VirtualBox

source: vbox/trunk/src/VBox/Devices/Network/slirp/slirp_state.h@ 16303

Last change on this file since 16303 was 16292, checked in by vboxsync, 16 years ago

NAT:MT cosmetic
  • Property svn:eol-style set to native
File size: 10.3 KB
Line 
1/** @file
2 * NAT state/configuration.
3 */
4
5/*
6 * Copyright (C) 2006-2007 Sun Microsystems, Inc.
7 *
8 * This file is part of VirtualBox Open Source Edition (OSE), as
9 * available from http://www.virtualbox.org. This file is free software;
10 * you can redistribute it and/or modify it under the terms of the GNU
11 * General Public License (GPL) as published by the Free Software
12 * Foundation, in version 2 as it comes in the "COPYING" file of the
13 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
14 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
15 *
16 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
17 * Clara, CA 95054 USA or visit http://www.sun.com if you need
18 * additional information or have any questions.
19 */
20
21#ifndef _slirp_state_h_
22#define _slirp_state_h_
23#include "ip_icmp.h"
24
25/** Number of DHCP clients supported by NAT. */
26#define NB_ADDR 16
27
28/** Where to start DHCP IP number allocation. */
29#define START_ADDR 15
30
31/** DHCP Lease time. */
32#define LEASE_TIME (24 * 3600)
33
34/** Entry in the table of known DHCP clients. */
35typedef struct
36{
37 bool allocated;
38 uint8_t macaddr[6];
39} BOOTPClient;
40
41
42/** TFTP session entry. */
43struct tftp_session
44{
45 int in_use;
46 unsigned char filename[TFTP_FILENAME_MAX];
47
48 struct in_addr client_ip;
49 u_int16_t client_port;
50
51 int timestamp;
52};
53
54#ifdef VBOX_WITH_MULTI_DNS
55struct dns_entry
56{
57 struct in_addr de_addr;
58 LIST_ENTRY(dns_entry) de_list;
59};
60LIST_HEAD(dns_list_head, dns_entry);
61#endif
62
63/** Main state/configuration structure for slirp NAT. */
64typedef struct NATState
65{
66 /* Stuff from boot.c */
67 BOOTPClient bootp_clients[NB_ADDR];
68 const char *bootp_filename;
69 /* Stuff from if.c */
70 int if_mtu, if_mru;
71 int if_comp;
72 int if_maxlinkhdr;
73 int if_queued;
74 int if_thresh;
75 struct mbuf if_fastq;
76 struct mbuf if_batchq;
77 struct mbuf *next_m;
78 /* Stuff from icmp.c */
79 struct icmpstat_t icmpstat;
80 /* Stuff from ip_input.c */
81 struct ipstat_t ipstat;
82 struct ipqhead ipq[IPREASS_NHASH];
83 int maxnipq; /* Administrative limit on # of reass queues*/
84 int maxfragsperpacket; /* Maximum number of IPv4 fragments allowed per packet */
85 int nipq; /* total number of reass queues */
86 uint16_t ip_currid;
87 /* Stuff from mbuf.c */
88 int mbuf_alloced, mbuf_max;
89 int msize;
90 struct mbuf m_freelist, m_usedlist;
91 /* Stuff from slirp.c */
92 void *pvUser;
93 uint32_t curtime;
94 uint32_t time_fasttimo;
95 uint32_t last_slowtimo;
96 bool do_slowtimo;
97 bool link_up;
98 struct timeval tt;
99 struct in_addr our_addr;
100 struct in_addr alias_addr;
101 struct in_addr special_addr;
102#ifndef VBOX_WITH_MULTI_DNS
103 struct in_addr dns_addr;
104#else
105 struct dns_list_head dns_list_head;
106#endif
107 struct in_addr tftp_server;
108 struct in_addr loopback_addr;
109 uint32_t netmask;
110 uint8_t client_ethaddr[6];
111 struct ex_list *exec_list;
112 char slirp_hostname[33];
113 bool fPassDomain;
114 const char *pszDomain;
115 /* Stuff from tcp_input.c */
116 struct socket tcb;
117#ifdef VBOX_WITH_SLIRP_MT
118 RTSEMMUTEX tcb_mutex;
119#endif
120 struct socket *tcp_last_so;
121 tcp_seq tcp_iss;
122 /* Stuff from tcp_timer.c */
123 struct tcpstat_t tcpstat;
124 uint32_t tcp_now;
125 int tcp_reass_qsize;
126 int tcp_reass_maxqlen;
127 int tcp_reass_maxseg;
128 int tcp_reass_overflows;
129 /* Stuff from tftp.c */
130 struct tftp_session tftp_sessions[TFTP_SESSIONS_MAX];
131 const char *tftp_prefix;
132 /* Stuff from udp.c */
133 struct udpstat_t udpstat;
134 struct socket udb;
135#ifdef VBOX_WITH_SLIRP_MT
136 RTSEMMUTEX udb_mutex;
137#endif
138 struct socket *udp_last_so;
139 struct socket icmp_socket;
140 struct icmp_storage icmp_msg_head;
141# ifdef RT_OS_WINDOWS
142 void *pvIcmpBuffer;
143 size_t szIcmpBuffer;
144 /* Accordin MSDN specification IcmpParseReplies
145 * function should be detected in runtime
146 */
147 long (WINAPI * pfIcmpParseReplies)(void *, long);
148 BOOL (WINAPI * pfIcmpCloseHandle)(HANDLE);
149 HMODULE hmIcmpLibrary;
150# endif
151#if defined(VBOX_WITH_SIMPLIFIED_SLIRP_SYNC) && defined(RT_OS_WINDOWS)
152# define VBOX_SOCKET_EVENT (pData->phEvents[VBOX_SOCKET_EVENT_INDEX])
153 HANDLE phEvents[VBOX_EVENT_COUNT];
154#endif
155#if !defined(VBOX_WITH_SIMPLIFIED_SLIRP_SYNC) && defined(RT_OS_WINDOWS)
156 int fIcmp;
157#endif
158 STAMPROFILE StatFill;
159 STAMPROFILE StatPoll;
160 STAMPROFILE StatFastTimer;
161 STAMPROFILE StatSlowTimer;
162 STAMCOUNTER StatTCP;
163 STAMCOUNTER StatUDP;
164 STAMCOUNTER StatTCPHot;
165 STAMCOUNTER StatUDPHot;
166} NATState;
167
168
169/** Default IP time to live. */
170#define ip_defttl IPDEFTTL
171
172/** Number of permanent buffers in mbuf. */
173#define mbuf_thresh 30
174
175/** Use a fixed time before sending keepalive. */
176#define tcp_keepidle TCPTV_KEEP_IDLE
177
178/** Use a fixed interval between keepalive. */
179#define tcp_keepintvl TCPTV_KEEPINTVL
180
181/** Maximum idle time before timing out a connection. */
182#define tcp_maxidle (TCPTV_KEEPCNT * tcp_keepintvl)
183
184/** Default TCP socket options. */
185#define so_options DO_KEEPALIVE
186
187/** Default TCP MSS value. */
188#define tcp_mssdflt TCP_MSS
189
190/** Default TCP round trip time. */
191#define tcp_rttdflt (TCPTV_SRTTDFLT / PR_SLOWHZ)
192
193/** Enable RFC1323 performance enhancements.
194 * @todo check if it really works, it was turned off before. */
195#define tcp_do_rfc1323 1
196
197/** TCP receive buffer size. */
198#define tcp_rcvspace TCP_RCVSPACE
199
200/** TCP receive buffer size. */
201#define tcp_sndspace TCP_SNDSPACE
202
203/* TCP duplicate ACK retransmit threshold. */
204#define tcprexmtthresh 3
205
206
207#define bootp_filename pData->bootp_filename
208#define bootp_clients pData->bootp_clients
209
210#define if_mtu pData->if_mtu
211#define if_mru pData->if_mru
212#define if_comp pData->if_comp
213#define if_maxlinkhdr pData->if_maxlinkhdr
214#define if_queued pData->if_queued
215#define if_thresh pData->if_thresh
216#define if_fastq pData->if_fastq
217#define if_batchq pData->if_batchq
218#define next_m pData->next_m
219
220#define icmpstat pData->icmpstat
221
222#define ipstat pData->ipstat
223#define ipq pData->ipq
224#define ip_currid pData->ip_currid
225
226#define mbuf_alloced pData->mbuf_alloced
227#define mbuf_max pData->mbuf_max
228#define msize pData->msize
229#define m_freelist pData->m_freelist
230#define m_usedlist pData->m_usedlist
231
232#define curtime pData->curtime
233#define time_fasttimo pData->time_fasttimo
234#define last_slowtimo pData->last_slowtimo
235#define do_slowtimo pData->do_slowtimo
236#define link_up pData->link_up
237#define cUsers pData->cUsers
238#define tt pData->tt
239#define our_addr pData->our_addr
240#define alias_addr pData->alias_addr
241#define special_addr pData->special_addr
242#define dns_addr pData->dns_addr
243#define loopback_addr pData->loopback_addr
244#define client_ethaddr pData->client_ethaddr
245#define exec_list pData->exec_list
246#define slirp_hostname pData->slirp_hostname
247
248#define tcb pData->tcb
249#define tcp_last_so pData->tcp_last_so
250#define tcp_iss pData->tcp_iss
251
252#define tcpstat pData->tcpstat
253#define tcp_now pData->tcp_now
254
255#define tftp_sessions pData->tftp_sessions
256#define tftp_prefix pData->tftp_prefix
257
258#define udpstat pData->udpstat
259#define udb pData->udb
260#define udp_last_so pData->udp_last_so
261
262#define maxfragsperpacket pData->maxfragsperpacket
263#define maxnipq pData->maxnipq
264#define nipq pData->nipq
265
266#define tcp_reass_qsize pData->tcp_reass_qsize
267#define tcp_reass_maxqlen pData->tcp_reass_maxqlen
268#define tcp_reass_maxseg pData->tcp_reass_maxseg
269#define tcp_reass_overflows pData->tcp_reass_overflows
270
271#if !defined(VBOX_WITH_SIMPLIFIED_SLIRP_SYNC) && defined(RT_OS_WINDOWS)
272# define fIcmp pData->fIcmp
273#endif
274
275#define queue_tcp_label tcb
276#define queue_udp_label udb
277#define __X(x) x
278#define _X(x) __X(x)
279
280#ifdef VBOX_WITH_SLIRP_MT
281#define QSOCKET_LOCK(queue) \
282do { \
283 int rc = RTSemMutexRequest(_X(queue) ## _mutex, RT_INDEFINITE_WAIT); \
284 AssertReleaseRC(rc); \
285} while (0)
286#define QSOCKET_UNLOCK(queue) \
287do { \
288 int rc = RTSemMutexRelease(_X(queue) ## _mutex); \
289 AssertReleaseRC(rc); \
290} while (0)
291#define QSOCKET_LOCK_CREATE(queue) \
292do { \
293 int rc = RTSemMutexCreate(&pData->queue ## _mutex); \
294 AssertReleaseRC(rc); \
295} while (0)
296#define QSOCKET_LOCK_DESTROY(queue) \
297do { \
298 int rc = RTSemMutexDestroy(pData->queue ## _mutex); \
299 AssertReleaseRC(rc); \
300} while (0)
301
302# define QSOCKET_FOREACH(so, sonext, label) \
303 QSOCKET_LOCK(__X(queue_## label ## _label)); \
304 (so) = (_X(queue_ ## label ## _label)).so_next; \
305 SOCKET_LOCK((so)); \
306 for(;;) \
307 { \
308 if ((so) == &(_X(queue_## label ## _label))) \
309 { \
310 QSOCKET_UNLOCK(__X(queue_## label ##_label)); \
311 break; \
312 } \
313 if ((so)->so_next != &(_X(queue_## label ## _label))) \
314 { \
315 SOCKET_LOCK((so)->so_next); \
316 } \
317 (sonext) = (so)->so_next; \
318 QSOCKET_UNLOCK(__X(queue_## label ##_label));
319#else
320#define QSOCKET_LOCK(queue) do {} while (0)
321#define QSOCKET_UNLOCK(queue) do {} while (0)
322#define QSOCKET_LOCK_CREATE(queue) do {} while (0)
323#define QSOCKET_LOCK_DESTROY(queue) do {} while (0)
324# define QSOCKET_FOREACH(so, sonext, label) \
325 for ((so) = __X(queue_ ## label ## _label).so_next; so != &(__X(queue_ ## label ## _label)); (so) = (sonext)) \
326 { \
327 (sonext) = (so)->so_next;
328#endif
329
330#endif /* !_slirp_state_h_ */
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