| /* |
| * Copyright (c) 1995 Danny Gasparovski. |
| * |
| * Please read the file COPYRIGHT for the |
| * terms and conditions of the copyright. |
| */ |
| |
| #ifndef _SLIRP_SOCKET_H_ |
| #define _SLIRP_SOCKET_H_ |
| |
| #define SO_EXPIRE 240000 |
| #define SO_EXPIREFAST 10000 |
| |
| /* |
| * Our socket structure |
| */ |
| |
| struct socket { |
| struct socket *so_next,*so_prev; /* For a linked list of sockets */ |
| |
| int s; /* The actual socket */ |
| |
| int pollfds_idx; /* GPollFD GArray index */ |
| |
| Slirp *slirp; /* managing slirp instance */ |
| |
| /* XXX union these with not-yet-used sbuf params */ |
| struct mbuf *so_m; /* Pointer to the original SYN packet, |
| * for non-blocking connect()'s, and |
| * PING reply's */ |
| struct tcpiphdr *so_ti; /* Pointer to the original ti within |
| * so_mconn, for non-blocking connections */ |
| int so_urgc; |
| struct in_addr so_faddr; /* foreign host table entry */ |
| struct in_addr so_laddr; /* local host table entry */ |
| uint16_t so_fport; /* foreign port */ |
| uint16_t so_lport; /* local port */ |
| |
| uint8_t so_iptos; /* Type of service */ |
| uint8_t so_emu; /* Is the socket emulated? */ |
| |
| u_char so_type; /* Type of socket, UDP or TCP */ |
| int so_state; /* internal state flags SS_*, below */ |
| |
| struct tcpcb *so_tcpcb; /* pointer to TCP protocol control block */ |
| u_int so_expire; /* When the socket will expire */ |
| |
| int so_queued; /* Number of packets queued from this socket */ |
| int so_nqueued; /* Number of packets queued in a row |
| * Used to determine when to "downgrade" a session |
| * from fastq to batchq */ |
| |
| struct sbuf so_rcv; /* Receive buffer */ |
| struct sbuf so_snd; /* Send buffer */ |
| void * extra; /* Extra pointer */ |
| }; |
| |
| |
| /* |
| * Socket state bits. (peer means the host on the Internet, |
| * local host means the host on the other end of the modem) |
| */ |
| #define SS_NOFDREF 0x001 /* No fd reference */ |
| |
| #define SS_ISFCONNECTING 0x002 /* Socket is connecting to peer (non-blocking connect()'s) */ |
| #define SS_ISFCONNECTED 0x004 /* Socket is connected to peer */ |
| #define SS_FCANTRCVMORE 0x008 /* Socket can't receive more from peer (for half-closes) */ |
| #define SS_FCANTSENDMORE 0x010 /* Socket can't send more to peer (for half-closes) */ |
| #define SS_FWDRAIN 0x040 /* We received a FIN, drain data and set SS_FCANTSENDMORE */ |
| |
| #define SS_CTL 0x080 |
| #define SS_FACCEPTCONN 0x100 /* Socket is accepting connections from a host on the internet */ |
| #define SS_FACCEPTONCE 0x200 /* If set, the SS_FACCEPTCONN socket will die after one accept */ |
| #define SS_PROXIFIED 0x400 /* Socket is trying to connect through a proxy, only makes sense |
| when SS_ISFCONNECTING is also set */ |
| |
| #define SS_PERSISTENT_MASK 0xf000 /* Unremovable state bits */ |
| #define SS_HOSTFWD 0x1000 /* Socket describes host->guest forwarding */ |
| #define SS_INCOMING 0x2000 /* Connection was initiated by a host on the internet */ |
| |
| struct socket * solookup(struct socket *, struct in_addr, u_int, struct in_addr, u_int); |
| struct socket * socreate(Slirp *); |
| void sofree(struct socket *); |
| int soread(struct socket *); |
| void sorecvoob(struct socket *); |
| int sosendoob(struct socket *); |
| int sowrite(struct socket *); |
| void sorecvfrom(struct socket *); |
| int sosendto(struct socket *, struct mbuf *); |
| struct socket * tcp_listen(Slirp *, uint32_t, u_int, uint32_t, u_int, |
| int); |
| void soisfconnecting(register struct socket *); |
| void soisfconnected(register struct socket *); |
| void sofwdrain(struct socket *); |
| struct iovec; /* For win32 */ |
| size_t sopreprbuf(struct socket *so, struct iovec *iov, int *np); |
| int soreadbuf(struct socket *so, const char *buf, int size); |
| |
| #endif /* _SOCKET_H_ */ |