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-rw-r--r--fs/affs/affs.h20
-rw-r--r--fs/affs/amigaffs.c23
-rw-r--r--fs/affs/dir.c28
-rw-r--r--fs/affs/namei.c32
-rw-r--r--fs/affs/super.c8
5 files changed, 70 insertions, 41 deletions
diff --git a/fs/affs/affs.h b/fs/affs/affs.h
index 3952121f2f2..25b23b1e7f2 100644
--- a/fs/affs/affs.h
+++ b/fs/affs/affs.h
@@ -5,14 +5,6 @@
#include <linux/mutex.h>
#include <linux/workqueue.h>
-/* AmigaOS allows file names with up to 30 characters length.
- * Names longer than that will be silently truncated. If you
- * want to disallow this, comment out the following #define.
- * Creating filesystem objects with longer names will then
- * result in an error (ENAMETOOLONG).
- */
-/*#define AFFS_NO_TRUNCATE */
-
/* Ugly macros make the code more pretty. */
#define GET_END_PTR(st,p,sz) ((st *)((char *)(p)+((sz)-sizeof(st))))
@@ -28,7 +20,6 @@
#define AFFS_CACHE_SIZE PAGE_SIZE
-#define AFFS_MAX_PREALLOC 32
#define AFFS_LC_SIZE (AFFS_CACHE_SIZE/sizeof(u32)/2)
#define AFFS_AC_SIZE (AFFS_CACHE_SIZE/sizeof(struct affs_ext_key)/2)
#define AFFS_AC_MASK (AFFS_AC_SIZE-1)
@@ -118,6 +109,7 @@ struct affs_sb_info {
#define SF_OFS 0x0200 /* Old filesystem */
#define SF_PREFIX 0x0400 /* Buffer for prefix is allocated */
#define SF_VERBOSE 0x0800 /* Talk about fs when mounting */
+#define SF_NO_TRUNCATE 0x1000 /* Don't truncate filenames */
/* short cut to get to the affs specific sb data */
static inline struct affs_sb_info *AFFS_SB(struct super_block *sb)
@@ -137,9 +129,13 @@ extern void affs_fix_checksum(struct super_block *sb, struct buffer_head *bh);
extern void secs_to_datestamp(time_t secs, struct affs_date *ds);
extern umode_t prot_to_mode(u32 prot);
extern void mode_to_prot(struct inode *inode);
-extern void affs_error(struct super_block *sb, const char *function, const char *fmt, ...);
-extern void affs_warning(struct super_block *sb, const char *function, const char *fmt, ...);
-extern int affs_check_name(const unsigned char *name, int len);
+extern void affs_error(struct super_block *sb, const char *function,
+ const char *fmt, ...);
+extern void affs_warning(struct super_block *sb, const char *function,
+ const char *fmt, ...);
+extern bool affs_nofilenametruncate(const struct dentry *dentry);
+extern int affs_check_name(const unsigned char *name, int len,
+ bool notruncate);
extern int affs_copy_name(unsigned char *bstr, struct dentry *dentry);
/* bitmap. c */
diff --git a/fs/affs/amigaffs.c b/fs/affs/amigaffs.c
index d9a43674cb9..533a322c41c 100644
--- a/fs/affs/amigaffs.c
+++ b/fs/affs/amigaffs.c
@@ -471,20 +471,27 @@ affs_warning(struct super_block *sb, const char *function, const char *fmt, ...)
function,ErrorBuffer);
}
+bool
+affs_nofilenametruncate(const struct dentry *dentry)
+{
+ struct inode *inode = dentry->d_inode;
+ return AFFS_SB(inode->i_sb)->s_flags & SF_NO_TRUNCATE;
+
+}
+
/* Check if the name is valid for a affs object. */
int
-affs_check_name(const unsigned char *name, int len)
+affs_check_name(const unsigned char *name, int len, bool notruncate)
{
int i;
- if (len > 30)
-#ifdef AFFS_NO_TRUNCATE
- return -ENAMETOOLONG;
-#else
- len = 30;
-#endif
-
+ if (len > 30) {
+ if (notruncate)
+ return -ENAMETOOLONG;
+ else
+ len = 30;
+ }
for (i = 0; i < len; i++) {
if (name[i] < ' ' || name[i] == ':'
|| (name[i] > 0x7e && name[i] < 0xa0))
diff --git a/fs/affs/dir.c b/fs/affs/dir.c
index f1eba8c3644..cbbda476a80 100644
--- a/fs/affs/dir.c
+++ b/fs/affs/dir.c
@@ -52,8 +52,10 @@ affs_readdir(struct file *file, struct dir_context *ctx)
int hash_pos;
int chain_pos;
u32 ino;
+ int error = 0;
- pr_debug("AFFS: readdir(ino=%lu,f_pos=%lx)\n",inode->i_ino,(unsigned long)ctx->pos);
+ pr_debug("AFFS: readdir(ino=%lu,f_pos=%lx)\n",
+ inode->i_ino, (unsigned long)ctx->pos);
if (ctx->pos < 2) {
file->private_data = (void *)0;
@@ -72,7 +74,7 @@ affs_readdir(struct file *file, struct dir_context *ctx)
}
dir_bh = affs_bread(sb, inode->i_ino);
if (!dir_bh)
- goto readdir_out;
+ goto out_unlock_dir;
/* If the directory hasn't changed since the last call to readdir(),
* we can jump directly to where we left off.
@@ -88,7 +90,8 @@ affs_readdir(struct file *file, struct dir_context *ctx)
fh_bh = affs_bread(sb, ino);
if (!fh_bh) {
affs_error(sb, "readdir","Cannot read block %d", i);
- return -EIO;
+ error = -EIO;
+ goto out_brelse_dir;
}
ino = be32_to_cpu(AFFS_TAIL(sb, fh_bh)->hash_chain);
affs_brelse(fh_bh);
@@ -107,29 +110,34 @@ inside:
do {
fh_bh = affs_bread(sb, ino);
if (!fh_bh) {
- affs_error(sb, "readdir","Cannot read block %d", ino);
+ affs_error(sb, "readdir",
+ "Cannot read block %d", ino);
break;
}
namelen = min(AFFS_TAIL(sb, fh_bh)->name[0], (u8)30);
name = AFFS_TAIL(sb, fh_bh)->name + 1;
- pr_debug("AFFS: readdir(): filldir(\"%.*s\", ino=%u), hash=%d, f_pos=%x\n",
+ pr_debug("AFFS: readdir(): dir_emit(\"%.*s\", "
+ "ino=%u), hash=%d, f_pos=%x\n",
namelen, name, ino, hash_pos, (u32)ctx->pos);
+
if (!dir_emit(ctx, name, namelen, ino, DT_UNKNOWN))
- goto readdir_done;
+ goto done;
ctx->pos++;
ino = be32_to_cpu(AFFS_TAIL(sb, fh_bh)->hash_chain);
affs_brelse(fh_bh);
fh_bh = NULL;
} while (ino);
}
-readdir_done:
+done:
file->f_version = inode->i_version;
file->private_data = (void *)(long)ino;
+ affs_brelse(fh_bh);
-readdir_out:
+out_brelse_dir:
affs_brelse(dir_bh);
- affs_brelse(fh_bh);
+
+out_unlock_dir:
affs_unlock_dir(inode);
- return 0;
+ return error;
}
diff --git a/fs/affs/namei.c b/fs/affs/namei.c
index c36cbb4537a..6dae1ccd176 100644
--- a/fs/affs/namei.c
+++ b/fs/affs/namei.c
@@ -60,13 +60,13 @@ affs_get_toupper(struct super_block *sb)
* Note: the dentry argument is the parent dentry.
*/
static inline int
-__affs_hash_dentry(struct qstr *qstr, toupper_t toupper)
+__affs_hash_dentry(struct qstr *qstr, toupper_t toupper, bool notruncate)
{
const u8 *name = qstr->name;
unsigned long hash;
int i;
- i = affs_check_name(qstr->name, qstr->len);
+ i = affs_check_name(qstr->name, qstr->len, notruncate);
if (i)
return i;
@@ -82,16 +82,22 @@ __affs_hash_dentry(struct qstr *qstr, toupper_t toupper)
static int
affs_hash_dentry(const struct dentry *dentry, struct qstr *qstr)
{
- return __affs_hash_dentry(qstr, affs_toupper);
+ return __affs_hash_dentry(qstr, affs_toupper,
+ affs_nofilenametruncate(dentry));
+
}
+
static int
affs_intl_hash_dentry(const struct dentry *dentry, struct qstr *qstr)
{
- return __affs_hash_dentry(qstr, affs_intl_toupper);
+ return __affs_hash_dentry(qstr, affs_intl_toupper,
+ affs_nofilenametruncate(dentry));
+
}
static inline int __affs_compare_dentry(unsigned int len,
- const char *str, const struct qstr *name, toupper_t toupper)
+ const char *str, const struct qstr *name, toupper_t toupper,
+ bool notruncate)
{
const u8 *aname = str;
const u8 *bname = name->name;
@@ -101,7 +107,7 @@ static inline int __affs_compare_dentry(unsigned int len,
* must be valid. 'name' must be validated first.
*/
- if (affs_check_name(name->name, name->len))
+ if (affs_check_name(name->name, name->len, notruncate))
return 1;
/*
@@ -126,13 +132,18 @@ static int
affs_compare_dentry(const struct dentry *parent, const struct dentry *dentry,
unsigned int len, const char *str, const struct qstr *name)
{
- return __affs_compare_dentry(len, str, name, affs_toupper);
+
+ return __affs_compare_dentry(len, str, name, affs_toupper,
+ affs_nofilenametruncate(parent));
}
+
static int
affs_intl_compare_dentry(const struct dentry *parent, const struct dentry *dentry,
unsigned int len, const char *str, const struct qstr *name)
{
- return __affs_compare_dentry(len, str, name, affs_intl_toupper);
+ return __affs_compare_dentry(len, str, name, affs_intl_toupper,
+ affs_nofilenametruncate(parent));
+
}
/*
@@ -411,7 +422,10 @@ affs_rename(struct inode *old_dir, struct dentry *old_dentry,
(u32)old_dir->i_ino, (int)old_dentry->d_name.len, old_dentry->d_name.name,
(u32)new_dir->i_ino, (int)new_dentry->d_name.len, new_dentry->d_name.name);
- retval = affs_check_name(new_dentry->d_name.name,new_dentry->d_name.len);
+ retval = affs_check_name(new_dentry->d_name.name,
+ new_dentry->d_name.len,
+ affs_nofilenametruncate(old_dentry));
+
if (retval)
return retval;
diff --git a/fs/affs/super.c b/fs/affs/super.c
index 307453086c3..6d589f28bf9 100644
--- a/fs/affs/super.c
+++ b/fs/affs/super.c
@@ -128,7 +128,7 @@ static void init_once(void *foo)
inode_init_once(&ei->vfs_inode);
}
-static int init_inodecache(void)
+static int __init init_inodecache(void)
{
affs_inode_cachep = kmem_cache_create("affs_inode_cache",
sizeof(struct affs_inode_info),
@@ -163,7 +163,7 @@ static const struct super_operations affs_sops = {
};
enum {
- Opt_bs, Opt_mode, Opt_mufs, Opt_prefix, Opt_protect,
+ Opt_bs, Opt_mode, Opt_mufs, Opt_notruncate, Opt_prefix, Opt_protect,
Opt_reserved, Opt_root, Opt_setgid, Opt_setuid,
Opt_verbose, Opt_volume, Opt_ignore, Opt_err,
};
@@ -172,6 +172,7 @@ static const match_table_t tokens = {
{Opt_bs, "bs=%u"},
{Opt_mode, "mode=%o"},
{Opt_mufs, "mufs"},
+ {Opt_notruncate, "nofilenametruncate"},
{Opt_prefix, "prefix=%s"},
{Opt_protect, "protect"},
{Opt_reserved, "reserved=%u"},
@@ -233,6 +234,9 @@ parse_options(char *options, kuid_t *uid, kgid_t *gid, int *mode, int *reserved,
case Opt_mufs:
*mount_opts |= SF_MUFS;
break;
+ case Opt_notruncate:
+ *mount_opts |= SF_NO_TRUNCATE;
+ break;
case Opt_prefix:
*prefix = match_strdup(&args[0]);
if (!*prefix)
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-02 00:18:01 +0000