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/*
* smb_fs.h
*
* Copyright (C) 1995 by Paal-Kr. Engstad and Volker Lendecke
* Copyright (C) 1997 by Volker Lendecke
*
*/
#ifndef _LINUX_SMB_FS_H
#define _LINUX_SMB_FS_H
#include <linux/smb.h>
/*
* ioctl commands
*/
#define SMB_IOC_GETMOUNTUID _IOR('u', 1, __kernel_old_uid_t)
#define SMB_IOC_NEWCONN _IOW('u', 2, struct smb_conn_opt)
/* __kernel_uid_t can never change, so we have to use __kernel_uid32_t */
#define SMB_IOC_GETMOUNTUID32 _IOR('u', 3, __kernel_uid32_t)
#ifdef __KERNEL__
#include <linux/pagemap.h>
#include <linux/vmalloc.h>
#include <linux/smb_mount.h>
#include <asm/unaligned.h>
/* macro names are short for word, double-word, long value (?) */
#define WVAL(buf,pos) \
(le16_to_cpu(get_unaligned((u16 *)((u8 *)(buf) + (pos)))))
#define DVAL(buf,pos) \
(le32_to_cpu(get_unaligned((u32 *)((u8 *)(buf) + (pos)))))
#define LVAL(buf,pos) \
(le64_to_cpu(get_unaligned((u64 *)((u8 *)(buf) + (pos)))))
#define WSET(buf,pos,val) \
put_unaligned(cpu_to_le16((u16)(val)), (u16 *)((u8 *)(buf) + (pos)))
#define DSET(buf,pos,val) \
put_unaligned(cpu_to_le32((u32)(val)), (u32 *)((u8 *)(buf) + (pos)))
#define LSET(buf,pos,val) \
put_unaligned(cpu_to_le64((u64)(val)), (u64 *)((u8 *)(buf) + (pos)))
/* where to find the base of the SMB packet proper */
#define smb_base(buf) ((u8 *)(((u8 *)(buf))+4))
#ifdef DEBUG_SMB_MALLOC
extern int smb_malloced;
extern int smb_current_vmalloced;
static inline void *
smb_vmalloc(unsigned int size)
{
smb_malloced += 1;
smb_current_vmalloced += 1;
return vmalloc(size);
}
static inline void
smb_vfree(void *obj)
{
smb_current_vmalloced -= 1;
vfree(obj);
}
#else /* DEBUG_SMB_MALLOC */
#define smb_kmalloc(s,p) kmalloc(s,p)
#define smb_kfree_s(o,s) kfree(o)
#define smb_vmalloc(s) vmalloc(s)
#define smb_vfree(o) vfree(o)
#endif /* DEBUG_SMB_MALLOC */
/*
* Flags for the in-memory inode
*/
#define SMB_F_LOCALWRITE 0x02 /* file modified locally */
/* NT1 protocol capability bits */
#define SMB_CAP_RAW_MODE 0x0001
#define SMB_CAP_MPX_MODE 0x0002
#define SMB_CAP_UNICODE 0x0004
#define SMB_CAP_LARGE_FILES 0x0008
#define SMB_CAP_NT_SMBS 0x0010
#define SMB_CAP_RPC_REMOTE_APIS 0x0020
#define SMB_CAP_STATUS32 0x0040
#define SMB_CAP_LEVEL_II_OPLOCKS 0x0080
#define SMB_CAP_LOCK_AND_READ 0x0100
#define SMB_CAP_NT_FIND 0x0200
#define SMB_CAP_DFS 0x1000
#define SMB_CAP_LARGE_READX 0x4000
/*
* This is the time we allow an inode, dentry or dir cache to live. It is bad
* for performance to have shorter ttl on an inode than on the cache. It can
* cause refresh on each inode for a dir listing ... one-by-one
*/
#define SMB_MAX_AGE(server) (((server)->mnt->ttl * HZ) / 1000)
static inline void
smb_age_dentry(struct smb_sb_info *server, struct dentry *dentry)
{
dentry->d_time = jiffies - SMB_MAX_AGE(server);
}
struct smb_cache_head {
time_t mtime; /* unused */
unsigned long time; /* cache age */
unsigned long end; /* last valid fpos in cache */
int eof;
};
#define SMB_DIRCACHE_SIZE ((int)(PAGE_CACHE_SIZE/sizeof(struct dentry *)))
union smb_dir_cache {
struct smb_cache_head head;
struct dentry *dentry[SMB_DIRCACHE_SIZE];
};
#define SMB_FIRSTCACHE_SIZE ((int)((SMB_DIRCACHE_SIZE * \
sizeof(struct dentry *) - sizeof(struct smb_cache_head)) / \
sizeof(struct dentry *)))
#define SMB_DIRCACHE_START (SMB_DIRCACHE_SIZE - SMB_FIRSTCACHE_SIZE)
struct smb_cache_control {
struct smb_cache_head head;
struct page *page;
union smb_dir_cache *cache;
unsigned long fpos, ofs;
int filled, valid, idx;
};
static inline int
smb_is_open(struct inode *i)
{
return (i->u.smbfs_i.open == SMB_SERVER(i)->generation);
}
/* FIXME! the prototype list is probably not correct. Automate? */
/* linux/fs/smbfs/file.c */
extern struct inode_operations smb_file_inode_operations;
extern struct file_operations smb_file_operations;
extern struct address_space_operations smb_file_aops;
/* linux/fs/smbfs/dir.c */
extern struct inode_operations smb_dir_inode_operations;
extern struct file_operations smb_dir_operations;
void smb_new_dentry(struct dentry *dentry);
void smb_renew_times(struct dentry *);
/* linux/fs/smbfs/ioctl.c */
int smb_ioctl (struct inode *, struct file *, unsigned int, unsigned long);
/* linux/fs/smbfs/inode.c */
struct super_block *smb_read_super(struct super_block *, void *, int);
void smb_get_inode_attr(struct inode *, struct smb_fattr *);
void smb_set_inode_attr(struct inode *, struct smb_fattr *);
void smb_invalidate_inodes(struct smb_sb_info *);
int smb_revalidate_inode(struct dentry *);
int smb_notify_change(struct dentry *, struct iattr *);
struct inode *smb_iget(struct super_block *, struct smb_fattr *);
/* linux/fs/smbfs/proc.c */
int smb_setcodepage(struct smb_sb_info *server, struct smb_nls_codepage *cp);
__u32 smb_len(unsigned char *);
__u8 *smb_setup_header(struct smb_sb_info *, __u8, __u16, __u16);
int smb_get_rsize(struct smb_sb_info *);
int smb_get_wsize(struct smb_sb_info *);
int smb_newconn(struct smb_sb_info *, struct smb_conn_opt *);
int smb_errno(struct smb_sb_info *);
int smb_close(struct inode *);
int smb_close_fileid(struct dentry *, __u16);
int smb_open(struct dentry *, int);
int smb_proc_read(struct inode *, off_t, int, char *);
int smb_proc_write(struct inode *, off_t, int, const char *);
int smb_proc_create(struct dentry *, __u16, time_t, __u16 *);
int smb_proc_mv(struct dentry *, struct dentry *);
int smb_proc_mkdir(struct dentry *);
int smb_proc_rmdir(struct dentry *);
int smb_proc_unlink(struct dentry *);
int smb_proc_readdir(struct file *filp, void *dirent, filldir_t filldir,
struct smb_cache_control *ctl);
int smb_proc_getattr(struct dentry *, struct smb_fattr *);
int smb_proc_setattr(struct dentry *, struct smb_fattr *);
int smb_proc_settime(struct dentry *, struct smb_fattr *);
int smb_proc_dskattr(struct super_block *, struct statfs *);
int smb_proc_disconnect(struct smb_sb_info *);
int smb_proc_trunc(struct smb_sb_info *, __u16, __u32);
void smb_init_root_dirent(struct smb_sb_info *, struct smb_fattr *);
/* linux/fs/smbfs/sock.c */
int smb_round_length(int);
int smb_valid_socket(struct inode *);
void smb_close_socket(struct smb_sb_info *);
int smb_request(struct smb_sb_info *server);
int smb_catch_keepalive(struct smb_sb_info *server);
int smb_dont_catch_keepalive(struct smb_sb_info *server);
int smb_trans2_request(struct smb_sb_info *server, __u16 trans2_command,
int ldata, unsigned char *data,
int lparam, unsigned char *param,
int *lrdata, unsigned char **rdata,
int *lrparam, unsigned char **rparam);
/* fs/smbfs/cache.c */
void smb_invalid_dir_cache(struct inode * dir);
void smb_invalidate_dircache_entries(struct dentry *parent);
struct dentry * smb_dget_fpos(struct dentry *dentry, struct dentry *parent,
unsigned long fpos);
int smb_fill_cache(struct file *filp, void *dirent, filldir_t filldir,
struct smb_cache_control *ctrl, struct qstr *qname,
struct smb_fattr *entry);
#endif /* __KERNEL__ */
#endif /* _LINUX_SMB_FS_H */
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