bsd/sys/vsock_domain.h

   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_DOMAIN_H_
  30  #define _VSOCK_DOMAIN_H_
  31  #ifdef  BSD_KERNEL_PRIVATE
  32
  33  #include <sys/queue.h>
  34  #include <sys/vsock_transport.h>
  35
  36 /* VSock Protocol Control Block */
  37
  38 struct vsockpcb {
  39         TAILQ_ENTRY(vsockpcb) all;
  40         LIST_ENTRY(vsockpcb) bound;
  41         struct socket *so;
  42         struct vsock_address local_address;
  43         struct vsock_address remote_address;
  44         struct vsock_transport *transport;
  45         uint32_t fwd_cnt;
  46         uint32_t tx_cnt;
  47         uint32_t peer_buf_alloc;
  48         uint32_t peer_fwd_cnt;
  49         uint32_t last_buf_alloc;
  50         uint32_t last_fwd_cnt;
  51         size_t waiting_send_size;
  52         vsock_gen_t vsock_gencnt;
  53 };
  54
  55 /* VSock Protocol Control Block Info */
  56
  57 struct vsockpcbinfo {
  58         // PCB locking.
  59         lck_attr_t *vsock_lock_attr;
  60         lck_grp_t *vsock_lock_grp;
  61         lck_grp_attr_t *vsock_lock_grp_attr;
  62         lck_rw_t *all_lock;
  63         lck_rw_t *bound_lock;
  64         // PCB lists.
  65         TAILQ_HEAD(, vsockpcb) all;
  66         LIST_HEAD(, vsockpcb) bound;
  67         // Port generation.
  68         uint32_t last_port;
  69         lck_mtx_t port_lock;
  70         // Counts.
  71         uint64_t all_pcb_count;
  72         vsock_gen_t vsock_gencnt;
  73 };
  74
  75 #endif /* BSD_KERNEL_PRIVATE */
  76 #endif /* _VSOCK_DOMAIN_H_ */