1
0
mirror of https://github.com/samba-team/samba.git synced 2025-03-29 02:50:28 +03:00

11768 Commits

Author SHA1 Message Date
Jeremy Allison
1538b44d94 s3: smbd: In dfs_path_lookup(), use relative dirfsp, atname lookups in SMB_VFS_READ_DFS_PATHAT() for the pathname walk fallback.
Note that parent_pathref() must succeed before we call SMB_VFS_READ_DFS_PATHAT().
If parent_pathref() fails, just step back a component without calling
SMB_VFS_READ_DFS_PATHAT().

There are no longer any non-relative uses of SMB_VFS_READ_DFS_PATHAT().

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2021-07-14 08:09:31 +00:00
Jeremy Allison
f35c6a48fc s3: smbd: In dfs_path_lookup(), use relative dirfsp, atname lookups in SMB_VFS_READ_DFS_PATHAT() for the whole path optimization.
Note parent_pathref() must succeed before we can call SMB_VFS_READ_DFS_PATHAT().
Otherwise, just skip the whole path optimization and go onto the path walk code.

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2021-07-14 08:09:31 +00:00
Jeremy Allison
c62807e3e1 s3: smbd: In is_msdfs_link(), change to dirfsp, atname parameters.
Remember to update the smb_fname->st struct inside check_msdfs_link(),
as we now pass the atname to is_msdfs_link(), not the smb_fname.

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2021-07-14 08:09:31 +00:00
Jeremy Allison
3b71ead1cc s3: smbd: Add dirfsp, atname parameters to check_msdfs_link().
Replace the old connection_struct *conn parameter.

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2021-07-14 08:09:31 +00:00
Jeremy Allison
88e56a71c6 s3: smbd: Pass dirfsp, atname down to mode_fn() passed to smbd_dirptr_get_entry().
Not yet used.

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2021-07-14 08:09:31 +00:00
Jeremy Allison
523bc61c9d s3: smbd: In smbd_dirptr_get_entry(), postpone TALLOC_FREE(atname) as we're going to pass this to mode_fn().
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2021-07-14 08:09:31 +00:00
Ralph Boehme
b32e56d6eb smbd: update smb_fname statinfo from fsp
fd_openat() has done an FSTAT on the handle so update the smb_fname stat info
with "truth".  from the handle.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=14756

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2021-07-14 08:09:31 +00:00
Ralph Boehme
2c9ae4b78c smbd: put back dev/ino stat/fstat check in openat_pathref_fsp()
This reverts commit a6df051dd5e8c63f2fdfdb20ee01169d2bdb97dd:

  "s3: smbd: In openat_pathref_fsp(), just check we're opening the same file type, not dev and inode."

The prior changes mean we can go back to checking dev/ino
matches.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=14756

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2021-07-14 08:09:31 +00:00
Ralph Boehme
18a30d939e smbd: canonicalize SMB_VFS_FSTAT() stat buffer
This helps code inside any module implementing fstat() looking at
fsp->fsp_name->st instead of the passed in stat buf.

I only ran afoul of this in a DEBUG message I added while debugging some inode
related problem.

No change in behaviour.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=14756

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2021-07-14 08:09:31 +00:00
Jeremy Allison
0657db2644 s3: smbd: Explicitly code the semantics of "dos filemode" into the chown code.
We actually don't need this to get the right semantics, as the open or the
set_sd() code catches the correct cases and returns ACCESS_DENIED, but it
makes me much happier to see the prerequisites needed expressed in code here
right at the point of use.

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): Tue Jul 13 08:11:36 UTC 2021 on sn-devel-184
2021-07-13 08:11:36 +00:00
Stefan Metzmacher
147dd9d58a libcli/smb: let smb2_negotiate_context_parse() only parse the expected number of contexts
Any garbage at the end needs to be ignored.

This fixes the Negotiate_SMB311_ContextID_NetName test from:
https://github.com/microsoft/WindowsProtocolTestSuites/blob/main/TestSuites/FileServer/src/SMB2/TestSuite/Negotiate/Negotiation.cs#L730

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Mon Jul 12 21:25:21 UTC 2021 on sn-devel-184
2021-07-12 21:25:21 +00:00
Stefan Metzmacher
00bab5b3c8 smbXsrv_{open,session,tcon}: protect smbXsrv_{open,session,tcon}_global_traverse_fn against invalid records
I saw systems with locking.tdb records being part of:
  ctdb catdb smbXsrv_tcon_global.tdb

It's yet unknown how that happened, but we should not panic in srvsvc_*
calls because the info0 pointer was NULL.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=14752

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>

Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Tue Jul  6 11:08:43 UTC 2021 on sn-devel-184
2021-07-06 11:08:43 +00:00
Jeremy Allison
99dd56c5fb vfs: RIP SMB_VFS_GETXATTR()
.--. .-,       .-..-.__
                    .'(`.-` \_.-'-./`  |\_( "\__
                 __.>\ ';  _;---,._|   / __/`'--)
                /.--.  : |/' _.--.<|  /  | |
            _..-'    `\     /' /`  /_/ _/_/
             >_.-``-. `Y  /' _;---.`|/))))
            '` .-''. \|:  .'   __, .-'"`
             .'--._ `-:  \/:  /'  '.\             _|_
                 /.'`\ :;   /'      `-           `-|-`
                -`    |     |                      |
                      :.; : |                  .-'~^~`-.
                      |:    |                .' _     _ `.
                      |:.   |                | |_) | |_) |
                      :. :  |                | | \ | |   |
                      : ;   |                |           |
                      : ;   |                |  SMB_VFS  |
                      : ;   |                |  GETXATTR |
                      : ;   |                |           |
                    .jgs. : ;                |           |
            -."-/\\\/:::.    `\."-._'."-"_\\-|           |///."-
            " -."-.\\"-."//.-".`-."_\\-.".-\\`=.........=`//-".

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2021-07-04 17:15:35 +00:00
Jeremy Allison
6a366012aa s3: smbd: Fix fsp->base_fsp->fsp_name->fsp == fsp->base_fsp invarient in non_widelink_open().
Currently in master when we call into openat() in the VFS
we violate the invarient:

fsp->base_fsp->fsp_name->fsp == fsp->base_fsp.

The reason for this is subtle. Inside open.c:non_widelink_open()
we change the fsp->base_fsp to be relative to the new $cwd.

We do this by the following code in open.c:non_widelink_open():

        /* Also setup base_fsp to be relative to the new cwd */
        if (fsp->base_fsp != NULL) {
                base_smb_fname_rel = (struct smb_filename) {
                        .base_name = smb_fname_rel->base_name,
                };
                orig_base_fsp_name = fsp->base_fsp->fsp_name;
                fsp->base_fsp->fsp_name = &base_smb_fname_rel;
        }

Note that fsp->base_fsp->fsp_name now points at a
stack variable struct smb_filename, with smb_fname->fsp == NULL.

This fixes that problem by removing the horrid
stack based smb_filename and changing to use a
talloc'ed fsp->base_fsp->fsp_name, with
correctly linked fsp->base_fsp->fsp_name-> pointer.

Remove the selftest/knownfail.d/fruit_vfs_invariant
file as all vfs_fruit tests now pass again.

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2021-07-04 17:15:34 +00:00
Ralph Boehme
e72be52133 smbd: use sys_io_ranges_overlap() in fsctl_dup_extents_check_overlap()
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12033

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2021-06-30 16:51:29 +00:00
Noel Power
f3008db0c3 VFS: Remove SMB_VFS_CHFLAGS, not used anymore
Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
2021-06-29 08:21:38 +00:00
Noel Power
4b98fc6914 s3/smbd: smb_set_file_unix_info2: SMB_VFS_CHFLAGS -> SMB_VFS_FCHFLAGS
Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
2021-06-29 08:21:38 +00:00
Noel Power
9ca41e197f VFS: Add initial implemenataion for SMB_VFS_FCHFLAGS
Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
2021-06-29 08:21:37 +00:00
Jeremy Allison
c2fde31b1c s3: smbd: Cleanup - rename get_ea_names_from_file() -> get_ea_names_from_fsp().
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): Fri Jun 25 16:37:59 UTC 2021 on sn-devel-184
2021-06-25 16:37:59 +00:00
Jeremy Allison
e30094e6c0 s3: smbd: Rename get_ea_value() -> get_ea_value_fsp().
Remove the connection struct and smb_filename parameters.

There are now no more callers of SMB_VFS_GETXATTR().

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2021-06-25 15:53:31 +00:00
Jeremy Allison
198413da76 s3: smbd: get_ea_list_from_fsp(). Make it clear we're using only the fsp by replacing the fsp->fsp_name with NULL.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2021-06-25 15:53:31 +00:00
Jeremy Allison
757b7d5c6a s3: smbd: fload_inherited_info(). Always use SMB_VFS_FGETXATTR().
If the underlying fd is -1, we want this to fail with EBADF.

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2021-06-25 15:53:31 +00:00
Jeremy Allison
4670cf1da6 s3: smbd: Temporarily add protection to get_ea_value() for fsp==NULL and smb_fname==NULL.
This will go away once get_ea_value() is fully handle-based
and renamed to get_ea_value_fsp().

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2021-06-25 15:53:31 +00:00
Jeremy Allison
2dd7ac6a6e s3: smbd: get_ea_value(). If we have an fsp, *always* use it for SMB_VFS_FGETXATTR().
If the underlying fd is -1, we want this to fail with EBADF.

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2021-06-25 15:53:31 +00:00
Jeremy Allison
b63ac2ed97 s3: smbd: Move the call to fsp_set_fd(conn->cwd_fsp, AT_FDCWD) to just after SMB_VFS_CHDIR().
Once SMB_VFS_CHDIR() has been called and returned success, cwd_fsp *must* be AT_FDCWD.

We needs this so that SMB_VFS_STAT() can work correctly with
at startup time with modules that need to create pathref fsp's.

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2021-06-25 15:53:31 +00:00
Jeremy Allison
bd0bad6f58 s3: smbd: On startup file_name_hash() can be called with an absolute pathname.
This occurs on first CHDIR to the root of the share.
Ensure we don't add conn->connectpath twice when doing
creating the file name hash.

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2021-06-25 15:53:31 +00:00
Jeremy Allison
a6df051dd5 s3: smbd: In openat_pathref_fsp(), just check we're opening the same file type, not dev and inode.
As this is an internal open and we don't have any
locks around, we don't have to mandate the dev and ino
pair are the same (and in fact not doing so fixes bugs
when this is called by VFS modules that like to play tricks
with ino number on stream paths (fruit, and streams_xattr
are the two that currently do this).

There's no security advantage to checking that, as the
fd_openat() ensures this is safe. As fd_openat() does an
FSTAT on the handle, update the smb_fname stat info with
the "correct" values from the handle.

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2021-06-25 15:53:31 +00:00
Jeremy Allison
5059d37f1f s3: smbd: Make SMB_VFS_RENAMEAT() a relative call.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Noel Power <npower@samba.org>
2021-06-22 13:44:34 +00:00
Jeremy Allison
bb8e66cd2d s3: smbd: Make copy_internals() public. vfs_crossrename() will be changed to use this.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Noel Power <npower@samba.org>
2021-06-22 13:44:34 +00:00
Jeremy Allison
5ae2d4e4d0 s3: smbd: Optimization in non_widelink_open(). Don't need to vfs_ChDir(parent_dir_fname) if parent is "."
Save several system calls if we're operating at the root of the share.

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): Fri Jun 18 17:21:31 UTC 2021 on sn-devel-184
2021-06-18 17:21:31 +00:00
Jeremy Allison
c8e8633b98 s3: smbd: change_file_owner_to_parent_fsp(). Don't re-stat the pathref.
Optimization now becomes clear. We already have a valid stat of the parent
directory so we don't need to re-do a system call.

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2021-06-18 16:32:28 +00:00
Jeremy Allison
bdc749ca7e s3: smbd: Change change_file_owner_to_parent() -> change_file_owner_to_parent_fsp().
Same changes as for change_dir_owner_to_parent_fsp().

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2021-06-18 16:32:28 +00:00
Jeremy Allison
d6f6e5f7eb s3: smbd: Make change_file_owner_to_parent() static.
Only used inside open.c.

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2021-06-18 16:32:28 +00:00
Jeremy Allison
f9022f658b s3: smbd: change_dir_owner_to_parent_fsp(). Don't re-stat the pathref.
Optimization now becomes clear. We already have a valid stat of the parent
directory so we don't need to re-do a system call.

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2021-06-18 16:32:28 +00:00
Jeremy Allison
610c3ff874 s3: smbd: Change change_dir_owner_to_parent() -> change_dir_owner_to_parent_fsp().
Operate on handles only.

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2021-06-18 16:32:28 +00:00
Jeremy Allison
21d4aec1ad s3: smbd: open_directory(). Cleanup. We don't need 'int flags' here.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2021-06-18 16:32:28 +00:00
Jeremy Allison
263c95aee3 s3: smbd: Fix smbd crash on dangling symlink with posix connection calling several non-posix info levels.
Tidy up fsp == NULL checks. Remove knownfail.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=14742

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Noel Power <npower@samba.org>

Autobuild-User(master): Noel Power <npower@samba.org>
Autobuild-Date(master): Wed Jun 16 11:58:00 UTC 2021 on sn-devel-184
2021-06-16 11:58:00 +00:00
Ralph Boehme
9a2d6bcfd5 smbd: add create_conn_struct_cwd()
Compared to create_conn_struct_tos_cwd() this takes a TALLOC_CTX and
tevent_context as additional arguments and the resulting connection_struct is
stable across the lifetime of mem_ctx and ev.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=14740

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2021-06-16 05:08:29 +00:00
Ralph Boehme
16c39b81d6 smbd: pass tevent context to create_conn_struct_as_root()
The next commit will add another caller of create_conn_struct_as_root() that is
going to pass a long-lived tevent context.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=14740

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2021-06-16 05:08:29 +00:00
Jeremy Allison
4f20d310af s3: smbd: Remove erroneous TALLOC_FREE(smb_fname_parent) in change_file_owner_to_parent() error path.
Caller is still using this !

BUG: https://bugzilla.samba.org/show_bug.cgi?id=14736

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Noel Power<npower@samba.org>

Autobuild-User(master): Noel Power <npower@samba.org>
Autobuild-Date(master): Fri Jun 11 10:17:46 UTC 2021 on sn-devel-184
2021-06-11 10:17:46 +00:00
Noel Power
0f5c6c0aa0 s3/smbd: Remove unecessary 'else' block
This is an inconsequential cosmetic change, it just caught my eye
as looking a bit out of place compared to the surrounding code style.

Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
2021-06-11 09:30:53 +00:00
Noel Power
eb8d1265dc s3/smbd: dos_mode_check_compressed: remove smb_fname, conn fn parms
smb_fname is unused and we can get conn from the fsp passed in

Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
2021-06-11 09:30:53 +00:00
Noel Power
77f15f5834 s3/smbd: dos_mode_post: remove smb_fname param
Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Jeremy Allison <jra@samba.org
2021-06-11 09:30:53 +00:00
Noel Power
34a6ed2136 s3/smbd: call dos_mode_post with fsp
Next commit can remove smb_name param from dos_mode_post
signature.

Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
2021-06-11 09:30:53 +00:00
Jeremy Allison
72ace149f9 s3: smbd: Protect dos_mode_at_send() from running into a symlink.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Noel Power<npower@samba.org>
2021-06-11 09:30:53 +00:00
Jeremy Allison
a602256269 s3: smbd: Cleanup - Remove #ifdef'ed out load_inherited_info().
I commented this out but forgot to remove in the
previous mega-patch.

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 10 21:36:11 UTC 2021 on sn-devel-184
2021-06-10 21:36:11 +00:00
Jeremy Allison
210e7628ac smbd: remove more dead code from dos_mode_at_vfs_get_dosmode_done()
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2021-06-10 20:45:31 +00:00
Ralph Boehme
5c7ba35be4 smbd: remove unneeded code from dos_mode_at_vfs_get_dosmode_done()
This is not used anymore since e7a90fd7a173d8e3cd5a2bb163df61758b2b973f.

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Thu Jun 10 19:22:23 UTC 2021 on sn-devel-184
2021-06-10 19:22:23 +00:00
Andreas Schneider
eef0f73620 s3:smbd: Remove unnessesary NULL check for req
We already dereference req earlier. So if it is NULL it already
segfaulted much earlier.

Found by covscan.

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Pavel Filipenský <pfilipen@redhat.com>
Reviewed-by: Noel Power <npower@samba.org>

Autobuild-User(master): Noel Power <npower@samba.org>
Autobuild-Date(master): Thu Jun 10 11:22:19 UTC 2021 on sn-devel-184
2021-06-10 11:22:18 +00:00
Andreas Schneider
8204e5f93f s3:smbd: Remove unnessesary NULL check for fsp
We already dereference fsp earlier. So if it is NULL it already
segfaulted much earlier.

Found by covscan.

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Pavel Filipenský <pfilipen@redhat.com>
Reviewed-by: Noel Power <npower@samba.org>
2021-06-10 10:31:33 +00:00