Function iflib_clone_register

freebsd/net/iflib_clone.c:247–291

}

if_pseudo_t
iflib_clone_register(if_shared_ctx_t sctx)
{
	if_pseudo_t ip;

	if (sctx->isc_name == NULL) {
		printf("iflib_clone_register failed - shared_ctx needs to have a device name\n");
		return (NULL);
	}
	if (iflib_ip_lookup(sctx->isc_name) != NULL) {
		printf("iflib_clone_register failed - shared_ctx %s alread registered\n",
			   sctx->isc_name);
		return (NULL);
	}
	ip = malloc(sizeof(*ip), M_IFLIB, M_WAITOK|M_ZERO);
	ip->ip_sctx = sctx;
	ip->ip_dc = devclass_create(sctx->isc_name);
	if (ip->ip_dc == NULL)
		goto fail_clone;
	/* XXX --- we can handle clone_advanced later */
	ip->ip_ifc  = if_clone_simple(sctx->isc_name, iflib_clone_create, iflib_clone_destroy, 0);
	if (ip->ip_ifc == NULL) {
		printf("clone_simple failed -- cloned %s  devices will not be available\n", sctx->isc_name);
		goto fail_clone;
	}
	ip->ip_lladdr_tag = EVENTHANDLER_REGISTER(iflladdr_event,
											 iflib_iflladdr, NULL, EVENTHANDLER_PRI_ANY);
	if (ip->ip_lladdr_tag == NULL)
		goto fail_addr;
	ip->ip_detach_tag = EVENTHANDLER_REGISTER(ifnet_departure_event,
											 iflib_ifdetach, NULL, EVENTHANDLER_PRI_ANY);

	if (ip->ip_detach_tag == NULL)
		goto fail_depart;

	iflib_ip_insert(ip);
	return (ip);
 fail_depart:
	EVENTHANDLER_DEREGISTER(iflladdr_event, ip->ip_lladdr_tag);
 fail_addr:
	if_clone_detach(ip->ip_ifc);
 fail_clone:
	free(ip, M_IFLIB);
	return (NULL);
}

void
iflib_clone_deregister(if_pseudo_t ip)