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ext: get volume info

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git-svn-id: svn://kolibrios.org@6871 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
pathoswithin 2017-03-01 16:45:33 +00:00
parent 19552bad79
commit 5e7dc6b25c
1 changed files with 50 additions and 13 deletions
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63
kernel/trunk/fs/ext.inc
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@ -104,6 +104,8 @@ thisBlockGroup dw ?
compatibleFlags dd ?
incompatibleFlags dd ?
RO_compatibleFlags dd ?
UUID rb 16
volumeLabel rb 16
ends
; ext4 extent tree
@ -2059,21 +2061,12 @@ ext_ReadFile:
;----------------------------------------------------------------
ext_GetFileInfo:
call ext_lock
cmp byte [esi], 0
jz .is_root
jz .volume
call ext_lock
call findInode
jc .ret
lea esi, [ebp+EXTFS.inodeBuffer]
jnc @f
push eax
call ext_unlock
pop eax
ret
.is_root:
mov edi, esi
lea esi, [ebp+EXTFS.rootInodeBuffer]
@@:
mov edx, [ebx+16]
mov bl, [edi]
xor eax, eax
@ -2105,8 +2098,52 @@ ext_GetFileInfo:
mov eax, [esi+INODE.dataModified]
sub eax, 978307200
call fsTime2bdfe
call ext_unlock
xor eax, eax
.ret:
push eax
call ext_unlock
pop eax
ret
.volume:
mov eax, dword[ebp+EXTFS.Length]
mov edx, dword[ebp+EXTFS.Length+4]
mov edi, [ebx+16]
shld edx, eax, 9
shl eax, 9
mov [edi+36], edx
mov [edi+32], eax
mov eax, [ebx+8]
mov byte [edi], 8
mov [edi+4], eax
lea esi, [ebp+EXTFS.superblock.volumeLabel]
mov ecx, 16
add edi, 40
cmp eax, 3
jz .utf8
add ecx, esi
cmp eax, 2
jz .utf16
@@:
call utf8to16
call uni2ansi_char
stosb
cmp esi, ecx
jc @b
jmp @f
.utf8:
rep movsb
jmp @f
.utf16:
call utf8to16
stosw
cmp esi, ecx
jc .utf16
@@:
xor eax, eax
mov [edi], ax
ret
;----------------------------------------------------------------