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git.proxmox.com Git - mirror_qemu.git/blob - slirp/socket.h
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 /* XXX union these with not-yet-used sbuf params */
24 struct mbuf
*so_m
; /* Pointer to the original SYN packet,
25 * for non-blocking connect()'s, and
27 struct tcpiphdr
*so_ti
; /* Pointer to the original ti within
28 * so_mconn, for non-blocking connections */
30 struct in_addr so_faddr
; /* foreign host table entry */
31 struct in_addr so_laddr
; /* local host table entry */
32 u_int16_t so_fport
; /* foreign port */
33 u_int16_t so_lport
; /* local port */
35 u_int8_t so_iptos
; /* Type of service */
36 u_int8_t so_emu
; /* Is the socket emulated? */
38 u_char so_type
; /* Type of socket, UDP or TCP */
39 int so_state
; /* internal state flags SS_*, below */
41 struct tcpcb
*so_tcpcb
; /* pointer to TCP protocol control block */
42 u_int so_expire
; /* When the socket will expire */
44 int so_queued
; /* Number of packets queued from this socket */
45 int so_nqueued
; /* Number of packets queued in a row
46 * Used to determine when to "downgrade" a session
47 * from fastq to batchq */
49 struct sbuf so_rcv
; /* Receive buffer */
50 struct sbuf so_snd
; /* Send buffer */
51 void * extra
; /* Extra pointer */
56 * Socket state bits. (peer means the host on the Internet,
57 * local host means the host on the other end of the modem)
59 #define SS_NOFDREF 0x001 /* No fd reference */
61 #define SS_ISFCONNECTING 0x002 /* Socket is connecting to peer (non-blocking connect()'s) */
62 #define SS_ISFCONNECTED 0x004 /* Socket is connected to peer */
63 #define SS_FCANTRCVMORE 0x008 /* Socket can't receive more from peer (for half-closes) */
64 #define SS_FCANTSENDMORE 0x010 /* Socket can't send more to peer (for half-closes) */
65 #define SS_FWDRAIN 0x040 /* We received a FIN, drain data and set SS_FCANTSENDMORE */
68 #define SS_FACCEPTCONN 0x100 /* Socket is accepting connections from a host on the internet */
69 #define SS_FACCEPTONCE 0x200 /* If set, the SS_FACCEPTCONN socket will die after one accept */
71 #define SS_PERSISTENT_MASK 0xf000 /* Unremovable state bits */
72 #define SS_HOSTFWD 0x1000 /* Socket describes host->guest forwarding */
73 #define SS_INCOMING 0x2000 /* Connection was initiated by a host on the internet */
75 extern struct socket tcb
;
77 struct socket
* solookup
_P((struct socket
*, struct in_addr
, u_int
, struct in_addr
, u_int
));
78 struct socket
* socreate
_P((void));
79 void sofree
_P((struct socket
*));
80 int soread
_P((struct socket
*));
81 void sorecvoob
_P((struct socket
*));
82 int sosendoob
_P((struct socket
*));
83 int sowrite
_P((struct socket
*));
84 void sorecvfrom
_P((struct socket
*));
85 int sosendto
_P((struct socket
*, struct mbuf
*));
86 struct socket
* tcp_listen
_P((u_int32_t
, u_int
, u_int32_t
, u_int
, int));
87 void soisfconnecting
_P((register struct socket
*));
88 void soisfconnected
_P((register struct socket
*));
89 void sofwdrain
_P((struct socket
*));
90 struct iovec
; /* For win32 */
91 size_t sopreprbuf(struct socket
*so
, struct iovec
*iov
, int *np
);
92 int soreadbuf(struct socket
*so
, const char *buf
, int size
);
94 #endif /* _SOCKET_H_ */