1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
/*
* Copyright (c) 2008 The tyndur Project. All rights reserved.
*
* This code is derived from software contributed to the tyndur Project
* by Antoine Kaufmann.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the tyndur Project
* and its contributors.
* 4. Neither the name of the tyndur Project nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "ext2_cdi.h"
#include <string.h>
#include <stdio.h>
static int dev_read(uint64_t start, size_t size, void* data, void* prv)
{
struct cdi_fs_filesystem* fs = (struct cdi_fs_filesystem*) prv;
return cdi_fs_data_read(fs, start, size, data) == size;
}
static int dev_write(uint64_t start, size_t size, const void* data, void* prv)
{
struct cdi_fs_filesystem* fs = (struct cdi_fs_filesystem*) prv;
return cdi_fs_data_write(fs, start, size, data);
}
int ext2_fs_init(struct cdi_fs_filesystem* cdi_fs)
{
struct ext2_fs_res* root_res;
ext2_fs_t* fs = malloc(sizeof(*fs));
cdi_fs->opaque = fs;
fs->opaque = cdi_fs;
fs->dev_read = dev_read;
fs->dev_write = dev_write;
fs->dev_private = cdi_fs;
fs->cache_create = cache_create;
fs->cache_destroy = cache_destroy;
fs->cache_sync = cache_sync;
fs->cache_block = cache_block;
fs->cache_block_dirty = cache_block_dirty;
fs->cache_block_free = cache_block_free;
if (!ext2_fs_mount(fs)) {
free(fs);
// XXX Ist das die richtige Fehlernummer?
cdi_fs->error = CDI_FS_ERROR_ONS;
return 0;
}
root_res = malloc(sizeof(*root_res));
memset(root_res, 0, sizeof(*root_res));
root_res->inode_num = EXT2_ROOTDIR_INODE;
root_res->res.name = strdup("/");
root_res->res.res = &ext2_fs_res;
root_res->res.dir = &ext2_fs_dir;
cdi_fs->root_res = (struct cdi_fs_res*) root_res;
puts("mounted");
return 1;
}
int ext2_fs_destroy(struct cdi_fs_filesystem* fs)
{
ext2_fs_sync(fs->opaque);
return ext2_fs_unmount(fs->opaque);
}