samba.git/source3/modules/vfs_prealloc.c, branch talloc-2.4.2

vfs: change openat propotype to match linux openat2

2022-08-06T01:43:50+00:00

The Linux prototype for openat2 looks like this:

       long openat2(int dirfd, const char *pathname,
                   struct open_how *how, size_t size);

where "struct open_how" is defined in "linux/openat2.h". It is
designed to be extensible with further flags.

The "size" parameter is required because there is no type checking
between userland and kernelspace, so the way for Linux to find which
version of open_how is being passed in is looking at the size:
"open_how" is expected to only every grow with additional fields,
should a change be necessary in the future.

Samba does not have this problem, we can typecheck the struct and
pointers, we expect all VFS modules to be compiled against the current
vfs.h.

For now this adds no functionality, but it will make further patches
much smaller.

Pair-programmed-with: Stefan Metzmacher 

Signed-off-by: Volker Lendecke 
Signed-off-by: Stefan Metzmacher 
Reviewed-by: Jeremy Allison

vfs: Don't go through strnorm(..., CASE_LOWER)

2022-02-17T17:13:35+00:00

With a fixed CASE_LOWER we should go directly to the lowerlevel call, this
makes it more obvious to me.

Signed-off-by: Volker Lendecke 
Reviewed-by: Jeremy Allison

vfs: Fix a typo

2022-02-17T17:13:35+00:00

Signed-off-by: Volker Lendecke 
Reviewed-by: Jeremy Allison

smbd: use fsp_get_io_fd() when accessing a file or it's associated metadata

2020-12-16T09:08:30+00:00

In all places where we access or modify a file or it's associated metadata, we
use fsp_get_io_fd() to fetch the low-level fd from the fsp. This ensures we
don't accidentally use a pathref fsp where the fd would be opened as root on
systems lacking O_PATH.

Signed-off-by: Ralph Boehme 
Reviewed-by: Jeremy Allison

vfs: remove SMB_VFS_OPEN()

2020-05-21T20:38:34+00:00

Signed-off-by: Ralph Boehme 
Reviewed-by: Jeremy Allison

vfs_prealloc: implement SMB_VFS_OPENAT()

2020-05-21T20:38:33+00:00

Signed-off-by: Ralph Boehme 
Reviewed-by: Jeremy Allison

vfs: Use static_decl_vfs in all VFS modules

2017-12-18T12:31:59+00:00

Signed-off-by: Christof Schmitt 
Reviewed-by: Andrew Bartlett 

Autobuild-User(master): Andrew Bartlett 
Autobuild-Date(master): Mon Dec 18 13:32:00 CET 2017 on sn-devel-144

lib: modules: Change XXX_init interface from XXX_init(void) to XXX_init(TALLOC_CTX *)

2017-04-21T23:17:00+00:00

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 
Signed-off-by: Ralph Böhme 

Autobuild-User(master): Jeremy Allison 
Autobuild-Date(master): Sat Apr 22 01:17:00 CEST 2017 on sn-devel-144

vfs_prealloc: Remove call to gpfs_prealloc

2015-02-11T01:03:08+00:00

Calling gpfs_prealloc changes the actual size of the file, and this
should not be done implicitly. Also this code does not compile due to
the missing dependency to the gpfs library. The best way solution here
is probably removing the call to gpfs_prealloc. The vfs_gpfs module
already implements the call to gpfs_prelloc when this can be done
safely.

Signed-off-by: Christof Schmitt 
Reviewed-by: Jeremy Allison 

Autobuild-User(master): Jeremy Allison 
Autobuild-Date(master): Wed Feb 11 02:03:09 CET 2015 on sn-devel-104

Check error returns on strnorm().

2012-08-09T19:07:32+00:00