96 lines
3.4 KiB
C
96 lines
3.4 KiB
C
|
/*
|
||
|
* 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_ */
|