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nexedi
linux
Commits
bed8ce47
Commit
bed8ce47
authored
Jul 10, 2003
by
Steve French
Browse files
Options
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Plain Diff
Merge
bk://linux.bkbits.net/linux-2.5
into hostme.bitkeeper.com:/repos/c/cifs/linux-2.5cifs
parents
ccfd6724
31d35680
Changes
12
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12 changed files
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246 additions
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126 deletions
+246
-126
Documentation/filesystems/cifs.txt
Documentation/filesystems/cifs.txt
+51
-33
fs/cifs/cifs_debug.c
fs/cifs/cifs_debug.c
+4
-2
fs/cifs/cifsencrypt.c
fs/cifs/cifsencrypt.c
+63
-2
fs/cifs/cifsfs.c
fs/cifs/cifsfs.c
+1
-0
fs/cifs/cifsfs.h
fs/cifs/cifsfs.h
+1
-0
fs/cifs/cifsproto.h
fs/cifs/cifsproto.h
+4
-5
fs/cifs/cifssmb.c
fs/cifs/cifssmb.c
+4
-1
fs/cifs/connect.c
fs/cifs/connect.c
+47
-24
fs/cifs/dir.c
fs/cifs/dir.c
+67
-2
fs/cifs/file.c
fs/cifs/file.c
+2
-1
fs/cifs/inode.c
fs/cifs/inode.c
+2
-1
fs/cifs/smbencrypt.c
fs/cifs/smbencrypt.c
+0
-55
No files found.
Documentation/filesystems/cifs.txt
View file @
bed8ce47
This module, cifs, is a filesystem that implements the SMB/CIFS
protocol, which is the protocol used by Windows based operating systems
(including Windows 2000 and its successors) as well as Samba, OS/2 and
many others operating systems and network file server appliances. The
Cifs VFS filesystem module is designed to work well with servers that
implement the newer versions (dialects) of the SMB/CIFS protocol such as
Samba, the program written by Andrew Tridgell that turns any Unix host
into a file server for DOS or Windows clients, as well as Windows NT,
Windows 2000 and its successors. It is not designed to handle older smb
servers well, those that implement older versions of the dialect (such
as OS/2 or Windows 95), for this purpose use smbfs.
This module can support mounting without a mount helper program. The
mount syntax is:
mount //server_ip/share_name /mnt -o user=username,password=your_password
where "username", "your_password" and "server_ip" and "share_name"
should be replaced with specific values (supplied by the user) e.g.
mount //9.53.216.16/public /mnt -o user=jsmith,password=openup
This cifs implementation is designed to handle network caching (safely)
as well as to implement locking, large file (64 bit access), distributed
file system ("dfs") and other advanced protocol features. It also
implements the SNIA standard for Unix extensions to CIFS (when
communicating with servers such as Samba 2.2.3 or later which support it).
For more information contact sfrench@us.ibm.com
Cifs is an SMB client (or gateway). For more info on the SMB/CIFS
protocol and Samba, including documentation, please go to
http://www.samba.org/ and then on to your nearest mirror. For more
information about the cifs vfs, go to the project page at:
http://us1.samba.org/samba/Linux_CIFS_client.html
This is the client VFS module for the Common Internet File System
(CIFS) protocol which is the successor to the Server Message Block
(SMB) protocol, the native file sharing mechanism for most early
PC operating systems. CIFS is fully supported by current network
file servers such as Windows 2000, Windows 2003 (including
Windows XP) as well by Samba (which provides excellent CIFS
server support for Linux and many other operating systems), so
this network filesystem client can mount to a wide variety of
servers. The smbfs module should be used instead of this cifs module
for mounting to older SMB servers such as OS/2. The smbfs and cifs
modules can coexist and do not conflict. The CIFS VFS filesystem
module is designed to work well with servers that implement the
newer versions (dialects) of the SMB/CIFS protocol such as Samba,
the program written by Andrew Tridgell that turns any Unix host
into a SMB/CIFS file server.
The intent of this module is to provide the most advanced network
file system function for CIFS compliant servers, including better
POSIX compliance, secure per-user session establishment, high
performance safe distributed caching (oplock), optional packet
signing, large files, Unicode support and other internationalization
improvements. Since both Samba server and this filesystem client support
the CIFS Unix extensions, the combination can provide a reasonable
alternative to NFSv4 for fileserving in some Linux to Linux environments,
not just in Linux to Windows environments.
This filesystem has an optional mount utility (mount.cifs) that can
be obtained from the project page and installed in the path in the same
directory with the other mount helpers (such as mount.smbfs).
Mounting using the cifs filesystem without installing the mount helper
requires specifying the server's ip address.
For Linux 2.4:
mount //anything/here /mnt_target -o
user=username,pass=password,unc=//ip_address_of_server/sharename
For Linux 2.5:
mount //ip_address_of_server/sharename /mnt_target -o user=username, pass=password
For more information on the module see the project page at
http://us1.samba.org/samba/Linux_CIFS_client.html
For more information on CIFS see:
http://www.snia.org/tech_activities/CIFS
or the Samba site:
http://www.samba.org
fs/cifs/cifs_debug.c
View file @
bed8ce47
...
...
@@ -89,8 +89,8 @@ cifs_debug_data_read(char *buf, char **beginBuffer, off_t offset,
ses
->
serverOS
,
ses
->
serverNOS
,
ses
->
capabilities
);
buf
+=
length
;
if
(
ses
->
server
)
buf
+=
sprintf
(
buf
,
"
\t
Local Users To Same Server: %d "
,
atomic_read
(
&
ses
->
server
->
socketUseCount
));
buf
+=
sprintf
(
buf
,
"
\t
Local Users To Same Server: %d
SecMode: 0x%x
"
,
atomic_read
(
&
ses
->
server
->
socketUseCount
)
,
ses
->
server
->
secMode
);
}
read_unlock
(
&
GlobalSMBSeslock
);
sprintf
(
buf
,
"
\n
"
);
...
...
@@ -590,6 +590,8 @@ packet_signing_enabled_write(struct file *file, const char *buffer,
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
;
}
...
...
fs/cifs/cifsencrypt.c
View file @
bed8ce47
...
...
@@ -24,6 +24,7 @@
#include "cifsglob.h"
#include "cifs_debug.h"
#include "md5.h"
#include "cifs_unicode.h"
/* Calculate and return the CIFS signature based on the mac key and the smb pdu */
/* the 16 byte signature must be allocated by the caller */
...
...
@@ -133,8 +134,68 @@ int cifs_calculate_mac_key(char * key, const char * rn, const char * password)
if
((
key
==
NULL
)
||
(
rn
==
NULL
)
||
(
password
==
NULL
))
return
-
EINVAL
;
E_md4hash
(
password
,
temp_key
);
/* BB may have to do another md4 of it */
E_md4hash
(
password
,
temp_key
);
mdfour
(
key
,
temp_key
,
16
);
memcpy
(
key
+
16
,
rn
,
CIFS_SESSION_KEY_SIZE
);
return
0
;
}
}
int
CalcNTLMv2_partial_mac_key
(
struct
cifsSesInfo
*
ses
,
struct
nls_table
*
nls_info
)
{
char
temp_hash
[
16
];
struct
HMACMD5Context
ctx
;
char
*
ucase_buf
;
wchar_t
*
unicode_buf
;
unsigned
int
i
,
user_name_len
,
dom_name_len
;
if
(
ses
)
return
-
EINVAL
;
E_md4hash
(
ses
->
password_with_pad
,
temp_hash
);
hmac_md5_init_limK_to_64
(
temp_hash
,
16
,
&
ctx
);
user_name_len
=
strlen
(
ses
->
userName
);
if
(
user_name_len
>
MAX_USERNAME_SIZE
)
return
-
EINVAL
;
dom_name_len
=
strlen
(
ses
->
domainName
);
if
(
dom_name_len
>
MAX_USERNAME_SIZE
)
return
-
EINVAL
;
ucase_buf
=
kmalloc
((
MAX_USERNAME_SIZE
+
1
),
GFP_KERNEL
);
unicode_buf
=
kmalloc
((
MAX_USERNAME_SIZE
+
1
)
*
4
,
GFP_KERNEL
);
for
(
i
=
0
;
i
<
user_name_len
;
i
++
)
ucase_buf
[
i
]
=
nls_info
->
charset2upper
[(
int
)
ses
->
userName
[
i
]];
ucase_buf
[
i
]
=
0
;
user_name_len
=
cifs_strtoUCS
(
unicode_buf
,
ucase_buf
,
MAX_USERNAME_SIZE
*
2
,
nls_info
);
unicode_buf
[
user_name_len
]
=
0
;
user_name_len
++
;
for
(
i
=
0
;
i
<
dom_name_len
;
i
++
)
ucase_buf
[
i
]
=
nls_info
->
charset2upper
[(
int
)
ses
->
domainName
[
i
]];
ucase_buf
[
i
]
=
0
;
dom_name_len
=
cifs_strtoUCS
(
unicode_buf
+
user_name_len
,
ucase_buf
,
MAX_USERNAME_SIZE
*
2
,
nls_info
);
unicode_buf
[
user_name_len
+
dom_name_len
]
=
0
;
hmac_md5_update
((
const
unsigned
char
*
)
unicode_buf
,
(
user_name_len
+
dom_name_len
)
*
2
,
&
ctx
);
hmac_md5_final
(
ses
->
mac_signing_key
,
&
ctx
);
kfree
(
ucase_buf
);
kfree
(
unicode_buf
);
return
0
;
}
void
CalcNTLMv2_response
(
const
struct
cifsSesInfo
*
ses
,
char
*
v2_session_response
)
{
struct
HMACMD5Context
context
;
memcpy
(
v2_session_response
+
8
,
ses
->
server
->
cryptKey
,
8
);
/* gen_blob(v2_session_response + 16); */
hmac_md5_init_limK_to_64
(
ses
->
mac_signing_key
,
16
,
&
context
);
hmac_md5_update
(
ses
->
server
->
cryptKey
,
8
,
&
context
);
/* hmac_md5_update(v2_session_response+16)client thing,8,&context); */
/* BB fix */
hmac_md5_final
(
v2_session_response
,
&
context
);
}
fs/cifs/cifsfs.c
View file @
bed8ce47
...
...
@@ -301,6 +301,7 @@ struct inode_operations cifs_dir_inode_ops = {
/* revalidate:cifs_revalidate, */
.
setattr
=
cifs_setattr
,
.
symlink
=
cifs_symlink
,
.
mknod
=
cifs_mknod
,
};
struct
inode_operations
cifs_file_inode_ops
=
{
...
...
fs/cifs/cifsfs.h
View file @
bed8ce47
...
...
@@ -50,6 +50,7 @@ extern int cifs_create(struct inode *, struct dentry *, int, struct nameidata *)
extern
struct
dentry
*
cifs_lookup
(
struct
inode
*
,
struct
dentry
*
,
struct
nameidata
*
);
extern
int
cifs_unlink
(
struct
inode
*
,
struct
dentry
*
);
extern
int
cifs_hardlink
(
struct
dentry
*
,
struct
inode
*
,
struct
dentry
*
);
extern
int
cifs_mknod
(
struct
inode
*
,
struct
dentry
*
,
int
,
dev_t
);
extern
int
cifs_mkdir
(
struct
inode
*
,
struct
dentry
*
,
int
);
extern
int
cifs_rmdir
(
struct
inode
*
,
struct
dentry
*
);
extern
int
cifs_rename
(
struct
inode
*
,
struct
dentry
*
,
struct
inode
*
,
...
...
fs/cifs/cifsproto.h
View file @
bed8ce47
...
...
@@ -88,8 +88,7 @@ extern int CIFSNTLMSSPNegotiateSessSetup(unsigned int xid,
const
struct
nls_table
*
);
extern
int
CIFSNTLMSSPAuthSessSetup
(
unsigned
int
xid
,
struct
cifsSesInfo
*
ses
,
char
*
ntlm_session_key
,
char
*
lanman_session_key
,
int
ntlmv2_flag
,
const
struct
nls_table
*
);
int
ntlmv2_flag
,
const
struct
nls_table
*
);
extern
int
CIFSTCon
(
unsigned
int
xid
,
struct
cifsSesInfo
*
ses
,
const
char
*
tree
,
struct
cifsTconInfo
*
tcon
,
...
...
@@ -156,7 +155,7 @@ extern int CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon,
__u64
size
,
__u16
fileHandle
,
__u32
opener_pid
,
int
AllocSizeFlag
);
extern
int
CIFSSMBUnixSetPerms
(
const
int
xid
,
struct
cifsTconInfo
*
pTcon
,
char
*
full_path
,
__u64
mode
,
__u64
uid
,
__u64
gid
,
const
struct
nls_table
*
nls_codepage
);
__u64
gid
,
dev_t
dev
,
const
struct
nls_table
*
nls_codepage
);
extern
int
CIFSSMBMkDir
(
const
int
xid
,
struct
cifsTconInfo
*
tcon
,
const
char
*
newName
,
...
...
@@ -229,8 +228,8 @@ extern int cifs_sign_smb(struct smb_hdr *, struct cifsSesInfo *,__u32 *);
extern
int
cifs_verify_signature
(
const
struct
smb_hdr
*
,
const
char
*
mac_key
,
__u32
expected_sequence_number
);
extern
int
cifs_calculate_mac_key
(
char
*
key
,
const
char
*
rn
,
const
char
*
pass
);
/* BB routines below not implemented yet BB */
extern
void
CalcNTLMv2_partial_mac_key
(
struct
cifsSesInfo
*
,
struct
nls_table
*
);
extern
void
CalcNTLMv2_response
(
const
struct
cifsSesInfo
*
,
char
*
);
extern
int
CIFSBuildServerList
(
int
xid
,
char
*
serverBufferList
,
int
recordlength
,
int
*
entries
,
...
...
fs/cifs/cifssmb.c
View file @
bed8ce47
...
...
@@ -2299,7 +2299,7 @@ CIFSSMBSetTimes(int xid, struct cifsTconInfo *tcon, char *fileName,
int
CIFSSMBUnixSetPerms
(
const
int
xid
,
struct
cifsTconInfo
*
tcon
,
char
*
fileName
,
__u64
mode
,
__u64
uid
,
__u64
gid
,
const
struct
nls_table
*
nls_codepage
)
dev_t
device
,
const
struct
nls_table
*
nls_codepage
)
{
TRANSACTION2_SPI_REQ
*
pSMB
=
NULL
;
TRANSACTION2_SPI_RSP
*
pSMBr
=
NULL
;
...
...
@@ -2358,6 +2358,9 @@ CIFSSMBUnixSetPerms(const int xid, struct cifsTconInfo *tcon,
pSMB
->
hdr
.
smb_buf_length
+=
pSMB
->
ByteCount
;
data_offset
->
Uid
=
cpu_to_le64
(
uid
);
data_offset
->
Gid
=
cpu_to_le64
(
gid
);
/* better to leave device as zero when it is */
data_offset
->
DevMajor
=
cpu_to_le64
(
MAJOR
(
device
));
data_offset
->
DevMinor
=
cpu_to_le64
(
MINOR
(
device
));
data_offset
->
Permissions
=
cpu_to_le64
(
mode
);
pSMB
->
ByteCount
=
cpu_to_le16
(
pSMB
->
ByteCount
);
rc
=
SendReceive
(
xid
,
tcon
->
ses
,
(
struct
smb_hdr
*
)
pSMB
,
...
...
fs/cifs/connect.c
View file @
bed8ce47
...
...
@@ -634,7 +634,6 @@ get_dfs_path(int xid, struct cifsSesInfo *pSesInfo,
int
setup_session
(
unsigned
int
xid
,
struct
cifsSesInfo
*
pSesInfo
,
struct
nls_table
*
nls_info
)
{
int
rc
=
0
;
char
session_key
[
CIFS_SESSION_KEY_SIZE
];
char
ntlm_session_key
[
CIFS_SESSION_KEY_SIZE
];
int
ntlmv2_flag
=
FALSE
;
...
...
@@ -666,35 +665,44 @@ int setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo, struct nls_tab
nls_info
);
if
(
!
rc
)
{
if
(
ntlmv2_flag
)
{
cFYI
(
1
,(
"Able to use the more secure NTLM version 2 password hash"
));
/* SMBNTv2encrypt( ...); */
/* BB fix this up -
and note that Samba client equivalent looks wrong */
}
else
SMBNTencrypt
(
pSesInfo
->
password_with_pad
,
pSesInfo
->
server
->
cryptKey
,
ntlm_session_key
);
char
*
v2_response
;
cFYI
(
1
,(
"Can use more secure NTLM version 2 password hash"
));
CalcNTLMv2_partial_mac_key
(
pSesInfo
,
nls_info
);
v2_response
=
kmalloc
(
16
+
64
/* blob */
,
GFP_KERNEL
);
if
(
v2_response
)
{
CalcNTLMv2_response
(
pSesInfo
,
v2_response
);
/* cifs_calculate_ntlmv2_mac_key(pSesInfo->mac_signing_key, response, ntlm_session_key, */
kfree
(
v2_response
);
/* BB Put dummy sig in SessSetup PDU? */
}
else
rc
=
-
ENOMEM
;
/* BB add call to save MAC key here BB */
}
else
{
SMBNTencrypt
(
pSesInfo
->
password_with_pad
,
pSesInfo
->
server
->
cryptKey
,
ntlm_session_key
);
/* for better security the weaker lanman hash not sent
in AuthSessSetup so why bother calculating it */
/* toUpper(nls_info,
password_with_pad);
SMBencrypt(password_with_pad,
pSesInfo->server->cryptKey, session_key);
*/
cifs_calculate_mac_key
(
pSesInfo
->
mac_signing_key
,
ntlm_session_key
,
pSesInfo
->
password_with_pad
);
}
/* for better security the weaker lanman hash not sent
in AuthSessSetup so we no longer calculate it
*/
rc
=
CIFSNTLMSSPAuthSessSetup
(
xid
,
pSesInfo
,
ntlm_session_key
,
session_key
,
ntlmv2_flag
,
nls_info
);
pSesInfo
,
ntlm_session_key
,
ntlmv2_flag
,
nls_info
);
}
}
else
{
/* old style NTLM 0.12 session setup */
SMBNTencrypt
(
pSesInfo
->
password_with_pad
,
pSesInfo
->
server
->
cryptKey
,
ntlm_session_key
);
cifs_calculate_mac_key
(
pSesInfo
->
mac_signing_key
,
ntlm_session_key
,
pSesInfo
->
password_with_pad
);
cifs_calculate_mac_key
(
pSesInfo
->
mac_signing_key
,
ntlm_session_key
,
pSesInfo
->
password_with_pad
);
rc
=
CIFSSessSetup
(
xid
,
pSesInfo
,
ntlm_session_key
,
nls_info
);
}
...
...
@@ -1297,7 +1305,7 @@ CIFSSpnegoSessSetup(unsigned int xid, struct cifsSesInfo *ses,
int
bytes_returned
=
0
;
int
len
;
cFYI
(
1
,
(
"In
v2
sesssetup "
));
cFYI
(
1
,
(
"In
spnego
sesssetup "
));
smb_buffer
=
buf_get
();
if
(
smb_buffer
==
0
)
{
...
...
@@ -1605,7 +1613,9 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid,
SecurityBlob
->
NegotiateFlags
=
NTLMSSP_NEGOTIATE_UNICODE
|
NTLMSSP_NEGOTIATE_OEM
|
NTLMSSP_REQUEST_TARGET
|
NTLMSSP_NEGOTIATE_NTLM
|
0x80000000
|
NTLMSSP_NEGOTIATE_ALWAYS_SIGN
|
NTLMSSP_NEGOTIATE_128
;
/* NTLMSSP_NEGOTIATE_ALWAYS_SIGN | */
NTLMSSP_NEGOTIATE_128
;
if
(
sign_CIFS_PDUs
)
SecurityBlob
->
NegotiateFlags
|=
NTLMSSP_NEGOTIATE_SIGN
;
if
(
ntlmv2_support
)
SecurityBlob
->
NegotiateFlags
|=
NTLMSSP_NEGOTIATE_NTLMV2
;
/* setup pointers to domain name and workstation name */
...
...
@@ -1725,6 +1735,17 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid,
CIFS_CRYPTO_KEY_SIZE
);
if
(
SecurityBlob2
->
NegotiateFlags
&
NTLMSSP_NEGOTIATE_NTLMV2
)
*
pNTLMv2_flag
=
TRUE
;
if
((
SecurityBlob2
->
NegotiateFlags
&
NTLMSSP_NEGOTIATE_ALWAYS_SIGN
)
||
(
sign_CIFS_PDUs
>
1
))
ses
->
server
->
secMode
|=
SECMODE_SIGN_REQUIRED
;
if
((
SecurityBlob2
->
NegotiateFlags
&
NTLMSSP_NEGOTIATE_SIGN
)
&&
(
sign_CIFS_PDUs
))
ses
->
server
->
secMode
|=
SECMODE_SIGN_ENABLED
;
if
(
smb_buffer
->
Flags2
&=
SMBFLG2_UNICODE
)
{
if
((
long
)
(
bcc_ptr
)
%
2
)
{
remaining_words
=
...
...
@@ -1868,7 +1889,7 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid,
int
CIFSNTLMSSPAuthSessSetup
(
unsigned
int
xid
,
struct
cifsSesInfo
*
ses
,
char
*
ntlm_session_key
,
char
*
lanman_session_key
,
int
ntlmv2_flag
,
char
*
ntlm_session_key
,
int
ntlmv2_flag
,
const
struct
nls_table
*
nls_codepage
)
{
struct
smb_hdr
*
smb_buffer
;
...
...
@@ -1934,7 +1955,9 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses,
SecurityBlob
->
NegotiateFlags
=
NTLMSSP_NEGOTIATE_UNICODE
|
NTLMSSP_REQUEST_TARGET
|
NTLMSSP_NEGOTIATE_NTLM
|
NTLMSSP_NEGOTIATE_TARGET_INFO
|
0x80000000
|
NTLMSSP_NEGOTIATE_ALWAYS_SIGN
|
NTLMSSP_NEGOTIATE_128
;
0x80000000
|
NTLMSSP_NEGOTIATE_128
;
if
(
sign_CIFS_PDUs
)
SecurityBlob
->
NegotiateFlags
|=
/* NTLMSSP_NEGOTIATE_ALWAYS_SIGN |*/
NTLMSSP_NEGOTIATE_SIGN
;
if
(
ntlmv2_flag
)
SecurityBlob
->
NegotiateFlags
|=
NTLMSSP_NEGOTIATE_NTLMV2
;
...
...
fs/cifs/dir.c
View file @
bed8ce47
...
...
@@ -23,6 +23,7 @@
#include <linux/fs.h>
#include <linux/stat.h>
#include <linux/slab.h>
#include <linux/namei.h>
#include "cifsfs.h"
#include "cifspdu.h"
#include "cifsglob.h"
...
...
@@ -125,6 +126,7 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
int
rc
=
-
ENOENT
;
int
xid
;
int
oplock
=
REQ_OPLOCK
;
int
desiredAccess
=
GENERIC_ALL
;
__u16
fileHandle
;
struct
cifs_sb_info
*
cifs_sb
;
struct
cifsTconInfo
*
pTcon
;
...
...
@@ -138,10 +140,23 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
full_path
=
build_path_from_dentry
(
direntry
);
if
(
nd
)
{
cFYI
(
1
,(
"In create nd flags = 0x%x for %s"
,
nd
->
flags
,
full_path
));
cFYI
(
1
,(
"Intent flags: 0x%x"
,
nd
->
intent
.
open
.
flags
));
if
((
nd
->
intent
.
open
.
flags
&
O_ACCMODE
)
==
O_RDONLY
)
desiredAccess
=
GENERIC_READ
;
else
if
((
nd
->
intent
.
open
.
flags
&
O_ACCMODE
)
==
O_WRONLY
)
desiredAccess
=
GENERIC_WRITE
;
else
if
((
nd
->
intent
.
open
.
flags
&
O_ACCMODE
)
==
O_RDWR
)
desiredAccess
=
GENERIC_ALL
;
}
/* BB add processing for setting the equivalent of mode - e.g. via CreateX with ACLs */
rc
=
CIFSSMBOpen
(
xid
,
pTcon
,
full_path
,
FILE_OVERWRITE_IF
,
GENERIC_ALL
/* 0x20197 was used previously */
,
CREATE_NOT_DIR
,
rc
=
CIFSSMBOpen
(
xid
,
pTcon
,
full_path
,
FILE_OVERWRITE_IF
,
desiredAccess
,
CREATE_NOT_DIR
,
&
fileHandle
,
&
oplock
,
cifs_sb
->
local_nls
);
if
(
rc
)
{
cFYI
(
1
,
(
"cifs_create returned 0x%x "
,
rc
));
...
...
@@ -178,6 +193,43 @@ 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
rc
=
-
EPERM
;
int
xid
;
struct
cifs_sb_info
*
cifs_sb
;
struct
cifsTconInfo
*
pTcon
;
char
*
full_path
=
NULL
;
struct
inode
*
newinode
=
NULL
;
xid
=
GetXid
();
cifs_sb
=
CIFS_SB
(
inode
->
i_sb
);
pTcon
=
cifs_sb
->
tcon
;
full_path
=
build_path_from_dentry
(
direntry
);
if
(
pTcon
->
ses
->
capabilities
&
CAP_UNIX
)
{
rc
=
CIFSSMBUnixSetPerms
(
xid
,
pTcon
,
full_path
,
mode
,
current
->
euid
,
current
->
egid
,
device_number
,
cifs_sb
->
local_nls
);
if
(
!
rc
)
{
rc
=
cifs_get_inode_info_unix
(
&
newinode
,
full_path
,
inode
->
i_sb
);
direntry
->
d_op
=
&
cifs_dentry_ops
;
if
(
rc
==
0
)
d_instantiate
(
direntry
,
newinode
);
}
}
if
(
full_path
)
kfree
(
full_path
);
FreeXid
(
xid
);
return
rc
;
}
struct
dentry
*
cifs_lookup
(
struct
inode
*
parent_dir_inode
,
struct
dentry
*
direntry
,
struct
nameidata
*
nd
)
{
...
...
@@ -208,6 +260,13 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry, struct name
}
cFYI
(
1
,
(
" Full path: %s inode = 0x%p"
,
full_path
,
direntry
->
d_inode
));
if
(
nd
)
{
/* BB remove begin */
cFYI
(
1
,(
"In lookup nd flags = 0x%x"
,
nd
->
flags
));
cFYI
(
1
,(
"Intent flags: 0x%x"
,
nd
->
intent
.
open
.
flags
));
}
/* BB remove end BB */
if
(
pTcon
->
ses
->
capabilities
&
CAP_UNIX
)
rc
=
cifs_get_inode_info_unix
(
&
newInode
,
full_path
,
parent_dir_inode
->
i_sb
);
...
...
@@ -269,6 +328,12 @@ cifs_d_revalidate(struct dentry *direntry, struct nameidata *nd)
/* lock_kernel(); *//* surely we do not want to lock the kernel for a whole network round trip which could take seconds */
if
(
nd
)
{
/* BB remove begin */
cFYI
(
1
,(
"In d_revalidate nd flags = 0x%x"
,
nd
->
flags
));
cFYI
(
1
,(
"Intent flags: 0x%x"
,
nd
->
intent
.
open
.
flags
));
}
/* BB remove end BB */
if
(
direntry
->
d_inode
)
{
if
(
cifs_revalidate
(
direntry
))
{
/* unlock_kernel(); */
...
...
fs/cifs/file.c
View file @
bed8ce47
...
...
@@ -52,12 +52,12 @@ cifs_open(struct inode *inode, struct file *file)
xid
=
GetXid
();
cFYI
(
1
,
(
" inode = 0x%p file flags are %x"
,
inode
,
file
->
f_flags
));
cifs_sb
=
CIFS_SB
(
inode
->
i_sb
);
pTcon
=
cifs_sb
->
tcon
;
full_path
=
build_path_from_dentry
(
file
->
f_dentry
);
cFYI
(
1
,
(
" inode = 0x%p file flags are %x for %s"
,
inode
,
file
->
f_flags
,
full_path
));
if
((
file
->
f_flags
&
O_ACCMODE
)
==
O_RDONLY
)
desiredAccess
=
GENERIC_READ
;
else
if
((
file
->
f_flags
&
O_ACCMODE
)
==
O_WRONLY
)
...
...
@@ -125,6 +125,7 @@ cifs_open(struct inode *inode, struct file *file)
CIFSSMBUnixSetPerms
(
xid
,
pTcon
,
full_path
,
inode
->
i_mode
,
(
__u64
)
-
1
,
(
__u64
)
-
1
,
0
/* dev */
,
cifs_sb
->
local_nls
);
else
{
/* BB implement via Windows security descriptors */
/* eg CIFSSMBWinSetPerms(xid,pTcon,full_path,mode,-1,-1,local_nls);*/
...
...
fs/cifs/inode.c
View file @
bed8ce47
...
...
@@ -397,6 +397,7 @@ cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode)
CIFSSMBUnixSetPerms
(
xid
,
pTcon
,
full_path
,
mode
,
(
__u64
)
-
1
,
(
__u64
)
-
1
,
0
/* dev_t */
,
cifs_sb
->
local_nls
);
else
{
/* BB to be implemented via Windows secrty descriptors*/
/* eg CIFSSMBWinSetPerms(xid,pTcon,full_path,mode,-1,-1,local_nls);*/
...
...
@@ -702,7 +703,7 @@ cifs_setattr(struct dentry *direntry, struct iattr *attrs)
if
((
cifs_sb
->
tcon
->
ses
->
capabilities
&
CAP_UNIX
)
&&
(
attrs
->
ia_valid
&
(
ATTR_MODE
|
ATTR_GID
|
ATTR_UID
)))
rc
=
CIFSSMBUnixSetPerms
(
xid
,
pTcon
,
full_path
,
mode
,
uid
,
gid
,
cifs_sb
->
local_nls
);
0
/* dev_t */
,
cifs_sb
->
local_nls
);
else
if
(
attrs
->
ia_valid
&
ATTR_MODE
)
{
if
((
mode
&
S_IWUGO
)
==
0
)
/* not writeable */
{
if
((
cifsInode
->
cifsAttrs
&
ATTR_READONLY
)
==
0
)
...
...
fs/cifs/smbencrypt.c
View file @
bed8ce47
...
...
@@ -470,58 +470,3 @@ int SMBNTLMv2encrypt(const char *user, const char *domain, const char *password,
return
TRUE
;
}
/***********************************************************
SMB signing - setup the MAC key.
************************************************************/
void
cli_calculate_mac_key
(
__u8
*
mac_key
,
int
*
pmac_key_len
,
const
char
*
ntpasswd
,
const
unsigned
char
resp
[
24
])
{
/* Get first 16 bytes. */
E_md4hash
(
ntpasswd
,
mac_key
);
memcpy
(
mac_key
+
16
,
resp
,
24
);
*
pmac_key_len
=
40
;
/* Reset the sequence number in case we had a previous (aborted) attempt */
/* cli->sign_info.send_seq_num = 0; */
}
/***********************************************************
SMB signing - calculate a MAC to send.
************************************************************/
void
cli_caclulate_sign_mac
(
struct
smb_hdr
*
outbuf
,
__u8
*
mac_key
,
int
mac_key_len
,
__u32
*
send_seq_num
,
__u32
*
reply_seq_num
)
{
unsigned
char
calc_md5_mac
[
16
];
struct
MD5Context
md5_ctx
;
/* if (!cli->sign_info.use_smb_signing) {
return;
} */
/*
* Firstly put the sequence number into the first 4 bytes.
* and zero out the next 4 bytes.
*/
/*
SIVAL(outbuf, smb_ss_field, *send_seq_num);
SIVAL(outbuf, smb_ss_field + 4, 0); */
/* Calculate the 16 byte MAC and place first 8 bytes into the field. */
MD5Init
(
&
md5_ctx
);
MD5Update
(
&
md5_ctx
,
mac_key
,
mac_key_len
);
MD5Update
(
&
md5_ctx
,
outbuf
->
Protocol
,
be32_to_cpu
(
outbuf
->
smb_buf_length
));
MD5Final
(
calc_md5_mac
,
&
md5_ctx
);
memcpy
(
outbuf
->
Signature
.
SecuritySignature
,
calc_md5_mac
,
8
);
(
*
send_seq_num
)
++
;
*
reply_seq_num
=
*
send_seq_num
;
(
*
send_seq_num
)
++
;
}
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