From c0841ca57c76621111ed163448a0625c8c9c3256 Mon Sep 17 00:00:00 2001
From: Russ Allbery <rra@debian.org>
Date: Fri, 19 Aug 2005 00:37:34 +0000
Subject: [PATCH]   * Detect AFS caches on non-ext2/ext3 file systems and abort
 AFS client     initialization.  (Closes: #249315)

---
 debian/changelog           |  2 ++
 debian/openafs-client.init | 16 ++++++++++++++++
 2 files changed, 18 insertions(+)

diff --git a/debian/changelog b/debian/changelog
index 8cdb4d293..5e81cf8f8 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -5,6 +5,8 @@ openafs (1.3.87-2) unstable; urgency=low
     dynroot.  afs-newcell generates the server CellServDB directly to work
     around oddities with bos addhost.  Thanks to Fahemm Mitha and Sergio
     Gelato for analysis and patches.  (Closes: #322638)
+  * Detect AFS caches on non-ext2/ext3 file systems and abort AFS client
+    initialization.  (Closes: #249315)
   * Redo how library object files are found for the PAM module build to
     avoid assuming C locale character set behavior.  (Closes: #323582)
   * Remove the openafs-client warning against dynroot for the first system
diff --git a/debian/openafs-client.init b/debian/openafs-client.init
index a271fbfce..ce8caad88 100755
--- a/debian/openafs-client.init
+++ b/debian/openafs-client.init
@@ -121,6 +121,21 @@ choose_afsd_options() {
     fi
 }
 
+# Make sure that the cache file system type is ext2 or ext3.  No other file
+# system is supported for the cache, and generally bad things happen if a
+# different one is used.
+check_cache_fstype() {
+    CACHEPATH=`awk -F: '{print $2}' < /etc/openafs/cacheinfo`
+    FSTYPE=`stat -f -c '%T' "$CACHEPATH"`
+    if [ x"$FSTYPE" != x"ext2/ext3" ] ; then
+        echo ""
+        echo "ERROR: AFS cache at $CACHEPATH is on a $FSTYPE file system" >&2
+        echo "ERROR: Only ext2 or ext3 may be used for an AFS cache" >&2
+        echo "Aborting startup of AFS" >&2
+        exit 1
+    fi
+}
+
 # Start afsd.  Be careful not to start it if another one is already running,
 # as that has a bad tendency to hang the system.
 start_client() {
@@ -128,6 +143,7 @@ start_client() {
         echo "."
     else
         choose_afsd_options
+        check_cache_fstype
         echo " afsd."
         start-stop-daemon --start --quiet --exec /usr/sbin/afsd \
             -- $AFSD_OPTIONS
-- 
2.39.5