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I know Volker will look at this closely so here's the explaination :-).
Originally on a case-sensitive share we simply did a stat (or lstat)
call and returned success of fail based on the result. However this
failed to take account of incoming paths with a wildcard (which must
always fail, and with different error messages depending on whether
the wildcard is the last component or in the path). Also it failed
to take account of a stat fail with ENOENT due to a missing component
of the path as the last component (which is ok as it could be a new
file) or if the ENOENT was due to the missing component within
the path (not the last component) - which must return the correct
error. What this means is that with "case sensitive = yes" we do
one more talloc call (to get the parent directory) and one more
stat call (on the parent directory) in the case where the stat
call fails. I think this is an acceptable overhead to enable
case sensitive shares to return the correct error messages for
applications. Volker please examine carefully :-).
Jeremy.
A side effect of this change is that RAW-SFILEINFO now runs the whole
suite instead of just the first test. I changed the name of the first
test to RAW-SFILEINFO-BASE and changed all of the selftest scripts
that call it.
RAW-CHKPATH when case sensitive = yes, but isn't the correct way to do
it. I'm testing a larger patch to smbd/filename.c that should fix this
correctly, and will add a torture test to ensure RAW-CHKPATH is run against
a case sensitive share once this is done.
Jeremy.
Required for cluster systems working in a Samba domain. With NT4 this won't
work, but real NT4 DCs should not be around in environments that pay big bucks
for a cluster... And if they are, they can always install a Samba DC trusting
that NT4 domain.
it worked in 3.3.x and 3.2.x. UCF_POSIX_PATHNAMES may no longer be needed,
as lp_posix_pathnames() being set isn't the same as case handling from
NtCreateX (lp_posix_pathnames() changes the STAT calls to LSTAT, not
the case semantics).
Jeremy.
This can be used to also test tdb transactions on clustered installations
throught ctdb. The test is modeled after the ctdb_transaction.c test program
from the ctdb source code. It runs transactions in a tight loop on a test
database called "transactions.tdb" (by default), increasing a counter in each
iteration. In a clustered environment, a counter is maintained for each node.
Michael
