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bellardf0cbd3e2004-04-22 00:10:48 +00001/*
2 * Copyright (c) 1995 Danny Gasparovski.
ths5fafdf22007-09-16 21:08:06 +00003 *
4 * Please read the file COPYRIGHT for the
bellardf0cbd3e2004-04-22 00:10:48 +00005 * terms and conditions of the copyright.
6 */
7
bellardf0cbd3e2004-04-22 00:10:48 +00008#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
18struct socket {
19 struct socket *so_next,*so_prev; /* For a linked list of sockets */
20
21 int s; /* The actual socket */
22
Stefan Hajnoczi8917c3b2013-02-20 11:28:28 +010023 int pollfds_idx; /* GPollFD GArray index */
24
Jan Kiszka460fec62009-06-24 14:42:31 +020025 Slirp *slirp; /* managing slirp instance */
26
bellardf0cbd3e2004-04-22 00:10:48 +000027 /* XXX union these with not-yet-used sbuf params */
28 struct mbuf *so_m; /* Pointer to the original SYN packet,
29 * for non-blocking connect()'s, and
30 * PING reply's */
31 struct tcpiphdr *so_ti; /* Pointer to the original ti within
32 * so_mconn, for non-blocking connections */
33 int so_urgc;
34 struct in_addr so_faddr; /* foreign host table entry */
35 struct in_addr so_laddr; /* local host table entry */
Stefan Weilb6dce922010-07-22 22:15:23 +020036 uint16_t so_fport; /* foreign port */
37 uint16_t so_lport; /* local port */
ths3b46e622007-09-17 08:09:54 +000038
Stefan Weilb6dce922010-07-22 22:15:23 +020039 uint8_t so_iptos; /* Type of service */
40 uint8_t so_emu; /* Is the socket emulated? */
ths3b46e622007-09-17 08:09:54 +000041
bellardf0cbd3e2004-04-22 00:10:48 +000042 u_char so_type; /* Type of socket, UDP or TCP */
43 int so_state; /* internal state flags SS_*, below */
ths3b46e622007-09-17 08:09:54 +000044
bellardf0cbd3e2004-04-22 00:10:48 +000045 struct tcpcb *so_tcpcb; /* pointer to TCP protocol control block */
46 u_int so_expire; /* When the socket will expire */
ths3b46e622007-09-17 08:09:54 +000047
bellardf0cbd3e2004-04-22 00:10:48 +000048 int so_queued; /* Number of packets queued from this socket */
49 int so_nqueued; /* Number of packets queued in a row
50 * Used to determine when to "downgrade" a session
51 * from fastq to batchq */
ths5fafdf22007-09-16 21:08:06 +000052
bellardf0cbd3e2004-04-22 00:10:48 +000053 struct sbuf so_rcv; /* Receive buffer */
54 struct sbuf so_snd; /* Send buffer */
55 void * extra; /* Extra pointer */
56};
57
58
59/*
60 * Socket state bits. (peer means the host on the Internet,
61 * local host means the host on the other end of the modem)
62 */
63#define SS_NOFDREF 0x001 /* No fd reference */
64
65#define SS_ISFCONNECTING 0x002 /* Socket is connecting to peer (non-blocking connect()'s) */
66#define SS_ISFCONNECTED 0x004 /* Socket is connected to peer */
67#define SS_FCANTRCVMORE 0x008 /* Socket can't receive more from peer (for half-closes) */
68#define SS_FCANTSENDMORE 0x010 /* Socket can't send more to peer (for half-closes) */
bellardf0cbd3e2004-04-22 00:10:48 +000069#define SS_FWDRAIN 0x040 /* We received a FIN, drain data and set SS_FCANTSENDMORE */
70
71#define SS_CTL 0x080
72#define SS_FACCEPTCONN 0x100 /* Socket is accepting connections from a host on the internet */
73#define SS_FACCEPTONCE 0x200 /* If set, the SS_FACCEPTCONN socket will die after one accept */
74
Jan Kiszkaf932b6c2009-06-24 14:42:29 +020075#define SS_PERSISTENT_MASK 0xf000 /* Unremovable state bits */
Jan Kiszka6dd5ffb2009-06-24 14:42:29 +020076#define SS_HOSTFWD 0x1000 /* Socket describes host->guest forwarding */
Jan Kiszka4a823472009-06-24 14:42:29 +020077#define SS_INCOMING 0x2000 /* Connection was initiated by a host on the internet */
Jan Kiszkaf932b6c2009-06-24 14:42:29 +020078
Blue Swirl6cb9c6d2009-07-01 19:11:17 +000079struct socket * solookup(struct socket *, struct in_addr, u_int, struct in_addr, u_int);
80struct socket * socreate(Slirp *);
81void sofree(struct socket *);
82int soread(struct socket *);
83void sorecvoob(struct socket *);
84int sosendoob(struct socket *);
85int sowrite(struct socket *);
86void sorecvfrom(struct socket *);
87int sosendto(struct socket *, struct mbuf *);
Stefan Weilb6dce922010-07-22 22:15:23 +020088struct socket * tcp_listen(Slirp *, uint32_t, u_int, uint32_t, u_int,
Blue Swirl6cb9c6d2009-07-01 19:11:17 +000089 int);
90void soisfconnecting(register struct socket *);
91void soisfconnected(register struct socket *);
92void sofwdrain(struct socket *);
blueswir1b9e82a52009-04-05 18:03:31 +000093struct iovec; /* For win32 */
aliguorie1c5a2b2009-01-08 19:18:21 +000094size_t sopreprbuf(struct socket *so, struct iovec *iov, int *np);
95int soreadbuf(struct socket *so, const char *buf, int size);
bellardf0cbd3e2004-04-22 00:10:48 +000096
97#endif /* _SOCKET_H_ */