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/*
 *  ncp_fs.h
 *
 *  Copyright (C) 1995, 1996 by Volker Lendecke
 *
 */


#ifndef _LINUX_NCP_FS_H
#define _LINUX_NCP_FS_H

#include <linux/fs.h>
#include <linux/in.h>
#include <linux/types.h>

#include <linux/ncp_fs_i.h>
#include <linux/ncp_fs_sb.h>
#include <linux/ipx.h>
#include <linux/ncp_no.h>

/*
 * ioctl commands
 */


struct ncp_ioctl_request {
        unsigned int function;
        unsigned int size;
        char *data;
};

struct ncp_fs_info {
        int version;
        struct sockaddr_ipx addr;
        __kernel_uid_t mounted_uid;
        int connection;         /* Connection number the server assigned us */
        int buffer_size;        /* The negotiated buffer size, to be
                                   used for read/write requests! */


        int volume_number;
        __u32 directory_id;
};

struct ncp_fs_info_v2 {
        int version;
        unsigned long mounted_uid;
        unsigned int connection;
        unsigned int buffer_size;

        unsigned int volume_number;
        __u32 directory_id;

        __u32 dummy1;
        __u32 dummy2;
        __u32 dummy3;
};

struct ncp_sign_init
{
        char sign_root[8];
        char sign_last[16];
};

struct ncp_lock_ioctl
{
#define NCP_LOCK_LOG    0
#define NCP_LOCK_SH     1
#define NCP_LOCK_EX     2
#define NCP_LOCK_CLEAR  256
        int             cmd;
        int             origin;
        unsigned int    offset;
        unsigned int    length;
#define NCP_LOCK_DEFAULT_TIMEOUT        18
#define NCP_LOCK_MAX_TIMEOUT            180
        int             timeout;
};

struct ncp_setroot_ioctl
{
        int             volNumber;
        int             namespace;
        __u32           dirEntNum;
};

struct ncp_objectname_ioctl
{
#define NCP_AUTH_NONE   0x00
#define NCP_AUTH_BIND   0x31
#define NCP_AUTH_NDS    0x32
        int             auth_type;
        size_t          object_name_len;
        void*           object_name;    /* an userspace data, in most cases user name */
};

struct ncp_privatedata_ioctl
{
        size_t          len;
        void*           data;           /* ~1000 for NDS */
};

/* NLS charsets by ioctl */
#define NCP_IOCSNAME_LEN 20
struct ncp_nls_ioctl
{
        unsigned char codepage[NCP_IOCSNAME_LEN+1];
        unsigned char iocharset[NCP_IOCSNAME_LEN+1];
};

#define NCP_IOC_NCPREQUEST              _IOR('n', 1, struct ncp_ioctl_request)
#define NCP_IOC_GETMOUNTUID             _IOW('n', 2, __kernel_old_uid_t)
#define NCP_IOC_GETMOUNTUID2            _IOW('n', 2, unsigned long)

#define NCP_IOC_CONN_LOGGED_IN          _IO('n', 3)

#define NCP_GET_FS_INFO_VERSION    (1)
#define NCP_IOC_GET_FS_INFO             _IOWR('n', 4, struct ncp_fs_info)
#define NCP_GET_FS_INFO_VERSION_V2 (2)
#define NCP_IOC_GET_FS_INFO_V2          _IOWR('n', 4, struct ncp_fs_info_v2)

#define NCP_IOC_SIGN_INIT               _IOR('n', 5, struct ncp_sign_init)
#define NCP_IOC_SIGN_WANTED             _IOR('n', 6, int)
#define NCP_IOC_SET_SIGN_WANTED         _IOW('n', 6, int)

#define NCP_IOC_LOCKUNLOCK              _IOR('n', 7, struct ncp_lock_ioctl)

#define NCP_IOC_GETROOT                 _IOW('n', 8, struct ncp_setroot_ioctl)
#define NCP_IOC_SETROOT                 _IOR('n', 8, struct ncp_setroot_ioctl)

#define NCP_IOC_GETOBJECTNAME           _IOWR('n', 9, struct ncp_objectname_ioctl)
#define NCP_IOC_SETOBJECTNAME           _IOR('n', 9, struct ncp_objectname_ioctl)
#define NCP_IOC_GETPRIVATEDATA          _IOWR('n', 10, struct ncp_privatedata_ioctl)
#define NCP_IOC_SETPRIVATEDATA          _IOR('n', 10, struct ncp_privatedata_ioctl)

#define NCP_IOC_GETCHARSETS             _IOWR('n', 11, struct ncp_nls_ioctl)
#define NCP_IOC_SETCHARSETS             _IOR('n', 11, struct ncp_nls_ioctl)

#define NCP_IOC_GETDENTRYTTL            _IOW('n', 12, __u32)
#define NCP_IOC_SETDENTRYTTL            _IOR('n', 12, __u32)

/*
 * The packet size to allocate. One page should be enough.
 */

#define NCP_PACKET_SIZE 4070

#define NCP_MAXPATHLEN 255
#define NCP_MAXNAMELEN 14

#ifdef __KERNEL__

#include <linux/config.h>

/* undef because public define in umsdos_fs.h (ncp_fs.h isn't public) */
#undef PRINTK
/* define because it is easy to change PRINTK to {*}PRINTK */
#define PRINTK(format, args...) printk(KERN_DEBUG format , ## args)

#undef NCPFS_PARANOIA
#ifdef NCPFS_PARANOIA
#define PPRINTK(format, args...) PRINTK(format , ## args)
#else
#define PPRINTK(format, args...)
#endif

#ifndef DEBUG_NCP
#define DEBUG_NCP 0
#endif
#if DEBUG_NCP > 0
#define DPRINTK(format, args...) PRINTK(format , ## args)
#else
#define DPRINTK(format, args...)
#endif
#if DEBUG_NCP > 1
#define DDPRINTK(format, args...) PRINTK(format , ## args)
#else
#define DDPRINTK(format, args...)
#endif

#define NCP_MAX_RPC_TIMEOUT (6*HZ)


struct ncp_entry_info {
        struct nw_info_struct   i;
        ino_t                   ino;
        int                     opened;
        int                     access;
        unsigned int            volume;
        __u8                    file_handle[6];
};

/* Guess, what 0x564c is :-) */
#define NCP_SUPER_MAGIC  0x564c


static inline struct ncp_server *NCP_SBP(struct super_block *sb)
{
        return sb->s_fs_info;
}

#define NCP_SERVER(inode)       NCP_SBP((inode)->i_sb)
static inline struct ncp_inode_info *NCP_FINFO(struct inode *inode)
{
        return container_of(inode, struct ncp_inode_info, vfs_inode);
}

#ifdef DEBUG_NCP_MALLOC

#include <linux/slab.h>

extern int ncp_malloced;
extern int ncp_current_malloced;

static inline void *
 ncp_kmalloc(unsigned int size, int priority)
{
        ncp_malloced += 1;
        ncp_current_malloced += 1;
        return kmalloc(size, priority);
}

static inline void ncp_kfree_s(void *obj, int size)
{
        ncp_current_malloced -= 1;
        kfree(obj);
}

#else                           /* DEBUG_NCP_MALLOC */

#define ncp_kmalloc(s,p) kmalloc(s,p)
#define ncp_kfree_s(o,s) kfree(o)

#endif                          /* DEBUG_NCP_MALLOC */

/* linux/fs/ncpfs/inode.c */
int ncp_notify_change(struct dentry *, struct iattr *);
struct inode *ncp_iget(struct super_block *, struct ncp_entry_info *);
void ncp_update_inode(struct inode *, struct ncp_entry_info *);
void ncp_update_inode2(struct inode *, struct ncp_entry_info *);

/* linux/fs/ncpfs/dir.c */
extern struct inode_operations ncp_dir_inode_operations;
extern struct file_operations ncp_dir_operations;
int ncp_conn_logged_in(struct super_block *);
int ncp_date_dos2unix(__u16 time, __u16 date);
void ncp_date_unix2dos(int unix_date, __u16 * time, __u16 * date);

/* linux/fs/ncpfs/ioctl.c */
int ncp_ioctl(struct inode *, struct file *, unsigned int, unsigned long);

/* linux/fs/ncpfs/sock.c */
int ncp_request2(struct ncp_server *server, int function,
        void* reply, int max_reply_size);
static inline int ncp_request(struct ncp_server *server, int function) {
        return ncp_request2(server, function, server->packet, server->packet_size);
}
int ncp_connect(struct ncp_server *server);
int ncp_disconnect(struct ncp_server *server);
void ncp_lock_server(struct ncp_server *server);
void ncp_unlock_server(struct ncp_server *server);

/* linux/fs/ncpfs/file.c */
extern struct inode_operations ncp_file_inode_operations;
extern struct file_operations ncp_file_operations;
int ncp_make_open(struct inode *, int);

/* linux/fs/ncpfs/mmap.c */
int ncp_mmap(struct file *, struct vm_area_struct *);

/* linux/fs/ncpfs/ncplib_kernel.c */
int ncp_make_closed(struct inode *);

#define ncp_namespace(i)        (NCP_SERVER(i)->name_space[NCP_FINFO(i)->volNumber])

static inline int ncp_preserve_entry_case(struct inode *i, __u32 nscreator)
{
#ifdef CONFIG_NCPFS_SMALLDOS
        int ns = ncp_namespace(i);

        if ((ns == NW_NS_DOS)
#ifdef CONFIG_NCPFS_OS2_NS
                || ((ns == NW_NS_OS2) && (nscreator == NW_NS_DOS))
#endif /* CONFIG_NCPFS_OS2_NS */
                                )
                return 0;
#endif /* CONFIG_NCPFS_SMALLDOS */
        return 1;
}

#define ncp_preserve_case(i)    (ncp_namespace(i) != NW_NS_DOS)

static inline int ncp_case_sensitive(struct inode *i)
{
#ifdef CONFIG_NCPFS_NFS_NS
        return ncp_namespace(i) == NW_NS_NFS;
#else
        return 0;
#endif  /* CONFIG_NCPFS_NFS_NS */
}

#endif                          /* __KERNEL__ */

#endif                          /* _LINUX_NCP_FS_H */