1 /* 2 * Copyright (c) 2018-2021 Apple Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28 29 #define NETEM_MAX_BATCH_SIZE 32 30 31 __BEGIN_DECLS 32 33 struct kern_pbufpool; 34 35 typedef int (netem_output_func_t)(void *handle, pktsched_pkt_t *pkts, 36 uint32_t n_pkts); 37 38 extern int netem_config(struct netem **ne, const char *name, struct ifnet *ifp, 39 const struct if_netem_params *p, void *output_handle, 40 netem_output_func_t *output_func, uint32_t output_max_batch_size); 41 extern void netem_get_params(struct netem *ne, struct if_netem_params *p); 42 extern void netem_destroy(struct netem *ne); 43 extern int netem_enqueue(struct netem *ne, classq_pkt_t *p, bool *pdrop); 44 45 __END_DECLS 46