1*043036a2SApple OSS Distributions /*
2*043036a2SApple OSS Distributions * Copyright (c) 2000-2021 Apple Inc. All rights reserved.
3*043036a2SApple OSS Distributions *
4*043036a2SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*043036a2SApple OSS Distributions *
6*043036a2SApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code
7*043036a2SApple OSS Distributions * as defined in and that are subject to the Apple Public Source License
8*043036a2SApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in
9*043036a2SApple OSS Distributions * compliance with the License. The rights granted to you under the License
10*043036a2SApple OSS Distributions * may not be used to create, or enable the creation or redistribution of,
11*043036a2SApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to
12*043036a2SApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any
13*043036a2SApple OSS Distributions * terms of an Apple operating system software license agreement.
14*043036a2SApple OSS Distributions *
15*043036a2SApple OSS Distributions * Please obtain a copy of the License at
16*043036a2SApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*043036a2SApple OSS Distributions *
18*043036a2SApple OSS Distributions * The Original Code and all software distributed under the License are
19*043036a2SApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*043036a2SApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*043036a2SApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*043036a2SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*043036a2SApple OSS Distributions * Please see the License for the specific language governing rights and
24*043036a2SApple OSS Distributions * limitations under the License.
25*043036a2SApple OSS Distributions *
26*043036a2SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*043036a2SApple OSS Distributions */
28*043036a2SApple OSS Distributions
29*043036a2SApple OSS Distributions #ifndef _NETINET_TCP_UTILS_H_
30*043036a2SApple OSS Distributions #define _NETINET_TCP_UTILS_H_
31*043036a2SApple OSS Distributions
32*043036a2SApple OSS Distributions #include <kern/mem_acct.h>
33*043036a2SApple OSS Distributions #include <netinet/tcp_var.h>
34*043036a2SApple OSS Distributions
35*043036a2SApple OSS Distributions struct tcp_globals {};
36*043036a2SApple OSS Distributions
37*043036a2SApple OSS Distributions static inline struct tcp_globals *
tcp_get_globals(struct tcpcb * tp)38*043036a2SApple OSS Distributions tcp_get_globals(struct tcpcb *tp)
39*043036a2SApple OSS Distributions {
40*043036a2SApple OSS Distributions #pragma unused(tp)
41*043036a2SApple OSS Distributions return NULL;
42*043036a2SApple OSS Distributions }
43*043036a2SApple OSS Distributions
44*043036a2SApple OSS Distributions static inline uint32_t
tcp_globals_now(struct tcp_globals * globals)45*043036a2SApple OSS Distributions tcp_globals_now(struct tcp_globals *globals)
46*043036a2SApple OSS Distributions {
47*043036a2SApple OSS Distributions #pragma unused(globals)
48*043036a2SApple OSS Distributions return tcp_now;
49*043036a2SApple OSS Distributions }
50*043036a2SApple OSS Distributions
51*043036a2SApple OSS Distributions extern void tcp_ccdbg_control_register(void);
52*043036a2SApple OSS Distributions extern void tcp_ccdbg_trace(struct tcpcb *tp, struct tcphdr *th, int32_t event);
53*043036a2SApple OSS Distributions
54*043036a2SApple OSS Distributions static inline void
tcp_memacct_add(unsigned int size)55*043036a2SApple OSS Distributions tcp_memacct_add(unsigned int size)
56*043036a2SApple OSS Distributions {
57*043036a2SApple OSS Distributions mem_acct_add(tcp_memacct, size);
58*043036a2SApple OSS Distributions }
59*043036a2SApple OSS Distributions
60*043036a2SApple OSS Distributions static inline void
tcp_memacct_sub(unsigned int size)61*043036a2SApple OSS Distributions tcp_memacct_sub(unsigned int size)
62*043036a2SApple OSS Distributions {
63*043036a2SApple OSS Distributions mem_acct_sub(tcp_memacct, size);
64*043036a2SApple OSS Distributions }
65*043036a2SApple OSS Distributions
66*043036a2SApple OSS Distributions static inline int
tcp_memacct_limited(void)67*043036a2SApple OSS Distributions tcp_memacct_limited(void)
68*043036a2SApple OSS Distributions {
69*043036a2SApple OSS Distributions return mem_acct_limited(tcp_memacct);
70*043036a2SApple OSS Distributions }
71*043036a2SApple OSS Distributions
72*043036a2SApple OSS Distributions static inline bool
tcp_memacct_hardlimit(void)73*043036a2SApple OSS Distributions tcp_memacct_hardlimit(void)
74*043036a2SApple OSS Distributions {
75*043036a2SApple OSS Distributions return mem_acct_limited(tcp_memacct) == MEMACCT_HARDLIMIT;
76*043036a2SApple OSS Distributions }
77*043036a2SApple OSS Distributions
78*043036a2SApple OSS Distributions static inline bool
tcp_memacct_softlimit(void)79*043036a2SApple OSS Distributions tcp_memacct_softlimit(void)
80*043036a2SApple OSS Distributions {
81*043036a2SApple OSS Distributions return mem_acct_limited(tcp_memacct) > MEMACCT_PRESOFTLIMIT;
82*043036a2SApple OSS Distributions }
83*043036a2SApple OSS Distributions
84*043036a2SApple OSS Distributions #endif /* _NETINET_TCP_UTILS_H_ */
85