2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2020 Microsoft Corp.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice unmodified, this list of conditions, and the following
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 #include <sys/socket.h>
34 #include <sys/socketvar.h>
35 #include <sys/queue.h>
37 #include <dev/hyperv/include/hyperv.h>
38 #include <dev/hyperv/include/vmbus.h>
41 * HyperV Socket Protocols
43 #define HYPERV_SOCK_PROTO_TRANS 1 /* Transport protocol */
45 #define HVADDR_PORT_ANY -1U
46 #define HVADDR_PORT_UNKNOWN -1U
48 #define HVS_LIST_BOUND 0x01
49 #define HVS_LIST_CONNECTED 0x02
50 #define HVS_LIST_ALL (HVS_LIST_BOUND | HVS_LIST_CONNECTED)
54 sa_family_t sa_family;
55 unsigned int hvs_port;
56 unsigned char hvs_zero[sizeof(struct sockaddr) -
58 sizeof(unsigned char) -
59 sizeof(unsigned int)];
62 struct vmpipe_proto_header {
63 uint32_t vmpipe_pkt_type;
64 uint32_t vmpipe_data_size;
67 struct hvs_pkt_header {
68 struct vmbus_chanpkt_hdr chan_pkt_hdr;
69 struct vmpipe_proto_header vmpipe_pkt_hdr;
73 struct socket *so; /* Pointer to socket */
74 struct sockaddr_hvs local_addr;
75 struct sockaddr_hvs remote_addr;
77 struct hyperv_guid vm_srv_id;
78 struct hyperv_guid host_srv_id;
80 struct vmbus_channel *chan;
81 /* Current packet header on rx ring */
82 struct hvs_pkt_header hvs_pkt;
83 /* Available data in receive br in current packet */
84 uint32_t recv_data_len;
85 /* offset in the packet */
86 uint32_t recv_data_off;
88 /* Link lists for global bound and connected sockets */
89 LIST_ENTRY(hvs_pcb) bound_next;
90 LIST_ENTRY(hvs_pcb) connected_next;
93 #define so2hvspcb(so) \
94 ((struct hvs_pcb *)((so)->so_pcb))
95 #define hsvpcb2so(hvspcb) \
96 ((struct socket *)((hvspcb)->so))
98 void hvs_addr_init(struct sockaddr_hvs *, const struct hyperv_guid *);
99 void hvs_trans_init(void);
100 void hvs_trans_close(struct socket *);
101 void hvs_trans_detach(struct socket *);
102 void hvs_trans_abort(struct socket *);
103 int hvs_trans_attach(struct socket *, int, struct thread *);
104 int hvs_trans_bind(struct socket *, struct sockaddr *, struct thread *);
105 int hvs_trans_listen(struct socket *, int, struct thread *);
106 int hvs_trans_accept(struct socket *, struct sockaddr **);
107 int hvs_trans_connect(struct socket *,
108 struct sockaddr *, struct thread *);
109 int hvs_trans_peeraddr(struct socket *, struct sockaddr **);
110 int hvs_trans_sockaddr(struct socket *, struct sockaddr **);
111 int hvs_trans_soreceive(struct socket *, struct sockaddr **,
112 struct uio *, struct mbuf **, struct mbuf **, int *);
113 int hvs_trans_sosend(struct socket *, struct sockaddr *, struct uio *,
114 struct mbuf *, struct mbuf *, int, struct thread *);
115 int hvs_trans_disconnect(struct socket *);
116 int hvs_trans_shutdown(struct socket *);
118 int hvs_trans_lock(void);
119 void hvs_trans_unlock(void);
121 void hvs_remove_socket_from_list(struct socket *, unsigned char);
122 #endif /* _HVSOCK_H */