unimore/kernel-hacking-2024-linux-steffo
unimore/kernel-hacking-2024-linux-steffo
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6

Browse source 
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  [CIFS] CIFS should honour umask
  [CIFS] Missing flag on negprot needed for some servers to force packet signing
  [CIFS] whitespace cleanup part 2
  [CIFS] whitespace cleanup
  [CIFS] fix mempool destroy done in wrong order in cifs error path
  [CIFS] typo in previous patch
  [CIFS] Fix oops on failed cifs mount (in kthread_stop)
This commit is contained in:
Linus Torvalds 2007-06-11 11:39:25 -07:00
commit 3e2ce4dae9
10 changed files with 283 additions and 265 deletions
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248
fs/cifs/cifs_debug.c
View file

@ -7,16 +7,16 @@
*
* 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
* 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
* 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>
@ -39,7 +39,7 @@ cifs_dump_mem(char *label, void *data, int length)
char *charptr = data;
char buf[10], line[80];
printk(KERN_DEBUG "%s: dump of %d bytes of data at 0x%p\n",
printk(KERN_DEBUG "%s: dump of %d bytes of data at 0x%p\n",
label, length, data);
for (i = 0; i < length; i += 16) {
line[0] = 0;
@ -60,10 +60,10 @@ cifs_dump_mem(char *label, void *data, int length)
#ifdef CONFIG_CIFS_DEBUG2
void cifs_dump_detail(struct smb_hdr * smb)
{
cERROR(1,("Cmd: %d Err: 0x%x Flags: 0x%x Flgs2: 0x%x Mid: %d Pid: %d",
cERROR(1, ("Cmd: %d Err: 0x%x Flags: 0x%x Flgs2: 0x%x Mid: %d Pid: %d",
smb->Command, smb->Status.CifsError,
smb->Flags, smb->Flags2, smb->Mid, smb->Pid));
cERROR(1,("smb buf %p len %d", smb, smbCalcSize_LE(smb)));
cERROR(1, ("smb buf %p len %d", smb, smbCalcSize_LE(smb)));
}
@ -72,36 +72,35 @@ void cifs_dump_mids(struct TCP_Server_Info * server)
struct list_head *tmp;
struct mid_q_entry * mid_entry;
if(server == NULL)
if (server == NULL)
return;
cERROR(1,("Dump pending requests:"));
cERROR(1, ("Dump pending requests:"));
spin_lock(&GlobalMid_Lock);
list_for_each(tmp, &server->pending_mid_q) {
mid_entry = list_entry(tmp, struct mid_q_entry, qhead);
if(mid_entry) {
cERROR(1,("State: %d Cmd: %d Pid: %d Tsk: %p Mid %d",
if (mid_entry) {
cERROR(1, ("State: %d Cmd: %d Pid: %d Tsk: %p Mid %d",
mid_entry->midState,
(int)mid_entry->command,
mid_entry->pid,
mid_entry->tsk,
mid_entry->mid));
#ifdef CONFIG_CIFS_STATS2
cERROR(1,("IsLarge: %d buf: %p time rcv: %ld now: %ld",
cERROR(1, ("IsLarge: %d buf: %p time rcv: %ld now: %ld",
mid_entry->largeBuf,
mid_entry->resp_buf,
mid_entry->when_received,
jiffies));
#endif /* STATS2 */
cERROR(1,("IsMult: %d IsEnd: %d", mid_entry->multiRsp,
cERROR(1, ("IsMult: %d IsEnd: %d", mid_entry->multiRsp,
mid_entry->multiEnd));
if(mid_entry->resp_buf) {
if (mid_entry->resp_buf) {
cifs_dump_detail(mid_entry->resp_buf);
cifs_dump_mem("existing buf: ",
mid_entry->resp_buf,
62 /* fixme */);
}
}
}
spin_unlock(&GlobalMid_Lock);
@ -129,9 +128,10 @@ cifs_debug_data_read(char *buf, char **beginBuffer, off_t offset,
"Display Internal CIFS Data Structures for Debugging\n"
"---------------------------------------------------\n");
buf += length;
length = sprintf(buf,"CIFS Version %s\n",CIFS_VERSION);
length = sprintf(buf, "CIFS Version %s\n", CIFS_VERSION);
buf += length;
length = sprintf(buf,"Active VFS Requests: %d\n", GlobalTotalActiveXid);
length = sprintf(buf,
"Active VFS Requests: %d\n", GlobalTotalActiveXid);
buf += length;
length = sprintf(buf, "Servers:");
buf += length;
@ -141,7 +141,7 @@ cifs_debug_data_read(char *buf, char **beginBuffer, off_t offset,
list_for_each(tmp, &GlobalSMBSessionList) {
i++;
ses = list_entry(tmp, struct cifsSesInfo, cifsSessionList);
if((ses->serverDomain == NULL) || (ses->serverOS == NULL) ||
if ((ses->serverDomain == NULL) || (ses->serverOS == NULL) ||
(ses->serverNOS == NULL)) {
buf += sprintf(buf, "\nentry for %s not fully "
"displayed\n\t", ses->serverName);
@ -149,15 +149,18 @@ cifs_debug_data_read(char *buf, char **beginBuffer, off_t offset,
} else {
length =
sprintf(buf,
"\n%d) Name: %s Domain: %s Mounts: %d OS: %s \n\tNOS: %s\tCapability: 0x%x\n\tSMB session status: %d\t",
"\n%d) Name: %s Domain: %s Mounts: %d OS:"
" %s \n\tNOS: %s\tCapability: 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);
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 On Wire: %d",
if (ses->server) {
buf += sprintf(buf, "TCP status: %d\n\tLocal Users To "
"Server: %d SecMode: 0x%x Req On Wire: %d",
ses->server->tcpStatus,
atomic_read(&ses->server->socketUseCount),
ses->server->secMode,
@ -165,7 +168,7 @@ cifs_debug_data_read(char *buf, char **beginBuffer, off_t offset,
#ifdef CONFIG_CIFS_STATS2
buf += sprintf(buf, " In Send: %d In MaxReq Wait: %d",
atomic_read(&ses->server->inSend),
atomic_read(&ses->server->inSend),
atomic_read(&ses->server->num_waiters));
#endif
@ -177,17 +180,19 @@ cifs_debug_data_read(char *buf, char **beginBuffer, off_t offset,
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);
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);
spin_unlock(&GlobalMid_Lock);
}
}
@ -207,7 +212,8 @@ cifs_debug_data_read(char *buf, char **beginBuffer, off_t offset,
dev_type = le32_to_cpu(tcon->fsDevInfo.DeviceType);
length =
sprintf(buf,
"\n%d) %s Uses: %d Type: %s DevInfo: 0x%x Attributes: 0x%x\nPathComponentMax: %d Status: %d",
"\n%d) %s Uses: %d Type: %s DevInfo: 0x%x "
"Attributes: 0x%x\nPathComponentMax: %d Status: %d",
i, tcon->treeName,
atomic_read(&tcon->useCount),
tcon->nativeFileSystem,
@ -215,7 +221,7 @@ cifs_debug_data_read(char *buf, char **beginBuffer, off_t offset,
le32_to_cpu(tcon->fsAttrInfo.Attributes),
le32_to_cpu(tcon->fsAttrInfo.MaxPathNameComponentLength),
tcon->tidStatus);
buf += length;
buf += length;
if (dev_type == FILE_DEVICE_DISK)
length = sprintf(buf, " type: DISK ");
else if (dev_type == FILE_DEVICE_CD_ROM)
@ -224,7 +230,7 @@ cifs_debug_data_read(char *buf, char **beginBuffer, off_t offset,
length =
sprintf(buf, " type: %d ", dev_type);
buf += length;
if(tcon->tidStatus == CifsNeedReconnect) {
if (tcon->tidStatus == CifsNeedReconnect) {
buf += sprintf(buf, "\tDISCONNECTED ");
length += 14;
}
@ -238,9 +244,9 @@ cifs_debug_data_read(char *buf, char **beginBuffer, off_t offset,
/* Now calculate total size of returned data */
length = buf - original_buf;
if(offset + count >= length)
if (offset + count >= length)
*eof = 1;
if(length < offset) {
if (length < offset) {
*eof = 1;
return 0;
} else {
@ -256,18 +262,18 @@ cifs_debug_data_read(char *buf, char **beginBuffer, off_t offset,
static int
cifs_stats_write(struct file *file, const char __user *buffer,
unsigned long count, void *data)
unsigned long count, void *data)
{
char c;
int rc;
char c;
int rc;
struct list_head *tmp;
struct cifsTconInfo *tcon;
rc = get_user(c, buffer);
if (rc)
return rc;
rc = get_user(c, buffer);
if (rc)
return rc;
if (c == '1' || c == 'y' || c == 'Y' || c == '0') {
if (c == '1' || c == 'y' || c == 'Y' || c == '0') {
read_lock(&GlobalSMBSeslock);
#ifdef CONFIG_CIFS_STATS2
atomic_set(&totBufAllocCount, 0);
@ -297,14 +303,14 @@ cifs_stats_write(struct file *file, const char __user *buffer,
read_unlock(&GlobalSMBSeslock);
}
return count;
return count;
}
static int
cifs_stats_read(char *buf, char **beginBuffer, off_t offset,
int count, int *eof, void *data)
{
int item_length,i,length;
int item_length, i, length;
struct list_head *tmp;
struct cifsTconInfo *tcon;
@ -314,44 +320,44 @@ cifs_stats_read(char *buf, char **beginBuffer, off_t offset,
"Resources in use\nCIFS Session: %d\n",
sesInfoAllocCount.counter);
buf += length;
item_length =
sprintf(buf,"Share (unique mount targets): %d\n",
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",
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);
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;
#ifdef CONFIG_CIFS_STATS2
item_length = sprintf(buf, "Total Large %d Small %d Allocations\n",
item_length = sprintf(buf, "Total Large %d Small %d Allocations\n",
atomic_read(&totBufAllocCount),
atomic_read(&totSmBufAllocCount));
atomic_read(&totSmBufAllocCount));
length += item_length;
buf += item_length;
#endif /* CONFIG_CIFS_STATS2 */
item_length =
sprintf(buf,"Operations (MIDs): %d\n",
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);
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);
GlobalCurrentXid, GlobalMaxActiveXid);
length += item_length;
buf += item_length;
@ -360,10 +366,10 @@ cifs_stats_read(char *buf, char **beginBuffer, off_t offset,
list_for_each(tmp, &GlobalTreeConnectionList) {
i++;
tcon = list_entry(tmp, struct cifsTconInfo, cifsConnectionList);
item_length = sprintf(buf,"\n%d) %s",i, tcon->treeName);
item_length = sprintf(buf, "\n%d) %s", i, tcon->treeName);
buf += item_length;
length += item_length;
if(tcon->tidStatus == CifsNeedReconnect) {
if (tcon->tidStatus == CifsNeedReconnect) {
buf += sprintf(buf, "\tDISCONNECTED ");
length += 14;
}
@ -380,15 +386,15 @@ cifs_stats_read(char *buf, char **beginBuffer, off_t offset,
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,
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_locks),
atomic_read(&tcon->num_hardlinks),
atomic_read(&tcon->num_symlinks));
buf += item_length;
length += item_length;
buf += item_length;
length += item_length;
item_length = sprintf(buf, "\nOpens: %d Closes: %d Deletes: %d",
atomic_read(&tcon->num_opens),
@ -415,12 +421,12 @@ cifs_stats_read(char *buf, char **beginBuffer, off_t offset,
}
read_unlock(&GlobalSMBSeslock);
buf += sprintf(buf,"\n");
buf += sprintf(buf, "\n");
length++;
if(offset + count >= length)
if (offset + count >= length)
*eof = 1;
if(length < offset) {
if (length < offset) {
*eof = 1;
return 0;
} else {
@ -428,7 +434,7 @@ cifs_stats_read(char *buf, char **beginBuffer, off_t offset,
}
if (length > count)
length = count;
return length;
}
#endif
@ -547,11 +553,11 @@ cifs_proc_clean(void)
remove_proc_entry("MultiuserMount", proc_fs_cifs);
remove_proc_entry("OplockEnabled", proc_fs_cifs);
/* remove_proc_entry("NTLMV2Enabled",proc_fs_cifs); */
remove_proc_entry("SecurityFlags",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("SecurityFlags", 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);
}
@ -590,7 +596,7 @@ cifsFYI_write(struct file *file, const char __user *buffer,
cifsFYI = 0;
else if (c == '1' || c == 'y' || c == 'Y')
cifsFYI = 1;
else if((c > '1') && (c <= '9'))
else if ((c > '1') && (c <= '9'))
cifsFYI = (int) (c - '0'); /* see cifs_debug.h for meanings */
return count;
@ -637,28 +643,28 @@ oplockEnabled_write(struct file *file, const char __user *buffer,
static int
experimEnabled_read(char *page, char **start, off_t off,
int count, int *eof, void *data)
int count, int *eof, void *data)
{
int len;
int len;
len = sprintf(page, "%d\n", experimEnabled);
len = sprintf(page, "%d\n", experimEnabled);
len -= off;
*start = page + off;
len -= off;
*start = page + off;
if (len > count)
len = count;
else
*eof = 1;
if (len > count)
len = count;
else
*eof = 1;
if (len < 0)
len = 0;
if (len < 0)
len = 0;
return len;
return len;
}
static int
experimEnabled_write(struct file *file, const char __user *buffer,
unsigned long count, void *data)
unsigned long count, void *data)
{
char c;
int rc;
@ -678,46 +684,46 @@ experimEnabled_write(struct file *file, const char __user *buffer,
static int
linuxExtensionsEnabled_read(char *page, char **start, off_t off,
int count, int *eof, void *data)
int count, int *eof, void *data)
{
int len;
int len;
len = sprintf(page, "%d\n", linuxExtEnabled);
len -= off;
*start = page + off;
len = sprintf(page, "%d\n", linuxExtEnabled);
len -= off;
*start = page + off;
if (len > count)
len = count;
else
*eof = 1;
if (len > count)
len = count;
else
*eof = 1;
if (len < 0)
len = 0;
if (len < 0)
len = 0;
return len;
return len;
}
static int
linuxExtensionsEnabled_write(struct file *file, const char __user *buffer,
unsigned long count, void *data)
unsigned long count, void *data)
{
char c;
int rc;
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;
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;
return count;
}
static int
lookupFlag_read(char *page, char **start, off_t off,
int count, int *eof, void *data)
int count, int *eof, void *data)
{
int len;
@ -860,15 +866,15 @@ security_flags_write(struct file *file, const char __user *buffer,
char flags_string[12];
char c;
if((count < 1) || (count > 11))
if ((count < 1) || (count > 11))
return -EINVAL;
memset(flags_string, 0, 12);
if(copy_from_user(flags_string, buffer, count))
if (copy_from_user(flags_string, buffer, count))
return -EFAULT;
if(count < 3) {
if (count < 3) {
/* single char or single char followed by null */
c = flags_string[0];
if (c == '0' || c == 'n' || c == 'N')
@ -881,15 +887,15 @@ security_flags_write(struct file *file, const char __user *buffer,
flags = simple_strtoul(flags_string, NULL, 0);
cFYI(1,("sec flags 0x%x", flags));
cFYI(1, ("sec flags 0x%x", flags));
if(flags <= 0) {
cERROR(1,("invalid security flags %s",flags_string));
if (flags <= 0) {
cERROR(1, ("invalid security flags %s", flags_string));
return -EINVAL;
}
if(flags & ~CIFSSEC_MASK) {
cERROR(1,("attempt to set unsupported security flags 0x%x",
if (flags & ~CIFSSEC_MASK) {
cERROR(1, ("attempt to set unsupported security flags 0x%x",
flags & ~CIFSSEC_MASK));
return -EINVAL;
}

12
fs/cifs/cifs_unicode.c
View file

@ -6,16 +6,16 @@
*
* 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
* 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
* 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>
@ -32,7 +32,7 @@
*
*/
int
cifs_strfromUCS_le(char *to, const __le16 * from,
cifs_strfromUCS_le(char *to, const __le16 * from,
int len, const struct nls_table *codepage)
{
int i;
@ -66,7 +66,7 @@ cifs_strtoUCS(__le16 * to, const char *from, int len,
{
int charlen;
int i;
wchar_t * wchar_to = (wchar_t *)to; /* needed to quiet sparse */
wchar_t * wchar_to = (wchar_t *)to; /* needed to quiet sparse */
for (i = 0; len && *from; i++, from += charlen, len -= charlen) {
@ -79,7 +79,7 @@ cifs_strtoUCS(__le16 * to, const char *from, int len,
/* A question mark */
to[i] = cpu_to_le16(0x003f);
charlen = 1;
} else
} else
to[i] = cpu_to_le16(wchar_to[i]);
}

2
fs/cifs/cifsfs.c
View file

@ -825,8 +825,8 @@ cifs_init_mids(void)
sizeof (struct oplock_q_entry), 0,
SLAB_HWCACHE_ALIGN, NULL, NULL);
if (cifs_oplock_cachep == NULL) {
kmem_cache_destroy(cifs_mid_cachep);
mempool_destroy(cifs_mid_poolp);
kmem_cache_destroy(cifs_mid_cachep);
return -ENOMEM;
}

4
fs/cifs/cifssmb.c
View file

@ -433,8 +433,8 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses)
cFYI(1,("secFlags 0x%x",secFlags));
pSMB->hdr.Mid = GetNextMid(server);
pSMB->hdr.Flags2 |= SMBFLG2_UNICODE;
if((secFlags & CIFSSEC_MUST_KRB5) == CIFSSEC_MUST_KRB5)
pSMB->hdr.Flags2 |= (SMBFLG2_UNICODE | SMBFLG2_ERR_STATUS);
if ((secFlags & CIFSSEC_MUST_KRB5) == CIFSSEC_MUST_KRB5)
pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC;
count = 0;

16
fs/cifs/connect.c
View file

@ -2069,8 +2069,15 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
srvTcp->tcpStatus = CifsExiting;
spin_unlock(&GlobalMid_Lock);
if (srvTcp->tsk) {
struct task_struct *tsk;
/* If we could verify that kthread_stop would
always wake up processes blocked in
tcp in recv_mesg then we could remove the
send_sig call */
send_sig(SIGKILL,srvTcp->tsk,1);
kthread_stop(srvTcp->tsk);
tsk = srvTcp->tsk;
if(tsk)
kthread_stop(tsk);
}
}
/* If find_unc succeeded then rc == 0 so we can not end */
@ -2085,8 +2092,11 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
/* if the socketUseCount is now zero */
if ((temp_rc == -ESHUTDOWN) &&
(pSesInfo->server) && (pSesInfo->server->tsk)) {
struct task_struct *tsk;
send_sig(SIGKILL,pSesInfo->server->tsk,1);
kthread_stop(pSesInfo->server->tsk);
tsk = pSesInfo->server->tsk;
if (tsk)
kthread_stop(tsk);
}
} else
cFYI(1, ("No session or bad tcon"));
@ -3334,7 +3344,7 @@ cifs_umount(struct super_block *sb, struct cifs_sb_info *cifs_sb)
return 0;
} else if (rc == -ESHUTDOWN) {
cFYI(1,("Waking up socket by sending it signal"));
if(cifsd_task) {
if (cifsd_task) {
send_sig(SIGKILL,cifsd_task,1);
kthread_stop(cifsd_task);
}

184
fs/cifs/dir.c
View file

@ -2,7 +2,7 @@
* fs/cifs/dir.c
*
* vfs operations that deal with dentries
*
*
* Copyright (C) International Business Machines Corp., 2002,2005
* Author(s): Steve French (sfrench@us.ibm.com)
*
@ -34,11 +34,12 @@
static void
renew_parental_timestamps(struct dentry *direntry)
{
/* BB check if there is a way to get the kernel to do this or if we really need this */
/* BB check if there is a way to get the kernel to do this or if we
really need this */
do {
direntry->d_time = jiffies;
direntry = direntry->d_parent;
} while (!IS_ROOT(direntry));
} while (!IS_ROOT(direntry));
}
/* Note: caller must free return buffer */
@ -51,7 +52,7 @@ build_path_from_dentry(struct dentry *direntry)
char *full_path;
char dirsep;
if(direntry == NULL)
if (direntry == NULL)
return NULL; /* not much we can do if dentry is freed and
we need to reopen the file after it was closed implicitly
when the server crashed */
@ -59,18 +60,18 @@ build_path_from_dentry(struct dentry *direntry)
dirsep = CIFS_DIR_SEP(CIFS_SB(direntry->d_sb));
pplen = CIFS_SB(direntry->d_sb)->prepathlen;
cifs_bp_rename_retry:
namelen = pplen;
namelen = pplen;
for (temp = direntry; !IS_ROOT(temp);) {
namelen += (1 + temp->d_name.len);
temp = temp->d_parent;
if(temp == NULL) {
cERROR(1,("corrupt dentry"));
if (temp == NULL) {
cERROR(1, ("corrupt dentry"));
return NULL;
}
}
full_path = kmalloc(namelen+1, GFP_KERNEL);
if(full_path == NULL)
if (full_path == NULL)
return full_path;
full_path[namelen] = 0; /* trailing null */
for (temp = direntry; !IS_ROOT(temp);) {
@ -84,8 +85,8 @@ build_path_from_dentry(struct dentry *direntry)
cFYI(0, ("name: %s", full_path + namelen));
}
temp = temp->d_parent;
if(temp == NULL) {
cERROR(1,("corrupt dentry"));
if (temp == NULL) {
cERROR(1, ("corrupt dentry"));
kfree(full_path);
return NULL;
}
@ -94,7 +95,7 @@ build_path_from_dentry(struct dentry *direntry)
cERROR(1,
("did not end path lookup where expected namelen is %d",
namelen));
/* presumably this is only possible if racing with a rename
/* presumably this is only possible if racing with a rename
of one of the parent directories (we can not lock the dentries
above us to prevent this, but retrying should be harmless) */
kfree(full_path);
@ -106,7 +107,7 @@ build_path_from_dentry(struct dentry *direntry)
since the '\' is a valid posix character so we can not switch
those safely to '/' if any are found in the middle of the prepath */
/* BB test paths to Windows with '/' in the midst of prepath */
strncpy(full_path,CIFS_SB(direntry->d_sb)->prepath,pplen);
strncpy(full_path, CIFS_SB(direntry->d_sb)->prepath, pplen);
return full_path;
}
@ -147,12 +148,12 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
pTcon = cifs_sb->tcon;
full_path = build_path_from_dentry(direntry);
if(full_path == NULL) {
if (full_path == NULL) {
FreeXid(xid);
return -ENOMEM;
}
if(nd && (nd->flags & LOOKUP_OPEN)) {
if (nd && (nd->flags & LOOKUP_OPEN)) {
int oflags = nd->intent.open.flags;
desiredAccess = 0;
@ -164,28 +165,29 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
write_only = TRUE;
}
if((oflags & (O_CREAT | O_EXCL)) == (O_CREAT | O_EXCL))
if ((oflags & (O_CREAT | O_EXCL)) == (O_CREAT | O_EXCL))
disposition = FILE_CREATE;
else if((oflags & (O_CREAT | O_TRUNC)) == (O_CREAT | O_TRUNC))
else if ((oflags & (O_CREAT | O_TRUNC)) == (O_CREAT | O_TRUNC))
disposition = FILE_OVERWRITE_IF;
else if((oflags & O_CREAT) == O_CREAT)
else if ((oflags & O_CREAT) == O_CREAT)
disposition = FILE_OPEN_IF;
else {
cFYI(1,("Create flag not set in create function"));
cFYI(1, ("Create flag not set in create function"));
}
}
/* BB add processing to set equivalent of mode - e.g. via CreateX with ACLs */
/* BB add processing to set equivalent of mode - e.g. via CreateX with
ACLs */
if (oplockEnabled)
oplock = REQ_OPLOCK;
buf = kmalloc(sizeof(FILE_ALL_INFO),GFP_KERNEL);
if(buf == NULL) {
buf = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL);
if (buf == NULL) {
kfree(full_path);
FreeXid(xid);
return -ENOMEM;
}
if (cifs_sb->tcon->ses->capabilities & CAP_NT_SMBS)
if (cifs_sb->tcon->ses->capabilities & CAP_NT_SMBS)
rc = CIFSSMBOpen(xid, pTcon, full_path, disposition,
desiredAccess, CREATE_NOT_DIR,
&fileHandle, &oplock, buf, cifs_sb->local_nls,
@ -193,27 +195,28 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
else
rc = -EIO; /* no NT SMB support fall into legacy open below */
if(rc == -EIO) {
if (rc == -EIO) {
/* old server, retry the open legacy style */
rc = SMBLegacyOpen(xid, pTcon, full_path, disposition,
desiredAccess, CREATE_NOT_DIR,
&fileHandle, &oplock, buf, cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
}
}
if (rc) {
cFYI(1, ("cifs_create returned 0x%x", rc));
} else {
/* If Open reported that we actually created a file
then we now have to set the mode if possible */
if ((cifs_sb->tcon->ses->capabilities & CAP_UNIX) &&
(oplock & CIFS_CREATE_ACTION))
if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) {
(oplock & CIFS_CREATE_ACTION)) {
mode &= ~current->fs->umask;
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) {
CIFSSMBUnixSetPerms(xid, pTcon, full_path, mode,
(__u64)current->fsuid,
(__u64)current->fsgid,
0 /* dev */,
cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &
cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
} else {
CIFSSMBUnixSetPerms(xid, pTcon, full_path, mode,
@ -221,26 +224,28 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
(__u64)-1,
0 /* dev */,
cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
}
else {
/* BB implement mode setting via Windows security descriptors */
/* eg CIFSSMBWinSetPerms(xid,pTcon,full_path,mode,-1,-1,local_nls);*/
/* could set r/o dos attribute if mode & 0222 == 0 */
} else {
/* BB implement mode setting via Windows security
descriptors e.g. */
/* CIFSSMBWinSetPerms(xid,pTcon,path,mode,-1,-1,nls);*/
/* Could set r/o dos attribute if mode & 0222 == 0 */
}
/* BB server might mask mode so we have to query for Unix case*/
if (pTcon->ses->capabilities & CAP_UNIX)
rc = cifs_get_inode_info_unix(&newinode, full_path,
inode->i_sb,xid);
inode->i_sb, xid);
else {
rc = cifs_get_inode_info(&newinode, full_path,
buf, inode->i_sb,xid);
if(newinode) {
buf, inode->i_sb, xid);
if (newinode) {
newinode->i_mode = mode;
if((oplock & CIFS_CREATE_ACTION) &&
(cifs_sb->mnt_cifs_flags &
if ((oplock & CIFS_CREATE_ACTION) &&
(cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_SET_UID)) {
newinode->i_uid = current->fsuid;
newinode->i_gid = current->fsgid;
@ -259,14 +264,14 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
direntry->d_op = &cifs_dentry_ops;
d_instantiate(direntry, newinode);
}
if((nd->flags & LOOKUP_OPEN) == FALSE) {
if ((nd->flags & LOOKUP_OPEN) == FALSE) {
/* mknod case - do not leave file open */
CIFSSMBClose(xid, pTcon, fileHandle);
} else if(newinode) {
} else if (newinode) {
pCifsFile =
kzalloc(sizeof (struct cifsFileInfo), GFP_KERNEL);
if(pCifsFile == NULL)
if (pCifsFile == NULL)
goto cifs_create_out;
pCifsFile->netfid = fileHandle;
pCifsFile->pid = current->tgid;
@ -276,33 +281,33 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
init_MUTEX(&pCifsFile->fh_sem);
mutex_init(&pCifsFile->lock_mutex);
INIT_LIST_HEAD(&pCifsFile->llist);
atomic_set(&pCifsFile->wrtPending,0);
atomic_set(&pCifsFile->wrtPending, 0);
/* set the following in open now
/* set the following in open now
pCifsFile->pfile = file; */
write_lock(&GlobalSMBSeslock);
list_add(&pCifsFile->tlist,&pTcon->openFileList);
list_add(&pCifsFile->tlist, &pTcon->openFileList);
pCifsInode = CIFS_I(newinode);
if(pCifsInode) {
if (pCifsInode) {
/* if readable file instance put first in list*/
if (write_only == TRUE) {
list_add_tail(&pCifsFile->flist,
list_add_tail(&pCifsFile->flist,
&pCifsInode->openFileList);
} else {
list_add(&pCifsFile->flist,
&pCifsInode->openFileList);
}
if((oplock & 0xF) == OPLOCK_EXCLUSIVE) {
if ((oplock & 0xF) == OPLOCK_EXCLUSIVE) {
pCifsInode->clientCanCacheAll = TRUE;
pCifsInode->clientCanCacheRead = TRUE;
cFYI(1,("Exclusive Oplock for inode %p",
cFYI(1, ("Exclusive Oplock inode %p",
newinode));
} else if((oplock & 0xF) == OPLOCK_READ)
} else if ((oplock & 0xF) == OPLOCK_READ)
pCifsInode->clientCanCacheRead = TRUE;
}
write_unlock(&GlobalSMBSeslock);
}
}
}
cifs_create_out:
kfree(buf);
kfree(full_path);
@ -310,8 +315,8 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
return rc;
}
int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode,
dev_t device_number)
int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode,
dev_t device_number)
{
int rc = -EPERM;
int xid;
@ -329,43 +334,45 @@ int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode,
pTcon = cifs_sb->tcon;
full_path = build_path_from_dentry(direntry);
if(full_path == NULL)
if (full_path == NULL)
rc = -ENOMEM;
else if (pTcon->ses->capabilities & CAP_UNIX) {
if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) {
mode &= ~current->fs->umask;
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) {
rc = CIFSSMBUnixSetPerms(xid, pTcon, full_path,
mode,(__u64)current->fsuid,(__u64)current->fsgid,
mode, (__u64)current->fsuid,
(__u64)current->fsgid,
device_number, cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
} else {
rc = CIFSSMBUnixSetPerms(xid, pTcon,
full_path, mode, (__u64)-1, (__u64)-1,
device_number, cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
}
if(!rc) {
if (!rc) {
rc = cifs_get_inode_info_unix(&newinode, full_path,
inode->i_sb,xid);
inode->i_sb, xid);
if (pTcon->nocase)
direntry->d_op = &cifs_ci_dentry_ops;
else
direntry->d_op = &cifs_dentry_ops;
if(rc == 0)
if (rc == 0)
d_instantiate(direntry, newinode);
}
} else {
if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) {
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) {
int oplock = 0;
u16 fileHandle;
FILE_ALL_INFO * buf;
cFYI(1,("sfu compat create special file"));
cFYI(1, ("sfu compat create special file"));
buf = kmalloc(sizeof(FILE_ALL_INFO),GFP_KERNEL);
if(buf == NULL) {
buf = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL);
if (buf == NULL) {
kfree(full_path);
FreeXid(xid);
return -ENOMEM;
@ -373,39 +380,38 @@ int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode,
rc = CIFSSMBOpen(xid, pTcon, full_path,
FILE_CREATE, /* fail if exists */
GENERIC_WRITE /* BB would
GENERIC_WRITE /* BB would
WRITE_OWNER | WRITE_DAC be better? */,
/* Create a file and set the
file attribute to SYSTEM */
CREATE_NOT_DIR | CREATE_OPTION_SPECIAL,
&fileHandle, &oplock, buf,
cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
/* BB FIXME - add handling for backlevel servers
which need legacy open and check for all
calls to SMBOpen for fallback to
SMBLeagcyOpen */
if(!rc) {
calls to SMBOpen for fallback to SMBLeagcyOpen */
if (!rc) {
/* BB Do not bother to decode buf since no
local inode yet to put timestamps in,
but we can reuse it safely */
int bytes_written;
struct win_dev *pdev;
pdev = (struct win_dev *)buf;
if(S_ISCHR(mode)) {
if (S_ISCHR(mode)) {
memcpy(pdev->type, "IntxCHR", 8);
pdev->major =
cpu_to_le64(MAJOR(device_number));
pdev->minor =
pdev->minor =
cpu_to_le64(MINOR(device_number));
rc = CIFSSMBWrite(xid, pTcon,
fileHandle,
sizeof(struct win_dev),
0, &bytes_written, (char *)pdev,
NULL, 0);
} else if(S_ISBLK(mode)) {
} else if (S_ISBLK(mode)) {
memcpy(pdev->type, "IntxBLK", 8);
pdev->major =
cpu_to_le64(MAJOR(device_number));
@ -432,7 +438,8 @@ int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode,
struct dentry *
cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry, struct nameidata *nd)
cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry,
struct nameidata *nd)
{
int xid;
int rc = 0; /* to get around spurious gcc warning, set to zero here */
@ -447,8 +454,6 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry, struct name
(" parent inode = 0x%p name is: %s and dentry = 0x%p",
parent_dir_inode, direntry->d_name.name, direntry));
/* BB Add check of incoming data - e.g. frame not longer than maximum SMB - let server check the namelen BB */
/* check whether path exists */
cifs_sb = CIFS_SB(parent_dir_inode->i_sb);
@ -472,7 +477,7 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry, struct name
deadlock in the cases (beginning of sys_rename itself)
in which we already have the sb rename sem */
full_path = build_path_from_dentry(direntry);
if(full_path == NULL) {
if (full_path == NULL) {
FreeXid(xid);
return ERR_PTR(-ENOMEM);
}
@ -487,10 +492,10 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry, struct name
if (pTcon->ses->capabilities & CAP_UNIX)
rc = cifs_get_inode_info_unix(&newInode, full_path,
parent_dir_inode->i_sb,xid);
parent_dir_inode->i_sb, xid);
else
rc = cifs_get_inode_info(&newInode, full_path, NULL,
parent_dir_inode->i_sb,xid);
parent_dir_inode->i_sb, xid);
if ((rc == 0) && (newInode != NULL)) {
if (pTcon->nocase)
@ -499,7 +504,7 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry, struct name
direntry->d_op = &cifs_dentry_ops;
d_add(direntry, newInode);
/* since paths are not looked up by component - the parent
/* since paths are not looked up by component - the parent
directories are presumed to be good here */
renew_parental_timestamps(direntry);
@ -511,13 +516,13 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry, struct name
else
direntry->d_op = &cifs_dentry_ops;
d_add(direntry, NULL);
/* if it was once a directory (but how can we tell?) we could do
shrink_dcache_parent(direntry); */
/* if it was once a directory (but how can we tell?) we could do
shrink_dcache_parent(direntry); */
} else {
cERROR(1,("Error 0x%x on cifs_get_inode_info in lookup of %s",
rc,full_path));
/* BB special case check for Access Denied - watch security
exposure of returning dir info implicitly via different rc
cERROR(1, ("Error 0x%x on cifs_get_inode_info in lookup of %s",
rc, full_path));
/* BB special case check for Access Denied - watch security
exposure of returning dir info implicitly via different rc
if file exists or not but no access BB */
}
@ -538,11 +543,11 @@ cifs_d_revalidate(struct dentry *direntry, struct nameidata *nd)
} else {
cFYI(1, ("neg dentry 0x%p name = %s",
direntry, direntry->d_name.name));
if(time_after(jiffies, direntry->d_time + HZ) ||
if (time_after(jiffies, direntry->d_time + HZ) ||
!lookupCacheEnabled) {
d_drop(direntry);
isValid = 0;
}
}
}
return isValid;
@ -559,8 +564,7 @@ cifs_d_revalidate(struct dentry *direntry, struct nameidata *nd)
struct dentry_operations cifs_dentry_ops = {
.d_revalidate = cifs_d_revalidate,
/* d_delete: cifs_d_delete, *//* not needed except for debugging */
/* no need for d_hash, d_compare, d_release, d_iput ... yet. BB confirm this BB */
/* d_delete: cifs_d_delete, */ /* not needed except for debugging */
};
static int cifs_ci_hash(struct dentry *dentry, struct qstr *q)

46
fs/cifs/fcntl.c
View file

@ -2,7 +2,7 @@
* fs/cifs/fcntl.c
*
* vfs operations that deal with the file control API
*
*
* Copyright (C) International Business Machines Corp., 2003,2004
* Author(s): Steve French (sfrench@us.ibm.com)
*
@ -35,35 +35,34 @@ static __u32 convert_to_cifs_notify_flags(unsigned long fcntl_notify_flags)
/* No way on Linux VFS to ask to monitor xattr
changes (and no stream support either */
if(fcntl_notify_flags & DN_ACCESS) {
if (fcntl_notify_flags & DN_ACCESS) {
cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_LAST_ACCESS;
}
if(fcntl_notify_flags & DN_MODIFY) {
if (fcntl_notify_flags & DN_MODIFY) {
/* What does this mean on directories? */
cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_LAST_WRITE |
FILE_NOTIFY_CHANGE_SIZE;
}
if(fcntl_notify_flags & DN_CREATE) {
cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_CREATION |
if (fcntl_notify_flags & DN_CREATE) {
cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_CREATION |
FILE_NOTIFY_CHANGE_LAST_WRITE;
}
if(fcntl_notify_flags & DN_DELETE) {
if (fcntl_notify_flags & DN_DELETE) {
cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_LAST_WRITE;
}
if(fcntl_notify_flags & DN_RENAME) {
if (fcntl_notify_flags & DN_RENAME) {
/* BB review this - checking various server behaviors */
cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_DIR_NAME |
cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_DIR_NAME |
FILE_NOTIFY_CHANGE_FILE_NAME;
}
if(fcntl_notify_flags & DN_ATTRIB) {
cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_SECURITY |
if (fcntl_notify_flags & DN_ATTRIB) {
cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_SECURITY |
FILE_NOTIFY_CHANGE_ATTRIBUTES;
}
/* if(fcntl_notify_flags & DN_MULTISHOT) {
/* if (fcntl_notify_flags & DN_MULTISHOT) {
cifs_ntfy_flags |= ;
} */ /* BB fixme - not sure how to handle this with CIFS yet */
return cifs_ntfy_flags;
}
@ -78,8 +77,7 @@ int cifs_dir_notify(struct file * file, unsigned long arg)
__u32 filter = FILE_NOTIFY_CHANGE_NAME | FILE_NOTIFY_CHANGE_ATTRIBUTES;
__u16 netfid;
if(experimEnabled == 0)
if (experimEnabled == 0)
return 0;
xid = GetXid();
@ -88,21 +86,21 @@ int cifs_dir_notify(struct file * file, unsigned long arg)
full_path = build_path_from_dentry(file->f_path.dentry);
if(full_path == NULL) {
if (full_path == NULL) {
rc = -ENOMEM;
} else {
cFYI(1,("dir notify on file %s Arg 0x%lx",full_path,arg));
rc = CIFSSMBOpen(xid, pTcon, full_path, FILE_OPEN,
cFYI(1, ("dir notify on file %s Arg 0x%lx", full_path, arg));
rc = CIFSSMBOpen(xid, pTcon, full_path, FILE_OPEN,
GENERIC_READ | SYNCHRONIZE, 0 /* create options */,
&netfid, &oplock,NULL, cifs_sb->local_nls,
&netfid, &oplock, NULL, cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
/* BB fixme - add this handle to a notify handle list */
if(rc) {
cFYI(1,("Could not open directory for notify"));
if (rc) {
cFYI(1, ("Could not open directory for notify"));
} else {
filter = convert_to_cifs_notify_flags(arg);
if(filter != 0) {
rc = CIFSSMBNotify(xid, pTcon,
if (filter != 0) {
rc = CIFSSMBNotify(xid, pTcon,
0 /* no subdirs */, netfid,
filter, file, arg & DN_MULTISHOT,
cifs_sb->local_nls);
@ -113,10 +111,10 @@ int cifs_dir_notify(struct file * file, unsigned long arg)
it would close automatically but may be a way
to do it easily when inode freed or when
notify info is cleared/changed */
cFYI(1,("notify rc %d",rc));
cFYI(1, ("notify rc %d", rc));
}
}
FreeXid(xid);
return rc;
}

5
fs/cifs/inode.c
View file

@ -986,7 +986,8 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode)
* failed to get it from the server or was set bogus */
if ((direntry->d_inode) && (direntry->d_inode->i_nlink < 2))
direntry->d_inode->i_nlink = 2;
if (cifs_sb->tcon->ses->capabilities & CAP_UNIX)
if (cifs_sb->tcon->ses->capabilities & CAP_UNIX) {
mode &= ~current->fs->umask;
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) {
CIFSSMBUnixSetPerms(xid, pTcon, full_path,
mode,
@ -1004,7 +1005,7 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode)
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
}
else {
} else {
/* BB to be implemented via Windows secrty descriptors
eg CIFSSMBWinSetPerms(xid, pTcon, full_path, mode,
-1, -1, local_nls); */

29
fs/cifs/ioctl.c
View file

@ -30,7 +30,7 @@
#define CIFS_IOC_CHECKUMOUNT _IO(0xCF, 2)
int cifs_ioctl (struct inode * inode, struct file * filep,
int cifs_ioctl (struct inode * inode, struct file * filep,
unsigned int command, unsigned long arg)
{
int rc = -ENOTTY; /* strange error - but the precedent */
@ -47,13 +47,13 @@ int cifs_ioctl (struct inode * inode, struct file * filep,
xid = GetXid();
cFYI(1,("ioctl file %p cmd %u arg %lu",filep,command,arg));
cFYI(1, ("ioctl file %p cmd %u arg %lu", filep, command, arg));
cifs_sb = CIFS_SB(inode->i_sb);
#ifdef CONFIG_CIFS_POSIX
tcon = cifs_sb->tcon;
if(tcon)
if (tcon)
caps = le64_to_cpu(tcon->fsUnixInfo.Capability);
else {
rc = -EIO;
@ -62,24 +62,24 @@ int cifs_ioctl (struct inode * inode, struct file * filep,
}
#endif /* CONFIG_CIFS_POSIX */
switch(command) {
switch (command) {
case CIFS_IOC_CHECKUMOUNT:
cFYI(1,("User unmount attempted"));
if(cifs_sb->mnt_uid == current->uid)
cFYI(1, ("User unmount attempted"));
if (cifs_sb->mnt_uid == current->uid)
rc = 0;
else {
rc = -EACCES;
cFYI(1,("uids do not match"));
cFYI(1, ("uids do not match"));
}
break;
#ifdef CONFIG_CIFS_POSIX
case FS_IOC_GETFLAGS:
if(CIFS_UNIX_EXTATTR_CAP & caps) {
if (CIFS_UNIX_EXTATTR_CAP & caps) {
if (pSMBFile == NULL)
break;
rc = CIFSGetExtAttr(xid, tcon, pSMBFile->netfid,
&ExtAttrBits, &ExtAttrMask);
if(rc == 0)
if (rc == 0)
rc = put_user(ExtAttrBits &
FS_FL_USER_VISIBLE,
(int __user *)arg);
@ -87,8 +87,8 @@ int cifs_ioctl (struct inode * inode, struct file * filep,
break;
case FS_IOC_SETFLAGS:
if(CIFS_UNIX_EXTATTR_CAP & caps) {
if(get_user(ExtAttrBits,(int __user *)arg)) {
if (CIFS_UNIX_EXTATTR_CAP & caps) {
if (get_user(ExtAttrBits, (int __user *)arg)) {
rc = -EFAULT;
break;
}
@ -96,16 +96,15 @@ int cifs_ioctl (struct inode * inode, struct file * filep,
break;
/* rc= CIFSGetExtAttr(xid,tcon,pSMBFile->netfid,
extAttrBits, &ExtAttrMask);*/
}
cFYI(1,("set flags not implemented yet"));
cFYI(1, ("set flags not implemented yet"));
break;
#endif /* CONFIG_CIFS_POSIX */
default:
cFYI(1,("unsupported ioctl"));
cFYI(1, ("unsupported ioctl"));
break;
}
FreeXid(xid);
return rc;
}
}

2
fs/cifs/rfc1002pdu.h
View file

@ -18,7 +18,7 @@
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* NB: unlike smb/cifs packets, the RFC1002 structures are big endian */