/* * Copyright (c) 2012-2013 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ #ifndef _NETINET_MPTCP_OPT_H_ #define _NETINET_MPTCP_OPT_H_ #ifdef BSD_KERNEL_PRIVATE /* * Try setting up an MPTCP connection by making atleast 3 attempts, * that is 2 retransmissions - needed for Weak WiFi and long delay cellular. * This number must be bumped higher when we are assured that middleboxes * are not the reason for retries. Generally, on weak wifi and cold start * cellular, more than 2 retries are necessary. */ #define MPTCP_CAPABLE_RETRIES (2) __BEGIN_DECLS extern void tcp_do_mptcp_options(struct tcpcb *, u_char *, struct tcphdr *, struct tcpopt *, int); extern unsigned mptcp_setup_syn_opts(struct socket *, int, u_char*, unsigned); extern unsigned mptcp_setup_join_ack_opts(struct tcpcb *, u_char*, unsigned); extern void mptcp_update_dss_send_state(struct mptcb *, u_int64_t); extern void mptcp_send_addaddr_opt(struct tcpcb *, struct mptcp_addaddr_opt *); extern void mptcp_send_remaddr_opt(struct tcpcb *, struct mptcp_remaddr_opt *); extern unsigned int mptcp_setup_opts(struct tcpcb *, int, u_char *, unsigned int, int, int, unsigned int **, u_int8_t **, u_int64_t *, u_int32_t **, boolean_t *); extern void mptcp_update_dss_rcv_state(struct mptcp_dsn_opt *, struct tcpcb *, uint16_t); extern void mptcp_update_rcv_state_f(struct mptcp_dss_ack_opt *, struct tcpcb *, uint16_t); extern void mptcp_update_rcv_state_g(struct mptcp_dss64_ack32_opt *, struct tcpcb *, uint16_t); extern void mptcp_update_rcv_state_meat(struct mptcb *, struct tcpcb *, u_int64_t, u_int32_t, u_int16_t, uint16_t); extern void mptcp_data_ack_rcvd(struct mptcb *, struct tcpcb *, u_int64_t); __END_DECLS #endif /* BSD_KERNEL_PRIVATE */ #endif /* !_NETINET_MPTCP_OPT_H_ */