LXR qemu/slirp/slirp.h

   1#ifndef SLIRP_H
   2#define SLIRP_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#ifndef _WIN32
  27#include <sys/uio.h>
  28#endif
  29
  30#ifndef _WIN32
  31#include <netinet/in.h>
  32#include <arpa/inet.h>
  33#endif
  34
  35#ifndef NO_UNIX_SOCKETS
  36#include <sys/un.h>
  37#endif
  38#ifdef HAVE_SYS_SIGNAL_H
  39# include <sys/signal.h>
  40#endif
  41#ifndef _WIN32
  42#include <sys/socket.h>
  43#endif
  44
  45#if defined(HAVE_SYS_IOCTL_H)
  46# include <sys/ioctl.h>
  47#endif
  48
  49#ifdef HAVE_SYS_SELECT_H
  50# include <sys/select.h>
  51#endif
  52
  53#ifdef HAVE_SYS_WAIT_H
  54# include <sys/wait.h>
  55#endif
  56
  57#ifdef HAVE_SYS_FILIO_H
  58# include <sys/filio.h>
  59#endif
  60
  61/* Avoid conflicting with the libc insque() and remque(), which
  62   have different prototypes. */
  63#define insque slirp_insque
  64#define remque slirp_remque
  65#define quehead slirp_quehead
  66
  67#ifdef HAVE_SYS_STROPTS_H
  68#include <sys/stropts.h>
  69#endif
  70
  71
  72#include "debug.h"
  73
  74#include "qemu/queue.h"
  75#include "qemu/sockets.h"
  76#include "net/eth.h"
  77
  78#include "libslirp.h"
  79#include "ip.h"
  80#include "ip6.h"
  81#include "tcp.h"
  82#include "tcp_timer.h"
  83#include "tcp_var.h"
  84#include "tcpip.h"
  85#include "udp.h"
  86#include "ip_icmp.h"
  87#include "ip6_icmp.h"
  88#include "mbuf.h"
  89#include "sbuf.h"
  90#include "socket.h"
  91#include "if.h"
  92#include "main.h"
  93#include "misc.h"
  94
  95#include "bootp.h"
  96#include "tftp.h"
  97
  98#define ARPOP_REQUEST 1         /* ARP request */
  99#define ARPOP_REPLY   2         /* ARP reply   */
 100
 101struct ethhdr {
 102    unsigned char  h_dest[ETH_ALEN];   /* destination eth addr */
 103    unsigned char  h_source[ETH_ALEN]; /* source ether addr    */
 104    unsigned short h_proto;            /* packet type ID field */
 105};
 106
 107struct slirp_arphdr {
 108    unsigned short ar_hrd;      /* format of hardware address */
 109    unsigned short ar_pro;      /* format of protocol address */
 110    unsigned char  ar_hln;      /* length of hardware address */
 111    unsigned char  ar_pln;      /* length of protocol address */
 112    unsigned short ar_op;       /* ARP opcode (command)       */
 113
 114    /*
 115     *  Ethernet looks like this : This bit is variable sized however...
 116     */
 117    unsigned char ar_sha[ETH_ALEN]; /* sender hardware address */
 118    uint32_t      ar_sip;           /* sender IP address       */
 119    unsigned char ar_tha[ETH_ALEN]; /* target hardware address */
 120    uint32_t      ar_tip;           /* target IP address       */
 121} QEMU_PACKED;
 122
 123#define ARP_TABLE_SIZE 16
 124
 125typedef struct ArpTable {
 126    struct slirp_arphdr table[ARP_TABLE_SIZE];
 127    int next_victim;
 128} ArpTable;
 129
 130void arp_table_add(Slirp *slirp, uint32_t ip_addr, uint8_t ethaddr[ETH_ALEN]);
 131
 132bool arp_table_search(Slirp *slirp, uint32_t ip_addr,
 133                      uint8_t out_ethaddr[ETH_ALEN]);
 134
 135struct ndpentry {
 136    unsigned char   eth_addr[ETH_ALEN];     /* sender hardware address */
 137    struct in6_addr ip_addr;                /* sender IP address       */
 138} QEMU_PACKED;
 139
 140#define NDP_TABLE_SIZE 16
 141
 142typedef struct NdpTable {
 143    struct ndpentry table[NDP_TABLE_SIZE];
 144    int next_victim;
 145} NdpTable;
 146
 147void ndp_table_add(Slirp *slirp, struct in6_addr ip_addr,
 148                   uint8_t ethaddr[ETH_ALEN]);
 149bool ndp_table_search(Slirp *slirp, struct in6_addr ip_addr,
 150                      uint8_t out_ethaddr[ETH_ALEN]);
 151
 152struct Slirp {
 153    QTAILQ_ENTRY(Slirp) entry;
 154    u_int time_fasttimo;
 155    u_int last_slowtimo;
 156    bool do_slowtimo;
 157
 158    bool in_enabled, in6_enabled;
 159
 160    /* virtual network configuration */
 161    struct in_addr vnetwork_addr;
 162    struct in_addr vnetwork_mask;
 163    struct in_addr vhost_addr;
 164    struct in6_addr vprefix_addr6;
 165    uint8_t vprefix_len;
 166    struct in6_addr vhost_addr6;
 167    struct in_addr vdhcp_startaddr;
 168    struct in_addr vnameserver_addr;
 169    struct in6_addr vnameserver_addr6;
 170
 171    struct in_addr client_ipaddr;
 172    char client_hostname[33];
 173
 174    int restricted;
 175    struct ex_list *exec_list;
 176
 177    /* mbuf states */
 178    struct quehead m_freelist;
 179    struct quehead m_usedlist;
 180    int mbuf_alloced;
 181
 182    /* if states */
 183    struct quehead if_fastq;   /* fast queue (for interactive data) */
 184    struct quehead if_batchq;  /* queue for non-interactive data */
 185    bool if_start_busy;     /* avoid if_start recursion */
 186
 187    /* ip states */
 188    struct ipq ipq;         /* ip reass. queue */
 189    uint16_t ip_id;         /* ip packet ctr, for ids */
 190
 191    /* bootp/dhcp states */
 192    BOOTPClient bootp_clients[NB_BOOTP_CLIENTS];
 193    char *bootp_filename;
 194    size_t vdnssearch_len;
 195    uint8_t *vdnssearch;
 196
 197    /* tcp states */
 198    struct socket tcb;
 199    struct socket *tcp_last_so;
 200    tcp_seq tcp_iss;        /* tcp initial send seq # */
 201    uint32_t tcp_now;       /* for RFC 1323 timestamps */
 202
 203    /* udp states */
 204    struct socket udb;
 205    struct socket *udp_last_so;
 206
 207    /* icmp states */
 208    struct socket icmp;
 209    struct socket *icmp_last_so;
 210
 211    /* tftp states */
 212    char *tftp_prefix;
 213    struct tftp_session tftp_sessions[TFTP_SESSIONS_MAX];
 214
 215    ArpTable arp_table;
 216    NdpTable ndp_table;
 217
 218    GRand *grand;
 219    QEMUTimer *ra_timer;
 220
 221    void *opaque;
 222};
 223
 224extern Slirp *slirp_instance;
 225
 226#ifndef NULL
 227#define NULL (void *)0
 228#endif
 229
 230void if_start(Slirp *);
 231
 232/* ncsi.c */
 233void ncsi_input(Slirp *slirp, const uint8_t *pkt, int pkt_len);
 234
 235#ifndef _WIN32
 236#include <netdb.h>
 237#endif
 238
 239#define SO_OPTIONS DO_KEEPALIVE
 240#define TCP_MAXIDLE (TCPTV_KEEPCNT * TCPTV_KEEPINTVL)
 241
 242/* dnssearch.c */
 243int translate_dnssearch(Slirp *s, const char ** names);
 244
 245/* cksum.c */
 246int cksum(struct mbuf *m, int len);
 247int ip6_cksum(struct mbuf *m);
 248
 249/* if.c */
 250void if_init(Slirp *);
 251void if_output(struct socket *, struct mbuf *);
 252
 253/* ip_input.c */
 254void ip_init(Slirp *);
 255void ip_cleanup(Slirp *);
 256void ip_input(struct mbuf *);
 257void ip_slowtimo(Slirp *);
 258void ip_stripoptions(register struct mbuf *, struct mbuf *);
 259
 260/* ip_output.c */
 261int ip_output(struct socket *, struct mbuf *);
 262
 263/* ip6_input.c */
 264void ip6_init(Slirp *);
 265void ip6_cleanup(Slirp *);
 266void ip6_input(struct mbuf *);
 267
 268/* ip6_output */
 269int ip6_output(struct socket *, struct mbuf *, int fast);
 270
 271/* tcp_input.c */
 272void tcp_input(register struct mbuf *, int, struct socket *, unsigned short af);
 273int tcp_mss(register struct tcpcb *, u_int);
 274
 275/* tcp_output.c */
 276int tcp_output(register struct tcpcb *);
 277void tcp_setpersist(register struct tcpcb *);
 278
 279/* tcp_subr.c */
 280void tcp_init(Slirp *);
 281void tcp_cleanup(Slirp *);
 282void tcp_template(struct tcpcb *);
 283void tcp_respond(struct tcpcb *, register struct tcpiphdr *,
 284        register struct mbuf *, tcp_seq, tcp_seq, int, unsigned short);
 285struct tcpcb * tcp_newtcpcb(struct socket *);
 286struct tcpcb * tcp_close(register struct tcpcb *);
 287void tcp_sockclosed(struct tcpcb *);
 288int tcp_fconnect(struct socket *, unsigned short af);
 289void tcp_connect(struct socket *);
 290int tcp_attach(struct socket *);
 291uint8_t tcp_tos(struct socket *);
 292int tcp_emu(struct socket *, struct mbuf *);
 293int tcp_ctl(struct socket *);
 294struct tcpcb *tcp_drop(struct tcpcb *tp, int err);
 295
 296#endif
 297