ncpfs: move net/ncpfs to drivers/staging/ncpfs

The Netware Core Protocol is a file system that talks to
Netware clients over IPX. Since IPX has been dead for many years
move the file system into staging for eventual interment.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 0 insertions, 1322 deletions

diff --git a/fs/ncpfs/ncplib_kernel.c b/fs/ncpfs/ncplib_kernel.c
deleted file mode 100644
index 804adfebba2f..000000000000
--- a/fs/ncpfs/ncplib_kernel.c
+++ /dev/null
@@ -1,1322 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- *  ncplib_kernel.c
- *
- *  Copyright (C) 1995, 1996 by Volker Lendecke
- *  Modified for big endian by J.F. Chadima and David S. Miller
- *  Modified 1997 Peter Waltenberg, Bill Hawes, David Woodhouse for 2.1 dcache
- *  Modified 1999 Wolfram Pienkoss for NLS
- *  Modified 2000 Ben Harris, University of Cambridge for NFS NS meta-info
- *
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include "ncp_fs.h"
-
-static inline void assert_server_locked(struct ncp_server *server)
-{
-	if (server->lock == 0) {
-		ncp_dbg(1, "server not locked!\n");
-	}
-}
-
-static void ncp_add_byte(struct ncp_server *server, __u8 x)
-{
-	assert_server_locked(server);
-	*(__u8 *) (&(server->packet[server->current_size])) = x;
-	server->current_size += 1;
-	return;
-}
-
-static void ncp_add_word(struct ncp_server *server, __le16 x)
-{
-	assert_server_locked(server);
-	put_unaligned(x, (__le16 *) (&(server->packet[server->current_size])));
-	server->current_size += 2;
-	return;
-}
-
-static void ncp_add_be16(struct ncp_server *server, __u16 x)
-{
-	assert_server_locked(server);
-	put_unaligned(cpu_to_be16(x), (__be16 *) (&(server->packet[server->current_size])));
-	server->current_size += 2;
-}
-
-static void ncp_add_dword(struct ncp_server *server, __le32 x)
-{
-	assert_server_locked(server);
-	put_unaligned(x, (__le32 *) (&(server->packet[server->current_size])));
-	server->current_size += 4;
-	return;
-}
-
-static void ncp_add_be32(struct ncp_server *server, __u32 x)
-{
-	assert_server_locked(server);
-	put_unaligned(cpu_to_be32(x), (__be32 *)(&(server->packet[server->current_size])));
-	server->current_size += 4;
-}
-
-static inline void ncp_add_dword_lh(struct ncp_server *server, __u32 x) {
-	ncp_add_dword(server, cpu_to_le32(x));
-}
-
-static void ncp_add_mem(struct ncp_server *server, const void *source, int size)
-{
-	assert_server_locked(server);
-	memcpy(&(server->packet[server->current_size]), source, size);
-	server->current_size += size;
-	return;
-}
-
-static void ncp_add_pstring(struct ncp_server *server, const char *s)
-{
-	int len = strlen(s);
-	assert_server_locked(server);
-	if (len > 255) {
-		ncp_dbg(1, "string too long: %s\n", s);
-		len = 255;
-	}
-	ncp_add_byte(server, len);
-	ncp_add_mem(server, s, len);
-	return;
-}
-
-static inline void ncp_init_request(struct ncp_server *server)
-{
-	ncp_lock_server(server);
-
-	server->current_size = sizeof(struct ncp_request_header);
-	server->has_subfunction = 0;
-}
-
-static inline void ncp_init_request_s(struct ncp_server *server, int subfunction)
-{
-	ncp_lock_server(server);
-	
-	server->current_size = sizeof(struct ncp_request_header) + 2;
-	ncp_add_byte(server, subfunction);
-
-	server->has_subfunction = 1;
-}
-
-static inline char *
-ncp_reply_data(struct ncp_server *server, int offset)
-{
-	return &(server->packet[sizeof(struct ncp_reply_header) + offset]);
-}
-
-static inline u8 BVAL(const void *data)
-{
-	return *(const u8 *)data;
-}
-
-static u8 ncp_reply_byte(struct ncp_server *server, int offset)
-{
-	return *(const u8 *)ncp_reply_data(server, offset);
-}
-
-static inline u16 WVAL_LH(const void *data)
-{
-	return get_unaligned_le16(data);
-}
-
-static u16
-ncp_reply_le16(struct ncp_server *server, int offset)
-{
-	return get_unaligned_le16(ncp_reply_data(server, offset));
-}
-
-static u16
-ncp_reply_be16(struct ncp_server *server, int offset)
-{
-	return get_unaligned_be16(ncp_reply_data(server, offset));
-}
-
-static inline u32 DVAL_LH(const void *data)
-{
-	return get_unaligned_le32(data);
-}
-
-static __le32
-ncp_reply_dword(struct ncp_server *server, int offset)
-{
-	return get_unaligned((__le32 *)ncp_reply_data(server, offset));
-}
-
-static inline __u32 ncp_reply_dword_lh(struct ncp_server* server, int offset) {
-	return le32_to_cpu(ncp_reply_dword(server, offset));
-}
-
-int
-ncp_negotiate_buffersize(struct ncp_server *server, int size, int *target)
-{
-	int result;
-
-	ncp_init_request(server);
-	ncp_add_be16(server, size);
-
-	if ((result = ncp_request(server, 33)) != 0) {
-		ncp_unlock_server(server);
-		return result;
-	}
-	*target = min_t(unsigned int, ncp_reply_be16(server, 0), size);
-
-	ncp_unlock_server(server);
-	return 0;
-}
-
-
-/* options: 
- *	bit 0	ipx checksum
- *	bit 1	packet signing
- */
-int
-ncp_negotiate_size_and_options(struct ncp_server *server, 
-	int size, int options, int *ret_size, int *ret_options) {
-	int result;
-
-	/* there is minimum */
-	if (size < NCP_BLOCK_SIZE) size = NCP_BLOCK_SIZE;
-
-	ncp_init_request(server);
-	ncp_add_be16(server, size);
-	ncp_add_byte(server, options);
-	
-	if ((result = ncp_request(server, 0x61)) != 0)
-	{
-		ncp_unlock_server(server);
-		return result;
-	}
-
-	/* NCP over UDP returns 0 (!!!) */
-	result = ncp_reply_be16(server, 0);
-	if (result >= NCP_BLOCK_SIZE)
-		size = min(result, size);
-	*ret_size = size;
-	*ret_options = ncp_reply_byte(server, 4);
-
-	ncp_unlock_server(server);
-	return 0;
-}
-
-int ncp_get_volume_info_with_number(struct ncp_server* server,
-			     int n, struct ncp_volume_info* target) {
-	int result;
-	int len;
-
-	ncp_init_request_s(server, 44);
-	ncp_add_byte(server, n);
-
-	if ((result = ncp_request(server, 22)) != 0) {
-		goto out;
-	}
-	target->total_blocks = ncp_reply_dword_lh(server, 0);
-	target->free_blocks = ncp_reply_dword_lh(server, 4);
-	target->purgeable_blocks = ncp_reply_dword_lh(server, 8);
-	target->not_yet_purgeable_blocks = ncp_reply_dword_lh(server, 12);
-	target->total_dir_entries = ncp_reply_dword_lh(server, 16);
-	target->available_dir_entries = ncp_reply_dword_lh(server, 20);
-	target->sectors_per_block = ncp_reply_byte(server, 28);
-
-	memset(&(target->volume_name), 0, sizeof(target->volume_name));
-
-	result = -EIO;
-	len = ncp_reply_byte(server, 29);
-	if (len > NCP_VOLNAME_LEN) {
-		ncp_dbg(1, "volume name too long: %d\n", len);
-		goto out;
-	}
-	memcpy(&(target->volume_name), ncp_reply_data(server, 30), len);
-	result = 0;
-out:
-	ncp_unlock_server(server);
-	return result;
-}
-
-int ncp_get_directory_info(struct ncp_server* server, __u8 n, 
-			   struct ncp_volume_info* target) {
-	int result;
-	int len;
-
-	ncp_init_request_s(server, 45);
-	ncp_add_byte(server, n);
-
-	if ((result = ncp_request(server, 22)) != 0) {
-		goto out;
-	}
-	target->total_blocks = ncp_reply_dword_lh(server, 0);
-	target->free_blocks = ncp_reply_dword_lh(server, 4);
-	target->purgeable_blocks = 0;
-	target->not_yet_purgeable_blocks = 0;
-	target->total_dir_entries = ncp_reply_dword_lh(server, 8);
-	target->available_dir_entries = ncp_reply_dword_lh(server, 12);
-	target->sectors_per_block = ncp_reply_byte(server, 20);
-
-	memset(&(target->volume_name), 0, sizeof(target->volume_name));
-
-	result = -EIO;
-	len = ncp_reply_byte(server, 21);
-	if (len > NCP_VOLNAME_LEN) {
-		ncp_dbg(1, "volume name too long: %d\n", len);
-		goto out;
-	}
-	memcpy(&(target->volume_name), ncp_reply_data(server, 22), len);
-	result = 0;
-out:
-	ncp_unlock_server(server);
-	return result;
-}
-
-int
-ncp_close_file(struct ncp_server *server, const char *file_id)
-{
-	int result;
-
-	ncp_init_request(server);
-	ncp_add_byte(server, 0);
-	ncp_add_mem(server, file_id, 6);
-
-	result = ncp_request(server, 66);
-	ncp_unlock_server(server);
-	return result;
-}
-
-int
-ncp_make_closed(struct inode *inode)
-{
-	int err;
-
-	err = 0;
-	mutex_lock(&NCP_FINFO(inode)->open_mutex);
-	if (atomic_read(&NCP_FINFO(inode)->opened) == 1) {
-		atomic_set(&NCP_FINFO(inode)->opened, 0);
-		err = ncp_close_file(NCP_SERVER(inode), NCP_FINFO(inode)->file_handle);
-
-		if (!err)
-			ncp_vdbg("volnum=%d, dirent=%u, error=%d\n",
-				 NCP_FINFO(inode)->volNumber,
-				 NCP_FINFO(inode)->dirEntNum, err);
-	}
-	mutex_unlock(&NCP_FINFO(inode)->open_mutex);
-	return err;
-}
-
-static void ncp_add_handle_path(struct ncp_server *server, __u8 vol_num,
-				__le32 dir_base, int have_dir_base, 
-				const char *path)
-{
-	ncp_add_byte(server, vol_num);
-	ncp_add_dword(server, dir_base);
-	if (have_dir_base != 0) {
-		ncp_add_byte(server, 1);	/* dir_base */
-	} else {
-		ncp_add_byte(server, 0xff);	/* no handle */
-	}
-	if (path != NULL) {
-		ncp_add_byte(server, 1);	/* 1 component */
-		ncp_add_pstring(server, path);
-	} else {
-		ncp_add_byte(server, 0);
-	}
-}
-
-int ncp_dirhandle_alloc(struct ncp_server* server, __u8 volnum, __le32 dirent,
-			__u8* dirhandle) {
-	int result;
-
-	ncp_init_request(server);
-	ncp_add_byte(server, 12);		/* subfunction */
-	ncp_add_byte(server, NW_NS_DOS);
-	ncp_add_byte(server, 0);
-	ncp_add_word(server, 0);
-	ncp_add_handle_path(server, volnum, dirent, 1, NULL);
-	if ((result = ncp_request(server, 87)) == 0) {
-		*dirhandle = ncp_reply_byte(server, 0);
-	}
-	ncp_unlock_server(server);
-	return result;
-}
-
-int ncp_dirhandle_free(struct ncp_server* server, __u8 dirhandle) {
-	int result;
-	
-	ncp_init_request_s(server, 20);
-	ncp_add_byte(server, dirhandle);
-	result = ncp_request(server, 22);
-	ncp_unlock_server(server);
-	return result;
-}
-
-void ncp_extract_file_info(const void *structure, struct nw_info_struct *target)
-{
-	const __u8 *name_len;
-	const int info_struct_size = offsetof(struct nw_info_struct, nameLen);
-
-	memcpy(target, structure, info_struct_size);
-	name_len = structure + info_struct_size;
-	target->nameLen = *name_len;
-	memcpy(target->entryName, name_len + 1, *name_len);
-	target->entryName[*name_len] = '\0';
-	target->volNumber = le32_to_cpu(target->volNumber);
-	return;
-}
-
-#ifdef CONFIG_NCPFS_NFS_NS
-static inline void ncp_extract_nfs_info(const unsigned char *structure,
-				 struct nw_nfs_info *target)
-{
-	target->mode = DVAL_LH(structure);
-	target->rdev = DVAL_LH(structure + 8);
-}
-#endif
-
-int ncp_obtain_nfs_info(struct ncp_server *server,
-		        struct nw_info_struct *target)
-
-{
-	int result = 0;
-#ifdef CONFIG_NCPFS_NFS_NS
-	__u32 volnum = target->volNumber;
-
-	if (ncp_is_nfs_extras(server, volnum)) {
-		ncp_init_request(server);
-		ncp_add_byte(server, 19);	/* subfunction */
-		ncp_add_byte(server, server->name_space[volnum]);
-		ncp_add_byte(server, NW_NS_NFS);
-		ncp_add_byte(server, 0);
-		ncp_add_byte(server, volnum);
-		ncp_add_dword(server, target->dirEntNum);
-		/* We must retrieve both nlinks and rdev, otherwise some server versions
-		   report zeroes instead of valid data */
-		ncp_add_dword_lh(server, NSIBM_NFS_MODE | NSIBM_NFS_NLINKS | NSIBM_NFS_RDEV);
-
-		if ((result = ncp_request(server, 87)) == 0) {
-			ncp_extract_nfs_info(ncp_reply_data(server, 0), &target->nfs);
-			ncp_dbg(1, "(%s) mode=0%o, rdev=0x%x\n",
-				target->entryName, target->nfs.mode,
-				target->nfs.rdev);
-		} else {
-			target->nfs.mode = 0;
-			target->nfs.rdev = 0;
-		}
-	        ncp_unlock_server(server);
-
-	} else
-#endif
-	{
-		target->nfs.mode = 0;
-		target->nfs.rdev = 0;
-	}
-	return result;
-}
-
-/*
- * Returns information for a (one-component) name relative to
- * the specified directory.
- */
-int ncp_obtain_info(struct ncp_server *server, struct inode *dir, const char *path,
-			struct nw_info_struct *target)
-{
-	__u8  volnum = NCP_FINFO(dir)->volNumber;
-	__le32 dirent = NCP_FINFO(dir)->dirEntNum;
-	int result;
-
-	if (target == NULL) {
-		pr_err("%s: invalid call\n", __func__);
-		return -EINVAL;
-	}
-	ncp_init_request(server);
-	ncp_add_byte(server, 6);	/* subfunction */
-	ncp_add_byte(server, server->name_space[volnum]);
-	ncp_add_byte(server, server->name_space[volnum]); /* N.B. twice ?? */
-	ncp_add_word(server, cpu_to_le16(0x8006));	/* get all */
-	ncp_add_dword(server, RIM_ALL);
-	ncp_add_handle_path(server, volnum, dirent, 1, path);
-
-	if ((result = ncp_request(server, 87)) != 0)
-		goto out;
-	ncp_extract_file_info(ncp_reply_data(server, 0), target);
-	ncp_unlock_server(server);
-	
-	result = ncp_obtain_nfs_info(server, target);
-	return result;
-
-out:
-	ncp_unlock_server(server);
-	return result;
-}
-
-#ifdef CONFIG_NCPFS_NFS_NS
-static int
-ncp_obtain_DOS_dir_base(struct ncp_server *server,
-		__u8 ns, __u8 volnum, __le32 dirent,
-		const char *path, /* At most 1 component */
-		__le32 *DOS_dir_base)
-{
-	int result;
-
-	ncp_init_request(server);
-	ncp_add_byte(server, 6); /* subfunction */
-	ncp_add_byte(server, ns);
-	ncp_add_byte(server, ns);
-	ncp_add_word(server, cpu_to_le16(0x8006)); /* get all */
-	ncp_add_dword(server, RIM_DIRECTORY);
-	ncp_add_handle_path(server, volnum, dirent, 1, path);
-
-	if ((result = ncp_request(server, 87)) == 0)
-	{
-	   	if (DOS_dir_base) *DOS_dir_base=ncp_reply_dword(server, 0x34);
-	}
-	ncp_unlock_server(server);
-	return result;
-}
-#endif /* CONFIG_NCPFS_NFS_NS */
-
-static inline int
-ncp_get_known_namespace(struct ncp_server *server, __u8 volume)
-{
-#if defined(CONFIG_NCPFS_OS2_NS) || defined(CONFIG_NCPFS_NFS_NS)
-	int result;
-	__u8 *namespace;
-	__u16 no_namespaces;
-
-	ncp_init_request(server);
-	ncp_add_byte(server, 24);	/* Subfunction: Get Name Spaces Loaded */
-	ncp_add_word(server, 0);
-	ncp_add_byte(server, volume);
-
-	if ((result = ncp_request(server, 87)) != 0) {
-		ncp_unlock_server(server);
-		return NW_NS_DOS; /* not result ?? */
-	}
-
-	result = NW_NS_DOS;
-	no_namespaces = ncp_reply_le16(server, 0);
-	namespace = ncp_reply_data(server, 2);
-
-	while (no_namespaces > 0) {
-		ncp_dbg(1, "found %d on %d\n", *namespace, volume);
-
-#ifdef CONFIG_NCPFS_NFS_NS
-		if ((*namespace == NW_NS_NFS) && !(server->m.flags&NCP_MOUNT_NO_NFS)) 
-		{
-			result = NW_NS_NFS;
-			break;
-		}
-#endif	/* CONFIG_NCPFS_NFS_NS */
-#ifdef CONFIG_NCPFS_OS2_NS
-		if ((*namespace == NW_NS_OS2) && !(server->m.flags&NCP_MOUNT_NO_OS2))
-		{
-			result = NW_NS_OS2;
-		}
-#endif	/* CONFIG_NCPFS_OS2_NS */
-		namespace += 1;
-		no_namespaces -= 1;
-	}
-	ncp_unlock_server(server);
-	return result;
-#else	/* neither OS2 nor NFS - only DOS */
-	return NW_NS_DOS;
-#endif	/* defined(CONFIG_NCPFS_OS2_NS) || defined(CONFIG_NCPFS_NFS_NS) */
-}
-
-int
-ncp_update_known_namespace(struct ncp_server *server, __u8 volume, int *ret_ns)
-{
-	int ns = ncp_get_known_namespace(server, volume);
-
-	if (ret_ns)
-		*ret_ns = ns;
-
-	ncp_dbg(1, "namespace[%d] = %d\n", volume, server->name_space[volume]);
-
-	if (server->name_space[volume] == ns)
-		return 0;
-	server->name_space[volume] = ns;
-	return 1;
-}
-
-static int
-ncp_ObtainSpecificDirBase(struct ncp_server *server,
-		__u8 nsSrc, __u8 nsDst, __u8 vol_num, __le32 dir_base,
-		const char *path, /* At most 1 component */
-		__le32 *dirEntNum, __le32 *DosDirNum)
-{
-	int result;
-
-	ncp_init_request(server);
-	ncp_add_byte(server, 6); /* subfunction */
-	ncp_add_byte(server, nsSrc);
-	ncp_add_byte(server, nsDst);
-	ncp_add_word(server, cpu_to_le16(0x8006)); /* get all */
-	ncp_add_dword(server, RIM_ALL);
-	ncp_add_handle_path(server, vol_num, dir_base, 1, path);
-
-	if ((result = ncp_request(server, 87)) != 0)
-	{
-		ncp_unlock_server(server);
-		return result;
-	}
-
-	if (dirEntNum)
-		*dirEntNum = ncp_reply_dword(server, 0x30);
-	if (DosDirNum)
-		*DosDirNum = ncp_reply_dword(server, 0x34);
-	ncp_unlock_server(server);
-	return 0;
-}
-
-int
-ncp_mount_subdir(struct ncp_server *server,
-		 __u8 volNumber, __u8 srcNS, __le32 dirEntNum,
-		 __u32* volume, __le32* newDirEnt, __le32* newDosEnt)
-{
-	int dstNS;
-	int result;
-
-	ncp_update_known_namespace(server, volNumber, &dstNS);
-	if ((result = ncp_ObtainSpecificDirBase(server, srcNS, dstNS, volNumber, 
-				      dirEntNum, NULL, newDirEnt, newDosEnt)) != 0)
-	{
-		return result;
-	}
-	*volume = volNumber;
-	server->m.mounted_vol[1] = 0;
-	server->m.mounted_vol[0] = 'X';
-	return 0;
-}
-
-int 
-ncp_get_volume_root(struct ncp_server *server,
-		    const char *volname, __u32* volume, __le32* dirent, __le32* dosdirent)
-{
-	int result;
-
-	ncp_dbg(1, "looking up vol %s\n", volname);
-
-	ncp_init_request(server);
-	ncp_add_byte(server, 22);	/* Subfunction: Generate dir handle */
-	ncp_add_byte(server, 0);	/* DOS namespace */
-	ncp_add_byte(server, 0);	/* reserved */
-	ncp_add_byte(server, 0);	/* reserved */
-	ncp_add_byte(server, 0);	/* reserved */
-
-	ncp_add_byte(server, 0);	/* faked volume number */
-	ncp_add_dword(server, 0);	/* faked dir_base */
-	ncp_add_byte(server, 0xff);	/* Don't have a dir_base */
-	ncp_add_byte(server, 1);	/* 1 path component */
-	ncp_add_pstring(server, volname);
-
-	if ((result = ncp_request(server, 87)) != 0) {
-		ncp_unlock_server(server);
-		return result;
-	}
-	*dirent = *dosdirent = ncp_reply_dword(server, 4);
-	*volume = ncp_reply_byte(server, 8);
-	ncp_unlock_server(server);
-	return 0;
-}
-
-int
-ncp_lookup_volume(struct ncp_server *server,
-		  const char *volname, struct nw_info_struct *target)
-{
-	int result;
-
-	memset(target, 0, sizeof(*target));
-	result = ncp_get_volume_root(server, volname,
-			&target->volNumber, &target->dirEntNum, &target->DosDirNum);
-	if (result) {
-		return result;
-	}
-	ncp_update_known_namespace(server, target->volNumber, NULL);
-	target->nameLen = strlen(volname);
-	memcpy(target->entryName, volname, target->nameLen+1);
-	target->attributes = aDIR;
-	/* set dates to Jan 1, 1986  00:00 */
-	target->creationTime = target->modifyTime = cpu_to_le16(0x0000);
-	target->creationDate = target->modifyDate = target->lastAccessDate = cpu_to_le16(0x0C21);
-	target->nfs.mode = 0;
-	return 0;
-}
-
-int ncp_modify_file_or_subdir_dos_info_path(struct ncp_server *server,
-					    struct inode *dir,
-					    const char *path,
-					    __le32 info_mask,
-					    const struct nw_modify_dos_info *info)
-{
-	__u8  volnum = NCP_FINFO(dir)->volNumber;
-	__le32 dirent = NCP_FINFO(dir)->dirEntNum;
-	int result;
-
-	ncp_init_request(server);
-	ncp_add_byte(server, 7);	/* subfunction */
-	ncp_add_byte(server, server->name_space[volnum]);
-	ncp_add_byte(server, 0);	/* reserved */
-	ncp_add_word(server, cpu_to_le16(0x8006));	/* search attribs: all */
-
-	ncp_add_dword(server, info_mask);
-	ncp_add_mem(server, info, sizeof(*info));
-	ncp_add_handle_path(server, volnum, dirent, 1, path);
-
-	result = ncp_request(server, 87);
-	ncp_unlock_server(server);
-	return result;
-}
-
-int ncp_modify_file_or_subdir_dos_info(struct ncp_server *server,
-				       struct inode *dir,
-				       __le32 info_mask,
-				       const struct nw_modify_dos_info *info)
-{
-	return ncp_modify_file_or_subdir_dos_info_path(server, dir, NULL,
-		info_mask, info);
-}
-
-#ifdef CONFIG_NCPFS_NFS_NS
-int ncp_modify_nfs_info(struct ncp_server *server, __u8 volnum, __le32 dirent,
-			       __u32 mode, __u32 rdev)
-
-{
-	int result = 0;
-
-	ncp_init_request(server);
-	if (server->name_space[volnum] == NW_NS_NFS) {
-		ncp_add_byte(server, 25);	/* subfunction */
-		ncp_add_byte(server, server->name_space[volnum]);
-		ncp_add_byte(server, NW_NS_NFS);
-		ncp_add_byte(server, volnum);
-		ncp_add_dword(server, dirent);
-		/* we must always operate on both nlinks and rdev, otherwise
-		   rdev is not set */
-		ncp_add_dword_lh(server, NSIBM_NFS_MODE | NSIBM_NFS_NLINKS | NSIBM_NFS_RDEV);
-		ncp_add_dword_lh(server, mode);
-		ncp_add_dword_lh(server, 1);	/* nlinks */
-		ncp_add_dword_lh(server, rdev);
-		result = ncp_request(server, 87);
-	}
-	ncp_unlock_server(server);
-	return result;
-}
-#endif
-
-
-static int
-ncp_DeleteNSEntry(struct ncp_server *server,
-		  __u8 have_dir_base, __u8 volnum, __le32 dirent,
-		  const char* name, __u8 ns, __le16 attr)
-{
-	int result;
-
-	ncp_init_request(server);
-	ncp_add_byte(server, 8);	/* subfunction */
-	ncp_add_byte(server, ns);
-	ncp_add_byte(server, 0);	/* reserved */
-	ncp_add_word(server, attr);	/* search attribs: all */
-	ncp_add_handle_path(server, volnum, dirent, have_dir_base, name);
-
-	result = ncp_request(server, 87);
-	ncp_unlock_server(server);
-	return result;
-}
-
-int
-ncp_del_file_or_subdir2(struct ncp_server *server,
-			struct dentry *dentry)
-{
-	struct inode *inode = d_inode(dentry);
-	__u8  volnum;
-	__le32 dirent;
-
-	if (!inode) {
-		return 0xFF;	/* Any error */
-	}
-	volnum = NCP_FINFO(inode)->volNumber;
-	dirent = NCP_FINFO(inode)->DosDirNum;
-	return ncp_DeleteNSEntry(server, 1, volnum, dirent, NULL, NW_NS_DOS, cpu_to_le16(0x8006));
-}
-
-int
-ncp_del_file_or_subdir(struct ncp_server *server,
-		       struct inode *dir, const char *name)
-{
-	__u8  volnum = NCP_FINFO(dir)->volNumber;
-	__le32 dirent = NCP_FINFO(dir)->dirEntNum;
-	int name_space;
-
-	name_space = server->name_space[volnum];
-#ifdef CONFIG_NCPFS_NFS_NS
-	if (name_space == NW_NS_NFS)
- 	{
- 		int result;
- 
-		result=ncp_obtain_DOS_dir_base(server, name_space, volnum, dirent, name, &dirent);
- 		if (result) return result;
-		name = NULL;
-		name_space = NW_NS_DOS;
- 	}
-#endif	/* CONFIG_NCPFS_NFS_NS */
-	return ncp_DeleteNSEntry(server, 1, volnum, dirent, name, name_space, cpu_to_le16(0x8006));
-}
-
-static inline void ConvertToNWfromDWORD(__u16 v0, __u16 v1, __u8 ret[6])
-{
-	__le16 *dest = (__le16 *) ret;
-	dest[1] = cpu_to_le16(v0);
-	dest[2] = cpu_to_le16(v1);
-	dest[0] = cpu_to_le16(v0 + 1);
-	return;
-}
-
-/* If both dir and name are NULL, then in target there's already a
-   looked-up entry that wants to be opened. */
-int ncp_open_create_file_or_subdir(struct ncp_server *server,
-				   struct inode *dir, const char *name,
-				   int open_create_mode,
-				   __le32 create_attributes,
-				   __le16 desired_acc_rights,
-				   struct ncp_entry_info *target)
-{
-	__le16 search_attribs = cpu_to_le16(0x0006);
-	__u8  volnum;
-	__le32 dirent;
-	int result;
-
-	volnum = NCP_FINFO(dir)->volNumber;
-	dirent = NCP_FINFO(dir)->dirEntNum;
-
-	if ((create_attributes & aDIR) != 0) {
-		search_attribs |= cpu_to_le16(0x8000);
-	}
-	ncp_init_request(server);
-	ncp_add_byte(server, 1);	/* subfunction */
-	ncp_add_byte(server, server->name_space[volnum]);
-	ncp_add_byte(server, open_create_mode);
-	ncp_add_word(server, search_attribs);
-	ncp_add_dword(server, RIM_ALL);
-	ncp_add_dword(server, create_attributes);
-	/* The desired acc rights seem to be the inherited rights mask
-	   for directories */
-	ncp_add_word(server, desired_acc_rights);
-	ncp_add_handle_path(server, volnum, dirent, 1, name);
-
-	if ((result = ncp_request(server, 87)) != 0)
-		goto out;
-	if (!(create_attributes & aDIR))
-		target->opened = 1;
-
-	/* in target there's a new finfo to fill */
-	ncp_extract_file_info(ncp_reply_data(server, 6), &(target->i));
-	target->volume = target->i.volNumber;
-	ConvertToNWfromDWORD(ncp_reply_le16(server, 0),
-			     ncp_reply_le16(server, 2),
-			     target->file_handle);
-	
-	ncp_unlock_server(server);
-
-	(void)ncp_obtain_nfs_info(server, &(target->i));
-	return 0;
-
-out:
-	ncp_unlock_server(server);
-	return result;
-}
-
-int
-ncp_initialize_search(struct ncp_server *server, struct inode *dir,
-			struct nw_search_sequence *target)
-{
-	__u8  volnum = NCP_FINFO(dir)->volNumber;
-	__le32 dirent = NCP_FINFO(dir)->dirEntNum;
-	int result;
-
-	ncp_init_request(server);
-	ncp_add_byte(server, 2);	/* subfunction */
-	ncp_add_byte(server, server->name_space[volnum]);
-	ncp_add_byte(server, 0);	/* reserved */
-	ncp_add_handle_path(server, volnum, dirent, 1, NULL);
-
-	result = ncp_request(server, 87);
-	if (result)
-		goto out;
-	memcpy(target, ncp_reply_data(server, 0), sizeof(*target));
-
-out:
-	ncp_unlock_server(server);
-	return result;
-}
-
-int ncp_search_for_fileset(struct ncp_server *server,
-			   struct nw_search_sequence *seq,
-			   int* more,
-			   int* cnt,
-			   char* buffer,
-			   size_t bufsize,
-			   char** rbuf,
-			   size_t* rsize)
-{
-	int result;
-
-	ncp_init_request(server);
-	ncp_add_byte(server, 20);
-	ncp_add_byte(server, server->name_space[seq->volNumber]);
-	ncp_add_byte(server, 0);		/* datastream */
-	ncp_add_word(server, cpu_to_le16(0x8006));
-	ncp_add_dword(server, RIM_ALL);
-	ncp_add_word(server, cpu_to_le16(32767));	/* max returned items */
-	ncp_add_mem(server, seq, 9);
-#ifdef CONFIG_NCPFS_NFS_NS
-	if (server->name_space[seq->volNumber] == NW_NS_NFS) {
-		ncp_add_byte(server, 0);	/* 0 byte pattern */
-	} else 
-#endif
-	{
-		ncp_add_byte(server, 2);	/* 2 byte pattern */
-		ncp_add_byte(server, 0xff);	/* following is a wildcard */
-		ncp_add_byte(server, '*');
-	}
-	result = ncp_request2(server, 87, buffer, bufsize);
-	if (result) {
-		ncp_unlock_server(server);
-		return result;
-	}
-	if (server->ncp_reply_size < 12) {
-		ncp_unlock_server(server);
-		return 0xFF;
-	}
-	*rsize = server->ncp_reply_size - 12;
-	ncp_unlock_server(server);
-	buffer = buffer + sizeof(struct ncp_reply_header);
-	*rbuf = buffer + 12;
-	*cnt = WVAL_LH(buffer + 10);
-	*more = BVAL(buffer + 9);
-	memcpy(seq, buffer, 9);
-	return 0;
-}
-
-static int
-ncp_RenameNSEntry(struct ncp_server *server,
-		  struct inode *old_dir, const char *old_name, __le16 old_type,
-		  struct inode *new_dir, const char *new_name)
-{
-	int result = -EINVAL;
-
-	if ((old_dir == NULL) || (old_name == NULL) ||
-	    (new_dir == NULL) || (new_name == NULL))
-		goto out;
-
-	ncp_init_request(server);
-	ncp_add_byte(server, 4);	/* subfunction */
-	ncp_add_byte(server, server->name_space[NCP_FINFO(old_dir)->volNumber]);
-	ncp_add_byte(server, 1);	/* rename flag */
-	ncp_add_word(server, old_type);	/* search attributes */
-
-	/* source Handle Path */
-	ncp_add_byte(server, NCP_FINFO(old_dir)->volNumber);
-	ncp_add_dword(server, NCP_FINFO(old_dir)->dirEntNum);
-	ncp_add_byte(server, 1);
-	ncp_add_byte(server, 1);	/* 1 source component */
-
-	/* dest Handle Path */
-	ncp_add_byte(server, NCP_FINFO(new_dir)->volNumber);
-	ncp_add_dword(server, NCP_FINFO(new_dir)->dirEntNum);
-	ncp_add_byte(server, 1);
-	ncp_add_byte(server, 1);	/* 1 destination component */
-
-	/* source path string */
-	ncp_add_pstring(server, old_name);
-	/* dest path string */
-	ncp_add_pstring(server, new_name);
-
-	result = ncp_request(server, 87);
-	ncp_unlock_server(server);
-out:
-	return result;
-}
-
-int ncp_ren_or_mov_file_or_subdir(struct ncp_server *server,
-				struct inode *old_dir, const char *old_name,
-				struct inode *new_dir, const char *new_name)
-{
-        int result;
-        __le16 old_type = cpu_to_le16(0x06);
-
-/* If somebody can do it atomic, call me... vandrove@vc.cvut.cz */
-	result = ncp_RenameNSEntry(server, old_dir, old_name, old_type,
-	                                   new_dir, new_name);
-        if (result == 0xFF)	/* File Not Found, try directory */
-	{
-		old_type = cpu_to_le16(0x16);
-		result = ncp_RenameNSEntry(server, old_dir, old_name, old_type,
-						   new_dir, new_name);
-	}
-	if (result != 0x92) return result;	/* All except NO_FILES_RENAMED */
-	result = ncp_del_file_or_subdir(server, new_dir, new_name);
-	if (result != 0) return -EACCES;
-	result = ncp_RenameNSEntry(server, old_dir, old_name, old_type,
-					   new_dir, new_name);
-	return result;
-}
-	
-
-/* We have to transfer to/from user space */
-int
-ncp_read_kernel(struct ncp_server *server, const char *file_id,
-	     __u32 offset, __u16 to_read, char *target, int *bytes_read)
-{
-	const char *source;
-	int result;
-
-	ncp_init_request(server);
-	ncp_add_byte(server, 0);
-	ncp_add_mem(server, file_id, 6);
-	ncp_add_be32(server, offset);
-	ncp_add_be16(server, to_read);
-
-	if ((result = ncp_request(server, 72)) != 0) {
-		goto out;
-	}
-	*bytes_read = ncp_reply_be16(server, 0);
-	source = ncp_reply_data(server, 2 + (offset & 1));
-
-	memcpy(target, source, *bytes_read);
-out:
-	ncp_unlock_server(server);
-	return result;
-}
-
-/* There is a problem... egrep and some other silly tools do:
-	x = mmap(NULL, MAP_PRIVATE, PROT_READ|PROT_WRITE, <ncpfs fd>, 32768);
-	read(<ncpfs fd>, x, 32768);
-   Now copying read result by copy_to_user causes pagefault. This pagefault
-   could not be handled because of server was locked due to read. So we have
-   to use temporary buffer. So ncp_unlock_server must be done before
-   copy_to_user (and for write, copy_from_user must be done before 
-   ncp_init_request... same applies for send raw packet ioctl). Because of
-   file is normally read in bigger chunks, caller provides kmalloced 
-   (vmalloced) chunk of memory with size >= to_read...
- */
-int
-ncp_read_bounce(struct ncp_server *server, const char *file_id,
-	 __u32 offset, __u16 to_read, struct iov_iter *to,
-	 int *bytes_read, void *bounce, __u32 bufsize)
-{
-	int result;
-
-	ncp_init_request(server);
-	ncp_add_byte(server, 0);
-	ncp_add_mem(server, file_id, 6);
-	ncp_add_be32(server, offset);
-	ncp_add_be16(server, to_read);
-	result = ncp_request2(server, 72, bounce, bufsize);
-	ncp_unlock_server(server);
-	if (!result) {
-		int len = get_unaligned_be16((char *)bounce +
-			  sizeof(struct ncp_reply_header));
-		result = -EIO;
-		if (len <= to_read) {
-			char* source;
-
-			source = (char*)bounce + 
-			         sizeof(struct ncp_reply_header) + 2 + 
-			         (offset & 1);
-			*bytes_read = len;
-			result = 0;
-			if (copy_to_iter(source, len, to) != len)
-				result = -EFAULT;
-		}
-	}
-	return result;
-}
-
-int
-ncp_write_kernel(struct ncp_server *server, const char *file_id,
-		 __u32 offset, __u16 to_write,
-		 const char *source, int *bytes_written)
-{
-	int result;
-
-	ncp_init_request(server);
-	ncp_add_byte(server, 0);
-	ncp_add_mem(server, file_id, 6);
-	ncp_add_be32(server, offset);
-	ncp_add_be16(server, to_write);
-	ncp_add_mem(server, source, to_write);
-	
-	if ((result = ncp_request(server, 73)) == 0)
-		*bytes_written = to_write;
-	ncp_unlock_server(server);
-	return result;
-}
-
-#ifdef CONFIG_NCPFS_IOCTL_LOCKING
-int
-ncp_LogPhysicalRecord(struct ncp_server *server, const char *file_id,
-	  __u8 locktype, __u32 offset, __u32 length, __u16 timeout)
-{
-	int result;
-
-	ncp_init_request(server);
-	ncp_add_byte(server, locktype);
-	ncp_add_mem(server, file_id, 6);
-	ncp_add_be32(server, offset);
-	ncp_add_be32(server, length);
-	ncp_add_be16(server, timeout);
-
-	if ((result = ncp_request(server, 0x1A)) != 0)
-	{
-		ncp_unlock_server(server);
-		return result;
-	}
-	ncp_unlock_server(server);
-	return 0;
-}
-
-int
-ncp_ClearPhysicalRecord(struct ncp_server *server, const char *file_id,
-	  __u32 offset, __u32 length)
-{
-	int result;
-
-	ncp_init_request(server);
-	ncp_add_byte(server, 0);	/* who knows... lanalyzer says that */
-	ncp_add_mem(server, file_id, 6);
-	ncp_add_be32(server, offset);
-	ncp_add_be32(server, length);
-
-	if ((result = ncp_request(server, 0x1E)) != 0)
-	{
-		ncp_unlock_server(server);
-		return result;
-	}
-	ncp_unlock_server(server);
-	return 0;
-}
-#endif	/* CONFIG_NCPFS_IOCTL_LOCKING */
-
-#ifdef CONFIG_NCPFS_NLS
-/* This are the NLS conversion routines with inspirations and code parts
- * from the vfat file system and hints from Petr Vandrovec.
- */
-
-int
-ncp__io2vol(struct ncp_server *server, unsigned char *vname, unsigned int *vlen,
-		const unsigned char *iname, unsigned int ilen, int cc)
-{
-	struct nls_table *in = server->nls_io;
-	struct nls_table *out = server->nls_vol;
-	unsigned char *vname_start;
-	unsigned char *vname_end;
-	const unsigned char *iname_end;
-
-	iname_end = iname + ilen;
-	vname_start = vname;
-	vname_end = vname + *vlen - 1;
-
-	while (iname < iname_end) {
-		int chl;
-		wchar_t ec;
-
-		if (NCP_IS_FLAG(server, NCP_FLAG_UTF8)) {
-			int k;
-			unicode_t u;
-
-			k = utf8_to_utf32(iname, iname_end - iname, &u);
-			if (k < 0 || u > MAX_WCHAR_T)
-				return -EINVAL;
-			iname += k;
-			ec = u;
-		} else {
-			if (*iname == NCP_ESC) {
-				int k;
-
-				if (iname_end - iname < 5)
-					goto nospec;
-
-				ec = 0;
-				for (k = 1; k < 5; k++) {
-					unsigned char nc;
-
-					nc = iname[k] - '0';
-					if (nc >= 10) {
-						nc -= 'A' - '0' - 10;
-						if ((nc < 10) || (nc > 15)) {
-							goto nospec;
-						}
-					}
-					ec = (ec << 4) | nc;
-				}
-				iname += 5;
-			} else {
-nospec:;			
-				if ( (chl = in->char2uni(iname, iname_end - iname, &ec)) < 0)
-					return chl;
-				iname += chl;
-			}
-		}
-
-		/* unitoupper should be here! */
-
-		chl = out->uni2char(ec, vname, vname_end - vname);
-		if (chl < 0)
-			return chl;
-
-		/* this is wrong... */
-		if (cc) {
-			int chi;
-
-			for (chi = 0; chi < chl; chi++){
-				vname[chi] = ncp_toupper(out, vname[chi]);
-			}
-		}
-		vname += chl;
-	}
-
-	*vname = 0;
-	*vlen = vname - vname_start;
-	return 0;
-}
-
-int
-ncp__vol2io(struct ncp_server *server, unsigned char *iname, unsigned int *ilen,
-		const unsigned char *vname, unsigned int vlen, int cc)
-{
-	struct nls_table *in = server->nls_vol;
-	struct nls_table *out = server->nls_io;
-	const unsigned char *vname_end;
-	unsigned char *iname_start;
-	unsigned char *iname_end;
-	unsigned char *vname_cc;
-	int err;
-
-	vname_cc = NULL;
-
-	if (cc) {
-		int i;
-
-		/* this is wrong! */
-		vname_cc = kmalloc(vlen, GFP_KERNEL);
-		if (!vname_cc)
-			return -ENOMEM;
-		for (i = 0; i < vlen; i++)
-			vname_cc[i] = ncp_tolower(in, vname[i]);
-		vname = vname_cc;
-	}
-
-	iname_start = iname;
-	iname_end = iname + *ilen - 1;
-	vname_end = vname + vlen;
-
-	while (vname < vname_end) {
-		wchar_t ec;
-		int chl;
-
-		if ( (chl = in->char2uni(vname, vname_end - vname, &ec)) < 0) {
-			err = chl;
-			goto quit;
-		}
-		vname += chl;
-
-		/* unitolower should be here! */
-
-		if (NCP_IS_FLAG(server, NCP_FLAG_UTF8)) {
-			int k;
-
-			k = utf32_to_utf8(ec, iname, iname_end - iname);
-			if (k < 0) {
-				err = -ENAMETOOLONG;
-				goto quit;
-			}
-			iname += k;
-		} else {
-			if ( (chl = out->uni2char(ec, iname, iname_end - iname)) >= 0) {
-				iname += chl;
-			} else {
-				int k;
-
-				if (iname_end - iname < 5) {
-					err = -ENAMETOOLONG;
-					goto quit;
-				}
-				*iname = NCP_ESC;
-				for (k = 4; k > 0; k--) {
-					unsigned char v;
-					
-					v = (ec & 0xF) + '0';
-					if (v > '9') {
-						v += 'A' - '9' - 1;
-					}
-					iname[k] = v;
-					ec >>= 4;
-				}
-				iname += 5;
-			}
-		}
-	}
-
-	*iname = 0;
-	*ilen = iname - iname_start;
-	err = 0;
-quit:;
-	if (cc)
-		kfree(vname_cc);
-	return err;
-}
-
-#else
-
-int
-ncp__io2vol(unsigned char *vname, unsigned int *vlen,
-		const unsigned char *iname, unsigned int ilen, int cc)
-{
-	int i;
-
-	if (*vlen <= ilen)
-		return -ENAMETOOLONG;
-
-	if (cc)
-		for (i = 0; i < ilen; i++) {
-			*vname = toupper(*iname);
-			vname++;
-			iname++;
-		}
-	else {
-		memmove(vname, iname, ilen);
-		vname += ilen;
-	}
-
-	*vlen = ilen;
-	*vname = 0;
-	return 0;
-}
-
-int
-ncp__vol2io(unsigned char *iname, unsigned int *ilen,
-		const unsigned char *vname, unsigned int vlen, int cc)
-{
-	int i;
-
-	if (*ilen <= vlen)
-		return -ENAMETOOLONG;
-
-	if (cc)
-		for (i = 0; i < vlen; i++) {
-			*iname = tolower(*vname);
-			iname++;
-			vname++;
-		}
-	else {
-		memmove(iname, vname, vlen);
-		iname += vlen;
-	}
-
-	*ilen = vlen;
-	*iname = 0;
-	return 0;
-}
-
-#endif