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Differential D13784 Diff 40122 stand/i386/libi386/biosdisk.c

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stand/i386/libi386/biosdisk.c

Show First 20 Lines • Show All 397 Lines • ▼ Show 20 Linesbd_open(struct open_file *f, ...)
/* /*
* Read disk size from partition. * Read disk size from partition.
* This is needed to work around buggy BIOS systems returning * This is needed to work around buggy BIOS systems returning
* wrong (truncated) disk media size. * wrong (truncated) disk media size.
* During bd_probe() we tested if the mulitplication of bd_sectors * During bd_probe() we tested if the mulitplication of bd_sectors
* would overflow so it should be safe to perform here. * would overflow so it should be safe to perform here.
*/ */
disk.d_dev = dev->d_dev; disk.d_dev = dev->d_dev;
disk.d_type = dev->d_type;
disk.d_unit = dev->d_unit; disk.d_unit = dev->d_unit;
disk.d_opendata = NULL; disk.d_opendata = NULL;
disk.d_slice = -1; disk.d_slice = -1;
disk.d_partition = -1; disk.d_partition = -1;
disk.d_offset = 0; disk.d_offset = 0;
if (disk_open(&disk, BD(dev).bd_sectors * BD(dev).bd_sectorsize, if (disk_open(&disk, BD(dev).bd_sectors * BD(dev).bd_sectorsize,
BD(dev).bd_sectorsize) == 0) { BD(dev).bd_sectorsize) == 0) {
Show All 21 Lines#ifdef LOADER_GELI_SUPPORT
struct dsk dskp; struct dsk dskp;
struct ptable *table = NULL; struct ptable *table = NULL;
struct ptable_entry part; struct ptable_entry part;
struct pentry *entry; struct pentry *entry;
int geli_part = 0; int geli_part = 0;
dskp.drive = bd_unit2bios(dev->d_unit); dskp.drive = bd_unit2bios(dev->d_unit);
dskp.type = dev->d_type; dskp.type = dev->d_dev->dv_type;
dskp.unit = dev->d_unit; dskp.unit = dev->d_unit;
dskp.slice = dev->d_slice; dskp.slice = dev->d_slice;
dskp.part = dev->d_partition; dskp.part = dev->d_partition;
dskp.start = dev->d_offset; dskp.start = dev->d_offset;
memcpy(&rdev, dev, sizeof(rdev)); memcpy(&rdev, dev, sizeof(rdev));
/* to read the GPT table, we need to read the first sector */ /* to read the GPT table, we need to read the first sector */
rdev.d_offset = 0; rdev.d_offset = 0;
▲ Show 20 Lines • Show All 414 Lines • ▼ Show 20 Lines if (diff == 0) {
} }
} }
err = bd_io(dev, alignlba, alignblks, tmpbuf, 0); err = bd_io(dev, alignlba, alignblks, tmpbuf, 0);
if (err) if (err)
return (err); return (err);
dskp.drive = bd_unit2bios(dev->d_unit); dskp.drive = bd_unit2bios(dev->d_unit);
dskp.type = dev->d_type; dskp.type = dev->d_dev->dv_type;
dskp.unit = dev->d_unit; dskp.unit = dev->d_unit;
dskp.slice = dev->d_slice; dskp.slice = dev->d_slice;
dskp.part = dev->d_partition; dskp.part = dev->d_partition;
dskp.start = dev->d_offset; dskp.start = dev->d_offset;
/* GELI needs the offset relative to the partition start */ /* GELI needs the offset relative to the partition start */
p_off = alignlba - dskp.start; p_off = alignlba - dskp.start;
▲ Show 20 Lines • Show All 108 Lines • ▼ Show 20 Lines
#ifdef LOADER_GELI_SUPPORT #ifdef LOADER_GELI_SUPPORT
int int
bios_read(void *vdev __unused, void *xpriv, off_t off, void *buf, size_t bytes) bios_read(void *vdev __unused, void *xpriv, off_t off, void *buf, size_t bytes)
{ {
struct disk_devdesc dev; struct disk_devdesc dev;
struct dsk *priv = xpriv; struct dsk *priv = xpriv;
dev.d_dev = &biosdisk; dev.d_dev = &biosdisk;
dev.d_type = priv->type;
dev.d_unit = priv->unit; dev.d_unit = priv->unit;
dev.d_slice = priv->slice; dev.d_slice = priv->slice;
dev.d_partition = priv->part; dev.d_partition = priv->part;
dev.d_offset = priv->start; dev.d_offset = priv->start;
off = off / BD(&dev).bd_sectorsize; off = off / BD(&dev).bd_sectorsize;
/* GELI gives us the offset relative to the partition start */ /* GELI gives us the offset relative to the partition start */
off += dev.d_offset; off += dev.d_offset;
bytes = bytes / BD(&dev).bd_sectorsize; bytes = bytes / BD(&dev).bd_sectorsize;
return (bd_io(&dev, off, bytes, buf, 0)); return (bd_io(&dev, off, bytes, buf, 0));
} }
#endif /* LOADER_GELI_SUPPORT */ #endif /* LOADER_GELI_SUPPORT */