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Current implementation mask NDR_ errors implicitly.
Thus the caller has no opportunity handle such an error.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
There was a bug in tdb where the
tdb_brlock(tdb, GLOBAL_LOCK, F_UNLCK, F_SETLKW, 0, 1);
(ending the transaction-"mutex") was done before the
/* remove the recovery marker */
This means that when a transaction is committed there is a window where another
opener of the file sees the transaction marker while the transaction committer
is still fully functional and working on it. This led to transaction being
rolled back by that second opener of the file while transaction_commit() gave
no error to the caller.
This patch moves the F_UNLCK to after the recovery marker was removed, closing
this window.
Passing NULL as dest_realm for cli_session_setup_spnego() was
always using our own realm (as for a NetBIOS name). Change this
to look for the mapped realm using krb5_get_host_realm() if
the destination machine name is a DNS name (contains a '.').
Could get fancier with DNS name detection (length, etc.) but
this will do for now.
Jeremy.
The destname malloc size was not taking into account the 1 extra byte
needed if a string without a leading '/' was passed in and that slash
was added.
This would cause the '\0' byte to be written past the end of the
malloced destname string and corrupt whatever heap memory was there.
This problem would be hit if a share name was given in smb.conf without
a leading '/' and if it was the exact size of the allocated STRDUP memory
which in some implementations of malloc is a power of 2.
Normally clistr_push_fn() can depend upon cli->outbuf being
initialized by negprot and sessionsetup packets, and cli->outbuf[smb_flgs2] being
correctly set with FLAGS2_UNICODE_STRINGS when cli_setup_packet() is called. When
all the sessionsetups are async, then cli_setup_packet() is never called, the async
code uses cli_setup_packet_buf() - which initializes the allocated async buffer,
not the cli->outbuf one. So the first time clistr_push_fn() is called is from
libsmb/clidfs.c:cli_dfs_get_referral(), just after the connection and tconX.
In this case cli->outbuf has never been initialized, and cli->outbuf[smb_flgs2] = 0
so the DFS query pushes ASCII on the wire, which is not what we want :-).
Remove the dependency on cli->outbuf[smb_flgs2] in clistr_push_fn(), and
fake up a SVAL(cli->outbuf, smb_flg2) value using cli_ucs2(cli) function
instead, which has been initialized. We only care about the FLAGS2_UNICODE_STRINGS
bit anyway.
I don't think this is an issue for 3.5.0 as the sessionsetup is still
synchronous there, but Volker PLEASE CHECK !
Jeremy.
[MS-WINSRA] — v20091104 was wrong
regarding section "2.2.10.1 Name Record"
If the name buffer is already 4 byte aligned
Windows (at least 2003 SP1 and 2008) add 4 extra
bytes. This can happen when the name has a scope.
metze
Keep all heimdal related plugin code within hdb_samba4.c
Move interfaces needed by multiple plugins in db-glue.c
Move sequence context in main db context so that we do
not depend on db->hdb_dbc in the common code.
Remove unnecessary paremeters from function prototypes
