slirp/slirp.h

   1 #ifndef __COMMON_H__
   2 #define __COMMON_H__
   3
   4 #include "config-host.h"
   5 #include "slirp_config.h"
   6
   7 #ifdef _WIN32
   8 # include <inttypes.h>
   9
  10 typedef uint8_t u_int8_t;
  11 typedef uint16_t u_int16_t;
  12 typedef uint32_t u_int32_t;
  13 typedef uint64_t u_int64_t;
  14 typedef char *caddr_t;
  15
  16 # include <windows.h>
  17 # include <winsock2.h>
  18 # include <ws2tcpip.h>
  19 # include <sys/timeb.h>
  20 # include <iphlpapi.h>
  21
  22 # define EWOULDBLOCK WSAEWOULDBLOCK
  23 # define EINPROGRESS WSAEINPROGRESS
  24 # define ENOTCONN WSAENOTCONN
  25 # define EHOSTUNREACH WSAEHOSTUNREACH
  26 # define ENETUNREACH WSAENETUNREACH
  27 # define ECONNREFUSED WSAECONNREFUSED
  28 #else
  29 # define ioctlsocket ioctl
  30 # define closesocket(s) close(s)
  31 # define O_BINARY 0
  32 #endif
  33
  34 #include <sys/types.h>
  35 #ifdef HAVE_SYS_BITYPES_H
  36 # include <sys/bitypes.h>
  37 #endif
  38
  39 #include <sys/time.h>
  40
  41 #ifdef NEED_TYPEDEFS
  42 typedef char int8_t;
  43 typedef unsigned char u_int8_t;
  44
  45 # if SIZEOF_SHORT == 2
  46     typedef short int16_t;
  47     typedef unsigned short u_int16_t;
  48 # else
  49 #  if SIZEOF_INT == 2
  50     typedef int int16_t;
  51     typedef unsigned int u_int16_t;
  52 #  else
  53     #error Cannot find a type with sizeof() == 2
  54 #  endif
  55 # endif
  56
  57 # if SIZEOF_SHORT == 4
  58    typedef short int32_t;
  59    typedef unsigned short u_int32_t;
  60 # else
  61 #  if SIZEOF_INT == 4
  62     typedef int int32_t;
  63     typedef unsigned int u_int32_t;
  64 #  else
  65     #error Cannot find a type with sizeof() == 4
  66 #  endif
  67 # endif
  68 #endif /* NEED_TYPEDEFS */
  69
  70 #ifdef HAVE_UNISTD_H
  71 # include <unistd.h>
  72 #endif
  73
  74 #ifdef HAVE_STDLIB_H
  75 # include <stdlib.h>
  76 #endif
  77
  78 #include <stdio.h>
  79 #include <errno.h>
  80
  81 #ifndef HAVE_MEMMOVE
  82 #define memmove(x, y, z) bcopy(y, x, z)
  83 #endif
  84
  85 #if TIME_WITH_SYS_TIME
  86 # include <sys/time.h>
  87 # include <time.h>
  88 #else
  89 # ifdef HAVE_SYS_TIME_H
  90 #  include <sys/time.h>
  91 # else
  92 #  include <time.h>
  93 # endif
  94 #endif
  95
  96 #ifdef HAVE_STRING_H
  97 # include <string.h>
  98 #else
  99 # include <strings.h>
 100 #endif
 101
 102 #ifndef _WIN32
 103 #include <sys/uio.h>
 104 #endif
 105
 106 #undef _P
 107 #ifndef NO_PROTOTYPES
 108 #  define   _P(x)   x
 109 #else
 110 #  define   _P(x)   ()
 111 #endif
 112
 113 #ifndef _WIN32
 114 #include <netinet/in.h>
 115 #include <arpa/inet.h>
 116 #endif
 117
 118 #ifdef GETTIMEOFDAY_ONE_ARG
 119 #define gettimeofday(x, y) gettimeofday(x)
 120 #endif
 121
 122 /* Systems lacking strdup() definition in <string.h>. */
 123 #if defined(ultrix)
 124 char *strdup _P((const char *));
 125 #endif
 126
 127 /* Systems lacking malloc() definition in <stdlib.h>. */
 128 #if defined(ultrix) || defined(hcx)
 129 void *malloc _P((size_t arg));
 130 void free _P((void *ptr));
 131 #endif
 132
 133 #ifndef HAVE_INET_ATON
 134 int inet_aton _P((const char *cp, struct in_addr *ia));
 135 #endif
 136
 137 #include <fcntl.h>
 138 #ifndef NO_UNIX_SOCKETS
 139 #include <sys/un.h>
 140 #endif
 141 #include <signal.h>
 142 #ifdef HAVE_SYS_SIGNAL_H
 143 # include <sys/signal.h>
 144 #endif
 145 #ifndef _WIN32
 146 #include <sys/socket.h>
 147 #endif
 148
 149 #if defined(HAVE_SYS_IOCTL_H)
 150 # include <sys/ioctl.h>
 151 #endif
 152
 153 #ifdef HAVE_SYS_SELECT_H
 154 # include <sys/select.h>
 155 #endif
 156
 157 #ifdef HAVE_SYS_WAIT_H
 158 # include <sys/wait.h>
 159 #endif
 160
 161 #ifdef HAVE_SYS_FILIO_H
 162 # include <sys/filio.h>
 163 #endif
 164
 165 #ifdef USE_PPP
 166 #include <ppp/slirppp.h>
 167 #endif
 168
 169 #ifdef __STDC__
 170 #include <stdarg.h>
 171 #else
 172 #include <varargs.h>
 173 #endif
 174
 175 #include <sys/stat.h>
 176
 177 /* Avoid conflicting with the libc insque() and remque(), which
 178    have different prototypes. */
 179 #define insque slirp_insque
 180 #define remque slirp_remque
 181
 182 #ifdef HAVE_SYS_STROPTS_H
 183 #include <sys/stropts.h>
 184 #endif
 185
 186 #include "debug.h"
 187
 188 #include "libslirp.h"
 189 #include "ip.h"
 190 #include "tcp.h"
 191 #include "tcp_timer.h"
 192 #include "tcp_var.h"
 193 #include "tcpip.h"
 194 #include "udp.h"
 195 #include "mbuf.h"
 196 #include "sbuf.h"
 197 #include "socket.h"
 198 #include "if.h"
 199 #include "main.h"
 200 #include "misc.h"
 201 #ifdef USE_PPP
 202 #include "ppp/pppd.h"
 203 #include "ppp/ppp.h"
 204 #endif
 205
 206 #include "bootp.h"
 207 #include "tftp.h"
 208
 209 struct Slirp {
 210     /* virtual network configuration */
 211     struct in_addr vnetwork_addr;
 212     struct in_addr vnetwork_mask;
 213     struct in_addr vhost_addr;
 214     struct in_addr vdhcp_startaddr;
 215     struct in_addr vnameserver_addr;
 216
 217     /* ARP cache for the guest IP addresses (XXX: allow many entries) */
 218     uint8_t client_ethaddr[6];
 219
 220     struct in_addr client_ipaddr;
 221     char client_hostname[33];
 222
 223     int restricted;
 224     struct timeval tt;
 225     struct ex_list *exec_list;
 226
 227     /* mbuf states */
 228     struct mbuf m_freelist, m_usedlist;
 229     int mbuf_alloced;
 230
 231     /* if states */
 232     int if_queued;          /* number of packets queued so far */
 233     struct mbuf if_fastq;   /* fast queue (for interactive data) */
 234     struct mbuf if_batchq;  /* queue for non-interactive data */
 235     struct mbuf *next_m;    /* pointer to next mbuf to output */
 236
 237     /* ip states */
 238     struct ipq ipq;         /* ip reass. queue */
 239     u_int16_t ip_id;        /* ip packet ctr, for ids */
 240
 241     /* bootp/dhcp states */
 242     BOOTPClient bootp_clients[NB_BOOTP_CLIENTS];
 243     char *bootp_filename;
 244
 245     /* tcp states */
 246     struct socket tcb;
 247     struct socket *tcp_last_so;
 248     tcp_seq tcp_iss;        /* tcp initial send seq # */
 249     u_int32_t tcp_now;      /* for RFC 1323 timestamps */
 250
 251     /* udp states */
 252     struct socket udb;
 253     struct socket *udp_last_so;
 254
 255     /* tftp states */
 256     char *tftp_prefix;
 257     struct tftp_session tftp_sessions[TFTP_SESSIONS_MAX];
 258
 259 };
 260
 261 extern Slirp slirp_instance;
 262
 263 #ifndef NULL
 264 #define NULL (void *)0
 265 #endif
 266
 267 #ifndef FULL_BOLT
 268 void if_start _P((Slirp *));
 269 #else
 270 void if_start _P((struct ttys *));
 271 #endif
 272
 273 #ifdef BAD_SPRINTF
 274 # define vsprintf vsprintf_len
 275 # define sprintf sprintf_len
 276  extern int vsprintf_len _P((char *, const char *, va_list));
 277  extern int sprintf_len _P((char *, const char *, ...));
 278 #endif
 279
 280 #ifdef DECLARE_SPRINTF
 281 # ifndef BAD_SPRINTF
 282  extern int vsprintf _P((char *, const char *, va_list));
 283 # endif
 284  extern int vfprintf _P((FILE *, const char *, va_list));
 285 #endif
 286
 287 #ifndef HAVE_STRERROR
 288  extern char *strerror _P((int error));
 289 #endif
 290
 291 #ifndef HAVE_INDEX
 292  char *index _P((const char *, int));
 293 #endif
 294
 295 #ifndef HAVE_GETHOSTID
 296  long gethostid _P((void));
 297 #endif
 298
 299 void lprint _P((const char *, ...));
 300
 301 #ifndef _WIN32
 302 #include <netdb.h>
 303 #endif
 304
 305 #define DEFAULT_BAUD 115200
 306
 307 #define SO_OPTIONS DO_KEEPALIVE
 308 #define TCP_MAXIDLE (TCPTV_KEEPCNT * TCPTV_KEEPINTVL)
 309
 310 /* cksum.c */
 311 int cksum(struct mbuf *m, int len);
 312
 313 /* if.c */
 314 void if_init _P((Slirp *));
 315 void if_output _P((struct socket *, struct mbuf *));
 316
 317 /* ip_input.c */
 318 void ip_init _P((Slirp *));
 319 void ip_input _P((struct mbuf *));
 320 void ip_slowtimo _P((Slirp *));
 321 void ip_stripoptions _P((register struct mbuf *, struct mbuf *));
 322
 323 /* ip_output.c */
 324 int ip_output _P((struct socket *, struct mbuf *));
 325
 326 /* tcp_input.c */
 327 void tcp_input _P((register struct mbuf *, int, struct socket *));
 328 int tcp_mss _P((register struct tcpcb *, u_int));
 329
 330 /* tcp_output.c */
 331 int tcp_output _P((register struct tcpcb *));
 332 void tcp_setpersist _P((register struct tcpcb *));
 333
 334 /* tcp_subr.c */
 335 void tcp_init _P((Slirp *));
 336 void tcp_template _P((struct tcpcb *));
 337 void tcp_respond _P((struct tcpcb *, register struct tcpiphdr *, register struct mbuf *, tcp_seq, tcp_seq, int));
 338 struct tcpcb * tcp_newtcpcb _P((struct socket *));
 339 struct tcpcb * tcp_close _P((register struct tcpcb *));
 340 void tcp_sockclosed _P((struct tcpcb *));
 341 int tcp_fconnect _P((struct socket *));
 342 void tcp_connect _P((struct socket *));
 343 int tcp_attach _P((struct socket *));
 344 u_int8_t tcp_tos _P((struct socket *));
 345 int tcp_emu _P((struct socket *, struct mbuf *));
 346 int tcp_ctl _P((struct socket *));
 347 struct tcpcb *tcp_drop(struct tcpcb *tp, int err);
 348
 349 #ifdef USE_PPP
 350 #define MIN_MRU MINMRU
 351 #define MAX_MRU MAXMRU
 352 #else
 353 #define MIN_MRU 128
 354 #define MAX_MRU 16384
 355 #endif
 356
 357 #ifndef _WIN32
 358 #define min(x,y) ((x) < (y) ? (x) : (y))
 359 #define max(x,y) ((x) > (y) ? (x) : (y))
 360 #endif
 361
 362 #ifdef _WIN32
 363 #undef errno
 364 #define errno (WSAGetLastError())
 365 #endif
 366
 367 #endif