Posts Tagged ‘smf’

Start Virtual NICs on OpenSolaris Boot

Wednesday, December 23rd, 2009

One of the more frustrating things I deal with on OpenSolaris is that every time I reboot, I have to manually bring up each virtual network interface in order to start all of my zones. There is a bug report for this problem that says a fix will be integrated into b132, which is just a few weeks away, but in the mean time, I’ve whipped up an SMF service to handle this for me. Create a file vnic.xml:

<?xml version="1.0"?>
<!DOCTYPE service_bundle SYSTEM "/usr/share/lib/xml/dtd/service_bundle.dtd.1">

<service_bundle type='manifest' name='vnic'>

<service
    name='network/vnic'
    type='service'
    version='1'>

    <dependency
        name='network_service'
        grouping='require_all'
        restart_on='none'
        type='service'>
        <service_fmri value='svc:/network/service' />
    </dependency>

    <dependent
        name='network_vnic'
        grouping='optional_all'
        restart_on='none'>
        <service_fmri value='svc:/system/zones' />
    </dependent>

    <exec_method
        type='method'
        name='start'
        exec='/usr/sbin/dladm up-vnic ${SMF_FMRI/*:/}'
        timeout_seconds='60' />

    <exec_method
        type='method'
        name='stop'
        exec=':true'
        timeout_seconds='60' />

    <property_group name='startd' type='framework'>
        <propval name='duration' type='astring' value='transient' />
    </property_group>

    <stability value='Unstable' />

    <template>
        <common_name>
            <loctext xml:lang='C'>
            Virtual Network Interface
            </loctext>
        </common_name>
        <documentation>
            <manpage title='dladm' section='1M'
                manpath='/usr/share/man' />
        </documentation>
    </template>
</service>

</service_bundle>

This service should run sometime after the network is started but before the zones are started. Load it in with svccfg -v import vnic.xml and create an instance of the service for each of the VNICs that you want to start. For example, if you want to start vnic0 on boot:

# svccfg -s vnic add vnic0
# svcadm refresh vnic0
# svcadm enable vnic0

UPDATE: Build 132 is out an this functionality has been integrated as the svc:/network/datalink-management:default service. The services that were added above can be removed by running svccfg delete vnic.

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Posted in System Administration | No Comments »

Mixer State in OpenSolaris

Wednesday, November 25th, 2009

I’ve recently installed OpenSolaris on my desktop and noticed that my volume settings do not persist between reboots. A quick search revealed that that functionality hasn’t been implemented yet. The thread suggested using the mixerctl command to save and restore the mixer state so I’ve thrown together an SMF service to do it automatically on boot and shutdown.

First, the script which should go into /lib/svc/method/sound-mixer:

#!/sbin/sh

. /lib/svc/share/smf_include.sh
smf_is_globalzone || exit $SMF_EXIT_OK

ctl_file=$(svcprop -p options/ctl_file $SMF_FMRI)

case "$1" in
'start')
        if [ ! -f $ctl_file ]; then
                echo "Mixer control file $ctl_file does not exist."
                exit $SMF_EXIT_OK
        fi

        if ! /usr/sbin/mixerctl -r $ctl_file; then
                echo "Error restoring mixer state."
                exit $SMF_EXIT_OK
        fi
        ;;

'stop')
        if ! /usr/sbin/mixerctl -f -s $ctl_file; then
                echo "Error saving mixer state."
                exit $SMF_EXIT_OK
        fi
        ;;

*)
        echo "Usage: $0 { start | stop }"
        exit $SMF_EXIT_ERR_CONFIG
        ;;
esac

exit $SMF_EXIT_OK

Second, the manifest which can be saved anywhere and loaded with svccfg -v import <manifest>:

<?xml version="1.0"?>
<!DOCTYPE service_bundle SYSTEM "/usr/share/lib/xml/dtd/service_bundle.dtd.1">

<service_bundle type='manifest' name='mixer'>

<service
       name='system/sound/mixer'
       type='service'
       version='1'>

        <create_default_instance enabled='true' />
        <single_instance />

        <dependency
           name='fs-local'
           grouping='require_all'
           restart_on='none'
           type='service'>
                <service_fmri value='svc:/system/filesystem/local' />
        </dependency>
       
        <dependency
           name='device-audio'
           grouping='require_all'
           restart_on='none'
           type='service'>
                <service_fmri value='svc:/system/device/audio' />
        </dependency>

        <exec_method
               type='method'
               name='start'
               exec='/lib/svc/method/sound-mixer start'
               timeout_seconds='60' />

        <exec_method
               type='method'
               name='stop'
               exec='/lib/svc/method/sound-mixer stop'
               timeout_seconds='60' />

        <property_group name='options' type='application'>
                <propval name='ctl_file' type='astring' value='/etc/sound/mixer.state' />
        </property_group>

        <property_group name='startd' type='framework'>
                <propval name='duration' type='astring' value='transient' />
        </property_group>

        <stability value='Unstable' />

        <template>
                <common_name>
                        <loctext xml:lang='C'>Mixer State Saver</loctext>
                </common_name>
                <documentation>
                        <manpage title='mixerctl' section='1M'
                           manpath='/usr/share/man' />
                </documentation>
        </template>

</service>

</service_bundle>

UPDATE: In b130, the audioctl command replaces mixerctl. In the sound-mixer script above, change /usr/sbin/mixerctl -r $ctl_file to /usr/bin/audioctl load-controls $ctl_file and /usr/sbin/mixerctl -f -s $ctl_file to /usr/bin/audioctl save-controls -f $ctl_file.

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Posted in Desktop | 1 Comment »