1da177e4c3
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!
806 lines
18 KiB
C
806 lines
18 KiB
C
/*
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* fs/cifs_debug.c
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*
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* Copyright (C) International Business Machines Corp., 2000,2003
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*
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* Modified by Steve French (sfrench@us.ibm.com)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/fs.h>
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#include <linux/string.h>
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#include <linux/ctype.h>
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#include <linux/module.h>
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#include <linux/proc_fs.h>
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#include <asm/uaccess.h>
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#include "cifspdu.h"
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#include "cifsglob.h"
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#include "cifsproto.h"
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#include "cifs_debug.h"
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void
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cifs_dump_mem(char *label, void *data, int length)
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{
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int i, j;
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int *intptr = data;
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char *charptr = data;
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char buf[10], line[80];
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printk(KERN_DEBUG "%s: dump of %d bytes of data at 0x%p\n\n",
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label, length, data);
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for (i = 0; i < length; i += 16) {
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line[0] = 0;
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for (j = 0; (j < 4) && (i + j * 4 < length); j++) {
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sprintf(buf, " %08x", intptr[i / 4 + j]);
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strcat(line, buf);
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}
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buf[0] = ' ';
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buf[2] = 0;
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for (j = 0; (j < 16) && (i + j < length); j++) {
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buf[1] = isprint(charptr[i + j]) ? charptr[i + j] : '.';
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strcat(line, buf);
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}
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printk(KERN_DEBUG "%s\n", line);
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}
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}
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#ifdef CONFIG_PROC_FS
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static int
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cifs_debug_data_read(char *buf, char **beginBuffer, off_t offset,
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int count, int *eof, void *data)
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{
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struct list_head *tmp;
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struct list_head *tmp1;
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struct mid_q_entry * mid_entry;
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struct cifsSesInfo *ses;
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struct cifsTconInfo *tcon;
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int i;
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int length = 0;
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char * original_buf = buf;
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*beginBuffer = buf + offset;
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length =
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sprintf(buf,
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"Display Internal CIFS Data Structures for Debugging\n"
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"---------------------------------------------------\n");
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buf += length;
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length = sprintf(buf, "Servers:\n");
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buf += length;
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i = 0;
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read_lock(&GlobalSMBSeslock);
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list_for_each(tmp, &GlobalSMBSessionList) {
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i++;
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ses = list_entry(tmp, struct cifsSesInfo, cifsSessionList);
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length =
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sprintf(buf,
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"\n%d) Name: %s Domain: %s Mounts: %d ServerOS: %s \n\tServerNOS: %s\tCapabilities: 0x%x\n\tSMB session status: %d\t",
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i, ses->serverName, ses->serverDomain, atomic_read(&ses->inUse),
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ses->serverOS, ses->serverNOS, ses->capabilities,ses->status);
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buf += length;
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if(ses->server) {
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buf += sprintf(buf, "TCP status: %d\n\tLocal Users To Server: %d SecMode: 0x%x Req Active: %d",
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ses->server->tcpStatus,
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atomic_read(&ses->server->socketUseCount),
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ses->server->secMode,
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atomic_read(&ses->server->inFlight));
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length = sprintf(buf, "\nMIDs: \n");
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buf += length;
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spin_lock(&GlobalMid_Lock);
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list_for_each(tmp1, &ses->server->pending_mid_q) {
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mid_entry = list_entry(tmp1, struct
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mid_q_entry,
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qhead);
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if(mid_entry) {
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length = sprintf(buf,"State: %d com: %d pid: %d tsk: %p mid %d\n",mid_entry->midState,mid_entry->command,mid_entry->pid,mid_entry->tsk,mid_entry->mid);
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buf += length;
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}
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}
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spin_unlock(&GlobalMid_Lock);
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}
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}
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read_unlock(&GlobalSMBSeslock);
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sprintf(buf, "\n");
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buf++;
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length = sprintf(buf, "\nShares:\n");
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buf += length;
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i = 0;
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read_lock(&GlobalSMBSeslock);
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list_for_each(tmp, &GlobalTreeConnectionList) {
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__u32 dev_type;
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i++;
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tcon = list_entry(tmp, struct cifsTconInfo, cifsConnectionList);
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dev_type = le32_to_cpu(tcon->fsDevInfo.DeviceType);
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length =
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sprintf(buf,
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"\n%d) %s Uses: %d Type: %s Characteristics: 0x%x Attributes: 0x%x\nPathComponentMax: %d Status: %d",
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i, tcon->treeName,
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atomic_read(&tcon->useCount),
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tcon->nativeFileSystem,
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le32_to_cpu(tcon->fsDevInfo.DeviceCharacteristics),
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le32_to_cpu(tcon->fsAttrInfo.Attributes),
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le32_to_cpu(tcon->fsAttrInfo.MaxPathNameComponentLength),
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tcon->tidStatus);
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buf += length;
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if (dev_type == FILE_DEVICE_DISK)
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length = sprintf(buf, " type: DISK ");
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else if (dev_type == FILE_DEVICE_CD_ROM)
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length = sprintf(buf, " type: CDROM ");
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else
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length =
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sprintf(buf, " type: %d ", dev_type);
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buf += length;
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if(tcon->tidStatus == CifsNeedReconnect) {
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buf += sprintf(buf, "\tDISCONNECTED ");
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length += 14;
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}
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}
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read_unlock(&GlobalSMBSeslock);
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length = sprintf(buf, "\n");
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buf += length;
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/* BB add code to dump additional info such as TCP session info now */
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/* Now calculate total size of returned data */
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length = buf - original_buf;
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if(offset + count >= length)
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*eof = 1;
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if(length < offset) {
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*eof = 1;
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return 0;
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} else {
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length = length - offset;
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}
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if (length > count)
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length = count;
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return length;
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}
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#ifdef CONFIG_CIFS_STATS
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static int
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cifs_stats_read(char *buf, char **beginBuffer, off_t offset,
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int count, int *eof, void *data)
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{
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int item_length,i,length;
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struct list_head *tmp;
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struct cifsTconInfo *tcon;
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*beginBuffer = buf + offset;
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length = sprintf(buf,
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"Resources in use\nCIFS Session: %d\n",
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sesInfoAllocCount.counter);
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buf += length;
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item_length =
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sprintf(buf,"Share (unique mount targets): %d\n",
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tconInfoAllocCount.counter);
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length += item_length;
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buf += item_length;
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item_length =
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sprintf(buf,"SMB Request/Response Buffer: %d Pool size: %d\n",
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bufAllocCount.counter,cifs_min_rcv + tcpSesAllocCount.counter);
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length += item_length;
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buf += item_length;
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item_length =
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sprintf(buf,"SMB Small Req/Resp Buffer: %d Pool size: %d\n",
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smBufAllocCount.counter,cifs_min_small);
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length += item_length;
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buf += item_length;
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item_length =
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sprintf(buf,"Operations (MIDs): %d\n",
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midCount.counter);
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length += item_length;
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buf += item_length;
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item_length = sprintf(buf,
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"\n%d session %d share reconnects\n",
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tcpSesReconnectCount.counter,tconInfoReconnectCount.counter);
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length += item_length;
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buf += item_length;
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item_length = sprintf(buf,
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"Total vfs operations: %d maximum at one time: %d\n",
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GlobalCurrentXid,GlobalMaxActiveXid);
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length += item_length;
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buf += item_length;
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i = 0;
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read_lock(&GlobalSMBSeslock);
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list_for_each(tmp, &GlobalTreeConnectionList) {
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i++;
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tcon = list_entry(tmp, struct cifsTconInfo, cifsConnectionList);
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item_length = sprintf(buf,"\n%d) %s",i, tcon->treeName);
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buf += item_length;
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length += item_length;
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if(tcon->tidStatus == CifsNeedReconnect) {
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buf += sprintf(buf, "\tDISCONNECTED ");
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length += 14;
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}
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item_length = sprintf(buf,"\nSMBs: %d Oplock Breaks: %d",
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atomic_read(&tcon->num_smbs_sent),
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atomic_read(&tcon->num_oplock_brks));
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buf += item_length;
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length += item_length;
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item_length = sprintf(buf,"\nReads: %d Bytes %lld",
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atomic_read(&tcon->num_reads),
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(long long)(tcon->bytes_read));
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buf += item_length;
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length += item_length;
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item_length = sprintf(buf,"\nWrites: %d Bytes: %lld",
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atomic_read(&tcon->num_writes),
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(long long)(tcon->bytes_written));
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buf += item_length;
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length += item_length;
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item_length = sprintf(buf,
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"\nOpens: %d Deletes: %d\nMkdirs: %d Rmdirs: %d",
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atomic_read(&tcon->num_opens),
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atomic_read(&tcon->num_deletes),
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atomic_read(&tcon->num_mkdirs),
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atomic_read(&tcon->num_rmdirs));
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buf += item_length;
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length += item_length;
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item_length = sprintf(buf,
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"\nRenames: %d T2 Renames %d",
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atomic_read(&tcon->num_renames),
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atomic_read(&tcon->num_t2renames));
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buf += item_length;
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length += item_length;
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}
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read_unlock(&GlobalSMBSeslock);
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buf += sprintf(buf,"\n");
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length++;
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if(offset + count >= length)
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*eof = 1;
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if(length < offset) {
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*eof = 1;
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return 0;
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} else {
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length = length - offset;
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}
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if (length > count)
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length = count;
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return length;
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}
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#endif
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static struct proc_dir_entry *proc_fs_cifs;
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read_proc_t cifs_txanchor_read;
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static read_proc_t cifsFYI_read;
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static write_proc_t cifsFYI_write;
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static read_proc_t oplockEnabled_read;
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static write_proc_t oplockEnabled_write;
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static read_proc_t lookupFlag_read;
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static write_proc_t lookupFlag_write;
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static read_proc_t traceSMB_read;
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static write_proc_t traceSMB_write;
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static read_proc_t multiuser_mount_read;
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static write_proc_t multiuser_mount_write;
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static read_proc_t extended_security_read;
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static write_proc_t extended_security_write;
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static read_proc_t ntlmv2_enabled_read;
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static write_proc_t ntlmv2_enabled_write;
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static read_proc_t packet_signing_enabled_read;
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static write_proc_t packet_signing_enabled_write;
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static read_proc_t quotaEnabled_read;
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static write_proc_t quotaEnabled_write;
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static read_proc_t linuxExtensionsEnabled_read;
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static write_proc_t linuxExtensionsEnabled_write;
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void
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cifs_proc_init(void)
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{
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struct proc_dir_entry *pde;
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proc_fs_cifs = proc_mkdir("cifs", proc_root_fs);
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if (proc_fs_cifs == NULL)
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return;
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proc_fs_cifs->owner = THIS_MODULE;
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create_proc_read_entry("DebugData", 0, proc_fs_cifs,
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cifs_debug_data_read, NULL);
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#ifdef CONFIG_CIFS_STATS
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create_proc_read_entry("Stats", 0, proc_fs_cifs,
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cifs_stats_read, NULL);
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#endif
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pde = create_proc_read_entry("cifsFYI", 0, proc_fs_cifs,
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cifsFYI_read, NULL);
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if (pde)
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pde->write_proc = cifsFYI_write;
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pde =
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create_proc_read_entry("traceSMB", 0, proc_fs_cifs,
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traceSMB_read, NULL);
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if (pde)
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pde->write_proc = traceSMB_write;
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pde = create_proc_read_entry("OplockEnabled", 0, proc_fs_cifs,
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oplockEnabled_read, NULL);
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if (pde)
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pde->write_proc = oplockEnabled_write;
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pde = create_proc_read_entry("ReenableOldCifsReaddirCode", 0, proc_fs_cifs,
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quotaEnabled_read, NULL);
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if (pde)
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pde->write_proc = quotaEnabled_write;
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pde = create_proc_read_entry("LinuxExtensionsEnabled", 0, proc_fs_cifs,
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linuxExtensionsEnabled_read, NULL);
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if (pde)
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pde->write_proc = linuxExtensionsEnabled_write;
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pde =
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create_proc_read_entry("MultiuserMount", 0, proc_fs_cifs,
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multiuser_mount_read, NULL);
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if (pde)
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pde->write_proc = multiuser_mount_write;
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pde =
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create_proc_read_entry("ExtendedSecurity", 0, proc_fs_cifs,
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extended_security_read, NULL);
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if (pde)
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pde->write_proc = extended_security_write;
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pde =
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create_proc_read_entry("LookupCacheEnabled", 0, proc_fs_cifs,
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lookupFlag_read, NULL);
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if (pde)
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pde->write_proc = lookupFlag_write;
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pde =
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create_proc_read_entry("NTLMV2Enabled", 0, proc_fs_cifs,
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ntlmv2_enabled_read, NULL);
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if (pde)
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pde->write_proc = ntlmv2_enabled_write;
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pde =
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create_proc_read_entry("PacketSigningEnabled", 0, proc_fs_cifs,
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packet_signing_enabled_read, NULL);
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if (pde)
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pde->write_proc = packet_signing_enabled_write;
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}
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void
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cifs_proc_clean(void)
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{
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if (proc_fs_cifs == NULL)
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return;
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remove_proc_entry("DebugData", proc_fs_cifs);
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remove_proc_entry("cifsFYI", proc_fs_cifs);
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remove_proc_entry("traceSMB", proc_fs_cifs);
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#ifdef CONFIG_CIFS_STATS
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remove_proc_entry("Stats", proc_fs_cifs);
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#endif
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remove_proc_entry("MultiuserMount", proc_fs_cifs);
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remove_proc_entry("OplockEnabled", proc_fs_cifs);
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remove_proc_entry("NTLMV2Enabled",proc_fs_cifs);
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remove_proc_entry("ExtendedSecurity",proc_fs_cifs);
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remove_proc_entry("PacketSigningEnabled",proc_fs_cifs);
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remove_proc_entry("LinuxExtensionsEnabled",proc_fs_cifs);
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remove_proc_entry("ReenableOldCifsReaddirCode",proc_fs_cifs);
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remove_proc_entry("LookupCacheEnabled",proc_fs_cifs);
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remove_proc_entry("cifs", proc_root_fs);
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}
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static int
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cifsFYI_read(char *page, char **start, off_t off, int count,
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int *eof, void *data)
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{
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int len;
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len = sprintf(page, "%d\n", cifsFYI);
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len -= off;
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*start = page + off;
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if (len > count)
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len = count;
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else
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*eof = 1;
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if (len < 0)
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len = 0;
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return len;
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}
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static int
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cifsFYI_write(struct file *file, const char __user *buffer,
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unsigned long count, void *data)
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{
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char c;
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int rc;
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rc = get_user(c, buffer);
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if (rc)
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return rc;
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if (c == '0' || c == 'n' || c == 'N')
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cifsFYI = 0;
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else if (c == '1' || c == 'y' || c == 'Y')
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cifsFYI = 1;
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return count;
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}
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static int
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oplockEnabled_read(char *page, char **start, off_t off,
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int count, int *eof, void *data)
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{
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int len;
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len = sprintf(page, "%d\n", oplockEnabled);
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len -= off;
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*start = page + off;
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if (len > count)
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len = count;
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else
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*eof = 1;
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if (len < 0)
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len = 0;
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return len;
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}
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static int
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oplockEnabled_write(struct file *file, const char __user *buffer,
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unsigned long count, void *data)
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{
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char c;
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int rc;
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rc = get_user(c, buffer);
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if (rc)
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return rc;
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if (c == '0' || c == 'n' || c == 'N')
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oplockEnabled = 0;
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else if (c == '1' || c == 'y' || c == 'Y')
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oplockEnabled = 1;
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return count;
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}
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static int
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quotaEnabled_read(char *page, char **start, off_t off,
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int count, int *eof, void *data)
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{
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int len;
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len = sprintf(page, "%d\n", experimEnabled);
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/* could also check if quotas are enabled in kernel
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as a whole first */
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len -= off;
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*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
|