sys/net/if_tuntap.c

189 static int	tun_create_device(struct tuntap_driver *drv, int unit,
306 	struct tuntap_driver			*drv;
381 	struct tuntap_driver *drv;
401 		KASSERT(drvc->drv != NULL,
403 		drv = drvc->drv;
405 		if (strcmp(name, drv->cdevsw.d_name) == 0) {
408 			flags = drv->ident_flags;
412 		if (dev_stdclone(dname, NULL, drv->cdevsw.d_name, &unit) == 1) {
414 			flags = drv->ident_flags;
437 	struct tuntap_driver *drv;
443 		KASSERT(drvc->drv != NULL,
445 		drv = drvc->drv;
446 		if ((tun_flags & TUN_DRIVER_IDENT_MASK) == drv->ident_flags)
447 			return (drv);
497 	struct tuntap_driver *drv;
507 	drv = tuntap_driver_from_flags(tunflags);
508 	if (drv == NULL)
513 		if (alloc_unr_specific(drv->unrhdr, unit) == -1)
516 		unit = alloc_unr(drv->unrhdr);
519 	snprintf(name, IFNAMSIZ, "%s%d", drv->cdevsw.d_name, unit);
523 	i = clone_create(&drv->clones, &drv->cdevsw, &unit, &dev, 0);
526 		i = tun_create_device(drv, unit, NULL, &dev, name);
538 	struct tuntap_driver *drv;
573 	drv = tuntap_driver_from_flags(tunflags);
574 	if (drv == NULL)
578 	i = clone_create(&drv->clones, &drv->cdevsw, &u, dev, 0);
586 		i = tun_create_device(drv, u, cred, dev, name);
645 	struct tuntap_driver *drv;
650 		drv = &tuntap_drivers[i];
653 		drvc->drv = drv;
654 		drvc->cloner = if_clone_advanced(drv->cdevsw.d_name, 0,
655 		    drv->clone_match_fn, drv->clone_create_fn,
656 		    drv->clone_destroy_fn);
682 	struct tuntap_driver *drv;
699 		drv = &tuntap_drivers[i];
700 		delete_unrhdr(drv->unrhdr);
701 		clone_cleanup(&drv->clones);
710 	struct tuntap_driver *drv;
717 		drv = &tuntap_drivers[i];
718 		if (strcmp(ifp->if_dname, drv->cdevsw.d_name) == 0)
719 			return (drv);
728 	struct tuntap_driver *drv;
735 			drv = &tuntap_drivers[i];
736 			clone_setup(&drv->clones);
737 			drv->unrhdr = new_unrhdr(0, IF_MAXUNIT, &tunmtx);
774 tun_create_device(struct tuntap_driver *drv, int unit, struct ucred *cr,
784 	tp->tun_flags = drv->ident_flags;
785 	tp->tun_drv = drv;
790 	args.mda_devsw = &drv->cdevsw;
909 	struct tuntap_driver *drv;
920 	drv = tp->tun_drv;
932 		    drv->cdevsw.d_name, dev2unit(dev));
934 	if_initname(ifp, drv->cdevsw.d_name, dev2unit(dev));