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