#include "hfsplus_fs.h"
#include <linux/posix_acl_xattr.h>
+#include <linux/nls.h>
#include "xattr.h"
#include "acl.h"
+static int hfsplus_removexattr(struct inode *inode, const char *name);
+
const struct xattr_handler *hfsplus_xattr_handlers[] = {
&hfsplus_xattr_osx_handler,
&hfsplus_xattr_user_handler,
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);
}
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;
HFSPLUS_IS_RSRC(inode))
return -EOPNOTSUPP;
- if (strncmp(name, XATTR_MAC_OSX_PREFIX,
- XATTR_MAC_OSX_PREFIX_LEN) == 0)
- name += XATTR_MAC_OSX_PREFIX_LEN;
-
- if (value == NULL) {
- value = "";
- size = 0;
- }
+ if (value == NULL)
+ return hfsplus_removexattr(inode, name);
err = hfs_find_init(HFSPLUS_SB(inode->i_sb)->cat_tree, &cat_fd);
if (err) {
return err;
}
-static inline int is_osx_xattr(const char *xattr_name)
-{
- return !is_known_namespace(xattr_name);
-}
-
static int name_len(const char *xattr_name, int xattr_name_len)
{
int len = xattr_name_len + 1;
- if (is_osx_xattr(xattr_name))
+ if (!is_known_namespace(xattr_name))
len += XATTR_MAC_OSX_PREFIX_LEN;
return len;
int len = name_len;
int offset = 0;
- if (is_osx_xattr(xattr_name)) {
+ if (!is_known_namespace(xattr_name)) {
strncpy(buffer, XATTR_MAC_OSX_PREFIX, XATTR_MAC_OSX_PREFIX_LEN);
offset += XATTR_MAC_OSX_PREFIX_LEN;
len += XATTR_MAC_OSX_PREFIX_LEN;
HFSPLUS_IS_RSRC(inode))
return -EOPNOTSUPP;
- if (strncmp(name, XATTR_MAC_OSX_PREFIX,
- XATTR_MAC_OSX_PREFIX_LEN) == 0) {
- /* skip "osx." prefix */
- name += XATTR_MAC_OSX_PREFIX_LEN;
- /*
- * Don't allow retrieving properly prefixed attributes
- * by prepending them with "osx."
- */
- if (is_known_namespace(name))
- return -EOPNOTSUPP;
- }
-
if (!strcmp_xattr_finder_info(name))
return hfsplus_getxattr_finder_info(inode, value, 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) &&
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) {
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)) {
}
end_listxattr:
+ kfree(strbuf);
+out:
hfs_find_exit(&fd);
return res;
}
-int hfsplus_removexattr(struct dentry *dentry, const char *name)
+static int hfsplus_removexattr(struct inode *inode, const char *name)
{
int err = 0;
- struct inode *inode = dentry->d_inode;
struct hfs_find_data cat_fd;
u16 flags;
u16 cat_entry_type;
int is_xattr_acl_deleted = 0;
int is_all_xattrs_deleted = 0;
- if ((!S_ISREG(inode->i_mode) &&
- !S_ISDIR(inode->i_mode)) ||
- HFSPLUS_IS_RSRC(inode))
- return -EOPNOTSUPP;
-
if (!HFSPLUS_SB(inode->i_sb)->attr_tree)
return -EOPNOTSUPP;
- if (strncmp(name, XATTR_MAC_OSX_PREFIX,
- XATTR_MAC_OSX_PREFIX_LEN) == 0)
- name += XATTR_MAC_OSX_PREFIX_LEN;
-
if (!strcmp_xattr_finder_info(name))
return -EOPNOTSUPP;
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)
+ /*
+ * 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,
projects / deliverable / linux.git / blobdiff