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mirror of https://github.com/samba-team/samba.git synced 2025-01-18 06:04:06 +03:00

4434 Commits

Author SHA1 Message Date
Volker Lendecke
4a46c6a882 smbd: Allow symlinks to be read via GET_REPARSE_POINT
... to be used soon

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2024-11-22 09:50:37 +00:00
Volker Lendecke
6e9c6dd6d6 vfs: Don't ever call openat(-1, ...) for relative paths
This is always a bug, we should never do this. In one iteration of my
code I was doing this, which led to an invalid fallback code, which
itself lead to an infinite recursion. Make this more obvious with an
assert.

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Tue Nov 12 15:13:03 UTC 2024 on atb-devel-224
2024-11-12 15:13:03 +00:00
Volker Lendecke
dade2981c3 vfs: Only call openat for valid params in fake_acls_stat
openat(-1, "relative path", ..) is invalid. I've tried to also tighten
this down to just relative paths (i.e. base_name[0] != '/'), but
non_widelink_open makes modifications further down that make this more
difficult.

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2024-11-12 13:44:32 +00:00
Volker Lendecke
45f50eee06 vfs: Fix streams_xattr_openat
This emulates openat, and trying to open a non-existing file should
result in ENOENT and not ENOATTR

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2024-11-12 12:09:35 +00:00
Volker Lendecke
ea597019aa vfs: Simplify streams_xattr_openat()
Don't go via NTSTATUS in error handling

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2024-11-12 12:09:35 +00:00
Volker Lendecke
bea01e845c vfs: Convert streams_xattr_get_name() to return 0/errno
This function is pretty simple, this avoids a few calls to
map_errno_from_nt_status in the callers

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2024-11-12 12:09:35 +00:00
Volker Lendecke
7430831f88 smbd: Convert get_ea_value_fsp() to return 0/errno
Avoid a map_errno_from_nt_status()

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2024-11-12 12:09:35 +00:00
Volker Lendecke
8a64775334 vfs_fruit: Align a few integer types
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2024-11-12 12:09:34 +00:00
Volker Lendecke
63f0b59cbe vfs_fruit: Simplify filter_empty_rsrc_stream()
Inspired by Coverity finding CID 1609584 Overflowed constant -- not
sure it fixes it.

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2024-11-12 12:09:34 +00:00
Ralph Boehme
4f6cb4ab86 vfs_tsmsm: trigger NOTIFY_ACTION_DIRLEASE_BREAK when changing offline attribute
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2024-11-05 14:39:30 +00:00
Ralph Boehme
306543a071 vfs_gpfs: trigger NOTIFY_ACTION_DIRLEASE_BREAK when changing offline attribute
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2024-11-05 14:39:30 +00:00
Ralph Boehme
c1ac9e6532 smbd: pass lease, if any, to notify_fname()
notify_fname() for NOTIFY_ACTION_DIRLEASE_BREAK will soon need the lease of the
current open and to implement "MS-FSA 2.1.4.12 Algorithm to Check for an Oplock
Break" with flags=PARENT_OBJECT.

No change in behaviour for now, all callers pass lease=NULL;

Also change path arg to struct smb_filename.

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2024-11-05 14:39:30 +00:00
Anoop C S
e3d35ca694 vfs_ceph_new: Remove unused symbol for ceph_readdir
ce459ddbcd0f32252858a7640f6871057eb14645 recently switched the readdir
implementation to use ceph_readdir_r(). Thus ceph_readdir() is
unnecessarily loaded which is no longer used.

https://bugzilla.samba.org/show_bug.cgi?id=15703

Signed-off-by: Anoop C S <anoopcs@samba.org>
Reviewed-by: John Mulligan <jmulligan@redhat.com>

Autobuild-User(master): Anoop C S <anoopcs@samba.org>
Autobuild-Date(master): Sun Nov  3 11:07:23 UTC 2024 on atb-devel-224
2024-11-03 11:07:23 +00:00
Shachar Sharon
341ff48a5a vfs_ceph_new: log open-flags upon release-fh
Store the set of open O_XXX flags as part of the referenced file-handle
to allow more verbose debug-logging info upon close. This should ease
the developer's logging analysis where same inode is opened multiple
times but with different flags set.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15703

Signed-off-by: Shachar Sharon <ssharon@redhat.com>
Reviewed-by: Anoop C S <anoopcs@samba.org>
Reviewed-by: John Mulligan <jmulligan@redhat.com>
2024-11-03 09:59:37 +00:00
Shachar Sharon
73d5503a90 vfs_ceph_new: improved vfs-opers logging
Have more verbose and explicit values in various DBG_DEBUG logging. In
particular, do not use the redundant '__func__' argument as it's info is
already provided via the DBG_ logging macros.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15703

Signed-off-by: Shachar Sharon <ssharon@redhat.com>
Reviewed-by: Anoop C S <anoopcs@samba.org>
Reviewed-by: John Mulligan <jmulligan@redhat.com>
2024-11-03 09:59:37 +00:00
Shachar Sharon
2153bedc8e vfs_ceph_new: improved mount logging
Add extra debug-logging to mount/umount flows, with more verbose info.
Try to make logging messages follow a 'key=value' format.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15703

Signed-off-by: Shachar Sharon <ssharon@redhat.com>
Reviewed-by: Anoop C S <anoopcs@samba.org>
Reviewed-by: John Mulligan <jmulligan@redhat.com>
2024-11-03 09:59:37 +00:00
Shachar Sharon
866b872cdb vfs_ceph_new: improve mount cache-entry add
Use boolean return value from cephmount_cache_add, to align code-style
with other caphmount helper functions. Returns false in case of memory
allocation failure, true otherwise (success).

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15703

Signed-off-by: Shachar Sharon <ssharon@redhat.com>
Reviewed-by: Anoop C S <anoopcs@samba.org>
Reviewed-by: John Mulligan <jmulligan@redhat.com>
2024-11-03 09:59:37 +00:00
Shachar Sharon
29a9d18d2d vfs_ceph_new: improve mount cache-entry ref-count
Use singed int32_t for cached mount-entries reference counting. Define
helper function for inc/dec ref-count which also provides proper
logging. Prefer boolean return-value for 'cephmount_cache_remove' as
'int' is often used as error indicator within the context of libcephfs
and this VFS module.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15703

Signed-off-by: Shachar Sharon <ssharon@redhat.com>
Reviewed-by: Anoop C S <anoopcs@samba.org>
Reviewed-by: John Mulligan <jmulligan@redhat.com>
2024-11-03 09:59:37 +00:00
Shachar Sharon
1f7581c9ed vfs_ceph_new: avoid setting errno in cephmount_cache_update
Do not set 'errno' to ENOENT in cephmount_cache_update. Setting this
errno value upon newly inserted entry may cause vfs_ceph_connect to
change errno to non-zero value even though the final result is OK.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15703

Signed-off-by: Shachar Sharon <ssharon@redhat.com>
Reviewed-by: Anoop C S <anoopcs@samba.org>
Reviewed-by: John Mulligan <jmulligan@redhat.com>
2024-11-03 09:59:37 +00:00
Shachar Sharon
d9b872afee vfs_ceph_new: refactor error-case in cephmount_mount_fs
Align code-style of 'cephmount_mount_fs' with rest of the code: use
'goto' for bail-out upon error case (with proper cleanups). For the
common case of successful operation complete execution and return final
value. Added extra debug-logging for good-path case.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15703

Signed-off-by: Shachar Sharon <ssharon@redhat.com>
Reviewed-by: Anoop C S <anoopcs@samba.org>
Reviewed-by: John Mulligan <jmulligan@redhat.com>
2024-11-03 09:59:37 +00:00
Ralph Boehme
2065f00656 smbd: convert fsp->posix_flags to fsp->fsp_flags.posix_open
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): Fri Oct 25 11:50:01 UTC 2024 on atb-devel-224
2024-10-25 11:50:01 +00:00
Ralph Boehme
149f77b63e smbd: remove seperate flag FSP_POSIX_FLAGS_PATHNAMES
Essentially FSP_POSIX_FLAGS_OPEN implies FSP_POSIX_FLAGS_PATHNAMES, so we can
just remove FSP_POSIX_FLAGS_PATHNAMES and simplify things.

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
2024-10-25 10:42:32 +00:00
Ralph Boehme
38b5c8c663 smbd: remove "fruit:posix_rename"
This option of the vfs_fruit VFS module that could be used to enable POSIX
directory rename behaviour for OS X clients has been removed as it could result
in severe problems for Windows clients.

As a possible workaround it is possible to prevent creation of .DS_Store files
(a Finder thingy to store directory view settings) on network mounts by running

  $ defaults write com.apple.desktopservices DSDontWriteNetworkStores true

on the Mac.

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
2024-10-25 10:42:32 +00:00
Shachar Sharon
ce459ddbcd vfs_ceph_new: switch to ceph_readdir_r
Prefer a safe version of ceph_readdir, where the directory entry struct
is allocated by the caller. Use a dynamic-allocated 'struct dirent'
which is associated with a directory vfs_ceph_fh (optional), which is
allocated on-the-fly upon start of READDIR and released at the end or
CLOSEDIR (or unlikely readdir error).

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15703

Signed-off-by: Shachar Sharon <ssharon@redhat.com>
Reviewed-by: John Mulligan <jmulligan@redhat.com>
Reviewed-by: Anoop C S <anoopcs@samba.org>

Autobuild-User(master): Anoop C S <anoopcs@samba.org>
Autobuild-Date(master): Fri Oct 25 10:29:44 UTC 2024 on atb-devel-224
2024-10-25 10:29:44 +00:00
Anoop C S
3c6ca81aad vfs_glusterfs: Retrieve fs capabilities using vfs_get_fs_capabilities
vfs_glusterfs is supposed to be the last entry when listed with
other vfs modules. This is due to the fact that the connection path
is not local to the server but relative to the virtual remote file
system beneath it. Especially SMB_VFS_FS_CAPABILITIES implementation
from vfs_default is likely to return incorrect results based on the
connection path assumed to be local to the server which might not be
the case with glusterfs module stacked. Therefore it doesn't make sense
to pass through any vfs interface implementations further down the line
to vfs_default.

Instead make use of get_fs_capabilties to start with already known fs
capabilties from connect phase.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15716

Signed-off-by: Anoop C S <anoopcs@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Mon Oct  7 13:36:11 UTC 2024 on atb-devel-224
2024-10-07 13:36:11 +00:00
Anoop C S
9524b402f8 vfs_ceph_new: Retrieve fs capabilties using vfs_get_fs_capabilities
Make use of get_fs_capabilties to start with already known fs
capabilties from connect phase.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15716

Signed-off-by: Anoop C S <anoopcs@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2024-10-07 12:25:30 +00:00
Anoop C S
58cf7a6320 vfs_ceph_new: Populate fs capabilities within vfs_ceph_statvfs
SMB_VFS_STATVFS implementation for vfs_ceph_new failed to fill in the
FsCapabilities field for vfs_statvfs_struct. Insert the minimum
required values for defining the capabilties of a ceph file system.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15716

Signed-off-by: Anoop C S <anoopcs@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2024-10-07 12:25:30 +00:00
Anoop C S
44e4e1eade vfs_ceph: Retrieve fs capabilties using vfs_get_fs_capabilities
vfs_ceph is supposed to be the last entry when listed with other vfs
modules. This is due to the fact that the connection path is not local
to the server but relative to the virtual remote file system beneath
it. Especially SMB_VFS_FS_CAPABILITIES implementation from vfs_default
is likely to return incorrect results based on the connection path
assumed to be local to the server which might not be the case with
ceph module stacked. Therefore it doesn't make sense to pass through
any vfs interface implementations further down the line to vfs_default.

Instead make use of get_fs_capabilties to start with already known fs
capabilties from connect phase.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15716

Signed-off-by: Anoop C S <anoopcs@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2024-10-07 12:25:30 +00:00
Anoop C S
0d922d06a7 vfs_ceph: Populate fs capabilities within cephwrap_statvfs
SMB_VFS_STATVFS implementation for vfs_ceph failed to fill in the
FsCapabilities field for vfs_statvfs_struct. Insert the minimum
required values for defining the capabilties of a ceph file system.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15716

Signed-off-by: Anoop C S <anoopcs@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2024-10-07 12:25:30 +00:00
Anoop C S
9bced4429e vfs_default: Retrieve fs capabilites using vfs_get_fs_capabilties
Make use of get_fs_capabilties to start with already known fs
capabilties from connect phase.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15716

Signed-off-by: Anoop C S <anoopcs@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2024-10-07 12:25:30 +00:00
Volker Lendecke
14a5336802 lib: Factor out ADD_TO_MALLOC_ARRAY()
ADD_TO_ARRAY with an explicit NULL mem_ctx is only used in 3
places. I've checked the other places, and I think I made sure that the
mem_ctx being passed in is non-NULL everywhere else.

This makes the "legacy" use with SMB_REALLOC more obvious.

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2024-10-02 13:12:30 +00:00
Christof Schmitt
30b0fa892a shadow_copy2: Ignore VFS_OPEN_HOW_WITH_BACKUP_INTENT
d1846452e96 vfs: Add VFS_OPEN_HOW_WITH_BACKUP_INTENT introduced
VFS_OPEN_HOW_WITH_BACKUP_INTENT for files opened with
FILE_OPEN_FOR_BACKUP_INTENT. shadow_copy2 refuses the open on a file if
any flage in how.resolve is set. Change the check in shadow_copy2 to
allow opening of files with VFS_OPEN_HOW_WITH_BACKUP_INTENT.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15730

Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>

Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Wed Oct  2 08:06:38 UTC 2024 on atb-devel-224
2024-10-02 08:06:38 +00:00
Volker Lendecke
f525800613 lib: Avoid unused includes
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Noel Power <noel.power@suse.com>
2024-09-20 17:13:37 +00:00
Volker Lendecke
9c22cee9d0 vfs: Simplify capdecode() with hex_byte()
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Noel Power <noel.power@suse.com>
2024-09-20 17:13:37 +00:00
Volker Lendecke
4803e85d7d vfs: Simplify capencode() with nybble_to_hex_lower()
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Noel Power <noel.power@suse.com>
2024-09-20 17:13:37 +00:00
Volker Lendecke
eaaba242a2 libsmb: Use nybble_to_hex_upper() in virusfilter_url_quote()
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Noel Power <noel.power@suse.com>
2024-09-20 17:13:37 +00:00
Stefan Metzmacher
692ed832df vfs_error_inject: add 'error_inject:durable_reconnect = st_ex_nlink'
This allows to simulate durable reconnect failures because the stat
information of the file changed.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15624

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>
2024-09-19 18:27:33 +00:00
Anoop C S
095ece43a2 wscript_build: Do not link vfs_ceph_new against libcephfs
vfs_ceph_new dynamically loads the appropriate libcephfs shared
libraries which means that we don't statically link against it.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15703

Signed-off-by: Anoop C S <anoopcs@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>
2024-09-12 15:36:32 +00:00
Anoop C S
962a40a6ff vfs_ceph_new: Use function pointers for API calls
Replace direct function calls with pointers holding their equivalent
addresses.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15703

Signed-off-by: Anoop C S <anoopcs@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>
2024-09-12 15:36:32 +00:00
Anoop C S
d5926cf492 vfs_ceph_new: Pass module config to userperm helpers
userperm helpers will switch to function references instead of direct
invocation of APIs. This would mean the matching config structure is
passed to those helpers.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15703

Signed-off-by: Anoop C S <anoopcs@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>
2024-09-12 15:36:32 +00:00
Anoop C S
250af54250 vfs_ceph_new: Hold a config reference in vfs_ceph_fh
This is required to perform the cleanup when fsp extension destructor is
called as part of VFS_REMOVE_FSP_EXTENSION where mount information and
function references are to be used in upcoming changes.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15703

Signed-off-by: Anoop C S <anoopcs@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>
2024-09-12 15:36:32 +00:00
Anoop C S
8c1d774c7e vfs_ceph_new: Call vfs_ceph_userperm_new with handle->conn
vfs_ceph_userperm_new() only need connection structure from handle
for fetching the current unix token. Therefore modify the signature
to accept just handle->conn.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15703

Signed-off-by: Anoop C S <anoopcs@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>
2024-09-12 15:36:31 +00:00
Guenther Deschner
e4fc1df4b4 vfs_ceph_new: Populate function pointers with addresses
Use dlysm() for assigning addresses to already declared libcephfs
low-level API function pointers.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15703

Pair-Programmed-With: Anoop C S <anoopcs@samba.org>
Signed-off-by: Guenther Deschner <gd@samba.org>
Signed-off-by: Anoop C S <anoopcs@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>
2024-09-12 15:36:31 +00:00
Guenther Deschner
0d2ad13d8e vfs_ceph_new: Add required function pointers to config
Declare necessary libcephfs low-level APIs as function pointers to be
assigned with corresponding loadable addresses.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15703

Pair-Programmed-With: Anoop C S <anoopcs@samba.org>
Signed-off-by: Guenther Deschner <gd@samba.org>
Signed-off-by: Anoop C S <anoopcs@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>
2024-09-12 15:36:31 +00:00
Guenther Deschner
47812a2791 vfs_ceph_new: Dynamically open library for 'proxy' mode
Use dlopen() to load either of the shared libraries(libcephfs.so or
libcephfs_proxy.so) based on the configuration for 'proxy' module
parameter. Further down the line we will define the required APIs
as function pointers within the config structure.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15703

Pair-Programmed-With: Anoop C S <anoopcs@samba.org>
Signed-off-by: Guenther Deschner <gd@samba.org>
Signed-off-by: Anoop C S <anoopcs@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>
2024-09-12 15:36:31 +00:00
Guenther Deschner
90464bdcaf vfs_ceph_new: Introduce new parametric option 'proxy'
Provide early support for consuming yet to come libcephfs proxy[1] for
optimized resource utilization. For better control we make use of an
additional module specific option 'proxy' to specify the intent to load
proxy library. With the default value 'no' a regular cephfs connection
is established. There is also an 'auto' mode which can fall back to the
regular connection if proxy requirements are not met.

[1] https://github.com/ceph/ceph/pull/58376

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15703

Signed-off-by: Guenther Deschner <gd@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>
2024-09-12 15:36:31 +00:00
Guenther Deschner
f1d418181d vfs_ceph_new: Add a new struct to hold ceph module config
Consolidate all required configuration related data under a dedicated
structure named vfs_ceph_config. As of now it includes the location of
configuration file, file system name, ceph client user id and mount
related information. This is expected to grow in future with more
details as and when required. Apart from that small cleanups are also
done to make code more robust.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15703

Pair-Programmed-With: Anoop C S <anoopcs@samba.org>
Signed-off-by: Guenther Deschner <gd@samba.org>
Signed-off-by: Anoop C S <anoopcs@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>
2024-09-12 15:36:31 +00:00
Shachar Sharon
0cedd74e47 vfs_ceph_new: implement DFS hooks using libcephfs low-level APIs
Refactor the VFS hooks 'create_dfs_pathat_fn' and 'read_dfs_pathat_fn'
in 'vfs_ceph_new.c' to use libcephfs low-level APIs: instead of using
path-based operations (as done in legacy 'vfs_ceph.c') use inode based
operations to create and read msdfs symbolic-links values.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15703

Signed-off-by: Shachar Sharon <ssharon@redhat.com>
Reviewed-by: Anoop C S <anoopcs@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>

Autobuild-User(master): Günther Deschner <gd@samba.org>
Autobuild-Date(master): Wed Sep 11 19:09:41 UTC 2024 on atb-devel-224
2024-09-11 19:09:41 +00:00
Shachar Sharon
22182f90e8 vfs_ceph_new: handle case of readlinkat with empty name string
Commit 53c9269b (vfs_ceph_new: use low-level APIs for symlink/readlink)
introduced readlinkat using libcephfs low-level APIs. However, it does
not handle properly the case where readlinkat operates on empty name
string (see man readlinkat(2)), such as:

  fd = openat(dirfd, symname, O_PATH | O_NOFOLLOW, 0);
  readlinkat(fd, "", buf, bufsiz);

Handle this special case of readlinkat with empty name string by using
a reference to the symlink inode itself.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15686

Signed-off-by: Shachar Sharon <ssharon@redhat.com>
Reviewed-by: Anoop C S <anoopcs@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>

Autobuild-User(master): Anoop C S <anoopcs@samba.org>
Autobuild-Date(master): Fri Aug 30 10:42:27 UTC 2024 on atb-devel-224
2024-08-30 10:42:27 +00:00
Shachar Sharon
cbba4008a7 vfs_ceph_new: add missing newline in debug-logging
Commit d00f20f3 ("vfs_ceph_new: debug-log upon libcephfs low-level
calls") introduced debug-logging before each call to libcephfs low-level
APIs. Unfortunately, one of the logging messages missed the terminating
newline ('\n') character.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15686

Signed-off-by: Shachar Sharon <ssharon@redhat.com>
Reviewed-by: John Mulligan <jmulligan@samba.org>
Reviewed-by: Anoop C S <anoopcs@samba.org>

Autobuild-User(master): Anoop C S <anoopcs@samba.org>
Autobuild-Date(master): Wed Aug 21 14:18:07 UTC 2024 on atb-devel-224
2024-08-21 14:18:07 +00:00