smb_t2_init
error = smb_t2_init(t2p, layer, setup, scred);
int smb_t2_init(struct smb_t2rq *rqp, struct smb_connobj *layer, u_short setup,
error = smb_t2_init(t2p, SSTOCP(ssp), dp->ioc_setup[0], scred);