cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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cifsfs.h (6471B)


      1/* SPDX-License-Identifier: LGPL-2.1 */
      2/*
      3 *
      4 *   Copyright (c) International Business Machines  Corp., 2002, 2007
      5 *   Author(s): Steve French (sfrench@us.ibm.com)
      6 *
      7 */
      8
      9#ifndef _CIFSFS_H
     10#define _CIFSFS_H
     11
     12#include <linux/hash.h>
     13
     14#define ROOT_I 2
     15
     16/*
     17 * ino_t is 32-bits on 32-bit arch. We have to squash the 64-bit value down
     18 * so that it will fit. We use hash_64 to convert the value to 31 bits, and
     19 * then add 1, to ensure that we don't end up with a 0 as the value.
     20 */
     21static inline ino_t
     22cifs_uniqueid_to_ino_t(u64 fileid)
     23{
     24	if ((sizeof(ino_t)) < (sizeof(u64)))
     25		return (ino_t)hash_64(fileid, (sizeof(ino_t) * 8) - 1) + 1;
     26
     27	return (ino_t)fileid;
     28
     29}
     30
     31static inline void cifs_set_time(struct dentry *dentry, unsigned long time)
     32{
     33	dentry->d_fsdata = (void *) time;
     34}
     35
     36static inline unsigned long cifs_get_time(struct dentry *dentry)
     37{
     38	return (unsigned long) dentry->d_fsdata;
     39}
     40
     41extern struct file_system_type cifs_fs_type, smb3_fs_type;
     42extern const struct address_space_operations cifs_addr_ops;
     43extern const struct address_space_operations cifs_addr_ops_smallbuf;
     44
     45/* Functions related to super block operations */
     46extern void cifs_sb_active(struct super_block *sb);
     47extern void cifs_sb_deactive(struct super_block *sb);
     48
     49/* Functions related to inodes */
     50extern const struct inode_operations cifs_dir_inode_ops;
     51extern struct inode *cifs_root_iget(struct super_block *);
     52extern int cifs_create(struct user_namespace *, struct inode *,
     53		       struct dentry *, umode_t, bool excl);
     54extern int cifs_atomic_open(struct inode *, struct dentry *,
     55			    struct file *, unsigned, umode_t);
     56extern struct dentry *cifs_lookup(struct inode *, struct dentry *,
     57				  unsigned int);
     58extern int cifs_unlink(struct inode *dir, struct dentry *dentry);
     59extern int cifs_hardlink(struct dentry *, struct inode *, struct dentry *);
     60extern int cifs_mknod(struct user_namespace *, struct inode *, struct dentry *,
     61		      umode_t, dev_t);
     62extern int cifs_mkdir(struct user_namespace *, struct inode *, struct dentry *,
     63		      umode_t);
     64extern int cifs_rmdir(struct inode *, struct dentry *);
     65extern int cifs_rename2(struct user_namespace *, struct inode *,
     66			struct dentry *, struct inode *, struct dentry *,
     67			unsigned int);
     68extern int cifs_revalidate_file_attr(struct file *filp);
     69extern int cifs_revalidate_dentry_attr(struct dentry *);
     70extern int cifs_revalidate_file(struct file *filp);
     71extern int cifs_revalidate_dentry(struct dentry *);
     72extern int cifs_invalidate_mapping(struct inode *inode);
     73extern int cifs_revalidate_mapping(struct inode *inode);
     74extern int cifs_zap_mapping(struct inode *inode);
     75extern int cifs_getattr(struct user_namespace *, const struct path *,
     76			struct kstat *, u32, unsigned int);
     77extern int cifs_setattr(struct user_namespace *, struct dentry *,
     78			struct iattr *);
     79extern int cifs_fiemap(struct inode *, struct fiemap_extent_info *, u64 start,
     80		       u64 len);
     81
     82extern const struct inode_operations cifs_file_inode_ops;
     83extern const struct inode_operations cifs_symlink_inode_ops;
     84extern const struct inode_operations cifs_dfs_referral_inode_operations;
     85
     86
     87/* Functions related to files and directories */
     88extern const struct file_operations cifs_file_ops;
     89extern const struct file_operations cifs_file_direct_ops; /* if directio mnt */
     90extern const struct file_operations cifs_file_strict_ops; /* if strictio mnt */
     91extern const struct file_operations cifs_file_nobrl_ops; /* no brlocks */
     92extern const struct file_operations cifs_file_direct_nobrl_ops;
     93extern const struct file_operations cifs_file_strict_nobrl_ops;
     94extern int cifs_open(struct inode *inode, struct file *file);
     95extern int cifs_close(struct inode *inode, struct file *file);
     96extern int cifs_closedir(struct inode *inode, struct file *file);
     97extern ssize_t cifs_user_readv(struct kiocb *iocb, struct iov_iter *to);
     98extern ssize_t cifs_direct_readv(struct kiocb *iocb, struct iov_iter *to);
     99extern ssize_t cifs_strict_readv(struct kiocb *iocb, struct iov_iter *to);
    100extern ssize_t cifs_user_writev(struct kiocb *iocb, struct iov_iter *from);
    101extern ssize_t cifs_direct_writev(struct kiocb *iocb, struct iov_iter *from);
    102extern ssize_t cifs_strict_writev(struct kiocb *iocb, struct iov_iter *from);
    103extern int cifs_flock(struct file *pfile, int cmd, struct file_lock *plock);
    104extern int cifs_lock(struct file *, int, struct file_lock *);
    105extern int cifs_fsync(struct file *, loff_t, loff_t, int);
    106extern int cifs_strict_fsync(struct file *, loff_t, loff_t, int);
    107extern int cifs_flush(struct file *, fl_owner_t id);
    108extern int cifs_file_mmap(struct file * , struct vm_area_struct *);
    109extern int cifs_file_strict_mmap(struct file * , struct vm_area_struct *);
    110extern const struct file_operations cifs_dir_ops;
    111extern int cifs_dir_open(struct inode *inode, struct file *file);
    112extern int cifs_readdir(struct file *file, struct dir_context *ctx);
    113
    114/* Functions related to dir entries */
    115extern const struct dentry_operations cifs_dentry_ops;
    116extern const struct dentry_operations cifs_ci_dentry_ops;
    117
    118#ifdef CONFIG_CIFS_DFS_UPCALL
    119extern struct vfsmount *cifs_dfs_d_automount(struct path *path);
    120#else
    121#define cifs_dfs_d_automount NULL
    122#endif
    123
    124/* Functions related to symlinks */
    125extern const char *cifs_get_link(struct dentry *, struct inode *,
    126			struct delayed_call *);
    127extern int cifs_symlink(struct user_namespace *mnt_userns, struct inode *inode,
    128			struct dentry *direntry, const char *symname);
    129
    130#ifdef CONFIG_CIFS_XATTR
    131extern const struct xattr_handler *cifs_xattr_handlers[];
    132extern ssize_t	cifs_listxattr(struct dentry *, char *, size_t);
    133#else
    134# define cifs_xattr_handlers NULL
    135# define cifs_listxattr NULL
    136#endif
    137
    138extern ssize_t cifs_file_copychunk_range(unsigned int xid,
    139					struct file *src_file, loff_t off,
    140					struct file *dst_file, loff_t destoff,
    141					size_t len, unsigned int flags);
    142
    143extern long cifs_ioctl(struct file *filep, unsigned int cmd, unsigned long arg);
    144extern void cifs_setsize(struct inode *inode, loff_t offset);
    145extern int cifs_truncate_page(struct address_space *mapping, loff_t from);
    146
    147struct smb3_fs_context;
    148extern struct dentry *cifs_smb3_do_mount(struct file_system_type *fs_type,
    149					 int flags, struct smb3_fs_context *ctx);
    150
    151#ifdef CONFIG_CIFS_NFSD_EXPORT
    152extern const struct export_operations cifs_export_ops;
    153#endif /* CONFIG_CIFS_NFSD_EXPORT */
    154
    155/* when changing internal version - update following two lines at same time */
    156#define SMB3_PRODUCT_BUILD 37
    157#define CIFS_VERSION   "2.37"
    158#endif				/* _CIFSFS_H */