab0e10cacda6098f6a696577752c433wrowe        char passphrase[LINE_MAX], *x;
8c4aed3f92674325e17d8360ee2797beda3a1472jorton        size_t p = 0;
bf8ae84ccab0e10cacda6098f6a696577752c433wrowe        int r;
8c4aed3f92674325e17d8360ee2797beda3a1472jorton        _cleanup_close_ int ttyfd = -1, notify = -1;
0797faae937515a5225a36db4a1ec79480d2555cjorton        struct pollfd pollfd[2];
eab15974b1d8bbcb6d4f9ec75527b39ffded82aajorton        bool reset_tty = false;
0797faae937515a5225a36db4a1ec79480d2555cjorton        bool silent_mode = false;
eab15974b1d8bbcb6d4f9ec75527b39ffded82aajorton        bool dirty = false;
eab15974b1d8bbcb6d4f9ec75527b39ffded82aajorton        enum {
0797faae937515a5225a36db4a1ec79480d2555cjorton                POLL_TTY,
eab15974b1d8bbcb6d4f9ec75527b39ffded82aajorton                POLL_INOTIFY
eab15974b1d8bbcb6d4f9ec75527b39ffded82aajorton        };
0797faae937515a5225a36db4a1ec79480d2555cjorton
eab15974b1d8bbcb6d4f9ec75527b39ffded82aajorton        assert(message);
eab15974b1d8bbcb6d4f9ec75527b39ffded82aajorton        assert(_passphrase);
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton        if (flag_file) {
0797faae937515a5225a36db4a1ec79480d2555cjorton                notify = inotify_init1(IN_CLOEXEC|IN_NONBLOCK);
2685f3814b77577ef7b2523442dab1ca88df1e41jorton                if (notify < 0) {
0797faae937515a5225a36db4a1ec79480d2555cjorton                        r = -errno;
501e60e433e1914c64f642114fbb4fb9be9e2ca9jorton                        goto finish;
501e60e433e1914c64f642114fbb4fb9be9e2ca9jorton                }
501e60e433e1914c64f642114fbb4fb9be9e2ca9jorton
0797faae937515a5225a36db4a1ec79480d2555cjorton                if (inotify_add_watch(notify, flag_file, IN_ATTRIB /* for the link count */) < 0) {
2685f3814b77577ef7b2523442dab1ca88df1e41jorton                        r = -errno;
2685f3814b77577ef7b2523442dab1ca88df1e41jorton                        goto finish;
0797faae937515a5225a36db4a1ec79480d2555cjorton                }
0797faae937515a5225a36db4a1ec79480d2555cjorton        }
2685f3814b77577ef7b2523442dab1ca88df1e41jorton
0797faae937515a5225a36db4a1ec79480d2555cjorton        ttyfd = open("/dev/tty", O_RDWR|O_NOCTTY|O_CLOEXEC);
0797faae937515a5225a36db4a1ec79480d2555cjorton        if (ttyfd >= 0) {
0797faae937515a5225a36db4a1ec79480d2555cjorton
8c4aed3f92674325e17d8360ee2797beda3a1472jorton                if (tcgetattr(ttyfd, &old_termios) < 0) {
8c4aed3f92674325e17d8360ee2797beda3a1472jorton                        r = -errno;
8c4aed3f92674325e17d8360ee2797beda3a1472jorton                        goto finish;
8c4aed3f92674325e17d8360ee2797beda3a1472jorton                }
8c4aed3f92674325e17d8360ee2797beda3a1472jorton
0797faae937515a5225a36db4a1ec79480d2555cjorton                loop_write(ttyfd, ANSI_HIGHLIGHT_ON, sizeof(ANSI_HIGHLIGHT_ON)-1, false);
fca945cb6bed035dcc6bbced5e327bbd4d8420abjorton                loop_write(ttyfd, message, strlen(message), false);
0797faae937515a5225a36db4a1ec79480d2555cjorton                loop_write(ttyfd, " ", 1, false);
0797faae937515a5225a36db4a1ec79480d2555cjorton                loop_write(ttyfd, ANSI_HIGHLIGHT_OFF, sizeof(ANSI_HIGHLIGHT_OFF)-1, false);
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton                new_termios = old_termios;
0797faae937515a5225a36db4a1ec79480d2555cjorton                new_termios.c_lflag &= ~(ICANON|ECHO);
2685f3814b77577ef7b2523442dab1ca88df1e41jorton                new_termios.c_cc[VMIN] = 1;
fca945cb6bed035dcc6bbced5e327bbd4d8420abjorton                new_termios.c_cc[VTIME] = 0;
fca945cb6bed035dcc6bbced5e327bbd4d8420abjorton
2685f3814b77577ef7b2523442dab1ca88df1e41jorton                if (tcsetattr(ttyfd, TCSADRAIN, &new_termios) < 0) {
0797faae937515a5225a36db4a1ec79480d2555cjorton                        r = -errno;
0797faae937515a5225a36db4a1ec79480d2555cjorton                        goto finish;
0797faae937515a5225a36db4a1ec79480d2555cjorton                }
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton                reset_tty = true;
0797faae937515a5225a36db4a1ec79480d2555cjorton        }
8c4aed3f92674325e17d8360ee2797beda3a1472jorton
8c4aed3f92674325e17d8360ee2797beda3a1472jorton        zero(pollfd);
8c4aed3f92674325e17d8360ee2797beda3a1472jorton        pollfd[POLL_TTY].fd = ttyfd >= 0 ? ttyfd : STDIN_FILENO;
8c4aed3f92674325e17d8360ee2797beda3a1472jorton        pollfd[POLL_TTY].events = POLLIN;
8c4aed3f92674325e17d8360ee2797beda3a1472jorton        pollfd[POLL_INOTIFY].fd = notify;
8c4aed3f92674325e17d8360ee2797beda3a1472jorton        pollfd[POLL_INOTIFY].events = POLLIN;
8c4aed3f92674325e17d8360ee2797beda3a1472jorton
8c4aed3f92674325e17d8360ee2797beda3a1472jorton        for (;;) {
8c4aed3f92674325e17d8360ee2797beda3a1472jorton                char c;
8c4aed3f92674325e17d8360ee2797beda3a1472jorton                int sleep_for = -1, k;
8c4aed3f92674325e17d8360ee2797beda3a1472jorton                ssize_t n;
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton                if (until > 0) {
0797faae937515a5225a36db4a1ec79480d2555cjorton                        usec_t y;
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton                        y = now(CLOCK_MONOTONIC);
0797faae937515a5225a36db4a1ec79480d2555cjorton
eab15974b1d8bbcb6d4f9ec75527b39ffded82aajorton                        if (y > until) {
0797faae937515a5225a36db4a1ec79480d2555cjorton                                r = -ETIME;
eab15974b1d8bbcb6d4f9ec75527b39ffded82aajorton                                goto finish;
0797faae937515a5225a36db4a1ec79480d2555cjorton                        }
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton                        sleep_for = (int) ((until - y) / USEC_PER_MSEC);
0797faae937515a5225a36db4a1ec79480d2555cjorton                }
0797faae937515a5225a36db4a1ec79480d2555cjorton
fca945cb6bed035dcc6bbced5e327bbd4d8420abjorton                if (flag_file)
a10d8ce69c26142323c66adaba109be1b4baa379wrowe                        if (access(flag_file, F_OK) < 0) {
fca945cb6bed035dcc6bbced5e327bbd4d8420abjorton                                r = -errno;
0b310e2cb91c7ca69a95637c05fae2fb124d7fcfpquerna                                goto finish;
0797faae937515a5225a36db4a1ec79480d2555cjorton                        }
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton                k = poll(pollfd, notify > 0 ? 2 : 1, sleep_for);
0797faae937515a5225a36db4a1ec79480d2555cjorton                if (k < 0) {
0797faae937515a5225a36db4a1ec79480d2555cjorton                        if (errno == EINTR)
0797faae937515a5225a36db4a1ec79480d2555cjorton                                continue;
a91a59d0b0ceed7cd5621fe8757eda5ff6a043a8pquerna
eab15974b1d8bbcb6d4f9ec75527b39ffded82aajorton                        r = -errno;
a91a59d0b0ceed7cd5621fe8757eda5ff6a043a8pquerna                        goto finish;
0797faae937515a5225a36db4a1ec79480d2555cjorton                } else if (k == 0) {
a91a59d0b0ceed7cd5621fe8757eda5ff6a043a8pquerna                        r = -ETIME;
0797faae937515a5225a36db4a1ec79480d2555cjorton                        goto finish;
a91a59d0b0ceed7cd5621fe8757eda5ff6a043a8pquerna                }
0797faae937515a5225a36db4a1ec79480d2555cjorton
eab15974b1d8bbcb6d4f9ec75527b39ffded82aajorton                if (notify > 0 && pollfd[POLL_INOTIFY].revents != 0)
a91a59d0b0ceed7cd5621fe8757eda5ff6a043a8pquerna                        flush_fd(notify);
0797faae937515a5225a36db4a1ec79480d2555cjorton
a91a59d0b0ceed7cd5621fe8757eda5ff6a043a8pquerna                if (pollfd[POLL_TTY].revents == 0)
0797faae937515a5225a36db4a1ec79480d2555cjorton                        continue;
a91a59d0b0ceed7cd5621fe8757eda5ff6a043a8pquerna
0797faae937515a5225a36db4a1ec79480d2555cjorton                n = read(ttyfd >= 0 ? ttyfd : STDIN_FILENO, &c, 1);
0797faae937515a5225a36db4a1ec79480d2555cjorton                if (n < 0) {
0797faae937515a5225a36db4a1ec79480d2555cjorton                        if (errno == EINTR || errno == EAGAIN)
0797faae937515a5225a36db4a1ec79480d2555cjorton                                continue;
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton                        r = -errno;
0797faae937515a5225a36db4a1ec79480d2555cjorton                        goto finish;
0797faae937515a5225a36db4a1ec79480d2555cjorton
4b0e00b3346b3e8fd53219d060f4cf6676847a06jim                } else if (n == 0)
0797faae937515a5225a36db4a1ec79480d2555cjorton                        break;
0797faae937515a5225a36db4a1ec79480d2555cjorton
eab15974b1d8bbcb6d4f9ec75527b39ffded82aajorton                if (c == '\n')
eab15974b1d8bbcb6d4f9ec75527b39ffded82aajorton                        break;
0797faae937515a5225a36db4a1ec79480d2555cjorton                else if (c == 21) { /* C-u */
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton                        if (!silent_mode)
0797faae937515a5225a36db4a1ec79480d2555cjorton                                backspace_chars(ttyfd, p);
0797faae937515a5225a36db4a1ec79480d2555cjorton                        p = 0;
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton                } else if (c == '\b' || c == 127) {
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton                        if (p > 0) {
501e60e433e1914c64f642114fbb4fb9be9e2ca9jorton
501e60e433e1914c64f642114fbb4fb9be9e2ca9jorton                                if (!silent_mode)
a10d8ce69c26142323c66adaba109be1b4baa379wrowe                                        backspace_chars(ttyfd, 1);
501e60e433e1914c64f642114fbb4fb9be9e2ca9jorton
501e60e433e1914c64f642114fbb4fb9be9e2ca9jorton                                p--;
0797faae937515a5225a36db4a1ec79480d2555cjorton                        } else if (!dirty && !silent_mode) {
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton                                silent_mode = true;
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton                                /* There are two ways to enter silent
0797faae937515a5225a36db4a1ec79480d2555cjorton                                 * mode. Either by pressing backspace
0797faae937515a5225a36db4a1ec79480d2555cjorton                                 * as first key (and only as first key),
0797faae937515a5225a36db4a1ec79480d2555cjorton                                 * or ... */
0797faae937515a5225a36db4a1ec79480d2555cjorton                                if (ttyfd >= 0)
0797faae937515a5225a36db4a1ec79480d2555cjorton                                        loop_write(ttyfd, "(no echo) ", 10, false);
a10d8ce69c26142323c66adaba109be1b4baa379wrowe
0797faae937515a5225a36db4a1ec79480d2555cjorton                        } else if (ttyfd >= 0)
0797faae937515a5225a36db4a1ec79480d2555cjorton                                loop_write(ttyfd, "\a", 1, false);
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton                } else if (c == '\t' && !silent_mode) {
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton                        backspace_chars(ttyfd, p);
a10d8ce69c26142323c66adaba109be1b4baa379wrowe                        silent_mode = true;
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton                        /* ... or by pressing TAB at any time. */
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton                        if (ttyfd >= 0)
0797faae937515a5225a36db4a1ec79480d2555cjorton                                loop_write(ttyfd, "(no echo) ", 10, false);
0797faae937515a5225a36db4a1ec79480d2555cjorton                } else {
0797faae937515a5225a36db4a1ec79480d2555cjorton                        if (p >= sizeof(passphrase)-1) {
0797faae937515a5225a36db4a1ec79480d2555cjorton                                loop_write(ttyfd, "\a", 1, false);
0797faae937515a5225a36db4a1ec79480d2555cjorton                                continue;
0797faae937515a5225a36db4a1ec79480d2555cjorton                        }
a10d8ce69c26142323c66adaba109be1b4baa379wrowe
0797faae937515a5225a36db4a1ec79480d2555cjorton                        passphrase[p++] = c;
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton                        if (!silent_mode && ttyfd >= 0)
0797faae937515a5225a36db4a1ec79480d2555cjorton                                loop_write(ttyfd, "*", 1, false);
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton                        dirty = true;
a10d8ce69c26142323c66adaba109be1b4baa379wrowe                }
a10d8ce69c26142323c66adaba109be1b4baa379wrowe        }
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton        x = strndup(passphrase, p);
0797faae937515a5225a36db4a1ec79480d2555cjorton        if (!x) {
0797faae937515a5225a36db4a1ec79480d2555cjorton                r = -ENOMEM;
0797faae937515a5225a36db4a1ec79480d2555cjorton                goto finish;
eab15974b1d8bbcb6d4f9ec75527b39ffded82aajorton        }
0797faae937515a5225a36db4a1ec79480d2555cjorton
eab15974b1d8bbcb6d4f9ec75527b39ffded82aajorton        *_passphrase = x;
0797faae937515a5225a36db4a1ec79480d2555cjorton        r = 0;
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjortonfinish:
0797faae937515a5225a36db4a1ec79480d2555cjorton        if (ttyfd >= 0 && reset_tty) {
0797faae937515a5225a36db4a1ec79480d2555cjorton                loop_write(ttyfd, "\n", 1, false);
0797faae937515a5225a36db4a1ec79480d2555cjorton                tcsetattr(ttyfd, TCSADRAIN, &old_termios);
0797faae937515a5225a36db4a1ec79480d2555cjorton        }
eab15974b1d8bbcb6d4f9ec75527b39ffded82aajorton
0797faae937515a5225a36db4a1ec79480d2555cjorton        return r;
0797faae937515a5225a36db4a1ec79480d2555cjorton}
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjortonstatic int create_socket(char **name) {
0797faae937515a5225a36db4a1ec79480d2555cjorton        int fd;
0797faae937515a5225a36db4a1ec79480d2555cjorton        union {
0797faae937515a5225a36db4a1ec79480d2555cjorton                struct sockaddr sa;
0797faae937515a5225a36db4a1ec79480d2555cjorton                struct sockaddr_un un;
0797faae937515a5225a36db4a1ec79480d2555cjorton        } sa = {
0797faae937515a5225a36db4a1ec79480d2555cjorton                .un.sun_family = AF_UNIX,
0797faae937515a5225a36db4a1ec79480d2555cjorton        };
0797faae937515a5225a36db4a1ec79480d2555cjorton        int one = 1;
0797faae937515a5225a36db4a1ec79480d2555cjorton        int r = 0;
0797faae937515a5225a36db4a1ec79480d2555cjorton        char *c;
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton        assert(name);
072f7e449a76d28b580de6e89a1723713ab9adb1jorton
072f7e449a76d28b580de6e89a1723713ab9adb1jorton        fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0);
072f7e449a76d28b580de6e89a1723713ab9adb1jorton        if (fd < 0) {
072f7e449a76d28b580de6e89a1723713ab9adb1jorton                log_error("socket() failed: %m");
0797faae937515a5225a36db4a1ec79480d2555cjorton                return -errno;
0797faae937515a5225a36db4a1ec79480d2555cjorton        }
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton        snprintf(sa.un.sun_path, sizeof(sa.un.sun_path)-1, "/run/systemd/ask-password/sck.%" PRIx64, random_u64());
0797faae937515a5225a36db4a1ec79480d2555cjorton
a10d8ce69c26142323c66adaba109be1b4baa379wrowe        RUN_WITH_UMASK(0177) {
a10d8ce69c26142323c66adaba109be1b4baa379wrowe                r = bind(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path));
0797faae937515a5225a36db4a1ec79480d2555cjorton        }
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton        if (r < 0) {
0797faae937515a5225a36db4a1ec79480d2555cjorton                r = -errno;
0797faae937515a5225a36db4a1ec79480d2555cjorton                log_error("bind() failed: %m");
0797faae937515a5225a36db4a1ec79480d2555cjorton                goto fail;
0797faae937515a5225a36db4a1ec79480d2555cjorton        }
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton        if (setsockopt(fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)) < 0) {
0797faae937515a5225a36db4a1ec79480d2555cjorton                r = -errno;
0797faae937515a5225a36db4a1ec79480d2555cjorton                log_error("SO_PASSCRED failed: %m");
0797faae937515a5225a36db4a1ec79480d2555cjorton                goto fail;
0797faae937515a5225a36db4a1ec79480d2555cjorton        }
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton        c = strdup(sa.un.sun_path);
eab15974b1d8bbcb6d4f9ec75527b39ffded82aajorton        if (!c) {
0797faae937515a5225a36db4a1ec79480d2555cjorton                r = log_oom();
eab15974b1d8bbcb6d4f9ec75527b39ffded82aajorton                goto fail;
0797faae937515a5225a36db4a1ec79480d2555cjorton        }
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton        *name = c;
0797faae937515a5225a36db4a1ec79480d2555cjorton        return fd;
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjortonfail:
0797faae937515a5225a36db4a1ec79480d2555cjorton        safe_close(fd);
70003ce816d7851e49ecb0cdc5137becd647ed18niq
0797faae937515a5225a36db4a1ec79480d2555cjorton        return r;
a10d8ce69c26142323c66adaba109be1b4baa379wrowe}
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjortonint ask_password_agent(
0797faae937515a5225a36db4a1ec79480d2555cjorton                const char *message,
0797faae937515a5225a36db4a1ec79480d2555cjorton                const char *icon,
0797faae937515a5225a36db4a1ec79480d2555cjorton                usec_t until,
a10d8ce69c26142323c66adaba109be1b4baa379wrowe                bool accept_cached,
0797faae937515a5225a36db4a1ec79480d2555cjorton                char ***_passphrases) {
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton        enum {
0797faae937515a5225a36db4a1ec79480d2555cjorton                FD_SOCKET,
0797faae937515a5225a36db4a1ec79480d2555cjorton                FD_SIGNAL,
0797faae937515a5225a36db4a1ec79480d2555cjorton                _FD_MAX
a10d8ce69c26142323c66adaba109be1b4baa379wrowe        };
a10d8ce69c26142323c66adaba109be1b4baa379wrowe
0797faae937515a5225a36db4a1ec79480d2555cjorton        char temp[] = "/run/systemd/ask-password/tmp.XXXXXX";
0797faae937515a5225a36db4a1ec79480d2555cjorton        char final[sizeof(temp)] = "";
0797faae937515a5225a36db4a1ec79480d2555cjorton        _cleanup_fclose_ FILE *f = NULL;
0797faae937515a5225a36db4a1ec79480d2555cjorton        _cleanup_free_ char *socket_name = NULL;
a10d8ce69c26142323c66adaba109be1b4baa379wrowe        _cleanup_close_ int socket_fd = -1, signal_fd = -1, fd = -1;
0797faae937515a5225a36db4a1ec79480d2555cjorton        sigset_t mask, oldmask;
0797faae937515a5225a36db4a1ec79480d2555cjorton        struct pollfd pollfd[_FD_MAX];
0797faae937515a5225a36db4a1ec79480d2555cjorton        int r;
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton        assert(_passphrases);
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton        assert_se(sigemptyset(&mask) == 0);
0797faae937515a5225a36db4a1ec79480d2555cjorton        sigset_add_many(&mask, SIGINT, SIGTERM, -1);
501e60e433e1914c64f642114fbb4fb9be9e2ca9jorton        assert_se(sigprocmask(SIG_BLOCK, &mask, &oldmask) == 0);
501e60e433e1914c64f642114fbb4fb9be9e2ca9jorton
501e60e433e1914c64f642114fbb4fb9be9e2ca9jorton        mkdir_p_label("/run/systemd/ask-password", 0755);
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton        fd = mkostemp_safe(temp, O_WRONLY|O_CLOEXEC);
0797faae937515a5225a36db4a1ec79480d2555cjorton        if (fd < 0) {
0797faae937515a5225a36db4a1ec79480d2555cjorton                log_error("Failed to create password file: %m");
0797faae937515a5225a36db4a1ec79480d2555cjorton                r = -errno;
0797faae937515a5225a36db4a1ec79480d2555cjorton                goto finish;
0797faae937515a5225a36db4a1ec79480d2555cjorton        }
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton        fchmod(fd, 0644);
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton        f = fdopen(fd, "w");
0797faae937515a5225a36db4a1ec79480d2555cjorton        if (!f) {
0797faae937515a5225a36db4a1ec79480d2555cjorton                log_error("Failed to allocate FILE: %m");
eab15974b1d8bbcb6d4f9ec75527b39ffded82aajorton                r = -errno;
0797faae937515a5225a36db4a1ec79480d2555cjorton                goto finish;
eab15974b1d8bbcb6d4f9ec75527b39ffded82aajorton        }
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton        fd = -1;
501e60e433e1914c64f642114fbb4fb9be9e2ca9jorton
0797faae937515a5225a36db4a1ec79480d2555cjorton        signal_fd = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC);
0797faae937515a5225a36db4a1ec79480d2555cjorton        if (signal_fd < 0) {
0797faae937515a5225a36db4a1ec79480d2555cjorton                log_error("signalfd(): %m");
0797faae937515a5225a36db4a1ec79480d2555cjorton                r = -errno;
501e60e433e1914c64f642114fbb4fb9be9e2ca9jorton                goto finish;
0797faae937515a5225a36db4a1ec79480d2555cjorton        }
0797faae937515a5225a36db4a1ec79480d2555cjorton
2685f3814b77577ef7b2523442dab1ca88df1e41jorton        socket_fd = create_socket(&socket_name);
0797faae937515a5225a36db4a1ec79480d2555cjorton        if (socket_fd < 0) {
0797faae937515a5225a36db4a1ec79480d2555cjorton                r = socket_fd;
0797faae937515a5225a36db4a1ec79480d2555cjorton                goto finish;
0797faae937515a5225a36db4a1ec79480d2555cjorton        }
a10d8ce69c26142323c66adaba109be1b4baa379wrowe
a10d8ce69c26142323c66adaba109be1b4baa379wrowe        fprintf(f,
a10d8ce69c26142323c66adaba109be1b4baa379wrowe                "[Ask]\n"
a10d8ce69c26142323c66adaba109be1b4baa379wrowe                "PID=%lu\n"
0797faae937515a5225a36db4a1ec79480d2555cjorton                "Socket=%s\n"
0797faae937515a5225a36db4a1ec79480d2555cjorton                "AcceptCached=%i\n"
0797faae937515a5225a36db4a1ec79480d2555cjorton                "NotAfter=%llu\n",
a10d8ce69c26142323c66adaba109be1b4baa379wrowe                (unsigned long) getpid(),
0797faae937515a5225a36db4a1ec79480d2555cjorton                socket_name,
0797faae937515a5225a36db4a1ec79480d2555cjorton                accept_cached ? 1 : 0,
0797faae937515a5225a36db4a1ec79480d2555cjorton                (unsigned long long) until);
a10d8ce69c26142323c66adaba109be1b4baa379wrowe
a10d8ce69c26142323c66adaba109be1b4baa379wrowe        if (message)
0797faae937515a5225a36db4a1ec79480d2555cjorton                fprintf(f, "Message=%s\n", message);
3e7ce568813f1895b2e8e68e2223653884497bdawrowe
0797faae937515a5225a36db4a1ec79480d2555cjorton        if (icon)
a10d8ce69c26142323c66adaba109be1b4baa379wrowe                fprintf(f, "Icon=%s\n", icon);
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton        fflush(f);
0797faae937515a5225a36db4a1ec79480d2555cjorton
a10d8ce69c26142323c66adaba109be1b4baa379wrowe        if (ferror(f)) {
0797faae937515a5225a36db4a1ec79480d2555cjorton                log_error("Failed to write query file: %m");
0797faae937515a5225a36db4a1ec79480d2555cjorton                r = -errno;
0797faae937515a5225a36db4a1ec79480d2555cjorton                goto finish;
0797faae937515a5225a36db4a1ec79480d2555cjorton        }
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton        memcpy(final, temp, sizeof(temp));
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton        final[sizeof(final)-11] = 'a';
0797faae937515a5225a36db4a1ec79480d2555cjorton        final[sizeof(final)-10] = 's';
0797faae937515a5225a36db4a1ec79480d2555cjorton        final[sizeof(final)-9] = 'k';
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton        if (rename(temp, final) < 0) {
0797faae937515a5225a36db4a1ec79480d2555cjorton                log_error("Failed to rename query file: %m");
0797faae937515a5225a36db4a1ec79480d2555cjorton                r = -errno;
0797faae937515a5225a36db4a1ec79480d2555cjorton                goto finish;
0797faae937515a5225a36db4a1ec79480d2555cjorton        }
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton        zero(pollfd);
0797faae937515a5225a36db4a1ec79480d2555cjorton        pollfd[FD_SOCKET].fd = socket_fd;
0797faae937515a5225a36db4a1ec79480d2555cjorton        pollfd[FD_SOCKET].events = POLLIN;
0797faae937515a5225a36db4a1ec79480d2555cjorton        pollfd[FD_SIGNAL].fd = signal_fd;
0797faae937515a5225a36db4a1ec79480d2555cjorton        pollfd[FD_SIGNAL].events = POLLIN;
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton        for (;;) {
0797faae937515a5225a36db4a1ec79480d2555cjorton                char passphrase[LINE_MAX+1];
eab15974b1d8bbcb6d4f9ec75527b39ffded82aajorton                struct msghdr msghdr;
0797faae937515a5225a36db4a1ec79480d2555cjorton                struct iovec iovec;
eab15974b1d8bbcb6d4f9ec75527b39ffded82aajorton                struct ucred *ucred;
0797faae937515a5225a36db4a1ec79480d2555cjorton                union {
0797faae937515a5225a36db4a1ec79480d2555cjorton                        struct cmsghdr cmsghdr;
0797faae937515a5225a36db4a1ec79480d2555cjorton                        uint8_t buf[CMSG_SPACE(sizeof(struct ucred))];
0797faae937515a5225a36db4a1ec79480d2555cjorton                } control;
0797faae937515a5225a36db4a1ec79480d2555cjorton                ssize_t n;
0797faae937515a5225a36db4a1ec79480d2555cjorton                int k;
a10d8ce69c26142323c66adaba109be1b4baa379wrowe                usec_t t;
a10d8ce69c26142323c66adaba109be1b4baa379wrowe
0797faae937515a5225a36db4a1ec79480d2555cjorton                t = now(CLOCK_MONOTONIC);
a10d8ce69c26142323c66adaba109be1b4baa379wrowe
a10d8ce69c26142323c66adaba109be1b4baa379wrowe                if (until > 0 && until <= t) {
0797faae937515a5225a36db4a1ec79480d2555cjorton                        log_notice("Timed out");
a10d8ce69c26142323c66adaba109be1b4baa379wrowe                        r = -ETIME;
a10d8ce69c26142323c66adaba109be1b4baa379wrowe                        goto finish;
a10d8ce69c26142323c66adaba109be1b4baa379wrowe                }
0797faae937515a5225a36db4a1ec79480d2555cjorton
a10d8ce69c26142323c66adaba109be1b4baa379wrowe                k = poll(pollfd, _FD_MAX, until > 0 ? (int) ((until-t)/USEC_PER_MSEC) : -1);
0797faae937515a5225a36db4a1ec79480d2555cjorton                if (k < 0) {
0797faae937515a5225a36db4a1ec79480d2555cjorton                        if (errno == EINTR)
0797faae937515a5225a36db4a1ec79480d2555cjorton                                continue;
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton                        log_error("poll() failed: %m");
0797faae937515a5225a36db4a1ec79480d2555cjorton                        r = -errno;
0797faae937515a5225a36db4a1ec79480d2555cjorton                        goto finish;
0797faae937515a5225a36db4a1ec79480d2555cjorton                }
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton                if (k <= 0) {
0797faae937515a5225a36db4a1ec79480d2555cjorton                        log_notice("Timed out");
0797faae937515a5225a36db4a1ec79480d2555cjorton                        r = -ETIME;
0797faae937515a5225a36db4a1ec79480d2555cjorton                        goto finish;
eab15974b1d8bbcb6d4f9ec75527b39ffded82aajorton                }
0797faae937515a5225a36db4a1ec79480d2555cjorton
eab15974b1d8bbcb6d4f9ec75527b39ffded82aajorton                if (pollfd[FD_SIGNAL].revents & POLLIN) {
0797faae937515a5225a36db4a1ec79480d2555cjorton                        r = -EINTR;
0797faae937515a5225a36db4a1ec79480d2555cjorton                        goto finish;
0797faae937515a5225a36db4a1ec79480d2555cjorton                }
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton                if (pollfd[FD_SOCKET].revents != POLLIN) {
0797faae937515a5225a36db4a1ec79480d2555cjorton                        log_error("Unexpected poll() event.");
a10d8ce69c26142323c66adaba109be1b4baa379wrowe                        r = -EIO;
0797faae937515a5225a36db4a1ec79480d2555cjorton                        goto finish;
0797faae937515a5225a36db4a1ec79480d2555cjorton                }
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton                zero(iovec);
0797faae937515a5225a36db4a1ec79480d2555cjorton                iovec.iov_base = passphrase;
0797faae937515a5225a36db4a1ec79480d2555cjorton                iovec.iov_len = sizeof(passphrase);
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton                zero(control);
8aac9d0a02da972909738eb84a5902199f3298cftrawick                zero(msghdr);
0797faae937515a5225a36db4a1ec79480d2555cjorton                msghdr.msg_iov = &iovec;
a10d8ce69c26142323c66adaba109be1b4baa379wrowe                msghdr.msg_iovlen = 1;
0797faae937515a5225a36db4a1ec79480d2555cjorton                msghdr.msg_control = &control;
0797faae937515a5225a36db4a1ec79480d2555cjorton                msghdr.msg_controllen = sizeof(control);
2685f3814b77577ef7b2523442dab1ca88df1e41jorton
2685f3814b77577ef7b2523442dab1ca88df1e41jorton                n = recvmsg(socket_fd, &msghdr, 0);
0797faae937515a5225a36db4a1ec79480d2555cjorton                if (n < 0) {
0797faae937515a5225a36db4a1ec79480d2555cjorton                        if (errno == EAGAIN ||
0797faae937515a5225a36db4a1ec79480d2555cjorton                            errno == EINTR)
0797faae937515a5225a36db4a1ec79480d2555cjorton                                continue;
a10d8ce69c26142323c66adaba109be1b4baa379wrowe
a10d8ce69c26142323c66adaba109be1b4baa379wrowe                        log_error("recvmsg() failed: %m");
a10d8ce69c26142323c66adaba109be1b4baa379wrowe                        r = -errno;
0797faae937515a5225a36db4a1ec79480d2555cjorton                        goto finish;
0797faae937515a5225a36db4a1ec79480d2555cjorton                }
a10d8ce69c26142323c66adaba109be1b4baa379wrowe
a10d8ce69c26142323c66adaba109be1b4baa379wrowe                if (n <= 0) {
0797faae937515a5225a36db4a1ec79480d2555cjorton                        log_error("Message too short");
0797faae937515a5225a36db4a1ec79480d2555cjorton                        continue;
0797faae937515a5225a36db4a1ec79480d2555cjorton                }
eab15974b1d8bbcb6d4f9ec75527b39ffded82aajorton
0797faae937515a5225a36db4a1ec79480d2555cjorton                if (msghdr.msg_controllen < CMSG_LEN(sizeof(struct ucred)) ||
eab15974b1d8bbcb6d4f9ec75527b39ffded82aajorton                    control.cmsghdr.cmsg_level != SOL_SOCKET ||
0797faae937515a5225a36db4a1ec79480d2555cjorton                    control.cmsghdr.cmsg_type != SCM_CREDENTIALS ||
0797faae937515a5225a36db4a1ec79480d2555cjorton                    control.cmsghdr.cmsg_len != CMSG_LEN(sizeof(struct ucred))) {
0797faae937515a5225a36db4a1ec79480d2555cjorton                        log_warning("Received message without credentials. Ignoring.");
0797faae937515a5225a36db4a1ec79480d2555cjorton                        continue;
0797faae937515a5225a36db4a1ec79480d2555cjorton                }
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton                ucred = (struct ucred*) CMSG_DATA(&control.cmsghdr);
0797faae937515a5225a36db4a1ec79480d2555cjorton                if (ucred->uid != 0) {
0797faae937515a5225a36db4a1ec79480d2555cjorton                        log_warning("Got request from unprivileged user. Ignoring.");
0797faae937515a5225a36db4a1ec79480d2555cjorton                        continue;
0797faae937515a5225a36db4a1ec79480d2555cjorton                }
0797faae937515a5225a36db4a1ec79480d2555cjorton
a10d8ce69c26142323c66adaba109be1b4baa379wrowe                if (passphrase[0] == '+') {
a10d8ce69c26142323c66adaba109be1b4baa379wrowe                        char **l;
0797faae937515a5225a36db4a1ec79480d2555cjorton
0797faae937515a5225a36db4a1ec79480d2555cjorton                        if (n == 1)
a10d8ce69c26142323c66adaba109be1b4baa379wrowe                                l = strv_new("", NULL);
a10d8ce69c26142323c66adaba109be1b4baa379wrowe                        else
0797faae937515a5225a36db4a1ec79480d2555cjorton                                l = strv_parse_nulstr(passphrase+1, n-1);
a10d8ce69c26142323c66adaba109be1b4baa379wrowe                                /* An empty message refers to the empty password */
0797faae937515a5225a36db4a1ec79480d2555cjorton
a10d8ce69c26142323c66adaba109be1b4baa379wrowe                        if (!l) {
a10d8ce69c26142323c66adaba109be1b4baa379wrowe                                r = -ENOMEM;
0797faae937515a5225a36db4a1ec79480d2555cjorton                                goto finish;
0797faae937515a5225a36db4a1ec79480d2555cjorton                        }
0797faae937515a5225a36db4a1ec79480d2555cjorton
250fbbb51225da0dfc973743b795b04dc9740027wrowe                        if (strv_length(l) <= 0) {
cf25139efeb705911e931b68a521d8b65ff922eewrowe                                strv_free(l);
bd2f929f6974a82e4fd33e0393d2b0c91f6f033atrawick                                log_error("Invalid packet");
bd2f929f6974a82e4fd33e0393d2b0c91f6f033atrawick                                continue;
a10d8ce69c26142323c66adaba109be1b4baa379wrowe                        }
250fbbb51225da0dfc973743b795b04dc9740027wrowe
250fbbb51225da0dfc973743b795b04dc9740027wrowe                        *_passphrases = l;
250fbbb51225da0dfc973743b795b04dc9740027wrowe
250fbbb51225da0dfc973743b795b04dc9740027wrowe                } else if (passphrase[0] == '-') {
250fbbb51225da0dfc973743b795b04dc9740027wrowe                        r = -ECANCELED;
250fbbb51225da0dfc973743b795b04dc9740027wrowe                        goto finish;
250fbbb51225da0dfc973743b795b04dc9740027wrowe                } else {
250fbbb51225da0dfc973743b795b04dc9740027wrowe                        log_error("Invalid packet");
250fbbb51225da0dfc973743b795b04dc9740027wrowe                        continue;
3e7ce568813f1895b2e8e68e2223653884497bdawrowe                }
250fbbb51225da0dfc973743b795b04dc9740027wrowe
3e7ce568813f1895b2e8e68e2223653884497bdawrowe                break;
250fbbb51225da0dfc973743b795b04dc9740027wrowe        }
250fbbb51225da0dfc973743b795b04dc9740027wrowe
250fbbb51225da0dfc973743b795b04dc9740027wrowe        r = 0;
250fbbb51225da0dfc973743b795b04dc9740027wrowe
250fbbb51225da0dfc973743b795b04dc9740027wrowefinish:
250fbbb51225da0dfc973743b795b04dc9740027wrowe        if (socket_name)
250fbbb51225da0dfc973743b795b04dc9740027wrowe                unlink(socket_name);
250fbbb51225da0dfc973743b795b04dc9740027wrowe
250fbbb51225da0dfc973743b795b04dc9740027wrowe        unlink(temp);
250fbbb51225da0dfc973743b795b04dc9740027wrowe
250fbbb51225da0dfc973743b795b04dc9740027wrowe        if (final[0])
250fbbb51225da0dfc973743b795b04dc9740027wrowe                unlink(final);
250fbbb51225da0dfc973743b795b04dc9740027wrowe
250fbbb51225da0dfc973743b795b04dc9740027wrowe        assert_se(sigprocmask(SIG_SETMASK, &oldmask, NULL) == 0);
250fbbb51225da0dfc973743b795b04dc9740027wrowe
250fbbb51225da0dfc973743b795b04dc9740027wrowe        return r;
250fbbb51225da0dfc973743b795b04dc9740027wrowe}
250fbbb51225da0dfc973743b795b04dc9740027wrowe
250fbbb51225da0dfc973743b795b04dc9740027wroweint ask_password_auto(const char *message, const char *icon, usec_t until, bool accept_cached, char ***_passphrases) {
cf25139efeb705911e931b68a521d8b65ff922eewrowe        assert(message);
cf25139efeb705911e931b68a521d8b65ff922eewrowe        assert(_passphrases);
250fbbb51225da0dfc973743b795b04dc9740027wrowe
250fbbb51225da0dfc973743b795b04dc9740027wrowe        if (isatty(STDIN_FILENO)) {
250fbbb51225da0dfc973743b795b04dc9740027wrowe                int r;
250fbbb51225da0dfc973743b795b04dc9740027wrowe                char *s = NULL, **l = NULL;
250fbbb51225da0dfc973743b795b04dc9740027wrowe
250fbbb51225da0dfc973743b795b04dc9740027wrowe                r = ask_password_tty(message, until, NULL, &s);
250fbbb51225da0dfc973743b795b04dc9740027wrowe                if (r < 0)
250fbbb51225da0dfc973743b795b04dc9740027wrowe                        return r;
250fbbb51225da0dfc973743b795b04dc9740027wrowe
250fbbb51225da0dfc973743b795b04dc9740027wrowe                r = strv_consume(&l, s);
250fbbb51225da0dfc973743b795b04dc9740027wrowe                if (r < 0)
250fbbb51225da0dfc973743b795b04dc9740027wrowe                        return r;
250fbbb51225da0dfc973743b795b04dc9740027wrowe
250fbbb51225da0dfc973743b795b04dc9740027wrowe                *_passphrases = l;
250fbbb51225da0dfc973743b795b04dc9740027wrowe                return r;
250fbbb51225da0dfc973743b795b04dc9740027wrowe        } else
250fbbb51225da0dfc973743b795b04dc9740027wrowe                return ask_password_agent(message, icon, until, accept_cached, _passphrases);
250fbbb51225da0dfc973743b795b04dc9740027wrowe}
250fbbb51225da0dfc973743b795b04dc9740027wrowe