I have some magic file changes for ext4; I'll run them past the ext4 list and attach a diff here. Can you send changes upstream or should I? Thanks, -Eric
I can send the patch upstream.
Ok, here's a new magic section for ext2/3/4, to replace what's there. ( I can attach a real patch if you prefer...) It didn't get any NAKs on the ext4 list, but maybe it'd be worth letting it sit in rawhide for just a bit before upstream submission? I put a few commented-out features in, to make it easy to display those things in the future if desired. Thanks, -Eric # ext2/ext3 filesystems - Andreas Dilger <adilger> # ext4 filesystem - Eric Sandeen <sandeen> 0x438 leshort 0xEF53 Linux >0x44c lelong x rev %d >0x43e leshort x \b.%d # No journal? ext2 >0x45c lelong ^0x0000004 ext2 filesystem data >>0x43a leshort ^0x0000001 (mounted or unclean) # Has a journal? ext3 or ext4 >0x45c lelong &0x0000004 # and small INCOMPAT? >>0x460 lelong <0x0000040 # and small RO_COMPAT? >>>0x464 lelong <0x0000008 ext3 filesystem data # else large RO_COMPAT? >>>0x464 lelong >0x0000007 ext4 filesystem data # else large INCOMPAT? >>0x460 lelong >0x000003f ext4 filesystem data # General flags for any ext* fs >0x460 lelong &0x0000004 (needs journal recovery) >0x43a leshort &0x0000002 (errors) # INCOMPAT flags >0x460 lelong &0x0000001 (compressed) #>0x460 lelong &0x0000002 (filetype) #>0x460 lelong &0x0000010 (meta bg) >0x460 lelong &0x0000040 (extents) >0x460 lelong &0x0000080 (64bit) #>0x460 lelong &0x0000100 (mmp) #>0x460 lelong &0x0000200 (flex bg) # RO_INCOMPAT flags #>0x464 lelong &0x0000001 (sparse super) >0x464 lelong &0x0000002 (large files) >0x464 lelong &0x0000008 (huge files) #>0x464 lelong &0x0000010 (gdt checksum) #>0x464 lelong &0x0000020 (many subdirs) #>0x463 lelong &0x0000040 (extra isize)
Thanks. I'll put it in the rawhide.