xref: /dragonfly/sbin/hammer2/cmd_debug.c (revision ffe53622)
1 /*
2  * Copyright (c) 2011-2012 The DragonFly Project.  All rights reserved.
3  *
4  * This code is derived from software contributed to The DragonFly Project
5  * by Matthew Dillon <dillon@dragonflybsd.org>
6  * by Venkatesh Srinivas <vsrinivas@dragonflybsd.org>
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  *
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in
16  *    the documentation and/or other materials provided with the
17  *    distribution.
18  * 3. Neither the name of The DragonFly Project nor the names of its
19  *    contributors may be used to endorse or promote products derived
20  *    from this software without specific, prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
25  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
26  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
27  * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
28  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
29  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
30  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
31  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
32  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33  * SUCH DAMAGE.
34  */
35 
36 #include "hammer2.h"
37 
38 #define SHOW_TAB	2
39 
40 static void shell_msghandler(dmsg_msg_t *msg, int unmanaged);
41 static void shell_ttymsg(dmsg_iocom_t *iocom);
42 static void CountFreeBlocks(hammer2_bmap_data_t *bmap,
43 		hammer2_off_t *accum16, hammer2_off_t *accum64);
44 
45 /************************************************************************
46  *				    SHELL				*
47  ************************************************************************/
48 
49 int
50 cmd_shell(const char *hostname)
51 {
52 	dmsg_master_service_info_t *info;
53 	pthread_t thread;
54 	int fd;
55 
56 	fd = dmsg_connect(hostname);
57 	if (fd < 0)
58 		return 1;
59 
60 	info = malloc(sizeof(*info));
61 	bzero(info, sizeof(*info));
62 	info->fd = fd;
63 	info->detachme = 0;
64 	info->usrmsg_callback = shell_msghandler;
65 	info->altmsg_callback = shell_ttymsg;
66 	info->label = strdup("debug");
67 	pthread_create(&thread, NULL, dmsg_master_service, info);
68 	pthread_join(thread, NULL);
69 
70 	return 0;
71 }
72 
73 #if 0
74 int
75 cmd_shell(const char *hostname)
76 {
77 	struct dmsg_iocom iocom;
78 	dmsg_msg_t *msg;
79 	int fd;
80 
81 	/*
82 	 * Connect to the target
83 	 */
84 	fd = dmsg_connect(hostname);
85 	if (fd < 0)
86 		return 1;
87 
88 	/*
89 	 * Initialize the session and transmit an empty DMSG_DBG_SHELL
90 	 * to cause the remote end to generate a prompt.
91 	 */
92 	dmsg_iocom_init(&iocom, fd, 0,
93 			NULL,
94 			shell_rcvmsg,
95 			hammer2_shell_parse,
96 			shell_ttymsg);
97 	fcntl(0, F_SETFL, O_NONBLOCK);
98 	printf("debug: connected\n");
99 
100 	msg = dmsg_msg_alloc(&iocom.state0, 0, DMSG_DBG_SHELL, NULL, NULL);
101 	dmsg_msg_write(msg);
102 	dmsg_iocom_core(&iocom);
103 	fprintf(stderr, "debug: disconnected\n");
104 	close(fd);
105 	return 0;
106 }
107 #endif
108 
109 /*
110  * Debug session front-end
111  *
112  * Callback from dmsg_iocom_core() when messages might be present
113  * on the socket.
114  */
115 static
116 void
117 shell_msghandler(dmsg_msg_t *msg, int unmanaged)
118 {
119 	dmsg_msg_t *nmsg;
120 
121 	switch(msg->tcmd) {
122 #if 0
123 	case DMSG_LNK_ERROR:
124 	case DMSG_LNK_ERROR | DMSGF_REPLY:
125 		/*
126 		 * One-way non-transactional LNK_ERROR messages typically
127 		 * indicate a connection failure.  Error code 0 is used by
128 		 * the debug shell to indicate no more results from last cmd.
129 		 */
130 		if (msg->any.head.error) {
131 			fprintf(stderr, "Stream failure: %s\n",
132 				dmsg_msg_str(msg));
133 		} else {
134 			write(1, "debug> ", 7);
135 		}
136 		break;
137 	case DMSG_LNK_ERROR | DMSGF_DELETE:
138 		/* ignore termination of LNK_CONN */
139 		break;
140 #endif
141 	case DMSG_DBG_SHELL:
142 		/*
143 		 * We send the commands, not accept them.
144 		 * (one-way message, not transactional)
145 		 */
146 		if (unmanaged)
147 			dmsg_msg_reply(msg, DMSG_ERR_NOSUPP);
148 		break;
149 	case DMSG_DBG_SHELL | DMSGF_REPLY:
150 		/*
151 		 * A reply from the remote is data we copy to stdout.
152 		 * (one-way message, not transactional)
153 		 */
154 		if (msg->aux_size) {
155 			msg->aux_data[msg->aux_size - 1] = 0;
156 			write(1, msg->aux_data, strlen(msg->aux_data));
157 		}
158 		break;
159 #if 1
160 	case DMSG_LNK_CONN | DMSGF_CREATE:
161 		fprintf(stderr, "Debug Shell received LNK_CONN\n");
162 		nmsg = dmsg_msg_alloc(&msg->state->iocom->state0, 0,
163 				      DMSG_DBG_SHELL,
164 				      NULL, NULL);
165 		dmsg_msg_write(nmsg);
166 		dmsg_msg_reply(msg, DMSG_ERR_NOSUPP);
167 		break;
168 	case DMSG_LNK_CONN | DMSGF_DELETE:
169 		break;
170 #endif
171 	default:
172 		/*
173 		 * Ignore any unknown messages, Terminate any unknown
174 		 * transactions with an error.
175 		 */
176 		fprintf(stderr, "Unknown message: %s\n", dmsg_msg_str(msg));
177 		if (unmanaged) {
178 			if (msg->any.head.cmd & DMSGF_CREATE)
179 				dmsg_msg_reply(msg, DMSG_ERR_NOSUPP);
180 			if (msg->any.head.cmd & DMSGF_DELETE)
181 				dmsg_msg_reply(msg, DMSG_ERR_NOSUPP);
182 		}
183 		break;
184 	}
185 }
186 
187 /*
188  * Debug session front-end
189  */
190 static
191 void
192 shell_ttymsg(dmsg_iocom_t *iocom)
193 {
194 	dmsg_state_t *pstate;
195 	dmsg_msg_t *msg;
196 	char buf[256];
197 	char *cmd;
198 	size_t len;
199 
200 	if (fgets(buf, sizeof(buf), stdin) != NULL) {
201 		if (buf[0] == '@') {
202 			pstate = dmsg_findspan(strtok(buf + 1, " \t\n"));
203 			cmd = strtok(NULL, "\n");
204 		} else {
205 			pstate = &iocom->state0;
206 			cmd = strtok(buf, "\n");
207 		}
208 		if (cmd && pstate) {
209 			len = strlen(cmd) + 1;
210 			msg = dmsg_msg_alloc(pstate, len, DMSG_DBG_SHELL,
211 					     NULL, NULL);
212 			bcopy(cmd, msg->aux_data, len);
213 			dmsg_msg_write(msg);
214 		} else if (cmd) {
215 			fprintf(stderr, "@msgid not found\n");
216 		} else {
217 			/*
218 			 * This should cause the remote end to generate
219 			 * a debug> prompt (and thus shows that there is
220 			 * connectivity).
221 			 */
222 			msg = dmsg_msg_alloc(pstate, 0, DMSG_DBG_SHELL,
223 					     NULL, NULL);
224 			dmsg_msg_write(msg);
225 		}
226 	} else if (feof(stdin)) {
227 		/*
228 		 * Set EOF flag without setting any error code for normal
229 		 * EOF.
230 		 */
231 		iocom->flags |= DMSG_IOCOMF_EOF;
232 	} else {
233 		clearerr(stdin);
234 	}
235 }
236 
237 /*
238  * Debug session back-end (on remote side)
239  */
240 static void shell_span(dmsg_msg_t *msg, char *cmdbuf);
241 static void shell_ping(dmsg_msg_t *msg, char *cmdbuf);
242 
243 void
244 hammer2_shell_parse(dmsg_msg_t *msg, int unmanaged)
245 {
246 	dmsg_iocom_t *iocom = msg->state->iocom;
247 	char *cmdbuf;
248 	char *cmdp;
249 	uint32_t cmd;
250 
251 	/*
252 	 * Filter on debug shell commands and ping responses only
253 	 */
254 	cmd = msg->any.head.cmd;
255 	if ((cmd & DMSGF_CMDSWMASK) == (DMSG_LNK_PING | DMSGF_REPLY)) {
256 		dmsg_printf(iocom, "ping reply\n");
257 		return;
258 	}
259 
260 	if ((cmd & DMSGF_PROTOS) != DMSG_PROTO_DBG) {
261 		if (unmanaged)
262 			dmsg_msg_reply(msg, DMSG_ERR_NOSUPP);
263 		return;
264 	}
265 	if ((cmd & DMSGF_CMDSWMASK) != DMSG_DBG_SHELL) {
266 		if (unmanaged)
267 			dmsg_msg_reply(msg, DMSG_ERR_NOSUPP);
268 		return;
269 	}
270 
271 	/*
272 	 * Debug shell command
273 	 */
274 	cmdbuf = msg->aux_data;
275 	cmdp = strsep(&cmdbuf, " \t");
276 
277 	if (cmdp == NULL || *cmdp == 0) {
278 		;
279 	} else if (strcmp(cmdp, "ping") == 0) {
280 		shell_ping(msg, cmdbuf);
281 	} else if (strcmp(cmdp, "span") == 0) {
282 		shell_span(msg, cmdbuf);
283 	} else if (strcmp(cmdp, "tree") == 0) {
284 		dmsg_shell_tree(iocom, cmdbuf); /* dump spanning tree */
285 	} else if (strcmp(cmdp, "help") == 0 || strcmp(cmdp, "?") == 0) {
286 		dmsg_printf(iocom, "help            Command help\n");
287 		dmsg_printf(iocom, "span <host>     Span to target host\n");
288 		dmsg_printf(iocom, "tree            Dump spanning tree\n");
289 		dmsg_printf(iocom, "@span <cmd>     Issue via circuit\n");
290 	} else {
291 		dmsg_printf(iocom, "Unrecognized command: %s\n", cmdp);
292 	}
293 	dmsg_printf(iocom, "debug> ");
294 }
295 
296 static void
297 shell_ping(dmsg_msg_t *msg, char *cmdbuf __unused)
298 {
299 	dmsg_iocom_t *iocom = msg->state->iocom;
300 	dmsg_msg_t *m2;
301 
302 	dmsg_printf(iocom, "sending ping\n");
303 	m2 = dmsg_msg_alloc(msg->state, 0, DMSG_LNK_PING, NULL, NULL);
304 	dmsg_msg_write(m2);
305 }
306 
307 static void
308 shell_span(dmsg_msg_t *msg, char *cmdbuf)
309 {
310 	dmsg_iocom_t *iocom = msg->state->iocom;
311 	dmsg_master_service_info_t *info;
312 	const char *hostname = strsep(&cmdbuf, " \t");
313 	pthread_t thread;
314 	int fd;
315 
316 	/*
317 	 * Connect to the target
318 	 */
319 	if (hostname == NULL) {
320 		fd = -1;
321 	} else {
322 		fd = dmsg_connect(hostname);
323 	}
324 
325 	/*
326 	 * Start master service
327 	 */
328 	if (fd < 0) {
329 		dmsg_printf(iocom, "Connection to %s failed\n", hostname);
330 	} else {
331 		dmsg_printf(iocom, "Connected to %s\n", hostname);
332 
333 		info = malloc(sizeof(*info));
334 		bzero(info, sizeof(*info));
335 		info->fd = fd;
336 		info->detachme = 1;
337 		info->usrmsg_callback = hammer2_shell_parse;
338 		info->label = strdup("client");
339 
340 		pthread_create(&thread, NULL, dmsg_master_service, info);
341 		/*pthread_join(thread, &res);*/
342 	}
343 }
344 
345 /************************************************************************
346  *				DEBUGSPAN				*
347  ************************************************************************
348  *
349  * Connect to the target manually (not via the cluster list embedded in
350  * a hammer2 filesystem) and initiate the SPAN protocol.
351  */
352 int
353 cmd_debugspan(const char *hostname)
354 {
355 	pthread_t thread;
356 	int fd;
357 	void *res;
358 
359 	/*
360 	 * Connect to the target
361 	 */
362 	fd = dmsg_connect(hostname);
363 	if (fd < 0)
364 		return 1;
365 
366 	printf("debugspan: connected to %s, starting CONN/SPAN\n", hostname);
367 	pthread_create(&thread, NULL,
368 		       dmsg_master_service, (void *)(intptr_t)fd);
369 	pthread_join(thread, &res);
370 	return(0);
371 }
372 
373 /************************************************************************
374  *				    SHOW				*
375  ************************************************************************/
376 
377 static void show_bref(hammer2_volume_data_t *voldata, int fd, int tab,
378 			int bi, hammer2_blockref_t *bref,
379 			int dofreemap, int norecurse);
380 static void tabprintf(int tab, const char *ctl, ...);
381 
382 int64_t TotalFreeAccum16;
383 int64_t TotalFreeAccum64;
384 
385 int
386 cmd_show(const char *devpath, int dofreemap)
387 {
388 	hammer2_blockref_t broot;
389 	hammer2_blockref_t best;
390 	hammer2_media_data_t media;
391 	int fd;
392 	int i;
393 	int best_i;
394 
395 	TotalFreeAccum16 = 0;	/* includes TotalFreeAccum64 */
396 	TotalFreeAccum64 = 0;
397 	fd = open(devpath, O_RDONLY);
398 	if (fd < 0) {
399 		perror("open");
400 		return 1;
401 	}
402 
403 	/*
404 	 * Show the tree using the best volume header.
405 	 * -vvv will show the tree for all four volume headers.
406 	 */
407 	best_i = -1;
408 	bzero(&best, sizeof(best));
409 	for (i = 0; i < 4; ++i) {
410 		bzero(&broot, sizeof(broot));
411 		broot.type = HAMMER2_BREF_TYPE_VOLUME;
412 		broot.data_off = (i * HAMMER2_ZONE_BYTES64) |
413 				 HAMMER2_PBUFRADIX;
414 		lseek(fd, broot.data_off & ~HAMMER2_OFF_MASK_RADIX, 0);
415 		if (read(fd, &media, HAMMER2_PBUFSIZE) ==
416 		    (ssize_t)HAMMER2_PBUFSIZE) {
417 			broot.mirror_tid = media.voldata.mirror_tid;
418 			if (best_i < 0 || best.mirror_tid < broot.mirror_tid) {
419 				best_i = i;
420 				best = broot;
421 			}
422 			if (VerboseOpt >= 3)
423 				show_bref(&media.voldata, fd, 0, i, &broot, dofreemap, 0);
424 		}
425 	}
426 	if (VerboseOpt < 3)
427 		show_bref(&media.voldata, fd, 0, best_i, &best, dofreemap, 0);
428 	close(fd);
429 
430 	if (dofreemap && VerboseOpt < 3) {
431 		printf("Total free storage: %6.3fGB (%6.3fGB in 64KB chunks)\n",
432 		       (double)TotalFreeAccum16 / (1024.0 * 1024.0 * 1024.0),
433 		       (double)TotalFreeAccum64 / (1024.0 * 1024.0 * 1024.0));
434 	}
435 
436 	return 0;
437 }
438 
439 extern uint32_t iscsi_crc32(const void *buf, size_t size);
440 static void
441 show_bref(hammer2_volume_data_t *voldata, int fd, int tab,
442 	  int bi, hammer2_blockref_t *bref, int dofreemap, int norecurse)
443 {
444 	hammer2_media_data_t media;
445 	hammer2_blockref_t *bscan;
446 	int bcount;
447 	int i;
448 	int didnl;
449 	int namelen;
450 	int obrace = 1;
451 	int failed;
452 	size_t bytes;
453 	const char *type_str;
454 	char *str = NULL;
455 	uint32_t cv;
456 	uint64_t cv64;
457 
458 	switch(bref->type) {
459 	case HAMMER2_BREF_TYPE_EMPTY:
460 		type_str = "empty";
461 		break;
462 	case HAMMER2_BREF_TYPE_DIRENT:
463 		type_str = "dirent";
464 		break;
465 	case HAMMER2_BREF_TYPE_INODE:
466 		type_str = "inode";
467 		break;
468 	case HAMMER2_BREF_TYPE_INDIRECT:
469 		type_str = "indblk";
470 		break;
471 	case HAMMER2_BREF_TYPE_DATA:
472 		type_str = "data";
473 		break;
474 	case HAMMER2_BREF_TYPE_VOLUME:
475 		type_str = "volume";
476 		break;
477 	case HAMMER2_BREF_TYPE_FREEMAP:
478 		type_str = "freemap";
479 		break;
480 	case HAMMER2_BREF_TYPE_FREEMAP_NODE:
481 		type_str = "fmapnode";
482 		break;
483 	case HAMMER2_BREF_TYPE_FREEMAP_LEAF:
484 		type_str = "fbitmap";
485 		break;
486 	default:
487 		type_str = "unknown";
488 		break;
489 	}
490 
491 	tabprintf(tab,
492 		  "%s.%-3d %016jx %016jx/%-2d "
493 		  "mir=%016jx mod=%016jx leafcnt=%d ",
494 	       type_str, bi, (intmax_t)bref->data_off,
495 	       (intmax_t)bref->key, (intmax_t)bref->keybits,
496 	       (intmax_t)bref->mirror_tid, (intmax_t)bref->modify_tid,
497 	       bref->leaf_count);
498 	tab += SHOW_TAB;
499 	if (bref->flags)
500 		printf("flags=%02x ", bref->flags);
501 	if (bref->type == HAMMER2_BREF_TYPE_FREEMAP_NODE ||
502 	    bref->type == HAMMER2_BREF_TYPE_FREEMAP_LEAF) {
503 		printf("bigmask=%08x avail=%ld ",
504 			bref->check.freemap.bigmask, bref->check.freemap.avail);
505 	}
506 
507 	bytes = (bref->data_off & HAMMER2_OFF_MASK_RADIX);
508 	if (bytes)
509 		bytes = (size_t)1 << bytes;
510 	if (bytes) {
511 		hammer2_off_t io_off;
512 		hammer2_off_t io_base;
513 		size_t io_bytes;
514 		size_t boff;
515 
516 		io_off = bref->data_off & ~HAMMER2_OFF_MASK_RADIX;
517 		io_base = io_off & ~(hammer2_off_t)(HAMMER2_MINIOSIZE - 1);
518 		io_bytes = bytes;
519 		boff = io_off - io_base;
520 
521 		io_bytes = HAMMER2_MINIOSIZE;
522 		while (io_bytes + boff < bytes)
523 			io_bytes <<= 1;
524 
525 		if (io_bytes > sizeof(media)) {
526 			printf("(bad block size %zd)\n", bytes);
527 			return;
528 		}
529 		if (bref->type != HAMMER2_BREF_TYPE_DATA || VerboseOpt >= 1) {
530 			lseek(fd, io_base, 0);
531 			if (read(fd, &media, io_bytes) != (ssize_t)io_bytes) {
532 				printf("(media read failed)\n");
533 				return;
534 			}
535 			if (boff)
536 				bcopy((char *)&media + boff, &media, bytes);
537 		}
538 	}
539 
540 	bscan = NULL;
541 	bcount = 0;
542 	didnl = 1;
543 	namelen = 0;
544 	failed = 0;
545 
546 	/*
547 	 * Check data integrity in verbose mode, otherwise we are just doing
548 	 * a quick meta-data scan.  Meta-data integrity is always checked.
549 	 * (Also see the check above that ensures the media data is loaded,
550 	 * otherwise there's no data to check!).
551 	 *
552 	 * WARNING! bref->check state may be used for other things when
553 	 *	    bref has no data (bytes == 0).
554 	 */
555 	if (bytes &&
556 	    (bref->type != HAMMER2_BREF_TYPE_DATA || VerboseOpt >= 1)) {
557 		switch(HAMMER2_DEC_CHECK(bref->methods)) {
558 		case HAMMER2_CHECK_NONE:
559 			printf("(meth %02x) ", bref->methods);
560 			break;
561 		case HAMMER2_CHECK_DISABLED:
562 			printf("(meth %02x) ", bref->methods);
563 			break;
564 		case HAMMER2_CHECK_ISCSI32:
565 			cv = hammer2_icrc32(&media, bytes);
566 			if (bref->check.iscsi32.value != cv) {
567 				printf("(icrc %02x:%08x/%08x failed) ",
568 				       bref->methods,
569 				       bref->check.iscsi32.value,
570 				       cv);
571 				failed = 1;
572 			} else {
573 				printf("(meth %02x, iscsi32=%08x) ",
574 				       bref->methods, cv);
575 			}
576 			break;
577 		case HAMMER2_CHECK_XXHASH64:
578 			cv64 = XXH64(&media, bytes, XXH_HAMMER2_SEED);
579 			if (bref->check.xxhash64.value != cv64) {
580 				printf("(xxhash64 %02x:%016jx/%016jx failed) ",
581 				       bref->methods,
582 				       bref->check.xxhash64.value,
583 				       cv64);
584 				failed = 1;
585 			} else {
586 				printf("(meth %02x, xxh=%016jx) ",
587 				       bref->methods, cv64);
588 			}
589 			break;
590 		case HAMMER2_CHECK_SHA192:
591 			printf("(meth %02x) ", bref->methods);
592 			break;
593 		case HAMMER2_CHECK_FREEMAP:
594 			cv = hammer2_icrc32(&media, bytes);
595 			if (bref->check.freemap.icrc32 != cv) {
596 				printf("(fcrc %02x:%08x/%08x failed) ",
597 					bref->methods,
598 					bref->check.freemap.icrc32,
599 					cv);
600 				failed = 1;
601 			} else {
602 				printf("(meth %02x, fcrc=%08x) ",
603 					bref->methods, cv);
604 			}
605 			break;
606 		}
607 	}
608 
609 	switch(bref->type) {
610 	case HAMMER2_BREF_TYPE_EMPTY:
611 		obrace = 0;
612 		break;
613 	case HAMMER2_BREF_TYPE_DIRENT:
614 		printf("{\n");
615 		if (bref->embed.dirent.namlen <= sizeof(bref->check.buf)) {
616 			tabprintf(tab, "filename \"%*.*s\"\n",
617 				bref->embed.dirent.namlen,
618 				bref->embed.dirent.namlen,
619 				bref->check.buf);
620 		} else {
621 			tabprintf(tab, "filename \"%*.*s\"\n",
622 				bref->embed.dirent.namlen,
623 				bref->embed.dirent.namlen,
624 				media.buf);
625 		}
626 		tabprintf(tab, "inum 0x%016jx\n",
627 			(uintmax_t)bref->embed.dirent.inum);
628 		tabprintf(tab, "type     %s\n",
629 			  hammer2_iptype_to_str(bref->embed.dirent.type));
630 		break;
631 	case HAMMER2_BREF_TYPE_INODE:
632 		printf("{\n");
633 		if (media.ipdata.meta.op_flags & HAMMER2_OPFLAG_DIRECTDATA) {
634 			/* no blockrefs */
635 		} else {
636 			bscan = &media.ipdata.u.blockset.blockref[0];
637 			bcount = HAMMER2_SET_COUNT;
638 		}
639 		namelen = media.ipdata.meta.name_len;
640 		if (namelen > HAMMER2_INODE_MAXNAME)
641 			namelen = 0;
642 		tabprintf(tab, "filename \"%*.*s\"\n",
643 			  namelen, namelen, media.ipdata.filename);
644 		tabprintf(tab, "version  %d\n", media.ipdata.meta.version);
645 		tabprintf(tab, "uflags   0x%08x\n",
646 			  media.ipdata.meta.uflags);
647 		if (media.ipdata.meta.rmajor || media.ipdata.meta.rminor) {
648 			tabprintf(tab, "rmajor   %d\n",
649 				  media.ipdata.meta.rmajor);
650 			tabprintf(tab, "rminor   %d\n",
651 				  media.ipdata.meta.rminor);
652 		}
653 		tabprintf(tab, "ctime    %s\n",
654 			  hammer2_time64_to_str(media.ipdata.meta.ctime, &str));
655 		tabprintf(tab, "mtime    %s\n",
656 			  hammer2_time64_to_str(media.ipdata.meta.mtime, &str));
657 		tabprintf(tab, "atime    %s\n",
658 			  hammer2_time64_to_str(media.ipdata.meta.atime, &str));
659 		tabprintf(tab, "btime    %s\n",
660 			  hammer2_time64_to_str(media.ipdata.meta.btime, &str));
661 		tabprintf(tab, "uid      %s\n",
662 			  hammer2_uuid_to_str(&media.ipdata.meta.uid, &str));
663 		tabprintf(tab, "gid      %s\n",
664 			  hammer2_uuid_to_str(&media.ipdata.meta.gid, &str));
665 		tabprintf(tab, "type     %s\n",
666 			  hammer2_iptype_to_str(media.ipdata.meta.type));
667 		tabprintf(tab, "opflgs   0x%02x\n",
668 			  media.ipdata.meta.op_flags);
669 		tabprintf(tab, "capflgs  0x%04x\n",
670 			  media.ipdata.meta.cap_flags);
671 		tabprintf(tab, "mode     %-7o\n",
672 			  media.ipdata.meta.mode);
673 		tabprintf(tab, "inum     0x%016jx\n",
674 			  media.ipdata.meta.inum);
675 		tabprintf(tab, "size     %ju\n",
676 			  (uintmax_t)media.ipdata.meta.size);
677 		tabprintf(tab, "nlinks   %ju\n",
678 			  (uintmax_t)media.ipdata.meta.nlinks);
679 		tabprintf(tab, "iparent  0x%016jx\n",
680 			  (uintmax_t)media.ipdata.meta.iparent);
681 		tabprintf(tab, "name_key 0x%016jx\n",
682 			  (uintmax_t)media.ipdata.meta.name_key);
683 		tabprintf(tab, "name_len %u\n",
684 			  media.ipdata.meta.name_len);
685 		tabprintf(tab, "ncopies  %u\n",
686 			  media.ipdata.meta.ncopies);
687 		tabprintf(tab, "compalg  %u\n",
688 			  media.ipdata.meta.comp_algo);
689 		tabprintf(tab, "checkalg %u\n",
690 			  media.ipdata.meta.check_algo);
691 		if ((media.ipdata.meta.op_flags & HAMMER2_OPFLAG_PFSROOT) ||
692 		    media.ipdata.meta.pfs_type == HAMMER2_PFSTYPE_SUPROOT) {
693 			tabprintf(tab, "pfs_type %u (%s)\n",
694 				  media.ipdata.meta.pfs_type,
695 				  hammer2_pfstype_to_str(media.ipdata.meta.pfs_type));
696 			tabprintf(tab, "pfs_inum 0x%016jx\n",
697 				  (uintmax_t)media.ipdata.meta.pfs_inum);
698 			tabprintf(tab, "pfs_clid %s\n",
699 				  hammer2_uuid_to_str(&media.ipdata.meta.pfs_clid,
700 						      &str));
701 			tabprintf(tab, "pfs_fsid %s\n",
702 				  hammer2_uuid_to_str(&media.ipdata.meta.pfs_fsid,
703 						      &str));
704 			tabprintf(tab, "pfs_lsnap_tid 0x%016jx\n",
705 				  (uintmax_t)media.ipdata.meta.pfs_lsnap_tid);
706 		}
707 		tabprintf(tab, "data_quota  %ju\n",
708 			  (uintmax_t)media.ipdata.meta.data_quota);
709 		tabprintf(tab, "data_count  %ju\n",
710 			  (uintmax_t)bref->embed.stats.data_count);
711 		tabprintf(tab, "inode_quota %ju\n",
712 			  (uintmax_t)media.ipdata.meta.inode_quota);
713 		tabprintf(tab, "inode_count %ju\n",
714 			  (uintmax_t)bref->embed.stats.inode_count);
715 		break;
716 	case HAMMER2_BREF_TYPE_INDIRECT:
717 		bscan = &media.npdata[0];
718 		bcount = bytes / sizeof(hammer2_blockref_t);
719 		didnl = 1;
720 		printf("{\n");
721 		break;
722 	case HAMMER2_BREF_TYPE_DATA:
723 #if 0
724 		if (VerboseOpt >= 2) {
725 			printf("{\n");
726 		} else
727 #endif
728 		{
729 			printf("\n");
730 			obrace = 0;
731 		}
732 		break;
733 	case HAMMER2_BREF_TYPE_VOLUME:
734 		printf("mirror_tid=%016jx freemap_tid=%016jx ",
735 			media.voldata.mirror_tid,
736 			media.voldata.freemap_tid);
737 		if (dofreemap) {
738 			bscan = &media.voldata.freemap_blockset.blockref[0];
739 			bcount = HAMMER2_SET_COUNT;
740 		} else {
741 			bscan = &media.voldata.sroot_blockset.blockref[0];
742 			bcount = HAMMER2_SET_COUNT;
743 		}
744 		printf("{\n");
745 		break;
746 	case HAMMER2_BREF_TYPE_FREEMAP_LEAF:
747 		printf("{\n");
748 		for (i = 0; i < HAMMER2_FREEMAP_COUNT; ++i) {
749 			hammer2_off_t data_off;
750 
751 			data_off = bref->key +
752 				   i * 256 * HAMMER2_FREEMAP_BLOCK_SIZE;
753 			/*
754 			if (media.bmdata[i].class == 0 &&
755 			    media.bmdata[i].avail == 0) {
756 				continue;
757 			}
758 			*/
759 #if HAMMER2_BMAP_ELEMENTS != 8
760 #error "cmd_debug.c: HAMMER2_BMAP_ELEMENTS expected to be 8"
761 #endif
762 
763 			tabprintf(tab + 4, "%016jx %04d.%04x (avail=%7d) "
764 				  "%016jx %016jx %016jx %016jx "
765 				  "%016jx %016jx %016jx %016jx\n",
766 				  data_off,
767 				  i, media.bmdata[i].class,
768 				  media.bmdata[i].avail,
769 				  media.bmdata[i].bitmapq[0],
770 				  media.bmdata[i].bitmapq[1],
771 				  media.bmdata[i].bitmapq[2],
772 				  media.bmdata[i].bitmapq[3],
773 				  media.bmdata[i].bitmapq[4],
774 				  media.bmdata[i].bitmapq[5],
775 				  media.bmdata[i].bitmapq[6],
776 				  media.bmdata[i].bitmapq[7]);
777 			if (data_off >= voldata->aux_end &&
778 			    data_off < voldata->volu_size) {
779 				CountFreeBlocks(&media.bmdata[i],
780 						&TotalFreeAccum16,
781 						&TotalFreeAccum64);
782 			}
783 		}
784 		tabprintf(tab, "}\n");
785 		break;
786 	case HAMMER2_BREF_TYPE_FREEMAP_NODE:
787 		printf("{\n");
788 		bscan = &media.npdata[0];
789 		bcount = bytes / sizeof(hammer2_blockref_t);
790 		break;
791 	default:
792 		printf("\n");
793 		obrace = 0;
794 		break;
795 	}
796 	if (str)
797 		free(str);
798 
799 	/*
800 	 * Recurse if norecurse == 0.  If the CRC failed, pass norecurse = 1.
801 	 * That is, if an indirect or inode fails we still try to list its
802 	 * direct children to help with debugging, but go no further than
803 	 * that because they are probably garbage.
804 	 */
805 	for (i = 0; norecurse == 0 && i < bcount; ++i) {
806 		if (bscan[i].type != HAMMER2_BREF_TYPE_EMPTY) {
807 			if (didnl == 0) {
808 				printf("\n");
809 				didnl = 1;
810 			}
811 			show_bref(voldata, fd, tab,
812 				  i, &bscan[i], dofreemap, failed);
813 		}
814 	}
815 	tab -= SHOW_TAB;
816 	if (obrace) {
817 		if (bref->type == HAMMER2_BREF_TYPE_INODE)
818 			tabprintf(tab, "} (%s.%d, \"%*.*s\")\n",
819 				  type_str, bi,
820 				  namelen, namelen, media.ipdata.filename);
821 		else
822 			tabprintf(tab, "} (%s.%d)\n", type_str,bi);
823 	}
824 }
825 
826 static
827 void
828 CountFreeBlocks(hammer2_bmap_data_t *bmap,
829 		hammer2_off_t *accum16, hammer2_off_t *accum64)
830 {
831 	int i;
832 	int j;
833 
834 	for (i = 0; i < 8; ++i) {
835 		uint64_t bm = bmap->bitmapq[i];
836 		uint64_t mask;
837 
838 		mask = 0x03;
839 		for (j = 0; j < 64; j += 2) {
840 			if ((bm & mask) == 0)
841 				*accum16 += 16384;
842 		}
843 		mask = 0xFF;
844 		for (j = 0; j < 64; j += 8) {
845 			if ((bm & mask) == 0)
846 				*accum64 += 65536;
847 		}
848 	}
849 }
850 
851 int
852 cmd_hash(int ac, const char **av)
853 {
854 	int i;
855 
856 	for (i = 0; i < ac; ++i) {
857 		printf("%016jx %s\n", dirhash(av[i], strlen(av[i])), av[i]);
858 	}
859 	return(0);
860 }
861 
862 int
863 cmd_chaindump(const char *path)
864 {
865 	int dummy = 0;
866 	int fd;
867 
868 	fd = open(path, O_RDONLY);
869 	if (fd >= 0) {
870 		ioctl(fd, HAMMER2IOC_DEBUG_DUMP, &dummy);
871 		close(fd);
872 	} else {
873 		fprintf(stderr, "unable to open %s\n", path);
874 	}
875 	return 0;
876 }
877 
878 
879 static
880 void
881 tabprintf(int tab, const char *ctl, ...)
882 {
883 	va_list va;
884 
885 	printf("%*.*s", tab, tab, "");
886 	va_start(va, ctl);
887 	vprintf(ctl, va);
888 	va_end(va);
889 }
890