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 return;
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 free(node_blk);
301 }
302
303 #ifdef HAVE_FSETXATTR
dump_xattr(struct f2fs_sb_info * sbi,struct f2fs_node * node_blk)304 static void dump_xattr(struct f2fs_sb_info *sbi, struct f2fs_node *node_blk)
305 {
306 void *xattr;
307 struct f2fs_xattr_entry *ent;
308 char xattr_name[F2FS_NAME_LEN] = {0};
309 int ret;
310
311 xattr = read_all_xattrs(sbi, node_blk);
312 if (!xattr)
313 return;
314
315 list_for_each_xattr(ent, xattr) {
316 char *name = strndup(ent->e_name, ent->e_name_len);
317 void *value = ent->e_name + ent->e_name_len;
318
319 if (!name)
320 continue;
321
322 switch (ent->e_name_index) {
323 case F2FS_XATTR_INDEX_USER:
324 ret = snprintf(xattr_name, F2FS_NAME_LEN, "%s%s",
325 XATTR_USER_PREFIX, name);
326 break;
327
328 case F2FS_XATTR_INDEX_SECURITY:
329 ret = snprintf(xattr_name, F2FS_NAME_LEN, "%s%s",
330 XATTR_SECURITY_PREFIX, name);
331 break;
332 case F2FS_XATTR_INDEX_TRUSTED:
333 ret = snprintf(xattr_name, F2FS_NAME_LEN, "%s%s",
334 XATTR_TRUSTED_PREFIX, name);
335 break;
336 default:
337 MSG(0, "Unknown xattr index 0x%x\n", ent->e_name_index);
338 free(name);
339 continue;
340 }
341 if (ret >= F2FS_NAME_LEN) {
342 MSG(0, "XATTR index 0x%x name too long\n", ent->e_name_index);
343 free(name);
344 continue;
345 }
346
347 DBG(1, "fd %d xattr_name %s\n", c.dump_fd, xattr_name);
348 #if defined(__linux__)
349 ret = fsetxattr(c.dump_fd, xattr_name, value,
350 le16_to_cpu(ent->e_value_size), 0);
351 #elif defined(__APPLE__)
352 ret = fsetxattr(c.dump_fd, xattr_name, value,
353 le16_to_cpu(ent->e_value_size), 0,
354 XATTR_CREATE);
355 #endif
356 if (ret)
357 MSG(0, "XATTR index 0x%x set xattr failed error %d\n",
358 ent->e_name_index, errno);
359
360 free(name);
361 }
362
363 free(xattr);
364 }
365 #else
dump_xattr(struct f2fs_sb_info * UNUSED (sbi),struct f2fs_node * UNUSED (node_blk))366 static void dump_xattr(struct f2fs_sb_info *UNUSED(sbi),
367 struct f2fs_node *UNUSED(node_blk))
368 {
369 MSG(0, "XATTR does not support\n");
370 }
371 #endif
372
dump_inode_blk(struct f2fs_sb_info * sbi,u32 nid,struct f2fs_node * node_blk)373 static void dump_inode_blk(struct f2fs_sb_info *sbi, u32 nid,
374 struct f2fs_node *node_blk)
375 {
376 u32 i = 0;
377 u64 ofs = 0;
378
379 if((node_blk->i.i_inline & F2FS_INLINE_DATA)) {
380 DBG(3, "ino[0x%x] has inline data!\n", nid);
381 /* recover from inline data */
382 dev_write_dump(((unsigned char *)node_blk) + INLINE_DATA_OFFSET,
383 0, MAX_INLINE_DATA(node_blk));
384 return;
385 }
386
387 /* check data blocks in inode */
388 for (i = 0; i < ADDRS_PER_INODE(&node_blk->i); i++, ofs++)
389 dump_data_blk(sbi, ofs * F2FS_BLKSIZE, le32_to_cpu(
390 node_blk->i.i_addr[get_extra_isize(node_blk) + i]));
391
392 /* check node blocks in inode */
393 for (i = 0; i < 5; i++) {
394 if (i == 0 || i == 1)
395 dump_node_blk(sbi, TYPE_DIRECT_NODE,
396 le32_to_cpu(node_blk->i.i_nid[i]), &ofs);
397 else if (i == 2 || i == 3)
398 dump_node_blk(sbi, TYPE_INDIRECT_NODE,
399 le32_to_cpu(node_blk->i.i_nid[i]), &ofs);
400 else if (i == 4)
401 dump_node_blk(sbi, TYPE_DOUBLE_INDIRECT_NODE,
402 le32_to_cpu(node_blk->i.i_nid[i]), &ofs);
403 else
404 ASSERT(0);
405 }
406
407 dump_xattr(sbi, node_blk);
408 }
409
dump_file(struct f2fs_sb_info * sbi,struct node_info * ni,struct f2fs_node * node_blk,int force)410 static void dump_file(struct f2fs_sb_info *sbi, struct node_info *ni,
411 struct f2fs_node *node_blk, int force)
412 {
413 struct f2fs_inode *inode = &node_blk->i;
414 u32 imode = le16_to_cpu(inode->i_mode);
415 u32 namelen = le32_to_cpu(inode->i_namelen);
416 char name[F2FS_NAME_LEN + 1] = {0};
417 char path[1024] = {0};
418 char ans[255] = {0};
419 int is_encrypted = file_is_encrypt(inode);
420 int ret;
421
422 if (is_encrypted) {
423 MSG(force, "File is encrypted\n");
424 return;
425 }
426
427 if ((!S_ISREG(imode) && !S_ISLNK(imode)) ||
428 namelen == 0 || namelen > F2FS_NAME_LEN) {
429 MSG(force, "Not a regular file or wrong name info\n\n");
430 return;
431 }
432 if (force)
433 goto dump;
434
435 printf("Do you want to dump this file into ./lost_found/? [Y/N] ");
436 ret = scanf("%s", ans);
437 ASSERT(ret >= 0);
438
439 if (!strcasecmp(ans, "y")) {
440 dump:
441 ret = system("mkdir -p ./lost_found");
442 ASSERT(ret >= 0);
443
444 /* make a file */
445 strncpy(name, (const char *)inode->i_name, namelen);
446 name[namelen] = 0;
447 sprintf(path, "./lost_found/%s", name);
448
449 c.dump_fd = open(path, O_TRUNC|O_CREAT|O_RDWR, 0666);
450 ASSERT(c.dump_fd >= 0);
451
452 /* dump file's data */
453 dump_inode_blk(sbi, ni->ino, node_blk);
454
455 /* adjust file size */
456 ret = ftruncate(c.dump_fd, le32_to_cpu(inode->i_size));
457 ASSERT(ret >= 0);
458
459 close(c.dump_fd);
460 }
461 }
462
is_sit_bitmap_set(struct f2fs_sb_info * sbi,u32 blk_addr)463 static bool is_sit_bitmap_set(struct f2fs_sb_info *sbi, u32 blk_addr)
464 {
465 struct seg_entry *se;
466 u32 offset;
467
468 se = get_seg_entry(sbi, GET_SEGNO(sbi, blk_addr));
469 offset = OFFSET_IN_SEG(sbi, blk_addr);
470
471 return f2fs_test_bit(offset,
472 (const char *)se->cur_valid_map) != 0;
473 }
474
dump_node(struct f2fs_sb_info * sbi,nid_t nid,int force)475 void dump_node(struct f2fs_sb_info *sbi, nid_t nid, int force)
476 {
477 struct node_info ni;
478 struct f2fs_node *node_blk;
479
480 get_node_info(sbi, nid, &ni);
481
482 node_blk = calloc(BLOCK_SZ, 1);
483 ASSERT(node_blk);
484
485 DBG(1, "Node ID [0x%x]\n", nid);
486 DBG(1, "nat_entry.block_addr [0x%x]\n", ni.blk_addr);
487 DBG(1, "nat_entry.version [0x%x]\n", ni.version);
488 DBG(1, "nat_entry.ino [0x%x]\n", ni.ino);
489
490 if (!IS_VALID_BLK_ADDR(sbi, ni.blk_addr)) {
491 MSG(force, "Invalid node blkaddr: %u\n\n", ni.blk_addr);
492 goto out;
493 }
494
495 dev_read_block(node_blk, ni.blk_addr);
496
497 if (ni.blk_addr == 0x0)
498 MSG(force, "Invalid nat entry\n\n");
499 else if (!is_sit_bitmap_set(sbi, ni.blk_addr))
500 MSG(force, "Invalid sit bitmap, %u\n\n", ni.blk_addr);
501
502 DBG(1, "node_blk.footer.ino [0x%x]\n", le32_to_cpu(node_blk->footer.ino));
503 DBG(1, "node_blk.footer.nid [0x%x]\n", le32_to_cpu(node_blk->footer.nid));
504
505 if (le32_to_cpu(node_blk->footer.ino) == ni.ino &&
506 le32_to_cpu(node_blk->footer.nid) == ni.nid) {
507 print_node_info(sbi, node_blk, force);
508
509 if (ni.ino == ni.nid)
510 dump_file(sbi, &ni, node_blk, force);
511 } else {
512 print_node_info(sbi, node_blk, force);
513 MSG(force, "Invalid (i)node block\n\n");
514 }
515 out:
516 free(node_blk);
517 }
518
dump_node_from_blkaddr(struct f2fs_sb_info * sbi,u32 blk_addr)519 static void dump_node_from_blkaddr(struct f2fs_sb_info *sbi, u32 blk_addr)
520 {
521 struct f2fs_node *node_blk;
522 int ret;
523
524 node_blk = calloc(BLOCK_SZ, 1);
525 ASSERT(node_blk);
526
527 ret = dev_read_block(node_blk, blk_addr);
528 ASSERT(ret >= 0);
529
530 if (c.dbg_lv > 0)
531 print_node_info(sbi, node_blk, 0);
532 else
533 print_inode_info(sbi, node_blk, 1);
534
535 free(node_blk);
536 }
537
start_bidx_of_node(unsigned int node_ofs,struct f2fs_node * node_blk)538 unsigned int start_bidx_of_node(unsigned int node_ofs,
539 struct f2fs_node *node_blk)
540 {
541 unsigned int indirect_blks = 2 * NIDS_PER_BLOCK + 4;
542 unsigned int bidx;
543
544 if (node_ofs == 0)
545 return 0;
546
547 if (node_ofs <= 2) {
548 bidx = node_ofs - 1;
549 } else if (node_ofs <= indirect_blks) {
550 int dec = (node_ofs - 4) / (NIDS_PER_BLOCK + 1);
551 bidx = node_ofs - 2 - dec;
552 } else {
553 int dec = (node_ofs - indirect_blks - 3) / (NIDS_PER_BLOCK + 1);
554 bidx = node_ofs - 5 - dec;
555 }
556 return bidx * ADDRS_PER_BLOCK(&node_blk->i) +
557 ADDRS_PER_INODE(&node_blk->i);
558 }
559
dump_data_offset(u32 blk_addr,int ofs_in_node)560 static void dump_data_offset(u32 blk_addr, int ofs_in_node)
561 {
562 struct f2fs_node *node_blk;
563 unsigned int bidx;
564 unsigned int node_ofs;
565 int ret;
566
567 node_blk = calloc(BLOCK_SZ, 1);
568 ASSERT(node_blk);
569
570 ret = dev_read_block(node_blk, blk_addr);
571 ASSERT(ret >= 0);
572
573 node_ofs = ofs_of_node(node_blk);
574
575 bidx = start_bidx_of_node(node_ofs, node_blk);
576 bidx += ofs_in_node;
577
578 setlocale(LC_ALL, "");
579 MSG(0, " - Data offset : 0x%x (4KB), %'u (bytes)\n",
580 bidx, bidx * 4096);
581 free(node_blk);
582 }
583
dump_node_offset(u32 blk_addr)584 static void dump_node_offset(u32 blk_addr)
585 {
586 struct f2fs_node *node_blk;
587 int ret;
588
589 node_blk = calloc(BLOCK_SZ, 1);
590 ASSERT(node_blk);
591
592 ret = dev_read_block(node_blk, blk_addr);
593 ASSERT(ret >= 0);
594
595 MSG(0, " - Node offset : 0x%x\n", ofs_of_node(node_blk));
596 free(node_blk);
597 }
598
has_dirent(u32 blk_addr,int is_inline,int * enc_name)599 static int has_dirent(u32 blk_addr, int is_inline, int *enc_name)
600 {
601 struct f2fs_node *node_blk;
602 int ret, is_dentry = 0;
603
604 node_blk = calloc(BLOCK_SZ, 1);
605 ASSERT(node_blk);
606
607 ret = dev_read_block(node_blk, blk_addr);
608 ASSERT(ret >= 0);
609
610 if (IS_INODE(node_blk) && S_ISDIR(le16_to_cpu(node_blk->i.i_mode)))
611 is_dentry = 1;
612
613 if (is_inline && !(node_blk->i.i_inline & F2FS_INLINE_DENTRY))
614 is_dentry = 0;
615
616 *enc_name = file_is_encrypt(&node_blk->i);
617
618 free(node_blk);
619
620 return is_dentry;
621 }
622
dump_dirent(u32 blk_addr,int is_inline,int enc_name)623 static void dump_dirent(u32 blk_addr, int is_inline, int enc_name)
624 {
625 struct f2fs_dentry_ptr d;
626 void *inline_dentry, *blk;
627 int ret, i = 0;
628
629 blk = calloc(BLOCK_SZ, 1);
630 ASSERT(blk);
631
632 ret = dev_read_block(blk, blk_addr);
633 ASSERT(ret >= 0);
634
635 if (is_inline) {
636 inline_dentry = inline_data_addr((struct f2fs_node *)blk);
637 make_dentry_ptr(&d, blk, inline_dentry, 2);
638 } else {
639 make_dentry_ptr(&d, NULL, blk, 1);
640 }
641
642 DBG(1, "%sDentry block:\n", is_inline ? "Inline " : "");
643
644 while (i < d.max) {
645 struct f2fs_dir_entry *de;
646 char en[F2FS_PRINT_NAMELEN];
647 u16 name_len;
648 int enc;
649
650 if (!test_bit_le(i, d.bitmap)) {
651 i++;
652 continue;
653 }
654
655 de = &d.dentry[i];
656
657 if (!de->name_len) {
658 i++;
659 continue;
660 }
661
662 name_len = le16_to_cpu(de->name_len);
663 enc = enc_name;
664
665 if (de->file_type == F2FS_FT_DIR) {
666 if ((d.filename[i][0] == '.' && name_len == 1) ||
667 (d.filename[i][0] == '.' &&
668 d.filename[i][1] == '.' && name_len == 2)) {
669 enc = 0;
670 }
671 }
672
673 pretty_print_filename(d.filename[i], name_len, en, enc);
674
675 DBG(1, "bitmap pos[0x%x] name[%s] len[0x%x] hash[0x%x] ino[0x%x] type[0x%x]\n",
676 i, en,
677 name_len,
678 le32_to_cpu(de->hash_code),
679 le32_to_cpu(de->ino),
680 de->file_type);
681
682 i += GET_DENTRY_SLOTS(name_len);
683 }
684
685 free(blk);
686 }
687
dump_info_from_blkaddr(struct f2fs_sb_info * sbi,u32 blk_addr)688 int dump_info_from_blkaddr(struct f2fs_sb_info *sbi, u32 blk_addr)
689 {
690 nid_t nid;
691 int type;
692 struct f2fs_summary sum_entry;
693 struct node_info ni, ino_ni;
694 int enc_name;
695 int ret = 0;
696
697 MSG(0, "\n== Dump data from block address ==\n\n");
698
699 if (blk_addr < SM_I(sbi)->seg0_blkaddr) {
700 MSG(0, "\nFS Reserved Area for SEG #0: ");
701 ret = -EINVAL;
702 } else if (blk_addr < SIT_I(sbi)->sit_base_addr) {
703 MSG(0, "\nFS Metadata Area: ");
704 ret = -EINVAL;
705 } else if (blk_addr < NM_I(sbi)->nat_blkaddr) {
706 MSG(0, "\nFS SIT Area: ");
707 ret = -EINVAL;
708 } else if (blk_addr < SM_I(sbi)->ssa_blkaddr) {
709 MSG(0, "\nFS NAT Area: ");
710 ret = -EINVAL;
711 } else if (blk_addr < SM_I(sbi)->main_blkaddr) {
712 MSG(0, "\nFS SSA Area: ");
713 ret = -EINVAL;
714 } else if (blk_addr > __end_block_addr(sbi)) {
715 MSG(0, "\nOut of address space: ");
716 ret = -EINVAL;
717 }
718
719 if (ret) {
720 MSG(0, "User data is from 0x%x to 0x%x\n\n",
721 SM_I(sbi)->main_blkaddr,
722 __end_block_addr(sbi));
723 return ret;
724 }
725
726 if (!is_sit_bitmap_set(sbi, blk_addr))
727 MSG(0, "\nblkaddr is not valid\n");
728
729 type = get_sum_entry(sbi, blk_addr, &sum_entry);
730 nid = le32_to_cpu(sum_entry.nid);
731
732 get_node_info(sbi, nid, &ni);
733
734 DBG(1, "Note: blkaddr = main_blkaddr + segno * 512 + offset\n");
735 DBG(1, "Block_addr [0x%x]\n", blk_addr);
736 DBG(1, " - Segno [0x%x]\n", GET_SEGNO(sbi, blk_addr));
737 DBG(1, " - Offset [0x%x]\n", OFFSET_IN_SEG(sbi, blk_addr));
738 DBG(1, "SUM.nid [0x%x]\n", nid);
739 DBG(1, "SUM.type [%s]\n", type >= 0 ?
740 seg_type_name[type] :
741 "Broken");
742 DBG(1, "SUM.version [%d]\n", sum_entry.version);
743 DBG(1, "SUM.ofs_in_node [0x%x]\n", sum_entry.ofs_in_node);
744 DBG(1, "NAT.blkaddr [0x%x]\n", ni.blk_addr);
745 DBG(1, "NAT.ino [0x%x]\n", ni.ino);
746
747 get_node_info(sbi, ni.ino, &ino_ni);
748
749 /* inode block address */
750 if (ni.blk_addr == NULL_ADDR || ino_ni.blk_addr == NULL_ADDR) {
751 MSG(0, "FS Userdata Area: Obsolete block from 0x%x\n",
752 blk_addr);
753 return -EINVAL;
754 }
755
756 /* print inode */
757 if (c.dbg_lv > 0)
758 dump_node_from_blkaddr(sbi, ino_ni.blk_addr);
759
760 if (type == SEG_TYPE_CUR_DATA || type == SEG_TYPE_DATA) {
761 MSG(0, "FS Userdata Area: Data block from 0x%x\n", blk_addr);
762 MSG(0, " - Direct node block : id = 0x%x from 0x%x\n",
763 nid, ni.blk_addr);
764 MSG(0, " - Inode block : id = 0x%x from 0x%x\n",
765 ni.ino, ino_ni.blk_addr);
766 dump_node_from_blkaddr(sbi, ino_ni.blk_addr);
767 dump_data_offset(ni.blk_addr,
768 le16_to_cpu(sum_entry.ofs_in_node));
769
770 if (has_dirent(ino_ni.blk_addr, 0, &enc_name))
771 dump_dirent(blk_addr, 0, enc_name);
772 } else {
773 MSG(0, "FS Userdata Area: Node block from 0x%x\n", blk_addr);
774 if (ni.ino == ni.nid) {
775 MSG(0, " - Inode block : id = 0x%x from 0x%x\n",
776 ni.ino, ino_ni.blk_addr);
777 dump_node_from_blkaddr(sbi, ino_ni.blk_addr);
778
779 if (has_dirent(ino_ni.blk_addr, 1, &enc_name))
780 dump_dirent(blk_addr, 1, enc_name);
781 } else {
782 MSG(0, " - Node block : id = 0x%x from 0x%x\n",
783 nid, ni.blk_addr);
784 MSG(0, " - Inode block : id = 0x%x from 0x%x\n",
785 ni.ino, ino_ni.blk_addr);
786 dump_node_from_blkaddr(sbi, ino_ni.blk_addr);
787 dump_node_offset(ni.blk_addr);
788 }
789 }
790
791 return 0;
792 }
793