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Autobuild-User: Jeremy Allison <jra@samba.org>
Autobuild-Date: Mon Oct 17 21:39:32 CEST 2011 on sn-devel-104
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Autobuild-User: Jeremy Allison <jra@samba.org>
Autobuild-Date: Fri Oct 14 03:26:06 CEST 2011 on sn-devel-104
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Autobuild-User: Jeremy Allison <jra@samba.org>
Autobuild-Date: Thu Jul 28 02:09:20 CEST 2011 on sn-devel-104
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create files are always failed with NT_STATUS_FILE_IS_A_DIRECTORY
Ensure we do this for all cases where the stat fails.
Jeremy
Autobuild-User: Jeremy Allison <jra@samba.org>
Autobuild-Date: Mon Apr 4 20:08:45 CEST 2011 on sn-devel-104
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(add const).
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With a case insensitive file system the stat cache lookup leaked the parent
directorys stat information from unix_convert into the smb_filename. This led
open_file_ntcreate to believe it just created a directory.
In the case where we do the search we already invalidate the stat struct.
Thanks to TAKAHASHI Motonobu for insisting! :-)
Volker
Autobuild-User: Volker Lendecke <vlendec@samba.org>
Autobuild-Date: Sun Apr 3 14:54:27 CEST 2011 on sn-devel-104
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Guenther
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Guenther
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OpenDir_fsp for new usage.
Autobuild-User: Jeremy Allison <jra@samba.org>
Autobuild-Date: Thu Feb 10 02:43:31 CET 2011 on sn-devel-104
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Fallback to pathname opendir if not.
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Do this by keeping a linked list of delete on close tokens, one for
each filename that identifies a path to the dev/inode. Use the
jenkins hash of the pathname to identify the correct token.
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Will be used when we store more than one delete on close token.
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Jeremy.
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Fix this to ensure that if "start" is manipulated, then "dirpath"
is changed also.
Ensures that when the path:
/a/long/file/name/path.txt
is processed, we first stat:
/a/long/file/name/path.txt
and if this fails, we try to stat:
/a/long/file/name
if this path exists (the normal case when creating a new
entry in a directory) then we no longer do the individual
path name walk, but only do case insensitive lookup on the
last component. If the stat fails we do the full pathname
walk as normal in 3.5.x and below. Metze, examine this
change for your back-port.
Jeremy.
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FindFirst with 'path\to\some\dir\with\files\*'
triggers the following stat calls
path\to\some\dir\with\files\* => ENOENT
path\
path\to\
path\to\some\
path\to\some\dir\
path\to\some\dir\with\
path\to\some\dir\with\files\
path\to\some\dir\with\files\* => ENOENT
With this patch we get :
path\to\some\dir\with\files\* => ENOENT
path\to\some\dir\with\files = OK
Jeremy.
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Guenther
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In the refactoring around filename_convert, the split between the functions
resolve_dfspath() and resolve_dfspath_wcard() was lost, leaving us only with
resolve_dfspath_wcard().
Internally resolve_dfspath_wcard() calls dfs_redirect() only with a
"allow_wcards" flag of true, wheras the old resolve_dfspath() would call with a
value of false. The loss of this case causes dfs_redirect to always masquerade
DFS links as directories, even when they are being queried directly by a trans2
QPATHINFO call. We should only masquerade DFS links as directories when called
from a SMBsearch or trans2 findfirst/findnext - which was the intent of the
"allow_wcards" flag.
This patch adds back an allow_wcards bool parameter to
resolve_dfspath_wcard(). This bool is set from the state of the ucf_flags when
filename_convert() is called.
I will follow this up with a new smbclient-based torture test that will prevent
us from ever regressing our DFS support again.
Jeremy.
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Volker.
Create widelinks_warning(int snum) to cover the message needed in make_connection.
Jeremy.
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This way we avoid any chance that a configuration reload may turn
back on wide links when unix extensions are enabled.
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I know Volker will look at this closely so here's the explaination :-).
Originally on a case-sensitive share we simply did a stat (or lstat)
call and returned success of fail based on the result. However this
failed to take account of incoming paths with a wildcard (which must
always fail, and with different error messages depending on whether
the wildcard is the last component or in the path). Also it failed
to take account of a stat fail with ENOENT due to a missing component
of the path as the last component (which is ok as it could be a new
file) or if the ENOENT was due to the missing component within
the path (not the last component) - which must return the correct
error. What this means is that with "case sensitive = yes" we do
one more talloc call (to get the parent directory) and one more
stat call (on the parent directory) in the case where the stat
call fails. I think this is an acceptable overhead to enable
case sensitive shares to return the correct error messages for
applications. Volker please examine carefully :-).
Jeremy.
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RAW-CHKPATH when case sensitive = yes, but isn't the correct way to do
it. I'm testing a larger patch to smbd/filename.c that should fix this
correctly, and will add a torture test to ensure RAW-CHKPATH is run against
a case sensitive share once this is done.
Jeremy.
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wide links = no.
Jeremy.
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out by Volker.Restores the pathname handling for FILE_FLAG_POSIX_SEMANTICS but still prevents the O_APPEND problems. Jeremy.
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This reverts commit f7b4151a64d8c6851e62255a7139fd00a5fc63a3.
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This reverts commit c85a4c9ba4a7de65a7850f6f9708df66bd24deea.
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This is a hot codepath (called from the stat cache)
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This vop is designed to work in tandem with SMB_VFS_READDIR to allow
vfs modules to make modifications to arbitrary filenames before
they're consumed by callers. Subsequently the core directory
enumeration code in smbd is now changed to free the memory that may be
allocated in a module. This vop enables the new version of catia in
the following patch.
Signed-off-by: Tim Prouty <tprouty@samba.org>
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metze
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This patch also changes the unix convert flags to make sure the
correct semantics are preservered for allowing/disallowing wildcards
in the last component of the path.
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caller know if the path has a wildcard
This also eliminates the need for resolve_dfspath().
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This allows SMB_VFS_[L]STAT to be called directly. Additionally, I
changed NTSTATUS result to be named status for consistency.
I also removed the stat_cache_add() from build_stream_path() because
stat_cache_lookup() is never actually called on a file with a stream.
There is no reason why the stat cache couldn't be consulted for
streams in the future.
Jeremy/Volker, please take a look at this one when you get a chance.
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This is to ease the linking pain of everything that links LOCKING_OBJ
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The goal is to eventually remove the need for the char **fname argument
once all callers have standardized on smb_filename.
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This patch introduces two new temporary helper functions
vfs_stat_smb_fname and vfs_lstat_smb_fname. They basically allowed me
to call the new smb_filename version of stat, while avoiding plumbing
it through callers that are still too inconvenient. As the conversion
moves along, I will be able to remove callers of this, with the goal
being to remove all callers.
There was also a bug in create_synthetic_smb_fname_split (also a
temporary utility function) that caused it to incorrectly handle
filenames with ':'s in them when in posix mode. This is now fixed.
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In copy_internals(), if the !CAN_WRITE(conn) kicks in, we end up
dereferencing a NULL smb_filename.
This adds a simple protection around it.
Tim, please check!
Volker
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resolve_dfspath() -> unix_convert() -> get_full_smb_filename() -> check_name()
with a new function filename_convert().
This restores the check_name() calls that had gone missing
since the default create_file was changed. All "standard"
pathname processing now goes through filename_convert().
I'll take a look at the non-standard pathname processing
next. As a benefit, fixed a missing resolve_dfspath()
in the trans2 mkdir call.
Jeremy.
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This was a little messy because of all of the vfs modules I had to
touch. Most of them were pretty straight forward, but the streams
modules required a little attention to handle smb_filename. Since the
use of smb_filename enables the vfs modules to access the raw,
over-the-wire stream, a little bit of the handling that was being done
by split_ntfs_stream_name has now been shifted into the individual
stream modules. It may be a little more code, but overall it gives
more flexibility to the streams modules, while also allowing correct
stream handling.
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This patch introduces
struct stat_ex {
dev_t st_ex_dev;
ino_t st_ex_ino;
mode_t st_ex_mode;
nlink_t st_ex_nlink;
uid_t st_ex_uid;
gid_t st_ex_gid;
dev_t st_ex_rdev;
off_t st_ex_size;
struct timespec st_ex_atime;
struct timespec st_ex_mtime;
struct timespec st_ex_ctime;
struct timespec st_ex_btime; /* birthtime */
blksize_t st_ex_blksize;
blkcnt_t st_ex_blocks;
};
typedef struct stat_ex SMB_STRUCT_STAT;
It is really large because due to the friendly libc headers playing macro
tricks with fields like st_ino, so I renamed them to st_ex_xxx.
Why this change? To support birthtime, we already have quite a few #ifdef's at
places where it does not really belong. With a stat struct that we control, we
can consolidate the nanosecond timestamps and the birthtime deep in the VFS
stat calls.
At this moment it is triggered by a request to support the birthtime field for
GPFS. GPFS does not extend the system level struct stat, but instead has a
separate call that gets us the additional information beyond posix. Without
being able to do that within the VFS stat calls, that support would have to be
scattered around the main smbd code.
It will very likely break all the onefs modules, but I think the changes will
be reasonably easy to do.
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