8a87f121ca
This patch makes solookup() compatible with varying address families, by using a new sockaddr_equal() function that compares two sockaddr_storage. This prepares for IPv6 support. Signed-off-by: Guillaume Subiron <maethor@subiron.org> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
137 lines
4.4 KiB
C
137 lines
4.4 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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int pollfds_idx; /* GPollFD GArray index */
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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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union { /* foreign host */
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struct sockaddr_storage ss;
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struct sockaddr_in sin;
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} fhost;
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#define so_faddr fhost.sin.sin_addr
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#define so_fport fhost.sin.sin_port
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#define so_ffamily fhost.ss.ss_family
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union { /* local host */
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struct sockaddr_storage ss;
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struct sockaddr_in sin;
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} lhost;
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#define so_laddr lhost.sin.sin_addr
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#define so_lport lhost.sin.sin_port
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#define so_lfamily lhost.ss.ss_family
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uint8_t so_iptos; /* Type of service */
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uint8_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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static inline int sockaddr_equal(struct sockaddr_storage *a,
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struct sockaddr_storage *b)
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{
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if (a->ss_family != b->ss_family) {
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return 0;
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}
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switch (a->ss_family) {
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case AF_INET:
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{
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struct sockaddr_in *a4 = (struct sockaddr_in *) a;
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struct sockaddr_in *b4 = (struct sockaddr_in *) b;
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return a4->sin_addr.s_addr == b4->sin_addr.s_addr
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&& a4->sin_port == b4->sin_port;
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}
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default:
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g_assert_not_reached();
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}
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return 0;
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}
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struct socket *solookup(struct socket **, struct socket *,
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struct sockaddr_storage *, struct sockaddr_storage *);
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struct socket *socreate(Slirp *);
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void sofree(struct socket *);
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int soread(struct socket *);
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void sorecvoob(struct socket *);
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int sosendoob(struct socket *);
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int sowrite(struct socket *);
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void sorecvfrom(struct socket *);
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int sosendto(struct socket *, struct mbuf *);
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struct socket * tcp_listen(Slirp *, uint32_t, u_int, uint32_t, u_int,
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int);
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void soisfconnecting(register struct socket *);
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void soisfconnected(register struct socket *);
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void sofwdrain(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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void sotranslate_out(struct socket *, struct sockaddr_storage *);
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void sotranslate_in(struct socket *, struct sockaddr_storage *);
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void sotranslate_accept(struct socket *);
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#endif /* _SOCKET_H_ */
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