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Differential D9757 Diff 26311 sys/boot/i386/libi386/biosdisk.c

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sys/boot/i386/libi386/biosdisk.c

Show First 20 Lines • Show All 131 Lines • ▼ Show 20 Lines
static int bd_strategy(void *devdata, int flag, daddr_t dblk, size_t size, static int bd_strategy(void *devdata, int flag, daddr_t dblk, size_t size,
char *buf, size_t *rsize); char *buf, size_t *rsize);
static int bd_realstrategy(void *devdata, int flag, daddr_t dblk, size_t size, static int bd_realstrategy(void *devdata, int flag, daddr_t dblk, size_t size,
char *buf, size_t *rsize); char *buf, size_t *rsize);
static int bd_open(struct open_file *f, ...); static int bd_open(struct open_file *f, ...);
static int bd_close(struct open_file *f); static int bd_close(struct open_file *f);
static int bd_ioctl(struct open_file *f, u_long cmd, void *data); static int bd_ioctl(struct open_file *f, u_long cmd, void *data);
static int bd_print(int verbose); static int bd_print(int verbose);
static void bd_cleanup(void);
#ifdef LOADER_GELI_SUPPORT #ifdef LOADER_GELI_SUPPORT
static enum isgeli { static enum isgeli {
ISGELI_UNKNOWN, ISGELI_UNKNOWN,
ISGELI_NO, ISGELI_NO,
ISGELI_YES ISGELI_YES
}; };
static enum isgeli geli_status[MAXBDDEV][MAXTBLENTS]; static enum isgeli geli_status[MAXBDDEV][MAXTBLENTS];
int bios_read(void *vdev __unused, struct dsk *priv, off_t off, char *buf, int bios_read(void *vdev __unused, struct dsk *priv, off_t off, char *buf,
size_t bytes); size_t bytes);
#endif /* LOADER_GELI_SUPPORT */ #endif /* LOADER_GELI_SUPPORT */
struct devsw biosdisk = { struct devsw biosdisk = {
"disk", "disk",
DEVT_DISK, DEVT_DISK,
bd_init, bd_init,
bd_strategy, bd_strategy,
bd_open, bd_open,
bd_close, bd_close,
bd_ioctl, bd_ioctl,
bd_print, bd_print,
bd_cleanup NULL
}; };
/* /*
* Translate between BIOS device numbers and our private unit numbers. * Translate between BIOS device numbers and our private unit numbers.
*/ */
int int
bd_bios2unit(int biosdev) bd_bios2unit(int biosdev)
{ {
▲ Show 20 Lines • Show All 54 Lines • ▼ Show 20 Lines#endif
if (base == 0x80) if (base == 0x80)
nfd++; nfd++;
} }
} }
bcache_add_dev(nbdinfo); bcache_add_dev(nbdinfo);
return(0); return(0);
} }
static void
bd_cleanup(void)
{
disk_cleanup(&biosdisk);
}
/* /*
* Try to detect a device supported by the legacy int13 BIOS * Try to detect a device supported by the legacy int13 BIOS
*/ */
static int static int
bd_int13probe(struct bdinfo *bd) bd_int13probe(struct bdinfo *bd)
{ {
struct edd_params params; struct edd_params params;
int ret = 1; /* assume success */ int ret = 1; /* assume success */
▲ Show 20 Lines • Show All 110 Lines • ▼ Show 20 Lines for (i = 0; i < nbdinfo; i++) {
if ((ret = pager_output(line)) != 0) if ((ret = pager_output(line)) != 0)
break; break;
dev.d_dev = &biosdisk; dev.d_dev = &biosdisk;
dev.d_unit = i; dev.d_unit = i;
dev.d_slice = -1; dev.d_slice = -1;
dev.d_partition = -1; dev.d_partition = -1;
if (disk_open(&dev, if (disk_open(&dev,
bdinfo[i].bd_sectorsize * bdinfo[i].bd_sectors, bdinfo[i].bd_sectorsize * bdinfo[i].bd_sectors,
bdinfo[i].bd_sectorsize, bdinfo[i].bd_sectorsize) == 0) {
(bdinfo[i].bd_flags & BD_FLOPPY) ?
DISK_F_NOCACHE: 0) == 0) {
snprintf(line, sizeof(line), " disk%d", i); snprintf(line, sizeof(line), " disk%d", i);
ret = disk_print(&dev, line, verbose); ret = disk_print(&dev, line, verbose);
disk_close(&dev); disk_close(&dev);
if (ret != 0) if (ret != 0)
return (ret); return (ret);
} }
} }
return (ret); return (ret);
Show All 38 Linesbd_open(struct open_file *f, ...)
disk.d_dev = dev->d_dev; disk.d_dev = dev->d_dev;
disk.d_type = dev->d_type; 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, (BD(dev).bd_flags & BD_FLOPPY) ? BD(dev).bd_sectorsize) == 0) {
DISK_F_NOCACHE: 0) == 0) {
if (disk_ioctl(&disk, DIOCGMEDIASIZE, &size) == 0) { if (disk_ioctl(&disk, DIOCGMEDIASIZE, &size) == 0) {
size /= BD(dev).bd_sectorsize; size /= BD(dev).bd_sectorsize;
if (size > BD(dev).bd_sectors) if (size > BD(dev).bd_sectors)
BD(dev).bd_sectors = size; BD(dev).bd_sectors = size;
} }
disk_close(&disk); disk_close(&disk);
} }
err = disk_open(dev, BD(dev).bd_sectors * BD(dev).bd_sectorsize, err = disk_open(dev, BD(dev).bd_sectors * BD(dev).bd_sectorsize,
BD(dev).bd_sectorsize, (BD(dev).bd_flags & BD_FLOPPY) ? BD(dev).bd_sectorsize);
DISK_F_NOCACHE: 0);
#ifdef LOADER_GELI_SUPPORT #ifdef LOADER_GELI_SUPPORT
static char gelipw[GELI_PW_MAXLEN]; static char gelipw[GELI_PW_MAXLEN];
char *passphrase; char *passphrase;
if (err) if (err)
return (err); return (err);
▲ Show 20 Lines • Show All 503 Lines • ▼ Show 20 Linesbd_getdev(struct i386_devdesc *d)
int i, unit; int i, unit;
dev = (struct disk_devdesc *)d; dev = (struct disk_devdesc *)d;
biosdev = bd_unit2bios(dev->d_unit); biosdev = bd_unit2bios(dev->d_unit);
DEBUG("unit %d BIOS device %d", dev->d_unit, biosdev); DEBUG("unit %d BIOS device %d", dev->d_unit, biosdev);
if (biosdev == -1) /* not a BIOS device */ if (biosdev == -1) /* not a BIOS device */
return(-1); return(-1);
if (disk_open(dev, BD(dev).bd_sectors * BD(dev).bd_sectorsize, if (disk_open(dev, BD(dev).bd_sectors * BD(dev).bd_sectorsize,
BD(dev).bd_sectorsize,(BD(dev).bd_flags & BD_FLOPPY) ? BD(dev).bd_sectorsize) != 0) /* oops, not a viable device */
DISK_F_NOCACHE: 0) != 0) /* oops, not a viable device */
return (-1); return (-1);
else else
disk_close(dev); disk_close(dev);
if (biosdev < 0x80) { if (biosdev < 0x80) {
/* floppy (or emulated floppy) or ATAPI device */ /* floppy (or emulated floppy) or ATAPI device */
if (bdinfo[dev->d_unit].bd_type == DT_ATAPI) { if (bdinfo[dev->d_unit].bd_type == DT_ATAPI) {
/* is an ATAPI disk */ /* is an ATAPI disk */
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