udev: install disk/by-partuuid rules

Wheezy's udev (175-7.2) has broken rules for the /dev/disk/by-partuuid/
symlinks that ceph-disk relies on.  Install parallel rules that work.  On
new udev, this is harmless; old older udev, this will make life better.

Fixes: ceph#4865
Backport: cuttlefish
Signed-off-by: Sage Weil <[email protected]>

Makefile.am

@@ -10,6 +10,7 @@ EXTRA_DIST += \
 	src/test/cli \
 	src/test/downloads \
 	udev/50-rbd.rules \
+	udev/60-ceph-partuuid-workaround.rules \
 	udev/95-ceph-osd.rules \
 	udev/95-ceph-osd-alt.rules
 

debian/ceph.install

@@ -1,5 +1,6 @@
 etc/bash_completion.d/ceph
 lib/udev/rules.d/95-ceph-osd.rules
+lib/udev/rules.d/60-ceph-partuuid-workaround.rules
 usr/sbin/ceph-create-keys
 usr/sbin/ceph-disk
 usr/sbin/ceph-disk-activate

debian/rules

@@ -85,6 +85,7 @@ install: build
 	$(MAKE) DESTDIR=$(DESTDIR) install
 	sed -i "/dependency_libs/ s/'.*'/''/" `find . -name '*.la'`
 	install -D -m 644 udev/50-rbd.rules $(DESTDIR)/lib/udev/rules.d/50-rbd.rules
+	install -D -m 644 udev/60-ceph-partuuid-workaround.rules $(DESTDIR)/lib/udev/rules.d/60-ceph-partuuid-workaround.rules
 	install -D -m 644 udev/95-ceph-osd.rules $(DESTDIR)/lib/udev/rules.d/95-ceph-osd.rules
 
 # Add here commands to install the package into debian/testpack.

udev/60-ceph-partuuid-workaround.rules

@@ -0,0 +1,34 @@
+#
+# this is a kludge installed by ceph to fix the /dev/disk/by-partuuid 
+# symlinks on systems with old udev (< 180).  it's a stripped down 
+# version of a newer 60-persistent-storage.rules file that hopefully 
+# captures the same set of conditions for setting up those symlinks.
+#
+
+# forward scsi device event to corresponding block device
+ACTION=="change", SUBSYSTEM=="scsi", ENV{DEVTYPE}=="scsi_device", TEST=="block", ATTR{block/*/uevent}="change"
+
+ACTION=="remove", GOTO="persistent_storage_end_two"
+
+SUBSYSTEM!="block", GOTO="persistent_storage_end_two"
+
+# skip rules for inappropriate block devices
+KERNEL=="fd*|mtd*|nbd*|gnbd*|btibm*|dm-*|md*", GOTO="persistent_storage_end_two"
+
+# ignore partitions that span the entire disk
+TEST=="whole_disk", GOTO="persistent_storage_end_two"
+
+# for partitions import parent information
+ENV{DEVTYPE}=="partition", IMPORT{parent}="ID_*"
+
+# skip unpartitioned removable media devices from drivers which do not send "change" events
+ENV{DEVTYPE}=="disk", KERNEL!="sd*|sr*", ATTR{removable}=="1", GOTO="persistent_storage_end_two"
+
+# probe filesystem metadata of disks
+KERNEL!="sr*", IMPORT{program}="/sbin/blkid -o udev -p $tempnode"
+
+# by-partlabel/by-partuuid links (partition metadata)
+ENV{ID_PART_ENTRY_SCHEME}=="gpt", ENV{ID_PART_ENTRY_UUID}=="?*", SYMLINK+="disk/by-partuuid/$env{ID_PART_ENTRY_UUID}"
+ENV{ID_PART_ENTRY_SCHEME}=="gpt", ENV{ID_PART_ENTRY_NAME}=="?*", SYMLINK+="disk/by-partlabel/$env{ID_PART_ENTRY_NAME}"
+
+LABEL="persistent_storage_end_two"