[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,
			"\nOpens: %d Deletes: %d\nMkdirs: %d Rmdirs: %d",
			atomic_read(&tcon->num_opens),
			atomic_read(&tcon->num_deletes),
			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;
	}
	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("ReenableOldCifsReaddirCode", 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("ReenableOldCifsReaddirCode",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	}
	257	item_length = sprintf(buf,"\nSMBs: %d Oplock Breaks: %d",
	258	atomic_read(&tcon->num_smbs_sent),
	259	atomic_read(&tcon->num_oplock_brks));
	260	buf += item_length;
	261	length += item_length;
	262	item_length = sprintf(buf,"\nReads: %d Bytes %lld",
	263	atomic_read(&tcon->num_reads),
	264	(long long)(tcon->bytes_read));
	265	buf += item_length;
	266	length += item_length;
	267	item_length = sprintf(buf,"\nWrites: %d Bytes: %lld",
	268	atomic_read(&tcon->num_writes),
	269	(long long)(tcon->bytes_written));
	270	buf += item_length;
	271	length += item_length;
	272	item_length = sprintf(buf,
	273	"\nOpens: %d Deletes: %d\nMkdirs: %d Rmdirs: %d",
	274	atomic_read(&tcon->num_opens),
	275	atomic_read(&tcon->num_deletes),
	276	atomic_read(&tcon->num_mkdirs),
	277	atomic_read(&tcon->num_rmdirs));
	278	buf += item_length;
	279	length += item_length;
	280	item_length = sprintf(buf,
	281	"\nRenames: %d T2 Renames %d",
	282	atomic_read(&tcon->num_renames),
	283	atomic_read(&tcon->num_t2renames));
	284	buf += item_length;
285	length += item_length;
286	}
287	read_unlock(&GlobalSMBSeslock);
288
289	buf += sprintf(buf,"\n");
290	length++;
291
292	if(offset + count >= length)
293	*eof = 1;
294	if(length < offset) {
295	*eof = 1;
296	return 0;
297	} else {
298	length = length - offset;
299	}
300	if (length > count)
301	length = count;
302
303	return length;
304	}
305	#endif
306
307	static struct proc_dir_entry *proc_fs_cifs;
308	read_proc_t cifs_txanchor_read;
309	static read_proc_t cifsFYI_read;
310	static write_proc_t cifsFYI_write;
311	static read_proc_t oplockEnabled_read;
312	static write_proc_t oplockEnabled_write;
313	static read_proc_t lookupFlag_read;
314	static write_proc_t lookupFlag_write;
315	static read_proc_t traceSMB_read;
316	static write_proc_t traceSMB_write;
317	static read_proc_t multiuser_mount_read;
318	static write_proc_t multiuser_mount_write;
319	static read_proc_t extended_security_read;
320	static write_proc_t extended_security_write;
321	static read_proc_t ntlmv2_enabled_read;
322	static write_proc_t ntlmv2_enabled_write;
323	static read_proc_t packet_signing_enabled_read;
324	static write_proc_t packet_signing_enabled_write;
325	static read_proc_t quotaEnabled_read;
326	static write_proc_t quotaEnabled_write;
327	static read_proc_t linuxExtensionsEnabled_read;
328	static write_proc_t linuxExtensionsEnabled_write;
329
330	void
331	cifs_proc_init(void)
332	{
333	struct proc_dir_entry *pde;
334
335	proc_fs_cifs = proc_mkdir("cifs", proc_root_fs);
336	if (proc_fs_cifs == NULL)
337	return;
338
339	proc_fs_cifs->owner = THIS_MODULE;
340	create_proc_read_entry("DebugData", 0, proc_fs_cifs,
341	cifs_debug_data_read, NULL);
342
343	#ifdef CONFIG_CIFS_STATS
344	create_proc_read_entry("Stats", 0, proc_fs_cifs,
345	cifs_stats_read, NULL);
346	#endif
347	pde = create_proc_read_entry("cifsFYI", 0, proc_fs_cifs,
348	cifsFYI_read, NULL);
349	if (pde)
350	pde->write_proc = cifsFYI_write;
351
352	pde =
353	create_proc_read_entry("traceSMB", 0, proc_fs_cifs,
354	traceSMB_read, NULL);
355	if (pde)
356	pde->write_proc = traceSMB_write;
357
358	pde = create_proc_read_entry("OplockEnabled", 0, proc_fs_cifs,
359	oplockEnabled_read, NULL);
360	if (pde)
361	pde->write_proc = oplockEnabled_write;
362
363	pde = create_proc_read_entry("ReenableOldCifsReaddirCode", 0, proc_fs_cifs,
364	quotaEnabled_read, NULL);
365	if (pde)
366	pde->write_proc = quotaEnabled_write;
367
368	pde = create_proc_read_entry("LinuxExtensionsEnabled", 0, proc_fs_cifs,
369	linuxExtensionsEnabled_read, NULL);
370	if (pde)
371	pde->write_proc = linuxExtensionsEnabled_write;
372
373	pde =
374	create_proc_read_entry("MultiuserMount", 0, proc_fs_cifs,
375	multiuser_mount_read, NULL);
376	if (pde)
377	pde->write_proc = multiuser_mount_write;
378
379	pde =
380	create_proc_read_entry("ExtendedSecurity", 0, proc_fs_cifs,
381	extended_security_read, NULL);
382	if (pde)
383	pde->write_proc = extended_security_write;
384
385	pde =
386	create_proc_read_entry("LookupCacheEnabled", 0, proc_fs_cifs,
387	lookupFlag_read, NULL);
388	if (pde)
389	pde->write_proc = lookupFlag_write;
390
391	pde =
392	create_proc_read_entry("NTLMV2Enabled", 0, proc_fs_cifs,
393	ntlmv2_enabled_read, NULL);
394	if (pde)
395	pde->write_proc = ntlmv2_enabled_write;
396
397	pde =
398	create_proc_read_entry("PacketSigningEnabled", 0, proc_fs_cifs,
399	packet_signing_enabled_read, NULL);
400	if (pde)
401	pde->write_proc = packet_signing_enabled_write;
402	}
403
404	void
405	cifs_proc_clean(void)
406	{
407	if (proc_fs_cifs == NULL)
408	return;
409
410	remove_proc_entry("DebugData", proc_fs_cifs);
411	remove_proc_entry("cifsFYI", proc_fs_cifs);
412	remove_proc_entry("traceSMB", proc_fs_cifs);
413	#ifdef CONFIG_CIFS_STATS
414	remove_proc_entry("Stats", proc_fs_cifs);
415	#endif
416	remove_proc_entry("MultiuserMount", proc_fs_cifs);
417	remove_proc_entry("OplockEnabled", proc_fs_cifs);
418	remove_proc_entry("NTLMV2Enabled",proc_fs_cifs);
419	remove_proc_entry("ExtendedSecurity",proc_fs_cifs);
420	remove_proc_entry("PacketSigningEnabled",proc_fs_cifs);
421	remove_proc_entry("LinuxExtensionsEnabled",proc_fs_cifs);
422	remove_proc_entry("ReenableOldCifsReaddirCode",proc_fs_cifs);
423	remove_proc_entry("LookupCacheEnabled",proc_fs_cifs);
424	remove_proc_entry("cifs", proc_root_fs);
425	}
426
427	static int
428	cifsFYI_read(char page, char *start, off_t off, int count,
429	int eof, void data)
430	{
431	int len;
432
433	len = sprintf(page, "%d\n", cifsFYI);
434
435	len -= off;
436	*start = page + off;
437
438	if (len > count)
439	len = count;
440	else
441	*eof = 1;
442
443	if (len < 0)
444	len = 0;
445
446	return len;
447	}
448	static int
449	cifsFYI_write(struct file file, const char __user buffer,
450	unsigned long count, void *data)
451	{
452	char c;
453	int rc;
454
455	rc = get_user(c, buffer);
456	if (rc)
457	return rc;
458	if (c == '0' \|\| c == 'n' \|\| c == 'N')
459	cifsFYI = 0;
460	else if (c == '1' \|\| c == 'y' \|\| c == 'Y')
461	cifsFYI = 1;
462
463	return count;
464	}
465
466	static int
467	oplockEnabled_read(char page, char *start, off_t off,
468	int count, int eof, void data)
469	{
470	int len;
471
472	len = sprintf(page, "%d\n", oplockEnabled);
473
474	len -= off;
475	*start = page + off;
476
477	if (len > count)
478	len = count;
479	else
480	*eof = 1;
481
482	if (len < 0)
483	len = 0;
484
485	return len;
486	}
487	static int
488	oplockEnabled_write(struct file file, const char __user buffer,
489	unsigned long count, void *data)
490	{
491	char c;
492	int rc;
493
494	rc = get_user(c, buffer);
495	if (rc)
496	return rc;
497	if (c == '0' \|\| c == 'n' \|\| c == 'N')
498	oplockEnabled = 0;
499	else if (c == '1' \|\| c == 'y' \|\| c == 'Y')
500	oplockEnabled = 1;
501
502	return count;
503	}
504
505	static int
506	quotaEnabled_read(char page, char *start, off_t off,
507	int count, int eof, void data)
508	{
509	int len;
510
511	len = sprintf(page, "%d\n", experimEnabled);
512	/* could also check if quotas are enabled in kernel
513	as a whole first */
514	len -= off;
515	*start = page + off;
516
517	if (len > count)
518	len = count;
519	else
520	*eof = 1;
521
522	if (len < 0)
523	len = 0;
524
525	return len;
526	}
527	static int
528	quotaEnabled_write(struct file file, const char __user buffer,
529	unsigned long count, void *data)
530	{
531	char c;
532	int rc;
533
534	rc = get_user(c, buffer);
535	if (rc)
536	return rc;
537	if (c == '0' \|\| c == 'n' \|\| c == 'N')
538	experimEnabled = 0;
539	else if (c == '1' \|\| c == 'y' \|\| c == 'Y')
540	experimEnabled = 1;
541
542	return count;
543	}
544
545	static int
546	linuxExtensionsEnabled_read(char page, char *start, off_t off,
547	int count, int eof, void data)
548	{
549	int len;
550
551	len = sprintf(page, "%d\n", linuxExtEnabled);
552	/* could also check if quotas are enabled in kernel
553	as a whole first */
554	len -= off;
555	*start = page + off;
556
557	if (len > count)
558	len = count;
559	else
560	*eof = 1;
561
562	if (len < 0)
563	len = 0;
564
565	return len;
566	}
567	static int
568	linuxExtensionsEnabled_write(struct file file, const char __user buffer,
569	unsigned long count, void *data)
570	{
571	char c;
572	int rc;
573
574	rc = get_user(c, buffer);
575	if (rc)
576	return rc;
577	if (c == '0' \|\| c == 'n' \|\| c == 'N')
578	linuxExtEnabled = 0;
579	else if (c == '1' \|\| c == 'y' \|\| c == 'Y')
580	linuxExtEnabled = 1;
581
582	return count;
583	}
584
585
586	static int
587	lookupFlag_read(char page, char *start, off_t off,
588	int count, int eof, void data)
589	{
590	int len;
591
592	len = sprintf(page, "%d\n", lookupCacheEnabled);
593
594	len -= off;
595	*start = page + off;
596
597	if (len > count)
598	len = count;
599	else
600	*eof = 1;
601
602	if (len < 0)
603	len = 0;
604
605	return len;
606	}
607	static int
608	lookupFlag_write(struct file file, const char __user buffer,
609	unsigned long count, void *data)
610	{
611	char c;
612	int rc;
613
614	rc = get_user(c, buffer);
615	if (rc)
616	return rc;
617	if (c == '0' \|\| c == 'n' \|\| c == 'N')
618	lookupCacheEnabled = 0;
619	else if (c == '1' \|\| c == 'y' \|\| c == 'Y')
620	lookupCacheEnabled = 1;
621
622	return count;
623	}
624	static int
625	traceSMB_read(char page, char *start, off_t off, int count,
626	int eof, void data)
627	{
628	int len;
629
630	len = sprintf(page, "%d\n", traceSMB);
631
632	len -= off;
633	*start = page + off;
634
635	if (len > count)
636	len = count;
637	else
638	*eof = 1;
639
640	if (len < 0)
641	len = 0;
642
643	return len;
644	}
645	static int
646	traceSMB_write(struct file file, const char __user buffer,
647	unsigned long count, void *data)
648	{
649	char c;
650	int rc;
651
652	rc = get_user(c, buffer);
653	if (rc)
654	return rc;
655	if (c == '0' \|\| c == 'n' \|\| c == 'N')
656	traceSMB = 0;
657	else if (c == '1' \|\| c == 'y' \|\| c == 'Y')
658	traceSMB = 1;
659
660	return count;
661	}
662
663	static int
664	multiuser_mount_read(char page, char *start, off_t off,
665	int count, int eof, void data)
666	{
667	int len;
668
669	len = sprintf(page, "%d\n", multiuser_mount);
670
671	len -= off;
672	*start = page + off;
673
674	if (len > count)
675	len = count;
676	else
677	*eof = 1;
678
679	if (len < 0)
680	len = 0;
681
682	return len;
683	}
684	static int
685	multiuser_mount_write(struct file file, const char __user buffer,
686	unsigned long count, void *data)
687	{
688	char c;
689	int rc;
690
691	rc = get_user(c, buffer);
692	if (rc)
693	return rc;
694	if (c == '0' \|\| c == 'n' \|\| c == 'N')
695	multiuser_mount = 0;
696	else if (c == '1' \|\| c == 'y' \|\| c == 'Y')
697	multiuser_mount = 1;
698
699	return count;
700	}
701
702	static int
703	extended_security_read(char page, char *start, off_t off,
704	int count, int eof, void data)
705	{
706	int len;
707
708	len = sprintf(page, "%d\n", extended_security);
709
710	len -= off;
711	*start = page + off;
712
713	if (len > count)
714	len = count;
715	else
716	*eof = 1;
717
718	if (len < 0)
719	len = 0;
720
721	return len;
722	}
723	static int
724	extended_security_write(struct file file, const char __user buffer,
725	unsigned long count, void *data)
726	{
727	char c;
728	int rc;
729
730	rc = get_user(c, buffer);
731	if (rc)
732	return rc;
733	if (c == '0' \|\| c == 'n' \|\| c == 'N')
734	extended_security = 0;
735	else if (c == '1' \|\| c == 'y' \|\| c == 'Y')
736	extended_security = 1;
737
738	return count;
739	}
740
741	static int
742	ntlmv2_enabled_read(char page, char *start, off_t off,
743	int count, int eof, void data)
744	{
745	int len;
746
747	len = sprintf(page, "%d\n", ntlmv2_support);
748
749	len -= off;
750	*start = page + off;
751
752	if (len > count)
753	len = count;
754	else
755	*eof = 1;
756
757	if (len < 0)
758	len = 0;
759
760	return len;
761	}
762	static int
763	ntlmv2_enabled_write(struct file file, const char __user buffer,
764	unsigned long count, void *data)
765	{
766	char c;
767	int rc;
768
769	rc = get_user(c, buffer);
770	if (rc)
771	return rc;
772	if (c == '0' \|\| c == 'n' \|\| c == 'N')
773	ntlmv2_support = 0;
774	else if (c == '1' \|\| c == 'y' \|\| c == 'Y')
775	ntlmv2_support = 1;
776
777	return count;
778	}
779
780	static int
781	packet_signing_enabled_read(char page, char *start, off_t off,
782	int count, int eof, void data)
783	{
784	int len;
785
786	len = sprintf(page, "%d\n", sign_CIFS_PDUs);
787
788	len -= off;
789	*start = page + off;
790
791	if (len > count)
792	len = count;
793	else
794	*eof = 1;
795
796	if (len < 0)
797	len = 0;
798
799	return len;
800	}
801	static int
802	packet_signing_enabled_write(struct file file, const char __user buffer,
803	unsigned long count, void *data)
804	{
805	char c;
806	int rc;
807
808	rc = get_user(c, buffer);
809	if (rc)
810	return rc;
811	if (c == '0' \|\| c == 'n' \|\| c == 'N')
812	sign_CIFS_PDUs = 0;
813	else if (c == '1' \|\| c == 'y' \|\| c == 'Y')
814	sign_CIFS_PDUs = 1;
815	else if (c == '2')
816	sign_CIFS_PDUs = 2;
817
818	return count;
819	}
820
821
822	#endif