PAL.C.T MINI SHELL
#include <linux/init.h>
#include <linux/posix_acl.h>
#define REISERFS_ACL_VERSION 0x0001
typedef struct {
__le16 e_tag;
__le16 e_perm;
__le32 e_id;
} reiserfs_acl_entry;
typedef struct {
__le16 e_tag;
__le16 e_perm;
} reiserfs_acl_entry_short;
typedef struct {
__le32 a_version;
} reiserfs_acl_header;
static inline size_t reiserfs_acl_size(int count)
{
if (count <= 4) {
return sizeof(reiserfs_acl_header) +
count * sizeof(reiserfs_acl_entry_short);
} else {
return sizeof(reiserfs_acl_header) +
4 * sizeof(reiserfs_acl_entry_short) +
(count - 4) * sizeof(reiserfs_acl_entry);
}
}
static inline int reiserfs_acl_count(size_t size)
{
ssize_t s;
size -= sizeof(reiserfs_acl_header);
s = size - 4 * sizeof(reiserfs_acl_entry_short);
if (s < 0) {
if (size % sizeof(reiserfs_acl_entry_short))
return -1;
return size / sizeof(reiserfs_acl_entry_short);
} else {
if (s % sizeof(reiserfs_acl_entry))
return -1;
return s / sizeof(reiserfs_acl_entry) + 4;
}
}
#ifdef CONFIG_REISERFS_FS_POSIX_ACL
struct posix_acl *reiserfs_get_acl(struct inode *inode, int type);
int reiserfs_acl_chmod(struct inode *inode);
int reiserfs_inherit_default_acl(struct reiserfs_transaction_handle *th,
struct inode *dir, struct dentry *dentry,
struct inode *inode);
int reiserfs_cache_default_acl(struct inode *dir);
extern struct xattr_handler reiserfs_posix_acl_default_handler;
extern struct xattr_handler reiserfs_posix_acl_access_handler;
#else
#define reiserfs_cache_default_acl(inode) 0
static inline struct posix_acl *reiserfs_get_acl(struct inode *inode, int type)
{
return NULL;
}
static inline int reiserfs_acl_chmod(struct inode *inode)
{
return 0;
}
static inline int
reiserfs_inherit_default_acl(struct reiserfs_transaction_handle *th,
const struct inode *dir, struct dentry *dentry,
struct inode *inode)
{
return 0;
}
#endif
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