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ask-password: add --console mode to ask questions on /dev/console

This commit is contained in:
Lennart Poettering 2010-11-16 04:28:04 +01:00
parent 42e19823e6
commit 0cf8469387
2 changed files with 37 additions and 8 deletions
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2
TODO
View File

@ -75,6 +75,8 @@
* fix hotplug transactions
* isolate multi-user.target doesn't start a getty@tty1 if we run it from graphical.target
External:
* patch kernel for xattr support in /dev, /proc/, /sys and /sys/fs/cgroup.

43
src/tty-ask-password-agent.c
View File

@ -46,6 +46,7 @@ static enum {
} arg_action = ACTION_QUERY;
static bool arg_plymouth = false;
static bool arg_console = false;
static int ask_password_plymouth(const char *message, usec_t until, const char *flag_file, char **_passphrase) {
int fd = -1, notify = -1;
@ -289,9 +290,23 @@ static int parse_password(const char *filename, char **wall) {
if (arg_plymouth)
r = ask_password_plymouth(message, not_after, filename, &password);
else
else {
int tty_fd = -1;
if (arg_console)
if ((tty_fd = acquire_terminal("/dev/console", false, false, false)) < 0) {
r = tty_fd;
goto finish;
}
r = ask_password_tty(message, not_after, filename, &password);
if (arg_console) {
close_nointr_nofail(tty_fd);
release_terminal();
}
}
if (r < 0) {
log_error("Failed to query password: %s", strerror(-r));
goto finish;
@ -336,7 +351,7 @@ finish:
return r;
}
static int tty_block(void) {
static int wall_tty_block(void) {
char *p;
const char *t;
int fd;
@ -359,7 +374,7 @@ static int tty_block(void) {
return fd;
}
static bool tty_match(const char *path) {
static bool wall_tty_match(const char *path) {
int fd;
char *p;
@ -425,7 +440,7 @@ static int show_passwords(void) {
free(p);
if (wall) {
utmp_wall(wall, tty_match);
utmp_wall(wall, wall_tty_match);
free(wall);
}
}
@ -449,7 +464,7 @@ static int watch_passwords(void) {
sigset_t mask;
int r;
tty_block_fd = tty_block();
tty_block_fd = wall_tty_block();
mkdir_p("/dev/.systemd/ask-password", 0755);
@ -481,7 +496,7 @@ static int watch_passwords(void) {
for (;;) {
if ((r = show_passwords()) < 0)
goto finish;
log_error("Failed to show password: %s", strerror(-r));
if (poll(pollfd, _FD_MAX, -1) < 0) {
@ -523,7 +538,8 @@ static int help(void) {
" --query Process pending password requests\n"
" --watch Continously process password requests\n"
" --wall Continously forward password requests to wall\n"
" --plymouth Ask question with Plymouth instead of on TTY\n",
" --plymouth Ask question with Plymouth instead of on TTY\n"
" --console Ask question on /dev/console instead of current TTY\n",
program_invocation_short_name);
return 0;
@ -536,7 +552,8 @@ static int parse_argv(int argc, char *argv[]) {
ARG_QUERY,
ARG_WATCH,
ARG_WALL,
ARG_PLYMOUTH
ARG_PLYMOUTH,
ARG_CONSOLE
};
static const struct option options[] = {
@ -546,6 +563,7 @@ static int parse_argv(int argc, char *argv[]) {
{ "watch", no_argument, NULL, ARG_WATCH },
{ "wall", no_argument, NULL, ARG_WALL },
{ "plymouth", no_argument, NULL, ARG_PLYMOUTH },
{ "console", no_argument, NULL, ARG_CONSOLE },
{ NULL, 0, NULL, 0 }
};
@ -582,6 +600,10 @@ static int parse_argv(int argc, char *argv[]) {
arg_plymouth = true;
break;
case ARG_CONSOLE:
arg_console = true;
break;
case '?':
return -EINVAL;
@ -608,6 +630,11 @@ int main(int argc, char *argv[]) {
if ((r = parse_argv(argc, argv)) <= 0)
goto finish;
if (arg_console) {
setsid();
release_terminal();
}
if (arg_action == ACTION_WATCH ||
arg_action == ACTION_WALL)
r = watch_passwords();