bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 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 | |
| 77 | #if defined(DECLARE_IOVEC) && !defined(HAVE_READV) |
| 78 | struct iovec { |
| 79 | char *iov_base; |
| 80 | size_t iov_len; |
| 81 | }; |
| 82 | #endif |
| 83 | |
| 84 | void so_init _P((void)); |
| 85 | struct socket * solookup _P((struct socket *, struct in_addr, u_int, struct in_addr, u_int)); |
| 86 | struct socket * socreate _P((void)); |
| 87 | void sofree _P((struct socket *)); |
| 88 | int soread _P((struct socket *)); |
| 89 | void sorecvoob _P((struct socket *)); |
| 90 | int sosendoob _P((struct socket *)); |
| 91 | int sowrite _P((struct socket *)); |
| 92 | void sorecvfrom _P((struct socket *)); |
| 93 | int sosendto _P((struct socket *, struct mbuf *)); |
| 94 | struct socket * solisten _P((u_int, u_int32_t, u_int, int)); |
| 95 | void sorwakeup _P((struct socket *)); |
| 96 | void sowwakeup _P((struct socket *)); |
| 97 | void soisfconnecting _P((register struct socket *)); |
| 98 | void soisfconnected _P((register struct socket *)); |
| 99 | void sofcantrcvmore _P((struct socket *)); |
| 100 | void sofcantsendmore _P((struct socket *)); |
| 101 | void soisfdisconnected _P((struct socket *)); |
| 102 | void sofwdrain _P((struct socket *)); |
| 103 | |
| 104 | #endif /* _SOCKET_H_ */ |