ctdb-eventscripts: Run mmlsconfig only once and use cached results

Signed-off-by: Srikrishan Malik <srimalik@in.ibm.com>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
ctdb-eventscripts: Create extra files for ganesha recovery

This adds new files for Ganesha's recovery.  myreleaseip_* are used by
the recovery thread on the node where IP is released. The releaseip_*
and tekeip_* files are used by recovery thread where IP is taken over.

Signed-off-by: Srikrishan Malik <srimalik@in.ibm.com>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
ctdb-daemon: Consult CTDB_DEBUG_HUNG_SCRIPT variable before running debug script

If CTDB_DEUB_HUNG_SCRIPT is set, use that instead of the default
debug script.  This code was dropped by mistake in commit
18c1f432102f1a5093927be9276d001180539e50.

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>

Autobuild-User(master): Martin Schwenke <martins@samba.org>
Autobuild-Date(master): Wed Feb 12 08:47:47 CET 2014 on sn-devel-104
cmdline: Remove dynconfig hooks in command line processing

This removes the ability to set paths like the sbindir, bindir, and changes the tool for setting lockdir
statedir etc to be via --option="lock dir=/var/lock".

These were originally added by commit 90a6873b0570f2691ba8d8fd11154c856bdd4415
by James Peach <jpeach@samba.org>

The important use case, qemu, does not use these options, but specifies these directories via an smb.conf.

They are being removed to remove a layer from the loadparm system, now that options
can be specified from the command line.  It will also make it easier to generate the affected
parameters from the XML documentation if this layer of indirection is removed.

Andrew Bartlett

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>

Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Wed Feb 12 16:42:14 CET 2014 on sn-devel-104
smbd: Fix an uninitialized read

We have to ship 64 bytes, and we have to initialize the whole thing.

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
smbd: Slightly simplify vfswrap_fsctl

We have the MIN macro, so use it :-)

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
auth: Make new_server_id_task() static to auth_samba4

This is not used in other parts of source3, so this patch improves
modularity and isolation of features.

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
smbXsrv_open.c: Initialize local variable.

Coverity fix.  Initialize status to NT_STATUS_OK.  Otherwise, there are
code paths that would cause the smbXsrv_open_cleanup() function to
return an uninitialized value.

Cov: 1168008

Signed-off-by: Christopher R. Hertel (crh) <crh@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>

Autobuild-User(master): Michael Adam <obnox@samba.org>
Autobuild-Date(master): Wed Feb 12 23:57:05 CET 2014 on sn-devel-104
waf:lib/replace fix iconv checks on HP/UX

we need to copy away the list of LDFLAGS
to be tried before modifying it instead of
just creating a new reference and then continuing
with a modified list while it should have been
reset back to the original value

Bug: https://bugzilla.samba.org/show_bug.cgi?id=9911

Signed-off-by: Christian Ambach <ambi@samba.org>

Reviewed-by: Andrew Bartlett <abartlet@samba.org>

Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Thu Feb 13 02:01:03 CET 2014 on sn-devel-104
ctdb-eventscripts: Deleting IPs should use the promote_secondaries option

If a primary IP address is being deleted from an interface, the
secondaries are remembered and added back after the primary is
deleted.  This is done under a lock shared by the add/del script code.
It is necessary because, by default, Linux deletes secondaries when
the corresponding primary is deleted.

There is a race here between ctdbd and the scripts, since ctdbd
doesn't know about the lock.  If ctdbd receives a release IP control
and the IP address is not on an interface then it is regarded as a
"Redundant release of IP" so no "releaseip" event is generated.  This
can occur if the IP address in question is a secondary that has been
temporarily dropped.  It is more likely if the number of secondaries
is large.

Since Linux 2.6.12 (i.e. 2005) Linux has supported a
promote_secondaries option on interfaces.  This option is currently
undocumented but that will change in Linux 3.14.  With
promote_secondaries enabled the kernel will not drop secondaries but
will promote a corresponding secondary instead.  The kernel does all
necessary locking.

Use promote_secondaries to simplify the code, avoid re-adding
secondaries, avoid re-adding routes and provide improved performance.

This could be done conditionally, with a fallback to legacy
secondary-re-adding code, but no supported Linux distribution is
running a pre-2.6.12 kernel so this is unnecessary.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
ctdb-tests-eventscripts: Testing support for promote_secondaries

Just enable this behaviour by default in the ip command stub, since
10.interface assumes/sets it.  The rc.local replacement for set_proc()
doesn't do anything...

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
ctdb-tests: New test to ensure "ctdb reloadips" manipulates IPs correctly

This adds a lot of IPs (currently 100) in a new network and deletes
them in a few steps.  First the primary is deleted and then a check is
done to ensure that the remaining IPs are all correct.  Then about 1/2
of the IPs and deleted and remaining IPs are checked.  Then the
remaining IPs are deleted and a check is done to ensure they are all
gone.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
ctdb-recoverd: Fix a bug in the LCP2 rebalancing code

srcimbl gets changed on every iteration of the loop.  The value that
should be stored for the new imbalance of the source node is
minsrcimbl.

To help diagnose this, added some extra debug that can be left in.

The extra debug changes the output of a couple of tests.  Note that
the resulting IP allocations in those tests is unchanged - only the
debug output is changed.

Also add some new tests that illustrates the bug.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
ctdb-tests: Handle interactions with monitor events

In the first case, reconfiguration can longer happen in a monitor
event, so this is no longer a problem.  Drop it.

Running a monitor event by hand no longer cancels the existing monitor
event.  Instead the hand-run event fails.  So do this differently and
just wait for a monitor event before continuing.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>

Autobuild-User(master): Amitay Isaacs <amitay@samba.org>
Autobuild-Date(master): Thu Feb 13 04:05:57 CET 2014 on sn-devel-104