71 lines
1.7 KiB
C
71 lines
1.7 KiB
C
/* radare - LGPL - Copyright 2011-2017 pancake<nopcode.org> */
|
|
|
|
#include <r_io.h>
|
|
#include <r_fs.h>
|
|
#include "grubfs.h"
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
|
|
static RIOBind *bio = NULL;
|
|
static ut64 delta = 0;
|
|
|
|
static void* empty (int sz) {
|
|
void *p = malloc (sz);
|
|
if (p) memset (p, '\0', sz);
|
|
return p;
|
|
}
|
|
|
|
static grub_err_t read_foo (struct grub_disk *disk, grub_disk_addr_t sector, grub_size_t size, char *buf) {
|
|
if (!disk) {
|
|
eprintf ("oops. no disk\n");
|
|
return 1;
|
|
}
|
|
const int blocksize = 512; // TODO unhardcode 512
|
|
RIOBind *iob = disk->data;
|
|
if (bio) {
|
|
iob = bio;
|
|
}
|
|
//printf ("io %p\n", file->root->iob.io);
|
|
return !iob->read_at (iob->io, delta+(blocksize*sector), (ut8*)buf, size*blocksize);
|
|
}
|
|
|
|
GrubFS *grubfs_new (struct grub_fs *myfs, void *data) {
|
|
struct grub_file *file;
|
|
GrubFS *gfs = empty (sizeof (GrubFS));
|
|
// hacky mallocs :D
|
|
gfs->file = file = empty (sizeof (struct grub_file));
|
|
file->device = empty (sizeof (struct grub_device)+1024);
|
|
file->device->disk = empty (sizeof (struct grub_disk));
|
|
file->device->disk->dev = (grub_disk_dev_t)file->device; // hack!
|
|
file->device->disk->dev->read = read_foo; // grub_disk_dev
|
|
file->device->disk->data = data;
|
|
//file->device->disk->read_hook = read_foo; //read_hook;
|
|
file->fs = myfs;
|
|
return gfs;
|
|
}
|
|
|
|
grub_disk_t grubfs_disk (void *data) {
|
|
struct grub_disk *disk = empty (sizeof (struct grub_disk));
|
|
disk->dev = empty (sizeof (struct grub_disk_dev));
|
|
disk->dev->read = read_foo; // grub_disk_dev
|
|
disk->data = data;
|
|
return disk;
|
|
}
|
|
|
|
void grubfs_free (GrubFS *gf) {
|
|
if (gf) {
|
|
if (gf->file && gf->file->device) {
|
|
free (gf->file->device->disk);
|
|
}
|
|
//free (gf->file->device);
|
|
free (gf->file);
|
|
free (gf);
|
|
}
|
|
}
|
|
|
|
void grubfs_bind_io (RIOBind *iob, ut64 _delta) {
|
|
bio = iob;
|
|
delta = _delta;
|
|
}
|