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open and get/set NT security descriptor code.
Jeremy.
Autobuild-User: Jeremy Allison <jra@samba.org>
Autobuild-Date: Thu Oct 21 00:15:57 UTC 2010 on sn-devel-104
through Get_Pwnam_alloc(), which is the correct wrapper function. We were using
it *some* of the time anyway, so this just makes us properly consistent.
Jeremy.
Autobuild-User: Jeremy Allison <jra@samba.org>
Autobuild-Date: Wed Oct 20 16:02:12 UTC 2010 on sn-devel-104
It turns out a client can send an NTCreateX call for a new file, but specify
FILE_ATTRIBUTE_DIRECTORY in the attribute list. Windows silently strips this,
but we don't - causing the unix_mode() function to go through the "mode bits
for new directory" codepath, instead of the "mode bits for new file" codepath.
Jeremy.
This prints the security token including the privileges as strings
instead of just a bitmap.
Andrew Bartlett
Signed-off-by: Andrew Tridgell <tridge@samba.org>
This will reduce the noise from merges of the rest of the
libcli/security code, without this commit changing what code
is actually used.
This includes (along with other security headers) dom_sid.h and
security_token.h
Andrew Bartlett
Autobuild-User: Andrew Bartlett <abartlet@samba.org>
Autobuild-Date: Tue Oct 12 05:54:10 UTC 2010 on sn-devel-104
All I see is a fd_event that does not need a special destructor.
Tim, Steven, I've added the #error as well for you to remove after review.
Thanks,
Volker
Autobuild-User: Volker Lendecke <vlendec@samba.org>
Autobuild-Date: Fri Oct 8 20:48:11 UTC 2010 on sn-devel-104
As pointed out by an OEM, the code within smbd/posix_acl.c, even though passed
a const pointer to a security descriptor, still modifies the ACE entries within
it (which are not const pointers).
This means ACLs stored in the extended attribute by the acl_xattr module have
already been modified by the POSIX acl layer, and are not the original intent
of storing the "unmodified" ACL from the client.
Use dup_sec_desc to make a copy of the incoming ACL on talloc_tos() - that
is what is then modified inside smbd/posix_acl.c, leaving the original ACL
to be correctly stored in the xattr.
Jeremy.
Autobuild-User: Jeremy Allison <jra@samba.org>
Autobuild-Date: Fri Oct 8 00:37:53 UTC 2010 on sn-devel-104
This fixes a crash in the echo responder when the client started to send the
NetBIOS-Level 0x85-style keepalive packets. We did not correctly check the
packet length, so the code writing the signing seqnum overwrote memory after
the malloc'ed area for the 4 byte keepalive packet.
Autobuild-User: Jeremy Allison <jra@samba.org>
Autobuild-Date: Thu Oct 7 19:47:35 UTC 2010 on sn-devel-104
Without this, we can get a writable pipe end, but the writev call on the pipe
will block.
Autobuild-User: Volker Lendecke <vlendec@samba.org>
Autobuild-Date: Wed Oct 6 13:57:30 UTC 2010 on sn-devel-104
in the destination struct for a rename, so set the flag appropriately.
Jeremy.
Autobuild-User: Jeremy Allison <jra@samba.org>
Autobuild-Date: Wed Oct 6 00:29:51 UTC 2010 on sn-devel-104
Previously, only one fd handler was being called per main message loop
in all smbd child processes.
In the case where multiple fds are available for reading the fd
corresponding to the event closest to the beginning of the event list
would be run. Obviously this is arbitrary and could cause unfairness.
Usually, the first event fd is the network socket, meaning heavy load
of client requests can starve out other fd events such as oplock
or notify upcalls from the kernel.
In this patch, I have changed the behavior of run_events() to unset
any fd that it has already called a handler function, as well
as decrement the number of fds that were returned from select().
This allows the caller of run_events() to iterate it, until all
available fds have been handled.
I then changed the main loop in smbd child processes to iterate
run_events(). This way, all available fds are handled on each wake
of select, while still checking for timed or signalled events between
each handler function call. I also added an explicit check for
EINTR from select(), which previously was masked by the fact that
run_events() would handle any signal event before the return code
was checked.
This required a signature change to run_events() but all other callers
should have no change in their behavior. I also fixed a bug in
run_events() where it could be called with a selrtn value of -1,
doing unecessary looping through the fd_event list when no fds were
available.
Also, remove the temporary echo handler hack, as all fds should be
treated fairly now.
If select returns -1, we can't rely on the fd sets. The current code might loop
endlessly because when putting an invalid fd (the closed socket?) on the read
set, a select implementation might choose not to touch it but directly return
with EINVAL. Thus run_events will see the socket readable, which leads to a
"return true", and thus a NT_STATUS_RETRY -> same game again.
We should never get into this situation, but to me the logfiles given in bug
7518 do not reveal enough information to understand how this can happen.
TDB_CLEAR_IF_FIRST tdb's. For tdb's like gencache where we open
without CLEAR_IF_FIRST and then with CLEAR_IF_FIRST if corrupt
this is still safe to use as if opening an existing tdb the new
hash will be ignored - it's only used on creating a new tdb not
opening an old one.
Jeremy.
Found by the CodeNomicon test suites at the SNIA plugfest.
http://www.codenomicon.com/
If an invalid NetBIOS session request is received the code in name_len() in
libsmb/nmblib.c can hit an assert.
Re-write name_len() and name_extract() to use "buf/len" pairs and
always limit reads.
Jeremy.
Found by the CodeNomicon test suites at the SNIA plugfest.
http://www.codenomicon.com/
If an invalid SPNEGO packet contains no OIDs we crash in the SMB1/SMB2 server
as we indirect the first returned value OIDs[0], which is returned as NULL.
Jeremy.
The previous API was not clear as to who owned the returned session key.
This fixes a valgrind-found use-after-free in the NTLMSSP key derivation code,
and avoids making allocations - we steal and zero instead.
Andrew Bartlett
Signed-off-by: Andrew Tridgell <tridge@samba.org>
This new call is available in the merged privileges code, and
takes an enum as the parameter, rather than a bitmask.
Andrew Bartlett
Signed-off-by: Andrew Tridgell <tridge@samba.org>
The all UPPER case typedef is no longer the preferred Samba style
and this makes it easier to see that this is the IDL-derivied structure
Andrew Bartlett
Signed-off-by: Andrew Tridgell <tridge@samba.org>
Fix this to ensure that if "start" is manipulated, then "dirpath"
is changed also.
Ensures that when the path:
/a/long/file/name/path.txt
is processed, we first stat:
/a/long/file/name/path.txt
and if this fails, we try to stat:
/a/long/file/name
if this path exists (the normal case when creating a new
entry in a directory) then we no longer do the individual
path name walk, but only do case insensitive lookup on the
last component. If the stat fails we do the full pathname
walk as normal in 3.5.x and below. Metze, examine this
change for your back-port.
Jeremy.
FindFirst with 'path\to\some\dir\with\files\*'
triggers the following stat calls
path\to\some\dir\with\files\* => ENOENT
path\
path\to\
path\to\some\
path\to\some\dir\
path\to\some\dir\with\
path\to\some\dir\with\files\
path\to\some\dir\with\files\* => ENOENT
With this patch we get :
path\to\some\dir\with\files\* => ENOENT
path\to\some\dir\with\files = OK
Jeremy.
This breaks the perfcol_onefs() build.
Tim, Steve, this use of smbd_server_fd is replacable by calls into
substitute.c. I don't have a onefs environment around to build a fix, so I've
decided to insert an #error, making it not compile. The fix should be pretty
obvious, you can get the socket data via "%I" and "%i" substitutions.
This moves those arrays from dynamic to static, shared memory, removing them
from globals.c.
I did it by dumping the result of init_tables() with dump_data(). Some massage
by an editor macro made it the initializer.
