1*42e22086SApple OSS Distributions /* 2*42e22086SApple OSS Distributions * Copyright (c) 2012-2021 Apple Inc. All rights reserved. 3*42e22086SApple OSS Distributions * 4*42e22086SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5*42e22086SApple OSS Distributions * 6*42e22086SApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*42e22086SApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*42e22086SApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*42e22086SApple OSS Distributions * compliance with the License. The rights granted to you under the License 10*42e22086SApple OSS Distributions * may not be used to create, or enable the creation or redistribution of, 11*42e22086SApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to 12*42e22086SApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any 13*42e22086SApple OSS Distributions * terms of an Apple operating system software license agreement. 14*42e22086SApple OSS Distributions * 15*42e22086SApple OSS Distributions * Please obtain a copy of the License at 16*42e22086SApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file. 17*42e22086SApple OSS Distributions * 18*42e22086SApple OSS Distributions * The Original Code and all software distributed under the License are 19*42e22086SApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20*42e22086SApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21*42e22086SApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22*42e22086SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23*42e22086SApple OSS Distributions * Please see the License for the specific language governing rights and 24*42e22086SApple OSS Distributions * limitations under the License. 25*42e22086SApple OSS Distributions * 26*42e22086SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27*42e22086SApple OSS Distributions */ 28*42e22086SApple OSS Distributions 29*42e22086SApple OSS Distributions #ifndef _NET_FLOWADV_H_ 30*42e22086SApple OSS Distributions #define _NET_FLOWADV_H_ 31*42e22086SApple OSS Distributions 32*42e22086SApple OSS Distributions #ifdef KERNEL_PRIVATE 33*42e22086SApple OSS Distributions #include <sys/types.h> 34*42e22086SApple OSS Distributions #include <sys/queue.h> 35*42e22086SApple OSS Distributions 36*42e22086SApple OSS Distributions #if SKYWALK 37*42e22086SApple OSS Distributions #include <skywalk/os_skywalk.h> 38*42e22086SApple OSS Distributions #endif /* SKYWALK */ 39*42e22086SApple OSS Distributions 40*42e22086SApple OSS Distributions #define FADV_SUCCESS 0 /* success */ 41*42e22086SApple OSS Distributions #define FADV_FLOW_CONTROLLED 1 /* regular flow control */ 42*42e22086SApple OSS Distributions #define FADV_SUSPENDED 2 /* flow control due to suspension */ 43*42e22086SApple OSS Distributions 44*42e22086SApple OSS Distributions struct flowadv { 45*42e22086SApple OSS Distributions int32_t code; /* FADV advisory code */ 46*42e22086SApple OSS Distributions }; 47*42e22086SApple OSS Distributions 48*42e22086SApple OSS Distributions #ifdef BSD_KERNEL_PRIVATE 49*42e22086SApple OSS Distributions struct flowadv_fcentry { 50*42e22086SApple OSS Distributions STAILQ_ENTRY(flowadv_fcentry) fce_link; 51*42e22086SApple OSS Distributions u_int32_t fce_flowsrc_type; /* FLOWSRC values */ 52*42e22086SApple OSS Distributions u_int32_t fce_flowid; 53*42e22086SApple OSS Distributions #if SKYWALK 54*42e22086SApple OSS Distributions flowadv_token_t fce_flowsrc_token; 55*42e22086SApple OSS Distributions flowadv_idx_t fce_flowsrc_fidx; 56*42e22086SApple OSS Distributions struct ifnet *fce_ifp; 57*42e22086SApple OSS Distributions #endif /* SKYWALK */ 58*42e22086SApple OSS Distributions }; 59*42e22086SApple OSS Distributions 60*42e22086SApple OSS Distributions STAILQ_HEAD(flowadv_fclist, flowadv_fcentry); 61*42e22086SApple OSS Distributions 62*42e22086SApple OSS Distributions __BEGIN_DECLS 63*42e22086SApple OSS Distributions 64*42e22086SApple OSS Distributions extern void flowadv_init(void); 65*42e22086SApple OSS Distributions extern struct flowadv_fcentry *flowadv_alloc_entry(int); 66*42e22086SApple OSS Distributions extern void flowadv_free_entry(struct flowadv_fcentry *); 67*42e22086SApple OSS Distributions extern void flowadv_add(struct flowadv_fclist *); 68*42e22086SApple OSS Distributions extern void flowadv_add_entry(struct flowadv_fcentry *); 69*42e22086SApple OSS Distributions extern void flowadv_reap_caches(boolean_t); 70*42e22086SApple OSS Distributions 71*42e22086SApple OSS Distributions __END_DECLS 72*42e22086SApple OSS Distributions 73*42e22086SApple OSS Distributions #endif /* BSD_KERNEL_PRIVATE */ 74*42e22086SApple OSS Distributions #endif /* KERNEL_PRIVATE */ 75*42e22086SApple OSS Distributions #endif /* _NET_FLOWADV_H_ */ 76