samba.git/examples/VFS, branch talloc-2.4.2

examples: Fix code spelling

2023-10-25T22:23:37+00:00

Signed-off-by: Joseph Sutton 
Reviewed-by: Andrew Bartlett

vfs: Remove "sbuf" from readdir_fn()

2023-06-23T18:29:40+00:00

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

Autobuild-User(master): Jeremy Allison 
Autobuild-Date(master): Fri Jun 23 18:29:40 UTC 2023 on atb-devel-224

vfs: Remove vfs telldir/seekdir functions

2023-06-14T00:26:55+00:00

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

Autobuild-User(master): Jeremy Allison 
Autobuild-Date(master): Wed Jun 14 00:26:55 UTC 2023 on atb-devel-224

vfs: Add dirfsp to connectpath_fn()

2022-09-17T04:15:35+00:00

So far we only call CONNECTPATH on full paths. In the future, we'll
have a call that will not have converted a relative path to absolute
just for efficiency reasons. To give shadow_copy2 the chance to still
find the snapshot directory, pass the dirfsp down to it.

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

vfs: Add struct vfs_open_how.resolve

2022-08-06T02:39:11+00:00

This prepares the later introduction of VFS_OPEN_HOW_RESOLVE_NO_SYMLINKS,
which will be used to make use of RESOLVE_NO_SYMLINKS on linux with openat2().

Right now all terminal VFS objects reject any resolve bits with ENOSYS.
So we only prepare the vfs layer for now without any real change.
But this will make backports to 4.17 much easier.

Pair-programmed-with: Stefan Metzmacher 

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

Autobuild-User(master): Jeremy Allison 
Autobuild-Date(master): Sat Aug  6 02:39:11 UTC 2022 on sn-devel-184

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

Revert "vfs: remove dirfsp arg from SMB_VFS_CREATE_FILE()"

2022-04-28T13:12:33+00:00

This reverts commit 322574834f1e71bc01f21be9059ca4d386517c84.

Not strictly a revert anymore, but for future work we do need "dirfsp"
in create_file_default() passed through the VFS.

Signed-off-by: Volker Lendecke 
Reviewed-by: Ralph Boehme

vfs: Remove name-based SMB_VFS_GET_REAL_FILENAME()

2022-04-28T13:12:33+00:00

Signed-off-by: Volker Lendecke 
Reviewed-by: Ralph Boehme

vfs: Add SMB_VFS_GET_REAL_FILENAME_AT

2022-04-28T13:12:33+00:00

In a patchset that I'm working on right now there's the need to call
getrealfilename while the code does have a pathref fsp already
around. Doing the name-based call including non_widelink_open is not
necessary in this case. Start by adding the _at based call to the VFS.

For now, fall back to the name-based call. glusterfs-fuse will in a
future patch be converted to fgetxattr.

Signed-off-by: Volker Lendecke 
Reviewed-by: Ralph Boehme

vfs: Convert get_real_filename() to NTSTATUS

2022-03-10T18:23:36+00:00

This makes it possible to more easily handle STOPPED_ON_SYMLINK vs
OBJECT_PATH_NOT_FOUND vs OBJECT_NAME_NOT_FOUND and so on. The next
patch needs this to properly handle symlinks.

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