acl: fix memory leak
[qemu.git] / slirp / socket.h
1 /*
2 * Copyright (c) 1995 Danny Gasparovski.
3 *
4 * Please read the file COPYRIGHT for the
5 * terms and conditions of the copyright.
6 */
7
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
23 int pollfds_idx; /* GPollFD GArray index */
24
25 Slirp *slirp; /* managing slirp instance */
26
27 /* 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 */
36 uint16_t so_fport; /* foreign port */
37 uint16_t so_lport; /* local port */
38
39 uint8_t so_iptos; /* Type of service */
40 uint8_t so_emu; /* Is the socket emulated? */
41
42 u_char so_type; /* Type of socket, UDP or TCP */
43 int so_state; /* internal state flags SS_*, below */
44
45 struct tcpcb *so_tcpcb; /* pointer to TCP protocol control block */
46 u_int so_expire; /* When the socket will expire */
47
48 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 */
52
53 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) */
69 #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
75 #define SS_PERSISTENT_MASK 0xf000 /* Unremovable state bits */
76 #define SS_HOSTFWD 0x1000 /* Socket describes host->guest forwarding */
77 #define SS_INCOMING 0x2000 /* Connection was initiated by a host on the internet */
78
79 struct socket * solookup(struct socket *, struct in_addr, u_int, struct in_addr, u_int);
80 struct socket * socreate(Slirp *);
81 void sofree(struct socket *);
82 int soread(struct socket *);
83 void sorecvoob(struct socket *);
84 int sosendoob(struct socket *);
85 int sowrite(struct socket *);
86 void sorecvfrom(struct socket *);
87 int sosendto(struct socket *, struct mbuf *);
88 struct socket * tcp_listen(Slirp *, uint32_t, u_int, uint32_t, u_int,
89 int);
90 void soisfconnecting(register struct socket *);
91 void soisfconnected(register struct socket *);
92 void sofwdrain(struct socket *);
93 struct iovec; /* For win32 */
94 size_t sopreprbuf(struct socket *so, struct iovec *iov, int *np);
95 int soreadbuf(struct socket *so, const char *buf, int size);
96
97 #endif /* _SOCKET_H_ */