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