2 * Copyright (c) 1995 Danny Gasparovski.
4 * Please read the file COPYRIGHT for the
5 * terms and conditions of the copyright.
8 #ifndef _SLIRP_SOCKET_H_
9 #define _SLIRP_SOCKET_H_
11 #define SO_EXPIRE 240000
12 #define SO_EXPIREFAST 10000
15 * Our socket structure
19 struct socket
*so_next
,*so_prev
; /* For a linked list of sockets */
21 int s
; /* The actual socket */
23 Slirp
*slirp
; /* managing slirp instance */
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
29 struct tcpiphdr
*so_ti
; /* Pointer to the original ti within
30 * so_mconn, for non-blocking connections */
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 */
37 u_int8_t so_iptos
; /* Type of service */
38 u_int8_t so_emu
; /* Is the socket emulated? */
40 u_char so_type
; /* Type of socket, UDP or TCP */
41 int so_state
; /* internal state flags SS_*, below */
43 struct tcpcb
*so_tcpcb
; /* pointer to TCP protocol control block */
44 u_int so_expire
; /* When the socket will expire */
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 */
51 struct sbuf so_rcv
; /* Receive buffer */
52 struct sbuf so_snd
; /* Send buffer */
53 void * extra
; /* Extra pointer */
58 * Socket state bits. (peer means the host on the Internet,
59 * local host means the host on the other end of the modem)
61 #define SS_NOFDREF 0x001 /* No fd reference */
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 */
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 */
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 */
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
,
88 void soisfconnecting(struct socket
*);
89 void soisfconnected(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
);
95 #endif /* _SOCKET_H_ */