#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 inode *dir, struct dentry *dentry, struct inode *inode); int reiserfs_cache_default_acl(struct inode *dir); extern int reiserfs_xattr_posix_acl_init(void) __init; extern int reiserfs_xattr_posix_acl_exit(void); extern struct reiserfs_xattr_handler posix_acl_default_handler; extern struct reiserfs_xattr_handler posix_acl_access_handler; static inline void reiserfs_init_acl_access(struct inode *inode) { REISERFS_I(inode)->i_acl_access = NULL; } static inline void reiserfs_init_acl_default(struct inode *inode) { REISERFS_I(inode)->i_acl_default = NULL; } #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_xattr_posix_acl_init(void) { return 0; } static inline int reiserfs_xattr_posix_acl_exit(void) { return 0; } static inline int reiserfs_acl_chmod(struct inode *inode) { return 0; } static inline int reiserfs_inherit_default_acl(const struct inode *dir, struct dentry *dentry, struct inode *inode) { return 0; } static inline void reiserfs_init_acl_access(struct inode *inode) { } static inline void reiserfs_init_acl_default(struct inode *inode) { } #endif