xref: /dragonfly/sbin/hammer2/cmd_debug.c (revision b29f78b5)
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 
43 /************************************************************************
44  *				    SHELL				*
45  ************************************************************************/
46 
47 int
48 cmd_shell(const char *hostname)
49 {
50 	dmsg_master_service_info_t *info;
51 	pthread_t thread;
52 	int fd;
53 
54 	fd = dmsg_connect(hostname);
55 	if (fd < 0)
56 		return 1;
57 
58 	info = malloc(sizeof(*info));
59 	bzero(info, sizeof(*info));
60 	info->fd = fd;
61 	info->detachme = 0;
62 	info->usrmsg_callback = shell_msghandler;
63 	info->altmsg_callback = shell_ttymsg;
64 	info->label = strdup("debug");
65 	pthread_create(&thread, NULL, dmsg_master_service, info);
66 	pthread_join(thread, NULL);
67 
68 	return 0;
69 }
70 
71 #if 0
72 int
73 cmd_shell(const char *hostname)
74 {
75 	struct dmsg_iocom iocom;
76 	dmsg_msg_t *msg;
77 	int fd;
78 
79 	/*
80 	 * Connect to the target
81 	 */
82 	fd = dmsg_connect(hostname);
83 	if (fd < 0)
84 		return 1;
85 
86 	/*
87 	 * Initialize the session and transmit an empty DMSG_DBG_SHELL
88 	 * to cause the remote end to generate a prompt.
89 	 */
90 	dmsg_iocom_init(&iocom, fd, 0,
91 			NULL,
92 			shell_rcvmsg,
93 			hammer2_shell_parse,
94 			shell_ttymsg);
95 	fcntl(0, F_SETFL, O_NONBLOCK);
96 	printf("debug: connected\n");
97 
98 	msg = dmsg_msg_alloc(&iocom.state0, 0, DMSG_DBG_SHELL, NULL, NULL);
99 	dmsg_msg_write(msg);
100 	dmsg_iocom_core(&iocom);
101 	fprintf(stderr, "debug: disconnected\n");
102 	close(fd);
103 	return 0;
104 }
105 #endif
106 
107 /*
108  * Debug session front-end
109  *
110  * Callback from dmsg_iocom_core() when messages might be present
111  * on the socket.
112  */
113 static
114 void
115 shell_msghandler(dmsg_msg_t *msg, int unmanaged)
116 {
117 	dmsg_msg_t *nmsg;
118 
119 	switch(msg->tcmd) {
120 #if 0
121 	case DMSG_LNK_ERROR:
122 	case DMSG_LNK_ERROR | DMSGF_REPLY:
123 		/*
124 		 * One-way non-transactional LNK_ERROR messages typically
125 		 * indicate a connection failure.  Error code 0 is used by
126 		 * the debug shell to indicate no more results from last cmd.
127 		 */
128 		if (msg->any.head.error) {
129 			fprintf(stderr, "Stream failure: %s\n",
130 				dmsg_msg_str(msg));
131 		} else {
132 			write(1, "debug> ", 7);
133 		}
134 		break;
135 	case DMSG_LNK_ERROR | DMSGF_DELETE:
136 		/* ignore termination of LNK_CONN */
137 		break;
138 #endif
139 	case DMSG_DBG_SHELL:
140 		/*
141 		 * We send the commands, not accept them.
142 		 * (one-way message, not transactional)
143 		 */
144 		if (unmanaged)
145 			dmsg_msg_reply(msg, DMSG_ERR_NOSUPP);
146 		break;
147 	case DMSG_DBG_SHELL | DMSGF_REPLY:
148 		/*
149 		 * A reply from the remote is data we copy to stdout.
150 		 * (one-way message, not transactional)
151 		 */
152 		if (msg->aux_size) {
153 			msg->aux_data[msg->aux_size - 1] = 0;
154 			write(1, msg->aux_data, strlen(msg->aux_data));
155 		}
156 		break;
157 #if 1
158 	case DMSG_LNK_CONN | DMSGF_CREATE:
159 		fprintf(stderr, "Debug Shell received LNK_CONN\n");
160 		nmsg = dmsg_msg_alloc(&msg->state->iocom->state0, 0,
161 				      DMSG_DBG_SHELL,
162 				      NULL, NULL);
163 		dmsg_msg_write(nmsg);
164 		dmsg_msg_reply(msg, DMSG_ERR_NOSUPP);
165 		break;
166 	case DMSG_LNK_CONN | DMSGF_DELETE:
167 		break;
168 #endif
169 	default:
170 		/*
171 		 * Ignore any unknown messages, Terminate any unknown
172 		 * transactions with an error.
173 		 */
174 		fprintf(stderr, "Unknown message: %s\n", dmsg_msg_str(msg));
175 		if (unmanaged) {
176 			if (msg->any.head.cmd & DMSGF_CREATE)
177 				dmsg_msg_reply(msg, DMSG_ERR_NOSUPP);
178 			if (msg->any.head.cmd & DMSGF_DELETE)
179 				dmsg_msg_reply(msg, DMSG_ERR_NOSUPP);
180 		}
181 		break;
182 	}
183 }
184 
185 /*
186  * Debug session front-end
187  */
188 static
189 void
190 shell_ttymsg(dmsg_iocom_t *iocom)
191 {
192 	dmsg_state_t *pstate;
193 	dmsg_msg_t *msg;
194 	char buf[256];
195 	char *cmd;
196 	size_t len;
197 
198 	if (fgets(buf, sizeof(buf), stdin) != NULL) {
199 		if (buf[0] == '@') {
200 			pstate = dmsg_findspan(strtok(buf + 1, " \t\n"));
201 			cmd = strtok(NULL, "\n");
202 		} else {
203 			pstate = &iocom->state0;
204 			cmd = strtok(buf, "\n");
205 		}
206 		if (cmd && pstate) {
207 			len = strlen(cmd) + 1;
208 			msg = dmsg_msg_alloc(pstate, len, DMSG_DBG_SHELL,
209 					     NULL, NULL);
210 			bcopy(cmd, msg->aux_data, len);
211 			dmsg_msg_write(msg);
212 		} else if (cmd) {
213 			fprintf(stderr, "@msgid not found\n");
214 		} else {
215 			/*
216 			 * This should cause the remote end to generate
217 			 * a debug> prompt (and thus shows that there is
218 			 * connectivity).
219 			 */
220 			msg = dmsg_msg_alloc(pstate, 0, DMSG_DBG_SHELL,
221 					     NULL, NULL);
222 			dmsg_msg_write(msg);
223 		}
224 	} else if (feof(stdin)) {
225 		/*
226 		 * Set EOF flag without setting any error code for normal
227 		 * EOF.
228 		 */
229 		iocom->flags |= DMSG_IOCOMF_EOF;
230 	} else {
231 		clearerr(stdin);
232 	}
233 }
234 
235 /*
236  * Debug session back-end (on remote side)
237  */
238 static void shell_span(dmsg_msg_t *msg, char *cmdbuf);
239 
240 void
241 hammer2_shell_parse(dmsg_msg_t *msg, int unmanaged)
242 {
243 	dmsg_iocom_t *iocom = msg->state->iocom;
244 	char *cmdbuf;
245 	char *cmdp;
246 	uint32_t cmd;
247 
248 	/*
249 	 * Filter on debug shell commands only
250 	 */
251 	cmd = msg->any.head.cmd;
252 	if ((cmd & DMSGF_PROTOS) != DMSG_PROTO_DBG) {
253 		if (unmanaged)
254 			dmsg_msg_reply(msg, DMSG_ERR_NOSUPP);
255 		return;
256 	}
257 	if ((cmd & DMSGF_CMDSWMASK) != DMSG_DBG_SHELL) {
258 		if (unmanaged)
259 			dmsg_msg_reply(msg, DMSG_ERR_NOSUPP);
260 		return;
261 	}
262 
263 	/*
264 	 * Debug shell command
265 	 */
266 	cmdbuf = msg->aux_data;
267 	cmdp = strsep(&cmdbuf, " \t");
268 
269 	if (cmdp == NULL || *cmdp == 0) {
270 		;
271 	} else if (strcmp(cmdp, "span") == 0) {
272 		shell_span(msg, cmdbuf);
273 	} else if (strcmp(cmdp, "tree") == 0) {
274 		dmsg_shell_tree(iocom, cmdbuf); /* dump spanning tree */
275 	} else if (strcmp(cmdp, "help") == 0 || strcmp(cmdp, "?") == 0) {
276 		dmsg_printf(iocom, "help            Command help\n");
277 		dmsg_printf(iocom, "span <host>     Span to target host\n");
278 		dmsg_printf(iocom, "tree            Dump spanning tree\n");
279 		dmsg_printf(iocom, "@span <cmd>     Issue via circuit\n");
280 	} else {
281 		dmsg_printf(iocom, "Unrecognized command: %s\n", cmdp);
282 	}
283 	dmsg_printf(iocom, "debug> ");
284 }
285 
286 static void
287 shell_span(dmsg_msg_t *msg, char *cmdbuf)
288 {
289 	dmsg_iocom_t *iocom = msg->state->iocom;
290 	dmsg_master_service_info_t *info;
291 	const char *hostname = strsep(&cmdbuf, " \t");
292 	pthread_t thread;
293 	int fd;
294 
295 	/*
296 	 * Connect to the target
297 	 */
298 	if (hostname == NULL) {
299 		fd = -1;
300 	} else {
301 		fd = dmsg_connect(hostname);
302 	}
303 
304 	/*
305 	 * Start master service
306 	 */
307 	if (fd < 0) {
308 		dmsg_printf(iocom, "Connection to %s failed\n", hostname);
309 	} else {
310 		dmsg_printf(iocom, "Connected to %s\n", hostname);
311 
312 		info = malloc(sizeof(*info));
313 		bzero(info, sizeof(*info));
314 		info->fd = fd;
315 		info->detachme = 1;
316 		info->usrmsg_callback = hammer2_shell_parse;
317 		info->label = strdup("client");
318 
319 		pthread_create(&thread, NULL, dmsg_master_service, info);
320 		/*pthread_join(thread, &res);*/
321 	}
322 }
323 
324 /************************************************************************
325  *				DEBUGSPAN				*
326  ************************************************************************
327  *
328  * Connect to the target manually (not via the cluster list embedded in
329  * a hammer2 filesystem) and initiate the SPAN protocol.
330  */
331 int
332 cmd_debugspan(const char *hostname)
333 {
334 	pthread_t thread;
335 	int fd;
336 	void *res;
337 
338 	/*
339 	 * Connect to the target
340 	 */
341 	fd = dmsg_connect(hostname);
342 	if (fd < 0)
343 		return 1;
344 
345 	printf("debugspan: connected to %s, starting CONN/SPAN\n", hostname);
346 	pthread_create(&thread, NULL,
347 		       dmsg_master_service, (void *)(intptr_t)fd);
348 	pthread_join(thread, &res);
349 	return(0);
350 }
351 
352 /************************************************************************
353  *				    SHOW				*
354  ************************************************************************/
355 
356 static void show_bref(int fd, int tab, int bi, hammer2_blockref_t *bref,
357 			int dofreemap);
358 static void tabprintf(int tab, const char *ctl, ...);
359 
360 int
361 cmd_show(const char *devpath, int dofreemap)
362 {
363 	hammer2_blockref_t broot;
364 	hammer2_blockref_t best;
365 	hammer2_media_data_t media;
366 	int fd;
367 	int i;
368 	int best_i;
369 
370 	fd = open(devpath, O_RDONLY);
371 	if (fd < 0) {
372 		perror("open");
373 		return 1;
374 	}
375 
376 	/*
377 	 * Show the tree using the best volume header.
378 	 * -vvv will show the tree for all four volume headers.
379 	 */
380 	best_i = -1;
381 	bzero(&best, sizeof(best));
382 	for (i = 0; i < 4; ++i) {
383 		bzero(&broot, sizeof(broot));
384 		broot.type = HAMMER2_BREF_TYPE_VOLUME;
385 		broot.data_off = (i * HAMMER2_ZONE_BYTES64) |
386 				 HAMMER2_PBUFRADIX;
387 		lseek(fd, broot.data_off & ~HAMMER2_OFF_MASK_RADIX, 0);
388 		if (read(fd, &media, HAMMER2_PBUFSIZE) ==
389 		    (ssize_t)HAMMER2_PBUFSIZE) {
390 			broot.mirror_tid = media.voldata.mirror_tid;
391 			if (best_i < 0 || best.mirror_tid < broot.mirror_tid) {
392 				best_i = i;
393 				best = broot;
394 			}
395 			if (VerboseOpt >= 3)
396 				show_bref(fd, 0, i, &broot, dofreemap);
397 		}
398 	}
399 	if (VerboseOpt < 3)
400 		show_bref(fd, 0, best_i, &best, dofreemap);
401 	close(fd);
402 
403 	return 0;
404 }
405 
406 extern uint32_t iscsi_crc32(const void *buf, size_t size);
407 static void
408 show_bref(int fd, int tab, int bi, hammer2_blockref_t *bref, int dofreemap)
409 {
410 	hammer2_media_data_t media;
411 	hammer2_blockref_t *bscan;
412 	int bcount;
413 	int i;
414 	int didnl;
415 	int namelen;
416 	int obrace = 1;
417 	size_t bytes;
418 	const char *type_str;
419 	char *str = NULL;
420 	uint32_t cv;
421 
422 	switch(bref->type) {
423 	case HAMMER2_BREF_TYPE_EMPTY:
424 		type_str = "empty";
425 		break;
426 	case HAMMER2_BREF_TYPE_INODE:
427 		type_str = "inode";
428 		break;
429 	case HAMMER2_BREF_TYPE_INDIRECT:
430 		type_str = "indblk";
431 		break;
432 	case HAMMER2_BREF_TYPE_DATA:
433 		type_str = "data";
434 		break;
435 	case HAMMER2_BREF_TYPE_VOLUME:
436 		type_str = "volume";
437 		break;
438 	case HAMMER2_BREF_TYPE_FREEMAP:
439 		type_str = "freemap";
440 		break;
441 	case HAMMER2_BREF_TYPE_FREEMAP_NODE:
442 		type_str = "fmapnode";
443 		break;
444 	case HAMMER2_BREF_TYPE_FREEMAP_LEAF:
445 		type_str = "fbitmap";
446 		break;
447 	default:
448 		type_str = "unknown";
449 		break;
450 	}
451 
452 	tabprintf(tab, "%s.%-3d %016jx %016jx/%-2d mir=%016jx mod=%016jx ",
453 	       type_str, bi, (intmax_t)bref->data_off,
454 	       (intmax_t)bref->key, (intmax_t)bref->keybits,
455 	       (intmax_t)bref->mirror_tid, (intmax_t)bref->modify_tid);
456 	tab += SHOW_TAB;
457 	if (bref->flags)
458 		printf("flags=%02x ", bref->flags);
459 
460 	bytes = (size_t)1 << (bref->data_off & HAMMER2_OFF_MASK_RADIX);
461 
462 	{
463 		hammer2_off_t io_off;
464 		hammer2_off_t io_base;
465 		size_t io_bytes;
466 		size_t boff;
467 
468 		io_off = bref->data_off & ~HAMMER2_OFF_MASK_RADIX;
469 		io_base = io_off & ~(hammer2_off_t)(HAMMER2_MINIOSIZE - 1);
470 		io_bytes = bytes;
471 		boff = io_off - io_base;
472 
473 		io_bytes = HAMMER2_MINIOSIZE;
474 		while (io_bytes + boff < bytes)
475 			io_bytes <<= 1;
476 
477 		if (io_bytes > sizeof(media)) {
478 			printf("(bad block size %zd)\n", bytes);
479 			return;
480 		}
481 		if (bref->type != HAMMER2_BREF_TYPE_DATA || VerboseOpt >= 1) {
482 			lseek(fd, io_base, 0);
483 			if (read(fd, &media, io_bytes) != (ssize_t)io_bytes) {
484 				printf("(media read failed)\n");
485 				return;
486 			}
487 			if (boff)
488 				bcopy((char *)&media + boff, &media, bytes);
489 		}
490 	}
491 
492 	bscan = NULL;
493 	bcount = 0;
494 	didnl = 1;
495 	namelen = 0;
496 
497 	/*
498 	 * Check data integrity in verbose mode, otherwise we are just doing
499 	 * a quick meta-data scan.  Meta-data integrity is always checked.
500 	 * (Also see the check above that ensures the media data is loaded,
501 	 * otherwise there's no data to check!).
502 	 */
503 	if (bref->type != HAMMER2_BREF_TYPE_DATA || VerboseOpt >= 1) {
504 		switch(HAMMER2_DEC_CHECK(bref->methods)) {
505 		case HAMMER2_CHECK_NONE:
506 			printf("(meth %02x) ", bref->methods);
507 			break;
508 		case HAMMER2_CHECK_DISABLED:
509 			printf("(meth %02x) ", bref->methods);
510 			break;
511 		case HAMMER2_CHECK_ISCSI32:
512 			cv = hammer2_icrc32(&media, bytes);
513 			if (bref->check.iscsi32.value != cv) {
514 				printf("(icrc %02x:%08x/%08x) ",
515 				       bref->methods,
516 				       bref->check.iscsi32.value,
517 				       cv);
518 			} else {
519 				printf("(meth %02x) ", bref->methods);
520 			}
521 			break;
522 		case HAMMER2_CHECK_CRC64:
523 			printf("(meth %02x) ", bref->methods);
524 			break;
525 		case HAMMER2_CHECK_SHA192:
526 			printf("(meth %02x) ", bref->methods);
527 			break;
528 		case HAMMER2_CHECK_FREEMAP:
529 			cv = hammer2_icrc32(&media, bytes);
530 			if (bref->check.freemap.icrc32 != cv) {
531 				printf("(fcrc %02x:%08x/%08x) ",
532 					bref->methods,
533 					bref->check.freemap.icrc32,
534 					cv);
535 			} else {
536 				printf("(meth %02x) ", bref->methods);
537 			}
538 			break;
539 		}
540 	}
541 
542 	switch(bref->type) {
543 	case HAMMER2_BREF_TYPE_EMPTY:
544 		obrace = 0;
545 		break;
546 	case HAMMER2_BREF_TYPE_INODE:
547 		printf("{\n");
548 		if (media.ipdata.op_flags & HAMMER2_OPFLAG_DIRECTDATA) {
549 			/* no blockrefs */
550 		} else {
551 			bscan = &media.ipdata.u.blockset.blockref[0];
552 			bcount = HAMMER2_SET_COUNT;
553 		}
554 		namelen = media.ipdata.name_len;
555 		if (namelen > HAMMER2_INODE_MAXNAME)
556 			namelen = 0;
557 		tabprintf(tab, "filename \"%*.*s\"\n",
558 			  namelen, namelen, media.ipdata.filename);
559 		tabprintf(tab, "version  %d\n", media.ipdata.version);
560 		tabprintf(tab, "uflags   0x%08x\n",
561 			  media.ipdata.uflags);
562 		if (media.ipdata.rmajor || media.ipdata.rminor) {
563 			tabprintf(tab, "rmajor   %d\n",
564 				  media.ipdata.rmajor);
565 			tabprintf(tab, "rminor   %d\n",
566 				  media.ipdata.rminor);
567 		}
568 		tabprintf(tab, "ctime    %s\n",
569 			  hammer2_time64_to_str(media.ipdata.ctime, &str));
570 		tabprintf(tab, "mtime    %s\n",
571 			  hammer2_time64_to_str(media.ipdata.mtime, &str));
572 		tabprintf(tab, "atime    %s\n",
573 			  hammer2_time64_to_str(media.ipdata.atime, &str));
574 		tabprintf(tab, "btime    %s\n",
575 			  hammer2_time64_to_str(media.ipdata.btime, &str));
576 		tabprintf(tab, "uid      %s\n",
577 			  hammer2_uuid_to_str(&media.ipdata.uid, &str));
578 		tabprintf(tab, "gid      %s\n",
579 			  hammer2_uuid_to_str(&media.ipdata.gid, &str));
580 		if (media.ipdata.type == HAMMER2_OBJTYPE_HARDLINK)
581 			tabprintf(tab, "type     %s (%s)\n",
582 			      hammer2_iptype_to_str(media.ipdata.type),
583 			      hammer2_iptype_to_str(media.ipdata.target_type));
584 		else
585 			tabprintf(tab, "type     %s\n",
586 				  hammer2_iptype_to_str(media.ipdata.type));
587 		tabprintf(tab, "opflgs   0x%02x\n",
588 			  media.ipdata.op_flags);
589 		tabprintf(tab, "capflgs  0x%04x\n",
590 			  media.ipdata.cap_flags);
591 		tabprintf(tab, "mode     %-7o\n",
592 			  media.ipdata.mode);
593 		tabprintf(tab, "inum     0x%016jx\n",
594 			  media.ipdata.inum);
595 		tabprintf(tab, "size     %ju\n",
596 			  (uintmax_t)media.ipdata.size);
597 		tabprintf(tab, "nlinks   %ju\n",
598 			  (uintmax_t)media.ipdata.nlinks);
599 		tabprintf(tab, "iparent  0x%016jx\n",
600 			  (uintmax_t)media.ipdata.iparent);
601 		tabprintf(tab, "name_key 0x%016jx\n",
602 			  (uintmax_t)media.ipdata.name_key);
603 		tabprintf(tab, "name_len %u\n",
604 			  media.ipdata.name_len);
605 		tabprintf(tab, "ncopies  %u\n",
606 			  media.ipdata.ncopies);
607 		tabprintf(tab, "compalg  %u\n",
608 			  media.ipdata.comp_algo);
609 		tabprintf(tab, "checkalg %u\n",
610 			  media.ipdata.check_algo);
611 		if (media.ipdata.op_flags & HAMMER2_OPFLAG_PFSROOT) {
612 			tabprintf(tab, "pfs_type %u (%s)\n",
613 				  media.ipdata.pfs_type,
614 				  hammer2_pfstype_to_str(media.ipdata.pfs_type));
615 			tabprintf(tab, "pfs_inum 0x%016jx\n",
616 				  (uintmax_t)media.ipdata.pfs_inum);
617 			tabprintf(tab, "pfs_clid %s\n",
618 				  hammer2_uuid_to_str(&media.ipdata.pfs_clid,
619 						      &str));
620 			tabprintf(tab, "pfs_fsid %s\n",
621 				  hammer2_uuid_to_str(&media.ipdata.pfs_fsid,
622 						      &str));
623 		}
624 		tabprintf(tab, "data_quota  %ju\n",
625 			  (uintmax_t)media.ipdata.data_quota);
626 		tabprintf(tab, "data_count  %ju\n",
627 			  (uintmax_t)media.ipdata.data_count);
628 		tabprintf(tab, "inode_quota %ju\n",
629 			  (uintmax_t)media.ipdata.inode_quota);
630 		tabprintf(tab, "inode_count %ju\n",
631 			  (uintmax_t)media.ipdata.inode_count);
632 		tabprintf(tab, "attr_tid    0x%016jx\n",
633 			  (uintmax_t)media.ipdata.attr_tid);
634 		if (media.ipdata.type == HAMMER2_OBJTYPE_DIRECTORY) {
635 			tabprintf(tab, "dirent_tid  %016jx\n",
636 				  (uintmax_t)media.ipdata.dirent_tid);
637 		}
638 		break;
639 	case HAMMER2_BREF_TYPE_INDIRECT:
640 		bscan = &media.npdata[0];
641 		bcount = bytes / sizeof(hammer2_blockref_t);
642 		didnl = 1;
643 		printf("{\n");
644 		break;
645 	case HAMMER2_BREF_TYPE_DATA:
646 		if (VerboseOpt >= 2) {
647 			printf("{\n");
648 		} else {
649 			printf("\n");
650 			obrace = 0;
651 		}
652 		break;
653 	case HAMMER2_BREF_TYPE_VOLUME:
654 		printf("mirror_tid=%016jx freemap_tid=%016jx ",
655 			media.voldata.mirror_tid,
656 			media.voldata.freemap_tid);
657 		if (dofreemap) {
658 			bscan = &media.voldata.freemap_blockset.blockref[0];
659 			bcount = HAMMER2_SET_COUNT;
660 		} else {
661 			bscan = &media.voldata.sroot_blockset.blockref[0];
662 			bcount = HAMMER2_SET_COUNT;
663 		}
664 		printf("{\n");
665 		break;
666 	case HAMMER2_BREF_TYPE_FREEMAP_LEAF:
667 		printf("{\n");
668 		for (i = 0; i < HAMMER2_FREEMAP_COUNT; ++i) {
669 			if (media.bmdata[i].class == 0 &&
670 			    media.bmdata[i].avail == 0) {
671 				continue;
672 			}
673 			tabprintf(tab + 4, "%04d.%04x (avail=%7d) "
674 				  "%08x %08x %08x %08x %08x %08x %08x %08x\n",
675 				  i, media.bmdata[i].class,
676 				  media.bmdata[i].avail,
677 				  media.bmdata[i].bitmap[0],
678 				  media.bmdata[i].bitmap[1],
679 				  media.bmdata[i].bitmap[2],
680 				  media.bmdata[i].bitmap[3],
681 				  media.bmdata[i].bitmap[4],
682 				  media.bmdata[i].bitmap[5],
683 				  media.bmdata[i].bitmap[6],
684 				  media.bmdata[i].bitmap[7]);
685 		}
686 		tabprintf(tab, "}\n");
687 		break;
688 	case HAMMER2_BREF_TYPE_FREEMAP_NODE:
689 		printf("{\n");
690 		bscan = &media.npdata[0];
691 		bcount = bytes / sizeof(hammer2_blockref_t);
692 		break;
693 	default:
694 		printf("\n");
695 		obrace = 0;
696 		break;
697 	}
698 	if (str)
699 		free(str);
700 	for (i = 0; i < bcount; ++i) {
701 		if (bscan[i].type != HAMMER2_BREF_TYPE_EMPTY) {
702 			if (didnl == 0) {
703 				printf("\n");
704 				didnl = 1;
705 			}
706 			show_bref(fd, tab, i, &bscan[i], dofreemap);
707 		}
708 	}
709 	tab -= SHOW_TAB;
710 	if (obrace) {
711 		if (bref->type == HAMMER2_BREF_TYPE_INODE)
712 			tabprintf(tab, "} (%s.%d, \"%*.*s\")\n",
713 				  type_str, bi,
714 				  namelen, namelen, media.ipdata.filename);
715 		else
716 			tabprintf(tab, "} (%s.%d)\n", type_str,bi);
717 	}
718 }
719 
720 int
721 cmd_hash(int ac, const char **av)
722 {
723 	int i;
724 
725 	for (i = 0; i < ac; ++i) {
726 		printf("%016jx %s\n", dirhash(av[i], strlen(av[i])), av[i]);
727 	}
728 	return(0);
729 }
730 
731 int
732 cmd_chaindump(const char *path)
733 {
734 	int dummy = 0;
735 	int fd;
736 
737 	fd = open(path, O_RDONLY);
738 	if (fd >= 0) {
739 		ioctl(fd, HAMMER2IOC_DEBUG_DUMP, &dummy);
740 		close(fd);
741 	} else {
742 		fprintf(stderr, "unable to open %s\n", path);
743 	}
744 	return 0;
745 }
746 
747 
748 static
749 void
750 tabprintf(int tab, const char *ctl, ...)
751 {
752 	va_list va;
753 
754 	printf("%*.*s", tab, tab, "");
755 	va_start(va, ctl);
756 	vprintf(ctl, va);
757 	va_end(va);
758 }
759