summaryrefslogtreecommitdiffstats
path: root/fs/hfsplus
diff options
context:
space:
mode:
Diffstat (limited to 'fs/hfsplus')
-rw-r--r--fs/hfsplus/attributes.c36
-rw-r--r--fs/hfsplus/bnode.c49
-rw-r--r--fs/hfsplus/btree.c2
-rw-r--r--fs/hfsplus/dir.c31
-rw-r--r--fs/hfsplus/extents.c17
-rw-r--r--fs/hfsplus/hfsplus_fs.h205
-rw-r--r--fs/hfsplus/hfsplus_raw.h1
-rw-r--r--fs/hfsplus/options.c9
-rw-r--r--fs/hfsplus/super.c3
-rw-r--r--fs/hfsplus/wrapper.c10
-rw-r--r--fs/hfsplus/xattr.c57
-rw-r--r--fs/hfsplus/xattr_security.c49
-rw-r--r--fs/hfsplus/xattr_trusted.c32
-rw-r--r--fs/hfsplus/xattr_user.c32
14 files changed, 297 insertions, 236 deletions
diff --git a/fs/hfsplus/attributes.c b/fs/hfsplus/attributes.c
index caf89a7be0a1..e5b221de7de6 100644
--- a/fs/hfsplus/attributes.c
+++ b/fs/hfsplus/attributes.c
@@ -54,14 +54,11 @@ int hfsplus_attr_build_key(struct super_block *sb, hfsplus_btree_key *key,
memset(key, 0, sizeof(struct hfsplus_attr_key));
key->attr.cnid = cpu_to_be32(cnid);
if (name) {
- len = strlen(name);
- if (len > HFSPLUS_ATTR_MAX_STRLEN) {
- pr_err("invalid xattr name's length\n");
- return -EINVAL;
- }
- hfsplus_asc2uni(sb,
+ int res = hfsplus_asc2uni(sb,
(struct hfsplus_unistr *)&key->attr.key_name,
- HFSPLUS_ATTR_MAX_STRLEN, name, len);
+ HFSPLUS_ATTR_MAX_STRLEN, name, strlen(name));
+ if (res)
+ return res;
len = be16_to_cpu(key->attr.key_name.length);
} else {
key->attr.key_name.length = 0;
@@ -82,31 +79,6 @@ int hfsplus_attr_build_key(struct super_block *sb, hfsplus_btree_key *key,
return 0;
}
-void hfsplus_attr_build_key_uni(hfsplus_btree_key *key,
- u32 cnid,
- struct hfsplus_attr_unistr *name)
-{
- int ustrlen;
-
- memset(key, 0, sizeof(struct hfsplus_attr_key));
- ustrlen = be16_to_cpu(name->length);
- key->attr.cnid = cpu_to_be32(cnid);
- key->attr.key_name.length = cpu_to_be16(ustrlen);
- ustrlen *= 2;
- memcpy(key->attr.key_name.unicode, name->unicode, ustrlen);
-
- /* The length of the key, as stored in key_len field, does not include
- * the size of the key_len field itself.
- * So, offsetof(hfsplus_attr_key, key_name) is a trick because
- * it takes into consideration key_len field (__be16) of
- * hfsplus_attr_key structure instead of length field (__be16) of
- * hfsplus_attr_unistr structure.
- */
- key->key_len =
- cpu_to_be16(offsetof(struct hfsplus_attr_key, key_name) +
- ustrlen);
-}
-
hfsplus_attr_entry *hfsplus_alloc_attr_entry(void)
{
return kmem_cache_alloc(hfsplus_attr_tree_cachep, GFP_KERNEL);
diff --git a/fs/hfsplus/bnode.c b/fs/hfsplus/bnode.c
index 11c860204520..759708fd9331 100644
--- a/fs/hfsplus/bnode.c
+++ b/fs/hfsplus/bnode.c
@@ -27,13 +27,13 @@ void hfs_bnode_read(struct hfs_bnode *node, void *buf, int off, int len)
pagep = node->page + (off >> PAGE_CACHE_SHIFT);
off &= ~PAGE_CACHE_MASK;
- l = min(len, (int)PAGE_CACHE_SIZE - off);
+ l = min_t(int, len, PAGE_CACHE_SIZE - off);
memcpy(buf, kmap(*pagep) + off, l);
kunmap(*pagep);
while ((len -= l) != 0) {
buf += l;
- l = min(len, (int)PAGE_CACHE_SIZE);
+ l = min_t(int, len, PAGE_CACHE_SIZE);
memcpy(buf, kmap(*++pagep), l);
kunmap(*pagep);
}
@@ -80,14 +80,14 @@ void hfs_bnode_write(struct hfs_bnode *node, void *buf, int off, int len)
pagep = node->page + (off >> PAGE_CACHE_SHIFT);
off &= ~PAGE_CACHE_MASK;
- l = min(len, (int)PAGE_CACHE_SIZE - off);
+ l = min_t(int, len, PAGE_CACHE_SIZE - off);
memcpy(kmap(*pagep) + off, buf, l);
set_page_dirty(*pagep);
kunmap(*pagep);
while ((len -= l) != 0) {
buf += l;
- l = min(len, (int)PAGE_CACHE_SIZE);
+ l = min_t(int, len, PAGE_CACHE_SIZE);
memcpy(kmap(*++pagep), buf, l);
set_page_dirty(*pagep);
kunmap(*pagep);
@@ -110,13 +110,13 @@ void hfs_bnode_clear(struct hfs_bnode *node, int off, int len)
pagep = node->page + (off >> PAGE_CACHE_SHIFT);
off &= ~PAGE_CACHE_MASK;
- l = min(len, (int)PAGE_CACHE_SIZE - off);
+ l = min_t(int, len, PAGE_CACHE_SIZE - off);
memset(kmap(*pagep) + off, 0, l);
set_page_dirty(*pagep);
kunmap(*pagep);
while ((len -= l) != 0) {
- l = min(len, (int)PAGE_CACHE_SIZE);
+ l = min_t(int, len, PAGE_CACHE_SIZE);
memset(kmap(*++pagep), 0, l);
set_page_dirty(*pagep);
kunmap(*pagep);
@@ -142,14 +142,14 @@ void hfs_bnode_copy(struct hfs_bnode *dst_node, int dst,
dst &= ~PAGE_CACHE_MASK;
if (src == dst) {
- l = min(len, (int)PAGE_CACHE_SIZE - src);
+ l = min_t(int, len, PAGE_CACHE_SIZE - src);
memcpy(kmap(*dst_page) + src, kmap(*src_page) + src, l);
kunmap(*src_page);
set_page_dirty(*dst_page);
kunmap(*dst_page);
while ((len -= l) != 0) {
- l = min(len, (int)PAGE_CACHE_SIZE);
+ l = min_t(int, len, PAGE_CACHE_SIZE);
memcpy(kmap(*++dst_page), kmap(*++src_page), l);
kunmap(*src_page);
set_page_dirty(*dst_page);
@@ -251,7 +251,7 @@ void hfs_bnode_move(struct hfs_bnode *node, int dst, int src, int len)
dst &= ~PAGE_CACHE_MASK;
if (src == dst) {
- l = min(len, (int)PAGE_CACHE_SIZE - src);
+ l = min_t(int, len, PAGE_CACHE_SIZE - src);
memmove(kmap(*dst_page) + src,
kmap(*src_page) + src, l);
kunmap(*src_page);
@@ -259,7 +259,7 @@ void hfs_bnode_move(struct hfs_bnode *node, int dst, int src, int len)
kunmap(*dst_page);
while ((len -= l) != 0) {
- l = min(len, (int)PAGE_CACHE_SIZE);
+ l = min_t(int, len, PAGE_CACHE_SIZE);
memmove(kmap(*++dst_page),
kmap(*++src_page), l);
kunmap(*src_page);
@@ -386,9 +386,8 @@ struct hfs_bnode *hfs_bnode_findhash(struct hfs_btree *tree, u32 cnid)
struct hfs_bnode *node;
if (cnid >= tree->node_count) {
- pr_err("request for non-existent node "
- "%d in B*Tree\n",
- cnid);
+ pr_err("request for non-existent node %d in B*Tree\n",
+ cnid);
return NULL;
}
@@ -409,9 +408,8 @@ static struct hfs_bnode *__hfs_bnode_create(struct hfs_btree *tree, u32 cnid)
loff_t off;
if (cnid >= tree->node_count) {
- pr_err("request for non-existent node "
- "%d in B*Tree\n",
- cnid);
+ pr_err("request for non-existent node %d in B*Tree\n",
+ cnid);
return NULL;
}
@@ -602,7 +600,7 @@ struct hfs_bnode *hfs_bnode_create(struct hfs_btree *tree, u32 num)
pagep = node->page;
memset(kmap(*pagep) + node->page_offset, 0,
- min((int)PAGE_CACHE_SIZE, (int)tree->node_size));
+ min_t(int, PAGE_CACHE_SIZE, tree->node_size));
set_page_dirty(*pagep);
kunmap(*pagep);
for (i = 1; i < tree->pages_per_bnode; i++) {
@@ -648,8 +646,8 @@ void hfs_bnode_put(struct hfs_bnode *node)
if (test_bit(HFS_BNODE_DELETED, &node->flags)) {
hfs_bnode_unhash(node);
spin_unlock(&tree->hash_lock);
- hfs_bnode_clear(node, 0,
- PAGE_CACHE_SIZE * tree->pages_per_bnode);
+ if (hfs_bnode_need_zeroout(tree))
+ hfs_bnode_clear(node, 0, tree->node_size);
hfs_bmap_free(node);
hfs_bnode_free(node);
return;
@@ -658,3 +656,16 @@ void hfs_bnode_put(struct hfs_bnode *node)
}
}
+/*
+ * Unused nodes have to be zeroed if this is the catalog tree and
+ * a corresponding flag in the volume header is set.
+ */
+bool hfs_bnode_need_zeroout(struct hfs_btree *tree)
+{
+ struct super_block *sb = tree->inode->i_sb;
+ struct hfsplus_sb_info *sbi = HFSPLUS_SB(sb);
+ const u32 volume_attr = be32_to_cpu(sbi->s_vhdr->attributes);
+
+ return tree->cnid == HFSPLUS_CAT_CNID &&
+ volume_attr & HFSPLUS_VOL_UNUSED_NODE_FIX;
+}
diff --git a/fs/hfsplus/btree.c b/fs/hfsplus/btree.c
index 0fcec8b2a90b..3345c7553edc 100644
--- a/fs/hfsplus/btree.c
+++ b/fs/hfsplus/btree.c
@@ -358,7 +358,7 @@ struct hfs_bnode *hfs_bmap_alloc(struct hfs_btree *tree)
u32 count;
int res;
- res = hfsplus_file_extend(inode);
+ res = hfsplus_file_extend(inode, hfs_bnode_need_zeroout(tree));
if (res)
return ERR_PTR(res);
hip->phys_size = inode->i_size =
diff --git a/fs/hfsplus/dir.c b/fs/hfsplus/dir.c
index bdec66522de3..610a3260bef1 100644
--- a/fs/hfsplus/dir.c
+++ b/fs/hfsplus/dir.c
@@ -12,6 +12,7 @@
#include <linux/fs.h>
#include <linux/slab.h>
#include <linux/random.h>
+#include <linux/nls.h>
#include "hfsplus_fs.h"
#include "hfsplus_raw.h"
@@ -127,7 +128,7 @@ static int hfsplus_readdir(struct file *file, struct dir_context *ctx)
struct inode *inode = file_inode(file);
struct super_block *sb = inode->i_sb;
int len, err;
- char strbuf[HFSPLUS_MAX_STRLEN + 1];
+ char *strbuf;
hfsplus_cat_entry entry;
struct hfs_find_data fd;
struct hfsplus_readdir_data *rd;
@@ -139,6 +140,11 @@ static int hfsplus_readdir(struct file *file, struct dir_context *ctx)
err = hfs_find_init(HFSPLUS_SB(sb)->cat_tree, &fd);
if (err)
return err;
+ strbuf = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_MAX_STRLEN + 1, GFP_KERNEL);
+ if (!strbuf) {
+ err = -ENOMEM;
+ goto out;
+ }
hfsplus_cat_build_key(sb, fd.search_key, inode->i_ino, NULL);
err = hfs_brec_find(&fd, hfs_find_rec_by_key);
if (err)
@@ -193,7 +199,7 @@ static int hfsplus_readdir(struct file *file, struct dir_context *ctx)
hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
fd.entrylength);
type = be16_to_cpu(entry.type);
- len = HFSPLUS_MAX_STRLEN;
+ len = NLS_MAX_CHARSET_SIZE * HFSPLUS_MAX_STRLEN;
err = hfsplus_uni2asc(sb, &fd.key->cat.name, strbuf, &len);
if (err)
goto out;
@@ -212,13 +218,31 @@ static int hfsplus_readdir(struct file *file, struct dir_context *ctx)
be32_to_cpu(entry.folder.id), DT_DIR))
break;
} else if (type == HFSPLUS_FILE) {
+ u16 mode;
+ unsigned type = DT_UNKNOWN;
+
if (fd.entrylength < sizeof(struct hfsplus_cat_file)) {
pr_err("small file entry\n");
err = -EIO;
goto out;
}
+
+ mode = be16_to_cpu(entry.file.permissions.mode);
+ if (S_ISREG(mode))
+ type = DT_REG;
+ else if (S_ISLNK(mode))
+ type = DT_LNK;
+ else if (S_ISFIFO(mode))
+ type = DT_FIFO;
+ else if (S_ISCHR(mode))
+ type = DT_CHR;
+ else if (S_ISBLK(mode))
+ type = DT_BLK;
+ else if (S_ISSOCK(mode))
+ type = DT_SOCK;
+
if (!dir_emit(ctx, strbuf, len,
- be32_to_cpu(entry.file.id), DT_REG))
+ be32_to_cpu(entry.file.id), type))
break;
} else {
pr_err("bad catalog entry type\n");
@@ -246,6 +270,7 @@ next:
}
memcpy(&rd->key, fd.key, sizeof(struct hfsplus_cat_key));
out:
+ kfree(strbuf);
hfs_find_exit(&fd);
return err;
}
diff --git a/fs/hfsplus/extents.c b/fs/hfsplus/extents.c
index a7aafb35b624..feca524ce2a5 100644
--- a/fs/hfsplus/extents.c
+++ b/fs/hfsplus/extents.c
@@ -235,7 +235,7 @@ int hfsplus_get_block(struct inode *inode, sector_t iblock,
if (iblock > hip->fs_blocks || !create)
return -EIO;
if (ablock >= hip->alloc_blocks) {
- res = hfsplus_file_extend(inode);
+ res = hfsplus_file_extend(inode, false);
if (res)
return res;
}
@@ -425,7 +425,7 @@ int hfsplus_free_fork(struct super_block *sb, u32 cnid,
return res;
}
-int hfsplus_file_extend(struct inode *inode)
+int hfsplus_file_extend(struct inode *inode, bool zeroout)
{
struct super_block *sb = inode->i_sb;
struct hfsplus_sb_info *sbi = HFSPLUS_SB(sb);
@@ -436,10 +436,9 @@ int hfsplus_file_extend(struct inode *inode)
if (sbi->alloc_file->i_size * 8 <
sbi->total_blocks - sbi->free_blocks + 8) {
/* extend alloc file */
- pr_err("extend alloc file! "
- "(%llu,%u,%u)\n",
- sbi->alloc_file->i_size * 8,
- sbi->total_blocks, sbi->free_blocks);
+ pr_err("extend alloc file! (%llu,%u,%u)\n",
+ sbi->alloc_file->i_size * 8,
+ sbi->total_blocks, sbi->free_blocks);
return -ENOSPC;
}
@@ -463,6 +462,12 @@ int hfsplus_file_extend(struct inode *inode)
}
}
+ if (zeroout) {
+ res = sb_issue_zeroout(sb, start, len, GFP_NOFS);
+ if (res)
+ goto out;
+ }
+
hfs_dbg(EXTENT, "extend %lu: %u,%u\n", inode->i_ino, start, len);
if (hip->alloc_blocks <= hip->first_blocks) {
diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h
index 83dc29286b10..eb5e059f481a 100644
--- a/fs/hfsplus/hfsplus_fs.h
+++ b/fs/hfsplus/hfsplus_fs.h
@@ -369,114 +369,119 @@ typedef int (*search_strategy_t)(struct hfs_bnode *,
/* attributes.c */
int __init hfsplus_create_attr_tree_cache(void);
void hfsplus_destroy_attr_tree_cache(void);
+int hfsplus_attr_bin_cmp_key(const hfsplus_btree_key *k1,
+ const hfsplus_btree_key *k2);
+int hfsplus_attr_build_key(struct super_block *sb, hfsplus_btree_key *key,
+ u32 cnid, const char *name);
hfsplus_attr_entry *hfsplus_alloc_attr_entry(void);
-void hfsplus_destroy_attr_entry(hfsplus_attr_entry *entry_p);
-int hfsplus_attr_bin_cmp_key(const hfsplus_btree_key *,
- const hfsplus_btree_key *);
-int hfsplus_attr_build_key(struct super_block *, hfsplus_btree_key *,
- u32, const char *);
-void hfsplus_attr_build_key_uni(hfsplus_btree_key *key,
- u32 cnid,
- struct hfsplus_attr_unistr *name);
-int hfsplus_find_attr(struct super_block *, u32,
- const char *, struct hfs_find_data *);
+void hfsplus_destroy_attr_entry(hfsplus_attr_entry *entry);
+int hfsplus_find_attr(struct super_block *sb, u32 cnid, const char *name,
+ struct hfs_find_data *fd);
int hfsplus_attr_exists(struct inode *inode, const char *name);
-int hfsplus_create_attr(struct inode *, const char *, const void *, size_t);
-int hfsplus_delete_attr(struct inode *, const char *);
+int hfsplus_create_attr(struct inode *inode, const char *name,
+ const void *value, size_t size);
+int hfsplus_delete_attr(struct inode *inode, const char *name);
int hfsplus_delete_all_attrs(struct inode *dir, u32 cnid);
/* bitmap.c */
-int hfsplus_block_allocate(struct super_block *, u32, u32, u32 *);
-int hfsplus_block_free(struct super_block *, u32, u32);
+int hfsplus_block_allocate(struct super_block *sb, u32 size, u32 offset,
+ u32 *max);
+int hfsplus_block_free(struct super_block *sb, u32 offset, u32 count);
/* btree.c */
-u32 hfsplus_calc_btree_clump_size(u32, u32, u64, int);
-struct hfs_btree *hfs_btree_open(struct super_block *, u32);
-void hfs_btree_close(struct hfs_btree *);
-int hfs_btree_write(struct hfs_btree *);
-struct hfs_bnode *hfs_bmap_alloc(struct hfs_btree *);
-void hfs_bmap_free(struct hfs_bnode *);
+u32 hfsplus_calc_btree_clump_size(u32 block_size, u32 node_size, u64 sectors,
+ int file_id);
+struct hfs_btree *hfs_btree_open(struct super_block *sb, u32 id);
+void hfs_btree_close(struct hfs_btree *tree);
+int hfs_btree_write(struct hfs_btree *tree);
+struct hfs_bnode *hfs_bmap_alloc(struct hfs_btree *tree);
+void hfs_bmap_free(struct hfs_bnode *node);
/* bnode.c */
-void hfs_bnode_read(struct hfs_bnode *, void *, int, int);
-u16 hfs_bnode_read_u16(struct hfs_bnode *, int);
-u8 hfs_bnode_read_u8(struct hfs_bnode *, int);
-void hfs_bnode_read_key(struct hfs_bnode *, void *, int);
-void hfs_bnode_write(struct hfs_bnode *, void *, int, int);
-void hfs_bnode_write_u16(struct hfs_bnode *, int, u16);
-void hfs_bnode_clear(struct hfs_bnode *, int, int);
-void hfs_bnode_copy(struct hfs_bnode *, int,
- struct hfs_bnode *, int, int);
-void hfs_bnode_move(struct hfs_bnode *, int, int, int);
-void hfs_bnode_dump(struct hfs_bnode *);
-void hfs_bnode_unlink(struct hfs_bnode *);
-struct hfs_bnode *hfs_bnode_findhash(struct hfs_btree *, u32);
-struct hfs_bnode *hfs_bnode_find(struct hfs_btree *, u32);
-void hfs_bnode_unhash(struct hfs_bnode *);
-void hfs_bnode_free(struct hfs_bnode *);
-struct hfs_bnode *hfs_bnode_create(struct hfs_btree *, u32);
-void hfs_bnode_get(struct hfs_bnode *);
-void hfs_bnode_put(struct hfs_bnode *);
+void hfs_bnode_read(struct hfs_bnode *node, void *buf, int off, int len);
+u16 hfs_bnode_read_u16(struct hfs_bnode *node, int off);
+u8 hfs_bnode_read_u8(struct hfs_bnode *node, int off);
+void hfs_bnode_read_key(struct hfs_bnode *node, void *key, int off);
+void hfs_bnode_write(struct hfs_bnode *node, void *buf, int off, int len);
+void hfs_bnode_write_u16(struct hfs_bnode *node, int off, u16 data);
+void hfs_bnode_clear(struct hfs_bnode *node, int off, int len);
+void hfs_bnode_copy(struct hfs_bnode *dst_node, int dst,
+ struct hfs_bnode *src_node, int src, int len);
+void hfs_bnode_move(struct hfs_bnode *node, int dst, int src, int len);
+void hfs_bnode_dump(struct hfs_bnode *node);
+void hfs_bnode_unlink(struct hfs_bnode *node);
+struct hfs_bnode *hfs_bnode_findhash(struct hfs_btree *tree, u32 cnid);
+void hfs_bnode_unhash(struct hfs_bnode *node);
+struct hfs_bnode *hfs_bnode_find(struct hfs_btree *tree, u32 num);
+void hfs_bnode_free(struct hfs_bnode *node);
+struct hfs_bnode *hfs_bnode_create(struct hfs_btree *tree, u32 num);
+void hfs_bnode_get(struct hfs_bnode *node);
+void hfs_bnode_put(struct hfs_bnode *node);
+bool hfs_bnode_need_zeroout(struct hfs_btree *tree);
/* brec.c */
-u16 hfs_brec_lenoff(struct hfs_bnode *, u16, u16 *);
-u16 hfs_brec_keylen(struct hfs_bnode *, u16);
-int hfs_brec_insert(struct hfs_find_data *, void *, int);
-int hfs_brec_remove(struct hfs_find_data *);
+u16 hfs_brec_lenoff(struct hfs_bnode *node, u16 rec, u16 *off);
+u16 hfs_brec_keylen(struct hfs_bnode *node, u16 rec);
+int hfs_brec_insert(struct hfs_find_data *fd, void *entry, int entry_len);
+int hfs_brec_remove(struct hfs_find_data *fd);
/* bfind.c */
-int hfs_find_init(struct hfs_btree *, struct hfs_find_data *);
-void hfs_find_exit(struct hfs_find_data *);
-int hfs_find_1st_rec_by_cnid(struct hfs_bnode *,
- struct hfs_find_data *,
- int *, int *, int *);
-int hfs_find_rec_by_key(struct hfs_bnode *,
- struct hfs_find_data *,
- int *, int *, int *);
-int __hfs_brec_find(struct hfs_bnode *, struct hfs_find_data *,
- search_strategy_t);
-int hfs_brec_find(struct hfs_find_data *, search_strategy_t);
-int hfs_brec_read(struct hfs_find_data *, void *, int);
-int hfs_brec_goto(struct hfs_find_data *, int);
+int hfs_find_init(struct hfs_btree *tree, struct hfs_find_data *fd);
+void hfs_find_exit(struct hfs_find_data *fd);
+int hfs_find_1st_rec_by_cnid(struct hfs_bnode *bnode, struct hfs_find_data *fd,
+ int *begin, int *end, int *cur_rec);
+int hfs_find_rec_by_key(struct hfs_bnode *bnode, struct hfs_find_data *fd,
+ int *begin, int *end, int *cur_rec);
+int __hfs_brec_find(struct hfs_bnode *bnode, struct hfs_find_data *fd,
+ search_strategy_t rec_found);
+int hfs_brec_find(struct hfs_find_data *fd, search_strategy_t do_key_compare);
+int hfs_brec_read(struct hfs_find_data *fd, void *rec, int rec_len);
+int hfs_brec_goto(struct hfs_find_data *fd, int cnt);
/* catalog.c */
-int hfsplus_cat_case_cmp_key(const hfsplus_btree_key *,
- const hfsplus_btree_key *);
-int hfsplus_cat_bin_cmp_key(const hfsplus_btree_key *,
- const hfsplus_btree_key *);
-void hfsplus_cat_build_key(struct super_block *sb,
- hfsplus_btree_key *, u32, struct qstr *);
-int hfsplus_find_cat(struct super_block *, u32, struct hfs_find_data *);
-int hfsplus_create_cat(u32, struct inode *, struct qstr *, struct inode *);
-int hfsplus_delete_cat(u32, struct inode *, struct qstr *);
-int hfsplus_rename_cat(u32, struct inode *, struct qstr *,
- struct inode *, struct qstr *);
+int hfsplus_cat_case_cmp_key(const hfsplus_btree_key *k1,
+ const hfsplus_btree_key *k2);
+int hfsplus_cat_bin_cmp_key(const hfsplus_btree_key *k1,
+ const hfsplus_btree_key *k2);
+void hfsplus_cat_build_key(struct super_block *sb, hfsplus_btree_key *key,
+ u32 parent, struct qstr *str);
void hfsplus_cat_set_perms(struct inode *inode, struct hfsplus_perm *perms);
+int hfsplus_find_cat(struct super_block *sb, u32 cnid,
+ struct hfs_find_data *fd);
+int hfsplus_create_cat(u32 cnid, struct inode *dir, struct qstr *str,
+ struct inode *inode);
+int hfsplus_delete_cat(u32 cnid, struct inode *dir, struct qstr *str);
+int hfsplus_rename_cat(u32 cnid, struct inode *src_dir, struct qstr *src_name,
+ struct inode *dst_dir, struct qstr *dst_name);
/* dir.c */
extern const struct inode_operations hfsplus_dir_inode_operations;
extern const struct file_operations hfsplus_dir_operations;
/* extents.c */
-int hfsplus_ext_cmp_key(const hfsplus_btree_key *, const hfsplus_btree_key *);
-int hfsplus_ext_write_extent(struct inode *);
-int hfsplus_get_block(struct inode *, sector_t, struct buffer_head *, int);
-int hfsplus_free_fork(struct super_block *, u32,
- struct hfsplus_fork_raw *, int);
-int hfsplus_file_extend(struct inode *);
-void hfsplus_file_truncate(struct inode *);
+int hfsplus_ext_cmp_key(const hfsplus_btree_key *k1,
+ const hfsplus_btree_key *k2);
+int hfsplus_ext_write_extent(struct inode *inode);
+int hfsplus_get_block(struct inode *inode, sector_t iblock,
+ struct buffer_head *bh_result, int create);
+int hfsplus_free_fork(struct super_block *sb, u32 cnid,
+ struct hfsplus_fork_raw *fork, int type);
+int hfsplus_file_extend(struct inode *inode, bool zeroout);
+void hfsplus_file_truncate(struct inode *inode);
/* inode.c */
extern const struct address_space_operations hfsplus_aops;
extern const struct address_space_operations hfsplus_btree_aops;
extern const struct dentry_operations hfsplus_dentry_operations;
-void hfsplus_inode_read_fork(struct inode *, struct hfsplus_fork_raw *);
-void hfsplus_inode_write_fork(struct inode *, struct hfsplus_fork_raw *);
-int hfsplus_cat_read_inode(struct inode *, struct hfs_find_data *);
-int hfsplus_cat_write_inode(struct inode *);
-struct inode *hfsplus_new_inode(struct super_block *, umode_t);
-void hfsplus_delete_inode(struct inode *);
+struct inode *hfsplus_new_inode(struct super_block *sb, umode_t mode);
+void hfsplus_delete_inode(struct inode *inode);
+void hfsplus_inode_read_fork(struct inode *inode,
+ struct hfsplus_fork_raw *fork);
+void hfsplus_inode_write_fork(struct inode *inode,
+ struct hfsplus_fork_raw *fork);
+int hfsplus_cat_read_inode(struct inode *inode, struct hfs_find_data *fd);
+int hfsplus_cat_write_inode(struct inode *inode);
int hfsplus_file_fsync(struct file *file, loff_t start, loff_t end,
int datasync);
@@ -484,13 +489,17 @@ int hfsplus_file_fsync(struct file *file, loff_t start, loff_t end,
long hfsplus_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
/* options.c */
-int hfsplus_parse_options(char *, struct hfsplus_sb_info *);
+void hfsplus_fill_defaults(struct hfsplus_sb_info *opts);
int hfsplus_parse_options_remount(char *input, int *force);
-void hfsplus_fill_defaults(struct hfsplus_sb_info *);
-int hfsplus_show_options(struct seq_file *, struct dentry *);
+int hfsplus_parse_options(char *input, struct hfsplus_sb_info *sbi);
+int hfsplus_show_options(struct seq_file *seq, struct dentry *root);
+
+/* part_tbl.c */
+int hfs_part_find(struct super_block *sb, sector_t *part_start,
+ sector_t *part_size);
/* super.c */
-struct inode *hfsplus_iget(struct super_block *, unsigned long);
+struct inode *hfsplus_iget(struct super_block *sb, unsigned long ino);
void hfsplus_mark_mdb_dirty(struct super_block *sb);
/* tables.c */
@@ -499,23 +508,23 @@ extern u16 hfsplus_decompose_table[];
extern u16 hfsplus_compose_table[];
/* unicode.c */
-int hfsplus_strcasecmp(const struct hfsplus_unistr *,
- const struct hfsplus_unistr *);
-int hfsplus_strcmp(const struct hfsplus_unistr *,
- const struct hfsplus_unistr *);
-int hfsplus_uni2asc(struct super_block *,
- const struct hfsplus_unistr *, char *, int *);
-int hfsplus_asc2uni(struct super_block *,
- struct hfsplus_unistr *, int, const char *, int);
+int hfsplus_strcasecmp(const struct hfsplus_unistr *s1,
+ const struct hfsplus_unistr *s2);
+int hfsplus_strcmp(const struct hfsplus_unistr *s1,
+ const struct hfsplus_unistr *s2);
+int hfsplus_uni2asc(struct super_block *sb, const struct hfsplus_unistr *ustr,
+ char *astr, int *len_p);
+int hfsplus_asc2uni(struct super_block *sb, struct hfsplus_unistr *ustr,
+ int max_unistr_len, const char *astr, int len);
int hfsplus_hash_dentry(const struct dentry *dentry, struct qstr *str);
-int hfsplus_compare_dentry(const struct dentry *parent, const struct dentry *dentry,
- unsigned int len, const char *str, const struct qstr *name);
+int hfsplus_compare_dentry(const struct dentry *parent,
+ const struct dentry *dentry, unsigned int len,
+ const char *str, const struct qstr *name);
/* wrapper.c */
-int hfsplus_read_wrapper(struct super_block *);
-int hfs_part_find(struct super_block *, sector_t *, sector_t *);
-int hfsplus_submit_bio(struct super_block *sb, sector_t sector,
- void *buf, void **data, int rw);
+int hfsplus_submit_bio(struct super_block *sb, sector_t sector, void *buf,
+ void **data, int rw);
+int hfsplus_read_wrapper(struct super_block *sb);
/* time macros */
#define __hfsp_mt2ut(t) (be32_to_cpu(t) - 2082844800U)
diff --git a/fs/hfsplus/hfsplus_raw.h b/fs/hfsplus/hfsplus_raw.h
index 5a126828d85e..8298d0985f81 100644
--- a/fs/hfsplus/hfsplus_raw.h
+++ b/fs/hfsplus/hfsplus_raw.h
@@ -144,6 +144,7 @@ struct hfsplus_vh {
#define HFSPLUS_VOL_NODEID_REUSED (1 << 12)
#define HFSPLUS_VOL_JOURNALED (1 << 13)
#define HFSPLUS_VOL_SOFTLOCK (1 << 15)
+#define HFSPLUS_VOL_UNUSED_NODE_FIX (1 << 31)
/* HFS+ BTree node descriptor */
struct hfs_bnode_desc {
diff --git a/fs/hfsplus/options.c b/fs/hfsplus/options.c
index 68537e8b7a09..c90b72ee676d 100644
--- a/fs/hfsplus/options.c
+++ b/fs/hfsplus/options.c
@@ -173,9 +173,8 @@ int hfsplus_parse_options(char *input, struct hfsplus_sb_info *sbi)
if (p)
sbi->nls = load_nls(p);
if (!sbi->nls) {
- pr_err("unable to load "
- "nls mapping \"%s\"\n",
- p);
+ pr_err("unable to load nls mapping \"%s\"\n",
+ p);
kfree(p);
return 0;
}
@@ -232,8 +231,8 @@ int hfsplus_show_options(struct seq_file *seq, struct dentry *root)
if (sbi->nls)
seq_printf(seq, ",nls=%s", sbi->nls->charset);
if (test_bit(HFSPLUS_SB_NODECOMPOSE, &sbi->flags))
- seq_printf(seq, ",nodecompose");
+ seq_puts(seq, ",nodecompose");
if (test_bit(HFSPLUS_SB_NOBARRIER, &sbi->flags))
- seq_printf(seq, ",nobarrier");
+ seq_puts(seq, ",nobarrier");
return 0;
}
diff --git a/fs/hfsplus/super.c b/fs/hfsplus/super.c
index a513d2d36be9..4cf2024b87da 100644
--- a/fs/hfsplus/super.c
+++ b/fs/hfsplus/super.c
@@ -131,9 +131,10 @@ static int hfsplus_system_write_inode(struct inode *inode)
hfsplus_inode_write_fork(inode, fork);
if (tree) {
int err = hfs_btree_write(tree);
+
if (err) {
pr_err("b-tree write err: %d, ino %lu\n",
- err, inode->i_ino);
+ err, inode->i_ino);
return err;
}
}
diff --git a/fs/hfsplus/wrapper.c b/fs/hfsplus/wrapper.c
index 3f999649587f..cc6235671437 100644
--- a/fs/hfsplus/wrapper.c
+++ b/fs/hfsplus/wrapper.c
@@ -24,8 +24,8 @@ struct hfsplus_wd {
u16 embed_count;
};
-/*
- * hfsplus_submit_bio - Perfrom block I/O
+/**
+ * hfsplus_submit_bio - Perform block I/O
* @sb: super block of volume for I/O
* @sector: block to read or write, for blocks of HFSPLUS_SECTOR_SIZE bytes
* @buf: buffer for I/O
@@ -231,10 +231,8 @@ reread:
if (blocksize < HFSPLUS_SECTOR_SIZE || ((blocksize - 1) & blocksize))
goto out_free_backup_vhdr;
sbi->alloc_blksz = blocksize;
- sbi->alloc_blksz_shift = 0;
- while ((blocksize >>= 1) != 0)
- sbi->alloc_blksz_shift++;
- blocksize = min(sbi->alloc_blksz, (u32)PAGE_SIZE);
+ sbi->alloc_blksz_shift = ilog2(blocksize);
+ blocksize = min_t(u32, sbi->alloc_blksz, PAGE_SIZE);
/*
* Align block size to block offset.
diff --git a/fs/hfsplus/xattr.c b/fs/hfsplus/xattr.c
index 4e27edc082a4..d98094a9f476 100644
--- a/fs/hfsplus/xattr.c
+++ b/fs/hfsplus/xattr.c
@@ -8,6 +8,7 @@
#include "hfsplus_fs.h"
#include <linux/posix_acl_xattr.h>
+#include <linux/nls.h>
#include "xattr.h"
#include "acl.h"
@@ -66,10 +67,10 @@ static void hfsplus_init_header_node(struct inode *attr_file,
char *bmp;
u32 used_nodes;
u32 used_bmp_bytes;
- loff_t tmp;
+ u64 tmp;
hfs_dbg(ATTR_MOD, "init_hdr_attr_file: clump %u, node_size %u\n",
- clump_size, node_size);
+ clump_size, node_size);
/* The end of the node contains list of record offsets */
rec_offsets = (__be16 *)(buf + node_size);
@@ -195,7 +196,7 @@ check_attr_tree_state_again:
}
while (hip->alloc_blocks < hip->clump_blocks) {
- err = hfsplus_file_extend(attr_file);
+ err = hfsplus_file_extend(attr_file, false);
if (unlikely(err)) {
pr_err("failed to extend attributes file\n");
goto end_attr_file_creation;
@@ -645,8 +646,7 @@ ssize_t hfsplus_listxattr(struct dentry *dentry, char *buffer, size_t size)
struct hfs_find_data fd;
u16 key_len = 0;
struct hfsplus_attr_key attr_key;
- char strbuf[HFSPLUS_ATTR_MAX_STRLEN +
- XATTR_MAC_OSX_PREFIX_LEN + 1] = {0};
+ char *strbuf;
int xattr_name_len;
if ((!S_ISREG(inode->i_mode) &&
@@ -666,6 +666,13 @@ ssize_t hfsplus_listxattr(struct dentry *dentry, char *buffer, size_t size)
return err;
}
+ strbuf = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN +
+ XATTR_MAC_OSX_PREFIX_LEN + 1, GFP_KERNEL);
+ if (!strbuf) {
+ res = -ENOMEM;
+ goto out;
+ }
+
err = hfsplus_find_attr(inode->i_sb, inode->i_ino, NULL, &fd);
if (err) {
if (err == -ENOENT) {
@@ -692,7 +699,7 @@ ssize_t hfsplus_listxattr(struct dentry *dentry, char *buffer, size_t size)
if (be32_to_cpu(attr_key.cnid) != inode->i_ino)
goto end_listxattr;
- xattr_name_len = HFSPLUS_ATTR_MAX_STRLEN;
+ xattr_name_len = NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN;
if (hfsplus_uni2asc(inode->i_sb,
(const struct hfsplus_unistr *)&fd.key->attr.key_name,
strbuf, &xattr_name_len)) {
@@ -718,6 +725,8 @@ ssize_t hfsplus_listxattr(struct dentry *dentry, char *buffer, size_t size)
}
end_listxattr:
+ kfree(strbuf);
+out:
hfs_find_exit(&fd);
return res;
}
@@ -797,47 +806,55 @@ end_removexattr:
static int hfsplus_osx_getxattr(struct dentry *dentry, const char *name,
void *buffer, size_t size, int type)
{
- char xattr_name[HFSPLUS_ATTR_MAX_STRLEN +
- XATTR_MAC_OSX_PREFIX_LEN + 1] = {0};
- size_t len = strlen(name);
+ char *xattr_name;
+ int res;
if (!strcmp(name, ""))
return -EINVAL;
- if (len > HFSPLUS_ATTR_MAX_STRLEN)
- return -EOPNOTSUPP;
-
/*
* Don't allow retrieving properly prefixed attributes
* by prepending them with "osx."
*/
if (is_known_namespace(name))
return -EOPNOTSUPP;
+ xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN
+ + XATTR_MAC_OSX_PREFIX_LEN + 1, GFP_KERNEL);
+ if (!xattr_name)
+ return -ENOMEM;
+ strcpy(xattr_name, XATTR_MAC_OSX_PREFIX);
+ strcpy(xattr_name + XATTR_MAC_OSX_PREFIX_LEN, name);
- return hfsplus_getxattr(dentry, xattr_name, buffer, size);
+ res = hfsplus_getxattr(dentry, xattr_name, buffer, size);
+ kfree(xattr_name);
+ return res;
}
static int hfsplus_osx_setxattr(struct dentry *dentry, const char *name,
const void *buffer, size_t size, int flags, int type)
{
- char xattr_name[HFSPLUS_ATTR_MAX_STRLEN +
- XATTR_MAC_OSX_PREFIX_LEN + 1] = {0};
- size_t len = strlen(name);
+ char *xattr_name;
+ int res;
if (!strcmp(name, ""))
return -EINVAL;
- if (len > HFSPLUS_ATTR_MAX_STRLEN)
- return -EOPNOTSUPP;
-
/*
* Don't allow setting properly prefixed attributes
* by prepending them with "osx."
*/
if (is_known_namespace(name))
return -EOPNOTSUPP;
+ xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN
+ + XATTR_MAC_OSX_PREFIX_LEN + 1, GFP_KERNEL);
+ if (!xattr_name)
+ return -ENOMEM;
+ strcpy(xattr_name, XATTR_MAC_OSX_PREFIX);
+ strcpy(xattr_name + XATTR_MAC_OSX_PREFIX_LEN, name);
- return hfsplus_setxattr(dentry, xattr_name, buffer, size, flags);
+ res = hfsplus_setxattr(dentry, xattr_name, buffer, size, flags);
+ kfree(xattr_name);
+ return res;
}
static size_t hfsplus_osx_listxattr(struct dentry *dentry, char *list,
diff --git a/fs/hfsplus/xattr_security.c b/fs/hfsplus/xattr_security.c
index 00722765ea79..6ec5e107691f 100644
--- a/fs/hfsplus/xattr_security.c
+++ b/fs/hfsplus/xattr_security.c
@@ -7,6 +7,8 @@
*/
#include <linux/security.h>
+#include <linux/nls.h>
+
#include "hfsplus_fs.h"
#include "xattr.h"
#include "acl.h"
@@ -14,37 +16,43 @@
static int hfsplus_security_getxattr(struct dentry *dentry, const char *name,
void *buffer, size_t size, int type)
{
- char xattr_name[HFSPLUS_ATTR_MAX_STRLEN + 1] = {0};
- size_t len = strlen(name);
+ char *xattr_name;
+ int res;
if (!strcmp(name, ""))
return -EINVAL;
- if (len + XATTR_SECURITY_PREFIX_LEN > HFSPLUS_ATTR_MAX_STRLEN)
- return -EOPNOTSUPP;
-
+ xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN + 1,
+ GFP_KERNEL);
+ if (!xattr_name)
+ return -ENOMEM;
strcpy(xattr_name, XATTR_SECURITY_PREFIX);
strcpy(xattr_name + XATTR_SECURITY_PREFIX_LEN, name);
- return hfsplus_getxattr(dentry, xattr_name, buffer, size);
+ res = hfsplus_getxattr(dentry, xattr_name, buffer, size);
+ kfree(xattr_name);
+ return res;
}
static int hfsplus_security_setxattr(struct dentry *dentry, const char *name,
const void *buffer, size_t size, int flags, int type)
{
- char xattr_name[HFSPLUS_ATTR_MAX_STRLEN + 1] = {0};
- size_t len = strlen(name);
+ char *xattr_name;
+ int res;
if (!strcmp(name, ""))
return -EINVAL;
- if (len + XATTR_SECURITY_PREFIX_LEN > HFSPLUS_ATTR_MAX_STRLEN)
- return -EOPNOTSUPP;
-
+ xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN + 1,
+ GFP_KERNEL);
+ if (!xattr_name)
+ return -ENOMEM;
strcpy(xattr_name, XATTR_SECURITY_PREFIX);
strcpy(xattr_name + XATTR_SECURITY_PREFIX_LEN, name);
- return hfsplus_setxattr(dentry, xattr_name, buffer, size, flags);
+ res = hfsplus_setxattr(dentry, xattr_name, buffer, size, flags);
+ kfree(xattr_name);
+ return res;
}
static size_t hfsplus_security_listxattr(struct dentry *dentry, char *list,
@@ -62,31 +70,30 @@ static int hfsplus_initxattrs(struct inode *inode,
void *fs_info)
{
const struct xattr *xattr;
- char xattr_name[HFSPLUS_ATTR_MAX_STRLEN + 1] = {0};
- size_t xattr_name_len;
+ char *xattr_name;
int err = 0;
+ xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN + 1,
+ GFP_KERNEL);
+ if (!xattr_name)
+ return -ENOMEM;
for (xattr = xattr_array; xattr->name != NULL; xattr++) {
- xattr_name_len = strlen(xattr->name);
- if (xattr_name_len == 0)
+ if (!strcmp(xattr->name, ""))
continue;
- if (xattr_name_len + XATTR_SECURITY_PREFIX_LEN >
- HFSPLUS_ATTR_MAX_STRLEN)
- return -EOPNOTSUPP;
-
strcpy(xattr_name, XATTR_SECURITY_PREFIX);
strcpy(xattr_name +
XATTR_SECURITY_PREFIX_LEN, xattr->name);
memset(xattr_name +
- XATTR_SECURITY_PREFIX_LEN + xattr_name_len, 0, 1);
+ XATTR_SECURITY_PREFIX_LEN + strlen(xattr->name), 0, 1);
err = __hfsplus_setxattr(inode, xattr_name,
xattr->value, xattr->value_len, 0);
if (err)
break;
}
+ kfree(xattr_name);
return err;
}
diff --git a/fs/hfsplus/xattr_trusted.c b/fs/hfsplus/xattr_trusted.c
index 426cee277542..3c5f27e4746a 100644
--- a/fs/hfsplus/xattr_trusted.c
+++ b/fs/hfsplus/xattr_trusted.c
@@ -6,43 +6,51 @@
* Handler for trusted extended attributes.
*/
+#include <linux/nls.h>
+
#include "hfsplus_fs.h"
#include "xattr.h"
static int hfsplus_trusted_getxattr(struct dentry *dentry, const char *name,
void *buffer, size_t size, int type)
{
- char xattr_name[HFSPLUS_ATTR_MAX_STRLEN + 1] = {0};
- size_t len = strlen(name);
+ char *xattr_name;
+ int res;
if (!strcmp(name, ""))
return -EINVAL;
- if (len + XATTR_TRUSTED_PREFIX_LEN > HFSPLUS_ATTR_MAX_STRLEN)
- return -EOPNOTSUPP;
-
+ xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN + 1,
+ GFP_KERNEL);
+ if (!xattr_name)
+ return -ENOMEM;
strcpy(xattr_name, XATTR_TRUSTED_PREFIX);
strcpy(xattr_name + XATTR_TRUSTED_PREFIX_LEN, name);
- return hfsplus_getxattr(dentry, xattr_name, buffer, size);
+ res = hfsplus_getxattr(dentry, xattr_name, buffer, size);
+ kfree(xattr_name);
+ return res;
}
static int hfsplus_trusted_setxattr(struct dentry *dentry, const char *name,
const void *buffer, size_t size, int flags, int type)
{
- char xattr_name[HFSPLUS_ATTR_MAX_STRLEN + 1] = {0};
- size_t len = strlen(name);
+ char *xattr_name;
+ int res;
if (!strcmp(name, ""))
return -EINVAL;
- if (len + XATTR_TRUSTED_PREFIX_LEN > HFSPLUS_ATTR_MAX_STRLEN)
- return -EOPNOTSUPP;
-
+ xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN + 1,
+ GFP_KERNEL);
+ if (!xattr_name)
+ return -ENOMEM;
strcpy(xattr_name, XATTR_TRUSTED_PREFIX);
strcpy(xattr_name + XATTR_TRUSTED_PREFIX_LEN, name);
- return hfsplus_setxattr(dentry, xattr_name, buffer, size, flags);
+ res = hfsplus_setxattr(dentry, xattr_name, buffer, size, flags);
+ kfree(xattr_name);
+ return res;
}
static size_t hfsplus_trusted_listxattr(struct dentry *dentry, char *list,
diff --git a/fs/hfsplus/xattr_user.c b/fs/hfsplus/xattr_user.c
index e34016561ae0..2b625a538b64 100644
--- a/fs/hfsplus/xattr_user.c
+++ b/fs/hfsplus/xattr_user.c
@@ -6,43 +6,51 @@
* Handler for user extended attributes.
*/
+#include <linux/nls.h>
+
#include "hfsplus_fs.h"
#include "xattr.h"
static int hfsplus_user_getxattr(struct dentry *dentry, const char *name,
void *buffer, size_t size, int type)
{
- char xattr_name[HFSPLUS_ATTR_MAX_STRLEN + 1] = {0};
- size_t len = strlen(name);
+ char *xattr_name;
+ int res;
if (!strcmp(name, ""))
return -EINVAL;
- if (len + XATTR_USER_PREFIX_LEN > HFSPLUS_ATTR_MAX_STRLEN)
- return -EOPNOTSUPP;
-
+ xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN + 1,
+ GFP_KERNEL);
+ if (!xattr_name)
+ return -ENOMEM;
strcpy(xattr_name, XATTR_USER_PREFIX);
strcpy(xattr_name + XATTR_USER_PREFIX_LEN, name);
- return hfsplus_getxattr(dentry, xattr_name, buffer, size);
+ res = hfsplus_getxattr(dentry, xattr_name, buffer, size);
+ kfree(xattr_name);
+ return res;
}
static int hfsplus_user_setxattr(struct dentry *dentry, const char *name,
const void *buffer, size_t size, int flags, int type)
{
- char xattr_name[HFSPLUS_ATTR_MAX_STRLEN + 1] = {0};
- size_t len = strlen(name);
+ char *xattr_name;
+ int res;
if (!strcmp(name, ""))
return -EINVAL;
- if (len + XATTR_USER_PREFIX_LEN > HFSPLUS_ATTR_MAX_STRLEN)
- return -EOPNOTSUPP;
-
+ xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN + 1,
+ GFP_KERNEL);
+ if (!xattr_name)
+ return -ENOMEM;
strcpy(xattr_name, XATTR_USER_PREFIX);
strcpy(xattr_name + XATTR_USER_PREFIX_LEN, name);
- return hfsplus_setxattr(dentry, xattr_name, buffer, size, flags);
+ res = hfsplus_setxattr(dentry, xattr_name, buffer, size, flags);
+ kfree(xattr_name);
+ return res;
}
static size_t hfsplus_user_listxattr(struct dentry *dentry, char *list,
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-26 03:03:37 +0100