Archipelago » qemu

/*

 * Copyright (c) 1995 Danny Gasparovski.

 *

 * Please read the file COPYRIGHT for the

 * terms and conditions of the copyright.

 */

#ifndef _SLIRP_SOCKET_H_

#define _SLIRP_SOCKET_H_

#define SO_EXPIRE 240000

#define SO_EXPIREFAST 10000

/*

 * Our socket structure

 */

struct socket {

  struct socket *so_next,*so_prev;      /* For a linked list of sockets */

  int s;                           /* The actual socket */

  int pollfds_idx;                 /* GPollFD GArray index */

  Slirp *slirp;                           /* managing slirp instance */

                        /* XXX union these with not-yet-used sbuf params */

  struct mbuf *so_m;                   /* Pointer to the original SYN packet,

                                    * for non-blocking connect()'s, and

                                    * PING reply's */

  struct tcpiphdr *so_ti;           /* Pointer to the original ti within

                                    * so_mconn, for non-blocking connections */

  int so_urgc;

  struct in_addr so_faddr;           /* foreign host table entry */

  struct in_addr so_laddr;           /* local host table entry */

  uint16_t so_fport;                   /* foreign port */

  uint16_t so_lport;                   /* local port */

  uint8_t        so_iptos;        /* Type of service */

  uint8_t        so_emu;                /* Is the socket emulated? */

  u_char        so_type;                /* Type of socket, UDP or TCP */

  int        so_state;                /* internal state flags SS_*, below */

  struct         tcpcb *so_tcpcb;        /* pointer to TCP protocol control block */

  u_int        so_expire;                /* When the socket will expire */

  int        so_queued;                /* Number of packets queued from this socket */

  int        so_nqueued;                /* Number of packets queued in a row

                                 * Used to determine when to "downgrade" a session

                                         * from fastq to batchq */

  struct sbuf so_rcv;                /* Receive buffer */

  struct sbuf so_snd;                /* Send buffer */

  void * extra;                        /* Extra pointer */

};

/*

 * Socket state bits. (peer means the host on the Internet,

 * local host means the host on the other end of the modem)

 */

#define SS_NOFDREF                0x001        /* No fd reference */

#define SS_ISFCONNECTING        0x002        /* Socket is connecting to peer (non-blocking connect()'s) */

#define SS_ISFCONNECTED                0x004        /* Socket is connected to peer */

#define SS_FCANTRCVMORE                0x008        /* Socket can't receive more from peer (for half-closes) */

#define SS_FCANTSENDMORE        0x010        /* Socket can't send more to peer (for half-closes) */

#define SS_FWDRAIN                0x040        /* We received a FIN, drain data and set SS_FCANTSENDMORE */

#define SS_CTL                        0x080

#define SS_FACCEPTCONN                0x100        /* Socket is accepting connections from a host on the internet */

#define SS_FACCEPTONCE                0x200        /* If set, the SS_FACCEPTCONN socket will die after one accept */

#define SS_PERSISTENT_MASK        0xf000        /* Unremovable state bits */

#define SS_HOSTFWD                0x1000        /* Socket describes host->guest forwarding */

#define SS_INCOMING                0x2000        /* Connection was initiated by a host on the internet */

struct socket * solookup(struct socket *, struct in_addr, u_int, struct in_addr, u_int);

struct socket * socreate(Slirp *);

void sofree(struct socket *);

int soread(struct socket *);

void sorecvoob(struct socket *);

int sosendoob(struct socket *);

int sowrite(struct socket *);

void sorecvfrom(struct socket *);

int sosendto(struct socket *, struct mbuf *);

struct socket * tcp_listen(Slirp *, uint32_t, u_int, uint32_t, u_int,

                               int);

void soisfconnecting(register struct socket *);

void soisfconnected(register struct socket *);

void sofwdrain(struct socket *);

struct iovec; /* For win32 */

size_t sopreprbuf(struct socket *so, struct iovec *iov, int *np);

int soreadbuf(struct socket *so, const char *buf, int size);

#endif /* _SOCKET_H_ */