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
  27 #ifdef __V3VEE__
  28
  29 #define V3_Create_UDP_Socket() ({                               \
  30             extern struct v3_socket_hooks * sock_hooks;         \
  31             int sock = 0;                                       \
  32             if ((sock_hooks) && (sock_hooks)->udp_socket) {     \
  33                 sock = (sock_hooks)->udp_socket(0,0);           \
  34             }                                                   \
  35             sock;                                               \
  36         })
  37
  38
  39
  40 #define V3_Create_TCP_Socket() ({                               \
  41             extern struct v3_socket_hooks * sock_hooks;         \
  42             int sock = 0;                                       \
  43             if ((sock_hooks) && (sock_hooks)->tcp_socket) {     \
  44                 sock = (sock_hooks)->tcp_socket(0,0,0);         \
  45             }                                                   \
  46             sock;                                               \
  47         })
  48
  49
  50 #define V3_Close_Socket(sock)                           \
  51     do {                                                \
  52         extern struct v3_socket_hooks * sock_hooks;     \
  53         if ((sock_hooks) && (sock_hooks)->close) {      \
  54             (sock_hooks)->close(sock);                  \
  55         }                                               \
  56     } while (0);
  57
  58
  59
  60 #define V3_Bind_Socket(sock, port) ({                           \
  61             extern struct v3_socket_hooks * sock_hooks;         \
  62             int ret = -1;                                       \
  63             if ((sock_hooks) && (sock_hooks)->bind_socket) {    \
  64                 ret = (sock_hooks)->bind_socket(sock, port);    \
  65             }                                                   \
  66             ret;                                                \
  67         })
  68
  69
  70 #define V3_Listen_Socket(sock, backlog) ({                      \
  71             extern struct v3_socket_hooks * sock_hooks;         \
  72             int ret = -1;                                       \
  73             if ((sock_hooks) && (sock_hooks)->listen) {         \
  74                 ret = (sock_hooks)->listen(sock, backlog);      \
  75             }                                                   \
  76             ret;                                                \
  77         })
  78
  79
  80 #define V3_Accept_Socket(sock, ip_ptr, port_ptr) ({                     \
  81             extern struct v3_socket_hooks * sock_hooks;                 \
  82             int client_sock = 0;                                        \
  83             if ((sock_hooks) && (sock_hooks)->accept) {                 \
  84                 client_sock = (sock_hooks)->accept(sock, ip_ptr, port_ptr); \
  85             }                                                           \
  86             client_sock;                                                \
  87         })
  88
  89
  90 #define V3_Select_Socket(rset,wset,eset,tv) ({                          \
  91             extern struct v3_socket_hooks * sock_hooks;                 \
  92             int ret = -1;                                               \
  93             if ((sock_hooks) && (sock_hooks)->select) {                 \
  94                 ret = (sock_hooks)->select(rset, wset, eset, tv);       \
  95             }                                                           \
  96             ret;                                                        \
  97         })
  98
  99
 100
 101 #define V3_Connect_To_IP(sock, ip, port) ({                             \
 102             extern struct v3_socket_hooks * sock_hooks;                 \
 103             int ret = -1;                                               \
 104             if ((sock_hooks) && (sock_hooks)->connect_to_ip) {          \
 105                 ret = (sock_hooks)->connect_to_ip(sock, ip, port);      \
 106             }                                                           \
 107             ret;                                                        \
 108         })
 109
 110
 111 #define V3_Connect_To_Host(sock, hostname, port) ({                     \
 112             extern struct v3_socket_hooks * sock_hooks;                 \
 113             int ret = -1;                                               \
 114             if ((sock_hooks) && (sock_hooks)->connect_to_host) {        \
 115                 ret = (sock_hooks)->connect_to_host(sock, hostname, port); \
 116             }                                                           \
 117             ret;                                                        \
 118         })
 119
 120
 121 #define V3_Send(sock, buf, len) ({                              \
 122             extern struct v3_socket_hooks * sock_hooks;         \
 123             int ret = -1;                                       \
 124             if ((sock_hooks) && (sock_hooks)->send) {           \
 125                 ret = (sock_hooks)->send(sock, buf, len);       \
 126             }                                                   \
 127             ret;                                                \
 128         })
 129
 130 #define V3_Recv(sock, buf, len) ({                              \
 131             extern struct v3_socket_hooks * sock_hooks;         \
 132             int ret = -1;                                       \
 133             if ((sock_hooks) && (sock_hooks)->recv) {           \
 134                 ret = (sock_hooks)->recv(sock, buf, len);       \
 135             }                                                   \
 136             ret;                                                \
 137         })
 138
 139 #define V3_SendTo_Host(sock, hostname, port, buf, len) ({               \
 140             extern struct v3_socket_hooks * sock_hooks;                 \
 141             int ret = -1;                                               \
 142             if ((sock_hooks) && (sock_hooks)->sendto_host) {            \
 143                 ret = (sock_hooks)->sendto_host(sock, hostname, port, buf, len); \
 144             }                                                           \
 145             ret;                                                        \
 146         })
 147
 148
 149 #define V3_SendTo_IP(sock, ip, port, buf, len) ({                       \
 150             extern struct v3_socket_hooks * sock_hooks;                 \
 151             int ret = -1;                                               \
 152             if ((sock_hooks) && (sock_hooks)->sendto_ip) {              \
 153                 ret = (sock_hooks)->sendto_ip(sock, ip, port, buf, len); \
 154             }                                                           \
 155             ret;                                                        \
 156         })
 157
 158
 159 #define V3_RecvFrom_Host(sock, hostname, port, buf, len) ({             \
 160             extern struct v3_socket_hooks * sock_hooks;                 \
 161             int ret = -1;                                               \
 162             if ((sock_hooks) && (sock_hooks)->recvfrom_host) {          \
 163                 ret = (sock_hooks)->recvfrom_host(sock, hostname, port, buf, len); \
 164             }                                                           \
 165             ret;                                                        \
 166         })
 167
 168
 169 #define V3_RecvFrom_IP(sock, ip, port, buf, len) ({                     \
 170             extern struct v3_socket_hooks * sock_hooks;                 \
 171             int ret = -1;                                               \
 172             if ((sock_hooks) && (sock_hooks)->recvfrom_ip) {            \
 173                 ret = (sock_hooks)->recvfrom_ip(sock, ip, port, buf, len); \
 174             }                                                           \
 175             ret;                                                        \
 176         })
 177
 178
 179
 180 #define V3_SOCK_SET(n, p)  ((p)->fd_bits[(n)/8] |=  (1 << ((n) & 7)))
 181 #define V3_SOCK_CLR(n, p)  ((p)->fd_bits[(n)/8] &= ~(1 << ((n) & 7)))
 182 #define V3_SOCK_ISSET(n,p) ((p)->fd_bits[(n)/8] &   (1 << ((n) & 7)))
 183 #define V3_SOCK_ZERO(p)    memset((void*)(p), 0, sizeof(*(p)))
 184
 185
 186 #endif
 187
 188
 189 struct v3_timeval {
 190     long    tv_sec;         /* seconds */
 191     long    tv_usec;        /* and microseconds */
 192 };
 193
 194
 195 #define V3_SOCK_SETSIZE    1000
 196
 197 typedef struct v3_sock_set {
 198     // This format needs to match the standard posix FD_SET format, so it can be cast
 199     unsigned char fd_bits [(V3_SOCK_SETSIZE + 7) / 8];
 200 } v3_sock_set;
 201
 202
 203
 204 struct v3_socket_hooks {
 205     // Socket creation routines
 206     int (*tcp_socket)(const int bufsize, const int nodelay, const int nonblocking);
 207     int (*udp_socket)(const int bufsize, const int nonblocking);
 208
 209     // Socket Destruction
 210     void (*close)(int sock);
 211
 212     // Network Server Calls
 213     int (*bind_socket)(const int sock, const int port);
 214
 215     int (*listen)(const int sock, int backlog);
 216
 217     int (*accept)(const int sock, unsigned int * remote_ip, unsigned int * port);
 218     // This going to suck
 219     int (*select)(struct v3_sock_set * rset, \
 220                   struct v3_sock_set * wset, \
 221                   struct v3_sock_set * eset, \
 222                   struct v3_timeval tv);
 223
 224     // Connect calls
 225     int (*connect_to_ip)(const int sock, const int hostip, const int port);
 226     int (*connect_to_host)(const int sock, const char * hostname, const int port);
 227
 228     // TCP Data Transfer
 229     int (*send)(const int sock, const char * buf, const int len);
 230     int (*recv)(const int sock, char * buf, const int len);
 231
 232     // UDP Data Transfer
 233     int (*sendto_host)(const int sock, const char * hostname, const int port,
 234                        const char * buf, const int len);
 235     int (*sendto_ip)(const int sock, const int ip_addr, const int port,
 236                      const char * buf, const int len);
 237
 238     int (*recvfrom_host)(const int sock, const char * hostname, const int port,
 239                          char * buf, const int len);
 240     int (*recvfrom_ip)(const int sock, const int ip_addr, const int port,
 241                        char * buf, const int len);
 242 };
 243
 244
 245 extern void V3_Init_Sockets(struct v3_socket_hooks * hooks);
 246
 247 #endif