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/*
* This code is based on the ISO filesystem support in MILO (by
* Dave Rusling).
*
* This is a set of functions that provides minimal filesystem
* functionality to the Linux bootstrapper. All we can do is
* open and read files... but that's all we need 8-)
*/
#include <stddef.h>
#include <cons.h>
#include <bootfs.h>
#include <isolib.h>
#ifdef DEBUG_ISO
#include <utils.h>
#endif
extern const struct bootfs isofs;
static long cd_device = -1;
long
iso_dev_read (void * buf, long offset, long size)
{
return cons_read(cd_device, buf, size, offset);
}
static int
iso_mount (long cons_dev, long p_offset, long quiet)
{
#ifdef DEBUG_ISO
printf("iso_mount() called\n");
#endif
cd_device = cons_dev;
/*
* Read the super block (this determines the file system type
* and other important information)
*/
return iso_read_super(NULL, quiet);
}
static const char *
iso_readdir(int fd, int rewind)
{
return iso_readdir_i(fd,rewind);
}
const struct bootfs iso = {
-1, /* isofs is not partitioned */
1024, /* block size */
iso_mount,
iso_open,
iso_bread,
iso_close,
iso_readdir,
iso_fstat
};
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