1 /**
2 * dump.c
3 *
4 * Copyright (c) 2013 Samsung Electronics Co., Ltd.
5 * http://www.samsung.com/
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11 #include <inttypes.h>
12
13 #include "node.h"
14 #include "fsck.h"
15 #include "xattr.h"
16 #ifdef HAVE_ATTR_XATTR_H
17 #include <attr/xattr.h>
18 #endif
19 #ifdef HAVE_LINUX_XATTR_H
20 #include <linux/xattr.h>
21 #endif
22 #include <locale.h>
23
24 #define BUF_SZ 80
25
26 /* current extent info */
27 struct extent_info dump_extent;
28
29 const char *seg_type_name[SEG_TYPE_MAX + 1] = {
30 "SEG_TYPE_DATA",
31 "SEG_TYPE_CUR_DATA",
32 "SEG_TYPE_NODE",
33 "SEG_TYPE_CUR_NODE",
34 "SEG_TYPE_NONE",
35 };
36
nat_dump(struct f2fs_sb_info * sbi,nid_t start_nat,nid_t end_nat)37 void nat_dump(struct f2fs_sb_info *sbi, nid_t start_nat, nid_t end_nat)
38 {
39 struct f2fs_nat_block *nat_block;
40 struct f2fs_node *node_block;
41 nid_t nid;
42 pgoff_t block_addr;
43 char buf[BUF_SZ];
44 int fd, ret, pack;
45
46 nat_block = (struct f2fs_nat_block *)calloc(BLOCK_SZ, 1);
47 ASSERT(nat_block);
48 node_block = (struct f2fs_node *)calloc(BLOCK_SZ, 1);
49 ASSERT(node_block);
50
51 fd = open("dump_nat", O_CREAT|O_WRONLY|O_TRUNC, 0666);
52 ASSERT(fd >= 0);
53
54 for (nid = start_nat; nid < end_nat; nid++) {
55 struct f2fs_nat_entry raw_nat;
56 struct node_info ni;
57 if(nid == 0 || nid == F2FS_NODE_INO(sbi) ||
58 nid == F2FS_META_INO(sbi))
59 continue;
60
61 ni.nid = nid;
62 block_addr = current_nat_addr(sbi, nid, &pack);
63
64 if (lookup_nat_in_journal(sbi, nid, &raw_nat) >= 0) {
65 node_info_from_raw_nat(&ni, &raw_nat);
66 ret = dev_read_block(node_block, ni.blk_addr);
67 ASSERT(ret >= 0);
68 if (ni.blk_addr != 0x0) {
69 memset(buf, 0, BUF_SZ);
70 snprintf(buf, BUF_SZ,
71 "nid:%5u\tino:%5u\toffset:%5u"
72 "\tblkaddr:%10u\tpack:%d\n",
73 ni.nid, ni.ino,
74 le32_to_cpu(node_block->footer.flag) >>
75 OFFSET_BIT_SHIFT,
76 ni.blk_addr, pack);
77 ret = write(fd, buf, strlen(buf));
78 ASSERT(ret >= 0);
79 }
80 } else {
81 ret = dev_read_block(nat_block, block_addr);
82 ASSERT(ret >= 0);
83 node_info_from_raw_nat(&ni,
84 &nat_block->entries[nid % NAT_ENTRY_PER_BLOCK]);
85 if (ni.blk_addr == 0)
86 continue;
87
88 ret = dev_read_block(node_block, ni.blk_addr);
89 ASSERT(ret >= 0);
90 memset(buf, 0, BUF_SZ);
91 snprintf(buf, BUF_SZ,
92 "nid:%5u\tino:%5u\toffset:%5u"
93 "\tblkaddr:%10u\tpack:%d\n",
94 ni.nid, ni.ino,
95 le32_to_cpu(node_block->footer.flag) >>
96 OFFSET_BIT_SHIFT,
97 ni.blk_addr, pack);
98 ret = write(fd, buf, strlen(buf));
99 ASSERT(ret >= 0);
100 }
101 }
102
103 free(nat_block);
104 free(node_block);
105
106 close(fd);
107 }
108
sit_dump(struct f2fs_sb_info * sbi,unsigned int start_sit,unsigned int end_sit)109 void sit_dump(struct f2fs_sb_info *sbi, unsigned int start_sit,
110 unsigned int end_sit)
111 {
112 struct seg_entry *se;
113 struct sit_info *sit_i = SIT_I(sbi);
114 unsigned int segno;
115 char buf[BUF_SZ];
116 u32 free_segs = 0;;
117 u64 valid_blocks = 0;
118 int ret;
119 int fd, i;
120 unsigned int offset;
121
122 fd = open("dump_sit", O_CREAT|O_WRONLY|O_TRUNC, 0666);
123 ASSERT(fd >= 0);
124
125 snprintf(buf, BUF_SZ, "segment_type(0:HD, 1:WD, 2:CD, "
126 "3:HN, 4:WN, 5:CN)\n");
127 ret = write(fd, buf, strlen(buf));
128 ASSERT(ret >= 0);
129
130 for (segno = start_sit; segno < end_sit; segno++) {
131 se = get_seg_entry(sbi, segno);
132 offset = SIT_BLOCK_OFFSET(sit_i, segno);
133 memset(buf, 0, BUF_SZ);
134 snprintf(buf, BUF_SZ,
135 "\nsegno:%8u\tvblocks:%3u\tseg_type:%d\tsit_pack:%d\n\n",
136 segno, se->valid_blocks, se->type,
137 f2fs_test_bit(offset, sit_i->sit_bitmap) ? 2 : 1);
138
139 ret = write(fd, buf, strlen(buf));
140 ASSERT(ret >= 0);
141
142 if (se->valid_blocks == 0x0) {
143 free_segs++;
144 continue;
145 }
146
147 ASSERT(se->valid_blocks <= 512);
148 valid_blocks += se->valid_blocks;
149
150 for (i = 0; i < 64; i++) {
151 memset(buf, 0, BUF_SZ);
152 snprintf(buf, BUF_SZ, " %02x",
153 *(se->cur_valid_map + i));
154 ret = write(fd, buf, strlen(buf));
155 ASSERT(ret >= 0);
156
157 if ((i + 1) % 16 == 0) {
158 snprintf(buf, BUF_SZ, "\n");
159 ret = write(fd, buf, strlen(buf));
160 ASSERT(ret >= 0);
161 }
162 }
163 }
164
165 memset(buf, 0, BUF_SZ);
166 snprintf(buf, BUF_SZ,
167 "valid_blocks:[0x%" PRIx64 "]\tvalid_segs:%d\t free_segs:%d\n",
168 valid_blocks,
169 SM_I(sbi)->main_segments - free_segs,
170 free_segs);
171 ret = write(fd, buf, strlen(buf));
172 ASSERT(ret >= 0);
173
174 close(fd);
175 }
176
ssa_dump(struct f2fs_sb_info * sbi,int start_ssa,int end_ssa)177 void ssa_dump(struct f2fs_sb_info *sbi, int start_ssa, int end_ssa)
178 {
179 struct f2fs_summary_block *sum_blk;
180 char buf[BUF_SZ];
181 int segno, type, i, ret;
182 int fd;
183
184 fd = open("dump_ssa", O_CREAT|O_WRONLY|O_TRUNC, 0666);
185 ASSERT(fd >= 0);
186
187 snprintf(buf, BUF_SZ, "Note: dump.f2fs -b blkaddr = 0x%x + segno * "
188 " 0x200 + offset\n",
189 sbi->sm_info->main_blkaddr);
190 ret = write(fd, buf, strlen(buf));
191 ASSERT(ret >= 0);
192
193 for (segno = start_ssa; segno < end_ssa; segno++) {
194 sum_blk = get_sum_block(sbi, segno, &type);
195
196 memset(buf, 0, BUF_SZ);
197 switch (type) {
198 case SEG_TYPE_CUR_NODE:
199 snprintf(buf, BUF_SZ, "\n\nsegno: %x, Current Node\n", segno);
200 break;
201 case SEG_TYPE_CUR_DATA:
202 snprintf(buf, BUF_SZ, "\n\nsegno: %x, Current Data\n", segno);
203 break;
204 case SEG_TYPE_NODE:
205 snprintf(buf, BUF_SZ, "\n\nsegno: %x, Node\n", segno);
206 break;
207 case SEG_TYPE_DATA:
208 snprintf(buf, BUF_SZ, "\n\nsegno: %x, Data\n", segno);
209 break;
210 }
211 ret = write(fd, buf, strlen(buf));
212 ASSERT(ret >= 0);
213
214 for (i = 0; i < ENTRIES_IN_SUM; i++) {
215 memset(buf, 0, BUF_SZ);
216 if (i % 10 == 0) {
217 buf[0] = '\n';
218 ret = write(fd, buf, strlen(buf));
219 ASSERT(ret >= 0);
220 }
221 snprintf(buf, BUF_SZ, "[%3d: %6x]", i,
222 le32_to_cpu(sum_blk->entries[i].nid));
223 ret = write(fd, buf, strlen(buf));
224 ASSERT(ret >= 0);
225 }
226 if (type == SEG_TYPE_NODE || type == SEG_TYPE_DATA ||
227 type == SEG_TYPE_MAX)
228 free(sum_blk);
229 }
230 close(fd);
231 }
232
print_extent(bool last)233 static void print_extent(bool last)
234 {
235 if (dump_extent.len == 0)
236 goto out;
237
238 if (dump_extent.len == 1)
239 printf(" %d", dump_extent.blk);
240 else
241 printf(" %d-%d",
242 dump_extent.blk,
243 dump_extent.blk + dump_extent.len - 1);
244 dump_extent.len = 0;
245 out:
246 if (last)
247 printf("\n");
248 }
249
dump_data_blk(struct f2fs_sb_info * sbi,__u64 offset,u32 blkaddr)250 static void dump_data_blk(struct f2fs_sb_info *sbi, __u64 offset, u32 blkaddr)
251 {
252 char buf[F2FS_BLKSIZE];
253
254 if (c.show_file_map) {
255 if (c.show_file_map_max_offset < offset) {
256 ASSERT(blkaddr == NULL_ADDR);
257 return;
258 }
259 if (!is_valid_data_blkaddr(blkaddr)) {
260 print_extent(false);
261 dump_extent.blk = 0;
262 dump_extent.len = 1;
263 print_extent(false);
264 } else if (dump_extent.len == 0) {
265 dump_extent.blk = blkaddr;
266 dump_extent.len = 1;
267 } else if (dump_extent.blk + dump_extent.len == blkaddr) {
268 dump_extent.len++;
269 } else {
270 print_extent(false);
271 dump_extent.blk = blkaddr;
272 dump_extent.len = 1;
273 }
274 return;
275 }
276
277 if (blkaddr == NULL_ADDR)
278 return;
279
280 /* get data */
281 if (blkaddr == NEW_ADDR || !IS_VALID_BLK_ADDR(sbi, blkaddr)) {
282 memset(buf, 0, F2FS_BLKSIZE);
283 } else {
284 int ret;
285
286 ret = dev_read_block(buf, blkaddr);
287 ASSERT(ret >= 0);
288 }
289
290 /* write blkaddr */
291 dev_write_dump(buf, offset, F2FS_BLKSIZE);
292 }
293
dump_node_blk(struct f2fs_sb_info * sbi,int ntype,u32 nid,u32 addr_per_block,u64 * ofs)294 static void dump_node_blk(struct f2fs_sb_info *sbi, int ntype,
295 u32 nid, u32 addr_per_block, u64 *ofs)
296 {
297 struct node_info ni;
298 struct f2fs_node *node_blk;
299 u32 skip = 0;
300 u32 i, idx = 0;
301
302 switch (ntype) {
303 case TYPE_DIRECT_NODE:
304 skip = idx = addr_per_block;
305 break;
306 case TYPE_INDIRECT_NODE:
307 idx = NIDS_PER_BLOCK;
308 skip = idx * addr_per_block;
309 break;
310 case TYPE_DOUBLE_INDIRECT_NODE:
311 skip = 0;
312 idx = NIDS_PER_BLOCK;
313 break;
314 }
315
316 if (nid == 0) {
317 *ofs += skip;
318 return;
319 }
320
321 get_node_info(sbi, nid, &ni);
322
323 node_blk = calloc(BLOCK_SZ, 1);
324 ASSERT(node_blk);
325
326 dev_read_block(node_blk, ni.blk_addr);
327
328 for (i = 0; i < idx; i++) {
329 switch (ntype) {
330 case TYPE_DIRECT_NODE:
331 dump_data_blk(sbi, *ofs * F2FS_BLKSIZE,
332 le32_to_cpu(node_blk->dn.addr[i]));
333 (*ofs)++;
334 break;
335 case TYPE_INDIRECT_NODE:
336 dump_node_blk(sbi, TYPE_DIRECT_NODE,
337 le32_to_cpu(node_blk->in.nid[i]),
338 addr_per_block,
339 ofs);
340 break;
341 case TYPE_DOUBLE_INDIRECT_NODE:
342 dump_node_blk(sbi, TYPE_INDIRECT_NODE,
343 le32_to_cpu(node_blk->in.nid[i]),
344 addr_per_block,
345 ofs);
346 break;
347 }
348 }
349 free(node_blk);
350 }
351
352 #ifdef HAVE_FSETXATTR
dump_xattr(struct f2fs_sb_info * sbi,struct f2fs_node * node_blk)353 static void dump_xattr(struct f2fs_sb_info *sbi, struct f2fs_node *node_blk)
354 {
355 void *xattr;
356 struct f2fs_xattr_entry *ent;
357 char xattr_name[F2FS_NAME_LEN] = {0};
358 int ret;
359
360 xattr = read_all_xattrs(sbi, node_blk);
361 if (!xattr)
362 return;
363
364 list_for_each_xattr(ent, xattr) {
365 char *name = strndup(ent->e_name, ent->e_name_len);
366 void *value = ent->e_name + ent->e_name_len;
367
368 if (!name)
369 continue;
370
371 switch (ent->e_name_index) {
372 case F2FS_XATTR_INDEX_USER:
373 ret = snprintf(xattr_name, F2FS_NAME_LEN, "%s%s",
374 XATTR_USER_PREFIX, name);
375 break;
376
377 case F2FS_XATTR_INDEX_SECURITY:
378 ret = snprintf(xattr_name, F2FS_NAME_LEN, "%s%s",
379 XATTR_SECURITY_PREFIX, name);
380 break;
381 case F2FS_XATTR_INDEX_TRUSTED:
382 ret = snprintf(xattr_name, F2FS_NAME_LEN, "%s%s",
383 XATTR_TRUSTED_PREFIX, name);
384 break;
385 default:
386 MSG(0, "Unknown xattr index 0x%x\n", ent->e_name_index);
387 free(name);
388 continue;
389 }
390 if (ret >= F2FS_NAME_LEN) {
391 MSG(0, "XATTR index 0x%x name too long\n", ent->e_name_index);
392 free(name);
393 continue;
394 }
395
396 DBG(1, "fd %d xattr_name %s\n", c.dump_fd, xattr_name);
397 #if defined(__linux__)
398 ret = fsetxattr(c.dump_fd, xattr_name, value,
399 le16_to_cpu(ent->e_value_size), 0);
400 #elif defined(__APPLE__)
401 ret = fsetxattr(c.dump_fd, xattr_name, value,
402 le16_to_cpu(ent->e_value_size), 0,
403 XATTR_CREATE);
404 #endif
405 if (ret)
406 MSG(0, "XATTR index 0x%x set xattr failed error %d\n",
407 ent->e_name_index, errno);
408
409 free(name);
410 }
411
412 free(xattr);
413 }
414 #else
dump_xattr(struct f2fs_sb_info * UNUSED (sbi),struct f2fs_node * UNUSED (node_blk))415 static void dump_xattr(struct f2fs_sb_info *UNUSED(sbi),
416 struct f2fs_node *UNUSED(node_blk))
417 {
418 MSG(0, "XATTR does not support\n");
419 }
420 #endif
421
dump_inode_blk(struct f2fs_sb_info * sbi,u32 nid,struct f2fs_node * node_blk)422 static int dump_inode_blk(struct f2fs_sb_info *sbi, u32 nid,
423 struct f2fs_node *node_blk)
424 {
425 u32 i = 0;
426 u64 ofs = 0;
427 u32 addr_per_block;
428
429 if((node_blk->i.i_inline & F2FS_INLINE_DATA)) {
430 DBG(3, "ino[0x%x] has inline data!\n", nid);
431 /* recover from inline data */
432 dev_write_dump(((unsigned char *)node_blk) + INLINE_DATA_OFFSET,
433 0, MAX_INLINE_DATA(node_blk));
434 return -1;
435 }
436
437 c.show_file_map_max_offset = f2fs_max_file_offset(&node_blk->i);
438 addr_per_block = ADDRS_PER_BLOCK(&node_blk->i);
439
440 /* check data blocks in inode */
441 for (i = 0; i < ADDRS_PER_INODE(&node_blk->i); i++, ofs++)
442 dump_data_blk(sbi, ofs * F2FS_BLKSIZE, le32_to_cpu(
443 node_blk->i.i_addr[get_extra_isize(node_blk) + i]));
444
445 /* check node blocks in inode */
446 for (i = 0; i < 5; i++) {
447 if (i == 0 || i == 1)
448 dump_node_blk(sbi, TYPE_DIRECT_NODE,
449 le32_to_cpu(node_blk->i.i_nid[i]),
450 addr_per_block,
451 &ofs);
452 else if (i == 2 || i == 3)
453 dump_node_blk(sbi, TYPE_INDIRECT_NODE,
454 le32_to_cpu(node_blk->i.i_nid[i]),
455 addr_per_block,
456 &ofs);
457 else if (i == 4)
458 dump_node_blk(sbi, TYPE_DOUBLE_INDIRECT_NODE,
459 le32_to_cpu(node_blk->i.i_nid[i]),
460 addr_per_block,
461 &ofs);
462 else
463 ASSERT(0);
464 }
465 /* last block in extent cache */
466 print_extent(true);
467
468 dump_xattr(sbi, node_blk);
469 return 0;
470 }
471
dump_file(struct f2fs_sb_info * sbi,struct node_info * ni,struct f2fs_node * node_blk,int force)472 static int dump_file(struct f2fs_sb_info *sbi, struct node_info *ni,
473 struct f2fs_node *node_blk, int force)
474 {
475 struct f2fs_inode *inode = &node_blk->i;
476 u32 imode = le16_to_cpu(inode->i_mode);
477 u32 namelen = le32_to_cpu(inode->i_namelen);
478 char name[F2FS_NAME_LEN + 1] = {0};
479 char path[1024] = {0};
480 char ans[255] = {0};
481 int is_encrypted = file_is_encrypt(inode);
482 int ret;
483
484 if (is_encrypted) {
485 MSG(force, "File is encrypted\n");
486 return -1;
487 }
488
489 if ((!S_ISREG(imode) && !S_ISLNK(imode)) ||
490 namelen == 0 || namelen > F2FS_NAME_LEN) {
491 MSG(force, "Not a regular file or wrong name info\n\n");
492 return -1;
493 }
494 if (force)
495 goto dump;
496
497 /* dump file's data */
498 if (c.show_file_map)
499 return dump_inode_blk(sbi, ni->ino, node_blk);
500
501 printf("Do you want to dump this file into ./lost_found/? [Y/N] ");
502 ret = scanf("%s", ans);
503 ASSERT(ret >= 0);
504
505 if (!strcasecmp(ans, "y")) {
506 dump:
507 ret = system("mkdir -p ./lost_found");
508 ASSERT(ret >= 0);
509
510 /* make a file */
511 strncpy(name, (const char *)inode->i_name, namelen);
512 name[namelen] = 0;
513 sprintf(path, "./lost_found/%s", name);
514
515 c.dump_fd = open(path, O_TRUNC|O_CREAT|O_RDWR, 0666);
516 ASSERT(c.dump_fd >= 0);
517
518 /* dump file's data */
519 dump_inode_blk(sbi, ni->ino, node_blk);
520
521 /* adjust file size */
522 ret = ftruncate(c.dump_fd, le32_to_cpu(inode->i_size));
523 ASSERT(ret >= 0);
524
525 close(c.dump_fd);
526 }
527 return 0;
528 }
529
is_sit_bitmap_set(struct f2fs_sb_info * sbi,u32 blk_addr)530 static bool is_sit_bitmap_set(struct f2fs_sb_info *sbi, u32 blk_addr)
531 {
532 struct seg_entry *se;
533 u32 offset;
534
535 se = get_seg_entry(sbi, GET_SEGNO(sbi, blk_addr));
536 offset = OFFSET_IN_SEG(sbi, blk_addr);
537
538 return f2fs_test_bit(offset,
539 (const char *)se->cur_valid_map) != 0;
540 }
541
dump_node_scan_disk(struct f2fs_sb_info * sbi,nid_t nid)542 void dump_node_scan_disk(struct f2fs_sb_info *sbi, nid_t nid)
543 {
544 struct f2fs_node *node_blk;
545 pgoff_t blkaddr;
546 int ret;
547 pgoff_t start_blkaddr = SM_I(sbi)->main_blkaddr;
548 pgoff_t end_blkaddr = start_blkaddr +
549 (SM_I(sbi)->main_segments << sbi->log_blocks_per_seg);
550
551 node_blk = calloc(BLOCK_SZ, 1);
552 ASSERT(node_blk);
553 MSG(0, "Info: scan all nid: %u from block_addr [%lu: %lu]\n",
554 nid, start_blkaddr, end_blkaddr);
555
556 for (blkaddr = start_blkaddr; blkaddr < end_blkaddr; blkaddr++) {
557 struct seg_entry *se = get_seg_entry(sbi, GET_SEGNO(sbi, blkaddr));
558 if (se->type < CURSEG_HOT_NODE)
559 continue;
560
561 ret = dev_read_block(node_blk, blkaddr);
562 ASSERT(ret >= 0);
563 if (le32_to_cpu(node_blk->footer.ino) != nid ||
564 le32_to_cpu(node_blk->footer.nid) != nid)
565 continue;
566 MSG(0, "Info: nid: %u, blkaddr: %lu\n", nid, blkaddr);
567 MSG(0, "node_blk.footer.flag [0x%x]\n", le32_to_cpu(node_blk->footer.flag));
568 MSG(0, "node_blk.footer.cp_ver [%x]\n", (u32)(cpver_of_node(node_blk)));
569 print_inode_info(sbi, node_blk, 0);
570 }
571
572 free(node_blk);
573 }
574
dump_node(struct f2fs_sb_info * sbi,nid_t nid,int force)575 int dump_node(struct f2fs_sb_info *sbi, nid_t nid, int force)
576 {
577 struct node_info ni;
578 struct f2fs_node *node_blk;
579 int ret = 0;
580
581 get_node_info(sbi, nid, &ni);
582
583 node_blk = calloc(BLOCK_SZ, 1);
584 ASSERT(node_blk);
585
586 DBG(1, "Node ID [0x%x]\n", nid);
587 DBG(1, "nat_entry.block_addr [0x%x]\n", ni.blk_addr);
588 DBG(1, "nat_entry.version [0x%x]\n", ni.version);
589 DBG(1, "nat_entry.ino [0x%x]\n", ni.ino);
590
591 if (!IS_VALID_BLK_ADDR(sbi, ni.blk_addr)) {
592 MSG(force, "Invalid node blkaddr: %u\n\n", ni.blk_addr);
593 goto out;
594 }
595
596 dev_read_block(node_blk, ni.blk_addr);
597
598 if (ni.blk_addr == 0x0)
599 MSG(force, "Invalid nat entry\n\n");
600 else if (!is_sit_bitmap_set(sbi, ni.blk_addr))
601 MSG(force, "Invalid sit bitmap, %u\n\n", ni.blk_addr);
602
603 DBG(1, "node_blk.footer.ino [0x%x]\n", le32_to_cpu(node_blk->footer.ino));
604 DBG(1, "node_blk.footer.nid [0x%x]\n", le32_to_cpu(node_blk->footer.nid));
605
606 if (le32_to_cpu(node_blk->footer.ino) == ni.ino &&
607 le32_to_cpu(node_blk->footer.nid) == ni.nid) {
608 if (!c.show_file_map)
609 print_node_info(sbi, node_blk, force);
610
611 if (ni.ino == ni.nid)
612 ret = dump_file(sbi, &ni, node_blk, force);
613 } else {
614 print_node_info(sbi, node_blk, force);
615 MSG(force, "Invalid (i)node block\n\n");
616 }
617 out:
618 free(node_blk);
619 return ret;
620 }
621
dump_node_from_blkaddr(struct f2fs_sb_info * sbi,u32 blk_addr)622 static void dump_node_from_blkaddr(struct f2fs_sb_info *sbi, u32 blk_addr)
623 {
624 struct f2fs_node *node_blk;
625 int ret;
626
627 node_blk = calloc(BLOCK_SZ, 1);
628 ASSERT(node_blk);
629
630 ret = dev_read_block(node_blk, blk_addr);
631 ASSERT(ret >= 0);
632
633 if (c.dbg_lv > 0)
634 print_node_info(sbi, node_blk, 0);
635 else
636 print_inode_info(sbi, node_blk, 1);
637
638 free(node_blk);
639 }
640
start_bidx_of_node(unsigned int node_ofs,struct f2fs_node * node_blk)641 unsigned int start_bidx_of_node(unsigned int node_ofs,
642 struct f2fs_node *node_blk)
643 {
644 unsigned int indirect_blks = 2 * NIDS_PER_BLOCK + 4;
645 unsigned int bidx;
646
647 if (node_ofs == 0)
648 return 0;
649
650 if (node_ofs <= 2) {
651 bidx = node_ofs - 1;
652 } else if (node_ofs <= indirect_blks) {
653 int dec = (node_ofs - 4) / (NIDS_PER_BLOCK + 1);
654 bidx = node_ofs - 2 - dec;
655 } else {
656 int dec = (node_ofs - indirect_blks - 3) / (NIDS_PER_BLOCK + 1);
657 bidx = node_ofs - 5 - dec;
658 }
659 return bidx * ADDRS_PER_BLOCK(&node_blk->i) +
660 ADDRS_PER_INODE(&node_blk->i);
661 }
662
dump_data_offset(u32 blk_addr,int ofs_in_node)663 static void dump_data_offset(u32 blk_addr, int ofs_in_node)
664 {
665 struct f2fs_node *node_blk;
666 unsigned int bidx;
667 unsigned int node_ofs;
668 int ret;
669
670 node_blk = calloc(BLOCK_SZ, 1);
671 ASSERT(node_blk);
672
673 ret = dev_read_block(node_blk, blk_addr);
674 ASSERT(ret >= 0);
675
676 node_ofs = ofs_of_node(node_blk);
677
678 bidx = start_bidx_of_node(node_ofs, node_blk);
679 bidx += ofs_in_node;
680
681 setlocale(LC_ALL, "");
682 MSG(0, " - Data offset : 0x%x (4KB), %'u (bytes)\n",
683 bidx, bidx * 4096);
684 free(node_blk);
685 }
686
dump_node_offset(u32 blk_addr)687 static void dump_node_offset(u32 blk_addr)
688 {
689 struct f2fs_node *node_blk;
690 int ret;
691
692 node_blk = calloc(BLOCK_SZ, 1);
693 ASSERT(node_blk);
694
695 ret = dev_read_block(node_blk, blk_addr);
696 ASSERT(ret >= 0);
697
698 MSG(0, " - Node offset : 0x%x\n", ofs_of_node(node_blk));
699 free(node_blk);
700 }
701
has_dirent(u32 blk_addr,int is_inline,int * enc_name)702 static int has_dirent(u32 blk_addr, int is_inline, int *enc_name)
703 {
704 struct f2fs_node *node_blk;
705 int ret, is_dentry = 0;
706
707 node_blk = calloc(BLOCK_SZ, 1);
708 ASSERT(node_blk);
709
710 ret = dev_read_block(node_blk, blk_addr);
711 ASSERT(ret >= 0);
712
713 if (IS_INODE(node_blk) && S_ISDIR(le16_to_cpu(node_blk->i.i_mode)))
714 is_dentry = 1;
715
716 if (is_inline && !(node_blk->i.i_inline & F2FS_INLINE_DENTRY))
717 is_dentry = 0;
718
719 *enc_name = file_is_encrypt(&node_blk->i);
720
721 free(node_blk);
722
723 return is_dentry;
724 }
725
dump_dirent(u32 blk_addr,int is_inline,int enc_name)726 static void dump_dirent(u32 blk_addr, int is_inline, int enc_name)
727 {
728 struct f2fs_dentry_ptr d;
729 void *inline_dentry, *blk;
730 int ret, i = 0;
731
732 blk = calloc(BLOCK_SZ, 1);
733 ASSERT(blk);
734
735 ret = dev_read_block(blk, blk_addr);
736 ASSERT(ret >= 0);
737
738 if (is_inline) {
739 inline_dentry = inline_data_addr((struct f2fs_node *)blk);
740 make_dentry_ptr(&d, blk, inline_dentry, 2);
741 } else {
742 make_dentry_ptr(&d, NULL, blk, 1);
743 }
744
745 DBG(1, "%sDentry block:\n", is_inline ? "Inline " : "");
746
747 while (i < d.max) {
748 struct f2fs_dir_entry *de;
749 char en[F2FS_PRINT_NAMELEN];
750 u16 name_len;
751 int enc;
752
753 if (!test_bit_le(i, d.bitmap)) {
754 i++;
755 continue;
756 }
757
758 de = &d.dentry[i];
759
760 if (!de->name_len) {
761 i++;
762 continue;
763 }
764
765 name_len = le16_to_cpu(de->name_len);
766 enc = enc_name;
767
768 if (de->file_type == F2FS_FT_DIR) {
769 if ((d.filename[i][0] == '.' && name_len == 1) ||
770 (d.filename[i][0] == '.' &&
771 d.filename[i][1] == '.' && name_len == 2)) {
772 enc = 0;
773 }
774 }
775
776 pretty_print_filename(d.filename[i], name_len, en, enc);
777
778 DBG(1, "bitmap pos[0x%x] name[%s] len[0x%x] hash[0x%x] ino[0x%x] type[0x%x]\n",
779 i, en,
780 name_len,
781 le32_to_cpu(de->hash_code),
782 le32_to_cpu(de->ino),
783 de->file_type);
784
785 i += GET_DENTRY_SLOTS(name_len);
786 }
787
788 free(blk);
789 }
790
dump_info_from_blkaddr(struct f2fs_sb_info * sbi,u32 blk_addr)791 int dump_info_from_blkaddr(struct f2fs_sb_info *sbi, u32 blk_addr)
792 {
793 nid_t nid;
794 int type;
795 struct f2fs_summary sum_entry;
796 struct node_info ni, ino_ni;
797 int enc_name;
798 int ret = 0;
799
800 MSG(0, "\n== Dump data from block address ==\n\n");
801
802 if (blk_addr < SM_I(sbi)->seg0_blkaddr) {
803 MSG(0, "\nFS Reserved Area for SEG #0: ");
804 ret = -EINVAL;
805 } else if (blk_addr < SIT_I(sbi)->sit_base_addr) {
806 MSG(0, "\nFS Metadata Area: ");
807 ret = -EINVAL;
808 } else if (blk_addr < NM_I(sbi)->nat_blkaddr) {
809 MSG(0, "\nFS SIT Area: ");
810 ret = -EINVAL;
811 } else if (blk_addr < SM_I(sbi)->ssa_blkaddr) {
812 MSG(0, "\nFS NAT Area: ");
813 ret = -EINVAL;
814 } else if (blk_addr < SM_I(sbi)->main_blkaddr) {
815 MSG(0, "\nFS SSA Area: ");
816 ret = -EINVAL;
817 } else if (blk_addr > __end_block_addr(sbi)) {
818 MSG(0, "\nOut of address space: ");
819 ret = -EINVAL;
820 }
821
822 if (ret) {
823 MSG(0, "User data is from 0x%x to 0x%x\n\n",
824 SM_I(sbi)->main_blkaddr,
825 __end_block_addr(sbi));
826 return ret;
827 }
828
829 if (!is_sit_bitmap_set(sbi, blk_addr))
830 MSG(0, "\nblkaddr is not valid\n");
831
832 type = get_sum_entry(sbi, blk_addr, &sum_entry);
833 nid = le32_to_cpu(sum_entry.nid);
834
835 get_node_info(sbi, nid, &ni);
836
837 DBG(1, "Note: blkaddr = main_blkaddr + segno * 512 + offset\n");
838 DBG(1, "Block_addr [0x%x]\n", blk_addr);
839 DBG(1, " - Segno [0x%x]\n", GET_SEGNO(sbi, blk_addr));
840 DBG(1, " - Offset [0x%x]\n", OFFSET_IN_SEG(sbi, blk_addr));
841 DBG(1, "SUM.nid [0x%x]\n", nid);
842 DBG(1, "SUM.type [%s]\n", type >= 0 ?
843 seg_type_name[type] :
844 "Broken");
845 DBG(1, "SUM.version [%d]\n", sum_entry.version);
846 DBG(1, "SUM.ofs_in_node [0x%x]\n", sum_entry.ofs_in_node);
847 DBG(1, "NAT.blkaddr [0x%x]\n", ni.blk_addr);
848 DBG(1, "NAT.ino [0x%x]\n", ni.ino);
849
850 get_node_info(sbi, ni.ino, &ino_ni);
851
852 /* inode block address */
853 if (ni.blk_addr == NULL_ADDR || ino_ni.blk_addr == NULL_ADDR) {
854 MSG(0, "FS Userdata Area: Obsolete block from 0x%x\n",
855 blk_addr);
856 return -EINVAL;
857 }
858
859 /* print inode */
860 if (c.dbg_lv > 0)
861 dump_node_from_blkaddr(sbi, ino_ni.blk_addr);
862
863 if (type == SEG_TYPE_CUR_DATA || type == SEG_TYPE_DATA) {
864 MSG(0, "FS Userdata Area: Data block from 0x%x\n", blk_addr);
865 MSG(0, " - Direct node block : id = 0x%x from 0x%x\n",
866 nid, ni.blk_addr);
867 MSG(0, " - Inode block : id = 0x%x from 0x%x\n",
868 ni.ino, ino_ni.blk_addr);
869 dump_node_from_blkaddr(sbi, ino_ni.blk_addr);
870 dump_data_offset(ni.blk_addr,
871 le16_to_cpu(sum_entry.ofs_in_node));
872
873 if (has_dirent(ino_ni.blk_addr, 0, &enc_name))
874 dump_dirent(blk_addr, 0, enc_name);
875 } else {
876 MSG(0, "FS Userdata Area: Node block from 0x%x\n", blk_addr);
877 if (ni.ino == ni.nid) {
878 MSG(0, " - Inode block : id = 0x%x from 0x%x\n",
879 ni.ino, ino_ni.blk_addr);
880 dump_node_from_blkaddr(sbi, ino_ni.blk_addr);
881
882 if (has_dirent(ino_ni.blk_addr, 1, &enc_name))
883 dump_dirent(blk_addr, 1, enc_name);
884 } else {
885 MSG(0, " - Node block : id = 0x%x from 0x%x\n",
886 nid, ni.blk_addr);
887 MSG(0, " - Inode block : id = 0x%x from 0x%x\n",
888 ni.ino, ino_ni.blk_addr);
889 dump_node_from_blkaddr(sbi, ino_ni.blk_addr);
890 dump_node_offset(ni.blk_addr);
891 }
892 }
893
894 return 0;
895 }
896