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We need to migrate all pathname based VFS calls to use a struct
to finish modernising the VFS with extra timestamp and flags parameters.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Thu Jun 1 02:58:53 CEST 2017 on sn-devel-144
We need to migrate all pathname based VFS calls to use a struct
to finish modernising the VFS with extra timestamp and flags parameters.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
We need to migrate all pathname based VFS calls to use a struct
to finish modernising the VFS with extra timestamp and flags parameters.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
We need to migrate all pathname based VFS calls to use a struct
to finish modernising the VFS with extra timestamp and flags parameters.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
We need to migrate all pathname based VFS calls to use a struct
to finish modernising the VFS with extra timestamp and flags parameters.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
We need to migrate all pathname based VFS calls to use a struct
to finish modernising the VFS with extra timestamp and flags parameters.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
We need to migrate all pathname based VFS calls to use a struct
to finish modernising the VFS with extra timestamp and flags parameters.
Requires a few extra cleanups in calling code.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
We need to migrate all pathname based VFS calls to use a struct
to finish modernising the VFS with extra timestamp and flags parameters.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
FSCTL_DUPLICATE_EXTENTS_TO_FILE must be handled as a COW clone. Add a
copy-chunk flags parameter to the VFS to handle this.
Signed-off-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Ralph Böhme <slow@samba.org>
Not currently used - no logic changes inside.
This will make it possible to pass down a long-lived talloc
context from the loading function for modules to use instead
of having them internally all use talloc_autofree_context()
which is a hidden global.
Updated all known module interface numbers, and added a
WHATSNEW.
Signed-off-by: Jeremy Allison <jra@samba.org>
Signed-off-by: Ralph Böhme <slow@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Sat Apr 22 01:17:00 CEST 2017 on sn-devel-144
Use the cwd_name parameter to reconstruct the original
client name for symlink testing.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12721
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Add an extra paramter to cwd_name to check_reduced_name().
If cwd_name == NULL then fname is a client given path relative
to the root path of the share.
If cwd_name != NULL then fname is a client given path relative
to cwd_name. cwd_name is relative to the root path of the share.
Not yet used, logic added in the next commit.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12721
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
In a UNIX filesystem, the names "." and ".." by definition can *never*
be symlinks - they are already reserved names.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12721
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Uri Simchoni <uri@samba.org>
The previous commit removed all callers of this, so lets remove it.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Tue Oct 11 14:44:03 CEST 2016 on sn-devel-144
Most calls to disk_quotas originate at a state with an
open file descriptor. Pass the file's stat info down to
disk_quota, so that we can avoid extra stat's and the related
error handling.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12145
Signed-off-by: Uri Simchoni <uri@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Some VFS modules want to ensure that they implement all VFS functions.
This helper can be used to detect missing functions in the developer
build.
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This will make it easier to support those systems and file systems that
can store DOS attributes. It should retain the original functionality if
VFS functions providing these things are not provided.
Signed-off-by: Richard Sharpe <rsharpe@samba.org>
Signed-off-by: Jeremy Allison <jra@samba.org>
Get it from parent/deriving smb_filename if present.
Use 0 (as usually this a Windows-style lookup) if
not.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Uri Simchoni <uri@samba.org>
Prepare for changing vfs_streaminfo to do the same.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Mon Mar 7 21:12:56 CET 2016 on sn-devel-144
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Sat Mar 5 12:53:11 CET 2016 on sn-devel-144
Subsequent commits that are going to track aio request duration in the
aio backends will use this.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Preparing to reduce use of lp_posix_pathnames().
Uses the same techniques as commit 616d068f0cebb8e50a855b6e30f36fccb7f5a3c8
(synthetic_smb_fname()) to cope with modules that
modify the incoming pathname.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Preparing to reduce use of lp_posix_pathnames().
Uses the same techniques as commit 616d068f0cebb8e50a855b6e30f36fccb7f5a3c8
(synthetic_smb_fname()) to cope with modules that
modify the incoming pathname.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
Autobuild-User(master): Michael Adam <obnox@samba.org>
Autobuild-Date(master): Thu Feb 25 20:46:49 CET 2016 on sn-devel-144
Preparing to reduce use of lp_posix_pathnames().
Uses the same techniques as commit 616d068f0cebb8e50a855b6e30f36fccb7f5a3c8
(synthetic_smb_fname()) to cope with modules that
modify the incoming pathname.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Uri Simchoni <uri@samba.org>
Autobuild-User(master): Uri Simchoni <uri@samba.org>
Autobuild-Date(master): Wed Feb 24 16:05:55 CET 2016 on sn-devel-144
Bumps VFS version to 35.
Preparing to reduce use of lp_posix_pathnames().
Most of this is boilerplate, the only subtleties are in
the modules:
vfs_catia.c
vfs_media_harmony.c
vfs_shadow_copy2.c
vfs_unityed_media.c
Where the path is modified then passed to SMB_VFS_NEXT_GET_NT_ACL().
In these cases the change uses synthetic_smb_fname() to
create a new struct smb_filename from the modified path.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <rb@sernet.de>
Adding a path parameter would allow the VFS get_quota
function to be used for determining the quota/usage
when calculating size and free spacei.
Signed-off-by: Uri Simchoni <uri@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Commit 7606c0db257b3f9d84da5b2bf5fbb4034cc8d77d fixes the
path checks in check_reduced_name[_with_privilege]() to
prevent unintended access via wide links.
The fix fails to correctly treat a corner case where the share
path is "/". This case is important for some real world
scenarios, notably the use of the glusterfs VFS module:
For the share path "/", the newly introduced checks deny all
operations in the share.
This change fixes the checks for the corner case.
The point is that the assumptions on which the original
checks are based are not true for the rootdir "/" case.
This is the case where the rootdir starts _and ends_ with
a slash. Hence a subdirectory does not continue with a
slash after the rootdir, since the candidate path has
been normalized.
This fix just omits the string comparison and the
next character checks in the case of rootdir "/",
which is correct because we know that the candidate
path is normalized and hence starts with a '/'.
The patch is fairly minimal, but changes indentation,
hence best viewed with 'git show -w'.
A side effect is that the rootdir="/" case needs
one strncmp less.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11647
Pair-Programmed-With: Jose A. Rivera <jarrpa@samba.org>
Signed-off-by: Michael Adam <obnox@samba.org>
Signed-off-by: Jose A. Rivera <jarrpa@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Michael Adam <obnox@samba.org>
Autobuild-Date(master): Thu Dec 24 00:57:31 CET 2015 on sn-devel-144
This is in preperation of a more fine grained control of POSIX behaviour
in the SMB and VFS layers.
Inititally we use an uint8_t for the flags bitmap and add a define
posix_flags as posix_open in order to avoid breaking the VFS ABI.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=11065
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
"Informational" is a better description for this message; change the log
level accordingly (level 5).
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
The interesting information is already logged later; having an
additional message when entering the function should be only done as
debug message (level 10).
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
read/write aren't overloaded in the streams VFS modules, using
pread/pwrite instead this makes it possible to use transfer_file() with
named streams.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=11317
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
No longer used or needed.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11249
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
This change adds three new VFS hooks covering snapshot manipulation:
- snap_check_path
Check whether a path supports snapshots.
- snap_create
Request the creation of a snapshot of the provided path.
- snap_delete
Request the deletion of a snapshot.
These VFS call-outs will be used in future by Samba's File Server Remote
VSS Protocol (FSRVP) server.
MS-FSVRP states:
At any given time, Windows servers allow only one shadow copy set to
be going through the creation process.
Therefore, only provide synchronous hooks for now, which can be
converted to asynchronous _send/_recv functions when the corresponding
DCE/RPC server infrastructure is in place.
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
The Linux fallocate syscall offers a mode parameter which can take the
following flags:
FALLOC_FL_KEEP_SIZE
FALLOC_FL_PUNCH_HOLE (since 2.6.38)
FALLOC_FL_COLLAPSE_RANGE (since 3.15)
FALLOC_FL_ZERO_RANGE (since 3.14)
The flags are not exclusive, e.g. FALLOC_FL_PUNCH_HOLE must be specified
alongside FALLOC_FL_KEEP_SIZE.
Samba currently takes a vfs_fallocate_mode enum parameter for the VFS
fallocate hook, taking either an EXTEND_SIZE or KEEP_SIZE value. This
commit changes the fallocate hook such that it accepts a uint32_t flags
parameter, in preparation for PUNCH_HOLE and ZERO_RANGE support.
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
The small_query parameter for SMB_VFS_DISK_FREE() was, prior to the
previous commit, used to obtain 16-bit wide free-space information for
the deprecated dskattr SMB_COM_QUERY_INFORMATION_DISK command.
With the dskattr handler now performing the 16-bit collapse directly,
the small_query parameter can be removed from the entire code path.
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Tue Feb 17 05:37:20 CET 2015 on sn-devel-104
Fix vfs_allocate_file_space(), vfs_slow_fallocate(),
vfs_fill_sparse() to follow the -1,errno convention
for errors.
Standardize on the -1,errno convention.
Reported by Jones <jones.kstw@gmail.com> who provided the
initial patch. This patch tested and confirmed working
by him as well.
https://bugzilla.samba.org/show_bug.cgi?id=10982
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: David Disseldorp <ddiss@suse.de>
SMB_VFS_READDIR_ATTR is a last minute hook to fetch additional metadata
for a directory entry when we're already marshalling the SMB reply
buffer.
This would be used, when there's a need to repurpose some fields in the
the reply, like it's done with Apple's SMB2 extension "AAPL".
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
