File:  [Qemu by Fabrice Bellard] / qemu / slirp / socket.h
Revision 1.1.1.4 (vendor branch): download - view: text, annotated - select for diffs
Tue Apr 24 17:25:55 2018 UTC (2 years, 11 months ago) by root
Branches: qemu, MAIN
CVS tags: qemu0125, qemu0124, qemu0123, qemu0122, qemu0121, qemu0120, qemu0111, qemu0110, HEAD
qemu 0.11.0

    1: /*
    2:  * Copyright (c) 1995 Danny Gasparovski.
    3:  *
    4:  * Please read the file COPYRIGHT for the
    5:  * terms and conditions of the copyright.
    6:  */
    7: 
    8: #ifndef _SLIRP_SOCKET_H_
    9: #define _SLIRP_SOCKET_H_
   10: 
   11: #define SO_EXPIRE 240000
   12: #define SO_EXPIREFAST 10000
   13: 
   14: /*
   15:  * Our socket structure
   16:  */
   17: 
   18: struct socket {
   19:   struct socket *so_next,*so_prev;      /* For a linked list of sockets */
   20: 
   21:   int s;                           /* The actual socket */
   22: 
   23:   Slirp *slirp;			   /* managing slirp instance */
   24: 
   25: 			/* XXX union these with not-yet-used sbuf params */
   26:   struct mbuf *so_m;	           /* Pointer to the original SYN packet,
   27: 				    * for non-blocking connect()'s, and
   28: 				    * PING reply's */
   29:   struct tcpiphdr *so_ti;	   /* Pointer to the original ti within
   30: 				    * so_mconn, for non-blocking connections */
   31:   int so_urgc;
   32:   struct in_addr so_faddr;	   /* foreign host table entry */
   33:   struct in_addr so_laddr;	   /* local host table entry */
   34:   u_int16_t so_fport;		   /* foreign port */
   35:   u_int16_t so_lport;		   /* local port */
   36: 
   37:   u_int8_t	so_iptos;	/* Type of service */
   38:   u_int8_t	so_emu;		/* Is the socket emulated? */
   39: 
   40:   u_char	so_type;		/* Type of socket, UDP or TCP */
   41:   int	so_state;		/* internal state flags SS_*, below */
   42: 
   43:   struct 	tcpcb *so_tcpcb;	/* pointer to TCP protocol control block */
   44:   u_int	so_expire;		/* When the socket will expire */
   45: 
   46:   int	so_queued;		/* Number of packets queued from this socket */
   47:   int	so_nqueued;		/* Number of packets queued in a row
   48: 				 * Used to determine when to "downgrade" a session
   49: 					 * from fastq to batchq */
   50: 
   51:   struct sbuf so_rcv;		/* Receive buffer */
   52:   struct sbuf so_snd;		/* Send buffer */
   53:   void * extra;			/* Extra pointer */
   54: };
   55: 
   56: 
   57: /*
   58:  * Socket state bits. (peer means the host on the Internet,
   59:  * local host means the host on the other end of the modem)
   60:  */
   61: #define SS_NOFDREF		0x001	/* No fd reference */
   62: 
   63: #define SS_ISFCONNECTING	0x002	/* Socket is connecting to peer (non-blocking connect()'s) */
   64: #define SS_ISFCONNECTED		0x004	/* Socket is connected to peer */
   65: #define SS_FCANTRCVMORE		0x008	/* Socket can't receive more from peer (for half-closes) */
   66: #define SS_FCANTSENDMORE	0x010	/* Socket can't send more to peer (for half-closes) */
   67: #define SS_FWDRAIN		0x040	/* We received a FIN, drain data and set SS_FCANTSENDMORE */
   68: 
   69: #define SS_CTL			0x080
   70: #define SS_FACCEPTCONN		0x100	/* Socket is accepting connections from a host on the internet */
   71: #define SS_FACCEPTONCE		0x200	/* If set, the SS_FACCEPTCONN socket will die after one accept */
   72: 
   73: #define SS_PERSISTENT_MASK	0xf000	/* Unremovable state bits */
   74: #define SS_HOSTFWD		0x1000	/* Socket describes host->guest forwarding */
   75: #define SS_INCOMING		0x2000	/* Connection was initiated by a host on the internet */
   76: 
   77: struct socket * solookup(struct socket *, struct in_addr, u_int, struct in_addr, u_int);
   78: struct socket * socreate(Slirp *);
   79: void sofree(struct socket *);
   80: int soread(struct socket *);
   81: void sorecvoob(struct socket *);
   82: int sosendoob(struct socket *);
   83: int sowrite(struct socket *);
   84: void sorecvfrom(struct socket *);
   85: int sosendto(struct socket *, struct mbuf *);
   86: struct socket * tcp_listen(Slirp *, u_int32_t, u_int, u_int32_t, u_int,
   87:                                int);
   88: void soisfconnecting(register struct socket *);
   89: void soisfconnected(register struct socket *);
   90: void sofwdrain(struct socket *);
   91: struct iovec; /* For win32 */
   92: size_t sopreprbuf(struct socket *so, struct iovec *iov, int *np);
   93: int soreadbuf(struct socket *so, const char *buf, int size);
   94: 
   95: #endif /* _SOCKET_H_ */

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