1 | /* |
2 | * Copyright (c) 2017-2021 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 | #include <sys/sysctl.h> |
30 | |
31 | __private_extern__ void |
32 | skmem_sysctl_init(void) |
33 | { |
34 | // TCP values |
35 | skmem_sysctl *sysctls = skmem_get_sysctls_obj(NULL); |
36 | if (sysctls) { |
37 | sysctls->version = SKMEM_SYSCTL_VERSION; |
38 | #define X(type, field, default_value) \ |
39 | extern struct sysctl_oid sysctl__net_inet_tcp_##field; \ |
40 | sysctls->tcp.field = *(type*)sysctl__net_inet_tcp_##field.oid_arg1; |
41 | SKMEM_SYSCTL_TCP_LIST |
42 | #undef X |
43 | } |
44 | } |
45 | |
46 | __private_extern__ int |
47 | skmem_sysctl_handle_int(__unused struct sysctl_oid *oidp, void *arg1, |
48 | int arg2, struct sysctl_req *req) |
49 | { |
50 | int changed = 0; |
51 | int result = sysctl_io_number(req, bigValue: *(int*)arg1, valueSize: sizeof(int), pValue: arg1, |
52 | changed: &changed); |
53 | if (changed) { |
54 | SYSCTL_SKMEM_UPDATE_AT_OFFSET(arg2, *(int*)arg1); |
55 | } |
56 | return result; |
57 | } |
58 | |