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vdev_id: improve keyword parsing flexibility

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The vdev_id udev helper strictly requires configuration file keywords
to always be anchored at the beginning of the line and to be followed
by a space character.  However, users may prefer to use indentation or
tab delimitation.  Improve flexibility by simply requiring a keyword
to be the first field on the line.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #1239
This commit is contained in:
Ned Bass 2013-01-24 14:19:03 -08:00 committed by Brian Behlendorf
parent e528c9b461
commit ba43f4565a
1 changed files with 11 additions and 9 deletions
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20
cmd/vdev_id/vdev_id
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@ -112,7 +112,7 @@ map_slot() {
local LINUX_SLOT=$1
local MAPPED_SLOT=
MAPPED_SLOT=`awk "/^slot / && \\$2 == ${LINUX_SLOT} \
MAPPED_SLOT=`awk "\\$1 == \"slot\" && \\$2 == ${LINUX_SLOT} \
{ print \\$3; exit }" $CONFIG`
if [ -z "$MAPPED_SLOT" ] ; then
MAPPED_SLOT=$LINUX_SLOT
@ -127,13 +127,13 @@ map_channel() {
case $TOPOLOGY in
"sas_switch")
MAPPED_CHAN=`awk "/^channel / && \\$2 == ${PORT} \
MAPPED_CHAN=`awk "\\$1 == \"channel\" && \\$2 == ${PORT} \
{ print \\$3; exit }" $CONFIG`
;;
"sas_direct")
MAPPED_CHAN=`awk "/^channel / && \\$2 == \"${PCI_ID}\" && \
\\$3 == ${PORT} { print \\$4; exit }" \
$CONFIG`
MAPPED_CHAN=`awk "\\$1 == \"channel\" && \
\\$2 == \"${PCI_ID}\" && \\$3 == ${PORT} \
{ print \\$4; exit }" $CONFIG`
;;
esac
printf "%s" ${MAPPED_CHAN}
@ -141,7 +141,8 @@ map_channel() {
sas_handler() {
if [ -z "$PHYS_PER_PORT" ] ; then
PHYS_PER_PORT=`awk "/^phys_per_port /{print \\$2;exit}" $CONFIG`
PHYS_PER_PORT=`awk "\\$1 == \"phys_per_port\" \
{print \\$2; exit}" $CONFIG`
fi
PHYS_PER_PORT=${PHYS_PER_PORT:-4}
if ! echo $PHYS_PER_PORT | grep -q -E '^[0-9]+$' ; then
@ -150,7 +151,8 @@ sas_handler() {
fi
if [ -z "$MULTIPATH_MODE" ] ; then
MULTIPATH_MODE=`awk "/^multipath /{print \\$2; exit}" $CONFIG`
MULTIPATH_MODE=`awk "\\$1 == \"multipath\" \
{print \\$2; exit}" $CONFIG`
fi
# Use first running component device if we're handling a dm-mpath device
@ -303,7 +305,7 @@ alias_handler () {
fi
# Check both the fully qualified and the base name of link.
for l in $link `basename $link` ; do
alias=`awk "/^alias / && \\$3 == \"${l}\" \
alias=`awk "\\$1 == \"alias\" && \\$3 == \"${l}\" \
{ print \\$2; exit }" $CONFIG`
if [ -n "$alias" ] ; then
echo ${alias}${DM_PART}
@ -346,7 +348,7 @@ if [ -z "$DEV" ] ; then
fi
if [ -z "$TOPOLOGY" ] ; then
TOPOLOGY=`awk "/^topology /{print \\$2; exit}" $CONFIG`
TOPOLOGY=`awk "\\$1 == \"topology\" {print \\$2; exit}" $CONFIG`
fi
# First check if an alias was defined for this device.