Merge bk://vana.vc.cvut.cz/ncpfs

into home.transmeta.com:/home/torvalds/v2.5/linux

fs/ncpfs/Makefile

@@ -5,7 +5,13 @@
 obj-$(CONFIG_NCP_FS) += ncpfs.o
 
 ncpfs-objs   := dir.o file.o inode.o ioctl.o mmap.o ncplib_kernel.o sock.o \
-		symlink.o ncpsign_kernel.o
+		ncpsign_kernel.o
+ifeq ($(CONFIG_NCPFS_EXTRAS),y)
+ncpfs-objs   += symlink.o
+endif
+ifeq ($(CONFIG_NCPFS_NFS_NS),y)
+ncpfs-objs   += symlink.o
+endif
 
 # If you want debugging output, please uncomment the following line
 # EXTRA_CFLAGS += -DDEBUG_NCP=1

fs/ncpfs/dir.c

@@ -6,6 +6,7 @@
  *  Modified 1997 Peter Waltenberg, Bill Hawes, David Woodhouse for 2.1 dcache
  *  Modified 1998, 1999 Wolfram Pienkoss for NLS
  *  Modified 1999 Wolfram Pienkoss for directory caching
+ *  Modified 2000 Ben Harris, University of Cambridge for NFS NS meta-info
  *
  */
 
@@ -40,8 +41,12 @@ static int ncp_mkdir(struct inode *, struct dentry *, int);
 static int ncp_rmdir(struct inode *, struct dentry *);
 static int ncp_rename(struct inode *, struct dentry *,
 	  	      struct inode *, struct dentry *);
-#ifdef CONFIG_NCPFS_EXTRAS
+static int ncp_mknod(struct inode * dir, struct dentry *dentry,
+		     int mode, int rdev);
+#if defined(CONFIG_NCPFS_EXTRAS) || defined(CONFIG_NCPFS_NFS_NS)
 extern int ncp_symlink(struct inode *, struct dentry *, const char *);
+#else
+#define ncp_symlink NULL
 #endif
 		      
 struct file_operations ncp_dir_operations =
@@ -56,11 +61,10 @@ struct inode_operations ncp_dir_inode_operations =
 	create:		ncp_create,
 	lookup:		ncp_lookup,
 	unlink:		ncp_unlink,
-#ifdef CONFIG_NCPFS_EXTRAS
 	symlink:	ncp_symlink,
-#endif
 	mkdir:		ncp_mkdir,
 	rmdir:		ncp_rmdir,
+	mknod:		ncp_mknod,
 	rename:		ncp_rename,
 	setattr:	ncp_notify_change,
 };
@@ -73,7 +77,7 @@ static int ncp_hash_dentry(struct dentry *, struct qstr *);
 static int ncp_compare_dentry (struct dentry *, struct qstr *, struct qstr *);
 static int ncp_delete_dentry(struct dentry *);
 
-struct dentry_operations ncp_dentry_operations =
+static struct dentry_operations ncp_dentry_operations =
 {
 	d_revalidate:	ncp_lookup_validate,
 	d_hash:		ncp_hash_dentry,
@@ -81,6 +85,13 @@ struct dentry_operations ncp_dentry_operations =
 	d_delete:	ncp_delete_dentry,
 };
 
+struct dentry_operations ncp_root_dentry_operations =
+{
+	d_hash:		ncp_hash_dentry,
+	d_compare:	ncp_compare_dentry,
+	d_delete:	ncp_delete_dentry,
+};
+
 
 /*
  * Note: leave the hash unchanged if the directory
@@ -300,6 +311,7 @@ __ncp_lookup_validate(struct dentry * dentry, int flags)
 		if (!res)
 			res = ncp_obtain_info(server, dir, __name, &(finfo.i));
 	}
+	finfo.volume = finfo.i.volNumber;
 	DDPRINTK("ncp_lookup_validate: looked for %s/%s, res=%d\n",
 		dentry->d_parent->d_name.name, __name, res);
 	/*
@@ -663,6 +675,7 @@ ncp_read_volume_list(struct file *filp, void *dirent, filldir_t filldir,
 				info.volume_name);
 			continue;
 		}
+		entry.volume = entry.i.volNumber;
 		if (!ncp_fill_cache(filp, dirent, filldir, ctl, &entry))
 			return;
 	}
@@ -678,6 +691,9 @@ ncp_do_readdir(struct file *filp, void *dirent, filldir_t filldir,
 	struct nw_search_sequence seq;
 	struct ncp_entry_info entry;
 	int err;
+	void* buf;
+	int more;
+	size_t bufsize;
 
 	DPRINTK("ncp_do_readdir: %s/%s, fpos=%ld\n",
 		dentry->d_parent->d_name.name, dentry->d_name.name,
@@ -691,15 +707,57 @@ ncp_do_readdir(struct file *filp, void *dirent, filldir_t filldir,
 		DPRINTK("ncp_do_readdir: init failed, err=%d\n", err);
 		return;
 	}
+#ifdef USE_OLD_SLOW_DIRECTORY_LISTING
 	for (;;) {
 		err = ncp_search_for_file_or_subdir(server, &seq, &entry.i);
 		if (err) {
 			DPRINTK("ncp_do_readdir: search failed, err=%d\n", err);
-			return;
+			break;
 		}
+		entry.volume = entry.i.volNumber;
 		if (!ncp_fill_cache(filp, dirent, filldir, ctl, &entry))
-			return;
+			break;
 	}
+#else
+	/* We MUST NOT use server->buffer_size handshaked with server if we are
+	   using UDP, as for UDP server uses max. buffer size determined by
+	   MTU, and for TCP server uses hardwired value 65KB (== 66560 bytes). 
+	   So we use 128KB, just to be sure, as there is no way how to know
+	   this value in advance. */
+	bufsize = 131072;
+	buf = vmalloc(bufsize);
+	if (!buf)
+		return;
+	do {
+		int cnt;
+		char* rpl;
+		size_t rpls;
+
+		err = ncp_search_for_fileset(server, &seq, &more, &cnt, buf, bufsize, &rpl, &rpls);
+		if (err)		/* Error */
+			break;
+		if (!cnt)		/* prevent endless loop */
+			break;
+		while (cnt--) {
+			size_t onerpl;
+			
+			if (rpls < offsetof(struct nw_info_struct, entryName))
+				break;	/* short packet */
+			ncp_extract_file_info(rpl, &entry.i);
+			onerpl = offsetof(struct nw_info_struct, entryName) + entry.i.nameLen;
+			if (rpls < onerpl)
+				break;	/* short packet */
+			(void)ncp_obtain_nfs_info(server, &entry.i);
+			rpl += onerpl;
+			rpls -= onerpl;
+			entry.volume = entry.i.volNumber;
+			if (!ncp_fill_cache(filp, dirent, filldir, ctl, &entry))
+				break;
+		}
+	} while (more);
+	vfree(buf);
+#endif
+	return;
 }
 
 int ncp_conn_logged_in(struct super_block *sb)
@@ -781,6 +839,7 @@ static struct dentry *ncp_lookup(struct inode *dir, struct dentry *dentry)
 	 */
 	finfo.opened = 0;
 	finfo.ino = iunique(dir->i_sb, 2);
+	finfo.volume = finfo.i.volNumber;
 	error = -EACCES;
 	inode = ncp_iget(dir->i_sb, &finfo);
 
@@ -824,7 +883,7 @@ static int ncp_instantiate(struct inode *dir, struct dentry *dentry,
 }
 
 int ncp_create_new(struct inode *dir, struct dentry *dentry, int mode,
-		int attributes)
+		   int rdev, int attributes)
 {
 	struct ncp_server *server = NCP_SERVER(dir);
 	struct ncp_entry_info finfo;
@@ -870,6 +929,15 @@ int ncp_create_new(struct inode *dir, struct dentry *dentry, int mode,
 		opmode = O_WRONLY;
 	}
 	finfo.access = opmode;
+	if (ncp_is_nfs_extras(server, finfo.volume)) {
+		finfo.i.nfs.mode = mode;
+		finfo.i.nfs.rdev = rdev;
+		if (ncp_modify_nfs_info(server, finfo.volume,
+					finfo.i.dirEntNum,
+					mode, rdev) != 0)
+			goto out;
+	}
+
 	error = ncp_instantiate(dir, dentry, &finfo);
 out:
 	unlock_kernel();
@@ -878,7 +946,7 @@ int ncp_create_new(struct inode *dir, struct dentry *dentry, int mode,
 
 static int ncp_create(struct inode *dir, struct dentry *dentry, int mode)
 {
-	return ncp_create_new(dir, dentry, mode, 0);
+	return ncp_create_new(dir, dentry, mode, 0, 0);
 }
 
 static int ncp_mkdir(struct inode *dir, struct dentry *dentry, int mode)
@@ -906,6 +974,15 @@ static int ncp_mkdir(struct inode *dir, struct dentry *dentry, int mode)
 					   OC_MODE_CREATE, aDIR, 0xffff,
 					   &finfo) == 0)
 	{
+		if (ncp_is_nfs_extras(server, finfo.volume)) {
+			mode |= S_IFDIR;
+			finfo.i.nfs.mode = mode;
+			if (ncp_modify_nfs_info(server,
+						finfo.volume,
+						finfo.i.dirEntNum,
+						mode, 0) != 0)
+				goto out;
+		}
 		error = ncp_instantiate(dir, dentry, &finfo);
 	}
 out:
@@ -1091,6 +1168,16 @@ static int ncp_rename(struct inode *old_dir, struct dentry *old_dentry,
 	return error;
 }
 
+static int ncp_mknod(struct inode * dir, struct dentry *dentry,
+		     int mode, int rdev)
+{
+	if (ncp_is_nfs_extras(NCP_SERVER(dir), NCP_FINFO(dir)->volNumber)) {
+		DPRINTK(KERN_DEBUG "ncp_mknod: mode = 0%o\n", mode);
+		return ncp_create_new(dir, dentry, mode, rdev, 0);
+	}
+	return -EPERM; /* Strange, but true */
+}
+
 /* The following routines are taken directly from msdos-fs */
 
 /* Linear day numbers of the respective 1sts in non-leap years. */

fs/ncpfs/file.c

@@ -51,12 +51,10 @@ int ncp_make_open(struct inode *inode, int right)
 		struct ncp_entry_info finfo;
 		int result;
 
-		finfo.i.dirEntNum = NCP_FINFO(inode)->dirEntNum;
-		finfo.i.volNumber = NCP_FINFO(inode)->volNumber;
 		/* tries max. rights */
 		finfo.access = O_RDWR;
 		result = ncp_open_create_file_or_subdir(NCP_SERVER(inode),
-					NULL, NULL, OC_MODE_OPEN,
+					inode, NULL, OC_MODE_OPEN,
 					0, AR_READ | AR_WRITE, &finfo);
 		if (!result)
 			goto update;
@@ -65,13 +63,13 @@ int ncp_make_open(struct inode *inode, int right)
 			case O_RDONLY:
 				finfo.access = O_RDONLY;
 				result = ncp_open_create_file_or_subdir(NCP_SERVER(inode),
-					NULL, NULL, OC_MODE_OPEN,
+					inode, NULL, OC_MODE_OPEN,
 					0, AR_READ, &finfo);
 				break;
 			case O_WRONLY:
 				finfo.access = O_WRONLY;
 				result = ncp_open_create_file_or_subdir(NCP_SERVER(inode),
-					NULL, NULL, OC_MODE_OPEN,
+					inode, NULL, OC_MODE_OPEN,
 					0, AR_WRITE, &finfo);
 				break;
 		}
@@ -115,30 +113,31 @@ ncp_file_read(struct file *file, char *buf, size_t count, loff_t *ppos)
 	DPRINTK("ncp_file_read: enter %s/%s\n",
 		dentry->d_parent->d_name.name, dentry->d_name.name);
 
-	error = -EIO;
 	if (!ncp_conn_valid(NCP_SERVER(inode)))
-		goto out;
-	error = -EINVAL;
+		return -EIO;
 	if (!S_ISREG(inode->i_mode)) {
 		DPRINTK("ncp_file_read: read from non-file, mode %07o\n",
 			inode->i_mode);
-		goto out;
+		return -EINVAL;
 	}
 
 	pos = *ppos;
-/* leave it out on server ...
-	if (pos + count > inode->i_size) {
-		count = inode->i_size - pos;
+
+	if ((ssize_t) count < 0) {
+		return -EINVAL;
+	}
+	if (!count)
+		return 0;
+	if (pos > inode->i_sb->s_maxbytes)
+		return 0;
+	if (pos + count > inode->i_sb->s_maxbytes) {
+		count = inode->i_sb->s_maxbytes - pos;
 	}
-*/
-	error = 0;
-	if (!count)	/* size_t is never < 0 */
-		goto out;
 
 	error = ncp_make_open(inode, O_RDONLY);
 	if (error) {
 		DPRINTK(KERN_ERR "ncp_file_read: open failed, error=%d\n", error);
-		goto out;
+		return error;
 	}
 
 	bufsize = NCP_SERVER(inode)->buffer_size;
@@ -184,7 +183,6 @@ ncp_file_read(struct file *file, char *buf, size_t count, loff_t *ppos)
 		dentry->d_parent->d_name.name, dentry->d_name.name);
 outrel:
 	ncp_inode_close(inode);		
-out:
 	return already_read ? already_read : error;
 }
 
@@ -201,28 +199,46 @@ ncp_file_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
 
 	DPRINTK("ncp_file_write: enter %s/%s\n",
 		dentry->d_parent->d_name.name, dentry->d_name.name);
-	errno = -EIO;
 	if (!ncp_conn_valid(NCP_SERVER(inode)))
-		goto out;
+		return -EIO;
 	if (!S_ISREG(inode->i_mode)) {
 		DPRINTK("ncp_file_write: write to non-file, mode %07o\n",
 			inode->i_mode);
 		return -EINVAL;
 	}
+	if ((ssize_t) count < 0)
+		return -EINVAL;
+	pos = *ppos;
+	if (file->f_flags & O_APPEND) {
+		pos = inode->i_size;
+	}
 
-	errno = 0;
+	if (pos + count > MAX_NON_LFS && !(file->f_flags&O_LARGEFILE)) {
+		if (pos >= MAX_NON_LFS) {
+			send_sig(SIGXFSZ, current, 0);
+			return -EFBIG;
+		}
+		if (count > MAX_NON_LFS - (u32)pos) {
+			count = MAX_NON_LFS - (u32)pos;
+		}
+	}
+	if (pos >= inode->i_sb->s_maxbytes) {
+		if (count || pos > inode->i_sb->s_maxbytes) {
+			send_sig(SIGXFSZ, current, 0);
+			return -EFBIG;
+		}
+	}
+	if (pos + count > inode->i_sb->s_maxbytes) {
+		count = inode->i_sb->s_maxbytes - pos;
+	}
+	
 	if (!count)
-		goto out;
+		return 0;
 	errno = ncp_make_open(inode, O_WRONLY);
 	if (errno) {
 		DPRINTK(KERN_ERR "ncp_file_write: open failed, error=%d\n", errno);
 		return errno;
 	}
-	pos = *ppos;
-
-	if (file->f_flags & O_APPEND) {
-		pos = inode->i_size;
-	}
 	bufsize = NCP_SERVER(inode)->buffer_size;
 
 	already_written = 0;
@@ -268,7 +284,6 @@ ncp_file_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
 		dentry->d_parent->d_name.name, dentry->d_name.name);
 outrel:
 	ncp_inode_close(inode);		
-out:
 	return already_written ? already_written : errno;
 }
 

fs/ncpfs/ioctl.c

@@ -201,7 +201,7 @@ int ncp_ioctl(struct inode *inode, struct file *filp,
 	case NCP_IOC_SETROOT:
 		{
 			struct ncp_setroot_ioctl sr;
-			struct nw_info_struct i;
+			unsigned int vnum, de, dosde;
 			struct dentry* dentry;
 
 			if (!capable(CAP_SYS_ADMIN))
@@ -214,25 +214,31 @@ int ncp_ioctl(struct inode *inode, struct file *filp,
 					   sizeof(sr))) return -EFAULT;
 			if (sr.volNumber < 0) {
 				server->m.mounted_vol[0] = 0;
-				i.volNumber = NCP_NUMBER_OF_VOLUMES + 1;
-				i.dirEntNum = 0;
-				i.DosDirNum = 0;
+				vnum = NCP_NUMBER_OF_VOLUMES;
+				de = 0;
+				dosde = 0;
 			} else if (sr.volNumber >= NCP_NUMBER_OF_VOLUMES) {
 				return -EINVAL;
-			} else
-				if (ncp_mount_subdir(server, &i, sr.volNumber,
+			} else {
+				struct nw_info_struct ni;
+				
+				if (ncp_mount_subdir(server, &ni, sr.volNumber,
 						sr.namespace, sr.dirEntNum))
 					return -ENOENT;
-
+				vnum = ni.volNumber;
+				de = ni.dirEntNum;
+				dosde = ni.DosDirNum;
+			}
+			
 			dentry = inode->i_sb->s_root;
 			server->root_setuped = 1;
 			if (dentry) {
 				struct inode* inode = dentry->d_inode;
 				
 				if (inode) {
-					NCP_FINFO(inode)->volNumber = i.volNumber;
-					NCP_FINFO(inode)->dirEntNum = i.dirEntNum;
-					NCP_FINFO(inode)->DosDirNum = i.DosDirNum;
+					NCP_FINFO(inode)->volNumber = vnum;
+					NCP_FINFO(inode)->dirEntNum = de;
+					NCP_FINFO(inode)->DosDirNum = dosde;
 				} else
 					DPRINTK("ncpfs: s_root->d_inode==NULL\n");
 			} else

fs/ncpfs/ncplib_kernel.h

@@ -44,8 +44,13 @@
 int ncp_negotiate_buffersize(struct ncp_server *, int, int *);
 int ncp_negotiate_size_and_options(struct ncp_server *server, int size,
   			  int options, int *ret_size, int *ret_options);
-int ncp_get_volume_info_with_number(struct ncp_server *, int,
-				struct ncp_volume_info *);
+
+int ncp_get_volume_info_with_number(struct ncp_server* server, int n,
+				    struct ncp_volume_info *target);
+
+int ncp_get_directory_info(struct ncp_server* server, __u8 dirhandle,
+			   struct ncp_volume_info* target);
+
 int ncp_close_file(struct ncp_server *, const char *);
 static inline int ncp_read_bounce_size(__u32 size) {
 	return sizeof(struct ncp_reply_header) + 2 + 2 + size + 8;
@@ -61,13 +66,17 @@ static inline void ncp_inode_close(struct inode *inode) {
 	atomic_dec(&NCP_FINFO(inode)->opened);
 }
 
+void ncp_extract_file_info(void* src, struct nw_info_struct* target);
 int ncp_obtain_info(struct ncp_server *server, struct inode *, char *,
 		struct nw_info_struct *target);
+int ncp_obtain_nfs_info(struct ncp_server *server, struct nw_info_struct *target);
 int ncp_lookup_volume(struct ncp_server *, char *, struct nw_info_struct *);
 int ncp_modify_file_or_subdir_dos_info(struct ncp_server *, struct inode *,
 	 __u32, const struct nw_modify_dos_info *info);
 int ncp_modify_file_or_subdir_dos_info_path(struct ncp_server *, struct inode *,
 	 const char* path, __u32, const struct nw_modify_dos_info *info);
+int ncp_modify_nfs_info(struct ncp_server *, __u8 volnum, __u32 dirent,
+			__u32 mode, __u32 rdev);
 
 int ncp_del_file_or_subdir2(struct ncp_server *, struct dentry*);
 int ncp_del_file_or_subdir(struct ncp_server *, struct inode *, char *);
@@ -79,6 +88,11 @@ int ncp_initialize_search(struct ncp_server *, struct inode *,
 int ncp_search_for_file_or_subdir(struct ncp_server *server,
 			      struct nw_search_sequence *seq,
 			      struct nw_info_struct *target);
+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 ncp_ren_or_mov_file_or_subdir(struct ncp_server *server,
 			      struct inode *, char *, struct inode *, char *);
@@ -99,6 +113,20 @@ ncp_ClearPhysicalRecord(struct ncp_server *server,
 int
 ncp_mount_subdir(struct ncp_server *, struct nw_info_struct *,
 			__u8, __u8, __u32);
+int ncp_dirhandle_alloc(struct ncp_server *, __u8 vol, __u32 dirent, __u8 *dirhandle);
+int ncp_dirhandle_free(struct ncp_server *, __u8 dirhandle);
+
+int ncp_create_new(struct inode *dir, struct dentry *dentry,
+                          int mode, int rdev, int attributes);
+
+static inline int ncp_is_nfs_extras(struct ncp_server* server, unsigned int volnum) {
+#ifdef CONFIG_NCPFS_NFS_NS
+	return (server->m.flags & NCP_MOUNT_NFS_EXTRAS) &&
+	       (server->name_space[volnum] == NW_NS_NFS);
+#else
+	return 0;
+#endif
+}
 
 #ifdef CONFIG_NCPFS_NLS
 

fs/ncpfs/symlink.c

@@ -7,19 +7,21 @@
  *  the file to make sure we don't accidentally use a non-link file
  *  as a link.
  *
+ *  When using the NFS namespace, we set the mode to indicate a symlink and
+ *  don't bother with the magic numbers.
+ *
  *  from linux/fs/ext2/symlink.c
  *
  *  Copyright (C) 1998-99, Frank A. Vorstenbosch
  *
  *  ncpfs symlink handling code
  *  NLS support (c) 1999 Petr Vandrovec
+ *  Modified 2000 Ben Harris, University of Cambridge for NFS NS meta-info
  *
  */
 
 #include <linux/config.h>
 
-#ifdef CONFIG_NCPFS_EXTRAS
-
 #include <asm/uaccess.h>
 
 #include <linux/errno.h>
@@ -28,7 +30,6 @@
 #include <linux/time.h>
 #include <linux/mm.h>
 #include <linux/stat.h>
-#include <linux/smp_lock.h>
 #include "ncplib_kernel.h"
 
 
@@ -38,30 +39,25 @@
 #define NCP_SYMLINK_MAGIC0	le32_to_cpu(0x6c6d7973)     /* "symlnk->" */
 #define NCP_SYMLINK_MAGIC1	le32_to_cpu(0x3e2d6b6e)
 
-int ncp_create_new(struct inode *dir, struct dentry *dentry,
-                          int mode,int attributes);
-
 /* ----- read a symbolic link ------------------------------------------ */
 
 static int ncp_symlink_readpage(struct file *file, struct page *page)
 {
 	struct inode *inode = page->mapping->host;
-	int error, length, len, cnt;
-	char *link;
+	int error, length, len;
+	char *link, *rawlink;
 	char *buf = kmap(page);
 
 	error = -ENOMEM;
-	for (cnt = 0; (link=(char *)kmalloc(NCP_MAX_SYMLINK_SIZE, GFP_NFS))==NULL; cnt++) {
-		if (cnt > 10)
-			goto fail;
-		schedule();
-	}
+	rawlink=(char *)kmalloc(NCP_MAX_SYMLINK_SIZE, GFP_NFS);
+	if (!rawlink)
+		goto fail;
 
 	if (ncp_make_open(inode,O_RDONLY))
 		goto failEIO;
 
 	error=ncp_read_kernel(NCP_SERVER(inode),NCP_FINFO(inode)->file_handle,
-                         0,NCP_MAX_SYMLINK_SIZE,link,&length);
+                         0,NCP_MAX_SYMLINK_SIZE,rawlink,&length);
 
 	ncp_inode_close(inode);
 	/* Close file handle if no other users... */
@@ -69,14 +65,20 @@ static int ncp_symlink_readpage(struct file *file, struct page *page)
 	if (error)
 		goto failEIO;
 
-	if (length<NCP_MIN_SYMLINK_SIZE || 
-	    ((__u32 *)link)[0]!=NCP_SYMLINK_MAGIC0 ||
-	    ((__u32 *)link)[1]!=NCP_SYMLINK_MAGIC1)
-	    	goto failEIO;
+	if (NCP_FINFO(inode)->flags & NCPI_KLUDGE_SYMLINK) {
+		if (length<NCP_MIN_SYMLINK_SIZE || 
+		    ((__u32 *)rawlink)[0]!=NCP_SYMLINK_MAGIC0 ||
+		    ((__u32 *)rawlink)[1]!=NCP_SYMLINK_MAGIC1)
+		    	goto failEIO;
+		link = rawlink + 8;
+		length -= 8;
+	} else {
+		link = rawlink;
+	}
 
 	len = NCP_MAX_SYMLINK_SIZE;
-	error = ncp_vol2io(NCP_SERVER(inode), buf, &len, link+8, length-8, 0);
-	kfree(link);
+	error = ncp_vol2io(NCP_SERVER(inode), buf, &len, link, length, 0);
+	kfree(rawlink);
 	if (error)
 		goto fail;
 	SetPageUptodate(page);
@@ -86,7 +88,7 @@ static int ncp_symlink_readpage(struct file *file, struct page *page)
 
 failEIO:
 	error = -EIO;
-	kfree(link);
+	kfree(rawlink);
 fail:
 	SetPageError(page);
 	kunmap(page);
@@ -105,62 +107,76 @@ struct address_space_operations ncp_symlink_aops = {
  
 int ncp_symlink(struct inode *dir, struct dentry *dentry, const char *symname) {
 	struct inode *inode;
-	char *link;
-	int length, err, i;
+	char *rawlink;
+	int length, err, i, outlen;
+	int kludge;
+	int mode, attr;
+	unsigned int hdr;
 
-#ifdef DEBUG
-	PRINTK("ncp_symlink(dir=%p,dentry=%p,symname=%s)\n",dir,dentry,symname);
-#endif
+	DPRINTK("ncp_symlink(dir=%p,dentry=%p,symname=%s)\n",dir,dentry,symname);
 
-	if (!(NCP_SERVER(dir)->m.flags & NCP_MOUNT_SYMLINKS))
-		return -EPERM;	/* EPERM is returned by VFS if symlink procedure does not exist */
+	if (ncp_is_nfs_extras(NCP_SERVER(dir), NCP_FINFO(dir)->volNumber))
+		kludge = 0;
+	else
+#ifdef CONFIG_NCPFS_EXTRAS
+	if (NCP_SERVER(dir)->m.flags & NCP_MOUNT_SYMLINKS)
+		kludge = 1;
+	else
+#endif
+	/* EPERM is returned by VFS if symlink procedure does not exist */
+		return -EPERM;
+  
+	rawlink=(char *)kmalloc(NCP_MAX_SYMLINK_SIZE, GFP_NFS);
+	if (!rawlink)
+		return -ENOMEM;
 
-	if ((length=strlen(symname))>NCP_MAX_SYMLINK_SIZE-8)
-		return -EINVAL;
+	if (kludge) {
+		mode = 0;
+		attr = aSHARED | aHIDDEN;
+		((__u32 *)rawlink)[0]=NCP_SYMLINK_MAGIC0;
+		((__u32 *)rawlink)[1]=NCP_SYMLINK_MAGIC1;
+		hdr = 8;
+	} else {
+		mode = S_IFLNK | S_IRWXUGO;
+		attr = 0;
+		hdr = 0;
+	}			
+
+	length = strlen(symname);
+	/* map to/from server charset, do not touch upper/lower case as
+	   symlink can point out of ncp filesystem */
+	outlen = NCP_MAX_SYMLINK_SIZE - hdr;
+	err = ncp_io2vol(NCP_SERVER(dir), rawlink + hdr, &outlen, symname, length, 0);
+	if (err)
+		goto failfree;
 
-	if ((link=(char *)kmalloc(length+9,GFP_NFS))==NULL)
-		return -ENOMEM;
+	outlen += hdr;
 
 	err = -EIO;
-	lock_kernel();
-	if (ncp_create_new(dir,dentry,0,aSHARED|aHIDDEN))
+	if (ncp_create_new(dir,dentry,mode,0,attr)) {
 		goto failfree;
+	}
 
 	inode=dentry->d_inode;
 
 	if (ncp_make_open(inode, O_WRONLY))
 		goto failfree;
 
-	((__u32 *)link)[0]=NCP_SYMLINK_MAGIC0;
-	((__u32 *)link)[1]=NCP_SYMLINK_MAGIC1;
-
-	/* map to/from server charset, do not touch upper/lower case as
-	   symlink can point out of ncp filesystem */
-	length += 1;
-	err = ncp_io2vol(NCP_SERVER(inode),link+8,&length,symname,length-1,0);
-	if (err)
-		goto fail;
-
-	if(ncp_write_kernel(NCP_SERVER(inode), NCP_FINFO(inode)->file_handle, 
-	    		    0, length+8, link, &i) || i!=length+8) {
-		err = -EIO;
+	if (ncp_write_kernel(NCP_SERVER(inode), NCP_FINFO(inode)->file_handle, 
+			     0, outlen, rawlink, &i) || i!=outlen) {
 		goto fail;
 	}
 
 	ncp_inode_close(inode);
 	ncp_make_closed(inode);
-	unlock_kernel();
-	kfree(link);
+	kfree(rawlink);
 	return 0;
-
-fail:
+fail:;
 	ncp_inode_close(inode);
 	ncp_make_closed(inode);
-failfree:
-	unlock_kernel();
-	kfree(link);
-	return err;	
+failfree:;
+	kfree(rawlink);
+	return err;
 }
-#endif
 
 /* ----- EOF ----- */

include/linux/ncp.h

@@ -44,7 +44,7 @@ struct ncp_reply_header {
 };
 
 #define NCP_VOLNAME_LEN (16)
-#define NCP_NUMBER_OF_VOLUMES (64)
+#define NCP_NUMBER_OF_VOLUMES (256)
 struct ncp_volume_info {
 	__u32 total_blocks;
 	__u32 free_blocks;
@@ -85,6 +85,18 @@ struct ncp_volume_info {
 #define RIM_ALL 	      (ntohl(0xFF0F0000L))
 #define RIM_COMPRESSED_INFO   (ntohl(0x00000080L))
 
+/* Defines for NSInfoBitMask */
+#define NSIBM_NFS_NAME		0x0001
+#define NSIBM_NFS_MODE		0x0002
+#define NSIBM_NFS_GID		0x0004
+#define NSIBM_NFS_NLINKS	0x0008
+#define NSIBM_NFS_RDEV		0x0010
+#define NSIBM_NFS_LINK		0x0020
+#define NSIBM_NFS_CREATED	0x0040
+#define NSIBM_NFS_UID		0x0080
+#define NSIBM_NFS_ACSFLAG	0x0100
+#define NSIBM_NFS_MYFLAG	0x0200
+
 /* open/create modes */
 #define OC_MODE_OPEN	  0x01
 #define OC_MODE_TRUNCATE  0x02
@@ -109,6 +121,11 @@ struct ncp_volume_info {
 #define AR_OPEN_COMPRESSED 0x0100
 #endif
 
+struct nw_nfs_info {
+	__u32 mode;
+	__u32 rdev;
+};
+
 struct nw_info_struct {
 	__u32 spaceAlloc __attribute__((packed));
 	__u32 attributes __attribute__((packed));
@@ -136,6 +153,10 @@ struct nw_info_struct {
 	__u32 NSCreator __attribute__((packed));
 	__u8 nameLen __attribute__((packed));
 	__u8 entryName[256] __attribute__((packed));
+	/* libncp may depend on there being nothing after entryName */
+#ifdef __KERNEL__
+	struct nw_nfs_info nfs;
+#endif
 };
 
 /* modify mask - use with MODIFY_DOS_INFO structure */

include/linux/ncp_fs.h

@@ -182,9 +182,8 @@ struct ncp_entry_info {
 	ino_t			ino;
 	int			opened;
 	int			access;
-	__u32			server_file_handle __attribute__((packed));
-	__u8			open_create_action __attribute__((packed));
-	__u8			file_handle[6] __attribute__((packed));
+	unsigned int		volume;
+	__u8			file_handle[6];
 };
 
 /* Guess, what 0x564c is :-) */

include/linux/ncp_fs_i.h

@@ -22,7 +22,8 @@ struct ncp_inode_info {
 	struct semaphore open_sem;
 	atomic_t	opened;
 	int	access;
-	__u32	server_file_handle;
+	int	flags;
+#define NCPI_KLUDGE_SYMLINK	0x0001
 	__u8	file_handle[6];
 	struct inode vfs_inode;
 };

include/linux/ncp_mount.h

@@ -21,6 +21,7 @@
 #define NCP_MOUNT_NO_NFS	0x0010	/* do not use NFS namespace */
 #define NCP_MOUNT_EXTRAS	0x0020
 #define NCP_MOUNT_SYMLINKS	0x0040	/* enable symlinks */
+#define NCP_MOUNT_NFS_EXTRAS	0x0080	/* Enable use of NFS NS meta-info */
 
 struct ncp_mount_data {
 	int version;