Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 3509 insertions, 0 deletions

diff --git a/fs/smbfs/proc.c b/fs/smbfs/proc.c
new file mode 100644
index 0000000..220babe
--- /dev/null
+++ b/fs/smbfs/proc.c
@@ -0,0 +1,3509 @@
+/*
+ *  proc.c
+ *
+ *  Copyright (C) 1995, 1996 by Paal-Kr. Engstad and Volker Lendecke
+ *  Copyright (C) 1997 by Volker Lendecke
+ *
+ *  Please add a note about your changes to smbfs in the ChangeLog file.
+ */
+
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/fs.h>
+#include <linux/file.h>
+#include <linux/stat.h>
+#include <linux/fcntl.h>
+#include <linux/dcache.h>
+#include <linux/dirent.h>
+#include <linux/nls.h>
+#include <linux/smp_lock.h>
+#include <linux/net.h>
+#include <linux/vfs.h>
+#include <linux/smb_fs.h>
+#include <linux/smbno.h>
+#include <linux/smb_mount.h>
+
+#include <net/sock.h>
+
+#include <asm/string.h>
+#include <asm/div64.h>
+
+#include "smb_debug.h"
+#include "proto.h"
+#include "request.h"
+
+
+/* Features. Undefine if they cause problems, this should perhaps be a
+   config option. */
+#define SMBFS_POSIX_UNLINK 1
+
+/* Allow smb_retry to be interrupted. */
+#define SMB_RETRY_INTR
+
+#define SMB_VWV(packet)  ((packet) + SMB_HEADER_LEN)
+#define SMB_CMD(packet)  (*(packet+8))
+#define SMB_WCT(packet)  (*(packet+SMB_HEADER_LEN - 1))
+
+#define SMB_DIRINFO_SIZE 43
+#define SMB_STATUS_SIZE  21
+
+#define SMB_ST_BLKSIZE	(PAGE_SIZE)
+#define SMB_ST_BLKSHIFT	(PAGE_SHIFT)
+
+static struct smb_ops smb_ops_core;
+static struct smb_ops smb_ops_os2;
+static struct smb_ops smb_ops_win95;
+static struct smb_ops smb_ops_winNT;
+static struct smb_ops smb_ops_unix;
+static struct smb_ops smb_ops_null;
+
+static void
+smb_init_dirent(struct smb_sb_info *server, struct smb_fattr *fattr);
+static void
+smb_finish_dirent(struct smb_sb_info *server, struct smb_fattr *fattr);
+static int
+smb_proc_getattr_core(struct smb_sb_info *server, struct dentry *dir,
+		      struct smb_fattr *fattr);
+static int
+smb_proc_getattr_ff(struct smb_sb_info *server, struct dentry *dentry,
+		    struct smb_fattr *fattr);
+static int
+smb_proc_setattr_core(struct smb_sb_info *server, struct dentry *dentry,
+		      u16 attr);
+static int
+smb_proc_setattr_ext(struct smb_sb_info *server,
+		     struct inode *inode, struct smb_fattr *fattr);
+static int
+smb_proc_query_cifsunix(struct smb_sb_info *server);
+static void
+install_ops(struct smb_ops *dst, struct smb_ops *src);
+
+
+static void
+str_upper(char *name, int len)
+{
+	while (len--)
+	{
+		if (*name >= 'a' && *name <= 'z')
+			*name -= ('a' - 'A');
+		name++;
+	}
+}
+
+#if 0
+static void
+str_lower(char *name, int len)
+{
+	while (len--)
+	{
+		if (*name >= 'A' && *name <= 'Z')
+			*name += ('a' - 'A');
+		name++;
+	}
+}
+#endif
+
+/* reverse a string inline. This is used by the dircache walking routines */
+static void reverse_string(char *buf, int len)
+{
+	char c;
+	char *end = buf+len-1;
+
+	while(buf < end) {
+		c = *buf;
+		*(buf++) = *end;
+		*(end--) = c;
+	}
+}
+
+/* no conversion, just a wrapper for memcpy. */
+static int convert_memcpy(unsigned char *output, int olen,
+			  const unsigned char *input, int ilen,
+			  struct nls_table *nls_from,
+			  struct nls_table *nls_to)
+{
+	if (olen < ilen)
+		return -ENAMETOOLONG;
+	memcpy(output, input, ilen);
+	return ilen;
+}
+
+static inline int write_char(unsigned char ch, char *output, int olen)
+{
+	if (olen < 4)
+		return -ENAMETOOLONG;
+	sprintf(output, ":x%02x", ch);
+	return 4;
+}
+
+static inline int write_unichar(wchar_t ch, char *output, int olen)
+{
+	if (olen < 5)
+		return -ENAMETOOLONG;
+	sprintf(output, ":%04x", ch);
+	return 5;
+}
+
+/* convert from one "codepage" to another (possibly being utf8). */
+static int convert_cp(unsigned char *output, int olen,
+		      const unsigned char *input, int ilen,
+		      struct nls_table *nls_from,
+		      struct nls_table *nls_to)
+{
+	int len = 0;
+	int n;
+	wchar_t ch;
+
+	while (ilen > 0) {
+		/* convert by changing to unicode and back to the new cp */
+		n = nls_from->char2uni(input, ilen, &ch);
+		if (n == -EINVAL) {
+			ilen--;
+			n = write_char(*input++, output, olen);
+			if (n < 0)
+				goto fail;
+			output += n;
+			olen -= n;
+			len += n;
+			continue;
+		} else if (n < 0)
+			goto fail;
+		input += n;
+		ilen -= n;
+
+		n = nls_to->uni2char(ch, output, olen);
+		if (n == -EINVAL)
+			n = write_unichar(ch, output, olen);
+		if (n < 0)
+			goto fail;
+		output += n;
+		olen -= n;
+
+		len += n;
+	}
+	return len;
+fail:
+	return n;
+}
+
+/* ----------------------------------------------------------- */
+
+/*
+ * nls_unicode
+ *
+ * This encodes/decodes little endian unicode format
+ */
+
+static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
+{
+	if (boundlen < 2)
+		return -EINVAL;
+	*out++ = uni & 0xff;
+	*out++ = uni >> 8;
+	return 2;
+}
+
+static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
+{
+	if (boundlen < 2)
+		return -EINVAL;
+	*uni = (rawstring[1] << 8) | rawstring[0];
+	return 2;
+}
+
+static struct nls_table unicode_table = {
+	.charset	= "unicode",
+	.uni2char	= uni2char,
+	.char2uni	= char2uni,
+};
+
+/* ----------------------------------------------------------- */
+
+static int setcodepage(struct nls_table **p, char *name)
+{
+	struct nls_table *nls;
+
+	if (!name || !*name) {
+		nls = NULL;
+	} else if ( (nls = load_nls(name)) == NULL) {
+		printk (KERN_ERR "smbfs: failed to load nls '%s'\n", name);
+		return -EINVAL;
+	}
+
+	/* if already set, unload the previous one. */
+	if (*p && *p != &unicode_table)
+		unload_nls(*p);
+	*p = nls;
+
+	return 0;
+}
+
+/* Handles all changes to codepage settings. */
+int smb_setcodepage(struct smb_sb_info *server, struct smb_nls_codepage *cp)
+{
+	int n = 0;
+
+	smb_lock_server(server);
+
+	/* Don't load any nls_* at all, if no remote is requested */
+	if (!*cp->remote_name)
+		goto out;
+
+	/* local */
+	n = setcodepage(&server->local_nls, cp->local_name);
+	if (n != 0)
+		goto out;
+
+	/* remote */
+	if (!strcmp(cp->remote_name, "unicode")) {
+		server->remote_nls = &unicode_table;
+	} else {
+		n = setcodepage(&server->remote_nls, cp->remote_name);
+		if (n != 0)
+			setcodepage(&server->local_nls, NULL);
+	}
+
+out:
+	if (server->local_nls != NULL && server->remote_nls != NULL)
+		server->ops->convert = convert_cp;
+	else
+		server->ops->convert = convert_memcpy;
+
+	smb_unlock_server(server);
+	return n;
+}
+
+
+/*****************************************************************************/
+/*                                                                           */
+/*  Encoding/Decoding section                                                */
+/*                                                                           */
+/*****************************************************************************/
+
+static __u8 *
+smb_encode_smb_length(__u8 * p, __u32 len)
+{
+	*p = 0;
+	*(p+1) = 0;
+	*(p+2) = (len & 0xFF00) >> 8;
+	*(p+3) = (len & 0xFF);
+	if (len > 0xFFFF)
+	{
+		*(p+1) = 1;
+	}
+	return p + 4;
+}
+
+/*
+ * smb_build_path: build the path to entry and name storing it in buf.
+ * The path returned will have the trailing '\0'.
+ */
+static int smb_build_path(struct smb_sb_info *server, unsigned char *buf,
+			  int maxlen,
+			  struct dentry *entry, struct qstr *name)
+{
+	unsigned char *path = buf;
+	int len;
+	int unicode = (server->mnt->flags & SMB_MOUNT_UNICODE) != 0;
+
+	if (maxlen < (2<<unicode))
+		return -ENAMETOOLONG;
+
+	if (maxlen > SMB_MAXPATHLEN + 1)
+		maxlen = SMB_MAXPATHLEN + 1;
+
+	if (entry == NULL)
+		goto test_name_and_out;
+
+	/*
+	 * If IS_ROOT, we have to do no walking at all.
+	 */
+	if (IS_ROOT(entry) && !name) {
+		*path++ = '\\';
+		if (unicode) *path++ = '\0';
+		*path++ = '\0';
+		if (unicode) *path++ = '\0';
+		return path-buf;
+	}
+
+	/*
+	 * Build the path string walking the tree backward from end to ROOT
+	 * and store it in reversed order [see reverse_string()]
+	 */
+	dget(entry);
+	spin_lock(&entry->d_lock);
+	while (!IS_ROOT(entry)) {
+		struct dentry *parent;
+
+		if (maxlen < (3<<unicode)) {
+			spin_unlock(&entry->d_lock);
+			dput(entry);
+			return -ENAMETOOLONG;
+		}
+
+		len = server->ops->convert(path, maxlen-2, 
+				      entry->d_name.name, entry->d_name.len,
+				      server->local_nls, server->remote_nls);
+		if (len < 0) {
+			spin_unlock(&entry->d_lock);
+			dput(entry);
+			return len;
+		}
+		reverse_string(path, len);
+		path += len;
+		if (unicode) {
+			/* Note: reverse order */
+			*path++ = '\0';
+			maxlen--;
+		}
+		*path++ = '\\';
+		maxlen -= len+1;
+
+		parent = entry->d_parent;
+		dget(parent);
+		spin_unlock(&entry->d_lock);
+		dput(entry);
+		entry = parent;
+		spin_lock(&entry->d_lock);
+	}
+	spin_unlock(&entry->d_lock);
+	dput(entry);
+	reverse_string(buf, path-buf);
+
+	/* maxlen has space for at least one char */
+test_name_and_out:
+	if (name) {
+		if (maxlen < (3<<unicode))
+			return -ENAMETOOLONG;
+		*path++ = '\\';
+		if (unicode) {
+			*path++ = '\0';
+			maxlen--;
+		}
+		len = server->ops->convert(path, maxlen-2, 
+				      name->name, name->len,
+				      server->local_nls, server->remote_nls);
+		if (len < 0)
+			return len;
+		path += len;
+		maxlen -= len+1;
+	}
+	/* maxlen has space for at least one char */
+	*path++ = '\0';
+	if (unicode) *path++ = '\0';
+	return path-buf;
+}
+
+static int smb_encode_path(struct smb_sb_info *server, char *buf, int maxlen,
+			   struct dentry *dir, struct qstr *name)
+{
+	int result;
+
+	result = smb_build_path(server, buf, maxlen, dir, name);
+	if (result < 0)
+		goto out;
+	if (server->opt.protocol <= SMB_PROTOCOL_COREPLUS)
+		str_upper(buf, result);
+out:
+	return result;
+}
+
+/* encode_path for non-trans2 request SMBs */
+static int smb_simple_encode_path(struct smb_request *req, char **p,
+				  struct dentry * entry, struct qstr * name)
+{
+	struct smb_sb_info *server = req->rq_server;
+	char *s = *p;
+	int res;
+	int maxlen = ((char *)req->rq_buffer + req->rq_bufsize) - s;
+	int unicode = (server->mnt->flags & SMB_MOUNT_UNICODE);
+
+	if (!maxlen)
+		return -ENAMETOOLONG;
+	*s++ = 4;	/* ASCII data format */
+
+	/*
+	 * SMB Unicode strings must be 16bit aligned relative the start of the
+	 * packet. If they are not they must be padded with 0.
+	 */
+	if (unicode) {
+		int align = s - (char *)req->rq_buffer;
+		if (!(align & 1)) {
+			*s++ = '\0';
+			maxlen--;
+		}
+	}
+
+	res = smb_encode_path(server, s, maxlen-1, entry, name);
+	if (res < 0)
+		return res;
+	*p = s + res;
+	return 0;
+}
+
+/* The following are taken directly from msdos-fs */
+
+/* Linear day numbers of the respective 1sts in non-leap years. */
+
+static int day_n[] =
+{0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 0, 0, 0, 0};
+		  /* JanFebMarApr May Jun Jul Aug Sep Oct Nov Dec */
+
+
+static time_t
+utc2local(struct smb_sb_info *server, time_t time)
+{
+	return time - server->opt.serverzone*60;
+}
+
+static time_t
+local2utc(struct smb_sb_info *server, time_t time)
+{
+	return time + server->opt.serverzone*60;
+}
+
+/* Convert a MS-DOS time/date pair to a UNIX date (seconds since 1 1 70). */
+
+static time_t
+date_dos2unix(struct smb_sb_info *server, __u16 date, __u16 time)
+{
+	int month, year;
+	time_t secs;
+
+	/* first subtract and mask after that... Otherwise, if
+	   date == 0, bad things happen */
+	month = ((date >> 5) - 1) & 15;
+	year = date >> 9;
+	secs = (time & 31) * 2 + 60 * ((time >> 5) & 63) + (time >> 11) * 3600 + 86400 *
+	    ((date & 31) - 1 + day_n[month] + (year / 4) + year * 365 - ((year & 3) == 0 &&
+						   month < 2 ? 1 : 0) + 3653);
+	/* days since 1.1.70 plus 80's leap day */
+	return local2utc(server, secs);
+}
+
+
+/* Convert linear UNIX date to a MS-DOS time/date pair. */
+
+static void
+date_unix2dos(struct smb_sb_info *server,
+	      int unix_date, __u16 *date, __u16 *time)
+{
+	int day, year, nl_day, month;
+
+	unix_date = utc2local(server, unix_date);
+	if (unix_date < 315532800)
+		unix_date = 315532800;
+
+	*time = (unix_date % 60) / 2 +
+		(((unix_date / 60) % 60) << 5) +
+		(((unix_date / 3600) % 24) << 11);
+
+	day = unix_date / 86400 - 3652;
+	year = day / 365;
+	if ((year + 3) / 4 + 365 * year > day)
+		year--;
+	day -= (year + 3) / 4 + 365 * year;
+	if (day == 59 && !(year & 3)) {
+		nl_day = day;
+		month = 2;
+	} else {
+		nl_day = (year & 3) || day <= 59 ? day : day - 1;
+		for (month = 0; month < 12; month++)
+			if (day_n[month] > nl_day)
+				break;
+	}
+	*date = nl_day - day_n[month - 1] + 1 + (month << 5) + (year << 9);
+}
+
+/* The following are taken from fs/ntfs/util.c */
+
+#define NTFS_TIME_OFFSET ((u64)(369*365 + 89) * 24 * 3600 * 10000000)
+
+/*
+ * Convert the NT UTC (based 1601-01-01, in hundred nanosecond units)
+ * into Unix UTC (based 1970-01-01, in seconds).
+ */
+static struct timespec
+smb_ntutc2unixutc(u64 ntutc)
+{
+	struct timespec ts;
+	/* FIXME: what about the timezone difference? */
+	/* Subtract the NTFS time offset, then convert to 1s intervals. */
+	u64 t = ntutc - NTFS_TIME_OFFSET;
+	ts.tv_nsec = do_div(t, 10000000) * 100;
+	ts.tv_sec = t; 
+	return ts;
+}
+
+/* Convert the Unix UTC into NT time */
+static u64
+smb_unixutc2ntutc(struct timespec ts)
+{
+	/* Note: timezone conversion is probably wrong. */
+	/* return ((u64)utc2local(server, t)) * 10000000 + NTFS_TIME_OFFSET; */
+	return ((u64)ts.tv_sec) * 10000000 + ts.tv_nsec/100 + NTFS_TIME_OFFSET;
+}
+
+#define MAX_FILE_MODE	6
+static mode_t file_mode[] = {
+	S_IFREG, S_IFDIR, S_IFLNK, S_IFCHR, S_IFBLK, S_IFIFO, S_IFSOCK
+};
+
+static int smb_filetype_to_mode(u32 filetype)
+{
+	if (filetype > MAX_FILE_MODE) {
+		PARANOIA("Filetype out of range: %d\n", filetype);
+		return S_IFREG;
+	}
+	return file_mode[filetype];
+}
+
+static u32 smb_filetype_from_mode(int mode)
+{
+	if (S_ISREG(mode))
+		return UNIX_TYPE_FILE;
+	if (S_ISDIR(mode))
+		return UNIX_TYPE_DIR;
+	if (S_ISLNK(mode))
+		return UNIX_TYPE_SYMLINK;
+	if (S_ISCHR(mode))
+		return UNIX_TYPE_CHARDEV;
+	if (S_ISBLK(mode))
+		return UNIX_TYPE_BLKDEV;
+	if (S_ISFIFO(mode))
+		return UNIX_TYPE_FIFO;
+	if (S_ISSOCK(mode))
+		return UNIX_TYPE_SOCKET;
+	return UNIX_TYPE_UNKNOWN;
+}
+
+
+/*****************************************************************************/
+/*                                                                           */
+/*  Support section.                                                         */
+/*                                                                           */
+/*****************************************************************************/
+
+__u32
+smb_len(__u8 * p)
+{
+	return ((*(p+1) & 0x1) << 16L) | (*(p+2) << 8L) | *(p+3);
+}
+
+static __u16
+smb_bcc(__u8 * packet)
+{
+	int pos = SMB_HEADER_LEN + SMB_WCT(packet) * sizeof(__u16);
+	return WVAL(packet, pos);
+}
+
+/* smb_valid_packet: We check if packet fulfills the basic
+   requirements of a smb packet */
+
+static int
+smb_valid_packet(__u8 * packet)
+{
+	return (packet[4] == 0xff
+		&& packet[5] == 'S'
+		&& packet[6] == 'M'
+		&& packet[7] == 'B'
+		&& (smb_len(packet) + 4 == SMB_HEADER_LEN
+		    + SMB_WCT(packet) * 2 + smb_bcc(packet)));
+}
+
+/* smb_verify: We check if we got the answer we expected, and if we
+   got enough data. If bcc == -1, we don't care. */
+
+static int
+smb_verify(__u8 * packet, int command, int wct, int bcc)
+{
+	if (SMB_CMD(packet) != command)
+		goto bad_command;
+	if (SMB_WCT(packet) < wct)
+		goto bad_wct;
+	if (bcc != -1 && smb_bcc(packet) < bcc)
+		goto bad_bcc;
+	return 0;
+
+bad_command:
+	printk(KERN_ERR "smb_verify: command=%x, SMB_CMD=%x??\n",
+	       command, SMB_CMD(packet));
+	goto fail;
+bad_wct:
+	printk(KERN_ERR "smb_verify: command=%x, wct=%d, SMB_WCT=%d??\n",
+	       command, wct, SMB_WCT(packet));
+	goto fail;
+bad_bcc:
+	printk(KERN_ERR "smb_verify: command=%x, bcc=%d, SMB_BCC=%d??\n",
+	       command, bcc, smb_bcc(packet));
+fail:
+	return -EIO;
+}
+
+/*
+ * Returns the maximum read or write size for the "payload". Making all of the
+ * packet fit within the negotiated max_xmit size.
+ *
+ * N.B. Since this value is usually computed before locking the server,
+ * the server's packet size must never be decreased!
+ */
+static inline int
+smb_get_xmitsize(struct smb_sb_info *server, int overhead)
+{
+	return server->opt.max_xmit - overhead;
+}
+
+/*
+ * Calculate the maximum read size
+ */
+int
+smb_get_rsize(struct smb_sb_info *server)
+{
+	/* readX has 12 parameters, read has 5 */
+	int overhead = SMB_HEADER_LEN + 12 * sizeof(__u16) + 2 + 1 + 2;
+	int size = smb_get_xmitsize(server, overhead);
+
+	VERBOSE("xmit=%d, size=%d\n", server->opt.max_xmit, size);
+
+	return size;
+}
+
+/*
+ * Calculate the maximum write size
+ */
+int
+smb_get_wsize(struct smb_sb_info *server)
+{
+	/* writeX has 14 parameters, write has 5 */
+	int overhead = SMB_HEADER_LEN + 14 * sizeof(__u16) + 2 + 1 + 2;
+	int size = smb_get_xmitsize(server, overhead);
+
+	VERBOSE("xmit=%d, size=%d\n", server->opt.max_xmit, size);
+
+	return size;
+}
+
+/*
+ * Convert SMB error codes to -E... errno values.
+ */
+int
+smb_errno(struct smb_request *req)
+{
+	int errcls = req->rq_rcls;
+	int error  = req->rq_err;
+	char *class = "Unknown";
+
+	VERBOSE("errcls %d  code %d  from command 0x%x\n",
+		errcls, error, SMB_CMD(req->rq_header));
+
+	if (errcls == ERRDOS) {
+		switch (error) {
+		case ERRbadfunc:
+			return -EINVAL;
+		case ERRbadfile:
+		case ERRbadpath:
+			return -ENOENT;
+		case ERRnofids:
+			return -EMFILE;
+		case ERRnoaccess:
+			return -EACCES;
+		case ERRbadfid:
+			return -EBADF;
+		case ERRbadmcb:
+			return -EREMOTEIO;
+		case ERRnomem:
+			return -ENOMEM;
+		case ERRbadmem:
+			return -EFAULT;
+		case ERRbadenv:
+		case ERRbadformat:
+			return -EREMOTEIO;
+		case ERRbadaccess:
+			return -EACCES;
+		case ERRbaddata:
+			return -E2BIG;
+		case ERRbaddrive:
+			return -ENXIO;
+		case ERRremcd:
+			return -EREMOTEIO;
+		case ERRdiffdevice:
+			return -EXDEV;
+		case ERRnofiles:
+			return -ENOENT;
+		case ERRbadshare:
+			return -ETXTBSY;
+		case ERRlock:
+			return -EDEADLK;
+		case ERRfilexists:
+			return -EEXIST;
+		case ERROR_INVALID_PARAMETER:
+			return -EINVAL;
+		case ERROR_DISK_FULL:
+			return -ENOSPC;
+		case ERROR_INVALID_NAME:
+			return -ENOENT;
+		case ERROR_DIR_NOT_EMPTY:
+			return -ENOTEMPTY;
+		case ERROR_NOT_LOCKED:
+                       return -ENOLCK;
+		case ERROR_ALREADY_EXISTS:
+			return -EEXIST;
+		default:
+			class = "ERRDOS";
+			goto err_unknown;
+		}
+	} else if (errcls == ERRSRV) {
+		switch (error) {
+		/* N.B. This is wrong ... EIO ? */
+		case ERRerror:
+			return -ENFILE;
+		case ERRbadpw:
+			return -EINVAL;
+		case ERRbadtype:
+		case ERRtimeout:
+			return -EIO;
+		case ERRaccess:
+			return -EACCES;
+		/*
+		 * This is a fatal error, as it means the "tree ID"
+		 * for this connection is no longer valid. We map
+		 * to a special error code and get a new connection.
+		 */
+		case ERRinvnid:
+			return -EBADSLT;
+		default:
+			class = "ERRSRV";
+			goto err_unknown;
+		}
+	} else if (errcls == ERRHRD) {
+		switch (error) {
+		case ERRnowrite:
+			return -EROFS;
+		case ERRbadunit:
+			return -ENODEV;
+		case ERRnotready:
+			return -EUCLEAN;
+		case ERRbadcmd:
+		case ERRdata:
+			return -EIO;
+		case ERRbadreq:
+			return -ERANGE;
+		case ERRbadshare:
+			return -ETXTBSY;
+		case ERRlock:
+			return -EDEADLK;
+		case ERRdiskfull:
+			return -ENOSPC;
+		default:
+			class = "ERRHRD";
+			goto err_unknown;
+		}
+	} else if (errcls == ERRCMD) {
+		class = "ERRCMD";
+	} else if (errcls == SUCCESS) {
+		return 0;	/* This is the only valid 0 return */
+	}
+
+err_unknown:
+	printk(KERN_ERR "smb_errno: class %s, code %d from command 0x%x\n",
+	       class, error, SMB_CMD(req->rq_header));
+	return -EIO;
+}
+
+/* smb_request_ok: We expect the server to be locked. Then we do the
+   request and check the answer completely. When smb_request_ok
+   returns 0, you can be quite sure that everything went well. When
+   the answer is <=0, the returned number is a valid unix errno. */
+
+static int
+smb_request_ok(struct smb_request *req, int command, int wct, int bcc)
+{
+	int result;
+
+	req->rq_resp_wct = wct;
+	req->rq_resp_bcc = bcc;
+
+	result = smb_add_request(req);
+	if (result != 0) {
+		DEBUG1("smb_request failed\n");
+		goto out;
+	}
+
+	if (smb_valid_packet(req->rq_header) != 0) {
+		PARANOIA("invalid packet!\n");
+		goto out;
+	}
+
+	result = smb_verify(req->rq_header, command, wct, bcc);
+
+out:
+	return result;
+}
+
+/*
+ * This implements the NEWCONN ioctl. It installs the server pid,
+ * sets server->state to CONN_VALID, and wakes up the waiting process.
+ */
+int
+smb_newconn(struct smb_sb_info *server, struct smb_conn_opt *opt)
+{
+	struct file *filp;
+	struct sock *sk;
+	int error;
+
+	VERBOSE("fd=%d, pid=%d\n", opt->fd, current->pid);
+
+	smb_lock_server(server);
+
+	/*
+	 * Make sure we don't already have a valid connection ...
+	 */
+	error = -EINVAL;
+	if (server->state == CONN_VALID)
+		goto out;
+
+	error = -EACCES;
+	if (current->uid != server->mnt->mounted_uid && 
+	    !capable(CAP_SYS_ADMIN))
+		goto out;
+
+	error = -EBADF;
+	filp = fget(opt->fd);
+	if (!filp)
+		goto out;
+	if (!smb_valid_socket(filp->f_dentry->d_inode))
+		goto out_putf;
+
+	server->sock_file = filp;
+	server->conn_pid = current->pid;
+	server->opt = *opt;
+	server->generation += 1;
+	server->state = CONN_VALID;
+	error = 0;
+
+	if (server->conn_error) {
+		/*
+		 * conn_error is the returncode we originally decided to
+		 * drop the old connection on. This message should be positive
+		 * and not make people ask questions on why smbfs is printing
+		 * error messages ...
+		 */
+		printk(KERN_INFO "SMB connection re-established (%d)\n",
+		       server->conn_error);
+		server->conn_error = 0;
+	}
+
+	/*
+	 * Store the server in sock user_data (Only used by sunrpc)
+	 */
+	sk = SOCKET_I(filp->f_dentry->d_inode)->sk;
+	sk->sk_user_data = server;
+
+	/* chain into the data_ready callback */
+	server->data_ready = xchg(&sk->sk_data_ready, smb_data_ready);
+
+	/* check if we have an old smbmount that uses seconds for the 
+	   serverzone */
+	if (server->opt.serverzone > 12*60 || server->opt.serverzone < -12*60)
+		server->opt.serverzone /= 60;
+
+	/* now that we have an established connection we can detect the server
+	   type and enable bug workarounds */
+	if (server->opt.protocol < SMB_PROTOCOL_LANMAN2)
+		install_ops(server->ops, &smb_ops_core);
+	else if (server->opt.protocol == SMB_PROTOCOL_LANMAN2)
+		install_ops(server->ops, &smb_ops_os2);
+	else if (server->opt.protocol == SMB_PROTOCOL_NT1 &&
+		 (server->opt.max_xmit < 0x1000) &&
+		 !(server->opt.capabilities & SMB_CAP_NT_SMBS)) {
+		/* FIXME: can we kill the WIN95 flag now? */
+		server->mnt->flags |= SMB_MOUNT_WIN95;
+		VERBOSE("detected WIN95 server\n");
+		install_ops(server->ops, &smb_ops_win95);
+	} else {
+		/*
+		 * Samba has max_xmit 65535
+		 * NT4spX has max_xmit 4536 (or something like that)
+		 * win2k has ...
+		 */
+		VERBOSE("detected NT1 (Samba, NT4/5) server\n");
+		install_ops(server->ops, &smb_ops_winNT);
+	}
+
+	/* FIXME: the win9x code wants to modify these ... (seek/trunc bug) */
+	if (server->mnt->flags & SMB_MOUNT_OLDATTR) {
+		server->ops->getattr = smb_proc_getattr_core;
+	} else if (server->mnt->flags & SMB_MOUNT_DIRATTR) {
+		server->ops->getattr = smb_proc_getattr_ff;
+	}
+
+	/* Decode server capabilities */
+	if (server->opt.capabilities & SMB_CAP_LARGE_FILES) {
+		/* Should be ok to set this now, as no one can access the
+		   mount until the connection has been established. */
+		SB_of(server)->s_maxbytes = ~0ULL >> 1;
+		VERBOSE("LFS enabled\n");
+	}
+	if (server->opt.capabilities & SMB_CAP_UNICODE) {
+		server->mnt->flags |= SMB_MOUNT_UNICODE;
+		VERBOSE("Unicode enabled\n");
+	} else {
+		server->mnt->flags &= ~SMB_MOUNT_UNICODE;
+	}
+#if 0
+	/* flags we may test for other patches ... */
+	if (server->opt.capabilities & SMB_CAP_LARGE_READX) {
+		VERBOSE("Large reads enabled\n");
+	}
+	if (server->opt.capabilities & SMB_CAP_LARGE_WRITEX) {
+		VERBOSE("Large writes enabled\n");
+	}
+#endif
+	if (server->opt.capabilities & SMB_CAP_UNIX) {
+		struct inode *inode;
+		VERBOSE("Using UNIX CIFS extensions\n");
+		install_ops(server->ops, &smb_ops_unix);
+		inode = SB_of(server)->s_root->d_inode;
+		if (inode)
+			inode->i_op = &smb_dir_inode_operations_unix;
+	}
+
+	VERBOSE("protocol=%d, max_xmit=%d, pid=%d capabilities=0x%x\n",
+		server->opt.protocol, server->opt.max_xmit, server->conn_pid,
+		server->opt.capabilities);
+
+	/* FIXME: this really should be done by smbmount. */
+	if (server->opt.max_xmit > SMB_MAX_PACKET_SIZE) {
+		server->opt.max_xmit = SMB_MAX_PACKET_SIZE;
+	}
+
+	smb_unlock_server(server);
+	smbiod_wake_up();
+	if (server->opt.capabilities & SMB_CAP_UNIX)
+		smb_proc_query_cifsunix(server);
+
+	server->conn_complete++;
+	wake_up_interruptible_all(&server->conn_wq);
+	return error;
+
+out:
+	smb_unlock_server(server);
+	smbiod_wake_up();
+	return error;
+
+out_putf:
+	fput(filp);
+	goto out;
+}
+
+/* smb_setup_header: We completely set up the packet. You only have to
+   insert the command-specific fields */
+
+__u8 *
+smb_setup_header(struct smb_request *req, __u8 command, __u16 wct, __u16 bcc)
+{
+	__u32 xmit_len = SMB_HEADER_LEN + wct * sizeof(__u16) + bcc + 2;
+	__u8 *p = req->rq_header;
+	struct smb_sb_info *server = req->rq_server;
+
+	p = smb_encode_smb_length(p, xmit_len - 4);
+
+	*p++ = 0xff;
+	*p++ = 'S';
+	*p++ = 'M';
+	*p++ = 'B';
+	*p++ = command;
+
+	memset(p, '\0', 19);
+	p += 19;
+	p += 8;
+
+	if (server->opt.protocol > SMB_PROTOCOL_CORE) {
+		int flags = SMB_FLAGS_CASELESS_PATHNAMES;
+		int flags2 = SMB_FLAGS2_LONG_PATH_COMPONENTS |
+			SMB_FLAGS2_EXTENDED_ATTRIBUTES;	/* EA? not really ... */
+
+		*(req->rq_header + smb_flg) = flags;
+		if (server->mnt->flags & SMB_MOUNT_UNICODE)
+			flags2 |= SMB_FLAGS2_UNICODE_STRINGS;
+		WSET(req->rq_header, smb_flg2, flags2);
+	}
+	*p++ = wct;		/* wct */
+	p += 2 * wct;
+	WSET(p, 0, bcc);
+
+	/* Include the header in the data to send */
+	req->rq_iovlen = 1;
+	req->rq_iov[0].iov_base = req->rq_header;
+	req->rq_iov[0].iov_len  = xmit_len - bcc;
+
+	return req->rq_buffer;
+}
+
+static void
+smb_setup_bcc(struct smb_request *req, __u8 *p)
+{
+	u16 bcc = p - req->rq_buffer;
+	u8 *pbcc = req->rq_header + SMB_HEADER_LEN + 2*SMB_WCT(req->rq_header);
+
+	WSET(pbcc, 0, bcc);
+
+	smb_encode_smb_length(req->rq_header, SMB_HEADER_LEN + 
+			      2*SMB_WCT(req->rq_header) - 2 + bcc);
+
+	/* Include the "bytes" in the data to send */
+	req->rq_iovlen = 2;
+	req->rq_iov[1].iov_base = req->rq_buffer;
+	req->rq_iov[1].iov_len  = bcc;
+}
+
+static int
+smb_proc_seek(struct smb_sb_info *server, __u16 fileid,
+	      __u16 mode, off_t offset)
+{
+	int result;
+	struct smb_request *req;
+
+	result = -ENOMEM;
+	if (! (req = smb_alloc_request(server, 0)))
+		goto out;
+
+	smb_setup_header(req, SMBlseek, 4, 0);
+	WSET(req->rq_header, smb_vwv0, fileid);
+	WSET(req->rq_header, smb_vwv1, mode);
+	DSET(req->rq_header, smb_vwv2, offset);
+	req->rq_flags |= SMB_REQ_NORETRY;
+
+	result = smb_request_ok(req, SMBlseek, 2, 0);
+	if (result < 0) {
+		result = 0;
+		goto out_free;
+	}
+
+	result = DVAL(req->rq_header, smb_vwv0);
+out_free:
+	smb_rput(req);
+out:
+	return result;
+}
+
+static int
+smb_proc_open(struct smb_sb_info *server, struct dentry *dentry, int wish)
+{
+	struct inode *ino = dentry->d_inode;
+	struct smb_inode_info *ei = SMB_I(ino);
+	int mode, read_write = 0x42, read_only = 0x40;
+	int res;
+	char *p;
+	struct smb_request *req;
+
+	/*
+	 * Attempt to open r/w, unless there are no write privileges.
+	 */
+	mode = read_write;
+	if (!(ino->i_mode & (S_IWUSR | S_IWGRP | S_IWOTH)))
+		mode = read_only;
+#if 0
+	/* FIXME: why is this code not in? below we fix it so that a caller
+	   wanting RO doesn't get RW. smb_revalidate_inode does some 
+	   optimization based on access mode. tail -f needs it to be correct.
+
+	   We must open rw since we don't do the open if called a second time
+	   with different 'wish'. Is that not supported by smb servers? */
+	if (!(wish & (O_WRONLY | O_RDWR)))
+		mode = read_only;
+#endif
+
+	res = -ENOMEM;
+	if (! (req = smb_alloc_request(server, PAGE_SIZE)))
+		goto out;
+
+      retry:
+	p = smb_setup_header(req, SMBopen, 2, 0);
+	WSET(req->rq_header, smb_vwv0, mode);
+	WSET(req->rq_header, smb_vwv1, aSYSTEM | aHIDDEN | aDIR);
+	res = smb_simple_encode_path(req, &p, dentry, NULL);
+	if (res < 0)
+		goto out_free;
+	smb_setup_bcc(req, p);
+
+	res = smb_request_ok(req, SMBopen, 7, 0);
+	if (res != 0) {
+		if (mode == read_write &&
+		    (res == -EACCES || res == -ETXTBSY || res == -EROFS))
+		{
+			VERBOSE("%s/%s R/W failed, error=%d, retrying R/O\n",
+				DENTRY_PATH(dentry), res);
+			mode = read_only;
+			req->rq_flags = 0;
+			goto retry;
+		}
+		goto out_free;
+	}
+	/* We should now have data in vwv[0..6]. */
+
+	ei->fileid = WVAL(req->rq_header, smb_vwv0);
+	ei->attr   = WVAL(req->rq_header, smb_vwv1);
+	/* smb_vwv2 has mtime */
+	/* smb_vwv4 has size  */
+	ei->access = (WVAL(req->rq_header, smb_vwv6) & SMB_ACCMASK);
+	ei->open = server->generation;
+
+out_free:
+	smb_rput(req);
+out:
+	return res;
+}
+
+/*
+ * Make sure the file is open, and check that the access
+ * is compatible with the desired access.
+ */
+int
+smb_open(struct dentry *dentry, int wish)
+{
+	struct inode *inode = dentry->d_inode;
+	int result;
+	__u16 access;
+
+	result = -ENOENT;
+	if (!inode) {
+		printk(KERN_ERR "smb_open: no inode for dentry %s/%s\n",
+		       DENTRY_PATH(dentry));
+		goto out;
+	}
+
+	if (!smb_is_open(inode)) {
+		struct smb_sb_info *server = server_from_inode(inode);
+		result = 0;
+		if (!smb_is_open(inode))
+			result = smb_proc_open(server, dentry, wish);
+		if (result)
+			goto out;
+		/*
+		 * A successful open means the path is still valid ...
+		 */
+		smb_renew_times(dentry);
+	}
+
+	/*
+	 * Check whether the access is compatible with the desired mode.
+	 */
+	result = 0;
+	access = SMB_I(inode)->access;
+	if (access != wish && access != SMB_O_RDWR) {
+		PARANOIA("%s/%s access denied, access=%x, wish=%x\n",
+			 DENTRY_PATH(dentry), access, wish);
+		result = -EACCES;
+	}
+out:
+	return result;
+}
+
+static int 
+smb_proc_close(struct smb_sb_info *server, __u16 fileid, __u32 mtime)
+{
+	struct smb_request *req;
+	int result = -ENOMEM;
+
+	if (! (req = smb_alloc_request(server, 0)))
+		goto out;
+
+	smb_setup_header(req, SMBclose, 3, 0);
+	WSET(req->rq_header, smb_vwv0, fileid);
+	DSET(req->rq_header, smb_vwv1, utc2local(server, mtime));
+	req->rq_flags |= SMB_REQ_NORETRY;
+	result = smb_request_ok(req, SMBclose, 0, 0);
+
+	smb_rput(req);
+out:
+	return result;
+}
+
+/*
+ * Win NT 4.0 has an apparent bug in that it fails to update the
+ * modify time when writing to a file. As a workaround, we update
+ * both modify and access time locally, and post the times to the
+ * server when closing the file.
+ */
+static int 
+smb_proc_close_inode(struct smb_sb_info *server, struct inode * ino)
+{
+	struct smb_inode_info *ei = SMB_I(ino);
+	int result = 0;
+	if (smb_is_open(ino))
+	{
+		/*
+		 * We clear the open flag in advance, in case another
+ 		 * process observes the value while we block below.
+		 */
+		ei->open = 0;
+
+		/*
+		 * Kludge alert: SMB timestamps are accurate only to
+		 * two seconds ... round the times to avoid needless
+		 * cache invalidations!
+		 */
+		if (ino->i_mtime.tv_sec & 1) { 
+			ino->i_mtime.tv_sec--;
+			ino->i_mtime.tv_nsec = 0; 
+		}
+		if (ino->i_atime.tv_sec & 1) {
+			ino->i_atime.tv_sec--;
+			ino->i_atime.tv_nsec = 0;
+		}
+		/*
+		 * If the file is open with write permissions,
+		 * update the time stamps to sync mtime and atime.
+		 */
+		if ((server->opt.capabilities & SMB_CAP_UNIX) == 0 &&
+		    (server->opt.protocol >= SMB_PROTOCOL_LANMAN2) &&
+		    !(ei->access == SMB_O_RDONLY))
+		{
+			struct smb_fattr fattr;
+			smb_get_inode_attr(ino, &fattr);
+			smb_proc_setattr_ext(server, ino, &fattr);
+		}
+
+		result = smb_proc_close(server, ei->fileid, ino->i_mtime.tv_sec);
+		/*
+		 * Force a revalidation after closing ... some servers
+		 * don't post the size until the file has been closed.
+		 */
+		if (server->opt.protocol < SMB_PROTOCOL_NT1)
+			ei->oldmtime = 0;
+		ei->closed = jiffies;
+	}
+	return result;
+}
+
+int
+smb_close(struct inode *ino)
+{
+	int result = 0;
+
+	if (smb_is_open(ino)) {
+		struct smb_sb_info *server = server_from_inode(ino);
+		result = smb_proc_close_inode(server, ino);
+	}
+	return result;
+}
+
+/*
+ * This is used to close a file following a failed instantiate.
+ * Since we don't have an inode, we can't use any of the above.
+ */
+int
+smb_close_fileid(struct dentry *dentry, __u16 fileid)
+{
+	struct smb_sb_info *server = server_from_dentry(dentry);
+	int result;
+
+	result = smb_proc_close(server, fileid, get_seconds());
+	return result;
+}
+
+/* In smb_proc_read and smb_proc_write we do not retry, because the
+   file-id would not be valid after a reconnection. */
+
+static void
+smb_proc_read_data(struct smb_request *req)
+{
+	req->rq_iov[0].iov_base = req->rq_buffer;
+	req->rq_iov[0].iov_len  = 3;
+
+	req->rq_iov[1].iov_base = req->rq_page;
+	req->rq_iov[1].iov_len  = req->rq_rsize;
+	req->rq_iovlen = 2;
+
+	req->rq_rlen = smb_len(req->rq_header) + 4 - req->rq_bytes_recvd;
+}
+
+static int
+smb_proc_read(struct inode *inode, loff_t offset, int count, char *data)
+{
+	struct smb_sb_info *server = server_from_inode(inode);
+	__u16 returned_count, data_len;
+	unsigned char *buf;
+	int result;
+	struct smb_request *req;
+	u8 rbuf[4];
+
+	result = -ENOMEM;
+	if (! (req = smb_alloc_request(server, 0)))
+		goto out;
+
+	smb_setup_header(req, SMBread, 5, 0);
+	buf = req->rq_header;
+	WSET(buf, smb_vwv0, SMB_I(inode)->fileid);
+	WSET(buf, smb_vwv1, count);
+	DSET(buf, smb_vwv2, offset);
+	WSET(buf, smb_vwv4, 0);
+
+	req->rq_page = data;
+	req->rq_rsize = count;
+	req->rq_callback = smb_proc_read_data;
+	req->rq_buffer = rbuf;
+	req->rq_flags |= SMB_REQ_NORETRY | SMB_REQ_STATIC;
+
+	result = smb_request_ok(req, SMBread, 5, -1);
+	if (result < 0)
+		goto out_free;
+	returned_count = WVAL(req->rq_header, smb_vwv0);
+
+	data_len = WVAL(rbuf, 1);
+
+	if (returned_count != data_len) {
+		printk(KERN_NOTICE "smb_proc_read: returned != data_len\n");
+		printk(KERN_NOTICE "smb_proc_read: ret_c=%d, data_len=%d\n",
+		       returned_count, data_len);
+	}
+	result = data_len;
+
+out_free:
+	smb_rput(req);
+out:
+	VERBOSE("ino=%ld, fileid=%d, count=%d, result=%d\n",
+		inode->i_ino, SMB_I(inode)->fileid, count, result);
+	return result;
+}
+
+static int
+smb_proc_write(struct inode *inode, loff_t offset, int count, const char *data)
+{
+	struct smb_sb_info *server = server_from_inode(inode);
+	int result;
+	u16 fileid = SMB_I(inode)->fileid;
+	u8 buf[4];
+	struct smb_request *req;
+
+	result = -ENOMEM;
+	if (! (req = smb_alloc_request(server, 0)))
+		goto out;
+
+	VERBOSE("ino=%ld, fileid=%d, count=%d@%Ld\n",
+		inode->i_ino, fileid, count, offset);
+
+	smb_setup_header(req, SMBwrite, 5, count + 3);
+	WSET(req->rq_header, smb_vwv0, fileid);
+	WSET(req->rq_header, smb_vwv1, count);
+	DSET(req->rq_header, smb_vwv2, offset);
+	WSET(req->rq_header, smb_vwv4, 0);
+
+	buf[0] = 1;
+	WSET(buf, 1, count);	/* yes, again ... */
+	req->rq_iov[1].iov_base = buf;
+	req->rq_iov[1].iov_len = 3;
+	req->rq_iov[2].iov_base = (char *) data;
+	req->rq_iov[2].iov_len = count;
+	req->rq_iovlen = 3;
+	req->rq_flags |= SMB_REQ_NORETRY;
+
+	result = smb_request_ok(req, SMBwrite, 1, 0);
+	if (result >= 0)
+		result = WVAL(req->rq_header, smb_vwv0);
+
+	smb_rput(req);
+out:
+	return result;
+}
+
+/*
+ * In smb_proc_readX and smb_proc_writeX we do not retry, because the
+ * file-id would not be valid after a reconnection.
+ */
+
+#define SMB_READX_MAX_PAD      64
+static void
+smb_proc_readX_data(struct smb_request *req)
+{
+	/* header length, excluding the netbios length (-4) */
+	int hdrlen = SMB_HEADER_LEN + req->rq_resp_wct*2 - 2;
+	int data_off = WVAL(req->rq_header, smb_vwv6);
+
+	/*
+	 * Some genius made the padding to the data bytes arbitrary.
+	 * So we must first calculate the amount of padding used by the server.
+	 */
+	data_off -= hdrlen;
+	if (data_off > SMB_READX_MAX_PAD || data_off < 0) {
+		PARANOIA("offset is larger than SMB_READX_MAX_PAD or negative!\n");
+		PARANOIA("%d > %d || %d < 0\n", data_off, SMB_READX_MAX_PAD, data_off);
+		req->rq_rlen = req->rq_bufsize + 1;
+		return;
+	}
+	req->rq_iov[0].iov_base = req->rq_buffer;
+	req->rq_iov[0].iov_len  = data_off;
+
+	req->rq_iov[1].iov_base = req->rq_page;
+	req->rq_iov[1].iov_len  = req->rq_rsize;
+	req->rq_iovlen = 2;
+
+	req->rq_rlen = smb_len(req->rq_header) + 4 - req->rq_bytes_recvd;
+}
+
+static int
+smb_proc_readX(struct inode *inode, loff_t offset, int count, char *data)
+{
+	struct smb_sb_info *server = server_from_inode(inode);
+	unsigned char *buf;
+	int result;
+	struct smb_request *req;
+	static char pad[SMB_READX_MAX_PAD];
+
+	result = -ENOMEM;
+	if (! (req = smb_alloc_request(server, 0)))
+		goto out;
+
+	smb_setup_header(req, SMBreadX, 12, 0);
+	buf = req->rq_header;
+	WSET(buf, smb_vwv0, 0x00ff);
+	WSET(buf, smb_vwv1, 0);
+	WSET(buf, smb_vwv2, SMB_I(inode)->fileid);
+	DSET(buf, smb_vwv3, (u32)offset);               /* low 32 bits */
+	WSET(buf, smb_vwv5, count);
+	WSET(buf, smb_vwv6, 0);
+	DSET(buf, smb_vwv7, 0);
+	WSET(buf, smb_vwv9, 0);
+	DSET(buf, smb_vwv10, (u32)(offset >> 32));      /* high 32 bits */
+	WSET(buf, smb_vwv11, 0);
+
+	req->rq_page = data;
+	req->rq_rsize = count;
+	req->rq_callback = smb_proc_readX_data;
+	req->rq_buffer = pad;
+	req->rq_bufsize = SMB_READX_MAX_PAD;
+	req->rq_flags |= SMB_REQ_STATIC | SMB_REQ_NORETRY;
+
+	result = smb_request_ok(req, SMBreadX, 12, -1);
+	if (result < 0)
+		goto out_free;
+	result = WVAL(req->rq_header, smb_vwv5);
+
+out_free:
+	smb_rput(req);
+out:
+	VERBOSE("ino=%ld, fileid=%d, count=%d, result=%d\n",
+		inode->i_ino, SMB_I(inode)->fileid, count, result);
+	return result;
+}
+
+static int
+smb_proc_writeX(struct inode *inode, loff_t offset, int count, const char *data)
+{
+	struct smb_sb_info *server = server_from_inode(inode);
+	int result;
+	u8 *p;
+	static u8 pad[4];
+	struct smb_request *req;
+
+	result = -ENOMEM;
+	if (! (req = smb_alloc_request(server, 0)))
+		goto out;
+
+	VERBOSE("ino=%ld, fileid=%d, count=%d@%Ld\n",
+		inode->i_ino, SMB_I(inode)->fileid, count, offset);
+
+	p = smb_setup_header(req, SMBwriteX, 14, count + 1);
+	WSET(req->rq_header, smb_vwv0, 0x00ff);
+	WSET(req->rq_header, smb_vwv1, 0);
+	WSET(req->rq_header, smb_vwv2, SMB_I(inode)->fileid);
+	DSET(req->rq_header, smb_vwv3, (u32)offset);	/* low 32 bits */
+	DSET(req->rq_header, smb_vwv5, 0);
+	WSET(req->rq_header, smb_vwv7, 0);		/* write mode */
+	WSET(req->rq_header, smb_vwv8, 0);
+	WSET(req->rq_header, smb_vwv9, 0);
+	WSET(req->rq_header, smb_vwv10, count);		/* data length */
+	WSET(req->rq_header, smb_vwv11, smb_vwv12 + 2 + 1);
+	DSET(req->rq_header, smb_vwv12, (u32)(offset >> 32));
+
+	req->rq_iov[1].iov_base = pad;
+	req->rq_iov[1].iov_len = 1;
+	req->rq_iov[2].iov_base = (char *) data;
+	req->rq_iov[2].iov_len = count;
+	req->rq_iovlen = 3;
+	req->rq_flags |= SMB_REQ_NORETRY;
+
+	result = smb_request_ok(req, SMBwriteX, 6, 0);
+ 	if (result >= 0)
+		result = WVAL(req->rq_header, smb_vwv2);
+
+	smb_rput(req);
+out:
+	return result;
+}
+
+int
+smb_proc_create(struct dentry *dentry, __u16 attr, time_t ctime, __u16 *fileid)
+{
+	struct smb_sb_info *server = server_from_dentry(dentry);
+	char *p;
+	int result;
+	struct smb_request *req;
+
+	result = -ENOMEM;
+	if (! (req = smb_alloc_request(server, PAGE_SIZE)))
+		goto out;
+
+	p = smb_setup_header(req, SMBcreate, 3, 0);
+	WSET(req->rq_header, smb_vwv0, attr);
+	DSET(req->rq_header, smb_vwv1, utc2local(server, ctime));
+	result = smb_simple_encode_path(req, &p, dentry, NULL);
+	if (result < 0)
+		goto out_free;
+	smb_setup_bcc(req, p);
+
+	result = smb_request_ok(req, SMBcreate, 1, 0);
+	if (result < 0)
+		goto out_free;
+
+	*fileid = WVAL(req->rq_header, smb_vwv0);
+	result = 0;
+
+out_free:
+	smb_rput(req);
+out:
+	return result;
+}
+
+int
+smb_proc_mv(struct dentry *old_dentry, struct dentry *new_dentry)
+{
+	struct smb_sb_info *server = server_from_dentry(old_dentry);
+	char *p;
+	int result;
+	struct smb_request *req;
+
+	result = -ENOMEM;
+	if (! (req = smb_alloc_request(server, PAGE_SIZE)))
+		goto out;
+
+	p = smb_setup_header(req, SMBmv, 1, 0);
+	WSET(req->rq_header, smb_vwv0, aSYSTEM | aHIDDEN | aDIR);
+	result = smb_simple_encode_path(req, &p, old_dentry, NULL);
+	if (result < 0)
+		goto out_free;
+	result = smb_simple_encode_path(req, &p, new_dentry, NULL);
+	if (result < 0)
+		goto out_free;
+	smb_setup_bcc(req, p);
+
+	if ((result = smb_request_ok(req, SMBmv, 0, 0)) < 0)
+		goto out_free;
+	result = 0;
+
+out_free:
+	smb_rput(req);
+out:
+	return result;
+}
+
+/*
+ * Code common to mkdir and rmdir.
+ */
+static int
+smb_proc_generic_command(struct dentry *dentry, __u8 command)
+{
+	struct smb_sb_info *server = server_from_dentry(dentry);
+	char *p;
+	int result;
+	struct smb_request *req;
+
+	result = -ENOMEM;
+	if (! (req = smb_alloc_request(server, PAGE_SIZE)))
+		goto out;
+
+	p = smb_setup_header(req, command, 0, 0);
+	result = smb_simple_encode_path(req, &p, dentry, NULL);
+	if (result < 0)
+		goto out_free;
+	smb_setup_bcc(req, p);
+
+	result = smb_request_ok(req, command, 0, 0);
+	if (result < 0)
+		goto out_free;
+	result = 0;
+
+out_free:
+	smb_rput(req);
+out:
+	return result;
+}
+
+int
+smb_proc_mkdir(struct dentry *dentry)
+{
+	return smb_proc_generic_command(dentry, SMBmkdir);
+}
+
+int
+smb_proc_rmdir(struct dentry *dentry)
+{
+	return smb_proc_generic_command(dentry, SMBrmdir);
+}
+
+#if SMBFS_POSIX_UNLINK
+/*
+ * Removes readonly attribute from a file. Used by unlink to give posix
+ * semantics.
+ */
+static int
+smb_set_rw(struct dentry *dentry,struct smb_sb_info *server)
+{
+	int result;
+	struct smb_fattr fattr;
+
+	/* FIXME: cifsUE should allow removing a readonly file. */
+
+	/* first get current attribute */
+	smb_init_dirent(server, &fattr);
+	result = server->ops->getattr(server, dentry, &fattr);
+	smb_finish_dirent(server, &fattr);
+	if (result < 0)
+		return result;
+
+	/* if RONLY attribute is set, remove it */
+	if (fattr.attr & aRONLY) {  /* read only attribute is set */
+		fattr.attr &= ~aRONLY;
+		result = smb_proc_setattr_core(server, dentry, fattr.attr);
+	}
+	return result;
+}
+#endif
+
+int
+smb_proc_unlink(struct dentry *dentry)
+{
+	struct smb_sb_info *server = server_from_dentry(dentry);
+	int flag = 0;
+	char *p;
+	int result;
+	struct smb_request *req;
+
+	result = -ENOMEM;
+	if (! (req = smb_alloc_request(server, PAGE_SIZE)))
+		goto out;
+
+      retry:
+	p = smb_setup_header(req, SMBunlink, 1, 0);
+	WSET(req->rq_header, smb_vwv0, aSYSTEM | aHIDDEN);
+	result = smb_simple_encode_path(req, &p, dentry, NULL);
+	if (result < 0)
+		goto out_free;
+	smb_setup_bcc(req, p);
+
+	if ((result = smb_request_ok(req, SMBunlink, 0, 0)) < 0) {
+#if SMBFS_POSIX_UNLINK
+		if (result == -EACCES && !flag) {
+			/* Posix semantics is for the read-only state
+			   of a file to be ignored in unlink(). In the
+			   SMB world a unlink() is refused on a
+			   read-only file. To make things easier for
+			   unix users we try to override the files
+			   permission if the unlink fails with the
+			   right error.
+			   This introduces a race condition that could
+			   lead to a file being written by someone who
+			   shouldn't have access, but as far as I can
+			   tell that is unavoidable */
+
+			/* remove RONLY attribute and try again */
+			result = smb_set_rw(dentry,server);
+			if (result == 0) {
+				flag = 1;
+				req->rq_flags = 0;
+				goto retry;
+			}
+		}
+#endif
+		goto out_free;
+	}
+	result = 0;
+
+out_free:
+	smb_rput(req);
+out:
+	return result;
+}
+
+int
+smb_proc_flush(struct smb_sb_info *server, __u16 fileid)
+{
+	int result;
+	struct smb_request *req;
+
+	result = -ENOMEM;
+	if (! (req = smb_alloc_request(server, 0)))
+		goto out;
+
+	smb_setup_header(req, SMBflush, 1, 0);
+	WSET(req->rq_header, smb_vwv0, fileid);
+	req->rq_flags |= SMB_REQ_NORETRY;
+	result = smb_request_ok(req, SMBflush, 0, 0);
+
+	smb_rput(req);
+out:
+	return result;
+}
+
+static int
+smb_proc_trunc32(struct inode *inode, loff_t length)
+{
+	/*
+	 * Writing 0bytes is old-SMB magic for truncating files.
+	 * MAX_NON_LFS should prevent this from being called with a too
+	 * large offset.
+	 */
+	return smb_proc_write(inode, length, 0, NULL);
+}
+
+static int
+smb_proc_trunc64(struct inode *inode, loff_t length)
+{
+	struct smb_sb_info *server = server_from_inode(inode);
+	int result;
+	char *param;
+	char *data;
+	struct smb_request *req;
+
+	result = -ENOMEM;
+	if (! (req = smb_alloc_request(server, 14)))
+		goto out;
+
+	param = req->rq_buffer;
+	data = req->rq_buffer + 6;
+
+	/* FIXME: must we also set allocation size? winNT seems to do that */
+	WSET(param, 0, SMB_I(inode)->fileid);
+	WSET(param, 2, SMB_SET_FILE_END_OF_FILE_INFO);
+	WSET(param, 4, 0);
+	LSET(data, 0, length);
+
+	req->rq_trans2_command = TRANSACT2_SETFILEINFO;
+	req->rq_ldata = 8;
+	req->rq_data  = data;
+	req->rq_lparm = 6;
+	req->rq_parm  = param;
+	req->rq_flags |= SMB_REQ_NORETRY;
+	result = smb_add_request(req);
+	if (result < 0)
+		goto out_free;
+
+	result = 0;
+	if (req->rq_rcls != 0)
+		result = smb_errno(req);
+
+out_free:
+	smb_rput(req);
+out:
+	return result;
+}
+
+static int
+smb_proc_trunc95(struct inode *inode, loff_t length)
+{
+	struct smb_sb_info *server = server_from_inode(inode);
+	int result = smb_proc_trunc32(inode, length);
+ 
+	/*
+	 * win9x doesn't appear to update the size immediately.
+	 * It will return the old file size after the truncate,
+	 * confusing smbfs. So we force an update.
+	 *
+	 * FIXME: is this still necessary?
+	 */
+	smb_proc_flush(server, SMB_I(inode)->fileid);
+	return result;
+}
+
+static void
+smb_init_dirent(struct smb_sb_info *server, struct smb_fattr *fattr)
+{
+	memset(fattr, 0, sizeof(*fattr));
+
+	fattr->f_nlink = 1;
+	fattr->f_uid = server->mnt->uid;
+	fattr->f_gid = server->mnt->gid;
+	fattr->f_blksize = SMB_ST_BLKSIZE;
+	fattr->f_unix = 0;
+}
+
+static void
+smb_finish_dirent(struct smb_sb_info *server, struct smb_fattr *fattr)
+{
+	if (fattr->f_unix)
+		return;
+
+	fattr->f_mode = server->mnt->file_mode;
+	if (fattr->attr & aDIR) {
+		fattr->f_mode = server->mnt->dir_mode;
+		fattr->f_size = SMB_ST_BLKSIZE;
+	}
+	/* Check the read-only flag */
+	if (fattr->attr & aRONLY)
+		fattr->f_mode &= ~(S_IWUSR | S_IWGRP | S_IWOTH);
+
+	/* How many 512 byte blocks do we need for this file? */
+	fattr->f_blocks = 0;
+	if (fattr->f_size != 0)
+		fattr->f_blocks = 1 + ((fattr->f_size-1) >> 9);
+	return;
+}
+
+void
+smb_init_root_dirent(struct smb_sb_info *server, struct smb_fattr *fattr,
+		     struct super_block *sb)
+{
+	smb_init_dirent(server, fattr);
+	fattr->attr = aDIR;
+	fattr->f_ino = 2; /* traditional root inode number */
+	fattr->f_mtime = current_fs_time(sb);
+	smb_finish_dirent(server, fattr);
+}
+
+/*
+ * Decode a dirent for old protocols
+ *
+ * qname is filled with the decoded, and possibly translated, name.
+ * fattr receives decoded attributes
+ *
+ * Bugs Noted:
+ * (1) Pathworks servers may pad the name with extra spaces.
+ */
+static char *
+smb_decode_short_dirent(struct smb_sb_info *server, char *p,
+			struct qstr *qname, struct smb_fattr *fattr,
+			unsigned char *name_buf)
+{
+	int len;
+
+	/*
+	 * SMB doesn't have a concept of inode numbers ...
+	 */
+	smb_init_dirent(server, fattr);
+	fattr->f_ino = 0;	/* FIXME: do we need this? */
+
+	p += SMB_STATUS_SIZE;	/* reserved (search_status) */
+	fattr->attr = *p;
+	fattr->f_mtime.tv_sec = date_dos2unix(server, WVAL(p, 3), WVAL(p, 1));
+	fattr->f_mtime.tv_nsec = 0;
+	fattr->f_size = DVAL(p, 5);
+	fattr->f_ctime = fattr->f_mtime;
+	fattr->f_atime = fattr->f_mtime;
+	qname->name = p + 9;
+	len = strnlen(qname->name, 12);
+
+	/*
+	 * Trim trailing blanks for Pathworks servers
+	 */
+	while (len > 2 && qname->name[len-1] == ' ')
+		len--;
+
+	smb_finish_dirent(server, fattr);
+
+#if 0
+	/* FIXME: These only work for ascii chars, and recent smbmount doesn't
+	   allow the flag to be set anyway. It kills const. Remove? */
+	switch (server->opt.case_handling) {
+	case SMB_CASE_UPPER:
+		str_upper(entry->name, len);
+		break;
+	case SMB_CASE_LOWER:
+		str_lower(entry->name, len);
+		break;
+	default:
+		break;
+	}
+#endif
+
+	qname->len = 0;
+	len = server->ops->convert(name_buf, SMB_MAXNAMELEN,
+				   qname->name, len,
+				   server->remote_nls, server->local_nls);
+	if (len > 0) {
+		qname->len = len;
+		qname->name = name_buf;
+		DEBUG1("len=%d, name=%.*s\n",qname->len,qname->len,qname->name);
+	}
+
+	return p + 22;
+}
+
+/*
+ * This routine is used to read in directory entries from the network.
+ * Note that it is for short directory name seeks, i.e.: protocol <
+ * SMB_PROTOCOL_LANMAN2
+ */
+static int
+smb_proc_readdir_short(struct file *filp, void *dirent, filldir_t filldir,
+		       struct smb_cache_control *ctl)
+{
+	struct dentry *dir = filp->f_dentry;
+	struct smb_sb_info *server = server_from_dentry(dir);
+	struct qstr qname;
+	struct smb_fattr fattr;
+	char *p;
+	int result;
+	int i, first, entries_seen, entries;
+	int entries_asked = (server->opt.max_xmit - 100) / SMB_DIRINFO_SIZE;
+	__u16 bcc;
+	__u16 count;
+	char status[SMB_STATUS_SIZE];
+	static struct qstr mask = {
+		.name	= "*.*",
+		.len	= 3,
+	};
+	unsigned char *last_status;
+	struct smb_request *req;
+	unsigned char *name_buf;
+
+	VERBOSE("%s/%s\n", DENTRY_PATH(dir));
+
+	lock_kernel();
+
+	result = -ENOMEM;
+	if (! (name_buf = kmalloc(SMB_MAXNAMELEN, GFP_KERNEL)))
+		goto out;
+
+	first = 1;
+	entries = 0;
+	entries_seen = 2; /* implicit . and .. */
+
+	result = -ENOMEM;
+	if (! (req = smb_alloc_request(server, server->opt.max_xmit)))
+		goto out_name;
+
+	while (1) {
+		p = smb_setup_header(req, SMBsearch, 2, 0);
+		WSET(req->rq_header, smb_vwv0, entries_asked);
+		WSET(req->rq_header, smb_vwv1, aDIR);
+		if (first == 1) {
+			result = smb_simple_encode_path(req, &p, dir, &mask);
+			if (result < 0)
+				goto out_free;
+			if (p + 3 > (char *)req->rq_buffer + req->rq_bufsize) {
+				result = -ENAMETOOLONG;
+				goto out_free;
+			}
+			*p++ = 5;
+			WSET(p, 0, 0);
+			p += 2;
+			first = 0;
+		} else {
+			if (p + 5 + SMB_STATUS_SIZE >
+			    (char *)req->rq_buffer + req->rq_bufsize) {
+				result = -ENAMETOOLONG;
+				goto out_free;
+			}
+				
+			*p++ = 4;
+			*p++ = 0;
+			*p++ = 5;
+			WSET(p, 0, SMB_STATUS_SIZE);
+			p += 2;
+			memcpy(p, status, SMB_STATUS_SIZE);
+			p += SMB_STATUS_SIZE;
+		}
+
+		smb_setup_bcc(req, p);
+
+		result = smb_request_ok(req, SMBsearch, 1, -1);
+		if (result < 0) {
+			if ((req->rq_rcls == ERRDOS) && 
+			    (req->rq_err  == ERRnofiles))
+				break;
+			goto out_free;
+		}
+		count = WVAL(req->rq_header, smb_vwv0);
+		if (count <= 0)
+			break;
+
+		result = -EIO;
+		bcc = smb_bcc(req->rq_header);
+		if (bcc != count * SMB_DIRINFO_SIZE + 3)
+			goto out_free;
+		p = req->rq_buffer + 3;
+
+
+		/* Make sure the response fits in the buffer. Fixed sized 
+		   entries means we don't have to check in the decode loop. */
+
+		last_status = req->rq_buffer + 3 + (count-1) * SMB_DIRINFO_SIZE;
+
+		if (last_status + SMB_DIRINFO_SIZE >=
+		    req->rq_buffer + req->rq_bufsize) {
+			printk(KERN_ERR "smb_proc_readdir_short: "
+			       "last dir entry outside buffer! "
+			       "%d@%p  %d@%p\n", SMB_DIRINFO_SIZE, last_status,
+			       req->rq_bufsize, req->rq_buffer);
+			goto out_free;
+		}
+
+		/* Read the last entry into the status field. */
+		memcpy(status, last_status, SMB_STATUS_SIZE);
+
+
+		/* Now we are ready to parse smb directory entries. */
+
+		for (i = 0; i < count; i++) {
+			p = smb_decode_short_dirent(server, p, 
+						    &qname, &fattr, name_buf);
+			if (qname.len == 0)
+				continue;
+
+			if (entries_seen == 2 && qname.name[0] == '.') {
+				if (qname.len == 1)
+					continue;
+				if (qname.name[1] == '.' && qname.len == 2)
+					continue;
+			}
+			if (!smb_fill_cache(filp, dirent, filldir, ctl, 
+					    &qname, &fattr))
+				;	/* stop reading? */
+			entries_seen++;
+		}
+	}
+	result = entries;
+
+out_free:
+	smb_rput(req);
+out_name:
+	kfree(name_buf);
+out:
+	unlock_kernel();
+	return result;
+}
+
+static void smb_decode_unix_basic(struct smb_fattr *fattr, struct smb_sb_info *server, char *p)
+{
+	u64 size, disk_bytes;
+
+	/* FIXME: verify nls support. all is sent as utf8? */
+
+	fattr->f_unix = 1;
+	fattr->f_mode = 0;
+
+	/* FIXME: use the uniqueID from the remote instead? */
+	/* 0 L file size in bytes */
+	/* 8 L file size on disk in bytes (block count) */
+	/* 40 L uid */
+	/* 48 L gid */
+	/* 56 W file type */
+	/* 60 L devmajor */
+	/* 68 L devminor */
+	/* 76 L unique ID (inode) */
+	/* 84 L permissions */
+	/* 92 L link count */
+
+	size = LVAL(p, 0);
+	disk_bytes = LVAL(p, 8);
+
+	/*
+	 * Some samba versions round up on-disk byte usage
+	 * to 1MB boundaries, making it useless. When seeing
+	 * that, use the size instead.
+	 */
+	if (!(disk_bytes & 0xfffff))
+		disk_bytes = size+511;
+
+	fattr->f_size = size;
+	fattr->f_blocks = disk_bytes >> 9;
+	fattr->f_ctime = smb_ntutc2unixutc(LVAL(p, 16));
+	fattr->f_atime = smb_ntutc2unixutc(LVAL(p, 24));
+	fattr->f_mtime = smb_ntutc2unixutc(LVAL(p, 32));
+
+	if (server->mnt->flags & SMB_MOUNT_UID)
+		fattr->f_uid = server->mnt->uid;
+	else
+		fattr->f_uid = LVAL(p, 40);
+
+	if (server->mnt->flags & SMB_MOUNT_GID)
+		fattr->f_gid = server->mnt->gid;
+	else
+		fattr->f_gid = LVAL(p, 48);
+
+	fattr->f_mode |= smb_filetype_to_mode(WVAL(p, 56));
+
+	if (S_ISBLK(fattr->f_mode) || S_ISCHR(fattr->f_mode)) {
+		__u64 major = LVAL(p, 60);
+		__u64 minor = LVAL(p, 68);
+
+		fattr->f_rdev = MKDEV(major & 0xffffffff, minor & 0xffffffff);
+		if (MAJOR(fattr->f_rdev) != (major & 0xffffffff) ||
+	    	MINOR(fattr->f_rdev) != (minor & 0xffffffff))
+			fattr->f_rdev = 0;
+	}
+
+	fattr->f_mode |= LVAL(p, 84);
+
+	if ( (server->mnt->flags & SMB_MOUNT_DMODE) &&
+	     (S_ISDIR(fattr->f_mode)) )
+		fattr->f_mode = (server->mnt->dir_mode & S_IRWXUGO) | S_IFDIR;
+	else if ( (server->mnt->flags & SMB_MOUNT_FMODE) &&
+	          !(S_ISDIR(fattr->f_mode)) )
+		fattr->f_mode = (server->mnt->file_mode & S_IRWXUGO) |
+				(fattr->f_mode & S_IFMT);
+
+}
+
+/*
+ * Interpret a long filename structure using the specified info level:
+ *   level 1 for anything below NT1 protocol
+ *   level 260 for NT1 protocol
+ *
+ * qname is filled with the decoded, and possibly translated, name
+ * fattr receives decoded attributes.
+ *
+ * Bugs Noted:
+ * (1) Win NT 4.0 appends a null byte to names and counts it in the length!
+ */
+static char *
+smb_decode_long_dirent(struct smb_sb_info *server, char *p, int level,
+		       struct qstr *qname, struct smb_fattr *fattr,
+		       unsigned char *name_buf)
+{
+	char *result;
+	unsigned int len = 0;
+	int n;
+	__u16 date, time;
+	int unicode = (server->mnt->flags & SMB_MOUNT_UNICODE);
+
+	/*
+	 * SMB doesn't have a concept of inode numbers ...
+	 */
+	smb_init_dirent(server, fattr);
+	fattr->f_ino = 0;	/* FIXME: do we need this? */
+
+	switch (level) {
+	case 1:
+		len = *((unsigned char *) p + 22);
+		qname->name = p + 23;
+		result = p + 24 + len;
+
+		date = WVAL(p, 0);
+		time = WVAL(p, 2);
+		fattr->f_ctime.tv_sec = date_dos2unix(server, date, time);
+		fattr->f_ctime.tv_nsec = 0;
+
+		date = WVAL(p, 4);
+		time = WVAL(p, 6);
+		fattr->f_atime.tv_sec = date_dos2unix(server, date, time);
+		fattr->f_atime.tv_nsec = 0;
+
+		date = WVAL(p, 8);
+		time = WVAL(p, 10);
+		fattr->f_mtime.tv_sec = date_dos2unix(server, date, time);
+		fattr->f_mtime.tv_nsec = 0;
+		fattr->f_size = DVAL(p, 12);
+		/* ULONG allocation size */
+		fattr->attr = WVAL(p, 20);
+
+		VERBOSE("info 1 at %p, len=%d, name=%.*s\n",
+			p, len, len, qname->name);
+		break;
+	case 260:
+		result = p + WVAL(p, 0);
+		len = DVAL(p, 60);
+		if (len > 255) len = 255;
+		/* NT4 null terminates, unless we are using unicode ... */
+		qname->name = p + 94;
+		if (!unicode && len && qname->name[len-1] == '\0')
+			len--;
+
+		fattr->f_ctime = smb_ntutc2unixutc(LVAL(p, 8));
+		fattr->f_atime = smb_ntutc2unixutc(LVAL(p, 16));
+		fattr->f_mtime = smb_ntutc2unixutc(LVAL(p, 24));
+		/* change time (32) */
+		fattr->f_size = LVAL(p, 40);
+		/* alloc size (48) */
+		fattr->attr = DVAL(p, 56);
+
+		VERBOSE("info 260 at %p, len=%d, name=%.*s\n",
+			p, len, len, qname->name);
+		break;
+	case SMB_FIND_FILE_UNIX:
+		result = p + WVAL(p, 0);
+		qname->name = p + 108;
+
+		len = strlen(qname->name);
+		/* FIXME: should we check the length?? */
+
+		p += 8;
+		smb_decode_unix_basic(fattr, server, p);
+		VERBOSE("info SMB_FIND_FILE_UNIX at %p, len=%d, name=%.*s\n",
+			p, len, len, qname->name);
+		break;
+	default:
+		PARANOIA("Unknown info level %d\n", level);
+		result = p + WVAL(p, 0);
+		goto out;
+	}
+
+	smb_finish_dirent(server, fattr);
+
+#if 0
+	/* FIXME: These only work for ascii chars, and recent smbmount doesn't
+	   allow the flag to be set anyway. Remove? */
+	switch (server->opt.case_handling) {
+	case SMB_CASE_UPPER:
+		str_upper(qname->name, len);
+		break;
+	case SMB_CASE_LOWER:
+		str_lower(qname->name, len);
+		break;
+	default:
+		break;
+	}
+#endif
+
+	qname->len = 0;
+	n = server->ops->convert(name_buf, SMB_MAXNAMELEN,
+				 qname->name, len,
+				 server->remote_nls, server->local_nls);
+	if (n > 0) {
+		qname->len = n;
+		qname->name = name_buf;
+	}
+
+out:
+	return result;
+}
+
+/* findfirst/findnext flags */
+#define SMB_CLOSE_AFTER_FIRST (1<<0)
+#define SMB_CLOSE_IF_END (1<<1)
+#define SMB_REQUIRE_RESUME_KEY (1<<2)
+#define SMB_CONTINUE_BIT (1<<3)
+
+/*
+ * Note: samba-2.0.7 (at least) has a very similar routine, cli_list, in
+ * source/libsmb/clilist.c. When looking for smb bugs in the readdir code,
+ * go there for advise.
+ *
+ * Bugs Noted:
+ * (1) When using Info Level 1 Win NT 4.0 truncates directory listings 
+ * for certain patterns of names and/or lengths. The breakage pattern
+ * is completely reproducible and can be toggled by the creation of a
+ * single file. (E.g. echo hi >foo breaks, rm -f foo works.)
+ */
+static int
+smb_proc_readdir_long(struct file *filp, void *dirent, filldir_t filldir,
+		      struct smb_cache_control *ctl)
+{
+	struct dentry *dir = filp->f_dentry;
+	struct smb_sb_info *server = server_from_dentry(dir);
+	struct qstr qname;
+	struct smb_fattr fattr;
+
+	unsigned char *p, *lastname;
+	char *mask, *param;
+	__u16 command;
+	int first, entries_seen;
+
+	/* Both NT and OS/2 accept info level 1 (but see note below). */
+	int info_level = 260;
+	const int max_matches = 512;
+
+	unsigned int ff_searchcount = 0;
+	unsigned int ff_eos = 0;
+	unsigned int ff_lastname = 0;
+	unsigned int ff_dir_handle = 0;
+	unsigned int loop_count = 0;
+	unsigned int mask_len, i;
+	int result;
+	struct smb_request *req;
+	unsigned char *name_buf;
+	static struct qstr star = {
+		.name	= "*",
+		.len	= 1,
+	};
+
+	lock_kernel();
+
+	/*
+	 * We always prefer unix style. Use info level 1 for older
+	 * servers that don't do 260.
+	 */
+	if (server->opt.capabilities & SMB_CAP_UNIX)
+		info_level = SMB_FIND_FILE_UNIX;
+	else if (server->opt.protocol < SMB_PROTOCOL_NT1)
+		info_level = 1;
+
+	result = -ENOMEM;
+	if (! (name_buf = kmalloc(SMB_MAXNAMELEN+2, GFP_KERNEL)))
+		goto out;
+	if (! (req = smb_alloc_request(server, server->opt.max_xmit)))
+		goto out_name;
+	param = req->rq_buffer;
+
+	/*
+	 * Encode the initial path
+	 */
+	mask = param + 12;
+
+	result = smb_encode_path(server, mask, SMB_MAXPATHLEN+1, dir, &star);
+	if (result <= 0)
+		goto out_free;
+	mask_len = result - 1;	/* mask_len is strlen, not #bytes */
+	result = 0;
+	first = 1;
+	VERBOSE("starting mask_len=%d, mask=%s\n", mask_len, mask);
+
+	entries_seen = 2;
+	ff_eos = 0;
+
+	while (ff_eos == 0) {
+		loop_count += 1;
+		if (loop_count > 10) {
+			printk(KERN_WARNING "smb_proc_readdir_long: "
+			       "Looping in FIND_NEXT??\n");
+			result = -EIO;
+			break;
+		}
+
+		if (first != 0) {
+			command = TRANSACT2_FINDFIRST;
+			WSET(param, 0, aSYSTEM | aHIDDEN | aDIR);
+			WSET(param, 2, max_matches);	/* max count */
+			WSET(param, 4, SMB_CLOSE_IF_END);
+			WSET(param, 6, info_level);
+			DSET(param, 8, 0);
+		} else {
+			command = TRANSACT2_FINDNEXT;
+
+			VERBOSE("handle=0x%X, lastname=%d, mask=%.*s\n",
+				ff_dir_handle, ff_lastname, mask_len, mask);
+
+			WSET(param, 0, ff_dir_handle);	/* search handle */
+			WSET(param, 2, max_matches);	/* max count */
+			WSET(param, 4, info_level);
+			DSET(param, 6, 0);
+			WSET(param, 10, SMB_CONTINUE_BIT|SMB_CLOSE_IF_END);
+		}
+
+		req->rq_trans2_command = command;
+		req->rq_ldata = 0;
+		req->rq_data  = NULL;
+		req->rq_lparm = 12 + mask_len + 1;
+		req->rq_parm  = param;
+		req->rq_flags = 0;
+		result = smb_add_request(req);
+		if (result < 0) {
+			PARANOIA("error=%d, breaking\n", result);
+			break;
+		}
+
+		if (req->rq_rcls == ERRSRV && req->rq_err == ERRerror) {
+			/* a damn Win95 bug - sometimes it clags if you 
+			   ask it too fast */
+			current->state = TASK_INTERRUPTIBLE;
+			schedule_timeout(HZ/5);
+			continue;
+                }
+
+		if (req->rq_rcls != 0) {
+			result = smb_errno(req);
+			PARANOIA("name=%s, result=%d, rcls=%d, err=%d\n",
+				 mask, result, req->rq_rcls, req->rq_err);
+			break;
+		}
+
+		/* parse out some important return info */
+		if (first != 0) {
+			ff_dir_handle = WVAL(req->rq_parm, 0);
+			ff_searchcount = WVAL(req->rq_parm, 2);
+			ff_eos = WVAL(req->rq_parm, 4);
+			ff_lastname = WVAL(req->rq_parm, 8);
+		} else {
+			ff_searchcount = WVAL(req->rq_parm, 0);
+			ff_eos = WVAL(req->rq_parm, 2);
+			ff_lastname = WVAL(req->rq_parm, 6);
+		}
+
+		if (ff_searchcount == 0)
+			break;
+
+		/* Now we are ready to parse smb directory entries. */
+
+		/* point to the data bytes */
+		p = req->rq_data;
+		for (i = 0; i < ff_searchcount; i++) {
+			/* make sure we stay within the buffer */
+			if (p >= req->rq_data + req->rq_ldata) {
+				printk(KERN_ERR "smb_proc_readdir_long: "
+				       "dirent pointer outside buffer! "
+				       "%p  %d@%p\n",
+				       p, req->rq_ldata, req->rq_data);
+				result = -EIO; /* always a comm. error? */
+				goto out_free;
+			}
+
+			p = smb_decode_long_dirent(server, p, info_level,
+						   &qname, &fattr, name_buf);
+
+			/* ignore . and .. from the server */
+			if (entries_seen == 2 && qname.name[0] == '.') {
+				if (qname.len == 1)
+					continue;
+				if (qname.name[1] == '.' && qname.len == 2)
+					continue;
+			}
+
+			if (!smb_fill_cache(filp, dirent, filldir, ctl, 
+					    &qname, &fattr))
+				;	/* stop reading? */
+			entries_seen++;
+		}
+
+		VERBOSE("received %d entries, eos=%d\n", ff_searchcount,ff_eos);
+
+		/*
+		 * We might need the lastname for continuations.
+		 *
+		 * Note that some servers (win95?) point to the filename and
+		 * others (NT4, Samba using NT1) to the dir entry. We assume
+		 * here that those who do not point to a filename do not need
+		 * this info to continue the listing.
+		 *
+		 * OS/2 needs this and talks infolevel 1.
+		 * NetApps want lastname with infolevel 260.
+		 * win2k want lastname with infolevel 260, and points to
+		 *       the record not to the name.
+		 * Samba+CifsUnixExt doesn't need lastname.
+		 *
+		 * Both are happy if we return the data they point to. So we do.
+		 * (FIXME: above is not true with win2k)
+		 */
+		mask_len = 0;
+		if (info_level != SMB_FIND_FILE_UNIX &&
+		    ff_lastname > 0 && ff_lastname < req->rq_ldata) {
+			lastname = req->rq_data + ff_lastname;
+
+			switch (info_level) {
+			case 260:
+				mask_len = req->rq_ldata - ff_lastname;
+				break;
+			case 1:
+				/* lastname points to a length byte */
+				mask_len = *lastname++;
+				if (ff_lastname + 1 + mask_len > req->rq_ldata)
+					mask_len = req->rq_ldata - ff_lastname - 1;
+				break;
+			}
+
+			/*
+			 * Update the mask string for the next message.
+			 */
+			if (mask_len > 255)
+				mask_len = 255;
+			if (mask_len)
+				strncpy(mask, lastname, mask_len);
+		}
+		mask_len = strnlen(mask, mask_len);
+		VERBOSE("new mask, len=%d@%d of %d, mask=%.*s\n",
+			mask_len, ff_lastname, req->rq_ldata, mask_len, mask);
+
+		first = 0;
+		loop_count = 0;
+	}
+
+out_free:
+	smb_rput(req);
+out_name:
+	kfree(name_buf);
+out:
+	unlock_kernel();
+	return result;
+}
+
+/*
+ * This version uses the trans2 TRANSACT2_FINDFIRST message 
+ * to get the attribute data.
+ *
+ * Bugs Noted:
+ */
+static int
+smb_proc_getattr_ff(struct smb_sb_info *server, struct dentry *dentry,
+			struct smb_fattr *fattr)
+{
+	char *param, *mask;
+	__u16 date, time;
+	int mask_len, result;
+	struct smb_request *req;
+
+	result = -ENOMEM;
+	if (! (req = smb_alloc_request(server, PAGE_SIZE)))
+		goto out;
+	param = req->rq_buffer;
+	mask = param + 12;
+
+	mask_len = smb_encode_path(server, mask, SMB_MAXPATHLEN+1, dentry,NULL);
+	if (mask_len < 0) {
+		result = mask_len;
+		goto out_free;
+	}
+	VERBOSE("name=%s, len=%d\n", mask, mask_len);
+	WSET(param, 0, aSYSTEM | aHIDDEN | aDIR);
+	WSET(param, 2, 1);	/* max count */
+	WSET(param, 4, 1);	/* close after this call */
+	WSET(param, 6, 1);	/* info_level */
+	DSET(param, 8, 0);
+
+	req->rq_trans2_command = TRANSACT2_FINDFIRST;
+	req->rq_ldata = 0;
+	req->rq_data  = NULL;
+	req->rq_lparm = 12 + mask_len;
+	req->rq_parm  = param;
+	req->rq_flags = 0;
+	result = smb_add_request(req);
+	if (result < 0)
+		goto out_free;
+	if (req->rq_rcls != 0) {
+		result = smb_errno(req);
+#ifdef SMBFS_PARANOIA
+		if (result != -ENOENT)
+			PARANOIA("error for %s, rcls=%d, err=%d\n",
+				 mask, req->rq_rcls, req->rq_err);
+#endif
+		goto out_free;
+	}
+	/* Make sure we got enough data ... */
+	result = -EINVAL;
+	if (req->rq_ldata < 22 || WVAL(req->rq_parm, 2) != 1) {
+		PARANOIA("bad result for %s, len=%d, count=%d\n",
+			 mask, req->rq_ldata, WVAL(req->rq_parm, 2));
+		goto out_free;
+	}
+
+	/*
+	 * Decode the response into the fattr ...
+	 */
+	date = WVAL(req->rq_data, 0);
+	time = WVAL(req->rq_data, 2);
+	fattr->f_ctime.tv_sec = date_dos2unix(server, date, time);
+	fattr->f_ctime.tv_nsec = 0;
+
+	date = WVAL(req->rq_data, 4);
+	time = WVAL(req->rq_data, 6);
+	fattr->f_atime.tv_sec = date_dos2unix(server, date, time);
+	fattr->f_atime.tv_nsec = 0;
+
+	date = WVAL(req->rq_data, 8);
+	time = WVAL(req->rq_data, 10);
+	fattr->f_mtime.tv_sec = date_dos2unix(server, date, time);
+	fattr->f_mtime.tv_nsec = 0;
+	VERBOSE("name=%s, date=%x, time=%x, mtime=%ld\n",
+		mask, date, time, fattr->f_mtime);
+	fattr->f_size = DVAL(req->rq_data, 12);
+	/* ULONG allocation size */
+	fattr->attr = WVAL(req->rq_data, 20);
+	result = 0;
+
+out_free:
+	smb_rput(req);
+out:
+	return result;
+}
+
+static int
+smb_proc_getattr_core(struct smb_sb_info *server, struct dentry *dir,
+		      struct smb_fattr *fattr)
+{
+	int result;
+	char *p;
+	struct smb_request *req;
+
+	result = -ENOMEM;
+	if (! (req = smb_alloc_request(server, PAGE_SIZE)))
+		goto out;
+
+	p = smb_setup_header(req, SMBgetatr, 0, 0);
+	result = smb_simple_encode_path(req, &p, dir, NULL);
+	if (result < 0)
+ 		goto out_free;
+	smb_setup_bcc(req, p);
+
+	if ((result = smb_request_ok(req, SMBgetatr, 10, 0)) < 0)
+		goto out_free;
+	fattr->attr    = WVAL(req->rq_header, smb_vwv0);
+	fattr->f_mtime.tv_sec = local2utc(server, DVAL(req->rq_header, smb_vwv1));
+	fattr->f_mtime.tv_nsec = 0;
+	fattr->f_size  = DVAL(req->rq_header, smb_vwv3);
+	fattr->f_ctime = fattr->f_mtime; 
+	fattr->f_atime = fattr->f_mtime; 
+#ifdef SMBFS_DEBUG_TIMESTAMP
+	printk("getattr_core: %s/%s, mtime=%ld\n",
+	       DENTRY_PATH(dir), fattr->f_mtime);
+#endif
+	result = 0;
+
+out_free:
+	smb_rput(req);
+out:
+	return result;
+}
+
+/*
+ * Bugs Noted:
+ * (1) Win 95 swaps the date and time fields in the standard info level.
+ */
+static int
+smb_proc_getattr_trans2(struct smb_sb_info *server, struct dentry *dir,
+			struct smb_request *req, int infolevel)
+{
+	char *p, *param;
+	int result;
+
+	param = req->rq_buffer;
+	WSET(param, 0, infolevel);
+	DSET(param, 2, 0);
+	result = smb_encode_path(server, param+6, SMB_MAXPATHLEN+1, dir, NULL);
+	if (result < 0)
+		goto out;
+	p = param + 6 + result;
+
+	req->rq_trans2_command = TRANSACT2_QPATHINFO;
+	req->rq_ldata = 0;
+	req->rq_data  = NULL;
+	req->rq_lparm = p - param;
+	req->rq_parm  = param;
+	req->rq_flags = 0;
+	result = smb_add_request(req);
+	if (result < 0)
+		goto out;
+	if (req->rq_rcls != 0) {
+		VERBOSE("for %s: result=%d, rcls=%d, err=%d\n",
+			&param[6], result, req->rq_rcls, req->rq_err);
+		result = smb_errno(req);
+		goto out;
+	}
+	result = -ENOENT;
+	if (req->rq_ldata < 22) {
+		PARANOIA("not enough data for %s, len=%d\n",
+			 &param[6], req->rq_ldata);
+		goto out;
+	}
+
+	result = 0;
+out:
+	return result;
+}
+
+static int
+smb_proc_getattr_trans2_std(struct smb_sb_info *server, struct dentry *dir,
+			    struct smb_fattr *attr)
+{
+	u16 date, time;
+	int off_date = 0, off_time = 2;
+	int result;
+	struct smb_request *req;
+
+	result = -ENOMEM;
+	if (! (req = smb_alloc_request(server, PAGE_SIZE)))
+		goto out;
+
+	result = smb_proc_getattr_trans2(server, dir, req, SMB_INFO_STANDARD);
+	if (result < 0)
+		goto out_free;
+
+	/*
+	 * Kludge alert: Win 95 swaps the date and time field,
+	 * contrary to the CIFS docs and Win NT practice.
+	 */
+	if (server->mnt->flags & SMB_MOUNT_WIN95) {
+		off_date = 2;
+		off_time = 0;
+	}
+	date = WVAL(req->rq_data, off_date);
+	time = WVAL(req->rq_data, off_time);
+	attr->f_ctime.tv_sec = date_dos2unix(server, date, time);
+	attr->f_ctime.tv_nsec = 0;
+
+	date = WVAL(req->rq_data, 4 + off_date);
+	time = WVAL(req->rq_data, 4 + off_time);
+	attr->f_atime.tv_sec = date_dos2unix(server, date, time);
+	attr->f_atime.tv_nsec = 0;
+
+	date = WVAL(req->rq_data, 8 + off_date);
+	time = WVAL(req->rq_data, 8 + off_time);
+	attr->f_mtime.tv_sec = date_dos2unix(server, date, time);
+	attr->f_mtime.tv_nsec = 0;
+#ifdef SMBFS_DEBUG_TIMESTAMP
+	printk(KERN_DEBUG "getattr_trans2: %s/%s, date=%x, time=%x, mtime=%ld\n",
+	       DENTRY_PATH(dir), date, time, attr->f_mtime);
+#endif
+	attr->f_size = DVAL(req->rq_data, 12);
+	attr->attr = WVAL(req->rq_data, 20);
+
+out_free:
+	smb_rput(req);
+out:
+	return result;
+}
+
+static int
+smb_proc_getattr_trans2_all(struct smb_sb_info *server, struct dentry *dir,
+			    struct smb_fattr *attr)
+{
+	struct smb_request *req;
+	int result;
+
+	result = -ENOMEM;
+	if (! (req = smb_alloc_request(server, PAGE_SIZE)))
+		goto out;
+
+	result = smb_proc_getattr_trans2(server, dir, req,
+					 SMB_QUERY_FILE_ALL_INFO);
+	if (result < 0)
+		goto out_free;
+
+	attr->f_ctime = smb_ntutc2unixutc(LVAL(req->rq_data, 0));
+	attr->f_atime = smb_ntutc2unixutc(LVAL(req->rq_data, 8));
+	attr->f_mtime = smb_ntutc2unixutc(LVAL(req->rq_data, 16));
+	/* change (24) */
+	attr->attr = WVAL(req->rq_data, 32);
+	/* pad? (34) */
+	/* allocated size (40) */
+	attr->f_size = LVAL(req->rq_data, 48);
+
+out_free:
+	smb_rput(req);
+out:
+	return result;
+}
+
+static int
+smb_proc_getattr_unix(struct smb_sb_info *server, struct dentry *dir,
+		      struct smb_fattr *attr)
+{
+	struct smb_request *req;
+	int result;
+
+	result = -ENOMEM;
+	if (! (req = smb_alloc_request(server, PAGE_SIZE)))
+		goto out;
+
+	result = smb_proc_getattr_trans2(server, dir, req,
+					 SMB_QUERY_FILE_UNIX_BASIC);
+	if (result < 0)
+		goto out_free;
+
+	smb_decode_unix_basic(attr, server, req->rq_data);
+
+out_free:
+	smb_rput(req);
+out:
+	return result;
+}
+
+static int
+smb_proc_getattr_95(struct smb_sb_info *server, struct dentry *dir,
+		    struct smb_fattr *attr)
+{
+	struct inode *inode = dir->d_inode;
+	int result;
+
+	/* FIXME: why not use the "all" version? */
+	result = smb_proc_getattr_trans2_std(server, dir, attr);
+	if (result < 0)
+		goto out;
+
+	/*
+	 * None of the getattr versions here can make win9x return the right
+	 * filesize if there are changes made to an open file.
+	 * A seek-to-end does return the right size, but we only need to do
+	 * that on files we have written.
+	 */
+	if (inode && SMB_I(inode)->flags & SMB_F_LOCALWRITE &&
+	    smb_is_open(inode))
+	{
+		__u16 fileid = SMB_I(inode)->fileid;
+		attr->f_size = smb_proc_seek(server, fileid, 2, 0);
+	}
+
+out:
+	return result;
+}
+
+static int
+smb_proc_ops_wait(struct smb_sb_info *server)
+{
+	int result;
+
+	result = wait_event_interruptible_timeout(server->conn_wq,
+				server->conn_complete, 30*HZ);
+
+	if (!result || signal_pending(current))
+		return -EIO;
+
+	return 0;
+}
+
+static int
+smb_proc_getattr_null(struct smb_sb_info *server, struct dentry *dir,
+			  struct smb_fattr *fattr)
+{
+	int result;
+
+	if (smb_proc_ops_wait(server) < 0)
+		return -EIO;
+
+	smb_init_dirent(server, fattr);
+	result = server->ops->getattr(server, dir, fattr);
+	smb_finish_dirent(server, fattr);
+
+	return result;
+}
+
+static int
+smb_proc_readdir_null(struct file *filp, void *dirent, filldir_t filldir,
+		      struct smb_cache_control *ctl)
+{
+	struct smb_sb_info *server = server_from_dentry(filp->f_dentry);
+
+	if (smb_proc_ops_wait(server) < 0)
+		return -EIO;
+
+	return server->ops->readdir(filp, dirent, filldir, ctl);
+}
+
+int
+smb_proc_getattr(struct dentry *dir, struct smb_fattr *fattr)
+{
+	struct smb_sb_info *server = server_from_dentry(dir);
+	int result;
+
+	smb_init_dirent(server, fattr);
+	result = server->ops->getattr(server, dir, fattr);
+	smb_finish_dirent(server, fattr);
+
+	return result;
+}
+
+
+/*
+ * Because of bugs in the core protocol, we use this only to set
+ * attributes. See smb_proc_settime() below for timestamp handling.
+ *
+ * Bugs Noted:
+ * (1) If mtime is non-zero, both Win 3.1 and Win 95 fail
+ * with an undocumented error (ERRDOS code 50). Setting
+ * mtime to 0 allows the attributes to be set.
+ * (2) The extra parameters following the name string aren't
+ * in the CIFS docs, but seem to be necessary for operation.
+ */
+static int
+smb_proc_setattr_core(struct smb_sb_info *server, struct dentry *dentry,
+		      __u16 attr)
+{
+	char *p;
+	int result;
+	struct smb_request *req;
+
+	result = -ENOMEM;
+	if (! (req = smb_alloc_request(server, PAGE_SIZE)))
+		goto out;
+
+	p = smb_setup_header(req, SMBsetatr, 8, 0);
+	WSET(req->rq_header, smb_vwv0, attr);
+	DSET(req->rq_header, smb_vwv1, 0); /* mtime */
+	WSET(req->rq_header, smb_vwv3, 0); /* reserved values */
+	WSET(req->rq_header, smb_vwv4, 0);
+	WSET(req->rq_header, smb_vwv5, 0);
+	WSET(req->rq_header, smb_vwv6, 0);
+	WSET(req->rq_header, smb_vwv7, 0);
+	result = smb_simple_encode_path(req, &p, dentry, NULL);
+	if (result < 0)
+		goto out_free;
+	if (p + 2 > (char *)req->rq_buffer + req->rq_bufsize) {
+		result = -ENAMETOOLONG;
+		goto out_free;
+	}
+	*p++ = 4;
+	*p++ = 0;
+	smb_setup_bcc(req, p);
+
+	result = smb_request_ok(req, SMBsetatr, 0, 0);
+	if (result < 0)
+		goto out_free;
+	result = 0;
+
+out_free:
+	smb_rput(req);
+out:
+	return result;
+}
+
+/*
+ * Because of bugs in the trans2 setattr messages, we must set
+ * attributes and timestamps separately. The core SMBsetatr
+ * message seems to be the only reliable way to set attributes.
+ */
+int
+smb_proc_setattr(struct dentry *dir, struct smb_fattr *fattr)
+{
+	struct smb_sb_info *server = server_from_dentry(dir);
+	int result;
+
+	VERBOSE("setting %s/%s, open=%d\n", 
+		DENTRY_PATH(dir), smb_is_open(dir->d_inode));
+	result = smb_proc_setattr_core(server, dir, fattr->attr);
+	return result;
+}
+
+/*
+ * Sets the timestamps for an file open with write permissions.
+ */
+static int
+smb_proc_setattr_ext(struct smb_sb_info *server,
+		      struct inode *inode, struct smb_fattr *fattr)
+{
+	__u16 date, time;
+	int result;
+	struct smb_request *req;
+
+	result = -ENOMEM;
+	if (! (req = smb_alloc_request(server, 0)))
+		goto out;
+
+	smb_setup_header(req, SMBsetattrE, 7, 0);
+	WSET(req->rq_header, smb_vwv0, SMB_I(inode)->fileid);
+	/* We don't change the creation time */
+	WSET(req->rq_header, smb_vwv1, 0);
+	WSET(req->rq_header, smb_vwv2, 0);
+	date_unix2dos(server, fattr->f_atime.tv_sec, &date, &time);
+	WSET(req->rq_header, smb_vwv3, date);
+	WSET(req->rq_header, smb_vwv4, time);
+	date_unix2dos(server, fattr->f_mtime.tv_sec, &date, &time);
+	WSET(req->rq_header, smb_vwv5, date);
+	WSET(req->rq_header, smb_vwv6, time);
+#ifdef SMBFS_DEBUG_TIMESTAMP
+	printk(KERN_DEBUG "smb_proc_setattr_ext: date=%d, time=%d, mtime=%ld\n",
+	       date, time, fattr->f_mtime);
+#endif
+
+	req->rq_flags |= SMB_REQ_NORETRY;
+	result = smb_request_ok(req, SMBsetattrE, 0, 0);
+	if (result < 0)
+		goto out_free;
+	result = 0;
+out_free:
+	smb_rput(req);
+out:
+	return result;
+}
+
+/*
+ * Bugs Noted:
+ * (1) The TRANSACT2_SETPATHINFO message under Win NT 4.0 doesn't
+ * set the file's attribute flags.
+ */
+static int
+smb_proc_setattr_trans2(struct smb_sb_info *server,
+			struct dentry *dir, struct smb_fattr *fattr)
+{
+	__u16 date, time;
+	char *p, *param;
+	int result;
+	char data[26];
+	struct smb_request *req;
+
+	result = -ENOMEM;
+	if (! (req = smb_alloc_request(server, PAGE_SIZE)))
+		goto out;
+	param = req->rq_buffer;
+
+	WSET(param, 0, 1);	/* Info level SMB_INFO_STANDARD */
+	DSET(param, 2, 0);
+	result = smb_encode_path(server, param+6, SMB_MAXPATHLEN+1, dir, NULL);
+	if (result < 0)
+		goto out_free;
+	p = param + 6 + result;
+
+	WSET(data, 0, 0); /* creation time */
+	WSET(data, 2, 0);
+	date_unix2dos(server, fattr->f_atime.tv_sec, &date, &time);
+	WSET(data, 4, date);
+	WSET(data, 6, time);
+	date_unix2dos(server, fattr->f_mtime.tv_sec, &date, &time);
+	WSET(data, 8, date);
+	WSET(data, 10, time);
+#ifdef SMBFS_DEBUG_TIMESTAMP
+	printk(KERN_DEBUG "setattr_trans2: %s/%s, date=%x, time=%x, mtime=%ld\n", 
+	       DENTRY_PATH(dir), date, time, fattr->f_mtime);
+#endif
+	DSET(data, 12, 0); /* size */
+	DSET(data, 16, 0); /* blksize */
+	WSET(data, 20, 0); /* attr */
+	DSET(data, 22, 0); /* ULONG EA size */
+
+	req->rq_trans2_command = TRANSACT2_SETPATHINFO;
+	req->rq_ldata = 26;
+	req->rq_data  = data;
+	req->rq_lparm = p - param;
+	req->rq_parm  = param;
+	req->rq_flags = 0;
+	result = smb_add_request(req);
+	if (result < 0)
+		goto out_free;
+	result = 0;
+	if (req->rq_rcls != 0)
+		result = smb_errno(req);
+
+out_free:
+	smb_rput(req);
+out:
+	return result;
+}
+
+/*
+ * ATTR_MODE      0x001
+ * ATTR_UID       0x002
+ * ATTR_GID       0x004
+ * ATTR_SIZE      0x008
+ * ATTR_ATIME     0x010
+ * ATTR_MTIME     0x020
+ * ATTR_CTIME     0x040
+ * ATTR_ATIME_SET 0x080
+ * ATTR_MTIME_SET 0x100
+ * ATTR_FORCE     0x200	
+ * ATTR_ATTR_FLAG 0x400
+ *
+ * major/minor should only be set by mknod.
+ */
+int
+smb_proc_setattr_unix(struct dentry *d, struct iattr *attr,
+		      unsigned int major, unsigned int minor)
+{
+	struct smb_sb_info *server = server_from_dentry(d);
+	u64 nttime;
+	char *p, *param;
+	int result;
+	char data[100];
+	struct smb_request *req;
+
+	result = -ENOMEM;
+	if (! (req = smb_alloc_request(server, PAGE_SIZE)))
+		goto out;
+	param = req->rq_buffer;
+
+	DEBUG1("valid flags = 0x%04x\n", attr->ia_valid);
+
+	WSET(param, 0, SMB_SET_FILE_UNIX_BASIC);
+	DSET(param, 2, 0);
+	result = smb_encode_path(server, param+6, SMB_MAXPATHLEN+1, d, NULL);
+	if (result < 0)
+		goto out_free;
+	p = param + 6 + result;
+
+	/* 0 L file size in bytes */
+	/* 8 L file size on disk in bytes (block count) */
+	/* 40 L uid */
+	/* 48 L gid */
+	/* 56 W file type enum */
+	/* 60 L devmajor */
+	/* 68 L devminor */
+	/* 76 L unique ID (inode) */
+	/* 84 L permissions */
+	/* 92 L link count */
+	LSET(data, 0, SMB_SIZE_NO_CHANGE);
+	LSET(data, 8, SMB_SIZE_NO_CHANGE);
+	LSET(data, 16, SMB_TIME_NO_CHANGE);
+	LSET(data, 24, SMB_TIME_NO_CHANGE);
+	LSET(data, 32, SMB_TIME_NO_CHANGE);
+	LSET(data, 40, SMB_UID_NO_CHANGE);
+	LSET(data, 48, SMB_GID_NO_CHANGE);
+	LSET(data, 56, smb_filetype_from_mode(attr->ia_mode));
+	LSET(data, 60, major);
+	LSET(data, 68, minor);
+	LSET(data, 76, 0);
+	LSET(data, 84, SMB_MODE_NO_CHANGE);
+	LSET(data, 92, 0);
+
+	if (attr->ia_valid & ATTR_SIZE) {
+		LSET(data, 0, attr->ia_size);
+		LSET(data, 8, 0); /* can't set anyway */
+	}
+
+	/*
+	 * FIXME: check the conversion function it the correct one
+	 *
+	 * we can't set ctime but we might as well pass this to the server
+	 * and let it ignore it.
+	 */
+	if (attr->ia_valid & ATTR_CTIME) {
+		nttime = smb_unixutc2ntutc(attr->ia_ctime);
+		LSET(data, 16, nttime);
+	}
+	if (attr->ia_valid & ATTR_ATIME) {
+		nttime = smb_unixutc2ntutc(attr->ia_atime);
+		LSET(data, 24, nttime);
+	}
+	if (attr->ia_valid & ATTR_MTIME) {
+		nttime = smb_unixutc2ntutc(attr->ia_mtime);
+		LSET(data, 32, nttime);
+	}
+	
+	if (attr->ia_valid & ATTR_UID) {
+		LSET(data, 40, attr->ia_uid);
+	}
+	if (attr->ia_valid & ATTR_GID) {
+		LSET(data, 48, attr->ia_gid); 
+	}
+	
+	if (attr->ia_valid & ATTR_MODE) {
+		LSET(data, 84, attr->ia_mode);
+	}
+
+	req->rq_trans2_command = TRANSACT2_SETPATHINFO;
+	req->rq_ldata = 100;
+	req->rq_data  = data;
+	req->rq_lparm = p - param;
+	req->rq_parm  = param;
+	req->rq_flags = 0;
+	result = smb_add_request(req);
+
+out_free:
+	smb_rput(req);
+out:
+	return result;
+}
+
+
+/*
+ * Set the modify and access timestamps for a file.
+ *
+ * Incredibly enough, in all of SMB there is no message to allow
+ * setting both attributes and timestamps at once. 
+ *
+ * Bugs Noted:
+ * (1) Win 95 doesn't support the TRANSACT2_SETFILEINFO message 
+ * with info level 1 (INFO_STANDARD).
+ * (2) Win 95 seems not to support setting directory timestamps.
+ * (3) Under the core protocol apparently the only way to set the
+ * timestamp is to open and close the file.
+ */
+int
+smb_proc_settime(struct dentry *dentry, struct smb_fattr *fattr)
+{
+	struct smb_sb_info *server = server_from_dentry(dentry);
+	struct inode *inode = dentry->d_inode;
+	int result;
+
+	VERBOSE("setting %s/%s, open=%d\n",
+		DENTRY_PATH(dentry), smb_is_open(inode));
+
+	/* setting the time on a Win95 server fails (tridge) */
+	if (server->opt.protocol >= SMB_PROTOCOL_LANMAN2 && 
+	    !(server->mnt->flags & SMB_MOUNT_WIN95)) {
+		if (smb_is_open(inode) && SMB_I(inode)->access != SMB_O_RDONLY)
+			result = smb_proc_setattr_ext(server, inode, fattr);
+		else
+			result = smb_proc_setattr_trans2(server, dentry, fattr);
+	} else {
+		/*
+		 * Fail silently on directories ... timestamp can't be set?
+		 */
+		result = 0;
+		if (S_ISREG(inode->i_mode)) {
+			/*
+			 * Set the mtime by opening and closing the file.
+			 * Note that the file is opened read-only, but this
+			 * still allows us to set the date (tridge)
+			 */
+			result = -EACCES;
+			if (!smb_is_open(inode))
+				smb_proc_open(server, dentry, SMB_O_RDONLY);
+			if (smb_is_open(inode)) {
+				inode->i_mtime = fattr->f_mtime;
+				result = smb_proc_close_inode(server, inode);
+			}
+		}
+	}
+
+	return result;
+}
+
+int
+smb_proc_dskattr(struct super_block *sb, struct kstatfs *attr)
+{
+	struct smb_sb_info *server = SMB_SB(sb);
+	int result;
+	char *p;
+	long unit;
+	struct smb_request *req;
+
+	result = -ENOMEM;
+	if (! (req = smb_alloc_request(server, 0)))
+		goto out;
+
+	smb_setup_header(req, SMBdskattr, 0, 0);
+	if ((result = smb_request_ok(req, SMBdskattr, 5, 0)) < 0)
+		goto out_free;
+	p = SMB_VWV(req->rq_header);
+	unit = (WVAL(p, 2) * WVAL(p, 4)) >> SMB_ST_BLKSHIFT;
+	attr->f_blocks = WVAL(p, 0) * unit;
+	attr->f_bsize  = SMB_ST_BLKSIZE;
+	attr->f_bavail = attr->f_bfree = WVAL(p, 6) * unit;
+	result = 0;
+
+out_free:
+	smb_rput(req);
+out:
+	return result;
+}
+
+int
+smb_proc_read_link(struct smb_sb_info *server, struct dentry *d,
+		   char *buffer, int len)
+{
+	char *p, *param;
+	int result;
+	struct smb_request *req;
+
+	DEBUG1("readlink of %s/%s\n", DENTRY_PATH(d));
+
+	result = -ENOMEM;
+	if (! (req = smb_alloc_request(server, PAGE_SIZE)))
+		goto out;
+	param = req->rq_buffer;
+
+	WSET(param, 0, SMB_QUERY_FILE_UNIX_LINK);
+	DSET(param, 2, 0);
+	result = smb_encode_path(server, param+6, SMB_MAXPATHLEN+1, d, NULL);
+	if (result < 0)
+		goto out_free;
+	p = param + 6 + result;
+
+	req->rq_trans2_command = TRANSACT2_QPATHINFO;
+	req->rq_ldata = 0;
+	req->rq_data  = NULL;
+	req->rq_lparm = p - param;
+	req->rq_parm  = param;
+	req->rq_flags = 0;
+	result = smb_add_request(req);
+	if (result < 0)
+		goto out_free;
+	DEBUG1("for %s: result=%d, rcls=%d, err=%d\n",
+		&param[6], result, req->rq_rcls, req->rq_err);
+
+	/* copy data up to the \0 or buffer length */
+	result = len;
+	if (req->rq_ldata < len)
+		result = req->rq_ldata;
+	strncpy(buffer, req->rq_data, result);
+
+out_free:
+	smb_rput(req);
+out:
+	return result;
+}
+
+
+/*
+ * Create a symlink object called dentry which points to oldpath.
+ * Samba does not permit dangling links but returns a suitable error message.
+ */
+int
+smb_proc_symlink(struct smb_sb_info *server, struct dentry *d,
+		 const char *oldpath)
+{
+	char *p, *param;
+	int result;
+	struct smb_request *req;
+
+	result = -ENOMEM;
+	if (! (req = smb_alloc_request(server, PAGE_SIZE)))
+		goto out;
+	param = req->rq_buffer;
+
+	WSET(param, 0, SMB_SET_FILE_UNIX_LINK);
+	DSET(param, 2, 0);
+	result = smb_encode_path(server, param + 6, SMB_MAXPATHLEN+1, d, NULL);
+	if (result < 0)
+		goto out_free;
+	p = param + 6 + result;
+
+	req->rq_trans2_command = TRANSACT2_SETPATHINFO;
+	req->rq_ldata = strlen(oldpath) + 1;
+	req->rq_data  = (char *) oldpath;
+	req->rq_lparm = p - param;
+	req->rq_parm  = param;
+	req->rq_flags = 0;
+	result = smb_add_request(req);
+	if (result < 0)
+		goto out_free;
+
+	DEBUG1("for %s: result=%d, rcls=%d, err=%d\n",
+		&param[6], result, req->rq_rcls, req->rq_err);
+	result = 0;
+
+out_free:
+	smb_rput(req);
+out:
+	return result;
+}
+
+/*
+ * Create a hard link object called new_dentry which points to dentry.
+ */
+int
+smb_proc_link(struct smb_sb_info *server, struct dentry *dentry,
+	      struct dentry *new_dentry)
+{
+	char *p, *param;
+	int result;
+	struct smb_request *req;
+
+	result = -ENOMEM;
+	if (! (req = smb_alloc_request(server, PAGE_SIZE)))
+		goto out;
+	param = req->rq_buffer;
+
+	WSET(param, 0, SMB_SET_FILE_UNIX_HLINK);
+	DSET(param, 2, 0);
+	result = smb_encode_path(server, param + 6, SMB_MAXPATHLEN+1,
+				 new_dentry, NULL);
+	if (result < 0)
+		goto out_free;
+	p = param + 6 + result;
+
+	/* Grr, pointless separation of parameters and data ... */
+	req->rq_data = p;
+	req->rq_ldata = smb_encode_path(server, p, SMB_MAXPATHLEN+1,
+					dentry, NULL);
+
+	req->rq_trans2_command = TRANSACT2_SETPATHINFO;
+	req->rq_lparm = p - param;
+	req->rq_parm  = param;
+	req->rq_flags = 0;
+	result = smb_add_request(req);
+	if (result < 0)
+		goto out_free;
+
+	DEBUG1("for %s: result=%d, rcls=%d, err=%d\n",
+	       &param[6], result, req->rq_rcls, req->rq_err);
+	result = 0;
+
+out_free:
+	smb_rput(req);
+out:
+	return result;
+}
+
+static int
+smb_proc_query_cifsunix(struct smb_sb_info *server)
+{
+	int result;
+	int major, minor;
+	u64 caps;
+	char param[2];
+	struct smb_request *req;
+
+	result = -ENOMEM;
+	if (! (req = smb_alloc_request(server, 100)))
+		goto out;
+
+	WSET(param, 0, SMB_QUERY_CIFS_UNIX_INFO);
+
+	req->rq_trans2_command = TRANSACT2_QFSINFO;
+	req->rq_ldata = 0;
+	req->rq_data  = NULL;
+	req->rq_lparm = 2;
+	req->rq_parm  = param;
+	req->rq_flags = 0;
+	result = smb_add_request(req);
+	if (result < 0)
+		goto out_free;
+
+	if (req->rq_ldata < 12) {
+		PARANOIA("Not enough data\n");
+		goto out_free;
+	}
+	major = WVAL(req->rq_data, 0);
+	minor = WVAL(req->rq_data, 2);
+
+	DEBUG1("Server implements CIFS Extensions for UNIX systems v%d.%d\n",
+	       major, minor);
+	/* FIXME: verify that we are ok with this major/minor? */
+
+	caps = LVAL(req->rq_data, 4);
+	DEBUG1("Server capabilities 0x%016llx\n", caps);
+
+out_free:
+	smb_rput(req);
+out:
+	return result;
+}
+
+
+static void
+install_ops(struct smb_ops *dst, struct smb_ops *src)
+{
+	memcpy(dst, src, sizeof(void *) * SMB_OPS_NUM_STATIC);
+}
+
+/* < LANMAN2 */
+static struct smb_ops smb_ops_core =
+{
+	.read		= smb_proc_read,
+	.write		= smb_proc_write,
+	.readdir	= smb_proc_readdir_short,
+	.getattr	= smb_proc_getattr_core,
+	.truncate	= smb_proc_trunc32,
+};
+
+/* LANMAN2, OS/2, others? */
+static struct smb_ops smb_ops_os2 =
+{
+	.read		= smb_proc_read,
+	.write		= smb_proc_write,
+	.readdir	= smb_proc_readdir_long,
+	.getattr	= smb_proc_getattr_trans2_std,
+	.truncate	= smb_proc_trunc32,
+};
+
+/* Win95, and possibly some NetApp versions too */
+static struct smb_ops smb_ops_win95 =
+{
+	.read		= smb_proc_read,    /* does not support 12word readX */
+	.write		= smb_proc_write,
+	.readdir	= smb_proc_readdir_long,
+	.getattr	= smb_proc_getattr_95,
+	.truncate	= smb_proc_trunc95,
+};
+
+/* Samba, NT4 and NT5 */
+static struct smb_ops smb_ops_winNT =
+{
+	.read		= smb_proc_readX,
+	.write		= smb_proc_writeX,
+	.readdir	= smb_proc_readdir_long,
+	.getattr	= smb_proc_getattr_trans2_all,
+	.truncate	= smb_proc_trunc64,
+};
+
+/* Samba w/ unix extensions. Others? */
+static struct smb_ops smb_ops_unix =
+{
+	.read		= smb_proc_readX,
+	.write		= smb_proc_writeX,
+	.readdir	= smb_proc_readdir_long,
+	.getattr	= smb_proc_getattr_unix,
+	/* FIXME: core/ext/time setattr needs to be cleaned up! */
+	/* .setattr	= smb_proc_setattr_unix, */
+	.truncate	= smb_proc_trunc64,
+};
+
+/* Place holder until real ops are in place */
+static struct smb_ops smb_ops_null =
+{
+	.readdir	= smb_proc_readdir_null,
+	.getattr	= smb_proc_getattr_null,
+};
+
+void smb_install_null_ops(struct smb_ops *ops)
+{
+	install_ops(ops, &smb_ops_null);
+}