1*bbb1b6f9SApple OSS Distributions /*
2*bbb1b6f9SApple OSS Distributions * Copyright (c) 2017-2024 Apple Inc. All rights reserved.
3*bbb1b6f9SApple OSS Distributions *
4*bbb1b6f9SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*bbb1b6f9SApple OSS Distributions *
6*bbb1b6f9SApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code
7*bbb1b6f9SApple OSS Distributions * as defined in and that are subject to the Apple Public Source License
8*bbb1b6f9SApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in
9*bbb1b6f9SApple OSS Distributions * compliance with the License. The rights granted to you under the License
10*bbb1b6f9SApple OSS Distributions * may not be used to create, or enable the creation or redistribution of,
11*bbb1b6f9SApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to
12*bbb1b6f9SApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any
13*bbb1b6f9SApple OSS Distributions * terms of an Apple operating system software license agreement.
14*bbb1b6f9SApple OSS Distributions *
15*bbb1b6f9SApple OSS Distributions * Please obtain a copy of the License at
16*bbb1b6f9SApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*bbb1b6f9SApple OSS Distributions *
18*bbb1b6f9SApple OSS Distributions * The Original Code and all software distributed under the License are
19*bbb1b6f9SApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*bbb1b6f9SApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*bbb1b6f9SApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*bbb1b6f9SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*bbb1b6f9SApple OSS Distributions * Please see the License for the specific language governing rights and
24*bbb1b6f9SApple OSS Distributions * limitations under the License.
25*bbb1b6f9SApple OSS Distributions *
26*bbb1b6f9SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*bbb1b6f9SApple OSS Distributions */
28*bbb1b6f9SApple OSS Distributions
29*bbb1b6f9SApple OSS Distributions #include <sys/sysctl.h>
30*bbb1b6f9SApple OSS Distributions
31*bbb1b6f9SApple OSS Distributions __private_extern__ void
skmem_sysctl_init(void)32*bbb1b6f9SApple OSS Distributions skmem_sysctl_init(void)
33*bbb1b6f9SApple OSS Distributions {
34*bbb1b6f9SApple OSS Distributions // TCP values
35*bbb1b6f9SApple OSS Distributions skmem_sysctl *__single sysctls = skmem_get_sysctls_obj(NULL);
36*bbb1b6f9SApple OSS Distributions if (sysctls) {
37*bbb1b6f9SApple OSS Distributions sysctls->version = SKMEM_SYSCTL_VERSION;
38*bbb1b6f9SApple OSS Distributions #define X(type, field, default_value) \
39*bbb1b6f9SApple OSS Distributions extern struct sysctl_oid sysctl__net_inet_tcp_##field; \
40*bbb1b6f9SApple OSS Distributions sysctls->tcp.field = *(type*)sysctl__net_inet_tcp_##field.oid_arg1;
41*bbb1b6f9SApple OSS Distributions SKMEM_SYSCTL_TCP_LIST
42*bbb1b6f9SApple OSS Distributions #undef X
43*bbb1b6f9SApple OSS Distributions }
44*bbb1b6f9SApple OSS Distributions }
45*bbb1b6f9SApple OSS Distributions
46*bbb1b6f9SApple OSS Distributions __private_extern__ int
skmem_sysctl_handle_int(__unused struct sysctl_oid * oidp,void * arg1,int arg2,struct sysctl_req * req)47*bbb1b6f9SApple OSS Distributions skmem_sysctl_handle_int(__unused struct sysctl_oid *oidp, void *arg1,
48*bbb1b6f9SApple OSS Distributions int arg2, struct sysctl_req *req)
49*bbb1b6f9SApple OSS Distributions {
50*bbb1b6f9SApple OSS Distributions int changed = 0;
51*bbb1b6f9SApple OSS Distributions int result = sysctl_io_number(req, *(int*)arg1, sizeof(int), arg1,
52*bbb1b6f9SApple OSS Distributions &changed);
53*bbb1b6f9SApple OSS Distributions if (changed) {
54*bbb1b6f9SApple OSS Distributions SYSCTL_SKMEM_UPDATE_AT_OFFSET(arg2, *(int*)arg1);
55*bbb1b6f9SApple OSS Distributions }
56*bbb1b6f9SApple OSS Distributions return result;
57*bbb1b6f9SApple OSS Distributions }
58