summaryrefslogtreecommitdiffstats
path: root/fs/partitions
diff options
context:
space:
mode:
Diffstat (limited to 'fs/partitions')
-rw-r--r--fs/partitions/acorn.c9
-rw-r--r--fs/partitions/check.c1
-rw-r--r--fs/partitions/ibm.c167
-rw-r--r--fs/partitions/ldm.c137
-rw-r--r--fs/partitions/ldm.h2
5 files changed, 199 insertions, 117 deletions
diff --git a/fs/partitions/acorn.c b/fs/partitions/acorn.c
index e349132..3d3e166 100644
--- a/fs/partitions/acorn.c
+++ b/fs/partitions/acorn.c
@@ -25,6 +25,8 @@
#define PARTITION_RISCIX_SCSI 2
#define PARTITION_LINUX 9
+#if defined(CONFIG_ACORN_PARTITION_CUMANA) || \
+ defined(CONFIG_ACORN_PARTITION_ADFS)
static struct adfs_discrecord *
adfs_partition(struct parsed_partitions *state, char *name, char *data,
unsigned long first_sector, int slot)
@@ -48,6 +50,7 @@ adfs_partition(struct parsed_partitions *state, char *name, char *data,
put_partition(state, slot, first_sector, nr_sects);
return dr;
}
+#endif
#ifdef CONFIG_ACORN_PARTITION_RISCIX
@@ -65,6 +68,8 @@ struct riscix_record {
struct riscix_part part[8];
};
+#if defined(CONFIG_ACORN_PARTITION_CUMANA) || \
+ defined(CONFIG_ACORN_PARTITION_ADFS)
static int
riscix_partition(struct parsed_partitions *state, struct block_device *bdev,
unsigned long first_sect, int slot, unsigned long nr_sects)
@@ -105,6 +110,7 @@ riscix_partition(struct parsed_partitions *state, struct block_device *bdev,
return slot;
}
#endif
+#endif
#define LINUX_NATIVE_MAGIC 0xdeafa1de
#define LINUX_SWAP_MAGIC 0xdeafab1e
@@ -115,6 +121,8 @@ struct linux_part {
__le32 nr_sects;
};
+#if defined(CONFIG_ACORN_PARTITION_CUMANA) || \
+ defined(CONFIG_ACORN_PARTITION_ADFS)
static int
linux_partition(struct parsed_partitions *state, struct block_device *bdev,
unsigned long first_sect, int slot, unsigned long nr_sects)
@@ -146,6 +154,7 @@ linux_partition(struct parsed_partitions *state, struct block_device *bdev,
put_dev_sector(sect);
return slot;
}
+#endif
#ifdef CONFIG_ACORN_PARTITION_CUMANA
int
diff --git a/fs/partitions/check.c b/fs/partitions/check.c
index 9a3a058..98e0b85 100644
--- a/fs/partitions/check.c
+++ b/fs/partitions/check.c
@@ -397,7 +397,6 @@ void add_partition(struct gendisk *disk, int part, sector_t start, sector_t len,
static struct attribute addpartattr = {
.name = "whole_disk",
.mode = S_IRUSR | S_IRGRP | S_IROTH,
- .owner = THIS_MODULE,
};
sysfs_create_file(&p->kobj, &addpartattr);
diff --git a/fs/partitions/ibm.c b/fs/partitions/ibm.c
index 9f7ad42..1e064c4 100644
--- a/fs/partitions/ibm.c
+++ b/fs/partitions/ibm.c
@@ -45,7 +45,7 @@ ibm_partition(struct parsed_partitions *state, struct block_device *bdev)
{
int blocksize, offset, size,res;
loff_t i_size;
- dasd_information_t *info;
+ dasd_information2_t *info;
struct hd_geometry *geo;
char type[5] = {0,};
char name[7] = {0,};
@@ -64,14 +64,17 @@ ibm_partition(struct parsed_partitions *state, struct block_device *bdev)
if (i_size == 0)
goto out_exit;
- if ((info = kmalloc(sizeof(dasd_information_t), GFP_KERNEL)) == NULL)
+ info = kmalloc(sizeof(dasd_information2_t), GFP_KERNEL);
+ if (info == NULL)
goto out_exit;
- if ((geo = kmalloc(sizeof(struct hd_geometry), GFP_KERNEL)) == NULL)
+ geo = kmalloc(sizeof(struct hd_geometry), GFP_KERNEL);
+ if (geo == NULL)
goto out_nogeo;
- if ((label = kmalloc(sizeof(union label_t), GFP_KERNEL)) == NULL)
+ label = kmalloc(sizeof(union label_t), GFP_KERNEL);
+ if (label == NULL)
goto out_nolab;
- if (ioctl_by_bdev(bdev, BIODASDINFO, (unsigned long)info) != 0 ||
+ if (ioctl_by_bdev(bdev, BIODASDINFO2, (unsigned long)info) != 0 ||
ioctl_by_bdev(bdev, HDIO_GETGEO, (unsigned long)geo) != 0)
goto out_freeall;
@@ -96,84 +99,108 @@ ibm_partition(struct parsed_partitions *state, struct block_device *bdev)
res = 1;
/*
- * Three different types: CMS1, VOL1 and LNX1/unlabeled
+ * Three different formats: LDL, CDL and unformated disk
+ *
+ * identified by info->format
+ *
+ * unformated disks we do not have to care about
*/
- if (strncmp(type, "CMS1", 4) == 0) {
- /*
- * VM style CMS1 labeled disk
- */
- if (label->cms.disk_offset != 0) {
- printk("CMS1/%8s(MDSK):", name);
- /* disk is reserved minidisk */
- blocksize = label->cms.block_size;
- offset = label->cms.disk_offset;
- size = (label->cms.block_count - 1) * (blocksize >> 9);
+ if (info->format == DASD_FORMAT_LDL) {
+ if (strncmp(type, "CMS1", 4) == 0) {
+ /*
+ * VM style CMS1 labeled disk
+ */
+ if (label->cms.disk_offset != 0) {
+ printk("CMS1/%8s(MDSK):", name);
+ /* disk is reserved minidisk */
+ blocksize = label->cms.block_size;
+ offset = label->cms.disk_offset;
+ size = (label->cms.block_count - 1)
+ * (blocksize >> 9);
+ } else {
+ printk("CMS1/%8s:", name);
+ offset = (info->label_block + 1);
+ size = i_size >> 9;
+ }
} else {
- printk("CMS1/%8s:", name);
+ /*
+ * Old style LNX1 or unlabeled disk
+ */
+ if (strncmp(type, "LNX1", 4) == 0)
+ printk ("LNX1/%8s:", name);
+ else
+ printk("(nonl)");
offset = (info->label_block + 1);
size = i_size >> 9;
}
put_partition(state, 1, offset*(blocksize >> 9),
- size-offset*(blocksize >> 9));
- } else if ((strncmp(type, "VOL1", 4) == 0) &&
- (!info->FBA_layout) && (!strcmp(info->type, "ECKD"))) {
+ size-offset*(blocksize >> 9));
+ } else if (info->format == DASD_FORMAT_CDL) {
/*
- * New style VOL1 labeled disk
+ * New style CDL formatted disk
*/
unsigned int blk;
int counter;
- printk("VOL1/%8s:", name);
-
- /* get block number and read then go through format1 labels */
- blk = cchhb2blk(&label->vol.vtoc, geo) + 1;
- counter = 0;
- while ((data = read_dev_sector(bdev, blk*(blocksize/512),
- &sect)) != NULL) {
- struct vtoc_format1_label f1;
-
- memcpy(&f1, data, sizeof(struct vtoc_format1_label));
- put_dev_sector(sect);
-
- /* skip FMT4 / FMT5 / FMT7 labels */
- if (f1.DS1FMTID == _ascebc['4']
- || f1.DS1FMTID == _ascebc['5']
- || f1.DS1FMTID == _ascebc['7']) {
- blk++;
- continue;
- }
-
- /* only FMT1 valid at this point */
- if (f1.DS1FMTID != _ascebc['1'])
- break;
-
- /* OK, we got valid partition data */
- offset = cchh2blk(&f1.DS1EXT1.llimit, geo);
- size = cchh2blk(&f1.DS1EXT1.ulimit, geo) -
- offset + geo->sectors;
- if (counter >= state->limit)
- break;
- put_partition(state, counter + 1,
- offset * (blocksize >> 9),
- size * (blocksize >> 9));
- counter++;
- blk++;
- }
- if (!data)
- /* Are we not supposed to report this ? */
- goto out_readerr;
- } else {
/*
- * Old style LNX1 or unlabeled disk
+ * check if VOL1 label is available
+ * if not, something is wrong, skipping partition detection
*/
- if (strncmp(type, "LNX1", 4) == 0)
- printk ("LNX1/%8s:", name);
- else
- printk("(nonl)/%8s:", name);
- offset = (info->label_block + 1);
- size = i_size >> 9;
- put_partition(state, 1, offset*(blocksize >> 9),
- size-offset*(blocksize >> 9));
+ if (strncmp(type, "VOL1", 4) == 0) {
+ printk("VOL1/%8s:", name);
+ /*
+ * get block number and read then go through format1
+ * labels
+ */
+ blk = cchhb2blk(&label->vol.vtoc, geo) + 1;
+ counter = 0;
+ data = read_dev_sector(bdev, blk * (blocksize/512),
+ &sect);
+ while (data != NULL) {
+ struct vtoc_format1_label f1;
+
+ memcpy(&f1, data,
+ sizeof(struct vtoc_format1_label));
+ put_dev_sector(sect);
+
+ /* skip FMT4 / FMT5 / FMT7 labels */
+ if (f1.DS1FMTID == _ascebc['4']
+ || f1.DS1FMTID == _ascebc['5']
+ || f1.DS1FMTID == _ascebc['7']) {
+ blk++;
+ data = read_dev_sector(bdev, blk *
+ (blocksize/512),
+ &sect);
+ continue;
+ }
+
+ /* only FMT1 valid at this point */
+ if (f1.DS1FMTID != _ascebc['1'])
+ break;
+
+ /* OK, we got valid partition data */
+ offset = cchh2blk(&f1.DS1EXT1.llimit, geo);
+ size = cchh2blk(&f1.DS1EXT1.ulimit, geo) -
+ offset + geo->sectors;
+ if (counter >= state->limit)
+ break;
+ put_partition(state, counter + 1,
+ offset * (blocksize >> 9),
+ size * (blocksize >> 9));
+ counter++;
+ blk++;
+ data = read_dev_sector(bdev,
+ blk * (blocksize/512),
+ &sect);
+ }
+
+ if (!data)
+ /* Are we not supposed to report this ? */
+ goto out_readerr;
+ } else
+ printk(KERN_WARNING "Warning, expected Label VOL1 not "
+ "found, treating as CDL formated Disk");
+
}
printk("\n");
diff --git a/fs/partitions/ldm.c b/fs/partitions/ldm.c
index 99873a2..e7dd1d4 100644
--- a/fs/partitions/ldm.c
+++ b/fs/partitions/ldm.c
@@ -677,15 +677,24 @@ static bool ldm_create_data_partitions (struct parsed_partitions *pp,
* Return: -1 Error, the calculated offset exceeded the size of the buffer
* n OK, a range-checked offset into buffer
*/
-static int ldm_relative (const u8 *buffer, int buflen, int base, int offset)
+static int ldm_relative(const u8 *buffer, int buflen, int base, int offset)
{
base += offset;
- if ((!buffer) || (offset < 0) || (base > buflen))
+ if (!buffer || offset < 0 || base > buflen) {
+ if (!buffer)
+ ldm_error("!buffer");
+ if (offset < 0)
+ ldm_error("offset (%d) < 0", offset);
+ if (base > buflen)
+ ldm_error("base (%d) > buflen (%d)", base, buflen);
return -1;
- if ((base + buffer[base]) >= buflen)
+ }
+ if (base + buffer[base] >= buflen) {
+ ldm_error("base (%d) + buffer[base] (%d) >= buflen (%d)", base,
+ buffer[base], buflen);
return -1;
-
+ }
return buffer[base] + offset + 1;
}
@@ -1054,60 +1063,98 @@ static bool ldm_parse_prt3(const u8 *buffer, int buflen, struct vblk *vb)
* Return: 'true' @vb contains a Volume VBLK
* 'false' @vb contents are not defined
*/
-static bool ldm_parse_vol5 (const u8 *buffer, int buflen, struct vblk *vb)
+static bool ldm_parse_vol5(const u8 *buffer, int buflen, struct vblk *vb)
{
- int r_objid, r_name, r_vtype, r_child, r_size, r_id1, r_id2, r_size2;
- int r_drive, len;
+ int r_objid, r_name, r_vtype, r_disable_drive_letter, r_child, r_size;
+ int r_id1, r_id2, r_size2, r_drive, len;
struct vblk_volu *volu;
- BUG_ON (!buffer || !vb);
-
- r_objid = ldm_relative (buffer, buflen, 0x18, 0);
- r_name = ldm_relative (buffer, buflen, 0x18, r_objid);
- r_vtype = ldm_relative (buffer, buflen, 0x18, r_name);
- r_child = ldm_relative (buffer, buflen, 0x2E, r_vtype);
- r_size = ldm_relative (buffer, buflen, 0x3E, r_child);
-
- if (buffer[0x12] & VBLK_FLAG_VOLU_ID1)
- r_id1 = ldm_relative (buffer, buflen, 0x53, r_size);
- else
+ BUG_ON(!buffer || !vb);
+ r_objid = ldm_relative(buffer, buflen, 0x18, 0);
+ if (r_objid < 0) {
+ ldm_error("r_objid %d < 0", r_objid);
+ return false;
+ }
+ r_name = ldm_relative(buffer, buflen, 0x18, r_objid);
+ if (r_name < 0) {
+ ldm_error("r_name %d < 0", r_name);
+ return false;
+ }
+ r_vtype = ldm_relative(buffer, buflen, 0x18, r_name);
+ if (r_vtype < 0) {
+ ldm_error("r_vtype %d < 0", r_vtype);
+ return false;
+ }
+ r_disable_drive_letter = ldm_relative(buffer, buflen, 0x18, r_vtype);
+ if (r_disable_drive_letter < 0) {
+ ldm_error("r_disable_drive_letter %d < 0",
+ r_disable_drive_letter);
+ return false;
+ }
+ r_child = ldm_relative(buffer, buflen, 0x2D, r_disable_drive_letter);
+ if (r_child < 0) {
+ ldm_error("r_child %d < 0", r_child);
+ return false;
+ }
+ r_size = ldm_relative(buffer, buflen, 0x3D, r_child);
+ if (r_size < 0) {
+ ldm_error("r_size %d < 0", r_size);
+ return false;
+ }
+ if (buffer[0x12] & VBLK_FLAG_VOLU_ID1) {
+ r_id1 = ldm_relative(buffer, buflen, 0x52, r_size);
+ if (r_id1 < 0) {
+ ldm_error("r_id1 %d < 0", r_id1);
+ return false;
+ }
+ } else
r_id1 = r_size;
-
- if (buffer[0x12] & VBLK_FLAG_VOLU_ID2)
- r_id2 = ldm_relative (buffer, buflen, 0x53, r_id1);
- else
+ if (buffer[0x12] & VBLK_FLAG_VOLU_ID2) {
+ r_id2 = ldm_relative(buffer, buflen, 0x52, r_id1);
+ if (r_id2 < 0) {
+ ldm_error("r_id2 %d < 0", r_id2);
+ return false;
+ }
+ } else
r_id2 = r_id1;
-
- if (buffer[0x12] & VBLK_FLAG_VOLU_SIZE)
- r_size2 = ldm_relative (buffer, buflen, 0x53, r_id2);
- else
+ if (buffer[0x12] & VBLK_FLAG_VOLU_SIZE) {
+ r_size2 = ldm_relative(buffer, buflen, 0x52, r_id2);
+ if (r_size2 < 0) {
+ ldm_error("r_size2 %d < 0", r_size2);
+ return false;
+ }
+ } else
r_size2 = r_id2;
-
- if (buffer[0x12] & VBLK_FLAG_VOLU_DRIVE)
- r_drive = ldm_relative (buffer, buflen, 0x53, r_size2);
- else
+ if (buffer[0x12] & VBLK_FLAG_VOLU_DRIVE) {
+ r_drive = ldm_relative(buffer, buflen, 0x52, r_size2);
+ if (r_drive < 0) {
+ ldm_error("r_drive %d < 0", r_drive);
+ return false;
+ }
+ } else
r_drive = r_size2;
-
len = r_drive;
- if (len < 0)
+ if (len < 0) {
+ ldm_error("len %d < 0", len);
return false;
-
+ }
len += VBLK_SIZE_VOL5;
- if (len != BE32 (buffer + 0x14))
+ if (len > BE32(buffer + 0x14)) {
+ ldm_error("len %d > BE32(buffer + 0x14) %d", len,
+ BE32(buffer + 0x14));
return false;
-
+ }
volu = &vb->vblk.volu;
-
- ldm_get_vstr (buffer + 0x18 + r_name, volu->volume_type,
- sizeof (volu->volume_type));
- memcpy (volu->volume_state, buffer + 0x19 + r_vtype,
- sizeof (volu->volume_state));
- volu->size = ldm_get_vnum (buffer + 0x3E + r_child);
- volu->partition_type = buffer[0x42 + r_size];
- memcpy (volu->guid, buffer + 0x43 + r_size, sizeof (volu->guid));
+ ldm_get_vstr(buffer + 0x18 + r_name, volu->volume_type,
+ sizeof(volu->volume_type));
+ memcpy(volu->volume_state, buffer + 0x18 + r_disable_drive_letter,
+ sizeof(volu->volume_state));
+ volu->size = ldm_get_vnum(buffer + 0x3D + r_child);
+ volu->partition_type = buffer[0x41 + r_size];
+ memcpy(volu->guid, buffer + 0x42 + r_size, sizeof(volu->guid));
if (buffer[0x12] & VBLK_FLAG_VOLU_DRIVE) {
- ldm_get_vstr (buffer + 0x53 + r_size, volu->drive_hint,
- sizeof (volu->drive_hint));
+ ldm_get_vstr(buffer + 0x52 + r_size, volu->drive_hint,
+ sizeof(volu->drive_hint));
}
return true;
}
diff --git a/fs/partitions/ldm.h b/fs/partitions/ldm.h
index d2e6a30..80f63b5 100644
--- a/fs/partitions/ldm.h
+++ b/fs/partitions/ldm.h
@@ -68,7 +68,7 @@ struct parsed_partitions;
#define VBLK_SIZE_DSK3 12
#define VBLK_SIZE_DSK4 45
#define VBLK_SIZE_PRT3 28
-#define VBLK_SIZE_VOL5 59
+#define VBLK_SIZE_VOL5 58
/* component types */
#define COMP_STRIPE 0x01 /* Stripe-set */
OpenPOWER on IntegriCloud