VirtualBox

source: vbox/trunk/src/VBox/Devices/Network/slirp/debug.c@ 41228

Last change on this file since 41228 was 41228, checked in by vboxsync, 13 years ago

NAT: debug more flags from socket, structures and dump of tcpstate.
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  • Property svn:keywords set to Author Date Id Revision
File size: 21.9 KB
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1/* $Id: debug.c 41228 2012-05-10 07:11:01Z vboxsync $ */
2/** @file
3 * NAT - debug helpers.
4 */
5
6/*
7 * Copyright (C) 2006-2010 Oracle Corporation
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License (GPL) as published by the Free Software
13 * Foundation, in version 2 as it comes in the "COPYING" file of the
14 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16 */
17
18
19/*
20 * This code is based on:
21 *
22 * Copyright (c) 1995 Danny Gasparovski.
23 * Portions copyright (c) 2000 Kelly Price.
24 *
25 * Please read the file COPYRIGHT for the
26 * terms and conditions of the copyright.
27 */
28
29#include <slirp.h>
30#include <iprt/string.h>
31#include <iprt/stream.h>
32#include <iprt/critsect.h>
33#include "zone.h"
34
35#ifdef DEBUG
36void dump_packet(void *, int);
37#endif
38
39#ifndef STRINGIFY
40# define STRINGIFY(x) #x
41#endif
42
43static char *g_apszTcpStates[TCP_NSTATES] =
44{
45 STRINGIFY(TCPS_CLOSED),
46 STRINGIFY(TCPS_LISTEN),
47 STRINGIFY(TCPS_SYN_SENT),
48 STRINGIFY(TCPS_SYN_RECEIVED),
49 STRINGIFY(TCPS_ESTABLISHED),
50 STRINGIFY(TCPS_CLOSE_WAIT),
51 STRINGIFY(TCPS_FIN_WAIT_1),
52 STRINGIFY(TCPS_CLOSING),
53 STRINGIFY(TCPS_LAST_ACK),
54 STRINGIFY(TCPS_FIN_WAIT_2),
55 STRINGIFY(TCPS_TIME_WAIT)
56};
57
58typedef struct DEBUGSTRSOCKETSTATE
59{
60 uint32_t u32SocketState;
61 const char *pcszSocketStateName;
62} DEBUGSTRSOCKETSTATE;
63
64#define DEBUGSTRSOCKETSTATE_HELPER(x) {(x), #x}
65
66static DEBUGSTRSOCKETSTATE g_apszSocketStates[8] =
67{
68 DEBUGSTRSOCKETSTATE_HELPER(SS_NOFDREF),
69 DEBUGSTRSOCKETSTATE_HELPER(SS_ISFCONNECTING),
70 DEBUGSTRSOCKETSTATE_HELPER(SS_ISFCONNECTED),
71 DEBUGSTRSOCKETSTATE_HELPER(SS_FCANTRCVMORE),
72 DEBUGSTRSOCKETSTATE_HELPER(SS_FCANTSENDMORE),
73 DEBUGSTRSOCKETSTATE_HELPER(SS_FWDRAIN),
74 DEBUGSTRSOCKETSTATE_HELPER(SS_FACCEPTCONN),
75 DEBUGSTRSOCKETSTATE_HELPER(SS_FACCEPTONCE),
76};
77
78static DEBUGSTRSOCKETSTATE g_aTcpFlags[] =
79{
80 DEBUGSTRSOCKETSTATE_HELPER(TH_FIN),
81 DEBUGSTRSOCKETSTATE_HELPER(TH_SYN),
82 DEBUGSTRSOCKETSTATE_HELPER(TH_RST),
83 DEBUGSTRSOCKETSTATE_HELPER(TH_PUSH),
84 DEBUGSTRSOCKETSTATE_HELPER(TH_ACK),
85 DEBUGSTRSOCKETSTATE_HELPER(TH_URG),
86};
87
88/*
89 * Dump a packet in the same format as tcpdump -x
90 */
91#ifdef DEBUG
92void
93dump_packet(void *dat, int n)
94{
95 Log(("nat: PACKET DUMPED:\n%.*Rhxd\n", n, dat));
96}
97#endif
98
99#ifdef LOG_ENABLED
100static void
101lprint(const char *pszFormat, ...)
102{
103 va_list args;
104 va_start(args, pszFormat);
105 RTLogPrintfV(pszFormat, args);
106 va_end(args);
107}
108
109void
110ipstats(PNATState pData)
111{
112 lprint("\n");
113
114 lprint("IP stats:\n");
115 lprint(" %6d total packets received (%d were unaligned)\n",
116 ipstat.ips_total, ipstat.ips_unaligned);
117 lprint(" %6d with incorrect version\n", ipstat.ips_badvers);
118 lprint(" %6d with bad header checksum\n", ipstat.ips_badsum);
119 lprint(" %6d with length too short (len < sizeof(iphdr))\n", ipstat.ips_tooshort);
120 lprint(" %6d with length too small (len < ip->len)\n", ipstat.ips_toosmall);
121 lprint(" %6d with bad header length\n", ipstat.ips_badhlen);
122 lprint(" %6d with bad packet length\n", ipstat.ips_badlen);
123 lprint(" %6d fragments received\n", ipstat.ips_fragments);
124 lprint(" %6d fragments dropped\n", ipstat.ips_fragdropped);
125 lprint(" %6d fragments timed out\n", ipstat.ips_fragtimeout);
126 lprint(" %6d packets reassembled ok\n", ipstat.ips_reassembled);
127 lprint(" %6d outgoing packets fragmented\n", ipstat.ips_fragmented);
128 lprint(" %6d total outgoing fragments\n", ipstat.ips_ofragments);
129 lprint(" %6d with bad protocol field\n", ipstat.ips_noproto);
130 lprint(" %6d total packets delivered\n", ipstat.ips_delivered);
131}
132
133void
134tcpstats(PNATState pData)
135{
136 lprint("\n");
137
138 lprint("TCP stats:\n");
139
140 lprint(" %6d packets sent\n", tcpstat.tcps_sndtotal);
141 lprint(" %6d data packets (%d bytes)\n",
142 tcpstat.tcps_sndpack, tcpstat.tcps_sndbyte);
143 lprint(" %6d data packets retransmitted (%d bytes)\n",
144 tcpstat.tcps_sndrexmitpack, tcpstat.tcps_sndrexmitbyte);
145 lprint(" %6d ack-only packets (%d delayed)\n",
146 tcpstat.tcps_sndacks, tcpstat.tcps_delack);
147 lprint(" %6d URG only packets\n", tcpstat.tcps_sndurg);
148 lprint(" %6d window probe packets\n", tcpstat.tcps_sndprobe);
149 lprint(" %6d window update packets\n", tcpstat.tcps_sndwinup);
150 lprint(" %6d control (SYN/FIN/RST) packets\n", tcpstat.tcps_sndctrl);
151 lprint(" %6d times tcp_output did nothing\n", tcpstat.tcps_didnuttin);
152
153 lprint(" %6d packets received\n", tcpstat.tcps_rcvtotal);
154 lprint(" %6d acks (for %d bytes)\n",
155 tcpstat.tcps_rcvackpack, tcpstat.tcps_rcvackbyte);
156 lprint(" %6d duplicate acks\n", tcpstat.tcps_rcvdupack);
157 lprint(" %6d acks for unsent data\n", tcpstat.tcps_rcvacktoomuch);
158 lprint(" %6d packets received in sequence (%d bytes)\n",
159 tcpstat.tcps_rcvpack, tcpstat.tcps_rcvbyte);
160 lprint(" %6d completely duplicate packets (%d bytes)\n",
161 tcpstat.tcps_rcvduppack, tcpstat.tcps_rcvdupbyte);
162
163 lprint(" %6d packets with some duplicate data (%d bytes duped)\n",
164 tcpstat.tcps_rcvpartduppack, tcpstat.tcps_rcvpartdupbyte);
165 lprint(" %6d out-of-order packets (%d bytes)\n",
166 tcpstat.tcps_rcvoopack, tcpstat.tcps_rcvoobyte);
167 lprint(" %6d packets of data after window (%d bytes)\n",
168 tcpstat.tcps_rcvpackafterwin, tcpstat.tcps_rcvbyteafterwin);
169 lprint(" %6d window probes\n", tcpstat.tcps_rcvwinprobe);
170 lprint(" %6d window update packets\n", tcpstat.tcps_rcvwinupd);
171 lprint(" %6d packets received after close\n", tcpstat.tcps_rcvafterclose);
172 lprint(" %6d discarded for bad checksums\n", tcpstat.tcps_rcvbadsum);
173 lprint(" %6d discarded for bad header offset fields\n",
174 tcpstat.tcps_rcvbadoff);
175
176 lprint(" %6d connection requests\n", tcpstat.tcps_connattempt);
177 lprint(" %6d connection accepts\n", tcpstat.tcps_accepts);
178 lprint(" %6d connections established (including accepts)\n", tcpstat.tcps_connects);
179 lprint(" %6d connections closed (including %d drop)\n",
180 tcpstat.tcps_closed, tcpstat.tcps_drops);
181 lprint(" %6d embryonic connections dropped\n", tcpstat.tcps_conndrops);
182 lprint(" %6d segments we tried to get rtt (%d succeeded)\n",
183 tcpstat.tcps_segstimed, tcpstat.tcps_rttupdated);
184 lprint(" %6d retransmit timeouts\n", tcpstat.tcps_rexmttimeo);
185 lprint(" %6d connections dropped by rxmt timeout\n",
186 tcpstat.tcps_timeoutdrop);
187 lprint(" %6d persist timeouts\n", tcpstat.tcps_persisttimeo);
188 lprint(" %6d keepalive timeouts\n", tcpstat.tcps_keeptimeo);
189 lprint(" %6d keepalive probes sent\n", tcpstat.tcps_keepprobe);
190 lprint(" %6d connections dropped by keepalive\n", tcpstat.tcps_keepdrops);
191 lprint(" %6d correct ACK header predictions\n", tcpstat.tcps_predack);
192 lprint(" %6d correct data packet header predictions\n", tcpstat.tcps_preddat);
193 lprint(" %6d TCP cache misses\n", tcpstat.tcps_socachemiss);
194
195/* lprint(" Packets received too short: %d\n", tcpstat.tcps_rcvshort); */
196/* lprint(" Segments dropped due to PAWS: %d\n", tcpstat.tcps_pawsdrop); */
197
198}
199
200void
201udpstats(PNATState pData)
202{
203 lprint("\n");
204
205 lprint("UDP stats:\n");
206 lprint(" %6d datagrams received\n", udpstat.udps_ipackets);
207 lprint(" %6d with packets shorter than header\n", udpstat.udps_hdrops);
208 lprint(" %6d with bad checksums\n", udpstat.udps_badsum);
209 lprint(" %6d with data length larger than packet\n", udpstat.udps_badlen);
210 lprint(" %6d UDP socket cache misses\n", udpstat.udpps_pcbcachemiss);
211 lprint(" %6d datagrams sent\n", udpstat.udps_opackets);
212}
213
214void
215icmpstats(PNATState pData)
216{
217 lprint("\n");
218 lprint("ICMP stats:\n");
219 lprint(" %6d ICMP packets received\n", icmpstat.icps_received);
220 lprint(" %6d were too short\n", icmpstat.icps_tooshort);
221 lprint(" %6d with bad checksums\n", icmpstat.icps_checksum);
222 lprint(" %6d with type not supported\n", icmpstat.icps_notsupp);
223 lprint(" %6d with bad type feilds\n", icmpstat.icps_badtype);
224 lprint(" %6d ICMP packets sent in reply\n", icmpstat.icps_reflect);
225}
226
227void
228mbufstats(PNATState pData)
229{
230 /*
231 * (vvl) this static code can't work with mbuf zone anymore
232 * @todo: make statistic correct
233 */
234 NOREF(pData);
235}
236
237void
238sockstats(PNATState pData)
239{
240 char buff[256];
241 size_t n;
242 struct socket *so, *so_next;
243
244 lprint("\n");
245
246 lprint(
247 "Proto[state] Sock Local Address, Port Remote Address, Port RecvQ SendQ\n");
248
249 QSOCKET_FOREACH(so, so_next, tcp)
250 /* { */
251 n = RTStrPrintf(buff, sizeof(buff), "tcp[%s]", so->so_tcpcb?tcpstates[so->so_tcpcb->t_state]:"NONE");
252 while (n < 17)
253 buff[n++] = ' ';
254 buff[17] = 0;
255 lprint("%s %3d %15s %5d ",
256 buff, so->s, inet_ntoa(so->so_laddr), RT_N2H_U16(so->so_lport));
257 lprint("%15s %5d %5d %5d\n",
258 inet_ntoa(so->so_faddr), RT_N2H_U16(so->so_fport),
259 SBUF_LEN(&so->so_rcv), SBUF_LEN(&so->so_snd));
260 LOOP_LABEL(tcp, so, so_next);
261 }
262
263 QSOCKET_FOREACH(so, so_next, udp)
264 /* { */
265 n = RTStrPrintf(buff, sizeof(buff), "udp[%d sec]", (so->so_expire - curtime) / 1000);
266 while (n < 17)
267 buff[n++] = ' ';
268 buff[17] = 0;
269 lprint("%s %3d %15s %5d ",
270 buff, so->s, inet_ntoa(so->so_laddr), RT_N2H_U16(so->so_lport));
271 lprint("%15s %5d %5d %5d\n",
272 inet_ntoa(so->so_faddr), RT_N2H_U16(so->so_fport),
273 SBUF_LEN(&so->so_rcv), SBUF_LEN(&so->so_snd));
274 LOOP_LABEL(udp, so, so_next);
275 }
276}
277#endif
278
279static DECLCALLBACK(size_t)
280printSocket(PFNRTSTROUTPUT pfnOutput, void *pvArgOutput,
281 const char *pszType, void const *pvValue,
282 int cchWidth, int cchPrecision, unsigned fFlags,
283 void *pvUser)
284{
285 struct socket *so = (struct socket*)pvValue;
286 struct sockaddr addr;
287 struct sockaddr_in *in_addr;
288 socklen_t socklen = sizeof(struct sockaddr);
289 PNATState pData = (PNATState)pvUser;
290 int status = 0;
291 NOREF(cchWidth);
292 NOREF(cchPrecision);
293 NOREF(fFlags);
294 Assert(pData);
295
296 AssertReturn(strcmp(pszType, "natsock") == 0, 0);
297 if (so == NULL)
298 return RTStrFormat(pfnOutput, pvArgOutput, NULL, 0,
299 "socket is null");
300 if (so->s == -1)
301 return RTStrFormat(pfnOutput, pvArgOutput, NULL, 0,
302 "socket(%d)", so->s);
303
304 status = getsockname(so->s, &addr, &socklen);
305 if(status != 0 || addr.sa_family != AF_INET)
306 {
307 return RTStrFormat(pfnOutput, pvArgOutput, NULL, 0,
308 "socket(%d) is invalid(%s)", so->s, strerror(errno));
309 }
310
311 in_addr = (struct sockaddr_in *)&addr;
312 return RTStrFormat(pfnOutput, pvArgOutput, NULL, 0, "socket %d:(proto:%u) exp. in %d "
313 "state=%R[natsockstate] "
314 "fUnderPolling:%RTbool "
315 "fShouldBeRemoved:%RTbool "
316 "f_(addr:port)=%RTnaipv4:%d "
317 "l_(addr:port)=%RTnaipv4:%d "
318 "name=%RTnaipv4:%d",
319 so->s, so->so_type,
320 so->so_expire ? so->so_expire - curtime : 0,
321 so->so_state,
322 so->fUnderPolling,
323 so->fShouldBeRemoved,
324 so->so_faddr.s_addr,
325 RT_N2H_U16(so->so_fport),
326 so->so_laddr.s_addr,
327 RT_N2H_U16(so->so_lport),
328 in_addr->sin_addr.s_addr,
329 RT_N2H_U16(in_addr->sin_port));
330}
331
332static DECLCALLBACK(size_t)
333printNATSocketState(PFNRTSTROUTPUT pfnOutput, void *pvArgOutput,
334 const char *pszType, void const *pvValue,
335 int cchWidth, int cchPrecision, unsigned fFlags,
336 void *pvUser)
337{
338 uint32_t u32SocketState = (uint32_t)(uintptr_t)pvValue;
339 int idxNATState = 0;
340 bool fFirst = true;
341 size_t cbReturn = 0;
342 NOREF(cchWidth);
343 NOREF(cchPrecision);
344 NOREF(fFlags);
345 NOREF(pvUser);
346 AssertReturn(strcmp(pszType, "natsockstate") == 0, 0);
347
348 for (idxNATState = 0; idxNATState < RT_ELEMENTS(g_apszSocketStates); ++idxNATState)
349 {
350 if (u32SocketState & g_apszSocketStates[idxNATState].u32SocketState)
351 {
352 if (fFirst)
353 {
354 cbReturn += RTStrFormat(pfnOutput, pvArgOutput, NULL, 0, g_apszSocketStates[idxNATState].pcszSocketStateName);
355 fFirst = false;
356 }
357 else
358 cbReturn += RTStrFormat(pfnOutput, pvArgOutput, NULL, 0, "|%s", g_apszSocketStates[idxNATState].pcszSocketStateName);
359 }
360 }
361
362 if (!cbReturn)
363 return RTStrFormat(pfnOutput, pvArgOutput, NULL, 0, "[unknown state %RX32]", u32SocketState);
364
365 return cbReturn;
366}
367
368/**
369 * Print callback dumping TCP Control Block in terms of RFC 793.
370 */
371static DECLCALLBACK(size_t)
372printTcpcbRfc793(PFNRTSTROUTPUT pfnOutput, void *pvArgOutput,
373 const char *pszType, void const *pvValue,
374 int cchWidth, int cchPrecision, unsigned fFlags,
375 void *pvUser)
376{
377 size_t cb = 0;
378 const struct tcpcb *tp = (const struct tcpcb *)pvValue;
379 NOREF(cchWidth);
380 NOREF(cchPrecision);
381 NOREF(fFlags);
382 NOREF(pvUser);
383 AssertReturn(RTStrCmp(pszType, "tcpcb793") == 0, 0);
384 if (tp)
385 {
386 cb += RTStrFormat(pfnOutput, pvArgOutput, NULL, 0, "TCB793[ state:%R[tcpstate] SND(UNA: %x, NXT: %x, UP: %x, WND: %x, WL1:%x, WL2:%x, ISS:%x), ",
387 tp->t_state, tp->snd_una, tp->snd_nxt, tp->snd_up, tp->snd_wnd, tp->snd_wl1, tp->snd_wl2, tp->iss);
388 cb += RTStrFormat(pfnOutput, pvArgOutput, NULL, 0, "RCV(WND: %x, NXT: %x, UP: %x, IRS:%x)]", tp->rcv_wnd, tp->rcv_nxt, tp->rcv_up, tp->irs);
389 }
390 else
391 {
392 cb += RTStrFormat(pfnOutput, pvArgOutput, NULL, 0, "TCB793[ NULL ]");
393 }
394 return cb;
395}
396/*
397 * Prints TCP segment in terms of RFC 793.
398 */
399static DECLCALLBACK(size_t)
400printTcpSegmentRfc793(PFNRTSTROUTPUT pfnOutput, void *pvArgOutput,
401 const char *pszType, void const *pvValue,
402 int cchWidth, int cchPrecision, unsigned fFlags,
403 void *pvUser)
404{
405 size_t cb = 0;
406 const struct tcpiphdr *ti = (const struct tcpiphdr *)pvValue;
407 NOREF(cchWidth);
408 NOREF(cchPrecision);
409 NOREF(fFlags);
410 NOREF(pvUser);
411 AssertReturn(RTStrCmp(pszType, "tcpseg793") == 0 && ti, 0);
412 cb += RTStrFormat(pfnOutput, pvArgOutput, NULL, 0, "SEG[ACK: %x, SEQ: %x, LEN: %x, WND: %x, UP: %x]",
413 ti->ti_ack, ti->ti_seq, ti->ti_len, ti->ti_win, ti->ti_urp);
414 return cb;
415}
416
417/*
418 * Prints TCP state
419 */
420static DECLCALLBACK(size_t)
421printTcpState(PFNRTSTROUTPUT pfnOutput, void *pvArgOutput,
422 const char *pszType, void const *pvValue,
423 int cchWidth, int cchPrecision, unsigned fFlags,
424 void *pvUser)
425{
426 size_t cb = 0;
427 const int idxTcpState = (int)(uintptr_t)pvValue;
428 char *pszTcpStateName = (idxTcpState >= 0 && idxTcpState < TCP_NSTATES) ? g_apszTcpStates[idxTcpState] : "TCPS_INVALIDE_STATE";
429 NOREF(cchWidth);
430 NOREF(cchPrecision);
431 NOREF(fFlags);
432 NOREF(pvUser);
433 AssertReturn(RTStrCmp(pszType, "tcpstate") == 0, 0);
434 cb += RTStrFormat(pfnOutput, pvArgOutput, NULL, 0, "%s", pszTcpStateName);
435 return cb;
436}
437
438/*
439 * Prints TCP flags
440 */
441static DECLCALLBACK(size_t)
442printTcpFlags(PFNRTSTROUTPUT pfnOutput, void *pvArgOutput,
443 const char *pszType, void const *pvValue,
444 int cchWidth, int cchPrecision, unsigned fFlags,
445 void *pvUser)
446{
447 size_t cbPrint = 0;
448 uint32_t u32TcpFlags = (uint32_t)(uintptr_t)pvValue;
449 bool fSingleValue = true;
450 int idxTcpFlags = 0;
451 NOREF(cchWidth);
452 NOREF(cchPrecision);
453 NOREF(fFlags);
454 NOREF(pvUser);
455 AssertReturn(RTStrCmp(pszType, "tcpflags") == 0, 0);
456 cbPrint += RTStrFormat(pfnOutput,
457 pvArgOutput,
458 NULL,
459 0,
460 "tcpflags: %RX8 [", (uint8_t)u32TcpFlags);
461 for (idxTcpFlags = 0; idxTcpFlags < RT_ELEMENTS(g_aTcpFlags); ++idxTcpFlags)
462 {
463 if (u32TcpFlags & g_aTcpFlags[idxTcpFlags].u32SocketState)
464 {
465 cbPrint += RTStrFormat(pfnOutput,
466 pvArgOutput,
467 NULL,
468 0,
469 fSingleValue ? "%s(%RX8)" : "|%s(%RX8)",
470 g_aTcpFlags[idxTcpFlags].pcszSocketStateName,
471 (uint8_t)g_aTcpFlags[idxTcpFlags].u32SocketState);
472 fSingleValue = false;
473 }
474 }
475 cbPrint += RTStrFormat(pfnOutput,
476 pvArgOutput,
477 NULL,
478 0,
479 "]");
480 return cbPrint;
481}
482
483/*
484 * Prints sbuf state
485 */
486static DECLCALLBACK(size_t)
487printSbuf(PFNRTSTROUTPUT pfnOutput, void *pvArgOutput,
488 const char *pszType, void const *pvValue,
489 int cchWidth, int cchPrecision, unsigned fFlags,
490 void *pvUser)
491{
492 size_t cb = 0;
493 const struct sbuf *sb = (struct sbuf *)pvValue;
494 NOREF(cchWidth);
495 NOREF(cchPrecision);
496 NOREF(fFlags);
497 NOREF(pvUser);
498 AssertReturn(RTStrCmp(pszType, "sbuf") == 0, 0);
499 cb += RTStrFormat(pfnOutput, pvArgOutput, NULL, 0, "[sbuf:%p cc:%d, datalen:%d, wprt:%p, rptr:%p data:%p]",
500 sb, sb->sb_cc, sb->sb_datalen, sb->sb_wptr, sb->sb_rptr, sb->sb_data);
501 return cb;
502}
503
504/*
505 * Prints zone state
506 */
507static DECLCALLBACK(size_t)
508printMbufZone(PFNRTSTROUTPUT pfnOutput, void *pvArgOutput,
509 const char *pszType, void const *pvValue,
510 int cchWidth, int cchPrecision, unsigned fFlags,
511 void *pvUser)
512{
513 size_t cb = 0;
514 const uma_zone_t zone = (const uma_zone_t)pvValue;
515 NOREF(cchWidth);
516 NOREF(cchPrecision);
517 NOREF(fFlags);
518 NOREF(pvUser);
519 AssertReturn(RTStrCmp(pszType, "mzone") == 0, 0);
520 if (!zone)
521 cb += RTStrFormat(pfnOutput, pvArgOutput, NULL, 0, "[zone:NULL]");
522 else
523 cb += RTStrFormat(pfnOutput, pvArgOutput, NULL, 0, "[zone:%p name:%s, master_zone:%R[mzone]]",
524 zone, zone->name, zone->master_zone);
525 return cb;
526}
527
528/*
529 * Prints zone's item state
530 */
531static DECLCALLBACK(size_t)
532printMbufZoneItem(PFNRTSTROUTPUT pfnOutput, void *pvArgOutput,
533 const char *pszType, void const *pvValue,
534 int cchWidth, int cchPrecision, unsigned fFlags,
535 void *pvUser)
536{
537 size_t cb = 0;
538 const struct item *it = (const struct item *)pvValue;
539 NOREF(cchWidth);
540 NOREF(cchPrecision);
541 NOREF(fFlags);
542 NOREF(pvUser);
543 AssertReturn(RTStrCmp(pszType, "mzoneitem") == 0, 0);
544 if (!it)
545 cb += RTStrFormat(pfnOutput, pvArgOutput, NULL, 0, "[item:NULL]");
546 else
547 cb += RTStrFormat(pfnOutput, pvArgOutput, NULL, 0, "[iptem:%p ref_count:%d, zone:%R[mzone]]",
548 it, it->ref_count, it->zone);
549 return cb;
550}
551
552static DECLCALLBACK(size_t)
553print_networkevents(PFNRTSTROUTPUT pfnOutput, void *pvArgOutput,
554 const char *pszType, void const *pvValue,
555 int cchWidth, int cchPrecision, unsigned fFlags,
556 void *pvUser)
557{
558 size_t cb = 0;
559#ifdef RT_OS_WINDOWS
560 WSANETWORKEVENTS *pNetworkEvents = (WSANETWORKEVENTS*)pvValue;
561 bool fDelim = false;
562#endif
563
564 NOREF(cchWidth);
565 NOREF(cchPrecision);
566 NOREF(fFlags);
567 NOREF(pvUser);
568
569#ifdef RT_OS_WINDOWS
570 AssertReturn(strcmp(pszType, "natwinnetevents") == 0, 0);
571
572 cb += RTStrFormat(pfnOutput, pvArgOutput, NULL, 0, "events=%02x (",
573 pNetworkEvents->lNetworkEvents);
574# define DO_BIT(bit) \
575 if (pNetworkEvents->lNetworkEvents & FD_ ## bit) \
576 { \
577 cb += RTStrFormat(pfnOutput, pvArgOutput, NULL, 0, \
578 "%s" #bit "(%d)", fDelim ? "," : "", \
579 pNetworkEvents->iErrorCode[FD_ ## bit ## _BIT]); \
580 fDelim = true; \
581 }
582 DO_BIT(READ);
583 DO_BIT(WRITE);
584 DO_BIT(OOB);
585 DO_BIT(ACCEPT);
586 DO_BIT(CONNECT);
587 DO_BIT(CLOSE);
588 DO_BIT(QOS);
589# undef DO_BIT
590 cb += RTStrFormat(pfnOutput, pvArgOutput, NULL, 0, ")");
591#else
592 NOREF(pfnOutput);
593 NOREF(pvArgOutput);
594 NOREF(pszType);
595 NOREF(pvValue);
596#endif
597 return cb;
598}
599
600#if 0
601/*
602 * Debugging
603 */
604int errno_func(const char *file, int line)
605{
606 int err = WSAGetLastError();
607 LogRel(("errno=%d (%s:%d)\n", err, file, line));
608 return err;
609}
610#endif
611
612int
613debug_init(PNATState pData)
614{
615 int rc = VINF_SUCCESS;
616
617 static int g_fFormatRegistered;
618
619 if (!g_fFormatRegistered)
620 {
621
622 rc = RTStrFormatTypeRegister("natsock", printSocket, pData); AssertRC(rc);
623 rc = RTStrFormatTypeRegister("natsockstate", printNATSocketState, NULL); AssertRC(rc);
624 rc = RTStrFormatTypeRegister("natwinnetevents",
625 print_networkevents, NULL); AssertRC(rc);
626 rc = RTStrFormatTypeRegister("tcpcb793", printTcpcbRfc793, NULL); AssertRC(rc);
627 rc = RTStrFormatTypeRegister("tcpseg793", printTcpSegmentRfc793, NULL); AssertRC(rc);
628 rc = RTStrFormatTypeRegister("tcpstate", printTcpState, NULL); AssertRC(rc);
629 rc = RTStrFormatTypeRegister("tcpflags", printTcpFlags, NULL); AssertRC(rc);
630 rc = RTStrFormatTypeRegister("sbuf", printSbuf, NULL); AssertRC(rc);
631 rc = RTStrFormatTypeRegister("mzone", printMbufZone, NULL); AssertRC(rc);
632 rc = RTStrFormatTypeRegister("mzoneitem", printMbufZoneItem, NULL); AssertRC(rc);
633 g_fFormatRegistered = 1;
634 }
635
636 return rc;
637}
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