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$NetBSD: patch-core_platforms_netbsd_chio-changer,v 1.2 2021/02/01 09:08:43 kardel Exp $
NetBSD changer script using NetBSD chio command
--- core/platforms/netbsd/chio-changer.orig 2021-01-21 10:16:11.945124363 +0000
+++ core/platforms/netbsd/chio-changer
@@ -0,0 +1,134 @@
+#!/bin/sh
+#
+# Bareos interface to chio autoloader
+#
+# If you set in your Device resource
+#
+# Changer Command = "path-to-this-script/chio-changer %c %o %S %a %d"
+# you will have the following input to this script:
+#
+# So Bareos will always call with all the following arguments, even though
+# in come cases, not all are used.
+#
+# chio-changer "changer-device" "command" "slot" "archive-device" "drive-index"
+# $1 $2 $3 $4 $5
+#
+# N.B. If you change the script, take care to return either
+# the chio exit code or a 0. If the script exits with a non-zero
+# exit code, Bareos will assume the request failed.
+
+CHIO=chio
+AWK=awk
+
+# check parameter count on commandline
+check_parm_count() {
+ pCount=$1
+ pCountNeed=$2
+ if test $pCount -lt $pCountNeed; then
+ echo "usage: chio-changer ctl-device command [slot archive-device drive-index]"
+ echo " Insufficient number of arguments given."
+ if test $pCount -lt 2; then
+ echo " Mimimum usage is first two arguments ..."
+ else
+ echo " Command expected $pCountNeed arguments"
+ fi
+ exit 1
+ fi
+}
+
+params() {
+ eval $(${CHIO} -f $1 params | ${AWK} '/slots, / { print "slots=" $2 "; drives=" $4 "; picker=" $6 "; portals=" $8 "; totalslots=" ($2+$8) "; portalbase=" $2;}')
+ if [ "x$slots" = "x" ]; then
+ echo "unable to get changer parameters"
+ exit 1
+ fi
+}
+
+# Check for special cases where only 2 arguments are needed,
+# all others are a minimum of 5
+case $2 in
+ list|listall)
+ check_parm_count $# 2
+ ;;
+ slots)
+ check_parm_count $# 2
+ ;;
+ transfer)
+ check_parm_count $# 3
+ ;;
+ *)
+ check_parm_count $# 5
+ ;;
+esac
+
+
+# Setup arguments
+ctl=$1
+cmd="$2"
+slot=${3+`expr $3 - 1`}
+device=$4
+drive=$5
+
+params $ctl
+
+case $cmd in
+ unload)
+ ${CHIO} -f $ctl move drive $drive slot $slot
+ exit $?
+ ;;
+
+ load)
+ ${CHIO} -f $ctl move slot $slot drive $drive
+ exit $?
+ ;;
+
+ list)
+ ${CHIO} -f $ctl status voltags | ${AWK} -v portalbase=$portalbase ' \
+ /^(slot|drive) .*ACCESS.*FULL/ { if (slot != "") { print slot tag; } slot=($2+1) ":"; next; } \
+ /^(slot|drive)/ { if (slot != "") { print slot tag; } slot=""; next; } \
+ /^portal .*ACCESS.*FULL/ { if (slot != "") { print slot tag; } slot=($2+1+portalbase) ":"; next; } \
+ /^portal/ { if (slot != "") { print slot tag; } slot=""; next; } \
+ /Primary volume tag:/ { tag=$4; next;} \
+ /From: slot/ { slot=($3+1) ":"; next;} \
+ END { if (slot != "") { print slot tag; } } \
+ '
+ ;;
+
+ listall)
+ ${CHIO} -f $ctl status voltags | ${AWK} -v portalbase=$portalbase ' \
+ BEGIN { t["slot"] = "S"; t["drive"] = "D"; t["portal"] = "I"; state = "E"; type = "?";} \
+ /^(slot|drive) [0-9]+: <.*ACCESS.*FULL/ { if (slot != "") { print type ":" slot ":" state tag; } slot=($2+1); type = t[$1]; state = "F"; next; } \
+ /^(slot|drive) [0-9]+: <.*ACCESS/ { if (slot != "") { print type ":" slot ":" state tag; } slot=($2+1); type = t[$1]; state = "E"; next; } \
+ /^portal [0-9]+: <.*(INEAB|EXENAB).*ACCESS.*FULL/ { if (slot != "") { print type ":" slot ":" state tag; } slot=($2+1+portalbase); type = t[$1]; state = "F"; next; } \
+ /^portal [0-9]+: <.*(INEAB|EXENAB).*ACCESS/ { if (slot != "") { print type ":" slot ":" state tag; } slot=($2+1+portalbase); type = t[$1]; state = "E"; next; } \
+ /Primary volume tag:/ { if (NF > 5) { tag=":" $4; } else { tag=""; } next;} \
+ /From: slot/ { if (type == "D") { state = state ":" ($3+1); } next;} \
+ END { if (slot != "") { print type ":" slot ":" state tag; } } \
+ '
+ ;;
+
+ loaded)
+ ${CHIO} -f $ctl status drive $drive | ${AWK} 'BEGIN { from=0 }\
+ /From:/{ from=$3+1; }\
+ END { print from }'
+ ;;
+
+ slots)
+ echo $totalslots
+ ;;
+
+ transfer)
+ if [ $slot -ge $portalbase ]; then
+ src="portal $(($slot - $portalbase))"
+ else
+ src="slot $slot"
+ fi
+ if [ $device -gt $portalbase ]; then
+ tgt="portal $(($device - $portalbase - 1))"
+ else
+ tgt="slot $(($device - 1))"
+ fi
+ ${CHIO} -f $ctl move $src $tgt
+ exit $?
+ ;;
+esac
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