palacios/include/palacios/vmm_socket.h

   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) 2008, Jack Lange <jarusl@cs.northwestern.edu>
  11  * Copyright (c) 2008, The V3VEE Project <http://www.v3vee.org>
  12  * All rights reserved.
  13  *
  14  * Author: Jack Lange <jarusl@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
  20
  21 #ifndef __VMM_SOCKET_H__
  22 #define __VMM_SOCKET_H__
  23
  24 #include <palacios/vmm.h>
  25
  26 #define V3_SOCK void *
  27
  28 #ifdef __V3VEE__
  29
  30 #define V3_Create_UDP_Socket() ({                       \
  31       extern struct v3_socket_hooks * sock_hooks;       \
  32       V3_SOCK sock = 0;                                 \
  33       if ((sock_hooks) && (sock_hooks)->udp_socket) {   \
  34         sock = (sock_hooks)->udp_socket(0,0);           \
  35       }                                                 \
  36       sock;                                             \
  37     })
  38
  39
  40
  41 #define V3_Create_TCP_Socket() ({                       \
  42       extern struct v3_socket_hooks * sock_hooks;       \
  43       V3_SOCK sock = 0;                                 \
  44       if ((sock_hooks) && (sock_hooks)->tcp_socket) {   \
  45         sock = (sock_hooks)->tcp_socket(0,0);           \
  46       }                                                 \
  47       sock;                                             \
  48     })
  49
  50
  51 #define V3_Close_Socket(sock) \
  52   do {                                                  \
  53     extern struct v3_socket_hooks * sock_hooks;         \
  54     if ((sock_hooks) && (sock_hooks)->close) {          \
  55       (sock_hooks)->close(sock);                        \
  56     }                                                   \
  57   } while (0);
  58
  59
  60
  61 #define V3_Bind_Socket(sock, port) ({                           \
  62       extern struct v3_socket_hooks * sock_hooks;               \
  63       int ret = -1;                                             \
  64       if ((sock_hooks) && (sock_hooks)->bind) {                 \
  65         ret = (sock_hooks)->bind(sock, port);                   \
  66       }                                                         \
  67       ret;                                                      \
  68     })
  69
  70
  71 #define V3_Accept_Socket() (-1)
  72 #define V3_Select_Socket() (-1)
  73
  74
  75
  76 #define V3_Connect_To_IP(sock, ip, port) ({                     \
  77       extern struct v3_socket_hooks * sock_hooks;               \
  78       int ret = -1;                                             \
  79       if ((sock_hooks) && (sock_hooks)->connect_to_ip) {        \
  80         ret = (sock_hooks)->connect_to_ip(sock, ip, port);      \
  81       }                                                         \
  82       ret;                                                      \
  83     })
  84
  85
  86 #define V3_Connect_To_Host(sock, hostname, port) ({                     \
  87       extern struct v3_socket_hooks * sock_hooks;                       \
  88       int ret = -1;                                                     \
  89       if ((sock_hooks) && (sock_hooks)->connect_to_host) {              \
  90         ret = (sock_hooks)->connect_to_host(sock, hostname, port);      \
  91       }                                                                 \
  92       ret;                                                              \
  93     })
  94
  95
  96 #define V3_Send(sock, buf, len) ({                              \
  97       extern struct v3_socket_hooks * sock_hooks;               \
  98       int ret = -1;                                             \
  99       if ((sock_hooks) && (sock_hooks)->send) {                 \
 100         ret = (sock_hooks)->send(sock, buf, len);               \
 101       }                                                         \
 102       ret;                                                      \
 103     })
 104
 105 #define V3_Recv(sock, buf, len) ({                              \
 106       extern struct v3_socket_hooks * sock_hooks;               \
 107       int ret = -1;                                             \
 108       if ((sock_hooks) && (sock_hooks)->recv) {                 \
 109         ret = (sock_hooks)->recv(sock, buf, len);               \
 110       }                                                         \
 111       ret;                                                      \
 112     })
 113
 114 #define V3_SendTo_Host(sock, hostname, port, buf, len) ({               \
 115       extern struct v3_socket_hooks * sock_hooks;                       \
 116       int ret = -1;                                                     \
 117       if ((sock_hooks) && (sock_hooks)->sendto_host) {                  \
 118         ret = (sock_hooks)->sendto_host(sock, hostname, port, buf, len); \
 119       }                                                                 \
 120       ret;                                                              \
 121     })
 122
 123
 124 #define V3_SendTo_IP(sock, ip, port, buf, len) ({                       \
 125       extern struct v3_socket_hooks * sock_hooks;                       \
 126       int ret = -1;                                                     \
 127       if ((sock_hooks) && (sock_hooks)->sendto_ip) {                    \
 128         ret = (sock_hooks)->sendto_ip(sock, ip, port, buf, len);        \
 129       }                                                                 \
 130       ret;                                                              \
 131     })
 132
 133
 134 #define V3_RecvFrom_Host(sock, hostname, port, buf, len) ({             \
 135       extern struct v3_socket_hooks * sock_hooks;                       \
 136       int ret = -1;                                                     \
 137       if ((sock_hooks) && (sock_hooks)->recvfrom_host) {                \
 138         ret = (sock_hooks)->recvfrom_host(sock, hostname, port, buf, len); \
 139       }                                                                 \
 140       ret;                                                              \
 141     })
 142
 143
 144 #define V3_RecvFrom_IP(sock, ip, port, buf, len) ({                     \
 145       extern struct v3_socket_hooks * sock_hooks;                       \
 146       int ret = -1;                                                     \
 147       if ((sock_hooks) && (sock_hooks)->recvfrom_ip) {                  \
 148         ret = (sock_hooks)->recvfrom_ip(sock, ip, port, buf, len);      \
 149       }                                                                 \
 150       ret;                                                              \
 151     })
 152
 153
 154 #endif
 155
 156
 157 struct v3_timeval {
 158   long    tv_sec;         /* seconds */
 159   long    tv_usec;        /* and microseconds */
 160 };
 161
 162 struct v3_sock_entry {
 163   V3_SOCK sock;
 164   unsigned int is_set;
 165   struct v3_sock_set * next;
 166 };
 167
 168 struct v3_sock_set {
 169   unsigned int num_socks;
 170   struct v3_sock_entry * socks;
 171 };
 172
 173
 174 void v3_init_sock_set(struct v3_sock_set * sock_set);
 175
 176 void v3_set_sock(struct v3_sock_set * sock_set, V3_SOCK sock); // adds socket to the sockset
 177 void v3_clr_sock(struct v3_sock_set * sock_set, V3_SOCK sock); // deletes socket from sockset
 178 int v3_isset_sock(struct v3_sock_set * sock_set, V3_SOCK sock);  // checks is_set vairable
 179 void v3_zero_sockset(struct v3_sock_set * sock_set);    // clears all is_set variables.
 180
 181
 182
 183 #define v3_foreach_sock(/* (struct v3_sock_set *) */ sock_set, /* (struct v3_sock_entry *) */ iter) \
 184        for (iter = sock_set->socks; iter != NULL; iter = iter->next)
 185
 186
 187
 188 struct v3_socket_hooks {
 189   // Socket creation routines
 190   V3_SOCK (*tcp_socket)(const int bufsize, const int nodelay, const int nonblocking);
 191   V3_SOCK (*udp_socket)(const int bufsize, const int nonblocking);
 192
 193   // Socket Destruction
 194   void (*close)(V3_SOCK sock);
 195
 196   // Network Server Calls
 197   int (*bind_socket)(const V3_SOCK sock, const int port);
 198
 199   int (*accept)(const V3_SOCK const sock, unsigned int * remote_ip);
 200   // This going to suck
 201   int (*select)(struct v3_sock_set * rset, \
 202                 struct v3_sock_set * wset, \
 203                 struct v3_sock_set * eset, \
 204                 struct v3_timeval tv);
 205
 206   // Connect calls
 207   int (*connect_to_ip)(const V3_SOCK sock, const int hostip, const int port);
 208   int (*connect_to_host)(const V3_SOCK sock, const char * hostname, const int port);
 209
 210   // TCP Data Transfer
 211   int (*send)(const V3_SOCK sock, const char * buf, const int len);
 212   int (*recv)(const V3_SOCK sock, char * buf, const int len);
 213
 214   // UDP Data Transfer
 215   int (*sendto_host)(const V3_SOCK sock, const char * hostname, const int port,
 216                     const char * buf, const int len);
 217   int (*sendto_ip)(const V3_SOCK sock, const int ip_addr, const int port,
 218                   const char * buf, const int len);
 219
 220   int (*recvfrom_host)(const V3_SOCK sock, const char * hostname, const int port,
 221                          char * buf, const int len);
 222   int (*recvfrom_ip)(const V3_SOCK sock, const int ip_addr, const int port,
 223                          char * buf, const int len);
 224 };
 225
 226
 227 void V3_Init_Socket(struct v3_socket_hooks * hooks);
 228
 229
 230 #endif