1*aca3beaaSApple OSS Distributions /*
2*aca3beaaSApple OSS Distributions * Copyright (c) 2017-2021 Apple Inc. All rights reserved.
3*aca3beaaSApple OSS Distributions *
4*aca3beaaSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*aca3beaaSApple OSS Distributions *
6*aca3beaaSApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code
7*aca3beaaSApple OSS Distributions * as defined in and that are subject to the Apple Public Source License
8*aca3beaaSApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in
9*aca3beaaSApple OSS Distributions * compliance with the License. The rights granted to you under the License
10*aca3beaaSApple OSS Distributions * may not be used to create, or enable the creation or redistribution of,
11*aca3beaaSApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to
12*aca3beaaSApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any
13*aca3beaaSApple OSS Distributions * terms of an Apple operating system software license agreement.
14*aca3beaaSApple OSS Distributions *
15*aca3beaaSApple OSS Distributions * Please obtain a copy of the License at
16*aca3beaaSApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*aca3beaaSApple OSS Distributions *
18*aca3beaaSApple OSS Distributions * The Original Code and all software distributed under the License are
19*aca3beaaSApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*aca3beaaSApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*aca3beaaSApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*aca3beaaSApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*aca3beaaSApple OSS Distributions * Please see the License for the specific language governing rights and
24*aca3beaaSApple OSS Distributions * limitations under the License.
25*aca3beaaSApple OSS Distributions *
26*aca3beaaSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*aca3beaaSApple OSS Distributions */
28*aca3beaaSApple OSS Distributions
29*aca3beaaSApple OSS Distributions #include <sys/sysctl.h>
30*aca3beaaSApple OSS Distributions
31*aca3beaaSApple OSS Distributions __private_extern__ void
skmem_sysctl_init(void)32*aca3beaaSApple OSS Distributions skmem_sysctl_init(void)
33*aca3beaaSApple OSS Distributions {
34*aca3beaaSApple OSS Distributions // TCP values
35*aca3beaaSApple OSS Distributions skmem_sysctl *sysctls = skmem_get_sysctls_obj(NULL);
36*aca3beaaSApple OSS Distributions if (sysctls) {
37*aca3beaaSApple OSS Distributions sysctls->version = SKMEM_SYSCTL_VERSION;
38*aca3beaaSApple OSS Distributions #define X(type, field, default_value) \
39*aca3beaaSApple OSS Distributions extern struct sysctl_oid sysctl__net_inet_tcp_##field; \
40*aca3beaaSApple OSS Distributions sysctls->tcp.field = *(type*)sysctl__net_inet_tcp_##field.oid_arg1;
41*aca3beaaSApple OSS Distributions SKMEM_SYSCTL_TCP_LIST
42*aca3beaaSApple OSS Distributions #undef X
43*aca3beaaSApple OSS Distributions }
44*aca3beaaSApple OSS Distributions }
45*aca3beaaSApple OSS Distributions
46*aca3beaaSApple OSS Distributions __private_extern__ int
skmem_sysctl_handle_int(__unused struct sysctl_oid * oidp,void * arg1,int arg2,struct sysctl_req * req)47*aca3beaaSApple OSS Distributions skmem_sysctl_handle_int(__unused struct sysctl_oid *oidp, void *arg1,
48*aca3beaaSApple OSS Distributions int arg2, struct sysctl_req *req)
49*aca3beaaSApple OSS Distributions {
50*aca3beaaSApple OSS Distributions int changed = 0;
51*aca3beaaSApple OSS Distributions int result = sysctl_io_number(req, *(int*)arg1, sizeof(int), arg1,
52*aca3beaaSApple OSS Distributions &changed);
53*aca3beaaSApple OSS Distributions if (changed) {
54*aca3beaaSApple OSS Distributions SYSCTL_SKMEM_UPDATE_AT_OFFSET(arg2, *(int*)arg1);
55*aca3beaaSApple OSS Distributions }
56*aca3beaaSApple OSS Distributions return result;
57*aca3beaaSApple OSS Distributions }
58