+// SPDX-License-Identifier: GPL-2.0-only
/*
* linux/fs/adfs/dir.c
*
* Copyright (C) 1999-2000 Russell King
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
* Common directory handling for ADFS
*/
#include "adfs.h"
if (obj->name_len <= 2 && dots == obj->name_len)
obj->name[0] = '^';
- obj->filetype = -1;
-
/*
- * object is a file and is filetyped and timestamped?
- * RISC OS 12-bit filetype is stored in load_address[19:8]
+ * If the object is a file, and the user requested the ,xyz hex
+ * filetype suffix to the name, check the filetype and append.
*/
- if ((0 == (obj->attr & ADFS_NDA_DIRECTORY)) &&
- (0xfff00000 == (0xfff00000 & obj->loadaddr))) {
- obj->filetype = (__u16) ((0x000fff00 & obj->loadaddr) >> 8);
-
- /* optionally append the ,xyz hex filetype suffix */
- if (ADFS_SB(dir->sb)->s_ftsuffix) {
- __u16 filetype = obj->filetype;
+ if (!(obj->attr & ADFS_NDA_DIRECTORY) && ADFS_SB(dir->sb)->s_ftsuffix) {
+ u16 filetype = adfs_filetype(obj->loadaddr);
+ if (filetype != ADFS_FILETYPE_NONE) {
obj->name[obj->name_len++] = ',';
obj->name[obj->name_len++] = hex_asc_lo(filetype >> 8);
obj->name[obj->name_len++] = hex_asc_lo(filetype >> 4);
goto unlock_out;
while (ops->getnext(&dir, &obj) == 0) {
if (!dir_emit(ctx, obj.name, obj.name_len,
- obj.file_id, DT_UNKNOWN))
+ obj.indaddr, DT_UNKNOWN))
break;
ctx->pos++;
}
const struct adfs_dir_ops *ops = ADFS_SB(sb)->s_dir;
struct adfs_dir dir;
- printk(KERN_INFO "adfs_dir_update: object %06X in dir %06X\n",
- obj->file_id, obj->parent_id);
+ printk(KERN_INFO "adfs_dir_update: object %06x in dir %06x\n",
+ obj->indaddr, obj->parent_id);
if (!ops->update) {
ret = -EINVAL;
goto out;
if (ADFS_I(inode)->parent_id != dir.parent_id) {
- adfs_error(sb, "parent directory changed under me! (%lx but got %x)\n",
+ adfs_error(sb,
+ "parent directory changed under me! (%06x but got %06x)\n",
ADFS_I(inode)->parent_id, dir.parent_id);
ret = -EIO;
goto free_out;
+// SPDX-License-Identifier: GPL-2.0-only
/*
* linux/fs/adfs/dir_f.c
*
* Copyright (C) 1997-1999 Russell King
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
* E and F format directory handling
*/
- #include <linux/buffer_head.h>
#include "adfs.h"
#include "dir_f.h"
return (dircheck ^ (dircheck >> 8) ^ (dircheck >> 16) ^ (dircheck >> 24)) & 0xff;
}
- /*
- * Read and check that a directory is valid
- */
- static int
- adfs_dir_read(struct super_block *sb, unsigned long object_id,
- unsigned int size, struct adfs_dir *dir)
+ /* Read and check that a directory is valid */
+ static int adfs_dir_read(struct super_block *sb, u32 indaddr,
+ unsigned int size, struct adfs_dir *dir)
{
const unsigned int blocksize_bits = sb->s_blocksize_bits;
int blk = 0;
for (blk = 0; blk < size; blk++) {
int phys;
- phys = __adfs_block_map(sb, object_id, blk);
+ phys = __adfs_block_map(sb, indaddr, blk);
if (!phys) {
- adfs_error(sb, "dir object %lX has a hole at offset %d",
- object_id, blk);
+ adfs_error(sb, "dir %06x has a hole at offset %d",
+ indaddr, blk);
goto release_buffers;
}
return 0;
bad_dir:
- adfs_error(sb, "corrupted directory fragment %lX",
- object_id);
+ adfs_error(sb, "dir %06x is corrupted", indaddr);
release_buffers:
for (blk -= 1; blk >= 0; blk -= 1)
brelse(dir->bh[blk]);
}
obj->name_len = name_len;
- obj->file_id = adfs_readval(de->dirinddiscadd, 3);
+ obj->indaddr = adfs_readval(de->dirinddiscadd, 3);
obj->loadaddr = adfs_readval(de->dirload, 4);
obj->execaddr = adfs_readval(de->direxec, 4);
obj->size = adfs_readval(de->dirlen, 4);
static inline void
adfs_obj2dir(struct adfs_direntry *de, struct object_info *obj)
{
- adfs_writeval(de->dirinddiscadd, 3, obj->file_id);
+ adfs_writeval(de->dirinddiscadd, 3, obj->indaddr);
adfs_writeval(de->dirload, 4, obj->loadaddr);
adfs_writeval(de->direxec, 4, obj->execaddr);
adfs_writeval(de->dirlen, 4, obj->size);
* the caller is responsible for holding the necessary
* locks.
*/
- static int
- adfs_dir_find_entry(struct adfs_dir *dir, unsigned long object_id)
+ static int adfs_dir_find_entry(struct adfs_dir *dir, u32 indaddr)
{
int pos, ret;
if (!__adfs_dir_get(dir, pos, &obj))
break;
- if (obj.file_id == object_id) {
+ if (obj.indaddr == indaddr) {
ret = pos;
break;
}
return ret;
}
- static int
- adfs_f_read(struct super_block *sb, unsigned int id, unsigned int sz, struct adfs_dir *dir)
+ static int adfs_f_read(struct super_block *sb, u32 indaddr, unsigned int size,
+ struct adfs_dir *dir)
{
int ret;
- if (sz != ADFS_NEWDIR_SIZE)
+ if (size != ADFS_NEWDIR_SIZE)
return -EIO;
- ret = adfs_dir_read(sb, id, sz, dir);
+ ret = adfs_dir_read(sb, indaddr, size, dir);
if (ret)
adfs_error(sb, "unable to read directory");
else
struct super_block *sb = dir->sb;
int ret, i;
- ret = adfs_dir_find_entry(dir, obj->file_id);
+ ret = adfs_dir_find_entry(dir, obj->indaddr);
if (ret < 0) {
adfs_error(dir->sb, "unable to locate entry to update");
goto out;
+// SPDX-License-Identifier: GPL-2.0-only
/*
* linux/fs/adfs/dir_fplus.c
*
* Copyright (C) 1997-1999 Russell King
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
- #include <linux/buffer_head.h>
#include <linux/slab.h>
#include "adfs.h"
#include "dir_fplus.h"
h = (struct adfs_bigdirheader *)dir->bh_fplus[0]->b_data;
size = le32_to_cpu(h->bigdirsize);
if (size != sz) {
- printk(KERN_WARNING "adfs: adfs_fplus_read:"
- " directory header size %X\n"
- " does not match directory size %X\n",
- size, sz);
+ adfs_msg(sb, KERN_WARNING,
+ "directory header size %X does not match directory size %X",
+ size, sz);
}
if (h->bigdirversion[0] != 0 || h->bigdirversion[1] != 0 ||
h->bigdirversion[2] != 0 || size & 2047 ||
h->bigdirstartname != cpu_to_le32(BIGDIRSTARTNAME)) {
- printk(KERN_WARNING "adfs: dir object %X has"
- " malformed dir header\n", id);
+ adfs_error(sb, "dir %06x has malformed header", id);
goto out;
}
kcalloc(size, sizeof(struct buffer_head *),
GFP_KERNEL);
if (!bh_fplus) {
+ adfs_msg(sb, KERN_ERR,
+ "not enough memory for dir object %X (%d blocks)",
+ id, size);
ret = -ENOMEM;
- adfs_error(sb, "not enough memory for"
- " dir object %X (%d blocks)", id, size);
goto out;
}
dir->bh_fplus = bh_fplus;
if (t->bigdirendname != cpu_to_le32(BIGDIRENDNAME) ||
t->bigdirendmasseq != h->startmasseq ||
t->reserved[0] != 0 || t->reserved[1] != 0) {
- printk(KERN_WARNING "adfs: dir object %X has "
- "malformed dir end\n", id);
+ adfs_error(sb, "dir %06x has malformed tail", id);
goto out;
}
obj->loadaddr = le32_to_cpu(bde.bigdirload);
obj->execaddr = le32_to_cpu(bde.bigdirexec);
obj->size = le32_to_cpu(bde.bigdirlen);
- obj->file_id = le32_to_cpu(bde.bigdirindaddr);
+ obj->indaddr = le32_to_cpu(bde.bigdirindaddr);
obj->attr = le32_to_cpu(bde.bigdirattr);
obj->name_len = le32_to_cpu(bde.bigdirobnamelen);
+// SPDX-License-Identifier: GPL-2.0-only
/*
* linux/fs/adfs/inode.c
*
* Copyright (C) 1997-1999 Russell King
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#include <linux/buffer_head.h>
#include <linux/writeback.h>
return S_IFDIR | S_IXUGO | mode;
}
- switch (ADFS_I(inode)->filetype) {
+ switch (adfs_filetype(ADFS_I(inode)->loadaddr)) {
case 0xfc0: /* LinkFS */
return S_IFLNK|S_IRWXUGO;
2208988800000000000LL;
s64 nsec;
- if (ADFS_I(inode)->stamped == 0)
+ if (!adfs_inode_is_stamped(inode))
goto cur_time;
high = ADFS_I(inode)->loadaddr & 0xFF; /* top 8 bits of timestamp */
{
unsigned int high, low;
- if (ADFS_I(inode)->stamped) {
+ if (adfs_inode_is_stamped(inode)) {
/* convert 32-bit seconds to 40-bit centi-seconds */
low = (secs & 255) * 100;
high = (secs / 256) * 100 + (low >> 8) + 0x336e996a;
inode->i_uid = ADFS_SB(sb)->s_uid;
inode->i_gid = ADFS_SB(sb)->s_gid;
- inode->i_ino = obj->file_id;
+ inode->i_ino = obj->indaddr;
inode->i_size = obj->size;
set_nlink(inode, 2);
inode->i_blocks = (inode->i_size + sb->s_blocksize - 1) >>
ADFS_I(inode)->loadaddr = obj->loadaddr;
ADFS_I(inode)->execaddr = obj->execaddr;
ADFS_I(inode)->attr = obj->attr;
- ADFS_I(inode)->filetype = obj->filetype;
- ADFS_I(inode)->stamped = ((obj->loadaddr & 0xfff00000) == 0xfff00000);
inode->i_mode = adfs_atts2mode(sb, inode);
adfs_adfs2unix_time(&inode->i_mtime, inode);
struct object_info obj;
int ret;
- obj.file_id = inode->i_ino;
+ obj.indaddr = inode->i_ino;
obj.name_len = 0;
obj.parent_id = ADFS_I(inode)->parent_id;
obj.loadaddr = ADFS_I(inode)->loadaddr;
+// SPDX-License-Identifier: GPL-2.0-only
/*
* linux/fs/adfs/map.c
*
* Copyright (C) 1997-2002 Russell King
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
- #include <linux/buffer_head.h>
#include <asm/unaligned.h>
#include "adfs.h"
* output of:
* gcc -D__KERNEL__ -O2 -I../../include -o - -S map.c
*/
- static int
- lookup_zone(const struct adfs_discmap *dm, const unsigned int idlen,
- const unsigned int frag_id, unsigned int *offset)
+ static int lookup_zone(const struct adfs_discmap *dm, const unsigned int idlen,
+ const u32 frag_id, unsigned int *offset)
{
const unsigned int mapsize = dm->dm_endbit;
const u32 idmask = (1 << idlen) - 1;
return 0;
}
- static int
- scan_map(struct adfs_sb_info *asb, unsigned int zone,
- const unsigned int frag_id, unsigned int mapoff)
+ static int scan_map(struct adfs_sb_info *asb, unsigned int zone,
+ const u32 frag_id, unsigned int mapoff)
{
const unsigned int idlen = asb->s_idlen;
struct adfs_discmap *dm, *dm_end;
return signed_asl(total, asb->s_map2blk);
}
- int
- adfs_map_lookup(struct super_block *sb, unsigned int frag_id,
- unsigned int offset)
+ int adfs_map_lookup(struct super_block *sb, u32 frag_id, unsigned int offset)
{
struct adfs_sb_info *asb = ADFS_SB(sb);
unsigned int zone, mapoff;
+// SPDX-License-Identifier: GPL-2.0-only
/*
* linux/fs/adfs/super.c
*
* Copyright (C) 1997-1999 Russell King
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#include <linux/module.h>
#include <linux/init.h>
- #include <linux/buffer_head.h>
#include <linux/parser.h>
#include <linux/mount.h>
#include <linux/seq_file.h>
#include "dir_f.h"
#include "dir_fplus.h"
+ #define ADFS_SB_FLAGS SB_NOATIME
+
#define ADFS_DEFAULT_OWNER_MASK S_IRWXU
#define ADFS_DEFAULT_OTHER_MASK (S_IRWXG | S_IRWXO)
void __adfs_error(struct super_block *sb, const char *function, const char *fmt, ...)
{
- char error_buf[128];
+ struct va_format vaf;
va_list args;
va_start(args, fmt);
- vsnprintf(error_buf, sizeof(error_buf), fmt, args);
- va_end(args);
+ vaf.fmt = fmt;
+ vaf.va = &args;
- printk(KERN_CRIT "ADFS-fs error (device %s)%s%s: %s\n",
+ printk(KERN_CRIT "ADFS-fs error (device %s)%s%s: %pV\n",
sb->s_id, function ? ": " : "",
- function ? function : "", error_buf);
+ function ? function : "", &vaf);
+
+ va_end(args);
+ }
+
+ void adfs_msg(struct super_block *sb, const char *pfx, const char *fmt, ...)
+ {
+ struct va_format vaf;
+ va_list args;
+
+ va_start(args, fmt);
+ vaf.fmt = fmt;
+ vaf.va = &args;
+ printk("%sADFS-fs (%s): %pV\n", pfx, sb->s_id, &vaf);
+ va_end(args);
}
static int adfs_checkdiscrecord(struct adfs_discrecord *dr)
{
+ unsigned int max_idlen;
int i;
/* sector size must be 256, 512 or 1024 bytes */
if (le32_to_cpu(dr->disc_size_high) >> dr->log2secsize)
return 1;
- /* idlen must be no greater than 19 v2 [1.0] */
- if (dr->idlen > 19)
+ /*
+ * Maximum idlen is limited to 16 bits for new directories by
+ * the three-byte storage of an indirect disc address. For
+ * big directories, idlen must be no greater than 19 v2 [1.0]
+ */
+ max_idlen = dr->format_version ? 19 : 16;
+ if (dr->idlen > max_idlen)
return 1;
/* reserved bytes should be zero */
{Opt_err, NULL}
};
- static int parse_options(struct super_block *sb, char *options)
+ static int parse_options(struct super_block *sb, struct adfs_sb_info *asb,
+ char *options)
{
char *p;
- struct adfs_sb_info *asb = ADFS_SB(sb);
int option;
if (!options)
asb->s_ftsuffix = option;
break;
default:
- printk("ADFS-fs: unrecognised mount option \"%s\" "
- "or missing value\n", p);
+ adfs_msg(sb, KERN_ERR,
+ "unrecognised mount option \"%s\" or missing value",
+ p);
return -EINVAL;
}
}
static int adfs_remount(struct super_block *sb, int *flags, char *data)
{
+ struct adfs_sb_info temp_asb;
+ int ret;
+
sync_filesystem(sb);
- *flags |= SB_NODIRATIME;
- return parse_options(sb, data);
+ *flags |= ADFS_SB_FLAGS;
+
+ temp_asb = *ADFS_SB(sb);
+ ret = parse_options(sb, &temp_asb, data);
+ if (ret == 0)
+ *ADFS_SB(sb) = temp_asb;
+
+ return ret;
}
static int adfs_statfs(struct dentry *dentry, struct kstatfs *buf)
{
struct super_block *sb = dentry->d_sb;
struct adfs_sb_info *sbi = ADFS_SB(sb);
+ struct adfs_discrecord *dr = adfs_map_discrecord(sbi->s_map);
u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
buf->f_type = ADFS_SUPER_MAGIC;
buf->f_namelen = sbi->s_namelen;
buf->f_bsize = sb->s_blocksize;
- buf->f_blocks = sbi->s_size;
+ buf->f_blocks = adfs_disc_size(dr) >> sb->s_blocksize_bits;
buf->f_files = sbi->s_ids_per_zone * sbi->s_map_size;
buf->f_bavail =
buf->f_bfree = adfs_map_free(sb);
i = zone - 1;
dm[0].dm_startblk = 0;
dm[0].dm_startbit = ADFS_DR_SIZE_BITS;
- dm[i].dm_endbit = (le32_to_cpu(dr->disc_size_high) << (32 - dr->log2bpmb)) +
- (le32_to_cpu(dr->disc_size) >> dr->log2bpmb) +
+ dm[i].dm_endbit = (adfs_disc_size(dr) >> dr->log2bpmb) +
(ADFS_DR_SIZE_BITS - i * zone_size);
if (adfs_checkmap(sb, dm))
return ERR_PTR(-EIO);
}
- static inline unsigned long adfs_discsize(struct adfs_discrecord *dr, int block_bits)
- {
- unsigned long discsize;
-
- discsize = le32_to_cpu(dr->disc_size_high) << (32 - block_bits);
- discsize |= le32_to_cpu(dr->disc_size) >> block_bits;
-
- return discsize;
- }
-
static int adfs_fill_super(struct super_block *sb, void *data, int silent)
{
struct adfs_discrecord *dr;
struct buffer_head *bh;
struct object_info root_obj;
unsigned char *b_data;
+ unsigned int blocksize;
struct adfs_sb_info *asb;
struct inode *root;
int ret = -EINVAL;
- sb->s_flags |= SB_NODIRATIME;
+ sb->s_flags |= ADFS_SB_FLAGS;
asb = kzalloc(sizeof(*asb), GFP_KERNEL);
if (!asb)
asb->s_other_mask = ADFS_DEFAULT_OTHER_MASK;
asb->s_ftsuffix = 0;
- if (parse_options(sb, data))
+ if (parse_options(sb, asb, data))
goto error;
sb_set_blocksize(sb, BLOCK_SIZE);
if (!(bh = sb_bread(sb, ADFS_DISCRECORD / BLOCK_SIZE))) {
- adfs_error(sb, "unable to read superblock");
+ adfs_msg(sb, KERN_ERR, "error: unable to read superblock");
ret = -EIO;
goto error;
}
b_data = bh->b_data + (ADFS_DISCRECORD % BLOCK_SIZE);
if (adfs_checkbblk(b_data)) {
- if (!silent)
- printk("VFS: Can't find an adfs filesystem on dev "
- "%s.\n", sb->s_id);
ret = -EINVAL;
- goto error_free_bh;
+ goto error_badfs;
}
dr = (struct adfs_discrecord *)(b_data + ADFS_DR_OFFSET);
* Do some sanity checks on the ADFS disc record
*/
if (adfs_checkdiscrecord(dr)) {
- if (!silent)
- printk("VPS: Can't find an adfs filesystem on dev "
- "%s.\n", sb->s_id);
ret = -EINVAL;
- goto error_free_bh;
+ goto error_badfs;
}
+ blocksize = 1 << dr->log2secsize;
brelse(bh);
- if (sb_set_blocksize(sb, 1 << dr->log2secsize)) {
+
+ if (sb_set_blocksize(sb, blocksize)) {
bh = sb_bread(sb, ADFS_DISCRECORD / sb->s_blocksize);
if (!bh) {
- adfs_error(sb, "couldn't read superblock on "
- "2nd try.");
+ adfs_msg(sb, KERN_ERR,
+ "error: couldn't read superblock on 2nd try.");
ret = -EIO;
goto error;
}
b_data = bh->b_data + (ADFS_DISCRECORD % sb->s_blocksize);
if (adfs_checkbblk(b_data)) {
- adfs_error(sb, "disc record mismatch, very weird!");
+ adfs_msg(sb, KERN_ERR,
+ "error: disc record mismatch, very weird!");
ret = -EINVAL;
goto error_free_bh;
}
dr = (struct adfs_discrecord *)(b_data + ADFS_DR_OFFSET);
} else {
if (!silent)
- printk(KERN_ERR "VFS: Unsupported blocksize on dev "
- "%s.\n", sb->s_id);
+ adfs_msg(sb, KERN_ERR,
+ "error: unsupported blocksize");
ret = -EINVAL;
goto error;
}
asb->s_idlen = dr->idlen;
asb->s_map_size = dr->nzones | (dr->nzones_high << 8);
asb->s_map2blk = dr->log2bpmb - dr->log2secsize;
- asb->s_size = adfs_discsize(dr, sb->s_blocksize_bits);
- asb->s_version = dr->format_version;
asb->s_log2sharesize = dr->log2sharesize;
asb->s_map = adfs_read_map(sb, dr);
*/
sb->s_op = &adfs_sops;
- dr = (struct adfs_discrecord *)(asb->s_map[0].dm_bh->b_data + 4);
+ dr = adfs_map_discrecord(asb->s_map);
- root_obj.parent_id = root_obj.file_id = le32_to_cpu(dr->root);
+ root_obj.parent_id = root_obj.indaddr = le32_to_cpu(dr->root);
root_obj.name_len = 0;
/* Set root object date as 01 Jan 1987 00:00:00 */
root_obj.loadaddr = 0xfff0003f;
root_obj.size = ADFS_NEWDIR_SIZE;
root_obj.attr = ADFS_NDA_DIRECTORY | ADFS_NDA_OWNER_READ |
ADFS_NDA_OWNER_WRITE | ADFS_NDA_PUBLIC_READ;
- root_obj.filetype = -1;
/*
* If this is a F+ disk with variable length directories,
* get the root_size from the disc record.
*/
- if (asb->s_version) {
+ if (dr->format_version) {
root_obj.size = le32_to_cpu(dr->root_size);
asb->s_dir = &adfs_fplus_dir_ops;
asb->s_namelen = ADFS_FPLUS_NAME_LEN;
}
return 0;
+ error_badfs:
+ if (!silent)
+ adfs_msg(sb, KERN_ERR,
+ "error: can't find an ADFS filesystem on dev %s.",
+ sb->s_id);
error_free_bh:
brelse(bh);
error:
projects / J-linux.git / commitdiff