*
* Re-organised Feb 1998 Russell King
*/
-
-#include <linux/config.h>
+#include <linux/msdos_fs.h>
#include "check.h"
#include "msdos.h"
#include <asm/unaligned.h>
#define SYS_IND(p) (get_unaligned(&p->sys_ind))
-#define NR_SECTS(p) ({ __typeof__(p->nr_sects) __a = \
- get_unaligned(&p->nr_sects); \
+#define NR_SECTS(p) ({ __le32 __a = get_unaligned(&p->nr_sects); \
le32_to_cpu(__a); \
})
-#define START_SECT(p) ({ __typeof__(p->start_sect) __a = \
- get_unaligned(&p->start_sect); \
+#define START_SECT(p) ({ __le32 __a = get_unaligned(&p->start_sect); \
le32_to_cpu(__a); \
})
return (p[0] == MSDOS_LABEL_MAGIC1 && p[1] == MSDOS_LABEL_MAGIC2);
}
+/* Value is EBCDIC 'IBMA' */
+#define AIX_LABEL_MAGIC1 0xC9
+#define AIX_LABEL_MAGIC2 0xC2
+#define AIX_LABEL_MAGIC3 0xD4
+#define AIX_LABEL_MAGIC4 0xC1
+static int aix_magic_present(unsigned char *p, struct block_device *bdev)
+{
+ struct partition *pt = (struct partition *) (p + 0x1be);
+ Sector sect;
+ unsigned char *d;
+ int slot, ret = 0;
+
+ if (!(p[0] == AIX_LABEL_MAGIC1 &&
+ p[1] == AIX_LABEL_MAGIC2 &&
+ p[2] == AIX_LABEL_MAGIC3 &&
+ p[3] == AIX_LABEL_MAGIC4))
+ return 0;
+ /* Assume the partition table is valid if Linux partitions exists */
+ for (slot = 1; slot <= 4; slot++, pt++) {
+ if (pt->sys_ind == LINUX_SWAP_PARTITION ||
+ pt->sys_ind == LINUX_RAID_PARTITION ||
+ pt->sys_ind == LINUX_DATA_PARTITION ||
+ pt->sys_ind == LINUX_LVM_PARTITION ||
+ is_extended_partition(pt))
+ return 0;
+ }
+ d = read_dev_sector(bdev, 7, §);
+ if (d) {
+ if (d[0] == '_' && d[1] == 'L' && d[2] == 'V' && d[3] == 'M')
+ ret = 1;
+ put_dev_sector(sect);
+ };
+ return ret;
+}
+
/*
* Create devices for each logical partition in an extended partition.
* The logical partitions form a linked list, with each entry being
*/
for (i=0; i<4; i++, p++) {
u32 offs, size, next;
-
- if (SYS_IND(p) == 0)
- continue;
if (!NR_SECTS(p) || is_extended_partition(p))
continue;
put_partition(state, state->next, next, size);
if (SYS_IND(p) == LINUX_RAID_PARTITION)
- state->parts[state->next].flags = 1;
+ state->parts[state->next].flags = ADDPART_FLAG_RAID;
loopct = 0;
if (++state->next == state->limit)
goto done;
Sector sect;
struct solaris_x86_vtoc *v;
int i;
+ short max_nparts;
v = (struct solaris_x86_vtoc *)read_dev_sector(bdev, offset+1, §);
if (!v)
put_dev_sector(sect);
return;
}
- for (i=0; i<SOLARIS_X86_NUMSLICE && state->next<state->limit; i++) {
+ /* Ensure we can handle previous case of VTOC with 8 entries gracefully */
+ max_nparts = le16_to_cpu (v->v_nparts) > 8 ? SOLARIS_X86_NUMSLICE : 8;
+ for (i=0; i<max_nparts && state->next<state->limit; i++) {
struct solaris_x86_slice *s = &v->v_slice[i];
if (s->s_size == 0)
continue;
#endif
}
-#if defined(CONFIG_BSD_DISKLABEL) || defined(CONFIG_NEC98_PARTITION)
+#if defined(CONFIG_BSD_DISKLABEL)
/*
* Create devices for BSD partitions listed in a disklabel, under a
* dos-like partition. See parse_extended() for more information.
*/
-void
+static void
parse_bsd(struct parsed_partitions *state, struct block_device *bdev,
u32 offset, u32 size, int origin, char *flavour,
int max_partitions)
Sector sect;
unsigned char *data;
struct partition *p;
+ struct fat_boot_sector *fb;
int slot;
data = read_dev_sector(bdev, 0, §);
return 0;
}
+ if (aix_magic_present(data, bdev)) {
+ put_dev_sector(sect);
+ printk( " [AIX]");
+ return 0;
+ }
+
/*
* Now that the 55aa signature is present, this is probably
* either the boot sector of a FAT filesystem or a DOS-type
p = (struct partition *) (data + 0x1be);
for (slot = 1; slot <= 4; slot++, p++) {
if (p->boot_ind != 0 && p->boot_ind != 0x80) {
- put_dev_sector(sect);
- return 0;
+ /*
+ * Even without a valid boot inidicator value
+ * its still possible this is valid FAT filesystem
+ * without a partition table.
+ */
+ fb = (struct fat_boot_sector *) data;
+ if (slot == 1 && fb->reserved && fb->fats
+ && fat_valid_media(fb->media)) {
+ printk("\n");
+ put_dev_sector(sect);
+ return 1;
+ } else {
+ put_dev_sector(sect);
+ return 0;
+ }
}
}
for (slot = 1 ; slot <= 4 ; slot++, p++) {
u32 start = START_SECT(p)*sector_size;
u32 size = NR_SECTS(p)*sector_size;
- if (SYS_IND(p) == 0)
- continue;
if (!size)
continue;
if (is_extended_partition(p)) {