1 /* 2 * vmnet_int.h 3 * 4 * Copyright(c) 2022 Vladislav Yaroshchuk <vladislav.yaroshchuk@jetbrains.com> 5 * 6 * This work is licensed under the terms of the GNU GPL, version 2 or later. 7 * See the COPYING file in the top-level directory. 8 * 9 */ 10 #ifndef VMNET_INT_H 11 #define VMNET_INT_H 12 13 #include "vmnet_int.h" 14 #include "clients.h" 15 16 #include <vmnet/vmnet.h> 17 #include <dispatch/dispatch.h> 18 19 /** 20 * From vmnet.framework documentation 21 * 22 * Each read/write call allows up to 200 packets to be 23 * read or written for a maximum of 256KB. 24 * 25 * Each packet written should be a complete 26 * ethernet frame. 27 * 28 * https://developer.apple.com/documentation/vmnet 29 */ 30 #define VMNET_PACKETS_LIMIT 200 31 32 typedef struct VmnetState { 33 NetClientState nc; 34 interface_ref vmnet_if; 35 36 uint64_t mtu; 37 uint64_t max_packet_size; 38 39 dispatch_queue_t if_queue; 40 41 QEMUBH *send_bh; 42 43 struct vmpktdesc packets_buf[VMNET_PACKETS_LIMIT]; 44 int packets_send_current_pos; 45 int packets_send_end_pos; 46 47 struct iovec iov_buf[VMNET_PACKETS_LIMIT]; 48 } VmnetState; 49 50 const char *vmnet_status_map_str(vmnet_return_t status); 51 52 int vmnet_if_create(NetClientState *nc, 53 xpc_object_t if_desc, 54 Error **errp); 55 56 ssize_t vmnet_receive_common(NetClientState *nc, 57 const uint8_t *buf, 58 size_t size); 59 60 void vmnet_cleanup_common(NetClientState *nc); 61 62 #endif /* VMNET_INT_H */ 63