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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_ */ |