[deliverable/linux.git] / fs / cifs / cifs_debug.c

/*
 *   fs/cifs_debug.c
 *
 *   Copyright (C) International Business Machines  Corp., 2000,2005
 *
 *   Modified by Steve French (sfrench@us.ibm.com)
 *
 *   This program is free software;  you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or 
 *   (at your option) any later version.
 * 
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
 *   the GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program;  if not, write to the Free Software 
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */
#include <linux/fs.h>
#include <linux/string.h>
#include <linux/ctype.h>
#include <linux/module.h>
#include <linux/proc_fs.h>
#include <asm/uaccess.h>
#include "cifspdu.h"
#include "cifsglob.h"
#include "cifsproto.h"
#include "cifs_debug.h"
#include "cifsfs.h"

void
cifs_dump_mem(char *label, void *data, int length)
{
	int i, j;
	int *intptr = data;
	char *charptr = data;
	char buf[10], line[80];

	printk(KERN_DEBUG "%s: dump of %d bytes of data at 0x%p\n\n", 
		label, length, data);
	for (i = 0; i < length; i += 16) {
		line[0] = 0;
		for (j = 0; (j < 4) && (i + j * 4 < length); j++) {
			sprintf(buf, " %08x", intptr[i / 4 + j]);
			strcat(line, buf);
		}
		buf[0] = ' ';
		buf[2] = 0;
		for (j = 0; (j < 16) && (i + j < length); j++) {
			buf[1] = isprint(charptr[i + j]) ? charptr[i + j] : '.';
			strcat(line, buf);
		}
		printk(KERN_DEBUG "%s\n", line);
	}
}

#ifdef CONFIG_PROC_FS
static int
cifs_debug_data_read(char *buf, char **beginBuffer, off_t offset,
		     int count, int *eof, void *data)
{
	struct list_head *tmp;
	struct list_head *tmp1;
	struct mid_q_entry * mid_entry;
	struct cifsSesInfo *ses;
	struct cifsTconInfo *tcon;
	int i;
	int length = 0;
	char * original_buf = buf;

	*beginBuffer = buf + offset;

	
	length =
	    sprintf(buf,
		    "Display Internal CIFS Data Structures for Debugging\n"
		    "---------------------------------------------------\n");
	buf += length;
	length = sprintf(buf,"CIFS Version %s\n",CIFS_VERSION);
	buf += length;
	length = sprintf(buf, "Servers:");
	buf += length;

	i = 0;
	read_lock(&GlobalSMBSeslock);
	list_for_each(tmp, &GlobalSMBSessionList) {
		i++;
		ses = list_entry(tmp, struct cifsSesInfo, cifsSessionList);
		if((ses->serverDomain == NULL) || (ses->serverOS == NULL) ||
		   (ses->serverNOS == NULL)) {
			buf += sprintf("\nentry for %s not fully displayed\n\t",
					ses->serverName);
			
		} else {
			length =
			    sprintf(buf,
				    "\n%d) Name: %s  Domain: %s Mounts: %d ServerOS: %s  \n\tServerNOS: %s\tCapabilities: 0x%x\n\tSMB session status: %d\t",
				i, ses->serverName, ses->serverDomain,
				atomic_read(&ses->inUse),
				ses->serverOS, ses->serverNOS,
				ses->capabilities,ses->status);
			buf += length;
		}
		if(ses->server) {
			buf += sprintf(buf, "TCP status: %d\n\tLocal Users To Server: %d SecMode: 0x%x Req Active: %d",
				ses->server->tcpStatus,
				atomic_read(&ses->server->socketUseCount),
				ses->server->secMode,
				atomic_read(&ses->server->inFlight));
			
			length = sprintf(buf, "\nMIDs:\n");
			buf += length;

			spin_lock(&GlobalMid_Lock);
			list_for_each(tmp1, &ses->server->pending_mid_q) {
				mid_entry = list_entry(tmp1, struct
					mid_q_entry,
					qhead);
				if(mid_entry) {
					length = sprintf(buf,"State: %d com: %d pid: %d tsk: %p mid %d\n",
						mid_entry->midState,
						(int)mid_entry->command,
						mid_entry->pid,
						mid_entry->tsk,
						mid_entry->mid);
					buf += length;
				}
			}
			spin_unlock(&GlobalMid_Lock); 
		}

	}
	read_unlock(&GlobalSMBSeslock);
	sprintf(buf, "\n");
	buf++;

	length = sprintf(buf, "Shares:");
	buf += length;

	i = 0;
	read_lock(&GlobalSMBSeslock);
	list_for_each(tmp, &GlobalTreeConnectionList) {
		__u32 dev_type;
		i++;
		tcon = list_entry(tmp, struct cifsTconInfo, cifsConnectionList);
		dev_type = le32_to_cpu(tcon->fsDevInfo.DeviceType);
		length =
		    sprintf(buf,
			    "\n%d) %s Uses: %d Type: %s Characteristics: 0x%x Attributes: 0x%x\nPathComponentMax: %d Status: %d",
			    i, tcon->treeName,
			    atomic_read(&tcon->useCount),
			    tcon->nativeFileSystem,
			    le32_to_cpu(tcon->fsDevInfo.DeviceCharacteristics),
			    le32_to_cpu(tcon->fsAttrInfo.Attributes),
			    le32_to_cpu(tcon->fsAttrInfo.MaxPathNameComponentLength),
			    tcon->tidStatus);
		buf += length;        
		if (dev_type == FILE_DEVICE_DISK)
			length = sprintf(buf, " type: DISK ");
		else if (dev_type == FILE_DEVICE_CD_ROM)
			length = sprintf(buf, " type: CDROM ");
		else
			length =
			    sprintf(buf, " type: %d ", dev_type);
		buf += length;
		if(tcon->tidStatus == CifsNeedReconnect) {
			buf += sprintf(buf, "\tDISCONNECTED ");
			length += 14;
		}
	}
	read_unlock(&GlobalSMBSeslock);

	length = sprintf(buf, "\n");
	buf += length;

	/* BB add code to dump additional info such as TCP session info now */
	/* Now calculate total size of returned data */
	length = buf - original_buf;

	if(offset + count >= length)
		*eof = 1;
	if(length < offset) {
		*eof = 1;
		return 0;
	} else {
		length = length - offset;
	}
	if (length > count)
		length = count;

	return length;
}

#ifdef CONFIG_CIFS_STATS
static int
cifs_stats_read(char *buf, char **beginBuffer, off_t offset,
		  int count, int *eof, void *data)
{
	int item_length,i,length;
	struct list_head *tmp;
	struct cifsTconInfo *tcon;

	*beginBuffer = buf + offset;

	length = sprintf(buf,
			"Resources in use\nCIFS Session: %d\n",
			sesInfoAllocCount.counter);
	buf += length;
	item_length = 
		sprintf(buf,"Share (unique mount targets): %d\n",
			tconInfoAllocCount.counter);
	length += item_length;
	buf += item_length;      
	item_length = 
		sprintf(buf,"SMB Request/Response Buffer: %d Pool size: %d\n",
			bufAllocCount.counter,
			cifs_min_rcv + tcpSesAllocCount.counter);
	length += item_length;
	buf += item_length;
	item_length = 
		sprintf(buf,"SMB Small Req/Resp Buffer: %d Pool size: %d\n",
			smBufAllocCount.counter,cifs_min_small);
	length += item_length;
	buf += item_length;
	item_length = 
		sprintf(buf,"Operations (MIDs): %d\n",
			midCount.counter);
	length += item_length;
	buf += item_length;
	item_length = sprintf(buf,
		"\n%d session %d share reconnects\n",
		tcpSesReconnectCount.counter,tconInfoReconnectCount.counter);
	length += item_length;
	buf += item_length;

	item_length = sprintf(buf,
		"Total vfs operations: %d maximum at one time: %d\n",
		GlobalCurrentXid,GlobalMaxActiveXid);
	length += item_length;
	buf += item_length;

	i = 0;
	read_lock(&GlobalSMBSeslock);
	list_for_each(tmp, &GlobalTreeConnectionList) {
		i++;
		tcon = list_entry(tmp, struct cifsTconInfo, cifsConnectionList);
		item_length = sprintf(buf,"\n%d) %s",i, tcon->treeName);
		buf += item_length;
		length += item_length;
		if(tcon->tidStatus == CifsNeedReconnect) {
			buf += sprintf(buf, "\tDISCONNECTED ");
			length += 14;
		}
		item_length = sprintf(buf, "\nSMBs: %d Oplock Breaks: %d",
			atomic_read(&tcon->num_smbs_sent),
			atomic_read(&tcon->num_oplock_brks));
		buf += item_length;
		length += item_length;
		item_length = sprintf(buf, "\nReads: %d Bytes %lld",
			atomic_read(&tcon->num_reads),
			(long long)(tcon->bytes_read));
		buf += item_length;
		length += item_length;
		item_length = sprintf(buf, "\nWrites: %d Bytes: %lld",
			atomic_read(&tcon->num_writes),
			(long long)(tcon->bytes_written));
                buf += item_length;
                length += item_length;
                item_length = sprintf(buf, 
			"\nLocks: %d HardLinks: %d Symlinks: %d",
                        atomic_read(&tcon->num_locks),
			atomic_read(&tcon->num_hardlinks),
			atomic_read(&tcon->num_symlinks));
                buf += item_length;
                length += item_length;

		item_length = sprintf(buf, "\nOpens: %d Closes: %d Deletes: %d",
			atomic_read(&tcon->num_opens),
			atomic_read(&tcon->num_closes),
			atomic_read(&tcon->num_deletes));
		buf += item_length;
		length += item_length;
		item_length = sprintf(buf, "\nMkdirs: %d Rmdirs: %d",
			atomic_read(&tcon->num_mkdirs),
			atomic_read(&tcon->num_rmdirs));
		buf += item_length;
		length += item_length;
		item_length = sprintf(buf, "\nRenames: %d T2 Renames %d",
			atomic_read(&tcon->num_renames),
			atomic_read(&tcon->num_t2renames));
		buf += item_length;
		length += item_length;
		item_length = sprintf(buf, "\nFindFirst: %d FNext %d FClose %d",
			atomic_read(&tcon->num_ffirst),
			atomic_read(&tcon->num_fnext),
			atomic_read(&tcon->num_fclose));
		buf += item_length;
		length += item_length;
	}
	read_unlock(&GlobalSMBSeslock);

	buf += sprintf(buf,"\n");
	length++;

	if(offset + count >= length)
		*eof = 1;
	if(length < offset) {
		*eof = 1;
		return 0;
	} else {
		length = length - offset;
	}
	if (length > count)
		length = count;
		
	return length;
}
#endif

static struct proc_dir_entry *proc_fs_cifs;
read_proc_t cifs_txanchor_read;
static read_proc_t cifsFYI_read;
static write_proc_t cifsFYI_write;
static read_proc_t oplockEnabled_read;
static write_proc_t oplockEnabled_write;
static read_proc_t lookupFlag_read;
static write_proc_t lookupFlag_write;
static read_proc_t traceSMB_read;
static write_proc_t traceSMB_write;
static read_proc_t multiuser_mount_read;
static write_proc_t multiuser_mount_write;
static read_proc_t extended_security_read;
static write_proc_t extended_security_write;
static read_proc_t ntlmv2_enabled_read;
static write_proc_t ntlmv2_enabled_write;
static read_proc_t packet_signing_enabled_read;
static write_proc_t packet_signing_enabled_write;
static read_proc_t quotaEnabled_read;
static write_proc_t quotaEnabled_write;
static read_proc_t linuxExtensionsEnabled_read;
static write_proc_t linuxExtensionsEnabled_write;

void
cifs_proc_init(void)
{
	struct proc_dir_entry *pde;

	proc_fs_cifs = proc_mkdir("cifs", proc_root_fs);
	if (proc_fs_cifs == NULL)
		return;

	proc_fs_cifs->owner = THIS_MODULE;
	create_proc_read_entry("DebugData", 0, proc_fs_cifs,
				cifs_debug_data_read, NULL);

#ifdef CONFIG_CIFS_STATS
	create_proc_read_entry("Stats", 0, proc_fs_cifs,
				cifs_stats_read, NULL);
#endif
	pde = create_proc_read_entry("cifsFYI", 0, proc_fs_cifs,
				cifsFYI_read, NULL);
	if (pde)
		pde->write_proc = cifsFYI_write;

	pde =
	    create_proc_read_entry("traceSMB", 0, proc_fs_cifs,
				traceSMB_read, NULL);
	if (pde)
		pde->write_proc = traceSMB_write;

	pde = create_proc_read_entry("OplockEnabled", 0, proc_fs_cifs,
				oplockEnabled_read, NULL);
	if (pde)
		pde->write_proc = oplockEnabled_write;

	pde = create_proc_read_entry("Experimental", 0, proc_fs_cifs,
				quotaEnabled_read, NULL);
	if (pde)
		pde->write_proc = quotaEnabled_write;

	pde = create_proc_read_entry("LinuxExtensionsEnabled", 0, proc_fs_cifs,
				linuxExtensionsEnabled_read, NULL);
	if (pde)
		pde->write_proc = linuxExtensionsEnabled_write;

	pde =
	    create_proc_read_entry("MultiuserMount", 0, proc_fs_cifs,
				multiuser_mount_read, NULL);
	if (pde)
		pde->write_proc = multiuser_mount_write;

	pde =
	    create_proc_read_entry("ExtendedSecurity", 0, proc_fs_cifs,
				extended_security_read, NULL);
	if (pde)
		pde->write_proc = extended_security_write;

	pde =
	create_proc_read_entry("LookupCacheEnabled", 0, proc_fs_cifs,
				lookupFlag_read, NULL);
	if (pde)
		pde->write_proc = lookupFlag_write;

	pde =
	    create_proc_read_entry("NTLMV2Enabled", 0, proc_fs_cifs,
				ntlmv2_enabled_read, NULL);
	if (pde)
		pde->write_proc = ntlmv2_enabled_write;

	pde =
	    create_proc_read_entry("PacketSigningEnabled", 0, proc_fs_cifs,
				packet_signing_enabled_read, NULL);
	if (pde)
		pde->write_proc = packet_signing_enabled_write;
}

void
cifs_proc_clean(void)
{
	if (proc_fs_cifs == NULL)
		return;

	remove_proc_entry("DebugData", proc_fs_cifs);
	remove_proc_entry("cifsFYI", proc_fs_cifs);
	remove_proc_entry("traceSMB", proc_fs_cifs);
#ifdef CONFIG_CIFS_STATS
	remove_proc_entry("Stats", proc_fs_cifs);
#endif
	remove_proc_entry("MultiuserMount", proc_fs_cifs);
	remove_proc_entry("OplockEnabled", proc_fs_cifs);
	remove_proc_entry("NTLMV2Enabled",proc_fs_cifs);
	remove_proc_entry("ExtendedSecurity",proc_fs_cifs);
	remove_proc_entry("PacketSigningEnabled",proc_fs_cifs);
	remove_proc_entry("LinuxExtensionsEnabled",proc_fs_cifs);
	remove_proc_entry("Experimental",proc_fs_cifs);
	remove_proc_entry("LookupCacheEnabled",proc_fs_cifs);
	remove_proc_entry("cifs", proc_root_fs);
}

static int
cifsFYI_read(char *page, char **start, off_t off, int count,
	     int *eof, void *data)
{
	int len;

	len = sprintf(page, "%d\n", cifsFYI);

	len -= off;
	*start = page + off;

	if (len > count)
		len = count;
	else
		*eof = 1;

	if (len < 0)
		len = 0;

	return len;
}
static int
cifsFYI_write(struct file *file, const char __user *buffer,
	      unsigned long count, void *data)
{
	char c;
	int rc;

	rc = get_user(c, buffer);
	if (rc)
		return rc;
	if (c == '0' || c == 'n' || c == 'N')
		cifsFYI = 0;
	else if (c == '1' || c == 'y' || c == 'Y')
		cifsFYI = 1;

	return count;
}

static int
oplockEnabled_read(char *page, char **start, off_t off,
		   int count, int *eof, void *data)
{
	int len;

	len = sprintf(page, "%d\n", oplockEnabled);

	len -= off;
	*start = page + off;

	if (len > count)
		len = count;
	else
		*eof = 1;

	if (len < 0)
		len = 0;

	return len;
}
static int
oplockEnabled_write(struct file *file, const char __user *buffer,
		    unsigned long count, void *data)
{
	char c;
	int rc;

	rc = get_user(c, buffer);
	if (rc)
		return rc;
	if (c == '0' || c == 'n' || c == 'N')
		oplockEnabled = 0;
	else if (c == '1' || c == 'y' || c == 'Y')
		oplockEnabled = 1;

	return count;
}

static int
quotaEnabled_read(char *page, char **start, off_t off,
                   int count, int *eof, void *data)
{
        int len;

        len = sprintf(page, "%d\n", experimEnabled);
/* could also check if quotas are enabled in kernel
	as a whole first */
        len -= off;
        *start = page + off;

        if (len > count)
                len = count;
        else
                *eof = 1;

        if (len < 0)
                len = 0;

        return len;
}
static int
quotaEnabled_write(struct file *file, const char __user *buffer,
                    unsigned long count, void *data)
{
        char c;
        int rc;

        rc = get_user(c, buffer);
        if (rc)
                return rc;
        if (c == '0' || c == 'n' || c == 'N')
                experimEnabled = 0;
        else if (c == '1' || c == 'y' || c == 'Y')
                experimEnabled = 1;

        return count;
}

static int
linuxExtensionsEnabled_read(char *page, char **start, off_t off,
                   int count, int *eof, void *data)
{
        int len;

        len = sprintf(page, "%d\n", linuxExtEnabled);
/* could also check if quotas are enabled in kernel
	as a whole first */
        len -= off;
        *start = page + off;

        if (len > count)
                len = count;
        else
                *eof = 1;

        if (len < 0)
                len = 0;

        return len;
}
static int
linuxExtensionsEnabled_write(struct file *file, const char __user *buffer,
                    unsigned long count, void *data)
{
        char c;
        int rc;

        rc = get_user(c, buffer);
        if (rc)
                return rc;
        if (c == '0' || c == 'n' || c == 'N')
                linuxExtEnabled = 0;
        else if (c == '1' || c == 'y' || c == 'Y')
                linuxExtEnabled = 1;

        return count;
}


static int
lookupFlag_read(char *page, char **start, off_t off,
		   int count, int *eof, void *data)
{
	int len;

	len = sprintf(page, "%d\n", lookupCacheEnabled);

	len -= off;
	*start = page + off;

	if (len > count)
		len = count;
	else
		*eof = 1;

	if (len < 0)
		len = 0;

	return len;
}
static int
lookupFlag_write(struct file *file, const char __user *buffer,
		    unsigned long count, void *data)
{
	char c;
	int rc;

	rc = get_user(c, buffer);
	if (rc)
		return rc;
	if (c == '0' || c == 'n' || c == 'N')
		lookupCacheEnabled = 0;
	else if (c == '1' || c == 'y' || c == 'Y')
		lookupCacheEnabled = 1;

	return count;
}
static int
traceSMB_read(char *page, char **start, off_t off, int count,
	      int *eof, void *data)
{
	int len;

	len = sprintf(page, "%d\n", traceSMB);

	len -= off;
	*start = page + off;

	if (len > count)
		len = count;
	else
		*eof = 1;

	if (len < 0)
		len = 0;

	return len;
}
static int
traceSMB_write(struct file *file, const char __user *buffer,
	       unsigned long count, void *data)
{
	char c;
	int rc;

	rc = get_user(c, buffer);
	if (rc)
		return rc;
	if (c == '0' || c == 'n' || c == 'N')
		traceSMB = 0;
	else if (c == '1' || c == 'y' || c == 'Y')
		traceSMB = 1;

	return count;
}

static int
multiuser_mount_read(char *page, char **start, off_t off,
		     int count, int *eof, void *data)
{
	int len;

	len = sprintf(page, "%d\n", multiuser_mount);

	len -= off;
	*start = page + off;

	if (len > count)
		len = count;
	else
		*eof = 1;

	if (len < 0)
		len = 0;

	return len;
}
static int
multiuser_mount_write(struct file *file, const char __user *buffer,
		      unsigned long count, void *data)
{
	char c;
	int rc;

	rc = get_user(c, buffer);
	if (rc)
		return rc;
	if (c == '0' || c == 'n' || c == 'N')
		multiuser_mount = 0;
	else if (c == '1' || c == 'y' || c == 'Y')
		multiuser_mount = 1;

	return count;
}

static int
extended_security_read(char *page, char **start, off_t off,
		       int count, int *eof, void *data)
{
	int len;

	len = sprintf(page, "%d\n", extended_security);

	len -= off;
	*start = page + off;

	if (len > count)
		len = count;
	else
		*eof = 1;

	if (len < 0)
		len = 0;

	return len;
}
static int
extended_security_write(struct file *file, const char __user *buffer,
			unsigned long count, void *data)
{
	char c;
	int rc;

	rc = get_user(c, buffer);
	if (rc)
		return rc;
	if (c == '0' || c == 'n' || c == 'N')
		extended_security = 0;
	else if (c == '1' || c == 'y' || c == 'Y')
		extended_security = 1;

	return count;
}

static int
ntlmv2_enabled_read(char *page, char **start, off_t off,
		       int count, int *eof, void *data)
{
	int len;

	len = sprintf(page, "%d\n", ntlmv2_support);

	len -= off;
	*start = page + off;

	if (len > count)
		len = count;
	else
		*eof = 1;

	if (len < 0)
		len = 0;

	return len;
}
static int
ntlmv2_enabled_write(struct file *file, const char __user *buffer,
			unsigned long count, void *data)
{
	char c;
	int rc;

	rc = get_user(c, buffer);
	if (rc)
		return rc;
	if (c == '0' || c == 'n' || c == 'N')
		ntlmv2_support = 0;
	else if (c == '1' || c == 'y' || c == 'Y')
		ntlmv2_support = 1;

	return count;
}

static int
packet_signing_enabled_read(char *page, char **start, off_t off,
		       int count, int *eof, void *data)
{
	int len;

	len = sprintf(page, "%d\n", sign_CIFS_PDUs);

	len -= off;
	*start = page + off;

	if (len > count)
		len = count;
	else
		*eof = 1;

	if (len < 0)
		len = 0;

	return len;
}
static int
packet_signing_enabled_write(struct file *file, const char __user *buffer,
			unsigned long count, void *data)
{
	char c;
	int rc;

	rc = get_user(c, buffer);
	if (rc)
		return rc;
	if (c == '0' || c == 'n' || c == 'N')
		sign_CIFS_PDUs = 0;
	else if (c == '1' || c == 'y' || c == 'Y')
		sign_CIFS_PDUs = 1;
	else if (c == '2')
		sign_CIFS_PDUs = 2;

	return count;
}


#endif
Commit	Line	Data
1da177e4 LT	1	/*
	2	* fs/cifs_debug.c
	3	*
b8643e1b	4	* Copyright (C) International Business Machines Corp., 2000,2005
1da177e4 LT	5	*
	6	* Modified by Steve French (sfrench@us.ibm.com)
	7	*
	8	* This program is free software; you can redistribute it and/or modify
	9	* it under the terms of the GNU General Public License as published by
	10	* the Free Software Foundation; either version 2 of the License, or
	11	* (at your option) any later version.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
	16	* the GNU General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with this program; if not, write to the Free Software
	20	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	21	*/
	22	#include <linux/fs.h>
	23	#include <linux/string.h>
	24	#include <linux/ctype.h>
	25	#include <linux/module.h>
	26	#include <linux/proc_fs.h>
	27	#include <asm/uaccess.h>
	28	#include "cifspdu.h"
	29	#include "cifsglob.h"
	30	#include "cifsproto.h"
	31	#include "cifs_debug.h"
6c91d362	32	#include "cifsfs.h"
1da177e4 LT	33
	34	void
	35	cifs_dump_mem(char label, void data, int length)
	36	{
	37	int i, j;
	38	int *intptr = data;
	39	char *charptr = data;
	40	char buf[10], line[80];
	41
	42	printk(KERN_DEBUG "%s: dump of %d bytes of data at 0x%p\n\n",
	43	label, length, data);
	44	for (i = 0; i < length; i += 16) {
	45	line[0] = 0;
	46	for (j = 0; (j < 4) && (i + j * 4 < length); j++) {
	47	sprintf(buf, " %08x", intptr[i / 4 + j]);
	48	strcat(line, buf);
	49	}
	50	buf[0] = ' ';
	51	buf[2] = 0;
	52	for (j = 0; (j < 16) && (i + j < length); j++) {
	53	buf[1] = isprint(charptr[i + j]) ? charptr[i + j] : '.';
	54	strcat(line, buf);
	55	}
	56	printk(KERN_DEBUG "%s\n", line);
	57	}
	58	}
	59
	60	#ifdef CONFIG_PROC_FS
	61	static int
	62	cifs_debug_data_read(char buf, char *beginBuffer, off_t offset,
	63	int count, int eof, void data)
	64	{
	65	struct list_head *tmp;
	66	struct list_head *tmp1;
	67	struct mid_q_entry * mid_entry;
	68	struct cifsSesInfo *ses;
	69	struct cifsTconInfo *tcon;
	70	int i;
	71	int length = 0;
	72	char * original_buf = buf;
	73
	74	*beginBuffer = buf + offset;
	75
	76
	77	length =
	78	sprintf(buf,
	79	"Display Internal CIFS Data Structures for Debugging\n"
	80	"---------------------------------------------------\n");
	81	buf += length;
6c91d362 SF	82	length = sprintf(buf,"CIFS Version %s\n",CIFS_VERSION);
	83	buf += length;
	84	length = sprintf(buf, "Servers:");
1da177e4 LT	85	buf += length;
	86
	87	i = 0;
	88	read_lock(&GlobalSMBSeslock);
	89	list_for_each(tmp, &GlobalSMBSessionList) {
	90	i++;
	91	ses = list_entry(tmp, struct cifsSesInfo, cifsSessionList);
433dc24f SF	92	if((ses->serverDomain == NULL) \|\| (ses->serverOS == NULL) \|\|
	93	(ses->serverNOS == NULL)) {
	94	buf += sprintf("\nentry for %s not fully displayed\n\t",
	95	ses->serverName);
	96
	97	} else {
	98	length =
	99	sprintf(buf,
	100	"\n%d) Name: %s Domain: %s Mounts: %d ServerOS: %s \n\tServerNOS: %s\tCapabilities: 0x%x\n\tSMB session status: %d\t",
b8643e1b SF	101	i, ses->serverName, ses->serverDomain,
	102	atomic_read(&ses->inUse),
	103	ses->serverOS, ses->serverNOS,
	104	ses->capabilities,ses->status);
433dc24f SF	105	buf += length;
433dc24f SF	106	}
1da177e4 LT	107	if(ses->server) {
	108	buf += sprintf(buf, "TCP status: %d\n\tLocal Users To Server: %d SecMode: 0x%x Req Active: %d",
	109	ses->server->tcpStatus,
	110	atomic_read(&ses->server->socketUseCount),
	111	ses->server->secMode,
	112	atomic_read(&ses->server->inFlight));
	113
6c91d362	114	length = sprintf(buf, "\nMIDs:\n");
1da177e4 LT	115	buf += length;
	116
	117	spin_lock(&GlobalMid_Lock);
	118	list_for_each(tmp1, &ses->server->pending_mid_q) {
	119	mid_entry = list_entry(tmp1, struct
	120	mid_q_entry,
	121	qhead);
	122	if(mid_entry) {
848f3fce SF	123	length = sprintf(buf,"State: %d com: %d pid: %d tsk: %p mid %d\n",
	124	mid_entry->midState,
	125	(int)mid_entry->command,
	126	mid_entry->pid,
	127	mid_entry->tsk,
	128	mid_entry->mid);
1da177e4 LT	129	buf += length;
	130	}
	131	}
	132	spin_unlock(&GlobalMid_Lock);
	133	}
	134
	135	}
	136	read_unlock(&GlobalSMBSeslock);
	137	sprintf(buf, "\n");
	138	buf++;
	139
6c91d362	140	length = sprintf(buf, "Shares:");
1da177e4 LT	141	buf += length;
	142
	143	i = 0;
	144	read_lock(&GlobalSMBSeslock);
	145	list_for_each(tmp, &GlobalTreeConnectionList) {
	146	__u32 dev_type;
	147	i++;
	148	tcon = list_entry(tmp, struct cifsTconInfo, cifsConnectionList);
	149	dev_type = le32_to_cpu(tcon->fsDevInfo.DeviceType);
	150	length =
	151	sprintf(buf,
	152	"\n%d) %s Uses: %d Type: %s Characteristics: 0x%x Attributes: 0x%x\nPathComponentMax: %d Status: %d",
	153	i, tcon->treeName,
	154	atomic_read(&tcon->useCount),
	155	tcon->nativeFileSystem,
	156	le32_to_cpu(tcon->fsDevInfo.DeviceCharacteristics),
	157	le32_to_cpu(tcon->fsAttrInfo.Attributes),
	158	le32_to_cpu(tcon->fsAttrInfo.MaxPathNameComponentLength),
	159	tcon->tidStatus);
	160	buf += length;
	161	if (dev_type == FILE_DEVICE_DISK)
	162	length = sprintf(buf, " type: DISK ");
	163	else if (dev_type == FILE_DEVICE_CD_ROM)
	164	length = sprintf(buf, " type: CDROM ");
	165	else
	166	length =
	167	sprintf(buf, " type: %d ", dev_type);
	168	buf += length;
	169	if(tcon->tidStatus == CifsNeedReconnect) {
	170	buf += sprintf(buf, "\tDISCONNECTED ");
	171	length += 14;
	172	}
	173	}
	174	read_unlock(&GlobalSMBSeslock);
	175
	176	length = sprintf(buf, "\n");
	177	buf += length;
	178
	179	/* BB add code to dump additional info such as TCP session info now */
	180	/* Now calculate total size of returned data */
	181	length = buf - original_buf;
	182
	183	if(offset + count >= length)
	184	*eof = 1;
	185	if(length < offset) {
	186	*eof = 1;
	187	return 0;
	188	} else {
	189	length = length - offset;
	190	}
	191	if (length > count)
	192	length = count;
	193
	194	return length;
	195	}
	196
	197	#ifdef CONFIG_CIFS_STATS
	198	static int
	199	cifs_stats_read(char buf, char *beginBuffer, off_t offset,
	200	int count, int eof, void data)
	201	{
	202	int item_length,i,length;
	203	struct list_head *tmp;
	204	struct cifsTconInfo *tcon;
205
206	*beginBuffer = buf + offset;
207
208	length = sprintf(buf,
209	"Resources in use\nCIFS Session: %d\n",
210	sesInfoAllocCount.counter);
211	buf += length;
212	item_length =
213	sprintf(buf,"Share (unique mount targets): %d\n",
214	tconInfoAllocCount.counter);
215	length += item_length;
216	buf += item_length;
217	item_length =
218	sprintf(buf,"SMB Request/Response Buffer: %d Pool size: %d\n",
b8643e1b SF	219	bufAllocCount.counter,
b8643e1b SF	220	cifs_min_rcv + tcpSesAllocCount.counter);
1da177e4 LT	221	length += item_length;
	222	buf += item_length;
	223	item_length =
	224	sprintf(buf,"SMB Small Req/Resp Buffer: %d Pool size: %d\n",
	225	smBufAllocCount.counter,cifs_min_small);
	226	length += item_length;
	227	buf += item_length;
	228	item_length =
	229	sprintf(buf,"Operations (MIDs): %d\n",
	230	midCount.counter);
	231	length += item_length;
	232	buf += item_length;
	233	item_length = sprintf(buf,
	234	"\n%d session %d share reconnects\n",
	235	tcpSesReconnectCount.counter,tconInfoReconnectCount.counter);
	236	length += item_length;
	237	buf += item_length;
	238
	239	item_length = sprintf(buf,
	240	"Total vfs operations: %d maximum at one time: %d\n",
	241	GlobalCurrentXid,GlobalMaxActiveXid);
	242	length += item_length;
	243	buf += item_length;
	244
	245	i = 0;
	246	read_lock(&GlobalSMBSeslock);
	247	list_for_each(tmp, &GlobalTreeConnectionList) {
	248	i++;
	249	tcon = list_entry(tmp, struct cifsTconInfo, cifsConnectionList);
	250	item_length = sprintf(buf,"\n%d) %s",i, tcon->treeName);
	251	buf += item_length;
	252	length += item_length;
	253	if(tcon->tidStatus == CifsNeedReconnect) {
	254	buf += sprintf(buf, "\tDISCONNECTED ");
	255	length += 14;
	256	}
a5a2b489	257	item_length = sprintf(buf, "\nSMBs: %d Oplock Breaks: %d",
1da177e4 LT	258	atomic_read(&tcon->num_smbs_sent),
	259	atomic_read(&tcon->num_oplock_brks));
	260	buf += item_length;
	261	length += item_length;
a5a2b489	262	item_length = sprintf(buf, "\nReads: %d Bytes %lld",
1da177e4 LT	263	atomic_read(&tcon->num_reads),
	264	(long long)(tcon->bytes_read));
	265	buf += item_length;
	266	length += item_length;
a5a2b489	267	item_length = sprintf(buf, "\nWrites: %d Bytes: %lld",
1da177e4 LT	268	atomic_read(&tcon->num_writes),
1da177e4 LT	269	(long long)(tcon->bytes_written));
a5a2b489 SF	270	buf += item_length;
	271	length += item_length;
	272	item_length = sprintf(buf,
	273	"\nLocks: %d HardLinks: %d Symlinks: %d",
	274	atomic_read(&tcon->num_locks),
	275	atomic_read(&tcon->num_hardlinks),
	276	atomic_read(&tcon->num_symlinks));
	277	buf += item_length;
	278	length += item_length;
	279
	280	item_length = sprintf(buf, "\nOpens: %d Closes: %d Deletes: %d",
	281	atomic_read(&tcon->num_opens),
	282	atomic_read(&tcon->num_closes),
	283	atomic_read(&tcon->num_deletes));
1da177e4 LT	284	buf += item_length;
1da177e4 LT	285	length += item_length;
a5a2b489	286	item_length = sprintf(buf, "\nMkdirs: %d Rmdirs: %d",
1da177e4 LT	287	atomic_read(&tcon->num_mkdirs),
	288	atomic_read(&tcon->num_rmdirs));
	289	buf += item_length;
	290	length += item_length;
a5a2b489	291	item_length = sprintf(buf, "\nRenames: %d T2 Renames %d",
1da177e4 LT	292	atomic_read(&tcon->num_renames),
	293	atomic_read(&tcon->num_t2renames));
	294	buf += item_length;
	295	length += item_length;
a5a2b489	296	item_length = sprintf(buf, "\nFindFirst: %d FNext %d FClose %d",
0c0ff093 SF	297	atomic_read(&tcon->num_ffirst),
	298	atomic_read(&tcon->num_fnext),
	299	atomic_read(&tcon->num_fclose));
	300	buf += item_length;
	301	length += item_length;
1da177e4 LT	302	}
	303	read_unlock(&GlobalSMBSeslock);
	304
	305	buf += sprintf(buf,"\n");
	306	length++;
	307
	308	if(offset + count >= length)
	309	*eof = 1;
	310	if(length < offset) {
	311	*eof = 1;
	312	return 0;
	313	} else {
	314	length = length - offset;
	315	}
	316	if (length > count)
	317	length = count;
	318
	319	return length;
	320	}
	321	#endif
	322
	323	static struct proc_dir_entry *proc_fs_cifs;
	324	read_proc_t cifs_txanchor_read;
	325	static read_proc_t cifsFYI_read;
	326	static write_proc_t cifsFYI_write;
	327	static read_proc_t oplockEnabled_read;
	328	static write_proc_t oplockEnabled_write;
	329	static read_proc_t lookupFlag_read;
	330	static write_proc_t lookupFlag_write;
	331	static read_proc_t traceSMB_read;
	332	static write_proc_t traceSMB_write;
	333	static read_proc_t multiuser_mount_read;
	334	static write_proc_t multiuser_mount_write;
	335	static read_proc_t extended_security_read;
	336	static write_proc_t extended_security_write;
	337	static read_proc_t ntlmv2_enabled_read;
	338	static write_proc_t ntlmv2_enabled_write;
	339	static read_proc_t packet_signing_enabled_read;
	340	static write_proc_t packet_signing_enabled_write;
	341	static read_proc_t quotaEnabled_read;
	342	static write_proc_t quotaEnabled_write;
	343	static read_proc_t linuxExtensionsEnabled_read;
	344	static write_proc_t linuxExtensionsEnabled_write;
	345
	346	void
	347	cifs_proc_init(void)
	348	{
	349	struct proc_dir_entry *pde;
	350
	351	proc_fs_cifs = proc_mkdir("cifs", proc_root_fs);
	352	if (proc_fs_cifs == NULL)
	353	return;
	354
	355	proc_fs_cifs->owner = THIS_MODULE;
	356	create_proc_read_entry("DebugData", 0, proc_fs_cifs,
	357	cifs_debug_data_read, NULL);
	358
	359	#ifdef CONFIG_CIFS_STATS
	360	create_proc_read_entry("Stats", 0, proc_fs_cifs,
	361	cifs_stats_read, NULL);
	362	#endif
	363	pde = create_proc_read_entry("cifsFYI", 0, proc_fs_cifs,
	364	cifsFYI_read, NULL);
	365	if (pde)
366	pde->write_proc = cifsFYI_write;
367
368	pde =
369	create_proc_read_entry("traceSMB", 0, proc_fs_cifs,
370	traceSMB_read, NULL);
371	if (pde)
372	pde->write_proc = traceSMB_write;
373
374	pde = create_proc_read_entry("OplockEnabled", 0, proc_fs_cifs,
375	oplockEnabled_read, NULL);
376	if (pde)
377	pde->write_proc = oplockEnabled_write;
378
0c0ff093	379	pde = create_proc_read_entry("Experimental", 0, proc_fs_cifs,
1da177e4 LT	380	quotaEnabled_read, NULL);
	381	if (pde)
	382	pde->write_proc = quotaEnabled_write;
	383
	384	pde = create_proc_read_entry("LinuxExtensionsEnabled", 0, proc_fs_cifs,
	385	linuxExtensionsEnabled_read, NULL);
	386	if (pde)
	387	pde->write_proc = linuxExtensionsEnabled_write;
	388
	389	pde =
	390	create_proc_read_entry("MultiuserMount", 0, proc_fs_cifs,
	391	multiuser_mount_read, NULL);
	392	if (pde)
	393	pde->write_proc = multiuser_mount_write;
	394
	395	pde =
	396	create_proc_read_entry("ExtendedSecurity", 0, proc_fs_cifs,
	397	extended_security_read, NULL);
	398	if (pde)
	399	pde->write_proc = extended_security_write;
	400
	401	pde =
	402	create_proc_read_entry("LookupCacheEnabled", 0, proc_fs_cifs,
	403	lookupFlag_read, NULL);
	404	if (pde)
	405	pde->write_proc = lookupFlag_write;
	406
	407	pde =
	408	create_proc_read_entry("NTLMV2Enabled", 0, proc_fs_cifs,
	409	ntlmv2_enabled_read, NULL);
	410	if (pde)
	411	pde->write_proc = ntlmv2_enabled_write;
	412
	413	pde =
	414	create_proc_read_entry("PacketSigningEnabled", 0, proc_fs_cifs,
	415	packet_signing_enabled_read, NULL);
	416	if (pde)
	417	pde->write_proc = packet_signing_enabled_write;
	418	}
	419
	420	void
	421	cifs_proc_clean(void)
	422	{
	423	if (proc_fs_cifs == NULL)
	424	return;
	425
	426	remove_proc_entry("DebugData", proc_fs_cifs);
	427	remove_proc_entry("cifsFYI", proc_fs_cifs);
	428	remove_proc_entry("traceSMB", proc_fs_cifs);
	429	#ifdef CONFIG_CIFS_STATS
	430	remove_proc_entry("Stats", proc_fs_cifs);
	431	#endif
	432	remove_proc_entry("MultiuserMount", proc_fs_cifs);
	433	remove_proc_entry("OplockEnabled", proc_fs_cifs);
	434	remove_proc_entry("NTLMV2Enabled",proc_fs_cifs);
	435	remove_proc_entry("ExtendedSecurity",proc_fs_cifs);
	436	remove_proc_entry("PacketSigningEnabled",proc_fs_cifs);
	437	remove_proc_entry("LinuxExtensionsEnabled",proc_fs_cifs);
0c0ff093	438	remove_proc_entry("Experimental",proc_fs_cifs);
1da177e4 LT	439	remove_proc_entry("LookupCacheEnabled",proc_fs_cifs);
	440	remove_proc_entry("cifs", proc_root_fs);
	441	}
	442
	443	static int
	444	cifsFYI_read(char page, char *start, off_t off, int count,
	445	int eof, void data)
	446	{
	447	int len;
	448
	449	len = sprintf(page, "%d\n", cifsFYI);
	450
	451	len -= off;
	452	*start = page + off;
	453
	454	if (len > count)
	455	len = count;
	456	else
	457	*eof = 1;
	458
	459	if (len < 0)
	460	len = 0;
	461
	462	return len;
	463	}
	464	static int
	465	cifsFYI_write(struct file file, const char __user buffer,
	466	unsigned long count, void *data)
	467	{
	468	char c;
	469	int rc;
	470
	471	rc = get_user(c, buffer);
	472	if (rc)
	473	return rc;
	474	if (c == '0' \|\| c == 'n' \|\| c == 'N')
	475	cifsFYI = 0;
	476	else if (c == '1' \|\| c == 'y' \|\| c == 'Y')
	477	cifsFYI = 1;
	478
	479	return count;
	480	}
	481
	482	static int
	483	oplockEnabled_read(char page, char *start, off_t off,
	484	int count, int eof, void data)
	485	{
	486	int len;
	487
	488	len = sprintf(page, "%d\n", oplockEnabled);
	489
	490	len -= off;
	491	*start = page + off;
	492
	493	if (len > count)
	494	len = count;
	495	else
	496	*eof = 1;
	497
	498	if (len < 0)
	499	len = 0;
	500
	501	return len;
	502	}
503	static int
504	oplockEnabled_write(struct file file, const char __user buffer,
505	unsigned long count, void *data)
506	{
507	char c;
508	int rc;
509
510	rc = get_user(c, buffer);
511	if (rc)
512	return rc;
513	if (c == '0' \|\| c == 'n' \|\| c == 'N')
514	oplockEnabled = 0;
515	else if (c == '1' \|\| c == 'y' \|\| c == 'Y')
516	oplockEnabled = 1;
517
518	return count;
519	}
520
521	static int
522	quotaEnabled_read(char page, char *start, off_t off,
523	int count, int eof, void data)
524	{
525	int len;
526
527	len = sprintf(page, "%d\n", experimEnabled);
528	/* could also check if quotas are enabled in kernel
529	as a whole first */
530	len -= off;
531	*start = page + off;
532
533	if (len > count)
534	len = count;
535	else
536	*eof = 1;
537
538	if (len < 0)
539	len = 0;
540
541	return len;
542	}
543	static int
544	quotaEnabled_write(struct file file, const char __user buffer,
545	unsigned long count, void *data)
546	{
547	char c;
548	int rc;
549
550	rc = get_user(c, buffer);
551	if (rc)
552	return rc;
553	if (c == '0' \|\| c == 'n' \|\| c == 'N')
554	experimEnabled = 0;
555	else if (c == '1' \|\| c == 'y' \|\| c == 'Y')
556	experimEnabled = 1;
557
558	return count;
559	}
560
561	static int
562	linuxExtensionsEnabled_read(char page, char *start, off_t off,
563	int count, int eof, void data)
564	{
565	int len;
566
567	len = sprintf(page, "%d\n", linuxExtEnabled);
568	/* could also check if quotas are enabled in kernel
569	as a whole first */
570	len -= off;
571	*start = page + off;
572
573	if (len > count)
574	len = count;
575	else
576	*eof = 1;
577
578	if (len < 0)
579	len = 0;
580
581	return len;
582	}
583	static int
584	linuxExtensionsEnabled_write(struct file file, const char __user buffer,
585	unsigned long count, void *data)
586	{
587	char c;
588	int rc;
589
590	rc = get_user(c, buffer);
591	if (rc)
592	return rc;
593	if (c == '0' \|\| c == 'n' \|\| c == 'N')
594	linuxExtEnabled = 0;
595	else if (c == '1' \|\| c == 'y' \|\| c == 'Y')
596	linuxExtEnabled = 1;
597
598	return count;
599	}
600
601
602	static int
603	lookupFlag_read(char page, char *start, off_t off,
604	int count, int eof, void data)
605	{
606	int len;
607
608	len = sprintf(page, "%d\n", lookupCacheEnabled);
609
610	len -= off;
611	*start = page + off;
612
613	if (len > count)
614	len = count;
615	else
616	*eof = 1;
617
618	if (len < 0)
619	len = 0;
620
621	return len;
622	}
623	static int
624	lookupFlag_write(struct file file, const char __user buffer,
625	unsigned long count, void *data)
626	{
627	char c;
628	int rc;
629
630	rc = get_user(c, buffer);
631	if (rc)
632	return rc;
633	if (c == '0' \|\| c == 'n' \|\| c == 'N')
634	lookupCacheEnabled = 0;
635	else if (c == '1' \|\| c == 'y' \|\| c == 'Y')
636	lookupCacheEnabled = 1;
637
638	return count;
639	}
640	static int
641	traceSMB_read(char page, char *start, off_t off, int count,
642	int eof, void data)
643	{
644	int len;
645
646	len = sprintf(page, "%d\n", traceSMB);
647
648	len -= off;
649	*start = page + off;
650
651	if (len > count)
652	len = count;
653	else
654	*eof = 1;
655
656	if (len < 0)
657	len = 0;
658
659	return len;
660	}
661	static int
662	traceSMB_write(struct file file, const char __user buffer,
663	unsigned long count, void *data)
664	{
665	char c;
666	int rc;
667
668	rc = get_user(c, buffer);
669	if (rc)
670	return rc;
671	if (c == '0' \|\| c == 'n' \|\| c == 'N')
672	traceSMB = 0;
673	else if (c == '1' \|\| c == 'y' \|\| c == 'Y')
674	traceSMB = 1;
675
676	return count;
677	}
678
679	static int
680	multiuser_mount_read(char page, char *start, off_t off,
681	int count, int eof, void data)
682	{
683	int len;
684
685	len = sprintf(page, "%d\n", multiuser_mount);
686
687	len -= off;
688	*start = page + off;
689
690	if (len > count)
691	len = count;
692	else
693	*eof = 1;
694
695	if (len < 0)
696	len = 0;
697
698	return len;
699	}
700	static int
701	multiuser_mount_write(struct file file, const char __user buffer,
702	unsigned long count, void *data)
703	{
704	char c;
705	int rc;
706
707	rc = get_user(c, buffer);
708	if (rc)
709	return rc;
710	if (c == '0' \|\| c == 'n' \|\| c == 'N')
711	multiuser_mount = 0;
712	else if (c == '1' \|\| c == 'y' \|\| c == 'Y')
713	multiuser_mount = 1;
714
715	return count;
716	}
717
718	static int
719	extended_security_read(char page, char *start, off_t off,
720	int count, int eof, void data)
721	{
722	int len;
723
724	len = sprintf(page, "%d\n", extended_security);
725
726	len -= off;
727	*start = page + off;
728
729	if (len > count)
730	len = count;
731	else
732	*eof = 1;
733
734	if (len < 0)
735	len = 0;
736
737	return len;
738	}
739	static int
740	extended_security_write(struct file file, const char __user buffer,
741	unsigned long count, void *data)
742	{
743	char c;
744	int rc;
745
746	rc = get_user(c, buffer);
747	if (rc)
748	return rc;
749	if (c == '0' \|\| c == 'n' \|\| c == 'N')
750	extended_security = 0;
751	else if (c == '1' \|\| c == 'y' \|\| c == 'Y')
752	extended_security = 1;
753
754	return count;
755	}
756
757	static int
758	ntlmv2_enabled_read(char page, char *start, off_t off,
759	int count, int eof, void data)
760	{
761	int len;
762
763	len = sprintf(page, "%d\n", ntlmv2_support);
764
765	len -= off;
766	*start = page + off;
767
768	if (len > count)
769	len = count;
770	else
771	*eof = 1;
772
773	if (len < 0)
774	len = 0;
775
776	return len;
777	}
778	static int
779	ntlmv2_enabled_write(struct file file, const char __user buffer,
780	unsigned long count, void *data)
781	{
782	char c;
783	int rc;
784
785	rc = get_user(c, buffer);
786	if (rc)
787	return rc;
788	if (c == '0' \|\| c == 'n' \|\| c == 'N')
789	ntlmv2_support = 0;
790	else if (c == '1' \|\| c == 'y' \|\| c == 'Y')
791	ntlmv2_support = 1;
792
793	return count;
794	}
795
796	static int
797	packet_signing_enabled_read(char page, char *start, off_t off,
798	int count, int eof, void data)
799	{
800	int len;
801
802	len = sprintf(page, "%d\n", sign_CIFS_PDUs);
803
804	len -= off;
805	*start = page + off;
806
807	if (len > count)
808	len = count;
809	else
810	*eof = 1;
811
812	if (len < 0)
813	len = 0;
814
815	return len;
816	}
817	static int
818	packet_signing_enabled_write(struct file file, const char __user buffer,
819	unsigned long count, void *data)
820	{
821	char c;
822	int rc;
823
824	rc = get_user(c, buffer);
825	if (rc)
826	return rc;
827	if (c == '0' \|\| c == 'n' \|\| c == 'N')
828	sign_CIFS_PDUs = 0;
829	else if (c == '1' \|\| c == 'y' \|\| c == 'Y')
830	sign_CIFS_PDUs = 1;
831	else if (c == '2')
832	sign_CIFS_PDUs = 2;
833
834	return count;
835	}
836
837
838	#endif