Commit Graph

10 Commits

Author SHA1 Message Date
Kirk McKusick
68d7185b64 The fsdb(8) utility uses the fsck_ffs(8) disk I/O interfaces, so
switch from using libufs's bread() to using fsck_ffs's getdatablk()
when importing tools/diag/prtblnos's prtblknos().

Sponsored by: Netflix
2020-09-19 20:06:12 +00:00
Kirk McKusick
9fc5d538fc In preparation for adding inode check-hashes, clean up and
document the libufs interface for fetching and storing inodes.
The undocumented getino / putino interface has been replaced
with a new getinode / putinode interface.

Convert the utilities that had been using the undocumented
interface to use the new documented interface.

No functional change (as for now the libufs library does not
do inode check-hashes).

Reviewed by:  kib
Tested by:    Peter Holm
Sponsored by: Netflix
2018-11-13 21:40:56 +00:00
Kirk McKusick
28ac223823 Fix incorrect output when printing block lists for files small enough
to fit in only direct blocks whose size is exactly a multiple of the
filesystem block size.

Reported by:  Peter Holm
Tested by:    Peter Holm
Sponsored by: Netflix
2018-08-20 20:44:11 +00:00
Kirk McKusick
d3009da8ad Fix incorrect output for a file consisting of a single full-size
block followed by a discontiguous fragment.

Add checks for unallocated inodes and inodes with unknown mode
types.

Cleanup variable declarations by changing from type `int' to types
like ufs_lbn_t, ufs2_daddr_t, etc.

Reported by: bde
2018-04-19 22:43:55 +00:00
Kirk McKusick
c343fa81a8 In addition to the existing argument format:
prtblknos filesystem_device inode ...

add an additional argument format:

	prtblknos file

which is more convenient than figuring out the filesystem
and inode number for "file".

When given a list of multiple inodes, rather than exiting
the program on an error with one of them, skip over it and
continue with the next one.

Submitted by: bde
2018-04-18 23:08:10 +00:00
Kirk McKusick
15e4030e9e Check the inode type and only attempt to print block lists for
regular files, directories, and symbolic links that require
external storage.

Correct the handling of files with holes and files that have
one or more large blocks and end with a fragment.

Reported by: bde
2018-04-18 22:24:44 +00:00
Kirk McKusick
f33fbc18f5 Add (intmax_t) type casts to some printf parameters to keep i386 happy. 2018-04-08 07:18:29 +00:00
Kirk McKusick
0e3f58b661 Split tools/diag/prtblknos into two parts:
main.c - opens disk and processes the argument list
		 of inodes to be printed
	prtblknos.c - prints out the list of blocks used by an inode

This change allows the fsdb program to import prtblknos() to use when
printing out the set of blocks used by an inode.

This program was switched to using the libufs library to ease its
integration with fsdb and any other filesystem utility that might
want to use it in the future.
2018-04-08 06:52:58 +00:00
Kirk McKusick
c97f1d3f37 Add an explanation of the block size units output by prtblknos.
Suggested by: Ravi Pokala (rpokala@)
2018-02-09 22:23:10 +00:00
Kirk McKusick
16c0c8eeec This is a little C-program that can be used to print out the list
of blocks used by a requested list of inodes.

For example, to list the blocks referenced by your kernel:

guest_12 % df /
Filesystem      1K-blocks     Used   Avail Capacity  Mounted on
/dev/gpt/rootfs  20307196 10707336 7975288    57%    /

guest_12 % ls -i /boot/kernel/kernel
160603 /boot/kernel/kernel

guest_12 % ./prtblknos /dev/gpt/rootfs 160603
160603:	lbn 0-7 blkno 3217584-3217647
	lbn 8-11 blkno 3217864-3217895 distance 216
First-level indirect, blkno 3217896-3217903 distance 0
	lbn 12-19 blkno 3217904-3217967 distance 8
	lbn 20-75 blkno 3251816-3252263 distance 33848
	lbn 76-83 blkno 3252368-3252431 distance 104
	lbn 84-91 blkno 3252464-3252527 distance 32
	lbn 92-852 blkno 3252896-3258983 distance 368

Each contiguous range of blocks is printed on a line.
The distance metric is the size of the gap from the end of the
previous set of blocks to the beginning of the next set of blocks.
Short distances are desirable.
2018-02-09 19:10:46 +00:00