From 2b5f276f8766b7085d8b6ec54b21b6db7554a355 Mon Sep 17 00:00:00 2001
From: jim-p <jim@pingle.org>
Date: Fri, 23 Apr 2010 12:19:36 -0400
Subject: Improve NanoBSD slice updating/changing a bit, add some error
 checking. Resolves #534.

---
 etc/inc/pfsense-utils.inc        | 58 +++++++++++++++++++++++++++-------------
 etc/rc.nanobsd_switch_boot_slice | 27 +++++++++++++++++++
 usr/local/www/diag_nanobsd.php   | 19 ++++---------
 3 files changed, 72 insertions(+), 32 deletions(-)
 create mode 100644 etc/rc.nanobsd_switch_boot_slice

diff --git a/etc/inc/pfsense-utils.inc b/etc/inc/pfsense-utils.inc
index 6364d37..c6b897c 100644
--- a/etc/inc/pfsense-utils.inc
+++ b/etc/inc/pfsense-utils.inc
@@ -1933,12 +1933,18 @@ function nanobsd_get_active_slice() {
 function nanobsd_get_size() {
 	return strtoupper(file_get_contents("/etc/nanosize.txt"));
 }
-function nanobsd_set_boot_slice($slice) {
+function nanobsd_switch_boot_slice() {
 	global $SLICE, $OLDSLICE, $TOFLASH, $COMPLETE_PATH, $COMPLETE_BOOT_PATH;
 	global $GLABEL_SLICE, $UFS_ID, $OLD_UFS_ID, $BOOTFLASH;
 	global $BOOT_DEVICE, $REAL_BOOT_DEVICE, $BOOT_DRIVE, $ACTIVE_SLICE;
 	nanobsd_detect_slice_info();
 
+	if ($BOOTFLASH == $ACTIVE_SLICE) {
+		$slice = $TOFLASH;
+	} else {
+		$slice = $BOOTFLASH;
+	}
+
 	for ($i = 0; $i < ob_get_level(); $i++) { ob_end_flush(); }
 	ob_implicit_flush(1);
 	if(strstr($slice, "s2")) {
@@ -1961,20 +1967,15 @@ function nanobsd_set_boot_slice($slice) {
 	exec("sysctl kern.geom.debugflags=16");
 	exec("gpart set -a active -i {$ASLICE} {$BOOT_DRIVE}");
 	exec("/usr/sbin/boot0cfg -s {$ASLICE} -v /dev/{$BOOT_DRIVE}");
-	exec("/sbin/tunefs -L ${AGLABEL_SLICE} /dev/$ACOMPLETE_PATH");
-	exec("/bin/mkdir /tmp/{$AGLABEL_SLICE}");
-	exec("/sbin/fsck_ufs -y /dev/{$ACOMPLETE_PATH}");
-	exec("/sbin/mount /dev/ufs/{$AGLABEL_SLICE} /tmp/{$AGLABEL_SLICE}");
-	$fstab = <<<EOF
-/dev/ufs/{$AGLABEL_SLICE} / ufs ro 1 1
-/dev/ufs/cf /cf ufs ro 1 1
-EOF;
-	file_put_contents("/tmp/{$AGLABEL_SLICE}/etc/fstab", $fstab);
-	exec("/sbin/umount /tmp/{$AGLABEL_SLICE}");
+	// We can't update these if they are mounted now.
+	if ($BOOTFLASH != $slice) {
+		exec("/sbin/tunefs -L ${AGLABEL_SLICE} /dev/$ACOMPLETE_PATH");
+		nanobsd_update_fstab($AGLABEL_SLICE, $ACOMPLETE_PATH, $AOLD_UFS_ID, $AUFS_ID);
+	}
 	exec("/sbin/sysctl kern.geom.debugflags=0");
 	conf_mount_ro();
 }
-function nanobsd_clone_slice($dstslice) {
+function nanobsd_clone_slice() {
 	global $SLICE, $OLDSLICE, $TOFLASH, $COMPLETE_PATH, $COMPLETE_BOOT_PATH;
 	global $GLABEL_SLICE, $UFS_ID, $OLD_UFS_ID, $BOOTFLASH;
 	global $BOOT_DEVICE, $REAL_BOOT_DEVICE, $BOOT_DRIVE, $ACTIVE_SLICE;
@@ -1986,12 +1987,7 @@ function nanobsd_clone_slice($dstslice) {
 	exec("/bin/dd if=/dev/zero of=/dev/{$TOFLASH} bs=1m count=1");
 	exec("/bin/dd if=/dev/{$BOOTFLASH} of=/dev/{$TOFLASH} bs=64k");
 	exec("/sbin/tunefs -L {$GLABEL_SLICE} /dev/{$COMPLETE_PATH}");
-	exec("/bin/mkdir /tmp/{$GLABEL_SLICE}");
-	exec("/sbin/fsck_ufs -y /dev/{$COMPLETE_PATH}");
-	exec("/sbin/mount /dev/ufs/{$GLABEL_SLICE} /tmp/{$GLABEL_SLICE}");
-	exec("/bin/cp /etc/fstab /tmp/{$GLABEL_SLICE}/etc/fstab");
-	$status = exec("sed -i \"\" \"s/pfsense{$OLD_UFS_ID}/pfsense{$UFS_ID}/g\" /tmp/{$GLABEL_SLICE}/etc/fstab");
-	exec("/sbin/umount /tmp/{$GLABEL_SLICE}");
+	$status = nanobsd_update_fstab($GLABEL_SLICE, $COMPLETE_PATH, $OLD_UFS_ID, $UFS_ID);
 	exec("/sbin/sysctl kern.geom.debugflags=0");
 	if($status) {
 		return false;
@@ -1999,6 +1995,32 @@ function nanobsd_clone_slice($dstslice) {
 		return true;
 	}
 }
+function nanobsd_update_fstab($gslice, $complete_path, $oldufs, $newufs) {
+	$tmppath = "/tmp/{$gslice}";
+	$fstabpath = "/tmp/{$gslice}/etc/fstab";
+
+	exec("/bin/mkdir {$tmppath}");
+	exec("/sbin/fsck_ufs -y /dev/{$complete_path}");
+	exec("/sbin/mount /dev/ufs/{$gslice} {$tmppath}");
+	exec("/bin/cp /etc/fstab {$fstabpath}");
+
+	if (!file_exists($fstabpath)) {
+		$fstab = <<<EOF
+/dev/ufs/{$gslice} / ufs ro 1 1
+/dev/ufs/cf /cf ufs ro 1 1
+EOF;
+		if (file_put_contents($fstabpath, $fstab))
+			$status = true;
+		else
+			$status = false;
+	} else {
+		$status = exec("sed -i \"\" \"s/pfsense{$oldufs}/pfsense{$newufs}/g\" {$fstabpath}");
+	}
+	exec("/sbin/umount {$tmppath}");
+	exec("/bin/rmdir {$tmppath}");
+
+	return $status;
+}
 function nanobsd_detect_slice_info() {
 	global $SLICE, $OLDSLICE, $TOFLASH, $COMPLETE_PATH, $COMPLETE_BOOT_PATH;
 	global $GLABEL_SLICE, $UFS_ID, $OLD_UFS_ID, $BOOTFLASH;
diff --git a/etc/rc.nanobsd_switch_boot_slice b/etc/rc.nanobsd_switch_boot_slice
new file mode 100644
index 0000000..ccbed9c
--- /dev/null
+++ b/etc/rc.nanobsd_switch_boot_slice
@@ -0,0 +1,27 @@
+#!/usr/local/bin/php -q
+<?php
+require_once("globals.inc");
+require_once("config.inc");
+require_once("pfsense-utils.inc");
+
+global $g;
+global $SLICE, $OLDSLICE, $TOFLASH, $COMPLETE_PATH, $COMPLETE_BOOT_PATH;
+global $GLABEL_SLICE, $UFS_ID, $OLD_UFS_ID, $BOOTFLASH;
+global $BOOT_DEVICE, $REAL_BOOT_DEVICE, $BOOT_DRIVE, $ACTIVE_SLICE;
+nanobsd_detect_slice_info();
+
+if ($g['platform'] != "nanobsd") {
+	echo "This script can only be used on NanoBSD (embedded) images.\n";
+	exit(1);
+}
+
+echo "Boot slice  : {$BOOTFLASH} ({$BOOT_DEVICE})\n";
+echo "Active slice: {$ACTIVE_SLICE}\n\n";
+
+echo "Switching active slice...";
+nanobsd_switch_boot_slice();
+echo "Done.\n\n";
+nanobsd_detect_slice_info();
+echo "Boot slice  : {$BOOTFLASH} ({$BOOT_DEVICE})\n";
+echo "Active slice: {$ACTIVE_SLICE}\n\n";
+?>
\ No newline at end of file
diff --git a/usr/local/www/diag_nanobsd.php b/usr/local/www/diag_nanobsd.php
index fee325e..3e9bed1 100755
--- a/usr/local/www/diag_nanobsd.php
+++ b/usr/local/www/diag_nanobsd.php
@@ -74,7 +74,7 @@ if($_POST['bootslice']) {
 			<p/>&nbsp;
 		</div>
 EOF;
-	nanobsd_set_boot_slice($_POST['bootslice']);
+	nanobsd_switch_boot_slice();
 	$savemsg = "The boot slice has been set to " . nanobsd_get_active_slice();
 	// Survey slice info
 	nanobsd_detect_slice_info();
@@ -133,23 +133,14 @@ if ($savemsg)
 						<td width="22%" valign="top" class="vncell">Bootup</td>
 						<td width="78%" class="vtable">
 							<form action="diag_nanobsd.php" method="post" name="iform">
-								Bootup slice:
-								<select name='bootslice'>
-									<option value='<?php echo $BOOTFLASH; ?>'<?php if ($BOOTFLASH == $ACTIVE_SLICE) {?> selected<?php } ?>>
-										<?php echo $BOOTFLASH; ?>
-									</option>
-									<option value='<?php echo $TOFLASH; ?>'<?php if ($TOFLASH == $ACTIVE_SLICE) {?> selected<?php } ?>>
-										<?php echo $TOFLASH; ?>
-									</option>
-								</select>
+								Bootup slice is currently: <?php echo $ACTIVE_SLICE; ?>
+								<br/><br/>This will switch the bootup slice to the alternate slice.
 								<br/>
-								This will set the bootup slice.
+								<input type='hidden' name='bootslice' value='switch'>
+								<input type='submit' value='Switch Slice'></form>
 						</td>
 					</tr>
 					<tr>
-						<td valign="top" class="">&nbsp;</td><td><br/><input type='submit' value='Set bootup'></form></td>
-					</tr>
-					<tr>
 						<td colspan="2" valign="top" class="">&nbsp;</td>
 					</tr>					
 					<tr>
-- 
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