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Diffstat (limited to 'fs/smb/client/cifsfs.h')
| -rw-r--r-- | fs/smb/client/cifsfs.h | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/fs/smb/client/cifsfs.h b/fs/smb/client/cifsfs.h new file mode 100644 index 000000000..a1d8791c4 --- /dev/null +++ b/fs/smb/client/cifsfs.h @@ -0,0 +1,161 @@ +/* SPDX-License-Identifier: LGPL-2.1 */ +/* + * + * Copyright (c) International Business Machines Corp., 2002, 2007 + * Author(s): Steve French (sfrench@us.ibm.com) + * + */ + +#ifndef _CIFSFS_H +#define _CIFSFS_H + +#include <linux/hash.h> + +#define ROOT_I 2 + +/* + * ino_t is 32-bits on 32-bit arch. We have to squash the 64-bit value down + * so that it will fit. We use hash_64 to convert the value to 31 bits, and + * then add 1, to ensure that we don't end up with a 0 as the value. + */ +static inline ino_t +cifs_uniqueid_to_ino_t(u64 fileid) +{ + if ((sizeof(ino_t)) < (sizeof(u64))) + return (ino_t)hash_64(fileid, (sizeof(ino_t) * 8) - 1) + 1; + + return (ino_t)fileid; + +} + +static inline void cifs_set_time(struct dentry *dentry, unsigned long time) +{ + dentry->d_fsdata = (void *) time; +} + +static inline unsigned long cifs_get_time(struct dentry *dentry) +{ + return (unsigned long) dentry->d_fsdata; +} + +extern struct file_system_type cifs_fs_type, smb3_fs_type; +extern const struct address_space_operations cifs_addr_ops; +extern const struct address_space_operations cifs_addr_ops_smallbuf; + +/* Functions related to super block operations */ +extern void cifs_sb_active(struct super_block *sb); +extern void cifs_sb_deactive(struct super_block *sb); + +/* Functions related to inodes */ +extern const struct inode_operations cifs_dir_inode_ops; +extern struct inode *cifs_root_iget(struct super_block *); +extern int cifs_create(struct user_namespace *, struct inode *, + struct dentry *, umode_t, bool excl); +extern int cifs_atomic_open(struct inode *, struct dentry *, + struct file *, unsigned, umode_t); +extern struct dentry *cifs_lookup(struct inode *, struct dentry *, + unsigned int); +extern int cifs_unlink(struct inode *dir, struct dentry *dentry); +extern int cifs_hardlink(struct dentry *, struct inode *, struct dentry *); +extern int cifs_mknod(struct user_namespace *, struct inode *, struct dentry *, + umode_t, dev_t); +extern int cifs_mkdir(struct user_namespace *, struct inode *, struct dentry *, + umode_t); +extern int cifs_rmdir(struct inode *, struct dentry *); +extern int cifs_rename2(struct user_namespace *, struct inode *, + struct dentry *, struct inode *, struct dentry *, + unsigned int); +extern int cifs_revalidate_file_attr(struct file *filp); +extern int cifs_revalidate_dentry_attr(struct dentry *); +extern int cifs_revalidate_file(struct file *filp); +extern int cifs_revalidate_dentry(struct dentry *); +extern int cifs_invalidate_mapping(struct inode *inode); +extern int cifs_revalidate_mapping(struct inode *inode); +extern int cifs_zap_mapping(struct inode *inode); +extern int cifs_getattr(struct user_namespace *, const struct path *, + struct kstat *, u32, unsigned int); +extern int cifs_setattr(struct user_namespace *, struct dentry *, + struct iattr *); +extern int cifs_fiemap(struct inode *, struct fiemap_extent_info *, u64 start, + u64 len); + +extern const struct inode_operations cifs_file_inode_ops; +extern const struct inode_operations cifs_symlink_inode_ops; +extern const struct inode_operations cifs_dfs_referral_inode_operations; + + +/* Functions related to files and directories */ +extern const struct file_operations cifs_file_ops; +extern const struct file_operations cifs_file_direct_ops; /* if directio mnt */ +extern const struct file_operations cifs_file_strict_ops; /* if strictio mnt */ +extern const struct file_operations cifs_file_nobrl_ops; /* no brlocks */ +extern const struct file_operations cifs_file_direct_nobrl_ops; +extern const struct file_operations cifs_file_strict_nobrl_ops; +extern int cifs_open(struct inode *inode, struct file *file); +extern int cifs_close(struct inode *inode, struct file *file); +extern int cifs_closedir(struct inode *inode, struct file *file); +extern ssize_t cifs_user_readv(struct kiocb *iocb, struct iov_iter *to); +extern ssize_t cifs_direct_readv(struct kiocb *iocb, struct iov_iter *to); +extern ssize_t cifs_strict_readv(struct kiocb *iocb, struct iov_iter *to); +extern ssize_t cifs_user_writev(struct kiocb *iocb, struct iov_iter *from); +extern ssize_t cifs_direct_writev(struct kiocb *iocb, struct iov_iter *from); +extern ssize_t cifs_strict_writev(struct kiocb *iocb, struct iov_iter *from); +extern int cifs_flock(struct file *pfile, int cmd, struct file_lock *plock); +extern int cifs_lock(struct file *, int, struct file_lock *); +extern int cifs_fsync(struct file *, loff_t, loff_t, int); +extern int cifs_strict_fsync(struct file *, loff_t, loff_t, int); +extern int cifs_flush(struct file *, fl_owner_t id); +extern int cifs_file_mmap(struct file *file, struct vm_area_struct *vma); +extern int cifs_file_strict_mmap(struct file *file, struct vm_area_struct *vma); +extern const struct file_operations cifs_dir_ops; +extern int cifs_dir_open(struct inode *inode, struct file *file); +extern int cifs_readdir(struct file *file, struct dir_context *ctx); + +/* Functions related to dir entries */ +extern const struct dentry_operations cifs_dentry_ops; +extern const struct dentry_operations cifs_ci_dentry_ops; + +#ifdef CONFIG_CIFS_DFS_UPCALL +extern struct vfsmount *cifs_dfs_d_automount(struct path *path); +#else +static inline struct vfsmount *cifs_dfs_d_automount(struct path *path) +{ + return ERR_PTR(-EREMOTE); +} +#endif + +/* Functions related to symlinks */ +extern const char *cifs_get_link(struct dentry *, struct inode *, + struct delayed_call *); +extern int cifs_symlink(struct user_namespace *mnt_userns, struct inode *inode, + struct dentry *direntry, const char *symname); + +#ifdef CONFIG_CIFS_XATTR +extern const struct xattr_handler *cifs_xattr_handlers[]; +extern ssize_t cifs_listxattr(struct dentry *, char *, size_t); +#else +# define cifs_xattr_handlers NULL +# define cifs_listxattr NULL +#endif + +extern ssize_t cifs_file_copychunk_range(unsigned int xid, + struct file *src_file, loff_t off, + struct file *dst_file, loff_t destoff, + size_t len, unsigned int flags); + +extern long cifs_ioctl(struct file *filep, unsigned int cmd, unsigned long arg); +extern void cifs_setsize(struct inode *inode, loff_t offset); +extern int cifs_truncate_page(struct address_space *mapping, loff_t from); + +struct smb3_fs_context; +extern struct dentry *cifs_smb3_do_mount(struct file_system_type *fs_type, + int flags, struct smb3_fs_context *ctx); + +#ifdef CONFIG_CIFS_NFSD_EXPORT +extern const struct export_operations cifs_export_ops; +#endif /* CONFIG_CIFS_NFSD_EXPORT */ + +/* when changing internal version - update following two lines at same time */ +#define SMB3_PRODUCT_BUILD 40 +#define CIFS_VERSION "2.40" +#endif /* _CIFSFS_H */ |