10 Commits

Author	SHA1	Message	Date
Tim Potter	88a7b2c3f8	More compiler warning fixes.	-
Jeremy Allison	b35ca2c6b1	Fix from matthew.hart@veritas.com - bad error return from linux_oplock_receive_message(). ... Jeremy.	-
Jeremy Allison	0be41d5158	Merge of new 2.2 code into HEAD (Gerald I hate you :-) :-). Allows new SAMR ... RPC code to merge with new passdb code. Currently rpcclient doesn't compile. I'm working on it... Jeremy.	-
Jeremy Allison	b737c784e3	Paranoia changes to ensure that anything touched by a signal handler ... and the main code is declared as VOLATILE SIG_ATOMIC_T. Jeremy.	-
Andrew Tridgell	c6be511fcc	enable the Linux change notify code and change some notify debug code	-
Andrew Tridgell	44766c39e0	totally rewrote the async signal, notification and oplock notification ... handling in Samba. This was needed due to several limitations and races in the previous code - as a side effect the new code is much cleaner :) in summary: - changed sys_select() to avoid a signal/select race condition. It is a rare race but once we have signals doing notification and oplocks it is important. - changed our main processing loop to take advantage of the new sys_select semantics - split the notify code into implementaion dependent and general parts. Added the following structure that defines an implementation: struct cnotify_fns { void * (*register_notify)(connection_struct *conn, char *path, uint32 flags); BOOL (*check_notify)(connection_struct *conn, uint16 vuid, char *path, uint32 flags, void *data, time_t t); void (*remove_notify)(void *data); }; then I wrote two implementations, one using hash/poll (like our old code) and the other using the new Linux kernel change notify. It should be easy to add other change notify implementations by creating a sructure of the above type. - fixed a bug in change notify where we were returning the wrong error code. - rewrote the core change notify code to be much simpler - moved to real-time signals for leases and change notify Amazingly, it all seems to work. I was very surprised!	-
Andrew Tridgell	cc0e919fdc	a better test for oplocks being enabled in this kernel	-
Andrew Tridgell	afa98d511f	fixed Linux capabilities handling ... I used a trick where CAP_LEASE isn't claimed until it is needed. This means we avoid a system call per setreuid(), and never call capset() unless a user tries to get a oplock on a file that they don't own	-
Andrew Tridgell	b28cc4163b	Linux kernel oplocks now seem to work, but need a _lot_ of testing ... I had to modify sys_select() to not loop on EINTR. I added a wrapper called sys_select_intr() which gives the old behaviour.	-
Andrew Tridgell	3253085d98	a first pass at Linux kernel oplocks support	-