IF YOU WOULD LIKE TO GET AN ACCOUNT, please write an
email to Administrator. User accounts are meant only to access repo
and report issues and/or generate pull requests.
This is a purpose-specific Git hosting for
BaseALT
projects. Thank you for your understanding!
Только зарегистрированные пользователи имеют доступ к сервису!
Для получения аккаунта, обратитесь к администратору.
a choice of invalid share mode and access denied. We must return the
access denied by preference, but also remember to break the oplocks...
This is needed for multi-user MS-Access.
Jeremy.
I hope not). If you encounter strange file-serving behavior after this
patch then back it out. I analysed our stat() usage and realised we
were doing approx. 3 stat calls per open, and 2 per getattr/setattr.
This patch should fix all that. It causes the stat struct returned
from unix_convert() (which now *must* be passed a valid SMB_STRUCT_STAT
pointer) to be passed through into the open code. This should prevent
the multiple stats that were being done so as not to violate layer
encapsulation in the API's.
Herb - if you could run a NetBench test with this code and do a
padc/par syscall test and also run with the current 2.2.0 code
and test the padc/par syscalls I'd appreciate it - you should
find the number of stat calls reduced - not sure by how much.
The patch depends on unix_convert() actually finding the file
and returning a stat struct, or returning a zero'd out stat
struct if the file didn't exist. I believe we can guarentee this
to be the case - I just wasn't confident enough to make this
an assertion before.
Ok ok - I did write this whilst at the Miami conference.....
sometimes you get a little free time at these things :-).
Jeremy.
a conn struct depending on the call.
We need this to have a clean NT ACL call interface.
This will break any existing VFS libraries (that's why this is pre-release
code).
Andrew gets credit for this one :-) :-).
In addition - added Herb's WITH_PROFILE changes - Herb - please examine
the changes I've made to the smbd/reply.c code you added. The original
code was very ugly and I have replaced it with a
START_PROFILE(x)/END_PROFILE(x) pair using the preprocessor.
Please check this compiles ok with the --with-profile switch.
Jeremy.
fd_close now calls fd_close_posix() directly.
set_posix_lock/release_posix_lock() now handle the reference counting.
More changes due when this gets moved to the file locking/posix.c
Jeremy.
When a file is being closed, once it passes the fnum and tid tests then
the locking context should be ignored when removing all locks. This is
what is done in the brl close case, but when you have outstanding
POSIX locks, then you cannot remove all the brl locks in one go, you
have to get the lock list and call do_unlock individually. As this
uses global_smbpid as the locking context, you need to make sure
that this is set correctly for the specific lock being removed. I
now do this by storing the smbpid in each entry in the unlock list returned from
the query call. I removed the smbpid from fsp (not needed) and
things seem ok (even with the stupid smbpid tricks that smbtorture plays :-).
Jeremy.
smbpid used when a file was opened in the files_struct. Else we use
the wrong global_smbpid when we are closing the file and trying to
remove the brl locks - this causes the brl locks to be left when the
file is closed as the samba_context check fails.
Jeremy.
removed from the smbd/open.c code.
We now use a dlink list of structures indexed by dev/inode to store
all pending fd's for close. This could be rewritten to use lib/hash.c
if this is discovered to be too slow in use.
Andrew, please take a look and let me know if this is what you
had in mind.
Jeremy.
test. Was miscounting posix locks, plus was not taking into account
the case where other_fsp == fsp in the 'move locks' case. DOH ! This
code will be re-written anyway :-).
Jeremy.
open on the same dev/inode pair with existing POSIX locks.
This is done at the smbd/open layer, so smbd just calls fd_close() and
the transfer of any open fd's is done under the covers of fd_close().
When an fsp is closed and no other fsp's open on the same dev/inode
pair have existing POSIX locks then all fd's associated with this fsp
are closed.
Now only the hard part of doing the POSIX range unlock code when read
locks overlap remains for full POSIX/SMB lock integration....
Jeremy.
fsp->open is no longer needed (if an fsp pointer is valid, then it's open :-).
NB for Luke, this patch also did not apply to TNG. TNG is not yet
identical w.r.t file serving with HEAD. This makes it impossible for
me to help maintain TNG. Please fix asap.
lib/substitute.c: Removed unused variable (pidstr).
Jeremy.
new open mechanism Andrew & I discussed.
config.sub:
configure: Included the QNX patch.
include/vfs.h:
smbd/vfs-wrap.c:
smbd/vfs.c: Added ftruncate vfs call (needed).
Note that we will also need locking calls in the vfs (to be added).
lib/util_unistr.c:
nmbd/nmbd_processlogon.c: Fix for NT domain logons causing nmbd to core dump.
Also fix for sidsize DOS bug.
locking/locking.c: Check value of ret before using it for memdup.
printing/printing.c: Convert print_fsp_open to return an allocated fsp.
rpc_server/srv_lsa.c: Fix for NT domain logons.
I have removed all use of lp_share_modes() from the code (although I
left the parameter in the table for backwards compatibility). It no longer makes
sense for this to exist.
smbd/close.c: Removed lp_share_modes().
smbd/fileio.c: Fixed parameters to unlock_share_entry call in panic code.
smbd/files.c: Correctly set the unix_ERR_code to ERRnofids on fsp allocation fail.
smbd/nttrans.c:
smbd/reply.c:
smbd/trans2.c: Changed all occurrences of open_file_shared/open_directory/
open_file_stat to return an fsp from the call.
smbd/open.c: Changed all occurrences of open_file_shared/open_directory/
open_file_stat to return an fsp from the call.
In addition I have fixed a long standing race condition in the deny mode
processing w.r.t. two smbd's creating a file. Andrew, please note that
your original idea of using open with O_EXCL in this case would not work
(I went over the races very carefully) and so we must re-check deny modes
*after* the open() call returns. This is because there is a race between
the open with O_EXCL and the lock of the share mode entry. Imagine the
case where the first smbd does the open with O_EXCL and a deny mode of DENY_ALL,
but is pre-empted before it locks the share modes and creates the deny
mode entry for DENY_ALL. A second smbd could then come in with O_RDONLY
and a deny mode of DENY_NONE and the two opens would be allowed.
The *only* way to fix this race is to lock the share modes after the
open and then do the deny mode checks *after* this lock in the case
where the file did not originally exist.
This code will need extensive testing but seems to initially work.
Jeremy.
------------
The following series of commits are for the new tdb based printing
backend. This completely replaces our old printing backend.
Major changes include:
- all print ops are now done in printing/*.c rather than scattered all
over the place
- system job ids are decoupled from SMB job ids
- the lpq parsers don't need to be nearly so smart, they only need to
parse the filename, the status and system job id
- we can store lots more info about a job, including the full job name
- the queue cache control is much better
I also added a new utility routine file_lines_load() that loads a text
file and parses it into lines. This is used in out lpq parsing and I
also want to use it to replace all of our fgets() based code in other
places.
handling to printing/printing.c
most of this was just replacing things like fsp->fd_ptr->fd with fsp->fd
the changes in open.c are quite dramatic. Most of it is removing all
the functions that handled the fd multiplexing
I've finally got the access table code right for the case where the
two opens are on the same connection. It is _incredibly_ complex, but
now all 1296 test cases pass.
I'll be very surprised if anyone by MS and us gets this right at
CIFS2000
*.sym and *.com files. I still find it incredible that SMB treats file
locking differently depending on the file name - that is so ugly it
stinks.
anyway, we now behave the same way as NT, except for the
same-connection case which I'm still working on.
: If a file is resident on NT and the first user opens it read/write with DENY_READ then a subsequent
: attempt by a second user (running under Windows 95) to open it read/write DENY_NONE fails.
: Under samba 2.0.5a the second open succeeds but the file is write only.
Jeremy.
instead of either sysv or mmap shared memory or lock files.
this means we can now completely remove
locking_shm.c
locking_slow.c
shmem.c
shmem_sysv.c
and lots of other things also got simpler
locking.c got a bit larger, but is much better compartmentalised now
Tidied up some of the mess (no other word for it). Still doesn't
compile cleanly. There are calls with incorrect parameters that
don't seem to be doing the right thing.
This code still needs surgery :-(.
Jeremy.
that caused NetBench to fail as the wrong error code was being
returned from a getatr call. Change was not to set the
unix_ERR_class global when you are not returning an error. This
is a big of Samba internal folklore that is *important*.
Jeremy.
This was trickier than it looks :-). Check out the new DELETE_ON_CLOSE
flag in the share modes and the new code that iterates through all open
files on the same device and inode in files.c and trans2.c
Also changed the code that modifies share mode entries to take
generic function pointers rather than doing a specific thing so
this sort of change should be easier in the future.
Jeremy.
lib/util.c: Fixed Luke's set_first_token() function - should return void.
smbd/close.c: Move delete_on_close into file_fd_struct structure.
smbd/ipc.c: Changed local_machine back to fstring.
smbd/nttrans.c: Use defines for mapping share modes.
smbd/open.c: Move delete_on_close into file_fd_struct structure, added code for ALLOW_SHARE_DELETE.
smbd/reply.c: Use defines for mapping share modes.
smbd/trans2.c: Move delete_on_close into file_fd_struct structure.
Jeremy.
rpc_client/cli_pipe.c: Inlined code removed from smbdes.c
rpc_server/srv_samr.c: Fixed unused variable warning.
rpc_server/srv_util.c: Inlined code removed from smbdes.c
Luke - the above changes are the first part of the changes
you and I discussed as being neccessary at the CIFS conference.
*PLEASE REVIEW THESE CHANGES* - make sure I haven't broken
any of the authenticated DCE/RPC code.
smbd/nttrans.c: Fixed to allow NT5.0beta2 to use Samba shares
with NT SMB support.
smbd/open.c: Fixed mkdir when called from nttrans calls.
smbd/server.c: Set correct size for strcpy of global_myworkgroup.
Jeremy.
