2 * Copyright (c) 1995 Danny Gasparovski.
4 * Please read the file COPYRIGHT for the
5 * terms and conditions of the copyright.
13 #define SO_EXPIRE 240000
14 #define SO_EXPIREFAST 10000
17 * Our socket structure
20 union slirp_sockaddr
{
21 struct sockaddr_storage ss
;
22 struct sockaddr_in sin
;
23 struct sockaddr_in6 sin6
;
27 struct socket
*so_next
,*so_prev
; /* For a linked list of sockets */
29 int s
; /* The actual socket */
30 struct gfwd_list
*guestfwd
;
32 int pollfds_idx
; /* GPollFD GArray index */
34 Slirp
*slirp
; /* managing slirp instance */
36 /* XXX union these with not-yet-used sbuf params */
37 struct mbuf
*so_m
; /* Pointer to the original SYN packet,
38 * for non-blocking connect()'s, and
40 struct tcpiphdr
*so_ti
; /* Pointer to the original ti within
41 * so_mconn, for non-blocking connections */
43 union slirp_sockaddr fhost
; /* Foreign host */
44 #define so_faddr fhost.sin.sin_addr
45 #define so_fport fhost.sin.sin_port
46 #define so_faddr6 fhost.sin6.sin6_addr
47 #define so_fport6 fhost.sin6.sin6_port
48 #define so_ffamily fhost.ss.ss_family
50 union slirp_sockaddr lhost
; /* Local host */
51 #define so_laddr lhost.sin.sin_addr
52 #define so_lport lhost.sin.sin_port
53 #define so_laddr6 lhost.sin6.sin6_addr
54 #define so_lport6 lhost.sin6.sin6_port
55 #define so_lfamily lhost.ss.ss_family
57 uint8_t so_iptos
; /* Type of service */
58 uint8_t so_emu
; /* Is the socket emulated? */
60 uint8_t so_type
; /* Type of socket, UDP or TCP */
61 int32_t so_state
; /* internal state flags SS_*, below */
63 struct tcpcb
*so_tcpcb
; /* pointer to TCP protocol control block */
64 u_int so_expire
; /* When the socket will expire */
66 int so_queued
; /* Number of packets queued from this socket */
67 int so_nqueued
; /* Number of packets queued in a row
68 * Used to determine when to "downgrade" a session
69 * from fastq to batchq */
71 struct sbuf so_rcv
; /* Receive buffer */
72 struct sbuf so_snd
; /* Send buffer */
77 * Socket state bits. (peer means the host on the Internet,
78 * local host means the host on the other end of the modem)
80 #define SS_NOFDREF 0x001 /* No fd reference */
82 #define SS_ISFCONNECTING 0x002 /* Socket is connecting to peer (non-blocking connect()'s) */
83 #define SS_ISFCONNECTED 0x004 /* Socket is connected to peer */
84 #define SS_FCANTRCVMORE 0x008 /* Socket can't receive more from peer (for half-closes) */
85 #define SS_FCANTSENDMORE 0x010 /* Socket can't send more to peer (for half-closes) */
86 #define SS_FWDRAIN 0x040 /* We received a FIN, drain data and set SS_FCANTSENDMORE */
89 #define SS_FACCEPTCONN 0x100 /* Socket is accepting connections from a host on the internet */
90 #define SS_FACCEPTONCE 0x200 /* If set, the SS_FACCEPTCONN socket will die after one accept */
92 #define SS_PERSISTENT_MASK 0xf000 /* Unremovable state bits */
93 #define SS_HOSTFWD 0x1000 /* Socket describes host->guest forwarding */
94 #define SS_INCOMING 0x2000 /* Connection was initiated by a host on the internet */
96 static inline int sockaddr_equal(struct sockaddr_storage
*a
,
97 struct sockaddr_storage
*b
)
99 if (a
->ss_family
!= b
->ss_family
) {
103 switch (a
->ss_family
) {
106 struct sockaddr_in
*a4
= (struct sockaddr_in
*) a
;
107 struct sockaddr_in
*b4
= (struct sockaddr_in
*) b
;
108 return a4
->sin_addr
.s_addr
== b4
->sin_addr
.s_addr
109 && a4
->sin_port
== b4
->sin_port
;
113 struct sockaddr_in6
*a6
= (struct sockaddr_in6
*) a
;
114 struct sockaddr_in6
*b6
= (struct sockaddr_in6
*) b
;
115 return (in6_equal(&a6
->sin6_addr
, &b6
->sin6_addr
)
116 && a6
->sin6_port
== b6
->sin6_port
);
119 g_assert_not_reached();
125 static inline socklen_t
sockaddr_size(struct sockaddr_storage
*a
)
127 switch (a
->ss_family
) {
129 return sizeof(struct sockaddr_in
);
131 return sizeof(struct sockaddr_in6
);
133 g_assert_not_reached();
137 struct socket
*solookup(struct socket
**, struct socket
*,
138 struct sockaddr_storage
*, struct sockaddr_storage
*);
139 struct socket
*socreate(Slirp
*);
140 void sofree(struct socket
*);
141 int soread(struct socket
*);
142 int sorecvoob(struct socket
*);
143 int sosendoob(struct socket
*);
144 int sowrite(struct socket
*);
145 void sorecvfrom(struct socket
*);
146 int sosendto(struct socket
*, struct mbuf
*);
147 struct socket
* tcp_listen(Slirp
*, uint32_t, u_int
, uint32_t, u_int
,
149 void soisfconnecting(register struct socket
*);
150 void soisfconnected(register struct socket
*);
151 void sofwdrain(struct socket
*);
152 struct iovec
; /* For win32 */
153 size_t sopreprbuf(struct socket
*so
, struct iovec
*iov
, int *np
);
154 int soreadbuf(struct socket
*so
, const char *buf
, int size
);
156 void sotranslate_out(struct socket
*, struct sockaddr_storage
*);
157 void sotranslate_in(struct socket
*, struct sockaddr_storage
*);
158 void sotranslate_accept(struct socket
*);
161 #endif /* SLIRP_SOCKET_H */