__door_handle
struct __door_handle;
struct __door_handle *smb_kshare_door_init(int);
void smb_kshare_door_fini(struct __door_handle *);
int smb_kshare_upcall(struct __door_handle *, void *, boolean_t);
struct __door_handle *sv_lmshrd;
struct __door_handle *sv_kdoor_hd;
struct __door_handle; /* <sys/door.h> */
struct __door_handle;
typedef struct __door_handle *door_handle_t; /* opaque kernel door handle */