1*43a90889SApple OSS Distributions /*
2*43a90889SApple OSS Distributions * Copyright (c) 2017-2024 Apple Inc. All rights reserved.
3*43a90889SApple OSS Distributions *
4*43a90889SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*43a90889SApple OSS Distributions *
6*43a90889SApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code
7*43a90889SApple OSS Distributions * as defined in and that are subject to the Apple Public Source License
8*43a90889SApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in
9*43a90889SApple OSS Distributions * compliance with the License. The rights granted to you under the License
10*43a90889SApple OSS Distributions * may not be used to create, or enable the creation or redistribution of,
11*43a90889SApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to
12*43a90889SApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any
13*43a90889SApple OSS Distributions * terms of an Apple operating system software license agreement.
14*43a90889SApple OSS Distributions *
15*43a90889SApple OSS Distributions * Please obtain a copy of the License at
16*43a90889SApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*43a90889SApple OSS Distributions *
18*43a90889SApple OSS Distributions * The Original Code and all software distributed under the License are
19*43a90889SApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*43a90889SApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*43a90889SApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*43a90889SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*43a90889SApple OSS Distributions * Please see the License for the specific language governing rights and
24*43a90889SApple OSS Distributions * limitations under the License.
25*43a90889SApple OSS Distributions *
26*43a90889SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*43a90889SApple OSS Distributions */
28*43a90889SApple OSS Distributions
29*43a90889SApple OSS Distributions #include <sys/sysctl.h>
30*43a90889SApple OSS Distributions
31*43a90889SApple OSS Distributions __private_extern__ void
skmem_sysctl_init(void)32*43a90889SApple OSS Distributions skmem_sysctl_init(void)
33*43a90889SApple OSS Distributions {
34*43a90889SApple OSS Distributions // TCP values
35*43a90889SApple OSS Distributions skmem_sysctl *__single sysctls = skmem_get_sysctls_obj(NULL);
36*43a90889SApple OSS Distributions if (sysctls) {
37*43a90889SApple OSS Distributions sysctls->version = SKMEM_SYSCTL_VERSION;
38*43a90889SApple OSS Distributions #define X(type, field, default_value) \
39*43a90889SApple OSS Distributions extern struct sysctl_oid sysctl__net_inet_tcp_##field; \
40*43a90889SApple OSS Distributions sysctls->tcp.field = *(type*)sysctl__net_inet_tcp_##field.oid_arg1;
41*43a90889SApple OSS Distributions SKMEM_SYSCTL_TCP_LIST
42*43a90889SApple OSS Distributions #undef X
43*43a90889SApple OSS Distributions }
44*43a90889SApple OSS Distributions }
45*43a90889SApple OSS Distributions
46*43a90889SApple OSS Distributions __private_extern__ int
skmem_sysctl_handle_int(__unused struct sysctl_oid * oidp,void * arg1,int arg2,struct sysctl_req * req)47*43a90889SApple OSS Distributions skmem_sysctl_handle_int(__unused struct sysctl_oid *oidp, void *arg1,
48*43a90889SApple OSS Distributions int arg2, struct sysctl_req *req)
49*43a90889SApple OSS Distributions {
50*43a90889SApple OSS Distributions int changed = 0;
51*43a90889SApple OSS Distributions int result = sysctl_io_number(req, *(int*)arg1, sizeof(int), arg1,
52*43a90889SApple OSS Distributions &changed);
53*43a90889SApple OSS Distributions if (changed) {
54*43a90889SApple OSS Distributions SYSCTL_SKMEM_UPDATE_AT_OFFSET(arg2, *(int*)arg1);
55*43a90889SApple OSS Distributions }
56*43a90889SApple OSS Distributions return result;
57*43a90889SApple OSS Distributions }
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