static int adm_control(struct udev *udev, int argc, char *argv[]) {
_cleanup_udev_ctrl_unref_ struct udev_ctrl *uctrl = NULL;
int timeout = 60;
int rc = 1, c;
static const struct option options[] = {
{ "exit", no_argument, NULL, 'e' },
{ "log-priority", required_argument, NULL, 'l' },
{ "stop-exec-queue", no_argument, NULL, 's' },
{ "start-exec-queue", no_argument, NULL, 'S' },
{ "reload", no_argument, NULL, 'R' },
{ "reload-rules", no_argument, NULL, 'R' }, /* alias for -R */
{ "property", required_argument, NULL, 'p' },
{ "env", required_argument, NULL, 'p' }, /* alias for -p */
{ "children-max", required_argument, NULL, 'm' },
{ "timeout", required_argument, NULL, 't' },
{ "version", no_argument, NULL, 'V' },
{ "help", no_argument, NULL, 'h' },
{}
};
if (must_be_root() < 0)
return 1;
uctrl = udev_ctrl_new(udev);
if (uctrl == NULL)
return 2;
while ((c = getopt_long(argc, argv, "el:sSRp:m:t:Vh", options, NULL)) >= 0)
switch (c) {
case 'e':
if (udev_ctrl_send_exit(uctrl, timeout) < 0)
rc = 2;
else
rc = 0;
break;
case 'l': {
int i;
i = util_log_priority(optarg);
if (i < 0) {
log_error("invalid number '%s'", optarg);
return rc;
}
if (udev_ctrl_send_set_log_level(uctrl, util_log_priority(optarg), timeout) < 0)
rc = 2;
else
rc = 0;
break;
}
case 's':
if (udev_ctrl_send_stop_exec_queue(uctrl, timeout) < 0)
rc = 2;
else
rc = 0;
break;
case 'S':
if (udev_ctrl_send_start_exec_queue(uctrl, timeout) < 0)
rc = 2;
else
rc = 0;
break;
case 'R':
if (udev_ctrl_send_reload(uctrl, timeout) < 0)
rc = 2;
else
rc = 0;
break;
case 'p':
if (strchr(optarg, '=') == NULL) {
log_error("expect <KEY>=<value> instead of '%s'", optarg);
return rc;
}
if (udev_ctrl_send_set_env(uctrl, optarg, timeout) < 0)
rc = 2;
else
rc = 0;
break;
case 'm': {
char *endp;
int i;
i = strtoul(optarg, &endp, 0);
if (endp[0] != '\0' || i < 1) {
log_error("invalid number '%s'", optarg);
return rc;
}
if (udev_ctrl_send_set_children_max(uctrl, i, timeout) < 0)
rc = 2;
else
rc = 0;
break;
}
case 't': {
usec_t s;
int seconds;
int r;
r = parse_sec(optarg, &s);
if (r < 0)
return log_error_errno(r, "Failed to parse timeout value '%s'.", optarg);
if (((s + USEC_PER_SEC - 1) / USEC_PER_SEC) > INT_MAX)
log_error("Timeout value is out of range.");
else {
seconds = s != USEC_INFINITY ? (int) ((s + USEC_PER_SEC - 1) / USEC_PER_SEC) : INT_MAX;
timeout = seconds;
rc = 0;
}
break;
}
case 'V':
print_version();
rc = 0;
break;
case 'h':
print_help();
rc = 0;
break;
}
if (optind < argc)
log_error("Extraneous argument: %s", argv[optind]);
else if (optind == 1)
log_error("Option missing");
return rc;
}
int dispatch_verb(int argc, char *argv[], const Verb verbs[], void *userdata) {
const Verb *verb;
const char *name;
unsigned i;
int left, r;
assert(verbs);
assert(verbs[0].dispatch);
assert(argc >= 0);
assert(argv);
assert(argc >= optind);
left = argc - optind;
name = argv[optind];
for (i = 0;; i++) {
bool found;
/* At the end of the list? */
if (!verbs[i].dispatch) {
if (name)
log_error("Unknown operation %s.", name);
else
log_error("Requires operation parameter.");
return -EINVAL;
}
if (name)
found = streq(name, verbs[i].verb);
else
found = !!(verbs[i].flags & VERB_DEFAULT);
if (found) {
verb = &verbs[i];
break;
}
}
assert(verb);
if (!name)
left = 1;
if (verb->min_args != VERB_ANY &&
(unsigned) left < verb->min_args) {
log_error("Too few arguments.");
return -EINVAL;
}
if (verb->max_args != VERB_ANY &&
(unsigned) left > verb->max_args) {
log_error("Too many arguments.");
return -EINVAL;
}
if ((verb->flags & VERB_ONLINE_ONLY) && running_in_chroot_or_offline()) {
if (name)
log_info("Running in chroot, ignoring request: %s", name);
else
log_info("Running in chroot, ignoring request.");
return 0;
}
if (verb->flags & VERB_MUST_BE_ROOT) {
r = must_be_root();
if (r < 0)
return r;
}
if (name)
return verb->dispatch(left, argv + optind, userdata);
else {
char* fake[2] = {
(char*) verb->verb,
NULL
};
return verb->dispatch(1, fake, userdata);
}
}
{ "log-priority", required_argument, NULL, 'l' },
{ "stop-exec-queue", no_argument, NULL, 's' },
{ "start-exec-queue", no_argument, NULL, 'S' },
{ "reload", no_argument, NULL, 'R' },
{ "reload-rules", no_argument, NULL, 'R' }, /* alias for -R */
{ "property", required_argument, NULL, 'p' },
{ "env", required_argument, NULL, 'p' }, /* alias for -p */
{ "children-max", required_argument, NULL, 'm' },
{ "ping", no_argument, NULL, ARG_PING },
{ "timeout", required_argument, NULL, 't' },
{ "version", no_argument, NULL, 'V' },
{ "help", no_argument, NULL, 'h' },
{}
};
r = must_be_root();
if (r < 0)
return r;
if (running_in_chroot() > 0) {
log_info("Running in chroot, ignoring request.");
return 0;
}
if (argc <= 1)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
"This command expects one or more options.");
r = udev_ctrl_new(&uctrl);
if (r < 0)
return log_error_errno(r, "Failed to initialize udev control: %m");
