diff --git a/src/login/logind-dbus.c b/src/login/logind-dbus.c index a8c1b71e7e7..07cb2571518 100644 --- a/src/login/logind-dbus.c +++ b/src/login/logind-dbus.c @@ -41,6 +41,7 @@ #include "mkdir.h" #include "path-util.h" #include "process-util.h" +#include "cgroup-util.h" #include "selinux-util.h" #include "sleep-config.h" #include "special.h" @@ -658,6 +659,7 @@ static int method_list_inhibitors(sd_bus_message *message, void *userdata, sd_bu static int method_create_session(sd_bus_message *message, void *userdata, sd_bus_error *error) { const char *service, *type, *class, *cseat, *tty, *display, *remote_user, *remote_host, *desktop; uint32_t audit_id = 0; + _cleanup_free_ char *unit = NULL; _cleanup_free_ char *id = NULL; Session *session = NULL; Manager *m = userdata; @@ -787,8 +789,15 @@ static int method_create_session(sd_bus_message *message, void *userdata, sd_bus return r; } - r = manager_get_session_by_pid(m, leader, NULL); - if (r > 0) + /* + * Check if we are already in a logind session. Or if we are in user@.service + * which is a special PAM session that avoids creating a logind session. + */ + r = cg_pid_get_unit(leader, &unit); + if (r < 0) + return r; + if (hashmap_get(m->session_units, unit) || + hashmap_get(m->user_units, unit)) return sd_bus_error_setf(error, BUS_ERROR_SESSION_BUSY, "Already running in a session"); /*