460fec67ee
The essence of this patch is to stuff (almost) all global variables of the slirp stack into the structure Slirp. In this step, we still keep the structure as global variable, directly accessible by the whole stack. Changes to the external interface of slirp will be applied in the following patches. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
96 lines
3.5 KiB
C
96 lines
3.5 KiB
C
/*
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* Copyright (c) 1995 Danny Gasparovski.
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*
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* Please read the file COPYRIGHT for the
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* terms and conditions of the copyright.
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*/
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#ifndef _SLIRP_SOCKET_H_
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#define _SLIRP_SOCKET_H_
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#define SO_EXPIRE 240000
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#define SO_EXPIREFAST 10000
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/*
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* Our socket structure
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*/
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struct socket {
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struct socket *so_next,*so_prev; /* For a linked list of sockets */
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int s; /* The actual socket */
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Slirp *slirp; /* managing slirp instance */
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/* XXX union these with not-yet-used sbuf params */
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struct mbuf *so_m; /* Pointer to the original SYN packet,
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* for non-blocking connect()'s, and
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* PING reply's */
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struct tcpiphdr *so_ti; /* Pointer to the original ti within
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* so_mconn, for non-blocking connections */
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int so_urgc;
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struct in_addr so_faddr; /* foreign host table entry */
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struct in_addr so_laddr; /* local host table entry */
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u_int16_t so_fport; /* foreign port */
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u_int16_t so_lport; /* local port */
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u_int8_t so_iptos; /* Type of service */
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u_int8_t so_emu; /* Is the socket emulated? */
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u_char so_type; /* Type of socket, UDP or TCP */
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int so_state; /* internal state flags SS_*, below */
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struct tcpcb *so_tcpcb; /* pointer to TCP protocol control block */
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u_int so_expire; /* When the socket will expire */
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int so_queued; /* Number of packets queued from this socket */
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int so_nqueued; /* Number of packets queued in a row
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* Used to determine when to "downgrade" a session
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* from fastq to batchq */
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struct sbuf so_rcv; /* Receive buffer */
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struct sbuf so_snd; /* Send buffer */
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void * extra; /* Extra pointer */
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};
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/*
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* Socket state bits. (peer means the host on the Internet,
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* local host means the host on the other end of the modem)
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*/
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#define SS_NOFDREF 0x001 /* No fd reference */
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#define SS_ISFCONNECTING 0x002 /* Socket is connecting to peer (non-blocking connect()'s) */
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#define SS_ISFCONNECTED 0x004 /* Socket is connected to peer */
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#define SS_FCANTRCVMORE 0x008 /* Socket can't receive more from peer (for half-closes) */
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#define SS_FCANTSENDMORE 0x010 /* Socket can't send more to peer (for half-closes) */
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#define SS_FWDRAIN 0x040 /* We received a FIN, drain data and set SS_FCANTSENDMORE */
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#define SS_CTL 0x080
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#define SS_FACCEPTCONN 0x100 /* Socket is accepting connections from a host on the internet */
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#define SS_FACCEPTONCE 0x200 /* If set, the SS_FACCEPTCONN socket will die after one accept */
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#define SS_PERSISTENT_MASK 0xf000 /* Unremovable state bits */
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#define SS_HOSTFWD 0x1000 /* Socket describes host->guest forwarding */
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#define SS_INCOMING 0x2000 /* Connection was initiated by a host on the internet */
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struct socket * solookup _P((struct socket *, struct in_addr, u_int, struct in_addr, u_int));
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struct socket * socreate _P((Slirp *));
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void sofree _P((struct socket *));
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int soread _P((struct socket *));
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void sorecvoob _P((struct socket *));
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int sosendoob _P((struct socket *));
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int sowrite _P((struct socket *));
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void sorecvfrom _P((struct socket *));
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int sosendto _P((struct socket *, struct mbuf *));
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struct socket * tcp_listen _P((Slirp *, u_int32_t, u_int, u_int32_t, u_int,
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int));
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void soisfconnecting _P((register struct socket *));
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void soisfconnected _P((register struct socket *));
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void sofwdrain _P((struct socket *));
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struct iovec; /* For win32 */
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size_t sopreprbuf(struct socket *so, struct iovec *iov, int *np);
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int soreadbuf(struct socket *so, const char *buf, int size);
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#endif /* _SOCKET_H_ */
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