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
33struct kern_pbufpool;
34
35typedef int (netem_output_func_t)(void *handle, pktsched_pkt_t *pkts,
36 uint32_t n_pkts);
37
38extern 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);
41extern void netem_get_params(struct netem *ne, struct if_netem_params *p);
42extern void netem_destroy(struct netem *ne);
43extern int netem_enqueue(struct netem *ne, classq_pkt_t *p, bool *pdrop);
44
45__END_DECLS
46