VirtualBox

source: vbox/trunk/src/VBox/Devices/Network/slirp/socket.h@ 27848

Last change on this file since 27848 was 26423, checked in by vboxsync, 15 years ago

NAT: some fewer AssertRelease*
  • Property svn:eol-style set to native
File size: 6.8 KB
Line 
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#ifdef VBOX_WITH_SLIRP_MT
13#include <iprt/critsect.h>
14#endif
15
16#define SO_EXPIRE 240000
17#define SO_EXPIREFAST 10000
18
19/*
20 * Our socket structure
21 */
22
23struct socket
24{
25 struct socket *so_next;
26 struct socket *so_prev; /* For a linked list of sockets */
27
28#if !defined(RT_OS_WINDOWS)
29 int s; /* The actual socket */
30#else
31 union {
32 int s;
33 HANDLE sh;
34 };
35 uint64_t so_icmp_id; /* XXX: hack */
36 uint64_t so_icmp_seq; /* XXX: hack */
37#endif
38
39 /* XXX union these with not-yet-used sbuf params */
40 struct mbuf *so_m; /* Pointer to the original SYN packet,
41 * for non-blocking connect()'s, and
42 * PING reply's */
43 struct tcpiphdr *so_ti; /* Pointer to the original ti within
44 * so_mconn, for non-blocking connections */
45 int so_urgc;
46 struct in_addr so_faddr; /* foreign host table entry */
47 struct in_addr so_laddr; /* local host table entry */
48 u_int16_t so_fport; /* foreign port */
49 u_int16_t so_lport; /* local port */
50 u_int16_t so_hlport; /* host local port */
51 struct in_addr so_hladdr; /* local host addr */
52
53 u_int8_t so_iptos; /* Type of service */
54 u_int8_t so_emu; /* Is the socket emulated? */
55
56 u_char so_type; /* Type of socket, UDP or TCP */
57 int so_state; /* internal state flags SS_*, below */
58
59 struct tcpcb *so_tcpcb; /* pointer to TCP protocol control block */
60 u_int so_expire; /* When the socket will expire */
61
62 int so_queued; /* Number of packets queued from this socket */
63 int so_nqueued; /* Number of packets queued in a row
64 * Used to determine when to "downgrade" a session
65 * from fastq to batchq */
66
67 struct sbuf so_rcv; /* Receive buffer */
68 struct sbuf so_snd; /* Send buffer */
69#ifdef VBOX_WITH_SLIRP_MT
70 RTCRITSECT so_mutex;
71 int so_deleted;
72#endif
73#ifndef RT_OS_WINDOWS
74 int so_poll_index;
75#else /* !RT_OS_WINDOWS */
76 /*
77 * FD_CLOSE event has been occurred on socket
78 */
79 int so_close;
80#endif /* RT_OS_WINDOWS */
81
82 void (* so_timeout)(PNATState pData, struct socket *so, void *arg);
83 void *so_timeout_arg;
84
85#ifdef VBOX_WITH_NAT_SERVICE
86 /* storage of source ether address */
87 unsigned char so_ethaddr[6];
88#endif
89 /* required for port-forwarding */
90 struct libalias *so_la;
91};
92
93#ifdef VBOX_WITH_SLIRP_MT
94# define SOCKET_LOCK(so) \
95 do { \
96 int rc; \
97 /* Assert(strcmp(RTThreadSelfName(), "EMT") != 0); */ \
98 Log2(("lock:%s:%d L on %R[natsock]\n", __FUNCTION__, __LINE__, (so))); \
99 Assert(!RTCritSectIsOwner(&(so)->so_mutex)); \
100 rc = RTCritSectEnter(&(so)->so_mutex); \
101 AssertRC(rc); \
102 } while (0)
103# define SOCKET_UNLOCK(so) \
104 do { \
105 int rc; \
106 if ((so) != NULL) Log2(("lock:%s:%d U on %R[natsock]\n", __FUNCTION__, __LINE__, (so))); \
107 rc = RTCritSectLeave(&(so)->so_mutex); \
108 Assert(rc); \
109 } while (0)
110# define SOCKET_LOCK_CREATE(so) \
111 do { \
112 int rc; \
113 rc = RTCritSectInit(&(so)->so_mutex); \
114 AssertRC(rc); \
115 } while (0)
116# define SOCKET_LOCK_DESTROY(so) \
117 do { \
118 int rc = RTCritSectDelete(&(so)->so_mutex); \
119 AssertRC(rc); \
120 } while (0)
121#else
122# define SOCKET_LOCK(so) do {} while (0)
123# define SOCKET_UNLOCK(so) do {} while (0)
124# define SOCKET_LOCK_CREATE(so) do {} while (0)
125# define SOCKET_LOCK_DESTROY(so) do {} while (0)
126#endif
127/*
128 * Socket state bits. (peer means the host on the Internet,
129 * local host means the host on the other end of the modem)
130 */
131#define SS_NOFDREF 0x001 /* No fd reference */
132
133#define SS_ISFCONNECTING 0x002 /* Socket is connecting to peer (non-blocking connect()'s) */
134#define SS_ISFCONNECTED 0x004 /* Socket is connected to peer */
135#define SS_FCANTRCVMORE 0x008 /* Socket can't receive more from peer (for half-closes) */
136#define SS_FCANTSENDMORE 0x010 /* Socket can't send more to peer (for half-closes) */
137/* #define SS_ISFDISCONNECTED 0x020*/ /* Socket has disconnected from peer, in 2MSL state */
138#define SS_FWDRAIN 0x040 /* We received a FIN, drain data and set SS_FCANTSENDMORE */
139
140/* #define SS_CTL 0x080 */
141#define SS_FACCEPTCONN 0x100 /* Socket is accepting connections from a host on the internet */
142#define SS_FACCEPTONCE 0x200 /* If set, the SS_FACCEPTCONN socket will die after one accept */
143
144extern struct socket tcb;
145
146#if defined(DECLARE_IOVEC) && !defined(HAVE_READV)
147struct iovec
148{
149 char *iov_base;
150 size_t iov_len;
151};
152#endif
153
154void so_init (void);
155struct socket * solookup (struct socket *, struct in_addr, u_int, struct in_addr, u_int);
156struct socket * socreate (void);
157void sofree (PNATState, struct socket *);
158#ifdef VBOX_WITH_SLIRP_MT
159void soread_queue (PNATState, struct socket *, int *);
160#endif
161int soread (PNATState, struct socket *);
162void sorecvoob (PNATState, struct socket *);
163int sosendoob (struct socket *);
164int sowrite (PNATState, struct socket *);
165void sorecvfrom (PNATState, struct socket *);
166int sosendto (PNATState, struct socket *, struct mbuf *);
167struct socket * solisten (PNATState, u_int32_t, u_int, u_int32_t, u_int, int);
168void sorwakeup (struct socket *);
169void sowwakeup (struct socket *);
170void soisfconnecting (register struct socket *);
171void soisfconnected (register struct socket *);
172void sofcantrcvmore (struct socket *);
173void sofcantsendmore (struct socket *);
174void soisfdisconnected (struct socket *);
175void sofwdrain (struct socket *);
176
177#endif /* _SOCKET_H_ */
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