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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2020 Microsoft Corp.
* 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 unmodified, 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 ``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 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 _HVSOCK_H
#define _HVSOCK_H
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/queue.h>
#include <dev/hyperv/include/hyperv.h>
#include <dev/hyperv/include/vmbus.h>
/*
* HyperV Socket Protocols
*/
#define HYPERV_SOCK_PROTO_TRANS 1 /* Transport protocol */
#define HVADDR_PORT_ANY -1U
#define HVADDR_PORT_UNKNOWN -1U
#define HVS_LIST_BOUND 0x01
#define HVS_LIST_CONNECTED 0x02
#define HVS_LIST_ALL (HVS_LIST_BOUND | HVS_LIST_CONNECTED)
struct sockaddr_hvs {
unsigned char sa_len;
sa_family_t sa_family;
unsigned int hvs_port;
unsigned char hvs_zero[sizeof(struct sockaddr) -
sizeof(sa_family_t) -
sizeof(unsigned char) -
sizeof(unsigned int)];
};
struct vmpipe_proto_header {
uint32_t vmpipe_pkt_type;
uint32_t vmpipe_data_size;
} __packed;
struct hvs_pkt_header {
struct vmbus_chanpkt_hdr chan_pkt_hdr;
struct vmpipe_proto_header vmpipe_pkt_hdr;
} __packed;
struct hvs_pcb {
struct socket *so; /* Pointer to socket */
struct sockaddr_hvs local_addr;
struct sockaddr_hvs remote_addr;
struct hyperv_guid vm_srv_id;
struct hyperv_guid host_srv_id;
struct vmbus_channel *chan;
/* Current packet header on rx ring */
struct hvs_pkt_header hvs_pkt;
/* Available data in receive br in current packet */
uint32_t recv_data_len;
/* offset in the packet */
uint32_t recv_data_off;
bool rb_init;
/* Link lists for global bound and connected sockets */
LIST_ENTRY(hvs_pcb) bound_next;
LIST_ENTRY(hvs_pcb) connected_next;
};
#define so2hvspcb(so) \
((struct hvs_pcb *)((so)->so_pcb))
#define hsvpcb2so(hvspcb) \
((struct socket *)((hvspcb)->so))
void hvs_addr_init(struct sockaddr_hvs *, const struct hyperv_guid *);
void hvs_trans_init(void);
void hvs_trans_close(struct socket *);
void hvs_trans_detach(struct socket *);
void hvs_trans_abort(struct socket *);
int hvs_trans_attach(struct socket *, int, struct thread *);
int hvs_trans_bind(struct socket *, struct sockaddr *, struct thread *);
int hvs_trans_listen(struct socket *, int, struct thread *);
int hvs_trans_accept(struct socket *, struct sockaddr **);
int hvs_trans_connect(struct socket *,
struct sockaddr *, struct thread *);
int hvs_trans_peeraddr(struct socket *, struct sockaddr **);
int hvs_trans_sockaddr(struct socket *, struct sockaddr **);
int hvs_trans_soreceive(struct socket *, struct sockaddr **,
struct uio *, struct mbuf **, struct mbuf **, int *);
int hvs_trans_sosend(struct socket *, struct sockaddr *, struct uio *,
struct mbuf *, struct mbuf *, int, struct thread *);
int hvs_trans_disconnect(struct socket *);
int hvs_trans_shutdown(struct socket *);
int hvs_trans_lock(void);
void hvs_trans_unlock(void);
void hvs_remove_socket_from_list(struct socket *, unsigned char);
#endif /* _HVSOCK_H */
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