7b42f6fae2
* Add fib6_lookup_nh_ext(). * Rename union structures: nhop64_basic -> nhopu_basic, nhop64_extended -> nhopu_extended
131 lines
4.8 KiB
C
131 lines
4.8 KiB
C
/*-
|
|
* Copyright (c) 2012 Chelsio Communications, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _NETINET_TOE_H_
|
|
#define _NETINET_TOE_H_
|
|
|
|
#ifndef _KERNEL
|
|
#error "no user-serviceable parts inside"
|
|
#endif
|
|
|
|
struct tcpopt;
|
|
struct tcphdr;
|
|
struct in_conninfo;
|
|
|
|
struct toedev {
|
|
TAILQ_ENTRY(toedev) link; /* glue for toedev_list */
|
|
void *tod_softc; /* TOE driver private data */
|
|
|
|
/*
|
|
* Active open. If a failure occurs, it is reported back by the driver
|
|
* via toe_connect_failed.
|
|
*/
|
|
int (*tod_connect)(struct toedev *, struct socket *, struct rtentry *,
|
|
struct sockaddr *);
|
|
|
|
/* Passive open. */
|
|
int (*tod_listen_start)(struct toedev *, struct tcpcb *);
|
|
int (*tod_listen_stop)(struct toedev *, struct tcpcb *);
|
|
|
|
/*
|
|
* The kernel uses this routine to pass on any frame it receives for an
|
|
* offloaded connection to the TOE driver. This is an unusual event.
|
|
*/
|
|
void (*tod_input)(struct toedev *, struct tcpcb *, struct mbuf *);
|
|
|
|
/*
|
|
* This is called by the kernel during pru_rcvd for an offloaded TCP
|
|
* connection and provides an opportunity for the TOE driver to manage
|
|
* its rx window and credits.
|
|
*/
|
|
void (*tod_rcvd)(struct toedev *, struct tcpcb *);
|
|
|
|
/*
|
|
* Transmit routine. The kernel calls this to have the TOE driver
|
|
* evaluate whether there is data to be transmitted, and transmit it.
|
|
*/
|
|
int (*tod_output)(struct toedev *, struct tcpcb *);
|
|
|
|
/* Immediate teardown: send RST to peer. */
|
|
int (*tod_send_rst)(struct toedev *, struct tcpcb *);
|
|
|
|
/* Initiate orderly disconnect by sending FIN to the peer. */
|
|
int (*tod_send_fin)(struct toedev *, struct tcpcb *);
|
|
|
|
/* Called to indicate that the kernel is done with this TCP PCB. */
|
|
void (*tod_pcb_detach)(struct toedev *, struct tcpcb *);
|
|
|
|
/*
|
|
* The kernel calls this once it has information about an L2 entry that
|
|
* the TOE driver enquired about previously (via toe_l2_resolve).
|
|
*/
|
|
void (*tod_l2_update)(struct toedev *, struct ifnet *,
|
|
struct sockaddr *, uint8_t *, uint16_t);
|
|
|
|
/* XXX. Route has been redirected. */
|
|
void (*tod_route_redirect)(struct toedev *, struct ifnet *,
|
|
struct rtentry *, struct rtentry *);
|
|
|
|
/* Syncache interaction. */
|
|
void (*tod_syncache_added)(struct toedev *, void *);
|
|
void (*tod_syncache_removed)(struct toedev *, void *);
|
|
int (*tod_syncache_respond)(struct toedev *, void *, struct mbuf *);
|
|
void (*tod_offload_socket)(struct toedev *, void *, struct socket *);
|
|
|
|
/* TCP socket option */
|
|
void (*tod_ctloutput)(struct toedev *, struct tcpcb *, int, int);
|
|
};
|
|
|
|
#include <sys/eventhandler.h>
|
|
typedef void (*tcp_offload_listen_start_fn)(void *, struct tcpcb *);
|
|
typedef void (*tcp_offload_listen_stop_fn)(void *, struct tcpcb *);
|
|
EVENTHANDLER_DECLARE(tcp_offload_listen_start, tcp_offload_listen_start_fn);
|
|
EVENTHANDLER_DECLARE(tcp_offload_listen_stop, tcp_offload_listen_stop_fn);
|
|
|
|
void init_toedev(struct toedev *);
|
|
int register_toedev(struct toedev *);
|
|
int unregister_toedev(struct toedev *);
|
|
|
|
/*
|
|
* General interface for looking up L2 information for an IP address. If an
|
|
* answer is not available right away then the TOE driver's tod_l2_update will
|
|
* be called later.
|
|
*/
|
|
int toe_l2_resolve(struct toedev *, struct ifnet *, struct sockaddr *,
|
|
uint8_t *, uint16_t *);
|
|
|
|
void toe_connect_failed(struct toedev *, struct inpcb *, int);
|
|
|
|
void toe_syncache_add(struct in_conninfo *, struct tcpopt *, struct tcphdr *,
|
|
struct inpcb *, void *, void *);
|
|
int toe_syncache_expand(struct in_conninfo *, struct tcpopt *, struct tcphdr *,
|
|
struct socket **);
|
|
|
|
int toe_4tuple_check(struct in_conninfo *, struct tcphdr *, struct ifnet *);
|
|
#endif
|