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Commit 5d5011db authored by Pavel Shilovsky's avatar Pavel Shilovsky
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Add sources for 3.0

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sources/3.0/AUTHORS 0 → 100644
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Original Author
===============
Steve French (sfrench@samba.org)
The author wishes to express his appreciation and thanks to:
Andrew Tridgell (Samba team) for his early suggestions about smb/cifs VFS
improvements. Thanks to IBM for allowing me time and test resources to pursue
this project, to Jim McDonough from IBM (and the Samba Team) for his help, to
the IBM Linux JFS team for explaining many esoteric Linux filesystem features.
Jeremy Allison of the Samba team has done invaluable work in adding the server
side of the original CIFS Unix extensions and reviewing and implementing
portions of the newer CIFS POSIX extensions into the Samba 3 file server. Thank
Dave Boutcher of IBM Rochester (author of the OS/400 smb/cifs filesystem client)
for proving years ago that very good smb/cifs clients could be done on Unix-like
operating systems. Volker Lendecke, Andrew Tridgell, Urban Widmark, John
Newbigin and others for their work on the Linux smbfs module. Thanks to
the other members of the Storage Network Industry Association CIFS Technical
Workgroup for their work specifying this highly complex protocol and finally
thanks to the Samba team for their technical advice and encouragement.
Patch Contributors
------------------
Zwane Mwaikambo
Andi Kleen
Amrut Joshi
Shobhit Dayal
Sergey Vlasov
Richard Hughes
Yury Umanets
Mark Hamzy (for some of the early cifs IPv6 work)
Domen Puncer
Jesper Juhl (in particular for lots of whitespace/formatting cleanup)
Vince Negri and Dave Stahl (for finding an important caching bug)
Adrian Bunk (kcalloc cleanups)
Miklos Szeredi
Kazeon team for various fixes especially for 2.4 version.
Asser Ferno (Change Notify support)
Shaggy (Dave Kleikamp) for innumerable small fs suggestions and some good cleanup
Gunter Kukkukk (testing and suggestions for support of old servers)
Igor Mammedov (DFS support)
Jeff Layton (many, many fixes, as well as great work on the cifs Kerberos code)
Test case and Bug Report contributors
-------------------------------------
Thanks to those in the community who have submitted detailed bug reports
and debug of problems they have found: Jochen Dolze, David Blaine,
Rene Scharfe, Martin Josefsson, Alexander Wild, Anthony Liguori,
Lars Muller, Urban Widmark, Massimiliano Ferrero, Howard Owen,
Olaf Kirch, Kieron Briggs, Nick Millington and others. Also special
mention to the Stanford Checker (SWAT) which pointed out many minor
bugs in error paths. Valuable suggestions also have come from Al Viro
and Dave Miller.
And thanks to the IBM LTC and Power test teams and SuSE testers for
finding multiple bugs during excellent stress test runs.
sources/3.0/Kconfig 0 → 100644
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config CIFS
tristate "CIFS support (advanced network filesystem, SMBFS successor)"
depends on INET
select NLS
select CRYPTO
select CRYPTO_MD4
select CRYPTO_MD5
select CRYPTO_HMAC
select CRYPTO_ARC4
select CRYPTO_ECB
select CRYPTO_DES
help
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. The CIFS protocol is fully supported by
file servers such as Windows 2000 (including Windows 2003, NT 4
and Windows XP) as well by Samba (which provides excellent CIFS
server support for Linux and many other operating systems). Limited
support for OS/2 and Windows ME and similar servers is provided as
well.
The cifs module provides an advanced network file system
client for mounting to CIFS compliant servers. It includes
support for DFS (hierarchical name space), secure per-user
session establishment via Kerberos or NTLM or NTLMv2,
safe distributed caching (oplock), optional packet
signing, Unicode and other internationalization improvements.
If you need to mount to Samba or Windows from this machine, say Y.
config CIFS_STATS
bool "CIFS statistics"
depends on CIFS
help
Enabling this option will cause statistics for each server share
mounted by the cifs client to be displayed in /proc/fs/cifs/Stats
config CIFS_STATS2
bool "Extended statistics"
depends on CIFS_STATS
help
Enabling this option will allow more detailed statistics on SMB
request timing to be displayed in /proc/fs/cifs/DebugData and also
allow optional logging of slow responses to dmesg (depending on the
value of /proc/fs/cifs/cifsFYI, see fs/cifs/README for more details).
These additional statistics may have a minor effect on performance
and memory utilization.
Unless you are a developer or are doing network performance analysis
or tuning, say N.
config CIFS_WEAK_PW_HASH
bool "Support legacy servers which use weaker LANMAN security"
depends on CIFS
help
Modern CIFS servers including Samba and most Windows versions
(since 1997) support stronger NTLM (and even NTLMv2 and Kerberos)
security mechanisms. These hash the password more securely
than the mechanisms used in the older LANMAN version of the
SMB protocol but LANMAN based authentication is needed to
establish sessions with some old SMB servers.
Enabling this option allows the cifs module to mount to older
LANMAN based servers such as OS/2 and Windows 95, but such
mounts may be less secure than mounts using NTLM or more recent
security mechanisms if you are on a public network. Unless you
have a need to access old SMB servers (and are on a private
network) you probably want to say N. Even if this support
is enabled in the kernel build, LANMAN authentication will not be
used automatically. At runtime LANMAN mounts are disabled but
can be set to required (or optional) either in
/proc/fs/cifs (see fs/cifs/README for more detail) or via an
option on the mount command. This support is disabled by
default in order to reduce the possibility of a downgrade
attack.
If unsure, say N.
config CIFS_UPCALL
bool "Kerberos/SPNEGO advanced session setup"
depends on CIFS && KEYS
select DNS_RESOLVER
help
Enables an upcall mechanism for CIFS which accesses userspace helper
utilities to provide SPNEGO packaged (RFC 4178) Kerberos tickets
which are needed to mount to certain secure servers (for which more
secure Kerberos authentication is required). If unsure, say N.
config CIFS_XATTR
bool "CIFS extended attributes"
depends on CIFS
help
Extended attributes are name:value pairs associated with inodes by
the kernel or by users (see the attr(5) manual page, or visit
<http://acl.bestbits.at/> for details). CIFS maps the name of
extended attributes beginning with the user namespace prefix
to SMB/CIFS EAs. EAs are stored on Windows servers without the
user namespace prefix, but their names are seen by Linux cifs clients
prefaced by the user namespace prefix. The system namespace
(used by some filesystems to store ACLs) is not supported at
this time.
If unsure, say N.
config CIFS_POSIX
bool "CIFS POSIX Extensions"
depends on CIFS_XATTR
help
Enabling this option will cause the cifs client to attempt to
negotiate a newer dialect with servers, such as Samba 3.0.5
or later, that optionally can handle more POSIX like (rather
than Windows like) file behavior. It also enables
support for POSIX ACLs (getfacl and setfacl) to servers
(such as Samba 3.10 and later) which can negotiate
CIFS POSIX ACL support. If unsure, say N.
config CIFS_DEBUG2
bool "Enable additional CIFS debugging routines"
depends on CIFS
help
Enabling this option adds a few more debugging routines
to the cifs code which slightly increases the size of
the cifs module and can cause additional logging of debug
messages in some error paths, slowing performance. This
option can be turned off unless you are debugging
cifs problems. If unsure, say N.
config CIFS_DFS_UPCALL
bool "DFS feature support"
depends on CIFS && KEYS
select DNS_RESOLVER
help
Distributed File System (DFS) support is used to access shares
transparently in an enterprise name space, even if the share
moves to a different server. This feature also enables
an upcall mechanism for CIFS which contacts userspace helper
utilities to provide server name resolution (host names to
IP addresses) which is needed for implicit mounts of DFS junction
points. If unsure, say N.
config CIFS_FSCACHE
bool "Provide CIFS client caching support (EXPERIMENTAL)"
depends on EXPERIMENTAL
depends on CIFS=m && FSCACHE || CIFS=y && FSCACHE=y
help
Makes CIFS FS-Cache capable. Say Y here if you want your CIFS data
to be cached locally on disk through the general filesystem cache
manager. If unsure, say N.
config CIFS_ACL
bool "Provide CIFS ACL support (EXPERIMENTAL)"
depends on EXPERIMENTAL && CIFS_XATTR && KEYS
help
Allows to fetch CIFS/NTFS ACL from the server. The DACL blob
is handed over to the application/caller.
config CIFS_NFSD_EXPORT
bool "Allow nfsd to export CIFS file system (EXPERIMENTAL)"
depends on CIFS && EXPERIMENTAL && BROKEN
help
Allows NFS server to export a CIFS mounted share (nfsd over cifs)
sources/3.0/Makefile 0 → 100644
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#
# Makefile for Linux CIFS VFS client
#
obj-$(CONFIG_CIFS) += etercifs.o
etercifs-y := cifsfs.o cifssmb.o cifs_debug.o connect.o dir.o file.o inode.o \
link.o misc.o netmisc.o smbencrypt.o transport.o asn1.o \
cifs_unicode.o nterr.o xattr.o cifsencrypt.o \
readdir.o ioctl.o sess.o export.o
etercifs-$(CONFIG_CIFS_ACL) += cifsacl.o
etercifs-$(CONFIG_CIFS_UPCALL) += cifs_spnego.o
etercifs-$(CONFIG_CIFS_DFS_UPCALL) += dns_resolve.o cifs_dfs_ref.o
etercifs-$(CONFIG_CIFS_FSCACHE) += fscache.o cache.o
sources/3.0/TODO 0 → 100644
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Version 1.53 May 20, 2008
A Partial List of Missing Features
==================================
Contributions are welcome. There are plenty of opportunities
for visible, important contributions to this module. Here
is a partial list of the known problems and missing features:
a) Support for SecurityDescriptors(Windows/CIFS ACLs) for chmod/chgrp/chown
so that these operations can be supported to Windows servers
b) Mapping POSIX ACLs (and eventually NFSv4 ACLs) to CIFS
SecurityDescriptors
c) Better pam/winbind integration (e.g. to handle uid mapping
better)
d) Cleanup now unneeded SessSetup code in
fs/cifs/connect.c and add back in NTLMSSP code if any servers
need it
e) fix NTLMv2 signing when two mounts with different users to same
server.
f) Directory entry caching relies on a 1 second timer, rather than
using FindNotify or equivalent. - (started)
g) quota support (needs minor kernel change since quota calls
to make it to network filesystems or deviceless filesystems)
h) investigate sync behavior (including syncpage) and check
for proper behavior of intr/nointr
i) improve support for very old servers (OS/2 and Win9x for example)
Including support for changing the time remotely (utimes command).
j) hook lower into the sockets api (as NFS/SunRPC does) to avoid the
extra copy in/out of the socket buffers in some cases.
k) Better optimize open (and pathbased setfilesize) to reduce the
oplock breaks coming from windows srv. Piggyback identical file
opens on top of each other by incrementing reference count rather
than resending (helps reduce server resource utilization and avoid
spurious oplock breaks).
l) Improve performance of readpages by sending more than one read
at a time when 8 pages or more are requested. In conjuntion
add support for async_cifs_readpages.
m) Add support for storing symlink info to Windows servers
in the Extended Attribute format their SFU clients would recognize.
n) Finish fcntl D_NOTIFY support so kde and gnome file list windows
will autorefresh (partially complete by Asser). Needs minor kernel
vfs change to support removing D_NOTIFY on a file.
o) Add GUI tool to configure /proc/fs/cifs settings and for display of
the CIFS statistics (started)
p) implement support for security and trusted categories of xattrs
(requires minor protocol extension) to enable better support for SELINUX
q) Implement O_DIRECT flag on open (already supported on mount)
r) Create UID mapping facility so server UIDs can be mapped on a per
mount or a per server basis to client UIDs or nobody if no mapping
exists. This is helpful when Unix extensions are negotiated to
allow better permission checking when UIDs differ on the server
and client. Add new protocol request to the CIFS protocol
standard for asking the server for the corresponding name of a
particular uid.
s) Add support for CIFS Unix and also the newer POSIX extensions to the
server side for Samba 4.
t) In support for OS/2 (LANMAN 1.2 and LANMAN2.1 based SMB servers)
need to add ability to set time to server (utimes command)
u) DOS attrs - returned as pseudo-xattr in Samba format (check VFAT and NTFS for this too)
v) mount check for unmatched uids
w) Add support for new vfs entry point for fallocate
x) Fix Samba 3 server to handle Linux kernel aio so dbench with lots of
processes can proceed better in parallel (on the server)
y) Fix Samba 3 to handle reads/writes over 127K (and remove the cifs mount
restriction of wsize max being 127K)
KNOWN BUGS (updated April 24, 2007)
====================================
See http://bugzilla.samba.org - search on product "CifsVFS" for
current bug list.
1) existing symbolic links (Windows reparse points) are recognized but
can not be created remotely. They are implemented for Samba and those that
support the CIFS Unix extensions, although earlier versions of Samba
overly restrict the pathnames.
2) follow_link and readdir code does not follow dfs junctions
but recognizes them
3) create of new files to FAT partitions on Windows servers can
succeed but still return access denied (appears to be Windows
server not cifs client problem) and has not been reproduced recently.
NTFS partitions do not have this problem.
4) Unix/POSIX capabilities are reset after reconnection, and affect
a few fields in the tree connection but we do do not know which
superblocks to apply these changes to. We should probably walk
the list of superblocks to set these. Also need to check the
flags on the second mount to the same share, and see if we
can do the same trick that NFS does to remount duplicate shares.
Misc testing to do
==================
1) check out max path names and max path name components against various server
types. Try nested symlinks (8 deep). Return max path name in stat -f information
2) Modify file portion of ltp so it can run against a mounted network
share and run it against cifs vfs in automated fashion.
3) Additional performance testing and optimization using iozone and similar -
there are some easy changes that can be done to parallelize sequential writes,
and when signing is disabled to request larger read sizes (larger than
negotiated size) and send larger write sizes to modern servers.
4) More exhaustively test against less common servers. More testing
against Windows 9x, Windows ME servers.
sources/3.0/cache.c 0 → 100644
View file @ 5d5011db
/*
* fs/cifs/cache.c - CIFS filesystem cache index structure definitions
*
* Copyright (c) 2010 Novell, Inc.
* Authors(s): Suresh Jayaraman (sjayaraman@suse.de>
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library 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 Lesser General Public License for more details.
*
* 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
*/
#include "fscache.h"
#include "cifs_debug.h"
/*
* CIFS filesystem definition for FS-Cache
*/
struct fscache_netfs cifs_fscache_netfs = {
.name = "cifs",
.version = 0,
};
/*
* Register CIFS for caching with FS-Cache
*/
int cifs_fscache_register(void)
{
return fscache_register_netfs(&cifs_fscache_netfs);
}
/*
* Unregister CIFS for caching
*/
void cifs_fscache_unregister(void)
{
fscache_unregister_netfs(&cifs_fscache_netfs);
}
/*
* Key layout of CIFS server cache index object
*/
struct cifs_server_key {
uint16_t family; /* address family */
__be16 port; /* IP port */
union {
struct in_addr ipv4_addr;
struct in6_addr ipv6_addr;
} addr[0];
};
/*
* Server object keyed by {IPaddress,port,family} tuple
*/
static uint16_t cifs_server_get_key(const void *cookie_netfs_data,
void *buffer, uint16_t maxbuf)
{
const struct TCP_Server_Info *server = cookie_netfs_data;
const struct sockaddr *sa = (struct sockaddr *) &server->dstaddr;
const struct sockaddr_in *addr = (struct sockaddr_in *) sa;
const struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *) sa;
struct cifs_server_key *key = buffer;
uint16_t key_len = sizeof(struct cifs_server_key);
memset(key, 0, key_len);
/*
* Should not be a problem as sin_family/sin6_family overlays
* sa_family field
*/
switch (sa->sa_family) {
case AF_INET:
key->family = sa->sa_family;
key->port = addr->sin_port;
key->addr[0].ipv4_addr = addr->sin_addr;
key_len += sizeof(key->addr[0].ipv4_addr);
break;
case AF_INET6:
key->family = sa->sa_family;
key->port = addr6->sin6_port;
key->addr[0].ipv6_addr = addr6->sin6_addr;
key_len += sizeof(key->addr[0].ipv6_addr);
break;
default:
cERROR(1, "Unknown network family '%d'", sa->sa_family);
key_len = 0;
break;
}
return key_len;
}
/*
* Server object for FS-Cache
*/
const struct fscache_cookie_def cifs_fscache_server_index_def = {
.name = "CIFS.server",
.type = FSCACHE_COOKIE_TYPE_INDEX,
.get_key = cifs_server_get_key,
};
/*
* Auxiliary data attached to CIFS superblock within the cache
*/
struct cifs_fscache_super_auxdata {
u64 resource_id; /* unique server resource id */
};
static char *extract_sharename(const char *treename)
{
const char *src;
char *delim, *dst;
int len;
/* skip double chars at the beginning */
src = treename + 2;
/* share name is always preceded by '\\' now */
delim = strchr(src, '\\');
if (!delim)
return ERR_PTR(-EINVAL);
delim++;
len = strlen(delim);
/* caller has to free the memory */
dst = kstrndup(delim, len, GFP_KERNEL);
if (!dst)
return ERR_PTR(-ENOMEM);
return dst;
}
/*
* Superblock object currently keyed by share name
*/
static uint16_t cifs_super_get_key(const void *cookie_netfs_data, void *buffer,
uint16_t maxbuf)
{
const struct cifs_tcon *tcon = cookie_netfs_data;
char *sharename;
uint16_t len;
sharename = extract_sharename(tcon->treeName);
if (IS_ERR(sharename)) {
cFYI(1, "%s: couldn't extract sharename\n", __func__);
sharename = NULL;
return 0;
}
len = strlen(sharename);
if (len > maxbuf)
return 0;
memcpy(buffer, sharename, len);
kfree(sharename);
return len;
}
static uint16_t
cifs_fscache_super_get_aux(const void *cookie_netfs_data, void *buffer,
uint16_t maxbuf)
{
struct cifs_fscache_super_auxdata auxdata;
const struct cifs_tcon *tcon = cookie_netfs_data;
memset(&auxdata, 0, sizeof(auxdata));
auxdata.resource_id = tcon->resource_id;
if (maxbuf > sizeof(auxdata))
maxbuf = sizeof(auxdata);
memcpy(buffer, &auxdata, maxbuf);
return maxbuf;
}
static enum
fscache_checkaux cifs_fscache_super_check_aux(void *cookie_netfs_data,
const void *data,
uint16_t datalen)
{
struct cifs_fscache_super_auxdata auxdata;
const struct cifs_tcon *tcon = cookie_netfs_data;
if (datalen != sizeof(auxdata))
return FSCACHE_CHECKAUX_OBSOLETE;
memset(&auxdata, 0, sizeof(auxdata));
auxdata.resource_id = tcon->resource_id;
if (memcmp(data, &auxdata, datalen) != 0)
return FSCACHE_CHECKAUX_OBSOLETE;
return FSCACHE_CHECKAUX_OKAY;
}
/*
* Superblock object for FS-Cache
*/
const struct fscache_cookie_def cifs_fscache_super_index_def = {
.name = "CIFS.super",
.type = FSCACHE_COOKIE_TYPE_INDEX,
.get_key = cifs_super_get_key,
.get_aux = cifs_fscache_super_get_aux,
.check_aux = cifs_fscache_super_check_aux,
};
/*
* Auxiliary data attached to CIFS inode within the cache
*/
struct cifs_fscache_inode_auxdata {
struct timespec last_write_time;
struct timespec last_change_time;
u64 eof;
};
static uint16_t cifs_fscache_inode_get_key(const void *cookie_netfs_data,
void *buffer, uint16_t maxbuf)
{
const struct cifsInodeInfo *cifsi = cookie_netfs_data;
uint16_t keylen;
/* use the UniqueId as the key */
keylen = sizeof(cifsi->uniqueid);
if (keylen > maxbuf)
keylen = 0;
else
memcpy(buffer, &cifsi->uniqueid, keylen);
return keylen;
}
static void
cifs_fscache_inode_get_attr(const void *cookie_netfs_data, uint64_t *size)
{
const struct cifsInodeInfo *cifsi = cookie_netfs_data;
*size = cifsi->vfs_inode.i_size;
}
static uint16_t
cifs_fscache_inode_get_aux(const void *cookie_netfs_data, void *buffer,
uint16_t maxbuf)
{
struct cifs_fscache_inode_auxdata auxdata;
const struct cifsInodeInfo *cifsi = cookie_netfs_data;
memset(&auxdata, 0, sizeof(auxdata));
auxdata.eof = cifsi->server_eof;
auxdata.last_write_time = cifsi->vfs_inode.i_mtime;
auxdata.last_change_time = cifsi->vfs_inode.i_ctime;
if (maxbuf > sizeof(auxdata))
maxbuf = sizeof(auxdata);
memcpy(buffer, &auxdata, maxbuf);
return maxbuf;
}
static enum
fscache_checkaux cifs_fscache_inode_check_aux(void *cookie_netfs_data,
const void *data,
uint16_t datalen)
{
struct cifs_fscache_inode_auxdata auxdata;
struct cifsInodeInfo *cifsi = cookie_netfs_data;
if (datalen != sizeof(auxdata))
return FSCACHE_CHECKAUX_OBSOLETE;
memset(&auxdata, 0, sizeof(auxdata));
auxdata.eof = cifsi->server_eof;
auxdata.last_write_time = cifsi->vfs_inode.i_mtime;
auxdata.last_change_time = cifsi->vfs_inode.i_ctime;
if (memcmp(data, &auxdata, datalen) != 0)
return FSCACHE_CHECKAUX_OBSOLETE;
return FSCACHE_CHECKAUX_OKAY;
}
static void cifs_fscache_inode_now_uncached(void *cookie_netfs_data)
{
struct cifsInodeInfo *cifsi = cookie_netfs_data;
struct pagevec pvec;
pgoff_t first;
int loop, nr_pages;
pagevec_init(&pvec, 0);
first = 0;
cFYI(1, "%s: cifs inode 0x%p now uncached", __func__, cifsi);
for (;;) {
nr_pages = pagevec_lookup(&pvec,
cifsi->vfs_inode.i_mapping, first,
PAGEVEC_SIZE - pagevec_count(&pvec));
if (!nr_pages)
break;
for (loop = 0; loop < nr_pages; loop++)
ClearPageFsCache(pvec.pages[loop]);
first = pvec.pages[nr_pages - 1]->index + 1;
pvec.nr = nr_pages;
pagevec_release(&pvec);
cond_resched();
}
}
const struct fscache_cookie_def cifs_fscache_inode_object_def = {
.name = "CIFS.uniqueid",
.type = FSCACHE_COOKIE_TYPE_DATAFILE,
.get_key = cifs_fscache_inode_get_key,
.get_attr = cifs_fscache_inode_get_attr,
.get_aux = cifs_fscache_inode_get_aux,
.check_aux = cifs_fscache_inode_check_aux,
.now_uncached = cifs_fscache_inode_now_uncached,
};
sources/3.0/cifs_debug.h 0 → 100644
View file @ 5d5011db
/*
*
* Copyright (c) International Business Machines Corp., 2000,2002
* Modified by Steve French (sfrench@us.ibm.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#define CIFS_DEBUG /* BB temporary */
#ifndef _H_CIFS_DEBUG
#define _H_CIFS_DEBUG
void cifs_dump_mem(char *label, void *data, int length);
#ifdef CONFIG_CIFS_DEBUG2
#define DBG2 2
void cifs_dump_detail(struct smb_hdr *);
void cifs_dump_mids(struct TCP_Server_Info *);
#else
#define DBG2 0
#endif
extern int traceSMB; /* flag which enables the function below */
void dump_smb(struct smb_hdr *, int);
#define CIFS_INFO 0x01
#define CIFS_RC 0x02
#define CIFS_TIMER 0x04
/*
* debug ON
* --------
*/
#ifdef CIFS_DEBUG
/* information message: e.g., configuration, major event */
extern int cifsFYI;
#define cifsfyi(fmt, arg...) \
do { \
if (cifsFYI & CIFS_INFO) \
printk(KERN_DEBUG "%s: " fmt "\n", __FILE__, ##arg); \
} while (0)
#define cFYI(set, fmt, arg...) \
do { \
if (set) \
cifsfyi(fmt, ##arg); \
} while (0)
#define cifswarn(fmt, arg...) \
printk(KERN_WARNING fmt "\n", ##arg)
/* debug event message: */
extern int cifsERROR;
#define cEVENT(fmt, arg...) \
do { \
if (cifsERROR) \
printk(KERN_EVENT "%s: " fmt "\n", __FILE__, ##arg); \
} while (0)
/* error event message: e.g., i/o error */
#define cifserror(fmt, arg...) \
do { \
if (cifsERROR) \
printk(KERN_ERR "CIFS VFS: " fmt "\n", ##arg); \
} while (0)
#define cERROR(set, fmt, arg...) \
do { \
if (set) \
cifserror(fmt, ##arg); \
} while (0)
/*
* debug OFF
* ---------
*/
#else /* _CIFS_DEBUG */
#define cERROR(set, fmt, arg...)
#define cEVENT(fmt, arg...)
#define cFYI(set, fmt, arg...)
#define cifserror(fmt, arg...)
#endif /* _CIFS_DEBUG */
#endif /* _H_CIFS_DEBUG */
sources/3.0/cifs_dfs_ref.c 0 → 100644
View file @ 5d5011db
/*
* Contains the CIFS DFS referral mounting routines used for handling
* traversal via DFS junction point
*
* Copyright (c) 2007 Igor Mammedov
* Copyright (C) International Business Machines Corp., 2008
* Author(s): Igor Mammedov (niallain@gmail.com)
* Steve French (sfrench@us.ibm.com)
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#include <linux/dcache.h>
#include <linux/mount.h>
#include <linux/namei.h>
#include <linux/slab.h>
#include <linux/vfs.h>
#include <linux/fs.h>
#include "cifsglob.h"
#include "cifsproto.h"
#include "cifsfs.h"
#include "dns_resolve.h"
#include "cifs_debug.h"
static LIST_HEAD(cifs_dfs_automount_list);
static void cifs_dfs_expire_automounts(struct work_struct *work);
static DECLARE_DELAYED_WORK(cifs_dfs_automount_task,
cifs_dfs_expire_automounts);
static int cifs_dfs_mountpoint_expiry_timeout = 500 * HZ;
static void cifs_dfs_expire_automounts(struct work_struct *work)
{
struct list_head *list = &cifs_dfs_automount_list;
mark_mounts_for_expiry(list);
if (!list_empty(list))
schedule_delayed_work(&cifs_dfs_automount_task,
cifs_dfs_mountpoint_expiry_timeout);
}
void cifs_dfs_release_automount_timer(void)
{
BUG_ON(!list_empty(&cifs_dfs_automount_list));
cancel_delayed_work_sync(&cifs_dfs_automount_task);
}
/**
* cifs_get_share_name - extracts share name from UNC
* @node_name: pointer to UNC string
*
* Extracts sharename form full UNC.
* i.e. strips from UNC trailing path that is not part of share
* name and fixup missing '\' in the beginning of DFS node refferal
* if necessary.
* Returns pointer to share name on success or ERR_PTR on error.
* Caller is responsible for freeing returned string.
*/
static char *cifs_get_share_name(const char *node_name)
{
int len;
char *UNC;
char *pSep;
len = strlen(node_name);
UNC = kmalloc(len+2 /*for term null and additional \ if it's missed */,
GFP_KERNEL);
if (!UNC)
return ERR_PTR(-ENOMEM);
/* get share name and server name */
if (node_name[1] != '\\') {
UNC[0] = '\\';
strncpy(UNC+1, node_name, len);
len++;
UNC[len] = 0;
} else {
strncpy(UNC, node_name, len);
UNC[len] = 0;
}
/* find server name end */
pSep = memchr(UNC+2, '\\', len-2);
if (!pSep) {
cERROR(1, "%s: no server name end in node name: %s",
__func__, node_name);
kfree(UNC);
return ERR_PTR(-EINVAL);
}
/* find sharename end */
pSep++;
pSep = memchr(UNC+(pSep-UNC), '\\', len-(pSep-UNC));
if (pSep) {
/* trim path up to sharename end
* now we have share name in UNC */
*pSep = 0;
}
return UNC;
}
/**
* cifs_compose_mount_options - creates mount options for refferral
* @sb_mountdata: parent/root DFS mount options (template)
* @fullpath: full path in UNC format
* @ref: server's referral
* @devname: pointer for saving device name
*
* creates mount options for submount based on template options sb_mountdata
* and replacing unc,ip,prefixpath options with ones we've got form ref_unc.
*
* Returns: pointer to new mount options or ERR_PTR.
* Caller is responcible for freeing retunrned value if it is not error.
*/
char *cifs_compose_mount_options(const char *sb_mountdata,
const char *fullpath,
const struct dfs_info3_param *ref,
char **devname)
{
int rc;
char *mountdata = NULL;
int md_len;
char *tkn_e;
char *srvIP = NULL;
char sep = ',';
int off, noff;
if (sb_mountdata == NULL)
return ERR_PTR(-EINVAL);
*devname = cifs_get_share_name(ref->node_name);
if (IS_ERR(*devname)) {
rc = PTR_ERR(*devname);
*devname = NULL;
goto compose_mount_options_err;
}
rc = dns_resolve_server_name_to_ip(*devname, &srvIP);
if (rc < 0) {
cERROR(1, "%s: Failed to resolve server part of %s to IP: %d",
__func__, *devname, rc);
goto compose_mount_options_err;
}
/* md_len = strlen(...) + 12 for 'sep+prefixpath='
* assuming that we have 'unc=' and 'ip=' in
* the original sb_mountdata
*/
md_len = strlen(sb_mountdata) + rc + strlen(ref->node_name) + 12;
mountdata = kzalloc(md_len+1, GFP_KERNEL);
if (mountdata == NULL) {
rc = -ENOMEM;
goto compose_mount_options_err;
}
/* copy all options except of unc,ip,prefixpath */
off = 0;
if (strncmp(sb_mountdata, "sep=", 4) == 0) {
sep = sb_mountdata[4];
strncpy(mountdata, sb_mountdata, 5);
off += 5;
}
do {
tkn_e = strchr(sb_mountdata + off, sep);
if (tkn_e == NULL)
noff = strlen(sb_mountdata + off);
else
noff = tkn_e - (sb_mountdata + off) + 1;
if (strnicmp(sb_mountdata + off, "unc=", 4) == 0) {
off += noff;
continue;
}
if (strnicmp(sb_mountdata + off, "ip=", 3) == 0) {
off += noff;
continue;
}
if (strnicmp(sb_mountdata + off, "prefixpath=", 11) == 0) {
off += noff;
continue;
}
strncat(mountdata, sb_mountdata + off, noff);
off += noff;
} while (tkn_e);
strcat(mountdata, sb_mountdata + off);
mountdata[md_len] = '\0';
/* copy new IP and ref share name */
if (mountdata[strlen(mountdata) - 1] != sep)
strncat(mountdata, &sep, 1);
strcat(mountdata, "ip=");
strcat(mountdata, srvIP);
strncat(mountdata, &sep, 1);
strcat(mountdata, "unc=");
strcat(mountdata, *devname);
/* find & copy prefixpath */
tkn_e = strchr(ref->node_name + 2, '\\');
if (tkn_e == NULL) {
/* invalid unc, missing share name*/
rc = -EINVAL;
goto compose_mount_options_err;
}
tkn_e = strchr(tkn_e + 1, '\\');
if (tkn_e || (strlen(fullpath) - ref->path_consumed)) {
strncat(mountdata, &sep, 1);
strcat(mountdata, "prefixpath=");
if (tkn_e)
strcat(mountdata, tkn_e + 1);
strcat(mountdata, fullpath + ref->path_consumed);
}
/*cFYI(1, "%s: parent mountdata: %s", __func__,sb_mountdata);*/
/*cFYI(1, "%s: submount mountdata: %s", __func__, mountdata );*/
compose_mount_options_out:
kfree(srvIP);
return mountdata;
compose_mount_options_err:
kfree(mountdata);
mountdata = ERR_PTR(rc);
goto compose_mount_options_out;
}
/**
* cifs_dfs_do_refmount - mounts specified path using provided refferal
* @cifs_sb: parent/root superblock
* @fullpath: full path in UNC format
* @ref: server's referral
*/
static struct vfsmount *cifs_dfs_do_refmount(struct cifs_sb_info *cifs_sb,
const char *fullpath, const struct dfs_info3_param *ref)
{
struct vfsmount *mnt;
char *mountdata;
char *devname = NULL;
/* strip first '\' from fullpath */
mountdata = cifs_compose_mount_options(cifs_sb->mountdata,
fullpath + 1, ref, &devname);
if (IS_ERR(mountdata))
return (struct vfsmount *)mountdata;
mnt = vfs_kern_mount(&cifs_fs_type, 0, devname, mountdata);
kfree(mountdata);
kfree(devname);
return mnt;
}
static void dump_referral(const struct dfs_info3_param *ref)
{
cFYI(1, "DFS: ref path: %s", ref->path_name);
cFYI(1, "DFS: node path: %s", ref->node_name);
cFYI(1, "DFS: fl: %hd, srv_type: %hd", ref->flags, ref->server_type);
cFYI(1, "DFS: ref_flags: %hd, path_consumed: %hd", ref->ref_flag,
ref->path_consumed);
}
/*
* Create a vfsmount that we can automount
*/
static struct vfsmount *cifs_dfs_do_automount(struct dentry *mntpt)
{
struct dfs_info3_param *referrals = NULL;
unsigned int num_referrals = 0;
struct cifs_sb_info *cifs_sb;
struct cifs_ses *ses;
char *full_path;
int xid, i;
int rc;
struct vfsmount *mnt;
struct tcon_link *tlink;
cFYI(1, "in %s", __func__);
BUG_ON(IS_ROOT(mntpt));
/*
* The MSDFS spec states that paths in DFS referral requests and
* responses must be prefixed by a single '\' character instead of
* the double backslashes usually used in the UNC. This function
* gives us the latter, so we must adjust the result.
*/
mnt = ERR_PTR(-ENOMEM);
full_path = build_path_from_dentry(mntpt);
if (full_path == NULL)
goto cdda_exit;
cifs_sb = CIFS_SB(mntpt->d_inode->i_sb);
tlink = cifs_sb_tlink(cifs_sb);
if (IS_ERR(tlink)) {
mnt = ERR_CAST(tlink);
goto free_full_path;
}
ses = tlink_tcon(tlink)->ses;
xid = GetXid();
rc = get_dfs_path(xid, ses, full_path + 1, cifs_sb->local_nls,
&num_referrals, &referrals,
cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
FreeXid(xid);
cifs_put_tlink(tlink);
mnt = ERR_PTR(-ENOENT);
for (i = 0; i < num_referrals; i++) {
int len;
dump_referral(referrals + i);
/* connect to a node */
len = strlen(referrals[i].node_name);
if (len < 2) {
cERROR(1, "%s: Net Address path too short: %s",
__func__, referrals[i].node_name);
mnt = ERR_PTR(-EINVAL);
break;
}
mnt = cifs_dfs_do_refmount(cifs_sb,
full_path, referrals + i);
cFYI(1, "%s: cifs_dfs_do_refmount:%s , mnt:%p", __func__,
referrals[i].node_name, mnt);
if (!IS_ERR(mnt))
goto success;
}
/* no valid submounts were found; return error from get_dfs_path() by
* preference */
if (rc != 0)
mnt = ERR_PTR(rc);
success:
free_dfs_info_array(referrals, num_referrals);
free_full_path:
kfree(full_path);
cdda_exit:
cFYI(1, "leaving %s" , __func__);
return mnt;
}
/*
* Attempt to automount the referral
*/
struct vfsmount *cifs_dfs_d_automount(struct path *path)
{
struct vfsmount *newmnt;
cFYI(1, "in %s", __func__);
newmnt = cifs_dfs_do_automount(path->dentry);
if (IS_ERR(newmnt)) {
cFYI(1, "leaving %s [automount failed]" , __func__);
return newmnt;
}
mntget(newmnt); /* prevent immediate expiration */
mnt_set_expiry(newmnt, &cifs_dfs_automount_list);
schedule_delayed_work(&cifs_dfs_automount_task,
cifs_dfs_mountpoint_expiry_timeout);
cFYI(1, "leaving %s [ok]" , __func__);
return newmnt;
}
const struct inode_operations cifs_dfs_referral_inode_operations = {
};
sources/3.0/cifs_fs_sb.h 0 → 100644
View file @ 5d5011db
/*
* fs/cifs/cifs_fs_sb.h
*
* Copyright (c) International Business Machines Corp., 2002,2004
* Author(s): Steve French (sfrench@us.ibm.com)
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library 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 Lesser General Public License for more details.
*
*/
#include <linux/rbtree.h>
#ifndef _CIFS_FS_SB_H
#define _CIFS_FS_SB_H
#include <linux/backing-dev.h>
#define CIFS_MOUNT_NO_PERM 1 /* do not do client vfs_perm check */
#define CIFS_MOUNT_SET_UID 2 /* set current's euid in create etc. */
#define CIFS_MOUNT_SERVER_INUM 4 /* inode numbers from uniqueid from server */
#define CIFS_MOUNT_DIRECT_IO 8 /* do not write nor read through page cache */
#define CIFS_MOUNT_NO_XATTR 0x10 /* if set - disable xattr support */
#define CIFS_MOUNT_MAP_SPECIAL_CHR 0x20 /* remap illegal chars in filenames */
#define CIFS_MOUNT_POSIX_PATHS 0x40 /* Negotiate posix pathnames if possible*/
#define CIFS_MOUNT_UNX_EMUL 0x80 /* Network compat with SFUnix emulation */
#define CIFS_MOUNT_NO_BRL 0x100 /* No sending byte range locks to srv */
#define CIFS_MOUNT_CIFS_ACL 0x200 /* send ACL requests to non-POSIX srv */
#define CIFS_MOUNT_OVERR_UID 0x400 /* override uid returned from server */
#define CIFS_MOUNT_OVERR_GID 0x800 /* override gid returned from server */
#define CIFS_MOUNT_DYNPERM 0x1000 /* allow in-memory only mode setting */
#define CIFS_MOUNT_NOPOSIXBRL 0x2000 /* mandatory not posix byte range lock */
#define CIFS_MOUNT_NOSSYNC 0x4000 /* don't do slow SMBflush on every sync*/
#define CIFS_MOUNT_FSCACHE 0x8000 /* local caching enabled */
#define CIFS_MOUNT_MF_SYMLINKS 0x10000 /* Minshall+French Symlinks enabled */
#define CIFS_MOUNT_MULTIUSER 0x20000 /* multiuser mount */
#define CIFS_MOUNT_STRICT_IO 0x40000 /* strict cache mode */
#define CIFS_MOUNT_RWPIDFORWARD 0x80000 /* use pid forwarding for rw */
#define CIFS_MOUNT_POSIXACL 0x100000 /* mirror of MS_POSIXACL in mnt_cifs_flags */
struct cifs_sb_info {
struct rb_root tlink_tree;
spinlock_t tlink_tree_lock;
struct tcon_link *master_tlink;
struct nls_table *local_nls;
unsigned int rsize;
unsigned int wsize;
unsigned long actimeo; /* attribute cache timeout (jiffies) */
atomic_t active;
uid_t mnt_uid;
gid_t mnt_gid;
mode_t mnt_file_mode;
mode_t mnt_dir_mode;
unsigned int mnt_cifs_flags;
char *mountdata; /* options received at mount time or via DFS refs */
struct backing_dev_info bdi;
struct delayed_work prune_tlinks;
};
#endif /* _CIFS_FS_SB_H */
sources/3.0/cifs_spnego.c 0 → 100644
View file @ 5d5011db
/*
* fs/cifs/cifs_spnego.c -- SPNEGO upcall management for CIFS
*
* Copyright (c) 2007 Red Hat, Inc.
* Author(s): Jeff Layton (jlayton@redhat.com)
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library 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 Lesser General Public License for more details.
*
* 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
*/
#include <linux/list.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <keys/user-type.h>
#include <linux/key-type.h>
#include <linux/inet.h>
#include "cifsglob.h"
#include "cifs_spnego.h"
#include "cifs_debug.h"
/* create a new cifs key */
static int
cifs_spnego_key_instantiate(struct key *key, const void *data, size_t datalen)
{
char *payload;
int ret;
ret = -ENOMEM;
payload = kmalloc(datalen, GFP_KERNEL);
if (!payload)
goto error;
/* attach the data */
memcpy(payload, data, datalen);
key->payload.data = payload;
ret = 0;
error:
return ret;
}
static void
cifs_spnego_key_destroy(struct key *key)
{
kfree(key->payload.data);
}
/*
* keytype for CIFS spnego keys
*/
struct key_type cifs_spnego_key_type = {
.name = "cifs.spnego",
.instantiate = cifs_spnego_key_instantiate,
.match = user_match,
.destroy = cifs_spnego_key_destroy,
.describe = user_describe,
};
/* length of longest version string e.g. strlen("ver=0xFF") */
#define MAX_VER_STR_LEN 8
/* length of longest security mechanism name, eg in future could have
* strlen(";sec=ntlmsspi") */
#define MAX_MECH_STR_LEN 13
/* strlen of "host=" */
#define HOST_KEY_LEN 5
/* strlen of ";ip4=" or ";ip6=" */
#define IP_KEY_LEN 5
/* strlen of ";uid=0x" */
#define UID_KEY_LEN 7
/* strlen of ";creduid=0x" */
#define CREDUID_KEY_LEN 11
/* strlen of ";user=" */
#define USER_KEY_LEN 6
/* strlen of ";pid=0x" */
#define PID_KEY_LEN 7
/* get a key struct with a SPNEGO security blob, suitable for session setup */
struct key *
cifs_get_spnego_key(struct cifs_ses *sesInfo)
{
struct TCP_Server_Info *server = sesInfo->server;
struct sockaddr_in *sa = (struct sockaddr_in *) &server->dstaddr;
struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *) &server->dstaddr;
char *description, *dp;
size_t desc_len;
struct key *spnego_key;
const char *hostname = server->hostname;
/* length of fields (with semicolons): ver=0xyz ip4=ipaddress
host=hostname sec=mechanism uid=0xFF user=username */
desc_len = MAX_VER_STR_LEN +
HOST_KEY_LEN + strlen(hostname) +
IP_KEY_LEN + INET6_ADDRSTRLEN +
MAX_MECH_STR_LEN +
UID_KEY_LEN + (sizeof(uid_t) * 2) +
CREDUID_KEY_LEN + (sizeof(uid_t) * 2) +
USER_KEY_LEN + strlen(sesInfo->user_name) +
PID_KEY_LEN + (sizeof(pid_t) * 2) + 1;
spnego_key = ERR_PTR(-ENOMEM);
description = kzalloc(desc_len, GFP_KERNEL);
if (description == NULL)
goto out;
dp = description;
/* start with version and hostname portion of UNC string */
spnego_key = ERR_PTR(-EINVAL);
sprintf(dp, "ver=0x%x;host=%s;", CIFS_SPNEGO_UPCALL_VERSION,
hostname);
dp = description + strlen(description);
/* add the server address */
if (server->dstaddr.ss_family == AF_INET)
sprintf(dp, "ip4=%pI4", &sa->sin_addr);
else if (server->dstaddr.ss_family == AF_INET6)
sprintf(dp, "ip6=%pI6", &sa6->sin6_addr);
else
goto out;
dp = description + strlen(description);
/* for now, only sec=krb5 and sec=mskrb5 are valid */
if (server->sec_kerberos)
sprintf(dp, ";sec=krb5");
else if (server->sec_mskerberos)
sprintf(dp, ";sec=mskrb5");
else
goto out;
dp = description + strlen(description);
sprintf(dp, ";uid=0x%x", sesInfo->linux_uid);
dp = description + strlen(description);
sprintf(dp, ";creduid=0x%x", sesInfo->cred_uid);
dp = description + strlen(description);
sprintf(dp, ";user=%s", sesInfo->user_name);
dp = description + strlen(description);
sprintf(dp, ";pid=0x%x", current->pid);
cFYI(1, "key description = %s", description);
spnego_key = request_key(&cifs_spnego_key_type, description, "");
#ifdef CONFIG_CIFS_DEBUG2
if (cifsFYI && !IS_ERR(spnego_key)) {
struct cifs_spnego_msg *msg = spnego_key->payload.data;
cifs_dump_mem("SPNEGO reply blob:", msg->data, min(1024U,
msg->secblob_len + msg->sesskey_len));
}
#endif /* CONFIG_CIFS_DEBUG2 */
out:
kfree(description);
return spnego_key;
}
sources/3.0/cifs_spnego.h 0 → 100644
View file @ 5d5011db
/*
* fs/cifs/cifs_spnego.h -- SPNEGO upcall management for CIFS
*
* Copyright (c) 2007 Red Hat, Inc.
* Author(s): Jeff Layton (jlayton@redhat.com)
* Steve French (sfrench@us.ibm.com)
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library 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 Lesser General Public License for more details.
*
* 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
*/
#ifndef _CIFS_SPNEGO_H
#define _CIFS_SPNEGO_H
#define CIFS_SPNEGO_UPCALL_VERSION 2
/*
* The version field should always be set to CIFS_SPNEGO_UPCALL_VERSION.
* The flags field is for future use. The request-key callout should set
* sesskey_len and secblob_len, and then concatenate the SessKey+SecBlob
* and stuff it in the data field.
*/
struct cifs_spnego_msg {
uint32_t version;
uint32_t flags;
uint32_t sesskey_len;
uint32_t secblob_len;
uint8_t data[1];
};
#ifdef __KERNEL__
extern struct key_type cifs_spnego_key_type;
extern struct key *cifs_get_spnego_key(struct cifs_ses *sesInfo);
#endif /* KERNEL */
#endif /* _CIFS_SPNEGO_H */
sources/3.0/cifs_unicode.c 0 → 100644
View file @ 5d5011db
/*
* fs/cifs/cifs_unicode.c
*
* Copyright (c) International Business Machines Corp., 2000,2009
* Modified by Steve French (sfrench@us.ibm.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/fs.h>
#include <linux/slab.h>
#include "cifs_unicode.h"
#include "cifs_uniupr.h"
#include "cifspdu.h"
#include "cifsglob.h"
#include "cifs_debug.h"
/*
* cifs_ucs2_bytes - how long will a string be after conversion?
* @ucs - pointer to input string
* @maxbytes - don't go past this many bytes of input string
* @codepage - destination codepage
*
* Walk a ucs2le string and return the number of bytes that the string will
* be after being converted to the given charset, not including any null
* termination required. Don't walk past maxbytes in the source buffer.
*/
int
cifs_ucs2_bytes(const __le16 *from, int maxbytes,
const struct nls_table *codepage)
{
int i;
int charlen, outlen = 0;
int maxwords = maxbytes / 2;
char tmp[NLS_MAX_CHARSET_SIZE];
__u16 ftmp;
for (i = 0; i < maxwords; i++) {
ftmp = get_unaligned_le16(&from[i]);
if (ftmp == 0)
break;
charlen = codepage->uni2char(ftmp, tmp, NLS_MAX_CHARSET_SIZE);
if (charlen > 0)
outlen += charlen;
else
outlen++;
}
return outlen;
}
/*
* cifs_mapchar - convert a host-endian char to proper char in codepage
* @target - where converted character should be copied
* @src_char - 2 byte host-endian source character
* @cp - codepage to which character should be converted
* @mapchar - should character be mapped according to mapchars mount option?
*
* This function handles the conversion of a single character. It is the
* responsibility of the caller to ensure that the target buffer is large
* enough to hold the result of the conversion (at least NLS_MAX_CHARSET_SIZE).
*/
static int
cifs_mapchar(char *target, const __u16 src_char, const struct nls_table *cp,
bool mapchar)
{
int len = 1;
if (!mapchar)
goto cp_convert;
/*
* BB: Cannot handle remapping UNI_SLASH until all the calls to
* build_path_from_dentry are modified, as they use slash as
* separator.
*/
switch (src_char) {
case UNI_COLON:
*target = ':';
break;
case UNI_ASTERISK:
*target = '*';
break;
case UNI_QUESTION:
*target = '?';
break;
case UNI_PIPE:
*target = '|';
break;
case UNI_GRTRTHAN:
*target = '>';
break;
case UNI_LESSTHAN:
*target = '<';
break;
default:
goto cp_convert;
}
out:
return len;
cp_convert:
len = cp->uni2char(src_char, target, NLS_MAX_CHARSET_SIZE);
if (len <= 0) {
*target = '?';
len = 1;
}
goto out;
}
/*
* cifs_from_ucs2 - convert utf16le string to local charset
* @to - destination buffer
* @from - source buffer
* @tolen - destination buffer size (in bytes)
* @fromlen - source buffer size (in bytes)
* @codepage - codepage to which characters should be converted
* @mapchar - should characters be remapped according to the mapchars option?
*
* Convert a little-endian ucs2le string (as sent by the server) to a string
* in the provided codepage. The tolen and fromlen parameters are to ensure
* that the code doesn't walk off of the end of the buffer (which is always
* a danger if the alignment of the source buffer is off). The destination
* string is always properly null terminated and fits in the destination
* buffer. Returns the length of the destination string in bytes (including
* null terminator).
*
* Note that some windows versions actually send multiword UTF-16 characters
* instead of straight UCS-2. The linux nls routines however aren't able to
* deal with those characters properly. In the event that we get some of
* those characters, they won't be translated properly.
*/
int
cifs_from_ucs2(char *to, const __le16 *from, int tolen, int fromlen,
const struct nls_table *codepage, bool mapchar)
{
int i, charlen, safelen;
int outlen = 0;
int nullsize = nls_nullsize(codepage);
int fromwords = fromlen / 2;
char tmp[NLS_MAX_CHARSET_SIZE];
__u16 ftmp;
/*
* because the chars can be of varying widths, we need to take care
* not to overflow the destination buffer when we get close to the
* end of it. Until we get to this offset, we don't need to check
* for overflow however.
*/
safelen = tolen - (NLS_MAX_CHARSET_SIZE + nullsize);
for (i = 0; i < fromwords; i++) {
ftmp = get_unaligned_le16(&from[i]);
if (ftmp == 0)
break;
/*
* check to see if converting this character might make the
* conversion bleed into the null terminator
*/
if (outlen >= safelen) {
charlen = cifs_mapchar(tmp, ftmp, codepage, mapchar);
if ((outlen + charlen) > (tolen - nullsize))
break;
}
/* put converted char into 'to' buffer */
charlen = cifs_mapchar(&to[outlen], ftmp, codepage, mapchar);
outlen += charlen;
}
/* properly null-terminate string */
for (i = 0; i < nullsize; i++)
to[outlen++] = 0;
return outlen;
}
/*
* NAME: cifs_strtoUCS()
*
* FUNCTION: Convert character string to unicode string
*
*/
int
cifs_strtoUCS(__le16 *to, const char *from, int len,
const struct nls_table *codepage)
{
int charlen;
int i;
wchar_t wchar_to; /* needed to quiet sparse */
for (i = 0; len && *from; i++, from += charlen, len -= charlen) {
charlen = codepage->char2uni(from, len, &wchar_to);
if (charlen < 1) {
cERROR(1, "strtoUCS: char2uni of 0x%x returned %d",
*from, charlen);
/* A question mark */
wchar_to = 0x003f;
charlen = 1;
}
put_unaligned_le16(wchar_to, &to[i]);
}
put_unaligned_le16(0, &to[i]);
return i;
}
/*
* cifs_strndup_from_ucs - copy a string from wire format to the local codepage
* @src - source string
* @maxlen - don't walk past this many bytes in the source string
* @is_unicode - is this a unicode string?
* @codepage - destination codepage
*
* Take a string given by the server, convert it to the local codepage and
* put it in a new buffer. Returns a pointer to the new string or NULL on
* error.
*/
char *
cifs_strndup_from_ucs(const char *src, const int maxlen, const bool is_unicode,
const struct nls_table *codepage)
{
int len;
char *dst;
if (is_unicode) {
len = cifs_ucs2_bytes((__le16 *) src, maxlen, codepage);
len += nls_nullsize(codepage);
dst = kmalloc(len, GFP_KERNEL);
if (!dst)
return NULL;
cifs_from_ucs2(dst, (__le16 *) src, len, maxlen, codepage,
false);
} else {
len = strnlen(src, maxlen);
len++;
dst = kmalloc(len, GFP_KERNEL);
if (!dst)
return NULL;
strlcpy(dst, src, len);
}
return dst;
}
/*
* Convert 16 bit Unicode pathname to wire format from string in current code
* page. Conversion may involve remapping up the six characters that are
* only legal in POSIX-like OS (if they are present in the string). Path
* names are little endian 16 bit Unicode on the wire
*/
int
cifsConvertToUCS(__le16 *target, const char *source, int srclen,
const struct nls_table *cp, int mapChars)
{
int i, j, charlen;
char src_char;
__le16 dst_char;
wchar_t tmp;
if (!mapChars)
return cifs_strtoUCS(target, source, PATH_MAX, cp);
for (i = 0, j = 0; i < srclen; j++) {
src_char = source[i];
charlen = 1;
switch (src_char) {
case 0:
put_unaligned(0, &target[j]);
goto ctoUCS_out;
case ':':
dst_char = cpu_to_le16(UNI_COLON);
break;
case '*':
dst_char = cpu_to_le16(UNI_ASTERISK);
break;
case '?':
dst_char = cpu_to_le16(UNI_QUESTION);
break;
case '<':
dst_char = cpu_to_le16(UNI_LESSTHAN);
break;
case '>':
dst_char = cpu_to_le16(UNI_GRTRTHAN);
break;
case '|':
dst_char = cpu_to_le16(UNI_PIPE);
break;
/*
* FIXME: We can not handle remapping backslash (UNI_SLASH)
* until all the calls to build_path_from_dentry are modified,
* as they use backslash as separator.
*/
default:
charlen = cp->char2uni(source + i, srclen - i, &tmp);
dst_char = cpu_to_le16(tmp);
/*
* if no match, use question mark, which at least in
* some cases serves as wild card
*/
if (charlen < 1) {
dst_char = cpu_to_le16(0x003f);
charlen = 1;
}
}
/*
* character may take more than one byte in the source string,
* but will take exactly two bytes in the target string
*/
i += charlen;
put_unaligned(dst_char, &target[j]);
}
ctoUCS_out:
return i;
}
sources/3.0/cifs_unicode.h 0 → 100644
View file @ 5d5011db
/*
* cifs_unicode: Unicode kernel case support
*
* Function:
* Convert a unicode character to upper or lower case using
* compressed tables.
*
* Copyright (c) International Business Machines Corp., 2000,2009
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*
* Notes:
* These APIs are based on the C library functions. The semantics
* should match the C functions but with expanded size operands.
*
* The upper/lower functions are based on a table created by mkupr.
* This is a compressed table of upper and lower case conversion.
*
*/
#ifndef _CIFS_UNICODE_H
#define _CIFS_UNICODE_H
#include <asm/byteorder.h>
#include <linux/types.h>
#include <linux/nls.h>
#define UNIUPR_NOLOWER /* Example to not expand lower case tables */
/*
* Windows maps these to the user defined 16 bit Unicode range since they are
* reserved symbols (along with \ and /), otherwise illegal to store
* in filenames in NTFS
*/
#define UNI_ASTERISK (__u16) ('*' + 0xF000)
#define UNI_QUESTION (__u16) ('?' + 0xF000)
#define UNI_COLON (__u16) (':' + 0xF000)
#define UNI_GRTRTHAN (__u16) ('>' + 0xF000)
#define UNI_LESSTHAN (__u16) ('<' + 0xF000)
#define UNI_PIPE (__u16) ('|' + 0xF000)
#define UNI_SLASH (__u16) ('\\' + 0xF000)
/* Just define what we want from uniupr.h. We don't want to define the tables
* in each source file.
*/
#ifndef UNICASERANGE_DEFINED
struct UniCaseRange {
wchar_t start;
wchar_t end;
signed char *table;
};
#endif /* UNICASERANGE_DEFINED */
#ifndef UNIUPR_NOUPPER
extern signed char CifsUniUpperTable[512];
extern const struct UniCaseRange CifsUniUpperRange[];
#endif /* UNIUPR_NOUPPER */
#ifndef UNIUPR_NOLOWER
extern signed char CifsUniLowerTable[512];
extern const struct UniCaseRange CifsUniLowerRange[];
#endif /* UNIUPR_NOLOWER */
#ifdef __KERNEL__
int cifs_from_ucs2(char *to, const __le16 *from, int tolen, int fromlen,
const struct nls_table *codepage, bool mapchar);
int cifs_ucs2_bytes(const __le16 *from, int maxbytes,
const struct nls_table *codepage);
int cifs_strtoUCS(__le16 *, const char *, int, const struct nls_table *);
char *cifs_strndup_from_ucs(const char *src, const int maxlen,
const bool is_unicode,
const struct nls_table *codepage);
extern int cifsConvertToUCS(__le16 *target, const char *source, int maxlen,
const struct nls_table *cp, int mapChars);
#endif
/*
* UniStrcat: Concatenate the second string to the first
*
* Returns:
* Address of the first string
*/
static inline wchar_t *
UniStrcat(wchar_t *ucs1, const wchar_t *ucs2)
{
wchar_t *anchor = ucs1; /* save a pointer to start of ucs1 */
while (*ucs1++) ; /* To end of first string */
ucs1--; /* Return to the null */
while ((*ucs1++ = *ucs2++)) ; /* copy string 2 over */
return anchor;
}
/*
* UniStrchr: Find a character in a string
*
* Returns:
* Address of first occurrence of character in string
* or NULL if the character is not in the string
*/
static inline wchar_t *
UniStrchr(const wchar_t *ucs, wchar_t uc)
{
while ((*ucs != uc) && *ucs)
ucs++;
if (*ucs == uc)
return (wchar_t *) ucs;
return NULL;
}
/*
* UniStrcmp: Compare two strings
*
* Returns:
* < 0: First string is less than second
* = 0: Strings are equal
* > 0: First string is greater than second
*/
static inline int
UniStrcmp(const wchar_t *ucs1, const wchar_t *ucs2)
{
while ((*ucs1 == *ucs2) && *ucs1) {
ucs1++;
ucs2++;
}
return (int) *ucs1 - (int) *ucs2;
}
/*
* UniStrcpy: Copy a string
*/
static inline wchar_t *
UniStrcpy(wchar_t *ucs1, const wchar_t *ucs2)
{
wchar_t *anchor = ucs1; /* save the start of result string */
while ((*ucs1++ = *ucs2++)) ;
return anchor;
}
/*
* UniStrlen: Return the length of a string (in 16 bit Unicode chars not bytes)
*/
static inline size_t
UniStrlen(const wchar_t *ucs1)
{
int i = 0;
while (*ucs1++)
i++;
return i;
}
/*
* UniStrnlen: Return the length (in 16 bit Unicode chars not bytes) of a
* string (length limited)
*/
static inline size_t
UniStrnlen(const wchar_t *ucs1, int maxlen)
{
int i = 0;
while (*ucs1++) {
i++;
if (i >= maxlen)
break;
}
return i;
}
/*
* UniStrncat: Concatenate length limited string
*/
static inline wchar_t *
UniStrncat(wchar_t *ucs1, const wchar_t *ucs2, size_t n)
{
wchar_t *anchor = ucs1; /* save pointer to string 1 */
while (*ucs1++) ;
ucs1--; /* point to null terminator of s1 */
while (n-- && (*ucs1 = *ucs2)) { /* copy s2 after s1 */
ucs1++;
ucs2++;
}
*ucs1 = 0; /* Null terminate the result */
return (anchor);
}
/*
* UniStrncmp: Compare length limited string
*/
static inline int
UniStrncmp(const wchar_t *ucs1, const wchar_t *ucs2, size_t n)
{
if (!n)
return 0; /* Null strings are equal */
while ((*ucs1 == *ucs2) && *ucs1 && --n) {
ucs1++;
ucs2++;
}
return (int) *ucs1 - (int) *ucs2;
}
/*
* UniStrncmp_le: Compare length limited string - native to little-endian
*/
static inline int
UniStrncmp_le(const wchar_t *ucs1, const wchar_t *ucs2, size_t n)
{
if (!n)
return 0; /* Null strings are equal */
while ((*ucs1 == __le16_to_cpu(*ucs2)) && *ucs1 && --n) {
ucs1++;
ucs2++;
}
return (int) *ucs1 - (int) __le16_to_cpu(*ucs2);
}
/*
* UniStrncpy: Copy length limited string with pad
*/
static inline wchar_t *
UniStrncpy(wchar_t *ucs1, const wchar_t *ucs2, size_t n)
{
wchar_t *anchor = ucs1;
while (n-- && *ucs2) /* Copy the strings */
*ucs1++ = *ucs2++;
n++;
while (n--) /* Pad with nulls */
*ucs1++ = 0;
return anchor;
}
/*
* UniStrncpy_le: Copy length limited string with pad to little-endian
*/
static inline wchar_t *
UniStrncpy_le(wchar_t *ucs1, const wchar_t *ucs2, size_t n)
{
wchar_t *anchor = ucs1;
while (n-- && *ucs2) /* Copy the strings */
*ucs1++ = __le16_to_cpu(*ucs2++);
n++;
while (n--) /* Pad with nulls */
*ucs1++ = 0;
return anchor;
}
/*
* UniStrstr: Find a string in a string
*
* Returns:
* Address of first match found
* NULL if no matching string is found
*/
static inline wchar_t *
UniStrstr(const wchar_t *ucs1, const wchar_t *ucs2)
{
const wchar_t *anchor1 = ucs1;
const wchar_t *anchor2 = ucs2;
while (*ucs1) {
if (*ucs1 == *ucs2) {
/* Partial match found */
ucs1++;
ucs2++;
} else {
if (!*ucs2) /* Match found */
return (wchar_t *) anchor1;
ucs1 = ++anchor1; /* No match */
ucs2 = anchor2;
}
}
if (!*ucs2) /* Both end together */
return (wchar_t *) anchor1; /* Match found */
return NULL; /* No match */
}
#ifndef UNIUPR_NOUPPER
/*
* UniToupper: Convert a unicode character to upper case
*/
static inline wchar_t
UniToupper(register wchar_t uc)
{
register const struct UniCaseRange *rp;
if (uc < sizeof(CifsUniUpperTable)) {
/* Latin characters */
return uc + CifsUniUpperTable[uc]; /* Use base tables */
} else {
rp = CifsUniUpperRange; /* Use range tables */
while (rp->start) {
if (uc < rp->start) /* Before start of range */
return uc; /* Uppercase = input */
if (uc <= rp->end) /* In range */
return uc + rp->table[uc - rp->start];
rp++; /* Try next range */
}
}
return uc; /* Past last range */
}
/*
* UniStrupr: Upper case a unicode string
*/
static inline wchar_t *
UniStrupr(register wchar_t *upin)
{
register wchar_t *up;
up = upin;
while (*up) { /* For all characters */
*up = UniToupper(*up);
up++;
}
return upin; /* Return input pointer */
}
#endif /* UNIUPR_NOUPPER */
#ifndef UNIUPR_NOLOWER
/*
* UniTolower: Convert a unicode character to lower case
*/
static inline wchar_t
UniTolower(register wchar_t uc)
{
register const struct UniCaseRange *rp;
if (uc < sizeof(CifsUniLowerTable)) {
/* Latin characters */
return uc + CifsUniLowerTable[uc]; /* Use base tables */
} else {
rp = CifsUniLowerRange; /* Use range tables */
while (rp->start) {
if (uc < rp->start) /* Before start of range */
return uc; /* Uppercase = input */
if (uc <= rp->end) /* In range */
return uc + rp->table[uc - rp->start];
rp++; /* Try next range */
}
}
return uc; /* Past last range */
}
/*
* UniStrlwr: Lower case a unicode string
*/
static inline wchar_t *
UniStrlwr(register wchar_t *upin)
{
register wchar_t *up;
up = upin;
while (*up) { /* For all characters */
*up = UniTolower(*up);
up++;
}
return upin; /* Return input pointer */
}
#endif
#endif /* _CIFS_UNICODE_H */
sources/3.0/cifsacl.h 0 → 100644
View file @ 5d5011db
/*
* fs/cifs/cifsacl.h
*
* Copyright (c) International Business Machines Corp., 2007
* Author(s): Steve French (sfrench@us.ibm.com)
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library 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 Lesser General Public License for more details.
*
* 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
*/
#ifndef _CIFSACL_H
#define _CIFSACL_H
#define NUM_AUTHS 6 /* number of authority fields */
#define NUM_SUBAUTHS 5 /* number of sub authority fields */
#define NUM_WK_SIDS 7 /* number of well known sids */
#define SIDNAMELENGTH 20 /* long enough for the ones we care about */
#define DEFSECDESCLEN 192 /* sec desc len contaiting a dacl with three aces */
#define READ_BIT 0x4
#define WRITE_BIT 0x2
#define EXEC_BIT 0x1
#define UBITSHIFT 6
#define GBITSHIFT 3
#define ACCESS_ALLOWED 0
#define ACCESS_DENIED 1
#define SIDOWNER 1
#define SIDGROUP 2
#define SIDLEN 150 /* S- 1 revision- 6 authorities- max 5 sub authorities */
#define SID_ID_MAPPED 0
#define SID_ID_PENDING 1
#define SID_MAP_EXPIRE (3600 * HZ) /* map entry expires after one hour */
#define SID_MAP_RETRY (300 * HZ) /* wait 5 minutes for next attempt to map */
struct cifs_ntsd {
__le16 revision; /* revision level */
__le16 type;
__le32 osidoffset;
__le32 gsidoffset;
__le32 sacloffset;
__le32 dacloffset;
} __attribute__((packed));
struct cifs_sid {
__u8 revision; /* revision level */
__u8 num_subauth;
__u8 authority[6];
__le32 sub_auth[5]; /* sub_auth[num_subauth] */
} __attribute__((packed));
struct cifs_acl {
__le16 revision; /* revision level */
__le16 size;
__le32 num_aces;
} __attribute__((packed));
struct cifs_ace {
__u8 type;
__u8 flags;
__le16 size;
__le32 access_req;
struct cifs_sid sid; /* ie UUID of user or group who gets these perms */
} __attribute__((packed));
struct cifs_wksid {
struct cifs_sid cifssid;
char sidname[SIDNAMELENGTH];
} __attribute__((packed));
struct cifs_sid_id {
unsigned int refcount; /* increment with spinlock, decrement without */
unsigned long id;
unsigned long time;
unsigned long state;
char *sidstr;
struct rb_node rbnode;
struct cifs_sid sid;
};
#ifdef __KERNEL__
extern struct key_type cifs_idmap_key_type;
extern const struct cred *root_cred;
#endif /* KERNEL */
extern int compare_sids(const struct cifs_sid *, const struct cifs_sid *);
#endif /* _CIFSACL_H */
sources/3.0/cifsfs.h 0 → 100644
View file @ 5d5011db
/*
* fs/cifs/cifsfs.h
*
* Copyright (c) International Business Machines Corp., 2002, 2007
* Author(s): Steve French (sfrench@us.ibm.com)
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library 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 Lesser General Public License for more details.
*
* 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
*/
#ifndef _CIFSFS_H
#define _CIFSFS_H
#define ROOT_I 2
/*
* ino_t is 32-bits on 32-bit arch. We have to squash the 64-bit value down
* so that it will fit.
*/
static inline ino_t
cifs_uniqueid_to_ino_t(u64 fileid)
{
ino_t ino = (ino_t) fileid;
if (sizeof(ino_t) < sizeof(u64))
ino ^= fileid >> (sizeof(u64)-sizeof(ino_t)) * 8;
return ino;
}
extern struct file_system_type cifs_fs_type;
extern const struct address_space_operations cifs_addr_ops;
extern const struct address_space_operations cifs_addr_ops_smallbuf;
/* Functions related to super block operations */
extern void cifs_sb_active(struct super_block *sb);
extern void cifs_sb_deactive(struct super_block *sb);
/* Functions related to inodes */
extern const struct inode_operations cifs_dir_inode_ops;
extern struct inode *cifs_root_iget(struct super_block *);
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 *dir, struct dentry *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 *,
struct dentry *);
extern int cifs_revalidate_file_attr(struct file *filp);
extern int cifs_revalidate_dentry_attr(struct dentry *);
extern int cifs_revalidate_file(struct file *filp);
extern int cifs_revalidate_dentry(struct dentry *);
extern int cifs_invalidate_mapping(struct inode *inode);
extern int cifs_getattr(struct vfsmount *, struct dentry *, struct kstat *);
extern int cifs_setattr(struct dentry *, struct iattr *);
extern const struct inode_operations cifs_file_inode_ops;
extern const struct inode_operations cifs_symlink_inode_ops;
extern const struct inode_operations cifs_dfs_referral_inode_operations;
/* Functions related to files and directories */
extern const struct file_operations cifs_file_ops;
extern const struct file_operations cifs_file_direct_ops; /* if directio mnt */
extern const struct file_operations cifs_file_strict_ops; /* if strictio mnt */
extern const struct file_operations cifs_file_nobrl_ops; /* no brlocks */
extern const struct file_operations cifs_file_direct_nobrl_ops;
extern const struct file_operations cifs_file_strict_nobrl_ops;
extern int cifs_open(struct inode *inode, struct file *file);
extern int cifs_close(struct inode *inode, struct file *file);
extern int cifs_closedir(struct inode *inode, struct file *file);
extern ssize_t cifs_user_readv(struct kiocb *iocb, const struct iovec *iov,
unsigned long nr_segs, loff_t pos);
extern ssize_t cifs_strict_readv(struct kiocb *iocb, const struct iovec *iov,
unsigned long nr_segs, loff_t pos);
extern ssize_t cifs_user_writev(struct kiocb *iocb, const struct iovec *iov,
unsigned long nr_segs, loff_t pos);
extern ssize_t cifs_strict_writev(struct kiocb *iocb, const struct iovec *iov,
unsigned long nr_segs, loff_t pos);
extern int cifs_lock(struct file *, int, struct file_lock *);
extern int cifs_fsync(struct file *, int);
extern int cifs_strict_fsync(struct file *, int);
extern int cifs_flush(struct file *, fl_owner_t id);
extern int cifs_file_mmap(struct file * , struct vm_area_struct *);
extern int cifs_file_strict_mmap(struct file * , struct vm_area_struct *);
extern const struct file_operations cifs_dir_ops;
extern int cifs_dir_open(struct inode *inode, struct file *file);
extern int cifs_readdir(struct file *file, void *direntry, filldir_t filldir);
/* Functions related to dir entries */
extern const struct dentry_operations cifs_dentry_ops;
extern const struct dentry_operations cifs_ci_dentry_ops;
#ifdef CONFIG_CIFS_DFS_UPCALL
extern struct vfsmount *cifs_dfs_d_automount(struct path *path);
#else
#define cifs_dfs_d_automount NULL
#endif
/* Functions related to symlinks */
extern void *cifs_follow_link(struct dentry *direntry, struct nameidata *nd);
extern void cifs_put_link(struct dentry *direntry,
struct nameidata *nd, void *);
extern int cifs_readlink(struct dentry *direntry, char __user *buffer,
int buflen);
extern int cifs_symlink(struct inode *inode, struct dentry *direntry,
const char *symname);
extern int cifs_removexattr(struct dentry *, const char *);
extern int cifs_setxattr(struct dentry *, const char *, const void *,
size_t, int);
extern ssize_t cifs_getxattr(struct dentry *, const char *, void *, size_t);
extern ssize_t cifs_listxattr(struct dentry *, char *, size_t);
extern long cifs_ioctl(struct file *filep, unsigned int cmd, unsigned long arg);
#ifdef CIFS_NFSD_EXPORT
extern const struct export_operations cifs_export_ops;
#endif /* CIFS_NFSD_EXPORT */
#define CIFS_VERSION "1.74"
#endif /* _CIFSFS_H */
sources/3.0/cifssmb.c 0 → 100644
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sources/3.0/connect.c 0 → 100644
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sources/3.0/dns_resolve.c 0 → 100644
View file @ 5d5011db
/*
* fs/cifs/dns_resolve.c
*
* Copyright (c) 2007 Igor Mammedov
* Author(s): Igor Mammedov (niallain@gmail.com)
* Steve French (sfrench@us.ibm.com)
* Wang Lei (wang840925@gmail.com)
* David Howells (dhowells@redhat.com)
*
* Contains the CIFS DFS upcall routines used for hostname to
* IP address translation.
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library 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 Lesser General Public License for more details.
*
* 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
*/
#include <linux/slab.h>
#include <linux/dns_resolver.h>
#include "dns_resolve.h"
#include "cifsglob.h"
#include "cifsproto.h"
#include "cifs_debug.h"
/**
* dns_resolve_server_name_to_ip - Resolve UNC server name to ip address.
* @unc: UNC path specifying the server
* @ip_addr: Where to return the IP address.
*
* The IP address will be returned in string form, and the caller is
* responsible for freeing it.
*
* Returns length of result on success, -ve on error.
*/
int
dns_resolve_server_name_to_ip(const char *unc, char **ip_addr)
{
struct sockaddr_storage ss;
const char *hostname, *sep;
char *name;
int len, rc;
if (!ip_addr || !unc)
return -EINVAL;
len = strlen(unc);
if (len < 3) {
cFYI(1, "%s: unc is too short: %s", __func__, unc);
return -EINVAL;
}
/* Discount leading slashes for cifs */
len -= 2;
hostname = unc + 2;
/* Search for server name delimiter */
sep = memchr(hostname, '\\', len);
if (sep)
len = sep - hostname;
else
cFYI(1, "%s: probably server name is whole unc: %s",
__func__, unc);
/* Try to interpret hostname as an IPv4 or IPv6 address */
rc = cifs_convert_address((struct sockaddr *)&ss, hostname, len);
if (rc > 0)
goto name_is_IP_address;
/* Perform the upcall */
rc = dns_query(NULL, hostname, len, NULL, ip_addr, NULL);
if (rc < 0)
cERROR(1, "%s: unable to resolve: %*.*s",
__func__, len, len, hostname);
else
cFYI(1, "%s: resolved: %*.*s to %s",
__func__, len, len, hostname, *ip_addr);
return rc;
name_is_IP_address:
name = kmalloc(len + 1, GFP_KERNEL);
if (!name)
return -ENOMEM;
memcpy(name, hostname, len);
name[len] = 0;
cFYI(1, "%s: unc is IP, skipping dns upcall: %s", __func__, name);
*ip_addr = name;
return 0;
}
sources/3.0/dns_resolve.h 0 → 100644
View file @ 5d5011db
/*
* fs/cifs/dns_resolve.h -- DNS Resolver upcall management for CIFS DFS
* Handles host name to IP address resolution
*
* Copyright (c) International Business Machines Corp., 2008
* Author(s): Steve French (sfrench@us.ibm.com)
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library 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 Lesser General Public License for more details.
*
* 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
*/
#ifndef _DNS_RESOLVE_H
#define _DNS_RESOLVE_H
#ifdef __KERNEL__
extern int dns_resolve_server_name_to_ip(const char *unc, char **ip_addr);
#endif /* KERNEL */
#endif /* _DNS_RESOLVE_H */
sources/3.0/export.c 0 → 100644
View file @ 5d5011db
/*
* fs/cifs/export.c
*
* Copyright (C) International Business Machines Corp., 2007
* Author(s): Steve French (sfrench@us.ibm.com)
*
* Common Internet FileSystem (CIFS) client
*
* Operations related to support for exporting files via NFSD
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library 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 Lesser General Public License for more details.
*
* 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
*/
/*
* See Documentation/filesystems/nfs/Exporting
* and examples in fs/exportfs
*
* Since cifs is a network file system, an "fsid" must be included for
* any nfs exports file entries which refer to cifs paths. In addition
* the cifs mount must be mounted with the "serverino" option (ie use stable
* server inode numbers instead of locally generated temporary ones).
* Although cifs inodes do not use generation numbers (have generation number
* of zero) - the inode number alone should be good enough for simple cases
* in which users want to export cifs shares with NFS. The decode and encode
* could be improved by using a new routine which expects 64 bit inode numbers
* instead of the default 32 bit routines in fs/exportfs
*
*/
#include <linux/fs.h>
#include <linux/exportfs.h>
#include "cifsglob.h"
#include "cifs_debug.h"
#include "cifsfs.h"
#ifdef CIFS_NFSD_EXPORT
static struct dentry *cifs_get_parent(struct dentry *dentry)
{
/* BB need to add code here eventually to enable export via NFSD */
cFYI(1, "get parent for %p", dentry);
return ERR_PTR(-EACCES);
}
const struct export_operations cifs_export_ops = {
.get_parent = cifs_get_parent,
/* Following five export operations are unneeded so far and can default:
.get_dentry =
.get_name =
.find_exported_dentry =
.decode_fh =
.encode_fs = */
};
#endif /* CIFS_NFSD_EXPORT */
sources/3.0/fscache.c 0 → 100644
View file @ 5d5011db
/*
* fs/cifs/fscache.c - CIFS filesystem cache interface
*
* Copyright (c) 2010 Novell, Inc.
* Author(s): Suresh Jayaraman <sjayaraman@suse.de>
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library 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 Lesser General Public License for more details.
*
* 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
*/
#include "fscache.h"
#include "cifsglob.h"
#include "cifs_debug.h"
#include "cifs_fs_sb.h"
void cifs_fscache_get_client_cookie(struct TCP_Server_Info *server)
{
server->fscache =
fscache_acquire_cookie(cifs_fscache_netfs.primary_index,
&cifs_fscache_server_index_def, server);
cFYI(1, "%s: (0x%p/0x%p)", __func__, server,
server->fscache);
}
void cifs_fscache_release_client_cookie(struct TCP_Server_Info *server)
{
cFYI(1, "%s: (0x%p/0x%p)", __func__, server,
server->fscache);
fscache_relinquish_cookie(server->fscache, 0);
server->fscache = NULL;
}
void cifs_fscache_get_super_cookie(struct cifs_tcon *tcon)
{
struct TCP_Server_Info *server = tcon->ses->server;
tcon->fscache =
fscache_acquire_cookie(server->fscache,
&cifs_fscache_super_index_def, tcon);
cFYI(1, "%s: (0x%p/0x%p)", __func__, server->fscache,
tcon->fscache);
}
void cifs_fscache_release_super_cookie(struct cifs_tcon *tcon)
{
cFYI(1, "%s: (0x%p)", __func__, tcon->fscache);
fscache_relinquish_cookie(tcon->fscache, 0);
tcon->fscache = NULL;
}
static void cifs_fscache_enable_inode_cookie(struct inode *inode)
{
struct cifsInodeInfo *cifsi = CIFS_I(inode);
struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
struct cifs_tcon *tcon = cifs_sb_master_tcon(cifs_sb);
if (cifsi->fscache)
return;
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_FSCACHE) {
cifsi->fscache = fscache_acquire_cookie(tcon->fscache,
&cifs_fscache_inode_object_def, cifsi);
cFYI(1, "%s: got FH cookie (0x%p/0x%p)", __func__,
tcon->fscache, cifsi->fscache);
}
}
void cifs_fscache_release_inode_cookie(struct inode *inode)
{
struct cifsInodeInfo *cifsi = CIFS_I(inode);
if (cifsi->fscache) {
cFYI(1, "%s: (0x%p)", __func__, cifsi->fscache);
fscache_relinquish_cookie(cifsi->fscache, 0);
cifsi->fscache = NULL;
}
}
static void cifs_fscache_disable_inode_cookie(struct inode *inode)
{
struct cifsInodeInfo *cifsi = CIFS_I(inode);
if (cifsi->fscache) {
cFYI(1, "%s: (0x%p)", __func__, cifsi->fscache);
fscache_uncache_all_inode_pages(cifsi->fscache, inode);
fscache_relinquish_cookie(cifsi->fscache, 1);
cifsi->fscache = NULL;
}
}
void cifs_fscache_set_inode_cookie(struct inode *inode, struct file *filp)
{
if ((filp->f_flags & O_ACCMODE) != O_RDONLY)
cifs_fscache_disable_inode_cookie(inode);
else
cifs_fscache_enable_inode_cookie(inode);
}
void cifs_fscache_reset_inode_cookie(struct inode *inode)
{
struct cifsInodeInfo *cifsi = CIFS_I(inode);
struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
struct fscache_cookie *old = cifsi->fscache;
if (cifsi->fscache) {
/* retire the current fscache cache and get a new one */
fscache_relinquish_cookie(cifsi->fscache, 1);
cifsi->fscache = fscache_acquire_cookie(
cifs_sb_master_tcon(cifs_sb)->fscache,
&cifs_fscache_inode_object_def,
cifsi);
cFYI(1, "%s: new cookie 0x%p oldcookie 0x%p",
__func__, cifsi->fscache, old);
}
}
int cifs_fscache_release_page(struct page *page, gfp_t gfp)
{
if (PageFsCache(page)) {
struct inode *inode = page->mapping->host;
struct cifsInodeInfo *cifsi = CIFS_I(inode);
cFYI(1, "%s: (0x%p/0x%p)", __func__, page,
cifsi->fscache);
if (!fscache_maybe_release_page(cifsi->fscache, page, gfp))
return 0;
}
return 1;
}
static void cifs_readpage_from_fscache_complete(struct page *page, void *ctx,
int error)
{
cFYI(1, "%s: (0x%p/%d)", __func__, page, error);
if (!error)
SetPageUptodate(page);
unlock_page(page);
}
/*
* Retrieve a page from FS-Cache
*/
int __cifs_readpage_from_fscache(struct inode *inode, struct page *page)
{
int ret;
cFYI(1, "%s: (fsc:%p, p:%p, i:0x%p", __func__,
CIFS_I(inode)->fscache, page, inode);
ret = fscache_read_or_alloc_page(CIFS_I(inode)->fscache, page,
cifs_readpage_from_fscache_complete,
NULL,
GFP_KERNEL);
switch (ret) {
case 0: /* page found in fscache, read submitted */
cFYI(1, "%s: submitted", __func__);
return ret;
case -ENOBUFS: /* page won't be cached */
case -ENODATA: /* page not in cache */
cFYI(1, "%s: %d", __func__, ret);
return 1;
default:
cERROR(1, "unknown error ret = %d", ret);
}
return ret;
}
/*
* Retrieve a set of pages from FS-Cache
*/
int __cifs_readpages_from_fscache(struct inode *inode,
struct address_space *mapping,
struct list_head *pages,
unsigned *nr_pages)
{
int ret;
cFYI(1, "%s: (0x%p/%u/0x%p)", __func__,
CIFS_I(inode)->fscache, *nr_pages, inode);
ret = fscache_read_or_alloc_pages(CIFS_I(inode)->fscache, mapping,
pages, nr_pages,
cifs_readpage_from_fscache_complete,
NULL,
mapping_gfp_mask(mapping));
switch (ret) {
case 0: /* read submitted to the cache for all pages */
cFYI(1, "%s: submitted", __func__);
return ret;
case -ENOBUFS: /* some pages are not cached and can't be */
case -ENODATA: /* some pages are not cached */
cFYI(1, "%s: no page", __func__);
return 1;
default:
cFYI(1, "unknown error ret = %d", ret);
}
return ret;
}
void __cifs_readpage_to_fscache(struct inode *inode, struct page *page)
{
int ret;
cFYI(1, "%s: (fsc: %p, p: %p, i: %p)", __func__,
CIFS_I(inode)->fscache, page, inode);
ret = fscache_write_page(CIFS_I(inode)->fscache, page, GFP_KERNEL);
if (ret != 0)
fscache_uncache_page(CIFS_I(inode)->fscache, page);
}
void __cifs_fscache_invalidate_page(struct page *page, struct inode *inode)
{
struct cifsInodeInfo *cifsi = CIFS_I(inode);
struct fscache_cookie *cookie = cifsi->fscache;
cFYI(1, "%s: (0x%p/0x%p)", __func__, page, cookie);
fscache_wait_on_page_write(cookie, page);
fscache_uncache_page(cookie, page);
}
sources/3.0/fscache.h 0 → 100644
View file @ 5d5011db
/*
* fs/cifs/fscache.h - CIFS filesystem cache interface definitions
*
* Copyright (c) 2010 Novell, Inc.
* Authors(s): Suresh Jayaraman (sjayaraman@suse.de>
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library 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 Lesser General Public License for more details.
*
* 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
*/
#ifndef _CIFS_FSCACHE_H
#define _CIFS_FSCACHE_H
#include <linux/fscache.h>
#include "cifsglob.h"
#ifdef CONFIG_CIFS_FSCACHE
extern struct fscache_netfs cifs_fscache_netfs;
extern const struct fscache_cookie_def cifs_fscache_server_index_def;
extern const struct fscache_cookie_def cifs_fscache_super_index_def;
extern const struct fscache_cookie_def cifs_fscache_inode_object_def;
extern int cifs_fscache_register(void);
extern void cifs_fscache_unregister(void);
/*
* fscache.c
*/
extern void cifs_fscache_get_client_cookie(struct TCP_Server_Info *);
extern void cifs_fscache_release_client_cookie(struct TCP_Server_Info *);
extern void cifs_fscache_get_super_cookie(struct cifs_tcon *);
extern void cifs_fscache_release_super_cookie(struct cifs_tcon *);
extern void cifs_fscache_release_inode_cookie(struct inode *);
extern void cifs_fscache_set_inode_cookie(struct inode *, struct file *);
extern void cifs_fscache_reset_inode_cookie(struct inode *);
extern void __cifs_fscache_invalidate_page(struct page *, struct inode *);
extern int cifs_fscache_release_page(struct page *page, gfp_t gfp);
extern int __cifs_readpage_from_fscache(struct inode *, struct page *);
extern int __cifs_readpages_from_fscache(struct inode *,
struct address_space *,
struct list_head *,
unsigned *);
extern void __cifs_readpage_to_fscache(struct inode *, struct page *);
static inline void cifs_fscache_invalidate_page(struct page *page,
struct inode *inode)
{
if (PageFsCache(page))
__cifs_fscache_invalidate_page(page, inode);
}
static inline int cifs_readpage_from_fscache(struct inode *inode,
struct page *page)
{
if (CIFS_I(inode)->fscache)
return __cifs_readpage_from_fscache(inode, page);
return -ENOBUFS;
}
static inline int cifs_readpages_from_fscache(struct inode *inode,
struct address_space *mapping,
struct list_head *pages,
unsigned *nr_pages)
{
if (CIFS_I(inode)->fscache)
return __cifs_readpages_from_fscache(inode, mapping, pages,
nr_pages);
return -ENOBUFS;
}
static inline void cifs_readpage_to_fscache(struct inode *inode,
struct page *page)
{
if (PageFsCache(page))
__cifs_readpage_to_fscache(inode, page);
}
#else /* CONFIG_CIFS_FSCACHE */
static inline int cifs_fscache_register(void) { return 0; }
static inline void cifs_fscache_unregister(void) {}
static inline void
cifs_fscache_get_client_cookie(struct TCP_Server_Info *server) {}
static inline void
cifs_fscache_release_client_cookie(struct TCP_Server_Info *server) {}
static inline void cifs_fscache_get_super_cookie(struct cifs_tcon *tcon) {}
static inline void
cifs_fscache_release_super_cookie(struct cifs_tcon *tcon) {}
static inline void cifs_fscache_release_inode_cookie(struct inode *inode) {}
static inline void cifs_fscache_set_inode_cookie(struct inode *inode,
struct file *filp) {}
static inline void cifs_fscache_reset_inode_cookie(struct inode *inode) {}
static inline int cifs_fscache_release_page(struct page *page, gfp_t gfp)
{
return 1; /* May release page */
}
static inline void cifs_fscache_invalidate_page(struct page *page,
struct inode *inode) {}
static inline int
cifs_readpage_from_fscache(struct inode *inode, struct page *page)
{
return -ENOBUFS;
}
static inline int cifs_readpages_from_fscache(struct inode *inode,
struct address_space *mapping,
struct list_head *pages,
unsigned *nr_pages)
{
return -ENOBUFS;
}
static inline void cifs_readpage_to_fscache(struct inode *inode,
struct page *page) {}
#endif /* CONFIG_CIFS_FSCACHE */
#endif /* _CIFS_FSCACHE_H */
sources/3.0/ioctl.c 0 → 100644
View file @ 5d5011db
/*
* fs/cifs/ioctl.c
*
* vfs operations that deal with io control
*
* Copyright (C) International Business Machines Corp., 2005,2007
* Author(s): Steve French (sfrench@us.ibm.com)
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library 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 Lesser General Public License for more details.
*
* 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
*/
#include <linux/fs.h>
#include "cifspdu.h"
#include "cifsglob.h"
#include "cifsproto.h"
#include "cifs_debug.h"
#include "cifsfs.h"
#define CIFS_IOC_CHECKUMOUNT _IO(0xCF, 2)
long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
{
struct inode *inode = filep->f_dentry->d_inode;
int rc = -ENOTTY; /* strange error - but the precedent */
int xid;
struct cifs_sb_info *cifs_sb;
#ifdef CONFIG_CIFS_POSIX
struct cifsFileInfo *pSMBFile = filep->private_data;
struct cifs_tcon *tcon;
__u64 ExtAttrBits = 0;
__u64 ExtAttrMask = 0;
__u64 caps;
#endif /* CONFIG_CIFS_POSIX */
xid = GetXid();
cFYI(1, "ioctl file %p cmd %u arg %lu", filep, command, arg);
cifs_sb = CIFS_SB(inode->i_sb);
switch (command) {
case CIFS_IOC_CHECKUMOUNT:
cFYI(1, "User unmount attempted");
if (cifs_sb->mnt_uid == current_uid())
rc = 0;
else {
rc = -EACCES;
cFYI(1, "uids do not match");
}
break;
#ifdef CONFIG_CIFS_POSIX
case FS_IOC_GETFLAGS:
if (pSMBFile == NULL)
break;
tcon = tlink_tcon(pSMBFile->tlink);
caps = le64_to_cpu(tcon->fsUnixInfo.Capability);
if (CIFS_UNIX_EXTATTR_CAP & caps) {
rc = CIFSGetExtAttr(xid, tcon, pSMBFile->netfid,
&ExtAttrBits, &ExtAttrMask);
if (rc == 0)
rc = put_user(ExtAttrBits &
FS_FL_USER_VISIBLE,
(int __user *)arg);
}
break;
case FS_IOC_SETFLAGS:
if (pSMBFile == NULL)
break;
tcon = tlink_tcon(pSMBFile->tlink);
caps = le64_to_cpu(tcon->fsUnixInfo.Capability);
if (CIFS_UNIX_EXTATTR_CAP & caps) {
if (get_user(ExtAttrBits, (int __user *)arg)) {
rc = -EFAULT;
break;
}
/* rc= CIFSGetExtAttr(xid,tcon,pSMBFile->netfid,
extAttrBits, &ExtAttrMask);*/
}
cFYI(1, "set flags not implemented yet");
break;
#endif /* CONFIG_CIFS_POSIX */
default:
cFYI(1, "unsupported ioctl");
break;
}
FreeXid(xid);
return rc;
}
sources/3.0/ntlmssp.h 0 → 100644
View file @ 5d5011db
/*
* fs/cifs/ntlmssp.h
*
* Copyright (c) International Business Machines Corp., 2002,2007
* Author(s): Steve French (sfrench@us.ibm.com)
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library 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 Lesser General Public License for more details.
*
* 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
*/
#define NTLMSSP_SIGNATURE "NTLMSSP"
/* Message Types */
#define NtLmNegotiate cpu_to_le32(1)
#define NtLmChallenge cpu_to_le32(2)
#define NtLmAuthenticate cpu_to_le32(3)
#define UnknownMessage cpu_to_le32(8)
/* Negotiate Flags */
#define NTLMSSP_NEGOTIATE_UNICODE 0x01 /* Text strings are unicode */
#define NTLMSSP_NEGOTIATE_OEM 0x02 /* Text strings are in OEM */
#define NTLMSSP_REQUEST_TARGET 0x04 /* Srv returns its auth realm */
/* define reserved9 0x08 */
#define NTLMSSP_NEGOTIATE_SIGN 0x0010 /* Request signing capability */
#define NTLMSSP_NEGOTIATE_SEAL 0x0020 /* Request confidentiality */
#define NTLMSSP_NEGOTIATE_DGRAM 0x0040
#define NTLMSSP_NEGOTIATE_LM_KEY 0x0080 /* Use LM session key */
/* defined reserved 8 0x0100 */
#define NTLMSSP_NEGOTIATE_NTLM 0x0200 /* NTLM authentication */
#define NTLMSSP_NEGOTIATE_NT_ONLY 0x0400 /* Lanman not allowed */
#define NTLMSSP_ANONYMOUS 0x0800
#define NTLMSSP_NEGOTIATE_DOMAIN_SUPPLIED 0x1000 /* reserved6 */
#define NTLMSSP_NEGOTIATE_WORKSTATION_SUPPLIED 0x2000
#define NTLMSSP_NEGOTIATE_LOCAL_CALL 0x4000 /* client/server same machine */
#define NTLMSSP_NEGOTIATE_ALWAYS_SIGN 0x8000 /* Sign. All security levels */
#define NTLMSSP_TARGET_TYPE_DOMAIN 0x10000
#define NTLMSSP_TARGET_TYPE_SERVER 0x20000
#define NTLMSSP_TARGET_TYPE_SHARE 0x40000
#define NTLMSSP_NEGOTIATE_EXTENDED_SEC 0x80000 /* NB:not related to NTLMv2 pwd*/
/* #define NTLMSSP_REQUEST_INIT_RESP 0x100000 */
#define NTLMSSP_NEGOTIATE_IDENTIFY 0x100000
#define NTLMSSP_REQUEST_ACCEPT_RESP 0x200000 /* reserved5 */
#define NTLMSSP_REQUEST_NON_NT_KEY 0x400000
#define NTLMSSP_NEGOTIATE_TARGET_INFO 0x800000
/* #define reserved4 0x1000000 */
#define NTLMSSP_NEGOTIATE_VERSION 0x2000000 /* we do not set */
/* #define reserved3 0x4000000 */
/* #define reserved2 0x8000000 */
/* #define reserved1 0x10000000 */
#define NTLMSSP_NEGOTIATE_128 0x20000000
#define NTLMSSP_NEGOTIATE_KEY_XCH 0x40000000
#define NTLMSSP_NEGOTIATE_56 0x80000000
/* Define AV Pair Field IDs */
enum av_field_type {
NTLMSSP_AV_EOL = 0,
NTLMSSP_AV_NB_COMPUTER_NAME,
NTLMSSP_AV_NB_DOMAIN_NAME,
NTLMSSP_AV_DNS_COMPUTER_NAME,
NTLMSSP_AV_DNS_DOMAIN_NAME,
NTLMSSP_AV_DNS_TREE_NAME,
NTLMSSP_AV_FLAGS,
NTLMSSP_AV_TIMESTAMP,
NTLMSSP_AV_RESTRICTION,
NTLMSSP_AV_TARGET_NAME,
NTLMSSP_AV_CHANNEL_BINDINGS
};
/* Although typedefs are not commonly used for structure definitions */
/* in the Linux kernel, in this particular case they are useful */
/* to more closely match the standards document for NTLMSSP from */
/* OpenGroup and to make the code more closely match the standard in */
/* appearance */
typedef struct _SECURITY_BUFFER {
__le16 Length;
__le16 MaximumLength;
__le32 BufferOffset; /* offset to buffer */
} __attribute__((packed)) SECURITY_BUFFER;
typedef struct _NEGOTIATE_MESSAGE {
__u8 Signature[sizeof(NTLMSSP_SIGNATURE)];
__le32 MessageType; /* NtLmNegotiate = 1 */
__le32 NegotiateFlags;
SECURITY_BUFFER DomainName; /* RFC 1001 style and ASCII */
SECURITY_BUFFER WorkstationName; /* RFC 1001 and ASCII */
/* SECURITY_BUFFER for version info not present since we
do not set the version is present flag */
char DomainString[0];
/* followed by WorkstationString */
} __attribute__((packed)) NEGOTIATE_MESSAGE, *PNEGOTIATE_MESSAGE;
typedef struct _CHALLENGE_MESSAGE {
__u8 Signature[sizeof(NTLMSSP_SIGNATURE)];
__le32 MessageType; /* NtLmChallenge = 2 */
SECURITY_BUFFER TargetName;
__le32 NegotiateFlags;
__u8 Challenge[CIFS_CRYPTO_KEY_SIZE];
__u8 Reserved[8];
SECURITY_BUFFER TargetInfoArray;
/* SECURITY_BUFFER for version info not present since we
do not set the version is present flag */
} __attribute__((packed)) CHALLENGE_MESSAGE, *PCHALLENGE_MESSAGE;
typedef struct _AUTHENTICATE_MESSAGE {
__u8 Signature[sizeof(NTLMSSP_SIGNATURE)];
__le32 MessageType; /* NtLmsAuthenticate = 3 */
SECURITY_BUFFER LmChallengeResponse;
SECURITY_BUFFER NtChallengeResponse;
SECURITY_BUFFER DomainName;
SECURITY_BUFFER UserName;
SECURITY_BUFFER WorkstationName;
SECURITY_BUFFER SessionKey;
__le32 NegotiateFlags;
/* SECURITY_BUFFER for version info not present since we
do not set the version is present flag */
char UserString[0];
} __attribute__((packed)) AUTHENTICATE_MESSAGE, *PAUTHENTICATE_MESSAGE;
sources/3.0/rfc1002pdu.h 0 → 100644
View file @ 5d5011db
/*
* fs/cifs/rfc1002pdu.h
*
* Protocol Data Unit definitions for RFC 1001/1002 support
*
* Copyright (c) International Business Machines Corp., 2004
* Author(s): Steve French (sfrench@us.ibm.com)
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library 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 Lesser General Public License for more details.
*
* 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
*/
/* NB: unlike smb/cifs packets, the RFC1002 structures are big endian */
/* RFC 1002 session packet types */
#define RFC1002_SESSION_MESSAGE 0x00
#define RFC1002_SESSION_REQUEST 0x81
#define RFC1002_POSITIVE_SESSION_RESPONSE 0x82
#define RFC1002_NEGATIVE_SESSION_RESPONSE 0x83
#define RFC1002_RETARGET_SESSION_RESPONSE 0x84
#define RFC1002_SESSION_KEEP_ALIVE 0x85
/* RFC 1002 flags (only one defined */
#define RFC1002_LENGTH_EXTEND 0x80 /* high order bit of length (ie +64K) */
struct rfc1002_session_packet {
__u8 type;
__u8 flags;
__u16 length;
union {
struct {
__u8 called_len;
__u8 called_name[32];
__u8 scope1; /* null */
__u8 calling_len;
__u8 calling_name[32];
__u8 scope2; /* null */
} __attribute__((packed)) session_req;
struct {
__u32 retarget_ip_addr;
__u16 port;
} __attribute__((packed)) retarget_resp;
__u8 neg_ses_resp_error_code;
/* POSITIVE_SESSION_RESPONSE packet does not include trailer.
SESSION_KEEP_ALIVE packet also does not include a trailer.
Trailer for the SESSION_MESSAGE packet is SMB/CIFS header */
} __attribute__((packed)) trailer;
} __attribute__((packed));
/* Negative Session Response error codes */
#define RFC1002_NOT_LISTENING_CALLED 0x80 /* not listening on called name */
#define RFC1002_NOT_LISTENING_CALLING 0x81 /* not listening on calling name */
#define RFC1002_NOT_PRESENT 0x82 /* called name not present */
#define RFC1002_INSUFFICIENT_RESOURCE 0x83
#define RFC1002_UNSPECIFIED_ERROR 0x8F
/* RFC 1002 Datagram service packets are not defined here as they
are not needed for the network filesystem client unless we plan on
implementing broadcast resolution of the server ip address (from
server netbios name). Currently server names are resolved only via DNS
(tcp name) or ip address or an /etc/hosts equivalent mapping to ip address.*/
#define DEFAULT_CIFS_CALLED_NAME "*SMBSERVER "
sources/3.0/smberr.h 0 → 100644
View file @ 5d5011db
/*
* fs/cifs/smberr.h
*
* Copyright (c) International Business Machines Corp., 2002,2004
* Author(s): Steve French (sfrench@us.ibm.com)
*
* See Error Codes section of the SNIA CIFS Specification
* for more information
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library 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 Lesser General Public License for more details.
*
* 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
*/
#define SUCCESS 0x00 /* The request was successful. */
#define ERRDOS 0x01 /* Error is from the core DOS operating system set */
#define ERRSRV 0x02 /* Error is generated by the file server daemon */
#define ERRHRD 0x03 /* Error is a hardware error. */
#define ERRCMD 0xFF /* Command was not in the "SMB" format. */
/* The following error codes may be generated with the SUCCESS error class.*/
/*#define SUCCESS 0 The request was successful. */
/* The following error codes may be generated with the ERRDOS error class.*/
#define ERRbadfunc 1 /* Invalid function. The server did not
recognize or could not perform a
system call generated by the server,
e.g., set the DIRECTORY attribute on
a data file, invalid seek mode. */
#define ERRbadfile 2 /* File not found. The last component
of a file's pathname could not be
found. */
#define ERRbadpath 3 /* Directory invalid. A directory
component in a pathname could not be
found. */
#define ERRnofids 4 /* Too many open files. The server has
no file handles available. */
#define ERRnoaccess 5 /* Access denied, the client's context
does not permit the requested
function. This includes the
following conditions: invalid rename
command, write to Fid open for read
only, read on Fid open for write
only, attempt to delete a non-empty
directory */
#define ERRbadfid 6 /* Invalid file handle. The file handle
specified was not recognized by the
server. */
#define ERRbadmcb 7 /* Memory control blocks destroyed. */
#define ERRnomem 8 /* Insufficient server memory to
perform the requested function. */
#define ERRbadmem 9 /* Invalid memory block address. */
#define ERRbadenv 10 /* Invalid environment. */
#define ERRbadformat 11 /* Invalid format. */
#define ERRbadaccess 12 /* Invalid open mode. */
#define ERRbaddata 13 /* Invalid data (generated only by
IOCTL calls within the server). */
#define ERRbaddrive 15 /* Invalid drive specified. */
#define ERRremcd 16 /* A Delete Directory request attempted
to remove the server's current
directory. */
#define ERRdiffdevice 17 /* Not same device (e.g., a cross
volume rename was attempted */
#define ERRnofiles 18 /* A File Search command can find no
more files matching the specified
criteria. */
#define ERRwriteprot 19 /* media is write protected */
#define ERRgeneral 31
#define ERRbadshare 32 /* The sharing mode specified for an
Open conflicts with existing FIDs on
the file. */
#define ERRlock 33 /* A Lock request conflicted with an
existing lock or specified an
invalid mode, or an Unlock requested
attempted to remove a lock held by
another process. */
#define ERRunsup 50
#define ERRnosuchshare 67
#define ERRfilexists 80 /* The file named in the request
already exists. */
#define ERRinvparm 87
#define ERRdiskfull 112
#define ERRinvname 123
#define ERRinvlevel 124
#define ERRdirnotempty 145
#define ERRnotlocked 158
#define ERRcancelviolation 173
#define ERRalreadyexists 183
#define ERRbadpipe 230
#define ERRpipebusy 231
#define ERRpipeclosing 232
#define ERRnotconnected 233
#define ERRmoredata 234
#define ERReasnotsupported 282
#define ErrQuota 0x200 /* The operation would cause a quota
limit to be exceeded. */
#define ErrNotALink 0x201 /* A link operation was performed on a
pathname that was not a link. */
/* Below errors are used internally (do not come over the wire) for passthrough
from STATUS codes to POSIX only */
#define ERRsymlink 0xFFFD
#define ErrTooManyLinks 0xFFFE
/* Following error codes may be generated with the ERRSRV error class.*/
#define ERRerror 1 /* Non-specific error code. It is
returned under the following
conditions: resource other than disk
space exhausted (e.g. TIDs), first
SMB command was not negotiate,
multiple negotiates attempted, and
internal server error. */
#define ERRbadpw 2 /* Bad password - name/password pair in
a TreeConnect or Session Setup are
invalid. */
#define ERRbadtype 3 /* used for indicating DFS referral
needed */
#define ERRaccess 4 /* The client does not have the
necessary access rights within the
specified context for requested
function. */
#define ERRinvtid 5 /* The Tid specified in a command was
invalid. */
#define ERRinvnetname 6 /* Invalid network name in tree
connect. */
#define ERRinvdevice 7 /* Invalid device - printer request
made to non-printer connection or
non-printer request made to printer
connection. */
#define ERRqfull 49 /* Print queue full (files) -- returned
by open print file. */
#define ERRqtoobig 50 /* Print queue full -- no space. */
#define ERRqeof 51 /* EOF on print queue dump */
#define ERRinvpfid 52 /* Invalid print file FID. */
#define ERRsmbcmd 64 /* The server did not recognize the
command received. */
#define ERRsrverror 65 /* The server encountered an internal
error, e.g., system file
unavailable. */
#define ERRbadBID 66 /* (obsolete) */
#define ERRfilespecs 67 /* The Fid and pathname parameters
contained an invalid combination of
values. */
#define ERRbadLink 68 /* (obsolete) */
#define ERRbadpermits 69 /* The access permissions specified for
a file or directory are not a valid
combination. */
#define ERRbadPID 70
#define ERRsetattrmode 71 /* attribute (mode) is invalid */
#define ERRpaused 81 /* Server is paused */
#define ERRmsgoff 82 /* reserved - messaging off */
#define ERRnoroom 83 /* reserved - no room for message */
#define ERRrmuns 87 /* reserved - too many remote names */
#define ERRtimeout 88 /* operation timed out */
#define ERRnoresource 89 /* No resources available for request
*/
#define ERRtoomanyuids 90 /* Too many UIDs active on this session
*/
#define ERRbaduid 91 /* The UID is not known as a valid user
*/
#define ERRusempx 250 /* temporarily unable to use raw */
#define ERRusestd 251 /* temporarily unable to use either raw
or mpx */
#define ERR_NOTIFY_ENUM_DIR 1024
#define ERRnoSuchUser 2238 /* user account does not exist */
#define ERRaccountexpired 2239
#define ERRbadclient 2240 /* can not logon from this client */
#define ERRbadLogonTime 2241 /* logon hours do not allow this */
#define ERRpasswordExpired 2242
#define ERRnetlogonNotStarted 2455
#define ERRnosupport 0xFFFF
sources/3.0/smbfsctl.h 0 → 100644
View file @ 5d5011db
/*
* fs/cifs/smbfsctl.h: SMB, CIFS, SMB2 FSCTL definitions
*
* Copyright (c) International Business Machines Corp., 2002,2009
* Author(s): Steve French (sfrench@us.ibm.com)
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library 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 Lesser General Public License for more details.
*
* 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
*/
/* IOCTL information */
/*
* List of ioctl/fsctl function codes that are or could be useful in the
* future to remote clients like cifs or SMB2 client. There is probably
* a slightly larger set of fsctls that NTFS local filesystem could handle,
* including the seven below that we do not have struct definitions for.
* Even with protocol definitions for most of these now available, we still
* need to do some experimentation to identify which are practical to do
* remotely. Some of the following, such as the encryption/compression ones
* could be invoked from tools via a specialized hook into the VFS rather
* than via the standard vfs entry points
*/
#define FSCTL_REQUEST_OPLOCK_LEVEL_1 0x00090000
#define FSCTL_REQUEST_OPLOCK_LEVEL_2 0x00090004
#define FSCTL_REQUEST_BATCH_OPLOCK 0x00090008
#define FSCTL_LOCK_VOLUME 0x00090018
#define FSCTL_UNLOCK_VOLUME 0x0009001C
#define FSCTL_IS_PATHNAME_VALID 0x0009002C /* BB add struct */
#define FSCTL_GET_COMPRESSION 0x0009003C /* BB add struct */
#define FSCTL_SET_COMPRESSION 0x0009C040 /* BB add struct */
#define FSCTL_QUERY_FAT_BPB 0x00090058 /* BB add struct */
/* Verify the next FSCTL number, we had it as 0x00090090 before */
#define FSCTL_FILESYSTEM_GET_STATS 0x00090060 /* BB add struct */
#define FSCTL_GET_NTFS_VOLUME_DATA 0x00090064 /* BB add struct */
#define FSCTL_GET_RETRIEVAL_POINTERS 0x00090073 /* BB add struct */
#define FSCTL_IS_VOLUME_DIRTY 0x00090078 /* BB add struct */
#define FSCTL_ALLOW_EXTENDED_DASD_IO 0x00090083 /* BB add struct */
#define FSCTL_REQUEST_FILTER_OPLOCK 0x0009008C
#define FSCTL_FIND_FILES_BY_SID 0x0009008F /* BB add struct */
#define FSCTL_SET_OBJECT_ID 0x00090098 /* BB add struct */
#define FSCTL_GET_OBJECT_ID 0x0009009C /* BB add struct */
#define FSCTL_DELETE_OBJECT_ID 0x000900A0 /* BB add struct */
#define FSCTL_SET_REPARSE_POINT 0x000900A4 /* BB add struct */
#define FSCTL_GET_REPARSE_POINT 0x000900A8 /* BB add struct */
#define FSCTL_DELETE_REPARSE_POINT 0x000900AC /* BB add struct */
#define FSCTL_SET_OBJECT_ID_EXTENDED 0x000900BC /* BB add struct */
#define FSCTL_CREATE_OR_GET_OBJECT_ID 0x000900C0 /* BB add struct */
#define FSCTL_SET_SPARSE 0x000900C4 /* BB add struct */
#define FSCTL_SET_ZERO_DATA 0x000900C8 /* BB add struct */
#define FSCTL_SET_ENCRYPTION 0x000900D7 /* BB add struct */
#define FSCTL_ENCRYPTION_FSCTL_IO 0x000900DB /* BB add struct */
#define FSCTL_WRITE_RAW_ENCRYPTED 0x000900DF /* BB add struct */
#define FSCTL_READ_RAW_ENCRYPTED 0x000900E3 /* BB add struct */
#define FSCTL_READ_FILE_USN_DATA 0x000900EB /* BB add struct */
#define FSCTL_WRITE_USN_CLOSE_RECORD 0x000900EF /* BB add struct */
#define FSCTL_SIS_COPYFILE 0x00090100 /* BB add struct */
#define FSCTL_RECALL_FILE 0x00090117 /* BB add struct */
#define FSCTL_QUERY_SPARING_INFO 0x00090138 /* BB add struct */
#define FSCTL_SET_ZERO_ON_DEALLOC 0x00090194 /* BB add struct */
#define FSCTL_SET_SHORT_NAME_BEHAVIOR 0x000901B4 /* BB add struct */
#define FSCTL_QUERY_ALLOCATED_RANGES 0x000940CF /* BB add struct */
#define FSCTL_SET_DEFECT_MANAGEMENT 0x00098134 /* BB add struct */
#define FSCTL_SIS_LINK_FILES 0x0009C104
#define FSCTL_PIPE_PEEK 0x0011400C /* BB add struct */
#define FSCTL_PIPE_TRANSCEIVE 0x0011C017 /* BB add struct */
/* strange that the number for this op is not sequential with previous op */
#define FSCTL_PIPE_WAIT 0x00110018 /* BB add struct */
#define FSCTL_LMR_GET_LINK_TRACK_INF 0x001400E8 /* BB add struct */
#define FSCTL_LMR_SET_LINK_TRACK_INF 0x001400EC /* BB add struct */
#define IO_REPARSE_TAG_MOUNT_POINT 0xA0000003
#define IO_REPARSE_TAG_HSM 0xC0000004
#define IO_REPARSE_TAG_SIS 0x80000007
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