4 files changed, 188 insertions, 0 deletions
diff --git a/modules.d/90dmraid/61-dmraid-imsm.rules b/modules.d/90dmraid/61-dmraid-imsm.rules
new file mode 100644
index 0000000..8a6b215
--- /dev/null
+++ b/modules.d/90dmraid/61-dmraid-imsm.rules
@@ -0,0 +1,28 @@
+# This file causes block devices with RAID (dmraid) signatures to
+# automatically cause dmraid_scan to be run.
+# See udev(8) for syntax
+
+SUBSYSTEM!="block", GOTO="dm_end"
+ACTION!="add|change", GOTO="dm_end"
+# Also don't process disks that are slated to be a multipath device
+ENV{DM_MULTIPATH_DEVICE_PATH}=="1", GOTO="dm_end"
+
+ENV{ID_FS_TYPE}=="linux_raid_member", GOTO="dm_end"
+
+ENV{ID_FS_TYPE}!="*_raid_member", GOTO="dm_end"
+
+ENV{ID_FS_TYPE}=="isw_raid_member", ENV{rd_NO_MDIMSM}!="?*", GOTO="dm_end"
+ENV{ID_FS_TYPE}=="ddf_raid_member", ENV{rd_NO_MDDDF}!="?*", GOTO="dm_end"
+
+ENV{rd_NO_DM}=="?*", GOTO="dm_end"
+
+OPTIONS:="nowatch"
+
+ENV{DM_UDEV_DISABLE_OTHER_RULES_FLAG}=="1", GOTO="dm_end"
+
+PROGRAM=="/bin/sh -c 'for i in $sys/$devpath/holders/dm-[0-9]*; do [ -e $$i ] && exit 0; done; exit 1;' ", \
+    GOTO="dm_end"
+
+RUN+="/sbin/initqueue --onetime --unique --settled /sbin/dmraid_scan $env{DEVNAME}"
+
+LABEL="dm_end"
diff --git a/modules.d/90dmraid/dmraid.sh b/modules.d/90dmraid/dmraid.sh
new file mode 100755
index 0000000..b517320
--- /dev/null
+++ b/modules.d/90dmraid/dmraid.sh
@@ -0,0 +1,46 @@
+#!/bin/sh
+
+type getarg > /dev/null 2>&1 || . /lib/dracut-lib.sh
+
+devenc=$(str_replace "$1" '/' '\2f')
+
+[ -e /tmp/dmraid."$devenc" ] && exit 0
+
+: > /tmp/dmraid."$devenc"
+
+DM_RAIDS=$(getargs rd.dm.uuid -d rd_DM_UUID=)
+
+if [ -n "$DM_RAIDS" ] || getargbool 0 rd.auto; then
+    # run dmraid if udev has settled
+    info "Scanning for dmraid devices $DM_RAIDS"
+    SETS=$(dmraid -c -s)
+
+    if [ "$SETS" = "no raid disks" -o "$SETS" = "no raid sets" ]; then
+        return
+    fi
+
+    info "Found dmraid sets:"
+    echo "$SETS" | vinfo
+
+    if [ -n "$DM_RAIDS" ]; then
+        # only activate specified DM RAIDS
+        for r in $DM_RAIDS; do
+            for s in $SETS; do
+                if [ "${s##"$r"}" != "$s" ]; then
+                    info "Activating $s"
+                    dmraid -ay -i -p --rm_partitions "$s" 2>&1 | vinfo
+                fi
+            done
+        done
+    else
+        # scan and activate all DM RAIDS
+        for s in $SETS; do
+            info "Activating $s"
+            dmraid -ay -i -p --rm_partitions "$s" 2>&1 | vinfo
+            [ -e "/dev/mapper/$s" ] && kpartx -a "/dev/mapper/$s" 2>&1 | vinfo
+            udevsettle
+        done
+    fi
+
+    need_shutdown
+fi
diff --git a/modules.d/90dmraid/module-setup.sh b/modules.d/90dmraid/module-setup.sh
new file mode 100755
index 0000000..482ae96
--- /dev/null
+++ b/modules.d/90dmraid/module-setup.sh
@@ -0,0 +1,87 @@
+#!/bin/bash
+
+# called by dracut
+check() {
+    local holder
+    local dev
+
+    # if we don't have dmraid installed on the host system, no point
+    # in trying to support it in the initramfs.
+    require_binaries dmraid || return 1
+    require_binaries kpartx || return 1
+
+    [[ $hostonly ]] || [[ $mount_needs ]] && {
+        for dev in "${!host_fs_types[@]}"; do
+            [[ ${host_fs_types[$dev]} != *_raid_member ]] && continue
+
+            DEVPATH=$(get_devpath_block "$dev")
+
+            for holder in "$DEVPATH"/holders/*; do
+                [[ -e $holder ]] || continue
+                [[ -e "$holder/dm" ]] && return 0
+                break
+            done
+
+        done
+        return 255
+    }
+
+    return 0
+}
+
+# called by dracut
+depends() {
+    echo dm rootfs-block
+    return 0
+}
+
+# called by dracut
+cmdline() {
+    local dev
+    local -A _activated
+
+    for dev in "${!host_fs_types[@]}"; do
+        local holder DEVPATH DM_NAME
+        [[ ${host_fs_types[$dev]} != *_raid_member ]] && continue
+
+        DEVPATH=$(get_devpath_block "$dev")
+
+        for holder in "$DEVPATH"/holders/*; do
+            [[ -e $holder ]] || continue
+            dev="/dev/${holder##*/}"
+            DM_NAME="$(dmsetup info -c --noheadings -o name "$dev" 2> /dev/null)"
+            [[ ${DM_NAME} ]] && break
+        done
+
+        [[ ${DM_NAME} ]] || continue
+
+        if ! [[ ${_activated[${DM_NAME}]} ]]; then
+            printf "%s" " rd.dm.uuid=${DM_NAME}"
+            _activated["${DM_NAME}"]=1
+        fi
+    done
+}
+
+# called by dracut
+install() {
+    local _raidconf
+
+    if [[ $hostonly_cmdline == "yes" ]]; then
+        _raidconf=$(cmdline)
+        [[ $_raidconf ]] && printf "%s\n" "$_raidconf" >> "${initdir}/etc/cmdline.d/90dmraid.conf"
+    fi
+
+    inst_multiple dmraid
+    inst_multiple -o kpartx
+    inst "$(command -v partx)" /sbin/partx
+
+    inst "$moddir/dmraid.sh" /sbin/dmraid_scan
+
+    inst_rules 66-kpartx.rules 67-kpartx-compat.rules
+
+    inst_libdir_file "libdmraid-events*.so*"
+
+    inst_rules "$moddir/61-dmraid-imsm.rules"
+    #inst "$moddir/dmraid-cleanup.sh" /sbin/dmraid-cleanup
+    inst_hook pre-trigger 30 "$moddir/parse-dm.sh"
+}
diff --git a/modules.d/90dmraid/parse-dm.sh b/modules.d/90dmraid/parse-dm.sh
new file mode 100755
index 0000000..d7a6b69
--- /dev/null
+++ b/modules.d/90dmraid/parse-dm.sh
@@ -0,0 +1,27 @@
+#!/bin/sh
+
+# nodmraid for anaconda / rc.sysinit compatibility
+if ! getargbool 1 rd.dm -d -n rd_NO_DM || getarg "rd.dm=0" -d nodmraid; then
+    info "rd.dm=0: removing DM RAID activation"
+    udevproperty rd_NO_DM=1
+fi
+
+if ! command -v mdadm > /dev/null \
+    || ! getargbool 1 rd.md.imsm -d -n rd_NO_MDIMSM -n noiswmd \
+    || ! getargbool 1 rd.md -d -n rd_NO_MD; then
+    info "rd.md.imsm=0: no MD RAID for imsm/isw raids"
+    udevproperty rd_NO_MDIMSM=1
+fi
+
+if ! command -v mdadm > /dev/null \
+    || ! getargbool 1 rd.md.ddf -n rd_NO_MDDDF -n noddfmd \
+    || ! getargbool 1 rd.md -d -n rd_NO_MD; then
+    info "rd.md.ddf=0: no MD RAID for SNIA ddf raids"
+    udevproperty rd_NO_MDDDF=1
+fi
+
+DM_RAIDS=$(getargs rd.dm.uuid -d rd_DM_UUID=)
+
+if [ -z "$DM_RAIDS" ] && ! getargbool 0 rd.auto; then
+    udevproperty rd_NO_DM=1
+fi