| 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 | {
|
|---|
| 22 | struct socket *so_next;
|
|---|
| 23 | struct socket *so_prev; /* For a linked list of sockets */
|
|---|
| 24 |
|
|---|
| 25 | #ifndef RT_OS_WINDOWS
|
|---|
| 26 | int s; /* The actual socket */
|
|---|
| 27 | #else
|
|---|
| 28 | union {
|
|---|
| 29 | int s;
|
|---|
| 30 | HANDLE sh;
|
|---|
| 31 | };
|
|---|
| 32 | #endif
|
|---|
| 33 |
|
|---|
| 34 | /* XXX union these with not-yet-used sbuf params */
|
|---|
| 35 | struct mbuf *so_m; /* Pointer to the original SYN packet,
|
|---|
| 36 | * for non-blocking connect()'s, and
|
|---|
| 37 | * PING reply's */
|
|---|
| 38 | struct tcpiphdr *so_ti; /* Pointer to the original ti within
|
|---|
| 39 | * so_mconn, for non-blocking connections */
|
|---|
| 40 | int so_urgc;
|
|---|
| 41 | struct in_addr so_faddr; /* foreign host table entry */
|
|---|
| 42 | struct in_addr so_laddr; /* local host table entry */
|
|---|
| 43 | u_int16_t so_fport; /* foreign port */
|
|---|
| 44 | u_int16_t so_lport; /* local port */
|
|---|
| 45 |
|
|---|
| 46 | u_int8_t so_iptos; /* Type of service */
|
|---|
| 47 | u_int8_t so_emu; /* Is the socket emulated? */
|
|---|
| 48 |
|
|---|
| 49 | u_char so_type; /* Type of socket, UDP or TCP */
|
|---|
| 50 | int so_state; /* internal state flags SS_*, below */
|
|---|
| 51 |
|
|---|
| 52 | struct tcpcb *so_tcpcb; /* pointer to TCP protocol control block */
|
|---|
| 53 | u_int so_expire; /* When the socket will expire */
|
|---|
| 54 |
|
|---|
| 55 | int so_queued; /* Number of packets queued from this socket */
|
|---|
| 56 | int so_nqueued; /* Number of packets queued in a row
|
|---|
| 57 | * Used to determine when to "downgrade" a session
|
|---|
| 58 | * from fastq to batchq */
|
|---|
| 59 |
|
|---|
| 60 | struct sbuf so_rcv; /* Receive buffer */
|
|---|
| 61 | struct sbuf so_snd; /* Send buffer */
|
|---|
| 62 | };
|
|---|
| 63 |
|
|---|
| 64 |
|
|---|
| 65 | /*
|
|---|
| 66 | * Socket state bits. (peer means the host on the Internet,
|
|---|
| 67 | * local host means the host on the other end of the modem)
|
|---|
| 68 | */
|
|---|
| 69 | #define SS_NOFDREF 0x001 /* No fd reference */
|
|---|
| 70 |
|
|---|
| 71 | #define SS_ISFCONNECTING 0x002 /* Socket is connecting to peer (non-blocking connect()'s) */
|
|---|
| 72 | #define SS_ISFCONNECTED 0x004 /* Socket is connected to peer */
|
|---|
| 73 | #define SS_FCANTRCVMORE 0x008 /* Socket can't receive more from peer (for half-closes) */
|
|---|
| 74 | #define SS_FCANTSENDMORE 0x010 /* Socket can't send more to peer (for half-closes) */
|
|---|
| 75 | /* #define SS_ISFDISCONNECTED 0x020*/ /* Socket has disconnected from peer, in 2MSL state */
|
|---|
| 76 | #define SS_FWDRAIN 0x040 /* We received a FIN, drain data and set SS_FCANTSENDMORE */
|
|---|
| 77 |
|
|---|
| 78 | /* #define SS_CTL 0x080 */
|
|---|
| 79 | #define SS_FACCEPTCONN 0x100 /* Socket is accepting connections from a host on the internet */
|
|---|
| 80 | #define SS_FACCEPTONCE 0x200 /* If set, the SS_FACCEPTCONN socket will die after one accept */
|
|---|
| 81 |
|
|---|
| 82 | extern struct socket tcb;
|
|---|
| 83 |
|
|---|
| 84 | #if defined(DECLARE_IOVEC) && !defined(HAVE_READV)
|
|---|
| 85 | struct iovec
|
|---|
| 86 | {
|
|---|
| 87 | char *iov_base;
|
|---|
| 88 | size_t iov_len;
|
|---|
| 89 | };
|
|---|
| 90 | #endif
|
|---|
| 91 |
|
|---|
| 92 | void so_init _P((void));
|
|---|
| 93 | struct socket * solookup _P((struct socket *, struct in_addr, u_int, struct in_addr, u_int));
|
|---|
| 94 | struct socket * socreate _P((void));
|
|---|
| 95 | void sofree _P((PNATState, struct socket *));
|
|---|
| 96 | int soread _P((PNATState, struct socket *));
|
|---|
| 97 | void sorecvoob _P((PNATState, struct socket *));
|
|---|
| 98 | int sosendoob _P((struct socket *));
|
|---|
| 99 | int sowrite _P((PNATState, struct socket *));
|
|---|
| 100 | void sorecvfrom _P((PNATState, struct socket *));
|
|---|
| 101 | int sosendto _P((PNATState, struct socket *, struct mbuf *));
|
|---|
| 102 | struct socket * solisten _P((PNATState, u_int, u_int32_t, u_int, int));
|
|---|
| 103 | void sorwakeup _P((struct socket *));
|
|---|
| 104 | void sowwakeup _P((struct socket *));
|
|---|
| 105 | void soisfconnecting _P((register struct socket *));
|
|---|
| 106 | void soisfconnected _P((register struct socket *));
|
|---|
| 107 | void sofcantrcvmore _P((struct socket *));
|
|---|
| 108 | void sofcantsendmore _P((struct socket *));
|
|---|
| 109 | void soisfdisconnected _P((struct socket *));
|
|---|
| 110 | void sofwdrain _P((struct socket *));
|
|---|
| 111 |
|
|---|
| 112 | #endif /* _SOCKET_H_ */
|
|---|
