|
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 /* MINE */ |
|
9 |
|
10 #ifndef _SLIRP_SOCKET_H_ |
|
11 #define _SLIRP_SOCKET_H_ |
|
12 |
|
13 #define SO_EXPIRE 240000 |
|
14 #define SO_EXPIREFAST 10000 |
|
15 |
|
16 /* |
|
17 * Our socket structure |
|
18 */ |
|
19 |
|
20 struct socket { |
|
21 struct socket *so_next,*so_prev; /* For a linked list of sockets */ |
|
22 |
|
23 int s; /* The actual socket */ |
|
24 |
|
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 |
|
28 * PING reply's */ |
|
29 struct tcpiphdr *so_ti; /* Pointer to the original ti within |
|
30 * so_mconn, for non-blocking connections */ |
|
31 int so_urgc; |
|
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 */ |
|
36 |
|
37 u_int8_t so_iptos; /* Type of service */ |
|
38 u_int8_t so_emu; /* Is the socket emulated? */ |
|
39 |
|
40 u_char so_type; /* Type of socket, UDP or TCP */ |
|
41 int so_state; /* internal state flags SS_*, below */ |
|
42 |
|
43 struct tcpcb *so_tcpcb; /* pointer to TCP protocol control block */ |
|
44 u_int so_expire; /* When the socket will expire */ |
|
45 |
|
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 */ |
|
50 |
|
51 struct sbuf so_rcv; /* Receive buffer */ |
|
52 struct sbuf so_snd; /* Send buffer */ |
|
53 void * extra; /* Extra pointer */ |
|
54 }; |
|
55 |
|
56 |
|
57 /* |
|
58 * Socket state bits. (peer means the host on the Internet, |
|
59 * local host means the host on the other end of the modem) |
|
60 */ |
|
61 #define SS_NOFDREF 0x001 /* No fd reference */ |
|
62 |
|
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_ISFDISCONNECTED 0x020*/ /* Socket has disconnected from peer, in 2MSL state */ |
|
68 #define SS_FWDRAIN 0x040 /* We received a FIN, drain data and set SS_FCANTSENDMORE */ |
|
69 |
|
70 #define SS_CTL 0x080 |
|
71 #define SS_FACCEPTCONN 0x100 /* Socket is accepting connections from a host on the internet */ |
|
72 #define SS_FACCEPTONCE 0x200 /* If set, the SS_FACCEPTCONN socket will die after one accept */ |
|
73 |
|
74 extern struct socket tcb; |
|
75 |
|
76 struct socket * solookup _P((struct socket *, struct in_addr, u_int, struct in_addr, u_int)); |
|
77 struct socket * socreate _P((void)); |
|
78 void sofree _P((struct socket *)); |
|
79 int soread _P((struct socket *)); |
|
80 void sorecvoob _P((struct socket *)); |
|
81 int sosendoob _P((struct socket *)); |
|
82 int sowrite _P((struct socket *)); |
|
83 void sorecvfrom _P((struct socket *)); |
|
84 int sosendto _P((struct socket *, struct mbuf *)); |
|
85 struct socket * solisten _P((u_int, u_int32_t, u_int, int)); |
|
86 void soisfconnecting _P((register struct socket *)); |
|
87 void soisfconnected _P((register struct socket *)); |
|
88 void soisfdisconnected _P((struct socket *)); |
|
89 void sofwdrain _P((struct socket *)); |
|
90 |
|
91 #endif /* _SOCKET_H_ */ |