This implements the kernel portion of GRE on Linux. It consists
of a backported module that provides the GRE capabilities of 2.6.32
plus bug fixes to kernels 2.6.18+.
It is inconvenient to type the whole path to the Unix daemon socket when
using ovs-appctl. Allow the name of the daemon to be used instead when
a pidfile exists in the default location, and contact ovs-vswitchd by
default.
Also, the various options for manipulating vlog were invented before the
general-purpose command mechanism existed. Get rid of all of the action
options in favor of just specifying the command to be executed as
non-option arguments.
Finally, there simply wasn't much value in allowing multiple targets or
options to be specified; these variations were never used in practice. So
simplify the interface by making it one target, one action per invocation.
Also, make ovs-vsctl use the same syntax for its --target option.
Based on work by Justin Pettit.
NOX packages depend on a particular version of openvswitch-pki, which
depends on openvswitch-common without specifying a version. This meant
that the installed versions of openvswitch-pki and openvswitch-common
could easily get out of sync. This commit makes all of the dependencies
among openvswitch packages specify an explicit version, which should fix
this problem.
CC: Dan Wendlandt <dan@nicira.com>
Some distributions automatically set /proc/sys/kernel/core_uses_pid to 1
and others leave it at its default setting of 0. That means that, with the
core_pattern that corekeeper was setting, on the former distributions the
PID would be included in core names and on the latter the PID would be
omitted. For consistency, this commit forces the PID to be in the core
file name in either case (note that putting %p in core_pattern causes
the core_uses_pid setting to be disregarded).
CC: Martin Casado <casado@nicira.com>
This was a somewhat difficult merge since there was a fair amount of
superficially divergent development on the two branches, especially in the
datapath.
This has been build-tested against XenServer 5.5.0 and XenServer 5.7.0
build 15122. It has been booted and connected to XenCenter on 5.5.0.
The merge revealed a couple of outstanding bugs, which will be fixed on
citrix and then merged back into master.
Before now, the default probe interval (the idle time after which an echo
request is sent on an OpenFlow connection) was set to 15 seconds. The
fail-open timeout is 3 times the probe interval, so this meant that it
took 45 seconds for a switch to fail open.
Users at Nicira have commented that this is too long. They don't like the
idea that the network will be down for most of a minute before it begins to
recover. So this commit changes the default probe interval to 5 seconds,
hence the fail-open timeout to 15 seconds.
Users at Nicira have commented that a maximum reconnection time of 15
seconds, which was the default, is too long. This commit cuts it to 8
seconds, on the theory that an administrator is willing to wait that long
before deciding that a change that should restore connectivity did not
work.
Until now, setting a netflow collector to a DNS name would cause
secchan to attempt to resolve that DNS name each time that the set of
netflow collectors is re-set. For the vswitch, this is every time that
the vswitch reconfigures itself.
Unfortunately, DNS lookup within secchan cannot work as currently
implemented, because it needs both an asynchronous DNS resolver library
and in-band control updates. Currently we have neither. Attempting to
look up DNS anyway just hangs.
This commit disables DNS lookup entirely, and updates the documentation to
change user expectations. DNS still won't work, but at least it won't
hang.
Bug #1609.
We've gone through a couple of iterations for names of these mailing
lists. Currently, there are three: announce, discuss, and git. There
are aliases that point "bugs" and "dev" to the "discuss" mailing list.
This commit drops the "ovs-" prefix to mailing lists, since we're not
using them.
