[qemu.git] / slirp / socket.h

/*
 * 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 */

  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_ */
Commit	Line	Data
f0cbd3ec FB	1	/*
f0cbd3ec FB	2	* Copyright (c) 1995 Danny Gasparovski.
5fafdf24 TS	3	*
5fafdf24 TS	4	* Please read the file COPYRIGHT for the
f0cbd3ec FB	5	* terms and conditions of the copyright.
	6	*/
	7
f0cbd3ec FB	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
460fec67 JK	23	Slirp slirp; / managing slirp instance */
460fec67 JK	24
f0cbd3ec FB	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 */
b6dce92e SW	34	uint16_t so_fport; /* foreign port */
b6dce92e SW	35	uint16_t so_lport; /* local port */
3b46e624	36
b6dce92e SW	37	uint8_t so_iptos; /* Type of service */
b6dce92e SW	38	uint8_t so_emu; /* Is the socket emulated? */
3b46e624	39
f0cbd3ec FB	40	u_char so_type; /* Type of socket, UDP or TCP */
f0cbd3ec FB	41	int so_state; /* internal state flags SS_, below /
3b46e624	42
f0cbd3ec FB	43	struct tcpcb so_tcpcb; / pointer to TCP protocol control block */
f0cbd3ec FB	44	u_int so_expire; /* When the socket will expire */
3b46e624	45
f0cbd3ec FB	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 */
5fafdf24	50
f0cbd3ec FB	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) */
f0cbd3ec FB	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
f932b6ce	73	#define SS_PERSISTENT_MASK 0xf000 /* Unremovable state bits */
6dd5ffb6	74	#define SS_HOSTFWD 0x1000 /* Socket describes host->guest forwarding */
4a82347a	75	#define SS_INCOMING 0x2000 /* Connection was initiated by a host on the internet */
f932b6ce	76
6cb9c6d3 BS	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 );
b6dce92e	86	struct socket * tcp_listen(Slirp *, uint32_t, u_int, uint32_t, u_int,
6cb9c6d3 BS	87	int);
	88	void soisfconnecting(register struct socket *);
	89	void soisfconnected(register struct socket *);
	90	void sofwdrain(struct socket *);
b9e82a59	91	struct iovec; /* For win32 */
e1c5a2b3 AL	92	size_t sopreprbuf(struct socket so, struct iovec iov, int *np);
e1c5a2b3 AL	93	int soreadbuf(struct socket so, const char buf, int size);
f0cbd3ec FB	94
f0cbd3ec FB	95	#endif /* _SOCKET_H_ */