LXR qemu/slirp/slirp.h

   1#ifndef __COMMON_H__
   2#define __COMMON_H__
   3
   4#include "slirp_config.h"
   5
   6#ifdef _WIN32
   7
   8typedef char *caddr_t;
   9
  10# include <windows.h>
  11# include <winsock2.h>
  12# include <ws2tcpip.h>
  13# include <sys/timeb.h>
  14# include <iphlpapi.h>
  15
  16#else
  17# if !defined(__HAIKU__)
  18#  define O_BINARY 0
  19# endif
  20#endif
  21
  22#ifdef HAVE_SYS_BITYPES_H
  23# include <sys/bitypes.h>
  24#endif
  25
  26
  27#ifndef HAVE_MEMMOVE
  28#define memmove(x, y, z) bcopy(y, x, z)
  29#endif
  30
  31#ifndef _WIN32
  32#include <sys/uio.h>
  33#endif
  34
  35#ifndef _WIN32
  36#include <netinet/in.h>
  37#include <arpa/inet.h>
  38#endif
  39
  40/* Systems lacking strdup() definition in <string.h>. */
  41#if defined(ultrix)
  42char *strdup(const char *);
  43#endif
  44
  45/* Systems lacking malloc() definition in <stdlib.h>. */
  46#if defined(ultrix) || defined(hcx)
  47void *malloc(size_t arg);
  48void free(void *ptr);
  49#endif
  50
  51#ifndef NO_UNIX_SOCKETS
  52#include <sys/un.h>
  53#endif
  54#ifdef HAVE_SYS_SIGNAL_H
  55# include <sys/signal.h>
  56#endif
  57#ifndef _WIN32
  58#include <sys/socket.h>
  59#endif
  60
  61#if defined(HAVE_SYS_IOCTL_H)
  62# include <sys/ioctl.h>
  63#endif
  64
  65#ifdef HAVE_SYS_SELECT_H
  66# include <sys/select.h>
  67#endif
  68
  69#ifdef HAVE_SYS_WAIT_H
  70# include <sys/wait.h>
  71#endif
  72
  73#ifdef HAVE_SYS_FILIO_H
  74# include <sys/filio.h>
  75#endif
  76
  77#ifdef USE_PPP
  78#include <ppp/slirppp.h>
  79#endif
  80
  81/* Avoid conflicting with the libc insque() and remque(), which
  82   have different prototypes. */
  83#define insque slirp_insque
  84#define remque slirp_remque
  85#define quehead slirp_quehead
  86
  87#ifdef HAVE_SYS_STROPTS_H
  88#include <sys/stropts.h>
  89#endif
  90
  91#include <glib.h>
  92
  93#include "debug.h"
  94
  95#include "qemu/queue.h"
  96#include "qemu/sockets.h"
  97#include "net/eth.h"
  98
  99#include "libslirp.h"
 100#include "ip.h"
 101#include "ip6.h"
 102#include "tcp.h"
 103#include "tcp_timer.h"
 104#include "tcp_var.h"
 105#include "tcpip.h"
 106#include "udp.h"
 107#include "ip_icmp.h"
 108#include "ip6_icmp.h"
 109#include "mbuf.h"
 110#include "sbuf.h"
 111#include "socket.h"
 112#include "if.h"
 113#include "main.h"
 114#include "misc.h"
 115#ifdef USE_PPP
 116#include "ppp/pppd.h"
 117#include "ppp/ppp.h"
 118#endif
 119
 120#include "bootp.h"
 121#include "tftp.h"
 122
 123#define ARPOP_REQUEST 1         /* ARP request */
 124#define ARPOP_REPLY   2         /* ARP reply   */
 125
 126struct ethhdr {
 127    unsigned char  h_dest[ETH_ALEN];   /* destination eth addr */
 128    unsigned char  h_source[ETH_ALEN]; /* source ether addr    */
 129    unsigned short h_proto;            /* packet type ID field */
 130};
 131
 132struct arphdr {
 133    unsigned short ar_hrd;      /* format of hardware address */
 134    unsigned short ar_pro;      /* format of protocol address */
 135    unsigned char  ar_hln;      /* length of hardware address */
 136    unsigned char  ar_pln;      /* length of protocol address */
 137    unsigned short ar_op;       /* ARP opcode (command)       */
 138
 139    /*
 140     *  Ethernet looks like this : This bit is variable sized however...
 141     */
 142    unsigned char ar_sha[ETH_ALEN]; /* sender hardware address */
 143    uint32_t      ar_sip;           /* sender IP address       */
 144    unsigned char ar_tha[ETH_ALEN]; /* target hardware address */
 145    uint32_t      ar_tip;           /* target IP address       */
 146} QEMU_PACKED;
 147
 148#define ARP_TABLE_SIZE 16
 149
 150typedef struct ArpTable {
 151    struct arphdr table[ARP_TABLE_SIZE];
 152    int next_victim;
 153} ArpTable;
 154
 155void arp_table_add(Slirp *slirp, uint32_t ip_addr, uint8_t ethaddr[ETH_ALEN]);
 156
 157bool arp_table_search(Slirp *slirp, uint32_t ip_addr,
 158                      uint8_t out_ethaddr[ETH_ALEN]);
 159
 160struct ndpentry {
 161    unsigned char   eth_addr[ETH_ALEN];     /* sender hardware address */
 162    struct in6_addr ip_addr;                /* sender IP address       */
 163} QEMU_PACKED;
 164
 165#define NDP_TABLE_SIZE 16
 166
 167typedef struct NdpTable {
 168    struct ndpentry table[NDP_TABLE_SIZE];
 169    int next_victim;
 170} NdpTable;
 171
 172void ndp_table_add(Slirp *slirp, struct in6_addr ip_addr,
 173                   uint8_t ethaddr[ETH_ALEN]);
 174bool ndp_table_search(Slirp *slirp, struct in6_addr ip_addr,
 175                      uint8_t out_ethaddr[ETH_ALEN]);
 176
 177struct Slirp {
 178    QTAILQ_ENTRY(Slirp) entry;
 179    u_int time_fasttimo;
 180    u_int last_slowtimo;
 181    bool do_slowtimo;
 182
 183    bool in_enabled, in6_enabled;
 184
 185    /* virtual network configuration */
 186    struct in_addr vnetwork_addr;
 187    struct in_addr vnetwork_mask;
 188    struct in_addr vhost_addr;
 189    struct in6_addr vprefix_addr6;
 190    uint8_t vprefix_len;
 191    struct in6_addr vhost_addr6;
 192    struct in_addr vdhcp_startaddr;
 193    struct in_addr vnameserver_addr;
 194    struct in6_addr vnameserver_addr6;
 195
 196    struct in_addr client_ipaddr;
 197    char client_hostname[33];
 198
 199    int restricted;
 200    struct ex_list *exec_list;
 201
 202    /* mbuf states */
 203    struct quehead m_freelist;
 204    struct quehead m_usedlist;
 205    int mbuf_alloced;
 206
 207    /* if states */
 208    struct quehead if_fastq;   /* fast queue (for interactive data) */
 209    struct quehead if_batchq;  /* queue for non-interactive data */
 210    struct mbuf *next_m;    /* pointer to next mbuf to output */
 211    bool if_start_busy;     /* avoid if_start recursion */
 212
 213    /* ip states */
 214    struct ipq ipq;         /* ip reass. queue */
 215    uint16_t ip_id;         /* ip packet ctr, for ids */
 216
 217    /* bootp/dhcp states */
 218    BOOTPClient bootp_clients[NB_BOOTP_CLIENTS];
 219    char *bootp_filename;
 220    size_t vdnssearch_len;
 221    uint8_t *vdnssearch;
 222
 223    /* tcp states */
 224    struct socket tcb;
 225    struct socket *tcp_last_so;
 226    tcp_seq tcp_iss;        /* tcp initial send seq # */
 227    uint32_t tcp_now;       /* for RFC 1323 timestamps */
 228
 229    /* udp states */
 230    struct socket udb;
 231    struct socket *udp_last_so;
 232
 233    /* icmp states */
 234    struct socket icmp;
 235    struct socket *icmp_last_so;
 236
 237    /* tftp states */
 238    char *tftp_prefix;
 239    struct tftp_session tftp_sessions[TFTP_SESSIONS_MAX];
 240
 241    ArpTable arp_table;
 242    NdpTable ndp_table;
 243
 244    GRand *grand;
 245    QEMUTimer *ra_timer;
 246
 247    void *opaque;
 248};
 249
 250extern Slirp *slirp_instance;
 251
 252#ifndef NULL
 253#define NULL (void *)0
 254#endif
 255
 256#ifndef FULL_BOLT
 257void if_start(Slirp *);
 258#else
 259void if_start(struct ttys *);
 260#endif
 261
 262#ifndef HAVE_STRERROR
 263 char *strerror(int error);
 264#endif
 265
 266#ifndef HAVE_INDEX
 267 char *index(const char *, int);
 268#endif
 269
 270#ifndef HAVE_GETHOSTID
 271 long gethostid(void);
 272#endif
 273
 274#ifndef _WIN32
 275#include <netdb.h>
 276#endif
 277
 278#define DEFAULT_BAUD 115200
 279
 280#define SO_OPTIONS DO_KEEPALIVE
 281#define TCP_MAXIDLE (TCPTV_KEEPCNT * TCPTV_KEEPINTVL)
 282
 283/* dnssearch.c */
 284int translate_dnssearch(Slirp *s, const char ** names);
 285
 286/* cksum.c */
 287int cksum(struct mbuf *m, int len);
 288int ip6_cksum(struct mbuf *m);
 289
 290/* if.c */
 291void if_init(Slirp *);
 292void if_output(struct socket *, struct mbuf *);
 293
 294/* ip_input.c */
 295void ip_init(Slirp *);
 296void ip_cleanup(Slirp *);
 297void ip_input(struct mbuf *);
 298void ip_slowtimo(Slirp *);
 299void ip_stripoptions(register struct mbuf *, struct mbuf *);
 300
 301/* ip_output.c */
 302int ip_output(struct socket *, struct mbuf *);
 303
 304/* ip6_input.c */
 305void ip6_init(Slirp *);
 306void ip6_cleanup(Slirp *);
 307void ip6_input(struct mbuf *);
 308
 309/* ip6_output */
 310int ip6_output(struct socket *, struct mbuf *, int fast);
 311
 312/* tcp_input.c */
 313void tcp_input(register struct mbuf *, int, struct socket *, unsigned short af);
 314int tcp_mss(register struct tcpcb *, u_int);
 315
 316/* tcp_output.c */
 317int tcp_output(register struct tcpcb *);
 318void tcp_setpersist(register struct tcpcb *);
 319
 320/* tcp_subr.c */
 321void tcp_init(Slirp *);
 322void tcp_cleanup(Slirp *);
 323void tcp_template(struct tcpcb *);
 324void tcp_respond(struct tcpcb *, register struct tcpiphdr *,
 325        register struct mbuf *, tcp_seq, tcp_seq, int, unsigned short);
 326struct tcpcb * tcp_newtcpcb(struct socket *);
 327struct tcpcb * tcp_close(register struct tcpcb *);
 328void tcp_sockclosed(struct tcpcb *);
 329int tcp_fconnect(struct socket *, unsigned short af);
 330void tcp_connect(struct socket *);
 331int tcp_attach(struct socket *);
 332uint8_t tcp_tos(struct socket *);
 333int tcp_emu(struct socket *, struct mbuf *);
 334int tcp_ctl(struct socket *);
 335struct tcpcb *tcp_drop(struct tcpcb *tp, int err);
 336
 337#ifdef USE_PPP
 338#define MIN_MRU MINMRU
 339#define MAX_MRU MAXMRU
 340#else
 341#define MIN_MRU 128
 342#define MAX_MRU 16384
 343#endif
 344
 345#ifndef _WIN32
 346#define min(x,y) ((x) < (y) ? (x) : (y))
 347#define max(x,y) ((x) > (y) ? (x) : (y))
 348#endif
 349
 350#ifdef _WIN32
 351#undef errno
 352#define errno (WSAGetLastError())
 353#endif
 354
 355#endif
 356