palacios/src/interfaces/vmm_packet.c

   1 /*
   2  * This file is part of the Palacios Virtual Machine Monitor developed
   3  * by the V3VEE Project with funding from the United States National
   4  * Science Foundation and the Department of Energy.
   5  *
   6  * The V3VEE Project is a joint project between Northwestern University
   7  * and the University of New Mexico.  You can find out more at
   8  * http://www.v3vee.org
   9  *
  10  * Copyright (c) 2010, Lei Xia <lxia@cs.northwestern.edu>
  11  * Copyright (c) 2010, The V3VEE Project <http://www.v3vee.org>
  12  * All rights reserved.
  13  *
  14  * Author: Lei Xia <lxia@cs.northwestern.edu>
  15  *
  16  * This is free software.  You are permitted to use,
  17  * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
  18  */
  19 #include <palacios/vmm.h>
  20 #include <palacios/vmm_debug.h>
  21 #include <palacios/vmm_types.h>
  22 #include <palacios/vm_guest.h>
  23 #include <interfaces/vmm_packet.h>
  24
  25 static struct v3_packet_hooks * packet_hooks = 0;
  26
  27 void V3_Init_Packet(struct v3_packet_hooks * hooks) {
  28     packet_hooks = hooks;
  29     PrintDebug("V3 raw packet interface inited\n");
  30
  31     return;
  32 }
  33
  34 struct v3_packet * v3_packet_connect(struct v3_vm_info * vm,
  35                                      const char * host_nic,
  36                                      const char * vm_mac,
  37                                      int (*input)(struct v3_packet * packet, uint8_t * buf, uint32_t len),
  38                                      void * guest_packet_data) {
  39     struct v3_packet * packet = NULL;
  40
  41     V3_ASSERT(packet_hooks != NULL);
  42     V3_ASSERT(packet_hooks->connect != NULL);
  43
  44     packet = V3_Malloc(sizeof(struct v3_packet));
  45
  46     memcpy(packet->dev_mac, vm_mac, ETH_ALEN);
  47     packet->input = input;
  48     packet->guest_packet_data = guest_packet_data;
  49     if(packet_hooks->connect(packet, host_nic, vm->host_priv_data) != 0){
  50         V3_Free(packet);
  51         return NULL;
  52     }
  53
  54     return packet;
  55 }
  56
  57 int v3_packet_send(struct v3_packet * packet, uint8_t * buf, uint32_t len) {
  58     V3_ASSERT(packet_hooks != NULL);
  59     V3_ASSERT(packet_hooks->send != NULL);
  60
  61     return packet_hooks->send(packet, buf, len);
  62 }
  63
  64 void v3_packet_close(struct v3_packet * packet) {
  65     V3_ASSERT(packet_hooks != NULL);
  66     V3_ASSERT(packet_hooks->close != NULL);
  67
  68     packet_hooks->close(packet);
  69     V3_Free(packet);
  70 }
  71
  72