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 #ifndef _WIN32
 107 #include <netinet/in.h>
 108 #include <arpa/inet.h>
 109 #endif
 110
 111 /* Systems lacking strdup() definition in <string.h>. */
 112 #if defined(ultrix)
 113 char *strdup(const char *);
 114 #endif
 115
 116 /* Systems lacking malloc() definition in <stdlib.h>. */
 117 #if defined(ultrix) || defined(hcx)
 118 void *malloc(size_t arg);
 119 void free(void *ptr);
 120 #endif
 121
 122 #ifndef HAVE_INET_ATON
 123 int inet_aton(const char *cp, struct in_addr *ia);
 124 #endif
 125
 126 #include <fcntl.h>
 127 #ifndef NO_UNIX_SOCKETS
 128 #include <sys/un.h>
 129 #endif
 130 #include <signal.h>
 131 #ifdef HAVE_SYS_SIGNAL_H
 132 # include <sys/signal.h>
 133 #endif
 134 #ifndef _WIN32
 135 #include <sys/socket.h>
 136 #endif
 137
 138 #if defined(HAVE_SYS_IOCTL_H)
 139 # include <sys/ioctl.h>
 140 #endif
 141
 142 #ifdef HAVE_SYS_SELECT_H
 143 # include <sys/select.h>
 144 #endif
 145
 146 #ifdef HAVE_SYS_WAIT_H
 147 # include <sys/wait.h>
 148 #endif
 149
 150 #ifdef HAVE_SYS_FILIO_H
 151 # include <sys/filio.h>
 152 #endif
 153
 154 #ifdef USE_PPP
 155 #include <ppp/slirppp.h>
 156 #endif
 157
 158 #ifdef __STDC__
 159 #include <stdarg.h>
 160 #else
 161 #include <varargs.h>
 162 #endif
 163
 164 #include <sys/stat.h>
 165
 166 /* Avoid conflicting with the libc insque() and remque(), which
 167    have different prototypes. */
 168 #define insque slirp_insque
 169 #define remque slirp_remque
 170
 171 #ifdef HAVE_SYS_STROPTS_H
 172 #include <sys/stropts.h>
 173 #endif
 174
 175 #include "debug.h"
 176
 177 #include "qemu-queue.h"
 178
 179 #include "libslirp.h"
 180 #include "ip.h"
 181 #include "tcp.h"
 182 #include "tcp_timer.h"
 183 #include "tcp_var.h"
 184 #include "tcpip.h"
 185 #include "udp.h"
 186 #include "mbuf.h"
 187 #include "sbuf.h"
 188 #include "socket.h"
 189 #include "if.h"
 190 #include "main.h"
 191 #include "misc.h"
 192 #ifdef USE_PPP
 193 #include "ppp/pppd.h"
 194 #include "ppp/ppp.h"
 195 #endif
 196
 197 #include "bootp.h"
 198 #include "tftp.h"
 199
 200 struct Slirp {
 201     QTAILQ_ENTRY(Slirp) entry;
 202
 203     /* virtual network configuration */
 204     struct in_addr vnetwork_addr;
 205     struct in_addr vnetwork_mask;
 206     struct in_addr vhost_addr;
 207     struct in_addr vdhcp_startaddr;
 208     struct in_addr vnameserver_addr;
 209
 210     /* ARP cache for the guest IP addresses (XXX: allow many entries) */
 211     uint8_t client_ethaddr[6];
 212
 213     struct in_addr client_ipaddr;
 214     char client_hostname[33];
 215
 216     int restricted;
 217     struct timeval tt;
 218     struct ex_list *exec_list;
 219
 220     /* mbuf states */
 221     struct mbuf m_freelist, m_usedlist;
 222     int mbuf_alloced;
 223
 224     /* if states */
 225     int if_queued;          /* number of packets queued so far */
 226     struct mbuf if_fastq;   /* fast queue (for interactive data) */
 227     struct mbuf if_batchq;  /* queue for non-interactive data */
 228     struct mbuf *next_m;    /* pointer to next mbuf to output */
 229
 230     /* ip states */
 231     struct ipq ipq;         /* ip reass. queue */
 232     u_int16_t ip_id;        /* ip packet ctr, for ids */
 233
 234     /* bootp/dhcp states */
 235     BOOTPClient bootp_clients[NB_BOOTP_CLIENTS];
 236     char *bootp_filename;
 237
 238     /* tcp states */
 239     struct socket tcb;
 240     struct socket *tcp_last_so;
 241     tcp_seq tcp_iss;        /* tcp initial send seq # */
 242     u_int32_t tcp_now;      /* for RFC 1323 timestamps */
 243
 244     /* udp states */
 245     struct socket udb;
 246     struct socket *udp_last_so;
 247
 248     /* tftp states */
 249     char *tftp_prefix;
 250     struct tftp_session tftp_sessions[TFTP_SESSIONS_MAX];
 251
 252     void *opaque;
 253 };
 254
 255 extern Slirp *slirp_instance;
 256
 257 #ifndef NULL
 258 #define NULL (void *)0
 259 #endif
 260
 261 #ifndef FULL_BOLT
 262 void if_start(Slirp *);
 263 #else
 264 void if_start(struct ttys *);
 265 #endif
 266
 267 #ifdef BAD_SPRINTF
 268 # define vsprintf vsprintf_len
 269 # define sprintf sprintf_len
 270  extern int vsprintf_len(char *, const char *, va_list);
 271  extern int sprintf_len(char *, const char *, ...);
 272 #endif
 273
 274 #ifdef DECLARE_SPRINTF
 275 # ifndef BAD_SPRINTF
 276  extern int vsprintf(char *, const char *, va_list);
 277 # endif
 278  extern int vfprintf(FILE *, const char *, va_list);
 279 #endif
 280
 281 #ifndef HAVE_STRERROR
 282  extern char *strerror(int error);
 283 #endif
 284
 285 #ifndef HAVE_INDEX
 286  char *index(const char *, int);
 287 #endif
 288
 289 #ifndef HAVE_GETHOSTID
 290  long gethostid(void);
 291 #endif
 292
 293 void lprint(const char *, ...);
 294
 295 #ifndef _WIN32
 296 #include <netdb.h>
 297 #endif
 298
 299 #define DEFAULT_BAUD 115200
 300
 301 #define SO_OPTIONS DO_KEEPALIVE
 302 #define TCP_MAXIDLE (TCPTV_KEEPCNT * TCPTV_KEEPINTVL)
 303
 304 /* cksum.c */
 305 int cksum(struct mbuf *m, int len);
 306
 307 /* if.c */
 308 void if_init(Slirp *);
 309 void if_output(struct socket *, struct mbuf *);
 310
 311 /* ip_input.c */
 312 void ip_init(Slirp *);
 313 void ip_input(struct mbuf *);
 314 void ip_slowtimo(Slirp *);
 315 void ip_stripoptions(register struct mbuf *, struct mbuf *);
 316
 317 /* ip_output.c */
 318 int ip_output(struct socket *, struct mbuf *);
 319
 320 /* tcp_input.c */
 321 void tcp_input(register struct mbuf *, int, struct socket *);
 322 int tcp_mss(register struct tcpcb *, u_int);
 323
 324 /* tcp_output.c */
 325 int tcp_output(register struct tcpcb *);
 326 void tcp_setpersist(register struct tcpcb *);
 327
 328 /* tcp_subr.c */
 329 void tcp_init(Slirp *);
 330 void tcp_template(struct tcpcb *);
 331 void tcp_respond(struct tcpcb *, register struct tcpiphdr *, register struct mbuf *, tcp_seq, tcp_seq, int);
 332 struct tcpcb * tcp_newtcpcb(struct socket *);
 333 struct tcpcb * tcp_close(register struct tcpcb *);
 334 void tcp_sockclosed(struct tcpcb *);
 335 int tcp_fconnect(struct socket *);
 336 void tcp_connect(struct socket *);
 337 int tcp_attach(struct socket *);
 338 u_int8_t tcp_tos(struct socket *);
 339 int tcp_emu(struct socket *, struct mbuf *);
 340 int tcp_ctl(struct socket *);
 341 struct tcpcb *tcp_drop(struct tcpcb *tp, int err);
 342
 343 #ifdef USE_PPP
 344 #define MIN_MRU MINMRU
 345 #define MAX_MRU MAXMRU
 346 #else
 347 #define MIN_MRU 128
 348 #define MAX_MRU 16384
 349 #endif
 350
 351 #ifndef _WIN32
 352 #define min(x,y) ((x) < (y) ? (x) : (y))
 353 #define max(x,y) ((x) > (y) ? (x) : (y))
 354 #endif
 355
 356 #ifdef _WIN32
 357 #undef errno
 358 #define errno (WSAGetLastError())
 359 #endif
 360
 361 #endif