emo/busybox
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

support for mount by label (not yet tested)

Browse Source 
Also adds findfs applet. Closes bug 1143.
This commit is contained in:
Denis Vlasenko
2008-02-18 21:08:49 +00:00
parent 27dd495b98
commit de7684a309
43 changed files with 4632 additions and 20 deletions
Download Patch File Download Diff File Expand all files Collapse all files

59
util-linux/volume_id/jfs.c Normal file
View File

@@ -0,0 +1,59 @@
/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "volume_id_internal.h"
struct jfs_super_block {
uint8_t magic[4];
uint32_t version;
uint64_t size;
uint32_t bsize;
uint32_t dummy1;
uint32_t pbsize;
uint32_t dummy2[27];
uint8_t uuid[16];
uint8_t label[16];
uint8_t loguuid[16];
} __attribute__((__packed__));
#define JFS_SUPERBLOCK_OFFSET 0x8000
int volume_id_probe_jfs(struct volume_id *id, uint64_t off)
{
struct jfs_super_block *js;
dbg("probing at offset 0x%llx", (unsigned long long) off);
js = volume_id_get_buffer(id, off + JFS_SUPERBLOCK_OFFSET, 0x200);
if (js == NULL)
return -1;
if (memcmp(js->magic, "JFS1", 4) != 0)
return -1;
volume_id_set_label_raw(id, js->label, 16);
volume_id_set_label_string(id, js->label, 16);
volume_id_set_uuid(id, js->uuid, UUID_DCE);
volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
id->type = "jfs";
return 0;
}