1 | /* |
2 | * Copyright (c) 2020 Apple Inc. All rights reserved. |
3 | * |
4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ |
5 | * |
6 | * This file contains Original Code and/or Modifications of Original Code |
7 | * as defined in and that are subject to the Apple Public Source License |
8 | * Version 2.0 (the 'License'). You may not use this file except in |
9 | * compliance with the License. The rights granted to you under the License |
10 | * may not be used to create, or enable the creation or redistribution of, |
11 | * unlawful or unlicensed copies of an Apple operating system, or to |
12 | * circumvent, violate, or enable the circumvention or violation of, any |
13 | * terms of an Apple operating system software license agreement. |
14 | * |
15 | * Please obtain a copy of the License at |
16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. |
17 | * |
18 | * The Original Code and all software distributed under the License are |
19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
23 | * Please see the License for the specific language governing rights and |
24 | * limitations under the License. |
25 | * |
26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
27 | */ |
28 | |
29 | #ifndef _VSOCK_TRANSPORT_H_ |
30 | #define _VSOCK_TRANSPORT_H_ |
31 | #ifdef KERNEL_PRIVATE |
32 | |
33 | #include <sys/cdefs.h> |
34 | |
35 | __BEGIN_DECLS |
36 | |
37 | #include <sys/queue.h> |
38 | #include <sys/kernel_types.h> |
39 | #include <sys/vsock.h> |
40 | |
41 | #define VSOCK_MAX_PACKET_SIZE 65536 |
42 | |
43 | enum vsock_operation { |
44 | VSOCK_REQUEST = 0, |
45 | VSOCK_RESPONSE = 1, |
46 | VSOCK_PAYLOAD = 2, |
47 | VSOCK_SHUTDOWN = 3, |
48 | VSOCK_SHUTDOWN_RECEIVE = 4, |
49 | VSOCK_SHUTDOWN_SEND = 5, |
50 | VSOCK_RESET = 6, |
51 | VSOCK_CREDIT_UPDATE = 7, |
52 | VSOCK_CREDIT_REQUEST = 8, |
53 | }; |
54 | |
55 | struct vsock_address { |
56 | uint32_t cid; |
57 | uint32_t port; |
58 | }; |
59 | |
60 | struct vsock_transport { |
61 | void *provider; |
62 | int (*get_cid)(void *provider, uint32_t *cid); |
63 | int (*attach_socket)(void *provider); |
64 | int (*detach_socket)(void *provider); |
65 | int (*put_message)(void *provider, struct vsock_address src, struct vsock_address dst, |
66 | enum vsock_operation op, uint32_t buf_alloc, uint32_t fwd_cnt, mbuf_t m); |
67 | }; |
68 | |
69 | extern int vsock_add_transport(struct vsock_transport *transport); |
70 | extern int vsock_remove_transport(struct vsock_transport *transport); |
71 | extern int vsock_reset_transport(struct vsock_transport *transport); |
72 | extern int vsock_put_message(struct vsock_address src, struct vsock_address dst, |
73 | enum vsock_operation op, uint32_t buf_alloc, uint32_t fwd_cnt, mbuf_t m); |
74 | |
75 | __END_DECLS |
76 | |
77 | #endif /* KERNEL_PRIVATE */ |
78 | #endif /* _VSOCK_TRANSPORT_H_ */ |
79 | |