projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 2d21ac55 | 1 | /* |
| 3e170ce0 | 2 | * Copyright (c) 2015 Apple Inc. All rights reserved. |
| 2d21ac55 A |
3 | * |
| 4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ | |
| 3e170ce0 | 5 | * |
| 2d21ac55 A |
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. | |
| 3e170ce0 | 14 | * |
| 2d21ac55 A |
15 | * Please obtain a copy of the License at |
| 16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. | |
| 3e170ce0 | 17 | * |
| 2d21ac55 A |
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. | |
| 3e170ce0 | 25 | * |
| 2d21ac55 A |
26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
| 27 | */ | |
| 28 | ||
| 3e170ce0 A |
29 | /* TCP-cache to store and retrieve TCP-related information */ |
| 30 | ||
| 31 | #ifndef _NETINET_TCP_CACHE_H | |
| 32 | #define _NETINET_TCP_CACHE_H | |
| 33 | ||
| 34 | #include <netinet/tcp_var.h> | |
| 35 | #include <netinet/in.h> | |
| 36 | ||
| 4bd07ac2 A |
37 | /* Number of SYN-losses we accept */ |
| 38 | #define TFO_MAX_COOKIE_LOSS 2 | |
| 39 | #define ECN_MAX_SYN_LOSS 2 | |
| 40 | ||
| 41 | #define ECN_MIN_CE_PROBES 10 /* Probes are basically the number of incoming packets */ | |
| 42 | #define ECN_MAX_CE_RATIO 7 /* Ratio is the maximum number of CE-packets we accept per incoming "probe" */ | |
| 43 | ||
| 3e170ce0 A |
44 | extern void tcp_cache_set_cookie(struct tcpcb *tp, u_char *cookie, u_int8_t len); |
| 45 | extern int tcp_cache_get_cookie(struct tcpcb *tp, u_char *cookie, u_int8_t *len); | |
| 46 | extern unsigned int tcp_cache_get_cookie_len(struct tcpcb *tp); | |
| 47 | ||
| 4bd07ac2 | 48 | extern void tcp_heuristic_inc_loss(struct tcpcb *tp, int tfo, int ecn); |
| 3e170ce0 A |
49 | extern void tcp_heuristic_tfo_snd_good(struct tcpcb *tp); |
| 50 | extern void tcp_heuristic_tfo_rcv_good(struct tcpcb *tp); | |
| 51 | extern void tcp_heuristic_tfo_middlebox(struct tcpcb *tp); | |
| 4bd07ac2 A |
52 | extern void tcp_heuristic_ecn_aggressive(struct tcpcb *tp); |
| 53 | extern void tcp_heuristic_reset_loss(struct tcpcb *tp, int tfo, int ecn); | |
| 3e170ce0 A |
54 | extern void tcp_heuristic_tfo_success(struct tcpcb *tp); |
| 55 | extern boolean_t tcp_heuristic_do_tfo(struct tcpcb *tp); | |
| 4bd07ac2 | 56 | extern boolean_t tcp_heuristic_do_ecn(struct tcpcb *tp); |
| 2d21ac55 | 57 | |
| 3e170ce0 | 58 | extern void tcp_cache_init(void); |
| 2d21ac55 | 59 | |
| 3e170ce0 | 60 | #endif /* _NETINET_TCP_CACHE_H */ |
| 2d21ac55 | 61 |