Bring in proper gmirror support for the GUI and notifications.

Made a general gmirror library to perform various gmirror tasks and get information, using some of the former widget logic to start. Updated widget to use this new code.
Added a Diag > GEOM Mirrors page that displays information about existing mirrors and perform various management tasks. Current actions include rebuilding a drive, forgetting disconnected mirror drives, insert/remove, deactivate/activate, clearing medatada. It's now possible to use the GUI to rebuild a failed mirror by performing a forget, then insert action to replace a missing/dead drive.
Also included is a notification setup. Mirror status is polled every 60 seconds, and if any aspect of the mirror changes, notifications are issues that alert in the GUI and by SMTP, etc.

1 files changed, 92 insertions, 0 deletions

diff --git a/usr/local/sbin/gmirror_status_check.php b/usr/local/sbin/gmirror_status_check.php
new file mode 100644
index 0000000..d507963
--- /dev/null
+++ b/usr/local/sbin/gmirror_status_check.php
@@ -0,0 +1,92 @@
+#!/usr/local/bin/php -f
+<?php
+/*
+	diag_gmirror.php
+	Copyright (C) 2014 Jim Pingle
+
+	Redistribution and use in source and binary forms, with or without
+	modification, are permitted provided that the following conditions are met:
+
+	1. Redistributions of source code must retain the above copyright notice,
+	this list of conditions and the following disclaimer.
+
+	2. Redistributions in binary form must reproduce the above copyright
+	notice, this list of conditions and the following disclaimer in the
+	documentation and/or other materials provided with the distribution.
+
+	THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+	INClUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+	AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+	AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+	OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+	SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+	INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+	CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+	ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+	POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/*
+	pfSense_BUILDER_BINARIES:	/sbin/gmirror	/sbin/geom	/usr/bin/grep	/usr/bin/egrep	/usr/bin/cut	/usr/bin/head
+	pfSense_BUILDER_BINARIES:	/sbin/mount	/usr/bin/awk	/usr/bin/sed
+	pfSense_MODULE:	gmirror
+*/
+
+require_once("config.inc");
+require_once("notices.inc");
+require_once("globals.inc");
+require_once("gmirror.inc");
+
+global $g;
+$status_file = "{$g['varrun_path']}/gmirror.status";
+
+$mirror_status = gmirror_get_status();
+$mirror_list = array_keys($mirror_status);
+sort($mirror_list);
+$notices = array();
+
+// Check for gmirror.status
+if (file_exists($status_file)) {
+	// If it exists, read status in
+	$previous_mirror_status = unserialize(file_get_contents($status_file));
+	$previous_mirror_list = array_keys($previous_mirror_status);
+	sort($previous_mirror_list);
+	if (count($previous_mirror_status) > 0) {
+		// Check list of current mirrors vs old mirrors, notify if one has appeared/disappeared
+		if ($mirror_list != $previous_mirror_list)
+			$notices[] = sprintf(gettext("List of mirrors changed. Old: (%s) New: (%s)"), implode(", ", $previous_mirror_list), implode(", ", $mirror_list));
+
+		// For each mirror, check the mirror status, notify if changed
+		foreach ($mirror_list as $mirror) {
+			if (is_array($previous_mirror_status[$mirror])) {
+				// Notify if the status changed
+				if ($mirror_status[$mirror]['status'] != $previous_mirror_status[$mirror]['status']) {
+					$notices[] = sprintf(gettext("Mirror %s status changed from %s to %s."), $mirror, $previous_mirror_status[$mirror]['status'], $mirror_status[$mirror]['status']);
+				}
+				// Notify if the drive count changed
+				if (count($mirror_status[$mirror]['components']) != count($previous_mirror_status[$mirror]['components'])) {
+					// Notify if the consumer count changed.
+					$notices[] = sprintf(gettext("Mirror %s consumer count changed from %d to %d."), $mirror, count($previous_mirror_status[$mirror]['components']), count($mirror_status[$mirror]['components']));
+				}
+				if (strtoupper($mirror_status[$mirror]['status']) == "DEGRADED") {
+					// Check the drive status as it may be different.
+					asort($mirror_status[$mirror]['components']);
+					asort($previous_mirror_status[$mirror]['components']);
+					if ($mirror_status[$mirror]['components'] != $previous_mirror_status[$mirror]['components'])
+						$notices[] = sprintf(gettext("Mirror %s drive status changed. Old: (%s) New: (%s)"),
+								$mirror,
+								implode(", ", $previous_mirror_status[$mirror]['components']),
+								implode(", ", $mirror_status[$mirror]['components']));
+				}
+			}
+		}
+	}
+}
+if (count($notices)) {
+	file_notice("gmirror", implode("\n ", $notices), "GEOM Mirror Status Change", 1);
+}
+// Write out current status if changed
+if ($mirror_status != $previous_mirror_status)
+	file_put_contents($status_file, serialize($mirror_status));
+
+?>
\ No newline at end of file