#include <errno.h>
#include <signal.h>
+#include <unistd.h>
#include "unit.h"
#include "target.h"
#include "log.h"
#include "dbus-target.h"
#include "special.h"
+#include "unit-name.h"
static const UnitActiveState state_translation_table[_TARGET_STATE_MAX] = {
[TARGET_DEAD] = UNIT_INACTIVE,
target_state_to_string(old_state),
target_state_to_string(state));
- unit_notify(UNIT(t), state_translation_table[old_state], state_translation_table[state]);
+ unit_notify(UNIT(t), state_translation_table[old_state], state_translation_table[state], true);
}
static int target_add_default_dependencies(Target *t) {
Unit *other;
int r;
+ assert(t);
+
/* Imply ordering for requirement dependencies on target
* units. Note that when the user created a contradicting
* ordering manually we won't add anything in here to make
* sure we don't create a loop. */
SET_FOREACH(other, t->meta.dependencies[UNIT_REQUIRES], i)
- if (!set_get(t->meta.dependencies[UNIT_BEFORE], other))
- if ((r = unit_add_dependency(UNIT(t), UNIT_AFTER, other, true)) < 0)
- return r;
+ if ((r = unit_add_default_target_dependency(other, UNIT(t))) < 0)
+ return r;
+
SET_FOREACH(other, t->meta.dependencies[UNIT_REQUIRES_OVERRIDABLE], i)
- if (!set_get(t->meta.dependencies[UNIT_BEFORE], other))
- if ((r = unit_add_dependency(UNIT(t), UNIT_AFTER, other, true)) < 0)
- return r;
+ if ((r = unit_add_default_target_dependency(other, UNIT(t))) < 0)
+ return r;
+
SET_FOREACH(other, t->meta.dependencies[UNIT_WANTS], i)
- if (!set_get(t->meta.dependencies[UNIT_BEFORE], other))
- if ((r = unit_add_dependency(UNIT(t), UNIT_AFTER, other, true)) < 0)
+ if ((r = unit_add_default_target_dependency(other, UNIT(t))) < 0)
+ return r;
+
+ /* Make sure targets are unloaded on shutdown */
+ return unit_add_dependency_by_name(UNIT(t), UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
+}
+
+static int target_add_getty_dependencies(Target *t) {
+ char *n, *active;
+ int r;
+
+ assert(t);
+
+ if (!unit_has_name(UNIT(t), SPECIAL_GETTY_TARGET))
+ return 0;
+
+ if (read_one_line_file("/sys/class/tty/console/active", &active) >= 0) {
+ const char *tty;
+
+ truncate_nl(active);
+ if ((tty = strrchr(active, ' ')))
+ tty ++;
+ else
+ tty = active;
+
+ /* Automatically add in a serial getty on the kernel
+ * console */
+ if (!tty_is_vc(tty)) {
+
+ /* We assume that gettys on virtual terminals are
+ * started via manual configuration and do this magic
+ * only for non-VC terminals. */
+
+ log_debug("Automatically adding serial getty for /dev/%s", tty);
+ if (!(n = unit_name_replace_instance(SPECIAL_SERIAL_GETTY_SERVICE, tty))) {
+ free(active);
+ return -ENOMEM;
+ }
+
+ r = unit_add_two_dependencies_by_name(UNIT(t), UNIT_AFTER, UNIT_WANTS, n, NULL, true);
+ free(n);
+
+ if (r < 0) {
+ free(active);
return r;
+ }
+ }
+
+ free(active);
+ }
+
+ /* Automatically add in a serial getty on the first
+ * virtualizer console */
+ if (access("/sys/class/tty/hvc0", F_OK) == 0) {
+ log_debug("Automatic adding serial getty for hvc0");
+ if (!(n = unit_name_replace_instance(SPECIAL_SERIAL_GETTY_SERVICE, "hvc0")))
+ return -ENOMEM;
+
+ r = unit_add_two_dependencies_by_name(UNIT(t), UNIT_AFTER, UNIT_WANTS, n, NULL, true);
+ free(n);
+
+ if (r < 0)
+ return r;
+ }
return 0;
}
if (u->meta.default_dependencies)
if ((r = target_add_default_dependencies(t)) < 0)
return r;
+
+ if ((r = target_add_getty_dependencies(t)) < 0)
+ return r;
}
return 0;
.active_state = target_active_state,
.sub_state_to_string = target_sub_state_to_string,
+ .bus_interface = "org.freedesktop.systemd1.Target",
.bus_message_handler = bus_target_message_handler
};